CN203190729U - Full-automatic gas recovery charging device - Google Patents
Full-automatic gas recovery charging device Download PDFInfo
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- CN203190729U CN203190729U CN 201320072756 CN201320072756U CN203190729U CN 203190729 U CN203190729 U CN 203190729U CN 201320072756 CN201320072756 CN 201320072756 CN 201320072756 U CN201320072756 U CN 201320072756U CN 203190729 U CN203190729 U CN 203190729U
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Abstract
The utility model provides a full-automatic gas recovery charging device. The full-automatic gas recovery charging device comprises a first pipeline, a first oil separator, a compressor, a second oil separator, a working tank and a second pipeline, wherein one end of the first pipeline is communicated with a low-pressure charging end of a car air conditioner system, the first oil separator is communicated with the first pipeline and the compressor, the working tank is communicated with the compressor and the second pipeline, and the second pipeline is communicated with a high-pressure charging end of the car air conditioner system. A first solenoid valve is arranged on the first pipeline, the first solenoid valve controls the first pipeline to be opened and closed, a second solenoid valve is arranged on the second pipeline, and the second solenoid valve controls the second pipeline to be opened and closed. The full-automatic gas recovery charging device further comprises a first pressure sensor and a controller. When the full-automatic gas recovery charging device is connected with the car air conditioner system, the first pressure sensor is connected with the car air conditioner system, and is used for detecting the pressure of the interior of the car air conditioner system, and the controller is electrically connected with the first pressure sensor, the first solenoid valve, the compressor and the second solenoid valve.
Description
Technical field
The utility model relates to air conditioning for automobiles service equipment technical field, relates in particular to a kind of full automatic gas and reclaims filling device.
Background technology
In automobile air conditioning refrigerating system concrete maintenance and refrigerant charging process, be unable to do without cold-producing medium discharging or recovery, vacuumize and basic operation such as fill.When repairing automotive air-conditioning system, often need take air-conditioning system apart, at this moment just cold-producing medium in the system need be reclaimed or discharges.For the air-conditioning system of taking repairing apart or find its cold-producing medium air-conditioning system very little, must be with the vavuum pump air-conditioning system of finding time fully before adding new cold-producing medium, purpose is in order to remove air and the moisture in the air-conditioning system.Finish vacuumize after, under the leak free situation of affirmation system, just can quantitatively fill air-conditioning system.
At present, the recovery filling system of automobile air-conditioning refrigeration agent is that manually opened valve is also by the perusal Pressure gauge, artificially rule of thumb judge and reclaim, purify, fill operation, perhaps decompose out for part relative fixed shirtsleeve operation process, such as the reclaiming clean process, the process of filling is carried out intelligentized operation according to simple control strategy, in any case but still need artificial participation and the influence of experience.
Prior art is stronger for manually operated dependence, needs working hour to be engraved in the machine next door and intervenes or manual operation.Like this, have following problem: 1) for the having relatively high expectations of operative employee, need the training of specialty, and in the industrial operation technology of complexity easily the people for makeing mistakes; And the consequence of bringing may be that automobile air-conditioning refrigeration agent recovery is insufficient, it is not thorough to hunt leak, and does not have and cleans, and fills inaccuracy, and then damage car air-conditioning, 2) operative employee is when busy, and the minimizing operating procedure of can loafing on the job is perhaps operated not according to working specification, violation discharging that causes cold-producing medium etc. influences equipment or causes problem of environment such as atmosphere pollution, 3) government regulation requires cold-producing medium to fill by reclaiming clean, because the intervention of human factor, and cause and can't supervise.4) and for maintenance company, the spent artificial increase of maintenance air-conditioning increases cost.
The utility model content
The purpose of this utility model is to provide a kind of full automatic gas to reclaim filling device, and this device can full automatic working, does not need manual intervention, can either reduce operation easier, can make the operations specificationization of equipment again.
To achieve these goals, the utility model provides a kind of full automatic gas to reclaim filling device, comprises first pipeline, first oil eliminator, compressor, second oil eliminator, work jar and second pipeline; Described first pipeline, one end fills end with the low pressure of automotive air-conditioning system and is communicated with, described first oil eliminator is communicated with first pipeline and compressor respectively, described work jar respectively with described compressor and second pipeline connection, the high pressure of described second pipeline and automotive air-conditioning system fills end and is communicated with; Also be provided with first magnetic valve at the described first pipeline place, described first magnetic valve is used for the break-make of control first pipeline, is provided with second magnetic valve at the described second pipeline place, and described second magnetic valve is used for the break-make of control second pipeline; Described full automatic gas reclaims filling device and also comprises first pressure sensor and controller, when full automatic gas recovery filling device links to each other with automotive air-conditioning system, described first pressure sensor is connected with automotive air-conditioning system, for detection of the automotive air-conditioning system pressure inside, described controller is electrically connected with first pressure sensor, first magnetic valve, compressor and second magnetic valve respectively.
Further, also comprise first temperature sensor, when full automatic gas recovery filling device linked to each other with automotive air-conditioning system, described first temperature sensor was connected with automotive air-conditioning system, is used for measured automobiles air-conditioning system temperature inside.
Further, on described first pipeline, between first magnetic valve and described first oil eliminator, also be provided with the 3rd magnetic valve and second pressure sensor, described the 3rd magnetic valve is used for the flow that restriction enters the cold-producing medium of first oil eliminator, described second pressure sensor is for detection of the pressure of the cold-producing medium that enters first oil eliminator, and described controller is according to the break-make of signal controlling the 3rd magnetic valve of second sensor.
Further, between described first oil eliminator and described compressor, be provided with device for drying and filtering, be used for the dry cold-producing medium that transfers out from first oil eliminator.
Further, between described second oil eliminator and work jar, be provided with heat exchanger, be used for making the gaseous refrigerant that transfers out from second oil eliminator become liquid state.
