CN105299954B - Without defrosting and outer defeated cold or hot water heat pump apparatus of air source - Google Patents
Without defrosting and outer defeated cold or hot water heat pump apparatus of air source Download PDFInfo
- Publication number
- CN105299954B CN105299954B CN201510828864.7A CN201510828864A CN105299954B CN 105299954 B CN105299954 B CN 105299954B CN 201510828864 A CN201510828864 A CN 201510828864A CN 105299954 B CN105299954 B CN 105299954B
- Authority
- CN
- China
- Prior art keywords
- solution
- evaporator
- condenser
- heat exchange
- hot water
- 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.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 238000010257 thawing Methods 0.000 title claims description 18
- 239000003507 refrigerant Substances 0.000 claims abstract description 10
- 239000000243 solution Substances 0.000 claims description 71
- 229910017053 inorganic salt Inorganic materials 0.000 claims description 7
- 239000012266 salt solution Substances 0.000 claims description 6
- 230000001413 cellular effect Effects 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 238000012856 packing Methods 0.000 claims 1
- 238000005057 refrigeration Methods 0.000 claims 1
- 239000000945 filler Substances 0.000 abstract description 8
- 238000004378 air conditioning Methods 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 238000007710 freezing Methods 0.000 abstract description 3
- 230000008014 freezing Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000002638 palliative care Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
本发明涉及一种无需除霜且外输冷或热水的空气源热泵装置。所述装置包括：压缩机，冷凝器/蒸发器，膨胀阀，蒸发器/冷凝器，与流经冷凝器/蒸发器的制冷剂交换热量的溶液换热单元，与蒸发器/冷凝器连接的外输冷或热水循环管路及水泵。本发明通过采取换热溶液与流经冷凝器/蒸发器的制冷剂交换热量，使冷凝器/蒸发器不与空气直接接触。由于换热溶液的凝固点很低，即使在寒冷的冬季冷凝器/蒸发器也不结霜。本发明采用类似蜂窝状的防腐填料填充换热芯体，增大了换热溶液与换热芯体的接触表面积；而且换热溶液的粘性较大，有利于附着于填料上，增加了溶液与空气的接触时间，因而提高了换热效率，有利于实现空调设备的小型化。
The invention relates to an air source heat pump device which does not need to defrost and can deliver cold or hot water. The device includes: a compressor, a condenser/evaporator, an expansion valve, an evaporator/condenser, a solution heat exchange unit for exchanging heat with the refrigerant flowing through the condenser/evaporator, and a External cold or hot water circulation pipeline and water pump. In the present invention, the heat exchange solution is used to exchange heat with the refrigerant flowing through the condenser/evaporator, so that the condenser/evaporator does not directly contact with the air. Since the freezing point of the heat exchange solution is very low, the condenser/evaporator does not frost even in cold winter. The present invention uses honeycomb-like anti-corrosion fillers to fill the heat exchange core, which increases the contact surface area between the heat exchange solution and the heat exchange core; moreover, the heat exchange solution is more viscous, which is conducive to attachment to the filler, increasing the contact between the solution and the heat exchange core. The contact time of the air is shortened, thus improving the heat exchange efficiency, which is conducive to the miniaturization of air conditioning equipment.
Description
技术领域technical field
本发明属于空调技术领域，具体涉及一种空气源热泵装置，尤其是一种无需除霜且外输冷或热水的空气源热泵装置。The invention belongs to the technical field of air conditioning, and in particular relates to an air source heat pump device, in particular to an air source heat pump device which does not need to defrost and outputs cold or hot water.
