CN103047727A - Heat pump system - Google Patents
Heat pump system Download PDFInfo
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- CN103047727A CN103047727A CN2013100288283A CN201310028828A CN103047727A CN 103047727 A CN103047727 A CN 103047727A CN 2013100288283 A CN2013100288283 A CN 2013100288283A CN 201310028828 A CN201310028828 A CN 201310028828A CN 103047727 A CN103047727 A CN 103047727A
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Abstract
The invention discloses a heat pump system which comprises a compressor, a four-way valve, an indoor machine, an outdoor machine, first and second throttling devices, a first one-way valve, a second one-way valve as well as first to fourth switching valves, wherein the compressor is connected with first and third valve ports of the four-way valve; a first opening of the indoor machine is connected with a second opening of the four-way valve, and a first opening of the first throttling device is connected with a second opening of the indoor machine; the first switching valve is connected between a fourth valve port of the four-way valve and a second opening of the outdoor machine, and the second switching valve is connected between the fourth valve port of the four-way valve and a first opening of the outdoor machine; and the third switching valve is connected between a second opening of the second throttling device and the second opening of the outdoor machine, and the fourth switching valve is connected between the second opening of the second throttling device and the first opening of the outdoor machine. According to the heat pump system provided by the invention, the defrostation is rapid, the fluctuation of the heating effect of the indoor machine is small, and the comfort level is high.
Description
Technical field
The present invention relates to a kind of heat pump,
Background technology
Existing heat pump mainly comprise indoor set, off-premises station, cross valve and two heating power expansion valves and respectively with two two check valves that heating power expansion valve is in parallel, heating, realizing separately function by different circulations in defrosting and the refrigerating operaton.After heat pump for example heats circular flow a period of time in the winter time, can accumulate frost layer on the off-premises station, affect heat exchange efficiency, so that the performance degradation of heat pump.Heat pump need to carry out defrost cycle after frost layer is accumulated to a certain degree.
In the defrost cycle of existing heat pump, warm refrigerant enters off-premises station from common refrigerant outlet at the off-premises station that heats circulation time, but for off-premises station, the frosting that heats circulation is often assembled more in the import of cold-producing medium, therefore can't frosting can't melt fast, defrosting time is long.Defrosting time is longer, heats the circulation dwell time longer, and fluctuations in indoor temperature is larger, and the heating efficiency of heat pump is lower.
Summary of the invention
The present invention is intended to one of solve the problems of the technologies described above at least.For this reason, one object of the present invention be to propose a kind of can quickly defrosting, reduce the heat pump that heats fluctuation and raise the efficiency.
According to heat pump of the present invention, comprise: compressor, cross valve, indoor set, off-premises station, the first and second throttling arrangements, first check valve in parallel with described first throttle device, and second check valve in parallel with described the second throttling arrangement, first to fourth transfer valve, described cross valve has first to fourth valve port, and first of described compressor and described cross valve links to each other with the 3rd valve port; In described indoor set and the described off-premises station each all has the first and second openings, and the first opening of described indoor set links to each other with the second opening of described cross valve; Described the first and second throttling arrangements are one another in series, and each in described the first and second throttling arrangements includes the first and second openings, and the first opening of described first throttle device links to each other with the second opening of described indoor set; Described the first transfer valve is connected between the second opening of the 4th valve port of described cross valve and described off-premises station, described the second transfer valve is connected between the first opening of the 4th valve port of described cross valve and described off-premises station, described the 3rd transfer valve is connected between the second opening of the second opening of described the second throttling arrangement and described off-premises station, and described the 4th transfer valve is connected between the first opening of the second opening of described the second throttling arrangement and described off-premises station.
According to heat pump of the present invention, by switching first to fourth transfer valve, change the flow direction of cold-producing medium, in order to heating, switch heat pump between refrigeration mode and the defrosting mode, wherein in defrosting mode, cold-producing medium enters off-premises station by off-premises station in the refrigerant inlet under the heating mode, improve defrosting speed, reduced the impact of defrosting heat exchanger heating performance.
In some embodiments of the invention, described the first check valve is along the direction conducting from the first opening of described first throttle device to the second opening of described first throttle device, and the conducting direction of described the second check valve is opposite with the conducting direction of described the first check valve.
