CN202993694U - Air conditioning system - Google Patents
Air conditioning system Download PDFInfo
- Publication number
- CN202993694U CN202993694U CN201220711032.9U CN201220711032U CN202993694U CN 202993694 U CN202993694 U CN 202993694U CN 201220711032 U CN201220711032 U CN 201220711032U CN 202993694 U CN202993694 U CN 202993694U
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- CN
- China
- Prior art keywords
- liquid
- compressor
- conditioning system
- air
- temperature sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 47
- 238000001816 cooling Methods 0.000 abstract description 8
- 239000007921 spray Substances 0.000 abstract description 4
- 239000003507 refrigerant Substances 0.000 abstract description 3
- 238000005461 lubrication Methods 0.000 abstract description 2
- 238000005057 refrigeration Methods 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract 4
- 239000002826 coolant Substances 0.000 description 5
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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Abstract
The utility model discloses an air conditioning system, which comprises a compressor, a condenser, a first throttling component and an evaporator, wherein the compressor, the condenser, the first throttling component and the evaporator are connected to form a refrigeration loop; one end of the liquid spraying device is connected with the inlet end of the gas-liquid separator, and the other end of the liquid spraying device is communicated with the inlet end of the first throttling component. The liquid spraying device of the air conditioning system sprays the liquid refrigerant to the inlet of the gas-liquid separator of the air conditioning system, so that the liquid impact of the compressor can be avoided when the liquid spraying amount is too much; the exhaust temperature of the compressor can be controlled within a proper range, and the normal lubrication of the compressor is ensured; the spray liquid cooling method is simple, low in cost and unlimited in use occasions, and the safe operation of the air conditioning system is guaranteed.
Description
Technical field
The utility model relates to refrigerating field, particularly relates to a kind of air-conditioning system with Liquid injection cooling function.
Background technology
Refrigeration unit for operation excessive discharge temperature problem under some operating mode, mainly adopts the mode of the front Liquid injection cooling of head fan coolling or compressor at present.Front a kind of mode is to utilize fan directly to blow over against the compressor air-discharging cylinder, turn round with compressor operation, compressor stops and stopping, and this mode relatively consumes energy, and when compressor is in relatively airtight space (box-type condensing) cooling effect extreme difference, delivery temperature is difficult to lower.Rear a kind of mode is to adopt the spray system that directly is sprayed onto in the compressor air suction chamber, because the hydrojet of spray system is in the gas-liquid separator rear end, so when under some condition, spouting liquid is more, easily cause the compressor liquid hammer, damages compressor inner structure.
The utility model content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of air-conditioning system simple in structure, reasonable in design, the compressor liquid hammer that it has avoided spouting liquid too much to cause ensures unit safety operation, and the utility model realizes that the technical scheme that above-mentioned purpose adopts is:
A kind of air-conditioning system, comprise compressor, condenser, first throttle parts and evaporimeter, described compressor, condenser, first throttle parts and evaporimeter are connected to form refrigerating circuit, also comprise gas-liquid separator and liquid-jet device, described gas-liquid separator is series between described compressor and described evaporimeter;
One end of described liquid-jet device is communicated with the arrival end of described gas-liquid separator, and the other end is communicated with the arrival end of described first throttle parts.
More preferably, described liquid-jet device comprises the second section stream unit, and described second section stream unit is series in described liquid-jet device.
Further, described second section stream unit is electric expansion valve.
Further, described second section stream unit is capillary.
More preferably, described liquid-jet device also comprises magnetic valve, and described magnetic valve is connected between the arrival end of described second section stream unit and described first throttle parts; Perhaps be connected between the arrival end of described second section stream unit and described gas-liquid separator.
More preferably, described air-conditioning system also comprises temperature sensor and controller, and described temperature sensor is arranged at the blast pipe place of described compressor, is used for measuring the delivery temperature of described compressor;
Described temperature sensor and described magnetic valve all are electrically connected to described controller; Described controller is used for controlling according to the delivery temperature that described temperature sensor records the switching of described magnetic valve.
More preferably, described air-conditioning system also comprises temperature sensor and controller, and described temperature sensor is arranged at the blast pipe place of described compressor, is used for measuring the delivery temperature of described compressor;
Described temperature sensor and described electric expansion valve all are electrically connected to described controller; Described controller is used for controlling according to the delivery temperature that described temperature sensor records the aperture of described electric expansion valve.
More preferably, described liquid-jet device also comprises filter, and described filter is connected on the arrival end of described second section stream unit.
The beneficial effects of the utility model are:
Air-conditioning system of the present utility model is sprayed onto liquid coolant by its liquid-jet device the gas-liquid separator entrance of air-conditioning system, and in the time of can avoiding spouting liquid too much, liquid hammer appears in compressor; The delivery temperature of compressor can be controlled in a suitable scope, guarantee the normal lubricated of compressor; This kind Liquid injection cooling mode is simple, cost is low, and use occasion is unrestricted, has ensured the air-conditioning system safe operation.
Description of drawings
Fig. 1 is the schematic diagram of air-conditioning system one embodiment of the present utility model;
Fig. 2 is the schematic diagram of another embodiment of air-conditioning system of the present utility model.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, air-conditioning system of the present utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
See figures.1.and.2, air-conditioning system one embodiment of the present utility model comprises compressor 1, condenser 4, first throttle parts 9 and evaporimeter 10, compressor 1, condenser 4, first throttle parts 9 and evaporimeter 10 are connected to form refrigerating circuit, and gas-liquid separator 12 is series in pipeline between compressor 1 and evaporimeter 10; In figure, dotted portion is liquid-jet device 13, and an end of liquid-jet device 13 is communicated with the arrival end of gas-liquid separator 12, and the other end is communicated with the arrival end of first throttle parts 9, and liquid-jet device 13 is used for to the interior eruption liquid coolant of gas-liquid separator 12.Also be provided with reservoir 5, device for drying and filtering 6, liquid-sighting glass 7, stop valve 8, suction filter 11 and a plurality of angle valve 2 in refrigerating circuit, a plurality of angle valves 2 are separately positioned on the exhaust pipeline section of compressor 1, the return-air pipeline section of compressor 1, the port of export of reservoir 5 and the arrival end of suction filter 11.
More preferably, as a kind of embodiment, liquid-jet device 13 comprises the second section stream unit, and described second section stream unit is series in liquid-jet device 13; Second section stream unit one end is communicated with the arrival end of gas-liquid separator 12, and the other end is communicated with the arrival end of first throttle parts 9; The second section stream unit is capillary 17, makes liquid coolant through after throttling, is sprayed onto in gas-liquid separator 12.
More preferably, as a kind of embodiment, as shown in Figure 2, liquid-jet device 13 also comprises magnetic valve 15, and capillary 17 is connected in pipeline with magnetic valve 15; Magnetic valve 15 is connected between the arrival end of capillary 17 and first throttle parts 9; Perhaps be connected between the arrival end of capillary 17 and gas-liquid separator 12.
Preferably, magnetic valve 15 is normal-closed electromagnetic valve; Capillary 17 herein also can be replaced by electric expansion valve 14.Adopt normal-closed electromagnetic valve, only have liquid-jet device 13 only just to switch on when the needs hydrojet, saves energy.
More preferably, as another kind of embodiment, liquid-jet device 13 also comprises filter 16, filter 16 is connected on the arrival end of described second section fluid element, filter 16 is used for the impurity of filter pipeline, can prevent that described second section stream unit from occuring dirty stifled, further improve the reliability of air-conditioning system.
More preferably, in above embodiment, air-conditioning system also comprises temperature sensor (not shown) and controller (not shown), and described temperature sensor is arranged at the blast pipe place of compressor 1, is used for measuring the delivery temperature of compressor 1; Described temperature sensor is electrically connected to described controller; Described electric expansion valve is or/and described magnetic valve also is electrically connected to described controller, and the delivery temperature that described controller records according to described temperature sensor is controlled the aperture of electric expansion valve or/and the switching of magnetic valve.Described temperature sensor feeds back to described controller with the delivery temperature of compressor 1, when delivery temperature higher than a certain setting value T
1The time, electric expansion valve or/and magnetic valve switch on power, electric expansion valve or/and magnetic valve open, the highly pressurised liquid refrigerant by electric expansion valve or/and magnetic valve flow in gas-liquid separator 12, due to the refrigerant evaporation heat absorption, the delivery temperature of compressor 1 will reduce, until delivery temperature is reduced to another setting value T
2The time, electric expansion valve is or/and closed electromagnetic valve, and liquid-jet device 13 hydrojet processes finish, when delivery temperature rises to setting value T again
1The time, liquid-jet device 13 enters the next hydrojet cycle, and so circulation is controlled at the delivery temperature of compressor 1 in safe range between T1 and T2, has avoided the overheated carbonization of lubricating oil, has ensured the safe operation of compressor 1.
In addition, in liquid-jet device 13, when the second section stream unit was capillary 17, the power of the caliber of the capillary that is equipped with 17 and length and compressor 1 was complementary, and made compressor 1 air entry have the safe degree of superheat of 5K ± 1K during hydrojet.because the applying working condition of piston type condensation unit is a scope that span is larger, rather than some operating modes, it is-23～0 ℃ as the requirement according to GB centering temperature unit evaporating temperature scope, ambient temperature range-7～43 ℃, the liquid-jet device 13 of air-conditioning system required hydrojet speed under its maximum hydrojet operating mode and minimum hydrojet operating mode differs larger, and the liquid-jet device 13 that adopts same specification capillary 17 may make the hydrojet speed under its minimum hydrojet operating mode bigger than normal, the Liquid injection cooling mode of the air-conditioning system of the present embodiment is liquid coolant to be sprayed onto the arrival end of gas-liquid separator 12, gas-liquid separator 12 plays and separates and the temporary transient effect that stores too much hydrojet coolant quantity, can avoid so the excessive and infringement that piston compressor brought liquid hammer of spouting liquid.
when air-conditioning system is moved under the lower temperature operating mode, compressor exhaust temperature is very high, this may cause the oil lubrication effect to lose efficacy, the air-conditioning system of the present embodiment is cooling to compressor by liquid-jet device, the feed flow pipeline section of employing after the device for drying and filtering 6 got liquid, through magnetic valve, after filter filtration and capillary or electric expansion valve throttling, be sprayed onto the entrance of gas-liquid separator 12, reduce suction temperature by the hydrojet evaporation endothermic and reach the purpose that reduces compressor exhaust temperature, this kind type of cooling can be used for the air-conditioning system of any version (open type or box), head adopts the fan coolling mode relatively, needn't consider that housing is on the impact of heat radiation.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.Should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (8)
1. an air-conditioning system, comprise compressor, condenser, first throttle parts and evaporimeter, and described compressor, condenser, first throttle parts and evaporimeter are connected to form refrigerating circuit, it is characterized in that:
Also comprise gas-liquid separator and liquid-jet device, described gas-liquid separator is series between described compressor and described evaporimeter;
One end of described liquid-jet device is communicated with the arrival end of described gas-liquid separator, and the other end is communicated with the arrival end of described first throttle parts.
2. air-conditioning system according to claim 1 is characterized in that:
Described liquid-jet device comprises the second section stream unit, and described second section stream unit is series in described liquid-jet device.
3. air-conditioning system according to claim 2 is characterized in that:
Described second section stream unit is electric expansion valve.
4. air-conditioning system according to claim 2 is characterized in that:
Described second section stream unit is capillary.
5. air-conditioning system according to claim 2 is characterized in that:
Described liquid-jet device also comprises magnetic valve, and described magnetic valve is connected between the arrival end of described second section stream unit and described first throttle parts; Perhaps be connected between the arrival end of described second section stream unit and described gas-liquid separator.
6. air-conditioning system according to claim 5 is characterized in that:
Also comprise temperature sensor and controller, described temperature sensor is arranged at the blast pipe place of described compressor, is used for measuring the delivery temperature of described compressor;
Described temperature sensor and described magnetic valve all are electrically connected to described controller; Described controller is used for controlling according to the delivery temperature that described temperature sensor records the switching of described magnetic valve.
7. air-conditioning system according to claim 3 is characterized in that:
Also comprise temperature sensor and controller, described temperature sensor is arranged at the blast pipe place of described compressor, is used for measuring the delivery temperature of described compressor;
Described temperature sensor and described electric expansion valve all are electrically connected to described controller; Described controller is used for controlling according to the delivery temperature that described temperature sensor records the aperture of described electric expansion valve.
8. the described air-conditioning system of according to claim 2 to 5 any one is characterized in that:
Described liquid-jet device also comprises filter, and described filter is connected on the arrival end of described second section stream unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220711032.9U CN202993694U (en) | 2012-12-20 | 2012-12-20 | Air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220711032.9U CN202993694U (en) | 2012-12-20 | 2012-12-20 | Air conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202993694U true CN202993694U (en) | 2013-06-12 |
Family
ID=48564868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220711032.9U Expired - Lifetime CN202993694U (en) | 2012-12-20 | 2012-12-20 | Air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202993694U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106403407A (en) * | 2016-09-23 | 2017-02-15 | 广州冰泉制冷设备有限责任公司 | Defrosting control system |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
| CN112964022A (en) * | 2021-04-14 | 2021-06-15 | 合肥亦威科技有限公司 | Precise temperature control system suitable for factory cooling water |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
-
2012
- 2012-12-20 CN CN201220711032.9U patent/CN202993694U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106403407A (en) * | 2016-09-23 | 2017-02-15 | 广州冰泉制冷设备有限责任公司 | Defrosting control system |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US11919363B2 (en) | 2017-08-25 | 2024-03-05 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
| CN112964022A (en) * | 2021-04-14 | 2021-06-15 | 合肥亦威科技有限公司 | Precise temperature control system suitable for factory cooling water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |