Methanation steam waste heat recovery device

Abstract

A methanation steam waste heat recovery device comprises a supporting frame, a conversion box is arranged on the supporting frame, one side of the conversion box is connected with a gas guide pipe, a first fan used for sucking in steam is arranged in the gas guide pipe, a first isolation plate is fixedly connected into the conversion box, a square through hole is formed in the first isolation plate, and a second fan used for sucking in steam is arranged in the square through hole. A second isolation plate is fixedly connected into the conversion box, and a circular through hole is formed in the second isolation plate. When steam enters the upper-layer space and the lower-layer space of the conversion box, the flow limiting plates block the steam into the spaces and enable the steam to stay for a certain time, so that the steam discharging speed is reduced, and it is guaranteed that steam waste heat is fully utilized.

Description

Technical Field

[0001] The utility model relates to a waste heat recovery device, in particular to a methanation steam waste heat recovery device. Background Art

[0002] Methanation refers to a reaction in which hydrogen reacts with methanation catalyst at a certain temperature to generate methane and water vapor, and then condenses and separates the water vapor through cooling to finally obtain qualified hydrogen containing only methane impurities. The methanation reaction technology is mainly used in the production of coal-to-natural gas. However, during the production process, the steam emitted after use is prone to cause environmental pollution and energy waste. In order to save energy and reduce pollution, the emitted steam is usually recycled.

[0003] Currently, waste heat recovery devices are used to recover the steam emitted from the methanation reaction. The steam waste heat recovery device uses heat exchange to recover the heat carried by the steam, and then heats another medium, air or water, to achieve energy conservation and environmental protection. However, the existing waste heat recovery device discharges steam too quickly, and the steam waste heat cannot be fully utilized, resulting in poor recovery efficiency.

[0004] Therefore, there is an urgent need to provide a methanation steam waste heat recovery device that can slow down the steam discharge rate and make full use of the steam waste heat. Utility Model Content

[0005] In order to overcome the shortcomings of existing waste heat recovery devices, such as excessively fast steam exhaust speed, inability to fully utilize the steam waste heat, and poor recovery efficiency, the utility model provides a methanation steam waste heat recovery device that can slow down the steam exhaust speed and fully utilize the steam waste heat.

[0006] In order to solve the above problems, the utility model adopts the following technical scheme: a methanogenic steam waste heat recovery device, including a support frame, a conversion box is arranged on the support frame, an air duct is connected to one side of the conversion box, a No. 1 fan for drawing in steam is arranged in the air duct, a No. 1 isolation plate is fixedly connected in the conversion box, a square through hole is opened in the No. 1 isolation plate, a No. 2 isolation plate is fixedly connected in the conversion box, a circular through hole is opened in the No. 2 isolation plate, an air bag is arranged on the inner wall of the conversion box, and the air bag can be compressed when the pressure difference between the inside and outside of the conversion box is large, a one-way valve is arranged on the air bag, a pull rod is arranged on the air bag, and the No. 1 isolation plate on the upper side is fixedly connected to the conversion box. A connecting plate is connected between the No. 2 isolation plate and between the No. 1 isolation plate and the No. 2 isolation plate on the lower side. A limiting flow plate is slidably arranged on the connecting plate. The compressed airbag can drive the pull rod to move to the left, so that the pull rod pulls the limiting flow plate open. An elastic part is sleeved on the connecting plate to reset the limiting flow plate. A No. 1 guide pipe runs through the conversion box, and cold water flows from top to bottom in the No. 1 guide pipe. The No. 1 guide pipe is connected and connected to a water inlet frame, and the No. 1 guide pipe is connected and connected to a water collecting frame, and the water collecting frame is connected and connected to a liquid outlet pipe, and a No. 1 ball valve is arranged on the liquid outlet pipe. A baffle is slidably arranged in the conversion box.

[0007] As an improvement of the above solution, the total number of the No. 1 isolation plates and the total number of the No. 2 isolation plates are both two.

[0008] As an improvement of the above solution, the two No. 1 isolation plates and the two No. 2 isolation plates are arranged alternately.

[0009] As an improvement of the above solution, the No. 1 flow guide pipe is arranged in a serpentine shape.

[0010] As an improvement of the above-mentioned solution, the conversion box is connected to and communicated with a guide cover, filter cotton is arranged in the guide cover, a water storage frame for collecting cleaning liquid is arranged in the support frame, one side of the water storage frame is connected to and communicated with a No. 2 guide pipe, and a water pump is arranged on the side of the conversion box close to the No. 1 guide pipe, and the water inlet end of the water pump is connected to the guide pipe.

