Multi-stage graphite condenser anti-blocking structure and method

Abstract

The invention discloses a multistage graphite condenser anti-blocking structure and method, and belongs to the technical field of condensers, a fixing plate is fixedly arranged between an end cover and an end plate on the right side, a plurality of sleeves corresponding to condensation pipes are fixedly arranged on the inner bottom wall of the end cover on the left side, and a cleaning rod assembly is arranged in each condensation pipe; the left ends of the cleaning rod assemblies are inserted into the corresponding sleeves, and impact assemblies are arranged at the right ends of the cleaning rod assemblies. When the device is used, the end cover on the right side is opened, each impact assembly is knocked by a hammer, the impact assemblies drive the cleaning rod assembly to do reciprocating motion and high-speed rotation in the cold pipe, and if a condensation pipe completely blocked by scale exists, the impact assemblies can be found to move slowly or not when the impact assemblies are knocked by the hammer; at the moment, the impact assembly is lightly knocked by a hammer for multiple times, when the impact assembly freely moves, it is represented that scale in the condensation pipe is completely loosened through vibration, all the condensation pipes are subjected to the operation, and the purpose of clearing and dredging the completely-blocked condensation pipe is achieved.

Description

Technical Field

[0001] This invention belongs to the technical field of condensers, and particularly relates to a multi-stage graphite condenser anti-clogging structure and method. Background Technology

[0002] The existing condenser includes a shell 1, with end caps 2 fixedly installed at both ends of the shell 1, and end plates 3 fixedly installed at both ends inside the shell 1. Several condenser tubes 4 are evenly arranged inside the shell 1 along its length, and each condenser tube 4 is fixedly installed to each end plate 3. The space between the condenser tubes 4 and the shell 1 is the space for the flow of cooling medium. The working medium flows through the condenser tubes 4, and the cooling medium and the working medium form a heat exchange to achieve the purpose of cooling down the working medium.

[0003] On ocean-going vessels, there are various types of condensers in the engine room. Among them, the cylinder liner water condenser of the main engine and the boiler return water condenser are most prone to scale buildup, which can completely clog the condenser tubes 4. The maintenance cycle for condensers is to clean them every three months. On ocean-going vessels, sailors remove the end cap 2 on one side of the condenser to expose the end of the condenser tube 4. Then, using a vertical rod with bristles at one end, they insert the bristle end of the vertical rod into the condenser tube 4 and pull it back and forth, using the bristles to clean the inner wall of the condenser tube 4. However, there are often several condenser tubes 4 in the main engine cylinder liner water condenser and the boiler return water condenser that cannot be cleaned, indicating that the condenser tubes 4 are completely blocked by scale. The sailors' approach is to try to clean them several times with the vertical rod, and if they cannot clear them, they give up. The main reason is that they are worried that the vertical rod will damage the condenser tubes 4 and affect the normal navigation of the ship. Another reason is that there are many condenser tubes 4 in the condenser, and the blockage of no more than one-third of the total number of tubes will not affect the normal operation of the equipment. According to the China Classification Society (CCS), ocean-going freighters need to undergo dry dock maintenance every three years. During the three-year dry dock overhaul, the ship is hoisted to the shipyard workshop for chemical soaking to thoroughly clear any blockages in the condenser pipes. However, some condensers cannot withstand the three-year dry dock overhaul, with more than one-third of the condenser pipes becoming completely blocked. This severely affects equipment operation and consequently, sailing schedules, forcing the ship to enter the dry dock for repairs. The resulting losses are incalculable. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-stage graphite condenser anti-clogging structure and method, which enables seafarers to clear completely blocked condenser tubes during the three-year dry-dock maintenance period stipulated by the China Classification Society. This effectively solves the problem in the prior art where dry-dock maintenance is forced when more than one-third of the condensers are blocked during the dry-dock maintenance period.

[0005] The present invention adopts the following technical solution: a multi-stage graphite condenser anti-clogging structure, including a fixing plate fixedly installed between the end cover and the end plate on the right side, and several sleeves corresponding to the condenser tubes fixedly installed on the inner bottom wall of the end cover on the left side. Each condenser tube is provided with a cleaning rod assembly. The left end of the cleaning rod assembly is inserted into the corresponding sleeve, and the right end of the cleaning rod assembly is provided with an impact assembly. The impact assemblies are all sleeved with the fixing plate. When the impact assembly is struck, the impact assembly is used to drive the cleaning rod assembly to reciprocate and rotate.

