Two-stage slag reducing heat exchanger for flash bottom oil

Abstract

The utility model discloses a flash bottom oil two-stage slag reducing heat exchanger, and relates to the technical field of heat exchangers. The heat exchanger comprises a heat exchanger body, two first connecting discs are symmetrically and fixedly connected to the heat exchanger body, pipe boxes are installed at the two ends of the heat exchanger body, two second connecting discs are symmetrically and fixedly connected to the pipe boxes, and a liquid inlet pipe is fixedly connected to the heat exchanger body. The connecting mechanism is arranged, L-shaped blocks are completely separated from the interiors of the through holes by pressing the L-shaped blocks downwards, C-shaped blocks are pulled outwards to be pulled out of the fixing frames at the moment, the C-shaped blocks are pulled out of the connecting grooves in the first connecting disc and the second connecting disc together, and then the heat exchanger body and the tube box can be rapidly separated; therefore, the heat exchange tube can be quickly replaced and maintained without any tool, the replacement speed between the heat exchanger body and the tube box is greatly increased, time and labor are saved in maintenance operation, the heat exchange efficiency of the heat exchange tube in the heat exchanger body is effectively guaranteed, and the use energy consumption of the heat exchanger body is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of heat exchangers, and in particular to a flash bottom oil two-stage slag reduction heat exchanger. Background Art

[0002] When heat exchange is required in the flash oil secondary slag reduction process, a heat exchanger is required. Heat exchangers are common equipment in petroleum refining and other chemical processes, used to transfer heat from one fluid to another. In the flash oil secondary slag reduction process, heat exchangers are required to heat or cool the fluid to change its physical state or perform chemical reactions.

[0003] The flash tower feed tower bottom oil heat exchanger mentioned in the existing Chinese public patent (authorization announcement number: CN215177088U) relates to the technical field of petrochemical equipment, including a tower body, a feed pipe is provided on the side of the tower body, and one end of the feed channel is located in the middle of the tower body, a multi-way pipe is welded at one end of the feed pipe, a connector is fixed at the outlet of the multi-way pipe, a connecting pipe is provided at one end of the connector, a spring is welded on the bottom surface of the connecting pipe, a material storage tray is provided in the connecting pipe, and the material storage tray is movably connected to the connecting pipe, a scraper is welded on the top surface of the material storage tray, a heat exchange pipe is provided in the tower body, and a flange is connected to a discharge pipe at one end of the connecting channel. The heat exchange pipe, scraper, storage tray and connector are used to effectively improve the quality of the flash evaporation of the equipment, exchange the position of the product and the heat exchange pipe, improve the working efficiency of the heat exchange pipe, and effectively clean the inner wall of the connecting pipe after the equipment is finished working to prevent the pipe from being corroded, thereby increasing the service life of the equipment.

[0004] In the above patent, the quality of flash evaporation of the equipment is effectively improved, the position of the product and the heat exchange tube are swapped, and the working efficiency of the heat exchange tube is improved. However, in actual use, after a long period of flash bottom oil two-stage slag reduction treatment, the heat transfer efficiency of the heat exchange tube inside the heat exchanger will gradually decrease. At this time, the heat exchange tube needs to be replaced and repaired, but most of the current heat exchangers are connected by bolts or welding. When removing and replacing the heat exchange tube, a large number of tools are required for disassembly, which is extremely inconvenient and greatly reduces the working efficiency. For this reason, the present application provides a flash bottom oil two-stage slag reduction heat exchanger. Utility Model Content

[0005] The purpose of this application is to solve the problem that when removing and replacing heat exchange tubes, a large number of tools are needed for disassembly, which is extremely inconvenient and greatly reduces work efficiency. This application provides a flash bottom oil two-stage slag reduction heat exchanger.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] The flash bottom oil two-stage slag reduction heat exchanger includes a heat exchanger body, two connecting plates 1 are symmetrically fixedly connected to the heat exchanger body, pipe boxes are installed at both ends of the heat exchanger body, two connecting plates 2 are symmetrically fixedly connected to the pipe box, a liquid inlet pipe is fixedly connected to the upper part of the heat exchanger body, a liquid outlet pipe is fixedly connected to the heat exchanger body, a connecting mechanism is symmetrically installed on one side of the two connecting plates 2, and a plurality of heat exchange tubes are installed inside the heat exchanger body.

