Waste heat recovery cyclic heating system

Abstract

The utility model discloses a waste heat recovery circulating heating system, which belongs to the technical field of waste heat recovery, and adopts the technical scheme that the waste heat recovery circulating heating system comprises a waste heat recovery box, a heating mechanism is arranged in the waste heat recovery box, a filter box is arranged on the front side of the waste heat recovery box, and a water injection hopper is arranged at the top of the waste heat recovery box; the heating mechanism comprises a waste gas bin, a water storage bin and an exhaust pipe, the rear side of the exhaust pipe sequentially penetrates through the waste heat recovery box and the water outlet bin and fixedly communicates with the interior of the waste gas bin, the waste gas bin and the water storage bin are both arranged in the waste heat recovery box, and the rear side of the filter box fixedly communicates with the front side of the exhaust pipe; the problems that an exhaust position of an existing device for preheating and recycling waste gas and then heating water is not provided with a filtering structure, waste gas obtained after waste heat recycling and utilization is not filtered and then discharged, air pollution is caused, burden is caused to ecological environment protection work, and therefore the using effect is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery, in particular to a waste heat recovery circulation heating system. Background Art

[0002] In the industrial production process, a certain amount of high-temperature waste gas is often generated. These waste gases are often discharged directly after treatment, and the heat energy of the waste gas is not utilized, resulting in energy waste.

[0003] At present, a Chinese patent with announcement number CN208833068U discloses an exhaust gas waste heat recovery device, which includes a heat exchange box, a heat exchange tube, a water inlet pipe, a water outlet pipe, an air inlet pipe, and an air outlet pipe. The heat exchange box is in the shape of a rectangular parallelepiped, the water inlet pipe is arranged above the top cover of the heat exchange box, the water outlet pipe is arranged below the bottom plate of the heat exchange box, a water distributor is arranged below the water inlet pipe, the water distributor is provided with a square water distributor plate, the water distributor plate is provided with multiple water distribution holes in the horizontal and vertical directions, each water distribution hole is connected to a heat exchange tube, a water collector is arranged below the heat exchange tube, and the water collector is connected to the water outlet pipe below.

[0004] After the applicant consulted the Chinese patent with publication number CN208833068U, the following problems were found:

[0005] The existing equipment that preheats waste gas, recycles it and then heats water does not have a filtering structure at the exhaust position. The waste gas after waste heat recovery and utilization is not filtered and then discharged, which will cause air pollution and impose a burden on ecological environmental protection work. Utility Model Content

[0006] The utility model provides a waste heat recovery circulation heating system, which aims to solve the problem that the existing equipment for preheating waste gas, recovering it and then heating water does not have a filtering structure at the exhaust position, and the waste gas after waste heat recovery and utilization cannot be filtered before being discharged, which will cause air pollution and burden the ecological environment protection work, thereby affecting the use effect.

[0007] The utility model is implemented as follows: a waste heat recovery circulation heating system comprises a waste heat recovery box, a heating mechanism is arranged inside the waste heat recovery box, a filter box is arranged at the front side of the waste heat recovery box, and a water injection hopper is arranged at the top of the waste heat recovery box;

[0008] The heating mechanism includes a waste gas bin, a water storage bin and an exhaust pipe. The rear side of the exhaust pipe passes through the waste heat recovery box and the water outlet bin in sequence and is fixedly connected to the interior of the waste gas bin. The waste gas bin and the water storage bin are both arranged inside the waste heat recovery box. The rear side of the filter box is fixedly connected to the front side of the exhaust pipe.

[0009] In order to facilitate the injection of water into the water storage tank, as a preferred waste heat recovery circulation heating system of the utility model, the bottom of the water injection bucket passes through the waste heat recovery box and is fixedly connected to the interior of the water storage tank, the inner wall of the water injection bucket is threadedly connected to a sealing cover, and the top of the sealing cover is fixedly connected to a twist ring.

[0010] In order to facilitate the input of exhaust gas into the exhaust gas bin, as a preferred waste heat recovery circulation heating system of the utility model, an air intake pipe is provided on the top of the waste heat recovery box, and the bottom of the air intake pipe passes through the waste heat recovery box and is fixedly connected to the interior of the exhaust gas bin.