Further, described work jar has a gaseous state end, described gaseous state end and one the 4th magnetic valve and the 3rd pressure sensor and second temperature sensor link to each other, described the 4th magnetic valve is used for the break-make of control work jar gaseous state end, and controller is according to the unlatching of signal controlling the 4th magnetic valve of the 3rd pressure sensor and second temperature sensor and close.
Further, also comprise the 3rd pipeline and the 4th pipeline, described the 3rd pipeline one end fills end with the low pressure of automotive air-conditioning system and is communicated with, the other end is communicated with the work jar, described the 3rd pipeline is provided with the 5th magnetic valve, described the 5th magnetic valve is used for the break-make of control the 3rd pipeline, described the 4th pipeline one end fills end with the high pressure of automotive air-conditioning system and is communicated with, the other end is communicated with first oil eliminator, described the 4th pipeline is provided with the 6th magnetic valve, and described the 6th magnetic valve is used for the break-make of control the 4th pipeline.
Further, also comprise one the 7th magnetic valve, described the 7th magnetic valve one end links to each other with first oil eliminator, and the other end links to each other with the work jar, forms cold-producing medium reclaims filling device inside at full automatic gas self-circulation channel.
Further, be provided with a weighing device at described work pot bottom, be used for the weight of real-time monitoring jar cold-producing medium, and monitor signal is passed to controller.
Further, further comprise an oiling device, described oiling device fills end by an oiling magnetic valve with the high pressure of described automotive air-conditioning system and is communicated with, be used for lubricating oil is injected automotive air-conditioning system inside, described oiling device bottom is provided with a weighing device, be used for the weight of the lubricating oil of monitoring oiling device inside in real time, and monitor signal is passed to controller.
Further, comprise a fluorescer filling device, described fluorescer filling device fills magnetic valve by a fluorescer and is communicated with the filled end of the high pressure of described automotive air-conditioning system, when automotive air-conditioning system need overhaul, fluorescer is injected automotive air-conditioning system inside, described fluorescer filling device bottom is provided with a weighing device, is used for the weight of the fluorescer of monitoring fluorescer filling device inside in real time, and monitor signal is passed to controller.
Further, comprise a vacuum extractor, described vacuum extractor vacuumizes magnetic valve by one and is communicated with the filled end of the low pressure of described automotive air-conditioning system and the filled end of high pressure, is used for automotive air-conditioning system is carried out vacuum pumping.
Further, an external refrigerant memory is communicated with described first oil eliminator by a magnetic valve, is used for that external refrigerant is replenished full automatic gas and reclaims filling device.
Further, described first oil eliminator is communicated with a discharge equipment by an oil drain solenoid valve, be used for the isolated lubricating oil of first oil eliminator is discharged into discharge equipment, described discharge equipment bottom is provided with a weighing device, be used for the weight of the lubricating oil of monitoring discharge equipment inside in real time, and monitor signal is passed to controller.
A kind of employing above-mentionedly stated full automatic gas and reclaimed the method that filling device reclaims cold-producing medium, comprises the steps:
(1) first pipeline is connected to automotive air-conditioning system, the described controller force value signal that transmission comes according to first pressure sensor judges that whether the cold-producing medium of automotive air-conditioning system inside is fit to reclaim, and reclaims as if being fit to, then execution in step (2), if be not suitable for reclaiming, then do not operate;
(2) controller is controlled first magnetic valve and compressor unlatching, and cold-producing medium is drawn into the refrigerant-recovery filling device from the inside of automotive air-conditioning system, successively through first oil eliminator, compressor, second oil eliminator, and enters the work jar;
(3) controller receives the force value that the transmission of first pressure sensor comes, and second pressure set points of storing in this force value and the controller compared, if described force value is higher than second pressure set points, then do not close first magnetic valve and compressor, if described force value is less than or equal to second pressure set points, then controller control compressor and first closed electromagnetic valve are finished the recovery of cold-producing medium.
Further comprise the steps:
(11) described first pressure sensor detects the automotive air-conditioning system internal pressure, and produces the force value signal;
(12) described controller receives the force value signal of described first pressure sensor, second pressure set points of storing in force value signal and the controller compares, if force value is less than or equal to first pressure set points, then full automatic gas recovery filling device does not carry out refrigerant-recovery, if force value is greater than first pressure set points, execution in step (2).
A kind of method that adopts the filled cold-producing medium of above-mentioned full automatic gas recovery filling device, be provided with a weighing device at described work pot bottom, the weight that is used for real-time monitoring jar cold-producing medium, and monitor signal passed to controller, described method comprises the steps:
(1) second pipeline is connected to automotive air-conditioning system;
(2) weight of cold-producing medium in the weighing device monitoring jar, and jar initial weight value of will working passes to controller;
(3) described controller is controlled the unlatching of second magnetic valve, and cold-producing medium is drawn into the automotive air-conditioning system from the work jar;
(4) weight of cold-producing medium in the real-time surveying work jar of weighing device, and described gravimetric value passed to controller, the refrigerant charge of storage in advance sets value and compares in the gravimetric value that controller is next with the weighing device transmission and the difference of work jar initial weight value and the controller, if described difference sets value less than refrigerant charge, then carry out refrigerant charging, if described difference is equal to or greater than the refrigerant charge setting value, then stop refrigerant charging.
Advantage of the present utility model is, evade old pointer Pressure gauge fully, parts such as manually-operated gate, and use electronic signal detecting element and magnetic valve to substitute, judgement gaseous state according to system's internal pressure and temperature detection signal feedback, electric actuator according to software control, make the magnetic valve at each position of equipment open as required or close, the full intellectualized operation of internal procedure, and provide the high pressure interrupting device to prevent unexpected the generation, do not need whole process can no longer carry out any manual operation and artificial experience judgement like this.So both reduced the difficulty requirement of operation, the operation of equipment can be standardized, each flow process can both be in strict accordance with laws and regulations requirement, and the necessary condition of third party's monitoring is provided.
