Waste heat recovery device

Abstract

The utility model relates to a waste heat recovery device which comprises a heat preservation positioning assembly, a hot air exhaust pipe, a heat exchange assembly and a filter assembly, wherein the hot air exhaust pipe is limited and fixed on the inner side of the heat preservation positioning assembly; the heat exchange assembly is installed on the outer side of the hot air exhaust pipe; the waste heat recovery device can recover exhaust energy in a heating system, a ventilation system, an air conditioner system and a purification system, the energy utilization efficiency is effectively improved through waste heat recovery, and environmental pollution is reduced.

Description

Technical Field

[0001] The utility model relates to the field of waste heat recovery, and in particular to a waste heat recovery device with high efficiency and carbon reduction applicable to an air-conditioning system. Background Art

[0002] During the operation of the air conditioning system, a large amount of heat is generated, including exhaust heat, condensation heat and compression heat. Traditionally, this heat is discharged to the outside, resulting in energy waste and environmental burden. If the above heat can be recycled and reused, it can effectively improve energy efficiency and reduce environmental pollution. Summary of the invention

[0003] In view of the deficiencies of the prior art, the purpose of the present invention is to provide a waste heat recovery device, which is intended to solve the technical problem that a large amount of heat generated during air-conditioning operation under the prior art is discharged to the outdoors, which is very wasteful.

[0004] To achieve the above purpose, the technical solution of the utility model is:

[0005] A waste heat recovery device includes a heat preservation and positioning component, which is characterized by: it also includes a hot air exhaust duct, a heat exchange component, and a filter component; the hot air exhaust duct is fixed on the inner side of the heat preservation and positioning component; a heat exchange component is installed on the outer side of the hot air exhaust duct to transfer the heat of the hot air exhaust duct to the medium that needs to be heated; a filter component is arranged at the air outlet position of the heat exchange component to block the waste water vapor in the hot air layer by layer.

[0006] Preferably, the hot air exhaust ducts in the heat-insulating positioning assembly are arranged in an "I" shape.

[0007] Preferably, the heat-insulating positioning assembly comprises a first heat-insulating shell, a second heat-insulating shell, and a positioning buckle; the second heat-insulating shell is installed at the rear end of the first heat-insulating shell; the first heat-insulating shell and the second heat-insulating shell are both fixedly connected to the inner sides thereof with positioning buckles of matching positions;

[0008] Preferably, the heat-insulating positioning assembly further includes left-right symmetrical feet fixedly connected to the lower ends of the first heat-insulating shell and the second heat-insulating shell.

[0009] Preferably, the heat exchange component includes a heat-conducting cavity, an air inlet pipe, an air outlet pipe, and a fan; there are three heat-conducting cavities and they are equidistantly distributed vertically; adjacent heat-conducting cavities are fixedly connected by a connecting pipe; an air inlet pipe is provided on the heat-conducting cavity at the bottom; an air outlet pipe is provided on the heat-conducting cavity at the top; and fans are installed on the inner sides of the air inlet pipe and the air outlet pipe.

[0010] Preferably, the filtering component includes a processing box, a sealing cover, limiting sliding grooves, a filter screen group, a moisture-removing plate group, limiting sliding blocks, a scraper and a filter residue collection box; the upper end of the processing box is fitted with a sealing cover; one side of the lower end of the sealing cover is provided with a filter screen group, and the other side is provided with a moisture-removing plate group; both the moisture-removing plate group and the upper end of the filter screen group are fixedly connected with limiting sliding blocks; limiting sliding grooves are formed in the lower end of the sealing cover; the limiting sliding blocks are slidably connected with the limiting sliding grooves; a scraper is arranged in the upper middle part of the processing box; a diversion plate for backward diversion is arranged at the inner bottom end of the processing box; the rear end of the processing box is fixedly connected with a filter residue collection box.

[0011] Preferably, the limiting sliding grooves at the lower end of the sealing cover are equidistantly distributed and the cross-section of the limiting sliding grooves is "T"-shaped, and the cross-section of the limiting sliding blocks is "T"-shaped.

