CN210832351U - Multifunctional combined type air conditioner heat pump system for refrigeration and heat supply - Google Patents
Multifunctional combined type air conditioner heat pump system for refrigeration and heat supply Download PDFInfo
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- CN210832351U CN210832351U CN201921267318.0U CN201921267318U CN210832351U CN 210832351 U CN210832351 U CN 210832351U CN 201921267318 U CN201921267318 U CN 201921267318U CN 210832351 U CN210832351 U CN 210832351U
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Abstract
The utility model relates to an air conditioner condensation heat recovery technical field, more specifically relates to a multi-functional combined type air conditioner heat pump system of refrigeration heat supply, including compressor, condenser, three-way valve, first choke valve, first evaporimeter, first check valve, second choke valve, second evaporimeter and second check valve; the air outlet of the compressor is connected with the inlet of the condenser, and the outlet of the condenser is divided into a first branch and a second branch by a three-way valve; the first branch is connected with the inlet of a first evaporator through a first throttling valve, and the outlet of the first evaporator is connected with the air suction port of the compressor through a first one-way valve; the second branch is connected with the inlet of a second evaporator through a second throttling valve, and the outlet of the second evaporator is connected with the air suction port of the compressor through a second one-way valve; the first evaporator is a refrigeration evaporator, and the second evaporator is a heat pump evaporator. The utility model discloses realize effectively retrieving the heat of condensation when cryogenic and prepare hot water, satisfy life and use the heat demand.
Description
Technical Field
The utility model relates to an air conditioner condensation heat recovery technical field, more specifically relates to a multi-functional combined type air conditioner heat pump system of refrigeration heat supply.
Background
The existing air conditioning refrigerating unit product in the current market not only influences the surrounding environment but also fails to recycle the condensation heat by directly releasing the condensation heat to the environment or indirectly releasing the condensation heat to the environment through a cooling tower during refrigeration. On the other hand, most of the existing products can only supply cold or heat independently. In order to recycle the condensation heat, some scholars research and put forward more effective measures. For example, in the invention patent of chinese patent application publication No. CN 109405334 a, a two-stage compression technology is adopted, and high-temperature hot water is obtained by recovering the compression heat of a low-pressure system through a high-pressure system; the invention patent of the Chinese patent authorization publication No. CN 105890227B realizes that cold water is prepared and condensation heat is recycled step by step to obtain high-temperature hot water at 60 ℃ through four refrigeration subsystems. The patents can effectively recover condensation heat and prepare hot water while refrigerating, but have the characteristic of complex system, and meanwhile, when the heat supply of the patent CN 109405334A is more than the refrigerating capacity in summer, the requirement is difficult to meet due to the limitation of the requirement of refrigerating capacity; and the patent CN 105890227B is not suitable for the requirements of medium and small-sized projects.
Disclosure of Invention
The utility model discloses aim at overcoming at least some defect among the above-mentioned prior art, provide a multi-functional combined type air conditioner heat pump system of refrigeration heat supply, the system is simple, effectively retrieves the condensation heat when realizing the refrigerated and prepares hot water, satisfies life and uses the heat demand.
In order to achieve the purpose, the utility model adopts the technical proposal that: the multifunctional combined type air-conditioning heat pump system for refrigeration and heating comprises a compressor, a condenser, a three-way valve, a first throttle valve, a first evaporator, a first one-way valve, a second throttle valve, a second evaporator and a second one-way valve; the air outlet of the compressor is connected with the inlet of the condenser, and the outlet of the condenser is divided into a first branch and a second branch by a three-way valve; the first branch is connected with the inlet of a first evaporator through a first throttling valve, and the outlet of the first evaporator is connected with the air suction port of the compressor through a first one-way valve; the second branch is connected with the inlet of a second evaporator through a second throttling valve, and the outlet of the second evaporator is connected with the air suction port of the compressor through a second one-way valve; the first evaporator is a refrigeration evaporator, and the second evaporator is a heat pump evaporator.
The first evaporator can produce cold water or cold air to meet the cold supply requirement; the second evaporator can obtain air heat, water body heat such as sewage or underground water and the like or low-grade waste heat.
In the scheme, when the loops of the first branch and the second branch are both circulated, the heat pump system has a condensation heat recovery type refrigeration and heat pump composite function, can recover condensation heat to prepare hot water when cold energy is prepared, and simultaneously obtains water body heat such as air heat, sewage or underground water or low-grade waste heat supplement heat through the second evaporator to prepare more hot water, so that more heat requirements are met, and the heat pump system is mainly applied to a working condition that the heat requirement is greater than the condensation heat; when the loop of the first branch circuit circulates and the loop of the second branch circuit does not circulate, the heat pump system has a condensation heat recovery type refrigeration function, can realize that cold water or cold air is prepared, and hot water is prepared by recovering condensation heat so as to meet the requirement of heat supply, and is mainly applied to the working conditions that cold and hot requirements are met, the matching degree of cold and hot is high, and the condensation heat energy completely meets the requirement of heat utilization; when the loop of the first branch is not circulated and the loop of the second branch is circulated, the heat pump system has a heat pump function, is a common air source or water source heat pump, and can be used for preparing hot water by obtaining water body heat such as air heat, sewage or underground water and the like or low-grade waste heat to meet the heat supply requirement, and is mainly applied to the working condition that the cold quantity requirement is temporarily absent but the heat quantity requirement exists; this heat pump system is simple, utilizes the three-way valve to divide into two branches with the high-pressure refrigerant liquid of condenser export and sets up, and circulation through different branch road place loops realizes multi-functional combined type heat pump, effectively retrieves the condensation heat when realizing the refrigerated and prepares hot water, satisfies the life and uses the heat demand.
Preferably, the condenser further comprises a liquid storage device for connecting the outlet of the condenser with a three-way valve, and the outlet of the liquid storage device is divided into the first branch and the second branch through the three-way valve; the accumulator is used for storing refrigerant. The arrangement of the liquid storage device meets the requirements of different branches on the refrigerant when the loops circulate.
Preferably, the three-way valve is a three-way proportional regulating valve for regulating the refrigerant flow of the first branch and the second branch. The setting can carry out accurate regulation and control to first branch road and second branch road refrigerant flow like this, realizes the decoupling zero between cold volume and heat, makes cold and hot volume demand each other not influence, and furthest recycle the heat of condensation when refrigerating satisfies different operating mode demands, and energy-conserving benefit is showing.
Preferably, the first evaporator is a finned tube, plate, tube-in-tube or shell-and-tube heat exchanger.
Preferably, the second evaporator is a finned tube, plate, tube-in-tube or shell-and-tube heat exchanger.
When the air-conditioning heat pump system is used, the following three working modes are adopted:
the working mode I is a condensation heat recovery type refrigeration and heat pump composite operation mode:
the first one-way valve and the second one-way valve are opened, high-temperature and high-pressure refrigerant gas discharged by the compressor enters the condenser, the high-temperature and high-pressure refrigerant gas in the condenser transfers heat to cold water to prepare hot water, and high-pressure refrigerant liquid at the outlet of the condenser is divided into two paths through the three-way valve; the first branch enters a first evaporator after being throttled by a first throttle valve, and cold water or cold air is extracted and made into low-pressure low-temperature steam in the first evaporator; the second branch enters a second evaporator after being throttled by a second throttle valve, and external heat is absorbed in the second evaporator to become low-pressure low-temperature steam; the low-pressure low-temperature steam of the first branch and the second branch respectively enters the air suction port of the compressor after passing through the first one-way valve and the second one-way valve, and the circulation process is completed; the external heat absorbed in the second evaporator comprises air heat, water body heat such as sewage or underground water and the like or low-grade waste heat;
working mode two-condensation heat recovery type refrigeration running mode:
the first one-way valve is opened, the second one-way valve is closed, high-temperature and high-pressure refrigerant gas discharged by the compressor enters the condenser, the high-temperature and high-pressure refrigerant gas in the condenser transfers heat to cold water to prepare hot water, high-pressure refrigerant liquid at the outlet of the condenser enters the first branch after passing through the three-way valve, the first branch enters the first evaporator after being throttled by the first throttle valve, the heat is absorbed in the first evaporator to prepare the cold water or cold air into low-pressure and low-temperature steam, and the low-pressure and low-temperature steam in the first branch enters the air suction port of the compressor after passing through the first one-way valve, so that;
working mode three-heat pump operation mode:
the first one-way valve is closed, the second one-way valve is opened, high-temperature and high-pressure refrigerant gas discharged by the compressor enters the condenser, the high-temperature and high-pressure refrigerant gas in the condenser transfers heat to cold water to prepare hot water, high-pressure refrigerant liquid at the outlet of the condenser enters the second branch after passing through the three-way valve, the second branch enters the second evaporator after being throttled by the second throttling valve, external heat is absorbed in the second evaporator to form low-pressure and low-temperature steam, and the low-pressure and low-temperature steam in the second branch enters the air suction port of the compressor after passing through the second one-way valve, so that the cycle; the external heat absorbed in the second evaporator comprises air heat, water body heat such as sewage or underground water and the like or low-grade waste heat.
The working mode I is a condensation heat recovery type refrigeration and heat pump composite running mode, condensation heat can be recovered to prepare hot water when cold energy is prepared, and meanwhile, water body heat such as air heat, sewage or underground water or low-grade waste heat supplement heat is obtained through the second evaporator to prepare more hot water, so that more heat requirements are met, and the working mode I is mainly applied to the working condition that the heat requirement is greater than the condensation heat; the working mode II is a condensation heat recovery type refrigeration running mode, can realize that hot water is prepared by recovering condensation heat while cold water or cold air is prepared, so as to meet the requirement of heat supply, and is mainly applied to the working conditions that cold and heat requirements are met, the matching degree of cold and heat is high, and the condensation heat energy completely meets the requirement of heat utilization; the working mode three-heat pump running mode is a common air source or water source heat pump, hot water is prepared by acquiring air heat, sewage or underground water and other water body heat or low-grade waste heat to meet the heat supply requirement, and the working mode three-heat pump running mode is mainly applied to the working condition that the cold quantity requirement is temporarily absent but the heat quantity requirement is present; the utility model discloses realize effectively retrieving the heat of condensation when cryogenic and prepare hot water, satisfy life and use the heat demand.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses utilize the three-way valve to divide into two branches with the high-pressure refrigerant liquid of condenser export and set up, through the circulation of different branch road place loops, realize multi-functional combined type heat pump, effectively retrieve the heat of condensation when realizing the refrigerated and prepare hot water, satisfy the domestic heat demand.
Drawings
Fig. 1 is a schematic view of a multifunctional combined type air conditioning heat pump system for refrigeration and heating according to embodiment 1.
Fig. 2 is a schematic diagram of an operation mode when the air-conditioning heat pump system is used, namely a condensation heat recovery type refrigeration and heat pump combined operation mode.
FIG. 3 is a schematic view of a two-condensing heat recovery type cooling operation mode in an operation mode when the air conditioning heat pump system is used; where the grey part indicates a no flow-through loop.
FIG. 4 is a schematic diagram of an operating mode of the air conditioning heat pump system, a three-heat pump mode of operation; where the grey part indicates a no flow-through loop.
The attached drawings are as follows: 101 compressor, 102 condenser, 103 accumulator, 104 three-way valve, 201 first throttle valve, 202 first evaporator, 203 first check valve, 301 second throttle valve, 302 second evaporator, 303 second check valve.
Detailed Description
The drawings of the present invention are for illustration purposes only and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; certain well-known structures in the drawings and possible omissions of their description will be apparent to those skilled in the art.
Examples
As shown in fig. 1, the present embodiment provides a multifunctional combined type air conditioning heat pump system for refrigeration and heating, which includes a compressor 101, a condenser 102, a three-way valve 104, a first throttle 201, a first evaporator 202, a first check valve 203, a second throttle 301, a second evaporator 302, and a second check valve 303; the exhaust port of the compressor 101 is connected with the inlet of a condenser 102, and the outlet of the condenser 102 is divided into a first branch and a second branch by a three-way valve 104; the first branch is connected with the inlet of a first evaporator 202 through a first throttle valve 201, and the outlet of the first evaporator 202 is connected with the air suction port of the compressor 101 through a first one-way valve 203; the second branch is connected with the inlet of a second evaporator 302 through a second throttle valve 301, and the outlet of the second evaporator 302 is connected with the suction port of the compressor 101 through a second one-way valve 303; the first evaporator 202 is a refrigeration evaporator and the second evaporator 302 is a heat pump evaporator.
In this embodiment, the first evaporator 202 can produce cold water or cold air to meet the cooling requirement; the second evaporator 302 can obtain air heat, water heat such as sewage or underground water, or low-grade waste heat.
In this embodiment, when the loops where the first branch and the second branch are located are both circulated, the heat pump system has a combined function of condensation heat recovery type refrigeration and heat pump, and can recover condensation heat to prepare hot water when cold energy is prepared, and simultaneously, the second evaporator 302 is used to obtain water body heat such as air heat, sewage or underground water or low-grade waste heat to supplement heat to prepare more hot water, so as to meet more heat requirements, and is mainly applied to a working condition that the heat requirement is greater than the condensation heat; when the loop of the first branch circuit circulates and the loop of the second branch circuit does not circulate, the heat pump system has a condensation heat recovery type refrigeration function, can realize that cold water or cold air is prepared, and hot water is prepared by recovering condensation heat so as to meet the requirement of heat supply, and is mainly applied to the working conditions that cold and hot requirements are met, the matching degree of cold and hot is high, and the condensation heat energy completely meets the requirement of heat utilization; when the loop of the first branch is not circulated and the loop of the second branch is circulated, the heat pump system has a heat pump function, is a common air source or water source heat pump, and can be used for preparing hot water by obtaining water body heat such as air heat, sewage or underground water and the like or low-grade waste heat to meet the heat supply requirement, and is mainly applied to the working condition that the cold quantity requirement is temporarily absent but the heat quantity requirement exists; the heat pump system is simple, the high-pressure refrigerant liquid at the outlet of the condenser 102 is divided into two branches by the three-way valve 104 to be arranged, and the multifunctional combined heat pump is realized through circulation of loops where different branches are located, so that the condensing heat is effectively recovered while refrigeration is realized to prepare hot water, and the heat demand of life and use is met.
The condenser comprises a condenser 102, a three-way valve 104, a liquid storage device 103 and a control device, wherein the liquid storage device 103 is used for connecting an outlet of the condenser 102 with the three-way valve 104, and an outlet of the liquid storage device 103 is divided into the first branch and the second branch through the three-way valve 104; the accumulator 103 is used to store refrigerant. The accumulator 103 is arranged to meet the requirement of refrigerant when the loops of different branches circulate.
In addition, the three-way valve 104 is a three-way proportional regulating valve for regulating the refrigerant flow of the first branch and the second branch. The setting can carry out accurate regulation and control to first branch road and second branch road refrigerant flow like this, realizes the decoupling zero between cold volume and heat, makes cold and hot volume demand each other not influence, and furthest recycle the heat of condensation when refrigerating satisfies different operating mode demands, and energy-conserving benefit is showing.
In this embodiment, the first evaporator 202 is a finned tube, plate, tube-in-tube, or shell-and-tube heat exchanger.
In this embodiment, the second evaporator 302 is a finned tube, plate, tube-in-tube, or shell-and-tube heat exchanger.
When the air-conditioning heat pump system is used, the following three working modes are adopted:
the working mode I is a condensation heat recovery type refrigeration and heat pump composite operation mode:
as shown in fig. 2, when the first check valve 203 and the second check valve 303 are opened, that is, when the loops of the first branch and the second branch are both circulated, the high-temperature and high-pressure refrigerant gas discharged from the compressor 101 enters the condenser 102, the high-temperature and high-pressure refrigerant gas in the condenser 102 transfers heat to cold water to prepare hot water, and the high-pressure refrigerant liquid at the outlet of the condenser 102 is divided into two paths by the three-way valve 104; the first branch enters the first evaporator 202 after being throttled by the first throttle valve 201, and the heat is absorbed in the first evaporator 202 to prepare cold water or cold air into low-pressure low-temperature steam; the second branch enters a second evaporator 302 after being throttled by a second throttle valve 301, and external heat is absorbed in the second evaporator 302 to become low-pressure low-temperature steam; the low-pressure low-temperature steam of the first branch and the second branch respectively enters the air suction port of the compressor 101 after passing through the first check valve 203 and the second check valve 303, and the circulation process is completed; the external heat absorbed in the second evaporator 302 includes air heat, water heat such as sewage or underground water, or low-grade waste heat; working mode two-condensation heat recovery type refrigeration running mode:
as shown in fig. 3, the first check valve 203 is opened, the second check valve 303 is closed, that is, the loop where the first branch is located circulates, and when the loop where the second branch is located does not circulate, the high-temperature and high-pressure refrigerant gas discharged from the compressor 101 enters the condenser 102, the high-temperature and high-pressure refrigerant gas in the condenser 102 transfers heat to cold water to prepare hot water, the high-pressure refrigerant liquid at the outlet of the condenser 102 enters the first branch after passing through the three-way valve 104, the first branch enters the first evaporator 202 after being throttled by the first throttle valve 201, heat is absorbed in the first evaporator 202 to prepare cold water or cold air into low-pressure and low-temperature steam, and the low-pressure and low-temperature steam in the first branch enters the air inlet of the compressor 101 after passing through the first check valve;
working mode three-heat pump operation mode:
as shown in fig. 4, the first check valve 203 is closed, the second check valve 303 is opened, that is, the loop where the first branch is located is not circulated, when the loop where the second branch is located is circulated, the high-temperature and high-pressure refrigerant gas discharged from the compressor 101 enters the condenser 102, the high-temperature and high-pressure refrigerant gas in the condenser 102 transfers heat to cold water to prepare hot water, the high-pressure refrigerant liquid at the outlet of the condenser 102 enters the second branch after passing through the three-way valve 104, the second branch enters the second evaporator 302 after being throttled by the second throttle valve 301, external heat is absorbed in the second evaporator 302 to become low-pressure and low-temperature steam, and the low-pressure and low-temperature steam in the second branch enters the air inlet of the compressor 101 after passing through the second check valve; the external heat absorbed in the second evaporator 302 includes air heat, water heat such as sewage or underground water, or low-grade waste heat.
The working mode I is a condensation heat recovery type refrigeration and heat pump composite running mode, condensation heat can be recovered to prepare hot water when cold energy is prepared, and meanwhile, water body heat such as air heat, sewage or underground water or low-grade waste heat supplement heat is obtained through the second evaporator 302 to prepare more hot water, so that more heat requirements are met, and the working mode I is mainly applied to the working condition that the heat requirement is greater than the condensation heat; the working mode II is a condensation heat recovery type refrigeration running mode, can realize that hot water is prepared by recovering condensation heat while cold water or cold air is prepared, so as to meet the requirement of heat supply, and is mainly applied to the working conditions that cold and heat requirements are met, the matching degree of cold and heat is high, and the condensation heat energy completely meets the requirement of heat utilization; the working mode three-heat pump running mode is a common air source or water source heat pump, hot water is prepared by acquiring air heat, sewage or underground water and other water body heat or low-grade waste heat to meet the heat supply requirement, and the working mode three-heat pump running mode is mainly applied to the working condition that the cold quantity requirement is temporarily absent but the heat quantity requirement is present; the utility model discloses realize effectively retrieving the heat of condensation when cryogenic and prepare hot water, satisfy life and use the heat demand.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not limitations to the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims (5)
1. The multifunctional combined type air-conditioning heat pump system for refrigeration and heating is characterized by comprising a compressor (101), a condenser (102), a three-way valve (104), a first throttle valve (201), a first evaporator (202), a first one-way valve (203), a second throttle valve (301), a second evaporator (302) and a second one-way valve (303); an exhaust port of the compressor (101) is connected with an inlet of the condenser (102), and an outlet of the condenser (102) is divided into a first branch and a second branch through a three-way valve (104); the first branch is connected with the inlet of a first evaporator (202) through a first throttle valve (201), and the outlet of the first evaporator (202) is connected with the air suction port of the compressor (101) through a first one-way valve (203); the second branch is connected with the inlet of a second evaporator (302) through a second throttling valve (301), and the outlet of the second evaporator (302) is connected with the air suction port of the compressor (101) through a second one-way valve (303); the first evaporator (202) is a refrigeration evaporator and the second evaporator (302) is a heat pump evaporator.
2. A multifunctional combined type air-conditioning heat pump system for refrigeration and heating according to claim 1, further comprising a reservoir (103) for connecting an outlet of the condenser (102) with a three-way valve (104), wherein the outlet of the reservoir (103) is divided into the first branch and the second branch by the three-way valve (104); the accumulator (103) is used for storing refrigerant.
3. A multifunctional combined type air-conditioning heat pump system for refrigeration and heating as recited in claim 1, characterized in that the three-way valve (104) is a three-way proportional regulating valve for regulating the refrigerant flow of the first branch and the second branch.
4. A multifunctional combined air-conditioning heat pump system for refrigeration and heating according to any one of claims 1 to 3, characterized in that the first evaporator (202) is a finned tube, plate, sleeve or shell-and-tube heat exchanger.
5. A multifunctional combined air-conditioning heat pump system for refrigeration and heating according to any one of claims 1 to 3, characterized in that the second evaporator (302) is a finned tube, plate, sleeve or shell-and-tube heat exchanger.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513795A (en) * | 2019-08-06 | 2019-11-29 | 广东申菱环境系统股份有限公司 | A kind of refrigerating and heat-supplying multifunctional composite air conditioner heat pump system and working method |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513795A (en) * | 2019-08-06 | 2019-11-29 | 广东申菱环境系统股份有限公司 | A kind of refrigerating and heat-supplying multifunctional composite air conditioner heat pump system and working method |
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