Stainless steel heat exchanger

Abstract

The invention discloses a stainless steel heat exchanger, and relates to the technical field of heat exchangers, the stainless steel heat exchanger comprises a box body, a sliding mechanism used for removing attached scale is arranged in the box body, a rotating mechanism used for accelerating the scale to fall off is further arranged in the box body, and a collecting mechanism used for concentrating the scale is arranged on the surface of the rotating mechanism; a sliding mechanism is arranged in the box body, a limiting mechanism used for controlling the sliding mechanism to move is arranged at the top of the box body, the sliding mechanism comprises heat exchange pipes vertically and fixedly connected to the interior of the box body, the two ends of each heat exchange pipe extend to the exterior of the box body, and a circular moving ring is slidably connected to the exterior of each heat exchange pipe in a sleeving mode. The movable ring slides down along the heat exchange tube under the action of gravity, scale is scraped off through the elastic plate in the sliding-down process, cleaning of the scale on the surface of the heat exchange tube can be completed on the premise that equipment is not disassembled, the maintenance process is greatly simplified, and manpower and time cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchangers, and particularly to a stainless steel heat exchanger. Background Art

[0002] With the increasing demand for efficient heat transfer equipment in industrial production and daily life, stainless steel heat exchangers, as a kind of efficient and durable heat transfer equipment, have been widely used in many industries such as chemistry, petroleum, and food.

[0003] In a steam heat exchanger, high-temperature steam releases latent heat in the pipeline, and the external fluid absorbs heat and its temperature rises. However, during the long-term use of the steam heat exchanger, problems such as scaling and corrosion may be encountered. Especially in the case where the chemical properties of the internal medium of the heat exchanger are relatively complex or the environment is relatively harsh, these problems are more prominent, affecting the performance and service life of the heat exchanger.

[0004] Generally, it is necessary to regularly disassemble the outer shell of the heat exchanger to remove the water scale attached to the heat exchange tubes. Disassembling and reassembling the heat exchanger not only requires a large amount of human and material resources, but also, since the equipment is usually heavy and complex in structure, it is easy to damage the heat exchanger components, resulting in a further increase in the cost of maintenance or replacement.

[0005] Therefore, the present invention proposes a stainless steel heat exchanger to make up for and improve the deficiencies of the existing technology. Summary of the Invention

[0006] In view of the above problems, the invention provides a stainless steel heat exchanger, which can effectively solve the problem of time-consuming and laborious traditional disassembly and cleaning in the existing technology. To achieve the above object, the embodiments of the present application provide the following technical solutions: The present invention discloses a stainless steel heat exchanger, including a box body. A sliding mechanism for removing attached water scale is arranged inside the box body. A rotating mechanism for accelerating the shedding of water scale is also arranged inside the box body. A collecting mechanism for concentrating water scale is arranged on the surface of the rotating mechanism. A limiting mechanism for controlling the movement of the sliding mechanism is arranged on the top of the box body; The sliding mechanism includes heat exchange tubes vertically and fixedly connected inside the box body, and both ends of the heat exchange tubes extend outside the box body. A circular moving ring is slidably sleeved outside each heat exchange tube, and a plurality of the moving rings are fixedly connected to each other through connecting rods.

[0007] Furthermore, a buoyancy block is fixedly connected to the side of the moving ring. A connecting rod on the side of the buoyancy block is fixedly connected to a tension spring. One end of the tension spring away from the buoyancy block is fixedly connected to the inner bottom surface of the box body. An elastic plate is fixedly connected in a ring shape inside the moving ring, and one end of each elastic plate away from the moving ring slidably abuts against the outer wall of the heat exchange tube.

[0008] Further, the rotation mechanism includes a mounting rod fixedly connected to the inner wall of the box body. A blade is rotatably connected to the outside of the mounting rod. A transmission gear is also rotatably sleeved on the outside of the mounting rod, and the side of the transmission gear is fixedly connected to the bottom of the blade. A rack for driving the transmission gear to rotate is fixedly connected to the side of the connecting rod.