[0012] The beneficial effects of the present utility model:

[0013] Compared with the traditional air conditioner where the heat generated during operation is all discharged outdoors, the present utility model installs a heat exchange component outside the hot air discharge pipe, adding a waste heat recovery technology, which can recover and utilize this heat, improve the energy utilization efficiency, reduce environmental pollution, perform heat exchange on the cold air (hot air) extracted from the room, pre-heat the cold air (or pre-cool the hot air), and then input it into the room, reducing the energy consumption of the air conditioner. The hot air discharge pipe is fixed in a "zigzag" route by the heat preservation positioning component, extending the residence time of the hot air, having a good heat preservation effect and increasing the waste heat recovery efficiency. The air after heat exchange needs to be filtered by the filtering component before being input, removing impurities and water vapor in the air, ensuring the quality of the heat exchange air, and at the same time, the filtering component is very convenient to disassemble and maintain later. Description of the Drawings

[0014] Figure 1 is a three-dimensional structural schematic diagram of the waste heat recovery device of the present utility model;

[0015] Figure 2 is a disassembled three-dimensional structural schematic diagram of the waste heat recovery device of the present utility model;

[0016] Figure 3 is a front structural schematic diagram of the heat exchange component of the waste heat recovery device of the present utility model;

[0017] Figure 4 is a three-dimensional structural schematic diagram of the filtering component of the waste heat recovery device of the present utility model;

[0018] In the figure: 1. Heat preservation and positioning component; 101. First heat preservation housing; 102. Second heat preservation housing; 103. Positioning buckle; 104. Foot pad; 2. Hot air exhaust duct; 3. Heat exchange component; 301. Heat conduction cavity; 302. Air inlet duct; 303. Air outlet duct; 304. Guide fan; 4. Filter component; 401. Processing box; 402. Sealing cover; 403. Limit sliding groove; 404. Filter screen group; 405. Moisture removal plate group; 406. Limit slider; 407. Scraper; 408. Filter collection box. Detailed implementation mode

[0019] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1-Figure 4 For a specific embodiment of the present utility model, please refer to Figure 1 , the present utility model provides an embodiment: a waste heat recovery device, including a heat preservation and positioning component 1, a hot air exhaust duct 2, a heat exchange component 3, and a filter component 4; a "Z"-shaped hot air exhaust duct 2 is limited and fixed inside the heat preservation and positioning component 1; an outer side of the hot air exhaust duct 2 is provided with a heat exchange component 3 for transferring the heat of the hot air exhaust duct 2 to a medium to be heated; at an air outlet position at an upper end of the heat exchange component 3, a filter component 4 is provided for layer-by-layer blocking of waste floc water vapor in the hot air.

[0021] Please refer to Figure 2 , in this embodiment, the heat preservation and positioning component 1 includes a first heat preservation housing 101, a second heat preservation housing 102, a positioning buckle 103, and a foot pad 104; a second heat preservation housing 102 is installed at a rear end of the first heat preservation housing 101; positioning buckles 103 with matching positions are fixedly connected to inner sides of the first heat preservation housing 101 and the second heat preservation housing 102; the hot air exhaust duct 2 is fixed through the positioning buckle 103 of the first heat preservation housing 101, and the second heat preservation housing 102 is fixedly engaged with the positioning buckle 103; left and right symmetric foot pads 104 are fixedly connected to lower ends of the first heat preservation housing 101 and the second heat preservation housing 102; the positioning buckle 103 limits and fixes the hot air exhaust duct 2 into a "Z"-shaped route, extending the residence time of the hot air, and at the same time, the foot pads 104 at the lower end lift the placement positions of the first heat preservation housing 101 and the second heat preservation housing 102, avoiding direct contact with the ground and affecting the heat preservation effect.

