High-temperature tubular heat exchanger

Abstract

The utility model provides a high-temperature shell-and-tube heat exchanger, which relates to the field of high-temperature shell-and-tube heat exchangers and comprises a steel frame base, and a supporting block is arranged at the top of the steel frame base. According to the utility model, the pull rod and the connecting rod are arranged to drive the scraper rings to move up and down so as to scrape scale adhered to the inner walls of the water inlet pipe and the water outlet pipe, the scale scraped in the water inlet pipe falls on the corresponding filter plates through the hollow parts in the scraper rings, and the scale scraped in the water outlet pipe falls on the steel frame base through the water outlet; a worker carries out cleaning, a fastening bolt is arranged, a limiting box is separated from a filtering plate outwards, the filtering plate is pulled out through a through hole, the filtering plate is replaced or cleaned, a filtering net is arranged, passing water is filtered, impurities are blocked, and the impurities in the water are prevented from generating precipitates when flowing in the high-temperature shell-and-tube heat exchanger; the scale of the water inlet pipe and the water outlet pipe connected with the high-temperature shell-and-tube heat exchanger is cleaned, and meanwhile water entering the water inlet pipe is filtered.

Description

Technical Field

[0001] The utility model relates to the technical field of high-temperature tube-in-tube heat exchangers, in particular to a high-temperature tube-in-tube heat exchanger. Background Art

[0002] High temperature tube heat exchanger is mainly composed of shell, tube sheet, heat exchange tube, head, baffle, etc. The required materials can be made of ordinary carbon steel, copper, or stainless steel. It is suitable for various heat exchange equipment in chemical, light industry, metallurgy, pharmaceutical, food, chemical fiber and other industries.

[0003] For example, application number CN207600262U discloses "a shell-and-tube heat exchanger" and specifically discloses: it includes a first head, a first tube sheet, a cylinder, a second tube sheet and a second head, the upper end of the right side of the cylinder is provided with a primary phenol inlet, and the lower end of the left side is provided with a primary phenol outlet, an upper baffle and a lower baffle are also provided in the cylinder, the upper baffle and the lower baffle are located between the primary phenol outlet and the primary phenol inlet, the lower end of the first head is provided with an extract inlet, the middle area of ​​the second head is provided with an extract outlet, a heat exchange tube is provided in the cylinder, the heat exchange tube vertically passes through the upper baffle and the lower baffle, and the opposite ends thereof are connected to the first head and the second head, the upper ends of the first head and the second head are provided with vents, the lower end of the left side of the cylinder The lower end of the second head is provided with a drain port, three rows of spaced-apart tubes are provided in the cylinder, the right ends of the three rows of spaced-apart tubes are connected to the pull rods, and the left ends thereof pass through the upper baffle and the lower baffle and are fixed to the first tube sheet. The first head and the second head are provided with two symmetrically arranged lifting ears. The existing device has a simple structure and is easy to use. It is used in the extraction field and has high heat exchange efficiency and good extraction effect. However, in the above-mentioned technology, the shell and tube heat exchanger is a closed structure. During use, fluid often flows through the connecting tubes at both ends. Long-term use will cause scaling on the inner walls of the inlet and outlet tubes, making it troublesome and inconvenient for the staff to clean. Therefore, the utility model proposes a high-temperature shell and tube heat exchanger to solve the problems existing in the prior art. Utility Model Content

[0004] In view of the above problems, the utility model proposes a high-temperature shell and tube heat exchanger, which scrapes off the scale adhered to the inner walls of the water inlet pipe and the water outlet pipe by setting a pull rod and a connecting rod. The scale scraped off in the water inlet pipe falls onto the corresponding filter plate through the hollow in the scraper ring, and the scale scraped off in the water outlet pipe falls onto the steel frame base through the water outlet. The staff cleans it, sets fastening bolts to make the limit box detach from the filter plate outward, and the filter plate is pulled out through the through hole. The filter plate is replaced or cleaned, and a filter screen is set to filter the water passing through to block impurities, so as to prevent impurities in the water from precipitating when flowing inside the high-temperature shell and tube heat exchanger, thereby cleaning the scale of the water inlet pipe and the water outlet pipe connected to the high-temperature shell and tube heat exchanger and filtering the water entering the water inlet pipe at the same time.