Description of drawings
Figure 1 shows that the full automatic gas of the utility model reclaims the structure diagram of filling device;
Figure 2 shows that a kind of method flow diagram that adopts full automatic gas to reclaim filling device recovery cold-producing medium of the utility model;
Figure 3 shows that a kind of method flow diagram that adopts full automatic gas to reclaim the filled cold-producing medium of filling device of the utility model;
Reference numeral is represented respectively:
1, first pipeline; 2, first oil eliminator; 3, compressor; 4, second oil eliminator; 5 work jars; 6, second pipeline; 7, low pressure fills end; 8, high pressure fills end; 9, controller; 10, device for drying and filtering; 11, heat exchanger; 12, the 3rd pipeline; 13, the 4th pipeline; 14, oiling device; 15, fluorescer filling device; 16, vacuum extractor; 17, external refrigerant memory; 18, discharge equipment; S1, first magnetic valve; S2, second magnetic valve; S3, the 3rd magnetic valve; S4, the 4th magnetic valve; S5, the 5th magnetic valve; S6, the 6th magnetic valve; S7, the 7th magnetic valve; S8, oiling magnetic valve; S9, fluorescer fill magnetic valve; S10, vacuumize magnetic valve; S11, external refrigerant memory magnetic valve; S12, oil drain solenoid valve; S13, oil return solenoid valve; P1, first pressure sensor; P2, second pressure sensor; P3, the 3rd pressure sensor; T1, first temperature sensor; T2, second temperature sensor; The weighing device of SC1, work jar; The weighing device of SC2, discharge equipment; The weighing device of SC3, oiling device; The weighing device of SC4, fluorescer filling device.
The specific embodiment
The specific embodiment that the full automatic gas that the utility model is provided below in conjunction with accompanying drawing reclaims filling device and reclaims the method for filling elaborates.
Figure 1 shows that the full automatic gas of the utility model reclaims the structure diagram of filling device, referring to shown in Figure 1, full automatic gas reclaims filling device and comprises first pipeline 1, first oil eliminator 2, compressor 3, second oil eliminator 4, work jar 5 and second pipeline 6.
Described first pipeline, 1 one ends fill end 7 with the low pressure of automotive air-conditioning system and are communicated with, described first oil eliminator 2 is communicated with first pipeline 1 and compressor 3 respectively, described work jar 5 is communicated with described compressor 3 and second pipeline 6 respectively, and described second pipeline 6 fills end 8 with the high pressure of automotive air-conditioning system and is communicated with.After cold-producing medium is drawn out of from automotive air-conditioning system, through first pipeline 1, first oil eliminator 2, compressor 3, second oil eliminator 4, enter at last in the work jar 5 successively.
1 place also is provided with the first magnetic valve S1 at described first pipeline, and the described first magnetic valve S1 is used for the break-make of control first pipeline 1, and when the described first magnetic valve S1 opened, described first pipeline 1 was path, allows cold-producing medium to pass through.6 places are provided with the second magnetic valve S2 at described second pipeline, and the described second magnetic valve S2 is used for the break-make of control second pipeline 6, and when the described second magnetic valve S2 opened, described second pipeline 6 was path, allow cold-producing medium to pass through.
Described full automatic gas reclaims filling device and also comprises the first pressure sensor P1, the first temperature sensor T1, when full automatic gas recovery filling device links to each other with automotive air-conditioning system, the described first pressure sensor P1 and the first temperature sensor T1 are connected with automotive air-conditioning system, for detection of automotive air-conditioning system pressure inside and temperature.
Described full automatic gas reclaims filling device and also comprises controller 9, described controller 9 is electrically connected with the first pressure sensor P1, the first temperature sensor T1, the first magnetic valve S1, compressor 3, the second magnetic valve S2 respectively, described controller 9 is used for receiving the first pressure sensor P1 and the next signal of first temperature sensor T1 transmission, controls the break-make of the first magnetic valve S1 and the second magnetic valve S2.In controller, store one first pressure set points and cold-producing medium saturation scale directrix curve in advance, if the force value signal that first pressure sensor P1 transmission comes is less than first pressure set points, then do not carry out the recovery of cold-producing medium, if the force value signal that first pressure sensor P1 transmission comes is greater than first pressure set points, then carry out the recovery of cold-producing medium, if the curve that the first pressure sensor P1 and the first temperature sensor T1 corresponding relation are produced is different with the cold-producing medium saturation scale directrix curve of storage in the controller 9, then controller can be made the unpurified judgement of cold-producing medium.
Described first oil eliminator 2 is used for and will transmits the lubricating oil separation that next cold-producing medium contain from automotive air-conditioning system, makes simple cold-producing medium enter in the compressor 3.Described compressor 3 is used for and will transmits next cold-producing medium from low pressure gaseous state boil down to high-pressure gaseous from first oil eliminator 2.Described second oil eliminator 4 separates with cold-producing medium for the lubricating oil of the compressor that the cold-producing medium that compressor 3 is transmitted the high-pressure gaseous of coming contains, thereby pure cold-producing medium is conveyed into work jar 5, work jar 5 is used for store refrigerant, in order to cold-producing medium is filled into automotive air-conditioning system by second pipeline 6.
Further, on described first pipeline 1, between the first magnetic valve S1 and described first oil eliminator 2, also be provided with the 3rd magnetic valve S3 and the second pressure sensor P2, described the 3rd magnetic valve S3 is used for the flow that restriction enters the cold-producing medium of first oil eliminator 2, and the described second pressure sensor P2 is for detection of the pressure of the cold-producing medium that enters first oil eliminator 2.The described second pressure sensor P2 passes to controller 9 with the force value signal that detects, when force value during greater than first oil eliminator, the 2 pressure preset values that are stored in advance in the controller 9, controller 9 controls the 3rd magnetic valve S3 closes, do not allow cold-producing medium to flow into first oil eliminator 2, when force value during less than first oil eliminator, the 2 pressure preset values that are stored in advance in the controller 9, controller 9 controls the 3rd magnetic valve S3 opens, and allows cold-producing medium to flow into first oil eliminator 2.
Further, between described first oil eliminator 2 and described compressor 3, be provided with device for drying and filtering 10, be used for the dry cold-producing medium that transfers out from first oil eliminator 2.
