Cooling and heating combined supply station building heat recovery device of heat pump unit

Abstract

The utility model discloses a cold and heat combined supply station house heat recovery device of a heat pump unit, which comprises a combined supply station house body, a gas generator is fixedly arranged on one side in the combined supply station house body, a water source heat pump machine is fixedly arranged on one side of the gas generator, and an air source heat pump machine is fixedly arranged on one side of the water source heat pump machine. A cooling groove is formed in the surface of one side of the gas generator, a first heat supply port is fixedly installed above the recovery port, an air inlet pipe is fixedly installed on the surface of one side of the air source heat pump machine, a smoke exhaust pipe is fixedly installed on one side of the side surface of the gas generator, and a second heat supply port is installed on one side of the air source heat pump machine. The room heat recovery system has the advantages that heat of waste gas discharged during power generation of the gas generator is recovered through the air source heat pump, heat of waste water in the water cooling pipe during power generation of the gas generator is recovered through the water source heat pump, and therefore efficient room heat recovery is achieved; and the energy utilization rate during power generation in the combined supply station building body is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of combined cooling and heating stations, and in particular to a heat recovery device for a combined cooling and heating station of a heat pump unit. Background Art

[0002] The combined cooling and heating station, also known as the combined cooling, heating and power system, is a highly integrated and efficient energy supply solution. It combines power generation, cooling and heating functions organically through integrated design and management technology, achieving efficient output of multiple energy forms under primary energy input. In this system, gas internal combustion engines, micro gas turbines or fuel cells are usually used as power sources to burn natural gas or other combustible gases to generate electricity.

[0003] The existing waste heat recovery of combined heat and cold plants is to provide heating and cooling to users through waste heat recovery and utilization equipment (waste heat boiler or waste heat direct-fired machine, etc.) that uses the waste heat discharged after power generation. Waste heat boilers recover waste heat by burning fuels (such as natural gas, coal, etc.) to generate high-temperature flue gas. The high-temperature flue gas flows inside the boiler, transferring heat to the water or steam in the boiler, heating it into high-temperature water or steam. At the outlet of the boiler, the temperature of the high-temperature flue gas gradually decreases, and the heat is recycled at the same time. The waste heat direct-fired machine is a device that uses industrial waste gas or waste liquid to directly burn to generate heat energy. Both of these devices recover waste heat through the waste gas generated by the gas generator. Since the combined heat and cold plant discharges waste heat in various ways after power generation, such as air cooling or water cooling, and only relies on flue gas for heat recovery, the energy utilization rate of the combined heat and cold plant is low, and waste heat cannot be recovered efficiently. Therefore, it is necessary to propose a heat recovery device for the combined heat and cold plant of a heat pump unit to solve the above problems. Utility Model Content

[0004] In view of the problems in the related technology, the utility model proposes a heat recovery device for a combined cooling and heating station of a heat pump unit to overcome the above technical problems existing in the existing related technology.

[0005] To this end, the specific technical solutions adopted by the utility model are as follows:

[0006] A heat recovery device for a combined heat and cold supply station of a heat pump unit comprises a combined heat supply station body, a gas generator is fixedly installed on one side of the combined heat supply station body, a gas pipe is installed on one side surface of the gas generator, a water source heat pump is fixedly installed on one side of the gas generator, an air source heat pump is fixedly installed on one side of the water source heat pump, a cooling groove is opened on one side surface of the gas generator, a water cooling pipe is fixedly installed in the cooling groove, a water injection port is opened on one side of the cooling groove, a drainage port is opened on one side surface of the gas generator, a recovery port is fixedly installed on one end of the water source heat pump, a heating port 1 is fixedly installed above the recovery port, the recovery port and the drainage port are connected to each other, a water injection tank is fixedly installed on one side of the air source heat pump, an air intake pipe is fixedly installed on one side surface of the air source heat pump, a smoke exhaust pipe is fixedly installed on one side of the side surface of the gas generator, the air intake pipe is sealed and connected to the smoke exhaust pipe, and a heating port 2 is installed on one side of the air source heat pump.

[0007] Furthermore, in order to filter the flue gas in the flue gas emission pipe, a filter tube is fixedly installed between the air intake pipe and the flue gas emission pipe, a filter plate is fixedly installed inside the filter tube, a collection groove is slidably installed inside the filter plate, and a cleaning port is opened on one side of the filter tube. When the flue gas in the flue gas emission pipe passes through the filter tube, the filter plate in the filter tube filters the particulate matter or impurities in the flue gas, and the filtered gas enters the air intake pipe for heat recovery.

