Energy-saving cooling equipment for lubricating oil production

Abstract

The invention relates to the technical field of cooling equipment, in particular to energy-saving type cooling equipment for lubricating oil production. According to the technical scheme, the heat exchanger comprises a main shell, the two ends of the main shell are fixedly connected with a first side shell and a second side shell respectively, the top end of the first side shell is fixedly connected with a tube pass inlet, the bottom of the first side shell is fixedly connected with a tube pass outlet, the inner wall of the first side shell is fixedly connected with a partition plate, and the inner wall of the main shell is fixedly connected with a tube plate; and one side of the tube plate is fixedly connected with a cooling tube. The temperature detector can be used for detecting the temperature difference between one end of the cooling pipe and the top of the inner wall of the first side shell, lubricating oil can be conveniently discharged at a proper time, heat in the lubricating oil can be conducted to the joint of the cooling pipe and the pipe plate through the heat conduction structure, the cooling pipe and the pipe plate can be conveniently preheated in advance, and the cooling efficiency is improved. Thermal shock damage caused by overlarge temperature difference is prevented, and the problem that the tube bundle and the tube plate are prone to cracking when subjected to thermal shock is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of cooling equipment, and particularly to an energy-saving cooling equipment for lubricating oil production. Background Art

[0002] When processing and producing lubricating oil, since the lubricating oil will do work on the lubricating oil through mechanical equipment such as pumps, mixers, and compressors, and mechanical friction will generate heat, the temperature of the lubricating oil will increase. Therefore, cooling equipment is required to cool down the high-temperature lubricating oil. The existing cooling equipment usually uses a heat exchanger to cool the lubricating oil. There are many types of heat exchangers, such as plate heat exchangers, U-shaped tube heat exchangers, floating head heat exchangers, etc. Among them, the floating head heat exchanger is a common shell-and-tube heat exchanger. One end of its pipeline is provided with a floating head, and a sealing structure is adopted between the floating head and the shell to prevent the mixing of the shell-side and tube-side fluids. When the heat exchanger expands due to heat, the floating head can move to one side to avoid equipment damage caused by thermal stress at one end of the heat exchanger.

[0003] However, there is no protection at the connection between the tube bundle and the tube sheet at the other end of the floating head heat exchanger. When the lubricating oil enters the internal tube-side channel, it will first contact the tube sheet and the tube bundle far from the floating head end. Since there is a large temperature difference between the lubricating oil and the tube bundle, sudden contact will generate a thermal shock, and the thermal stress at the connection between the tube sheet and the tube bundle will increase significantly, which will easily cause the tube sheet to crack or the tube bundle to leak, causing trouble to the cooling process of the lubricating oil. Therefore, this application proposes an energy-saving cooling equipment for lubricating oil production. Summary of the Invention

[0004] The purpose of the present invention is to propose an energy-saving cooling equipment for lubricating oil production in view of the problem that the tube bundle and the tube sheet are prone to cracking when suffering from thermal shock in the background art.

[0005] The technical solution of the present invention: An energy-saving cooling equipment for lubricating oil production includes a main housing. First side housing and a second side housing are fixedly connected to both ends of the main housing respectively. A tube-side inlet is fixedly connected to the top of the first side housing, and a tube-side outlet is fixedly connected to the bottom of the first side housing. A partition is fixedly connected to the inner wall of the first side housing. A tube sheet is fixedly connected to the inner wall of the main housing. A cooling tube is fixedly connected to one side of the tube sheet. A floating head is fixedly connected to the inner wall on the other side of the main housing through a sealing sleeve.

[0006] It also includes a neutralization component for reducing the temperature difference between the first side housing, the tube sheet, and the cooling plate. The neutralization component includes a temperature detector fixedly connected to the outer wall of the main housing. A closing plate is fixedly connected to the inner wall of the first side housing, and a circular plate is arranged on the inner wall of the closing plate.

[0007] The neutralization component further includes a heat conduction structure, which includes a heat conduction plate sleeved on the outer wall of the cooling pipe;

[0008] A scraping component for cleaning residues is arranged inside the cooling pipe. The scraping component includes a cleaning ring slidably arranged on the inner wall of the cooling pipe.

[0009] Optionally, the neutralization component further includes a probe fixedly connected to the bottom of the temperature detector. There are two groups of probes, which are symmetrically distributed at the bottom of the temperature detector. One group of probes extends into the inner wall of the first side shell, and the other group of probes is fixedly connected to the outer wall of one group of cooling pipes. A motor is fixedly connected to the top end of the first side shell. The output end of the motor is fixedly connected to an output shaft. A cross plate is fixedly connected to the bottom of the output shaft. A slider is fixedly connected to the bottom of the cross plate. The outer wall of the slider is slidably connected to a sliding frame. A linkage plate is fixedly connected to the bottom of the sliding frame. A plurality of connecting heads are fixedly connected to one side of the linkage plate. A plurality of round holes are opened on one side of the closing plate. The connecting heads are arranged inside the round holes. A round plate is fixedly connected to the outer wall of the connecting head. A sealing gasket is fixedly connected to the outer wall of the round plate. A circulation port is opened on one side of the connecting head.

[0010] Optionally, the heat conduction structure further includes a sleeve fixedly connected to the outer wall of the cooling pipe. The heat conduction plate is fixedly connected to one end of the connecting head. There are two groups of heat conduction plates, which are distributed up and down at one end of the connecting head. A plurality of arc-shaped pieces are fixedly connected between the two groups of heat conduction plates. A convex strip is fixedly connected to the outer wall of one end of the cooling pipe. A groove is opened at the bottom of the heat conduction plate. The size of the convex strip is smaller than that of the groove.

[0011] Optionally, the scraping component further includes a central rod fixedly connected to the center of one end of the connecting head. A stop block is fixedly connected to the outer wall of the central rod. The cleaning ring is rotatably connected to the outer wall of the stop block. A cleaning piece is fixedly connected to the outer wall of the cleaning ring. The cleaning piece fits on the inner wall of the cooling pipe. A spiral strip is fixedly connected to the inner wall of the cooling pipe. An inclined groove is opened on the outer wall of the cleaning ring. The inclined groove is sleeved on the outer wall of the spiral strip.

[0012] Optionally, the scraping component further includes a conveying structure, which includes a connecting hose fixedly connected to the bottom of the slider. The bottom of the connecting hose is fixedly connected to the top end of the linkage plate. A first cavity is opened in the inner wall of the output shaft. A plug block is arranged on one side of the first cavity. A second cavity is opened in the inner wall of the cross plate. A third cavity is opened in the inner wall of the linkage plate. A fourth cavity is opened in the inner wall of the connecting head. The central rod and the slider are both hollow. A first round opening is opened at the bottom of the central rod. A second round opening is opened in the inner wall of the cleaning ring.

[0013] Optionally, a limiting piece is fixedly connected to the bottom of the linkage plate, a limiting strip is fixedly connected to the top of the partition plate, the limiting piece is slidably connected to the top of the limiting strip, two side strips are fixedly connected to the top of the partition plate, and the two side strips are arranged on both sides of the linkage plate.

[0014] Optionally, a toothed ring is rotatably connected to the bottom of the tube-side inlet, a filter is fixedly connected to the bottom of the toothed ring, and a magnetic attraction structure is arranged inside the filter.

[0015] Optionally, an L-shaped plate is fixedly connected to one side of the linkage plate, a rack is fixedly connected to the top of the L-shaped plate, the rack is engaged with one side of the gear, a guiding strip is fixedly connected to the top of the rack, a guiding frame is fixedly connected to the top of the inner wall of the first side shell, and the guiding strip is slidably connected to the inner wall of the guiding frame.

[0016] Optionally, a shell-side inlet is fixedly connected to the bottom of one side of the main shell, a shell-side outlet is fixedly connected to the top of the other side of the main shell, a plurality of baffle plates are fixedly connected to the inner wall of the main shell, the baffle plates are fixedly connected to the outer walls of a plurality of cooling tubes, and the cross-sectional shape of the baffle plate is triangular.

[0017] Optionally, the cleaning piece, the connecting hose and the sealing gasket are made of polytetrafluoroethylene, and the heat conducting plate and the connecting head are made of aluminum silicon alloy.

[0018] Compared with the prior art, the present application includes at least one of the following beneficial technical effects: By arranging a temperature detector, the temperature difference between one end of the cooling tube and the top of the inner wall of the first side shell can be detected, which is convenient for discharging the lubricating oil at an appropriate time. By arranging a heat conducting structure, the heat in the lubricating oil can be conducted to the connection part between the cooling tube and the tube sheet, which is convenient for preheating the cooling tube and the tube sheet in advance and preventing the thermal shock damage caused by too large temperature difference, and solves the problem that the tube bundle and the tube sheet are prone to cracking when suffering from thermal shock. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of an energy-saving cooling device for lubricating oil production;

[0020] Figure 2 is a schematic diagram of the overall sectional structure of an energy-saving cooling device for lubricating oil production;

[0021] Figure 3 is Figure 2 the enlarged structural schematic diagram at A of

[0022] Figure 4 is Figure 3 the enlarged structural schematic diagram at B of

[0023] Figure 5 is a schematic diagram of the neutralization assembly structure;

[0024] Figure 6 is a schematic diagram of the heat conduction structure;

[0025] Figure 7 is a schematic diagram of the structure of the scraping component;

[0026] Figure 8 is a schematic diagram of the cross-sectional structure of the cleaning sheet;

[0027] Figure 9 is Figure 8 an enlarged schematic diagram of the structure at position C of ;

[0028] Figure 10 is a schematic diagram of the filter structure;

[0029] Figure 11 is a schematic diagram of the cross-sectional structure of the tube side inlet;

[0030] Figure 12 is Figure 11 an enlarged schematic diagram of the structure at position D of .

