CN213901583U - A new type of defrosting device applied to air source heat pump units - Google Patents
A new type of defrosting device applied to air source heat pump units Download PDFInfo
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- CN213901583U CN213901583U CN202023292323.2U CN202023292323U CN213901583U CN 213901583 U CN213901583 U CN 213901583U CN 202023292323 U CN202023292323 U CN 202023292323U CN 213901583 U CN213901583 U CN 213901583U
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Abstract
本实用新型涉及空气源热泵机组除霜技术领域，且公开了一种应用于空气源热泵机组的新型除霜装置，包括空气源热泵机组，所述空气源热泵机组的内部设置有蒸发器、压缩机、冷凝器。本实用新型通过根据蒸发器的室外翅片换热器结霜情况，利用旁通比例调节装置、室外环境温度传感器、室外翅片换热器盘管温度传感器相互配合智能调节压缩机旁通到蒸发器的制冷剂流量，实现高效除霜的装置使用效果，使得机组运行更加稳定可靠，并且可在空气源热泵机组正常制热运行时进行，空气源热泵机组无需频繁启停压缩机以及频繁换向，使机组运行更加稳定可靠，同时也不会因机组除霜而影响到用户对空调的舒适性体验。
The utility model relates to the technical field of defrosting of air source heat pump units, and discloses a novel defrosting device applied to air source heat pump units. machine, condenser. According to the frosting condition of the outdoor fin heat exchanger of the evaporator, the utility model uses the bypass proportional adjustment device, the outdoor ambient temperature sensor and the outdoor fin heat exchanger coil temperature sensor to cooperate with each other to intelligently adjust the bypass of the compressor to the evaporator. The refrigerant flow of the air source heat pump can be adjusted to achieve the effect of efficient defrosting, which makes the operation of the unit more stable and reliable, and can be carried out during the normal heating operation of the air source heat pump unit. The air source heat pump unit does not need to frequently start and stop the compressor and frequently change directions. , so that the unit operation is more stable and reliable, and at the same time, the user's comfort experience of the air conditioner will not be affected by the defrosting of the unit.
Description
Technical Field
The utility model relates to an air source heat pump set defrosting technical field specifically is a novel defroster who is applied to air source heat pump set.
Background
The air source heat pump is one of heat pump technologies, has multiple advantages of low use cost, easy operation, good heating effect, safety, cleanness and the like, adopts the main principle that energy in the air is used as main power, drives the compressor to operate through a small amount of electric energy, realizes energy transfer, does not need complex configuration, expensive water taking, recharging or soil heat exchange systems and special machine rooms, can gradually reduce the emission of a large amount of pollutants caused by the traditional heating to the atmospheric environment, and realizes the purposes of energy conservation and environmental protection while ensuring the heating effect.
When present air source heat pump set heats the operation in winter, outdoor fin heat exchanger frosting phenomenon can appear in inevitable, and to the current two kinds of solution ways of problem of frosting, firstly the switching-over defrosting: during defrosting, the compressor is stopped firstly, then the four-way reversing valve is reversed, the compressor directly discharges hot gas into the outdoor fin heat exchanger, and frost on fins is melted, so that a defrosting effect is achieved, however, the defrosting device using the principle can be started and stopped frequently, particularly in an environment with easy frosting, the four-way reversing valve is reversed frequently, the service life of a unit is greatly shortened, and the comfort experience of a user on an air conditioner is influenced; secondly, hot gas bypass defrosting: during the defrosting, through in directly mixing the outdoor finned heat exchanger with the high temperature high-pressure gas in the exhaust to play the defrosting effect, but utilize the defroster of this kind of principle, can cause the heat transfer state of heat absorption side to produce very big fluctuation, influence holistic heat transfer effect, to sum up the problem of frosting can both be solved to two kinds of modes, but all have very big problem, for this reason, this application then provides a novel defroster who is applied to air source heat pump set.
