CN205174900U - Air conditioning system - Google Patents

Air conditioning system Download PDF

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Publication number
CN205174900U
CN205174900U CN201520844806.9U CN201520844806U CN205174900U CN 205174900 U CN205174900 U CN 205174900U CN 201520844806 U CN201520844806 U CN 201520844806U CN 205174900 U CN205174900 U CN 205174900U
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China
Prior art keywords
port
heat exchange
refrigerant
valve
air
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CN201520844806.9U
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Chinese (zh)
Inventor
孙兆雷
梁伯启
王小明
郭芳程
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Guangdong Midea HVAC Equipment Co Ltd
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Guangdong Midea HVAC Equipment Co Ltd
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Abstract

The utility model provides an air conditioning system, include: a compressor, the switching -over subassembly, an outdoor heat exchanger, the 2nd outdoor heat exchanger, main electronic expansion valve assembly and supplementary electronic expansion valve assembly, the compressor has the gas vent, return -air mouth and jet, the switching -over subassembly has first valve port to fourth valve port, the 2nd outdoor heat exchanger includes a heat exchange flow path and the 2nd heat exchange flow path of mutual heat transfer, it has main electronic expansion valve assembly to establish ties between a heat exchange flow path's first end and an outdoor heat exchanger's the second end, a heat exchange flow path's second end links to each other with the indoor set, the 2nd heat exchange flow path's export links to each other with the jet, supplementary electronic expansion valve assembly's first end and the 2nd heat exchange flow path's entry link to each other, supplementary electronic expansion valve assembly's second end is connected to between a heat exchange flow path's the second end and indoor set. According to the utility model discloses an air conditioning system has advantages such as the abundant and work efficiency height of refrigerant heat transfer.

Description

Air-conditioning system
Technical field
The utility model relates to air-conditioning equipment field, particularly relates to a kind of air-conditioning system.
Background technology
In correlation technique, there is the insufficient shortcoming of heat exchange in air-conditioning system, thus can cause the work efficiency drop of air-conditioning system, and energy consumption increases.
Utility model content
The utility model is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the utility model proposes a kind of air-conditioning system, described air-conditioning system has refrigerant heat exchange fully and operating efficiency advantages of higher.
According to air-conditioning system of the present utility model, comprising: compressor, described compressor has exhaust outlet, gas returning port and jet; Commutation assembly, described commutation assembly has the first valve port to the 4th valve port, described first valve port is communicated with one of them in the 3rd valve port with the second valve port, described 4th valve port and described second valve port are communicated with another in described 3rd valve port, described first valve port is connected with described exhaust outlet, and described 4th valve port is connected with described gas returning port; First outdoor heat exchanger, the first end of described first outdoor heat exchanger is connected with described second valve port; Second outdoor heat exchanger, described second outdoor heat exchanger comprises the first heat exchange stream and the second heat exchange stream of mutual heat exchange, main electronic expansion valve module is in series with between the first end of described first heat exchange stream and the second end of described first outdoor heat exchanger, second end of described first heat exchange stream is connected with indoor set, and the outlet of described second heat exchange stream is connected with described jet; Auxiliary electron expansion valve component, the first end of described auxiliary electron expansion valve component is connected with the entrance of described second heat exchange stream, between the second end that the second end of described auxiliary electron expansion valve component is connected to described first heat exchange stream and described indoor set.
According to air-conditioning system of the present utility model, there is refrigerant heat exchange fully and operating efficiency advantages of higher.
Particularly, described main electronic expansion valve module comprises multiple main electric expansion valve be connected in parallel.
Particularly, described auxiliary electron expansion valve component is an auxiliary electron expansion valve.
Particularly, described second outdoor heat exchanger is plate type heat exchanger.
Particularly, described commutation assembly is cross valve.
In embodiments more of the present utility model, air-conditioning system also comprises gas-liquid separator, and the entrance of described gas-liquid separator is connected with described 4th valve port, and the gas vent of described gas-liquid separator is connected with described gas returning port.