[0008] By adopting the above technical solution, the heat exchanger body is opened and operated to perform heating or cooling to change its physical state or perform chemical reactions. After a long period of flash bottom oil second-stage slag reduction treatment, the heat transfer efficiency of the heat exchange tubes inside the heat exchanger body will gradually decrease. At this time, the connection mechanism on one side of the connecting plate 2 can be manually pulled to release the connection between the connecting plate 1 and the connecting plate 2, so that the connecting plate 1 and the connecting plate 2 can be quickly disassembled and separated, thereby separating the heat exchanger body and the pipe box from each other. After the heat exchanger body and the pipe box are separated, the heat exchange tubes inside the heat exchanger body can be quickly pulled out for replacement and maintenance, thereby greatly improving the disassembly and replacement speed between the heat exchanger body and the pipe box, making the maintenance operation time-saving and labor-saving, thereby effectively ensuring the heat exchange efficiency of the heat exchange tubes inside the heat exchanger body and reducing the energy consumption of the heat exchanger body.

[0009] Furthermore, the connecting mechanism includes a fixing frame symmetrically fixedly connected to one side of the two connecting disks 2, a through hole is provided on the top of the fixing frame, an L-shaped block is slidably connected inside the through hole, a C-shaped block is slidably connected inside the fixing frame, a guide rod is fixedly connected to the top of the C-shaped block, a guide groove is provided through the L-shaped block, the shape and size of the guide groove are consistent with the guide rod, connecting grooves are symmetrically provided on the connecting disk 1 and the connecting disk 2, the shape and size of the connecting grooves are consistent with one end of the C-shaped block, and a limiting member is installed on one end of the C-shaped block.

[0010] By adopting the above technical solution, the L-shaped block is pressed downward to completely disengage from the through hole. At this time, the C-shaped block is pulled out of the fixing frame, thereby pulling the C-shaped block out of the connecting grooves in the connecting disks 1 and 2. The heat exchanger body and the pipe box can be quickly separated, so that the heat exchange tubes can be quickly replaced and repaired without using any tools.

[0011] Furthermore, a spring 1 is sleeved on the guide rod, one end of the spring 1 is fixedly connected to the top of the C-shaped block, and the other end of the spring 1 is fixedly connected to the bottom of the L-shaped block.

[0012] By adopting the above technical solution, the L-shaped block can always be placed in the through hole due to the rebound of the spring 1.

[0013] Furthermore, sliding grooves are provided on both sides of the interior of the fixing frame, and sliding blocks are symmetrically fixedly connected to both sides of the C-shaped block, and the sliding blocks are slidably connected in the sliding grooves.

[0014] By adopting the above technical solution, the C-shaped block is pulled outward and moves toward the outside of the fixing frame under the guidance of the slider and the sliding groove.

[0015] Furthermore, the limiting member includes grooves symmetrically opened at the upper and lower ends of the C-shaped block, the interior of each groove is fixedly connected to a spring 2, the interior of each groove is slidably connected to a limiting block, and one end of the spring 2 is fixedly connected to one end of the limiting block.

[0016] By adopting the above technical solution, when one end of the C-shaped block completely passes through the connecting groove, the limit block will be pushed out from the inside of the groove according to the rebound of spring 2, so that one side of the connecting disk 1 can be limited by the pushed-out limit block, so that the C-shaped block will not be pulled out from the inside of the connecting groove.

[0017] Furthermore, the end of the limit block away from the second spring is arc-shaped.

[0018] By adopting the above technical solution, the setting of the arc-shaped end can make the limit block move better in the reconnection groove.

[0019] Furthermore, two supporting legs are symmetrically fixedly connected to the bottom of the heat exchanger body, and connecting plates are fixedly connected to both sides of the two supporting legs, and mounting holes are symmetrically opened on the connecting plates.

[0020] By adopting the above technical solution, the connecting plate is fitted to the ground, and then the position of the heat exchanger body is fixed by inserting objects such as bolts into the mounting holes.

[0021] Furthermore, sealing gaskets are fixedly connected to the opposite surfaces of the first connecting plate and the second connecting plate.

[0022] By adopting the above technical solution, the sealing between the first connecting plate and the second connecting plate can be effectively maintained through the fitting of the sealing gasket.

