CN219433524U - Multi-energy lifting heat pump system - Google Patents
Multi-energy lifting heat pump system Download PDFInfo
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- CN219433524U CN219433524U CN202320424002.8U CN202320424002U CN219433524U CN 219433524 U CN219433524 U CN 219433524U CN 202320424002 U CN202320424002 U CN 202320424002U CN 219433524 U CN219433524 U CN 219433524U
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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
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
The utility model discloses a multi-energy lifting heat pump system, wherein during heating, a compressor outlet is connected with a heat exchanger at a demand end through a four-way valve, and then is connected with an interface at the outer side of an environment heat exchanger through a plate-type economizer and an electronic expansion valve; the inner side interface of the environment heat exchanger is connected with the inlet of the compressor through the four-way valve and the external heat source heat exchanger, or is connected with the inlet of the compressor through the external heat source heat exchanger and the four-way valve; during defrosting, the outlet of the compressor is connected with the interface on the inner side of the environment heat exchanger through the four-way valve, the interface on the outer side of the environment heat exchanger is connected with the second interface of the heat exchanger on the demand end through the electronic expansion valve and the plate economizer, and the heat exchanger on the demand end is connected with the inlet of the compressor through the four-way valve and the external heat source heat exchanger; or the outlet of the compressor is connected with the inner side interface of the environment heat exchanger through the four-way valve and the external heat source heat exchanger, the outer side interface of the environment heat exchanger is connected with the second interface of the demand end heat exchanger through the electronic expansion valve and the plate-type economizer, and the first interface of the demand end heat exchanger is connected with the inlet of the compressor through the four-way valve.
Description
Technical Field
The utility model relates to the technical field of heat pump systems, in particular to a multi-energy lifting heat pump system.
Background
The heat pump system is used as a system capable of adjusting indoor environment temperature, outdoor low-grade heat is directly collected by utilizing a heat source, the indoor environment temperature is reduced or increased through the state conversion of a refrigerant between circulation pipelines through high pressure/low pressure/gas/liquid state, namely, the heat pump air conditioning system is in a refrigerating or heating mode from the perspective of an indoor unit. In a heating mode, the heat pump air conditioning system directly collects outdoor low-grade heat by using a heat source, extracts energy from low-temperature air with high relative humidity to supply heat, and provides a stable heat source for the heat pump system.
In the conventional single compressor heat pump system, the system is mainly suitable for the environment with the temperature difference of less than 30 ℃ because of the compression ratio of the compressor and the limitation of the refrigerant, but when the difference between the outdoor environment temperature and the temperature required by the indoor unit heat exchanger is more than 40 ℃, the heating or refrigerating effect of the system is unsatisfactory. For example, in northeast or plateau areas of our country, the outdoor temperature in winter can reach below-20 ℃ at the lowest, and even local areas can reach below-40 ℃ in extreme weather. Under such circumstances, the conventional single compressor heat pump air conditioning system is basically stopped, and obviously cannot meet the indoor heating requirement. In addition, the heat pump unit sets up high temperature heating under long-term low temperature condition, because the compressor exhaust temperature is too high, compression ratio is too big, not only can not reach the requirement of leaving water temperature, but also leads to a large amount of burnout of compressor.
A large amount of low-grade heat sources such as PVT solar heat sources, industrial waste heat, building waste heat, living waste heat, sewage waste heat and the like are often generated in daily life and work production, and are generally unavailable and can be directly discharged into the environment, so that the emission of greenhouse gases is increased.