[0005] To achieve the purpose of the utility model, the utility model is implemented through the following technical solutions: a high-temperature shell and tube heat exchanger, including a steel frame base, a support block is arranged on the top of the steel frame base, a placement sleeve is arranged on the top of the support block, a first connecting plate is arranged on the top of the placement sleeve, a high-temperature shell and tube heat exchanger body is arranged on the inner wall of the support block, a limiting sleeve is arranged on the outer wall of the high-temperature shell and tube heat exchanger body, a second connecting plate is arranged on the bottom of the limiting sleeve, double tension bolts are arranged on the inner wall of the second connecting plate, nuts are arranged on the outer wall of the double tension bolts, a water inlet pipe is arranged on the top of the high-temperature shell and tube heat exchanger body, a limiting groove is provided on the inner wall of the water inlet pipe, a pull rod is provided on the inner wall of the limiting groove, a connecting rod is provided on one side of the pull rod, a scraper ring is provided on the other side of the connecting rod, a through hole is provided on one side of the water inlet pipe, and a filter plate is provided on the inner wall of the through hole.

[0006] A filter screen is arranged on the inner wall of the filter plate, a threaded hole is opened on one side of the filter plate, a slot is opened on one side of the water inlet pipe, a limit box is arranged on the inner wall of the slot, fastening bolts are arranged on the inner wall of the limit box, and a water outlet pipe is arranged at the bottom of the high-temperature shell and tube heat exchanger body.

[0007] A further improvement is that: the number of the placement sleeves is two, and the two placement sleeves are nested and connected to the high-temperature shell-and-tube heat exchanger body.

[0008] A further improvement is that: the number of the limiting sleeves is four, and the four limiting sleeves are all nested and connected to the high-temperature shell and tube heat exchanger body.

[0009] A further improvement is that the second connecting plate and the first connecting plate are arranged parallel to each other, and the double tension bolts are threadedly connected to the second connecting plate and the first connecting plate.

[0010] A further improvement is that the pull rod and the connecting rod are connected by welding, and the pull rod, the connecting rod and the limiting groove are movably connected.

[0011] A further improvement is that the connection rod and the scraper ring are fixedly connected, the outer wall of the scraper ring is tightly attached to the inner wall of the water inlet pipe, and the scraper ring is configured as a rubber scraper ring.

[0012] A further improvement is that the filter plate and the through hole are movably connected, and the filter plate and the limit box are nested.

[0013] The beneficial effects of the utility model are as follows: the utility model arranges a pull rod, and the connecting rod drives each scraper ring to move up and down to scrape off the scale adhered to the inner wall of the water inlet pipe and the water outlet pipe. The scale scraped in the water inlet pipe falls onto the corresponding filter plate through the hollow in the scraper ring, and the scale scraped in the water outlet pipe falls onto the steel frame base through the water outlet, and is cleaned by the staff. Fastening bolts are arranged to make the limit box detach from the filter plate outward, and the filter plate is pulled out through the through hole, and the filter plate is replaced or cleaned. A filter screen is arranged to filter the water passing through to block impurities, so as to prevent impurities in the water from precipitating when flowing inside the high-temperature shell and tube heat exchanger, thereby realizing the cleaning of scale on the water inlet pipe and the water outlet pipe connected to the high-temperature shell and tube heat exchanger, and filtering the water entering the water inlet pipe at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the front view structure of the water inlet pipe of the utility model;

[0016] Figure 3 This is a schematic diagram of the scraper ring structure from a top view of the utility model;

[0017] Figure 4 This is a schematic diagram of the three-dimensional structure of the scraper ring of the utility model;

[0018] Figure 5 For this utility model Figure 1 Enlarged view of point A in the middle.

[0019] In the figure: 1. Steel frame base; 2. Support block; 3. Placement sleeve; 4. First connecting plate; 5. High-temperature shell and tube heat exchanger body; 6. Limit sleeve; 7. Second connecting plate; 8. Double tension bolts; 9. Nuts; 10. Water inlet pipe; 11. Limit groove; 12. Pull rod; 13. Connecting rod; 14. Scraper ring; 15. Through hole; 16. Filter plate; 17. Filter screen; 18. Threaded hole; 19. Slot; 20. Limit box; 21. Fastening bolts; 22. Water outlet pipe. DETAILED DESCRIPTION

[0020] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0021] according to Figure 1-5As shown, this embodiment proposes a high-temperature shell-and-tube heat exchanger, including a steel frame base 1, a support block 2 is arranged on the top of the steel frame base 1, a placement sleeve 3 is arranged on the top of the support block 2, a first connecting plate 4 is arranged on the top of the placement sleeve 3, a high-temperature shell-and-tube heat exchanger body 5 is arranged on the inner wall of the support block 2, a limiting sleeve 6 is arranged on the outer wall of the high-temperature shell-and-tube heat exchanger body 5, a second connecting plate 7 is arranged at the bottom of the limiting sleeve 6, a double tension bolt 8 is arranged on the inner wall of the second connecting plate 7, a nut 9 is arranged on the outer wall of the double tension bolt 8, a water inlet pipe 10 is arranged on the top of the high-temperature shell-and-tube heat exchanger body 5, a limiting groove 11 is provided on the inner wall of the water inlet pipe 10, a pull rod 12 is provided on the inner wall of the limiting groove 11, a connecting rod 13 is provided on one side of the pull rod 12, a scraper ring 14 is provided on the other side of the connecting rod 13, a through hole 15 is provided on one side of the water inlet pipe 10, and a filter plate 16 is provided on the inner wall of the through hole 15.

[0022] A filter screen 17 is arranged on the inner wall of the filter plate 16, a threaded hole 18 is provided on one side of the filter plate 16, a slot 19 is provided on one side of the water inlet pipe 10, a limit box 20 is arranged on the inner wall of the slot 19, a fastening bolt 21 is arranged on the inner wall of the limit box 20, and a water outlet pipe 22 is arranged on the bottom of the high-temperature tube heat exchanger body 5. When the device is in use, when the high-temperature tube heat exchanger body 5 has been used for a period of time and the inner walls of the water inlet pipe 10 and the water outlet pipe 22 need to be cleaned, the staff manually pulls each pull rod 12 up and down to make the pull rod 12 drive the connecting rod 13 to move up and down in the limit groove 11, so that the connecting rod 13 drives the scraper ring 14 to move up and down, and the outer wall of each scraper ring 14 is tightly attached to the inner wall of the corresponding water inlet pipe 10 and the water outlet pipe 22, so that each scraper ring 14 moves up and down, thereby each scraper ring 14 moves the water inlet pipe 10 and the water outlet pipe 2 2, the scale adhered to the inner wall of the water inlet pipe 10 is scraped off, so that the scale scraped off in the water inlet pipe 10 falls on the corresponding filter plate 16 through the hollow inside the scraper ring 14, and the scale scraped off in the water outlet pipe 22 falls on the steel frame base 1 through the water outlet. Then, after the staff cleans the scale on the steel frame base 1, they manually pull out each fastening bolt 21 from the corresponding threaded hole 18, and then separate the limit box 20 from the filter plate 16 outward, and manually pull out the filter plate 16 connected to the water inlet pipe 10 through the through hole 15, and replace or clean the filter plate 16. The filter screen 17 is arranged in the filter plate 16, so that it is convenient to filter the passing water to block impurities, and prevent the impurities in the water from precipitating when flowing inside the high-temperature tube-and-tube heat exchanger, thereby realizing the convenience of cleaning the scale of the water inlet pipe 10 and the water outlet pipe 22 connected to the high-temperature tube-and-tube heat exchanger, and filtering the water entering the water inlet pipe 10 at the same time.

