A heat exchanger with replaceable heat exchange tubes

Abstract

A heat exchanger with replaceable heat exchange tubes includes a heat exchanger and caps. The front and rear sides of the heat exchanger are respectively connected to the outer circular openings of two caps by multiple bolts. Sealing plates are fixed to the front and rear sides of the inner wall of the heat exchanger. Heat pipe structures are connected to the outer circular openings of the outer walls of both sealing plates. A collar is connected to the outer wall of the heat pipe structure, allowing the outer wall of the collar to insert into the outer circular opening of the sealing plate. Next, two washers are respectively placed on the front and rear sides of the outer wall of the heat exchange tube, making the outer walls of the washers fit against the outer walls of the sealing plates. Then, a hand contacts a protrusion, and a ring is placed on the end of the heat exchange tube. The protrusion is then pushed, causing the ring to rotate inward through the threads on the outer wall of the heat exchange tube, thus pressing the washers against the outer wall of the sealing plates. This completes the replacement of the heat exchange tube without replacing the entire heat exchanger, reducing replacement costs and extending the overall service life of the heat exchanger.

Description

Technical Field

[0001] This utility model relates to replaceable heat exchange tubes for heat exchangers, and more particularly to a replaceable heat exchange tube for a heat exchanger. Background Technology

[0002] Heat exchange tubes are one of the components of a heat exchanger, placed inside the shell, and used for the exchange of heat between two media. It has a lot High thermal conductivity and good isothermal properties It is a device that can quickly transfer heat energy from one point to another with almost no heat loss, so it is called a heat transfer superconductor, and its thermal conductivity is thousands of times that of copper.

[0003] Because the existing heat exchanger manufacturing process uses welding or tube expansion to connect the heat exchanger tubes, the composition of industrial wastewater in environmental protection projects is very complex. In particular, changes in the production processes of pharmaceuticals and fine chemicals can cause changes in the corrosive substances in the wastewater. This can lead to the selected heat exchanger tube material not meeting the requirements, causing pipe corrosion and affecting production. Therefore, replacing the heat exchanger tubes is a large-scale and time-consuming process. If the entire heat exchanger is replaced, the replacement cost will be even higher. Furthermore, the inability to replace the heat exchanger tubes will shorten the overall service life of the heat exchanger. Summary of the Invention

[0004] This invention aims to solve the problems existing in the prior art by providing a heat exchanger with replaceable heat exchange tubes, eliminating the need to replace the entire heat exchanger, reducing replacement costs, and extending the overall service life of the heat exchanger by increasing the heat exchange tubes.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: This heat exchanger has a replaceable heat exchange tube and includes a heat exchanger and a cap. The front and rear sides of the heat exchanger are respectively connected to the outer circular openings of the two caps by multiple bolts. The front and rear sides of the inner wall of the heat exchanger are respectively fixed with sealing plates. The outer circular openings of the two sealing plates are connected with heat pipe structures. The outer wall of the heat pipe structure is connected with a collar.

[0006] This feature uses a ring made of elastic rubber, which can seal the gaps in the circular opening of the rubber sealing plate.

[0007] To further improve the structure, the heat pipe includes a heat exchange tube and a ring. The outer wall of the heat exchange tube is inserted into the outer circular opening of the sealing plate. The end of the outer wall of the heat exchange tube is threaded to the inner wall of the ring. Protrusions are fixed to the left and right sides of the ring respectively.

[0008] This design allows the protrusion to form a force point with the hand, making it easier to rotate the ring.

[0009] Further improvements include ensuring that the outer wall of the heat exchange tube fits snugly against the inner wall of the retaining ring.

[0010] This design ensures that the inner wall of the retaining ring fits snugly against the outer wall of the heat exchange tube, thereby eliminating the gap between the retaining ring and the outer opening of the sealing edge, and completing the seal between the heat exchange tube and the sealing plate.

[0011] Further improvements include ensuring that the outer wall of the collar fits snugly against the inner opening of the outer wall of the sealing plate.

[0012] To further improve the design, a gasket is attached to the outer wall of the sealing plate.

[0013] This feature uses a metal washer to increase the friction between the ring and the surrounding surface, preventing the ring from loosening due to vibration.

[0014] Further improvements include inserting the inner wall of the gasket into the outer wall of the heat exchange tube.

[0015] This setting allows the gasket to be pulled from the inside out, thus detaching it from the outer wall of the heat exchange tube.

[0016] The beneficial effects of this utility model are as follows: In this utility model, by pushing the protrusion in the heat exchange structure, the ring rotates outward through the thread on the outer wall of the heat exchange tube, and the ring gradually disengages from the gasket until it is completely detached from the outer wall of the heat exchange tube. Then, the heat exchange tube is pulled forward, and the heat-plugging tube is pulled out of the circular opening on the outer wall of the sealing plate. Subsequently, a portion of the front and rear sides of the outer wall of the new heat exchange tube are inserted through the sealing plate. Then, two collars are inserted into the front and rear sides of the outer wall of the heat exchange tube, so that the outer walls of the collars are inserted into the circular opening on the outer wall of the sealing plate. Next, two gaskets are placed on the front and rear sides of the outer wall of the heat exchange tube, so that the outer walls of the gaskets fit against the outer wall of the sealing plate. Then, the hand contacts the protrusion, and then the ring is placed on the end of the heat exchange tube. Then, the protrusion is pushed to rotate the ring inward through the thread on the outer wall of the heat exchange tube, so that the ring presses the gasket against the outer wall of the sealing plate. At this point, the heat exchange tube replacement is completed without replacing the entire heat exchanger, reducing replacement costs and increasing the overall service life of the heat exchanger. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 for Figure 1 A schematic diagram showing the connection relationship between the central sealing plate, heat exchange tubes, and the annulus.

[0019] Figure 3 for Figure 1 A schematic diagram of the structure of A in the middle;

[0020] Figure 4 for Figure 1 A schematic diagram showing the connection structure of the center sealing plate, the retaining ring, and the heat exchange tubes;

[0021] Figure 5 for Figure 1 A schematic diagram showing the connection structure between the heat exchanger and the cap.

[0022] Explanation of reference numerals in the attached drawings: 1. Heat exchanger, 2. Heat pipe structure, 201. Heat exchange pipe, 202. Circular ring, 203. Protrusion, 3. Sealing plate, 4. Gasket, 5. Ring, 6. Cap. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings:

[0024] See attached document Figure 1-5 In this embodiment, a heat exchanger with replaceable heat exchange tubes includes a heat exchanger 1 and a cap 6. The front and rear sides of the heat exchanger 1 are respectively connected to the outer circular openings of the two caps 6 by multiple bolts. The front and rear sides of the inner wall of the heat exchanger 1 are respectively fixed with sealing plates 3. The outer circular openings of the two sealing plates 3 are connected to heat pipe structures 2. The outer wall of the heat pipe structure 2 is connected with a collar 5, which is an elastic rubber ring and plays a sealing role at the connection between the heat exchange tube and the sealing plate.

[0025] The heat pipe structure 2 includes a heat exchange tube 201 and a ring 202. The outer wall of the heat exchange tube 201 is inserted into the outer wall of the sealing plate 3. Threads are machined on the front and rear sides of the outer wall of the heat exchange tube 201. The end of the outer wall of the heat exchange tube 201 is threaded to the inner wall of the ring 202. The ring 202 rotates back and forth through the thread on the outer wall of the heat exchange tube 201 under force. Protrusions 203 are fixed on the left and right sides of the ring 202. The protrusions 203 can form a force point with the hand to facilitate the rotation of the ring 202. The outer wall of the heat exchange tube 201 fits against the inner wall of the collar 5.

[0026] By pushing the protrusion 203 in the heat exchange structure 2, the ring 202 rotates outward through the thread on the outer wall of the heat exchange tube 201, gradually disengaging from the washer 4 until it is completely detached from the outer wall of the heat exchange tube 201. Then, the heat exchange tube 201 is pulled forward, causing it to be pulled out of the circular opening on the outer wall of the sealing plate 3. Next, a portion of the new heat exchange tube 201 is inserted through the sealing plate 3 on both the front and rear sides. Then, two collars 5 are inserted into the front and rear sides of the outer wall of the heat exchange tube 201, respectively, so that the outer wall of the collars 5 is inserted into the circular opening on the outer wall of the sealing plate 3. Next, place the two washers 4 on the front and rear sides of the outer wall of the heat exchange tube 201 respectively, so that the outer wall of the washers 4 fits against the outer wall of the sealing plate 3. Then, contact the protrusion 203 with your hand, and then put the ring 202 on the end of the heat exchange tube 201. Then push the protrusion 203 to make the ring 202 rotate inward through the thread on the outer wall of the heat exchange tube 201, so that the ring 202 presses the washers 4 against the outer wall of the sealing plate 3. At this time, the replacement of the heat exchange tube 201 is completed without replacing the entire heat exchanger, reducing replacement costs and increasing the service life of the heat exchange tube and the overall heat exchanger.

[0027] The outer wall of the collar 5 fits into the inner opening of the outer wall of the sealing plate 3. A washer 4, which is a metal washer, is fitted onto the outer wall of the sealing plate 3 to increase the locking friction of the ring 202 and prevent the ring 202 from loosening. The inner wall of the washer 4 is inserted into the outer wall of the heat exchange tube 201.

[0028] Working principle:

[0029] The heat exchanger can be assembled with replaceable heat exchange tubes.

