CN103851760B - A kind of low temperature full heat recovery device - Google Patents
A kind of low temperature full heat recovery device Download PDFInfo
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- CN103851760B CN103851760B CN201410132072.1A CN201410132072A CN103851760B CN 103851760 B CN103851760 B CN 103851760B CN 201410132072 A CN201410132072 A CN 201410132072A CN 103851760 B CN103851760 B CN 103851760B
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/56—Heat recovery units
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Abstract
The present invention discloses a kind of low temperature full heat recovery device, comprise the compressor carrying compressor electric expansion valve, four-way valve, air side heat exchanger, domestic hot water side heat exchanger, hot water side interchanger, throttling set, strainer, check valve, container for storing liquid, kapillary, magnetic valve, gas-liquid separator, hydrojet magnetic valve, and above-mentioned parts are connected six branch roads of getting up, this kind of full heat recovery device controls the flow direction of refrigeration agent by the switch of multiple four-way valve, not only reduce cost, also achieve refrigeration, system heat waits switching between six kinds of patterns, air-conditioning is made to have more comprehensively operating mode, and, achieve at low ambient temperatures, when air-conditioning is in hot-water mode processed or heating mode, liquid condensed refrigerant can enter compressor through hydrojet magnetic valve and compressor electric expansion valve, in addition, when the exhaust temperature of compressor reaches preset temp, compressor electric expansion valve can be opened, the exhaust temperature of compressor is reduced, and then unit can normally be run at low temperatures.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to a kind of low temperature full heat recovery device.
Background technology
Along with being becoming tight energy day within the scope of the world, mineral fuel reduce and the obvious growth of energy demand, impel people to explore energy-conservation new way and improve the effective rate of utilization of the energy. Energy utilization level according to various countries is different, has the energy of 43%��70% mainly to lose with the form of used heat, also can cause city " tropical island effect ". Therefore European and American developed countries attach great importance to the research and practice of air conditioner heat recovery technology, it is achieved the second stage employ of heat energy, thus reduce direct consumption and the discharge of the energy, to reach the object of energy saving standard. In China, in recent years, the air conditioner heat recovery technology of China have also been obtained and develops rapidly, and the energy-saving effect in practical engineering application is quite obvious, is widely used in the places such as hotel, hospital, school, factory, large stadium.
Existing full heat recovery device has has very wide application prospect. But current existing full heat recovery device increases Y-tube often on vapor pipe, and on two branch roads, magnetic valve is installed, the flow direction of refrigeration agent is controlled by controlling the switch of multiple magnetic valve, this kind of full heat recovery device causes cost higher because employing the more expensive magnetic valve of multiple price, and the pattern of air-conditioning switching is comprehensive not, only can realize refrigeration, hot water processed, recovery of heat, and system heat of having no idea to carry out; Although some air-conditioning can freeze, make heat, hot water processed, recovery of heat, have no idea to defrost when hot water processed.
Therefore, how to provide a kind of recovering apparatus for heat of air-conditioner so that it is for after air conditioning unit, it is possible to reduce costs, make air-conditioning have comparatively comprehensively operating mode, become the important technological problems that those skilled in the art are urgently to be resolved hurrily.
Summary of the invention
In view of this, the present invention provides a kind of low temperature full heat recovery device, makes it for after air conditioning unit to reach, it is possible to reduce costs, make air-conditioning have the object of comparatively comprehensively operating mode.