[0006] Furthermore, the cleaning rod assembly includes a central rod, on which several centrifugal rods are hinged. The left end of the central rod is inserted into the sleeve, and the right end of the central rod is connected to the impact assembly.

[0007] Furthermore, a buffer spring is provided between the left end of the central rod and the inner bottom wall of the sleeve.

[0008] Furthermore, the impact assembly includes a sleeve fitted inside the fixed plate, with the right end of the central rod inserted into the sleeve and fixedly installed therein; an impact head is fitted inside the sleeve, and an impact spring is provided between the inner end of the impact head and the inner bottom wall of the sleeve; an inclined groove is provided on the outer surface of the sleeve, and a drive pin is fixedly installed on the outer surface of the impact head, with the drive pin located in the inclined groove.

[0009] Furthermore, the inclined grooves are symmetrically arranged on both sides of the sleeve, each inclined groove includes two symmetrical guide grooves, the two guide grooves form a V shape, the driving pins are two respectively located in the corresponding inclined grooves, and two guide mechanisms corresponding to the driving pins are fixedly arranged on the outer surface of the sleeve.

[0010] Furthermore, the guiding mechanism includes a guide cylinder fixedly disposed with the sleeve, a push plate sleeved inside the guide cylinder, a plurality of push blocks fixedly disposed on the right side of the push plate, a limit plate fixedly disposed inside the right end of the guide cylinder, a plurality of limit blocks adapted to the push blocks fixedly disposed on the left side of the limit plate, and a limit groove and a release slope formed on the left side of the limit block; a driving slope adapted to the limit groove formed on the right end of the push block; a guide post slidably connected in the left and right direction inside the limit plate, a guide slope formed on the right end of the guide post, a plurality of driving blocks fixedly disposed on the outer surface of the guide post located between the plurality of limit blocks, the number of driving blocks being twice that of the push blocks, two driving surfaces formed on the left side of the driving blocks, and a return spring fixedly disposed between the left side of the push plate and the inner bottom wall of the guide cylinder.

[0011] Furthermore, a first flange is fixedly installed on both the left and right sides of the housing, and a second flange is fixedly installed on both end caps. The first flange and the corresponding second flange are fixed by through bolts. A third flange is installed between the first flange and the second flange on the right side. The third flange and the first flange on the right side are fixed by fastening bolts. The third flange and the first flange clamp and fix the fixing plate.

[0012] Furthermore, a central plate is fixedly installed between the two end plates, and each condenser tube is fixedly installed with the central plate. The central plate divides the interior of the shell into two spaces, left and right. The left space is for primary condensation, and the right space is for secondary condensation.

[0013] Furthermore, a flow guide plate is fixedly installed between the left end plate and the center plate, and between the right end plate and the center plate. A first valve, a second valve, a third valve, and a fourth valve are fixedly installed on the outer surface of the housing. The first valve communicates with the space between the left end plate and the flow guide plate, the second valve communicates with the space between the left flow guide plate and the center plate, the third valve communicates with the space between the center plate and the right flow guide plate, and the fourth valve communicates with the space between the right flow guide plate and the end plate.

[0014] A method of using a multi-stage graphite condenser anti-clogging structure, comprising the multi-stage graphite condenser anti-clogging structure as described in any one of claims 1-9: A. Remove the right end cap by removing the through bolt; B. Use a hammer to tap the impact head one by one. An impact head that can move freely indicates that the condenser tube is well unblocked. C. When encountering an impact head that cannot move, you need to tap the impact head repeatedly until it can move freely. If the impact head still cannot move, give up on cleaning the condenser tube. D. Remove the fastening bolts and disassemble the third flange and the fixing plate; E, the freely movable center rod and impact head are pulled out; F. Use a vertical rod with bristles at one end to insert into the condenser tube and repeatedly push it in and out to clean the inner wall of the condenser tube with the bristles. G. Reinsert the center rod into the condenser tube, insert the left end of the center rod into the sleeve, then install the fixing plate and the third flange, and then install the end cap on the right side.

