Desulfurization waste liquid waste heat exchange device

Abstract

The utility model discloses a desulfurization waste liquid waste heat exchange device, which relates to the technical field of desulfurization waste liquid waste heat recovery, and comprises a pair of side plates, a plurality of hot water pipes and a cold water pipe, the pair of side plates is fixedly arranged at two ends of the plurality of hot water pipes, and two adjacent hot water pipes are connected through a connecting pipe. The multiple hot water pipes form an S-shaped hot water circulation channel through the connecting pipes, S-shaped cold water pipes are fixedly arranged in the multiple hot water pipes, a first rotating sleeve is rotationally arranged on the portion, located in each hot water pipe, of the cold water pipe, a plurality of scrapers are fixedly arranged on the two sides of each first rotating sleeve, and each scraper makes contact with the outer surface of the corresponding cold water pipe located in the corresponding hot water pipe. When hot water flows in the hot water pipe, the rotating sleeve I can be rotated under the action of the paddle, the scraping plate is driven by the rotating sleeve I to circumferentially rotate on the cold water pipe, the outer surface of the cold water pipe is cleaned, the scraping plate can be conveniently taken out through the plugging cover and the elbow which are detachably connected, and the scraping plate can be conveniently maintained or replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery of desulfurization waste liquid, in particular to a waste heat heat exchange device for desulfurization waste liquid. Background Art

[0002] Desulfurization refers to the process of removing sulfur from fuel before combustion and before flue gas emissions. It is one of the important technical measures to prevent and control air pollution. A large amount of waste liquid will be generated during desulfurization. These waste liquids usually carry heat. In order to reduce energy waste, the waste heat in the waste liquid needs to be recovered. Since these waste liquids contain a large amount of impurities, these impurities will adhere to the outer wall of the heat exchange tube, resulting in reduced heat exchange efficiency. Traditional heat exchange devices cannot automatically clean up impurities, and the use effect is poor. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a desulfurization waste liquid waste heat heat exchange device to solve the problems raised in the above background technology.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a desulfurization waste liquid waste heat heat exchange device, including a pair of side plates, multiple hot water pipes, and cold water pipes. The pair of side plates are fixedly installed at both ends of the multiple hot water pipes. Two adjacent hot water pipes are connected by connecting pipes. The multiple hot water pipes form an S-shaped hot water circulation channel through the connecting pipe. The hot water pipes located at the top and the bottom are respectively connected to a hot water inlet and a hot water outlet. S-shaped cold water pipes are fixedly arranged in the multiple hot water pipes. A rotating sleeve is rotatably arranged on the cold water pipe located in each of the hot water pipes. Multiple scrapers are fixedly arranged on both sides of the rotating sleeve, and each of the scrapers contacts the outer surface of the cold water pipe located in the hot water pipe.

[0005] Preferably, a plurality of blades are fixedly provided on an outer surface of the rotating sleeve.

[0006] Preferably, a rotating sleeve 2 is rotatably provided on the cold water pipe located in each of the hot water pipes, and one end of the plurality of scrapers is fixedly connected to the rotating sleeve 2.

[0007] Preferably, a sealing cap is detachably connected inside one of the pair of side panels and located at one end of each of the hot water pipes, and an elbow is used to connect the turning points of the cold water pipes on one side close to the sealing cap, and the elbow is a detachable connection.

[0008] Beneficial Effects

[0009] The utility model provides a waste heat heat exchange device for desulfurization waste liquid, which has the following beneficial effects: when hot water flows in the hot water pipe, the rotating sleeve can be rotated under the action of the paddle, and the scraper is driven by the rotating sleeve to rotate circumferentially on the cold water pipe, so as to clean the outer surface of the cold water pipe; the scraper can be easily taken out by disassembling the connected sealing cover and elbow, which is convenient for maintenance or replacement of the scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is the main internal structure diagram of the utility model;

[0011] Figure 2 for Figure 1 Sectional view of AA.

[0012] In the figure: 1. side panel; 2. hot water pipe; 3. connecting pipe; 4. hot water inlet; 5. hot water outlet; 6. cold water pipe; 7. cold water inlet; 8. cold water outlet; 9. rotating sleeve 1; 10. scraper; 11. paddle; 12. sealing cover; 13. elbow; 14. rotating sleeve 2. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0014] See also Figure 1-2 The utility model provides a technical solution: a desulfurization waste liquid waste heat heat exchange device, comprising a pair of side plates 1, a plurality of hot water pipes 2, and a cold water pipe 6. The pair of side plates 1 are fixedly installed at both ends of the plurality of hot water pipes 2. Two adjacent hot water pipes 2 are connected by connecting pipes 3. The plurality of hot water pipes 2 form an S-shaped hot water circulation channel through the connecting pipes 3. The hot water pipes 2 located at the top and the bottom are respectively connected with a hot water inlet 4 and a hot water outlet 5. An S-shaped cold water pipe 6 is fixedly arranged in the plurality of hot water pipes 2. A rotating sleeve 9 is rotatably arranged on the cold water pipe 6 located in each hot water pipe 2. A plurality of scrapers 10 are fixedly arranged on both sides of the rotating sleeve 9. Each scraper 10 contacts the outer surface of the cold water pipe 6 located in the hot water pipe 2. The scraper 10 can be moved circumferentially on the outer surface of the cold water pipe 6 by rotating the rotating sleeve 9, thereby cleaning impurities attached to the outer surface of the cold water pipe 6.

[0015] As an embodiment of the utility model, a plurality of paddles 11 are fixedly provided on the outer surface of the rotating sleeve 9 , and when water flows in the hot water pipe 2 , the paddles 11 can drive the rotating sleeve 9 to rotate.

[0016] As an embodiment of the utility model, a second rotating sleeve 14 is rotatably provided on the cold water pipe 6 located in each hot water pipe 2, and one end of a plurality of scrapers 10 is fixedly connected to the second rotating sleeve 14 to improve the strength of the scrapers 10.

[0017] As an embodiment of the utility model, a plugging cover 12 is removably connected inside one of the pair of side panels 1 and located at one end of each hot water pipe 2, and an elbow 13 is used to connect the turning part of the cold water pipe 6 close to the plugging cover 12. The elbow 13 is a detachable connection. The scraper 10 can be taken out by removing the elbow 13 and the plugging cover 12 for easy replacement.

[0018] The working principle and use process of the utility model are as follows: when in use, waste liquid with residual heat enters the hot water pipe 2 through the hot water inlet 4, and cold water enters the cold water pipe 6 through the cold water inlet 7. The cold water pipe 6 is heated by the hot water in the hot water pipe 2, and finally the hot water flows out through the hot water outlet 5; when the hot water flows in the hot water pipe 2, the rotating sleeve 9 can be rotated under the action of the paddle 11, and the scraper 10 is driven by the rotating sleeve 9 to rotate circumferentially on the cold water pipe 6, so as to clean the outer surface of the cold water pipe 6; the scraper 10 can be easily removed by disassembling the connected sealing cover 12 and the elbow 13, so as to facilitate the maintenance or replacement of the scraper 10.

[0019] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A desulfurization waste liquid waste heat exchange device, characterized in that: The invention comprises a pair of side plates (1), a plurality of hot water pipes (2), and a cold water pipe (6). The pair of side plates (1) are fixedly mounted at both ends of the plurality of hot water pipes (2). Two adjacent hot water pipes (2) are connected by connecting pipes (3). The connecting pipes (3) enable the plurality of hot water pipes (2) to form an S-shaped hot water circulation channel. The hot water pipes (2) located at the top and the bottom are respectively connected to a hot water inlet (4) and a hot water outlet (5). An S-shaped cold water pipe (6) is fixedly arranged in the plurality of hot water pipes (2). A rotating sleeve (9) is rotatably arranged on the cold water pipe (6) in each of the hot water pipes (2). A plurality of scrapers (10) are fixedly arranged on both sides of the rotating sleeve (9). Each of the scrapers (10) contacts the outer surface of the cold water pipe (6) located in the hot water pipe (2).

2. A desulfurization waste liquid waste heat exchange device according to claim 1, characterized in that: A plurality of blades (11) are fixedly arranged on the outer surface of the rotating sleeve (9).

3. A desulfurization waste liquid waste heat exchange device according to claim 1, characterized in that: A second rotating sleeve (14) is also rotatably provided on the cold water pipe (6) located in each of the hot water pipes (2), and one end of a plurality of the scrapers (10) is fixedly connected to the second rotating sleeve (14).

4. A desulfurization waste liquid waste heat exchange device according to claim 1, characterized in that: A sealing cover (12) is detachably connected inside one of the pair of side panels (1) and located at one end of each of the hot water pipes (2), and the cold water pipes (6) are connected at the turning point on the side close to the sealing cover (12) using an elbow (13), and the elbow (13) is a detachable connection.

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