Corrosion-resistant water vapor treatment device for condensation heat exchanger

Abstract

The utility model belongs to the technical field of condensation heat exchangers, and particularly relates to a condensation heat exchanger corrosion-resistant water vapor treatment device which comprises a condensation heat exchanger, a first connecting pipe is installed on a heat medium feeding pipe, a first filter box is installed on the first connecting pipe, a containing pipe is installed on the inner wall of the first filter box, and a second connecting pipe is installed on the containing pipe. A plurality of material passing grooves are formed in the outer wall of the placing pipe, a ceramic membrane is placed in the placing pipe, a fixing plate is fixedly installed on the inner wall of the first connecting pipe, a plurality of springs are installed on the fixing plate, and a moving plate is installed at the other ends of the springs. Meanwhile, a pressing block on a sealing plate does not press and fix the ceramic membrane any more, at the moment, under the action of a spring, the spring can push a moving plate to horizontally move, the moving plate pushes the ceramic membrane to slide out of a placing pipe, rapid disassembly of the ceramic membrane is achieved, and the structure can conveniently disassemble and assemble the filtering structure; and the convenience of dismounting the filtering structure is improved.

Description

Technical Field

[0001] This utility model relates to the field of condensing heat exchanger technology, specifically a corrosion-resistant water vapor treatment device for condensing heat exchangers. Background Technology

[0002] A condensing heat exchanger is a heat exchanger that recovers and utilizes the latent heat of vaporization of water vapor in flue gas. The water vapor in the flue gas introduced into the condensing heat exchanger may contain corrosive substances, so a corrosion-resistant water vapor treatment device is required to treat the water vapor in the flue gas.

[0003] Chinese patent application CN 109855437 A discloses a condensing heat exchanger, which includes a shell and a heat exchange unit disposed within the shell. The heat exchange unit is formed by multiple spiral coils of heat exchange tubes, with gaps between each coil. The inlet end of the heat exchange tubes is connected to a water inlet on the shell, and the outlet end is connected to a water outlet on the shell. A partition is disposed within the inner space enclosed by the heat exchange unit, dividing the inner space into an ignition zone and an exhaust zone. The ignition zone is connected to an air inlet on the shell, and the exhaust zone is connected to an exhaust outlet on the shell. The space between the outer side of the heat exchange unit and the inner wall of the shell is a heat transfer zone. Both the ignition zone and the exhaust zone are connected to the heat transfer zone through gaps on the heat exchange unit. The position of the partition within the inner space of the heat exchange unit is adjustable, allowing for adjustment of the volume ratio of the ignition zone to the exhaust zone. This condensing heat exchanger enables high-temperature flue gas to exchange heat twice with the heat exchange unit, improving the heat exchange efficiency between the high-temperature flue gas and the heat exchange unit, and ensuring full utilization of the heat in the high-temperature flue gas.

[0004] Existing corrosion-resistant water vapor treatment devices require periodic disassembly, cleaning, or replacement of the filter structure to ensure efficient operation during the filtration of superheated steam in the flue gas introduced into the condensing heat exchanger. However, the disassembly process is cumbersome and inconvenient. Therefore, a corrosion-resistant water vapor treatment device for condensing heat exchangers is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve the problems existing in the existing technology, this utility model proposes a corrosion-resistant water vapor treatment device for condensing heat exchangers.

[0006] The technical solution adopted by this utility model to solve its technical problem is a corrosion-resistant water vapor treatment device for a condensing heat exchanger, including a condensing heat exchanger, a heat medium inlet pipe installed on the condensing heat exchanger, a first connecting pipe installed on the heat medium inlet pipe, a first filter box installed on the first connecting pipe, a second connecting pipe installed on the side wall of the first filter box, a placement pipe installed on the inner wall of the first filter box, multiple material passage grooves opened on the outer wall of the placement pipe, a material inlet opened on the side wall of the first filter box, a ceramic membrane placed inside the placement pipe, a fixing plate fixedly installed on the inner wall of the first connecting pipe, multiple limiting rods fixedly installed on the fixing plate, multiple springs installed on the fixing plate, a movable plate installed on the other end of the springs, the springs being sleeved around the limiting rods, and the fixing plate and the movable plate having a ring structure. The inner wall of the feed inlet is threaded, and a sealing plate is threadedly fitted into the feed inlet. A pressure block and a knob are mounted on the sealing plate. Multiple connecting grooves are formed on the inner wall of the first connecting tube, and connecting blocks are slidably fitted into the connecting grooves. The connecting blocks are fixedly connected to the side wall of the moving plate. During the disassembly of the ceramic membrane, the sealing plate is rotated by turning the knob, and the sealing plate is unscrewed from the feed inlet. At the same time, the pressure block on the sealing plate no longer presses and fixes the ceramic membrane. At this time, under the action of the spring, the spring will push the moving plate to move horizontally, and the moving plate will push the ceramic membrane to slide out of the placement tube, realizing the rapid disassembly of the ceramic membrane. Afterwards, the ceramic membrane can be cleaned to remove contaminants from the surface of the ceramic membrane and maintain its high performance. This structure allows for convenient disassembly and installation of the filter structure, which is beneficial to improving the convenience of filter structure disassembly.