[0009] Further, a cavity is formed on the surface of the transmission gear. A clockwork spring is arranged inside the cavity. One end of the clockwork spring is fixedly connected to the transmission gear, and the other end of the clockwork spring is fixedly connected to the mounting rod.

[0010] Further, the collection mechanism includes a mounting plate fixedly connected to the top of the mounting rod. U-shaped grooves are symmetrically formed at both ends of the mounting plate. At one end of each U-shaped groove away from the mounting plate, a mounting shaft is fixedly connected. A U-shaped frame is rotatably connected to the outside of the mounting shaft. A filter screen for collecting scale is fixedly connected between the U-shaped frame and the U-shaped groove.

[0011] Further, a torsion spring is sleeved on the outside of the mounting shaft. One end of the torsion spring is fixedly connected to the outside of the mounting shaft, and the other end of the torsion spring is fixedly connected to the side of the U-shaped frame.

[0012] Further, the limiting mechanism includes a rotating rod rotatably connected to the outside of the box body. The bottom of the rotating rod penetrates through a through hole of the box body, and the bottom of the rotating rod extends into the box body. A limiting block for blocking the connecting rod is fixedly connected to the bottom of the rotating rod. An inclined surface is formed at the bottom of the limiting block.

[0013] Further, a housing is also fixedly connected to the outside of the box body, and the top of the rotating rod is wrapped inside the housing. A return spring is fixedly connected to the side of the rotating rod. One end of the return spring away from the rotating rod is fixedly connected to the inner wall of the housing. A vertical rod is rotatably connected inside the housing. A convex block is fixedly connected to the bottom of the vertical rod, and the convex block slides against the side of the rotating rod.

[0014] Further, a first bevel gear is fixedly connected to the top of the vertical rod. A transmission shaft is horizontally rotatably connected to the housing. A second bevel gear is fixedly connected to the outside of the transmission shaft, and the second bevel gear meshes with the first bevel gear. A handwheel is fixedly connected to one end of the transmission shaft.

[0015] Further, a bracket is fixedly connected to the outside of the box body. A water inlet end is fixedly connected to one side of the box body. A water outlet end is fixedly connected to the other side of the box body, and the water outlet end is higher than the water inlet end.

[0016] Beneficial effects: 1. This device is equipped with a sliding mechanism. When it is necessary to clean the water scale, the moving ring slides down along the heat exchange tube under the action of gravity. During the sliding process, the water scale is scraped off by the elastic plate. The cleaning of the water scale on the surface of the heat exchange tube can be completed without disassembling the equipment, greatly simplifying the maintenance process and reducing the labor and time costs.

[0017] 2. This device is equipped with a rotating mechanism. After scraping the water scale, the blades agitate the water body in the box. The flow generated by the rotation of the blades helps to further disperse the scraped water scale particles into the water and carry them out of the system with the water flow, reducing the possibility of redeposition and keeping the heat exchange surface clean.

[0018] 3. This device is equipped with a collection mechanism. When the blades rotate, the water scale is agitated by the filter screen. After the blades stop rotating, the filter screen folds in half to wrap the water scale inside the filter screen. The filter screen not only plays a role in agitation but also can effectively capture the agitated water scale particles, preventing them from redepositing or floating in the fluid and ensuring that the water scale can be centrally processed.

[0019] 4. This device is equipped with buoyancy blocks. When filling the box with water, the buoyancy blocks can drive the moving ring to move to the top, realizing the automatic reset of the moving ring without manual intervention, improving the operation convenience and efficiency, ensuring that the starting points before and after each cleaning are the same, helping to keep the effect of scraping the water scale stable, and preventing incomplete cleaning caused by position deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a three-dimensional structure diagram of the first perspective of the present invention.

[0022] Figure 2 It is a three-dimensional structure diagram of the sliding mechanism in the present invention.

[0023] Figure 3 It is a three-dimensional structure diagram of the limiting mechanism in the present invention.