[0011] As an improvement of the above scheme, a water tank filled with cleaning liquid is provided on the conversion box, and a No. 3 guide pipe is connected to and communicated with the water tank, and the No. 3 guide pipe is communicated with the water outlet end of the water pump, so that the water pump can pump the cleaning liquid in the water storage frame into the water tank when it is operated. A nozzle is provided on the water tank, and a No. 2 ball valve is provided on the water tank.

[0012] As an improvement of the above solution, the nozzle is located in the water tank.

[0013] As an improvement of the above-mentioned solution, one side of the conversion box is connected and communicated with an exhaust pipe and a purification box filled with activated carbon, the exhaust pipe is connected and communicated with the purification box, a No. 1 filter for filtering steam is provided in the purification box, a No. 2 fan is provided in the purification box, the No. 2 fan is located on the right side of the No. 1 filter, and the No. 2 fan can discharge steam when it is operated.

[0014] As an improvement of the above solution, a gas blocking cover is plugged on the purification box.

[0015] As an improvement of the above solution, a No. 2 filter is embedded in the air duct, and the No. 2 filter is located on the left side of the No. 1 fan.

[0016] Compared with the prior art, the utility model has the following technical effects: 1. When steam enters the upper and lower spaces of the conversion box, the flow limiting plate blocks the steam into the space, allowing the steam to stay for a certain period of time, thereby slowing down the steam discharge speed and ensuring that the steam waste heat is fully utilized.

[0017] 2. By turning on the nozzle, the nozzle will spray the cleaning liquid in the water tank evenly and in all directions into the conversion box, thereby removing the harmful gases remaining in the conversion box.

[0018] 3. The cleaning liquid can be collected by the water storage frame for subsequent reuse, and the cleaning liquid in the water storage frame can be pumped into the water tank for reuse through a water pump, thus achieving the purpose of saving water resources.

[0019] 4. The steam after heat exchange is drawn into the purification box through the No. 2 fan, and purified by the activated carbon in the purification box. After the harmful gas is removed, it is discharged, thereby effectively reducing environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the methanogenic steam waste heat recovery device of the utility model.

[0021] Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of the support frame, conversion box and air guide pipe of the utility model.

[0022] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle.

[0023] Figure 4 It is a three-dimensional cross-sectional structural schematic diagram of the water storage frame, the second guide pipe and the water pump of the utility model.

[0024] Figure 5 It is a three-dimensional cross-sectional structural schematic diagram of the water tank, No. 3 guide pipe and ball valve of the utility model.

[0025] Figure 6It is a three-dimensional cross-sectional structural schematic diagram of the air outlet pipe, the purification box and the first filter screen of the utility model.

[0026] Among them: 1: support frame, 2: conversion box, 3: air guide pipe, 4: No. 1 fan, 5: No. 1 isolation plate, 51: No. 2 isolation plate, 6: air bag, 7: one-way valve, 8: pull rod, 9: flow limiting plate, 10: connecting plate, 11: elastic part, 12: water inlet frame, 13: No. 1 guide pipe, 14: water collecting frame, 15: liquid outlet pipe, 16: No. 1 ball valve, 17: baffle, 18: guide cover, 1801: filter cotton, 19: water storage frame, 20: No. 2 guide pipe, 21: water pump, 22: water tank, 23: No. 3 guide pipe, 24: No. 2 ball valve, 2401: nozzle, 25: air outlet pipe, 26: purification box, 27: No. 1 filter, 28: No. 2 fan, 29: air blocking cover, 30: No. 2 filter. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with specific embodiments. It should also be noted that, unless otherwise clearly specified and limited, terms such as: setting, installing, connecting, and connecting should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Example 1: Please refer to Figure 1-Figure 3A methanogenic steam waste heat recovery device comprises a support frame 1, a conversion box 2 is arranged on the top of the support frame 1, two air ducts 3 symmetrically distributed front and back are connected to the left side of the conversion box 2, a No. 1 blower 4 for drawing steam is arranged in the air duct 3, a No. 1 isolation plate 5 is fixedly connected to the conversion box 2 by welding, and a square through hole is opened on the No. 1 isolation plate 5, a No. 2 isolation plate 51 is fixedly connected to the conversion box 2 by welding, and a circular through hole is opened on the No. 2 isolation plate 51, and the circular through hole on the No. 2 isolation plate 51 and the square through hole on the No. 1 isolation plate 5 are connected. The holes are used for steam to pass through. The total number of the No. 1 isolation plates 5 and the total number of the No. 2 isolation plates 51 are both two. The two No. 1 isolation plates 5 and the two No. 2 isolation plates 51 are arranged alternately up and down. Two air bags 6 are arranged on the left side wall inside the conversion box 2. The two air bags 6 are distributed between the No. 1 isolation plate 5 and the No. 2 isolation plate 51 on the upper side and between the No. 1 isolation plate 5 and the No. 2 isolation plate 51 on the lower side. When the pressure difference between the inside and outside of the conversion box 2 is large, the air bag 6 can be compressed. A one-way valve 7 is arranged on the air bag 6, and a pull rod 8 is arranged on the air bag 6. A connecting plate 10 is connected between the No. 1 isolation plate 5 and the No. 2 isolation plate 51 on the upper side and between the No. 1 isolation plate 5 and the No. 2 isolation plate 51 on the lower side. A limiting plate 9 is slidably arranged on the connecting plate 10. The compressed airbag 6 can drive the pull rod 8 to move to the left, so that the pull rod 8 pulls the limiting plate 9 open. An elastic member 11 is sleeved on the connecting plate 10 to reset the limiting plate 9. The two ends of the elastic member 11 are respectively connected to the limiting plate 9 and the connecting plate 10. A No. 1 guide pipe 13 is passed through the conversion box 2. The No. 1 guide pipe 13 is serpentine. The shape is set to better exchange heat with steam, and cold water flows from top to bottom in the No. 1 guide pipe 13, the upper end of the No. 1 guide pipe 13 is connected and communicated with a water inlet frame 12, the lower end of the No. 1 guide pipe 13 is connected and communicated with a water collecting frame 14, the bottom of the water collecting frame 14 is connected and communicated with a liquid outlet pipe 15, and a No. 1 ball valve 16 is arranged on the liquid outlet pipe 15, and a baffle 17 is slidingly arranged at the bottom of the conversion box 2, and a No. 2 filter 30 is embedded in the air guide pipe 3, and the No. 2 filter 30 is located on the left side of the No. 1 fan 4, and the No. 2 filter 30 is used to prevent foreign matter from entering the air guide pipe 3.

[0029] When in use, start the No. 1 fan 4 to draw steam into the conversion box 2, and the steam enters the space between the No. 1 isolation plate 5 and the No. 2 isolation plate 51 of the lower layer through the circular through hole. The flow limiting plate 9 blocks the steam into the space, allowing the steam to stay for a certain time. When the pressure in the space reaches a certain value, the airbag 6 is compressed, and the pull rod 8 pulls the flow limiting plate 9 to the left to release the steam. The elastic member 11 is compressed accordingly, and then the steam enters the space between the No. 1 isolation plate 5 and the No. 2 isolation plate 51 of the upper layer, and is discharged after staying for a certain time, thereby slowing down the steam discharge speed and ensuring that the residual heat of the steam is fully utilized. Example

[0030] Based on Example 1, please refer to Figure 4 The bottom of the conversion box 2 is connected and communicated with a guide cover 18, and a filter cotton 1801 for filtering the cleaning liquid is arranged in the guide cover 18. A water storage frame 19 for collecting the cleaning liquid is arranged in the support frame 1. The water storage frame 19 is located below the conversion box 2. The rear side of the water storage frame 19 is connected and communicated with a No. 2 guide pipe 20. A water pump 21 is arranged on the side of the conversion box 2 close to the No. 1 guide pipe 13, and the water inlet end of the water pump 21 is communicated with the guide pipe.

[0031] See also Figure 5 A water tank 22 filled with cleaning liquid is arranged on the top of the conversion box 2, and a No. 3 guide pipe 23 is connected to the top of the water tank 22 and communicated with the water outlet end of the water pump 21, so that the water pump 21 can operate to pump the cleaning liquid in the water storage frame 19 into the water tank 22, and a nozzle 2401 is arranged on the water tank 22, and the nozzle 2401 is located in the water tank 22, and a No. 2 ball valve 24 is arranged on the water tank 22.

[0032] After the use of this device is completed, first pull out the baffle 17, and then turn on the nozzle 2401. The nozzle 2401 will spray the cleaning liquid in the water tank 22 evenly and in all directions into the conversion box 2, so as to remove the harmful gases remaining in the conversion box 2. The cleaning liquid flows downward along the No. 1 isolation plate 5 and the No. 2 isolation plate 51 into the guide cover 18, and after the harmful objects are filtered out by the filter cotton 1801, it flows into the water storage frame 19 for collection, which is convenient for subsequent reuse. Then, the water pump 21 is started, and the water pump 21 draws the cleaning liquid in the water storage frame 19 into the water tank 22 for reuse, thereby achieving the purpose of saving water resources.

[0033] See also Figure 6The right side of the conversion box 2 is connected and communicated with an air outlet pipe 25 and a purification box 26 filled with activated carbon. The air outlet pipe 25 is connected and communicated with the purification box 26. A No. 1 filter 27 for filtering steam is arranged in the purification box 26. A No. 2 fan 28 is arranged in the purification box 26. The No. 2 fan 28 is located on the right side of the No. 1 filter 27. The No. 2 fan 28 can discharge steam when it is operated. The purification box 26 is plugged with an air blocking cover 29. After the use of this device is completed, the purification box 26 is plugged with the air blocking cover 29 to prevent foreign matter from entering.