[0008] Furthermore, in order to clean the particulate matter and impurities filtered on the filter plate, a support shaft is fixedly installed in the filter tube, a rotating bearing is fixedly installed on the support shaft, a transmission shaft is rotatably installed in the rotating bearing, a rotating fan is fixedly installed on one end of the transmission shaft, and a cleaning scraper is fixedly connected to the other end. A closing plate is slidably installed above the collecting tank, and the rotating fan is driven to rotate by the smoke entering the filter tube, and the rotating fan drives the cleaning scraper at the other end of the transmission rod to rotate, pushing impurities on the surface of the filter plate into the collecting tank, and cleaning the particulate matter by sliding and pulling the collecting tank out.

[0009] Furthermore, in order to realize the switch control of each device in the combined power supply station body, a multi-control switch is installed on one side of the inner wall of the combined power supply station body.

[0010] Furthermore, in order to realize lighting inside the joint control station house, a maintenance lighting lamp is fixedly installed on the top of the inner wall of the joint supply station house. When the lighting inside the joint supply station house is insufficient and maintenance is required, the interior is illuminated and maintained by the maintenance lighting lamp.

[0011] Furthermore, in order to realize the cold water supply to the joint control station house, a water supply pipe is fixedly installed inside the joint supply station house, the water supply pipe is fixedly connected to one side of the water injection tank, one end of the water injection port is fixedly installed on the water supply pipe, and the water required for heat recovery is injected into the water injection tank through the water supply pipe, and the cooling water for the gas generator during power generation is injected into the water injection port.

[0012] Furthermore, in order to recycle the wastewater discharged by the water source heat pump, a wastewater recovery pipe is fixedly installed on one side of the water source heat pump. Some water with heat enters the water source heat pump, absorbs heat, and the heat disappears, and is discharged outside the water source heat pump through the wastewater recovery tank.

[0013] The beneficial effects of the utility model are:

[0014] 1. The air source heat pump is used to recover the heat from the flue gas with heat discharged during the gas generator's power generation, and then the water source heat pump is used to recover the heat from the cooling water with heat in the water cooling pipe of the gas generator, so as to achieve efficient room heat recovery in the combined heat supply station, greatly improving the energy utilization rate of the combined heat and cold supply station.

[0015] 2. Filter the flue gas discharged from the flue gas discharge pipe through the filter tube to prevent the particles and impurities in the flue gas from entering the air source heat pump during heat recovery and causing damage to it; then the exhaust flue gas blows the rotary fan to rotate, and the rotary fan drives the cleaning scraper to push the particles and impurities on the filter plate into the collection tank for cleaning, to prevent the filter plate from being blocked after filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, purposes and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0017] Figure 1 It is a schematic diagram of the surface structure of a heat recovery device of a combined cooling and heating station of a heat pump unit according to an embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of the internal structure of a combined heat supply station in a heat recovery device of a combined heat supply station of a heat pump unit according to an embodiment of the utility model;

[0019] Figure 3 It is an internal side view of a combined heat supply station body in a heat recovery device of a combined heat supply station of a heat pump unit according to an embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the surface structure of a filter tube of a heat recovery device of a combined heat and cold supply station according to an embodiment of the utility model;

[0021] Figure 5 The utility model is a schematic diagram of the internal cross-section of a filter tube in a heat recovery device of a combined cooling and heating station of a heat pump unit according to an embodiment of the utility model.

[0022] In the figure:

[0023] 1. Combined heat supply station building; 2. Gas generator; 3. Gas pipe; 4. Water source heat pump; 5. Air source heat pump; 6. Cooling tank; 7. Water cooling pipe; 8. Water filling port; 9. Drainage port; 10. Recovery port; 11. Heating port 1; 12. Water filling tank; 13. Air intake pipe; 14. Flue gas exhaust pipe; 15. Heating port 2; 16. Filter pipe; 17. Filter plate; 18. Collecting tank; 19. Cleaning port; 20. Support shaft; 21. Rotating bearing; 22. Drive shaft; 23. Rotating fan; 24. Cleaning scraper; 25. Closing plate; 26. Multi-control switch; 27. Lighting lamp; 28. Water supply pipe; 29. ​​Wastewater recovery pipe. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] See also Figure 1-Figure 5 The utility model provides a technical solution: a heat recovery device for a combined heat and cold supply station of a heat pump unit, comprising a combined heat supply station body 1, a gas generator 2 is fixedly installed on one side of the combined heat supply station body 1, and a gas pipe 3 is installed on one side surface of the gas generator 2 for generating electricity by burning natural gas; a water source heat pump 4 is fixedly installed on one side of the gas generator 2 for absorbing the heat of cooling water in the gas generator 2; an air source heat pump 5 is fixedly installed on one side of the water source heat pump 4 for absorbing the heat of flue gas discharged after the gas generator 2 generates electricity; a cooling groove 6 is opened on one side surface of the gas generator 2, a water cooling pipe 7 is fixedly installed in the cooling groove 6, a water injection port 8 is opened on one side of the cooling groove 6, and a drain port 9 is opened on one side surface of the gas generator 2, water is injected into the water cooling pipe 7 through the water injection port 8, and the inside of the gas generator 2 is water-cooled when it is working. The cooled water is discharged through the drain port 9; a recovery port 10 is fixedly installed at one end of the water source heat pump 4, and a heat supply port 11 is fixedly installed above the recovery port 10. The recovery port 10 and the drain port 9 are connected to each other, and are used to recover the heat of the water discharged from the drain port 9 through the water source heat pump 4; a water injection tank 12 is fixedly installed on one side of the air source heat pump 5, which is used to inject heating water into the air source heat pump 5; an air intake pipe 13 is fixedly installed on the surface of one side of the air source heat pump 5, and a flue gas exhaust pipe 14 is fixedly installed on one side of the side surface of the gas generator 2, which is used to discharge the flue gas generated when the gas generator 2 generates electricity. The air intake pipe 13 is sealed and connected with the flue gas exhaust pipe 14, which is used to send the discharged flue gas into the air source heat pump 5 for heat recovery, and a heat supply port 2 15 is installed on one side of the air source heat pump 5, which is used to discharge the heated water for heating.

[0026] See also Figure 1-Figure 5A filter tube 16 is fixedly installed between the air intake pipe 13 and the smoke exhaust pipe 14, and a filter plate 17 is fixedly installed inside the filter tube 16 for filtering the smoke discharged from the smoke exhaust pipe 14; a collection tank 18 is slidably installed in the filter plate 17 for collecting particulate matter and impurities filtered on the surface of the filter plate 17; a cleaning port 19 is opened on one side of the filter tube 16 for sliding and disassembling the collection tank 18, when the smoke in the smoke exhaust pipe 14 passes through the filter tube 16, the filter plate 17 in the filter tube 16 filters the particulate matter or impurities in the smoke, and the filtered gas enters the air intake pipe 13 for heat recovery; a support shaft 20 is fixedly installed in the filter tube 16, and a rotating bearing 21 is fixedly installed on the support shaft 20, and a transmission bearing 22 is rotatably installed in the rotating bearing 21, and a rotating fan 23 is fixedly installed on one end of the transmission bearing 22, and a cleaning scraper 24 is fixedly connected to the other end, and a closing plate 25 is slidably installed above the collection tank 18 for After the collection tank 18 is slidably disassembled, the filter tube 16 is closed, and the smoke entering the filter tube 16 blows the rotating fan 23 to rotate, and the rotating fan 23 drives the cleaning scraper 24 at the other end of the transmission rod to rotate, pushing the impurities on the surface of the filter plate 17 into the collection tank 18, and the particles are cleaned by sliding the collection tank 18 out; a multi-control switch 26 is installed on one side of the inner wall of the combined power supply station body 1, which is used to control the opening and closing of each device in the combined power supply station body 1; A maintenance lighting lamp 27 is fixedly installed on the top of the inner wall of the station building 1, which is used for lighting during maintenance inside the joint supply station building 1; a water supply pipe 28 is fixedly installed inside the joint supply station building 1, and the water supply pipe 28 is fixedly connected to one side of the water injection tank 12, and one end of the water injection port 8 is fixedly installed on the water supply pipe 28, which is used for supplying water to the water injection tank 12 and the water cooling pipe 7; a wastewater recovery pipe 29 is fixedly installed on one side of the water source heat pump machine 4, which is used for recovering and discharging water after the heat is absorbed by the water source heat pump machine 4.

[0027] Working principle: The gas generator 2 is started through the multi-control switch 26 to burn natural gas to generate electricity, and the air source heat pump 5 and the water source heat pump 4 are started at the same time. When the gas generator 2 generates electricity, the smoke exhaust pipe continuously discharges smoke to the air inlet pipe 13 on one side of the air source heat pump 5. The discharged smoke passes through the filter plate 17 and absorbs the particulate matter and impurities on the surface of the filter plate 17. At the same time, when the smoke is discharged, the rotating fan 23 is blown to rotate, so that the rotating fan 23 drives the transmission bearing 22 and the cleaning scraper 24 to rotate. After the cleaning scraper 24 rotates, the particulate matter and impurities absorbed on the surface of the filter plate 17 are pushed into the collecting tank 18 to prevent the filter plate 17 from being blocked. The filtered smoke enters the gas source heat pump for heat recovery, and the water injected into the water injection tank 12 is heated by the recovered heat and then discharged through the heat supply port 15 to realize the heat recovery and heating of the smoke. When it is necessary to heat the water in the collection tank 18 When the collected particulate matter and impurities are cleaned, the closing plate 25 is slid into the filter tube 16 through the cleaning port 19 to achieve the sealing treatment of the filter plate 17, and then the collection tank 18 is slid outward through the cleaning port 19 to disassemble it and clean it. After cleaning, it is slid and installed into the filter plate 17, and the closing plate 25 is slid out to continue collecting the particulate matter on the filter plate 17; cooling water is injected into the water cooling pipe 7 in the cooling tank 6 through the water supply pipe 28, and the cooling water enters the gas generator 2 and is cooled and discharged from the drain port 9 with the accompanying heat. After being discharged from the drain port 9, it enters the water source heat pump 4 through the recovery port 10 for heat recovery. A small amount of cooling water is heated to a higher temperature after absorbing heat and is discharged from the heat supply port 11 for heating. A large amount of cooling water that has absorbed heat is discharged from the wastewater recovery pipe 29, thereby realizing the room heat recovery in the combined power station building 1.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A heat recovery device for a combined cooling and heating station of a heat pump unit, characterized in that: The invention comprises a combined heat and power station building (1), wherein a gas generator (2) is fixedly installed on one side of the combined heat and power station building (1), a gas pipe (3) is installed on one side of the surface of the gas generator (2), a water source heat pump (4) is fixedly installed on one side of the gas generator (2), an air source heat pump (5) is fixedly installed on one side of the water source heat pump (4), a cooling groove (6) is opened on one side of the surface of the gas generator (2), a water cooling pipe (7) is fixedly installed in the cooling groove (6), a water injection port (8) is opened on one side of the cooling groove (6), a drainage port (9) is opened on one side of the surface of the gas generator (2), and the A recovery port (10) is fixedly installed at one end of the water source heat pump (4), a heat supply port 1 (11) is fixedly installed above the recovery port (10), and the recovery port (10) is sealedly connected to the drain port (9); a water injection tank (12) is fixedly installed at one side of the air source heat pump (5); an air intake pipe (13) is fixedly installed on one side surface of the air source heat pump (5); a flue gas exhaust pipe (14) is fixedly installed on one side surface of the gas generator (2), and the air intake pipe (13) is sealedly connected to the flue gas exhaust pipe (14); and a heat supply port 2 (15) is installed at one side of the air source heat pump (5).

2. The heat recovery device for a combined cooling and heating station of a heat pump unit according to claim 1, characterized in that: A filter tube (16) is fixedly installed between the air intake pipe (13) and the smoke exhaust pipe (14), a filter plate (17) is fixedly installed inside the filter tube (16), a collection tank (18) is slidably installed inside the filter plate (17), and a cleaning port (19) is opened on one side of the filter tube (16).

3. The heat recovery device for a combined cooling and heating station of a heat pump unit according to claim 2, characterized in that: A support shaft (20) is fixedly installed in the filter tube (16), a rotary bearing (21) is fixedly installed on the support shaft (20), a transmission shaft (22) is rotatably installed in the rotary bearing (21), a rotating fan (23) is fixedly installed at one end of the transmission shaft (22), and a cleaning scraper (24) is fixedly connected to the other end, and a closing plate (25) is slidably installed above the collection tank (18).

4. The heat recovery device for a combined cooling and heating station of a heat pump unit according to claim 1, characterized in that: A multi-control switch (26) is fixedly mounted on one side of the inner wall of the combined power supply station building (1).

5. The heat recovery device for a combined cooling and heating station of a heat pump unit according to claim 1, characterized in that: A maintenance lighting lamp (27) is fixedly mounted on the top of the inner wall of the combined power station building (1).

6. The heat recovery device for a combined cooling and heating station of a heat pump unit according to claim 1, characterized in that: A water supply pipe (28) is fixedly installed inside the combined power supply station building (1), the water supply pipe (28) is fixedly connected to one side of the water injection box (12), and one end of the water injection port (8) is fixedly installed on the water supply pipe (28).

7. The heat recovery device for a combined cooling and heating station of a heat pump unit according to claim 1, characterized in that: A wastewater recovery pipe (29) is fixedly mounted on one side of the water source heat pump machine (4).

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