Shell side boiling spiral wound tube type heat exchanger

Abstract

The utility model provides a shell pass boiling spiral wound tube type heat exchanger, which comprises a filter structure and a cleaning structure fixed at the end part of the filter structure, the filter structure comprises a filter box and a cooling piece, the cleaning structure comprises a driving piece and a cleaning piece, the driving piece is fixed at the end part of the cooling piece, the cleaning piece comprises a cleaning cover, and the cleaning cover is fixed at the end part of the cooling piece. And the cleaning cover is in threaded connection with one side of the driving part. The motor drives the lead screw to rotate, so that the cleaning cover moves, external water pressure enters the spring pipe through the water pipe connector, the spring pipe conveys water into the cleaning cover, high-pressure water flow is sprayed out through the first spraying hole and the second spraying hole to wash the inner wall of the shell and the inner wall of the spiral pipe, and the inner wall of the spiral pipe is cleaned through the splashing and penetrating effects of the water flow. The spiral pipe wound inside can be flushed to the maximum extent, impurities of cooling water flowing into the spiral pipe are reduced through double-layer filtering of the coarse filtering cotton and the fine filtering cotton, and the situation that the spiral pipe is heated, and consequently water scale is generated by the cooling water inside the spiral pipe is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a shell-side boiling spiral coiled heat exchanger. Background Art

[0002] Spiral wound tube heat exchanger products include: spiral wound tube heat exchanger, detachable type, corrosion resistant type. This type of heat exchanger has good turbulence effect, high heat transfer efficiency, low probability of impurity deposition, and low scaling tendency. The spiral winding structure completely eliminates the pulling force between the heat exchange tube and the tube sheet, greatly improving the service life. Under the same heat transfer capacity, the volume is about 1 / 10 of the traditional heat exchanger, which can save precious space resources.

[0003] After searching, the Chinese patent with the announcement number CN216770276U discloses a spirally wound tube heat exchanger, including a heat exchanger shell, a heating mechanism installed in the middle of the heat exchanger shell, and the inside of the heating mechanism includes tube sheets installed on both sides of the inner wall of the heat exchanger shell, a main shaft is fixedly connected between the two tube sheets, baffles are equidistantly installed on the surface of the main shaft, a spiral tube is connected to one side of the tube sheet by opening a through hole, and a cleaning mechanism is installed on the upper and lower sides of the heat exchanger shell. After the device is used for a long time, the cleaning mechanism is set up, and the lead screw is driven by the motor to rotate, thereby driving the wiping plate to continuously wipe the surface of the spiral tube, thereby eliminating the scale on the surface of the spiral tube and improving the overall heat conduction effect of the device. At the same time, the wiping plate can also play a baffle effect, which can have a certain blocking effect on the water flow, thereby increasing the residence time of the water flow inside the device and providing sufficient heat conduction time.

[0004] At present, the existing shell-side boiling spiral wound tube heat exchanger can wipe the spiral tubes, but only the outermost spiral tubes can be wiped. The spiral tubes are arranged in layers in alternating rotation directions, so the inner spiral tubes are not easy to wipe. If the water quality of the condensed water is not good, it is easy to cause scale to form in the spiral tubes, thereby reducing the heat exchange effect. Utility Model Content

[0005] The utility model aims to provide a shell-side boiling spiral wound tube heat exchanger, in which a cleaning cover is moved by a motor driving a screw rod to rotate, and external water pressure enters the spring tube through a water pipe joint, so that the spring tube transports water into the cleaning cover, and high-pressure water is sprayed from a first spray hole and a second spray hole to flush the shell and the inner wall of the spiral tube. The internally wound spiral tube can be flushed to the greatest extent through the splashing and penetration effect of the water flow, and the double-layer filtration of the coarse filter cotton and the fine filter cotton is used to reduce the impurities in the cooling water flowing into the spiral tube, so as to prevent the spiral tube from being heated and causing the internal cooling water to generate scale.

[0006] The technical solution adopted by the utility model is as follows: a shell-side boiling spiral coil heat exchanger, comprising a filtering structure and a cleaning structure fixed at the end of the filtering structure, the filtering structure comprising a filter box and a cooling element, the cleaning structure comprising a driving element and a cleaning element, the driving element being fixed at the end of the cooling element, the cleaning element comprising a cleaning cover, the cleaning cover being threadedly connected to one side of the driving element, a spray hole one being provided on one side of the cleaning cover, a spray hole two being provided inside the cleaning cover, a spring tube being fixed on one side of the cleaning cover, a water pipe joint being fixed on the end of the spring tube, a receiving tube being fixed on one side of the water pipe joint, and the receiving tube being fixed on one side of the cooling element.

[0007] In an embodiment of the utility model, a flange 1 is fixed to one side of the filter box, a cover is screwed to one side of the filter box, and a filter frame is sleeved inside the filter box.

[0008] In an embodiment of the utility model, coarse filter cotton is fixed inside the filter frame, and fine filter cotton is arranged on one side of the coarse filter cotton.

[0009] In an embodiment of the utility model, the cooling element includes a shell, the receiving tube is fixed to one side of the shell, the shell is fixed to the end of the filter box, a liquid inlet pipe is fixed to one side of the shell, and a liquid outlet pipe is fixed to one side of the shell.

[0010] In an embodiment of the utility model, a sewage pipe is fixed to one side of the shell, a central pipe is fixed inside the shell, a spiral tube is fixed inside the shell, and a conduit is fixed inside the shell.

[0011] In an embodiment of the utility model, the driving member includes a water outlet pipe, the water outlet pipe is fixed to the end of the shell, a flange 2 is fixed to one side of the water outlet pipe, a support plate is fixed to one side of the water outlet pipe, and a motor is fixed to one side of the support plate.

[0012] In an embodiment of the utility model, a screw is fixed to the output shaft end of the motor, and the cleaning cover is threadedly connected to one side of the screw.

[0013] The beneficial effects of the utility model are:

[0014] The cleaning hood is moved by the motor driving the screw rod to rotate, and the external water pressure enters the spring tube through the water pipe joint, so that the spring tube transports water into the cleaning hood, and the shell and the inner wall of the spiral tube are flushed by spraying high-pressure water from the spray hole 1 and the spray hole 2. The internally wound spiral tube can be flushed to the greatest extent through the splashing and penetration effect of the water flow, and the double-layer filtration of the coarse filter cotton and the fine filter cotton can reduce the impurities in the cooling water flowing into the spiral tube, so as to prevent the spiral tube from being heated and causing scale to form in the internal cooling water. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the filtering structure in the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the cooling element in the utility model;

[0019] Figure 4 It is a structural schematic diagram of the cleaning structure in the utility model.

[0020] In the figure:

[0021] 100-filter structure; 110-filter box; 111-flange 1; 112-cover; 113-filter frame; 114-coarse filter cotton; 115-fine filter cotton; 120-cooling element; 121-housing; 122-liquid inlet pipe; 123-liquid outlet pipe; 124-drain pipe; 125-center pipe; 126-spiral pipe; 127-conduit;

[0022] 200-cleaning structure; 210-driving part; 211-water outlet pipe; 212-flange 2; 213-support plate; 214-motor; 215-screw; 220-cleaning part; 221-cleaning cover; 222-spray hole 1; 223-spray hole 2; 224-spring tube; 225-water pipe joint; 226-storage tube. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example

[0025] See also Figure 1-4The utility model provides a shell-side boiling spiral coil heat exchanger, comprising a filter structure 100 and a cleaning structure 200 fixed at the end of the filter structure 100, the filter structure 100 comprises a filter box 110 and a cooling element 120, the cleaning structure 200 comprises a driving element 210 and a cleaning element 220, the driving element 210 is fixed at the end of the cooling element 120, the cleaning element 220 comprises a cleaning cover 221, the cleaning cover 221 is not in contact with the spiral tube 126 and the shell 121, the cleaning cover 221 is threadedly connected to one side of the driving element 210, and a spray hole 222 is provided on one side of the cleaning cover 221, and the spray hole 222 can spray The inner wall of the shell 121 is flushed, and a second spray hole 223 is opened inside the cleaning cover 221. The second spray hole 223 can flush the spiral tube 126 to the maximum extent. A spring tube 224 is fixed on one side of the cleaning cover 221. The spring tube 224 plays a role of conveying water. The spring tube 224 can shrink and stretch. A water pipe joint 225 is fixed on the end of the spring tube 224. The water pipe joint 225 is connected to the external water pipe. A storage tube 226 is fixed on one side of the water pipe joint 225. The storage tube 226 is fixed on one side of the cooling part 120. The storage tube 226 supports the water pipe joint 225 and stores the shrunk spring tube 224.

[0026] See also Figure 1-4 A flange 111 is fixed on one side of the filter box 110, and a cover 112 is screwed on one side of the filter box 110. After the cover 112 is removed, the filter frame 113 can be taken out. The filter frame 113 is sleeved inside the filter box 110. The filter frame 113 serves to limit and fix the coarse filter cotton 114 and the fine filter cotton 115. The coarse filter cotton 114 is fixed inside the filter frame 113, and the fine filter cotton 115 is arranged on one side of the coarse filter cotton 114. The cooling member 120 includes a shell 121, and the storage tube 226 is fixed on one side of the shell 121. The shell 121 is fixed to the end of the filter box 110, and a liquid inlet pipe 122 is fixed on one side of the shell 121, and a liquid outlet pipe 123 is fixed on one side of the shell 121. The shell A sewage pipe 124 is fixed on one side of the shell 121, and a valve group is provided to control whether the sewage pipe 124 is opened. A central tube 125 is fixed inside the shell 121, and the central tube 125 supports the spiral tube 126. The spiral tubes 126 are fixed inside the shell 121, and the spiral tubes 126 are arranged in a circle, and the adjacent spiral tubes 126 rotate in opposite directions. A conduit 127 is fixed inside the shell 121, and the conduit 127 supports and limits the moving direction of the cleaning cover 221, and also supports the spring tube 224. A long hole is provided on the conduit 127, so that the connection between the spring tube 224 and the cleaning cover 221 can slide in the conduit 127.

[0027] See also Figure 1 and Figure 3-4The driving member 210 includes a water outlet pipe 211, which is fixed at the end of the shell 121. A flange 212 is fixed on one side of the water outlet pipe 211. A support plate 213 is fixed on one side of the water outlet pipe 211. The support plate 213 plays the role of supporting the motor 214. A motor 214 is fixed on one side of the support plate 213. A screw rod 215 is fixed on the output shaft end of the motor 214. The screw rod 215 can drive the cleaning cover 221 to move. The cleaning cover 221 is threadedly connected to one side of the screw rod 215.

[0028] The working process of this utility model:

[0029] When in use, firstly, the flange 111, the flange 212, the water pipe joint 225, the liquid inlet pipe 122 and the liquid outlet pipe 123 are connected to the external pipeline or equipment, and then the cooling water is introduced into the filter box 110. After being filtered by the coarse filter cotton 114 and the fine filter cotton 115 inside the filter box 110, the cooling water will enter the inside of each spiral tube 126, and then be discharged from the outlet pipe 211. At this time, the liquid inlet pipe 122 will introduce the heat body into the shell 121, and after the heat body is dissipated by the spiral tube 126 and the cooling water inside it, it will be discharged from the liquid outlet pipe 123, thereby completing the cooling. During the process, if it is necessary to clean the shell 121 and the spiral tube 126, the motor 214 can be started, and the motor 214 drives the screw rod 215 to rotate, so that the cleaning cover 221 moves inside the shell 121. At this time, the water pipe connected to the water pipe joint 225 will be injected with water, and the water will enter the cleaning cover 221 through the transmission of the spring tube 224, so that the water can be used to flush the inner wall of the shell 121 by using the spray hole 1 222 on the cleaning cover 221, and the wound spiral tube 126 can be flushed by using the spray hole 223, and the flushed dirt will be discharged through the drain pipe 124.

[0030] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A shell-side boiling spiral wound tube heat exchanger, comprising a filtering structure (100) and a cleaning structure (200) fixed at the end of the filtering structure (100), characterized in that: The filtering structure (100) comprises a filter box (110) and a cooling element (120); the cleaning structure (200) comprises a driving element (210) and a cleaning element (220); the driving element (210) is fixed to the end of the cooling element (120); the cleaning element (220) comprises a cleaning cover (221); the cleaning cover (221) is threadedly connected to one side of the driving element (210); a spray hole 1 (222) is provided on one side of the cleaning cover (221); a spray hole 2 (223) is provided inside the cleaning cover (221); a spring tube (224) is fixed to one side of the cleaning cover (221); a water pipe joint (225) is fixed to the end of the spring tube (224); a storage tube (226) is fixed to one side of the water pipe joint (225); and the storage tube (226) is fixed to one side of the cooling element (120).

2. A shell-side boiling spiral coil heat exchanger according to claim 1, characterized in that: A flange 1 (111) is fixed to one side of the filter box (110), a cover (112) is screwed to one side of the filter box (110), and a filter frame (113) is sleeved inside the filter box (110).

3. A shell-side boiling spirally wound heat exchanger according to claim 2, characterized in that: A coarse filter cotton (114) is fixed inside the filter frame (113), and a fine filter cotton (115) is arranged on one side of the coarse filter cotton (114).

4. The shell-side boiling spiral coil heat exchanger according to claim 1, characterized in that: The cooling element (120) comprises a shell (121), the receiving tube (226) is fixed to one side of the shell (121), the shell (121) is fixed to the end of the filter box (110), a liquid inlet tube (122) is fixed to one side of the shell (121), and a liquid outlet tube (123) is fixed to the other side of the shell (121).

5. The shell-side boiling spirally wound heat exchanger according to claim 4, characterized in that: A sewage pipe (124) is fixed on one side of the shell (121), a central pipe (125) is fixed inside the shell (121), a spiral tube (126) is fixed inside the shell (121), and a guide tube (127) is fixed inside the shell (121).

6. The shell-side boiling spiral wound heat exchanger according to claim 1, characterized in that: The driving member (210) comprises a water outlet pipe (211), the water outlet pipe (211) being fixed to the end of the housing (121), a flange 2 (212) being fixed to one side of the water outlet pipe (211), a support plate (213) being fixed to the other side of the water outlet pipe (211), and a motor (214) being fixed to one side of the support plate (213).

7. A shell-side boiling spirally wound heat exchanger according to claim 6, characterized in that: A screw rod (215) is fixed to the output shaft end of the motor (214), and the cleaning cover (221) is threadedly connected to one side of the screw rod (215).

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