For achieving the above object, the present invention provides following technical scheme:
A kind of low temperature full heat recovery device, for air conditioning unit recovery of heat, comprise carry compressor electric expansion valve compressor, the first four-way valve, the 2nd four-way valve, the 3rd four-way valve;
With the first branch road that the C interface of described 2nd four-way valve is connected, described first branch road comprise connect successively air side heat exchanger, the first strainer, first throttle device, tow filtrator, and in parallel with described first strainer, described first throttle device, described tow filtrator for by described 2nd four-way valve to the first check valve of the other end conducting;
With the 2nd branch road that the E interface of described 2nd four-way valve is connected, described 2nd branch road is in series with domestic hot water side heat exchanger, the 3rd strainer, the 2nd throttling set and the 4th strainer successively;
By the 3rd branch road that the S interface of described 2nd four-way valve and the S interface of described first four-way valve are connected with the D interface of described first four-way valve, described 3rd branch road is in series with gas-liquid separator and described compressor successively;
The 4th branch road being connected with the E interface of described first four-way valve, described 4th branch road is in series with hot water side interchanger, the 5th strainer, kapillary, magnetic valve and the 6th strainer successively;
With the 5th branch road that the C interface of described 3rd four-way valve is connected, described 5th branch road be in series with successively container for storing liquid and for by described 3rd four-way valve to the 2nd check valve of the other end conducting, the E interface of described 3rd four-way valve blocks, S interface and described 2nd branch road are communicated between described domestic hot water side heat exchanger and described 3rd strainer, D interface and described 4th branch road are communicated between described hot water side interchanger and described 5th strainer, described first branch road and described 2nd branch road are away from one end of described 2nd four-way valve, described 5th branch road is connected with described compressor electric expansion valve by hydrojet magnetic valve after being interconnected away from one end of described first four-way valve away from one end of described 3rd four-way valve and described 4th branch road,
It is connected the C interface of described first four-way valve and the 6th branch road of the D interface of described 2nd four-way valve.
Preferably, described first throttle device and described 2nd throttling set are electric expansion valve.
Preferably, described domestic hot water side heat exchanger is plate-type heat exchanger, double-pipe exchanger, barrel type heat exchanger or shell and tube heat exchanger.
Preferably, described hot water side interchanger is plate-type heat exchanger, double-pipe exchanger, barrel type heat exchanger or shell and tube heat exchanger.
Preferably, described air side heat exchanger is finned heat exchanger.
Preferably, the refrigerant that described low temperature full heat recovery device uses is R22 or R410a.
From technique scheme it may be seen that low temperature full heat recovery device provided by the invention, comprise the compressor carrying compressor electric expansion valve, first four-way valve, 2nd four-way valve, 3rd four-way valve, air side heat exchanger, domestic hot water side heat exchanger, hot water side interchanger, first throttle device, 2nd throttling set, first strainer, tow filtrator, 3rd strainer, 4th strainer, 5th strainer, 6th strainer, first check valve, 2nd check valve, container for storing liquid, kapillary, magnetic valve, gas-liquid separator, hydrojet magnetic valve, and above-mentioned parts are connected six branch roads of getting up, this kind of full heat recovery device is provided with multiple four-way valve, is controlled the flow direction of refrigeration agent by the switch of multiple four-way valve, not only reduces cost, also achieves refrigeration, system heat, hot water processed, recovery of heat, heating and defrosting and hot water processed defrost and switch between six kinds of patterns, air-conditioning is made to have more comprehensively operating mode, and, achieve under low temperature environment (envrionment temperature is less than-20 DEG C), when air-conditioning is in hot-water mode processed or heating mode, liquid condensed refrigerant can enter compressor through hydrojet magnetic valve through the throttling of compressor electric expansion valve, in addition, when the exhaust temperature of compressor reaches preset temp, compressor electric expansion valve also can be opened, the exhaust temperature of compressor is reduced, to reach the object that use range expands, unit can normally be run at low temperatures.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, it is briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the low temperature full heat recovery device that Fig. 1 provides for the embodiment of the present invention.
Embodiment
The present invention provides a kind of low temperature full heat recovery device, makes it for after air conditioning unit to reach, it is possible to reduce costs, make air-conditioning have the object of comparatively comprehensively operating mode.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only the present invention's part embodiment, instead of whole embodiments. Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, the structural representation of the low temperature full heat recovery device that Fig. 1 provides for the embodiment of the present invention.
