CN118423255A - Oil feeding device of large-scale air compressor - Google Patents
Oil feeding device of large-scale air compressor Download PDFInfo
- Publication number
- CN118423255A CN118423255A CN202410885987.3A CN202410885987A CN118423255A CN 118423255 A CN118423255 A CN 118423255A CN 202410885987 A CN202410885987 A CN 202410885987A CN 118423255 A CN118423255 A CN 118423255A
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- Prior art keywords
- cylinder
- annular sleeve
- threaded rod
- air
- pressure release
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000110 cooling liquid Substances 0.000 claims abstract description 38
- 238000001816 cooling Methods 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 239000012535 impurity Substances 0.000 claims abstract description 17
- 239000001307 helium Substances 0.000 claims description 52
- 229910052734 helium Inorganic materials 0.000 claims description 52
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 52
- 239000007789 gas Substances 0.000 claims description 14
- 238000003860 storage Methods 0.000 claims description 12
- 238000004064 recycling Methods 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 93
- 239000010687 lubricating oil Substances 0.000 description 14
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
- B08B9/0436—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes provided with mechanical cleaning tools, e.g. scrapers, with or without additional fluid jets
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B23/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/02—Lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/02—Arrangements for conditioning of lubricants in the lubricating system by cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/06—Arrangements for conditioning of lubricants in the lubricating system by filtration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Compressor (AREA)
Abstract
The invention relates to the technical field of air compressors, in particular to an oil feeding device of a large-sized air compressor, which comprises an oil tank, an oil pump, an oil filter and a cooler, wherein the cooler comprises an outer cylinder body, a hot oil pipe, a pipe plate, a sealing cover and a plurality of baffle plates, the baffle plates are distributed at equal intervals along the axis of a cooling cavity, the hot oil pipe is inserted into through holes arranged on the baffle plates, and the inner walls of the through holes are attached to the outer walls of the hot oil pipe; the technical scheme is that the driving unit drives the threaded rod to perform forward and reverse reciprocating rotation so as to drive the baffle to reciprocate in the axial direction of the hot oil pipe, and impurities affecting the heat transfer efficiency of the cooling liquid are cleaned.
Description
Technical Field
The invention relates to the technical field of air compressors, in particular to an oil feeding device of a large-sized air compressor.
Background
An air compressor is a device for compressing a gas. Most air compressors are reciprocating piston, rotary vane or rotary screw. The main function of the oil feeding device is to provide enough lubricating oil for each lubricating component of the air compressor so as to reduce friction and abrasion, protect machine parts, prolong the service life of equipment and ensure the efficient operation of the equipment. The oil circuit system of the air compressor is used for guaranteeing that each lubrication component of the air compressor is well lubricated, the air compressor runs for a long time, the oil temperature of the oil circuit system can rise, the lubrication performance is reduced, and the working performance of the air compressor is affected.
The cooler in the prior art generally adopts cooling liquid to cool down and cool down an oil pipe for conveying lubricating oil with a certain temperature, but in long-term use, the cooling liquid can form impurities such as scale and the like on the surface of the oil pipe, the impurities adhere to the surface of the oil pipe to influence the heat transfer efficiency of the cooling liquid, but the cleaning of the cooler generally needs to be stopped and cleaned to influence the work of an air compressor.
Disclosure of Invention
In view of the above-mentioned problems, it is necessary to provide an oil feeding device for a large-sized air compressor.