Disclosure of Invention
The utility model aims to provide a multi-energy lifting heat pump system, which improves the temperature of a basic heat source of the heat pump system and the working efficiency of a compressor by reasonably utilizing a low-grade heat source, ensures that waste heat is reasonably utilized, does not need to be discharged into the environment, and reduces the emission of greenhouse gases.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
a multi-energy boost heat pump system:
(1) During heating, an outlet pipeline of the compressor is connected with a first interface of a heat exchanger at a demand end through a four-way valve, and a second interface of the heat exchanger at the demand end is connected with an outer interface of an environment heat exchanger through a plate-type economizer and a first electronic expansion valve; the inner side interface of the environment heat exchanger is connected with an inlet pipeline of the compressor through the four-way valve and the external heat source heat exchanger, or the inner side interface of the environment heat exchanger is connected with the inlet pipeline of the compressor through the external heat source heat exchanger and the four-way valve;
(2) During defrosting, an outlet pipeline of the compressor is connected with an inner side interface of an environment heat exchanger through a four-way valve, an outer side interface of the environment heat exchanger is connected with a second interface of the demand end heat exchanger through a first electronic expansion valve and a plate-type economizer, and a first interface of the demand end heat exchanger is connected with an inlet pipeline of the compressor through the four-way valve and an external heat source heat exchanger;
or when defrosting, the outlet pipeline of the compressor is connected with the inner side interface of the environment heat exchanger through the four-way valve and the external heat source heat exchanger, the outer side interface of the environment heat exchanger is connected with the second interface of the demand end heat exchanger through the first electronic expansion valve and the plate-type economizer, and the first interface of the demand end heat exchanger is connected with the inlet pipeline of the compressor through the four-way valve.
The first interface of the plate type economizer is connected with the enthalpy increasing port of the compressor, the second interface of the plate type economizer is connected with the second interface of the heat exchanger at the demand end, the fourth interface of the plate type economizer is connected with the first electronic expansion valve, and the third interface of the plate type economizer is connected with the fourth interface of the plate type economizer and a pipeline between the first electronic expansion valve through the second electronic expansion valve.
The external heat source heat exchanger and the external heat source component form a circulating passage of an external heat source heating medium together through a pump.
The heat source of the external heat source component is a low-grade heat source and comprises PVT solar photovoltaic heat sources, solar photo-thermal heat sources, industrial waste heat, building waste heat, living waste heat or sewage waste heat and other heat sources.
The external heat source assembly is a solar photovoltaic power generation assembly, a heating medium outlet of the solar photovoltaic power generation assembly is connected with a heating medium inlet of the external heat source heat exchanger through a pump, and a heating medium outlet of the external heat source heat exchanger is connected with a heating medium inlet of the solar photovoltaic power generation assembly.
Further, during heating, an outlet pipeline of the compressor is connected with a first interface of the four-way valve, a fourth interface of the four-way valve is connected with a first interface of the demand end heat exchanger, a second interface of the demand end heat exchanger is connected with a second interface of the plate-type economizer, the first interface of the plate-type economizer is connected with an enthalpy-increasing port of the compressor, the fourth interface of the plate-type economizer is connected with the first electronic expansion valve, and the third interface of the plate-type economizer is connected with the fourth interface of the plate-type economizer and the pipeline between the first electronic expansion valves through the second electronic expansion valve; the first electronic expansion valve is connected with an outer side interface of the environment heat exchanger; the inner side interface of the environment heat exchanger is connected with the second interface of the four-way valve, the third interface of the four-way valve is connected with the refrigerant inlet of the external heat source heat exchanger, and the refrigerant outlet of the external heat source heat exchanger is connected with the inlet pipeline of the compressor.
Or when heating, the outlet pipeline of the compressor is connected with the first interface of the four-way valve, the fourth interface of the four-way valve is connected with the first interface of the heat exchanger at the demand end, the second interface of the heat exchanger at the demand end is connected with the second interface of the plate-type economizer, the first interface of the plate-type economizer is connected with the enthalpy-increasing port of the compressor, the fourth interface of the plate-type economizer is connected with the first electronic expansion valve, and the third interface of the plate-type economizer is connected with the fourth interface of the plate-type economizer and the pipeline between the first electronic expansion valves through the second electronic expansion valve; the first electronic expansion valve is connected with an outer side interface of the environment heat exchanger; the inner side interface of the environment heat exchanger is connected with the refrigerant inlet of the external heat source heat exchanger, the refrigerant outlet of the external heat source heat exchanger is connected with the second interface of the four-way valve, and the third interface of the four-way valve is connected with the inlet pipeline of the compressor.