Further, be provided with heat exchanger 11 at described second oil eliminator 4 and 5 in work jar, the gaseous refrigerant that transfers out from second oil eliminator 4 becomes liquid refrigerant through heat exchange heat exchanger 11.
Further, described work jar 5 has a gaseous state end, described gaseous state end and one the 4th magnetic valve S4 and the 3rd pressure sensor P3 and the second temperature sensor T2 link to each other, described the 4th magnetic valve S4 is used for the break-make of control work jar 5 gaseous state ends, and controller 9 is according to the unlatching of signal controlling the 4th magnetic valve S4 of the 3rd pressure sensor P3 and the second temperature sensor T2 and close.When if the curve made from the measurement numerical value of the 3rd pressure sensor P3 and the second temperature sensor T2 does not meet the calibration curve of the 3rd pressure sensor P3 that is stored in advance in the controller 9 and the second temperature sensor T2, the gas that other non-cold-producing medium is arranged in the explanation work jar 5, then controller 9 control the 4th magnetic valve S4 opens exhaust, up to be stored in controller 9 in advance in the 3rd pressure sensor P3 and the calibration curve of the second temperature sensor T2 corresponding till.
Further, also comprise the 3rd pipeline 12 and the 4th pipeline 13, described the 3rd pipeline 12 1 ends fill end 7 with the low pressure of automotive air-conditioning system and are communicated with, the other end is communicated with work jar 5, described the 3rd pipeline 12 is provided with the 5th magnetic valve S5, described the 5th magnetic valve S5 is used for the break-make of control the 3rd pipeline 12, described the 4th pipeline 13 1 ends fill end 8 with the high pressure of automotive air-conditioning system and are communicated with, the other end is communicated with first oil eliminator 2, described the 4th pipeline 13 is provided with the 6th magnetic valve S6, described the 6th magnetic valve S6 is used for the break-make of control the 4th pipeline 13, described the 3rd pipeline 12 is identical with the effect of first pipeline 1 and second pipeline 6 with the 4th pipeline 13, the 3rd pipeline 12 and the 4th pipeline 13 can be used as spare duct and use, when first pipeline 1 and second pipeline 6 break down, can enable the 3rd pipeline 12 and the 4th pipeline 13.
Further, full automatic gas reclaims filling device and also comprises one the 7th magnetic valve S7, described the 7th magnetic valve S7 one end links to each other with first oil eliminator 2, the other end links to each other with work jar 5, form cold-producing medium reclaims filling device inside at full automatic gas self-circulation channel, if controller 9 comes out cold-producing medium in automotive air-conditioning system when impure according to the first pressure sensor P1 and first temperature sensor T1 corresponding relation curve judgement place, then when cold-producing medium reclaims end from automotive air-conditioning system after, can close the first magnetic valve S1 and the second magnetic valve S2, open the 7th magnetic valve S7, make cold-producing medium reclaim the filling device inner loop at full automatic gas, cold-producing medium is successively through first oil eliminator 2 in the circulation, compressor 3, second oil eliminator 4, work jar 5, then through first oil eliminator 2, thereby realize the purification of cold-producing medium.
Further, be provided with a weighing device SC1 in described work jar 5 bottoms, the weight that is used for real-time monitoring jar 5 cold-producing mediums, and monitor signal passed to controller 9, when full automatic gas reclaims filling device and fills cold-producing medium in the automotive air-conditioning system, can obtain the amount of the cold-producing medium that fills in the automotive air-conditioning system according to weighing device SC1 monitor signal, thereby controller 9 can be controlled and when stops to fill.The weight of cold-producing medium in the real-time surveying work jar of weighing device SC1, and described gravimetric value passed to controller 9, the refrigerant charge that the automotive air-conditioning system of storage in advance needs in the gravimetric value that controller 9 comes weighing device SC1 transmission and the difference of work jar 5 initial weight value and the controller 9 sets value and compares, if described difference sets value less than refrigerant charge, then carry out refrigerant charging, if described difference is equal to or greater than the refrigerant charge setting value, then stop refrigerant charging.
Further, full automatic gas reclaims filling device and also comprises an oiling device 14, described oiling device 14 fills end 8 by an oiling magnetic valve S8 with the high pressure of described automotive air-conditioning system and is communicated with, be used for lubricating oil is injected automotive air-conditioning system inside, described oiling device 14 bottoms are provided with a weighing device SC3, be used for the weight of the lubricating oil of monitoring oiling device 14 inside in real time, and monitor signal is passed to controller 9.When needs inject lubricating oil in the automotive air-conditioning system, then controller 9 control oiling magnetic valve S8 open, lubricating oil is injected automotive air-conditioning systems by the filled end 8 of the high pressure of automotive air-conditioning system, weight in the weighing device SC3 weighing oiling device 14, the weight that oiling device 14 reduces is the weight that joins the lubricating oil in the automotive air-conditioning system, when the weight that reduces when oiling device 14 reaches the amount of the lubricant that the automotive air-conditioning system that stores in advance in the controller 9 needs, controller 9 control oiling magnetic valve S8 close, and stop oiling.
Further, full automatic gas reclaims filling device and also comprises a fluorescer filling device 15, described fluorescer filling device 15 fills magnetic valve S9 by a fluorescer and is communicated with the filled end 8 of the high pressure of described automotive air-conditioning system, when automotive air-conditioning system need overhaul, fluorescer is injected automotive air-conditioning system inside, described fluorescer filling device 14 bottoms are provided with a weighing device SC4, be used for the weight of the fluorescer of monitoring fluorescer filling device inside in real time, and monitor signal is passed to controller 9.When needs inject fluorescer in the automotive air-conditioning system, then controller 9 control fluorescers fill magnetic valve S9 unlatching, fluorescer is injected automotive air-conditioning systems by the filled end 8 of the high pressure of automotive air-conditioning system, weight in the weighing device SC4 weighing fluorescer filling device 15, the weight that fluorescer filling device 15 reduces is the weight that joins the fluorescer in the automotive air-conditioning system, when the weight that reduces when fluorescer filling device 15 reaches the amount of the fluorescer that the automotive air-conditioning system that stores in advance in the controller 9 needs, controller 9 control fluorescers fill magnetic valve S9 and close, and stop fluorescer and inject.
