Fuel gas air source heat pump with heat recovery structure

Abstract

The invention discloses a fuel gas air source heat pump with a heat recovery structure, and relates to the field of fuel gas air source heat pumps, the fuel gas air source heat pump comprises a pump main body, the side surface of the pump main body is connected with an air inlet, the top of the pump main body is connected with a heat dissipation port, the bottom of a connecting pipe is fixedly provided with a connecting block, and the bottom of the connecting block is connected with a collecting box. The upper surface of the collecting box and the bottom of the connecting block are each provided with three second through grooves in a penetrating mode, and the second through grooves and the first through grooves can be combined together. According to the fuel gas air source heat pump with the heat recovery structure, when hot air discharged by the heat pump is conveyed into the drying chamber, different materials on the roller and the placement frame can be dried, heat of the heat pump is recovered, impurities of the hot air can be filtered through a filter plate, the material drying quality can be improved, and the heat recovery efficiency is improved. And finally, heat emitted by the connecting pipe is absorbed through the communicating pipe, water in the water tank can be heated, and the other function of heat recovery of the heat pump is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of gas-air source heat pumps, and in particular to a gas-air source heat pump with a heat recovery structure. Background Art

[0002] The gas-to-air heat pump is a heat pump system that combines gas and air sources. It mainly uses the heat in the air as the heat source and improves the efficiency and performance of the system through gas-assisted heating. It can provide efficient, economical and environmentally friendly heating. It is widely used in cold areas. The working principle of the heat pump is to transfer the heat of the outdoor air from the low-temperature environment to the indoor environment to meet the heating needs. When the air heat is insufficient, it will be heated by gas assistance to ensure the stability of the indoor temperature.

[0003] At present, there are still some shortcomings in gas-fired air source heat pumps. For example, air source heat pumps do not utilize the heat generated, resulting in heat energy being wasted: In order to solve the problem of low heat utilization of air energy heat pumps, a Chinese patent of prior art document 1 (publication number: CN218600006U) discloses an air source heat pump refrigeration waste heat recovery structure. The air source heat pump refrigeration waste heat recovery structure, thanks to the setting of the waste heat recovery component on one side of the air source heat pump unit, absorbs the heat in the hot air through a plurality of heat-absorbing copper plates, and transfers it to the water in the heat-absorbing copper plates, thereby heating the water flowing through the copper pipe, so as to complete the preheating of the water body before it enters the water tank, thereby reducing the time and energy consumption of secondary heating of the water body, effectively utilizing heat energy, avoiding waste, and having strong practicality; The Chinese patent of the prior art document 2 (publication number: CN216204321U) discloses an air energy heat pump waste heat recovery device, which can heat up the outdoor air to a certain extent through the recovery and utilization device, thereby improving the working efficiency of the air energy heat pump when the temperature is low, and the heat provided comes from the heat pipe end, thereby realizing the full recovery and utilization of the waste heat, so that the heating capacity of the heat pump unit is improved. In addition, the heat conduction structure can better heat up the air, and the air heating speed is fast; In addition, the Chinese patent of prior art document three (publication number: CN216769851U) discloses an air source heat pump heat recovery system, which adds a first circulation insulation pipe, a first pipe adapter, a spiral heat conduction pipe, a second pipe adapter, a second circulation insulation pipe, a protective grille, a protective filter and an exhaust device, so that the relatively low cold air entering the evaporator from the left end of the exhaust shell can be preheated, so that the evaporator can be heated quickly, thereby improving the efficiency of the air source heat pump body when in use, and the first stainless steel annular sheet, telescopic spring, metal column, lifting ring and second stainless steel annular sheet are arranged to facilitate the disassembly of the protective grille, and thus facilitate the cleaning of impurities filtered out from the surface of the protective filter inside the exhaust shell.

[0004] However, the gas air source heat pumps currently in use still have certain shortcomings. In the above-mentioned document 1, the hot air generated by the heat pump is used to heat water to recover heat energy. The functionality is relatively simple and cannot meet the needs of use in different situations. In addition, the hot air discharged by the heat pump may contain impurities. After long-term use, the impurities cover the surface of the pipe and affect the heat recovery effect of the device. This impact will become greater and greater over time, so it is necessary to improve the existing structure. Summary of the invention

[0005] The purpose of the present invention is to provide a gas-to-air source heat pump with a heat recovery structure to solve the problems raised in the above background technology that the heat pump is not convenient to recover the heat emitted by the gas-to-air source heat pump; during drying, the discharged gas contains a lot of impurities, which will pollute the dried objects; and the function of heat recovery is relatively single and difficult to adapt to different needs.