In embodiments more of the present utility model, air-conditioning system also comprises oil eliminator, described oil eliminator has import, outlet, oil return opening and unloading port, described import is connected with described exhaust outlet, described outlet is connected with described first valve port, described oil return opening is connected with described gas returning port respectively with described unloading port, be in series with unloading assembly between described unloading port and described gas returning port, described unloading assembly is configured to have reducing pressure by regulating flow effect and regulates the discharging quantity being drained into the refrigerant of described gas returning port.
Further, described unloading assembly comprises the first capillary and control valve that are connected in series.
Further, the second capillary is in series with between described oil return opening and described gas returning port.
Particularly, described control valve is magnetic valve.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the air-conditioning system according to first embodiment of the present utility model;
Fig. 2 is the schematic diagram of the air-conditioning system according to second embodiment of the present utility model;
Fig. 3 is the schematic diagram of the air-conditioning system according to the 3rd embodiment of the present utility model;
Fig. 4 is the schematic diagram of the air-conditioning system according to the 4th embodiment of the present utility model.
Reference numeral:
Air-conditioning system 100;
Compressor 1; Exhaust outlet 11; Gas returning port 12; Jet 13;
Commutation assembly 2; First valve port 21; Second valve port 22; 3rd valve port 23; 4th valve port 24;
First outdoor heat exchanger 3;
Second outdoor heat exchanger 4;
First heat exchange stream 41; Port A; Port B;
Second heat exchange stream 42; Port C; Port D;
Main electronic expansion valve module 5; First main electric expansion valve 51; Second main electric expansion valve 52;
Auxiliary electron expansion valve component 6;
Gas-liquid separator 7;
Oil eliminator 8; Import 81; Outlet 82; Oil return opening 83; Unloading port 84;
Unloading assembly 85; First capillary 851; Control valve 852;
Second capillary 861.
Detailed description of the invention
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In description of the present utility model, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
Describe according to air-conditioning system 100 of the present utility model below with reference to Fig. 1-Fig. 4, air-conditioning system 100 is made up of indoor set and off-premises station.
With reference to figure 1, according to the air-conditioning system 100 of the utility model embodiment, comprising: compressor 1, commutation assembly 2, first outdoor heat exchanger 3, second outdoor heat exchanger 4, main electronic expansion valve module 5 and auxiliary electron expansion valve component 6.
Particularly, compressor 1 has exhaust outlet 11, gas returning port 12 and jet 13, air-conditioning system 100 operationally, compressor 1 discharges the gaseous coolant of HTHP from exhaust outlet 11, the gaseous coolant of HTHP is after a series of work of participation, part refrigerant can come back in compressor 1 from gas returning port 12, and another part refrigerant can come back in compressor 1 from jet 13.
With reference to figure 1, commutation assembly 2 has the first valve port 21 to the 4th valve port 24, first valve port 21 is communicated with one of them in the 3rd valve port 23 with the second valve port 22, 4th valve port 24 and the second valve port 22 are communicated with another in the 3rd valve port 23, that is, when the first valve port 21 is communicated with the second valve port 22, 3rd valve port 23 can be communicated with the 4th valve port 24, when the first valve port 21 is communicated with the 3rd valve port 23, second valve port 22 can be communicated with the 4th valve port 24, thus by controlling commutation assembly 2, can control accurately the stream of refrigerant, ensure the stable operation of air-conditioning system 100, and refrigeration and heating operation can be realized.Alternatively, commutation assembly 2 be cross valve, it is appreciated of course that the assembly 2 that commutates can also be formed as other structures, can realize commutating as long as have the first valve port 21 to the 4th valve port 24.
With reference to figure 1, the first end (left end of the first outdoor heat exchanger 3 such as shown in Fig. 1) of the first outdoor heat exchanger 3 is connected with the second valve port 22, when air-conditioning system 100 refrigeration mode, can be entered in the first outdoor heat exchanger 3 by the first end of the first outdoor heat exchanger 3 from the refrigerant of the second valve port 22 discharge and carry out heat exchange, when air-conditioning system 100 heating mode, refrigerant in the first outdoor heat exchanger 3 after heat exchange can be discharged from the first end of the first outdoor heat exchanger 3, enters into commutation assembly 2 by the second valve port 22.