Further, during defrosting, an outlet pipeline of the compressor is connected with a first interface of the four-way valve, a second interface of the four-way valve is connected with an inner interface of the environment heat exchanger, an outer interface of the environment heat exchanger is connected with a fourth interface of the plate type economizer through the first electronic expansion valve, a second interface of the plate type economizer is connected with a second interface of the demand end heat exchanger, the first interface of the plate type economizer is connected with an enthalpy increasing port of the compressor, and a third interface of the plate type economizer is connected with the fourth interface of the plate type economizer and a pipeline between the first electronic expansion valves through the second electronic expansion valve; the first interface of the demand end heat exchanger is connected with the fourth interface of the four-way valve, the third interface of the four-way valve is connected with the refrigerant inlet of the external heat source heat exchanger, and the refrigerant outlet of the external heat source heat exchanger is connected with the inlet pipeline of the compressor.
Or when defrosting, the outlet pipeline of the compressor is connected with the first interface of the four-way valve, the second interface of the four-way valve is connected with the refrigerant outlet of the external heat source heat exchanger, the refrigerant inlet of the external heat source heat exchanger is connected with the inner interface of the environment heat exchanger, the outer interface of the environment heat exchanger is connected with the fourth interface of the plate-type economizer through the first electronic expansion valve, the second interface of the plate-type economizer is connected with the second interface of the demand-end heat exchanger, the first interface of the plate-type economizer is connected with the enthalpy-increasing port of the compressor, and the third interface of the plate-type economizer is connected with the fourth interface of the plate-type economizer and the pipeline between the first electronic expansion valves through the second electronic expansion valve; the first interface of the demand end heat exchanger is connected with the fourth interface of the four-way valve, and the third interface of the four-way valve is connected with an inlet pipeline of the compressor.
Compared with the prior art, the utility model has the outstanding effects that:
(1) The multi-energy lifting heat pump system can effectively utilize low-grade heat sources such as building waste heat, living waste heat, production equipment waste heat, sewage waste heat and the like, obtain more efficient heat sources through heat exchange, and can provide equipment and places with heat source requirements such as winter living heating, living hot water, industrial production heat sources, industrial cleaning heat sources, biological cultivation heating, biological fermentation heating, agriculture forestry seedling raising and the like.
(2) The multi-energy lifting heat pump system improves the utilization of a low-grade heat source through the heat pump compressor, increases the heating efficiency of the heat pump, and improves the temperature of a basic heat source of the heat pump. After the heat pump acquires a heat source through the convection of the fins and the air, the heat pump heats the low-grade heat source provided by the heat exchanger again, the temperature of the refrigerant is increased, and then the high-temperature heat source is output to the heat exchanger through the compressor.
(3) The multi-energy lifting heat pump system can effectively utilize low-grade heat sources such as PVT solar heat sources, industrial waste heat, building waste heat, living waste heat, sewage waste heat, heat sources and the like, and can obtain the grade heat sources suitable for use temperature through lifting, so that the air superposition heat sources can be effectively utilized, and the air sources can also independently operate. The waste heat of the low-grade heat source is reasonably utilized, and the waste heat is not directly discharged into the environment, so that the emission of greenhouse gases is reduced.
The multi-energy boost heat pump system according to the utility model will be further described with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic diagram of a multi-energy boost heat pump system of embodiment 1 (before reversing the four-way valve);
FIG. 2 is another schematic diagram of the multi-energy boost heat pump system of embodiment 1 (after reversing the four-way valve);
fig. 3 is a schematic diagram of a multi-energy boost heat pump system of embodiment 2 (before reversing the four-way valve).
The system comprises a 1-compressor, a 2-four-way valve, a 3-first electronic expansion valve, a 4-environment heat exchanger, a 5-plate economizer, a 6-second electronic expansion valve, a 7-demand end heat exchanger, an 8-solar photovoltaic power generation assembly, a 9-water pump and a 10-external heat source heat exchanger.
Detailed Description
Example 1
As shown in fig. 1, in a multi-energy lifting heat pump system, during heating, an outlet pipeline of a compressor 1 is connected with a first interface of a demand end heat exchanger 7 through a four-way valve 2, and a second interface of the demand end heat exchanger 7 is connected with an outer interface of an environment heat exchanger 4 through a plate economizer 5 and a first electronic expansion valve 3; the inner side interface of the environment heat exchanger 4 is connected with an inlet pipeline of the compressor 1 through the four-way valve 2 and the external heat source heat exchanger 10.