[0031] Reference numerals: 1, main housing; 2, first side housing; 3, second side housing; 4, tube side inlet; 5, tube side outlet; 6, shell side inlet; 7, shell side outlet; 8, partition; 9, tube sheet; 10, cooling tube; 11, floating head; 12, temperature detector; 13, probe; 14, motor; 15, output shaft; 16, cross plate; 17, slider; 18, sliding frame; 19, linkage plate; 20, connector; 21, closing plate; 22, flow port; 23, circular plate; 24, heat conducting plate; 25, arc-shaped piece; 26, sleeve; 27, convex strip; 28, center rod; 29, spiral strip; 30, stop block; 31, cleaning ring; 32, cleaning sheet; 33, first cavity; 34, plug block; 35, second cavity; 36, connecting hose; 37, third cavity; 38, fourth cavity; 39, first circular opening; 40, second circular opening; 41, limiting piece; 42, limiting strip; 43, side strip; 44, filter; 45, toothed ring; 46, L-shaped plate; 47, rack; 48, guiding strip; 49, guiding frame; 50, baffle plate. Detailed implementation manners

[0032] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0033] Embodiment 1

[0034] As Figures 1 - 12As shown in the figure, an energy-saving cooling device for lubricating oil production proposed by the present invention includes a main housing 1. Both ends of the main housing 1 are fixedly connected with a first side housing 2 and a second side housing 3 respectively. A tube side inlet 4 is fixedly connected to the top of the first side housing 2, and a tube side outlet 5 is fixedly connected to the bottom of the first side housing 2. A partition 8 is fixedly connected to the inner wall of the first side housing 2. A tube sheet 9 is fixedly connected to the inner wall of the main housing 1. A cooling tube 10 is fixedly connected to one side of the tube sheet 9. The other inner wall of the main housing 1 is fixedly connected with a floating head 11 through a sealing sleeve.

[0035] The cooling device further includes a neutralization component for reducing the temperature difference between the first side housing 2, the tube sheet 9, and the cooling plate. The neutralization component includes a temperature detector 12 fixedly connected to the outer wall of the main housing 1. A closing plate 21 is fixedly connected to the inner wall of the first side housing 2, and a circular plate 23 is arranged on the inner wall of the closing plate 21.

[0036] The neutralization component further includes a heat conduction structure. The heat conduction structure includes a heat conduction plate 24 sleeved on the outer wall of the cooling tube 10.

[0037] A scraping component for cleaning residues is arranged inside the cooling tube 10. The scraping component includes a cleaning ring 31 slidably arranged on the inner wall of the cooling tube 10.

[0038] To solve the problem that the tube bundle and the tube sheet 9 are prone to cracking when suffering from thermal shock, when the lubricating oil needs to be cooled, the lubricating oil can flow into the first side shell 2 through the tube side inlet 4. The lubricating oil can be separated at the top of the inner wall of the first side shell 2 through the partition plate 8. At this time, the closing plate 21 can be closed by the circular plate 23. The temperature detector 12 is a dual-channel detector, which can simultaneously measure the temperature at the top of the inner wall of the first side shell 2 and the outer wall of the cooling tube 10. By setting the heat conduction structure, the heat at the top of the inner wall of the first side shell 2 can be transferred into the cooling tube 10, so as to preheat the area at the connection between the cooling tube 10 and the tube sheet 9. Until the temperature difference between one end of the cooling tube 10 and the top of the inner wall of the first side shell 2 reaches an appropriate value, the circular plate 23 can be moved to one side to open one side of the closing plate 21, so that the lubricating oil can flow into the preheated cooling tube 10. Since the connection between the cooling tube 10 and the tube sheet 9 has been preheated, the temperature difference is greatly reduced. Therefore, the thermal stress caused by the lubricating oil when passing through the cooling tube 10 and the tube sheet 9 will be significantly reduced, so as to protect the cooling tube 10 and the tube sheet 9 from cracking due to thermal shock. Subsequently, the cooling liquid inside the main housing 1 is used to cool the cooling tube 10, so as to cool the lubricating oil. After the cooling treatment of the lubricating oil is completed, since temperature gradient is likely to occur on the side of the cooling tube 10 close to the tube sheet 9, resulting in changes in solubility and precipitation of deposits such as wax, sludge and carbon deposits, after the cooling treatment of the lubricating oil is completed, the cleaning liquid can enter the cooling tube 10 through the first side shell 2, and the cleaning ring 31 reciprocates on the inner wall of the cooling tube 10 to clean the deposits inside the cooling tube 10.