The present invention provides a kind of low temperature full heat recovery device, for air conditioning unit recovery of heat, comprise the compressor 1 carrying compressor electric expansion valve 23, first four-way valve 2, 2nd four-way valve 3, 3rd four-way valve 4, air side heat exchanger 5, domestic hot water side heat exchanger 6, hot water side interchanger 7, first throttle device 8, 2nd throttling set 9, first strainer 10, tow filtrator 11, 3rd strainer 12, 4th strainer 13, 5th strainer 14, 6th strainer 15, first check valve 16, 2nd check valve 17, container for storing liquid 18, kapillary 19, magnetic valve 20, gas-liquid separator 21, hydrojet magnetic valve 22 and six branch roads that the connection of above-mentioned each parts is got up.
Wherein, first branch road is connected with the C interface of the 2nd four-way valve 3, first branch road comprise connect successively air side heat exchanger 5, first strainer 10, first throttle device 8, tow filtrator 11, and in parallel with the first strainer 10, first throttle device 8, tow filtrator 11 for by the 2nd four-way valve 3 to the first check valve 16 of the other end conducting;
2nd branch road is connected with the E interface of the 2nd four-way valve 3, and the 2nd branch road is in series with domestic hot water side heat exchanger 6, the 3rd strainer 12, the 2nd throttling set 9 and the 4th strainer 13 successively;
The S interface of the 2nd four-way valve 3 and the S interface of the first four-way valve 2 are connected by the 3rd branch road with the D interface of the first four-way valve 2, and the 3rd branch road is in series with gas-liquid separator 21 and compressor 1 successively;
4th branch road is connected with the E interface of the first four-way valve 2, and the 4th branch road is in series with hot water side interchanger 7, the 5th strainer 14, kapillary 19, magnetic valve 20 and the 6th strainer 15 successively;
5th branch road is connected with the C interface of the 3rd four-way valve 4, 5th branch road be in series with successively container for storing liquid 18 and for by the 3rd four-way valve to the 2nd check valve 17 of the other end conducting, the E interface of the 3rd four-way valve 4 blocks, S interface and the 2nd branch road are communicated between domestic hot water side heat exchanger 6 and the 3rd strainer 12, D interface and the 4th branch road are communicated between hot water side interchanger 7 and the 5th strainer 14, first branch road and the 2nd branch road are away from one end of the 2nd four-way valve 3, 5th branch road is connected with compressor electric expansion valve 23 by hydrojet magnetic valve 22 after being interconnected away from one end of the first four-way valve 2 away from one end of the 3rd four-way valve 4 and the 4th branch road,
6th branch road is connected the C interface of the first four-way valve 2 and the D interface of the 2nd four-way valve 3.
In sum, low temperature full heat recovery device provided by the invention, it is possible to realize refrigeration, system heat, hot water processed, recovery of heat, heating and defrosting and hot water processed defrost the switching between six patterns, and under each pattern, the concrete flow direction of refrigeration agent is:
1, refrigeration mode
First four-way valve 2 closes, and the 2nd four-way valve 3 closes, and the 3rd four-way valve 4 closes, and first throttle device 8 closes, and the 2nd throttling set 9 is opened, and magnetic valve 20 closes.
The air-breathing end of E, S interface of D, C interface of the exhaust side of compressor 1 and the first four-way valve 2, D, C interface of the 2nd four-way valve, air side heat exchanger 5, first check valve 16, the 4th strainer 13, the 2nd throttling set 9, the 3rd strainer 12, domestic hot water side heat exchanger 6, the 2nd four-way valve 3, gas-liquid separator 21, compressor 1 is connected successively.
2, heating mode
First four-way valve 2 closes, and the 2nd four-way valve 3 is opened, and the 3rd four-way valve 4 is opened, and first throttle device 8 is opened, and the 2nd throttling set 9 closes, and magnetic valve 20 closes.