[0024] Figure 4 It is a three-dimensional structure diagram of the rotating mechanism in the present invention.

[0025] Figure 5 It is an exploded view of the rotating mechanism in the present invention.

[0026] Figure 6This is a longitudinal sectional view of the outer shell in the present invention.

[0027] Figure 7 This is an exploded view of the collection mechanism in the present invention.

[0028] Figure 8 This is a sectional view of the moving ring in the present invention.

[0029] The reference numerals in the figure respectively represent: 10, box body; 20, sliding mechanism; 201, moving ring; 202, connecting rod; 203, buoyancy block; 204, tension spring; 205, heat exchange tube; 30, rotating mechanism; 301, mounting rod; 302, blade; 303, transmission gear; 304, rack; 305, cavity; 306, clockwork spring; 40, collection mechanism; 401, mounting plate; 402, U-shaped frame; 403, mounting shaft; 404, torsion spring; 405, filter screen; 406, U-shaped groove; 50, limiting mechanism; 501, rotating rod; 502, limiting block; 503, inclined surface; 504, vertical rod; 505, convex block; 506, outer shell; 507, first bevel gear; 508, second bevel gear; 509, transmission shaft; 510, handwheel; 511, return spring; 60, elastic plate; 70, water inlet end; 80, water outlet end; 90, bracket. Detailed implementation manners

[0030] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] The following further describes the present invention with reference to the embodiments.

[0032] Refer to Figures 1 to 8 , a stainless steel heat exchanger of this embodiment includes a box body 10, a sliding mechanism 20 for removing attached water scale is arranged inside the box body 10, a rotating mechanism 30 for accelerating the shedding of water scale is also arranged inside the box body 10, a collection mechanism 40 for concentrating water scale is arranged on the surface of the rotating mechanism 30, and a limiting mechanism 50 for controlling the movement of the sliding mechanism 20 is arranged on the top of the box body 10.

[0033] The sliding mechanism 20 includes heat exchange tubes 205 vertically and fixedly connected inside the box body 10, and both ends of the heat exchange tubes 205 extend outside the box body 10. A circular moving ring 201 is slidably sleeved outside each heat exchange tube 205, and a plurality of moving rings 201 are fixedly connected to each other through connecting rods 202.

[0034] A buoyancy block 203 is fixedly connected to the side of the moving ring 201. A connecting rod on the side of the buoyancy block 203 is fixedly connected to a tension spring 204. One end of the tension spring 204 away from the buoyancy block 203 is fixedly connected to the inner bottom surface of the box body 10. An elastic plate 60 is fixedly connected in a ring shape inside the moving ring 201. One end of each elastic plate 60 away from the moving ring 201 slides and abuts against the outer wall of the heat exchange tube 205.

[0035] A support 90 is fixedly connected to the outside of the box body 10. A water inlet end 70 is fixedly connected to one side of the box body 10. A water outlet end 80 is fixedly connected to the other side of the box body 10, and the water outlet end 80 is higher than the water inlet end 70.

[0036] During specific operation, when the heat exchanger is in use, the water flow that needs to be heated enters the box body 10 from the water inlet end 70 and contacts the heat exchange tube 205 for heating. The heated water is discharged from the water outlet end 80. When the scale on the surface of the heat exchange tube 205 needs to be cleaned, first drain the water inside the box body 10. At this time, the buoyancy block 203 loses the buoyancy of water. Then, the restriction on the moving ring 201 is released through the limiting mechanism 50. Under the pulling force of the tension spring 204, the moving ring 201 slides down along the surface of the heat exchange tube 205. During the sliding process, the elastic plate 60 scrapes off the scale attached to the surface of the heat exchange tube 205, and the cleaning of the scale on the surface of the heat exchange tube 205 can be completed without disassembling the equipment, greatly simplifying the maintenance process and reducing the labor and time costs.

[0037] The rotating mechanism 30 includes a mounting rod 301 fixedly connected to the inner wall of the box body 10. A blade 302 is rotatably connected to the outside of the mounting rod 301. A transmission gear 303 is also rotatably sleeved on the outside of the mounting rod 301, and the side of the transmission gear 303 is fixedly connected to the bottom of the blade 302. A rack 304 for driving the transmission gear to rotate is fixedly connected to the side of the connecting rod 202.

[0038] A cavity 305 is formed on the surface of the transmission gear 303. A clockwork spring 306 is arranged inside the cavity 305. One end of the clockwork spring 306 is fixedly connected to the transmission gear 303, and the other end of the clockwork spring 306 is fixedly connected to the mounting rod 301.

[0039] During specific operation, when the moving ring 201 slides down, the moving ring 201 drives the rack 304 to engage with the transmission gear 303 through the connecting rod 202, and drives the blade 302 to rotate on the mounting rod 301 through the transmission gear 303. The rotating blade 302 breaks up the large pieces of scale scraped off from the heat exchange tube 205, so as to facilitate the discharge of the scale from the pipeline out of the box body 10.

[0040] After filling the water tank 10 with water, the buoyancy block 203 drives the moving ring 201 to move upward. During this process, the rack 304 drives the transmission gear 303 to rotate in the reverse direction. When the transmission gear 303 rotates in the reverse direction, the clockwork spring 306 is wound up. When the rack 304 disengages from the transmission gear 303, the wound-up clockwork spring 306 drives the blade 302 to rotate and stir the water in the water tank 10, which helps to further disperse the scraped scale particles into the water and carry them out of the system with the water flow, reducing the possibility of redeposition and keeping the heat exchange surface clean.

[0041] The collection mechanism 40 includes a mounting plate 401 fixedly connected to the top of the mounting rod 301. U-shaped grooves 406 are symmetrically formed at both ends of the mounting plate 401. An installation shaft 403 is fixedly connected to one end of each U-shaped groove 406 away from the mounting plate 401. A U-shaped frame 402 is rotatably connected to the outside of the installation shaft 403. A filter screen 405 for collecting scale is fixedly connected between the U-shaped frame 402 and the U-shaped groove 406.

[0042] A torsion spring 404 is sleeved on the outside of the installation shaft 403. One end of the torsion spring 404 is fixedly connected to the outside of the installation shaft 403, and the other end of the torsion spring 404 is fixedly connected to the side surface of the U-shaped frame 402.

[0043] During specific operation, when the blade 302 rotates, the U-shaped frame 402 unfolds under the action of centrifugal force, so that the filter screen 405 unfolds. The unfolded filter screen 405 collects the scale in the water. When the blade 302 stops rotating, the torsion spring 404 drives the U-shaped frame 402 to rotate to the side of the U-shaped groove 406, thereby driving the filter screen 405 to wrap the collected scale. The filter screen 405 not only plays a stirring role, but also can effectively capture the stirred scale particles, preventing them from redepositing or floating in the fluid, and ensuring that the scale can be centrally processed.

[0044] The limiting mechanism 50 includes a rotating rod 501 rotatably connected to the outside of the water tank 10. The bottom of the rotating rod 501 penetrates through the through hole of the water tank 10, and the bottom of the rotating rod 501 extends into the water tank 10. A limiting block 502 for blocking the connecting rod 202 is fixedly connected to the bottom of the rotating rod 501. An inclined surface 503 is formed at the bottom of the limiting block 502.

[0045] An outer shell 506 is also fixedly connected to the outside of the water tank 10, and the outer shell 506 wraps the top of the rotating rod 501 inside. A return spring 511 is fixedly connected to the side surface of the rotating rod 501. One end of the return spring 511 away from the rotating rod 501 is fixedly connected to the inner wall of the outer shell 506. A vertical rod 504 is rotatably connected to the inside of the outer shell 506. A convex block 505 is fixedly connected to the bottom of the vertical rod 504, and the convex block 505 is in sliding contact with the side surface of the rotating rod 501.