Further, full automatic gas reclaims filling device and comprises a vacuum extractor 16, described vacuum extractor 16 vacuumizes magnetic valve S10 by one and is communicated with the filled end 7 of the low pressure of described automotive air-conditioning system and the filled end 8 of high pressure, is used for automotive air-conditioning system is carried out vacuum pumping.For the air-conditioning system of taking repairing apart or find its cold-producing medium automotive air-conditioning system very little, must be with the vacuum extractor air-conditioning system of finding time fully before adding new cold-producing medium, purpose is in order to remove air and the moisture in the air-conditioning system.Finish vacuumize after, under the leak free situation of affirmation system, just can quantitatively fill air-conditioning system.
Further, one external refrigerant memory 17 is communicated with described first oil eliminator 2 by an external refrigerant memory magnetic valve S11, be used for that external refrigerant is replenished full automatic gas and reclaim filling device, when the cold-producing medium that reclaims from automotive air-conditioning system can not satisfy the demand of amount of the cold-producing medium that fills again, need extract cold-producing medium from external refrigerant memory 17 deposits in the work jar 5, in order to fill into automotive air-conditioning system, for automotive air-conditioning system provides sufficient cold-producing medium.
Further, described first oil eliminator 2 is communicated with a discharge equipment 18 by an oil drain solenoid valve S12, be used for first oil eliminator, 2 isolated lubricating oil are discharged into discharge equipment 18, described discharge equipment 18 bottoms are provided with a weighing device SC2, be used for the weight of the lubricating oil of monitoring discharge equipment 18 inside in real time, and monitor signal is passed to controller 9.
Further, the outlet of described compressor 3 is connected by an oil return solenoid valve S13 with the outlet of second oil eliminator 4, and the lubricating oil that described oil return solenoid valve S13 is used for second oil eliminator 4 is separated transmits back compressor 3, supplies with compressor 3 and uses.
The utility model also provides a kind of and adopts above-mentioned full automatic gas to reclaim the method that filling device reclaims cold-producing medium, and referring to shown in Figure 2, described method comprises the steps:
Step S20: first pipeline is connected to automotive air-conditioning system, the described controller force value signal that transmission comes according to first pressure sensor judges that whether the cold-producing medium of automotive air-conditioning system inside is fit to reclaim, and reclaims as if being fit to, then execution in step S21, if be not suitable for reclaiming, then do not operate.
Step S20 further comprises step (1) and step (2):
Step (1): described first pressure sensor detects the automotive air-conditioning system internal pressure, and produces the force value signal.
Step (2): described controller receives the force value signal of described first pressure sensor, and second pressure set points of storing in force value signal and the controller compared, if force value is less than or equal to second pressure set points, then full automatic gas recovery filling device does not carry out refrigerant-recovery, if force value is greater than second pressure set points, execution in step S21.
Described second pressure set points is stored in the controller in advance, and in the present embodiment, second pressure set points is 20psi, and described psi is the unit of pressure, 145psi=1MPa.Described controller is provided with a Users panel, judge the force value that first pressure sensor is measured when controller and be less than or equal to 20psi, the amount that cold-producing medium in the automotive air-conditioning system then is described seldom or do not have a cold-producing medium, then do not reclaim by Users panel suggestion user automotive air-conditioning system is vacuumized processing, for follow-up filled cold-producing medium is prepared.If force value, then illustrates the amount of cold-producing medium in the automotive air-conditioning system greater than the second pressure set points 20psi and is fit to reclaim purification again.
Step S21: first magnetic valve controlled by controller and compressor is opened, and cold-producing medium is drawn into the refrigerant-recovery filling device from the inside of automotive air-conditioning system, successively through first oil eliminator, compressor, second oil eliminator, and enters the work jar.
After controller is controlled first magnetic valve and compressor unlatching, form a pressure reduction in the part, thereby make cold-producing medium to be extracted from automotive air-conditioning system inside.The cold-producing medium that extracts from automotive air-conditioning system is the state that contains the gas-liquid two-phase of lubricating oil, open and close through the 3rd magnetic valve, in first oil eliminator, the lubricating oil separation that will contain from the cold-producing medium that automotive air-conditioning system transmission comes makes the cold-producing medium of gas-liquid two-phase become gaseous refrigerant and enters in the compressor.Described compressor will transmit next cold-producing medium from low pressure gaseous state boil down to high-pressure gaseous from first oil eliminator.The lubricating oil of the compressor that contains in the cold-producing medium of the high-pressure gaseous that described second oil eliminator is next with the compressor transmission separates with cold-producing medium, thereby pure cold-producing medium is conveyed into the work jar, work tank stores cold-producing medium is in order to fill cold-producing medium into automotive air-conditioning system by second pipeline.
Step S22: controller receives the force value that the transmission of first pressure sensor comes, and first pressure set points of storing in this force value and the controller compared, if described force value is higher than first pressure set points, execution in step S21 then, if described force value is less than or equal to first pressure set points, then controller control compressor and first closed electromagnetic valve are finished the recovery of cold-producing medium.
Described first force value is stored in the controller in advance, in the present embodiment, described first force value is that 0psi(is identical with atmospheric pressure), if the detected force value of first pressure sensor is less than or equal to the first pressure set points 0psi, illustrate that then refrigerant-recovery finishes, then controller is controlled compressor and first closed electromagnetic valve, if the detected force value of first pressure sensor is higher than the first pressure set points 0psi, then do not close first magnetic valve and compressor, proceed the recovery of cold-producing medium, be less than or equal to the first pressure set points 0psi until detecting the detected force value of first pressure sensor.
