Self-cleaning column type heat exchanger

Abstract

The utility model relates to the technical field of heat exchangers, and discloses a self-cleaning column type heat exchanger which comprises a shell, a left tube box is arranged on the left side of the shell, a right tube box is arranged on the right side of the shell, a flushing assembly is arranged on the front side of the outer end of the shell, a support is arranged at the lower end of the shell, and a tube plate assembly is arranged on the left side of the outer end of the shell. A liquid inlet pipe is arranged in the middle of the upper left end of the pipe box. According to the utility model, the main rotary brush and the side rotary brush are arranged and can rotate left and right along the circulating grooves formed in the outer ends of the main rotary rod and the side rotary rod under the action of water flow sprayed by the high-pressure spray head, and the surfaces, which are not easy to wash, of the inner sides of the outer heat exchange tube and the inner heat exchange tube are washed by the brush sheets on the outer side; and the outer side surface of the heat exchanger is washed by high-pressure water flow sprayed by the high-pressure spray head, so that the cleanliness is ensured, the heat exchanger can perform self-cleaning work, the internal cleaning difficulty is reduced, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a self-cleaning column-type heat exchanger. Background Art

[0002] The column heat exchanger is also called the shell and tube heat exchanger. It is the most widely used heat exchanger in the chemical and alcohol production fields. The long-term operation of the shell and tube heat exchanger will cause the outer end of the heat exchange tube to be blocked by scale, which will reduce the efficiency of the heat exchanger, increase energy consumption and shorten the life of the heat exchanger.

[0003] At present, when cleaning the existing shell and tube heat exchanger, it is necessary to disassemble its shell and internal piping structure, manually flush and clean the scale, and then assemble it to increase the service life of the heat exchanger. However, this cleaning method is not only cumbersome, but also time-consuming, labor-intensive and inefficient, which affects the working efficiency of the heat exchanger. Therefore, it is necessary to provide a self-cleaning column heat exchanger to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a self-cleaning column-type heat exchanger, which solves the problem that cleaning scale inside the existing shell-and-tube heat exchanger is cumbersome, time-consuming and labor-intensive.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a self-cleaning column heat exchanger, comprising a shell, a left tube box is provided on the left side of the shell, a right tube box is provided on the right side of the shell, a flushing assembly is provided on the front side of the outer end of the shell, a support is provided at the lower end of the shell, a tube sheet assembly is provided on the left side of the outer end of the shell, a liquid inlet pipe is provided in the middle of the upper left end of the tube box, and a circulation assembly is provided inside the shell;

[0008] The flushing assembly includes a pump box, a delivery pipe, a surrounding pipe, a transverse pipe and a high-pressure nozzle. A delivery pipe is provided on the left side of the outer end of the pump box, a surrounding pipe is provided at the rear end of the delivery pipe, a transverse pipe is provided at the outer end of the surrounding pipe, and a high-pressure nozzle is provided on the inner side of the transverse pipe.

[0009] Optionally, the circulation component includes a ring plate, a main rotating rod, a side rotating rod, a main rotating brush and a side rotating brush. The main rotating rod is provided in the middle of the right end of the ring plate, the side rotating rod is provided on the outside of the main rotating rod, the main rotating brush is provided at the outer end of the main rotating rod, and the side rotating brush is provided on the outside of the side rotating rod.

[0010] Optionally, the tube sheet assembly includes a tube sheet body, an outer heat exchange tube and an inner heat exchange tube, the outer side of the front end of the tube sheet body is provided with an outer heat exchange tube, and the inner side of the outer heat exchange tube is provided with an inner heat exchange tube.

[0011] Optionally, a water outlet pipe is opened on the left side of the upper end of the shell, a water inlet pipe is opened on the right side of the lower end of the shell, the left and right pipe boxes are sealed and reinforced with the tube sheet assembly, a drain pipe is opened in the middle of the lower right end of the pipe box, and two supports are symmetrically distributed.

[0012] Optionally, water suction pipes are provided on the left and right sides of the front end of the pump box, the delivery pipe and the surrounding pipe are connected to each other, there are two surrounding pipes symmetrically distributed, there are twenty transverse pipes symmetrically distributed, the transverse pipes and the surrounding pipes are connected to each other, and there are twenty high-pressure nozzles symmetrically distributed.

[0013] Optionally, there are two symmetrically distributed ring plates, six symmetrically distributed side-rotating rods, and six symmetrically distributed side-rotating brushes.

[0014] Optionally, circulation grooves are provided on the outer sides of the main rotating rod and the side rotating rod, the main rotating brush is matched with the main rotating rod, and the side rotating rod is matched with the side rotating brush.

[0015] Optionally, twelve outer heat exchange tubes are symmetrically distributed, six inner heat exchange tubes are symmetrically distributed, and the outer heat exchange tubes and the inner heat exchange tubes are sealedly connected to the tube sheet body.

[0016] In summary, the technical effects and advantages of the utility model are:

[0017] The utility model has a reasonable structure. The overall shape of the main rotating brush and the side rotating brush is similar to a fan blade. Under the action of the water flow sprayed by the high-pressure nozzle, the brushes can rotate on the left and right sides along the circulation grooves opened at the outer ends of the main rotating rod and the side rotating rod. The outer brushes are used to wash the surfaces of the outer heat exchange tube and the inner side of the inner heat exchange tube that are difficult to wash, and impurities adhering to the surface are cleaned. The outer surface is washed by the high-pressure water flow sprayed by the high-pressure nozzle to ensure cleanliness, so that the heat exchanger can perform self-cleaning work, reduce the difficulty of internal cleaning, and save time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the shell of the utility model;

[0020] Figure 3 This is a schematic diagram of the left side cross-sectional structure of the flushing component of the utility model;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the circulation component of the utility model.

[0022] In the figure: 1. Shell; 2. Left tube box; 3. Right tube box; 4. Flushing assembly; 5. Support; 6. Tube sheet assembly; 7. Liquid inlet pipe; 8. Circulation assembly; 401. Pump box; 402. Delivery pipe; 403. Surrounding pipe; 404. Transverse pipe; 405. High-pressure nozzle; 601. Tube sheet body; 602. External heat exchange tube; 603. Internal heat exchange tube; 801. Ring plate; 802. Main rotary rod; 803. Side rotary rod; 804. Main rotary brush; 805. Side rotary brush. DETAILED DESCRIPTION

[0023] 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.

[0024] Example: Reference Figure 1-Figure 4 A self-cleaning column heat exchanger shown in the figure comprises a shell 1, a water outlet pipe is provided on the left side of the upper end of the shell 1, a water inlet pipe is provided on the right side of the lower end of the shell 1, a filter block is embedded and installed inside the water inlet pipe, a left pipe box 2 is bolted to the left side of the shell 1, a right pipe box 3 is bolted to the right side of the shell 1, a drain pipe is provided in the middle of the lower end of the right pipe box 3, a flushing assembly 4 is welded and installed on the front side of the outer end of the shell 1, a support 5 is clamped and installed at the lower end of the shell 1, and the support 5 is symmetrically distributed in two pieces, a tube sheet assembly 6 is embedded and installed on the left side of the outer end of the shell 1, the left pipe box 2 and the right pipe box 3 are sealed and reinforced with the tube sheet assembly 6, a liquid inlet pipe 7 is provided in the middle of the upper end of the left pipe box 2, a filter block is embedded and installed inside the liquid inlet pipe 7, and a circulation assembly 8 is welded and installed inside the shell 1; the flushing assembly 4 comprises a pump box 401, a delivery pipe 402, a surrounding pipe 403, a transverse pipe 404 and High-pressure nozzle 405, water suction pipes are provided on the left and right sides of the front end of the pump box 401, which can extract external water flow and inject it into the interior of the shell 1 to facilitate subsequent high-pressure flushing work. The left side of the outer end of the pump box 401 is connected and installed with a delivery pipe 402, and the rear end of the delivery pipe 402 is connected and installed with a surrounding pipe 403. There are two symmetrically distributed surrounding pipes 403, and the delivery pipe 402 and the surrounding pipe 403 are interconnected. The outer end of the surrounding pipe 403 is connected and connected with a transverse pipe 404, and there are twenty symmetrically distributed transverse pipes 404, and the transverse pipes 404 and the surrounding pipes 403 are interconnected. The inner side of the transverse pipe 404 is threadedly installed with a high-pressure nozzle 405, and there are twenty symmetrically distributed high-pressure nozzles 405, which can squeeze and spray the water flow injected into the interior, perform high-pressure flushing on the internal scale, and allow it to self-clean the interior.

[0025] As an optional implementation in this embodiment, Figure 3 and Figure 4 As shown, the circulation component 8 includes a ring plate 801, a main rotating rod 802, a side rotating rod 803, a main rotating brush 804 and a side rotating brush 805. The ring plate 801 is symmetrically distributed with two pieces. The main rotating rod 802 is sleeved and installed in the middle of the right end of the ring plate 801, and the side rotating rod 803 is sleeved and installed on the outer side of the main rotating rod 802. Circulation grooves are provided on the outer sides of the main rotating rod 802 and the side rotating rod 803. There are six side rotating rods 803 symmetrically distributed. The main rotating brush 804 is sleeved and installed on the outer end of the main rotating rod 802. The main rotating brush 804 is adapted to the main rotating rod 802. The side rotating brush 805 is sleeved and installed on the outer side of the side rotating rod 803. The side rotating rod 803 is adapted to the side rotating brush 805. There are six side rotating brushes 805 symmetrically distributed. The overall shape of the main rotating brush 804 and the side rotating brush 805 is similar to that of a fan blade. Under the impact of water flow, they can work on the left and right sides along the circulation groove. The tube sheet assembly 6 comprises a tube sheet body 601, an outer heat exchange tube 602 and an inner heat exchange tube 603. The outer side of the front end of the tube sheet body 601 is sealed with the outer heat exchange tube 602, and there are twelve outer heat exchange tubes 602 symmetrically distributed. The inner side of the outer heat exchange tube 602 is sealed with the inner heat exchange tube 603, and there are six inner heat exchange tubes 603 symmetrically distributed. The outer heat exchange tube 602 and the inner heat exchange tube 603 are sealedly connected to the tube sheet body 601. The overall shape of the main rotating brush 804 and the side rotating brush 805 is similar to that of a fan blade. Under the action of the water flow sprayed from the high-pressure nozzle 405, the main rotating rod 802 and the side rotating rod 803 can be rotated on the left and right sides along the circulation grooves opened at the outer ends of the main rotating rod 802 and the side rotating rod 803. The outer brush sheet scrubs the surfaces of the inner sides of the outer heat exchange tube 602 and the inner heat exchange tube 603 that are difficult to rinse, and scrubs the impurities adhering to the surface.

[0026] Working principle of the utility model: the self-cleaning column-type heat exchanger, through the overall shape of the main rotating brush 804 and the side rotating brush 805, is similar to a fan blade. Under the action of the water flow sprayed by the high-pressure nozzle 405, it can rotate on the left and right sides along the circulation grooves opened at the outer ends of the main rotating rod 802 and the side rotating rod 803. The outer brushes are used to wash the surfaces of the outer heat exchange tube 602 and the inner heat exchange tube 603 that are difficult to wash, and the impurities adhering to the surface are cleaned, while the outer surface is washed by the high-pressure water flow sprayed by the high-pressure nozzle 405 to ensure cleanliness, so that the heat exchanger can perform self-cleaning work, reduce the difficulty of internal cleaning, and save time and effort.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-cleaning column heat exchanger, comprising a shell (1), characterized in that: A left pipe box (2) is provided on the left side of the shell (1), a right pipe box (3) is provided on the right side of the shell (1), a flushing assembly (4) is provided on the front side of the outer end of the shell (1), a support (5) is provided at the lower end of the shell (1), a tube sheet assembly (6) is provided on the left side of the outer end of the shell (1), a liquid inlet pipe (7) is provided in the middle of the upper end of the left pipe box (2), and a circulation assembly (8) is provided inside the shell (1); The flushing assembly (4) comprises a pump box (401), a delivery pipe (402), a surrounding pipe (403), a transverse pipe (404) and a high-pressure nozzle (405); a delivery pipe (402) is provided on the left side of the outer end of the pump box (401); a surrounding pipe (403) is provided at the rear end of the delivery pipe (402); a transverse pipe (404) is provided at the outer end of the surrounding pipe (403); and a high-pressure nozzle (405) is provided on the inner side of the transverse pipe (404).

2. A self-cleaning column heat exchanger according to claim 1, characterized in that: The circulation assembly (8) comprises a ring plate (801), a main rotating rod (802), a side rotating rod (803), a main rotating brush (804) and a side rotating brush (805); the main rotating rod (802) is provided in the middle of the right end of the ring plate (801); the side rotating rod (803) is provided on the outer side of the main rotating rod (802); the main rotating brush (804) is provided on the outer end of the main rotating rod (802); and the side rotating brush (805) is provided on the outer side of the side rotating rod (803).

3. A self-cleaning column heat exchanger according to claim 1, characterized in that: The tube sheet assembly (6) comprises a tube sheet body (601), an external heat exchange tube (602) and an internal heat exchange tube (603); the external heat exchange tube (602) is provided on the outside of the front end of the tube sheet body (601), and the internal heat exchange tube (603) is provided on the inside of the external heat exchange tube (602).

4. A self-cleaning column heat exchanger according to claim 1, characterized in that: A water outlet pipe is provided on the left side of the upper end of the shell (1), a water inlet pipe is provided on the right side of the lower end of the shell (1), the left pipe box (2) and the right pipe box (3) are sealed and reinforced with the tube sheet assembly (6), a liquid discharge pipe is provided in the middle of the lower end of the right pipe box (3), and two supports (5) are symmetrically distributed.

5. A self-cleaning column heat exchanger according to claim 1, characterized in that: Water pumping pipes are provided on the left and right sides of the front end of the pump box (401); the delivery pipe (402) and the surrounding pipe (403) are interconnected; two surrounding pipes (403) are symmetrically distributed; twenty transverse pipes (404) are symmetrically distributed; the transverse pipes (404) and the surrounding pipes (403) are interconnected; and twenty high-pressure nozzles (405) are symmetrically distributed.

6. A self-cleaning column heat exchanger according to claim 2, characterized in that: The ring plates (801) are symmetrically distributed in two pieces, the side rotating rods (803) are symmetrically distributed in six pieces, and the side rotating brushes (805) are symmetrically distributed in six pieces.

7. A self-cleaning column heat exchanger according to claim 2, characterized in that: Circulation grooves are provided on the outer sides of the main rotating rod (802) and the side rotating rod (803); the main rotating brush (804) is adapted to the main rotating rod (802); and the side rotating rod (803) is adapted to the side rotating brush (805).

8. A self-cleaning column heat exchanger according to claim 3, characterized in that: Twelve of the outer heat exchange tubes (602) are symmetrically distributed, and six of the inner heat exchange tubes (603) are symmetrically distributed. The outer heat exchange tubes (602) and the inner heat exchange tubes (603) are sealedly connected to the tube sheet body (601).

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