[0039] As Figures 1 - 5 shown, the neutralization assembly further includes a probe 13. The probe 13 is fixedly connected to the bottom of the temperature detector 12. There are two groups of the probes 13, which are symmetrically distributed at the bottom of the temperature detector 12. One group of the probes 13 extends into the inner wall of the first side shell 2, and the other group of the probes 13 is fixedly connected to the outer wall of one group of the cooling tubes 10. A motor 14 is fixedly connected to the top of the first side shell 2. The output end of the motor 14 is fixedly connected to an output shaft 15. The bottom of the output shaft 15 is fixedly connected to a cross plate 16. The bottom of the cross plate 16 is fixedly connected to a slider 17. The outer wall of the slider 17 is slidably connected to a sliding frame 18. The bottom of the sliding frame 18 is fixedly connected to a linkage plate 19. One side of the linkage plate 19 is fixedly connected to a plurality of connecting heads 20. A plurality of round holes are formed in one side of the closing plate 21. The connecting heads 20 are arranged in the inner walls of the round holes. The circular plate 23 is fixedly connected to the outer walls of the connecting heads 20. A sealing gasket is fixedly connected to the outer wall of the circular plate 23. A circulation port 22 is formed in one side of the connecting head 20.

[0040] By setting two sets of probes 13, it is beneficial to simultaneously detect the temperature inside the first side shell 2 and the outer wall of a set of cooling pipes 10, facilitating real-time detection of the temperature difference. In the initial state, multiple sets of wafers are arranged on the inner walls of multiple sets of round holes, and the round holes are sealed by gaskets arranged on the outer walls of the wafers to prevent lubricating oil from flowing into one side of the tube sheet 9. After detecting that the temperature difference reaches an appropriate range, the motor 14 can be started. The output shaft 15 arranged at the output end of the motor 14 is driven to rotate by 90 degrees. When the output shaft 15 rotates, the bottom cross plate 16 and the slider 17 will rotate together. Since the slider 17 is slidably connected to the inner wall of the sliding frame 18, when the slider 17 rotates, it will drive the sliding frame 18 and the linkage plate 19 to move horizontally to one side. When the linkage plate 19 moves to one side, it can drive multiple sets of connectors 20 arranged on one side to move towards the cooling pipe 10, so that multiple sets of round plates 23 are moved out of the round holes, enabling the lubricating oil to flow into the space between the closing plate 21 and the tube sheet 9 through the round holes arranged on the closing plate 21 and flow into the cooling pipe 10 through the flow ports 22 arranged on the connectors 20, thereby cooling the lubricating oil.

[0041] As Figure 6 shown, the heat conduction structure further includes a sleeve 26, the sleeve 26 is fixedly connected to the outer wall of the cooling pipe 10, a heat conduction plate 24 is fixedly connected to one end of the connector 20, there are two sets of heat conduction plates 24, which are arranged vertically at one end of the connector 20, and multiple sets of arc-shaped pieces 25 are fixedly connected between the two sets of heat conduction plates 24. A convex strip 27 is fixedly connected to the outer wall of one end of the cooling pipe 10, a groove is formed at the bottom of the heat conduction plate 24, and the size of the convex strip 27 is smaller than that of the groove.

[0042] In the initial state, one end of the connector 20 will be in contact with the high-temperature lubricating oil and can transfer the heat of the high-temperature lubricating oil to the connector 20. One end of the connector 20 is provided with a heat conduction plate 24, and the other end of the heat conduction plate 24 is arranged inside the sleeve 26. Therefore, the heat on the connector 20 can be transferred to the outer wall of the cooling pipe 10, causing the cooling pipe 10 to continuously heat up. The arc-shaped pieces 25 arranged between the two sets of heat conduction plates 24 can not only play a stabilizing role but also evenly distribute the heat to both sides of the cooling pipe 10. By arranging a convex strip 27 at one end of the cooling pipe 10, it is convenient to limit the position through the convex strip 27 and the groove when the heat conduction plate 24 slides. Since the size of the convex strip 27 is smaller than that of the groove, it can prevent jamming after thermal expansion.

[0043] As Figures 7 - 9As shown, the scraping assembly further includes a central rod 28. The central rod 28 is fixedly connected to the center of one end of the connecting head 20. A stopper 30 is fixedly connected to the outer wall of the central rod 28. The cleaning ring 31 is rotatably connected to the outer wall of the stopper 30. A cleaning piece 32 is fixedly connected to the outer wall of the cleaning ring 31. The cleaning piece 32 is attached to the inner wall of the cooling pipe 10. A spiral strip 29 is fixedly connected to the inner wall of the cooling pipe 10. An inclined groove is formed in the outer wall of the cleaning ring 31. The inclined groove is sleeved on the outer wall of the spiral strip 29.