[0015] I. This invention comprises a housing, condenser tubes, a fixing plate, a sleeve, a cleaning component, and an impact component. In use, the right-side end cap is opened, and each impact component is struck with a hammer. The impact component drives the cleaning rod component to reciprocate and rotate at high speed within the condenser tube, achieving the purpose of physically cleaning the inside of the condenser tube. If a condenser tube is completely clogged with scale, the impact component will move slowly or not at all when struck with a hammer. In this case, repeatedly and gently strike the impact component with a hammer until it moves freely, i.e., reciprocates and rotates, indicating that the scale inside the condenser tube has been completely loosened. The above operation is performed on each condenser tube. After the impact component of each condenser tube can move freely, the fixing plate can be removed to extract the impact component and the cleaning rod component. Then, a vertical rod with bristles is inserted into the condenser tube and pulled back and forth to clean the inner wall of the condenser tube. Finally, a working medium is used to flush out the loosened scale inside.

[0016] II. This invention, through the arrangement of a central rod, sleeve, drive pin, impact head, and impact spring, utilizes a hammer to strike the impact head. The immense inertial potential energy, acting on the sleeve through the impact spring, causes the sleeve to move to the left. The sleeve then pushes the central rod to the left. Simultaneously, the drive pin, via the inclined groove, drives the sleeve to rotate, which in turn drives the central rod to rotate. The leftward movement and rotation of the central rod compress the buffer spring. After the inertial kinetic energy dissipates, the buffer spring pushes the central rod to the right to reset, thus achieving the purpose of striking the impact head to drive the central rod to reciprocate and rotate. When striking the impact head, the impact head moves within the sleeve, compressing the impact spring. The impact spring then ejects the impact head, while the drive pin returns to the rightmost end of the inclined groove, awaiting the next strike. This achieves the purpose of striking the impact head to drive the central rod to reciprocate and rotate, causing the central rod to vibrate and loosen the scale. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a front view structural diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the fixing plate in this invention; Figure 4 This is a schematic diagram of the internal three-dimensional structure of the shell in this invention; Figure 5 This is a schematic diagram of the internal structure of the housing in this invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the sleeve in this invention; Figure 7 This is a schematic diagram of the internal three-dimensional structure of the condenser tube in this invention; Figure 8 For the present invention Figure 7Enlarged schematic diagram of the structure at point A in the diagram; Figure 9 For the present invention Figure 7 Enlarged schematic diagram of the structure at point B in the diagram; Figure 10 This is a schematic diagram of the internal three-dimensional structure of the central rod in this invention; Figure 11 For the present invention Figure 10 Enlarged schematic diagram of the C structure in the image; Figure 12 This is a schematic diagram of the three-dimensional structure of the sleeve in this invention; Figure 13 This is a three-dimensional structural diagram of the guide cylinder in this invention; Figure 14 This is a top view of the guide column structure in this invention; Figure 15 This is a bottom view of the guide column structure in this invention; Figure 16 This is a three-dimensional structural diagram of the drive pin in this invention; Figure 17 This is a schematic diagram of the internal three-dimensional structure of the sleeve in this invention; Figure 18 This is a schematic diagram of the internal three-dimensional structure of the guide cylinder in this invention; Figure 19 This is a three-dimensional structural diagram of the state in which the push plate is located in the limiting groove of the limiting plate in this invention; Figure 20 This is a three-dimensional structural diagram of the push plate and push block in this invention; Figure 21 This is a schematic diagram of the three-dimensional structure of the driving block in this invention; Figure 22 This is a three-dimensional structural diagram of the pushing block sliding out of the limiting groove in this invention; Figure 23 This is a three-dimensional structural diagram of the state in which the push plate enters between the two limiting blocks in this invention. Figure 24 This is a three-dimensional structural diagram of the state in which the pushing block pushes the driving block to move to the right and is limited by the limiting plate in the present invention.

[0018] In the diagram, 1. Shell; 2. End cap; 3. End plate; 4. Condenser; 5. Fixing plate; 6. Sleeve; 7. Center rod; 8. Centrifugal rod; 9. Buffer spring; 10. Circular plate; 11. Sleeve; 12. Impact head; 13. Impact spring; 14. Drive pin; 15. Guide groove; 16. Guide cylinder; 17. Push plate; 18. Push block; 19. Limiting plate; 20. Limiting block; 21. Limiting groove; 22. Release slope; 23. Drive pin. 24. Moving inclined plane; 25. Guide column; 26. Guide inclined plane; 27. Drive block; 28. Drive surface; 29. ​​Return spring; 20. First flange; 31. Second flange; 32. Through bolt; 33. Third flange; 34. Fastening bolt; 35. Center plate; 36. Drain plate; 37. First valve; 38. Second valve; 39. Third valve; 40. Fourth valve; 41. Partition plate; 42. Fifth valve; 43. Sixth valve; 44. Disc. Detailed Implementation