With reference to figure 1, second outdoor heat exchanger 4 comprises the first heat exchange stream 41 and the second heat exchange stream 42 of mutual heat exchange, main electronic expansion valve module 5 is in series with between the first end (the port A of the first heat exchange stream 41 such as shown in Fig. 1) of the first heat exchange stream 41 and second end (right-hand member of the first outdoor heat exchanger 3 such as shown in Fig. 1) of the first outdoor heat exchanger 3, second end (the port B of the first heat exchange stream 41 such as shown in Fig. 1) of the first heat exchange stream 41 is connected with indoor set (not shown), the outlet (the port D of the second heat exchange stream 42 such as shown in Fig. 1) of the second heat exchange stream 42 is connected with jet 13, the first end (lower end of the auxiliary electron expansion valve component 6 such as shown in Fig. 1) of auxiliary electron expansion valve component 6 is connected with the entrance (the port C of the second heat exchange stream 42 such as shown in Fig. 1) of the second heat exchange stream 42, second end (upper end of the auxiliary electron expansion valve component 6 such as shown in Fig. 1) of auxiliary electron expansion valve component 6 is connected between second end (the port B of the first heat exchange stream 41 such as shown in Fig. 1) of the first heat exchange stream 41 and indoor set.
Specifically, in first embodiment of the present utility model, with reference to figure 1, air-conditioning system 100 is when freezing, compressor 1 discharges the gaseous coolant of HTHP from exhaust outlet 11, commutation assembly 2 is entered into by the first valve port 21, then flow out from the second valve port 22 of commutation assembly 2, entered in the first outdoor heat exchanger 3 by the left end of the first outdoor heat exchanger 3 and carry out heat exchange releasing heat, refrigerant can carry out reducing pressure by regulating flow by main electronic expansion valve module 5 subsequently, refrigerant through reducing pressure by regulating flow can enter into the first heat exchange stream 41 from port A, flow out from the port B of the first heat exchange stream 41 after heat exchange, in the upper end (port E Fig. 1 shown in) of refrigerant through auxiliary electron expansion valve component 6, a part refrigerant enter into indoor set carry out heat exchange absorb heat reach refrigeration, another part refrigerant is through the throttling decrease temperature and pressure of auxiliary electron expansion valve component 6, enter from the port C of the second heat exchange stream 42, port D flows out, refrigerant meeting now in the second heat exchange stream 42 and the refrigerant in the first heat exchange stream 41 carry out heat exchange, absorb the heat of refrigerant in the first heat exchange stream 41 further, effectively improve refrigeration, and become overheated gas after refrigerant heat exchange in the second heat exchange stream 42, flow out from port D, by pressing chamber in jet 13 injected back contracting machine 1, significantly reduce energy consumption, improve the operating efficiency of air-conditioner, the stream of the refrigerant in the first heat exchange stream 41 is now from port A to port B, the stream of the refrigerant in the second heat exchange stream 42 is from port C to port D, thus can be described as following current heat exchange.
With reference to figure 1, air-conditioning system 100 is when heating, compressor 1 discharges the gaseous coolant of HTHP from exhaust outlet 11, commutation assembly 2 is entered into by the first valve port 21, then flow out from the 3rd valve port 23 of commutation assembly 2, the gaseous coolant of HTHP can enter into indoor set and carry out heat exchange releasing heat, reach the object heated, refrigerant after heat exchange is when upper end (the port E shown in Fig. 1) by auxiliary electron expansion valve component 6, part refrigerant enters in the first heat exchange stream 41 by the port B of the first heat exchange stream 41, flow out from the port A of the first heat exchange stream 41 afterwards, the first outdoor heat exchanger 3 is entered into after the reducing pressure by regulating flow of main electronic expansion valve module 5, heat is absorbed in the first outdoor heat exchanger 3, thus reach the object absorbing heat outdoor, another part refrigerant is through the throttling decrease temperature and pressure of auxiliary electron expansion valve component 6, enter from the port C of the second heat exchange stream 42, port D flows out, refrigerant meeting now in the second heat exchange stream 42 and the refrigerant in the first heat exchange stream 41 carry out heat exchange, absorb the heat of refrigerant in the first heat exchange stream 41 further, and flow out from port D after refrigerant heat exchange in the second heat exchange stream 42, by pressing chamber in jet 13 injected back contracting machine 1, significantly reduce energy consumption, improve the operating efficiency of air-conditioner, the stream of the refrigerant in the first heat exchange stream 41 is now from port B to port A, the stream of the refrigerant in the second heat exchange stream 42 is from port C to port D, thus can countercurrent flow be referred to as.