背景技术Background technique
上世纪80年代初，大、中型空气源热泵机组开始进入中国长江流域及其周边地区空调市场，空气源热泵的销售在上世纪九十年代后期出现了一个高潮期。人们在使用中已体验到，空气源热泵可靠节能，安装方便，但该机组在夏季高温时存在能耗与空调制冷效果成反比的现象，即“逆反效应”：夏季室外空气温度越高，能耗越高，制冷效果却越差。而且冬季长江流域及其周边地区室外空气湿度较高，导致室外翅片热交换器严重结霜，易于引起翅片间空气流通堵塞，交换效率下降，使机组的除霜能耗增大，不利于机组的供热效果。In the early 1980s, large and medium-sized air-source heat pump units began to enter the air-conditioning market in the Yangtze River Basin and its surrounding areas in China, and the sales of air-source heat pumps reached a peak in the late 1990s. People have experienced in use that the air source heat pump is reliable, energy-saving and easy to install, but the energy consumption of the unit is inversely proportional to the cooling effect of the air conditioner in summer, that is, the "reverse effect": the higher the outdoor air temperature in summer, the higher the energy consumption. The higher the consumption, the worse the cooling effect. Moreover, the outdoor air humidity in the Yangtze River Basin and its surrounding areas is high in winter, which leads to severe frosting of the outdoor fin heat exchanger, which is easy to cause blockage of the air circulation between the fins, and the exchange efficiency decreases, which increases the defrosting energy consumption of the unit, which is not conducive to The heating effect of the unit.
现有空气源热泵技术，在近半个世纪以来已为人类社会的节能和环保事业做出了重要贡献，但随着现代科学技术的发展与进步，已具备了对此技术进行某些优化和改进的条件，其关键是怎样从根本上解决和消除它存在的弊端，例如，冬季除霜频繁的问题，很多企业利用了现代高科技中先进的电脑技术。但是实践证明，只是不得已而为之的治标处理方法，其效果并不理想，根本问题并没有解决。The existing air source heat pump technology has made important contributions to the energy conservation and environmental protection of human society in the past half a century, but with the development and progress of modern science and technology, some optimization and The key to improving conditions is how to fundamentally solve and eliminate its disadvantages. For example, the problem of frequent defrosting in winter, many enterprises have used advanced computer technology in modern high technology. However, practice has proved that the palliative treatment method is only a last resort, and its effect is not ideal, and the fundamental problem has not been solved.
热泵结霜包括正常和非正常两种状态，每种结霜都会导致很严重的后果。针对结霜问题，一般的解决办法有：(1)考虑到结霜过程是先钢管结霜、后蒸发器翅片结霜、再蒸发器内侧结霜的过程，可以增加风机转速，增加排风量；(2)增大换热面积，蒸发温度与环境温度的温差就比较小，延缓结霜周期；(3)应用小循环系统使机组得到休息，缩减化霜时间，同时能保证蓄热水箱有足够温度的热水，并且确保提高能效比，成本增加。Heat pump frosting includes normal and abnormal states, and each kind of frosting will lead to very serious consequences. For the frosting problem, the general solutions are as follows: (1) Considering that the frosting process is the process of frosting on the steel pipe first, then frosting on the fins of the evaporator, and then frosting on the inside of the evaporator, the fan speed can be increased, and the exhaust air can be increased. (2) Increase the heat exchange area, the temperature difference between the evaporation temperature and the ambient temperature will be relatively small, and delay the frosting cycle; (3) Use a small circulation system to make the unit rest, shorten the defrosting time, and at the same time ensure hot water storage The tank has hot water of sufficient temperature, and the energy efficiency ratio is guaranteed to be improved, and the cost is increased.
目前的除霜技术存在着机理性的缺陷：(1)无论是停机化霜、反转运行化霜还是延缓化霜，都会影响热泵运行效果，对供热的安全性、稳定性影响严重；(2)都是通过增加能耗投入的办法改善或解决结霜问题，如系统反转运行化霜、增加风量等，降低了系统的能效比，增加用户能源成本；(3)均为被动除霜，不能避免除霜不及时、除霜不净现象。The current defrosting technology has mechanistic defects: (1) Whether it is shutdown defrosting, reverse running defrosting or delayed defrosting, it will affect the operation effect of the heat pump and seriously affect the safety and stability of heating; ( 2) Improve or solve the problem of frosting by increasing energy consumption, such as defrosting in reverse operation of the system, increasing air volume, etc., which reduces the energy efficiency ratio of the system and increases energy costs for users; (3) are passive defrosting , Unavoidable defrosting is not timely, defrosting is not clean.
发明内容Contents of the invention
为了解决现有技术中存在的上述问题，本发明提供一种无需除霜且外输冷或热水的空气源热泵装置。In order to solve the above-mentioned problems in the prior art, the present invention provides an air source heat pump device that does not need defrosting and outputs cold or hot water.
为实现上述目的，本发明采取如下技术方案：To achieve the above object, the present invention takes the following technical solutions:
一种无需除霜且外输冷或热水的空气源热泵装置，包括：压缩机，冷凝器/蒸发器，膨胀阀，蒸发器/冷凝器，与流经冷凝器/蒸发器的制冷剂交换热量的溶液换热单元。其中，所述压缩机的输出端与所述冷凝器/蒸发器的制冷剂侧输入端连接，所述冷凝器/蒸发器的制冷剂侧的输出端与所述膨胀阀的输入端连接，所述膨胀阀的输出端与所述压缩机的输入端连接。所述冷凝器/蒸发器的循环溶液侧与所述溶液换热单元相连。所述蒸发器/冷凝器与外输冷或热水循环管路连接，所述外输冷或热水循环管路还包括为所述外输冷或热水提供动力的水泵。An air source heat pump device that does not need defrosting and outputs cold or hot water, including: compressor, condenser/evaporator, expansion valve, evaporator/condenser, and refrigerant flowing through the condenser/evaporator Thermal solution heat exchange unit. Wherein, the output end of the compressor is connected to the refrigerant-side input end of the condenser/evaporator, and the refrigerant-side output end of the condenser/evaporator is connected to the input end of the expansion valve, so The output end of the expansion valve is connected with the input end of the compressor. The circulating solution side of the condenser/evaporator is connected to the solution heat exchange unit. The evaporator/condenser is connected to an external cold or hot water circulation pipeline, and the external cold or hot water circulation pipeline also includes a water pump that provides power for the external cold or hot water.
进一步地，所述溶液换热单元包括溶液泵、换热芯体、溶液槽及溶液管路。所述溶液槽的溶液输出端通过所述溶液管路与所述冷凝器/蒸发器的循环溶液侧的输入端连接，所述冷凝器/蒸发器的循环溶液侧的输出端通过所述溶液管路与所述溶液泵的输入端连接，所述溶液泵的输出端通过所述溶液管路与所述换热芯体的输入端相连。Further, the solution heat exchange unit includes a solution pump, a heat exchange core, a solution tank and a solution pipeline. The solution output end of the solution tank is connected to the input end of the circulating solution side of the condenser/evaporator through the solution pipeline, and the output end of the circulating solution side of the condenser/evaporator is connected through the solution pipe The pipeline is connected to the input end of the solution pump, and the output end of the solution pump is connected to the input end of the heat exchange core through the solution pipeline.
进一步地，所述换热芯体采用蜂窝状防腐填料填充。Further, the heat exchange core is filled with honeycomb anti-corrosion filler.
进一步地，所述溶液槽内的溶液为无机盐溶液。Further, the solution in the solution tank is an inorganic salt solution.
与现有技术相比，本发明具有以下优点：Compared with the prior art, the present invention has the following advantages:
(1)本发明通过采取换热溶液(如无机盐溶液)与流经冷凝器/蒸发器的制冷剂交换热量，使冷凝器/蒸发器不与空气直接接触。由于换热溶液的凝固点低，即使在寒冷的冬季冷凝器/蒸发器也不结霜，消除了传统空气源热泵制热模式下需要除霜的工序，同时降低了空气源热泵的维修几率。(1) In the present invention, the heat exchange solution (such as inorganic salt solution) is used to exchange heat with the refrigerant flowing through the condenser/evaporator, so that the condenser/evaporator does not directly contact with the air. Due to the low freezing point of the heat exchange solution, the condenser/evaporator does not frost even in the cold winter, eliminating the need for defrosting in the traditional air source heat pump heating mode, and reducing the maintenance probability of the air source heat pump.
(2)本发明采用类似蜂窝状的防腐填料填充换热芯体，增大了换热溶液与换热芯体的接触表面积；而且换热溶液的粘性大，有利于附着于填料之上，增加了溶液与空气的接触时间，因而提高了换热效率，有利于实现空调设备的小型化。(2) The present invention uses honeycomb-like anticorrosion fillers to fill the heat exchange core, which increases the contact surface area between the heat exchange solution and the heat exchange core; and the heat exchange solution is highly viscous, which is conducive to attachment to the filler, increasing The contact time between the solution and the air is shortened, thereby improving the heat exchange efficiency and helping to realize the miniaturization of air-conditioning equipment.
附图说明Description of drawings
图1为实施例所涉及的空气源热泵装置的结构示意图。Fig. 1 is a schematic structural diagram of an air source heat pump device involved in an embodiment.
图中：1-压缩机，2-冷凝器/蒸发器，3-膨胀阀，4-蒸发器/冷凝器，5-溶液换热单元，51-溶液泵，52-换热芯体，53-溶液槽，54-溶液管路，6-水泵。In the figure: 1-compressor, 2-condenser/evaporator, 3-expansion valve, 4-evaporator/condenser, 5-solution heat exchange unit, 51-solution pump, 52-heat exchange core, 53- Solution tank, 54-solution pipeline, 6-water pump.
具体实施方式Detailed ways
下面结合附图和实施例对本发明做进一步说明。The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
一种无需除霜且外输冷或热水的空气源热泵装置，其结构示意图如图1所示，包括：压缩机1，冷凝器/蒸发器2，膨胀阀3，蒸发器/冷凝器4，与流经冷凝器/蒸发器2的制冷剂交换热量的溶液换热单元5。其中，压缩机1的输出端与冷凝器/蒸发器2的制冷剂侧输入端连接，冷凝器/蒸发器2的制冷剂侧的输出端与膨胀阀3的输入端连接，膨胀阀3的输出端与压缩机1的输入端连接。冷凝器/蒸发器2的循环溶液侧与溶液换热单元5相连。蒸发器/冷凝器4与外输冷或热水循环管路连接，通过循环水与蒸发/冷凝器4换热来制取冷或热水。外输冷或热水循环管路还包括为外输冷或热水提供动力的水泵6。An air source heat pump device that does not need defrosting and outputs cold or hot water, its structural diagram is shown in Figure 1, including: compressor 1, condenser/evaporator 2, expansion valve 3, evaporator/condenser 4 , a solution heat exchange unit 5 that exchanges heat with the refrigerant flowing through the condenser/evaporator 2 . Wherein, the output end of the compressor 1 is connected to the refrigerant side input end of the condenser/evaporator 2, the refrigerant side output end of the condenser/evaporator 2 is connected to the input end of the expansion valve 3, and the output end of the expansion valve 3 The terminal is connected to the input terminal of compressor 1. The circulating solution side of the condenser/evaporator 2 is connected to a solution heat exchange unit 5 . The evaporator/condenser 4 is connected to the external cold or hot water circulation pipeline, and the cold or hot water is produced by exchanging heat with the evaporator/condenser 4 through the circulating water. The external cold or hot water circulation pipeline also includes a water pump 6 that provides power for the external cold or hot water.
溶液换热单元5包括溶液泵51、换热芯体52、溶液槽53及溶液管路54。所述溶液槽53的无机盐输出端通过溶液管路54与冷凝器/蒸发器2的循环溶液侧的输入端连接，冷凝器/蒸发器2的循环溶液侧的输出端通过溶液管路54与溶液泵51的输入端连接，溶液泵51的输出端通过溶液管路54与换热芯体52的输入端相连，最后从换热芯体52流出的溶液流回溶液槽53。The solution heat exchange unit 5 includes a solution pump 51 , a heat exchange core 52 , a solution tank 53 and a solution pipeline 54 . The inorganic salt output end of the solution tank 53 is connected with the input end of the circulating solution side of the condenser/evaporator 2 through the solution pipeline 54, and the output end of the circulating solution side of the condenser/evaporator 2 is connected with the circulating solution side through the solution pipeline 54. The input end of the solution pump 51 is connected, and the output end of the solution pump 51 is connected to the input end of the heat exchange core 52 through the solution pipeline 54 , and finally the solution flowing out of the heat exchange core 52 flows back to the solution tank 53 .
换热芯体52采用蜂窝状防腐填料填充。采用蜂窝状防腐填料的目的是有效增大溶液槽53与空气的接触面积，从而提高换热效率，减小装置体积。The heat exchange core 52 is filled with honeycomb anti-corrosion filler. The purpose of using the honeycomb anti-corrosion filler is to effectively increase the contact area between the solution tank 53 and the air, thereby improving the heat exchange efficiency and reducing the volume of the device.
优选地，溶液槽53内的溶液为无机盐溶液。无机盐溶液粘性大，有利于溶液附着于填料之上，增加溶液与空气的接触时间，从而进一步提高换热效率，有利于装置的小型化。Preferably, the solution in the solution tank 53 is an inorganic salt solution. The high viscosity of the inorganic salt solution is conducive to the attachment of the solution to the filler, increasing the contact time between the solution and the air, thereby further improving the heat exchange efficiency and facilitating the miniaturization of the device.
本发明通过采取换热溶液与流经冷凝器/蒸发器2的制冷剂交换热量，使冷凝器/蒸发器2不与空气直接接触。由于从溶液换热单元5中循环的无机盐溶液的凝固点很低，即使在寒冷的冬季冷凝器/蒸发器2也不结霜，消除了传统空气源热泵制热模式下需要除霜的烦恼，同时降低了空气源热泵的维修几率。In the present invention, the heat exchange solution is used to exchange heat with the refrigerant flowing through the condenser/evaporator 2, so that the condenser/evaporator 2 does not directly contact with the air. Since the freezing point of the inorganic salt solution circulating from the solution heat exchange unit 5 is very low, the condenser/evaporator 2 does not frost even in the cold winter, eliminating the need for defrosting in the traditional air source heat pump heating mode, At the same time, the maintenance probability of the air source heat pump is reduced.
本发明不限于上述实施方式，本领域技术人员所做出的对上述实施方式任何显而易见的改进或变更，都不会超出本发明的构思和所附权利要求的保护范围。The present invention is not limited to the above-mentioned embodiments, and any obvious improvements or changes made by those skilled in the art to the above-mentioned embodiments will not exceed the concept of the present invention and the scope of protection of the appended claims.
Claims (1)
- It is 1. a kind of without defrosting and outer defeated cold or hot water heat pump apparatus of air source, it is characterised in that including：Compressor (1), it is cold Condenser/evaporator (2), expansion valve (3), evaporator/condenser (4), exchanged with the refrigerant for flowing through condenser/evaporator (2) The solution heat exchange unit (5) of heat；Wherein, the refrigeration of the output end of the compressor (1) and the condenser/evaporator (2) The input connection of agent side, the output end of the refrigerant side of the condenser/evaporator (2) and the input of the expansion valve (3) Connection, the output end of the expansion valve (3) are connected with the input of the compressor (1)；The condenser/evaporator (2) Circulation solution side is connected with the solution heat exchange unit (5)；The evaporator/condenser (4) and outer defeated cold or hot-water circulation pipe Road connects, and the outer defeated cold or hot water circulating pipeline also includes the water pump (6) that power is provided for outer defeated cold or hot water；The solution heat exchange unit (5) includes solution pump (51), heat exchange core body (52), solution tank (53) and solution line (54)； The solution output end of the solution tank (53) is molten by the solution line (54) and the circulation of the condenser/evaporator (2) The input connection of liquid side, the output end of the circulation solution side of the condenser/evaporator (2) pass through the solution line (54) Be connected with the input of the solution pump (51), the output end of the solution pump (51) by the solution line (54) with it is described The input of heat exchange core body (52) is connected；Solution in the solution tank (53) is inorganic salt solution；The heat exchange core body (52) is filled using cellular anticorrosive packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510828864.7A CN105299954B (en) | 2015-11-25 | 2015-11-25 | Without defrosting and outer defeated cold or hot water heat pump apparatus of air source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510828864.7A CN105299954B (en) | 2015-11-25 | 2015-11-25 | Without defrosting and outer defeated cold or hot water heat pump apparatus of air source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105299954A CN105299954A (en) | 2016-02-03 |
| CN105299954B true CN105299954B (en) | 2018-02-06 |
Family
ID=55197515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510828864.7A Expired - Fee Related CN105299954B (en) | 2015-11-25 | 2015-11-25 | Without defrosting and outer defeated cold or hot water heat pump apparatus of air source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105299954B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114440449B (en) * | 2022-03-01 | 2023-10-03 | 温岭煌格科技咨询有限公司 | An air-energy water heater with frost prediction and defrost functions and its use method |
| CN115264560A (en) * | 2022-07-29 | 2022-11-01 | 湖南东尤水汽能节能有限公司 | Water vapor energy heat pump air conditioning device soaked with evaporator |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3855695B2 (en) * | 2001-07-23 | 2006-12-13 | 松下電器産業株式会社 | Heat pump water heater |
| CN102116537A (en) * | 2011-03-29 | 2011-07-06 | 清华大学 | Solution spray type heat pump set |
| CN102141279A (en) * | 2011-03-29 | 2011-08-03 | 广州市华德工业有限公司 | Solution-spraying type air-conditioner heat pump unit |
| CN103486680B (en) * | 2013-09-23 | 2016-04-20 | 广东西屋康达空调有限公司 | A kind of energy-saving Frostless air-source air conditioner heat pump system |
| CN203908108U (en) * | 2014-05-15 | 2014-10-29 | 中国瑞林工程技术有限公司 | Wet-type frostless device of air source heat pump unit |
| CN104713266A (en) * | 2015-03-25 | 2015-06-17 | 湖南大学 | Heat pump type cold and heat source unit capable of achieving frost-free and evaporative cooling |
| CN104819594B (en) * | 2015-04-30 | 2017-05-17 | 南京理工大学 | Frozen regenerated solution defrost heat pump unit |
| CN205227928U (en) * | 2015-11-25 | 2016-05-11 | 北京华宏环能科技有限公司 | Need not defrosting and outer defeated cold or hydrothermal air source heat pump device |
-
2015
- 2015-11-25 CN CN201510828864.7A patent/CN105299954B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN105299954A (en) | 2016-02-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201764750U (en) | Water-source heat pump cold and hot water energy-saving device for recovering condensation heat of central air-conditioning units | |
| CN101344291A (en) | A high-efficiency energy-saving air-conditioning system for district cooling and its implementation method | |
| CN205174615U (en) | Air source multiple air conditioner heat pump system | |
| WO2014201973A1 (en) | Energy-saving water-cooled air-conditioner | |
| CN202613556U (en) | Ground source heat pump heating system utilizing heating terminals for free cooling | |
| CN207035380U (en) | The air-conditioning system of station air draft water resource heat pump and heat supply network complementation combined heat | |
| CN101634501A (en) | Frost-free type air source heat pump system | |
| CN101382352A (en) | Double-effect ground source heat pump unit | |
| CN102147170B (en) | Water-cooling multi-split air-conditioning system with triple co-generation and central air-conditioning system | |
| CN101832607B (en) | Shallow rock soil energy-storing and temperature-restoring system | |
| CN105299954A (en) | Air source heat pump device free from defrosting and capable of outputting cold or hot water | |
| CN204285668U (en) | A kind of bilateral large temperature difference air-conditioning system | |
| CN204404414U (en) | Source, a kind of ground heating air-conditioner heat pump | |
| CN104075395B (en) | Water air-conditioning system with airflow cooler coupled with phase-change radiator | |
| CN209588254U (en) | A kind of conditioner with natural cold sources and air refrigeration system | |
| CN201318759Y (en) | Non-compressor non-energy-consumption refrigeration energy-saving device for geothermal-energy thermal pump central air conditioner | |
| CN202328570U (en) | Chilled water system for central air-conditioning system | |
| CN206683135U (en) | A kind of ice-chilling air conditioning system | |
| CN205227928U (en) | Need not defrosting and outer defeated cold or hydrothermal air source heat pump device | |
| CN104279752A (en) | Heat recovery type efficient low-temperature air source heat pump system | |
| CN202675511U (en) | Heat pump air conditioner with heat recovery function | |
| CN203413874U (en) | Heat recovery air conditioner of air source heat pump | |
| CN203258721U (en) | Multifunctional air source floor heating heat pump | |
| CN208186681U (en) | Energy Conservation in Hotel water-saving system based on UTILIZATION OF VESIDUAL HEAT IN and ice storage technology | |
| CN205807709U (en) | A kind of data center module pipe direct cooling heat energy-saving appliance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180206 |