[0011] In order to achieve the effect of balancing the pressure inside and outside the water storage tank, as a preferred waste heat recovery circulation heating system of the utility model, an exhaust hole is opened on the top of the waste heat recovery box, and the exhaust hole is connected to the water storage tank.

[0012] In order to facilitate the filtering of exhaust gas, as a preferred waste heat recovery circulation heating system of the utility model, an opening is opened inside the filter box, a filter element is arranged on the top of the filter box, a block is fixedly connected to the top of the filter element, the bottom of the filter element passes through the opening and extends to the interior of the filter box, the surface of the filter element contacts the inner wall of the filter box, and the surface of the block contacts the inner wall of the opening.

[0013] In order to facilitate the effect of limiting the filter element, as a preferred waste heat recovery circulation heating system of the utility model, the top of the clamping block is fixedly connected with a first fixed block, the top of the filter box is fixedly connected with a second fixed block, and a limiting pin is provided on the front side of the second fixed block, and the rear side of the limiting pin passes through the second fixed block and extends to the interior of the first fixed block.

[0014] In order to achieve the effect of limiting the limit pin, as a preferred waste heat recovery circulation heating system of the utility model, the rear side of the limit pin is fixedly connected with a magnet, and the surface of the magnet is magnetically attracted to the inside of the first fixed block.

[0015] In order to facilitate the movement of the waste heat recovery box and support the waste heat recovery box, as a preferred waste heat recovery circulation heating system of the utility model, handles are fixedly connected on both sides of the waste heat recovery box, and legs are fixedly connected at the four corners of the bottom of the waste heat recovery box.

[0016] In order to facilitate the discharge of water from the water storage tank, as a preferred waste heat recovery circulation heating system of the utility model, a drain pipe is provided on the left side of the waste heat recovery tank, and a valve is rotatably connected to the top of the drain pipe.

[0017] In order to facilitate observation of the amount of water inside the water storage tank, as a preferred waste heat recovery circulation heating system of the utility model, a visual window is embedded on the left side of the waste heat recovery box, and a scale groove is opened on the left side of the waste heat recovery box, and the number of the scale grooves is several.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The waste heat recovery circulation heating system connects the waste gas source with heat to the air inlet pipe, and then adds water into the water storage tank through the water injection bucket. At this time, the waste gas with heat will be added to the waste gas tank and circulate inside the waste gas tank. At this time, the waste heat recovery box can absorb the heat in the waste gas and transfer it to the water inside the water storage tank inside the waste heat recovery box. At this time, the water inside the water storage tank will absorb the waste heat in the waste gas and slowly heat up. The heated water can be supplied to people for daily use, and the waste heat in the waste gas can be recycled. Subsequently, the waste gas will enter the interior of the filter box through the exhaust pipe, be filtered through the filter element and then discharged, avoiding the problem that the exhaust position of the existing equipment that preheats the waste gas to recover and then heats the water does not have a filtering structure, and the waste gas after waste heat recovery and utilization is not filtered and then discharged, which will cause air pollution and burden on ecological environmental protection work. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the overall structural diagram of the waste heat recovery circulation heating system of the utility model;

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure inside the waste heat recovery box in the utility model;

[0022] Figure 3 It is a three-dimensional exploded schematic diagram of the filter box and the filter element in the utility model;

[0023] Figure 4 It is a three-dimensional exploded schematic diagram of the water injection hopper and the sealing cover in the utility model;

[0024] Figure 5 It is a three-dimensional structural schematic diagram of the waste heat recovery box in the utility model;

[0025] Figure 6 It is a three-dimensional connection schematic diagram of the limit pin and the magnet in the utility model.