SUMMERY OF THE UTILITY MODEL
The utility model provides a be applied to air source heat pump set's novel defroster, solved the problem that above-mentioned background art provided to the not enough of prior art.
The utility model provides a following technical scheme: the utility model provides a be applied to air source heat pump unit's novel defroster, includes air source heat pump unit, air source heat pump unit's inside is provided with evaporimeter, compressor, condenser, the surface of evaporimeter fixed mounting respectively has outdoor fin heat exchanger coil pipe temperature sensor and outdoor ambient temperature sensor, be provided with bypass proportion adjusting device between evaporimeter and the compressor, be provided with electronic expansion valve between condenser and the evaporimeter.
And carefully selecting, wherein a heating circulating refrigerant heat exchange flow channel is arranged on the air outlet side of the evaporator, a bypass refrigerant heat exchange flow channel is added to form the outdoor fin heat exchanger, and the heating circulating refrigerant heat exchange flow channel and the bypass refrigerant heat exchange flow channel are fixedly connected together.
Carefully selecting, the interior of the condenser comprises an indoor side fin heat exchanger, and the condenser is fixedly connected with the compressor through a heat-resisting conduit.
Carefully, the bypass proportion adjusting device comprises a controller, a bypass pipe and a proportion control valve, and the bypass pipe and the proportion control valve are fixedly installed together.
Carefully, the outdoor fin heat exchanger coil temperature sensor, the outdoor environment temperature sensor and the bypass proportion adjusting device are electrically connected through conducting wires, and the detection temperatures of the outdoor environment temperature sensor and the outdoor fin heat exchanger coil temperature sensor are respectively set to be T1 and T2.
Compared with the prior art, the utility model discloses possess following beneficial effect:
1. the utility model discloses an outdoor finned heat exchanger condition of frosting according to the evaporimeter, utilize bypass proportion adjusting device, outdoor environmental temperature sensor, outdoor finned heat exchanger coil pipe temperature sensor mutually supports the refrigerant flow that intelligent regulation compressor bypassed the evaporimeter, realize the device result of use of high-efficient defrosting, make the unit operation more reliable and more stable, and can go on when air source heat pump unit normally heats the operation, air source heat pump unit need not frequently to open and stop compressor and frequent switching-over, make the unit operation more reliable and more stable, the while also can not influence the user because of the unit defrosting and experience the comfort of air conditioner.
2. The utility model discloses a bypass proportion adjustment mechanism that bypass proportion adjustment device, outdoor ambient temperature sensor, outdoor fin heat exchanger coil pipe temperature sensor constitute realizes the intelligent defrosting control to air source heat pump set, and the system fluctuation is little for air source heat pump set works under being in stable running state always, reduces the problem of the heating capacity decay of air source heat pump set because of frosting the appearance by a wide margin.
Drawings
FIG. 1 is a schematic view of the structure and operation principle of the present invention;
fig. 2 is a schematic front view of the heat exchange flow channel of the heating cycle refrigerant of the present invention.