It can thus be appreciated that, by being provided with the first heat exchange stream 41 and the second heat exchange stream 42 of mutual heat exchange, and the stream of the refrigerant in the first heat exchange stream 41 and the second heat exchange stream 42 is reasonably set, effectively can improve the heat exchange efficiency of refrigerant, improve refrigeration and the heating effect of air-conditioning system 100, reduce energy consumption, improve the operating efficiency of air-conditioning system 100.
Below with reference to the operation principle of second embodiment of the description that Fig. 2-Fig. 4 is concise and to the point air-conditioning system 100 of the present utility model, the 3rd embodiment and the 4th embodiment.
In second embodiment of the present utility model, with reference to figure 2, air-conditioning system 100 is when freezing, compressor 1 discharges the gaseous coolant of HTHP from exhaust outlet 11, commutation assembly 2 is entered into by the first valve port 21, then flow out from the second valve port 22 of commutation assembly 2, entered in the first outdoor heat exchanger 3 by the left end of the first outdoor heat exchanger 3 and carry out heat exchange releasing heat, refrigerant can carry out reducing pressure by regulating flow by main electronic expansion valve module 5 subsequently, the first heat exchange stream 41 can be entered into from port A by the refrigerant of reducing pressure by regulating flow, flow out from the port B of the first heat exchange stream 41 after heat exchange, at the right-hand member (port E Fig. 2 shown in) of refrigerant through auxiliary electron expansion valve component 6, a part refrigerant enter into indoor set carry out heat exchange absorb heat reach refrigeration, another part refrigerant is through the throttling decrease temperature and pressure of auxiliary electron expansion valve component 6, enter from the port D of the second heat exchange stream 42, port C flows out, refrigerant meeting now in the second heat exchange stream 42 and the refrigerant in the first heat exchange stream 41 carry out heat exchange, absorb the heat of refrigerant in the first heat exchange stream 41 further, effectively improve refrigeration, and become overheated gas after refrigerant heat exchange in the second heat exchange stream 42, flow out from port C, by pressing chamber in jet 13 injected back contracting machine 1, significantly reduce energy consumption, improve the operating efficiency of air-conditioner, the stream of the refrigerant in the first heat exchange stream 41 is now from port A to port B, the stream of the refrigerant in the second heat exchange stream 42 is from port D to port C, thus can be described as countercurrent flow.
With reference to figure 2, air-conditioning system 100 is when heating, compressor 1 discharges the gaseous coolant of HTHP from exhaust outlet 11, commutation assembly 2 is entered into by the first valve port 21, then flow out from the 3rd valve port 23 of commutation assembly 2, the gaseous coolant of HTHP can enter into indoor set and carry out heat exchange releasing heat, reach the object heated, refrigerant after heat exchange is when right-hand member (the port E shown in Fig. 2) by auxiliary electron expansion valve component 6, part refrigerant enters in the first heat exchange stream 41 by the port B of the first heat exchange stream 41, flow out from the port A of the first heat exchange stream 41 afterwards, the first outdoor heat exchanger 3 is entered into after the reducing pressure by regulating flow of main electronic expansion valve module 5, in the first outdoor heat exchanger 3, heat exchange absorbs heat, thus reach the object absorbing heat outdoor, another part refrigerant is through the throttling decrease temperature and pressure of auxiliary electron expansion valve component 6, enter from the port D of the second heat exchange stream 42, port C flows out, refrigerant meeting now in the second heat exchange stream 42 and the refrigerant in the first heat exchange stream 41 carry out heat exchange, absorb the heat of refrigerant in the first heat exchange stream 41 further, and flow out from port C after refrigerant heat exchange in the second heat exchange stream 42, by pressing chamber in jet 13 injected back contracting machine 1, significantly reduce energy consumption, improve the operating efficiency of air-conditioner, the stream of the refrigerant in the first heat exchange stream 41 is now from port B to port A, the stream of the refrigerant in the second heat exchange stream 42 is from port D to port C, thus following current heat exchange can be referred to as.