The utility model also provides a kind of and adopts described full automatic gas to reclaim the method that filling device fills cold-producing medium, be provided with a weighing device at described work pot bottom, the weight that is used for real-time monitoring jar cold-producing medium, and monitor signal passed to controller, referring to shown in Figure 3, described method comprises the steps:
Step S30: second pipeline is connected to automotive air-conditioning system.The high pressure that described second pipeline is connected to automotive air-conditioning system fills end.
Step S31: the weight of cold-producing medium in the weighing device monitoring jar, and jar initial weight value of will working passes to controller.Described weighing device is used for the amount of weighing work jar cold-producing medium.
Step S32: described controller is controlled second magnetic valve and is opened, and cold-producing medium is drawn into the automotive air-conditioning system from the work jar.
Cold-producing medium in the work jar is pure cold-producing medium, fills and enters automotive air-conditioning system.In other embodiments of the present utility model, when the amount of the cold-producing medium in the work jar can not satisfy the demand of cold-producing medium in the automotive air-conditioning system, also can from the external refrigerant storage tank, extract cold-producing medium, replenish in the adding automotive air-conditioning system.One external refrigerant memory is communicated with described first oil eliminator by a magnetic valve, be used for that external refrigerant is replenished full automatic gas and reclaim filling device, when the cold-producing medium that reclaims from automotive air-conditioning system can not satisfy the demand of amount of the cold-producing medium that fills again, need extract cold-producing medium from the external refrigerant memory deposits in the work jar, in order to fill into automotive air-conditioning system, for automotive air-conditioning system provides sufficient cold-producing medium.
Step S33: the weight of cold-producing medium in the real-time surveying work jar of weighing device, and described gravimetric value passed to controller, the refrigerant charge of storage in advance sets value and compares in the gravimetric value that controller is next with the weighing device transmission and the difference of work jar initial weight value and the controller, if described difference sets value less than refrigerant charge, then carry out refrigerant charging, if described difference is equal to or greater than the refrigerant charge setting value, then stop refrigerant charging.
Described controller is provided with Users panel, when the user need fill cold-producing medium, then the user can select the automobile model at control panel, controller can be sought the charging amount of the cold-producing medium of this automobile model correspondence according to the automobile model of user's input in corresponding database, and this refrigerant charge is stored in the controller in advance the refrigerant charge setting value of i.e. described storage in advance as standard value.If described difference sets value less than refrigerant charge, illustrate that then the refrigerant amount that fills in the automotive air-conditioning system can not satisfy the automotive air-conditioning system needs, then proceed refrigerant charging, if described difference is equal to or greater than the refrigerant charge setting value, illustrate that then the refrigerant amount that fills in the automotive air-conditioning system can satisfy the automotive air-conditioning system needs, then stop refrigerant charging.
Further, the utility model also provides a kind of method that fills lubricating oil in the automotive air-conditioning system, the step that described method comprises is: when needs inject lubricating oil in the automotive air-conditioning system, then controller control oiling magnetic valve is opened, lubricating oil is injected automotive air-conditioning system by the filled end of the high pressure of automotive air-conditioning system, the weight of weighing device weighing oiling device, the weight that oiling device reduces is the weight that joins the lubricating oil in the automotive air-conditioning system, when the weight that reduces when oiling device reaches the amount of the lubricant that the automotive air-conditioning system that stores in advance in the controller needs, controller control oiling closed electromagnetic valve stops oiling.
Further, the utility model also provides a kind of fluorescer is injected the inner method that detects automotive air-conditioning system of automotive air-conditioning system, described method comprises the steps: when needs inject fluorescer in the automotive air-conditioning system, then controller control fluorescer fills the magnetic valve unlatching, fluorescer is injected automotive air-conditioning system by the filled end of the high pressure of automotive air-conditioning system, the weight of weighing device weighing fluorescer filling device, the weight that the fluorescer filling device reduces is the weight that joins the fluorescer in the automotive air-conditioning system, when the weight that reduces when the fluorescer filling device reaches the amount of the fluorescer that the automotive air-conditioning system that stores in advance in the controller needs, controller control fluorescer fills closed electromagnetic valve, stops fluorescer and injects.
Further, the utility model also provides a kind of method that automotive air-conditioning system is vacuumized, described method comprises the steps: that (1) controller receives the force value that the transmission of first pressure sensor comes, if this force value vacuumizes the setting initial value greater than one, then vacuum extractor does not start, if this force value is set then vacuum extractor startup of initial value less than vacuumizing; (2) after vacuum extractor starts, controller receives the force value that the transmission of first pressure sensor comes, if reaching default vacuumizing, this force value stops force value, then controller cuts out and vacuumizes magnetic valve, vacuum finishes, if force value does not reach default vacuumizing and stops force value, then vacuumize and proceed.In the present embodiment, describedly vacuumize that to set initial value be 20psi, described default vacuumizing stops force value and is-30inHg.Wherein, 1in Hg=3386Pa.
Embodiment 1
Provide the full automatic gas of the utility model to reclaim filling device and embodiment of method below.
When full automatic gas reclaims filling device connection automotive air-conditioning system, need not any manual operation, first pressure sensor and first temperature sensor be the pressure and temperature of cold-producing medium in the feedback automotive air-conditioning system automatically, and the Users panel by controller shows.Simultaneously, controller determines through internal calculation whether refrigerant condition is fit to reclaim purification again by these 2 signals.In case the user confirms to carry out reclaiming clean, and with in the automobile model input controller, controller opens compressor and first magnetic valve form pressure reduction and lead the suction condition that forms cold-producing medium in local system.
In this process, first pressure sensor, second pressure sensor and the 3rd pressure sensor can be given controller with signal feedback in real time, and controller can decide when stop compressor and first magnetic valve according to the signal of this first pressure sensor; Decide the break-make of the 3rd magnetic valve according to second pressure sensor signal.
Last at recovery process, controller can be opened the oiling and open oil drain solenoid valve the isolated lubricating oil of first separator is discharged in the automotive air-conditioning system of oiling magnetic valve.After oil extraction finished, the weighing device that arranges under the discharge equipment can record oil extraction weight automatically and deposit controller in.