[0007] Preferably, the ceramic membrane has a tubular structure with multiple small holes inside. The condensing heat exchanger is equipped with a hot medium outlet pipe, a cold medium inlet pipe, and a cold medium outlet pipe. A second filter box is installed on the cold medium inlet pipe. The second filter box has the same internal structure as the first filter box. A filter element is placed inside the placement pipe of the second filter box. Flue gas enters the placement pipe through multiple feed channels and then passes through the ceramic membrane. The ceramic membrane has excellent acid and alkali resistance, can remain stable in highly corrosive environments, and can efficiently complete the purification task when treating acidic liquids in water vapor. This achieves efficient filtration of superheated steam in flue gas, preventing pollutants in water vapor from entering the condensing heat exchanger. This structure can efficiently treat corrosive pollutants in flue gas and improve the treatment effect of water vapor.

[0008] The advantages of this utility model are:

[0009] 1. This utility model achieves rapid disassembly of the ceramic membrane by rotating a knob during the disassembly process. The knob rotates the sealing plate, which is then unscrewed from the feed port. Simultaneously, the pressure block on the sealing plate no longer presses and fixes the ceramic membrane. At this time, under the action of a spring, the spring pushes the moving plate to move horizontally, and the moving plate pushes the ceramic membrane to slide out of the placement tube. Afterward, the ceramic membrane can be cleaned to remove contaminants from its surface and maintain its high performance. This structure allows for convenient disassembly and installation of the filter structure, which is beneficial to improving the ease of disassembly of the filter structure.

[0010] 2. This utility model allows flue gas to enter the placement pipe through multiple feed troughs, and then pass through a ceramic membrane. The ceramic membrane has excellent acid and alkali resistance, can remain stable in highly corrosive environments, and can efficiently complete the purification task when treating acidic liquids in water vapor. This achieves efficient filtration of superheated steam in flue gas, preventing pollutants in water vapor from entering the condenser heat exchanger. This structure can efficiently treat corrosive pollutants in flue gas and is beneficial to improving the treatment effect of water vapor. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a first-person perspective 3D structural diagram;

[0013] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the first filter box;

[0014] Figure 3 This is a schematic diagram of the three-dimensional structure of the ceramic membrane.

[0015] Figure 4 This is a schematic diagram of the three-dimensional structure of the spring.

[0016] Figure 5 This is a schematic diagram of the three-dimensional structure of a condensing heat exchanger.

[0017] In the diagram: 1. Condensing heat exchanger; 2. Hot medium feed pipe; 3. First connecting pipe; 4. First filter box; 5. Placement pipe; 6. Feed trough; 7. Feed inlet; 8. Sealing plate; 9. Knob; 10. Ceramic membrane; 11. Small hole; 12. Fixing plate; 13. Limiting rod; 14. Spring; 15. Moving plate; 16. Connecting groove; 17. Connecting block; 18. Second connecting pipe; 19. Hot medium discharge pipe; 20. Cold medium feed pipe; 21. Cold medium discharge pipe; 22. Second filter box; 23. Press block. Detailed Implementation

[0018] 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 scope of protection of the present utility model.