[0026] In the figure, 1. waste heat recovery box; 2. water filling bucket; 3. air inlet pipe; 4. handle; 5. support leg; 6. drain pipe; 7. valve; 8. scale groove; 9. heating mechanism; 901. waste gas bin; 902. water storage bin; 903. exhaust pipe; 10. visual window; 11. filter box; 12. block; 13. first fixed block; 14. filter element; 15. limit pin; 16. second fixed block; 17. opening; 18. sealing cover; 19. screw ring; 20. exhaust hole; 21. magnet. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0029] See also Figure 1-6 The utility model provides a technical solution: a waste heat recovery circulation heating system, comprising a waste heat recovery box 1, a heating mechanism 9 is arranged inside the waste heat recovery box 1, a filter box 11 is arranged on the front side of the waste heat recovery box 1, and a water injection hopper 2 is arranged on the top of the waste heat recovery box 1;

[0030] The heating mechanism 9 includes a waste gas bin 901, a water storage bin 902 and an exhaust pipe 903. The rear side of the exhaust pipe 903 passes through the waste heat recovery box 1 and the water outlet bin in sequence and is fixedly connected to the interior of the waste gas bin 901. The waste gas bin 901 and the water storage bin 902 are both arranged inside the waste heat recovery box 1, and the rear side of the filter box 11 is fixedly connected to the front side of the exhaust pipe 903.

[0031] In this embodiment: by connecting the exhaust gas source with heat to the air inlet pipe 3, and then adding water into the water storage tank 902 through the water injection bucket 2, the exhaust gas with heat will be added to the exhaust gas tank 901, and circulate inside the exhaust gas tank 901. At this time, the waste heat recovery box 1 can absorb the heat in the exhaust gas and transfer it to the water inside the water storage tank 902 inside the waste heat recovery box 1. At this time, the water inside the water storage tank 902 will absorb the waste heat in the exhaust gas and slowly heat up. The heated water can be supplied to people for daily use, and the waste heat in the exhaust gas can be recycled. Subsequently, the exhaust gas will enter the interior of the filter box 11 through the exhaust pipe 903, be filtered through the filter element 14, and then be discharged, avoiding the problem that the exhaust position of the existing equipment that preheats the exhaust gas to recover and then heats the water does not have a filtering structure, and the exhaust gas after waste heat recovery and utilization is not filtered and discharged, which will cause air pollution and burden on ecological environmental protection work.

[0032] As a technical optimization solution of the utility model, the bottom of the water injection bucket 2 passes through the waste heat recovery box 1 and is fixedly connected to the interior of the water storage tank 902. The inner wall of the water injection bucket 2 is threadedly connected with a sealing cover 18, and the top of the sealing cover 18 is fixedly connected with a twist ring 19.

[0033] In this embodiment: by rotating the sealing cover 18, the sealing cover 18 is connected to the inner wall of the water injection bucket 2 through a thread. By rotating the sealing cover 18, the sealing cover 18 can be separated from the water injection bucket 2, and water can be conveniently added to the water storage tank 902 through the water injection bucket 2, thereby achieving the effect of facilitating the injection of water into the water storage tank 902.

[0034] As a technical optimization solution of the present invention, an air intake pipe 3 is provided on the top of the waste heat recovery box 1 , and the bottom of the air intake pipe 3 passes through the waste heat recovery box 1 and is fixedly connected with the interior of the waste gas bin 901 .

[0035] In this embodiment, the waste gas can be input into the waste gas bin 901 by connecting the waste gas source with heat to the machine pipe, thereby achieving the effect of conveniently inputting the waste gas into the waste gas bin 901.

[0036] As a technical optimization solution of the present invention, an exhaust hole 20 is opened on the top of the waste heat recovery box 1, and the exhaust hole 20 is connected to the water storage tank 902.

[0037] In this embodiment: the water vapor generated after the water inside the water storage tank 902 is heated will be discharged through the exhaust hole 20. When the valve 7 is opened to drain the water, the air outside the waste heat recovery box 1 will enter the water storage tank 902 through the exhaust hole 20, keeping the pressure inside and outside the water storage tank 902 equal, thereby achieving the effect of balancing the pressure inside and outside the water storage tank 902.

[0038] As a technical optimization solution of the utility model, an opening 17 is opened inside the filter box 11, a filter element 14 is arranged on the top of the filter box 11, a block 12 is fixedly connected to the top of the filter element 14, the bottom of the filter element 14 passes through the opening 17 and extends to the inside of the filter box 11, the surface of the filter element 14 contacts the inner wall of the filter box 11, and the surface of the block 12 contacts the inner wall of the opening 17.