[0046] A first bevel gear 507 is fixedly connected to the top of the vertical rod 504. A transmission shaft 509 is horizontally rotatably connected to the housing 506. A second bevel gear 508 is fixedly connected to the outside of the transmission shaft 509, and the second bevel gear 508 meshes with the first bevel gear 507. A handwheel 510 is fixedly connected to one end of the transmission shaft 509.

[0047] During specific operation, when scale needs to be cleaned, first drain the water in the box body 10, and then rotate the handwheel 510 to drive the transmission shaft 509 to rotate. The first bevel gear 507 and the second bevel gear 508 are used to drive the vertical rod 504 to rotate synchronously. The rotating vertical rod 504 drives the convex block 505 to rotate synchronously. When rotating, the convex block 505 pushes the rotating rod 501 to rotate. The rotating rotating rod 501 compresses and stores energy in the return spring 511. At the same time, the limiting block 502 at the bottom of the rotating rod 501 disengages from the bottom of the connecting rod 202. When the convex block 505 disengages from the side of the rotating rod 501, the return spring 511 pushes the rotating rod 501 back to its original position. Due to the absence of the blocking of the limiting block 502, under the action of the tension spring 204 and gravity, the moving ring 201 is driven to move along the surface of the heat exchange tube 205, thereby scraping off the scale.

[0048] After cleaning, water is injected into the box body 10. The buoyancy block 203 rises synchronously with the water level in the box body 10, driving the moving ring 201 to move upward. The connecting rod 202 on the side of the moving ring 201 moves along the inclined surface 503 of the limiting block 502 to the upper side of the limiting block 502. The limiting block 502 is used to re-limit the connecting rod 202 and the moving ring 201 at the top of the box body 10. When water is injected into the box body 10, the buoyancy block 203 can drive the moving ring 201 to move to the top, realizing the automatic reset of the moving ring without manual intervention, improving the operation convenience and efficiency, ensuring that the starting points before and after each cleaning are the same, helping to keep the scale scraping effect stable, and preventing incomplete cleaning caused by position deviation.

[0049] Working principle: When cleaning the scale, first drain the water in the box body 10, and then the sliding mechanism 20 is released through the limiting mechanism 50 to fall and scrape the scale on the surface of the heat exchange tube 205. At the same time, the falling large pieces of scale are broken by the rotating mechanism 30, facilitating the discharge of the scale from the pipeline into the box body 10. After cleaning, water is injected into the box body 10. The sliding mechanism 20 rises due to buoyancy, driving the rotating mechanism 30 to stir the scale in the water again. At the same time, the collecting mechanism 40 collects the scale in the water. After stopping rotation, the collecting mechanism 40 wraps the collected scale to prevent it from redepositing or floating in the fluid, ensuring that the scale can be centrally processed. The rising sliding mechanism 20 is restricted by the limiting mechanism 50 at the top of the box body 10 for the next scale cleaning.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A stainless steel heat exchanger, characterized in that: It comprises a box (10), wherein a sliding mechanism (20) for removing attached scale is arranged inside the box (10), a rotating mechanism (30) for accelerating the shedding of scale is also arranged inside the box (10), a collecting mechanism (40) for collecting scale is arranged on the surface of the rotating mechanism (30), and a limiting mechanism (50) for controlling the movement of the sliding mechanism (20) is arranged on the top of the box (10); The sliding mechanism (20) comprises a heat exchange tube (205) vertically fixedly connected to the inside of the box (10), and both ends of the heat exchange tube (205) extend to the outside of the box (10), and each heat exchange tube (205) is slidably sleeved with a circular moving ring (201) on the outside, and a plurality of the moving rings (201) are fixedly connected to each other via a connecting rod (202).

