CN105588377A - Air conditioning equipment - Google Patents
Air conditioning equipment Download PDFInfo
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- CN105588377A CN105588377A CN201410629004.6A CN201410629004A CN105588377A CN 105588377 A CN105588377 A CN 105588377A CN 201410629004 A CN201410629004 A CN 201410629004A CN 105588377 A CN105588377 A CN 105588377A
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Abstract
The embodiment of the invention provides air conditioning equipment, and relates to the field of air conditioners. The air conditioning equipment is used for improving the comprehensive heat exchange efficiency of a heat exchanger serving as a condenser and an evaporator. The air conditioning equipment comprises a compressor, a four-way reversing valve, a throttling element, a first heat exchange assembly and a second heat exchange assembly. The inlet end of a first check valve in the first heat exchange assembly is connected with a third end opening of the four-way reversing valve, and the outlet end of the first check valve in the first heat exchange assembly is connected with the inlet end of a first distributor. The outlet end of the first distributor is connected with the inlet end of the heat exchanger. The outlet end of the heat exchanger is connected with the inlet end of a second check valve and the inlet end of a third check valve. The outlet end of the second check valve is connected with the throttling element. The outlet end of the third check valve is connected with a third end opening of the four-way reversing valve. The inlet end of a fourth check valve is connected with the throttling element, and the outlet end of the fourth check valve is connected with the inlet end of the first distributor. One end of the second heat exchange assembly is connected with a fourth end opening of the four-way reversing valve, and the other end of the second heat exchange assembly is connected with the throttling element.
Description
Technical field
The present invention relates to field of air conditioning, relate in particular to a kind of air-conditioning equipment.
Background technology
Along with the development of air-conditioning equipment technology, air-conditioning equipment is used by increasing user.Existing air-conditioning equipment has the function that both can freeze and also can heat, to better meet useFamily needs.
Existing air-conditioning equipment is divided into indoor set and off-premises station. As shown in Figure 1, off-premises station comprises:Compressor 1, four-way change-over valve 2, outdoor heat exchanger 3 and restricting element 4. Wherein, compressor1 the port of export is connected with four-way change-over valve 2 first ports, the second port of four-way change-over valve 2 withThe first port of outdoor heat exchanger 3 connects, the 3rd port and the compressor 1 of four-way change-over valve 2Entrance point connect, the second port of outdoor heat exchanger 3 is by distribution pipeline and restricting element 4Connect. The indoor set connecting comprises: indoor heat exchanger 5. Wherein, first of indoor heat exchanger 5Port is connected with restricting element 4, and the second port is connected with the 4th port of four-way change-over valve 2.
Like this, in the time of indoor need to refrigeration, compressor 1, with the former running of setpoint frequency, produces highThe cold-producing medium of temperature high pressure, flows to four-way change-over valve 2, now four-way by the port of export of compressor 1The 3rd port of reversal valve 2 and the 4th port shutdown, the second port is opened, the system of HTHPCryogen flows to chamber by the second port of four-way change-over valve 2 and the first port of outdoor heat exchanger 3External heat exchanger 3, the cold-producing medium of HTHP carries out heat exchange with air in outdoor heat exchanger 3,Air is heated, and the cold-producing medium of HTHP is condensed into the cold-producing medium of cryogenic high pressure. Cold-producing mediumBecome liquid state from gaseous state. Become liquid cryogenic high pressure cold-producing medium by the of outdoor heat exchanger 3Two ports flow out, by restricting element 4, because restricting element 4 has the effect of throttling, by lowTemperature high-pressure refrigerant becomes the cold-producing medium of low-temp low-pressure, and by first of indoor set heat exchanger 5Port flows to indoor heat exchanger 5. The cold-producing medium of low-temp low-pressure is in indoor heat exchanger 5, with indoorAir in heat exchanger 5 has carried out heat exchange, and the cold-producing medium of low-temp low-pressure absorbs air heat,Become gaseous state from liquid state. Cooled dose of absorption of airborne heat, temperature reduces, and like this canThe air that has reduced temperature is blown to indoor, indoor temperature is reduced. And become the refrigeration of gaseous stateAgent flows to the 4th port of four-way change-over valve 2 from the second port of indoor heat exchanger 5. Now fourThe first port and second port of logical reversal valve 2 are all closed, and become the cold-producing medium of gaseous state by fourThe 3rd port flow of logical reversal valve 2 is returned compressor 1.
In the time of indoor need to heating, compressor 1, with the former running of setpoint frequency, produces HTHPCold-producing medium, flow to four-way change-over valve 2, now four-way change-over valve by the port of export of compressor 1The second port of 2 and the 3rd port shutdown, the 4th port is opened, and the cold-producing medium of HTHP passes throughThe 4th port of four-way change-over valve 2 is that the second port of indoor heat exchanger 5 flows to indoor heat exchanger5, the cold-producing medium of HTHP air in indoor heat exchanger 5 carries out heat exchange, and air is heated,And the cold-producing medium of HTHP is condensed into the cold-producing medium of cryogenic high pressure. Cold-producing medium is become from gaseous stateLiquid. Now, the air of called heat blows to indoor by the air outlet of indoor set, makes Indoor TemperatureDegree promotes. And become liquid cryogenic high pressure cold-producing medium by the first port of indoor heat exchanger 5Flow out to restricting element 4, because restricting element 4 has the effect of throttling, cryogenic high pressure is freezedAgent becomes the cold-producing medium of low-temp low-pressure, and by the second port of outdoor heat exchanger 3, flowed into chamberExternal heat exchanger 3. Air in the cold-producing medium of low-temp low-pressure and outdoor heat exchanger 3 carries out heat exchange,The cold-producing medium of low-temp low-pressure absorbs air heat, becomes gaseous state from liquid state. Now, become gaseous stateCold-producing medium flow to the second port of four-way change-over valve 2 from the first port of outdoor heat exchanger 3.Now the first port of four-way change-over valve 2 and the 4th port are all closed, and become the cold-producing medium of gaseous stateThe 3rd port flow by four-way change-over valve 2 is returned compressor 1.