From first embodiment and second embodiment of above-mentioned air-conditioning system of the present utility model 100, when being following current heat exchange under heating mode, being then countercurrent flow under refrigeration mode, when being countercurrent flow under heating mode, is then following current heat exchange under refrigeration mode.
In the 3rd embodiment of the present utility model, with reference to figure 3, air-conditioning system 100 is when freezing, compressor 1 discharges the gaseous coolant of HTHP from exhaust outlet 11, commutation assembly 2 is entered into by the first valve port 21, then flow out from the second valve port 22 of commutation assembly 2, entered in the first outdoor heat exchanger 3 by the left end of the first outdoor heat exchanger 3 and carry out heat exchange releasing heat, refrigerant can carry out reducing pressure by regulating flow by main electronic expansion valve module 5 subsequently, the first heat exchange stream 41 can be entered into from port B by the refrigerant of reducing pressure by regulating flow, flow out from the port A of the first heat exchange stream 41 after heat exchange, in the upper end (port E Fig. 3 shown in) of refrigerant through auxiliary electron expansion valve component 6, a part refrigerant enter into indoor set carry out heat exchange absorb heat reach refrigeration, another part refrigerant is through the throttling decrease temperature and pressure of auxiliary electron expansion valve component 6, enter from the port C of the second heat exchange stream 42, port D flows out, refrigerant meeting now in the second heat exchange stream 42 and the refrigerant in the first heat exchange stream 41 carry out heat exchange, absorb the heat of refrigerant in the first heat exchange stream 41 further, effectively improve refrigeration, and become overheated gas after refrigerant heat exchange in the second heat exchange stream 42, flow out from port D, by pressing chamber in jet 13 injected back contracting machine 1, significantly reduce energy consumption, improve the operating efficiency of air-conditioner, the stream of the refrigerant in the first heat exchange stream 41 is now from port B to port A, the stream of the refrigerant in the second heat exchange stream 42 is from port C to port D, thus can be described as countercurrent flow.
With reference to figure 3, air-conditioning system 100 is when heating, compressor 1 discharges the gaseous coolant of HTHP from exhaust outlet 11, commutation assembly 2 is entered into by the first valve port 21, then flow out from the 3rd valve port 23 of commutation assembly 2, the gaseous coolant of HTHP can enter into indoor set and carry out heat exchange releasing heat, reach the object heated, refrigerant after heat exchange is when upper end (the port E shown in Fig. 3) by auxiliary electron expansion valve component 6, part refrigerant enters in the first heat exchange stream 41 by the port A of the first heat exchange stream 41, flow out from the port B of the first heat exchange stream 41 afterwards, the first outdoor heat exchanger 3 is entered into after the reducing pressure by regulating flow of main electronic expansion valve module 5, in the first outdoor heat exchanger 3, heat exchange absorbs heat, thus reach the object absorbing heat outdoor, another part refrigerant is through the throttling decrease temperature and pressure of auxiliary electron expansion valve component 6, enter from the port C of the second heat exchange stream 42, port D flows out, refrigerant meeting now in the second heat exchange stream 42 and the refrigerant in the first heat exchange stream 41 carry out heat exchange, absorb the heat of refrigerant in the first heat exchange stream 41 further, and flow out from port D after refrigerant heat exchange in the second heat exchange stream 42, by pressing chamber in jet 13 injected back contracting machine 1, significantly reduce energy consumption, improve the operating efficiency of air-conditioner, the stream of the refrigerant in the first heat exchange stream 41 is now from port A to port B, the stream of the refrigerant in the second heat exchange stream 42 is from port C to port D, thus following current heat exchange can be referred to as.
