CN103982943A - Multi-split air conditioning system - Google Patents
Multi-split air conditioning system Download PDFInfo
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- CN103982943A CN103982943A CN201410183113.XA CN201410183113A CN103982943A CN 103982943 A CN103982943 A CN 103982943A CN 201410183113 A CN201410183113 A CN 201410183113A CN 103982943 A CN103982943 A CN 103982943A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 50
- 238000004781 supercooling Methods 0.000 claims abstract description 89
- 239000007788 liquid Substances 0.000 claims description 62
- 230000008676 import Effects 0.000 claims description 25
- 238000010438 heat treatment Methods 0.000 claims description 7
- 230000005494 condensation Effects 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract 1
- 239000003507 refrigerant Substances 0.000 description 75
- 238000001816 cooling Methods 0.000 description 21
- 238000005057 refrigeration Methods 0.000 description 11
- 239000002826 coolant Substances 0.000 description 7
- 235000019628 coolness Nutrition 0.000 description 7
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000003670 easy-to-clean Effects 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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Abstract
The invention provides a multi-split air conditioning system. The multi-split air conditioning system comprises an indoor unit, multiple outdoor units and super-cooling devices, wherein the multiple outdoor units are communicated with the indoor unit through pipelines after being connected in parallel, the super-cooling devices are detachably arranged on the pipelines, and the super-cooling devices are communicated with the indoor unit and the multiple outdoor units which are connected in parallel. The multi-split air conditioning system provided by the invention is provided with the multiple outdoor units which are connected in parallel, the super-cooling devices are detachably arranged on the pipelines, whether the super-cooling devices need to be arranged or not can be selected by a user according to self needs, and the super-cooling devices can be arranged in any positions on the pipelines; compared with a mode of arranging the super-cooling devices in the outdoor units in the prior art, the super-cooling devices are detachably arranged on the pipelines, on one hand, the using amount of the super-cooling devices is effectively reduced, the problem of resource waste is avoided, and thus the production cost of the multi-split air conditioning system is effectively reduced; on the other hand, the size of the outdoor units is effectively reduced, thus the conveying amount of the outdoor units is increased, and the conveying cost is reduced.
Description
Technical field
The present invention relates to household appliance technical field, more specifically, relate to a kind of multi-online air-conditioning system.
Background technology
Multi-online air-conditioning system has higher energy effciency ratio, and cold (heat) amount is directly carried by refrigerant, reduces heat exchange link, is applicable to various varying duties place.
For multi-online air-conditioning system, in order to prevent occurring shwoot before refrigerant from entering evaporimeter, conventionally can in off-premises station, increase a supercooling apparatus, increase degree of supercooling, while making refrigerant enter indoor set throttle part in supercooled state.
In vapour compression refrigeration system, be subject to the impact of coolant temperature, condenser is cold limited in one's ability to the mistake of refrigerant, general under-cooling degree is all less, in order to improve specific refrigerating effect and coefficient of refrigerating performance, prior art adopts the outlet at condenser that a subcooler is set, between condensator outlet and subcooler, be connected a liquid phase shunt valve, and an expansion valve is set in liquid phase shunt valve, between subcooler and compressor suction duct, be connected a gas phase shunt valve, like this, the refrigerant that self cooling condenser outlet is flowed out is divided into main refrigerant flow road and bypass refrigerant flow two parts, bypass refrigerant enters subcooler after expansion valve throttling cooling, in subcooler, evaporation absorbs main refrigerant heat, then by gas phase shunt valve, get back to compressor suction duct, thereby the heat release in subcooler of main refrigerant is cooled and obtains desirable degree of supercooling.
Current most of air-conditioning system is all used above-mentioned way, to improve specific refrigerating effect and coefficient of refrigerating performance, still, when multi-online air-conditioning system has many off-premises stations, every off-premises station all needs independently to arrange a subcooler, and expansion valve and corresponding pipeline, increased cost.
Summary of the invention
The present invention is intended at least solve one of technical problem existing in prior art.
For this reason, the object of the invention is to, a kind of multi-online air-conditioning system with a plurality of off-premises stations is provided, the supercooling apparatus of this multi-online air-conditioning system is arranged on the pipeline that is communicated with a plurality of off-premises stations and indoor set, effectively reduced the use amount of supercooling apparatus, thereby greatly reduce the production cost of multi-online air-conditioning system, reduced the overall volume of off-premises station simultaneously.