As shown in fig. 2, during defrosting, the outlet pipeline of the compressor 1 is connected with the inner side interface of the environmental heat exchanger 4 through the four-way valve 2, the outer side interface of the environmental heat exchanger 4 is connected with the second interface of the demand side heat exchanger 7 through the first electronic expansion valve 3 and the plate economizer 5, and the first interface of the demand side heat exchanger 7 is connected with the inlet pipeline of the compressor 1 through the four-way valve 2 and the external heat source heat exchanger 10.
The first port b1 of the plate economizer 5 is connected with the enthalpy increasing port of the compressor 1, the second port b2 of the plate economizer 5 is connected with the second port of the demand side heat exchanger 7, the fourth port b4 of the plate economizer 5 is connected with the first electronic expansion valve 3, and the third port b3 of the plate economizer 5 is connected with a pipeline between the fourth port b4 of the plate economizer 5 and the first electronic expansion valve 3 through the second electronic expansion valve 6.
The external heat source heat exchanger 10 and the external heat source assembly together constitute a circulation path of an external heat source heating medium via the pump 9. In this embodiment, the external heat source component is a solar photovoltaic power generation component 8, a heating medium outlet of the solar photovoltaic power generation component 8 is connected with a heating medium inlet c3 of an external heat source heat exchanger 10 through a pump 9, and a heating medium outlet c1 of the external heat source heat exchanger 10 is connected with a heating medium inlet of the solar photovoltaic power generation component 8. Wherein, the heating medium can be water or antifreeze.
The solar photovoltaic power generation component can adopt a product shown as CN202121838756.5, a runner backboard and a solar photovoltaic cogeneration component thereof or CN202222861451.7, a photovoltaic cogeneration component.
In other beneficial embodiments, the external heat source may also be selected from other heat sources including solar photo-thermal heat source, industrial waste heat, building waste heat, living waste heat or sewage waste heat, etc., and only the heating medium or heat dissipation medium in the components of these external heat sources is connected with the external heat source heat exchanger 10 through the pump 9 to form a circulation path.
Specifically, as shown in fig. 1, during heating, an outlet pipeline of the compressor 1 is connected with a first interface a1 of the four-way valve 2, a fourth interface a4 of the four-way valve 2 is connected with a first interface of the demand side heat exchanger 7, a second interface of the demand side heat exchanger 7 is connected with a second interface b2 of the plate economizer 5, the first interface b1 of the plate economizer 5 is connected with an enthalpy increasing port of the compressor 1, the fourth interface b4 of the plate economizer 5 is connected with the first electronic expansion valve 3, and a third interface b3 of the plate economizer 5 is connected with a pipeline between the fourth interface b4 of the plate economizer 5 and the first electronic expansion valve 3 through the second electronic expansion valve 6; the first electronic expansion valve 3 is connected with an outer side interface of the environment heat exchanger 4; the inner side interface of the environment heat exchanger 4 is connected with the second interface a2 of the four-way valve 2, the third interface a3 of the four-way valve 2 is connected with the refrigerant inlet c4 of the external heat source heat exchanger 10, and the refrigerant outlet c2 of the external heat source heat exchanger 10 is connected with an inlet pipeline of the compressor 1.
As shown in fig. 2, during defrosting, an outlet pipeline of the compressor 1 is connected with a first interface a1 of the four-way valve 2, a second interface a2 of the four-way valve 2 is connected with an inner interface of the environment heat exchanger 4, an outer interface of the environment heat exchanger 4 is connected with a fourth interface b4 of the plate economizer 5 through the first electronic expansion valve 3, the second interface b2 of the plate economizer 5 is connected with a second interface of the demand side heat exchanger 7, the first interface b1 of the plate economizer 5 is connected with an enthalpy increasing port of the compressor 1, and a third interface b3 of the plate economizer 5 is connected with a pipeline between the fourth interface b4 of the plate economizer 5 and the first electronic expansion valve 3 through the second electronic expansion valve 6; the first interface of the demand-side heat exchanger 7 is connected with the fourth interface a4 of the four-way valve 2, the third interface a3 of the four-way valve 2 is connected with the refrigerant inlet c4 of the external heat source heat exchanger 10, and the refrigerant outlet c2 of the external heat source heat exchanger 10 is connected with an inlet pipeline of the compressor 1.