[0022] Please refer to Figure 3In this embodiment, the heat exchange component 3 is installed on the outside of the hot air exhaust pipe 2, including a heat conduction cavity 301, an air inlet pipe 302, an air outlet pipe 303, and a fan 304; there are three heat conduction cavities 301 and they are equidistantly distributed vertically; vertically adjacent heat conduction cavities 301 are fixedly connected by connecting pipes; the fan 304 guides the indoor cold air into the air inlet pipe 302 and transports it upward, and the hot air exhaust pipe 2 transfers the heat to the air that needs to be heated after passing through multiple heat conduction cavities 301. The heat conduction cavity 301 at the bottom is provided with an air inlet pipe 302; the heat conduction cavity 301 at the top is provided with an air outlet pipe 303; the fan 304 is installed in the pipe openings of the air inlet pipe 302 and the air outlet pipe 303; the cold air is converted into hot air and then output to the room from the air outlet pipe 303.

[0023] See also Figure 4 In this embodiment, the filter assembly 4 is installed on the air outlet duct of the heat exchange assembly 3, and includes a processing box 401, a sealing cover 402, a limiting slide 403, a filter group 404, a dehumidification plate group 405, a limiting slider 406, a scraper 407 and a filter collection box 408; the upper end of the processing box 401 is embedded with a sealing cover 402; the filter group 404 is installed on the left side of the lower end of the sealing cover 402; the dehumidification plate group 405 is installed on the right side of the lower end of the sealing cover 402; the dehumidification plate group 405 and the upper end of the filter group 404 are fixedly connected with a "T"-shaped limiting slider 406; the lower end of the sealing cover 402 is provided with equidistantly distributed "T"-shaped limiting slides 403; the limiting slide 403 and the limiting slider 406 are slidably connected; after heat exchange The air enters the processing box 401, passes through the filter group 404 and the dehumidification plate group 405, and the waste flocculants and water vapor in the hot air are blocked layer by layer. A scraper 407 is fixedly connected to the inside of the processing box 401; a guide plate for guiding the flow backward is arranged at the bottom of the inside of the processing box 401; a filter collecting box 408 is fixedly connected to the rear end of the processing box 401; in case of blockage, the sealing cover 402 is pulled out from the outside, and when the dehumidification plate group 405 and the filter group 404 pass through the scraper 407, the waste flocculants on the outside of the filter group 404 and the water in the dehumidification plate group 405 are scraped off and squeezed out, and fall into the filter collecting box 408 along the guide direction. When the filter group 404 and the dehumidification plate group 405 need to be replaced, the upper limit slider 406 is pulled out of the lower limit slide groove 403 of the sealing cover 402.

[0024] When the waste heat recovery device of the present utility model is working, the hot air exhaust duct 2 is limited and fixed into a "Z" - shaped route, extending the residence time of the hot air and increasing the waste heat recovery efficiency; a heat exchange component 3 is installed outside the hot air exhaust duct 2. The guide fan 304 of the heat exchange component 3 introduces the indoor cold air into the air inlet pipe 302 and conveys it upward. After passing through multiple heat conduction cavities 301, the hot air exhaust duct 2 transfers heat to the air that needs to be heated, and the cold air becomes hot air. The air after heat exchange is filtered by the filter component 4 before being discharged. The air after heat exchange enters the treatment box 401, passes through the filter mesh group 404 and the moisture - removing plate group 405, and blocks the waste floc water vapor in the hot air layer by layer, removing impurities and water vapor in the air and ensuring the quality of the heat - exchanged air. The filtered air is output to the room from the air outlet pipe 303, reducing the energy consumption of the air conditioner, improving the energy utilization efficiency. The contact area between the heat exchange component 3 and the hot air exhaust duct 2 is large, and the heat exchange efficiency is high. Once a blockage occurs, pull out the sealing cover 402 of the filter component 4 from the outside. The sealing cover 402 pulls out the moisture - removing plate group 405 and the filter mesh group 404. The waste floc on the outside of the filter mesh group 404 is scraped off by the scraper 407, and the moisture in the moisture - removing plate group 405 is squeezed out. The squeezed - out moisture and waste floc fall into the filter collection box 408 along the diversion direction. When the filter mesh group 404 and the moisture - removing plate group 405 need to be replaced, just pull out the upper limit - position slider 406 from the lower limit - position sliding groove 403 of the sealing cover 402.