[0019] Please see Figure 1-24 The present invention will now be described in detail with reference to the accompanying drawings and embodiments: The multi-stage graphite condenser anti-clogging structure of the present invention includes a fixing plate 5 fixedly installed between the end cap 2 and the end plate 3 on the right side, and a plurality of sleeves 6 corresponding to the condenser tubes 4 fixedly installed on the inner bottom wall of the end cap 2 on the left side. Each condenser tube 4 is provided with a cleaning rod assembly. The left end of the cleaning rod assembly is inserted into the corresponding sleeve 6, and the right end of the cleaning rod assembly is provided with an impact assembly. The impact assemblies are all sleeved with the fixing plate 5. When the impact assembly is struck, the impact assembly is used to drive the cleaning rod assembly to reciprocate and rotate, so as to achieve the purpose of cleaning the scale in the condenser tube 4.

[0020] During the use of the condenser, the cooling pipes need to be cleaned regularly. Open the end cap 2 on the right side to expose the pipes. Figure 3 The fixed plate 5 and the impact components on the fixed plate 5 are shown. Each impact component is struck with a hammer, causing the cleaning rod assembly to reciprocate and rotate at high speed inside the condenser tube 4. This achieves the purpose of physically cleaning the inside of the condenser tube 4. If a condenser tube 4 is completely blocked by scale, the impact component will move slowly or not at all when struck with a hammer. In this case, gently tap the impact component several times with a hammer until it moves freely, i.e., reciprocates and rotates. This indicates that the scale inside the condenser tube 4 has been completely loosened. The above operation is performed on each condenser tube 4. After the impact components of each condenser tube 4 can move freely, the fixed plate 5 can be removed to extract the impact components and cleaning rod assembly. Then, a vertical rod with bristles is inserted into the condenser tube 4 and pulled back and forth to clean the inner wall of the condenser tube 4. Then, the inlet valve of the working medium is opened, allowing the working medium to flush out the cleaned foreign objects from the condenser tube 4 and discharge them through the outlet valve.

[0021] The above solution adds an impact component and a cleaning rod component for cleaning. The operation is simple. Each condenser tube 4 only needs to be tapped once by the impact component to ensure that each condenser tube 4 is not completely blocked before regular cleaning can be performed. A vertical rod with bristles can be used for cleaning. By setting up the impact component and cleaning rod component, the problem of seafarers on ocean-going vessels being unable to handle completely blocked condenser tubes 4 is solved.

[0022] In this embodiment, the cleaning rod assembly includes a central rod 7, and several centrifugal rods 8 are hinged to the central rod 7 located inside the condenser tube 4. The left end of the central rod 7 is inserted into the sleeve 6, and the right end of the central rod 7 is connected to the impact assembly. By striking the impact rod assembly, the centrifugal rod 8 assembly is driven to move and rotate back and forth, so that the central rod 7 repeatedly rubs the completely blocked scale in multiple directions, causing the scale to loosen. At the same time, the rotation of the central rod 7 can also drive the centrifugal rods 8 to rotate outward, so that the centrifugal rods 8 can also apply pressure to the scale, making the scale loose, thus preparing for the final conventional brush cleaning.

[0023] In this embodiment, a buffer spring 9 is provided between the left end of the central rod 7 and the inner bottom wall of the sleeve 6. When the impact assembly is struck, the central rod 7 moves to the left and rotates. After the inertial potential energy is lost, the buffer spring 9 pushes the central rod 7 to move to the right to return to its original position. Then the impact assembly is struck again, and the operation is repeated to achieve the purpose of vibrating the scale inside the condenser tube 4 and removing the scale.

[0024] In this embodiment, the left end of the central rod 7 is rotatably connected to the circular plate 10, and the right end of the buffer spring 9 abuts against the circular plate 10. When the central rod 7 rotates, it rotates relative to the circular plate 10 and does not generate torque on the buffer spring 9.