For achieving the above object, the invention provides a kind of multi-online air-conditioning system, comprising: indoor set; A plurality of off-premises stations, are connected with described indoor set by pipeline after a plurality of described off-premises station parallel connections; And supercooling apparatus, described supercooling apparatus is removably mounted on described pipeline, and described supercooling apparatus is connected with the described off-premises station of described indoor set and a plurality of parallel connections.
Multi-online air-conditioning system provided by the invention has the off-premises station of a plurality of parallel connections, and on the connection off-premises station of a plurality of parallel connections and the pipeline of indoor set, supercooling apparatus is removably installed, because supercooling apparatus is detachably arranged on pipeline, user can select whether supercooling apparatus is installed according to self-demand, and supercooling apparatus can be arranged on to the optional position of pipeline; In addition, compare with the mode that prior art is arranged on supercooling apparatus in off-premises station, supercooling apparatus is removably mounted on and is communicated with on the off-premises station of a plurality of parallel connections and the pipeline of indoor set, on the one hand, has effectively reduced the use amount of supercooling apparatus, avoided wasting of resources problem, thereby effectively reduced the production cost of multi-online air-conditioning system, on the other hand, effectively reduced the volume of off-premises station, thereby the freight volume that has increased off-premises station, has reduced cost of transportation.
In addition, the multi-online air-conditioning system providing according to the above embodiment of the present invention also has following additional technical feature:
According to one embodiment of present invention, described supercooling apparatus is removably mounted on described pipeline near a side of described indoor set.
Development along with multi-connected machine technology, piping length is more and more longer, in the process of refrigerant from off-premises station to indoor set, may some evaporate, thereby during the throttle part of the part refrigerant that makes to flash to gaseous state by indoor set, gaseous coolant washes away throttle part can cause larger noise; Supercooling apparatus is arranged on to the place near indoor set, can reduce the loss of refrigeration capacity that long pipe arrangement brings, simultaneously, in the time of can guaranteeing that refrigerant enters indoor set throttle part in excessively cold liquid condition, avoid gaseous coolant to wash away the noise that indoor set throttle part produces, thereby effectively improve the quality of product.
According to one embodiment of present invention, described pipeline comprises the first pipeline and second pipe, described in each, off-premises station includes compressor, cross valve, outdoor heat exchanger, the first liquid side stop valve, gas-liquid separator and the first gas side stop valve, the exhaust outlet of described compressor is connected with the exhaust port of described cross valve, described outdoor heat exchanger is connected with the condensation port of described cross valve, described the first liquid side stop valve is connected by choke valve with described outdoor heat exchanger, the import of described gas-liquid separator is connected with the air intake duct port of described cross valve, the outlet of described gas-liquid separator is connected with the gas returning port of described compressor, described the first gas side stop valve is connected with the evaporimeter port of described cross valve, after a plurality of described the first liquid side stop valve parallel connections, by described the first pipeline, be connected with described indoor set, after a plurality of described the first gas side stop valve parallel connections, by described second pipe, be connected with described indoor set, described supercooling apparatus is removably mounted on described the first pipeline, and is connected with described the first gas side stop valve after a plurality of parallel connections.
Supercooling apparatus is removably mounted on the first pipeline, the the first liquid side stop valve that is a plurality of off-premises stations is all connected with indoor set by supercooling apparatus, that is to say, when multi-online air-conditioning system freezes, from the refrigerant of off-premises station through supercooling apparatus again the low temperature refrigerant after heat exchange flow to indoor set, like this, while having guaranteed that refrigerant enters indoor set throttle part in excessively cold liquid condition, avoided gaseous coolant to wash away the noise that indoor set throttle part produces, thereby effectively improve the quality of product, effectively improved the refrigeration of multi-online air-conditioning system simultaneously, and supercooling apparatus is connected with the first gas side stop valve of a plurality of off-premises stations, make the high temperature refrigerant after heat exchange in supercooling apparatus again be back to a plurality of off-premises stations, thereby effectively improved the degree of superheat of multi-online air-conditioning system, the band hydraulic compression that has prevented compressor, has improved system reliability of operation.
