A lithium bromide coupled boiler flue gas waste heat recovery device

Abstract

This utility model relates to the field of lithium bromide processing technology and discloses a lithium bromide coupled boiler flue gas waste heat recovery device, including a waste heat recovery unit and a water inlet. The water inlet is fixedly connected to one side of the waste heat recovery unit, and one end of the water inlet is fixedly connected to a filter box. A filter plate is fixedly installed inside the filter box. This utility model, by setting a transmission mechanism, can open the conical slag discharge pipe by turning the sealing cover when there is too much impurity accumulation on the filter plate. At the same time, the motor is started, and the motor drives the lead screw to rotate. The lead screw drives the transmission block to move up and down reciprocally. The linkage block and the transmission rod move up and down synchronously with the transmission block. The transmission rod drives the cleaning plate and the brush to move up and down reciprocally. When the brush contacts the filter plate during the movement, it removes the impurities on the surface of the filter plate. Then the impurities are discharged from the conical slag discharge pipe.

Description

Technical Field

[0001] This utility model relates to the field of lithium bromide processing technology, specifically to a lithium bromide coupled boiler flue gas waste heat recovery device. Background Technology

[0002] Lithium bromide is an inorganic compound, a white cubic crystalline or granular powder, readily soluble in water, soluble in ethanol and ether, slightly soluble in pyridine, and soluble in organic solvents such as methanol, acetone, and ethylene glycol. It is a highly efficient water vapor absorbent and air humidity regulator. It can be used as an absorption refrigerant, a hydrogen chloride remover in organic chemistry, a fiber bulking agent, and also in the photosensitive industry, as an analytical chemical reagent, and as an electrolyte in some high-energy batteries. Coupled boilers are used in lithium bromide processing; to avoid wasting heat in the flue gas generated by these boilers, waste heat recovery devices are used to recover and reuse the waste heat.

[0003] A search revealed a Chinese patent document disclosing a boiler flue gas waste heat recovery heat exchanger [Announcement No.: CN218820481U]. It includes: a heat exchanger shell; an inlet pipe connected to one end of the heat exchanger shell; an outlet pipe connected to the other end of the heat exchanger shell; an inlet inclined port at one end of the inlet pipe; an outlet inclined port at one end of the outlet pipe; a middle partition plate in the middle of the heat exchanger shell; a U-shaped tube at one end inside the heat exchanger shell; U-shaped fins on the outside of the U-shaped tube; a liquid outlet connecting pipe connected to one end of the U-shaped tube; a liquid outlet port fixedly connected to one end of the liquid outlet connecting pipe; and an inlet connecting pipe connected to the other end of the U-shaped tube; a liquid inlet port fixedly connected to one end of the liquid inlet connecting pipe. This invention allows the flue gas to flow a longer path inside the heat exchanger shell during heat exchange due to the inclined inlet and outlet pipes, thus improving heat exchange efficiency. In addition, the multiple sets of U-tube fins at the upper and lower ends can greatly improve the overall heat exchange efficiency.

[0004] To prevent scale buildup in the cold fluid pipes of the waste heat recovery unit from affecting heat exchange efficiency, a filter plate is usually installed at the inlet to filter out some impurities in the water. However, considering that the filter plate surface is prone to clogging after long-term use, it can affect normal water intake. Utility Model Content

[0005] The purpose of this invention is to provide a lithium bromide coupled boiler flue gas waste heat recovery device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a lithium bromide coupled boiler flue gas waste heat recovery device, comprising a waste heat recovery unit and a water inlet, wherein the water inlet is fixedly connected to one side of the waste heat recovery unit, and a filter box is fixedly connected to one end of the water inlet, wherein a filter plate is fixedly installed inside the filter box, a cleaning plate is provided on one side of the filter plate, and a brush is fixedly connected to one side of the cleaning plate.

[0007] A transmission mechanism is fixedly installed on the top of the filter box and can control the brush to move back and forth up and down.

[0008] A blower mechanism is fixedly installed on both sides of the filter box, which can generate compressed gas to remove impurities adhering to the brush.

[0009] Preferably, the transmission mechanism includes a support frame fixedly connected to the top of the filter box, a motor fixedly connected to the inner wall of the support frame, a lead screw fixedly connected to the output end of the motor, a transmission block connected to the surface of the lead screw, a linkage block fixedly connected to one side of the transmission block, a transmission rod fixedly connected to the bottom of the linkage block, a transmission hole for cooperating with the transmission rod being opened on the top of the filter box, the bottom of the transmission rod passing through the transmission hole and fixedly connected to the top of the cleaning plate.