When first pressure sensor signal reaches in the controller vacuumizing of storage in advance and sets initial value, full automatic gas reclaims filling device can automatically switch to the pattern of vacuumizing, magnetic valve and the compressor opened before closing are opened automatically and are vacuumized magnetic valve and vavuum pump vacuumizes processing.Judge whether to finish to vacuumize flow process according to first pressure sensor signal equally.
In this process, controller can determine whether opening the exhaust that the 4th magnetic valve carries out the work jar according to the feedback of the 3rd pressure sensor and three-temperature sensor signal; Also can determine whether opening the 7th magnetic valve and compressor according to these 2 signals carries out inner self-loopa simultaneously and handles.Full automatic gas reclaims filling device and stops the pressurize leak detection that vavuum pump can be not less than 5 minutes afterwards, judge according to the signal feedback of first pressure sensor whether the automotive air-conditioning system of safeguarding leaks, if finally be judged as leakage, full automatic gas reclaims filling device can stop next step operation, and whether needs to carry out the filled leak detection of fluorescer by Users panel prompting user.If customer selecting is, full automatic gas reclaims filling device can open the filled magnetic valve of fluorescer automatically, and the feedback of the weighing device by being arranged on fluorescer filling device bottom is controlled the suitable fluorescence dosage of adding system, full automatic gas reclaims filling device and can open second magnetic valve automatically then, and add an amount of cold-producing medium and point out the user to carry out next step fluorescer leak detection work (this work relates to air conditioning for automobiles itself, and this equipment does not participate in).
If it is not leak that pressurize is before judged, after vacuumizing the flow process end so, full automatic gas reclaims filling device can automatically switch to the oiling pattern, and open the oiling magnetic valve and carry out oiling, the oil extraction weight of injection flow record before both the great and small come from it draws through system-computed again, and be stored in the controller as setting value, the weight of weighing device weighing oiling device, the weight that oiling device reduces is the weight that joins the lubricating oil in the automotive air-conditioning system, when the weight that reduces when oiling device reaches the amount of the lubricant that the automotive air-conditioning system that stores in advance in the controller needs, controller control oiling closed electromagnetic valve stops oiling.
After the oiling flow process is finished, full automatic gas reclaims filling device can determine whether that needs vacuumize again according to the value of feedback of first pressure sensor, the flow process that vacuumizes before can be entered if desired automatically, filled flow process will be do not entered automatically if do not need.Filled flow process can enter the refrigerant charge that database is sought this model air conditioning for automobiles automatically according to the automobile model of input before the user, this refrigerant charge is set value as refrigerant charge, open second magnetic valve then, form the local pressure reduction that fills pipeline and reach the purpose that fills cold-producing medium.In this process, be arranged on the real-time feedback operation jar actual weight of weighing device meeting of work pot bottom, if described work jar actual weight sets value less than refrigerant charge with the difference of work jar initial weight, illustrate that then the refrigerant amount that fills in the automotive air-conditioning system can not satisfy the automotive air-conditioning system needs, then proceed refrigerant charging, if described difference is equal to or greater than the refrigerant charge setting value, illustrate that then the refrigerant amount that fills in the automotive air-conditioning system can satisfy the automotive air-conditioning system needs, then stop refrigerant charging, close second magnetic valve.Yield in the whole full-automatic flow process, recovery time, the pumpdown time, injection flow, oil drain quantity and charging amount all can be recorded in the internal memory automatically, and can print by embedded printer at last in flow process, conveniently call inspection at any time.
In addition, the function that this fully-automatic equipment also provides automotive air-conditioning system to clean is in case the user selects to enter.Full automatic gas reclaims filling device and can judge whether according to the value of feedback of first pressure sensor to enter cleaning, if can, system meeting automatic first magnetic valve, second magnetic valve and compressor, reclaim big loop of formation in the filling device at whole automotive air-conditioning system and full automatic gas, utilize cold-producing medium to carry out the cleaning of air conditioning for automobiles pipeline.This flow process can stop automatically according to the default time.
The above only is preferred embodiment of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (14)
1. a full automatic gas reclaims filling device, comprises first pipeline, first oil eliminator, compressor, second oil eliminator, work jar and second pipeline;
Described first pipeline, one end fills end with the low pressure of automotive air-conditioning system and is communicated with, described first oil eliminator is communicated with first pipeline and compressor respectively, described work jar respectively with described compressor and second pipeline connection, the high pressure of described second pipeline and automotive air-conditioning system fills end and is communicated with; It is characterized in that, also be provided with first magnetic valve at the described first pipeline place, described first magnetic valve is used for the break-make of control first pipeline, is provided with second magnetic valve at the described second pipeline place, and described second magnetic valve is used for the break-make of control second pipeline;
Described full automatic gas reclaims filling device and also comprises first pressure sensor and controller, when full automatic gas recovery filling device links to each other with automotive air-conditioning system, described first pressure sensor is connected with automotive air-conditioning system, for detection of the automotive air-conditioning system pressure inside, described controller is electrically connected with first pressure sensor, first magnetic valve, compressor and second magnetic valve respectively.
2. full automatic gas according to claim 1 reclaims filling device, it is characterized in that, also comprise first temperature sensor, when full automatic gas recovery filling device links to each other with automotive air-conditioning system, described first temperature sensor is connected with automotive air-conditioning system, is used for measured automobiles air-conditioning system temperature inside.
3. full automatic gas according to claim 1 reclaims filling device, it is characterized in that, on described first pipeline, between first magnetic valve and described first oil eliminator, also be provided with the 3rd magnetic valve and second pressure sensor, described the 3rd magnetic valve is used for the flow that restriction enters the cold-producing medium of first oil eliminator, described second pressure sensor is for detection of the pressure of the cold-producing medium that enters first oil eliminator, and described controller is according to the break-make of signal controlling the 3rd magnetic valve of second sensor.
4. full automatic gas according to claim 1 reclaims filling device, it is characterized in that, between described first oil eliminator and described compressor, is provided with device for drying and filtering, is used for the dry cold-producing medium that transfers out from first oil eliminator.