In some embodiments of the invention, described the first and second throttling arrangements are heating power expansion valve.
In some embodiments of the invention, described first to fourth transfer valve is magnetic valve.
In some embodiments of the invention, the described first or second check valve replaces with magnetic valve.
In some embodiments of the invention, described indoor set and described off-premises station are micro-channel heat exchanger.
Description of drawings
Fig. 1 is the schematic diagram according to the heat pump that is in heating mode of the embodiment of the invention;
Fig. 2 is the schematic diagram according to the heat pump that is in defrosting mode of the embodiment of the invention;
Fig. 3 is the schematic diagram according to the heat pump that is in refrigeration mode of the embodiment of the invention.
The specific embodiment
The below describes embodiments of the invention in detail, and the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, be intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " " center "; " vertically "; " laterally "; " length "; " width "; " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of indications such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only be for convenience of description the present invention and simplified characterization, 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 limitation of the present invention.
In addition, term " first ", " second " only are used for describing purpose, 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 invention, the implication of " a plurality of " is two or more, unless clear and definite concrete restriction is arranged in addition.
In the present invention, unless clear and definite regulation and restriction are arranged in addition, broad understanding should be done in the terms such as term " installation ", " linking to each other ", " connection ", " fixing ", for example, can be to be fixedly connected with, also can be to removably connect, or other connected modes such as integratedly connection.For the ordinary skill in the art, can understand as the case may be above-mentioned term concrete meaning in the present invention.
In the present invention, unless clear and definite regulation and restriction are arranged in addition, First Characteristic Second Characteristic it " on " or D score can comprise that the first and second features directly contact, can comprise that also the first and second features are not directly contacts but by the other feature contact between them.And, First Characteristic Second Characteristic " on ", " top " and " above " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that the First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " comprise First Characteristic under the Second Characteristic and tiltedly, or only represent that the First Characteristic level height is less than Second Characteristic.
Below with reference to the heat pump of accompanying drawing detailed description according to the embodiment of the invention.
As Figure 1-3, heat pump according to the embodiment of the invention comprises compressor 1, cross valve 2, indoor set 3, off-premises station 4, first throttle device 6, first check valve 7 in parallel with first throttle device 6, the second throttling arrangement 8, second check valve 9, the first transfer valves 51, the second transfer valves 52 in parallel with the second throttling arrangement 8, the 3rd transfer valve 53, and the 4th transfer valve 54.
Particularly, cross valve 2 has first to fourth valve port 21,22,23 and 24, and the outlet of compressor 1 links to each other with the first valve port 21 with the 3rd valve port 23 of cross valve 2 respectively with entrance.Indoor set 3 and off-premises station 4 all have the first and second openings (unmarked), and the first opening of indoor set 3 (the left side opening among Fig. 1) links to each other with the second opening 22 of cross valve 2.
The second opening of indoor set 3 (right openings among Fig. 1) links to each other with first opening (upper end open among Fig. 1) of first throttle device 6, and the second opening of first throttle device 6 (lower ending opening among Fig. 1) links to each other with the first opening of the second throttling arrangement 8.
The conducting direction of the first check valve 7 and the second check valve 9 is opposite.More specifically, when cold-producing medium along from the first opening of first throttle device 6 when its second opening flows, 7 conductings of the first check valve.When cold-producing medium along from the first opening of the second throttling arrangement 8 when its second opening flows, 9 cut-offs of the second check valve.
The first transfer valve 51 is connected between the second opening 42 of the 4th valve port 24 of cross valve 2 and off-premises station 4, the second transfer valve 52 is connected between the first opening 41 of the 4th valve port 24 of cross valve 2 and off-premises station 4, the 3rd transfer valve 53 is connected between the second opening 42 of second opening (lower ending opening among Fig. 1) of the second throttling arrangement 9 and off-premises station 4, and the 4th transfer valve 54 is connected between the first opening 41 of the second opening of the second throttling arrangement 9 and off-premises station 4.
In preferred embodiments more of the present invention, first throttle device 6 and the second throttling arrangement 8 are choke valve, more preferably, are heating power expansion valve.Preferably, the first transfer valve 51, the second transfer valves, 52, the three transfer valves 53 and the 4th transfer valve 54 are magnetic valve.In other preferred embodiments of the present invention, indoor set 3 and indoor set 4 are micro-channel heat exchanger.