According to one embodiment of present invention, described supercooling apparatus comprises: subcooler, described subcooler has first passage and second channel, and described first passage is connected with described the first pipeline, and the outlet of described second channel is connected with described the first gas side stop valve after a plurality of parallel connections; And flow controller, the import of described flow controller is connected with described first passage, and the outlet of described flow controller is connected with the import of described second channel.
The first passage of subcooler is connected with the first pipeline, the import of second channel is connected with the outlet of flow controller, the import of flow controller is connected with first passage, the liquid refrigerants of exporting from the off-premises station of a plurality of parallel connections is through the first pipeline, a part flows into the first passage of subcooler, another part flows to the flow controller being connected with the first pipeline, after flow controller throttling cooling, flow into second channel, now, refrigerant in second channel is for being lowered the temperature into the liquid refrigerants of low-temp low-pressure by flow controller throttling, lower than the refrigerant temperature in first passage, therefore, refrigerant in second channel and the refrigerant in first passage carry out heat exchange, refrigerant in first passage is emitted heat and is flowed to indoor set, effectively solve refrigerant and before entering evaporimeter, occurred flash phenomenon, thereby reduced the noise of indoor set, simultaneously, refrigerant in second channel absorbs after heat, flow to the first gas side stop valve of the off-premises station of a plurality of parallel connections, effectively improved the degree of superheat of multi-online air-conditioning system, prevented the band hydraulic compression of compressor, thereby effectively improved system reliability of operation.
According to one embodiment of present invention, the import of described flow controller and the import of described first passage are connected.
The refrigerant flowing out from a plurality of off-premises stations, through the first pipeline flow-direction supercooling apparatus, now, these refrigerants are divided into two parts, and a part flows into subcooler, through subcooler, flow to indoor set, another part flows to flow controller, flows back to subcooler, and carry out heat exchange with the refrigerant that flows to indoor set after flow controller throttling cooling, like this, the refrigerant that makes to flow to indoor set is cooling and obtain desirable degree of supercooling by heat release in subcooler.
According to one embodiment of present invention, the import of described flow controller and the outlet of described first passage are connected.
The refrigerant flowing out from a plurality of off-premises stations, through the first pipeline, flow into the subcooler of supercooling apparatus, after flowing out, subcooler is divided into two parts, a part is through the first pipeline flow-direction indoor set, another part flows to flow controller, after flow controller throttling cooling, flow back to subcooler, carry out heat exchange with the refrigerant that flows to indoor set, like this, after certain hour, after the refrigerant that flows out from a plurality of off-premises stations is cold by heat release in subcooler, a part flows into flow controller and again after throttling cooling, flows back to subcooler, thereby the refrigerant that makes to flow to indoor set is cooling and obtain desirable degree of supercooling by secondary heat release in subcooler.
According to one embodiment of present invention, described subcooler is plate type heat exchanger or double pipe heat exchanger.
The features such as plate type heat exchanger has that heat exchange efficiency is high, heat loss is little, advantages of compact and light structure, floor space are little, easy to clean is installed, be widely used, long service life, can effectively guarantee heat exchange efficiency and the service life of heat-exchanger rig, also can effectively reduce the volume of heat-exchanger rig simultaneously; Double pipe heat exchanger is simple in structure, and heat conductive efficiency is high, can effectively guarantee the heat exchange efficiency of heat-exchanger rig.
According to one embodiment of present invention, described flow controller is capillary or electric expansion valve or heating power expansion valve.
Capillary or electric expansion valve or heating power expansion valve all have good throttling action, and wherein, the aperture of electric expansion valve and heating power expansion valve can degree of supercooling as required be controlled.
According to one embodiment of present invention, described supercooling apparatus also comprises: the second liquid side outlet stop valve, the second liquid side entrance stop valve, the second gas side outlet stop valve and the second gas side entrance stop valve, the import of described first passage and outlet are connected with described the first pipeline by described the second liquid side entrance stop valve and described the second liquid side outlet stop valve respectively, the outlet of described second channel is connected with described the first gas side stop valve after a plurality of parallel connections by described the second gas side outlet stop valve and described the second gas side entrance stop valve, and described the second gas side outlet stop valve and described the second gas side entrance stop valve are positioned at the both sides of the outlet of described second channel.