[0019] Please see Figure 1-5As shown, a corrosion-resistant water vapor treatment device for a condensing heat exchanger includes a condensing heat exchanger 1, a heat medium inlet pipe 2 installed on the condensing heat exchanger 1, a first connecting pipe 3 installed on the heat medium inlet pipe 2, a first filter box 4 installed on the first connecting pipe 3, a second connecting pipe 18 installed on the side wall of the first filter box 4, a placement pipe 5 installed on the inner wall of the first filter box 4, multiple material passage grooves 6 opened on the outer wall of the placement pipe 5, a material inlet 7 opened on the side wall of the first filter box 4, and a material placed inside the placement pipe 5. A ceramic membrane 10 has a fixed plate 12 fixedly installed on the inner wall of the first connecting pipe 3. Multiple limiting rods 13 are fixedly installed on the fixed plate 12, and multiple springs 14 are installed on the fixed plate 12. A movable plate 15 is installed at the other end of each spring 14, and the springs 14 are sleeved around the limiting rods 13. The fixed plate 12 and the movable plate 15 have an annular structure. A thread is provided on the inner wall of the feed inlet 7, and a sealing plate 8 is threaded into the feed inlet 7. A pressure block 23 is installed on the sealing plate 8, and a knob 9 is installed on the sealing plate 8. The first connecting pipe... Multiple connecting grooves 16 are provided on the inner wall of the 3. Connecting blocks 17 are slidably installed in the connecting grooves 16. The connecting blocks 17 are fixedly connected to the side wall of the moving plate 15. During operation, the existing corrosion-resistant water vapor treatment device needs to disassemble, clean or replace the filter structure regularly in order to ensure the efficient operation of the filter structure. However, the disassembly steps are cumbersome, resulting in poor convenience of disassembling the filter structure. During the disassembly of the ceramic membrane 10, the knob 9 is turned to drive the sealing plate 8 to rotate. The sealing plate 8 is unscrewed from the feed port 7. At the same time, the pressure block 23 on the sealing plate 8 no longer presses and fixes the ceramic membrane 10. At this time, under the action of the spring 14, the spring 14 will push the moving plate 15 to move horizontally. The moving plate 15 pushes the ceramic membrane 10 to slide out from the placement tube 5, realizing the quick disassembly of the ceramic membrane 10. After that, the ceramic membrane 10 is cleaned to remove the contaminants on the surface of the ceramic membrane 10 and maintain the high performance of the ceramic membrane 10.

[0020] After cleaning the ceramic membrane 10, place the ceramic membrane 10 into the placement tube 5 through the feed inlet 7. Then, screw the sealing plate 8 into the feed inlet 7. The pressure block 23 on the sealing plate 8 will push the ceramic membrane 10 into the placement tube 5. The ceramic membrane 10 will push the moving plate 15 to move horizontally. The moving plate 15 will press the spring 14 until the moving plate 15 contacts the limiting rod 13 and is blocked by the limiting rod 13, thus realizing the convenient installation of the ceramic membrane 10. Similarly, the filter element in the second filter box 22 can be easily replaced. This structure allows for convenient disassembly and installation of the filter structure, which is beneficial to improving the convenience of disassembly of the filter structure.

[0021] Please see Figure 2As shown, the ceramic membrane 10 has a tubular structure with multiple small holes 11 inside. The condensing heat exchanger 1 is equipped with a hot medium outlet pipe 19, a cold medium inlet pipe 20, and a cold medium outlet pipe 21. A second filter box 22 is installed on the cold medium inlet pipe 20. The internal structure of the second filter box 22 is the same as that of the first filter box 4. A filter element is placed inside the placement tube 5 of the second filter box 22. During operation, existing corrosion-resistant water vapor treatment devices struggle to remove contaminants from the water vapor during the treatment of superheated steam in the flue gas introduced into the condensing heat exchanger 1. The efficient cleaning of materials resulted in poor water vapor treatment effect of the device. By passing the flue gas into the first filter box 4 through the second connecting pipe 18, the flue gas enters the placement pipe 5 through multiple material passages 6, and then passes through the ceramic membrane 10. The ceramic membrane 10 has excellent acid and alkali resistance, can remain stable in a highly corrosive environment, and can efficiently complete the purification task when treating acidic liquids in water vapor, while maintaining stable performance and long service life. This achieves efficient filtration of superheated steam in the flue gas and prevents pollutants in the water vapor from entering the condensing heat exchanger 1.

[0022] Similarly, cold water is introduced into the second filter box 22, and then the filter element filters the condensate water to remove impurities, thus preventing impurities in the condensate water from entering the condensing heat exchanger 1.

[0023] The superheated steam and condensate in the flue gas exchange heat in the condensing heat exchanger 1. The superheated steam in the flue gas will condense into liquid water and release the latent heat of vaporization, thus realizing the recovery and utilization of heat energy in the flue gas. This structure can efficiently treat corrosive pollutants in the flue gas and is conducive to improving the treatment effect of water vapor.

[0024] Working principle: In the existing corrosion-resistant water vapor treatment device, during the treatment of superheated steam in the flue gas introduced into the condensing heat exchanger 1, the filter structure needs to be disassembled, cleaned, or replaced periodically to ensure efficient operation. However, the disassembly process is cumbersome, resulting in poor convenience of filter structure disassembly. During the disassembly of the ceramic membrane 10, by turning the knob 9, the sealing plate 8 is rotated, and the sealing plate 8 is unscrewed from the feed port 7. At the same time, the pressure block 23 on the sealing plate 8 no longer presses and fixes the ceramic membrane 10. At this time, under the action of the spring 14, the spring 14 will push the moving plate 15 to move horizontally. The moving plate 15 pushes the ceramic membrane 10 out of the placement tube. Sliding out 5 allows for quick disassembly of the ceramic membrane 10. Afterwards, the ceramic membrane 10 is cleaned to remove surface contaminants and maintain its high performance. Once cleaned, the ceramic membrane 10 is placed into the placement tube 5 through the inlet 7. Then, the sealing plate 8 is screwed into the inlet 7. The pressure block 23 on the sealing plate 8 pushes the ceramic membrane 10 into the placement tube 5, causing the ceramic membrane 10 to move horizontally along the moving plate 15. The moving plate 15 presses against the spring 14 until it contacts the limiting rod 13, where it is stopped, thus facilitating the installation of the ceramic membrane 10. Similarly, the filter element in the second filter box 22 can be easily installed. Quick replacement; this structure allows for convenient disassembly and installation of the filter structure, improving the ease of disassembly. Existing corrosion-resistant water vapor treatment devices struggle to efficiently remove pollutants from the water vapor during the treatment of superheated steam in the flue gas introduced into the condensing heat exchanger 1, resulting in poor water vapor treatment performance. By introducing flue gas into the first filter box 4 through the second connecting pipe 18, and then into the placement pipe 5 through multiple feed troughs 6, the flue gas passes through the ceramic membrane 10. The ceramic membrane 10 possesses excellent acid and alkali resistance, maintaining stability in highly corrosive environments and efficiently purifying acidic liquids in the water vapor. The system achieves efficient filtration of superheated steam in flue gas while maintaining stable performance and long service life, preventing pollutants in the steam from entering the condenser heat exchanger 1. Similarly, cold water is introduced into the second filter box 22, where the filter element filters impurities from the condensed water, preventing these impurities from entering the condenser heat exchanger 1. The superheated steam and condensed water in the flue gas exchange heat in the condenser heat exchanger 1, causing the superheated steam to condense into liquid water and release its latent heat of vaporization, thus recovering and utilizing the heat energy in the flue gas. This structure can efficiently treat corrosive pollutants in the flue gas and improve the treatment effect of water vapor.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A corrosion-resistant water vapor treatment device for a condensing heat exchanger, characterized in that: The system includes a condensing heat exchanger (1), on which a heat medium inlet pipe (2) is installed. A first connecting pipe (3) is installed on the heat medium inlet pipe (2). A first filter box (4) is installed on the first connecting pipe (3). A second connecting pipe (18) is installed on the side wall of the first filter box (4). A placement pipe (5) is installed on the inner wall of the first filter box (4). Multiple material passages (6) are provided on the outer wall of the placement pipe (5). A feed inlet (7) is provided. A ceramic membrane (10) is placed inside the placement tube (5). A fixing plate (12) is fixedly installed on the inner wall of the first connecting tube (3). Multiple limiting rods (13) are fixedly installed on the fixing plate (12). Multiple springs (14) are installed on the fixing plate (12). A moving plate (15) is installed on the other end of the spring (14). The spring (14) is sleeved around the limiting rod (13). The fixing plate (12) and the moving plate (15) are annular structures.

2. The corrosion-resistant water vapor treatment device for a condensing heat exchanger according to claim 1, characterized in that: The feed inlet (7) has a threaded opening on its inner wall. A sealing plate (8) is installed inside the feed inlet (7) through the thread. A pressure block (23) is installed on the sealing plate (8). A knob (9) is installed on the sealing plate (8).

3. The corrosion-resistant water vapor treatment device for a condensing heat exchanger according to claim 1, characterized in that: The first connecting pipe (3) has multiple connecting grooves (16) on its inner wall. A connecting block (17) is slidably assembled in the connecting groove (16). The connecting block (17) is fixedly connected to the side wall of the moving plate (15).

4. The corrosion-resistant water vapor treatment device for a condensing heat exchanger according to claim 1, characterized in that: The ceramic membrane (10) has a tubular structure and a plurality of small holes (11) are provided inside the ceramic membrane (10).

5. A corrosion-resistant water vapor treatment device for a condensing heat exchanger according to claim 1, characterized in that: The condensing heat exchanger (1) is equipped with a hot medium outlet pipe (19), a cold medium inlet pipe (20) and a cold medium outlet pipe (21).

6. A corrosion-resistant water vapor treatment device for a condensing heat exchanger according to claim 5, characterized in that: A second filter box (22) is installed on the cold medium feed pipe (20). The second filter box (22) has the same internal structure as the first filter box (4). A filter element is placed in the placement pipe (5) of the second filter box (22).

Images