The air-breathing end of C, S interface of S, C interface of D, C interface of the exhaust side of compressor 1 and the first four-way valve 2, the D of the 2nd four-way valve, E interface, domestic hot water side heat exchanger 6, the 3rd four-way valve 4, container for storing liquid 18, the 2nd check valve 17, the 2nd filter tap 11, first throttle device 8, first strainer 10, air side heat exchanger 5, the 2nd four-way valve 3, gas-liquid separator 21, compressor 1 is connected successively.
3, hot-water mode processed
First four-way valve 2 is opened, and the 2nd four-way valve 3 is opened, and the 3rd four-way valve 4 closes, and first throttle device 8 is opened, and the 2nd throttling set 9 closes, and magnetic valve 20 closes.
The air-breathing end of C, S interface of D, C interface of the D of the exhaust side of compressor 1 and the first four-way valve 2, E interface, hot water side interchanger 7, the 3rd four-way valve 4, container for storing liquid 18, the 2nd check valve 17, the 2nd filter tap 11, first throttle device 8, first strainer 10, air side heat exchanger 5, the 2nd four-way valve 3, gas-liquid separator 21, compressor 1 is connected successively.
4, total heat recovery pattern
First four-way valve 2 is opened, and the 2nd four-way valve 3 closes, and the 3rd four-way valve 4 closes, and first throttle device 8 closes, and the 2nd throttling set 9 is opened, and magnetic valve 20 closes.
The air-breathing end of E, S interface of D, C interface of the D of the exhaust side of compressor 1 and the first four-way valve 2, E interface, hot water side interchanger 7, the 3rd four-way valve 4, container for storing liquid 18, the 2nd check valve 17, the 4th strainer 13, the 2nd throttling set 9, the 3rd strainer 12, domestic hot water side heat exchanger 6, the 2nd four-way valve 3, gas-liquid separator 21, compressor 1 is connected successively.
5, heating and defrosting pattern
First four-way valve 2 closes, and the 2nd four-way valve 3 closes, and the 3rd four-way valve 4 closes, and first throttle device 8 closes, and the 2nd throttling set 9 is opened, and magnetic valve 20 closes.
The air-breathing end of E, S interface of D, C interface of the exhaust side of compressor 1 and the first four-way valve 2, D, C interface of the 2nd four-way valve, air side heat exchanger 5, first check valve 16, the 4th strainer 13, the 2nd throttling set 9, the 3rd strainer 12, domestic hot water side heat exchanger 6, the 2nd four-way valve 3, gas-liquid separator 21, compressor 1 is connected successively.
6, hot water defrosting mode processed
First four-way valve 2 closes, and the 2nd four-way valve 3 closes, and the 3rd four-way valve 4 closes, and first throttle device 8 closes, and the 2nd throttling set 9 closes, and magnetic valve 20 leaves.
The air-breathing end of E, S interface of D, C interface of the exhaust side of compressor 1 and the first four-way valve 2, D, C interface of the 2nd four-way valve, air side heat exchanger 5, first check valve 16, the 6th strainer 15, magnetic valve 20, kapillary 19, the 5th strainer 14, hot water side interchanger 7, first four-way valve 2, gas-liquid separator 21, compressor 1 is connected successively.
In addition, achieve under low temperature environment (envrionment temperature is less than-20 DEG C), when air-conditioning is in hot-water mode processed or heating mode, liquid condensed refrigerant can enter compressor through hydrojet magnetic valve through the throttling of compressor electric expansion valve, in addition, when the exhaust temperature of compressor reaches preset temp, in the embodiment of the present invention, preset temp is 121 DEG C, compressor electric expansion valve also can be opened, and the exhaust temperature of compressor is reduced.