Heat pump according to the embodiment of the invention can comprise miscellaneous part, the gas-liquid separator (not shown) of for example can connecting between compressor 1 and the first cross valve 1 can arrange the blower fan (not shown) and drive the motor (not shown) of blower fan at indoor set 3 places.This all is known for those skilled in the art, is not described in detail here.
Referring to the operation of Fig. 1-3 description according to the heat pump of the embodiment of the invention.
Fig. 1 is in heating mode for the heat pump according to the embodiment of the invention.Under heating mode, the first transfer valve 51 and the 4th transfer valve 54 are opened, the second transfer valve 52 and the 3rd transfer valve 53 are closed, cold-producing medium enters cross valve 2 from the 3rd valve port 23 of compressor 1 by cross valve 2, the second valve port 22 through cross valve 2 flows through indoor set 3 successively along the direction shown in the arrow S, the first check valve 7, the second throttling arrangement 7, cold-producing medium flows out the first opening 41 that enters off-premises station 4 by the 4th transfer valve 54 from the second opening of the second throttling arrangement 8, then out turn back to afterwards the 4th valve port 24 of cross valve 2 by the first transfer valve 51 from the second opening 42 of off-premises station 4, the first valve port 21 by cross valve 2 returns compressor 1 again.
As mentioned above, when cold-producing medium along from the first opening of first throttle device 6 when the direction of the second opening flows, 7 conductings of the first check valve, and the second check valve 9 cut-offs this moment, thereby refrigerant bypass first throttle device 6 and by the second throttling arrangement 8.
Fig. 2 is for second heat pump is in defrosting mode according to the present invention.Under defrosting mode, the first transfer valve 51 and the 4th transfer valve 54 are closed, the second transfer valve 52 and the 3rd transfer valve 53 are opened, cross valve 2 switching directions, cold-producing medium enters cross valve 2 from the 3rd valve port 23 of compressor 1 by cross valve 2, then enter first opening 41 of off-premises station 4 by the second transfer valve 52 through the 4th valve port 24 of cross valve 2 after out, then the second opening 42 from off-premises station 4 out passes through the 3rd transfer valve 53, pass through successively the second check valve 8 along direction S, first throttle device 6 and indoor set 3 turn back to the second valve port 22 of cross valve 2, and the first valve port 21 by cross valve 2 returns compressor 1 at last.Because the first thick opening 41 of frost layer that warm refrigerant is assembled from off-premises station 4 when defrosting enters off-premises station 4, therefore defrosting is fast, and the fluctuation of indoor set 3 is little, and the indoor temperature comfort level improves.
Fig. 3 is in refrigeration mode for the heat pump according to the embodiment of the invention.Under refrigeration mode, the first transfer valve 51 and the 4th transfer valve 54 are opened, the second transfer valve 52 and the 3rd transfer valve 53 are closed, cross valve 2 switching directions, the cold-producing medium of compressor 1 compression enters cross valve 2 by the 3rd valve port 23 of cross valve 2, then enter second opening 42 of off-premises station 4 by the first transfer valve 51 through the 4th valve port 24 of cross valve 2 after out, then the first opening 41 from off-premises station 4 out passes through the 4th transfer valve 54 afterwards, pass through successively the second check valve 8 along direction S, first throttle device 6 and indoor set 3 turn back to the second valve port 22 of cross valve 2, and the first valve port 21 by cross valve 2 returns compressor 1 at last.
Heat pump according to the embodiment of the invention, change refrigeration in the intrasystem flow direction by first to fourth transfer valve, can heat easily, switch heat pump between refrigeration mode and the defrosting mode, and defrosting is fast, and the indoor temperature impact is little, and the indoor temperature comfort level improves, and simple in structure, cost is low.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or the example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
Although the above has illustrated and has described embodiments of the invention, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art is not in the situation that break away from principle of the present invention and aim can change above-described embodiment within the scope of the invention, modification, replacement and modification.