[0039] In this embodiment, the exhaust gas entering the filter box 11 will be filtered through the filter element 14, thereby achieving the effect of facilitating the filtering of the exhaust gas.

[0040] As a technical optimization solution of the utility model, the top of the clamping block 12 is fixedly connected to the first fixed block 13, the top of the filter box 11 is fixedly connected to the second fixed block 16, and a limiting pin 15 is provided on the front side of the second fixed block 16. The rear side of the limiting pin 15 passes through the second fixed block 16 and extends to the interior of the first fixed block 13.

[0041] In this embodiment, the limiting pin 15 passes through the first fixing block 13 and extends to the inside of the second fixing block 16 . At this time, the limiting pin 15 can limit the filter element 14 , thereby achieving the effect of facilitating the limiting of the filter element 14 .

[0042] As a technical optimization solution of the utility model, a magnet 21 is fixedly connected to the rear side of the limiting pin 15 , and the surface of the magnet 21 is magnetically attracted to the inside of the first fixing block 13 .

[0043] In this embodiment: the magnet 21 on the rear side of the limit pin 15 is magnetically attracted to the inside of the first fixed block 13, so that the magnet 21 can limit the limit pin 15 to prevent the limit pin 15 from being separated from the first fixed block 13, thereby achieving the effect of limiting the limit pin 15.

[0044] As a technical optimization solution of the utility model, handles 4 are fixedly connected to both sides of the waste heat recovery box 1, and legs 5 are fixedly connected to the four corners of the bottom of the waste heat recovery box 1.

[0045] In this embodiment: by holding the handle 4, the waste heat recovery box 1 can be moved to a stable position by moving the handle 4. At this time, the legs 5 at the bottom of the waste heat recovery box 1 will stably support the waste heat recovery box 1, thereby achieving the effect of facilitating the movement of the waste heat recovery box 1 and supporting the waste heat recovery box 1.

[0046] As a technical optimization solution of the utility model, a drain pipe 6 is provided on the left side of the waste heat recovery box 1, and a valve 7 is rotatably connected to the top of the drain pipe 6.

[0047] In this embodiment, the heated water can be discharged from the water storage tank 902 by opening the valve 7, thereby achieving the effect of conveniently discharging the water from the water storage tank 902.

[0048] As a technical optimization solution of the utility model, a visual window 10 is embedded on the left side of the waste heat recovery box 1, and a scale groove 8 is opened on the left side of the waste heat recovery box 1, and the number of the scale grooves 8 is several.

[0049] In this embodiment: the water level inside the water storage tank 902 can be observed through the visual window 10, and then the water volume inside the water storage tank 902 can be determined in conjunction with the scale groove 8, thereby achieving the effect of conveniently observing the water volume inside the water storage tank 902.

[0050] Working principle: First, hold the handle 4 and move the handle 4 to move the waste heat recovery box 1 to a stable position. At this time, the support legs 5 at the bottom of the waste heat recovery box 1 will stably support the waste heat recovery box 1, and then connect the waste gas source with heat to the air inlet pipe 3, and then add water into the water storage tank 902 through the water injection bucket 2. At this time, the waste gas with heat will be added to the waste gas bin 901 and circulate inside the waste gas bin 901. At this time, the waste heat recovery box 1 can absorb the heat in the waste gas and transfer it to the water inside the water storage tank 902 inside the waste heat recovery box 1. At this time, the water inside the water storage tank 902 will absorb the waste heat in the waste gas and slowly heat up. Then the waste gas will enter the filter box 11 through the exhaust pipe 903. At this time, the filter element 14 inside the filter box 11 will filter the dust and harmful substances in the waste gas and discharge them out of the filter box 11, so as to avoid the exhaust of the equipment that preheats the waste gas for recovery and then heats the water. The position does not have a filtering structure, and the exhaust gas after waste heat recovery and utilization cannot be filtered and discharged, which will cause air pollution and impose a burden on ecological environmental protection work. When the water inside the water storage tank 902 is heated, the water vapor generated will be discharged through the exhaust hole 20, so that the pressure inside and outside the water storage tank 902 is equal. When the water inside the water storage tank 902 is heated, the valve 7 can be opened to discharge the heated water from the water storage tank 902. At this time, the heated water can be supplied to people for daily use, and the waste heat in the exhaust gas can be recycled. The water level inside the water storage tank 902 can be observed through the visual window 10, and then the water volume inside the water storage tank 902 can be determined by cooperating with the scale groove 8. When the filter element 14 needs to be replaced, the limit pin 15 is pulled out from the first fixed block 13, and then the first fixed block 13 is pulled upward. At this time, the block 12 and the filter element 14 can be taken out from the filter box 11 for replacement.