[0023] In summary, this application has at least one of the following beneficial effects:

[0024] 1. The present application is provided with a connecting mechanism. By pressing the L-shaped block downward, the L-shaped block is completely separated from the inside of the through hole. At this time, the C-shaped block is pulled out of the fixing frame, thereby pulling the C-shaped block out of the connecting groove in the connecting plate 1 and the connecting plate 2 at the same time, and the heat exchanger body and the pipe box can be quickly separated. In this way, the heat exchange tubes can be quickly replaced and repaired without using any tools, which greatly improves the speed of disassembly and replacement between the heat exchanger body and the pipe box, making the maintenance operation time-saving and labor-saving, thereby effectively ensuring the heat exchange efficiency of the heat exchange tubes inside the heat exchanger body and reducing the energy consumption of the heat exchanger body.

[0025] 2. This application is provided with a groove, a second spring, and a limit block. After the heat exchange tube is replaced, the C-shaped block is taken out and inserted into the connecting groove. When one end of the C-shaped block completely passes through the connecting groove, the limit block will be pushed out from the inside of the groove according to the rebound of the second spring. In this way, one side of the connecting disk 1 is limited by the pushed-out limit block, so that the C-shaped block will not be pulled out from the inside of the connecting groove, effectively maintaining the sealing between the connecting disk 1 and the connecting disk 2. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the device body in this application.

[0027] Figure 2 It is a schematic diagram of the internal structure of the device body in this application.

[0028] Figure 3 It is a schematic diagram of the three-dimensional structure of the connecting mechanism in this application.

[0029] Figure 4 It is a schematic diagram of the three-dimensional structure of the limiting member in this application.

[0030] Description of reference numerals:

[0031] 1. Heat exchanger body; 2. Connecting plate 1; 3. Pipe box; 4. Connecting plate 2; 5. Liquid inlet pipe; 6. Liquid outlet pipe; 7. Connecting mechanism; 8. Heat exchange tube; 9. Support leg; 10. Connecting plate; 11. Sealing gasket; 71. Fixing bracket; 72. L-shaped block; 73. C-shaped block; 74. Guide rod; 75. Spring 1; 76. Guide groove; 77. Slider; 78. Connecting groove; 79. Groove; 710. Spring 2; 711. Limit block. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The embodiment of the present application discloses a flash bottom oil two-stage slag reduction heat exchanger.

[0034] Reference Figure 1 and Figure 2The flash bottom oil two-stage slag reduction heat exchanger includes a heat exchanger body 1, two connecting plates 2 are symmetrically fixedly connected to the heat exchanger body 1, pipe boxes 3 are installed at both ends of the heat exchanger body 1, two connecting plates 2 are symmetrically fixedly connected to the pipe box 3, a liquid inlet pipe 5 is fixedly connected to the upper part of the heat exchanger body 1, a liquid outlet pipe 6 is fixedly connected to the heat exchanger body 1, a connecting mechanism 7 is symmetrically installed on one side of the two connecting plates 2 4, a plurality of heat exchange tubes 8 are installed inside the heat exchanger body 1, two supporting legs 9 are symmetrically fixedly connected to the bottom of the heat exchanger body 1, connecting plates 10 are fixedly connected on both sides of the two supporting legs 9, mounting holes are symmetrically opened on the connecting plate 10, and sealing gaskets 11 are fixedly connected to the opposite surfaces of the connecting plate 1 2 and the connecting plate 2 4.

[0035] When in use, first fit the connecting plate 10 to the ground, and then fix the position of the heat exchanger body 1 by inserting bolts or other items into the mounting holes. When the flash oil second stage slag reduction process is required, the heat exchanger body 1 is opened and operated to heat or cool to change its physical state or perform a chemical reaction. After a long period of flash oil second stage slag reduction, the heat transfer efficiency of the heat exchange tube 8 inside the heat exchanger body 1 will gradually decrease. At this time, the connection mechanism 7 on one side of the connecting plate 2 4 can be manually pulled to release the connection. The connection between disk 1 2 and connecting disk 2 4 allows for quick disassembly and separation of connecting disk 1 2 and connecting disk 2 4, thereby separating the heat exchanger body 1 and the pipe box 3 from each other. After the heat exchanger body 1 and the pipe box 3 are separated, the heat exchange tubes 8 inside the heat exchanger body 1 can be quickly pulled out for replacement and maintenance, thereby greatly improving the disassembly and replacement speed between the heat exchanger body 1 and the pipe box 3, making the maintenance operation time-saving and labor-saving, thereby effectively ensuring the heat exchange efficiency of the heat exchange tubes 8 inside the heat exchanger body 1 and reducing the energy consumption of the heat exchanger body 1.