In the figure: 1. an air source heat pump unit; 2. an evaporator; 3. an outdoor fin heat exchanger coil temperature sensor; 4. an outdoor ambient temperature sensor; 5. an electronic expansion valve; 6. a bypass ratio adjustment device; 7. a compressor; 8. a condenser; 9. a heating cycle refrigerant heat exchange flow channel; 10. bypassing the refrigerant heat exchange flow path.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, a novel defrosting device applied to an air source heat pump unit comprises an air source heat pump unit 1, an evaporator 2, a compressor 7 and a condenser 8 are arranged in the air source heat pump unit 1, a heating cycle refrigerant heat exchange flow channel 9 is arranged on the air outlet side of the evaporator 2, a bypass refrigerant heat exchange flow channel 10 is added to form an outdoor fin heat exchanger, the heating cycle refrigerant heat exchange flow channel 9 is fixedly connected with the bypass refrigerant heat exchange flow channel 10, the heating cycle refrigerant heat exchange flow channel 9 and the bypass refrigerant heat exchange flow channel 10 provide a heat exchange space for the whole equipment, so as to ensure the successful implementation of the defrosting function of the subsequent device, an indoor fin heat exchanger is arranged in the condenser 8, the condenser 8 is fixedly connected with the compressor 7 through a heat-resistant conduit, which provides a stable space condition for the transportation of high-pressure high-temperature gas of the subsequent compressor 7, the stability of the device is ensured, the surface of the evaporator 2 is respectively and fixedly provided with an outdoor fin heat exchanger coil temperature sensor 3 and an outdoor environment temperature sensor 4, a bypass proportion adjusting device 6 is arranged between the evaporator 2 and a compressor 7, an electronic expansion valve 5 is arranged between a condenser 8 and the evaporator 2, the bypass proportion adjusting device 6 is internally provided with a controller, a bypass pipe and a proportion control valve, the bypass pipe and the proportion control valve are fixedly arranged together, the bypass proportion adjusting device 6, the outdoor environment temperature sensor 4 and the outdoor fin heat exchanger coil temperature sensor 3 are mutually matched to intelligently adjust the refrigerant flow bypassing the compressor 7 to the evaporator 2, the use effect of the device for efficiently defrosting is realized, the running of a unit is more stable and reliable, the outdoor fin heat exchanger coil temperature sensor 3, the outdoor environment temperature sensor 4 and the bypass proportion adjusting device 6 are electrically connected through leads, and the detection temperatures of the outdoor environment temperature sensor 4 and the outdoor fin heat exchanger coil temperature sensor 3 are respectively set to be T1 and T2, the intelligent defrosting control of the air source heat pump unit 1 is realized through a bypass proportion adjusting mechanism consisting of the bypass proportion adjusting device 6, the outdoor environment temperature sensor 4 and the outdoor fin heat exchanger coil temperature sensor 3, the system fluctuation is small, the air source heat pump unit 1 is enabled to work in a stable running state all the time, and the problem that the heating capacity of the air source heat pump unit 1 is attenuated due to frosting is greatly reduced.
The working principle is as follows: when the heat pump unit is used, the heat pump unit is carried out simultaneously in two steps, firstly, the heat circulation flow of the internal system of the air source heat pump unit 1 is that high-temperature and high-pressure gas discharged by the compressor 7 enters the inside of the condenser 8, the refrigerant is condensed to release heat and becomes high-pressure supercooled liquid, then the high-pressure supercooled liquid is throttled and depressurized by the electronic expansion valve 5 and becomes low-temperature and low-pressure supercooled liquid, the low-temperature and low-pressure supercooled liquid enters the inside of the evaporator 2, the refrigerant is evaporated to absorb heat by the evaporator 2 and becomes low-temperature and low-pressure gas, and the low-temperature and low-pressure gas returns to the compressor 7 again to complete the heating circulation; the second is a defrosting operation process, the flow of the refrigerant which is bypassed from the high-temperature high-pressure gas discharged from the compressor 7 to the inside of the evaporator 2 is controlled by the bypass proportion adjusting device 6, the refrigerant which is bypassed to the evaporator 2 enters the bypass refrigerant heat exchange flow passage 10 inside the evaporator 2 to exchange heat with the air flowing through the evaporator 2, so that the temperature of the air rises to above 0 ℃, then the air flows through the heating circulation refrigerant heat exchange flow passage 9 to exchange heat, and finally the defrosting purpose is achieved, the opening degree of the proportion control valve inside the bypass proportion adjusting device 6 is controlled by the detection temperature T1 of the outdoor environment temperature sensor 4, the detection temperature T2 of the evaporator 2 and the defrosting entrance temperature setting value T3, and the defrosting temperature difference setting value T4, specifically, the bypass proportion adjusting device 6 is opened, the closing condition needs to simultaneously meet the following opening conditions, either condition is not satisfied shutdown: t2 < T1, T2 < T3, compressor running time greater than minimum press running time, and bypass proportioning device 6 proportioning conditions are as follows: firstly, if T1-T2 > T4+1, the opening degree is increased; secondly, if T1-T2 is less than T4-1, the opening degree is reduced; thirdly, if T4-1 is not less than T1-T2 is not less than T4+1, the opening degree is not changed, and in conclusion, intelligent defrosting is performed under the condition that the air source heat pump unit 1 is not stopped.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Simultaneously in the utility model discloses an in the drawing, fill the pattern and just do not do any other injecions for distinguishing the picture layer.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a be applied to air source heat pump set's novel defroster, includes air source heat pump set (1), its characterized in that: the air source heat pump unit is characterized in that an evaporator (2), a compressor (7) and a condenser (8) are arranged inside the air source heat pump unit (1), the surface of the evaporator (2) is respectively and fixedly provided with an outdoor fin heat exchanger coil pipe temperature sensor (3) and an outdoor environment temperature sensor (4), a bypass proportion adjusting device (6) is arranged between the evaporator (2) and the compressor (7), and an electronic expansion valve (5) is arranged between the condenser (8) and the evaporator (2).
2. The novel defrosting device applied to the air source heat pump unit according to claim 1, characterized in that: the air outlet side of the evaporator (2) is provided with a heating circulating refrigerant heat exchange runner (9), a bypass refrigerant heat exchange runner (10) is added to form an outdoor fin heat exchanger, and the heating circulating refrigerant heat exchange runner (9) is fixedly connected with the bypass refrigerant heat exchange runner (10).
3. The novel defrosting device applied to the air source heat pump unit according to claim 1, characterized in that: the condenser (8) comprises an indoor side fin heat exchanger, and the condenser (8) is fixedly connected with the compressor (7) through a heat-resistant guide pipe.
4. The novel defrosting device applied to the air source heat pump unit according to claim 1, characterized in that: the bypass proportional regulating device (6) comprises a controller, a bypass pipe and a proportional control valve, and the bypass pipe and the proportional control valve are fixedly installed together.
5. The novel defrosting device applied to the air source heat pump unit according to claim 1, characterized in that: outdoor fin heat exchanger coil pipe temperature sensor (3), outdoor ambient temperature sensor (4) and bypass proportion adjusting device (6) pass through wire electric connection, and outdoor ambient temperature sensor (4) and outdoor fin heat exchanger coil pipe temperature sensor's (3) detection temperature establish respectively as T1 and T2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023292323.2U CN213901583U (en) | 2020-12-30 | 2020-12-30 | A new type of defrosting device applied to air source heat pump units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023292323.2U CN213901583U (en) | 2020-12-30 | 2020-12-30 | A new type of defrosting device applied to air source heat pump units |
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| CN213901583U true CN213901583U (en) | 2021-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023292323.2U Active CN213901583U (en) | 2020-12-30 | 2020-12-30 | A new type of defrosting device applied to air source heat pump units |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115031439A (en) * | 2022-06-16 | 2022-09-09 | 江苏省华扬太阳能有限公司 | High-efficiency defrosting heat pump type large and medium air conditioning device |
-
2020
- 2020-12-30 CN CN202023292323.2U patent/CN213901583U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115031439A (en) * | 2022-06-16 | 2022-09-09 | 江苏省华扬太阳能有限公司 | High-efficiency defrosting heat pump type large and medium air conditioning device |
| CN115031439B (en) * | 2022-06-16 | 2023-07-14 | 江苏省华扬太阳能有限公司 | Heat pump type large and medium air conditioner with efficient defrosting |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.958, Ming'an Road, Huangdao District, Qingdao City, Shandong Province 266000 Patentee after: Qingdao Aolikai Energy Co.,Ltd. Address before: No.958, Ming'an Road, Huangdao District, Qingdao City, Shandong Province 266000 Patentee before: QINGDAO ALKKT CENTRAL AIR CONDITIONER CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder |