Spraying heat exchanger

Abstract

The utility model belongs to the field of spraying heat exchangers, and discloses a spraying heat exchanger which comprises a main body device used for spraying heat exchange, and two moving devices used for driving the main body device to move back and forth in a reciprocating mode are symmetrically arranged on the two sides in the main body device. The cleaning device is installed on the moving device and used for cleaning and scraping scale after the pipeline is clamped. The cleaning device comprises a mounting frame, an electric push rod is arranged on one side of the mounting frame, two limiting rods are symmetrically arranged on the upper side and the lower side of the electric push rod, a rolling brush is rotationally mounted on the rear side in the mounting frame, a rotating motor is mounted on the rolling brush, and a fixing plate is arranged in front of the rolling brush. Seven scraping assemblies are evenly arranged on the fixing plate. According to the spraying heat exchanger, due to the fact that scale is scraped through reciprocating movement, the scale which is tightly attached to the surface of the heat exchange tube is peeled off through the scraping plate, and the cleaning effect is improved; and through arrangement of cleaning on the two sides, the cleaning effect is further improved.

Description

Technical Field

[0001] This utility model belongs to the field of spray heat exchangers, and in particular relates to a spray heat exchanger. Background Technology

[0002] A spray heat exchanger, also known as a spray cooler, is a type of tubular heat exchanger. The spray heat exchanger uses nozzles to evenly spray cooling water onto the outer wall of the heat exchange tubes, forming a highly turbulent liquid film. This liquid film can effectively absorb the heat of the hot fluid inside the tubes and carry the heat away through evaporation, convection, and other means, thereby achieving heat exchange.

[0003] Comparing with Chinese Patent No. CN218723314U, a spray-type heat exchanger for a heat pump is disclosed, including a heat exchange box, a fixed frame, heat exchange tubes, a vertical spray mechanism, a spray water filtration mechanism, and a scale cleaning mechanism. The fixed frame is symmetrically fixed inside the heat exchange box, with two sets of fixed frames arranged symmetrically at the front and back. The heat exchange tubes are mounted on the curved plates of the fixed frames, and the spray tubes are located between the heat exchange tubes. A water supply pipe is fixedly installed in the middle of the top of the heat exchange box, and a pressure pump is arranged and fixedly installed below the water supply pipe. The spray tubes are also fixedly installed below the pressure pump, and spray nozzles are arranged in front and back on the spray tubes. A spray water filtration mechanism is provided on one side outside the heat exchange box, and the scale cleaning mechanism is symmetrically arranged at the front and back inside the heat exchange box.

[0004] The aforementioned patent uses a reciprocating brushing mechanism to clean scale from the surface of the heat exchange tubes, but it cannot remove tightly adhered scale, resulting in poor cleaning performance. Therefore, a new device needs to be designed. Utility Model Content

[0005] The purpose of this invention is to provide a spray heat exchanger to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A spray heat exchanger includes a main body for spray heat exchange, two moving devices symmetrically arranged on both sides of the main body for driving back and forth reciprocating movement, and a cleaning device installed on the moving devices for clamping the pipe and washing and scraping off scale.

[0008] The cleaning device includes a mounting frame, an electric push rod on one side of the mounting frame, two limiting rods symmetrically arranged on the upper and lower sides of the electric push rod, a roller brush rotatably mounted inside the rear side of the mounting frame, a rotating motor mounted on the roller brush, a fixing plate in front of the roller brush, and seven scraping components evenly arranged on the fixing plate.

[0009] Furthermore: the main device includes a heat exchange box, a water collection tank is provided at the bottom of the heat exchange box, a drain pipe is provided in front of the water collection tank, a heat exchange tube is installed inside the heat exchange box, and a spray assembly is provided above the heat exchange tube.

[0010] Furthermore: the mobile device includes a carriage on which a slide plate is slidably mounted, and a drive assembly is provided on the top of the slide plate.

[0011] Furthermore, the scraping assembly includes a clamping ring, and two scraping rings are symmetrically arranged on the front and rear sides of the clamping ring. The end of the scraping ring away from the clamping ring is tapered.

[0012] Furthermore: the spray assembly includes a spray pipe, and ten spray heads are evenly installed below the spray pipe.

[0013] Furthermore, the drive assembly includes a linear guide rail on which a linear motor is mounted.

[0014] Compared with existing technologies, the beneficial effects are:

[0015] 1. By using a reciprocating scraping mechanism to remove scale, the scraper peels off the tightly adhered scale from the surface of the heat exchange tubes, thus improving the cleaning effect;

[0016] 2. The cleaning effect is further improved by setting up cleaning on both sides;

[0017] 3. The pipe cleaning device is designed to clamp the pipes by relative motion. When cleaning is not required, the cleaning device can be moved to the front to avoid affecting heat exchange. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a spray heat exchanger according to the present invention;

[0019] Figure 2 This is a schematic diagram of the main device of the spray heat exchanger described in this utility model;

[0020] Figure 3 This is a right view of the moving device of the spray heat exchanger described in this utility model;

[0021] Figure 4 This is a schematic diagram of a cleaning device for a spray heat exchanger as described in this utility model.

[0022] In the attached diagram, the following are the reference numerals: 101, heat exchange box; 102, water collection tank; 103, drain pipe; 104, heat exchange pipe; 105, spray pipe; 106, nozzle; 201, slide; 202, slide plate; 203, linear motor; 204, linear guide rail; 301, mounting bracket; 302, electric push rod; 303, limit rod; 304, roller brush; 305, rotating motor; 306, fixing plate; 307, clamping ring; 308, scraper ring. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-4 A spray heat exchanger includes a main body for spray heat exchange, two moving devices symmetrically arranged on both sides of the main body for driving back and forth reciprocating movement, and a cleaning device installed on the moving devices for clamping the pipe and washing and scraping off scale.

[0025] In this embodiment: the main device includes a heat exchange box 101, a water collection tank 102 is provided at the bottom of the heat exchange box 101, a drain pipe 103 is provided in front of the water collection tank 102, a heat exchange tube 104 is installed inside the heat exchange box 101, a spray assembly is provided above the heat exchange tube 104, the spray assembly includes a spray pipe 105, ten nozzles 106 are evenly installed below the spray pipe 105, hot fluid is introduced into the heat exchange tube 104 from the top, and then water is pumped into the spray pipe 105 and sprayed downward from the nozzles 106 to spray the heat exchange tube 104, heat exchange takes place in the heat exchange box 101, and the sprayed water falls into the water collection tank 102 for collection and is discharged through the drain pipe 103;

[0026] In this embodiment: the moving device includes a slide 201, a slide plate 202 is slidably mounted on the slide 201, a driving component is provided on the top of the slide plate 202, the driving component includes a linear guide rail 204, a linear motor 203 is mounted on the linear guide rail 204, the linear motor 203 drives the cleaning device to move back and forth along the linear guide rail 204 under the support of the slide 201 through the slide plate 202, and cleans the scale;

[0027] In this embodiment: the cleaning device includes a mounting frame 301, an electric push rod 302 is provided on one side of the mounting frame 301, two limiting rods 303 are symmetrically arranged on the upper and lower sides of the electric push rod 302, a roller brush 304 is rotatably mounted on the rear side of the mounting frame 301, a rotating motor 305 is mounted on the roller brush 304, a fixing plate 306 is provided in front of the roller brush 304, seven scraping components are evenly arranged on the fixing plate 306, each scraping component includes a clamping ring 307, two scraping rings 308 are symmetrically arranged on the front and rear sides of the clamping ring 307, and the scraping rings 308 are far away from the clamping ring 307. One end is tapered, which causes two electric push rods 302 to push two mounting brackets 301 to move relative to each other along the limiting rod 303. This causes the clamping rings 307 on the two fixing plates 306 to clamp the straight tube of the heat exchange tube 104 from both sides, and causes the roller brush 304 to stick to the heat exchange tube 104. Then, the above steps are repeated so that the mounting brackets 301 drive the clamping rings 307 to move along the surface of the heat exchange tube 104 through the fixing plate 306, so that the scraper ring 308 scrapes off the scale on the surface of the heat exchange tube 104. At the same time, the motor 305 drives the roller brush 304 to rotate, which improves the cleaning effect on the heat exchange tube 104.

[0028] Working principle: During use, the linear motor 203 drives the cleaning device via the slide plate 202, moving it forward along the linear guide rail 204 under the support of the slide 201. This moves the device to the front of the heat exchange box 101, avoiding interference with the heat exchange spray. Hot fluid is then introduced into the heat exchange tube 104 from the top, and water is pumped into the spray pipe 105 and sprayed downwards from the nozzle 106 to spray the heat exchange tube 104. Heat exchange occurs within the heat exchange box 101, and the sprayed water falls into the collection tank 102 for collection and is discharged through the drain pipe 103. After prolonged use, the linear motor 203 drives the mounting bracket 301 via the slide plate 202 to move along the slide 201. Supported by 1, the device moves backward along the linear guide rail 204, moving the clamping ring 307 to the straight section of the heat exchange tube 104. Then, the two electric push rods 302 push the two mounting brackets 301 to move relative to each other along the limiting rod 303, causing the clamping rings 307 on the two fixing plates 306 to clamp the straight section of the heat exchange tube 104 from both sides, and causing the roller brush 304 to adhere to the heat exchange tube 104. Then, the above steps are repeated so that the mounting brackets 301 drive the clamping rings 307 to move along the surface of the heat exchange tube 104 through the fixing plate 306, so that the scraper ring 308 scrapes off the scale on the surface of the heat exchange tube 104. At the same time, the motor 305 drives the roller brush 304 to rotate, improving the cleaning effect on the heat exchange tube 104.

[0029] 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 spray heat exchanger, comprising a main body for spray heat exchange, wherein two moving devices for driving reciprocating movement are symmetrically arranged on both sides of the main body, characterized in that: It also includes a cleaning device installed on the mobile device for clamping the pipe and then scrubbing and scraping off scale. The cleaning device includes a mounting frame (301), an electric push rod (302) is provided on one side of the mounting frame (301), two limiting rods (303) are symmetrically arranged on the upper and lower sides of the electric push rod (302), a roller brush (304) is rotatably installed on the rear side of the mounting frame (301), a rotating motor (305) is installed on the roller brush (304), a fixing plate (306) is provided in front of the roller brush (304), and seven scraping components are evenly arranged on the fixing plate (306).

2. A spray heat exchanger according to claim 1, characterized in that: The main device includes a heat exchange box (101), a water collection tank (102) is provided at the bottom of the heat exchange box (101), a drain pipe (103) is provided in front of the water collection tank (102), a heat exchange tube (104) is installed inside the heat exchange box (101), and a spray assembly is provided above the heat exchange tube (104).

3. A spray heat exchanger according to claim 1, characterized in that: The mobile device includes a slide (201), on which a slide plate (202) is slidably mounted, and a drive assembly is provided on the top of the slide plate (202).

4. A spray heat exchanger according to claim 1, characterized in that: The scraping assembly includes a clamping ring (307), and two scraping rings (308) are symmetrically arranged on the front and rear sides of the clamping ring (307). The end of the scraping ring (308) away from the clamping ring (307) is tapered.

5. A spray heat exchanger according to claim 2, characterized in that: The spray assembly includes a spray pipe (105), and ten nozzles (106) are evenly installed below the spray pipe (105).

6. A spray heat exchanger according to claim 3, characterized in that: The drive assembly includes a linear guide rail (204) on which a linear motor (203) is mounted.

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