[0010] Preferably, the blower mechanism includes a compression chamber fixedly connected to both sides of the filter box. One side of the compression chamber is fixedly connected to an air inlet pipe via a one-way valve. The bottom of the compression chamber is fixedly connected to an air jet pipe via a one-way pressure valve. One end of the air jet pipe is fixedly connected to one side of the filter box. A piston plate is provided inside the compression chamber. A push block is fixedly connected to the top of the piston plate. A push rod is fixedly connected to the top of the push block. A first extrusion block is fixedly connected to the top of the push rod. Second extrusion blocks are fixedly connected to both sides of the linkage block. A spring is sleeved on the surface of the push rod. The top of the spring is fixedly connected to the bottom of the first extrusion block. The bottom of the spring is fixedly connected to the top of the compression chamber.

[0011] Preferably, a sealing ring is fixedly connected to the inner wall of the transmission hole, and the inner wall of the sealing ring is in contact with the surface of the transmission rod.

[0012] Preferably, the bottom of the lead screw is provided with a bearing seat, and the bearing seat is rotatably connected to the top of the compression box.

[0013] Preferably, the bottom of the filter box is fixedly connected to a conical slag discharge pipe, and the bottom of the conical slag discharge pipe is threadedly connected to a sealing cap.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model, by setting a transmission mechanism, can open the conical slag discharge pipe by screwing on the sealing cover when there is too much impurity accumulation on the filter plate. At the same time, the motor is started, and the motor drives the lead screw to rotate. The lead screw then drives the transmission block to move back and forth up and down. The linkage block and the transmission rod move back and forth up and down synchronously with the transmission block. The transmission rod drives the cleaning plate and the brush to move back and forth up and down. When the brush comes into contact with the filter plate during its movement, it removes the impurities on the surface of the filter plate. Then the impurities are discharged from the conical slag discharge pipe.

[0016] 2. By setting up a blower mechanism, this utility model can drive the second extrusion block to move downward while the linkage block moves downward. When the second extrusion block comes into contact with the first extrusion block, the first extrusion block will drive the push rod, push block and piston plate to move downward due to the extrusion. At the same time, the gas in the compression box is compressed. When the gas pressure in the compression box reaches the limit of the one-way pressure valve, the gas will be sprayed out from the jet pipe and blow onto the brush. The vibration generated by the compressed airflow causes the impurities to fall off, preventing the impurities from adhering to the filter plate again. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a perspective view of the filter box in this utility model;

[0019] Figure 3 This is a perspective view of the filter box in this utility model.

[0020] Figure 4 This utility model Figure 3 A magnified view of a section at point A in the middle;

[0021] Figure 5 This is a perspective view of a partial structure of the present invention;

[0022] Figure 6 This is a perspective view of the compression box in this utility model.

[0023] In the diagram: 1. Waste heat recovery unit; 2. Water inlet; 3. Filter box; 4. Filter plate; 5. Cleaning plate; 6. Brush; 7. Support frame; 8. Motor; 9. Lead screw; 10. Transmission block; 11. Linkage block; 12. Transmission rod; 13. Transmission hole; 14. Compression box; 15. Air inlet pipe; 16. Jet pipe; 17. Piston plate; 18. Push block; 19. Push rod; 20. First extrusion block; 21. Second extrusion block; 22. Sealing ring; 23. Bearing seat; 24. Conical slag discharge pipe; 25. Sealing cover; 26. Spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1 - Figure 6 As shown,

[0026] Example 1:

[0027] A lithium bromide coupled boiler flue gas waste heat recovery device includes a waste heat recovery unit 1 and a water inlet 2. The water inlet 2 is fixedly connected to one side of the waste heat recovery unit 1. A filter box 3 is fixedly connected to one end of the water inlet 2. A filter plate 4 is fixedly installed inside the filter box 3. A cleaning plate 5 is provided on one side of the filter plate 4. A brush 6 is fixedly connected to one side of the cleaning plate 5.

[0028] The transmission mechanism is fixedly installed on the top of the filter box 3 and can control the brush 6 to move back and forth up and down.

[0029] The blower mechanism is fixedly installed on both sides of the filter box 3 and can generate compressed gas to remove impurities adhering to the brush 6.

[0030] The transmission mechanism includes a support frame 7 fixedly connected to the top of the filter box 3. A motor 8 is fixedly connected to the inner wall of the support frame 7. A lead screw 9 is fixedly connected to the output end of the motor 8. A transmission block 10 is connected to the surface of the lead screw 9. A linkage block 11 is fixedly connected to one side of the transmission block 10. A transmission rod 12 is fixedly connected to the bottom of the linkage block 11. A transmission hole 13 is opened on the top of the filter box 3 to cooperate with the transmission rod 12. The bottom of the transmission rod 12 passes through the transmission hole 13 and is fixedly connected to the top of the cleaning plate 5.