Compared with prior art, low temperature full heat recovery device provided by the invention, the flow direction of refrigeration agent is controlled by the switch of multiple four-way valve, not only reduce cost, also achieve refrigeration, system heat, hot water processed, recovery of heat, heating and defrosting and hot water processed defrost and switch between six kinds of patterns, air-conditioning is made to have more comprehensively operating mode, and, achieve under low temperature environment (envrionment temperature is less than-20 DEG C), when air-conditioning is in hot-water mode processed or heating mode, liquid condensed refrigerant can enter compressor through hydrojet magnetic valve through the throttling of compressor electric expansion valve, in addition, when the exhaust temperature of compressor reaches preset temp, compressor electric expansion valve also can be opened, the exhaust temperature of compressor is reduced, to reach the object that use range expands, unit can normally be run at low temperatures.
First throttle device 8 and the 2nd throttling set 9 can adopt multiple device, such as electric expansion valve, thermal expansion valve etc., but electric expansion valve temperature sensing part is thermoelectricity occasionally hot resistance, their same at low temperatures energy accurate responses go out the change of superheating temperature, relative to thermal expansion valve, there is more outstanding adjusting function at low ambient temperatures, in embodiments of the present invention, therefore, first throttle device and the 2nd throttling set are electric expansion valve.
Domestic hot water side heat exchanger 6 and hot water side interchanger 7 can adopt the interchanger of different structure according to the difference of user demand, such as plate-type heat exchanger, double-pipe exchanger, barrel type heat exchanger or shell and tube heat exchanger etc.
Preferably, air side heat exchanger 5 is finned heat exchanger, and finned heat exchanger is the interchanger that heat transfer element is made up of fin, has the advantages such as heat transfer efficiency height, compact, light and handy, strong adaptability.
Concrete, the refrigerant that low temperature full heat recovery device uses is R22 or R410a. R-22 is current most popular middle low-temperature refrigerant, it is mainly used in the refrigeration equipments such as domestic air conditioning, business air conditioner, central air-conditioning, mobile air conditioner, Teat pump boiler, have and metal is had good stability, free from corrosion advantage, and R410a is a kind of novel environment-friendly refrigerant, operating pressure is about 1.6 times of common R22 air-conditioning, refrigeration (warming up) efficiency height, it is possible to improve heat pump performance under the prerequisite not damaged the ozone layer. Other refrigerant can certainly be adopted.
In this specification sheets, each embodiment adopts the mode gone forward one by one to describe, and what each embodiment emphasis illustrated is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are enable to realize or use the present invention. To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments. Therefore, the present invention can not be limited in these embodiments shown in this article, but be met the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. a low temperature full heat recovery device, for air conditioning unit recovery of heat, it is characterised in that, comprise carry compressor electric expansion valve (23) compressor (1), the first four-way valve (2), the 2nd four-way valve (3), the 3rd four-way valve (4);
With the first branch road that the C interface of described 2nd four-way valve (3) is connected, described first branch road comprise connect successively air side heat exchanger (5), the first strainer (10), first throttle device (8), tow filtrator (11), and in parallel with described first strainer (10), described first throttle device (8), described tow filtrator (11) for by described 2nd four-way valve (3) to first check valve (16) of the other end conducting;
With the 2nd branch road that the E interface of described 2nd four-way valve (3) is connected, described 2nd branch road is in series with domestic hot water side heat exchanger (6), the 3rd strainer (12), the 2nd throttling set (9) and the 4th strainer (13) successively;
By the 3rd branch road that the described S interface of the 2nd four-way valve (3) and the S interface of described first four-way valve (2) are connected with the D interface of described first four-way valve (2), described 3rd branch road is in series with gas-liquid separator (21) and described compressor (1) successively;
With the 4th branch road that the E interface of described first four-way valve (2) is connected, described 4th branch road is in series with hot water side interchanger (7), the 5th strainer (14), kapillary (19), magnetic valve (20) and the 6th strainer (15) successively;
With the 5th branch road that the C interface of described 3rd four-way valve (4) is connected, described 5th branch road be in series with successively container for storing liquid (18) and for by described 3rd four-way valve to the 2nd check valve (17) of the other end conducting, the E interface of described 3rd four-way valve (4) blocks, S interface and described 2nd branch road are communicated between described domestic hot water side heat exchanger (6) and described 3rd strainer (12), D interface and described 4th branch road are communicated between described hot water side interchanger (7) and described 5th strainer (14), described first branch road and described 2nd branch road are away from one end of described 2nd four-way valve (3), described 5th branch road is connected with described compressor electric expansion valve (23) by hydrojet magnetic valve (22) after being interconnected away from one end of described first four-way valve (2) away from one end of described 3rd four-way valve (4) and described 4th branch road,
It is connected the C interface of described first four-way valve (2) and the 6th branch road of the D interface of described 2nd four-way valve (3).