The environmental heat exchanger 4 may be located indoors or outdoors. When the indoor unit is placed outdoors, the indoor unit and the outdoor unit are separated.
When the enthalpy-increasing scroll compressor is applied to a heat pump system with a plate-type economizer, the supercooling degree is improved, so that the refrigerating capacity of the system is improved, and the refrigerating efficiency is improved. The enthalpy-increasing injection improves the compression ratio, so that the system can greatly improve the heating capacity output in cold winter.
The working method of the multi-energy lifting heat pump system comprises the following steps:
during heating, the refrigerant is compressed by the compressor 1, sequentially enters the second interface b2 of the plate-type economizer 5 through the first interface and the fourth interface of the four-way valve 2 and the demand end heat exchanger 7, flows out of the fourth interface b4 of the plate-type economizer 5, sequentially passes through the second electronic expansion valve 6, the third interface b3 of the plate-type economizer 5 and the first interface b1 of the plate-type economizer 5 through adjusting the first electronic expansion valve 3 and the second electronic expansion valve 6, and part of the refrigerant directly enters the enthalpy increasing port of the compressor 1, and the other part of the refrigerant returns to the inlet of the compressor 1 through the first electronic expansion valve 3, the environment heat exchanger 4, the four-way valve second interface a2, the four-way valve third interface a3 and the external heat source heat exchanger 10, so that the refrigerant is continuously circulated.
After the temperature of the refrigerant is raised by the environment heat exchanger 4, the refrigerant is fully heat-exchanged with the heating medium of the external heat source heat exchanger 10 by the external heat source heat exchanger 10, so that the temperature is further raised, the basic heat source temperature of the heat pump is raised, the outlet temperature of the compressor is higher, and the heating efficiency of the heat pump is improved.
When the external environment temperature is low, the plate economizer 5 can further reduce the temperature of the refrigerant, so that the refrigerant can fully exchange heat in the environment heat exchanger. By adjusting the opening degree of the first electronic expansion valve 3 and the second electronic expansion valve 6, a part of refrigerant can enter the plate-type economizer 5 through the second electronic expansion valve 6, the refrigerant flowing into the plate-type economizer 5 from the second interface b2 of the plate-type economizer 5 can be further cooled, and then compressed by the compressor and returned to the demand side heat exchanger 7; and the other part of refrigerant enters the environment heat exchanger through the first electronic expansion valve 3.
During defrosting, the refrigerant is compressed by the compressor 1, sequentially enters the first electronic expansion valve 3 through the first interface a1 and the second interface a2 of the four-way valve 2 and the environment heat exchanger 4, and part of the refrigerant sequentially enters the enthalpy-increasing port of the compressor 1 through the second electronic expansion valve 6, the third interface b3 of the plate-type economizer 5 and the first interface b1 of the plate-type economizer 5 by adjusting the first electronic expansion valve 3 and the second electronic expansion valve 6, and the other part of the refrigerant is continuously circulated through the fourth interface b4 of the plate-type economizer 5, the second interface b2 of the plate-type economizer 5, the demand side heat exchanger 7, the fourth interface a4 and the third interface a3 of the four-way valve 2 and the external heat source heat exchanger 10 to return to the inlet of the compressor 1.
Example 2
As shown in fig. 3, the difference from embodiment 1 is that the connection order of the environment heat exchanger 4, the external heat source heat exchanger 10 and the four-way valve 2 is different, and the connection relationship and the operation principle of other components are the same. The method comprises the following steps:
in the heating process, as shown in fig. 3, an outlet pipeline of a compressor 1 is connected with a first interface of a demand end heat exchanger 7 through a four-way valve 2, and a second interface of the demand end heat exchanger 7 is connected with an outer interface of an environment heat exchanger 4 through a plate economizer 5 and a first electronic expansion valve 3; the inner side interface of the environment heat exchanger 4 is connected with an inlet pipeline of the compressor 1 through an external heat source heat exchanger 10 and the four-way valve 2.
During defrosting, an outlet pipeline of the compressor 1 is connected with an inner side interface of the environment heat exchanger 4 through the four-way valve 2 and the external heat source heat exchanger 10, an outer side interface of the environment heat exchanger 4 is connected with a second interface of the demand end heat exchanger 7 through the first electronic expansion valve 3 and the plate economizer 5, and a first interface of the demand end heat exchanger 7 is connected with an inlet pipeline of the compressor 1 through the four-way valve 2.
Further, as shown in fig. 3, during heating, an outlet pipeline of the compressor 1 is connected with a first interface a1 of the four-way valve 2, a fourth interface a4 of the four-way valve 2 is connected with a first interface of the demand side heat exchanger 7, a second interface of the demand side heat exchanger 7 is connected with a second interface b2 of the plate economizer 5, the first interface b1 of the plate economizer 5 is connected with an enthalpy increasing port of the compressor 1, the fourth interface b4 of the plate economizer 5 is connected with the first electronic expansion valve 3, and a third interface b3 of the plate economizer 5 is connected with a pipeline between the fourth interface b4 of the plate economizer 5 and the first electronic expansion valve 3 through the second electronic expansion valve 6; the first electronic expansion valve 3 is connected with an outer side interface of the environment heat exchanger 4; the inner side interface of the environment heat exchanger 4 is connected with a refrigerant inlet c4 of the external heat source heat exchanger 10, a refrigerant outlet c2 of the external heat source heat exchanger 10 is connected with a second interface a2 of the four-way valve 2, and a third interface a3 of the four-way valve 2 is connected with an inlet pipeline of the compressor 1.
During defrosting, an outlet pipeline of the compressor 1 is connected with a first interface a1 of the four-way valve 2, a second interface a2 of the four-way valve 2 is connected with a refrigerant outlet c2 of the external heat source heat exchanger 10, a refrigerant inlet c4 of the external heat source heat exchanger 10 is connected with an inner interface of the environment heat exchanger 4, an outer interface of the environment heat exchanger 4 is connected with a fourth interface b4 of the plate economizer 5 through the first electronic expansion valve 3, a second interface b2 of the plate economizer 5 is connected with a second interface of the demand end heat exchanger 7, the first interface b1 of the plate economizer 5 is connected with an enthalpy increasing port of the compressor 1, and a third interface b3 of the plate economizer 5 is connected with a pipeline between the fourth interface b4 of the plate economizer 5 and the first electronic expansion valve 3 through the second electronic expansion valve 6; the first port of the demand side heat exchanger 7 is connected with the fourth port a4 of the four-way valve 2, and the third port a3 of the four-way valve 2 is connected with an inlet pipeline of the compressor 1.
The working method of the multi-energy lifting heat pump system specifically comprises the following steps:
as shown in fig. 3, during heating, the refrigerant is compressed by the compressor 1, sequentially enters the second port b2 of the plate economizer 5 through the first port a1 and the fourth port a4 of the four-way valve 2 and the demand side heat exchanger 7, flows out of the fourth port b4 of the plate economizer 5, sequentially passes through the first electronic expansion valve 3 and the second electronic expansion valve 6, and then, part of the refrigerant sequentially passes through the second electronic expansion valve 6, the third port b3 of the plate economizer 5 and the first port b1 of the plate economizer 5, directly enters the enthalpy increasing port of the compressor 1, and the other part of the refrigerant returns to the inlet of the compressor 1 through the first electronic expansion valve 3, the environment heat exchanger 4, the external heat source heat exchanger 10, the four-way valve second port a2 and the four-way valve third port a3, thereby continuously circulating.
During defrosting, the refrigerant is compressed by the compressor 1, sequentially enters the first electronic expansion valve 3 through the first interface a1 and the second interface a2 of the four-way valve 2, the external heat source heat exchanger 10 and the environment heat exchanger 4, and part of the refrigerant sequentially enters the enthalpy-increasing port of the compressor 1 through the second electronic expansion valve 6, the third interface b3 of the plate economizer 5 and the first interface b1 of the plate economizer 5 by adjusting the first electronic expansion valve 3 and the second electronic expansion valve 6, and the other part of the refrigerant sequentially returns to the inlet of the compressor 1 through the fourth interface b4 of the plate economizer 5, the second interface b2 of the plate economizer 5, the demand side heat exchanger 7, the fourth interface a4 of the four-way valve 2 and the third interface a3, so that the refrigerant is continuously circulated.
The above examples are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solution of the present utility model should fall within the scope of protection defined by the claims of the present utility model without departing from the spirit of the present utility model.
Claims (9)
1. A multi-energy boost heat pump system, characterized by:
when the heat-generating device is used for heating, an outlet pipeline of the compressor (1) is connected with a first interface of a demand end heat exchanger (7) through a four-way valve (2), and a second interface of the demand end heat exchanger (7) is connected with an outer side interface of an environment heat exchanger (4) through a plate-type economizer (5) and a first electronic expansion valve (3); the inner side interface of the environment heat exchanger (4) is connected with an inlet pipeline of the compressor (1) through the four-way valve (2) and the external heat source heat exchanger (10), or the inner side interface of the environment heat exchanger (4) is connected with the inlet pipeline of the compressor (1) through the external heat source heat exchanger (10) and the four-way valve (2);
(2) During defrosting, an outlet pipeline of the compressor (1) is connected with an inner side interface of the environment heat exchanger (4) through the four-way valve (2), an outer side interface of the environment heat exchanger (4) is connected with a second interface of the demand end heat exchanger (7) through the first electronic expansion valve (3) and the plate economizer (5), and a first interface of the demand end heat exchanger (7) is connected with an inlet pipeline of the compressor (1) through the four-way valve (2) and the external heat source heat exchanger (10);
or when defrosting, the outlet pipeline of the compressor (1) is connected with the inner side interface of the environment heat exchanger (4) through the four-way valve (2) and the external heat source heat exchanger (10), the outer side interface of the environment heat exchanger (4) is connected with the second interface of the demand end heat exchanger (7) through the first electronic expansion valve (3) and the plate economizer (5), and the first interface of the demand end heat exchanger (7) is connected with the inlet pipeline of the compressor (1) through the four-way valve (2).
2. The multi-energy boost heat pump system of claim 1, wherein: the first interface of the plate economizer (5) is connected with the enthalpy increasing port of the compressor (1), the second interface of the plate economizer (5) is connected with the second interface of the demand end heat exchanger (7), the fourth interface of the plate economizer (5) is connected with the first electronic expansion valve (3), and the third interface of the plate economizer (5) is connected with a pipeline between the fourth interface of the plate economizer (5) and the first electronic expansion valve (3) through the second electronic expansion valve (6).
3. The multi-energy boost heat pump system of claim 2, wherein: the external heat source heat exchanger (10) and the external heat source component form a circulating passage of an external heat source heating medium together through the pump (9).
4. A multi-energy boost heat pump system according to claim 3, wherein: the heat source of the external heat source component is a low-grade heat source and comprises PVT solar photovoltaic heat sources, solar photo-thermal heat sources, industrial waste heat, building waste heat, living waste heat or sewage waste heat.
5. The multi-energy boost heat pump system of claim 4, wherein: the external heat source component is a solar photovoltaic power generation component (8), a heating medium outlet of the solar photovoltaic power generation component (8) is connected with a heating medium inlet of the external heat source heat exchanger (10) through a pump (9), and a heating medium outlet of the external heat source heat exchanger (10) is connected with a heating medium inlet of the solar photovoltaic power generation component (8).
6. The multi-energy boost heat pump system of claim 5, wherein: during heating, an outlet pipeline of the compressor (1) is connected with a first interface of the four-way valve (2), a fourth interface of the four-way valve (2) is connected with a first interface of the demand end heat exchanger (7), a second interface of the demand end heat exchanger (7) is connected with a second interface of the plate-type economizer (5), the first interface of the plate-type economizer (5) is connected with an enthalpy-increasing port of the compressor (1), the fourth interface of the plate-type economizer (5) is connected with the first electronic expansion valve (3), and a third interface of the plate-type economizer (5) is connected with the fourth interface of the plate-type economizer (5) and a pipeline between the first electronic expansion valves (3) through the second electronic expansion valve (6); the first electronic expansion valve (3) is connected with an outer side interface of the environment heat exchanger (4); the inner side interface of the environment heat exchanger (4) is connected with the second interface of the four-way valve (2), the third interface of the four-way valve (2) is connected with the refrigerant inlet of the external heat source heat exchanger (10), and the refrigerant outlet of the external heat source heat exchanger (10) is connected with the inlet pipeline of the compressor (1).
7. The multi-energy boost heat pump system of claim 5, wherein: during heating, an outlet pipeline of the compressor (1) is connected with a first interface of the four-way valve (2), a fourth interface of the four-way valve (2) is connected with a first interface of the demand end heat exchanger (7), a second interface of the demand end heat exchanger (7) is connected with a second interface of the plate-type economizer (5), the first interface of the plate-type economizer (5) is connected with an enthalpy-increasing port of the compressor (1), the fourth interface of the plate-type economizer (5) is connected with the first electronic expansion valve (3), and a third interface of the plate-type economizer (5) is connected with the fourth interface of the plate-type economizer (5) and a pipeline between the first electronic expansion valves (3) through the second electronic expansion valve (6); the first electronic expansion valve (3) is connected with an outer side interface of the environment heat exchanger (4); the inner side interface of the environment heat exchanger (4) is connected with the refrigerant inlet of the external heat source heat exchanger (10), the refrigerant outlet of the external heat source heat exchanger (10) is connected with the second interface of the four-way valve (2), and the third interface of the four-way valve (2) is connected with the inlet pipeline of the compressor (1).
8. The multi-energy boost heat pump system of claim 5, wherein: during defrosting, an outlet pipeline of the compressor (1) is connected with a first interface of the four-way valve (2), a second interface of the four-way valve (2) is connected with an inner side interface of the environment heat exchanger (4), an outer side interface of the environment heat exchanger (4) is connected with a fourth interface of the plate-type economizer (5) through the first electronic expansion valve (3), a second interface of the plate-type economizer (5) is connected with a second interface of the demand-end heat exchanger (7), a first interface of the plate-type economizer (5) is connected with an enthalpy-increasing port of the compressor (1), and a third interface of the plate-type economizer (5) is connected with a fourth interface of the plate-type economizer (5) and a pipeline between the first electronic expansion valve (3) through the second electronic expansion valve (6); the first interface of the demand end heat exchanger (7) is connected with the fourth interface of the four-way valve (2), the third interface of the four-way valve (2) is connected with the refrigerant inlet of the external heat source heat exchanger (10), and the refrigerant outlet of the external heat source heat exchanger (10) is connected with the inlet pipeline of the compressor (1).
9. The multi-energy boost heat pump system of claim 5, wherein: during defrosting, an outlet pipeline of the compressor (1) is connected with a first interface of the four-way valve (2), a second interface of the four-way valve (2) is connected with a refrigerant outlet of the external heat source heat exchanger (10), a refrigerant inlet of the external heat source heat exchanger (10) is connected with an inner interface of the environment heat exchanger (4), an outer interface of the environment heat exchanger (4) is connected with a fourth interface of the plate-type economizer (5) through the first electronic expansion valve (3), a second interface of the plate-type economizer (5) is connected with a second interface of the demand-end heat exchanger (7), the first interface of the plate-type economizer (5) is connected with an enthalpy-increasing port of the compressor (1), and a third interface of the plate-type economizer (5) is connected with the fourth interface of the plate-type economizer (5) and a pipeline between the first electronic expansion valve (3) through the second electronic expansion valve (6); the first interface of the demand end heat exchanger (7) is connected with the fourth interface of the four-way valve (2), and the third interface of the four-way valve (2) is connected with an inlet pipeline of the compressor (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202320424002.8U CN219433524U (en) | 2023-03-08 | 2023-03-08 | Multi-energy lifting heat pump system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320424002.8U CN219433524U (en) | 2023-03-08 | 2023-03-08 | Multi-energy lifting heat pump system |
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| CN219433524U true CN219433524U (en) | 2023-07-28 |
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| CN202320424002.8U Active CN219433524U (en) | 2023-03-08 | 2023-03-08 | Multi-energy lifting heat pump system |
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