[0031] In this embodiment, to avoid the formation of a large amount of scale in the cold fluid pipe of the waste heat recovery unit 1, which would affect the heat exchange effect, a filter plate 4 is generally installed at the inlet 2 to filter some impurities in the water. However, considering that the surface of the filter plate 4 is prone to clogging under long-term use, affecting normal water intake, a transmission mechanism is set up so that when too many impurities accumulate on the filter plate 4, the conical slag discharge pipe 24 can be opened by turning the sealing cover 25. At the same time, the motor 8 is started, which drives the lead screw 9 to rotate. The lead screw 9 then drives the transmission block 10 to move back and forth up and down. The linkage block 11 and the transmission rod 12 move back and forth up and down synchronously with the transmission block 10. The transmission rod 12 drives the cleaning plate 5 and the brush 6 to move back and forth up and down. When the brush 6 contacts the filter plate 4 during its movement, it removes the impurities on the surface of the filter plate 4. Afterward, the impurities are discharged from the conical slag discharge pipe 24.

[0032] A sealing ring 22 is fixedly connected to the inner wall of the transmission hole 13, and the inner wall of the sealing ring 22 is in contact with the surface of the transmission rod 12.

[0033] In this embodiment, the sealing ring 22 can play a sealing role and prevent water from leaking from the transmission hole 13 when the transmission rod 12 moves up and down.

[0034] The bottom of the lead screw 9 is provided with a bearing seat 23, and is rotatably connected to the top of the compression box 14 through the bearing seat 23.

[0035] In this embodiment, by setting the bearing seat 23, the lead screw 9 can be supported, and at the same time, it can be restricted to rotating only around the bearing seat 23, thereby improving its stability during rotation.

[0036] The bottom of the filter box 3 is fixedly connected to a conical slag discharge pipe 24, and the bottom of the conical slag discharge pipe 24 is threadedly connected to a sealing cap 25.

[0037] In this embodiment, by setting a conical slag discharge pipe 24 and a sealing cover 25, the conical slag discharge pipe 24 can be opened by twisting the sealing cover 25, and then the impurities cleaned from the filter plate 4 will be discharged from the conical slag discharge pipe 24.

[0038] Example 2:

[0039] Based on Embodiment 1, in this embodiment, the transmission mechanism can control the brush 6 to reciprocate to remove the impurities accumulated on the surface of the filter plate 4. However, some impurities will still adhere to the surface of the brush 6. When water is added later, the impurities will still accumulate on the filter plate 4. In this application, the blower mechanism includes a compression box 14 fixedly connected to both sides of the filter box 3. One side of the compression box 14 is fixedly connected to an air inlet pipe 15 through a one-way valve. The bottom of the compression box 14 is fixedly connected to an air jet pipe 16 through a one-way pressure valve. One end of the air jet pipe 16 is fixedly connected to one side of the filter box 3. A piston plate 17 is provided inside the compression box 14. A push block 18 is fixedly connected to the top of the piston plate 17. A push rod 19 is fixedly connected to the top of the push block 18. A first extrusion block 20 is fixedly connected to the top of the push rod 19. A second extrusion block 21 is fixedly connected to both sides of the linkage block 11. A spring 26 is sleeved on the surface of the push rod 19. The top of the spring 26 is fixedly connected to the bottom of the first extrusion block 20, and the bottom of the spring 26 is fixedly connected to the top of the compression box 14.

[0040] In this embodiment, by setting a blower mechanism, the second extrusion block 21 can be driven to move downward while the linkage block 11 moves downward. When the second extrusion block 21 comes into contact with the first extrusion block 20, the first extrusion block 20 will be driven to move the push rod 19, the push block 18 and the piston plate 17 downward due to the extrusion. At the same time, the gas in the compression box 14 is compressed. When the gas pressure in the compression box 14 reaches the limit of the one-way pressure valve, the gas will be sprayed out from the jet pipe 16 and blow onto the brush 6. The vibration generated by the compressed airflow causes the impurities to fall off, preventing the impurities from adhering to the filter plate 4 again.

[0041] When the second extrusion block 21 moves upward, the elastic force generated by the spring 26 will push the first extrusion block 20, the push rod 19, the push block 18 and the piston plate 17 to move upward. At this time, the compression box 14 is under negative pressure, and the gas will enter the gas collection box through the air inlet pipe 15.

[0042] It should be noted that when the gas in the compression chamber 14 reaches its limit, the brush 6 is exactly flush with the jet pipe 16 on one side.