In the 4th embodiment of the present utility model, with reference to figure 4, air-conditioning system 100 is when freezing, compressor 1 discharges the gaseous coolant of HTHP from exhaust outlet 11, commutation assembly 2 is entered into by the first valve port 21, then flow out from the second valve port 22 of commutation assembly 2, entered in the first outdoor heat exchanger 3 by the left end of the first outdoor heat exchanger 3 and carry out heat exchange releasing heat, refrigerant can carry out reducing pressure by regulating flow by main electronic expansion valve module 5 subsequently, the first heat exchange stream 41 can be entered into from port B by the refrigerant of reducing pressure by regulating flow, flow out from the port A of the first heat exchange stream 41 after heat exchange, at the right-hand member (port E Fig. 4 shown in) of refrigerant through auxiliary electron expansion valve component 6, a part refrigerant enter into indoor set carry out heat exchange absorb heat reach refrigeration, another part refrigerant is through the throttling decrease temperature and pressure of auxiliary electron expansion valve component 6, enter from the port D of the second heat exchange stream 42, port C flows out, refrigerant meeting now in the second heat exchange stream 42 and the refrigerant in the first heat exchange stream 41 carry out heat exchange, absorb the heat of refrigerant in the first heat exchange stream 41 further, effectively improve refrigeration, and become overheated gas after refrigerant heat exchange in the second heat exchange stream 42, flow out from port C, by pressing chamber in jet 13 injected back contracting machine 1, significantly reduce energy consumption, improve the operating efficiency of air-conditioner, the stream of the refrigerant in the first heat exchange stream 41 is now from port B to port A, the stream of the refrigerant in the second heat exchange stream 42 is from port D to port C, thus can be described as following current heat exchange.
With reference to figure 4, air-conditioning system 100 is when heating, compressor 1 discharges the gaseous coolant of HTHP from exhaust outlet 11, commutation assembly 2 is entered into by the first valve port 21, then flow out from the 3rd valve port 23 of commutation assembly 2, the gaseous coolant of HTHP can enter into indoor set and carry out heat exchange releasing heat, reach the object heated, refrigerant after heat exchange is when right-hand member (the port E shown in Fig. 4) by auxiliary electron expansion valve component 6, part refrigerant enters in the first heat exchange stream 41 by the port A of the first heat exchange stream 41, flow out from the port B of the first heat exchange stream 41 afterwards, the first outdoor heat exchanger 3 is entered into after the reducing pressure by regulating flow of main electronic expansion valve module 5, in the first outdoor heat exchanger 3, heat exchange absorbs heat, thus reach the object absorbing heat outdoor, another part refrigerant is through the throttling decrease temperature and pressure of auxiliary electron expansion valve component 6, enter from the port D of the second heat exchange stream 42, port C flows out, refrigerant meeting now in the second heat exchange stream 42 and the refrigerant in the first heat exchange stream 41 carry out heat exchange, absorb the heat of refrigerant in the first heat exchange stream 41 further, and flow out from port C after refrigerant heat exchange in the second heat exchange stream 42, by pressing chamber in jet 13 injected back contracting machine 1, significantly reduce energy consumption, improve the operating efficiency of air-conditioner, the stream of the refrigerant in the first heat exchange stream 41 is now from port A to port B, the stream of the refrigerant in the second heat exchange stream 42 is from port D to port C, thus can countercurrent flow be referred to as.
According to air-conditioning system 100 of the present utility model, by being provided with the first heat exchange stream 41 and the second heat exchange stream 42 of mutual heat exchange, and the flow direction of the refrigerant in the first heat exchange stream 41 and the second heat exchange stream 42 is reasonably set, effectively can improve the heat exchange efficiency of refrigerant, improve the cooling or heating effect of air-conditioning system 100, reduce energy consumption, improve the operating efficiency of air-conditioning system 100.
In embodiments more of the present utility model, main electronic expansion valve module 5 can comprise multiple main electric expansion valve be connected in parallel, such as in the concrete example of Fig. 1, main electronic expansion valve module 5 comprises two the first main electric expansion valve 51 and the second main electric expansion valves 52 be connected in parallel, thus the effect of reducing pressure by regulating flow can be played to refrigerant, and can effectively control the stream of refrigerant.
In embodiments more of the present utility model, auxiliary electron expansion valve component 6 can be an auxiliary electron expansion valve, thus can play the object of throttling decrease temperature and pressure to refrigerant, and effectively can reduce the production cost of air-conditioning system 100.
In embodiments more of the present utility model, the second outdoor heat exchanger 4 can be plate type heat exchanger, thus is convenient to the control to refrigerant flow, and is convenient to the abundant heat exchange of refrigerant in plate type heat exchanger.
In embodiments more of the present utility model, with reference to figure 1, air-conditioning system 100 also comprises gas-liquid separator 7, the entrance (gas-liquid separator 7 left port such as shown in Fig. 1) of gas-liquid separator 7 is connected with the 4th valve port 24, the gas vent (gas-liquid separator 7 right output port such as shown in Fig. 1) of gas-liquid separator 7 is connected with gas returning port 12, specifically, the gas-liquid mixed refrigerant of discharging from the 4th valve port 24 enters in gas-liquid separator 7 by the entrance of gas-liquid separator 7, gaseous coolant and liquid refrigerants is separated opens in gas-liquid separator 7, gaseous coolant is discharged from the gas vent of gas-liquid separator 7, come back in compressor 1 eventually through gas returning port 12, thus liquid refrigerants can be avoided to get back in compressor 1, avoid compressor 1 that liquid hit phenomenon occurs, ensure that the job stability of air-conditioning system 100.
In embodiments more of the present utility model, with reference to figure 1, air-conditioning system 100 also comprises oil eliminator 8, oil eliminator 8 has import 81, outlet 82, oil return opening 83 and unloading port 84, import 81 is connected with exhaust outlet 11, outlet 82 is connected with the first valve port 21, oil return opening 83 is connected with gas returning port 12 respectively with unloading port 84, specifically, refrigerant after compressor 1 compresses can mix a part of lubricating oil when being discharged by the exhaust outlet 11 of compressor 1, then the refrigerant being mixed with lubricating oil enters oil eliminator 8 through import 81, by the process of oil eliminator 8, lubricating oil can be separated from refrigerant, isolated lubricating oil is discharged from oil return opening 83 and is come back in compressor 1 eventually through gas returning port 12, thus lubricating oil can be utilized efficiently, by the isolated refrigerant of oil eliminator 8, according to the power needs of air-conditioning system 100, a part flows out from unloading port 84, another part is discharged from the outlet 82 of oil eliminator 8, entered in commutation assembly 2 by the first valve port 21.
Further, be in series with between unloading port 84 and gas returning port 12 and unload assembly 85, unloading assembly 85 is configured to have reducing pressure by regulating flow effect and regulates the discharging quantity being drained into the refrigerant of gas returning port 12, specifically, the high pressure refrigerant not participating in freezing or heating circulation flows out from unloading port 84, through the reducing pressure by regulating flow of unloading assembly 85, after becoming the refrigerant of low pressure, reenter compressor 1 by gas returning port 12.Simultaneously by regulating unloading assembly 85, the flow being expelled back into the refrigerant in compressor 1 from unloading port 84 can be regulated, to regulate discharging quantity according to actual conditions.Such as when the indoor set load in air-conditioning system 100 is lower, the refrigerant that needs participate in freezing or heating circulation is just less, so we can regulate unloading assembly 85 to make the more refrigerant participating in circulation that do not need flow out from unloading port 84 and get back in compressor 1 after reducing pressure by regulating flow, identical principle, when the indoor set load in air-conditioning system 100 is higher, need the refrigerant participating in circulation just more, so we can regulate unloading assembly 85 to make the less refrigerant participating in circulation that do not need flow out from unloading port 84 and get back to after reducing pressure by regulating flow in compressor 1.It can thus be appreciated that, by arranging unloading assembly 85, the discharging quantity of refrigerant can discharged from unloading assembly 85 according to the payload regulable control of the indoor set in air-conditioning system 100, thus can the operating efficiency of exhaust adjusting system 100 effectively.
In embodiments more of the present utility model, with reference to figure 1, unloading assembly 85 can comprise the first capillary 851 and control valve 852 that are connected in series, specifically, control valve 852 according to the size of indoor set load, can regulate the uninterrupted of self, thus controls the discharging quantity of refrigerant automatically, after the refrigerant unloaded passes through the reducing pressure by regulating flow of control valve 852 and the first capillary 851, the refrigerant finally becoming low pressure reenters compressor 1.Wherein the type of control valve 852 and the first capillary 851 can open minimal condition design by indoor set list.Preferably, control valve 852 is magnetic valve.
In embodiments more of the present utility model, with reference to figure 1, the second capillary 861 is in series with between oil return opening 83 and gas returning port 12, like this, when being mixed into the gaseous coolant of a small amount of HTHP in the lubricating oil that oil return opening 83 is discharged, second capillary 861 effectively to the gaseous coolant reducing pressure by regulating flow of HTHP, thus can improve the job stability of air-conditioning system 100 effectively.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this description or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment, revises, replace and modification in scope of the present utility model.

Claims (10)

1. an air-conditioning system, is characterized in that, comprising:
Compressor, described compressor has exhaust outlet, gas returning port and jet;
Commutation assembly, described commutation assembly has the first valve port to the 4th valve port, described first valve port is communicated with one of them in the 3rd valve port with the second valve port, described 4th valve port and described second valve port are communicated with another in described 3rd valve port, described first valve port is connected with described exhaust outlet, and described 4th valve port is connected with described gas returning port;
First outdoor heat exchanger, the first end of described first outdoor heat exchanger is connected with described second valve port;
Second outdoor heat exchanger, described second outdoor heat exchanger comprises the first heat exchange stream and the second heat exchange stream of mutual heat exchange, main electronic expansion valve module is in series with between the first end of described first heat exchange stream and the second end of described first outdoor heat exchanger, second end of described first heat exchange stream is connected with indoor set, and the outlet of described second heat exchange stream is connected with described jet;
Auxiliary electron expansion valve component, the first end of described auxiliary electron expansion valve component is connected with the entrance of described second heat exchange stream, between the second end that the second end of described auxiliary electron expansion valve component is connected to described first heat exchange stream and described indoor set.
2. air-conditioning system according to claim 1, is characterized in that, described main electronic expansion valve module comprises multiple main electric expansion valve be connected in parallel.
3. air-conditioning system according to claim 1, is characterized in that, described auxiliary electron expansion valve component is an auxiliary electron expansion valve.
4. air-conditioning system according to claim 1, is characterized in that, described second outdoor heat exchanger is plate type heat exchanger.
5. air-conditioning system according to claim 1, is characterized in that, described commutation assembly is cross valve.
6. air-conditioning system according to claim 1, is characterized in that, also comprises gas-liquid separator, and the entrance of described gas-liquid separator is connected with described 4th valve port, and the gas vent of described gas-liquid separator is connected with described gas returning port.
7. air-conditioning system according to claim 1, it is characterized in that, also comprise oil eliminator, described oil eliminator has import, outlet, oil return opening and unloading port, described import is connected with described exhaust outlet, described outlet is connected with described first valve port, described oil return opening is connected with described gas returning port respectively with described unloading port, be in series with unloading assembly between described unloading port and described gas returning port, described unloading assembly is configured to have reducing pressure by regulating flow effect and regulates the discharging quantity being drained into the refrigerant of described gas returning port.
8. air-conditioning system according to claim 7, is characterized in that, described unloading assembly comprises the first capillary and control valve that are connected in series.
9. air-conditioning system according to claim 7, is characterized in that, is in series with the second capillary between described oil return opening and described gas returning port.
10. air-conditioning system according to claim 8, is characterized in that, described control valve is magnetic valve.
CN201520844806.9U 2015-10-27 2015-10-27 Air conditioning system Active CN205174900U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106196694A (en) * 2016-07-11 2016-12-07 广东美的暖通设备有限公司 Air conditioning system
CN107192156A (en) * 2017-05-18 2017-09-22 广东美的暖通设备有限公司 Air conditioner, the defrosting control method of air conditioner and system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106196694A (en) * 2016-07-11 2016-12-07 广东美的暖通设备有限公司 Air conditioning system
CN106196694B (en) * 2016-07-11 2019-04-02 广东美的暖通设备有限公司 Air-conditioning system
CN107192156A (en) * 2017-05-18 2017-09-22 广东美的暖通设备有限公司 Air conditioner, the defrosting control method of air conditioner and system
CN107192156B (en) * 2017-05-18 2021-03-02 广东美的暖通设备有限公司 Air conditioner and defrosting control method and system of air conditioner

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