[0023] There are two placement sleeves 3 , and the two placement sleeves 3 are nested and connected to the high-temperature shell-and-tube heat exchanger body 5 . The staff places the high-temperature shell-and-tube heat exchanger body 5 on the two placement sleeves 3 .

[0024] There are four limit sleeves 6, and the four limit sleeves 6 are nested and connected to the high-temperature shell and tube heat exchanger body 5. By putting each limit sleeve 6 on the outer wall of the high-temperature shell and tube heat exchanger body 5 connected to the corresponding placement sleeve 3, the second connecting plate 7 connected to each limit sleeve 6 is tightly attached to the first connecting plate 4.

[0025] The second connecting plate 7 and the first connecting plate 4 are arranged parallel to each other, and the double-tension bolts 8 are threadedly connected to the second connecting plate 7 and the first connecting plate 4. The double-tension bolts 8 are manually passed through the first connecting plate 4 and the second connecting plate 7, and the nuts 9 are screwed on the two ends of the double-tension bolts 8 to fix the limiting sleeve 6 on the placement sleeve 3.

[0026] The pull rod 12 and the connecting rod 13 are welded together, and the pull rod 12, the connecting rod 13 and the limiting groove 11 are movably connected. The operator manually pulls each pull rod 12 to reciprocate up and down, so that the pull rod 12 drives the connecting rod 13 to move up and down in the limiting groove 11.

[0027] The connecting rod 13 and the scraper ring 14 are fixedly connected, and the outer wall of the scraper ring 14 is tightly attached to the inner wall of the water inlet pipe 10. The scraper ring 14 is configured as a rubber scraper ring. When each scraper ring 14 moves up and down, each scraper ring 14 scrapes off the scale adhered to the inner wall of the water inlet pipe 10 and the water outlet pipe 22.

[0028] The filter plate 16 and the through hole 15 are movably connected, and the filter plate 16 and the limit box 20 are nested. Each fastening bolt 21 is manually pulled out of the corresponding threaded hole 18, and then the limit box 20 is outwardly separated from the filter plate 16, and the filter plate 16 connected to the water inlet pipe 10 is manually pulled out through the through hole 15.

[0029] When the high-temperature tube heat exchanger is in use, the staff places the high-temperature tube heat exchanger body 5 on the two placement sleeves 3, and then puts each limiting sleeve 6 on the outer wall of the high-temperature tube heat exchanger body 5 connected to the corresponding placement sleeve 3, so that the second connecting plate 7 connected to each limiting sleeve 6 is tightly against the first connecting plate 4, and manually passes the double tension bolts 8 through the first connecting plate 4 and the second connecting plate 7, and screws the nuts 9 on the two ends of the double tension bolts 8 to fix the limiting sleeve 6 on the placement sleeve 3, thereby fixing the high-temperature tube heat exchanger body 5 in the placement sleeve 3 connected to the steel frame base 1 through the support block 2. Similarly, to disassemble the high-temperature tube heat exchanger body 5, it is only necessary to turn out each double tension bolt 8 and disengage from the first connecting plate 4 and the second connecting plate 7, so that the limiting sleeve 6 and the placement sleeve 3 are separated, and the high-temperature tube heat exchanger body 5 is disassembled, thereby facilitating fixed installation and disassembly. When the high-temperature tube heat exchanger body 5 has been used for a period of time, when the inner walls of the water inlet pipe 10 and the water outlet pipe 22 need to be cleaned, the staff manually pulls each pull rod 12 The pull rod 12 drives the connecting rod 13 to move up and down in the limit groove 11 by reciprocating motion, so that the connecting rod 13 drives the scraper ring 14 to move up and down, and the outer wall of each scraper ring 14 is closely attached to the inner wall of the corresponding water inlet pipe 10 and the water outlet pipe 22, so that each scraper ring 14 moves up and down, so that each scraper ring 14 scrapes off the scale adhered to the inner wall of the water inlet pipe 10 and the water outlet pipe 22, so that the scale scraped off in the water inlet pipe 10 falls on the corresponding filter plate 1 through the hollow inside the scraper ring 14 6, and at the same time, the scale scraped off in the water outlet pipe 22 falls onto the steel frame base 1 through the water outlet. Then, after the staff cleans the scale on the steel frame base 1, they manually pull out each fastening bolt 21 from the corresponding threaded hole 18, and then separate the limit box 20 from the filter plate 16 outward, and manually pull out the filter plate 16 connected to the water inlet pipe 10 through the through hole 15, and replace or clean the filter plate 16. The filter screen 17 is arranged in the filter plate 16 to facilitate filtering the passing water to block impurities.

