Heat exchanger with heat exchange tubes not prone to being blocked

Abstract

The heat exchanger comprises a pipe body, the top of the pipe body is communicated with a water inlet pipe, a filter screen is fixedly installed on the left side of an inner cavity of the pipe body, a flange plate is fixedly installed on the left side of the pipe body, spiral grooves are formed in the surface of the flange plate, a descaling mechanism is arranged on the right side of the pipe body, and the descaling mechanism is arranged on the left side of the pipe body. The descaling mechanism comprises a circular plate, a clamping block, a scraper, a second clamping plate and a brush, the circular plate is arranged on the right side of the pipe body, by arranging the descaling mechanism, water scale accumulated in an inner cavity of the pipe body can be removed, and the situation that due to the fact that the water scale adheres to the inner cavity of the pipe body for a long time, the space where water flow can circulate in the pipe body becomes small, and the water flow cannot be blocked is avoided. Meanwhile, the incrustation is prevented from entering the heat exchanger, so that a heat exchange pipe in the heat exchanger is blocked due to coverage of the incrustation, the stability of the heat exchanger during overall operation is improved, and the heat exchange efficiency cannot be reduced due to interference of the incrustation.

Description

Technical Field

[0001] The utility model relates to a heat exchanger with heat exchange tubes that are not easily blocked, and belongs to the technical field of heat exchangers. Background Art

[0002] A heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid. It is also called a heat exchanger. Heat exchangers play an important role in chemical, petroleum, power, food and many other industrial productions. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators and reboilers, etc., and are widely used.

[0003] A Chinese patent publication (publication number: CN 205482481 U) discloses a heat exchanger, including a metal tube and a metal connecting plate, wherein a hole is formed on the connecting plate, and the tube passes through the connecting plate from the hole, wherein the tube includes an enlarged tube mouth and a convex portion protruding from a periphery of the outer surface of the tube, wherein the connecting plate is located between the tube mouth and the convex portion, wherein the tube mouth and the convex portion are partially accommodated in the hole, and a welding layer is provided between the tube mouth, the convex portion and the hole. In the heat exchanger of the utility model, since the enlarged tube mouth and the convex portion protruding from the tube surface are provided, the gap between the tube and the hole can be reduced, and the strength of the welding layer between the tube mouth, the convex portion and the hole wall of the hole can be ensured, so that the connection between the tube and the connecting plate is more secure;

[0004] However, during actual use of the heat exchanger, the heat exchange tubes are more likely to be blocked due to the influence of scale. When scale covers the inner wall of the heat exchange tube, it will seriously affect the heat exchange effect of the heat exchanger. At the same time, as the scale covers more, the space for liquid to pass through the heat exchange tube will also be reduced, which will cause the heat exchange efficiency of the heat exchanger to drop significantly.

[0005] Therefore, a heat exchanger with heat exchange tubes that are not easily blocked is proposed. Utility Model Content

[0006] In view of this, the utility model provides a heat exchanger with heat exchange tubes that are not easily blocked, so as to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0007] The technical solution of the utility model is achieved as follows: a heat exchanger with heat exchange tubes that are not easily blocked, comprising a tube body, the top of the tube body is connected to a water inlet pipe, a filter is fixedly installed on the left side of the inner cavity of the tube body, a flange is fixedly installed on the left side of the tube body, screw grooves are provided on the surface of the flange, a descaling mechanism is arranged on the right side of the tube body, the descaling mechanism comprises a circular plate, a motor, a rotating plate, a connecting rod, a first circular ring, a first clamping plate, a block, a scraper, a second clamping plate and a brush, and the circular plate is arranged on the right side of the tube body.

[0008] Further preferably, the motor is fixedly installed on the right side of the circular plate, the rotating plate is fixedly connected to the output end of the motor, the four connecting rods are fixedly installed on the left side of the rotating plate, the first circular ring is fixedly installed on the left side of the four connecting rods, the three first clamping plates are fixedly installed around the surface of the first circular ring, the three clamping blocks are fixedly installed on the outsides of the three first clamping plates, the three scrapers are arranged on the outsides of the three clamping blocks, the three second clamping plates are fixedly installed on the outsides of the first circular ring, and the three brushes are fixedly installed on the outsides of the three second clamping plates.