The second liquid side outlet stop valve, the second liquid side entrance stop valve, the second gas side outlet stop valve and the second side entrance stop valve are separately positioned on the first pipeline and second pipe, make dismounting and the installation of supercooling apparatus become simple and convenient, user can install or dismantle supercooling apparatus as required at any time.
According to one embodiment of present invention, described indoor set comprises: a plurality of indoor heat exchangers, described in each, indoor heat exchanger is all connected with a throttle part, after a plurality of described throttle part parallel connections, by described the first pipeline, be connected with described the first liquid side stop valve after a plurality of parallel connections, after a plurality of described indoor heat exchanger parallel connections, by described second pipe, be connected with described the first gas side stop valve after a plurality of parallel connections.
Indoor set has a plurality of indoor heat exchangers, each indoor heat exchanger all connects a throttle part, and by the first pipeline, be connected with the first liquid side stop valve after a plurality of parallel connections after a plurality of throttle part parallel connections, the refrigerant that flows to indoor set from supercooling apparatus first passes through throttle part, by throttle part, again after throttling cooling, flowed to indoor heat exchanger, like this, effectively promoted the refrigeration of multi-online air-conditioning system.
Additional aspect of the present invention and advantage will provide in description part below, and part will become obviously from the following description, or recognize by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination obviously and is easily understood becoming the description of embodiment, wherein:
Fig. 1 is the first structural representation according to the multi-online air-conditioning system described in one embodiment of the invention;
Fig. 2 is the second structural representation according to the multi-online air-conditioning system described in one embodiment of the invention.
Wherein, in Fig. 1, the corresponding relation between Reference numeral and component names is:
10 indoor sets, 11 indoor heat exchangers, 12 throttle parts, 20 off-premises stations, 21 compressors, 22 cross valves, 23 outdoor heat exchangers, 24 first liquid side stop valves, 25 choke valves, 26 gas-liquid separators, 27 first gas side stop valves, 30 supercooling apparatus, 31 subcoolers, 32 flow controllers, 33 second liquid side entrance stop valves, 34 second liquid side outlet stop valves, 35 second gas side entrance stop valves, 36 second gas side outlet stop valves, 40 pipelines, 41 first pipelines, 42 second pipes, D, C, E, S is respectively the exhaust port of cross valve, condensation port, evaporimeter port and air intake duct port.
The specific embodiment
In order more clearly to understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, in the situation that not conflicting, the application's embodiment and the feature in embodiment can combine mutually.
A lot of details have been set forth in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from mode described here and implement, and therefore, protection scope of the present invention is not subject to the restriction of following public specific embodiment.
With reference to the accompanying drawings 1 and accompanying drawing 2 describe multi-online air-conditioning system be provided according to some embodiments of the invention.
As depicted in figs. 1 and 2, the multi-online air-conditioning system that one embodiment of the invention provides, comprising: indoor set 10, a plurality of off-premises station 20 and supercooling apparatus 30.
Wherein, after a plurality of off-premises station 20 parallel connections, by pipeline 40, be connected with indoor set 10; Supercooling apparatus 30 is removably mounted on pipeline 40, and supercooling apparatus 30 is connected with the off-premises station 20 of indoor set 10 and a plurality of parallel connections.
The multi-online air-conditioning system that the present embodiment provides has the off-premises station 20 of a plurality of parallel connections, and on the off-premises station 20 of a plurality of parallel connections of connection and the pipeline 40 of indoor set 10, supercooling apparatus 30 is removably installed, because supercooling apparatus 30 is detachably arranged on pipeline 40, user can select whether supercooling apparatus 30 is installed according to self-demand, and supercooling apparatus 30 can be arranged on to the optional position of pipeline 40; In addition, compare with the mode that prior art is arranged on supercooling apparatus 30 in off-premises station 20, supercooling apparatus 30 is removably mounted on and is communicated with on the off-premises station 20 of a plurality of parallel connections and the pipeline 40 of indoor set 10, on the one hand, has effectively reduced the use amount of supercooling apparatus 30, avoided wasting of resources problem, thereby effectively reduced the production cost of multi-online air-conditioning system, on the other hand, effectively reduced the volume of off-premises station 20, thereby the freight volume that has increased off-premises station 20, has reduced cost of transportation.
Preferably, supercooling apparatus 30 is removably mounted on pipeline 40 near a side of indoor set 10.