In order to solve the problems in the prior art, the invention adopts the following technical scheme:
The oil feeding device of the large-scale air compressor comprises an oil tank arranged on the air compressor, an oil pump, an oil filter and a cooler which are connected through pipelines, wherein the cooler comprises an outer cylinder body and a hot oil pipe arranged in the outer cylinder body, the hot oil pipe is parallel to the outer cylinder body, two ends of the hot oil pipe are fixedly provided with tube plates, the tube plates are arranged at two ends of the outer cylinder body, the outer cylinder body is positioned between the tube plates to form a cooling cavity, a cooling liquid inlet and a cooling liquid outlet which are communicated with the cooling cavity are arranged on the outer cylinder body, the cooling liquid inlet is connected with the output end of the cooling liquid conveying device, and the cooling liquid outlet is connected with the input end of the cooling liquid recovery device; the two ends of the outer cylinder body are coaxially provided with sealing covers, and the oil inlet end and the oil outlet end of the hot oil pipe extend to the outside of the sealing covers; a plurality of baffle plates are coaxially arranged in the cooling cavity, the baffle plates are in a circular shape and are distributed at equal intervals along the axis of the cooling cavity, through holes which are in the same straight line with the hot oil pipe are formed in the baffle plates, the hot oil pipe is inserted into the through holes, and the inner wall of the through holes is attached to the outer wall of the hot oil pipe; the external drive unit that the external drive threaded rod was rotated around self axis is provided with the screw sleeve in the external portion of urceolus body axis department rotation installation threaded rod, threaded rod pass the closing cap of urceolus body one end, and baffle axis department is provided with the screw sleeve, and the baffle passes through the screw sleeve screw mounting on the threaded rod, and threaded rod rotation drive baffle removes along the hot oil pipe, and the through-hole inner wall strikes off hot oil pipe outer wall impurity.
Preferably, the driving unit comprises a first bevel gear coaxially arranged at one end of the threaded rod, which is positioned outside the outer cylinder, and a second bevel gear meshed with the first bevel gear, the second bevel gear is coaxially arranged on a vertical rotating shaft, the rotating shaft is rotatably arranged on a mounting seat, and the mounting seat is fixedly arranged on a fixed seat arranged outside the outer cylinder; the bottom of the rotating shaft is coaxially provided with a driving gear, a rack which is horizontally arranged is slidably arranged on the fixed seat, and the rack is meshed with the driving gear.
Preferably, the driving unit further comprises an annular sleeve, the annular sleeve is sleeved at the oil inlet end of the hot oil pipe positioned outside the sealing cover, a cavity is formed in the annular sleeve, helium is filled in the cavity in the annular sleeve, and one side, attached to the hot oil pipe, of the annular sleeve is made of a heat conducting material; the annular sleeve is provided with an air cylinder communicated with the inner cavity of the annular sleeve, one end of the air cylinder, far away from the fixed seat, horizontally extends along the length direction of the rack, a piston column is inserted into the air cylinder, one end of the piston column, located outside the air cylinder, is connected with a connecting plate, and the connecting plate is fixedly connected with the rack.
Preferably, the outer wall laminating annular sleeve inner wall of gas cylinder, the one end outside that the annular sleeve was kept away from to the gas cylinder is provided with the pressure release section of thick bamboo, and the one end that the annular sleeve was kept away from to the gas cylinder is provided with the air vent of intercommunication gas cylinder and pressure release section of thick bamboo, and when the piston post was located the inside one end of gas cylinder and moved to air vent department, helium in the gas cylinder got into in the pressure release section of thick bamboo.
Preferably, one end of the rack, which is far away from the piston column, is provided with a guide inserted bar, the guide inserted bar horizontally extends along the length direction of the rack, the guide inserted bar is inserted into a guide seat arranged at one end of the fixing seat, a reset spring is sleeved on the guide inserted bar and is elastically connected with the guide seat and the rack, and the elastic force of the reset spring enables the rack to move towards one side, which is close to the inflator.
Preferably, a piston block is slidably mounted in the pressure release cylinder, the outer wall of the piston block is attached to the inner wall of the pressure release cylinder, the piston block is connected with the connecting plate through a connecting rod, and the sum of the lengths of the connecting rod and the piston block is identical to the length of the piston column; the one end of the pressure release cylinder facing the annular sleeve is provided with a first air supply pipe communicated with the annular sleeve, a first one-way air valve is arranged at the joint of the pressure release cylinder and the first air supply pipe, and helium in the pressure release cylinder enters the first air supply pipe to flow in one direction into the annular sleeve.
Preferably, the driving unit further comprises a helium storage tank, a second air supply pipe communicated with one end of the pressure release cylinder close to the annular sleeve is arranged on the helium storage tank, a second one-way air valve is arranged at the joint of the second air supply pipe and the pressure release cylinder, and the second one-way air valve enables helium in the helium storage tank to enter the second air supply pipe and flow in one direction into the pressure release cylinder.
