Flue gas waste heat recovery heat exchanger

Abstract

The utility model discloses a flue gas waste heat recovery heat exchanger in the technical field of waste heat recovery, which comprises a mounting frame, a heat exchanger is mounted in the mounting frame, a gas inlet pipe is mounted on one side of the top of the heat exchanger, and a waste heat recovery box is mounted at the top of the mounting frame. The connecting pipe in the waste heat recovery box is connected to the air inlet pipe on the heat exchanger, and the smoke recovery pipe on the waste heat recovery box is connected to smoke, so that the smoke enters the waste heat recovery box and then is conveyed into the heat exchanger, and the effect of smoke waste heat recovery is achieved. The two sets of U-shaped seats are installed in the waste heat recovery box in a sliding mode through the guide blocks, and the primary filter plates and the advanced filter plates on the U-shaped seats are matched, so that smoke entering the waste heat recovery box is subjected to multi-layer smoke filtering treatment, and the situation that smoke dust in the smoke damages a pipeline and blocks the pipeline is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery, in particular to a flue gas waste heat recovery heat exchanger. Background Technique

[0002] A heat exchanger is a device used to transfer heat between two fluids and is widely used in industries, refrigeration, heating, ventilation, and air conditioning, etc. The main function of a heat exchanger is to improve energy efficiency and reduce energy consumption. To avoid waste of waste heat in factory flue gas, waste heat recovery treatment of flue gas is usually adopted. Currently, during the waste heat recovery process of a heat exchanger, due to a large amount of dust in the flue gas content, if no filtration treatment is taken, on the one hand, the dust is likely to adsorb on the inner wall of the pipeline, affecting the smoothness of the pipeline for transporting flue gas, and on the other hand, it is also likely to cause blockage or abrasion of the gas transmission pipeline or the internal pipeline of the heat exchanger. By taking filtration treatment during the waste heat recovery process of flue gas, however, when the amount of dust on the filter plate used for filtration is too large, it is relatively easy to cause the blockage of the mesh holes of the filter plate, seriously affecting the normal filtration effect of the filter plate and also affecting the smoothness of flue gas transportation. At the same time, it also requires relevant technical personnel to clean it irregularly, which is relatively troublesome and cumbersome, and also increases the workload of relevant technical personnel, thereby reducing the waste heat recovery efficiency and effect of the heat exchanger for flue gas.

[0003] Therefore, it is very necessary to develop a flue gas waste heat recovery heat exchanger. Content of the Utility Model

[0004] The purpose of the utility model is to provide a flue gas waste heat recovery heat exchanger to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A flue gas waste heat recovery heat exchanger, including a mounting frame, a heat exchanger is installed inside the mounting frame, an air inlet pipe is installed on one side of the top of the heat exchanger, and a waste heat recovery box is installed on the top of the mounting frame;

[0006] Guide grooves are respectively opened at the top and bottom inside the waste heat recovery box, a flue gas recovery pipe is installed on one outer wall of the waste heat recovery box, and U-shaped seats are respectively installed at the top and bottom on one side inside the waste heat recovery box.

[0007] Preferably, a mounting plate is installed on the other side inside the waste heat recovery box, a fan is installed inside the mounting plate, and an air inlet hood is installed on one outer wall of the mounting plate.

[0008] Preferably, a connecting pipe is installed on one outer wall of the air inlet hood, and one end of the connecting pipe is fixedly connected to the top end of the air inlet pipe.

[0009] Preferably, guide blocks are arranged on both sides of the surface of the U-shaped seat, the outer wall of the guide block is slidably connected to the inner wall of the guide groove, and a primary filter plate is installed between the opposite sides of the two U-shaped seats.

[0010] Preferably, connecting plates are installed above and below between the opposite sides of the two primary filter plates, a vibration motor is installed on one side of the surface of the connecting plate, and a U-shaped frame is installed inside the U-shaped seat.

[0011] Preferably, a guide post is installed on the other side of the surface of the connecting plate, and the outer wall of the guide post is slidably connected to the inside of the U-shaped frame.

[0012] Preferably, a limit ring is installed at one end of the guide post, a spring is arranged on the outer wall of the guide post, and a screw rod is installed on the outer wall of one side of the U-shaped seat.

[0013] Preferably, a high-grade filter plate is installed on one side of the outer wall of the screw rod, and the high-grade filter plate is slidably connected to the screw rod.

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

[0015] By connecting the connecting pipe in the waste heat recovery box to the intake pipe on the heat exchanger and connecting the flue gas recovery pipe on the waste heat recovery box to the flue gas, the flue gas enters the waste heat recovery box and is then transported to the heat exchanger for waste heat recovery of the flue gas. By installing the two U-shaped seats in the waste heat recovery box in a sliding manner through the guide blocks, and combining the primary filter plate and the high-grade filter plate on the U-shaped seat, the flue gas entering the waste heat recovery box is subjected to multi-layer flue gas filtration treatment, reducing the damage and blockage of the pipeline caused by the soot in the flue gas. At the same time, the primary filter plate is equipped with a spring and a vibration motor, so that during the filtration process, the soot on the primary filter plate can be vibrated and dropped, minimizing the situation where the soot adheres to the filter plate and affects the filtration effect, and also reducing the problem of frequent cleaning by relevant technicians, effectively improving the efficiency and effect of the waste heat recovery of the heat exchanger flue gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the front sectional view provided by the present utility model;

[0017] Figure 2 is the front view provided by the present utility model;

[0018] Figure 3 is provided by the present utility model Figure 1 the enlarged view of the structure at A in

[0019] Figure 4 is the partial structure three-dimensional schematic diagram provided by the present utility model.

[0020] In the figure: 1, mounting frame; 2, heat exchanger; 201, intake pipe; 3, waste heat recovery box; 301, guiding groove; 302, flue gas recovery pipe; 303, mounting plate; 304, fan; 305, air inlet hood; 306, connecting pipe; 4, U-shaped seat; 401, guiding block; 402, primary filter plate; 403, connecting plate; 404, vibration motor; 405, U-shaped frame; 406, guiding column; 407, limiting ring; 408, spring; 409, screw; 410, high-grade filter plate. Detailed implementation mode

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] The present invention provides the following technical solution: A flue gas waste heat recovery heat exchanger. Please refer to Figures 1-4 , which includes a mounting frame 1. A heat exchanger 2 is installed inside the mounting frame 1. An intake pipe 201 is installed on one side of the top of the heat exchanger 2. A waste heat recovery box 3 is installed on the top of the mounting frame 1. Guiding grooves 301 are opened at both the top end and the bottom end inside the waste heat recovery box 3. A flue gas recovery pipe 302 is installed on the outer wall of one side of the waste heat recovery box 3. A mounting plate 303 is installed on the other side inside the waste heat recovery box 3. A fan 304 is installed inside the mounting plate 303. An air inlet hood 305 is installed on the outer wall of one side of the mounting plate 303. A connecting pipe 306 is installed on the outer wall of one side of the air inlet hood 305. One end of the connecting pipe 306 is fixedly connected to the top end of the intake pipe 201. Install a fan 304 inside the waste heat recovery box 3 on the mounting frame 1, and connect the air inlet hood 305 on the mounting plate 303 to the intake pipe 201 on the heat exchanger 2 through the connecting pipe 306. Connect the flue gas through the flue gas recovery pipe 302 on the waste heat recovery box 3, so that the fan 304 sucks the flue gas into the waste heat recovery box 3 and then transports it into the heat exchanger 2 to achieve the effect of flue gas waste heat recovery;

[0023] A U-shaped seat 4 is installed at the top and bottom of one side of the interior of the waste heat recovery box 3, and guide blocks 401 are provided on both sides of the surface of the U-shaped seat 4. The outer wall of the guide block 401 is slidably connected to the inner wall of the guide groove 301. The two groups of U-shaped seats 4 are installed in the guide groove 301 on the waste heat recovery box 3 by the guide blocks 401 in a sliding manner, so that the U-shaped seat 4 can be pushed in or pulled out for installation or removal. A primary filter plate 402 is installed between the opposite sides of the two groups of U-shaped seats 4, and a connecting plate 403 is installed above and below the opposite sides of the two groups of primary filter plates 402. A vibration motor 404 is installed on one side of the surface of the connecting plate 403. A U-shaped frame 405 is installed inside the seat 4, and a guide column 406 is installed on the other side of the surface of the connecting plate 403. The outer wall of the guide column 406 is slidably connected to the inside of the U-shaped frame 405, and the two groups of primary filter plates 402 are connected and fixed by the two groups of connecting plates 403. The two groups of connecting plates 403 are slidably docked in the U-shaped frames 405 on the two groups of U-shaped seats 4 by the guide columns 406, so that the two groups of primary filter plates 402 can slide vertically up and down inside the U-shaped seat 4. A limit ring 407 is installed at one end of the guide column 406, and a spring 408 is provided on the outer wall of the guide column 406 to limit the guide column 406. A spring 408 is set on the outer wall, and a vibration motor 404 is installed on the connecting plate 403. According to the vibration effect of the spring 408, the primary filter plate 402 can be vibrated in conjunction with the vibration of the vibration motor 404. A screw 409 is installed on the outer wall of one side of the U-shaped seat 4, and a high-grade filter plate 410 is installed on the outer wall side of the screw 409. The high-grade filter plate 410 is slidably connected with the screw 409. The high-grade filter plate 410 is docked at the outer wall of the screw 409 on the two groups of U-shaped seats 4 in a sliding manner, and the fastening nut is locked to achieve the installation of the high-grade filter plate 410. The mesh holes on the primary filter plate 402 and a group of advanced filter plates 410 are set to be smaller from right to left, so that the flue gas entering the waste heat recovery box 3 is subjected to multi-layer flue gas filtration treatment, reducing the damage and blockage of the pipe caused by smoke dust in the smoke. At the same time, the primary filter plate 402 is equipped with a spring 408 and a vibration motor 404, so that during the filtering process, the smoke dust on the primary filter plate 402 can be vibrated off, and the smoke dust is avoided as much as possible from being adsorbed on the filter plate and affecting the filtering effect, and the problem of frequent cleaning by relevant technical personnel is also reduced. At the same time, the shaken-off smoke dust can fall into the U-shaped seat 4 below, which is convenient for unified cleaning.

[0024] Working principle: When using the present utility model, a fan 304 is installed inside the waste heat recovery box 3 on the mounting frame 1, and the air inlet hood 305 on the mounting plate 303 is connected to the air inlet pipe 201 on the heat exchanger 2 through a connecting pipe 306. The flue gas is introduced through the flue gas recovery pipe 302 on the waste heat recovery box 3, and the fan 304 sucks the flue gas into the waste heat recovery box 3 and then transports it into the heat exchanger 2 to achieve the effect of waste heat recovery of the flue gas. The two U-shaped seats 4 are slidably installed in the guide grooves 301 on the waste heat recovery box 3 through the guide blocks 401, so that the U-shaped seats 4 can be pushed in or pulled out for installation or disassembly. The two primary filter plates 402 are connected and fixed by two connecting plates 403, and the two connecting plates 403 are slidably butted in the U-shaped frames 405 on the two U-shaped seats 4 through the guide posts 406, so that the two primary filter plates 402 can slide vertically up and down inside the U-shaped seats 4. A spring 408 is sleeved on the outer wall of the guide post 406, and a vibration motor 404 is installed on the connecting plate 403. According to the certain vibration effect of the spring 408 and the cooperation of the vibration of the vibration motor 404, the primary filter plates 402 can be vibrated. The high-grade filter plate 410 is slidably butted at the outer wall of the screw rod 409 on the two U-shaped seats 4, and the fastening nut is tightened to install the high-grade filter plate 410. According to the meshes on the two primary filter plates 402 and one high-grade filter plate 410, they are arranged smaller from right to left in sequence, so that the flue gas entering the waste heat recovery box 3 is subjected to multi-layer flue gas filtration treatment, reducing the damage and blockage of the pipeline caused by the soot in the flue gas. At the same time, the primary filter plates 402 are equipped with springs 408 and vibration motors 404, so that during the filtration process, the soot on the primary filter plates 402 can be vibrated and dropped, avoiding the situation that the soot adheres to the filter plates and affects the filtration effect as much as possible, and also reducing the problem of frequent cleaning by relevant technicians. At the same time, the fallen soot can fall into the lower U-shaped seats 4 for convenient unified cleaning, effectively improving the efficiency and effectiveness of the waste heat recovery of the heat exchanger flue gas.

