Water cooler capable of automatically cleaning inner wall of heat exchange tube

Abstract

The utility model discloses a water cooler capable of automatically cleaning the inner wall of a heat exchange tube, which relates to the technical field of heat exchangers and comprises a shell pass cylinder, one side of the shell pass cylinder is connected with a first tube box through a flange, and the other side of the shell pass cylinder is connected with a second tube box through a flange. Two sets of symmetrical supporting frames are fixedly installed at the bottom end of the shell pass barrel, tube plates are installed at the positions, connected with the first tube box and the second tube box, of the shell pass barrel, a plurality of sets of baffle plates are installed in the shell pass barrel, and heat exchange tubes are installed between the baffle plates and the tube plates. According to the heat exchanger, the spiral scraping pieces are installed in the heat exchange pipes, when cooling water passes through the heat exchange pipes, the spiral scraping pieces can be pushed to rotate slowly in the heat exchange pipes, scales on the inner walls of the heat exchange pipes can be scraped in the rotating process of the spiral scraping pieces, and after the spiral scraping pieces are arranged in the heat exchange pipes, the channel area of the cooling water is reduced; the flow speed of cooling water is increased, and the heat exchange efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a water cooler which automatically cleans the inner wall of a heat exchange tube. Background Art

[0002] Water coolers are heat exchangers used to cool materials. In chemical production, some processes require the use of water coolers to cool high-temperature materials. Since the cooling process requires a large amount of cooling water, river water and other natural water are usually used as cooling water. Because untreated natural water contains a certain amount of calcium and magnesium ions, these waters are temporarily hard water. When used to cool high-temperature materials, the calcium and magnesium ions in the water will generate calcium carbonate and magnesium carbonate after being heated, which will fold on the surface of the heat exchange tube to form a scaling layer.

[0003] Chinese utility model disclosure specification CN219083852U discloses a heat exchanger for facilitating cleaning of heat exchange tubes, including a heat exchanger assembly and a cleaning assembly, the heat exchanger assembly including a heat exchanger shell, fixed plates fixed at both ends of the heat exchanger shell, heat exchange tubes vertically arranged on the inner sides of the two fixed plates, and a slide groove opened on the outer wall of the heat exchanger shell, the cleaning assembly including a water inlet pipe fixed at the upper end of the heat exchanger shell and connected to the inside of the heat exchanger shell, a sewage pipe fixed at the lower end of the heat exchanger shell and connected to the inside of the heat exchanger shell, a sliding plate arranged inside the heat exchanger shell, and a through hole opened on the sliding plate and located on the outer wall of the heat exchange tube;

[0004] The above-mentioned heat exchanger can control the sliding plate to slide by the operator by manually controlling the fixed plate to slide in the slide groove through the set sliding plate, so that the cleaning brush in the through hole of the sliding plate cleans the heat exchange tubes in the heat exchanger shell. The heat exchange tubes can be cleaned without removing the shell, which is convenient for the operator to clean the heat exchange tubes. However, it is necessary to stop production and disassemble the equipment regularly for cleaning, which will cause certain production stoppage losses. In addition, the cleaning of the water cooler is time-consuming and labor-intensive, which is very inconvenient, but there is no good solution. For this reason, we provide a water cooler with automatic cleaning of the inner wall of the heat exchange tube to remedy the above problems. Utility Model Content

[0005] The utility model aims to provide a water cooler with automatic cleaning of the inner wall of a heat exchange tube, so as to solve the problems raised in the background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A water cooler with automatic cleaning of the inner wall of a heat exchange tube, comprising a shell-side cylinder, one side of the shell-side cylinder is connected to a first pipe box through a flange, and the other side of the shell-side cylinder is connected to a second pipe box through a flange, two groups of symmetrical support frames are fixedly installed at the bottom end of the shell-side cylinder, and tube sheets are installed at the connection positions of the shell-side cylinder with the first pipe box and the second pipe box respectively;

[0008] A plurality of baffles are installed inside the shell-side cylinder, and heat exchange tubes are installed between the baffles and the tube sheets. The heat exchange tubes are installed with spiral scrapers, and bent levers are fixedly installed at both ends of the spiral scrapers.

[0009] As a further technical solution of the utility model, a cooling water inlet is connected through the bottom end of the first pipe box, and a cooling water outlet is connected through the top end of the second pipe box.

[0010] As a further technical solution of the utility model, the top end of the shell-side cylinder close to the first pipe box is connected through a shell-side material outlet, and the bottom end of the shell-side cylinder close to the second pipe box is connected through a shell-side material inlet.

[0011] As a further technical solution of the utility model, the spiral scraper is formed by twisting a steel strip, and the width of the spiral scraper is smaller than the inner diameter of the heat exchange tube.

[0012] As a further technical solution of the utility model, the two groups of bent bars both extend beyond the end surfaces of both ends of the heat exchange tube.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model installs a spiral scraper inside the heat exchange tube, so that when cooling water passes through the heat exchange tube, the spiral scraper can be pushed to rotate slowly inside the heat exchange tube. During the rotation of the spiral scraper, scale on the inner wall of the heat exchange tube can be scraped off. After the spiral scraper is installed in the heat exchange tube, the channel area of ​​the cooling water is reduced, the flow rate of the cooling water is increased, and the heat exchange efficiency can be improved. The overall operation process does not need to stop the equipment. The heat exchange tube inside the equipment can be cleaned during operation, which greatly improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a three-dimensional structural schematic diagram of a water cooler with automatic cleaning of the inner wall of a heat exchange tube.

[0016] Figure 2 The utility model is a water cooler for automatically cleaning the inner wall of a heat exchange tube. Figure 1 Partial cross-sectional view.

[0017] Figure 3The utility model discloses a cross-sectional structural diagram of a heat exchange tube in a water cooler with automatic cleaning of the inner wall of the heat exchange tube.

[0018] Figure 4 The utility model is a schematic diagram of a spiral scraper in a water cooler for automatically cleaning the inner wall of a heat exchange tube.

[0019] In the figure: 1. shell-side cylinder; 10. shell-side material outlet; 11. shell-side material inlet; 12. baffle; 13. heat exchange tube; 130. spiral scraper; 131. bent lever; 2. first tube box; 20. cooling water inlet; 3. second tube box; 30. cooling water outlet; 4. support frame; 5. tube sheet. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 In an embodiment of the utility model, a water cooler with automatic cleaning of the inner wall of a heat exchange tube comprises a shell-side cylinder 1, one side of the shell-side cylinder 1 is connected to a first pipe box 2 through a flange, and the other side of the shell-side cylinder 1 is connected to a second pipe box 3 through a flange, two groups of symmetrical support frames 4 are fixedly installed at the bottom end of the shell-side cylinder 1, and tube sheets 5 are installed at the connection positions of the shell-side cylinder 1 with the first pipe box 2 and the second pipe box 3 respectively;

[0022] A plurality of baffles 12 are installed inside the shell-side cylinder 1, and a heat exchange tube 13 is installed between the baffle 12 and the tube sheet 5. The heat exchange tube 13 is installed with a spiral scraper 130, and bent levers 131 are fixedly installed at both ends of the spiral scraper 130.

[0023] In this embodiment, a cooling water inlet 20 is connected through the bottom end of the first pipe box 2 , and a cooling water outlet 30 is connected through the top end of the second pipe box 3 .

[0024] In this embodiment, the top end of the shell-side cylinder 1 close to the first pipe box 2 is penetrated and connected with a shell-side material outlet 10 , and the bottom end of the shell-side cylinder 1 close to the second pipe box 3 is penetrated and connected with a shell-side material inlet 11 .

[0025] In this embodiment, the spiral scraper 130 is formed by twisting a steel belt, the width of the steel belt is smaller than the inner diameter of the heat exchange tube 13 , and the spiral scraper 130 can rotate freely in the heat exchange tube 13 .

[0026] In this embodiment, the two groups of bent bars 131 both extend beyond the end surfaces of the heat exchange tube 13 .

[0027] The working principle of the utility model is: when in use, the material fluid that needs water cooling is introduced through the shell side material inlet 11, so that it enters the inside of the shell side cylinder 1, and at the same time, cold water is injected into the cooling water inlet 20, so that it enters the tube sheet 5 along the first tube box 2, and enters the inside of the heat exchange tube 13 along the tube sheet 5;

[0028] During this process, a spiral scraper 130 is installed inside the heat exchange tube 13 so that when cooling water passes through the heat exchange tube 13, the spiral scraper 130 can be pushed to rotate slowly inside the heat exchange tube 13. During the rotation of the spiral scraper 130, the scale on the inner wall of the heat exchange tube 13 can be scraped off. After the spiral scraper 130 is installed inside the heat exchange tube 13, the channel area of ​​the cooling water is reduced, the flow rate of the cooling water is increased, and the heat exchange efficiency can be improved. The overall operation process does not require the equipment to be stopped. The heat exchange tube 13 inside the equipment can be cleaned while it is running, which greatly improves production efficiency. The bent bars 131 at both ends of the spiral scraper 130, the bent bars 131 near the cooling water inlet 20 can hook the end surface of the heat exchange tube 13 to prevent it from moving to the other end of the heat exchange tube 13 with the water flow, and the bent bars 131 near the cooling water outlet 30 are used to prevent the spiral scraper 130 from slipping out of the heat exchange tube 13 toward the cooling water inlet during transportation of the water cooler as a whole;

[0029] Finally, the material fluid after heat exchange is discharged along the shell side material outlet 10, completing the water cooling process.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A water cooler with automatic cleaning of the inner wall of a heat exchange tube, characterized in that: It comprises a shell-side cylinder (1), one side of the shell-side cylinder (1) is connected to a first pipe box (2) via a flange, and the other side of the shell-side cylinder (1) is connected to a second pipe box (3) via a flange, two groups of symmetrical support frames (4) are fixedly mounted at the bottom end of the shell-side cylinder (1), and tube sheets (5) are mounted at the connection positions of the shell-side cylinder (1) with the first pipe box (2) and the second pipe box (3); A plurality of groups of baffles (12) are installed inside the shell-side cylinder (1), and a heat exchange tube (13) is installed between the baffles (12) and the tube sheet (5). The heat exchange tube (13) is installed with a spiral scraper (130), and bent stop rods (131) are fixedly installed at both ends of the spiral scraper (130).

2. A water cooler with automatic cleaning of the inner wall of a heat exchange tube according to claim 1, characterized in that: The bottom end of the first pipe box (2) is connected through a cooling water inlet (20), and the top end of the second pipe box (3) is connected through a cooling water outlet (30).

3. The water cooler with automatic cleaning of the inner wall of the heat exchange tube according to claim 1, characterized in that: The top end of the shell-side cylinder (1) close to the first pipe box (2) is connected through a shell-side material outlet (10), and the bottom end of the shell-side cylinder (1) close to the second pipe box (3) is connected through a shell-side material inlet (11).

4. The water cooler with automatic cleaning of the inner wall of the heat exchange tube according to claim 1, characterized in that: The spiral scraper (130) is formed by twisting a steel strip, and the width of the spiral scraper (130) is smaller than the inner diameter of the heat exchange tube (13).

5. The water cooler with automatic cleaning of the inner wall of the heat exchange tube according to claim 1, characterized in that: The two groups of bent stop rods (131) both extend beyond the end surfaces of both ends of the heat exchange tube (13).

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