Preferably, the thread part of the threaded rod is arranged in the middle of the threaded rod, the two ends of the threaded rod are smooth parts, and one end of the threaded rod positioned in the cooling cavity is rotatably arranged on the tube plate; one end of the threaded rod extending to the outside of the outer cylinder body penetrates through the tube plate and the sealing cover, a first dynamic sealing piece is arranged at the connection position of the tube plate and the threaded rod, and a second dynamic sealing piece is arranged at the connection position of the sealing cover and the threaded rod.
Compared with the prior art, the invention has the beneficial effects that:
Firstly, the through hole of the baffle plate is attached to the outer wall of the hot oil pipe, the baffle plate is spirally arranged on the threaded rod rotatably arranged in the outer cylinder body through the threaded sleeve, the drive unit drives the threaded rod to perform forward and reverse reciprocating rotation, so that the baffle plate can be driven to reciprocate in the axial direction of the hot oil pipe, impurities affecting the heat transfer efficiency of cooling liquid are cleaned, and the process can be performed in a working state of the air compressor, so that the working efficiency of the air compressor is ensured.
According to the invention, the inner wall of the annular sleeve of the driving unit is attached to the oil inlet end of the hot oil pipe, the temperature of lubricating oil in the hot oil pipe is utilized to heat helium in the annular sleeve, so that the helium is expanded, the expanded helium enters the air cylinder and pushes the piston column in the air cylinder to move outwards, the threaded rod is driven to rotate by taking the expanded helium as a power source, and the use of electric elements is reduced, so that the production cost is reduced, and the driving unit can be automatically started when the oil feeding device works without manual opening and closing.
Thirdly, the driving unit in the invention decompresses the air cylinder through the vent hole and the decompression cylinder, and cooperates with the elasticity of the reset spring to form the reciprocating movement of the rack, so that helium entering the decompression cylinder can reenter the annular sleeve, and therefore, the annular sleeve is kept to be always inflated by proper amount of helium, and the baffle plate is driven to continuously move.
Drawings
Fig. 1 is a perspective view of an oil feeding device of a large-sized air compressor in an operating state;
Fig. 2 is a perspective view of a cooler and a driving unit of an oil feeding device of a large-sized air compressor;
Fig. 3 is a side view of a cooler and drive unit of an oil feeding device of a large air compressor;
FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;
FIG. 5 is an enlarged view of a portion at B of FIG. 4;
FIG. 6 is a perspective cross-sectional view at A-A of FIG. 3;
FIG. 7 is an enlarged view of a portion at C of FIG. 6;
FIG. 8 is a cross-sectional view taken at D-D of FIG. 3;
FIG. 9 is an enlarged view of a portion at E of FIG. 8;
FIG. 10 is an enlarged view of a portion at F of FIG. 8;
fig. 11 is a second perspective view of a cooler and drive unit of an oil feeding device of a large-sized air compressor;
Fig. 12 is an exploded perspective view of a cooler and a driving unit of an oil feeding device of a large-sized air compressor.
The reference numerals in the figures are: 1. an oil tank; 11. an oil pump; 12. an oil filter; 2. a cooler; 21. an outer cylinder; 211. a tube sheet; 212. a cooling chamber; 213. a cooling liquid inlet; 214. a cooling liquid outlet; 215. a first dynamic seal; 22. a hot oil pipe; 23. a cover; 231. a second dynamic seal; 24. a baffle plate; 241. a through hole; 242. a thread sleeve; 25. a threaded rod; 3. a driving unit; 31. a first bevel gear; 32. a second bevel gear; 321. a rotating shaft; 322. a mounting base; 323. a drive gear; 33. a fixing seat; 331. a guide seat; 34. a rack; 341. a guide insert rod; 342. a return spring; 35. an annular sleeve; 36. an air cylinder; 361. a pressure release cylinder; 362. a vent hole; 363. a first air supply pipe; 364. a first one-way air valve; 37. a piston column; 371. a connecting plate; 38. a piston block; 381. a connecting rod; 39. a helium storage tank; 391. a second air supply pipe; 392. a second one-way air valve.
Detailed Description
The invention will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.