[0044] When it is necessary to clean the inside of the cooling pipe 10, the motor 14 can drive the linkage plate 19 and the connecting head 20 to move to one side. When the connecting head 20 moves, it can drive the central rod 28 and the stopper 30 to move together. When the central rod 28 and the stopper 30 move, they will drive the cleaning ring 31 to move together. When the cleaning ring 31 moves, it can scrape the deposits in the cooling pipe 10 through the cleaning piece 32. While the cleaning ring 31 is moving, the inclined groove provided on one side of it will slide on the outer wall of the spiral strip 29. Thus, through the guidance of the spiral strip 29 and the inclined groove, the cleaning ring 31 and the cleaning piece 32 will rotate when sliding, which is different from single sliding cleaning and can clean the deposits on the inner wall of the cooling pipe 10 more efficiently.

[0045] As Figure 4 and Figure 9 As shown, the scraping assembly further includes a conveying structure. The conveying structure includes a connecting hose 36. The connecting hose 36 is fixedly connected to the bottom of the slider 17. The bottom of the connecting hose 36 is fixedly connected to the top of the linkage plate 19. A first cavity 33 is formed in the inner wall of the output shaft 15. A plug 34 is arranged on one side of the first cavity 33. A second cavity 35 is formed in the inner wall of the cross plate 16. A third cavity 37 is formed in the inner wall of the linkage plate 19. A fourth cavity 38 is formed in the inner wall of the connecting head 20. The central rod 28 and the slider 17 are both hollow. A first round opening 39 is formed at the bottom of the central rod 28. A second round opening 40 is formed in the inner wall of the cleaning ring 31.

[0046] When cleaning the cooling pipe 10, the plug 34 can be opened in advance, and sodium carbonate particles are added into the first cavity 33. After entering the first cavity 33, the sodium carbonate particles will fall into the second cavity 35 downward due to gravity. Since the bottom of the slider 17 is provided with a connecting hose 36, the sodium carbonate particles will fall into the connecting hose 36 through the inner wall of the slider 17. Through the connecting hose 36, when the slider 17 slides, the communication between the inner wall of the slider 17 and the third cavity 37 can be maintained. After passing through the third cavity 37, the sodium carbonate particles will move towards the fourth cavity 38 on the inner wall of the connector 20 until they enter the inner wall of the central rod 28. When the cleaning ring 31 moves, it will rotate. Therefore, when the second round opening 40 on the cleaning ring 31 aligns with the first round opening 39, the sodium carbonate particles on the inner wall of the central rod 28 will fall into the cooling pipe 10 through the first round opening 39 and the second round opening 40. After the sodium carbonate particles dissolve in water, they can well neutralize the acidic deposits in the cooling pipe 10, which is more conducive to cleaning the deposits through the cleaning ring 31 and the cleaning piece 32.

[0047] As Figure 5 shown, a limiting piece 41 is fixedly connected to the bottom of the linkage plate 19, a limiting strip 42 is fixedly connected to the top of the partition plate 8, the limiting piece 41 is slidably connected to the top of the limiting strip 42, and two groups of side strips 43 are fixedly connected to the top of the partition plate 8. The two groups of side strips 43 are arranged on both sides of the linkage plate 19.

[0048] By setting the limiting strip 42 and the side strips 43, when the linkage plate 19 moves, through the cooperation of the limiting piece 41 at the bottom of the linkage plate 19 and the limiting strip 42, a guiding effect can be provided for the center of the linkage plate 19, and the two groups of side strips 43 can guide both sides of the linkage plate 19 to prevent the linkage plate 19 from shifting during movement.

[0049] As Figure 10 shown, a gear ring 45 is rotatably connected to the bottom of the tube pass inlet 4, a filter 44 is fixedly connected to the bottom of the gear ring 45, and a magnetic structure is arranged inside the filter 44.

[0050] By setting the gear ring 45 and the filter 44 at the bottom of the tube pass inlet 4, the lubricating oil entering from the tube pass inlet 4 can be pre-filtered, thereby improving the purity of the lubricating oil. By arranging a magnetic structure (prior art, which can intercept metal debris inside the filter 44 through magnetic attraction) inside the filter 44 to adsorb the metal debris, it can prevent the metal debris from entering the cooling pipe 10 and causing blockage or scratching the cooling pipe 10.

[0051] As Figure 10As shown, one side of the linkage plate 19 is fixedly connected with an L-shaped plate 46. The top end of the L-shaped plate 46 is fixedly connected with a rack 47. The rack 47 meshes with one side of a gear. The top end of the rack 47 is fixedly connected with a guide bar 48. The top end of the inner wall of the first side shell 2 is fixedly connected with a guide frame 49. The guide bar 48 is slidably connected with the inner wall of the guide frame 49.

[0052] When the linkage plate 19 moves, it can drive the L-shaped plate 46 and the rack 47 to move to one side together. When the rack 47 moves, it will drive the gear meshing on one side to rotate. When the gear rotates, it will drive the filter 44 at the bottom to rotate. When the filter 44 rotates, it can shake the impurities originally blocked at the filter holes, and under the action of centrifugal force and fluid, make the impurities more evenly distributed, preventing the accumulation of impurities from causing blockage. By setting the guide bar 48 and the guide frame 49, it is beneficial to guide the movement of the rack 47.