[0036] Reference Figure 1 、 Figure 3 and Figure 4 When the locking cam 75 is unlocked, the locking cam 78 is unlocked, and the winch 73 is unlocked, so that the winch 73 can be unlocked.

[0037] Secondly, the limiting part includes grooves 79 symmetrically opened at the upper and lower ends of the C-shaped block 73. The interior of the grooves 79 is fixedly connected to the spring 2 710, and the interior of the grooves 79 is slidably connected to the limiting block 711. One end of the spring 2 710 is fixedly connected to one end of the limiting block 711, and the end of the limiting block 711 away from the spring 2 710 is arc-shaped.

[0038] When the L-shaped block 72 is completely out of the through hole, the C-shaped block 73 can be pulled outward to move toward the outside of the fixing frame 71 according to the guidance of the slider 77 and the slide groove. At this time, since the limit between the L-shaped block 72 and the through hole has been released, the C-shaped block 73 can be directly The C-shaped block 73 is pulled out of the fixing frame 71, and the C-shaped block 73 is also pulled out from the connecting groove 78 in the connecting plate 1 2 and the connecting plate 2 4. At this time, after the connecting plate 1 2 and the connecting plate 2 4 are no longer limited by the C-shaped block 73, the heat exchanger body 1 and the pipe box 3 can be quickly separated. In this way, the heat exchange tube 8 can be quickly replaced and repaired without using any tools, which greatly improves the speed of disassembly and replacement between the heat exchanger body 1 and the pipe box 3, making the maintenance operation time-saving and labor-saving, thereby effectively ensuring the heat exchange efficiency of the heat exchange tube 8 inside the heat exchanger body 1 and reducing the energy consumption of the heat exchanger body 1.

[0039] Secondly, when the heat exchange tube 8 is replaced, the connecting plate 1 2 and the connecting plate 2 4 can be re-fitted, and then the C-shaped block 73 can be taken out and inserted into the connecting groove 78. At this time, the inner wall of the connecting groove 78 will squeeze the arc-shaped end of the limit block 711 and slide it into the inside of the groove 79. When one end of the C-shaped block 73 completely passes through the connecting groove 78, the limit block 711 will be pushed out from the inside of the groove 79 according to the rebound of the spring 2 710, so that one side of the connecting plate 1 2 is limited by the ejected limit block 711, so that the C-shaped block 73 will not be pulled out from the inside of the connecting groove 78. By cooperating with the sealing gasket 11, the sealing between the connecting plate 1 2 and the connecting plate 2 4 can be effectively maintained.

[0040] The implementation principle of the flash bottom oil two-stage slag reduction heat exchanger of this embodiment is as follows: when in use, first fit the connecting plate 10 to the ground, and then fix the position of the heat exchanger body 1 by inserting objects such as bolts into the inside of the mounting hole. When the flash bottom oil two-stage slag reduction process is required, the heat exchanger body 1 is opened and operated to heat or cool to change its physical state or perform a chemical reaction. After the flash bottom oil two-stage slag reduction process is performed for a long time, the heat transfer efficiency of the heat exchange tube 8 inside the heat exchanger body 1 will gradually decrease. At this time, the L-shaped block 72 can be pressed downward to move the L-shaped block 72 downward along the through hole. When the L-shaped block 72 moves, the guide rod 74 will enter the inside of the guide groove 76. The guide rod 74 can guide the movement direction of the L-shaped block 72. At this time, the bottom of the L-shaped block 72 will squeeze the spring 7 When the locking cam 73 is in the unlocked position, the locking cam 73 is released, and the locking cam 73 is released, so that the locking cam 73 is directly pulled out of the locking cam 71 , thereby removing the locking cam 73 from the locking groove 78 in the connecting plate 1 2 and the connecting plate 2 4 . At this time, after the connecting plate 1 2 and the connecting plate 2 4 lose the restraint of the C-shaped block 73 , the heat exchanger body 1 and the pipe box 3 can be quickly separated. In this way, the heat exchange tube 8 can be quickly replaced and repaired without using any tools, which greatly improves the speed of disassembly and replacement between the heat exchanger body 1 and the pipe box 3, making the maintenance operation time-saving and labor-saving, thereby effectively ensuring the heat exchange efficiency of the heat exchange tube 8 in the heat exchanger body 1 and reducing the energy consumption of the heat exchanger body 1.