By above-mentioned refrigeration or to heat process known, the heat exchanger of the air-conditioning equipment of existing structureBe indoor heat exchanger and outdoor heat exchanger when as condenser, between air and cold-producing mediumHeat exchange is countercurrent flow, and heat exchanger is indoor heat exchanger and outdoor heat exchanger as evaporationWhen device, the heat exchange between air and cold-producing medium is following current heat exchange. And the heat exchange efficiency of following current heat exchangeLower, cause the comprehensive heat exchange efficiency of heat exchanger as condenser and evaporimeter.
Summary of the invention
Embodiments of the invention provide a kind of air-conditioning equipment, in order to improve heat exchanger as condenserAnd the comprehensive heat exchange efficiency of evaporimeter.
For achieving the above object, embodiments of the invention adopt following technical scheme:
The embodiment of the present invention provides a kind of air-conditioning equipment, comprising: compressor, and four-way change-over valve,Restricting element, the port of export of described compressor is connected with the first port of described four-way change-over valve,The entrance point of described compressor is connected with the second port of described four-way change-over valve, also comprises: theOne heat-exchanging component and the second heat-exchanging component; Wherein, described the first heat-exchanging component comprises heat exchanger,The first check valve, the second check valve, the 3rd check valve, and the 4th check valve, current divider; InstituteState the entrance point of the first check valve and the 3rd port of described four-way change-over valve is connected, described firstThe port of export of check valve is connected with the entrance point of described current divider; The port of export of described current divider withThe entrance point of described heat exchanger connects, for the cold-producing medium of reception is branched to described heat exchanger;The entrance point of the port of export of described heat exchanger and described the second check valve and described the 3rd check valve connectsConnect; The port of export of described the second check valve is connected with described restricting element; Described the 3rd check valveThe port of export be connected with the 3rd port of described four-way change-over valve; The import of described the 4th check valveEnd is connected with described restricting element, and the port of export is connected with the entrance point of described the first current divider; InstituteState one end of the second heat-exchanging component and the 4th port of described four-way change-over valve is connected, the other end withDescribed restricting element connects.
The embodiment of the present invention provides a kind of air-conditioning equipment, comprising: compressor, and four-way change-over valve,Restricting element, the first heat-exchanging component and the second heat-exchanging component, wherein, described the first heat-exchanging componentComprise heat exchanger, the first check valve, the second check valve, the 3rd check valve, and the 4th check valve,Current divider, the entrance point of the first check valve is connected with the 3rd port of four-way change-over valve, and first is singleThe port of export to valve is connected with the entrance point of the first current divider, the port of export of the first current divider with changeThe entrance point of hot device connects, for the cold-producing medium of reception is branched to described heat exchanger, heat exchangerThe port of export be connected with the entrance point of the second check valve and the 3rd check valve, the going out of the second check valveMouth end is connected with restricting element, the 3rd port of the port of export of the 3rd check valve and four-way change-over valveConnect, the entrance point of the 4th check valve is connected with restricting element, the port of export and the first current dividerEntrance point connects; One end of the second heat-exchanging component is connected with the 4th port of four-way change-over valve, anotherOne end is connected with restricting element. Like this, at the first heat-exchanging component, during as condenser, first is singleOpen the 3rd check valve, the 4th closed check valve to valve the second check valve. Now, compressorWith predeterminated frequency operation, produce the cold-producing medium of HTHP, by the first end of four-way change-over valveMouth flows to four-way change-over valve, the 3rd port open of four-way change-over valve, the second port and the 4th endMouth is closed, so the cold-producing medium of HTHP flows to the first list by the entrance point of the first check valveTo valve, and flow to the entrance point of the first current divider by the port of export of the first check valve. First pointStream device branches to the cold-producing medium of HTHP each entrance point of heat exchanger. The system of HTHPCryogen flows to after heat exchanger by each entrance point of heat exchanger, carries out with the air in heat exchangerHeat exchange, the cold-producing medium of HTHP is condensed into the cold-producing medium of liquid cryogenic high pressure. Now,The cold-producing medium of liquid cryogenic high pressure flows out by the port of export of heat exchanger. Due to the 3rd check valveClose, the second check valve is opened, so the cold-producing medium of liquid cryogenic high pressure passes through heat exchangerThe port of export flow to the second check valve, and due to the 4th closed check valve, so, liquidThe cold-producing medium of cryogenic high pressure flows to restricting element by the second check valve, and then enters the second heat exchangeAssembly. Now, the first heat-exchanging component is during as condenser, and the heat exchange between air and cold-producing medium isCountercurrent flow.