[0025] In this embodiment, the impact assembly includes a sleeve 11 fitted inside the fixed plate 5. The right end of the central rod 7 is inserted into the sleeve 11 and fixedly installed therein. An impact head 12 is fitted inside the sleeve 11. An impact spring 13 is provided between the inner end of the impact head 12 and the inner bottom wall of the sleeve 11. A groove is formed on the outer surface of the sleeve 11. A drive pin 14 is fixedly installed on the outer surface of the impact head 12 and is located in the groove. In use, the impact head 12 is struck with a hammer. The huge inertial potential energy acts on the sleeve 11 through the impact spring 13, causing the sleeve 11 to move to the left. 11 pushes the center rod 7 to the left, while the drive pin 14 drives the sleeve 11 to rotate through the inclined groove. The sleeve 11 drives the center rod 7 to rotate. The center rod 7 moves to the left and compresses the buffer spring 9. After the inertial kinetic energy is lost, the buffer spring 9 pushes the center rod 7 to the right to reset, so as to achieve the purpose of the impact head 12 driving the center rod 7 to move and rotate back and forth. When the impact head 12 is struck, the impact head 12 moves inside the sleeve 11 and compresses the impact spring 13. The impact spring 13 then pops the impact head 12 out, and the drive pin 14 returns to the rightmost end of the inclined groove, waiting for the next strike.

[0026] Sometimes, when the condenser tube 4 is completely blocked, the central rod 7 only exerts a force rotating in one direction, making it difficult to vibrate and loosen the scale. To solve this problem, in this embodiment, two inclined grooves are symmetrically arranged on both sides of the sleeve 11. Each inclined groove includes two symmetrical guide grooves 15, which form a V-shape. Two drive pins 14 are located in their respective inclined grooves. Two guide mechanisms corresponding to the drive pins 14 are fixedly provided on the outer surface of the sleeve 11. In use, when the impact head 12 is struck, the drive pin 14 of the impact head 12 moves from the right end of one of the guide grooves 15 to the left and enters the intersection of the two guide grooves 15. Simultaneously, the sleeve 11 rotates in one direction, and when the drive pin 14 moves to the left, it pushes two guide mechanisms. After being pushed, the two guide mechanisms rebound to the right. The rebound stroke of one guide mechanism is greater than that of the other guide mechanism. The guide mechanism with the longer rebound stroke guides the drive pin 14 into the other guide groove 15. Then, the impact head 12 is struck again, and the drive pin 14 moves to the left in the other guide groove 15, which drives the sleeve 11 to rotate in the other direction. Each time it is struck, the rotation direction of the sleeve 11 is different from the previous rotation direction. The reciprocating rotation of the sleeve 11 vibrates the scale, making it easier to loosen the scale.

[0027] In this embodiment, the guiding mechanism includes a guide cylinder 16 fixedly disposed with the sleeve 11, a push plate 17 sleeved inside the guide cylinder 16, a plurality of push blocks 18 fixedly disposed on the right side of the push plate 17, a limit plate 19 fixedly disposed inside the right end of the guide cylinder 16, a plurality of limit blocks 20 adapted to the push blocks 18 fixedly disposed on the left side of the limit plate 19, a limit groove 21 and a disengagement slope 22 are formed on the left side of the limit block 20; a driving slope 23 adapted to the limit groove 21 is formed on the right end of the push block 18. A guide post 24 is slidably connected to the inner side of the limiting plate 19 in the left-right direction. The guide post 24 can only move left and right relative to the limiting plate 19 and cannot rotate. A guide slope 25 is provided at the right end of the guide post 24. Several driving blocks 26 are fixedly provided on the outer surface of the guide post 24 located between multiple limiting blocks 20. The number of driving blocks 26 is twice that of the push block 18. Two driving surfaces 27 are provided on the left side of the driving block 26. A return spring 28 is fixedly provided between the left side of the push plate 17 and the inner bottom wall of the guide cylinder 16. Figure 18 and 19In the initial state, the guide post 24 is pressed to the left by the drive pin 14, causing the drive block 26 to move to the left. The drive block 26 pushes the push block 18 and the push plate 17 to move to the left, compressing the return spring 28. When the drive slope 23 of the push block 18 is completely disengaged from the limiting groove 21, the drive surface 27 of the drive block 26 forces the push block 18 to rotate, causing the drive slope 23 of the push block 18 to engage with the disengagement slope 22 of the limiting block 20. The return spring 28 then pushes the push plate 17 and the push block 18 to the right, causing the push block 18 to enter between the two limiting blocks 20 (e.g., ...). Figure 22 (Position), the reset spring 28 continues to drive the push plate 17 and the push block 18 to move to the right, so that the push block 18 pushes the drive block 26 to move to the right (as shown in the image). Figure 23 (position), push block 18 to finally move to such a position Figure 24 At this position, the drive block 26 is limited by the limiting plate 19, and the drive surface 27 of the drive block 26 contacts the drive inclined surface 23 of the push block 18. The drive block 26 drives the guide post 24 to move to the right, and the guide post 24 pushes the drive pin 14 into the corresponding guide groove 15 through the guide inclined surface 25. When the guide post 24 is pressed to the left again, the drive block 26 presses the push block 18 to move to the left. When the push block 18 moves to the edge of the limiting groove 21, the drive surface 27 of the drive block 26 forces the push block 18 to rotate into the limiting groove 21 of the limiting block 20 (e.g., Figure 18 and 19 (Position), the push block 18 cannot push the guide post 24 to move to the right, so that the moving post does not guide the drive pin 14.