[0006] To achieve the above object, the present invention provides the following technical solution: a gas-fired air-source heat pump with a heat recovery structure, comprising a pump body, a side of the pump body being connected to an air inlet, and a top of the pump body being connected to a heat dissipation port: The top of the heat dissipation port is connected to a connecting pipe, the end of the connecting pipe away from the heat dissipation port is connected to three shunt pipes, the shunt pipes are connected through the inside of the drying chamber, an exhaust fan is installed inside the drying chamber, the drying chamber is arranged on the side of the pump body, a PLC controller is installed outside the drying chamber, and a recovery mechanism for recovering heat from the heat pump is arranged inside the drying chamber; Three groups of filter plates are installed inside the connecting pipe, and the filtering accuracy of each filter plate is different. A filtering mechanism for filtering air is arranged inside the connecting pipe; A water tank is arranged on the side of the pump body close to the drying chamber, and a heat absorbing mechanism for improving the diversity of heat recovery of the heat pump is arranged on the surface of the water tank.

[0007] Furthermore, the recovery mechanism includes a first motor, which is installed on the side of the drying chamber near the heat dissipation port, and a drum is fixed to the output end of the first motor. The drum is rotatably connected inside the drying chamber, and a placement rack is installed inside the drying chamber, and the placement rack is located between the drum and the diversion pipe.

[0008] Furthermore, the filtering mechanism comprises a first through groove, which is opened through the bottom of the connecting pipe, and there are three first through grooves, and the first through grooves are located on the side of the filter plate.

[0009] Furthermore, a connecting block is fixed at the bottom of the connecting pipe, a collecting box is connected to the bottom of the connecting block, three second through grooves are penetrated through the upper surface of the collecting box and the bottom of the connecting block, and the second through grooves can be combined with the first through grooves.

[0010] Furthermore, a closing plate is connected to the end of the collection box close to the pump body, and sliding grooves are symmetrically provided on the upper surface of the collection box. A sliding block slides through the inside of the sliding groove, and the sliding block is fixed at the bottom of the connecting block, and four sliding blocks are provided.

[0011] Furthermore, the end of the connecting block close to the closing plate is rotatably connected to a rotating block, and two groups of rotating blocks are symmetrically connected with respect to the connecting block, and a friction plate is connected between the rotating block and the connecting block.

[0012] Furthermore, a first bevel gear rod is rotatably connected to the inside of the filter plate, three groups of cleaning brush plates are fixed to the surface of the first bevel gear rod, each cleaning brush plate is respectively fitted and connected to different sides of the filter plate, and the end of the first bevel gear rod away from the rotating block is meshed and connected to the second bevel gear rod.

[0013] Furthermore, the second bevel gear rod penetrates and rotates inside the connecting block, the end of the connecting block away from the first bevel gear rod is connected to the output end of the second motor, and the second motor is installed on the side of the connecting block.

[0014] Furthermore, the heat absorption mechanism includes a water pump, which is installed on the upper surface of the water tank. The water suction end of the water pump is connected to the end of the water outlet pipe of the water tank. A connecting pipe is installed at the water outlet end of the water pump, and the connecting pipe is fittedly connected to the upper surface of the connecting pipe near the filter plate.