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A waste heat recovery circulation heating system, comprising a waste heat recovery tank (1), characterized in that: A heating mechanism (9) is arranged inside the waste heat recovery box (1), a filter box (11) is arranged on the front side of the waste heat recovery box (1), and a water injection hopper (2) is arranged on the top of the waste heat recovery box (1); The heating mechanism (9) comprises a waste gas bin (901), a water storage bin (902) and an exhaust pipe (903); the rear side of the exhaust pipe (903) passes through the waste heat recovery box (1) and the water outlet bin in sequence and is fixedly connected to the interior of the waste gas bin (901); the waste gas bin (901) and the water storage bin (902) are both arranged inside the waste heat recovery box (1); and the rear side of the filter box (11) is fixedly connected to the front side of the exhaust pipe (903).

2. A waste heat recovery cycle heating system according to claim 1, characterized in that: The bottom of the water injection hopper (2) passes through the waste heat recovery box (1) and is fixedly connected to the interior of the water storage bin (902); the inner wall of the water injection hopper (2) is threadedly connected to a sealing cover (18); and the top of the sealing cover (18) is fixedly connected to a twist ring (19).

3. The waste heat recovery cycle heating system according to claim 1 is characterized in that: An air intake pipe (3) is arranged at the top of the waste heat recovery box (1), and the bottom of the air intake pipe (3) passes through the waste heat recovery box (1) and is fixedly connected to the interior of the waste gas bin (901).

4. The waste heat recovery cycle heating system according to claim 1 is characterized in that: The top of the waste heat recovery box (1) is provided with an exhaust hole (20), and the exhaust hole (20) is connected to the water storage tank (902).

5. The waste heat recovery cycle heating system according to claim 1 is characterized in that: An opening (17) is provided inside the filter box (11); a filter element (14) is arranged on the top of the filter box (11); a clamping block (12) is fixedly connected to the top of the filter element (14); the bottom of the filter element (14) passes through the opening (17) and extends to the inside of the filter box (11); the surface of the filter element (14) contacts the inner wall of the filter box (11); and the surface of the clamping block (12) contacts the inner wall of the opening (17).

6. A waste heat recovery cycle heating system according to claim 5, characterized in that: The top of the clamping block (12) is fixedly connected to a first fixing block (13), the top of the filter box (11) is fixedly connected to a second fixing block (16), a limiting pin (15) is provided on the front side of the second fixing block (16), and the rear side of the limiting pin (15) passes through the second fixing block (16) and extends to the interior of the first fixing block (13).

7. A waste heat recovery cycle heating system according to claim 6, characterized in that: A magnet (21) is fixedly connected to the rear side of the limiting pin (15), and the surface of the magnet (21) is magnetically attracted to the interior of the first fixing block (13).

8. The waste heat recovery cycle heating system according to claim 1, characterized in that: Handles (4) are fixedly connected to both sides of the waste heat recovery box (1), and legs (5) are fixedly connected to the four corners of the bottom of the waste heat recovery box (1).

9. The waste heat recovery cycle heating system according to claim 1, characterized in that: A drain pipe (6) is provided on the left side of the waste heat recovery box (1), and a valve (7) is rotatably connected to the top of the drain pipe (6).

10. The waste heat recovery circulation heating system according to claim 1, characterized in that: The left side of the waste heat recovery box (1) is inlaid with a visual window (10), and the left side of the waste heat recovery box (1) is provided with a scale groove (8), and the number of the scale grooves (8) is several.

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