[0028] The ultimate goal is to achieve the following for a single guiding mechanism: when the guide post 24 moves to the right for the first time, its stroke is short and it does not guide the drive pin 14; when the guide post 24 moves to the right for the second time, its stroke is long and it guides the drive pin 14. When both guiding mechanisms operate simultaneously, if the upper guiding mechanism guides the drive pin 14, the lower guiding mechanism does not guide the drive pin 14; conversely, if the lower guiding mechanism guides the drive pin 14, the upper guiding mechanism does not guide the drive pin 14. For example... Figure 14 This is a schematic diagram showing that the upper guide post 24 does not guide the drive pin 14, as shown. Figure 15 This is a schematic diagram showing how the guide post 24 at the bottom guides the drive pin 14. Figure 15 The distance the guide post 24 in the lower middle moves to the right is greater than... Figure 14 The guide post 24 in the upper middle is long, so Figure 15 The guide post 24 at the bottom of the middle guides the drive pin 14.

[0029] Therefore, when the upper guide post 24 does not function as a guide, the lower guide post 24 guides the drive pin 14 into the corresponding guide groove 15, forming a shape as shown. Figure 14 The rotation of the impact head 12 causes it to rotate; when the upper guide post 24 is activated, the drive pin 14 enters another guide groove 15, and... Figure 14 The position of the drive pin 14 is reversed, which causes the impact head 12 to rotate in the opposite direction.

[0030] In summary, each time the impact head 12 is struck, the direction in which the sleeve 11 rotates due to the cooperation of the drive pin 14 and the guide groove 15 is different from the previous strike. This solves the problem that when the condenser tube 4 is completely blocked, the central rod 7 only has a force rotating in one direction, making it difficult to vibrate and loosen the scale. Continuous striking of the impact head 12 can achieve the purpose of reciprocating rotation of the central rod 7, making it easier to vibrate and loosen the scale.

[0031] Even so, it cannot be guaranteed that the scale inside each condenser tube 4 will be loosened during use. If a certain impact head 12 cannot be moved after continuous tapping, then the condenser tube 4 should be abandoned and the shipyard should use chemical soaking to clean it when the ship is repaired in the dock. However, this has effectively extended the time when the condenser tube 4 of the condenser is completely blocked by more than one-third, increased the possibility of the condenser being used for three years, ensured the ship's sailing time, and saved the ship's operating costs.

[0032] The impact head 12 and the center rod 7 are only used to clean the completely blocked condenser tube 4. After cleaning the condenser tube 4 with the impact head 12 and the center rod 7, the center rod 7 and the impact assembly need to be removed. In order to facilitate the disassembly of the center rod 7 and the impact assembly, in this embodiment, a first flange 29 is fixedly provided on both the left and right sides of the housing 1, and a second flange 30 is fixedly provided on both end caps 2. The first flange 29 and the corresponding second flange 30 are fixed by through bolts 31 to fix the housing 1 and the end caps 2. A third flange 32 is provided between the first flange 29 and the second flange 30 on the right side. The third flange 32 and the first flange 29 on the right side are fixed by fastening bolts 33. The third flange 32 and the first flange 29 clamp and fix the fixing plate 5. The sealing problem can be solved by setting a sealing gasket between the first flange 29 and the fixing plate 5 and between the third flange 32 and the fixing plate 5. A sealing gasket is also provided between the end cap 2 on the right side and the third flange 32 to achieve a seal between the end cap 2 on the right side and the third flange 32.

[0033] Instructions for use: A. Remove the right end cap 2 by removing the through bolt 31, as shown in Figure 3; B. Use a hammer to tap each impact head 12 one by one. An impact head 12 that can move freely indicates that the condenser tube 4 is well cleared; C. If an impact head 12 cannot move, tap it repeatedly until it can move freely (if an impact head 12 cannot move, abandon the clearing of the condenser tube 4); D. Remove the fastening bolt 33 and disassemble the third flange 32 and the fixing plate 5; E. Pull out the freely movable center rod 7 and the impact head 12; F. Use a vertical rod with bristles at one end to insert and re-insert into the condenser tube 4, cleaning the inner wall of the condenser tube 4 with the bristles; G. Reinsert the center rod 7 into the condenser tube 4, inserting the left end of the center rod 7 into the sleeve 6, then install the fixing plate 5 and the third flange 32, and then install the right end cap 2.

[0034] In this embodiment, a central plate 34 is fixedly disposed between the two end plates 3, and each condenser tube 4 is fixedly disposed with the central plate 34. The central plate 34 divides the interior of the housing 1 into two spaces, left and right. The left space is the primary condenser and the right space is the secondary condenser.

[0035] In this embodiment, a flow guide plate 35 is fixedly installed between the left end plate 3 and the center plate 34, and between the right end plate 3 and the center plate 34. A first valve 36, a second valve 37, a third valve 38, and a fourth valve 39 are fixedly installed on the outer surface of the housing 1. The first valve 36 communicates with the space between the left end plate 3 and the flow guide plate 35; the second valve 37 communicates with the space between the left flow guide plate 35 and the center plate 34; the third valve 38 communicates with the space between the center plate 34 and the right flow guide plate 35; and the fourth valve 39 communicates with the space between the right flow guide plate 35 and the end plate 3. The flow path of the cooling medium is as follows: Figure 5 As shown, the cooling medium enters the primary condensing space from the first valve 36, then exits from the second valve 37 and enters the third valve 38, then enters the secondary condensing space, and then exits from the fourth valve 39. Both the primary condensing space and the secondary condensing space are the interlayer spaces between the shell 1 and the condenser tube 4.

[0036] In this embodiment, a partition 40 is fixedly installed between the fixed plate 5 and the right end plate 3. The partition 40 divides the space between the fixed plate 5 and the right end plate 3 into two spaces: the upper space is the discharge space and the lower space is the inlet space. The upper and lower sides of the outer surface of the housing 1 are respectively fixedly installed with a fifth valve 41 and a sixth valve 42. The working medium enters from the lower inlet space through the sixth valve 42 and then enters the condenser tube 4 in the lower half of the housing 1. The working medium is discharged from the left end of the condenser tube 4 into the space between the left end cap 2 and the left end plate 3. Then, the working medium rises into the condenser tube 4 in the upper half of the housing 1. Then, the working medium is discharged from the right end of the condenser tube 4 into the discharge space and then discharged from the fifth valve 41. When the working medium flows in the condenser tube 4, it exchanges heat with the cooling medium outside the condenser tube 4 to achieve the purpose of cooling the working medium.

[0037] In this embodiment, a disk 43 is rotatably connected to the left side of the push plate 17, and the right end of the reset spring 28 is fixedly connected to the disk 43. When the push plate 17 rotates, it rotates relative to the disk 43 and does not generate torque on the reset spring 28.

[0038] The method of using this invention is as follows: A. Remove the right end cap 2 by removing the through bolt 31, as shown in Figure 3; B. Use a hammer to tap the impact head 12 one by one. An impact head 12 that can move freely indicates that the condenser tube 4 is well cleared; C. When encountering an impact head 12 that cannot move, tap it repeatedly until it can move freely (if an impact head 12 cannot move, abandon the clearing of the condenser tube 4); D. Remove the fastening bolt 33 and disassemble the third flange 32 and the fixing plate 5; E. Pull out the freely movable center rod 7 and the impact head 12; F. Use a vertical rod with bristles at one end to insert and re-insert into the condenser tube 4, cleaning the inner wall of the condenser tube 4 with the bristles; G. Reinsert the center rod 7 into the condenser tube 4, inserting the left end of the center rod 7 into the sleeve 6, then install the fixing plate 5 and the third flange 32, and then install the right end cap 2.

Claims

1. A multi-stage graphite condenser anti-clogging structure, characterized in that: It includes a fixing plate fixedly installed between the end cap and the end plate on the right side, and several sleeves corresponding to the condenser tubes fixedly installed on the inner bottom wall of the end cap on the left side. Each condenser tube is equipped with a cleaning rod assembly. The left end of the cleaning rod assembly is inserted into the corresponding sleeve, and the right end of the cleaning rod assembly is equipped with an impact assembly. The impact assemblies are all sleeved with the fixing plate. When the impact assembly is struck, the impact assembly is used to drive the cleaning rod assembly to reciprocate and rotate.