[0015] Furthermore, the end of the connecting pipe away from the water pump is connected to the water inlet of the water tank, and the water inlet is located at the lower side of the water tank, and the water pump, the connecting pipe and the water tank form a through connection.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The gas-fired air source heat pump with heat recovery structure can dry different materials on the drum and the rack when the hot air discharged by the heat pump is transported to the inside of the drying chamber, realizing the heat recovery of the heat pump. Secondly, the impurities in the hot air can be filtered through the filter plate, which can improve the quality of material drying. Finally, the heat emitted by the connecting pipe is absorbed through the connecting pipe, and the water inside the water tank can be heated, realizing another function of heat recovery of the heat pump and improving the heat recovery effect. 2. A diverter pipe is provided, through which the hot gas discharged from the connecting pipe can be dispersed, so that the heat dissipation is uniform, which can improve the drying effect of the drying chamber on the material; 3. It is equipped with a drum and a rack, through which different drying objects can be dried, which can improve the flexibility of drying. One drying room can have multiple uses, which can reduce the purchase cost; 4. A filter plate is provided, through which the heat discharged by the heat pump can be filtered. There are three filter plates, and each filter plate has a different filtering accuracy, which can greatly improve the quality of exhaust air, prevent pollutant discharge, and improve the effect of material drying; 5. A connecting pipe is provided, which can absorb the heat emitted by the connecting pipe, thereby heating the cold water inside the water tank, which can realize another function of heat recovery of the heat pump and improve the adaptability of the heat pump; 6. A rotating block is provided, and the position of the collection box can be limited by the rotating block, so that the collection box will not slide out of the bottom of the connecting block due to the vibration of the gas air source heat pump during use, thereby improving the effect of hot air impurity cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall front-view stereoscopic structure of the present invention; Figure 2 This is a schematic diagram of the overall split three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of the cross-sectional three-dimensional structure of the drying chamber of the present invention; Figure 4 This is a schematic diagram of the cross-sectional three-dimensional structure of the connecting pipe of the present invention; Figure 5 This is a schematic diagram of the split three-dimensional structure of the connection block of the present invention; Figure 6 This is a schematic diagram of the split three-dimensional structure of the filter plate of the present invention; Figure 7 It is a schematic diagram of an enlarged three-dimensional structure of the second bevel gear rod of the present invention; Figure 8 It is a schematic diagram of the enlarged three-dimensional structure of the water tank of the present invention; Fig. 9 It is a schematic diagram of the enlarged three-dimensional structure of the connecting pipe of the present invention.

[0018] In the figure: 1. pump body; 2. air inlet; 3. heat dissipation port; 301. connecting pipe; 302. drying chamber; 303. PLC controller; 304. shunt pipe; 305. first motor; 306. drum; 307. placement rack; 308. filter plate; 309. first through groove; 310. connecting block; 311. collecting box; 312. second through groove; 313. closing plate; 314. sliding groove; 315. sliding block; 316. rotating block; 317. first bevel gear rod; 318. cleaning brush plate; 319. second bevel gear rod; 320. second motor; 321. water tank; 322. water pump; 323. connecting pipe. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Embodiment 1: Figure 1-Figure 3 The technical solution shown in the figure, the present invention provides the following technical solution: In order to solve the problem that the heat pump is inconvenient to recover the heat emitted by the gas air source heat pump, which wastes power consumption and increases costs, a recovery mechanism is disclosed: The pump body 1 includes a pump body 1, an air inlet 2 is connected to the side of the pump body 1, a heat dissipation port 3 is connected to the top of the pump body 1, a connecting pipe 301 is connected to the top of the heat dissipation port 3, and the end of the connecting pipe 301 away from the heat dissipation port 3 is connected to three shunt pipes 304, the shunt pipe 304 is connected through the inside of the drying chamber 302, an exhaust fan is installed inside the drying chamber 302, the drying chamber 302 is arranged on the side of the pump body 1, a PLC controller 303 is installed outside the drying chamber 302, a recovery mechanism for heat recovery of the heat pump is arranged inside the drying chamber 302, three groups of filter plates 308 are installed inside the connecting pipe 301, and each filter plate 3 08 has a different filtering accuracy. A filtering mechanism for filtering air is arranged inside the connecting pipe 301. A water tank 321 is arranged on the side of the pump body 1 close to the drying chamber 302. A heat absorbing mechanism for improving the diversity of heat recovery of the heat pump is arranged on the surface of the water tank 321. The recovery mechanism includes a first motor 305. The first motor 305 is installed on the side of the drying chamber 302 close to the heat dissipation port 3. A drum 306 is fixed to the output end of the first motor 305. The drum 306 is rotatably connected to the inside of the drying chamber 302. A placement rack 307 is installed inside the drying chamber 302. The placement rack 307 is located between the drum 306 and the shunt pipe 304. When in use, the gas-to-air heat pump absorbs external heat through the air inlet 2, and then transmits it to the room through its own heating system, thereby increasing the indoor temperature. When the outdoor temperature is insufficient, the indoor temperature cannot be maintained and the temperature is lowered. At this time, the gas heating method can be used to heat the hot air flowing into the room, thereby ensuring the stability of the indoor temperature. When the gas-to-air heat pump is running in summer, the heating system can be reversed to cool the room. When the room is cooled, heat will be discharged from the outside, and the heat generated by the gas-to-air heat pump will be discharged from the heat dissipation port 3. In order to utilize the discharged heat, the gas-to-air heat pump can open the door of the drying chamber 302, place the materials to be dried on the upper surface of the placement rack 307, or place the cloth to be dried inside the drum 306, and then close the door of the drying chamber 302. When the hot air is discharged, it can be transported through the connecting pipe 301. The hot air is transported through the connecting pipe 301 When it reaches the inside of the diversion pipe 304, it can be diverted into three air flows, and the three air flows can be discharged inside the drying chamber 302. The discharged hot air can heat the internal space of the drying chamber 302. During the heating process, the heat can be transferred to the material or cloth. The heat can promote the evaporation of water to achieve rapid drying. During the drying process of the cloth inside the drum 306, the operation program can be set by the PLC controller 303 to start the first motor 305. When the first motor 305 is started, the output end can drive the drum 306 to rotate. When the drum 306 rotates, the cloth inside can be tumbled. After tumbling, the effect of heat drying can be improved. The moisture generated during the drying process can be discharged by the exhaust fan equipped in the drying chamber 302 itself. After the moisture is discharged, no water droplets or water mist will be formed and attached to the surface of the dry material. In this way, the heat recovery of the heat pump is achieved, the utilization rate of the heat pump energy is improved, and the use cost is reduced.

[0021] Embodiment 2: Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The technical solution shown in the figure, the present invention provides the following technical solution: In order to solve the problem that the air source heat pump emits a lot of gas impurities during drying, which will pollute the dried objects, a filtering mechanism is disclosed on the basis of the first embodiment: The filtering mechanism includes a first through groove 309, which is opened through the bottom of the connecting pipe 301, and there are three first through grooves 309, and the first through grooves 309 are located on the side of the filter plate 308, a connecting block 310 is fixed at the bottom of the connecting pipe 301, and a collecting box 311 is connected to the bottom of the connecting block 310, and three second through grooves 312 are opened through the upper surface of the collecting box 311 and the bottom of the connecting block 310, and the second through grooves 312 and the first through grooves 309 can be combined together, and a closing plate 313 is connected to the end of the collecting box 311 close to the pump body 1, and sliding grooves 314 are symmetrically opened on the upper surface of the collecting box 311, and a sliding block 315 slides through the inside of the sliding groove 314, and the sliding block 315 is fixed to the bottom of the connecting block 310, and the sliding block 31 There are four of them, the end of the connecting block 310 close to the closing plate 313 is rotatably connected with a rotating block 316, two groups of rotating blocks 316 are symmetrically connected with the connecting block 310, a friction plate is connected between the rotating block 316 and the connecting block 310, a first bevel gear rod 317 is rotatably connected to the inside of the filter plate 308, three groups of cleaning brush plates 318 are fixed on the surface of the first bevel gear rod 317, each cleaning brush plate 318 is respectively fitted and connected to different sides of the filter plate 308, the end of the first bevel gear rod 317 away from the rotating block 316 is meshed and connected with the second bevel gear rod 319, the second bevel gear rod 319 is rotatably connected to the inside of the connecting block 310, the end of the connecting block 310 away from the first bevel gear rod 317 is connected to the output end of the second motor 320, and the second motor 320 is installed on the side of the connecting block 310; During the drying process, the hot air discharged by the heat pump can circulate inside the connecting pipe 301. When the hot air circulates, impurities in the gas can be filtered by the three filter plates 308 inside the connecting pipe 301. After the gas is filtered, the hot air can be prevented from polluting the dried object, thereby improving the quality of drying. During a long drying process, particulate impurities will accumulate on the side of the filter plate 308, which can easily cause the connecting pipe 301 to be blocked, affecting the hot air circulation and the drying effect. The second motor 320 can be started regularly through the program of the PLC controller 303. When the second motor 320 is started, the output end can carry The second bevel gear rod 319 is driven to rotate, and when the second bevel gear rod 319 rotates, it can drive the first bevel gear rod 317 to mesh and rotate. When the first bevel gear rod 317 meshes and rotates, it can rotate through the filter plate 308. When the first bevel gear rod 317 rotates, it can drive the surface cleaning brush plate 318 to rotate. When the cleaning brush plate 318 rotates, it can scrape and clean the sides of the three filter plates 308. The impurities cleaned from the filter plate 308 can fall into the collection box 311 through the first through groove 309 and the second through groove 312 for collection. The impurities are collected by the collection box 311. After that, due to the characteristics of its own structure, impurities will not re-enter the connecting pipe 301 due to the flow of wind to affect ventilation, thereby ensuring the effect of gas circulation and the effect of hot air filtering. When the impurities in the collecting box 311 are collected for a certain period of time, the rotating block 316 is rotated. When the rotating block 316 rotates, the friction plate can be squeezed. When the friction plate is squeezed, it can be deformed. After the friction plate is deformed, the rotating block 316 can be rotated through the connecting block 310. When the rotating block 316 rotates out of the end of the collecting box 311, it pushes the collecting box 311 outward. When the collecting box 311 is pushed The sliding groove 314 can be driven to move, and when the sliding groove 314 moves, it can slide through the sliding block 315. When the sliding groove 314 slides out of the side of the sliding block 315, the collecting box 311 can be separated from the connecting block 310. At this time, the collecting box 311 is taken to the side of the trash can and the closing plate 313 is opened. After the closing plate 313 is opened, the collected impurities inside the collecting box 311 can be poured out. The operation is simple and quick, and the collecting box 311 can be quickly cleaned, thereby improving the efficiency of daily maintenance of the gas-to-air source heat pump and the effect of the gas-to-air source heat pump on the treatment of hot air impurities.

[0022] Embodiment 3: Figure 1 , Figure 2 , Figure 8 and Fig. 9 The technical solution shown in the figure, the present invention provides the following technical solution: In order to solve the problem that the air source heat pump has a relatively single function when recovering heat energy and is difficult to adapt to different needs, on the basis of the first embodiment, a heat absorption mechanism is disclosed: The heat absorption mechanism includes a water pump 322, which is installed on the upper surface of the water tank 321. The water suction end of the water pump 322 is connected to the end of the water outlet pipe of the water tank 321. A connecting pipe 323 is installed at the water outlet of the water pump 322. The connecting pipe 323 is closely connected to the upper surface of the connecting pipe 301 close to the filter plate 308. The end of the connecting pipe 323 away from the water pump 322 is connected to the water inlet of the water tank 321, and the water inlet is located at the lower side of the water tank 321. The water pump 322, the connecting pipe 323 and the water tank 321 are connected through, and the heat discharged by the heat pump When the hot air circulates inside the connecting pipe 301, the material of the connecting pipe 301 absorbs heat and transfers it to the outside. The heat of the connecting pipe 301 can be transferred to the surface of the connecting pipe 323 attached to the surface, and part of the connecting pipe 323 begins to absorb heat and heat up. At this time, the water pump 322 is started by the program set by the PLC controller 303. When the water pump 322 is started, the drying chamber 302 cannot be effectively dried, so it cannot be used at the same time as the recycling mechanism. When the water pump 322 is started, the centrifugal force generated inside can be transmitted through its own water suction end and the water outlet pipe of the water tank 321. The cold water in the water tank 321 is extracted, and the cold water is pumped into the water pump 322 and then transported to the connecting pipe 323. When the cold water is transported to the position where the connecting pipe 323 is heated, it can absorb the heat of the connecting pipe 323. After the heat is absorbed, the connecting pipe 323 will begin to cool down, and the temperature of the flowing cold water will rise. The water with the increased temperature can be transported back to the water tank 321 through the other end of the connecting pipe 323 and the water inlet of the water tank 321, thereby realizing the circulation of the water in the water tank 321. The position is close to the bottom of the water tank 321 and away from the water outlet position of the water tank 321. Therefore, during the process of the heated water heating the cold water inside the water tank 321, the heated water will not recirculate quickly and can be fully mixed inside the water tank 321. After a long period of circulation, the cold water inside the water tank 321 will gradually heat up, thereby realizing the heating of water by the heat pump. The heated water can be used for washing cars, washing clothes, taking baths, etc., without the need to pass other equipment (such as gas, water heaters, etc.) to heat the water separately, thereby reducing the cost of use and improving the effect of heat pump capacity recovery.

[0023] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A gas-to-air heat pump with a heat recovery structure, comprising a pump body (1), a side of the pump body (1) being connected to an air inlet (2), and a top of the pump body (1) being connected to a heat dissipation port (3), characterized in that: The top of the heat dissipation port (3) is connected to a connecting pipe (301), the end of the connecting pipe (301) away from the heat dissipation port (3) is connected to three shunt pipes (304), the shunt pipes (304) penetrate and are connected to the inside of the drying chamber (302), an exhaust fan is installed inside the drying chamber (302), the drying chamber (302) is arranged on the side of the pump body (1), a PLC controller (303) is installed outside the drying chamber (302), and a recovery mechanism for recovering heat from the heat pump is arranged inside the drying chamber (302); Three groups of filter plates (308) are installed inside the connecting pipe (301), and each filter plate (308) has a different filtering accuracy. A filtering mechanism for filtering wind is provided inside the connecting pipe (301); A water tank (321) is arranged on the side of the pump body (1) close to the drying chamber (302), and a heat absorption mechanism for improving the diversity of heat recovery of the heat pump is arranged on the surface of the water tank (321).

2. A gas-to-air source heat pump with a heat recovery structure according to claim 1, characterized in that: The recycling mechanism comprises a first motor (305), the first motor (305) being installed on a side of the drying chamber (302) close to the heat dissipation port (3), a roller (306) being fixed to an output end of the first motor (305), the roller (306) being rotatably connected inside the drying chamber (302), a placement rack (307) being installed inside the drying chamber (302), the placement rack (307) being located between the roller (306) and the diversion pipe (304).

3. A gas-to-air source heat pump with a heat recovery structure according to claim 1, characterized in that: The filtering mechanism comprises a first through groove (309), the first through groove (309) being opened through the bottom of the connecting pipe (301), three first through grooves (309) being opened, and the first through grooves (309) being located on the side of the filtering plate (308).

4. The gas-fired air source heat pump with a heat recovery structure according to claim 1, characterized in that: A connecting block (310) is fixed at the bottom of the connecting tube (301), and a collecting box (311) is connected to the bottom of the connecting block (310). Three second through grooves (312) are provided through the upper surface of the collecting box (311) and the bottom of the connecting block (310), and the second through grooves (312) and the first through grooves (309) can be combined together.

5. A gas-to-air source heat pump with a heat recovery structure according to claim 4, characterized in that: The end of the collection box (311) close to the pump body (1) is connected to a closing plate (313); the upper surface of the collection box (311) is symmetrically provided with sliding grooves (314); a sliding block (315) slides through the inside of the sliding groove (314); the sliding block (315) is fixed to the bottom of the connection block (310), and four sliding blocks (315) are provided.

6. A gas-fired air source heat pump with a heat recovery structure according to claim 5, characterized in that: The end of the connecting block (310) close to the closing plate (313) is rotatably connected to a rotating block (316), two groups of rotating blocks (316) are symmetrically connected to the connecting block (310), and a friction plate is connected between the rotating block (316) and the connecting block (310).

7. A gas-fired air source heat pump with a heat recovery structure according to claim 6, characterized in that: A first bevel gear rod (317) is rotatably connected to the inside of the filter plate (308); three groups of cleaning brush plates (318) are fixed to the surface of the first bevel gear rod (317); each cleaning brush plate (318) is respectively fitted and connected to a different side of the filter plate (308); and the end of the first bevel gear rod (317) away from the rotating block (316) is meshingly connected to a second bevel gear rod (319).

8. The gas-fired air source heat pump with a heat recovery structure according to claim 7, characterized in that: The second bevel gear rod (319) penetrates and rotates inside the connection block (310); the end of the connection block (310) away from the first bevel gear rod (317) is connected to the output end of the second motor (320); and the second motor (320) is mounted on a side of the connection block (310).

9. The gas-fired air source heat pump with a heat recovery structure according to claim 1, characterized in that: The heat absorption mechanism comprises a water pump (322), the water pump (322) being mounted on the upper surface of the water tank (321), the water suction end of the water pump (322) being connected to the end of a water outlet pipe of the water tank (321), the water outlet end of the water pump (322) being mounted with a connecting pipe (323), the connecting pipe (323) being closely connected to the upper surface of the connecting pipe (301) close to the filter plate (308).

10. A gas-fired air source heat pump with a heat recovery structure according to claim 9, characterized in that: The end of the connecting pipe (323) away from the water pump (322) is connected to the water inlet of the water tank (321), and the water inlet is located at a lower position on the side of the water tank (321). The water pump (322), the connecting pipe (323) and the water tank (321) form a through connection.

Images