[0009] Further preferably, the inner sides of the three scrapers are each provided with a card slot, and the three card blocks are each carded in the inner cavities of the three card slots.

[0010] Further preferably, a slot is provided on the right side of the tube body, a sealing ring is fixedly installed on the left side of the circular plate, and the sealing ring is clamped in the inner cavity of the slot.

[0011] Further preferably, a disassembly mechanism is provided on the right side of the circular plate, and the disassembly mechanism includes a rotating plate, which is arranged on the right side of the circular plate, and movable grooves are opened on all four sides of the right side of the rotating plate, and fixed rods are movably connected in the inner cavities of the four movable grooves, and pull rods are fixedly installed on all four sides of the right side of the rotating plate, and mounting blocks are fixedly installed on all four sides of the surface of the tube body, and the inner sides of the four fixing rods are inserted into the inner cavities of the four mounting blocks.

[0012] Further preferably, limiting grooves are provided around the right side of the circular plate, and the inner sides of the four fixing rods are slidably connected to the inner cavities of the four limiting grooves.

[0013] Further preferably, a movable groove is opened on the right side of the circular plate, movable blocks are fixedly installed around the left side of the rotating plate, and the four movable blocks are slidably connected to the inner cavity of the movable groove.

[0014] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0015] 1. The utility model can remove the scale accumulated in the inner cavity of the tube body by arranging a descaling mechanism, so as to prevent the scale from adhering to the inner cavity of the tube body for a long time, resulting in a smaller space for water to flow through the tube body, and also prevent the scale from entering the interior of the heat exchanger, thereby causing the heat exchange tubes in the heat exchanger to be blocked due to the coverage of the scale, thereby improving the stability of the overall operation of the heat exchanger and preventing the heat exchange efficiency from being reduced due to the interference of the scale.

[0016] Second, the utility model can scrape and clean the scale adhered to the inner wall of the pipe body by arranging the scraper and the brush, so as to avoid the scale being accumulated in the inner cavity of the pipe body and affecting the circulation of water, and can facilitate the disassembly of the block by arranging the card slot, so as to avoid the blunt position of the blade of the block after long-term use, resulting in the inability to scrape the sticky scale, and can facilitate the disassembly of the descaling mechanism by arranging the disassembly mechanism, so as to facilitate the cleaning of the scale scraped off from the pipe body in daily use and discharge it from the inner cavity of the pipe body, and can facilitate the maintenance and care of the parts of the descaling mechanism, and can limit the moving direction of the limiting groove by arranging the limiting groove to avoid the displacement when moving, thereby affecting the disassembly of the descaling mechanism as a whole, and can limit the rotation direction of the rotating plate by arranging the movable block and the movable slot to support the rotating plate while preventing the position from changing when moving, thereby affecting the disassembly or installation of the descaling mechanism as a whole.

[0017] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a three-dimensional front view structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the disassembly mechanism structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the pipe structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the descaling mechanism structure of the utility model.

[0023] Figure numerals: 1. tube body; 2. descaling mechanism; 201. circular plate; 202. motor; 203. rotating plate; 204. connecting rod; 205. first circular ring; 206. first clamping plate; 207. clamping block; 208. scraper; 209. second clamping plate; 210. brush; 211. clamping slot; 3. disassembly mechanism; 301. rotating plate; 302. moving slot; 303. pull rod; 304. fixing rod; 305. mounting block; 306. limiting slot; 307. movable slot; 308. movable block; 4. water inlet pipe; 5. flange; 6. screw groove; 7. filter; 8. slot; 9. sealing ring. DETAILED DESCRIPTION

[0024] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0025] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0026] Example 1

[0027] like Figure 1-4 As shown, an embodiment of the utility model provides a heat exchanger with heat exchange tubes that are not easily blocked, including a tube body 1, the top of the tube body 1 is connected to a water inlet pipe 4, a filter screen 7 is fixedly installed on the left side of the inner cavity of the tube body 1, a flange 5 is fixedly installed on the left side of the tube body 1, and screw grooves 6 are provided on the surface of the flange 5. A descaling mechanism 2 is arranged on the right side of the tube body 1, and the descaling mechanism 2 includes a circular plate 201, a motor 202, a rotating plate 203, a connecting rod 204, a first circular ring 205, a first clamping plate 206, a block 207, a scraper 208, a second clamping plate 209 and a brush 210, and the circular plate 201 is arranged on the right side of the tube body 1.