[0025] The waste heat recovery device of the present utility model is fixed into a "Z" - shaped route by the heat - preservation positioning component 1 through the hot air exhaust duct 2, extending the residence time of the hot air. It has good heat - preservation effect and increases the waste heat recovery efficiency. By installing the heat exchange component 3 outside the hot air exhaust duct 2, the waste heat recovery technology is increased. These heats can be recycled, improving the energy utilization efficiency, reducing environmental pollution, performing heat exchange on the cold air extracted from the room, pre - heating the cold air, and then inputting it into the room, reducing the energy consumption of the air conditioner. Through the filtration of the filter component 4, impurities and water vapor in the air are removed, ensuring the quality of the heat - exchanged air. At the same time, the disassembly and later maintenance of the filter component 4 are very convenient.

[0026] The above - mentioned embodiments of the present utility model have been described in detail with reference to the accompanying drawings. However, the present utility model is not limited to the above - mentioned embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the purpose of the present utility model.

Claims

1. A waste heat recovery device, comprising a heat preservation and positioning component (1); characterized in that: It also includes a hot air exhaust duct (2), a heat exchange component (3), and a filtration component (4); the hot air exhaust duct (2) is limited and fixed inside the heat preservation and positioning component (1); the heat exchange component (3) for transferring the heat of the hot air exhaust duct (2) to the medium to be heated is installed outside the hot air exhaust duct (2); a filtration component (4) for layer-by-layer blocking of waste floc water vapor in the hot air is arranged at the air outlet position of the heat exchange component (3).

2. A waste heat recovery device according to claim 1, characterized in that: The hot air exhaust duct (2) limited and fixed inside the heat preservation and positioning component (1) is in a "yi" shape.

3. A waste heat recovery device according to claim 1, characterized in that: The heat preservation and positioning component (1) includes a first heat preservation housing (101), a second heat preservation housing (102), and positioning buckles (103); the second heat preservation housing (102) is installed at the rear end of the first heat preservation housing (101); positioning buckles (103) with matching positions are fixedly connected to the inner sides of the first heat preservation housing (101) and the second heat preservation housing (102).

4. A waste heat recovery device according to claim 3, characterized in that: The heat preservation and positioning component further includes symmetrically arranged feet (104) fixedly connected to the lower ends of the first heat preservation housing (101) and the second heat preservation housing (102).

5. The waste heat recovery device according to claim 1, characterized in that: The heat exchange component (3) includes a heat conduction cavity (301), an air inlet pipe (302), an air outlet pipe (303), and a guide fan (304). There are three heat conduction cavities (301) which are vertically equidistantly distributed; adjacent heat conduction cavities (301) are fixedly connected by a communication pipe; the air inlet pipe (302) is arranged on the bottom heat conduction cavity (301); the air outlet pipe (303) is arranged on the top heat conduction cavity (301); guide fans (304) are installed inside the air inlet pipe (302) and the air outlet pipe (303).

6. A waste heat recovery device according to claim 1, characterized in that: The filtration component (4) includes a treatment box (401), a sealing cover (402), a limit sliding groove (403), a filter screen group (404), a moisture removal plate group (405), a limit sliding block (406), a scraping plate (407), and a filter residue collection box (408); the sealing cover (402) is fitted and connected to the upper end of the treatment box (401); a filter screen group (404) is installed on one side of the lower end of the sealing cover (402), and a moisture removal plate group (405) is installed on the other side; limit sliding blocks (406) are fixedly connected to the upper ends of the moisture removal plate group (405) and the filter screen group (404); a limit sliding groove (403) is opened at the lower end of the sealing cover (402); the limit sliding block (406) is slidably connected to the limit sliding groove (403); a scraping plate (407) is arranged in the upper middle part of the treatment box (401); a diversion plate for backward diversion is arranged at the inner bottom end of the treatment box (401); the filter residue collection box (408) is fixedly connected to the rear end of the treatment box (401).

7. A waste heat recovery device according to claim 6, characterized in that: The limit sliding grooves (403) at the lower end of the sealing cover (402) are equidistantly distributed and the cross section of the limit sliding groove (403) is "T" shaped, and the cross section of the limit sliding block (406) is "T" shaped.

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