CN203454464U - Heat pump system - Google Patents

Heat pump system Download PDF

Info

Publication number
CN203454464U
CN203454464U CN201320417659.8U CN201320417659U CN203454464U CN 203454464 U CN203454464 U CN 203454464U CN 201320417659 U CN201320417659 U CN 201320417659U CN 203454464 U CN203454464 U CN 203454464U
Authority
CN
China
Prior art keywords
heat exchanger
valve
indoor heat
expansion valve
electric expansion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201320417659.8U
Other languages
Chinese (zh)
Inventor
杨元涛
许永锋
熊美兵
马熙华
梁泽坤
胡伟龙
杨胜
任林行
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Midea HVAC Equipment Co Ltd
Original Assignee
Guangdong Midea HVAC Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Midea HVAC Equipment Co Ltd filed Critical Guangdong Midea HVAC Equipment Co Ltd
Priority to CN201320417659.8U priority Critical patent/CN203454464U/en
Application granted granted Critical
Publication of CN203454464U publication Critical patent/CN203454464U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The utility model discloses a heat pump system which comprises a compressor, a four-way valve, an outdoor heat exchanger, an indoor heat exchanger, an electronic expansion valve and an on-off valve. The electronic expansion valve is connected between the outdoor heat exchanger and the indoor heat exchanger in series. The on-off valve is connected between the electronic expansion valve and the indoor heat exchanger in series. According to the heat pump system, by arranging the on-off valve which can control connection and disconnection between the electronic expansion valve and the indoor heat exchanger, the opening degree of the electronic expansion valve can be kept, and closing movement with the range larger than the current opening degree is not needed. Therefore, the service life of the electronic expansion valve can be prolonged, noises can be lowered, and the using comfort degree of users can be improved. Meanwhile, by means of the heat pump system, condensation and water accumulation of the indoor heat exchanger and liquid impact on the compressor can be prevented, and the reliability of the system can be improved.

Description

Heat pump
Technical field
The utility model relates to field of household appliances, in particular to a kind of heat pump.
Background technology
It is more and more extensive that electric expansion valve is used in field of air conditioning.But when air-conditioner shutdown or standby, electric expansion valve also must be closed immediately, and for electric expansion valve can be shut completely, the amplitude of generally closing valve events can surpass current aperture in right amount, can cause certain damage to electric expansion valve like this, shorten the service life of electric expansion valve.Meanwhile, electric expansion valve switch valve action can produce certain mechanicalness noise, and particularly in valve body aperture hour, flowing of refrigerant also can form howling, reduced the comfort level that user uses.
In multiple central air conditioner device, certain indoor heat exchanger power down quits work, if refrigerant passage is not closed immediately, refrigerant can flow into indoor heat exchanger, causes indoor heat exchanger condensation accumulated water, also may cause compressor liquid hit phenomenon, and the stability of a system is poor.
Utility model content
The utility model is intended at least solve one of technical problem existing in prior art.For this reason, an object of the present utility model is to propose a kind of heat pump, and this heat pump can make electric expansion valve longer service life wherein, and noise is less.
According to heat pump of the present utility model, comprising: compressor, compressor has air entry and exhaust outlet; Cross valve, cross valve has air-breathing interface, exhaust port, outdoor heat exchanger interface and indoor heat exchanger interface, and wherein the exhaust outlet of compressor and the exhaust port of cross valve are connected, and the air entry of compressor is connected with the air-breathing interface of cross valve; Outdoor heat exchanger, one end of outdoor heat exchanger is connected with the outdoor heat exchanger interface of cross valve; Indoor heat exchanger, the two ends of indoor heat exchanger are connected with the other end of outdoor heat exchanger and the indoor heat exchanger interface of cross valve respectively; Electric expansion valve, electric expansion valve is connected between outdoor heat exchanger and indoor heat exchanger; On-off valve, on-off valve is connected between electric expansion valve and indoor heat exchanger.
According to heat pump of the present utility model, by the on-off valve that can control break-make between electric expansion valve and indoor heat exchanger is set, can make electric expansion valve keep aperture, do not need the amplitude of carrying out to surpass the closing motion of current aperture, thereby can extend the service life of electric expansion valve, can also reduce noise, improve the comfort level that user uses.Meanwhile, according to the heat pump of the utility model embodiment, can also prevent indoor heat exchanger condensation accumulated water and compressor generation liquid hit phenomenon, improve system reliability.
In addition, according to heat pump of the present utility model, also there is following additional technical feature:
On-off valve is magnetic valve.
On-off valve has two kinds of mode of operations: upper power mode and power-down mode; When indoor heat exchanger refrigeration or while heating work, on-off valve is in upper power mode, conducting between electric expansion valve and indoor heat exchanger; When indoor heat exchanger standby or while not working, on-off valve, in power-down mode, cuts off not conducting between electric expansion valve and indoor heat exchanger.
According to heat pump of the present utility model, also comprise gas-liquid separator.
Indoor heat exchanger, electric expansion valve, on-off valve are a plurality of and corresponding one by one respectively.
Between exhaust outlet and exhaust port, be also provided with oil eliminator.
Outdoor heat exchanger is condenser.
Indoor heat exchanger is evaporimeter.
Additional aspect of the present utility model and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage accompanying drawing below combination obviously and is easily understood becoming the description of embodiment, wherein:
Fig. 1 is according to the schematic diagram of the heat pump of the utility model embodiment.
The specific embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, only 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 ", " longitudinally ", " laterally ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, except as otherwise noted, the implication of " a plurality of " is two or more.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand the concrete meaning of above-mentioned term in the utility model.
Below with reference to Fig. 1, describe according to the heat pump 100 of the utility model embodiment.
Heat pump 100 according to the utility model embodiment, comprising: compressor 6, cross valve 7, outdoor heat exchanger 8, indoor heat exchanger 10, electric expansion valve 1 and on-off valve 2.
Wherein compressor 6 has air entry 61 and exhaust outlet 62.Refrigerant in heat pump 100 is sucked into through air entry 61 in the compression chamber of compressor 6 and is compressed in this compression chamber, becomes the cold media gas of HTHP, then discharges compressors 6 by the exhaust outlet 62 of compressor 6.
As shown in Figure 1, cross valve 7 has air-breathing interface 74, exhaust port 72, outdoor heat exchanger interface 71 and indoor heat exchanger interface 73.Cross valve 7 generally can have two kinds of mode of operations: power-down mode and upper power mode.For example, when cross valve 7 is during in power-down mode, outdoor heat exchanger interface 71 and exhaust port 72 are communicated with, and indoor heat exchanger interface 73 and air-breathing interface 74 are communicated with.When cross valve 7 is during in upper power mode, exhaust port 72 and indoor heat exchanger interface 73 are communicated with, and outdoor heat exchanger interface 71 and air-breathing interface 74 are communicated with.
As shown in Figure 1, the exhaust outlet 62 of compressor 6 is connected with the exhaust port 72 of cross valve 7, need explanation, here exhaust outlet 62 is connected and should makes broad understanding with exhaust port 72, can be to be not directly connected, for example, in an embodiment of the present utility model, between exhaust outlet 62 and exhaust port 72, also be provided with oil eliminator, that is to say, the exhaust outlet 62 of compressor 6 is to be indirectly connected with the exhaust port 72 of cross valve 7 by oil eliminator.Wherein, oil eliminator has been prior art, is not therefore just described in detail here.
With reference to Fig. 1, one end of outdoor heat exchanger 8 is connected with the outdoor heat exchanger interface 71 of cross valve 7.Wherein, outdoor heat exchanger 8 can be condenser.The two ends of indoor heat exchanger 10 are connected with the other end of outdoor heat exchanger 8 and the indoor heat exchanger interface 73 of cross valve 7 respectively.Wherein, indoor heat exchanger 10 can be evaporimeter.
According to heat pump 100 of the present utility model, also can comprise gas-liquid separator 3.Gas-liquid separator 3 has import 31 and outlet 32, and import 31 is connected with the air-breathing interface 74 of cross valve 7, exports 32 and is connected with the air entry 61 of compressor 6.
Be understandable that, gas-liquid separator 3, outdoor heat exchanger 8 and indoor heat exchanger 10 are prior art and are well known for ordinary skill in the art, and therefore describe in detail no longer one by one here.
As shown in Figure 1, electric expansion valve 1 is connected between outdoor heat exchanger 8 and indoor heat exchanger 10, that is to say, one end of electric expansion valve 1 is connected with outdoor heat exchanger 8, and the other end of electric expansion valve 1 is connected with indoor heat exchanger 10.Electric expansion valve 1 can control room external heat exchanger 8 and indoor heat exchanger 10 between cold medium flux.
Wherein on-off valve 2 is connected between electric expansion valve 1 and indoor heat exchanger 10, and for example, on-off valve 2 can be magnetic valve.That is to say, one end of on-off valve 2 is connected with electric expansion valve 1, and the other end of on-off valve 2 is connected with indoor heat exchanger 10.On-off valve 2 can be controlled the break-make between electric expansion valve 1 and indoor heat exchanger 10 like this, can make electric expansion valve 1 keep former aperture, electric expansion valve 1 no longer needs the amplitude of carrying out to surpass the closing motion of current aperture, thereby can extend the service life of electric expansion valve 1, can reduce noise, improve the comfort level that user uses simultaneously.
On-off valve has two kinds of mode of operations: upper power mode and power-down mode.
When indoor heat exchanger refrigeration or while heating work, on-off valve is in upper power mode, conducting between electric expansion valve and indoor heat exchanger; When indoor heat exchanger standby or while not working, on-off valve is in power-down mode, between electric expansion valve and indoor heat exchanger, cut off not conducting, now electric expansion valve 1 can keep aperture size, thereby continues to send very large noise in the time of can extending the service life of electric expansion valve 1 and can avoid electric expansion valve 1 to regulate aperture size.
Heat pump 100 of the present utility model has refrigeration mode, refrigeration standby mode, heating mode and heating standby pattern.Below the refrigeration of heat pump 100 and heating operation are described simply.
When heat pump 100 is during in refrigeration mode, cross valve 7 is in power-down mode, electric expansion valve 1 is controlled automatically, electric-opening on on-off valve 2, the refrigerant that compressor 6 is discharged passes through exhaust port 72, outdoor heat exchanger interface 71, outdoor heat exchanger 8 successively, electric expansion valve 1, on-off valve 2, indoor heat exchanger 10, indoor heat exchanger interface 73, air-breathing interface 74, gas-liquid separator 3, return compressor 6 from air entry 61 again, completes kind of refrigeration cycle one time.
When heat pump 100, that is to say during standby in refrigeration, heat pump 100 stops refrigeration and in holding state, now cross valve 7 is in power-down mode, and electric expansion valve 1 keeps aperture size, and on-off valve 2 power down are closed.Electric expansion valve 1 does not need the amplitude of carrying out to surpass the closing motion of current aperture and only need to keep former aperture size like this, thereby continues to send very large noise when can increase the service life and can avoid electric expansion valve 1 to regulate aperture size.
When heat pump 100 is during in heating mode, cross valve 7 is in upper power mode, electric expansion valve 1 is controlled automatically, electric-opening on on-off valve 2, the refrigerant that compressor 6 is discharged passes through successively exhaust port 72, indoor heat exchanger interface 73, indoor heat exchanger 10, on-off valve 2, electric expansion valve 1, outdoor heat exchanger 8, outdoor heat exchanger interface 71, air-breathing interface 74, gas-liquid separator 3, from air entry 61, returns compressor 6, completes and once heats circulation.
When heat pump 100 is during in heating standby, that is to say, heat pump 100 stops heating and in holding state, now cross valve 7 is in power-down mode, and electric expansion valve 1 keeps aperture size, and on-off valve 2 power down are closed.Electric expansion valve 1 does not need the amplitude of carrying out to surpass the closing motion of current aperture and only need to keep former aperture size like this, thereby continues to send very large noise when can increase the service life and can avoid electric expansion valve 1 to regulate aperture size.
According to the heat pump 100 of the utility model embodiment, by the on-off valve 2 that can control break-make between electric expansion valve 1 and indoor heat exchanger 10 is set, can make electric expansion valve 1 keep aperture, do not need the amplitude of carrying out to surpass the closing motion of current aperture, thereby can extend the service life of electric expansion valve 1, can also reduce noise, improve the comfort level that user uses.Meanwhile, according to the heat pump 100 of the utility model embodiment, can also prevent that indoor heat exchanger 10 condensation accumulated waters and compressor 6 from liquid hit phenomenon occurring, and improves system reliability.
In an embodiment of the present utility model, indoor heat exchanger 10, electric expansion valve 1, on-off valve 2 can be a plurality of and corresponding one by one respectively.That is to say and between each indoor heat exchanger 10 and outdoor heat exchanger 8, be provided with electric expansion valve 1 and on-off valve 2.When some indoor heat exchanger 10 power down are not worked, electric expansion valve 1 can keep aperture like this, and on-off valve 2 can power down be closed refrigerant passage, can not cause so the interior condensation accumulated water of indoor heat exchanger 10 of power down, can also avoid compressor 6 liquid hit phenomenons.
In the description of this description, the description of reference term " embodiment ", " some embodiment ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present utility model and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claim and equivalent thereof.

Claims (8)

1. a heat pump, is characterized in that, comprising:
Compressor, described compressor has air entry and exhaust outlet;
Cross valve, described cross valve has air-breathing interface, exhaust port, outdoor heat exchanger interface and indoor heat exchanger interface, the exhaust outlet of wherein said compressor is connected with the exhaust port of described cross valve, and the air entry of described compressor is connected with the air-breathing interface of described cross valve;
Outdoor heat exchanger, one end of described outdoor heat exchanger is connected with the outdoor heat exchanger interface of described cross valve;
Indoor heat exchanger, the two ends of described indoor heat exchanger are connected with the other end of described outdoor heat exchanger and the indoor heat exchanger interface of described cross valve respectively;
Electric expansion valve, described electric expansion valve is connected between described outdoor heat exchanger and described indoor heat exchanger;
On-off valve, described on-off valve is connected between described electric expansion valve and described indoor heat exchanger.
2. heat pump according to claim 1, is characterized in that, described on-off valve is magnetic valve.
3. heat pump according to claim 1, is characterized in that, described on-off valve has two kinds of mode of operations: upper power mode and power-down mode; When described indoor heat exchanger refrigeration or while heating work, described on-off valve is in upper power mode, conducting between described electric expansion valve and described indoor heat exchanger; When described indoor heat exchanger standby or while not working, described on-off valve, in power-down mode, cuts off not conducting between described electric expansion valve and described indoor heat exchanger.
4. heat pump according to claim 1, is characterized in that, also comprises gas-liquid separator.
5. heat pump according to claim 1, is characterized in that, described indoor heat exchanger, described electric expansion valve, described on-off valve are a plurality of and corresponding one by one respectively.
6. heat pump according to claim 1, is characterized in that, is also provided with oil eliminator between described exhaust outlet and exhaust port.
7. heat pump according to claim 1, is characterized in that, described outdoor heat exchanger is condenser.
8. heat pump according to claim 1, is characterized in that, described indoor heat exchanger is evaporimeter.
CN201320417659.8U 2013-07-12 2013-07-12 Heat pump system Active CN203454464U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320417659.8U CN203454464U (en) 2013-07-12 2013-07-12 Heat pump system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320417659.8U CN203454464U (en) 2013-07-12 2013-07-12 Heat pump system

Publications (1)

Publication Number Publication Date
CN203454464U true CN203454464U (en) 2014-02-26

Family

ID=50134332

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320417659.8U Active CN203454464U (en) 2013-07-12 2013-07-12 Heat pump system

Country Status (1)

Country Link
CN (1) CN203454464U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104964343A (en) * 2015-06-12 2015-10-07 广东美的暖通设备有限公司 Device and method for improving running reliability of compressor
CN106766420A (en) * 2016-11-28 2017-05-31 广东美的暖通设备有限公司 Multiple on-line system and its control method for heating the anti-hydrops of interior machine
CN107621058A (en) * 2017-08-29 2018-01-23 珠海格力电器股份有限公司 Indoor-unit cooling-medium control device and its control method, indoor set and air-conditioning system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104964343A (en) * 2015-06-12 2015-10-07 广东美的暖通设备有限公司 Device and method for improving running reliability of compressor
CN106766420A (en) * 2016-11-28 2017-05-31 广东美的暖通设备有限公司 Multiple on-line system and its control method for heating the anti-hydrops of interior machine
CN106766420B (en) * 2016-11-28 2019-10-01 广东美的暖通设备有限公司 Multi-line system and its heating in the anti-hydrops of machine control method
CN107621058A (en) * 2017-08-29 2018-01-23 珠海格力电器股份有限公司 Indoor-unit cooling-medium control device and its control method, indoor set and air-conditioning system
CN107621058B (en) * 2017-08-29 2020-03-10 珠海格力电器股份有限公司 Indoor unit refrigerant control device and control method thereof, indoor unit and air conditioning system

Similar Documents

Publication Publication Date Title
CN103836773A (en) Multi-split air conditioning system and shutdown noise control method thereof
CN203454464U (en) Heat pump system
CN105004109A (en) Six-way valve and cold-warm-type air conditioner with same
CN105333599A (en) Air replenishing and enthalpy increasing air conditioning system
CN103604241A (en) Air conditioner and method for controlling same
CN201373632Y (en) Multi-connected air-conditioning system
CN204901949U (en) Air conditioner
CN203501527U (en) Air conditioning system
CN205119552U (en) Air -conditioner
CN102519171B (en) Multi-functional multi-connected air conditioning unit
CN203980735U (en) Air-conditioner
CN102135302A (en) Machine room energy-saving heat radiating system and control method thereof
CN104482685A (en) Cooling/warming air conditioner
CN204718206U (en) Six-way valve and there is the heating and air conditioner of this six-way valve
CN203615642U (en) Multi-union central air-conditioner
CN204313515U (en) Heating and air conditioner
CN211476194U (en) Refrigerant type circulating fluorine pump and compressor integrated air conditioner system
CN105020936A (en) Air-conditioner heat pump hot water system
CN102338521A (en) Supercooling liquid impact preventing device of air cooling heat pump air conditioner
CN104422208A (en) Air conditioning system
CN204787417U (en) Heat -pump air conditioning system
CN203731735U (en) Screw-type air-cooled heat pump air conditioning unit
CN203501344U (en) Air conditioning system
CN202254537U (en) Air conditioner and variable throttling device thereof
CN203908088U (en) Refrigerating system and air conditioner

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant