Heat supply steam condensate water heat recovery device for paper processing

Abstract

The utility model discloses a heat supply steam condensate water heat recovery device for paper processing, and relates to the technical field of paper processing. The heat supply steam condensate water heat recovery device for paper processing comprises a heating box used for heating paper; the water storage tank is fixedly arranged at the bottom end of the heating box; and the backflow box is fixedly arranged on the inner bottom surface of the heating box and extends into the water storage box. According to the heat supply steam condensate water heat recovery device for paper processing, the heat recovery pipe is arranged in the water storage tank in an S shape, condensed steam enters the heat recovery pipe under the action of the converging groove, heat is conducted to water in the water storage tank in the flowing process of condensate water, the stored water is preliminarily heated, and the heat recovery efficiency is improved; the conversion efficiency of the stored water in the steam generator is higher, the production cost and energy consumption of enterprises are reduced, and meanwhile the steam output effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of paper processing technology, specifically to a heat recovery device for condensate water from heating steam used in paper processing. Background Technology

[0002] In paper processing, large amounts of steam are used for drying, calendering, and other treatments to meet quality requirements. After heating the paper, the steam condenses into water, releasing a significant amount of heat. Currently, most paper processing companies handle this steam condensate in a rather simple way, often discharging it directly. This not only wastes water resources but also wastes a large amount of heat energy, increasing production costs and energy consumption.

[0003] Currently, most paper processing companies treat steam condensate in a relatively simple way, often discharging it directly. This not only wastes water resources but also causes a large amount of heat energy to be wasted, increasing the company's production costs and energy consumption. Utility Model Content

[0004] The purpose of this invention is to provide a heat recovery device for condensate water from heating steam used in paper processing, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat recovery device for steam condensate in paper processing, comprising: a heating box for heating paper; a water storage tank fixedly disposed at the bottom of the heating box; a return box fixedly disposed inside the bottom surface of the heating box, the return box extending into the water storage tank; a heat recovery pipe fixedly disposed inside the water storage tank, one end of the heat recovery pipe being fixedly connected to the bottom of the return box, the heat recovery pipe being S-shaped, the heat recovery pipe being inclined with one end of the return box as the highest point and the other end as the lowest point; a circulating fan rotatably disposed inside the water storage tank, the circulating fan being configured to drive the water inside the water storage tank to flow when rotating; and a drive motor fixedly disposed on one side of the water storage tank, the output end of the drive motor being driven by one end of the circulating fan.

[0006] Preferably, it further includes: a filter box inserted inside the return box; a sliding groove symmetrically formed on the filter box; a fixing block slidably disposed inside the sliding groove; and a fixing slot symmetrically formed inside the return box. When one end of the fixing block is disposed inside the fixing slot, the filter box is restricted from moving inside the return box.

[0007] Preferably, it further includes: a compression spring, fixedly disposed inside the slide groove, the other end of the compression spring being fixedly disposed on the surface of the fixed block, the compression spring deforming when the fixed block is moved; and a toggle plate, fixedly disposed on the fixed block, the toggle plate being slidably disposed with respect to the surface of the filter box.

[0008] Preferably, it further includes: a limiting block, fixedly disposed on a fixed block; and a limiting groove, formed inside the sliding groove, wherein the outer surface of the limiting block is slidably disposed with respect to the inside of the sliding groove.

[0009] Preferably, it further includes: a positioning ring, fixedly disposed on the filter box; and a positioning groove, formed on the return box, wherein the outer surface of the positioning ring is inserted into the positioning groove.

[0010] Preferably, it further includes: a steam generator, fixedly mounted on the heating box; a water pump, fixedly mounted on the side of the heating box, with both ends of the water pump fixedly connected to the inside of the water tank and the input end of the steam generator, respectively; and a gas distribution pipe, fixedly mounted inside the heating box, with the gas distribution pipe fixedly connected to the output end of the steam generator.

[0011] Preferably, it further includes: a plurality of support seats, fixedly installed inside the water storage tank, the top of the support seats abutting against the surface of the heat recovery pipe; a collection trough, fixedly installed on the bottom surface inside the heating box; and a water supply pipe, fixedly connected to one side of the water storage tank.

[0012] This utility model provides a heat recovery device for condensate water from heating steam used in paper processing, which has the following beneficial effects:

[0013] (1) This utility model sets the heat recovery pipe in an S-shape inside the water storage tank. The condensed steam enters the heat recovery pipe under the action of the collection tank. During the flow of condensate water, the heat is transferred to the water in the water storage tank to preheat the stored water. This makes the conversion efficiency of the stored water in the steam generator faster, reduces the production cost and energy consumption of enterprises, and improves the steam output effect.

[0014] (2) By setting up a filter box, this utility model can filter impurities in condensate. Furthermore, by pushing the toggle plate to move the fixing block, the filter box can be quickly released from its restriction, which improves the disassembly efficiency of the filter box and the cleaning efficiency of the filter box. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall internal structure of this utility model;

[0017] Figure 3 This is an exploded view of the internal structure of the water tank in this practical application.

[0018] Figure 4 This is an exploded view of the structure between the reflux box and the filter box in this utility model.

[0019] In the diagram: 1. Heating box; 2. Water tank; 3. Return box; 4. Heat recovery pipe; 5. Support base; 6. Filter box; 7. Slide groove; 8. Fixing block; 9. Actuating plate; 10. Compression spring; 11. Limiting block; 12. Limiting groove; 13. Fixing groove; 14. Positioning ring; 15. Positioning groove; 16. Water pump; 17. Steam generator; 18. Gas distribution pipe; 19. Gathering groove; 20. Circulating fan; 21. Drive motor; 22. Water supply pipe. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] This utility model provides a technical solution: Referring to 1-4, in this embodiment, a heat recovery device for condensate water from heating steam used in paper processing includes: a heating box 1 for heating paper; a water storage tank 2 fixedly disposed at the lower end of the heating box 1; a return box 3 fixedly disposed inside the lower surface of the heating box 1, extending into the water storage tank 2; a heat recovery pipe 4 fixedly disposed inside the water storage tank 2, one end of the heat recovery pipe 4 being fixedly connected to the bottom end of the return box 3, the heat recovery pipe 4 being S-shaped, and the heat recovery pipe 4 being inclined with one end of the return box 3 as the highest point and the other end as the lowest point; a circulating fan 20 rotatably disposed inside the water storage tank 2, the circulating fan 20 being configured to drive the water inside the water storage tank 2 to flow when rotating; and a drive motor 21 fixedly disposed on one side of the water storage tank 2. The output end is driven by the circulating fan 20. Condensate enters the heat recovery pipe 4 through the collecting tank 19 and the return box 3. The S-shaped structure of the heat recovery pipe 4 increases the contact area and time between the condensate and the water in the storage tank 2, improving the heat exchange efficiency. The circulating fan 20 in the storage tank 2 rotates at high speed, causing strong convection of the water, further enhancing the heat exchange. After heat exchange, the water temperature in the storage tank 2 rises from 25°C to about 70°C. A temperature sensor can be installed inside the storage tank 2. The temperature sensor can be installed at the outlet of the storage tank 2 and the heat recovery pipe 4 to monitor the water temperature and condensate temperature in real time, so as to facilitate the control of the speed of the drive motor 21. The use of this structure can reduce the energy consumption of the steam generator 17 by about 35% compared with the traditional system, saving about 20m³ of natural gas per hour.

[0022] It also includes: a filter box 6, inserted inside the return box 3; a sliding groove 7, symmetrically opened on the filter box 6; a fixing block 8, slidably set inside the sliding groove 7; and a fixing groove 13, symmetrically opened inside the return box 3. When one end of the fixing block 8 is set inside the fixing groove 13, the filter box 6 is restricted inside the return box 3. By setting the sliding groove 7, the fixing block 8 can be guided and limited. By setting the fixing block 8, the filter box 6 can be fixed by cooperating with the fixing groove 13.

[0023] It also includes: a pressure spring 10, which is fixedly installed inside the slide groove 7, with the other end of the pressure spring 10 fixedly installed on the surface of the fixing block 8. When the fixing block 8 is moved, the pressure spring 10 deforms; and a toggle plate 9, which is fixedly installed on the fixing block 8 and slides on the surface of the filter box 6. By setting the pressure spring 10, a continuous force can be applied to the fixing block 8 to improve the fixing effect. By setting the toggle plate 9, the fixing block 8 can be adjusted and the pressure spring 10 can be limited.

[0024] It also includes: a limiting block 11, which is fixedly set on the fixing block 8; and a limiting groove 12, which is opened inside the sliding groove 7. The outer surface of the limiting block 11 is slidably set with the inside of the sliding groove 7, which can further improve the limiting effect of the fixing block 8 and enable it to accurately enter the inside of the fixing groove 13.

[0025] It also includes: a positioning ring 14, which is fixedly installed on the filter box 6; and a positioning groove 15, which is opened on the return box 3. The outer surface of the positioning ring 14 is inserted into the positioning groove 15, which can limit the position of the filter box 6.

[0026] It also includes: a steam generator 17, which is fixedly installed on the heating box 1; a water pump 16, which is fixedly installed on the side of the heating box 1, with its two ends respectively connected to the inside of the water tank 2 and the input end of the steam generator 17; and a gas distribution pipe 18, which is fixedly installed inside the heating box 1 and is fixedly connected to the output end of the steam generator 17, so as to achieve the heating effect on the paper.

[0027] It also includes: several support bases 5, which are fixedly installed inside the water tank 2, with the top of the support base 5 abutting against the surface of the heat recovery pipe 4; a collection trough 19, which is fixedly installed on the bottom surface inside the heating box 1; and a water supply pipe 22, which is fixedly connected to one side of the water tank 2. By setting the support bases 5, the heat recovery pipe 4 can be supported, thereby improving its stability.

[0028] This utility model provides a heat recovery device for condensate water from heating steam used in paper processing. The specific working principle is as follows:

[0029] During paper processing, water pump 16 draws water from water tank 2 into steam generator 17. The generated steam eventually enters the heating chamber 1 through steam distribution pipe 18 to heat the paper. After releasing its heat, the treated steam generates condensate. The condensate enters the heat recovery pipe 4 through collection tank 19. During its entry into the heat recovery pipe 4, filter box 6 filters impurities from the condensate. As the condensate flows, it transfers heat to the water in water tank 2, providing initial heating. During the heating process, drive motor 21 drives circulation fan 20 to rotate. The rotating circulation fan 20 agitates the water in water tank 2, ensuring all water comes into contact with the surface of heat recovery pipe 4, resulting in more even heating of the stored water. The condensate is collected after being discharged from heat recovery pipe 4. When it is necessary to clean filter box 6, the operator opens heating chamber 1 and then pushes toggle plate 9 to move fixing block 8, quickly releasing filter box 6. Filter box 6 can then be pulled out for cleaning.

[0030] 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 heat recovery device for steam condensate in paper processing, characterized in that: include: Heating box (1) is used to heat the paper; A water storage tank (2) is fixedly installed at the bottom of the heating box (1); The reflux box (3) is fixedly installed on the bottom surface inside the heating box (1), and the reflux box (3) extends into the water storage tank (2); The heat recovery pipe (4) is fixedly installed inside the water tank (2). One end of the heat recovery pipe (4) is fixedly connected to the bottom end of the return box (3). The heat recovery pipe (4) is arranged in an S-shape. The heat recovery pipe (4) is inclined with one end of the return box (3) as the highest point and the other end as the lowest point. A circulation fan (20) is rotatably installed inside a water tank (2). The circulation fan (20) is configured to drive the water inside the water tank (2) to flow when it rotates. The drive motor (21) is fixedly installed on one side of the water tank (2), and the output end of the drive motor (21) is driven at one end of the circulation fan (20).

2. The heat recovery device for steam condensate in paper processing according to claim 1, characterized in that: Also includes: The filter box (6) is inserted inside the return box (3); The chute (7) is symmetrically opened on the filter box (6); The fixed block (8) is slidably disposed inside the slide groove (7); The fixing groove (13) is symmetrically opened inside the return box (3). When one end of the fixing block (8) is set inside the fixing groove (13), the filter box (6) is restricted inside the return box (3).

3. The heat recovery device for steam condensate in paper processing according to claim 2, characterized in that: Also includes: A compression spring (10) is fixedly installed inside the slide groove (7). The other end of the compression spring (10) is fixedly installed on the surface of the fixing block (8). When the fixing block (8) is moved, the compression spring (10) deforms. A toggle plate (9) is fixedly mounted on a fixed block (8), and the toggle plate (9) is slidably mounted on the surface of the filter box (6).

4. A heat recovery device for steam condensate in paper processing according to claim 2, characterized in that: Also includes: The limiting block (11) is fixedly mounted on the fixing block (8); The limiting groove (12) is opened inside the sliding groove (7), and the outer surface of the limiting block (11) is slidably disposed with respect to the inside of the sliding groove (7).

5. A heat recovery device for steam condensate in paper processing according to claim 2, characterized in that: Also includes: The positioning ring (14) is fixedly installed on the filter box (6); A positioning groove (15) is provided on the return box (3), and the outer surface of the positioning ring (14) is inserted into the positioning groove (15).

6. The heat recovery device for steam condensate in paper processing according to claim 1, characterized in that: Also includes: A steam generator (17) is fixedly mounted on a heating box (1); A water pump (16) is fixedly installed on the side of the heating box (1), and the two ends of the water pump (16) are fixedly connected to the inside of the water tank (2) and the input end of the steam generator (17); The gas distribution pipe (18) is fixedly installed inside the heating box (1), and the gas distribution pipe (18) is fixedly connected to the output end of the steam generator (17).

7. A heat recovery device for steam condensate in paper processing according to claim 1, characterized in that: Also includes: Several support seats (5) are fixedly installed inside the water tank (2), and the top of the support seat (5) abuts against the surface of the heat recovery pipe (4); The collection trough (19) is fixedly installed on the bottom surface inside the heating box (1); Water supply pipe (22) is fixedly connected to one side of water storage tank (2).

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