Development along with multi-connected machine technology, piping length is more and more longer, the process of refrigerant from off-premises station 20 to indoor set 10, may some evaporate, thereby during the throttle part of the part refrigerant that makes to flash to gaseous state by indoor set 10, gaseous coolant washes away throttle part can cause larger noise; Supercooling apparatus 30 is arranged on to the place near indoor set 10, can reduce the loss of refrigeration capacity that long pipe arrangement brings, simultaneously, in the time of can guaranteeing that refrigerant enters indoor set 10 throttle part in excessively cold liquid condition, avoid gaseous coolant to wash away the noise that indoor set 10 throttle parts produce, thereby effectively improve the quality of product.
Particularly, pipeline 40 comprises the first pipeline 41 and second pipe 42, each off-premises station 20 includes compressor 21, cross valve 22, outdoor heat exchanger 23, the first liquid side stop valve 24, gas-liquid separator 26 and the first gas side stop valve 27, the exhaust outlet of compressor 21 is connected with the exhaust port D of cross valve 22, outdoor heat exchanger 23 is connected with the condensation port C of cross valve 22, the first liquid side stop valve 24 is connected by choke valve 25 with outdoor heat exchanger 23, the import of gas-liquid separator 26 is connected with the air intake duct port S of cross valve 22, the outlet of gas-liquid separator 26 is connected with the gas returning port of compressor 21, the first gas side stop valve 27 is connected with the evaporimeter port E of cross valve 22, after a plurality of the first liquid side stop valve 24 parallel connections, by the first pipeline 41, be connected with indoor set 10, after a plurality of the first gas side stop valve 27 parallel connections, by second pipe 42, be connected with indoor set 10, supercooling apparatus 30 is removably mounted on the first pipeline 41, and is connected with the first gas side stop valve 27 after a plurality of parallel connections.
Supercooling apparatus 30 is removably mounted on the first pipeline 41, the the first liquid side stop valve 24 that is a plurality of off-premises stations 20 is all connected with indoor set 10 by supercooling apparatus 30, that is to say, when multi-online air-conditioning system freezes, from the refrigerant of off-premises station 20 through supercooling apparatus 30 again the low temperature refrigerant after heat exchange flow to indoor set 10, like this, while having guaranteed that refrigerant enters indoor set 10 throttle part 12 in excessively cold liquid condition, avoided gaseous coolant to wash away the noise that indoor set 10 throttle parts 12 produce, thereby effectively improve the quality of product, effectively improved the refrigeration of multi-online air-conditioning system simultaneously, and supercooling apparatus 30 is connected with the first gas side stop valve 27 of a plurality of off-premises stations 20, make the high temperature refrigerant after the interior heat exchange of supercooling apparatus 30 again be back to a plurality of off-premises stations 20, thereby effectively improved the degree of superheat of multi-online air-conditioning system, the band hydraulic compression that has prevented compressor 21, has improved system reliability of operation.
Particularly, indoor set 10 comprises: a plurality of indoor heat exchangers 11, each indoor heat exchanger 11 is all connected with a throttle part 12, after a plurality of throttle part 12 parallel connections, by the first pipeline 41, be connected with the first liquid side stop valve 24 after a plurality of parallel connections, after a plurality of indoor heat exchanger 11 parallel connections, by second pipe 42, be connected with the first gas side stop valve 27 after a plurality of parallel connections.
Indoor set 10 has a plurality of indoor heat exchangers 11, each indoor heat exchanger 11 all connects a throttle part 12, and by the first pipeline 41, be connected with the first liquid side stop valve 24 after a plurality of parallel connections after a plurality of throttle part 12 parallel connections, the refrigerant that flows to indoor set 10 from supercooling apparatus 30 first passes through throttle part 12, by throttle part 12, again after throttling cooling, flowed to indoor heat exchanger 11, like this, effectively promoted the refrigeration of multi-online air-conditioning system.
Particularly, supercooling apparatus 30 comprises: subcooler 31, and subcooler 31 has first passage and second channel, and first passage is connected with the first pipeline 41, and the outlet of second channel is connected with the first gas side stop valve 27 after a plurality of parallel connections; With flow controller 32, the import of flow controller 32 is connected with first passage, and the outlet of flow controller 32 is connected with the import of second channel.