2. low temperature full heat recovery device according to claim 1, it is characterised in that, described first throttle device (8) and described 2nd throttling set (9) are electric expansion valve.
3. low temperature full heat recovery device according to claim 1, it is characterised in that, described domestic hot water side heat exchanger (6) is plate-type heat exchanger, double-pipe exchanger, barrel type heat exchanger or shell and tube heat exchanger.
4. low temperature full heat recovery device according to claim 1, it is characterised in that, described hot water side interchanger (7) is plate-type heat exchanger, double-pipe exchanger, barrel type heat exchanger or shell and tube heat exchanger.
5. low temperature full heat recovery device according to claim 1, it is characterised in that, described air side heat exchanger (5) is finned heat exchanger.
6. low temperature full heat recovery device according to claim 1, it is characterised in that, the refrigerant that described low temperature full heat recovery device uses is R22 or R410a.
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| CN201410132072.1A CN103851760B (en) | 2014-04-02 | 2014-04-02 | A kind of low temperature full heat recovery device |
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| CN201410132072.1A CN103851760B (en) | 2014-04-02 | 2014-04-02 | A kind of low temperature full heat recovery device |
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| CN103851760B true CN103851760B (en) | 2016-06-08 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103868283B (en) * | 2014-04-03 | 2016-08-24 | 深圳麦克维尔空调有限公司 | A kind of air conditioning system |
| CN106016592A (en) * | 2016-05-24 | 2016-10-12 | 南京天加空调设备有限公司 | Control method for total heat recovery air-cooled chiller unit or hot water unit |
| CN108870803A (en) | 2017-05-12 | 2018-11-23 | 开利公司 | Heat pump system and its control method |
| CN110319627A (en) * | 2018-03-30 | 2019-10-11 | 浙江盾安机电科技有限公司 | Total heat recovery air-conditioning system |
| CN108931069B (en) * | 2018-06-05 | 2024-04-26 | 珠海英伟特电子科技有限公司 | Air conditioner water heater and control method thereof |
| CN109469991A (en) * | 2018-11-30 | 2019-03-15 | 广东西屋康达空调有限公司 | A kind of total heat recovery type air cooling module unit |
| CN112013561B (en) * | 2019-05-30 | 2022-08-12 | 浙江盾安机电科技有限公司 | Total heat recovery refrigerating system |
| CN112984662B (en) * | 2021-03-31 | 2023-04-07 | 广东积微科技有限公司 | Heat recovery air-conditioning hot water system and refrigerant flow control method thereof |
| CN114413365A (en) * | 2022-01-25 | 2022-04-29 | 广东美的暖通设备有限公司 | Heat recovery indirect evaporative cooling device |
| CN115031437B (en) * | 2022-06-14 | 2023-09-15 | 中山市爱美泰电器有限公司 | Ultralow temperature heat pump system |
| CN115406136B (en) * | 2022-08-23 | 2023-09-08 | 中山市爱美泰电器有限公司 | Low-temperature starting heat pump system |
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| WO2011123979A1 (en) * | 2010-04-06 | 2011-10-13 | 远景有限公司 | Heat pump hot water air conditioner |
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