[0028] By setting up the descaling mechanism 2, the scale accumulated in the inner cavity of the tube body 1 can be removed to prevent the scale from adhering to the inner cavity of the tube body 1 for a long time, resulting in a smaller space for water to flow through the tube body 1. At the same time, it also prevents the scale from entering the interior of the heat exchanger, thereby causing the heat exchange tubes in the heat exchanger to be blocked due to the coverage of the scale, thereby improving the overall stability of the heat exchanger during operation and preventing the heat exchange efficiency from being reduced due to the interference of the scale.

[0029] Example 2

[0030] In one embodiment, the motor 202 is fixedly installed on the right side of the circular plate 201, the rotating plate 203 is fixedly connected to the output end of the motor 202, the four connecting rods 204 are fixedly installed on the left side of the rotating plate 203, the first circular ring 205 is fixedly installed on the left side of the four connecting rods 204, the three first clamping plates 206 are fixedly installed on the four sides of the surface of the first circular ring 205, the three clamping blocks 207 are fixedly installed on the outside of the three first clamping plates 206, the three scrapers 208 are arranged on the outside of the three clamping blocks 207, the three second clamping plates 209 are fixedly installed on the outside of the first circular ring 205, the three brushes 210 are fixedly installed on the outside of the three second clamping plates 209, the inner sides of the three scrapers 208 are provided with a clamping groove 211, the three clamping blocks 207 are clamped in the inner cavities of the three clamping grooves 211, the right side of the tube body 1 is provided with a slot 8, and the left side of the circular plate 201 is fixedly installed with a sealing ring 9. The sealing ring 9 is snapped into the inner cavity of the slot 8, and a disassembly mechanism 3 is provided on the right side of the circular plate 201. The disassembly mechanism 3 includes a rotating plate 301, and the rotating plate 301 is arranged on the right side of the circular plate 201. Moving grooves 302 are opened around the right side of the rotating plate 301, and the inner cavities of the four moving grooves 302 are movably connected with fixed rods 304, and pull rods 303 are fixedly installed around the right side of the rotating plate 301. Mounting blocks 305 are fixedly installed around the surface of the tube body 1, and the inner sides of the four fixing rods 304 are inserted into the inner cavities of the four mounting blocks 305. Limiting grooves 306 are opened around the right side of the circular plate 201, and the inner sides of the four fixing rods 304 are slidably connected to the inner cavities of the four limiting grooves 306. A movable groove 307 is opened on the right side of the circular plate 201, and movable blocks 308 are fixedly installed around the left side of the rotating plate 301, and the four movable blocks 308 are slidably connected to the inner cavity of the movable groove 307.

[0031] By providing the scraper 208 and the brush 210, the scale adhered to the inner wall of the tube body 1 can be scraped and cleaned to prevent it from accumulating in the inner cavity of the tube body 1 and affecting the circulation of water. By providing the card slot 211, the card block 207 can be easily disassembled to prevent the card block 207 from becoming blunt after long-term use, resulting in the inability to scrape the sticky scale. By providing the disassembly mechanism 3, the descaling mechanism 2 can be easily disassembled to facilitate cleaning of the scale scraped off the tube body 1 in daily use. It is discharged from the inner cavity of the tube body 1, which facilitates the maintenance and care of the parts of the descaling mechanism 2. By setting the limit groove 306, the moving direction of the limit groove 306 can be limited to avoid deviation when it moves, thereby affecting the disassembly of the entire descaling mechanism 2. By setting the movable block 308 and the movable groove 307, the rotating plate 301 can be supported and its rotation direction can be limited to avoid position change when it moves, thereby affecting the disassembly or installation of the entire descaling mechanism 2.