Be evaporimeter at the first heat-exchanging component, the first check valve, the second closed check valve, the 3rdCheck valve, the 4th check valve is opened. Now compressor moves with predeterminated frequency, produces high temperature highThe cold-producing medium of pressing, flows to four-way change-over valve by the first port of four-way change-over valve, four-way commutationThe 4th port open of valve, the second port and the 3rd port shutdown, so the refrigeration of HTHPAgent flows to the second heat-exchanging component, by with the second heat-exchanging component in air carry out after heat exchange,The cold-producing medium of HTHP becomes the cold-producing medium of liquid cryogenic high pressure in the second heat-exchanging component,And the cold-producing medium of liquid cryogenic high pressure flows to restricting element, because restricting element 4 has throttlingEffect, liquid cryogenic high pressure cold-producing medium is become to the cold-producing medium of liquid low-temp low-pressure. LiquidThe refrigeration of the low-temp low-pressure of state is entered the port of export by restricting element, flows to the 4th check valve, andAnd the refrigeration of liquid low-temp low-pressure flows to the first current divider by the 4th check valve. The first shuntingDevice branches to the cold-producing medium of liquid low-temp low-pressure each entrance point of heat exchanger. Liquid is lowThe cold-producing medium of temperature low pressure flows to after heat exchanger by each entrance point of heat exchanger, in heat exchangerAir carry out heat exchange, the cold-producing medium of liquid low-temp low-pressure absorbs the heat of air, by liquidThe cold-producing medium of the cryogenic high pressure of state becomes the cold-producing medium of gaseous state. Now, the cold-producing medium of gaseous state passes throughThe port of export of heat exchanger flows out. Due to the second closed check valve, the 3rd check valve is opened, soThe cold-producing medium of gaseous state flow to the 3rd port of four-way change-over valve by the 3rd check valve. Due to firstClosed check valve, so the cold-producing medium of gaseous state flows to four-way by the 3rd port of four-way change-over valveReversal valve, and now the first port and the 4th port shutdown of four-way change-over valve, the second portOpen, so the cold-producing medium of gaseous state enters compressor by the second port flow of four-way change-over valve. ThisSample, at the first heat-exchanging component during as evaporimeter, in the first heat-exchanging component, air and refrigerationBetween heat exchange be also countercurrent flow. By above-mentioned air-conditioning equipment, can realize in the first heat exchange groupPart is during as condenser and evaporimeter, and cold-producing medium wherein and air all carry out countercurrent flow, fromAnd improve the comprehensive heat exchange efficiency of heat exchanger as condenser and evaporimeter.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below will be to embodiment orIn description of the Prior Art, the accompanying drawing of required use is briefly described, apparently, belowAccompanying drawing in description is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain other according to these accompanying drawingsAccompanying drawing.
Fig. 1 is the structural representation of air-conditioning equipment of the prior art;
The structural representation of a kind of air-conditioning equipment that Fig. 2 provides for the embodiment of the present invention;
The structural representation of the another kind of air-conditioning equipment that Fig. 3 provides for the embodiment of the present invention;
The structural representation of the another kind of air-conditioning equipment that Fig. 4 provides for the embodiment of the present invention;
The structural representation of the another kind of air-conditioning equipment that Fig. 5 provides for the embodiment of the present invention;
Reference numeral:
101-compressor, 102-four-way makeshift valve, 103-restricting element, 104-the first heat exchange groupPart, the heat exchanger in 1041-the first heat-exchanging component, first in 1042-the first heat-exchanging component is singleTo valve, the second check valve in 1043-the first heat-exchanging component, in 1044-the first heat-exchanging componentThe 3rd check valve, the 4th check valve in 1045-the first heat-exchanging component, 1046-the first heat exchange groupThe first current divider in part, the second current divider in 1047-the first heat-exchanging component, 1047 '-Bourdon's tube in one heat-exchanging component, 105-the second heat-exchanging component, in 1051-the second heat-exchanging componentHeat exchanger, the first check valve in 1052-the second heat-exchanging component, in 1053-the second heat-exchanging componentThe second check valve, the 3rd check valve in 1054-the second heat-exchanging component, 10455-the second heat exchangeThe 4th check valve in assembly, the first current divider in 1056-the second heat-exchanging component, 1057-The second current divider in two heat-exchanging components, the bourdon's tube in the 1057 '-the second heat-exchanging component.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, to the technical side in the embodiment of the present inventionCase is clearly and completely described, and obviously, described embodiment is only one of the present inventionDivide embodiment, instead of whole embodiment. Based on the embodiment in the present invention, this area is generalLogical technical staff is not making the every other embodiment obtaining under creative work prerequisite,All belong to the scope of protection of the invention.
The embodiment of the present invention provides a kind of air-conditioning equipment, as shown in Figure 2, comprising: compressor101, four-way change-over valve 102, restricting element 103, and the port of export of described compressor 101 withThe first port of described four-way change-over valve 102 connects, the entrance point of described compressor 101 and instituteThe second port of stating four-way change-over valve 102 connects. Described air-conditioning equipment also comprises: the first heat exchangeAssembly 104 and the second heat-exchanging component 105; Wherein, described the first heat-exchanging component 104 comprises heat exchangeDevice 1041, the first check valve 1042, the second check valve 1043, the three check valves 1044, andThe 4th check valve 1045, the first current dividers 1046.