[0030] The heat exchange tube 201 is passed through the round openings on the outer walls of the two sealing plates 3, with a portion of the heat exchange tube 201 protruding from the sealing plates 3 on both the front and rear sides. Then, two collars 5 are inserted into the front and rear sides of the outer walls of the heat exchange tube 201, with the outer walls of the collars 5 fitting into the round openings on the outer walls of the sealing plates 3. Next, two washers 4 are placed on the front and rear sides of the outer walls of the heat exchange tube 201, with the outer walls of the washers 4 fitting against the outer walls of the sealing plates 3. Then, the hand contacts the protrusion 203, and then the ring 202 is placed on the end of the heat exchange tube 201. Then, the protrusion 203 is pushed so that the ring 202 rotates inward through the threads on the outer wall of the heat exchange tube 201, so that the ring 202 presses the washers 4 against the outer wall of the sealing plates 3. At this point, the installation of the heat exchange tube 201 is completed. Then, the cap 6 is fitted to the end of the heat exchanger 1, and then the bolts are passed through the flange on the outer wall of the cap 6 and connected to the flange on the outer wall of the heat exchanger 1, completing the overall assembly of the heat exchanger 1.

[0031] Multiple openings can be machined on the outer wall of the sealing plate 3 as needed to facilitate the installation of the heat exchange tube 201. After the heat exchanger is assembled, hot flow can be poured into the top front vertical pipe, while cold flow is poured into the front straight cylinder. At this time, the cold flow will enter the heat exchange tube 201, while the hot flow enters the interior of the heat exchanger 1 and contacts the outer wall of the heat exchange tube 201. Heat passes through the heat exchange tube 201, and the cold flow inside the heat exchange tube 201 absorbs the heat. Then, it is discharged at the rear of the heat exchange tube 201. At this time, the original heat flow is absorbed and the temperature drops downward, and finally it is discharged at the rear vertical pipe position, completing the heat exchange work.

[0032] Heat exchanger tube replacement:

[0033] Turn the bolt outward to disengage it from the flange on the outer wall of the heat exchanger 1. Then remove the cap 6. Next, push the protrusion 203 to rotate the ring 202 outward through the thread on the outer wall of the heat exchange tube 201. The ring 202 gradually disengages from the gasket 4 until it is completely detached from the outer wall of the heat exchange tube 201. Then, pull the heat exchange tube 201 forward to pull it out of the circular opening on the outer wall of the sealing plate 3. Then, insert a portion of the new heat exchange tube 201 through the sealing plate 3 on both the front and rear sides of its outer wall. Finally, insert the two collars 5 into the heat exchange tube 201. Insert the outer wall of the heat exchange tube 201 into the front and rear sides, so that the outer wall of the sleeve 5 is inserted into the round opening of the outer wall of the sealing plate 3. Then, put the two washers 4 on the front and rear sides of the outer wall of the heat exchange tube 201 respectively, so that the outer wall of the washers 4 is in contact with the outer wall of the sealing plate 3. Then, make contact with the protrusion 203, and then put the ring 202 on the end of the heat exchange tube 201. Then push the protrusion 203 to make the ring 202 rotate inward through the thread on the outer wall of the heat exchange tube 201, so that the ring 202 presses the washers 4 against the outer wall of the sealing plate 3. At this time, the replacement of the heat exchange tube 201 is completed.

[0034] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A heat exchanger with replaceable heat exchange tubes, comprising a heat exchanger (1) and a cap (6), characterized in that: The front and rear sides of the heat exchanger (1) are respectively connected to the outer round openings of two caps (6) by multiple bolts. The front and rear sides of the inner wall of the heat exchanger (1) are respectively fixed with sealing plates (3). The outer round openings of the two sealing plates (3) are connected with heat pipe structures (2). The outer wall of the heat pipe structure (2) is connected with a collar (5).

2. The heat exchanger with replaceable heat exchange tubes according to claim 1, characterized in that: The heat pipe structure (2) includes a heat exchange tube (201) and a ring (202). The outer wall of the heat exchange tube (201) is inserted into the outer wall of the sealing plate (3). The outer end of the heat exchange tube (201) is threaded to the inner wall of the ring (202). The left and right sides of the ring (202) are respectively fixed with protrusions (203).

3. The heat exchanger with replaceable heat exchange tubes according to claim 2, characterized in that: The outer wall of the heat exchange tube (201) is in contact with the inner wall of the collar (5).

4. The heat exchanger with replaceable heat exchange tubes according to claim 1, characterized in that: The outer wall of the collar (5) fits into the inner part of the outer circular opening of the sealing plate (3).

5. The heat exchanger with replaceable heat exchange tubes according to claim 1, characterized in that: The outer wall of the sealing plate (3) is fitted with a gasket (4).

6. The heat exchanger with replaceable heat exchange tubes according to claim 5, characterized in that: The inner wall of the gasket (4) is inserted into the outer wall of the heat exchange tube (201).

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