[0043] Working principle: When too many impurities accumulate on the filter plate 4, the conical slag discharge pipe 24 can be opened by turning the sealing cover 25. At the same time, the motor 8 is started. The motor 8 will drive the lead screw 9 to rotate, and the lead screw 9 will drive the transmission block 10 to move back and forth up and down. The linkage block 11 and the transmission rod 12 will move back and forth up and down synchronously with the transmission block 10. The transmission rod 12 will drive the cleaning plate 5 and the brush 6 to move back and forth up and down. When the brush 6 contacts the filter plate 4 during the movement, it will remove the impurities on the surface of the filter plate 4. Then the impurities will be discharged from the conical slag discharge pipe 24.

[0044] As the linkage block 11 moves downward, it drives the second extrusion block 21 to move downward. When the second extrusion block 21 comes into contact with the first extrusion block 20, the first extrusion block 20 will be affected by the extrusion and drive the push rod 19, the push block 18 and the piston plate 17 to move downward. At the same time, the gas in the compression box 14 is compressed. When the gas pressure in the compression box 14 reaches the limit of the one-way pressure valve, the gas will be sprayed out from the jet pipe 16 and blow onto the brush 6. The vibration generated by the compressed airflow causes the impurities to fall off, preventing the impurities from adhering to the filter plate 4 again.

[0045] It should be noted that the waste heat recovery unit 1 and the motor 8 are existing devices or equipment, or devices or equipment that can be implemented by existing technology, and the specific composition and principle of the power supply of the waste heat recovery unit 1 and the motor 8 are clear to those skilled in the art, so they will not be described in detail here.

[0046] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lithium bromide coupled boiler flue gas waste heat recovery device, comprising a waste heat recovery device (1) and a water inlet (2), the water inlet (2) is fixedly connected to one side of the waste heat recovery device (1), characterized in that: One end of the water inlet (2) is fixedly connected to a filter box (3), a filter plate (4) is fixedly installed inside the filter box (3), a cleaning plate (5) is provided on one side of the filter plate (4), and a brush (6) is fixedly connected to one side of the cleaning plate (5). The transmission mechanism is fixedly installed on the top of the filter box (3) and can control the brush (6) to move back and forth up and down. The blower mechanism is fixedly installed on both sides of the filter box (3) and can generate compressed gas to remove impurities adhering to the brush (6).

2. A lithium bromide coupled boiler flue gas waste heat recovery device according to claim 1, characterized in that: The transmission mechanism includes a support frame (7) fixedly connected to the top of the filter box (3). A motor (8) is fixedly connected to the inner wall of the support frame (7). A lead screw (9) is fixedly connected to the output end of the motor (8). A transmission block (10) is connected to the surface of the lead screw (9). A linkage block (11) is fixedly connected to one side of the transmission block (10). A transmission rod (12) is fixedly connected to the bottom of the linkage block (11). A transmission hole (13) is opened at the top of the filter box (3) to cooperate with the transmission rod (12). The bottom of the transmission rod (12) passes through the transmission hole (13) and is fixedly connected to the top of the cleaning plate (5).

3. A lithium bromide coupled boiler flue gas waste heat recovery device according to claim 2, characterized in that: The blower mechanism includes a compression box (14) fixedly connected to both sides of the filter box (3). One side of the compression box (14) is fixedly connected to an air inlet pipe (15) via a one-way valve. The bottom of the compression box (14) is fixedly connected to an air jet pipe (16) via a one-way pressure valve. One end of the air jet pipe (16) is fixedly connected to one side of the filter box (3). A piston plate (17) is provided inside the compression box (14). A push block (18) is fixedly connected to the top of the piston plate (17). A push rod (19) is fixedly connected to the top of the push block (18). A first extrusion block (20) is fixedly connected to the top of the push rod (19). A second extrusion block (21) is fixedly connected to both sides of the linkage block (11). A spring (26) is sleeved on the surface of the push rod (19). The top of the spring (26) is fixedly connected to the bottom of the first extrusion block (20). The bottom of the spring (26) is fixedly connected to the top of the compression box (14).

4. A lithium bromide coupled boiler flue gas waste heat recovery device according to claim 2, characterized in that: A sealing ring (22) is fixedly connected to the inner wall of the transmission hole (13), and the inner wall of the sealing ring (22) is in contact with the surface of the transmission rod (12).

5. A lithium bromide coupled boiler flue gas waste heat recovery device according to claim 2, characterized in that: The bottom of the lead screw (9) is provided with a bearing seat (23), and is rotatably connected to the top of the compression box (14) through the bearing seat (23).

6. A lithium bromide coupled boiler flue gas waste heat recovery device according to claim 1, characterized in that: The bottom of the filter box (3) is fixedly connected to a conical slag discharge pipe (24), and the bottom of the conical slag discharge pipe (24) is threadedly connected to a sealing cap (25).

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