2. A stainless steel heat exchanger according to claim 1, characterized in that: A buoyancy block (203) is fixedly connected to the side of the movable ring (201), a tension spring (204) is fixedly connected to the connecting rod on the side of the buoyancy block (203), one end of the tension spring (204) away from the buoyancy block (203) is fixedly connected to the inner bottom surface of the box body (10), and an elastic plate (60) is fixedly connected in a ring shape inside the movable ring (201), and one end of each elastic plate (60) away from the movable ring (201) is in sliding contact with the outer wall of the heat exchange tube (205).

3. The stainless steel heat exchanger according to claim 1, characterized in that: The rotating mechanism (30) comprises a mounting rod (301) fixedly connected to the inner wall of the box body (10), the mounting rod (301) being rotatably connected to the outside of the mounting rod (301), a transmission gear (303) being rotatably sleeved on the outside of the mounting rod (301), and a side surface of the transmission gear (303) being fixedly connected to the bottom of the blade (302), and a side surface of the connecting rod (202) being fixedly connected to a rack (304) for driving the transmission gear to rotate.

4. A stainless steel heat exchanger according to claim 3, characterized in that: A cavity (305) is provided on the surface of the transmission gear (303), a spring (306) is arranged inside the cavity (305), one end of the spring (306) is fixedly connected to the transmission gear (303), and the other end of the spring (306) is fixedly connected to the mounting rod (301).

5. The stainless steel heat exchanger according to claim 1, characterized in that: The collecting mechanism (40) comprises a mounting plate (401) fixedly connected to the top of the mounting rod (301), U-shaped grooves (406) are symmetrically provided at both ends of the mounting plate (401), one end of each of the U-shaped grooves (406) away from the mounting plate (401) is fixedly connected to a mounting shaft (403), the mounting shaft (403) is rotatably connected to a U-shaped frame (402) on the outside, and a filter screen (405) for collecting scale is fixedly connected between the U-shaped frame (402) and the U-shaped groove (406).

6. A stainless steel heat exchanger according to claim 5, characterized in that: A torsion spring (404) is sleeved on the outside of the installation shaft (403), one end of the torsion spring (404) is fixedly connected to the outside of the installation shaft (403), and the other end of the torsion spring (404) is fixedly connected to the side of the U-shaped frame (402).

7. The stainless steel heat exchanger according to claim 1, characterized in that: The limiting mechanism (50) comprises a rotating rod (501) rotatably connected to the outside of the box body (10); the bottom of the rotating rod (501) passes through the through hole of the box body (10), and the bottom of the rotating rod (501) extends into the inside of the box body (10); the bottom of the rotating rod (501) is fixedly connected to a limiting block (502) for blocking the connecting rod (202); and the bottom of the limiting block (502) is provided with an inclined surface (503).

8. The stainless steel heat exchanger according to claim 7, characterized in that: The housing (10) is also fixedly connected to an outer shell (506) on the outside, and the outer shell (506) wraps the top of the rotating rod (501) inside. A return spring (511) is fixedly connected to the side of the rotating rod (501), and one end of the return spring (511) away from the rotating rod (501) is fixedly connected to the inner wall of the outer shell (506). A vertical rod (504) is rotatably connected to the inside of the outer shell (506), and a protrusion (505) is fixedly connected to the bottom of the vertical rod (504), and the protrusion (505) is in sliding contact with the side of the rotating rod (501).

9. A stainless steel heat exchanger according to claim 8, characterized in that: The top of the vertical rod (504) is fixedly connected to a first bevel gear (507); the housing (506) is horizontally rotatably connected to a transmission shaft (509); the outside of the transmission shaft (509) is fixedly connected to a second bevel gear (508), and the second bevel gear (508) is meshed with the first bevel gear (507); one end of the transmission shaft (509) is fixedly connected to a hand wheel (510).

10. The stainless steel heat exchanger according to claim 1, characterized in that: The box body (10) is fixedly connected to a bracket (90) on the outside, the box body (10) is fixedly connected to a water inlet end (70) on one side, and the box body (10) is fixedly connected to a water outlet end (80) on the other side, and the water outlet end (80) is higher than the water inlet end (70).

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