[0030] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A high temperature tube heat exchanger, characterized in that: The invention comprises a steel frame base (1), a support block (2) is arranged on the top of the steel frame base (1), a placement sleeve (3) is arranged on the top of the support block (2), a first connecting plate (4) is arranged on the top of the placement sleeve (3), a high-temperature tube-in-tube heat exchanger body (5) is arranged on the inner wall of the support block (2), a limiting sleeve (6) is arranged on the outer wall of the high-temperature tube-in-tube heat exchanger body (5), a second connecting plate (7) is arranged on the bottom of the limiting sleeve (6), a double tension bolt (8) is arranged on the inner wall of the second connecting plate (7), and the double tension bolt (8) is arranged on the inner wall of the second connecting plate (7). A nut (9) is arranged on the outer wall of the tension bolt (8); a water inlet pipe (10) is arranged on the top of the high-temperature shell-and-tube heat exchanger body (5); a limiting groove (11) is arranged on the inner wall of the water inlet pipe (10); a pull rod (12) is arranged on the inner wall of the limiting groove (11); a connecting rod (13) is arranged on one side of the pull rod (12); a scraper ring (14) is arranged on the other side of the connecting rod (13); a through hole (15) is arranged on one side of the water inlet pipe (10); a filter plate (16) is arranged on the inner wall of the through hole (15); The inner wall of the filter plate (16) is provided with a filter screen (17), one side of the filter plate (16) is provided with a threaded hole (18), one side of the water inlet pipe (10) is provided with a slot (19), the inner wall of the slot (19) is provided with a limit box (20), the inner wall of the limit box (20) is provided with a fastening bolt (21), and the bottom of the high-temperature shell-and-tube heat exchanger body (5) is provided with a water outlet pipe (22).

2. A high temperature tube heat exchanger according to claim 1, characterized in that: The number of the placement sleeves (3) is two, and the two placement sleeves (3) are nestedly connected to the high-temperature shell-and-tube heat exchanger body (5).

3. A high temperature tube heat exchanger according to claim 1, characterized in that: The number of the limiting sleeves (6) is four, and the four limiting sleeves (6) are all nestedly connected to the high-temperature shell-and-tube heat exchanger body (5).

4. A high temperature tube heat exchanger according to claim 1, characterized in that: The second connecting plate (7) and the first connecting plate (4) are arranged parallel to each other, and the double tension bolts (8) are threadedly connected to the second connecting plate (7) and the first connecting plate (4).

5. A high temperature shell and tube heat exchanger according to claim 1, characterized in that: The pull rod (12) and the connecting rod (13) are connected by welding, and the pull rod (12), the connecting rod (13) and the limiting groove (11) are movably connected.

6. A high temperature tube heat exchanger according to claim 1, characterized in that: The connection rod (13) and the scraper ring (14) are fixedly connected, the outer wall of the scraper ring (14) is tightly attached to the inner wall of the water inlet pipe (10), and the scraper ring (14) is configured as a rubber scraper ring.

7. A high temperature tube heat exchanger according to claim 1, characterized in that: The filter plate (16) and the through hole (15) are movably connected, and the filter plate (16) and the limit box (20) are nestedly connected.

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