CN216307963U - Large-temperature-difference compact energy-saving heat pump system - Google Patents
Large-temperature-difference compact energy-saving heat pump system Download PDFInfo
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- CN216307963U CN216307963U CN202123060544.1U CN202123060544U CN216307963U CN 216307963 U CN216307963 U CN 216307963U CN 202123060544 U CN202123060544 U CN 202123060544U CN 216307963 U CN216307963 U CN 216307963U
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Abstract
The invention relates to the technical field of heat pump energy conservation, in particular to a large-temperature-difference compact energy-saving heat pump system which comprises a compressor a, a condenser b, a compressor b, an evaporator a and an evaporator b. According to the large-temperature-difference compact energy-saving heat pump system, the evaporator is cooled in a segmented mode, the condenser is heated in a segmented mode, the evaporation temperature and the condensation temperature of the system a and the system b can be designed in a segmented mode, the system a can operate at a high evaporation temperature and a high condensation temperature, and the system b can operate at a low evaporation temperature and a low condensation temperature. The flow direction of the secondary refrigerant of the condenser and the evaporator is reversely arranged, the two systems have approximately the same pressure difference of suction and exhaust, the operation of the press is more stable, the system a has higher evaporation temperature, and the system b has lower condensation temperature, so that the performance coefficient of the whole system is improved, the energy-saving effect is achieved, and in addition, the evaporator connecting device and the condenser connecting device enable the whole system to be more compact, and the appearance effect of the unit is better.
Description
Technical Field
The invention relates to the technical field of heat pump energy conservation, in particular to a large-temperature-difference compact energy-saving heat pump system.
Background
As the national controls on air quality become more stringent, coal fired boiler heating will become increasingly prohibited. The current alternatives are mainly various heat pump systems and heating using natural gas. With the international environmental protection requirement of carbon neutralization, the use of natural gas is also limited, which expands the space for the popularization and application of heat pump technology. In the prior art, the temperature difference between the circulating water inlet and the circulating water outlet on the cooling side is designed to be 10 ℃ (such as floor radiation heating), if one-time heating is adopted, both heat pump systems need to operate at a higher condensation temperature, and thus the coefficient of performance of the system is relatively low. Similarly, the temperature difference between the inlet and the outlet of the circulating water at the freezing (heat source) side is larger than 8 ℃, if one-time temperature reduction and heat extraction is adopted, both heat pump systems operate at a lower evaporation temperature, so that the coefficient of performance of the system is relatively lower.
Therefore, the invention provides a large-temperature-difference compact energy-saving heat pump system.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a large-temperature-difference compact energy-saving heat pump system.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a compact energy-saving heat pump system of big difference in temperature, includes compressor a, condenser b, compressor b, evaporimeter an and evaporimeter b, condenser a passes through condenser connecting device and is connected with condenser b, evaporimeter a passes through evaporimeter connecting device and is connected with evaporimeter b, compressor a's gas vent and compressor b's gas vent all are connected with condenser a's air inlet and condenser b's air inlet respectively through pipeline a, compressor a's induction port and compressor b's induction port all are connected with evaporimeter a's gas outlet and evaporimeter b's gas outlet respectively through pipeline b, condenser a's liquid outlet and condenser b's liquid outlet all are connected with evaporimeter a's inlet and evaporimeter b's inlet respectively through pipeline c, install the expansion valve on the pipeline c.
Specifically, the compressor a, the condenser a and the evaporator a form a system a.
Specifically, the compressor b, the condenser b and the evaporator b form a system b.
The invention has the beneficial effects that:
according to the large-temperature-difference compact energy-saving heat pump system, the evaporator is cooled in a segmented mode, the condenser is heated in a segmented mode, the evaporation temperature and the condensation temperature of the system a and the system b can be designed in a segmented mode, the system a can operate at a high evaporation temperature and a high condensation temperature, and the system b can operate at a low evaporation temperature and a low condensation temperature. The flow direction of the secondary refrigerant of the condenser and the evaporator is reversely arranged, the two systems have approximately the same pressure difference of suction and exhaust, the press operates more stably, the system a has higher evaporation temperature, and the system b has lower condensation temperature, so that the performance coefficient of the whole system is improved, and the energy-saving effect is achieved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic view of the overall structure of a large-temperature-difference compact energy-saving heat pump system provided by the invention.
In the figure: 1. a compressor a; 2. a condenser a; 3. a condenser b; 4. a condenser connecting device; 5. a compressor b; 6. an evaporator a; 7. an evaporator connecting device; 8. an evaporator b; 9. an expansion valve.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1, the compact energy-saving heat pump system with large temperature difference according to the present invention includes a compressor a1, a condenser a2, a condenser b3, a compressor b5, an evaporator a6 and an evaporator b8, the condenser a2 is connected to the condenser b3 through a condenser connecting device 4, the evaporator a6 is connected to the evaporator b8 through an evaporator connecting device 7, an exhaust port of the compressor a1 and an exhaust port of the compressor b5 are connected to an air inlet of the condenser a2 and an air inlet of the condenser b3 through a pipe a, an air inlet of the compressor a1 and an air inlet of the compressor b5 are connected to an air outlet of the evaporator a6 and an air outlet of the evaporator b8 through a pipe b, an liquid outlet of the condenser a2 and a liquid outlet of the condenser b3 are connected to a liquid inlet of the evaporator a6 and a liquid inlet of the evaporator b8 through a pipe c, and an expansion valve 9 is installed on the pipe c.
Specifically, the compressor a1, the condenser a2, and the evaporator a6 constitute a system a.
Specifically, the compressor b5, the condenser b3 and the evaporator b8 constitute a system b.
The refrigerant circulates, the high-temperature and high-pressure refrigerant gas from the exhaust port of the compressor a1 enters the condenser a2 through the air inlet of the condenser a2, is cooled in the condenser a2 to become refrigerant liquid, enters the liquid outlet of the condenser a2, then enters the evaporator a6 through the expansion valve 9 and the liquid inlet of the evaporator a6, absorbs heat in the evaporator a6 to become refrigerant vapor, and then enters the air inlet of the compressor a1 through the air outlet of the evaporator a6 to complete one refrigerant cycle of the system. High-temperature and high-pressure refrigerant gas which also flows out of an exhaust port of the compressor b5 enters the condenser b3 through an air inlet of the condenser b3, is cooled in the condenser b3 to become refrigerant liquid, enters a liquid outlet of the condenser b3, then enters the evaporator b8 through the expansion valve 9 and a liquid inlet of the evaporator b8, absorbs heat in the evaporator b8 to become refrigerant vapor, and then enters an air inlet of the compressor b5 through an air outlet of the evaporator b8 to complete a refrigerant cycle of the system b.
And water circulation, wherein low-temperature cooling water enters the condenser b3 through a water inlet of the condenser b3, flows through a heat exchange tube of the condenser b3, enters the condenser b3 through a connecting device of the condenser b3, flows through the heat exchange tube in the condenser a2, and finally flows out through a water outlet of the condenser a 2.
The high-temperature chilled water enters the evaporator a6 through the water inlet of the evaporator a6, flows through the heat exchange tubes on the evaporator a6, enters the evaporator b8 through the evaporator connecting device 7, flows through the heat exchange tubes in the evaporator b8 and finally flows out through the water outlet of the evaporator b 8.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (1)
1. The utility model provides a compact energy-saving heat pump system of big difference in temperature, its characterized in that includes compressor a (1), condenser a (2), condenser b (3), compressor b (5), evaporimeter a (6) and evaporimeter b (8), condenser a (2) are connected with condenser b (3) through condenser connecting device (4), evaporimeter a (6) are connected with evaporimeter b (8) through evaporimeter connecting device (7), the gas vent of compressor a (1) and the gas vent of compressor b (5) all are connected with the air inlet of condenser a (2) and the air inlet of condenser b (3) respectively through pipeline a, the induction port of compressor a (1) and the induction port of compressor b (5) all are connected with the gas outlet of evaporimeter a (6) and the gas outlet of evaporimeter b (8) respectively through pipeline b, the liquid outlet of condenser a (2) and the liquid outlet of condenser b (3) all are connected with the inlet of evaporimeter a (6) and the inlet of evaporimeter b (8) respectively through pipeline c, install expansion valve (9) on the pipeline c.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123060544.1U CN216307963U (en) | 2021-12-07 | 2021-12-07 | Large-temperature-difference compact energy-saving heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123060544.1U CN216307963U (en) | 2021-12-07 | 2021-12-07 | Large-temperature-difference compact energy-saving heat pump system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216307963U true CN216307963U (en) | 2022-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123060544.1U Active CN216307963U (en) | 2021-12-07 | 2021-12-07 | Large-temperature-difference compact energy-saving heat pump system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216307963U (en) |
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2021
- 2021-12-07 CN CN202123060544.1U patent/CN216307963U/en active Active
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