[0032] When the utility model is working, water flows into the inner cavity of the pipe body 1 through the water inlet pipe 4, and at this time, the water flows through the filter screen 7 to the heat exchanger, and the solid matter in the water will be blocked by the filter screen 7 in the inner cavity of the pipe body 1. Then, the output of the motor 202 drives the rotating plate 203 to rotate. With the rotation of the rotating plate 203, the connecting rod 204 drives the first circular ring 205 to rotate synchronously, and the first clamping plate 206 and the second clamping plate 209 respectively drive the block 207, the scraper 208 and the brush 210 to rotate, so as to bond the solid matter to the heat exchanger. The scale in the inner cavity of the tube body 1 is scraped off, and the scale falls to the bottom of the inner cavity of the tube body 1. Then, the rotating plate 301 is rotated by grasping the pull rod 303, and the fixed rod 304 moves outward through the cooperation of the movable groove 302 and the limit groove 306. The fixed rod 304 is moved out of the inner cavity of the mounting block 305, and then the circular plate 201 is pulled forward to make the sealing ring 9 move out of the inner cavity of the slot 8. Then, the disassembly of the descaling mechanism 2 as a whole can be completed, which is convenient for cleaning the scale in the inner cavity of the tube body 1.

[0033] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A heat exchanger with heat exchange tubes that are not easily blocked, characterized in that: The invention comprises a pipe body (1), the top of the pipe body (1) is connected to a water inlet pipe (4), a filter screen (7) is fixedly installed on the left side of the inner cavity of the pipe body (1), a flange (5) is fixedly installed on the left side of the pipe body (1), and the surface of the flange (5) is provided with a screw groove (6), and a descaling mechanism (2) is arranged on the right side of the pipe body (1), and the descaling mechanism (2) comprises a circular plate (201), a motor (202), a rotating plate (203), a connecting rod (204), a first circular ring (205), a first clamping plate (206), a clamping block (207), a scraper (208), a second clamping plate (209) and a brush (210), and the circular plate (201) is arranged on the right side of the pipe body (1).

2. A heat exchanger with heat exchange tubes that are not easily blocked according to claim 1, characterized in that: The motor (202) is fixedly mounted on the right side of the circular plate (201), the rotating plate (203) is fixedly connected to the output end of the motor (202), the four connecting rods (204) are fixedly mounted on the left side of the rotating plate (203), the first circular ring (205) is fixedly mounted on the left side of the four connecting rods (204), the three first clamping plates (206) are fixedly mounted on the four sides of the surface of the first circular ring (205), the three clamping blocks (207) are fixedly mounted on the outside of the three first clamping plates (206), the three scrapers (208) are arranged on the outside of the three clamping blocks (207), the three second clamping plates (209) are fixedly mounted on the outside of the first circular ring (205), and the three brushes (210) are fixedly mounted on the outside of the three second clamping plates (209).

3. A heat exchanger with heat exchange tubes that are not easily blocked according to claim 1, characterized in that: The inner sides of the three scrapers (208) are each provided with a clamping groove (211), and the three clamping blocks (207) are each clamped in the inner cavities of the three clamping grooves (211).

4. A heat exchanger with heat exchange tubes that are not easily blocked according to claim 1, characterized in that: A slot (8) is provided on the right side of the tube body (1), and a sealing ring (9) is fixedly installed on the left side of the circular plate (201), wherein the sealing ring (9) is snap-fitted into the inner cavity of the slot (8).

5. The heat exchanger with heat exchange tubes that are not easily blocked according to claim 1, characterized in that: A disassembly mechanism (3) is provided on the right side of the circular plate (201), and the disassembly mechanism (3) comprises a rotating plate (301), and the rotating plate (301) is provided on the right side of the circular plate (201), and movable grooves (302) are provided on the four sides of the right side of the rotating plate (301), and the inner cavities of the four movable grooves (302) are movably connected with fixed rods (304), and the right side of the rotating plate (301) is fixedly installed with pull rods (303), and the surface of the tube body (1) is fixedly installed with mounting blocks (305), and the inner sides of the four fixing rods (304) are inserted into the inner cavities of the four mounting blocks (305).

6. A heat exchanger with heat exchange tubes that are not easily blocked according to claim 5, characterized in that: Limiting grooves (306) are provided around the right side of the circular plate (201), and the inner sides of the four fixing rods (304) are slidably connected to the inner cavities of the four limiting grooves (306).

7. A heat exchanger with heat exchange tubes that are not easily blocked according to claim 5, characterized in that: A movable groove (307) is provided on the right side of the circular plate (201), and movable blocks (308) are fixedly installed around the left side of the rotating plate (301), and the four movable blocks (308) are slidably connected to the inner cavity of the movable groove (307).

Images