[0053] As Figure 2 shown, the bottom of one side of the main housing 1 is fixedly connected with a shell-side inlet 6. The top end of the other side of the main housing 1 is fixedly connected with a shell-side outlet 7. The inner wall of the main housing 1 is fixedly connected with multiple groups of baffle plates 50. The baffle plates 50 are fixedly connected with the outer walls of multiple groups of cooling tubes 10. The cross-sectional shape of the baffle plate 50 is triangular.

[0054] By setting the shell-side inlet 6 and the shell-side outlet 7, the cooling fluid can enter the main housing 1 and cool the cooling tubes 10. The cross-section of the baffle plate 50 is triangular, which can improve the stability of the connection between the baffle plate 50 and the inner wall of the main housing 1. At the same time, the inclined surface of the baffle plate 50 is also beneficial for the fluid to flow through both sides of the baffle plate 50.

[0055] As Figure 4 and Figure 8 shown, the cleaning piece 32, the connecting hose 36 and the sealing gasket are made of polytetrafluoroethylene, and the heat conducting plate 24 and the connecting head 20 are made of aluminum silicon alloy.

[0056] The polytetrafluoroethylene material has good high temperature resistance and can keep the cleaning piece 32, the connecting hose 36 and the sealing gasket working when cooling the lubricating oil. While the aluminum silicon alloy has good thermal conductivity and at the same time has relatively high strength, so it can be used as the material of the heat conducting plate 24 and the connecting head 20 for a long time.

[0057] In this embodiment, to solve the problem that the tube bundle and the tube sheet 9 are prone to cracking when suffering from thermal shock, when the lubricating oil needs to be cooled, the lubricating oil can flow into the first side shell 2 through the tube side inlet 4. The lubricating oil can be separated at the top of the inner wall of the first side shell 2 through the partition plate 8. At this time, the closing plate 21 can be closed by the circular plate 23. The temperature detector 12 is a dual-channel detector. By setting two groups of probes 13, it is beneficial to detect the temperature inside the first side shell 2 and the outer wall of a group of cooling tubes 10 at the same time, facilitating real-time detection of the temperature difference. In the initial state, one end of the connector 20 will contact the high-temperature lubricating oil and transfer the heat of the high-temperature lubricating oil to the connector 20. One end of the connector 20 is provided with a heat conduction plate 24, and the other end of the heat conduction plate 24 is arranged in the sleeve 26. Therefore, the heat on the connector 20 can be transferred to the outer wall of the cooling tube 10, causing the cooling tube 10 to continuously heat up, so as to preheat the area at the connection between the cooling tube 10 and the tube sheet 9. The arc-shaped piece 25 arranged between the two groups of heat conduction plates 24 can not only play a stabilizing role but also evenly distribute the heat to both sides of the cooling tube 10. By arranging a rib 27 at one end of the cooling tube 10, it is convenient to limit the position through the rib 27 and the groove when the heat conduction plate 24 slides. The size of the rib 27 is smaller than that of the groove, which can prevent jamming after thermal expansion. At this time, multiple circular plates are arranged on the inner walls of multiple circular holes, and the circular holes are closed by the sealing gaskets arranged on the outer walls of the circular plates to prevent the lubricating oil from flowing into one side of the tube sheet 9. After detecting that the temperature difference reaches the appropriate range, the motor 14 can be started. The output shaft 15 arranged at the output end of the motor 14 rotates 90 degrees. When the output shaft 15 rotates, it drives the cross plate 16 and the slider 17 at the bottom to rotate together. Since the slider 17 is slidably connected to the inner wall of the sliding frame 18, when the slider 17 rotates, it drives the sliding frame 18 and the linkage plate 19 to move horizontally to one side. When the linkage plate 19 moves to one side, it drives multiple groups of connectors 20 arranged on one side to move towards the cooling tube 10, causing multiple circular plates 23 to move out of the circular holes, so that the lubricating oil can flow into the space between the closing plate 21 and the tube sheet 9 through the circular holes arranged on the closing plate 21 and flow into the cooling tube 10 through the flow ports 22 arranged on the connectors 20, thereby cooling the lubricating oil;

[0058] After the cooling treatment of the lubricating oil is completed, since temperature gradients are likely to occur on the side of the cooling pipe 10 close to the tube sheet 9, resulting in changes in solubility and the precipitation of deposits such as wax, sludge, and carbon deposits, after the cooling treatment of the lubricating oil is completed, the plug 34 can be opened in advance, and sodium carbonate particles are added into the first cavity 33. The sodium carbonate particles will fall downward into the second cavity 35 under the action of gravity after entering the first cavity 33. Since the connecting hose 36 is provided at the bottom of the slider 17, the sodium carbonate particles will fall into the connecting hose 36 through the inner wall of the slider 17, and through the connecting hose 36, when the slider 17 slides, the communication between the inner wall of the slider 17 and the third cavity 37 can be maintained. After passing through the third cavity 37, the sodium carbonate particles will move towards the fourth cavity 38 on the inner wall of the connector 20 until they enter the inner wall of the central rod 28. The cleaning liquid can be passed into the cooling pipe 10 through the first side shell 2, and the linkage plate 19 and the connector 20 are driven by the motor 14 to move to one side. When the connector 20 moves, the central rod 28 and the stopper 30 can be driven to move together, and when the central rod 28 and the stopper 30 move, the cleaning ring 31 can be driven to move together. When the cleaning ring 31 moves, the deposits in the cooling pipe 10 can be scraped off by the cleaning piece 32. While the cleaning ring 31 is moving, the inclined groove provided on one side thereof will slide on the outer wall of the spiral bar 29, so that under the guidance of the spiral bar 29 and the inclined groove, the cleaning ring 31 and the cleaning piece 32 will rotate when sliding. Different from single sliding cleaning, the deposits on the inner wall of the cooling pipe 10 can be cleaned more efficiently. When the cleaning ring 31 rotates and the second round opening 40 on the cleaning ring 31 aligns with the first round opening 39, the sodium carbonate particles on the inner wall of the central rod 28 will fall into the cooling pipe 10 through the first round opening 39 and the second round opening 40. After the sodium carbonate particles are dissolved in water, they can well neutralize the acidic deposits in the cooling pipe 10, which is more conducive to cleaning the deposits by the cleaning ring 31 and the cleaning piece 32;

[0059] By providing a toothed ring 45 and a filter 44 at the bottom of the tube-side inlet 4, the lubricating oil entering from the tube-side inlet 4 can be pre-filtered, thereby improving the purity of the lubricating oil. By providing a magnetic adsorption structure inside the filter 44 to adsorb metal debris, it is possible to prevent metal debris from entering the cooling pipe 10 and causing blockage or scratching the cooling pipe 10. When the linkage plate 19 moves, the L-shaped plate 46 and the rack 47 can be driven to move to one side together. When the rack 47 moves, the gear meshing on one side will be driven to rotate. When the gear rotates, the filter 44 at the bottom will be driven to rotate. When the filter 44 rotates, the impurities originally blocking the filter holes can be shaken, and under the action of centrifugal force and fluid, the impurities will be more evenly distributed, preventing the accumulation of impurities and causing blockage.

[0060] The above specific embodiments are only several alternative embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. An energy-saving cooling device for lubricating oil production, comprising a main shell (1), wherein two ends of the main shell (1) are respectively fixedly connected to a first side shell (2) and a second side shell (3), the top end of the first side shell (2) is fixedly connected to a tube-side inlet (4), the bottom of the first side shell (2) is fixedly connected to a tube-side outlet (5), the inner wall of the first side shell (2) is fixedly connected to a partition plate (8), the inner wall of the main shell (1) is fixedly connected to a tube sheet (9), one side of the tube sheet (9) is fixedly connected to a cooling tube (10), and the inner wall of the other side of the main shell (1) is fixedly connected to a floating head (11) through a sealing sleeve, characterized in that: It also includes a neutralization component for reducing the temperature difference between the first side shell (2) and the tube plate (9) and the cooling plate, the neutralization component including a temperature detector (12), the temperature detector (12) being fixedly connected to the outer wall of the main shell (1), the inner wall of the first side shell (2) being fixedly connected to a closing plate (21), the inner wall of the closing plate (21) being provided with a circular plate (23); The neutralization component further comprises a heat-conducting structure, wherein the heat-conducting structure comprises a heat-conducting plate (24), and the heat-conducting plate (24) is sleeved on the outer wall of the cooling pipe (10); A scraping assembly for cleaning residues is arranged inside the cooling pipe (10), and the scraping assembly comprises a cleaning ring (31), and the cleaning ring (31) is slidably arranged on the inner wall of the cooling pipe (10).

2. The energy-saving cooling equipment for lubricating oil production according to claim 1, characterized in that: The neutralization component further comprises a probe (13), wherein the probe (13) is fixedly connected to the bottom of the temperature detector (12), wherein two groups of the probes (13) are provided and are symmetrically distributed at the bottom of the temperature detector (12), wherein one group of the probes (13) extends into the inner wall of the first side shell (2), and the other group of the probes (13) is fixedly connected to the outer wall of a group of the cooling tubes (10), wherein the top end of the first side shell (2) is fixedly connected to a motor (14), the output end of the motor (14) is fixedly connected to an output shaft (15), and the bottom of the output shaft (15) is fixedly connected to a transverse plate (16) The bottom of the horizontal plate (16) is fixedly connected with a slider (17), the outer wall of the slider (17) is slidably connected with a slide frame (18), the bottom of the slide frame (18) is fixedly connected with a linkage plate (19), one side of the linkage plate (19) is fixedly connected with multiple groups of connectors (20), one side of the closing plate (21) is provided with multiple groups of circular holes, the connectors (20) are arranged on the inner walls of the circular holes, the circular plate (23) is fixedly connected to the outer wall of the connector (20), the outer wall of the circular plate (23) is fixedly connected with a sealing gasket, and one side of the connector (20) is provided with a flow port (22).

3. The energy-saving cooling equipment for lubricating oil production according to claim 2, characterized in that: The heat-conducting structure also includes a sleeve (26), the sleeve (26) is fixedly connected to the outer wall of the cooling tube (10), the heat-conducting plate (24) is fixedly connected to one end of the connecting head (20), two groups of the heat-conducting plates (24) are arranged, and are distributed up and down at one end of the connecting head (20), and multiple groups of arc-shaped plates (25) are fixedly connected between the two groups of heat-conducting plates (24), a convex strip (27) is fixedly connected to the outer wall of one end of the cooling tube (10), and a groove is provided at the bottom of the heat-conducting plate (24), and the size of the convex strip (27) is smaller than the groove.

4. The energy-saving cooling equipment for lubricating oil production according to claim 3, characterized in that: The scraping assembly also includes a center rod (28), the center rod (28) is fixedly connected to the center of one end of the connecting head (20), the outer wall of the center rod (28) is fixedly connected to a stopper (30), the cleaning ring (31) is rotatably connected to the outer wall of the stopper (30), the outer wall of the cleaning ring (31) is fixedly connected to a cleaning sheet (32), the cleaning sheet (32) is attached to the inner wall of the cooling pipe (10), the inner wall of the cooling pipe (10) is fixedly connected to a spiral strip (29), and the outer wall of the cleaning ring (31) is provided with an oblique groove, and the oblique groove is sleeved on the outer wall of the spiral strip (29).

5. The energy-saving cooling equipment for lubricating oil production according to claim 4, characterized in that: The scraping assembly also includes a conveying structure, which includes a connecting hose (36), the connecting hose (36) is fixedly connected to the bottom of the slider (17), the bottom of the connecting hose (36) is fixedly connected to the top of the linkage plate (19), the inner wall of the output shaft (15) is provided with a first cavity (33), one side of the first cavity (33) is provided with a plug (34), the inner wall of the transverse plate (16) is provided with a second cavity (35), the inner wall of the linkage plate (19) is provided with a third cavity (37), the inner wall of the connector (20) is provided with a fourth cavity (38), the center rod (28) and the slider (17) are both hollow, the bottom of the center rod (28) is provided with a first circular opening (39), and the inner wall of the cleaning ring (31) is provided with a second circular opening (40).

6. The energy-saving cooling equipment for lubricating oil production according to claim 5, characterized in that: The bottom of the linkage plate (19) is fixedly connected to a limiting plate (41), the top of the partition plate (8) is fixedly connected to a limiting strip (42), the limiting plate (41) is slidably connected to the top of the limiting strip (42), and the top of the partition plate (8) is fixedly connected to two groups of side strips (43), and the two groups of side strips (43) are arranged on both sides of the linkage plate (19).

7. The energy-saving cooling equipment for lubricating oil production according to claim 6, characterized in that: The bottom of the pipe inlet (4) is rotatably connected to a gear ring (45), the bottom of the gear ring (45) is fixedly connected to a filter (44), and a magnetic attraction structure is arranged inside the filter (44).

8. The energy-saving cooling device for lubricating oil production according to claim 7, characterized in that: An L-shaped plate (46) is fixedly connected to one side of the linkage plate (19), a rack (47) is fixedly connected to the top end of the L-shaped plate (46), the rack (47) is meshed with one side of the gear, a guide bar (48) is fixedly connected to the top end of the rack (47), a guide frame (49) is fixedly connected to the top end of the inner wall of the first side shell (2), and the guide bar (48) is slidably connected to the inner wall of the guide frame (49).

9. The energy-saving cooling device for lubricating oil production according to claim 8, characterized in that: A shell-side inlet (6) is fixedly connected to the bottom of one side of the main shell (1), a shell-side outlet (7) is fixedly connected to the top of the other side of the main shell (1), a plurality of baffles (50) are fixedly connected to the inner wall of the main shell (1), the baffles (50) are fixedly connected to the outer walls of a plurality of cooling tubes (10), and the cross-sectional shape of the baffles (50) is triangular.

10. The energy-saving cooling device for lubricating oil production according to claim 9, characterized in that: The cleaning sheet (32), the connecting hose (36) and the sealing pad are made of polytetrafluoroethylene, and the heat conducting plate (24) and the connecting head (20) are made of aluminum silicon alloy.

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