[0041] Secondly, when the heat exchange tube 8 is replaced, the connecting plate 1 2 and the connecting plate 2 4 can be re-fitted, and then the C-shaped block 73 can be taken out and inserted into the connecting groove 78. At this time, the inner wall of the connecting groove 78 will squeeze the arc-shaped end of the limit block 711 and slide it into the inside of the groove 79. When one end of the C-shaped block 73 completely passes through the connecting groove 78, the limit block 711 will be pushed out from the inside of the groove 79 according to the rebound of the spring 2 710, so that one side of the connecting plate 1 2 is limited by the ejected limit block 711, so that the C-shaped block 73 will not be pulled out from the inside of the connecting groove 78. By cooperating with the sealing gasket 11, the sealing between the connecting plate 1 2 and the connecting plate 2 4 can be effectively maintained.

Claims

1. A flash bottom oil two-stage slag reduction heat exchanger, comprising a heat exchanger body (1), characterized in that: Two connecting plates (1) are symmetrically fixedly connected to the heat exchanger body (1), a pipe box (3) is installed at both ends of the heat exchanger body (1), two connecting plates (2) are symmetrically fixedly connected to the pipe box (3), a liquid inlet pipe (5) is fixedly connected to the upper part of the heat exchanger body (1), a liquid outlet pipe (6) is fixedly connected to the heat exchanger body (1), a connecting mechanism (7) is symmetrically installed on one side of the two connecting plates (4), and a plurality of heat exchange tubes (8) are installed inside the heat exchanger body (1); The connecting mechanism (7) includes a fixing frame (71) symmetrically fixedly connected to one side of the two connecting disks (4), a through hole is provided on the top of the fixing frame (71), an L-shaped block (72) is slidably connected inside the through hole, a C-shaped block (73) is slidably connected inside the fixing frame (71), a guide rod (74) is fixedly connected to the top of the C-shaped block (73), a guide groove (76) is provided through the L-shaped block (72), and the shape and size of the guide groove (76) are consistent with those of the guide rod (74), the connecting disk (2) and the connecting disk (4) are both symmetrically provided with connecting grooves (78), and the shape and size of the connecting grooves (78) are consistent with those of one end of the C-shaped block (73), and a limiting member is installed on one end of the C-shaped block (73).

2. The flash bottom oil two-stage slag reduction heat exchanger according to claim 1, characterized in that: A spring 1 (75) is sleeved on the guide rod (74), one end of the spring 1 (75) is fixedly connected to the top of the C-shaped block (73), and the other end of the spring 1 (75) is fixedly connected to the bottom of the L-shaped block (72).

3. The flash bottom oil two-stage slag reduction heat exchanger according to claim 1, characterized in that: Slide grooves are provided on both sides of the interior of the fixing frame (71), and sliders (77) are symmetrically fixedly connected to both sides of the C-shaped block (73), and the sliders (77) are slidably connected in the slide grooves.

4. The flash bottom oil two-stage slag reduction heat exchanger according to claim 1, characterized in that: The limiting member comprises grooves (79) symmetrically arranged at the upper and lower ends of the C-shaped block (73), the interior of each groove (79) being fixedly connected to a second spring (710), the interior of each groove (79) being slidably connected to a limiting block (711), and one end of the second spring (710) being fixedly connected to one end of the limiting block (711).

5. The flash bottom oil two-stage slag reduction heat exchanger according to claim 4, characterized in that: The end of the limiting block (711) away from the second spring (710) is arc-shaped.

6. The flash bottom oil two-stage slag reduction heat exchanger according to claim 1, characterized in that: Two supporting legs (9) are symmetrically fixedly connected to the bottom of the heat exchanger body (1), and connecting plates (10) are fixedly connected to both sides of the two supporting legs (9), and mounting holes are symmetrically opened on the connecting plates (10).

7. The flash bottom oil two-stage slag reduction heat exchanger according to claim 1, characterized in that: The opposite surfaces of the connecting plate 1 (2) and the connecting plate 2 (4) are both fixedly connected with a sealing gasket (11).

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