Claims (6)
1. heat pump, comprising: compressor, cross valve, indoor set, off-premises station, the first and second throttling arrangements, first check valve in parallel with described first throttle device, and second check valve in parallel with described the second throttling arrangement, first to fourth transfer valve, described cross valve has first to fourth valve port, and first of described compressor and described cross valve links to each other with the 3rd valve port; In described indoor set and the described off-premises station each all has the first and second openings, and the first opening of described indoor set links to each other with the second opening of described cross valve; Described the first and second throttling arrangements are one another in series, and each in described the first and second throttling arrangements includes the first and second openings, and the first opening of described first throttle device links to each other with the second opening of described indoor set; Described the first transfer valve is connected between the second opening of the 4th valve port of described cross valve and described off-premises station, described the second transfer valve is connected between the first opening of the 4th valve port of described cross valve and described off-premises station, described the 3rd transfer valve is connected between the second opening of the second opening of described the second throttling arrangement and described off-premises station, and described the 4th transfer valve is connected between the first opening of the second opening of described the second throttling arrangement and described off-premises station.
2. heat pump according to claim 1, wherein, described the first check valve is along the direction conducting from the first opening of described first throttle device to the second opening of described first throttle device, and the conducting direction of described the second check valve is opposite with the conducting direction of described the first check valve.
3. heat pump according to claim 1, wherein, described the first and second throttling arrangements are heating power expansion valve.
4. heat pump according to claim 1, wherein, described first to fourth transfer valve is magnetic valve.
5. heat pump according to claim 1, wherein, described the first check valve or the second check valve are replaceable to be magnetic valve.
6. each described heat pump according to claim 1-4, wherein, described indoor set and described off-premises station are micro-channel heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100288283A CN103047727A (en) | 2013-01-23 | 2013-01-23 | Heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100288283A CN103047727A (en) | 2013-01-23 | 2013-01-23 | Heat pump system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103047727A true CN103047727A (en) | 2013-04-17 |
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ID=48060469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100288283A Pending CN103047727A (en) | 2013-01-23 | 2013-01-23 | Heat pump system |
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| Country | Link |
|---|---|
| CN (1) | CN103047727A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440098A (en) * | 2016-09-07 | 2017-02-22 | 海信（山东）空调有限公司 | Air-conditioner outdoor unit, defrosting control method and device of air-conditioner outdoor unit and air conditioner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100698373B1 (en) * | 2006-09-02 | 2007-03-23 | (주)경진티알엠 | Defrosting system of heat pump with 4 check valves |
| KR20080001048A (en) * | 2006-06-29 | 2008-01-03 | 권순정 | Heat Pump Air Conditioning System |
| CN102003842A (en) * | 2010-11-04 | 2011-04-06 | 三花丹佛斯（杭州）微通道换热器有限公司 | Evaporator and refrigeration system with same |
| CN202470529U (en) * | 2012-03-06 | 2012-10-03 | 俞绍明 | Heat pump system |
| CN203100035U (en) * | 2013-01-23 | 2013-07-31 | 三花控股集团有限公司 | Heat pump system |
-
2013
- 2013-01-23 CN CN2013100288283A patent/CN103047727A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080001048A (en) * | 2006-06-29 | 2008-01-03 | 권순정 | Heat Pump Air Conditioning System |
| KR100698373B1 (en) * | 2006-09-02 | 2007-03-23 | (주)경진티알엠 | Defrosting system of heat pump with 4 check valves |
| CN102003842A (en) * | 2010-11-04 | 2011-04-06 | 三花丹佛斯（杭州）微通道换热器有限公司 | Evaporator and refrigeration system with same |
| CN202470529U (en) * | 2012-03-06 | 2012-10-03 | 俞绍明 | Heat pump system |
| CN203100035U (en) * | 2013-01-23 | 2013-07-31 | 三花控股集团有限公司 | Heat pump system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440098A (en) * | 2016-09-07 | 2017-02-22 | 海信（山东）空调有限公司 | Air-conditioner outdoor unit, defrosting control method and device of air-conditioner outdoor unit and air conditioner |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20130417 Assignee: Sanhua Micro Channel Heat Exchanger Inc. Assignor: Sanhua Holding Group Co., Ltd. Contract record no.: 2015990000024 Denomination of invention: Heat pump system for preparing hot water using after heat and its use method License type: Common License Record date: 20150113 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130417 |