[0034] When the device is in use, the gas blocking cover 29 is removed and the No. 2 fan 28 is started. The No. 2 fan 28 first draws the steam after heat exchange into the purification box 26, and the activated carbon in the purification box 26 purifies it and removes harmful gases before discharging it, thereby effectively reducing environmental pollution.

[0035] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be the protection scope of the claims.

Claims

1. A methanogenic steam waste heat recovery device, characterized in that it comprises A support frame (1) is provided on the support frame (1), a conversion box (2) is provided on one side of the conversion box (2), an air duct (3) is connected to one side of the conversion box (2), a first blower (4) for drawing steam is provided in the air duct (3), a first isolation plate (5) is fixedly connected to the conversion box (2), a square through hole is provided on the first isolation plate (5), a second isolation plate (51) is fixedly connected to the conversion box (2), a circular through hole is provided on the second isolation plate (51), an air bag (6) is provided on the inner wall of the conversion box (2), a one-way valve (7) is provided on the air bag (6), a pull rod (8) is provided on the air bag (6), and a connecting plate (10) is connected between the first isolation plate (5) and the second isolation plate (51) on the upper side and between the first isolation plate (5) and the second isolation plate (51) on the lower side. 10), a limiting plate (9) is slidably arranged on the connecting plate (10), the compressed air bag (6) can drive the pull rod (8) to move to the left, so that the pull rod (8) pulls the limiting plate (9), the connecting plate (10) is sleeved with an elastic member (11) for resetting the limiting plate (9), a No. 1 guide pipe (13) runs through the conversion box (2), cold water flows from top to bottom in the No. 1 guide pipe (13), the No. 1 guide pipe (13) is connected and communicated with a water inlet frame (12), the No. 1 guide pipe (13) is connected and communicated with a water collecting frame (14), the water collecting frame (14) is connected and communicated with a liquid outlet pipe (15), a No. 1 ball valve (16) is arranged on the liquid outlet pipe (15), and a baffle (17) is slidably arranged in the conversion box (2).

2. A methanogenic steam waste heat recovery device according to claim 1, characterized in that: The total number of the No. 1 isolation plates (5) and the total number of the No. 2 isolation plates (51) are both two.

3. The methanation steam waste heat recovery device according to claim 1, characterized in that: The two No. 1 isolation plates (5) and the two No. 2 isolation plates (51) are arranged alternately.

4. The methanation steam waste heat recovery device according to claim 1 is characterized in that: The first flow guide pipe (13) is arranged in a serpentine shape.

5. The methanation steam waste heat recovery device according to claim 1, characterized in that: The conversion box (2) is connected to and communicated with a flow guide cover (18), and filter cotton (1801) is arranged in the flow guide cover (18). A water storage frame (19) for collecting cleaning liquid is arranged in the support frame (1), and one side of the water storage frame (19) is connected to and communicated with a second flow guide pipe (20). A water pump (21) is arranged on the side of the conversion box (2) close to the first flow guide pipe (13), and the water inlet end of the water pump (21) is communicated with the flow guide pipe.

6. The methanation steam waste heat recovery device according to claim 5, characterized in that: The conversion box (2) is provided with a water tank (22) containing cleaning liquid, and the water tank (22) is connected and communicated with a No. 3 flow guide pipe (23), and the No. 3 flow guide pipe (23) is communicated with the water outlet end of the water pump (21), so that the water pump (21) can operate to pump the cleaning liquid in the water storage frame (19) into the water tank (22), and the water tank (22) is provided with a nozzle (2401), and the water tank (22) is provided with a No. 2 ball valve (24).

7. The methanation steam waste heat recovery device according to claim 6, characterized in that: The nozzle (2401) is located in the water tank (22).

8. The methanation steam waste heat recovery device according to claim 1, characterized in that: One side of the conversion box (2) is connected and communicated with an air outlet pipe (25) and a purification box (26) filled with activated carbon. The air outlet pipe (25) is connected and communicated with the purification box (26). A No. 1 filter (27) for filtering steam is arranged in the purification box (26). A No. 2 fan (28) is arranged in the purification box (26). The No. 2 fan (28) is located on the right side of the No. 1 filter (27). The No. 2 fan (28) can discharge steam when it is operated.

9. A methanation steam waste heat recovery device according to claim 8, characterized in that: The purification box (26) is plugged with a gas blocking cover (29).

10. The methanation steam waste heat recovery device according to claim 1, characterized in that: The air guide pipe (3) is embedded with a No. 2 filter (30), and the No. 2 filter (30) is located on the left side of the No. 1 fan (4).

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