[0025] Although the present utility model has been described above with reference to the embodiments, various improvements can be made to it and components therein can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present utility model can be combined with each other in any way. The exhaustive description of these combinations is omitted in this specification only for the sake of saving space and resources. Therefore, the present utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A flue gas waste heat recovery heat exchanger, comprising a mounting frame (1), wherein a heat exchanger (2) is installed inside the mounting frame (1), and an intake pipe (201) is installed on one side of the top of the heat exchanger (2), characterized in that: A waste heat recovery box (3) is installed on the top of the mounting bracket (1); Guide grooves (301) are provided at both the top end and the bottom end inside the waste heat recovery box (3). A flue gas recovery pipe (302) is installed on one outer wall of the waste heat recovery box (3). U-shaped seats (4) are installed at both the top end and the bottom end on one side inside the waste heat recovery box (3).

2. The flue gas waste heat recovery heat exchanger according to claim 1, wherein: A mounting plate (303) is installed on the other side inside the waste heat recovery box (3). A fan (304) is installed inside the mounting plate (303). An air inlet hood (305) is installed on one outer wall of the mounting plate (303).

3. The flue gas waste heat recovery heat exchanger according to claim 2, characterized in that: A connecting pipe (306) is installed on one outer wall of the air inlet hood (305). One end of the connecting pipe (306) is fixedly connected to the top end of the air inlet pipe (201).

4. The flue gas waste heat recovery heat exchanger according to claim 1, characterized in that: Guide blocks (401) are provided on both sides of the surface of the U-shaped seat (4). The outer wall of the guide block (401) is slidably connected to the inner wall of the guide groove (301). A primary filter plate (402) is installed between the opposite sides of the two U-shaped seats (4).

5. The flue gas waste heat recovery heat exchanger according to claim 4, characterized in that: Connecting plates (403) are installed above and below between the opposite sides of the two primary filter plates (402). A vibration motor (404) is installed on one side of the surface of the connecting plate (403). A U-shaped frame (405) is installed inside the U-shaped seat (4).

6. The flue gas waste heat recovery heat exchanger according to claim 5, characterized in that: A guide post (406) is installed on the other side of the surface of the connecting plate (403). The outer wall of the guide post (406) is slidably connected to the inside of the U-shaped frame (405).

7. The flue gas waste heat recovery heat exchanger according to claim 6, wherein: A limit ring (407) is installed at one end of the guide post (406). A spring (408) is provided on the outer wall of the guide post (406). A screw rod (409) is installed on one outer wall of the U-shaped seat (4).

8. The flue gas waste heat recovery heat exchanger according to claim 7, wherein: A high-grade filter plate (410) is installed on one outer wall of the screw rod (409). The high-grade filter plate (410) is slidably connected to the screw rod (409).

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