The first passage of subcooler 31 is connected with the first pipeline 41, the import of second channel is connected with the outlet of flow controller 32, the import of flow controller 32 is connected with first passage, the liquid refrigerants of exporting from the off-premises station 20 of a plurality of parallel connections is through the first pipeline 41, a part flows into the first passage of subcooler 31, another part flows to the flow controller 32 being connected with the first pipeline 41, after flow controller 32 throttling coolings, flow into second channel, now, refrigerant in second channel is for being lowered the temperature into the liquid refrigerants of low-temp low-pressure by flow controller 32 throttlings, lower than the refrigerant temperature in first passage, therefore, refrigerant in second channel and the refrigerant in first passage carry out heat exchange, refrigerant in first passage flows to indoor set 10 after emitting heat, effectively solve refrigerant and before entering evaporimeter, occurred flash phenomenon, thereby reduced the noise of indoor set 10, simultaneously, refrigerant in second channel absorbs after heat, flow to the first gas side stop valve 27 of the off-premises station 20 of a plurality of parallel connections, effectively improved the degree of superheat of multi-online air-conditioning system, prevented the band hydraulic compression of compressor 21, thereby effectively improved system reliability of operation.
Alternatively, subcooler 31 is plate type heat exchanger or double pipe heat exchanger; Flow controller 32 is capillary or electric expansion valve or heating power expansion valve.
The features such as plate type heat exchanger has that heat exchange efficiency is high, heat loss is little, advantages of compact and light structure, floor space are little, easy to clean is installed, be widely used, long service life, can effectively guarantee heat exchange efficiency and the service life of heat-exchanger rig, also can effectively reduce the volume of heat-exchanger rig simultaneously; Double pipe heat exchanger simple in structure, heat conductive efficiency is high, can effectively guarantee the heat exchange efficiency of heat-exchanger rig.In addition, the work accommodation scope of double pipe heat exchanger is large, heat transfer area increase and decrease is convenient, two side liquids all can improve flow velocity, make the both sides of heat-transfer area can have higher heat transfer coefficient, but the metal wastage of unit heat-transfer area are large, for increasing heat transfer area, improving heat-transfer effect, can add various forms of fins at outer wall of inner tube, and in inner tube, add knifing disturbance device, to adapt to the heat exchange of high viscosity fluid.
Capillary or electric expansion valve or heating power expansion valve all have good throttling action, and wherein, the aperture of electric expansion valve and heating power expansion valve can degree of supercooling as required be controlled.
Alternatively, supercooling apparatus 30 also comprises: the second liquid side outlet stop valve 34, the second liquid side entrance stop valve 33, the second gas side outlet stop valve 36 and the second gas side entrance stop valve 35, the import of first passage and outlet are connected with the first pipeline 41 by the second liquid side entrance stop valve 33 and the second liquid side outlet stop valve 34 respectively, the outlet of second channel is connected with the first gas side stop valve 27 after a plurality of parallel connections by the second gas side outlet stop valve 36 and the second gas side entrance stop valve 35, and the second gas side outlet stop valve 36 and the second gas side entrance stop valve 35 are positioned at the both sides of the outlet of second channel.
The second liquid side outlet stop valve 34, the second liquid side entrance stop valve 33, the second gas side outlet stop valve 36 and the second side entrance stop valve are separately positioned on the first pipeline 41 and second pipe 42, make dismounting and the installation of supercooling apparatus 30 become simple and convenient, user can install or dismantle supercooling apparatus 30 as required at any time.
According to a specific embodiment of the present invention, as shown in Figure 1, the import of flow controller 32 is connected with the import of first passage.
The refrigerant flowing out from a plurality of off-premises stations 20, through the first pipeline 41, flow to supercooling apparatus 30, now, these refrigerants are divided into two parts, and a part flows into subcooler 31, through subcooler 31, flow to indoor set 10, another part flows to flow controller 32, flows back to subcooler 31, and carry out heat exchange with the refrigerant that flows to indoor set 10 after flow controller 32 throttling coolings, like this, the refrigerant that makes to flow to indoor set 10 is interior cooling and obtain desirable degree of supercooling by heat release at subcooler 31.