2. The anti-clogging structure for a multi-stage graphite condenser according to claim 1, characterized in that: The cleaning rod assembly includes a central rod, on which several centrifugal rods are hinged. The left end of the central rod is inserted into the sleeve, and the right end of the central rod is connected to the impact assembly.

3. The anti-clogging structure for a multi-stage graphite condenser according to claim 2, characterized in that: A buffer spring is provided between the left end of the central rod 7 and the inner bottom wall of the sleeve.

4. The anti-clogging structure for a multi-stage graphite condenser according to claim 3, characterized in that: The impact assembly includes a sleeve fitted inside a fixed plate, with the right end of a central rod inserted into and fixedly mounted inside the sleeve; an impact head is fitted inside the sleeve, and an impact spring is provided between the inner end of the impact head and the inner bottom wall of the sleeve; a groove is formed on the outer surface of the sleeve, and a drive pin is fixedly mounted on the outer surface of the impact head, with the drive pin located inside the groove.

5. The anti-clogging structure for a multi-stage graphite condenser according to claim 4, characterized in that: The inclined grooves are symmetrically arranged on both sides of the sleeve. Each inclined groove includes two symmetrical guide grooves, which form a V-shape. There are two drive pins located in the corresponding inclined grooves. Two guide mechanisms corresponding to the drive pins are fixedly arranged on the outer surface of the sleeve.

6. The anti-clogging structure for a multi-stage graphite condenser according to claim 5, characterized in that: The guiding mechanism includes a guide cylinder fixedly mounted to the sleeve, a push plate sleeved inside the guide cylinder, several push blocks fixedly mounted on the right side of the push plate, a limit plate fixedly mounted inside the right end of the guide cylinder, several limit blocks adapted to the push blocks fixedly mounted on the left side of the limit plate, and a limit groove and a release slope formed on the left side of the limit block; a driving slope adapted to the limit groove formed on the right end of the push block; a guide post slidably connected in the left-right direction inside the limit plate, a guide slope formed on the right end of the guide post, several driving blocks fixedly mounted on the outer surface of the guide post located between the multiple limit blocks, the number of driving blocks being twice that of the push blocks, two driving surfaces formed on the left side of the driving blocks, and a return spring fixedly mounted between the left side of the push plate and the inner bottom wall of the guide cylinder.

7. The anti-clogging structure for a multi-stage graphite condenser according to claim 1, characterized in that: The shell has a first flange fixedly installed on both the left and right sides, and a second flange fixedly installed on both end caps. The first flange and the corresponding second flange are fixed by through bolts. A third flange is installed between the first flange and the second flange on the right side. The third flange and the first flange on the right side are fixed by fastening bolts. The third flange and the first flange clamp and fix the fixing plate.

8. The anti-clogging structure for a multi-stage graphite condenser according to claim 1, characterized in that: A central plate is fixedly installed between the two end plates, and each condenser tube is fixedly installed with the central plate. The central plate divides the inside of the shell into two spaces, left and right. The left space is the primary condenser and the right space is the secondary condenser.

9. The anti-clogging structure for a multi-stage graphite condenser according to claim 8, characterized in that: A flow guide plate is fixedly installed between the left end plate and the center plate, and between the right end plate and the center plate. A first valve, a second valve, a third valve, and a fourth valve are fixedly installed on the outer surface of the shell. The first valve communicates with the space between the left end plate and the flow guide plate, the second valve communicates with the space between the left flow guide plate and the center plate, the third valve communicates with the space between the center plate and the right flow guide plate, and the fourth valve communicates with the space between the right flow guide plate and the end plate.

10. A method of using a multi-stage graphite condenser anti-clogging structure, comprising the multi-stage graphite condenser anti-clogging structure as described in any one of claims 1-9: A. Remove the right end cap by removing the through bolt; B. Use a hammer to tap the impact head one by one. An impact head that can move freely indicates that the condenser tube is well unblocked. C. When encountering an impact head that cannot move, you need to tap the impact head repeatedly until it can move freely. After repeatedly tapping the impact head that cannot move, give up on cleaning the condenser tube. D. Remove the fastening bolts and disassemble the third flange and the fixing plate; E, the freely movable center rod and impact head are pulled out; F. Use a vertical rod with bristles at one end to insert into the condenser tube and repeatedly push it in and out to clean the inner wall of the condenser tube with the bristles. G. Reinsert the center rod into the condenser tube, insert the left end of the center rod into the sleeve, then install the fixing plate and the third flange, and then install the end cap on the right side.

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