5. full automatic gas according to claim 1 reclaims filling device, it is characterized in that, is provided with heat exchanger between described second oil eliminator and work jar, is used for making the gaseous refrigerant that transfers out from second oil eliminator become liquid state.
6. full automatic gas according to claim 1 reclaims filling device, it is characterized in that, described work jar has a gaseous state end, described gaseous state end and one the 4th magnetic valve and the 3rd pressure sensor and second temperature sensor link to each other, described the 4th magnetic valve is used for the break-make of control work jar gaseous state end, and controller is according to the unlatching of signal controlling the 4th magnetic valve of the 3rd pressure sensor and second temperature sensor and close.
7. full automatic gas according to claim 1 reclaims filling device, it is characterized in that, also comprise the 3rd pipeline and the 4th pipeline, described the 3rd pipeline one end fills end with the low pressure of automotive air-conditioning system and is communicated with, the other end is communicated with the work jar, described the 3rd pipeline is provided with the 5th magnetic valve, described the 5th magnetic valve is used for the break-make of control the 3rd pipeline, described the 4th pipeline one end fills end with the high pressure of automotive air-conditioning system and is communicated with, the other end is communicated with first oil eliminator, described the 4th pipeline is provided with the 6th magnetic valve, and described the 6th magnetic valve is used for the break-make of control the 4th pipeline.
8. full automatic gas according to claim 1 reclaims filling device, it is characterized in that, further comprise one the 7th magnetic valve, described the 7th magnetic valve one end links to each other with first oil eliminator, the other end links to each other with the work jar, forms cold-producing medium reclaims filling device inside at full automatic gas self-circulation channel.
9. full automatic gas according to claim 1 reclaims filling device, it is characterized in that, is provided with a weighing device at described work pot bottom, is used for the weight of real-time monitoring jar cold-producing medium, and monitor signal is passed to controller.
10. full automatic gas according to claim 1 reclaims filling device, it is characterized in that, further comprise an oiling device, described oiling device fills end by an oiling magnetic valve with the high pressure of described automotive air-conditioning system and is communicated with, be used for lubricating oil is injected automotive air-conditioning system inside, described oiling device bottom is provided with a weighing device, is used for the weight of the lubricating oil of monitoring oiling device inside in real time, and monitor signal is passed to controller.
11. full automatic gas according to claim 1 reclaims filling device, it is characterized in that, further comprise a fluorescer filling device, described fluorescer filling device fills magnetic valve by a fluorescer and is communicated with the filled end of the high pressure of described automotive air-conditioning system, when automotive air-conditioning system need overhaul, fluorescer is injected automotive air-conditioning system inside, described fluorescer filling device bottom is provided with a weighing device, be used for the weight of the fluorescer of monitoring fluorescer filling device inside in real time, and monitor signal is passed to controller.
12. full automatic gas according to claim 1 reclaims filling device, it is characterized in that, further comprise a vacuum extractor, described vacuum extractor vacuumizes magnetic valve by one and is communicated with the filled end of the low pressure of described automotive air-conditioning system and the filled end of high pressure, is used for automotive air-conditioning system is carried out vacuum pumping.
13. full automatic gas according to claim 1 reclaims filling device, it is characterized in that, an external refrigerant memory is communicated with described first oil eliminator by a magnetic valve, is used for that external refrigerant is replenished full automatic gas and reclaims filling device.
14. full automatic gas according to claim 1 reclaims filling device, it is characterized in that, described first oil eliminator is communicated with a discharge equipment by an oil drain solenoid valve, be used for the isolated lubricating oil of first oil eliminator is discharged into discharge equipment, described discharge equipment bottom is provided with a weighing device, be used for the weight of the lubricating oil of monitoring discharge equipment inside in real time, and monitor signal is passed to controller.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320072756 CN203190729U (en) | 2013-02-08 | 2013-02-08 | Full-automatic gas recovery charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320072756 CN203190729U (en) | 2013-02-08 | 2013-02-08 | Full-automatic gas recovery charging device |
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| CN203190729U true CN203190729U (en) | 2013-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320072756 Expired - Fee Related CN203190729U (en) | 2013-02-08 | 2013-02-08 | Full-automatic gas recovery charging device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115458A (en) * | 2013-02-08 | 2013-05-22 | 甘小琴 | Full automatic gas recovering and charging device and method |
| CN105605838A (en) * | 2016-01-07 | 2016-05-25 | 北京航天发射技术研究所 | Carrier rocket liquid oxygen filling system |
| CN106871509A (en) * | 2017-04-11 | 2017-06-20 | 南方英特空调有限公司 | A kind of air conditioning for automobiles adds fluorine method |
| CN109737652A (en) * | 2019-02-02 | 2019-05-10 | 瑞斯达汽车技术服务(广州)有限公司 | Air-conditioning dialysis repair system and method |
| CN110849046A (en) * | 2019-12-12 | 2020-02-28 | 葛洲坝节能科技有限公司 | Refrigerating system and liquid storage assembly thereof |
-
2013
- 2013-02-08 CN CN 201320072756 patent/CN203190729U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115458A (en) * | 2013-02-08 | 2013-05-22 | 甘小琴 | Full automatic gas recovering and charging device and method |
| CN103115458B (en) * | 2013-02-08 | 2015-09-09 | 甘小琴 | Full automatic gas reclaims filling device and method |
| CN105605838A (en) * | 2016-01-07 | 2016-05-25 | 北京航天发射技术研究所 | Carrier rocket liquid oxygen filling system |
| CN106871509A (en) * | 2017-04-11 | 2017-06-20 | 南方英特空调有限公司 | A kind of air conditioning for automobiles adds fluorine method |
| CN109737652A (en) * | 2019-02-02 | 2019-05-10 | 瑞斯达汽车技术服务(广州)有限公司 | Air-conditioning dialysis repair system and method |
| CN110849046A (en) * | 2019-12-12 | 2020-02-28 | 葛洲坝节能科技有限公司 | Refrigerating system and liquid storage assembly thereof |
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