As shown in Figure 1, the concrete refrigeration work process of the multi-online air-conditioning system providing of the present embodiment is as follows:
From the first liquid side stop valve 24 of the off-premises station 20 of a plurality of parallel connections out low temperature liquid refrigerant out converge to the first pipeline 41, by the second liquid side entrance stop valve 33, enter supercooling apparatus 30, first's refrigerant flows into subcooler 31, through subcooler 31, flow to indoor set 10, second portion refrigerant enters subcooler 31 after entering flow controller 32 throttling coolings, carry out after heat exchange with first refrigerant, from the second gas side entrance stop valve 35, flow to second pipe 42, finally by second pipe 42, flowed back to the first gas side stop valve 27 of off-premises station 20, first's refrigerant is cooled and obtains after desirable degree of supercooling in the interior heat release of subcooler 31, from the second liquid side outlet stop valve 34, flow out, flow to the throttle part 12 of indoor set 10, after throttle part 12 throttling coolings, flow to indoor heat exchanger 11, after the interior heat exchange of indoor heat exchanger 11, form high-temperature gas refrigerant, high-temperature gas refrigerant is through second pipe 42, the second gas side outlet stop valve 35, the second gas side entrance stop valve 36 flows back to the first gas side stop valve 27 of off-premises station 20, complete kind of refrigeration cycle.
According to another specific embodiment of the present invention, as shown in Figure 2, the import of flow controller 32 is connected with the outlet of first passage.
The refrigerant flowing out from a plurality of off-premises stations 20, through the first pipeline 41, flow into the subcooler 31 of supercooling apparatus 30, after flowing out, subcooler 31 is divided into two parts, a part flows to indoor set 10 through the first pipeline 41, another part flows to flow controller 32, after flow controller 32 throttling coolings, flow back to subcooler 31, carry out heat exchange with the refrigerant that flows to indoor set 10, like this, after certain hour, the refrigerant flowing out from a plurality of off-premises stations 20 subcooler 31 interior cold by heat release after, a part flows into flow controller 32 and again after throttling cooling, flows back to subcooler 31, thereby the refrigerant that makes to flow to indoor set 10 is interior cooling and obtain desirable degree of supercooling by secondary heat release at subcooler 31.
As shown in Figure 2, the specific works process of the multi-online air-conditioning system providing of the present embodiment is as follows:
From the first liquid side stop valve 24 of the off-premises station 20 of a plurality of parallel connections out low temperature liquid refrigerant out converge to the first pipeline 41, by the second liquid side entrance stop valve 33, enter the subcooler 31 of supercooling apparatus 30, after subcooler 31, first's refrigerant flows to indoor set 10, second portion refrigerant flows to flow controller 32, after flow controller 32 throttling coolings, flow back to subcooler 31, Bing Yu first refrigerant carries out after heat exchange, from the second gas side outlet stop valve 36, flow to second pipe 42, finally by second pipe 42, flowed back to the first gas side stop valve 27 of off-premises station 20, first part of part refrigerant is cooled and obtains after desirable degree of supercooling in the interior heat release of subcooler 31, from the second liquid side outlet stop valve 34, flow out, flow to the throttle part 12 of indoor set 10, after throttle part 12 throttling coolings, flow to indoor heat exchanger 11, after the interior heat exchange of indoor heat exchanger 11, form high-temperature gas refrigerant, high-temperature gas refrigerant is through second pipe 42 second gas side outlet stop valves 35, the second gas side entrance stop valve 36 flows back to the first gas side stop valve 27 of off-premises station 20, complete kind of refrigeration cycle.
In sum, multi-online air-conditioning system provided by the invention has the off-premises station of a plurality of parallel connections, and supercooling apparatus is detachably arranged on pipeline, and user can select whether supercooling apparatus is installed according to self-demand, and supercooling apparatus can be arranged on to the optional position of pipeline; Compare with the mode that prior art is arranged on supercooling apparatus in off-premises station, supercooling apparatus is removably mounted on the logical off-premises station of a plurality of parallel connections and the pipeline of indoor set, on the one hand, effectively reduce the use amount of supercooling apparatus, thereby effectively reduced the production cost of multi-online air-conditioning system, avoided causing the wasting of resources, on the other hand, reduce the volume of off-premises station, thereby increased the freight volume of off-premises station, reduced cost of transportation; In addition, after supercooling apparatus is installed, effectively improved the degree of superheat of multi-online air-conditioning system, prevented the band hydraulic compression of compressor, improve system reliability of operation, meanwhile, effectively solved the phenomenon of refrigerant shwoot before entering evaporimeter, reduce noise, and guaranteed the refrigeration of multi-online air-conditioning system.
In the description of this description, term " a plurality of " refers to two or more, and term " first ", " second " be the object for describing only, and can not be interpreted as indication or hint relative importance; Unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " etc. all should be interpreted broadly, and for example, " connection " can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; " being connected " can be to be directly connected, and also can indirectly be connected by intermediary.For the ordinary skill in the art, can understand as the case may be above-mentioned term concrete meaning in the present invention
In the description of this description, the description of term " embodiment ", " some embodiment ", " specific embodiment " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiment or example.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a multi-online air-conditioning system, is characterized in that, comprising:
Indoor set;
A plurality of off-premises stations, are connected with described indoor set by pipeline after a plurality of described off-premises station parallel connections; With
Supercooling apparatus, described supercooling apparatus is removably mounted on described pipeline, and described supercooling apparatus is connected with the described off-premises station of described indoor set and a plurality of parallel connections.
2. multi-online air-conditioning system according to claim 1, is characterized in that,
Described supercooling apparatus is removably mounted on described pipeline near a side of described indoor set.
3. multi-online air-conditioning system according to claim 1, is characterized in that,
Described pipeline comprises the first pipeline and second pipe;
Described in each, off-premises station includes compressor, cross valve, outdoor heat exchanger, the first liquid side stop valve, gas-liquid separator and the first gas side stop valve, the exhaust outlet of described compressor is connected with the exhaust port of described cross valve, described outdoor heat exchanger is connected with the condensation port of described cross valve, described the first liquid side stop valve is connected by choke valve with described outdoor heat exchanger, the import of described gas-liquid separator is connected with the air intake duct port of described cross valve, the outlet of described gas-liquid separator is connected with the gas returning port of described compressor, described the first gas side stop valve is connected with the evaporimeter port of described cross valve,
After a plurality of described the first liquid side stop valve parallel connections, by described the first pipeline, be connected with described indoor set, after a plurality of described the first gas side stop valve parallel connections, by described second pipe, be connected with described indoor set;
Described supercooling apparatus is removably mounted on described the first pipeline, and is connected with described the first gas side stop valve after a plurality of parallel connections.
4. multi-online air-conditioning system according to claim 3, is characterized in that,
Described supercooling apparatus comprises:
Subcooler, described subcooler has first passage and second channel, and described first passage is connected with described the first pipeline, and the outlet of described second channel is connected with described the first gas side stop valve after a plurality of parallel connections; With
Flow controller, the import of described flow controller is connected with described first passage, and the outlet of described flow controller is connected with the import of described second channel.
5. multi-online air-conditioning system according to claim 4, is characterized in that,
The import of described flow controller is connected with the import of described first passage.
6. multi-online air-conditioning system according to claim 4, is characterized in that,
The import of described flow controller is connected with the outlet of described first passage.
7. multi-online air-conditioning system according to claim 4, is characterized in that,
Described subcooler is plate type heat exchanger or double pipe heat exchanger.
8. multi-online air-conditioning system according to claim 4, is characterized in that,
Described flow controller is capillary or electric expansion valve or heating power expansion valve.
9. multi-online air-conditioning system according to claim 4, is characterized in that,
Described supercooling apparatus also comprises: the second liquid side outlet stop valve, the second liquid side entrance stop valve, the second gas side outlet stop valve and the second gas side entrance stop valve, the import of described first passage and outlet are connected with described the first pipeline by described the second liquid side entrance stop valve and described the second liquid side outlet stop valve respectively, the outlet of described second channel is connected with described the first gas side stop valve after a plurality of parallel connections by described the second gas side outlet stop valve and described the second gas side entrance stop valve, and described the second gas side outlet stop valve and described the second gas side entrance stop valve are positioned at the both sides of the outlet of described second channel.
10. according to the multi-online air-conditioning system described in any one in claim 3 to 9, it is characterized in that,
Described indoor set comprises: a plurality of indoor heat exchangers, described in each, indoor heat exchanger is all connected with a throttle part, after a plurality of described throttle part parallel connections, by described the first pipeline, be connected with described the first liquid side stop valve after a plurality of parallel connections, after a plurality of described indoor heat exchanger parallel connections, by described second pipe, be connected with described the first gas side stop valve after a plurality of parallel connections.
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