The 3rd port of the entrance point of described the first check valve 1042 and described four-way change-over valve 102Connect the import of the port of export of described the first check valve 1042 and described the first current divider 1046End connects. The entrance point of the port of export of described the first current divider 1046 and described heat exchanger 1041Connect, for the cold-producing medium of reception being branched to described heat exchanger 1041. Described heat exchanger 1041The port of export and the entrance point of described the second check valve 1043 and described the 3rd check valve 1044 connectConnect. The port of export of described the second check valve 1043 is connected with described restricting element 103. DescribedThe port of export of three check valves 1044 is connected with the 3rd port of described four-way change-over valve 102. DescribedThe entrance point of the 4th check valve 1045 is connected with described restricting element 103, the port of export and describedThe entrance point of one current divider 1046 connects; One end of described the second heat-exchanging component 105 and described fourThe 4th port of logical reversal valve 102 connects, and the other end is connected with described restricting element 103.
Need to illustrate, check valve is used for limiting cold-producing medium and carries in one direction. BeEnter from the entrance point of check valve, the port of export flows out.
It should be noted that, air-conditioning equipment has heat-production functions and has refrigerating function. First changesHot assembly 104 and the second heat-exchanging component 105 are respectively in air-conditioning equipment in indoor set and off-premises stationHeat-exchanging component. In the time that air-conditioning equipment is opened heat-production functions, if the first heat-exchanging component chambers 104The heat-exchanging component of interior machine, the heat-exchanging component that the second heat-exchanging component 105 is off-premises station, nowOne heat-exchanging component 104 is condenser, and the second heat-exchanging component 105 is evaporimeter. If the first heat exchangeThe heat-exchanging component that assembly 104 is off-premises station, the heat exchange that the second heat-exchanging component 105 is indoor setAssembly, now the first heat-exchanging component 104 is evaporimeter, the second heat-exchanging component 105 is condenser.In the time that air-conditioning equipment is opened refrigerating function, if the heat exchange group of the first heat-exchanging component 104 indoor setsPart, the heat-exchanging component that the second heat-exchanging component 105 is off-premises station, now the first heat-exchanging component 104For evaporimeter, the second heat-exchanging component 105 is condenser. If the first heat-exchanging component 104 is outdoorThe heat-exchanging component of machine, the heat-exchanging component that the second heat-exchanging component 105 is indoor set, now firstHeat-exchanging component 104 is condenser, and the second heat-exchanging component 105 is evaporimeter.
Each check valve in above-mentioned air-conditioning equipment in the first heat-exchanging component 104 and air-conditioning equipmentThe switching of each port of four-way change-over valve 102 and the first heat-exchanging component 104 as condenser orEvaporimeter is relevant.
Concrete, first of the port of export of described compressor 101 and described four-way change-over valve 102Port connects, and the high-temperature high-pressure refrigerant that compressor 101 produces like this sends by its port of exportTo four-way change-over valve 102. In the time that the first heat-exchanging component 104 is condenser, now air-conditioning equipment controlThe first port of four-way change-over valve 102 processed and the 3rd port open, and control the first check valve 1042And second check valve 1043 open, control the second port and the 4th port of four-way change-over valve 102Close, and control the 3rd check valve 1044 and the 4th check valve 1045 is closed. HTHPCold-producing medium is entering after four-way change-over valve 102, due to entrance point and the institute of the first check valve 1042The 3rd port of stating four-way change-over valve 102 connects, so the cold-producing medium of HTHP is by fourThe 3rd port of logical reversal valve 102 flows to the first check valve 1042. Going out of the first check valve 1042Mouth end is connected with the entrance point of described the first current divider 1046, so, the cold-producing medium of HTHPFlow to the first current divider 1046 by the port of export of the first check valve 1042. The first current divider 1046The port of export be connected with the entrance point of described heat exchanger 1041. Be first current divider 1046Isocon connects from the different entrance points of heat exchanger 1041 respectively, and the cold-producing medium of HTHP respectivelyDifferent isocons by the first current divider 1046 flow in heat exchanger 1041. At heat exchanger 1041In, the air entering in the cold-producing medium of HTHP and heat exchanger 1041 carries out heat exchange, heat exchangeAir in device 1041 is heated, and the cold-producing medium of HTHP is condensed into liquid cryogenic high pressureCold-producing medium. The port of export of heat exchanger 1041 and the second check valve 1043 and described the 3rd unidirectionalThe entrance point of valve 1044 connects. Now air-conditioning equipment control the 3rd check valve 1044 is closed,Liquid cryogenic high pressure cold-producing medium flows to the second check valve 1042, and by the second check valve 1042The port of export flow out. Because the port of export and the described restricting element 103 of the second check valve 1402 connectConnect, so liquid cryogenic high pressure cold-producing medium flows to restricting element 103. Due to restricting element103 have throttling action, and liquid cryogenic high pressure cold-producing medium is become to liquid low-temp low-pressure refrigerationAgent. And the 4th port of one end of the second heat-exchanging component 105 and described four-way change-over valve 102Connect, the other end is connected with described restricting element 103, now, and liquid low-temp low-pressure refrigerationAgent flows to the second heat-exchanging component 105 by restricting element 103. Liquid low-temperature low-pressure refrigerant existsIn the second heat-exchanging component, carry out heat exchange with the air that enters the second heat-exchanging component 105, absorbAirborne heat, becomes the cold-producing medium of gaseous state. Flow at liquid low-temperature low-pressure refrigerantWhen two heat-exchanging components 105, the first port of air-conditioning equipment control four-way change-over valve 102 and the 3rdPort shutdown, controls the second port and the 4th port open. Now the cold-producing medium of gaseous state is from secondAfter heat-exchanging component 105 flows out, enter by the 4th port of four-way change-over valve 102 and flow to four-wayReversal valve 102, and enter compressor 101 by the second port flow of four-way change-over valve 102.
At the first heat-exchanging component 104 during as evaporimeter, the commutation of now air-conditioning equipment control four-wayThe first port of valve and the 4th port open, control second port and the of four-way change-over valve 102Three port shutdowns. Air-conditioning equipment can first cut out each check valve in the first heat exchange group valency 104.The cold-producing medium of HTHP enters after four-way change-over valve 102, due to of four-way change-over valve 102Four ports are connected with the second heat exchange group valency 105, so the cold-producing medium of HTHP passes through four-wayThe 4th port of reversal valve 102 flows to the second heat-exchanging component 105. In the second heat-exchanging component 105 temperatureThe air entering in the cold-producing medium of high pressure and the second heat-exchanging component 105 carries out heat exchange, the second heat exchangeAir in assembly 105 is heated, and it is high that the cold-producing medium of HTHP is condensed into liquid low temperatureThe cold-producing medium of pressing. The cold-producing medium of liquid cryogenic high pressure passes through another of the second heat-exchanging component 105End flows out, because the other end of the second heat-exchanging component 105 is connected with restricting element 103, soThe cold-producing medium of liquid cryogenic high pressure flows to restricting element 103. Because restricting element 103 has jointStream effect, becomes liquid low-temperature low-pressure refrigerant by liquid cryogenic high pressure cold-producing medium. NowControl appliance can be opened the 3rd check valve 1044 and the 4th check valve 1045, and closes the first listTo valve 1042 and the second check valve 1043. Now, the cold-producing medium of liquid low-temp low-pressure flows out jointAfter fluid element 103, because the 4th check valve 1045 is opened, so, liquid low-temp low-pressureCold-producing medium flows to the 4th check valve 1045, and due to the port of export and of the 4th check valve 1045The entrance point of one current divider 1046 connects, so by the port of export liquid of the 4th check valve 1045The low-temp low-pressure of state flows to the first current divider 1046. And by the shunting of the first current divider 1046,Flow to heat exchanger 1041 by each distribution pipeline of the first current divider 1046 respectively. Now, liquidThe cold-producing medium of the low-temp low-pressure of state carries out heat exchange with the air entering in heat exchanger 1041, absorbsAirborne heat, becomes the cold-producing medium of gaseous state. Flow to and change at liquid low-temperature low-pressure refrigerantWhen hot device 1041, air-conditioning equipment can be controlled the first port and the 4th end of four-way change-over valve 102Mouth is closed, and controls the 3rd port and second port open of four-way change-over valve 102. The system of gaseous stateCryogen flows out by the port of export of heat exchanger 1041. Now due to the second closed check valve, the 3rdCheck valve 1044 is opened, so the cold-producing medium of gaseous state can only flow to the 3rd check valve 1044. Due toThe port of export of the 3rd check valve 1044 is connected with the 3rd port of four-way change-over valve 102, so,The cold-producing medium of gaseous state flows to from the 3rd port of four-way change-over valve 102 by the 3rd check valve 1044Four-way change-over valve 102, and enter compressor 101 by the second port flow of four-way change-over valve 102.
Like this, in the first heat-exchanging component of above-mentioned air-conditioning equipment, realizing cold energy or evaporation systemWhen cryogen, be all to control the entrance point of cold-producing medium in the first heat-exchanging component to flow to. Thereby ensureDuring as condenser or evaporimeter, between air and cold-producing medium, realize adverse current at the first heat-exchanging componentHeat exchange, thus heat exchanger is as the comprehensive heat exchange efficiency of condenser and evaporimeter.
Further, the knot of described the first heat-exchanging component 102 and described the second heat-exchanging component 105Structure is identical. Now, as shown in Figure 3, the second heat-exchanging component 105 comprises: heat exchanger 1051,The first check valve 1052, the second check valve 1053, the three check valve 1054, the four check valves1055, the first current dividers 1056.
Wherein, of one end of described the second heat-exchanging component 105 and described four-way change-over valve 102Four ports connect, and the other end is connected and comprises with described restricting element 103:
The entrance point of the first check valve 1052 in described the second heat-exchanging component 105, the 3rd unidirectionalThe port of export of valve 1054 is connected with the 4th port of described four-way change-over valve 1055, and described secondThe port of export of the second check valve 1053 in heat-exchanging component 105 and entering of the 4th check valve 1055Mouth end is connected with described restricting element 103.
Concrete, entrance point and the four-way of the first check valve 1052 in the second heat-exchanging component 105The 4th port of reversal valve 102 connects, the first check valve 1052 in the second heat-exchanging component 105The port of export be connected with the entrance point of the first current divider 1056 in the second heat-exchanging component 105. TheIn the port of export of the first current divider 1056 in two heat-exchanging components 105 and the second heat-exchanging component 105Heat exchanger 1051 entrance point connect. Heat exchanger 1051 in the second heat-exchanging component 105The entrance point of the second check valve 1053 in the port of export and the second heat-exchanging component 105 and the 3rd unidirectionalThe entrance point of valve 1054 connects. Going out of the second check valve 1053 in the second heat-exchanging component 105Mouth end is connected with restricting element 103. The outlet of the 3rd check valve in the second heat-exchanging component 105End is connected with the 4th port of four-way change-over valve 102. In the second heat-exchanging component 105 the 4th is singleBe connected in the port of export and the second heat-exchanging component 105 with restricting element to valve 1054 entrance pointsThe entrance point of one current divider 1056 connects.
It should be noted that, in the time that the first heat-exchanging component 104 is condenser, the second heat-exchanging component105 is evaporimeter, work when its course of work can be evaporimeter with reference to the first heat-exchanging component 104Process. In the time that the first heat-exchanging component 104 is evaporimeter, the second heat-exchanging component 105 is condenser,Course of work when its course of work can be condenser with reference to the first heat-exchanging component 104, at thisRepeat no more.
Further, the port of export of heat exchanger 1041 and described described in the first heat-exchanging component 104The entrance point of two check valves 1043 and described the 3rd check valve 1044 connects and comprises: described heat exchangeThe port of export of device 1041 by the second current divider 1047 and described the second check valve 1043 and described inThe entrance point of the 3rd check valve 1044 connects, shown in figure 3.
That is to say, each port of export of the first heat-exchanging component 104 heat exchangers 1041 is respectively withOne end distribution pipeline of two current dividers 1047 connects, and the other end pipeline of the second current divider and instituteThe entrance point of stating the second check valve 1043 and described the 3rd check valve 1044 connects.
Further, the port of export and second of the heat exchanger 1051 in the second heat-exchanging component 105 changesDescribed the second check valve 1053 in hot assembly 105 and the import of described the 3rd check valve 1054End connects and comprises: the port of export of the heat exchanger 1051 in the second heat-exchanging component 105 is by second pointDescribed the second check valve 1053 and the described the 3rd in stream device 1057 and the second heat-exchanging component 105The entrance point of check valve 1054 connects.
Optionally, described the first current divider 1046, the second shuntings in the first heat-exchanging component 104Device 1047 comprises: venturi type current divider.
The second heat-exchanging component 105 104 in described the first current divider 1056, the second current dividers1057 comprise: venturi type current divider.
Or, described the first current divider 1046, the second current dividers in the first heat-exchanging component 1041047 comprise: full-liquid type current divider.
The second heat-exchanging component 105 104 in described the first current divider 1056, the second current dividers1057 comprise: full-liquid type current divider.
It should be noted that, the first current divider in the first heat-exchanging component and the second heat-exchanging component andThe second current divider can be different. Certainly, can also be other current divider, the present invention coupleThis does not limit.
Or, the port of export of heat exchanger 1041 and described second single described in the first heat-exchanging component 104Connect and comprise to the entrance point of valve 1043 and described the 3rd check valve 1044: described heat exchanger 1041The port of export by bourdon's tube 1047 ' and described the second check valve 1043 and described the 3rd check valve1044 entrance point connects, as shown in Figure 4.
In the port of export of the heat exchanger 1051 in the second heat-exchanging component 105 and the second heat-exchanging componentThe entrance point of described the second check valve 1053 and described the 3rd check valve 1054 connects and comprises: theThe port of export of the heat exchanger 1051 in two heat-exchanging components 105 changes by bourdon's tube 1057 ' and secondDescribed the second check valve 1053 in hot assembly 105 and the import of described the 3rd check valve 1054End connects, shown in figure 4.
It should be noted that the outlet of the heat exchanger in the first heat-exchanging component and the second heat-exchanging componentThe entrance point connected mode of end and described the second check valve and described the 3rd check valve, can also beOther modes, the present invention does not limit this.
Further, described the first check valve 1042, the second check valve 1043, the three check valves1044 and the 4th check valve 1045 comprise: mechanical check valve.
Further, the first check valve 1052, the second check valves in the second heat-exchanging component 1051053, the three check valves 1054 and the 4th check valve 1055 can be mechanical check valves.
Or, described the first check valve 1042, the second check valve 1043, the three check valves 1044And the 4th check valve 1045 comprise: magnetic valve, as shown in Figure 5.
Further, the first check valve 1052, the second check valves in the second heat-exchanging component 1051053, the three check valves 1054 and the 4th check valve 1055 can be magnetic valves, with reference to figure 5Shown in.
It should be noted that, the first check valve in the first heat-exchanging component and the second heat-exchanging component,The second check valve, the 3rd check valve, the 4th check valve can also be that other are for limiting cold-producing mediumThe assembly of carrying in one direction, the present invention does not limit this.
It should be noted that the first check valve in the first heat-exchanging component, the second check valve,The first check valve in three check valves, the 4th check valve and the second heat-exchanging component, the second check valve,The 3rd check valve, the 4th check valve can be different, and for example, first in the first heat-exchanging component is singleBe mechanical check valve to valve, the second check valve, the 3rd check valve, the 4th check valve, second changesThe first check valve in hot assembly, the second check valve, the 3rd check valve, the 4th check valve are electricityMagnet valve. Certainly the first check valve in the first heat-exchanging component, the second check valve, the 3rd unidirectional,Valve, the 4th check valve also can be different. The first check valve, in the second heat-exchanging componentTwo check valves, the 3rd check valve, the 4th check valve also can be different. The present invention is not to thisLimit.
It should be noted that, the restricting element in the embodiment of the present invention is bidirectional throttling device.
Optionally, described restricting element 103 comprises: double capillary throttling arrangement. Or, instituteStating restricting element 103 comprises: electric expansion valve. Or described restricting element 103 comprises:Heating power expansion valve.
It should be noted that, described restricting element can also be other bidirectional throttling devices, thisBright this is not limited.
The embodiment of the present invention provides a kind of air-conditioning equipment, comprising: compressor, and four-way change-over valve,Restricting element, the first heat-exchanging component and the second heat-exchanging component, wherein, described the first heat-exchanging componentComprise heat exchanger, the first check valve, the second check valve, the 3rd check valve, and the 4th check valve,Current divider, the entrance point of the first check valve is connected with the 3rd port of four-way change-over valve, and first is singleThe port of export to valve is connected with the entrance point of the first current divider, the port of export of the first current divider with changeThe entrance point of hot device connects, for the cold-producing medium of reception is branched to described heat exchanger, heat exchangerThe port of export be connected with the entrance point of the second check valve and the 3rd check valve, the going out of the second check valveMouth end is connected with restricting element, the 3rd port of the port of export of the 3rd check valve and four-way change-over valveConnect, the entrance point of the 4th check valve is connected with restricting element, the import of the port of export and current dividerEnd connects; One end of the second heat-exchanging component is connected with the 4th port of four-way change-over valve, the other endBe connected with restricting element. Like this, at the first heat-exchanging component during as condenser, the first check valveThe second check valve is opened, the 3rd check valve, the 4th closed check valve. Now, compressor is with in advanceIf frequency operation, the cold-producing medium of generation HTHP, by the first port flow of four-way change-over valveEnter four-way change-over valve, the 3rd port open of four-way change-over valve, the second port and the 4th port closeClose, so the cold-producing medium of HTHP flows to the first check valve by the entrance point of the first check valve,And flow to the entrance point of the first current divider by the port of export of the first check valve. The first current divider willThe cold-producing medium of HTHP branches to each entrance point of heat exchanger. The cold-producing medium of HTHP is logicalEach entrance point of crossing heat exchanger flows to after heat exchanger, carries out heat exchange with the air in heat exchanger,The cold-producing medium of HTHP is condensed into the cold-producing medium of liquid cryogenic high pressure. Now, liquidThe cold-producing medium of cryogenic high pressure flows out by the port of export of heat exchanger. Due to the 3rd closed check valve,The second check valve is opened, so the cold-producing medium of liquid cryogenic high pressure is by the outlet of heat exchangerEnd flows to the second check valve, and due to the 4th closed check valve, so liquid low temperature is highThe cold-producing medium of pressing flows to restricting element by the second check valve, and then enters the second heat-exchanging component.Now, the first heat-exchanging component is during as condenser, and the heat exchange between air and cold-producing medium is that adverse current is changedHeat.
Be evaporimeter at the first heat-exchanging component, the first check valve, the second closed check valve, the 3rdCheck valve, the 4th check valve is opened. Now compressor moves with predeterminated frequency, produces high temperature highThe cold-producing medium of pressing, flows to four-way change-over valve by the first port of four-way change-over valve, four-way commutationThe 4th port open of valve, the second port and the 3rd port shutdown, so the refrigeration of HTHPAgent flows to the second heat-exchanging component, by with the second heat-exchanging component in air carry out after heat exchange,The cold-producing medium of HTHP becomes the cold-producing medium of liquid cryogenic high pressure in the second heat-exchanging component,And the cold-producing medium of liquid cryogenic high pressure flows to restricting element, because restricting element 4 has throttlingEffect, liquid cryogenic high pressure cold-producing medium is become to the cold-producing medium of liquid low-temp low-pressure. LiquidThe refrigeration of the low-temp low-pressure of state is entered the port of export by restricting element, flows to the 4th check valve, andAnd the refrigeration of liquid low-temp low-pressure flows to the first current divider by the 4th check valve. The first shuntingDevice branches to the cold-producing medium of liquid low-temp low-pressure each entrance point of heat exchanger. Liquid is lowThe cold-producing medium of temperature low pressure flows to after heat exchanger by each entrance point of heat exchanger, in heat exchangerAir carry out heat exchange, the cold-producing medium of liquid low-temp low-pressure absorbs the heat of air, by liquidThe cold-producing medium of the cryogenic high pressure of state becomes the cold-producing medium of gaseous state. Now, the cold-producing medium of gaseous state passes throughThe port of export of heat exchanger flows out. Due to the second closed check valve, the 3rd check valve is opened, soThe cold-producing medium of gaseous state flow to the 3rd port of four-way change-over valve by the 3rd check valve. Due to firstClosed check valve, so the cold-producing medium of gaseous state flows to four-way by the 3rd port of four-way change-over valveReversal valve, and now the first port and the 4th port shutdown of four-way change-over valve, the second portOpen, so the cold-producing medium of gaseous state enters compressor by the second port flow of four-way change-over valve. ThisSample, at the first heat-exchanging component during as evaporimeter, in the first heat-exchanging component, air and refrigerationBetween heat exchange be also countercurrent flow. By above-mentioned air-conditioning equipment, can realize in the first heat exchange groupPart is during as condenser and evaporimeter, and cold-producing medium wherein and air all carry out countercurrent flow, fromAnd improve the comprehensive heat exchange efficiency of heat exchanger as condenser and evaporimeter.
Finally it should be noted that: above embodiment is only in order to technical scheme of the present invention to be described, andNon-to its restriction; Although the present invention is had been described in detail with reference to previous embodiment, abilityThe those of ordinary skill in territory is to be understood that: the skill that it still can be recorded aforementioned each embodimentArt scheme is modified, or part technical characterictic is wherein equal to replacement; And these are repaiiedChange or replace, not making the essence of appropriate technical solution depart from various embodiments of the present invention technical sideThe spirit and scope of case.
Claims (11)
1. an air-conditioning equipment, comprises compressor, four-way change-over valve, restricting element, described pressureThe port of export of contracting machine is connected with the first port of described four-way change-over valve, the import of described compressorEnd is connected with the second port of described four-way change-over valve, it is characterized in that, described air-conditioning equipment alsoComprise: the first heat-exchanging component and the second heat-exchanging component; Wherein, described the first heat-exchanging component comprisesHeat exchanger, the first check valve, the second check valve, the 3rd check valve, and the 4th check valve, theOne current divider;
The entrance point of described the first check valve is connected with the 3rd port of described four-way change-over valve, instituteThe port of export of stating the first check valve is connected with the entrance point of described the first current divider;
The port of export of described the first current divider is connected with the entrance point of described heat exchanger, for connecingThe cold-producing medium of receiving branches to described heat exchanger;
The import of the port of export of described heat exchanger and described the second check valve and described the 3rd check valveEnd connects;
The port of export of described the second check valve is connected with described restricting element;
The port of export of described the 3rd check valve is connected with the 3rd port of described four-way change-over valve;
The entrance point of described the 4th check valve is connected with described restricting element, the port of export and describedThe entrance point of one current divider connects;
One end of described the second heat-exchanging component is connected with the 4th port of described four-way change-over valve, anotherOne end is connected with described restricting element.
2. air-conditioning equipment according to claim 1, is characterized in that, described the first heat exchangeAssembly is identical with the structure of described the second heat-exchanging component;
Wherein, the 4th port of one end of described the second heat-exchanging component and described four-way change-over valve connectsConnect, the other end is connected and comprises with described restricting element:
The entrance point of the first check valve in described the second heat-exchanging component, the outlet of the 3rd check valveEnd is connected with the 4th port of described four-way change-over valve, and second in described the second heat-exchanging component is singleBe connected with described restricting element to the port of export of valve and the entrance point of the 4th check valve.
3. air-conditioning equipment according to claim 1 and 2, is characterized in that, described heat exchangeThe port of export of device is connected and comprises with the entrance point of described the second check valve and described the 3rd check valve:
The port of export of described heat exchanger is by the second current divider and described the second check valve and described theThe entrance point of three check valves connects.
4. air-conditioning equipment according to claim 1 and 2, is characterized in that, described heat exchangeThe port of export of device is connected and comprises with the entrance point of described the second check valve and described the 3rd check valve:
The port of export of described heat exchanger is by bourdon's tube and described the second check valve and described the 3rd listEntrance point to valve connects.
5. air-conditioning equipment according to claim 1 and 2, is characterized in that, described firstCheck valve, the second check valve, the 3rd check valve and the 4th check valve comprise: mechanical check valve.
6. air-conditioning equipment according to claim 1 and 2, is characterized in that, described firstCheck valve, the second check valve, the 3rd check valve and the 4th check valve comprise: magnetic valve.
7. air-conditioning equipment according to claim 3, its feature exists, described the first current divider,The second current divider comprises: venturi type current divider.
8. air-conditioning equipment according to claim 3, its feature exists, described the first current divider,The second current divider comprises: full-liquid type current divider.
9. air-conditioning equipment according to claim 1 and 2, is characterized in that, described throttlingElement comprises: double capillary throttling arrangement.
10. air-conditioning equipment according to claim 1 and 2, is characterized in that, described jointFluid element comprises: electric expansion valve.
11. air-conditioning equipments according to claim 1 and 2, is characterized in that, described jointFluid element comprises: heating power expansion valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410629004.6A CN105588377A (en) | 2014-11-10 | 2014-11-10 | Air conditioning equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410629004.6A CN105588377A (en) | 2014-11-10 | 2014-11-10 | Air conditioning equipment |
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| CN105588377A true CN105588377A (en) | 2016-05-18 |
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