Referring to fig. 1 to 12:
The oil feeding device of the large-scale air compressor comprises an oil tank 1 arranged on the air compressor, an oil pump 11, an oil filter 12 and a cooler 2 which are connected through pipelines, wherein the cooler 2 comprises an outer cylinder 21 and a hot oil pipe 22 arranged in the outer cylinder 21, the hot oil pipe 22 is parallel to the outer cylinder 21, tube plates 211 are fixedly arranged at two ends of the hot oil pipe 22, the tube plates 211 are arranged at two ends of the outer cylinder 21, a cooling cavity 212 is formed between the tube plates 211 of the outer cylinder 21, a cooling liquid inlet 213 and a cooling liquid outlet 214 which are communicated with the cooling cavity 212 are arranged on the outer cylinder 21, the cooling liquid inlet 213 is connected with the output end of the cooling liquid conveying device, and the cooling liquid outlet 214 is connected with the input end of the cooling liquid recycling device; the two ends of the outer cylinder 21 are coaxially provided with sealing covers 23, and the oil inlet end and the oil outlet end of the hot oil pipe 22 extend to the outside of the sealing covers 23; a plurality of baffle plates 24 are coaxially arranged in the cooling cavity 212, the baffle plates 24 are in a circular-notch shape, the baffle plates 24 are distributed at equal intervals along the axis of the cooling cavity 212, through holes 241 which are in the same straight line with the hot oil pipe 22 are formed in the baffle plates 24, the hot oil pipe 22 is inserted into the through holes 241, and the inner wall of the through holes 241 is attached to the outer wall of the hot oil pipe 22; the axis of the outer cylinder 21 is rotatably provided with a threaded rod 25, the threaded rod 25 extends to the outside of the outer cylinder 21 through a sealing cover 23 at one end of the outer cylinder 21, a driving unit 3 for driving the threaded rod 25 to rotate around the axis of the outer cylinder 21 is arranged outside the outer cylinder 21, the axis of the baffle plate 24 is provided with a thread sleeve 242, the baffle plate 24 is spirally arranged on the threaded rod 25 through the thread sleeve 242, the threaded rod 25 rotates to drive the baffle plate 24 to move along the hot oil pipe 22, and impurities on the outer wall of the hot oil pipe 22 are scraped on the inner wall of the through hole 241.
The oil feeding device in this embodiment conveys the lubricating oil in the oil tank 1 to each component of the air compressor through the oil pump 11, the oil filter 12 is connected with the lubricating oil flowing into the cooler 2 and filters the impurity chips contained in the lubricating oil, the lubricating oil after being cooled by the cooler 2 is returned into the oil tank 1 again for recycling, the cooler 2 in this embodiment comprises an outer cylinder 21 and covers 23 at two ends, a hot oil pipe 22 is arranged in the outer cylinder 21, the hot oil pipe 22 passes through a cooling cavity 212 in the outer cylinder 21, cooling liquid enters the cooling cavity 212 from a cooling liquid inlet 213 and flows between return passages formed by the baffle plates 24, heat exchange is carried out fully with the lubricating oil with temperature in the hot oil pipe 22, the temperature of the hot oil pipe 22 is reduced, after the cooler is used for a long time in this embodiment, impurities such as the scale formed by the cooling liquid are positioned on the outer wall of the hot oil pipe 22, in this embodiment, the baffle 24 is sleeved outside the hot oil pipe 22 through the through hole 241, the inner wall of the through hole 241 is attached to the outer wall of the hot oil pipe 22, the baffle 24 is spirally installed on the threaded rod 25 rotatably installed in the outer cylinder 21 through the threaded sleeve 242, when the driving unit 3 drives the threaded rod 25 to rotate, the baffle 24 should follow rotation, but the limit of the hot oil pipe 22 on the baffle 24 causes the baffle 24 to only move horizontally along the axial direction of the cooling cavity 212, when the baffle 24 moves, the inner wall of the through hole 241 is attached to the outer wall of the hot oil pipe 22 to move, impurities attached to the outer wall of the hot oil pipe 22 are scraped off, the impurities enter the cooling liquid recycling system along with the cooling liquid to be filtered and separated, in this embodiment, the threaded rod 25 can be driven to reciprocate in the axial direction of the cooling cavity 212 by forward and backward reciprocating rotation, the baffle 24 is more, the smaller the interval between the baffle plates 24 is, the smaller the travel of the baffle plates 24 can be, the number of the baffle plates 24 can be set according to actual use requirements, and the cleaning of impurities affecting the heat transfer efficiency of the cooling liquid can be performed in the working state of the air compressor, so that the working efficiency of the air compressor is ensured.
In order to solve the problem of how the drive unit 3 drives the threaded rod 25 to rotate about its own axis, the following features are provided in particular:
The driving unit 3 comprises a first bevel gear 31 coaxially arranged at one end of the threaded rod 25 positioned outside the outer cylinder 21, and a second bevel gear 32 meshed with the first bevel gear 31, wherein the second bevel gear 32 is coaxially arranged on a vertical rotating shaft 321, the rotating shaft 321 is rotatably arranged on a mounting seat 322, and the mounting seat 322 is fixedly arranged on a fixed seat 33 arranged outside the outer cylinder 21; the bottom of the rotating shaft 321 is coaxially provided with a driving gear 323, a horizontally arranged rack 34 is slidably arranged on the fixed seat 33, and the rack 34 is meshed with the driving gear 323.
The driving unit 3 in this embodiment is coaxially connected with the threaded rod 25 through the first bevel gear 31, the second bevel gear 32 is meshed with the first bevel gear 31, the rotating shaft 321 of the second bevel gear 32 is rotatably installed at the guide seat 331 of the fixing seat 33 to keep the meshing state of the first bevel gear 31 and the second bevel gear 32 stable, and the driving gear 323 at the bottom of the rotating shaft 321 is meshed with the rack 34, so that when the rack 34 reciprocates in the horizontal direction, the threaded rod 25 can be driven to reciprocate in the forward and backward directions, the reciprocating movement of the baffle plate 24 along the outer wall of the hot oil pipe 22 is realized, and impurities attached to the outer wall of the hot oil pipe 22 are scraped.
In order to solve the problem of how the rack 34 automatically reciprocates, the following features are specifically provided:
The driving unit 3 further comprises an annular sleeve 35, the annular sleeve 35 is sleeved at the oil inlet end of the hot oil pipe 22 positioned outside the sealing cover 23, a cavity is formed in the annular sleeve 35, helium is filled in the cavity in the annular sleeve 35, and one side, attached to the hot oil pipe 22, of the annular sleeve 35 is made of a heat conducting material; the annular sleeve 35 is provided with an air cylinder 36 communicated with the inner cavity of the annular sleeve 35, one end of the air cylinder 36 away from the fixed seat 33 horizontally extends along the length direction of the rack 34, a piston column 37 is inserted into the air cylinder 36, one end of the piston column 37 positioned outside the air cylinder 36 is connected with a connecting plate 371, and the connecting plate 371 is fixedly connected with the rack 34.
In this embodiment, the driving unit 3 includes an annular sleeve 35 sleeved at the oil inlet end of the hot oil pipe 22, helium filled in the annular sleeve 35 has a thermal expansion property, the inner wall of the annular sleeve 35 is attached to the hot oil pipe 22, and the helium in the annular sleeve 35 is heated by using the temperature of lubricating oil in the hot oil pipe 22, so that the helium expands, but the volume in the annular sleeve 35 is unchanged, so that the expanded helium enters an air cylinder 36 and pushes a piston column 37 in the air cylinder 36 to move outwards, thereby driving a rack 34 connected with a connecting plate 371 at the top end of the piston column 37 to move, further enabling a baffle 24 to move and scrape materials.
The annular sleeve 35 is always combined with the hot oil pipe 22, so that helium in the annular sleeve 35 is always expanded, and in order to avoid the excessive pressure in the annular sleeve 35, the following characteristics are specifically set:
The outer wall of the air cylinder 36 is attached to the inner wall of the annular sleeve 35, a pressure release cylinder 361 is arranged outside one end, away from the annular sleeve 35, of the air cylinder 36, a vent hole 362 for communicating the air cylinder 36 with the pressure release cylinder 361 is arranged at one end, away from the annular sleeve 35, of the air cylinder 36, and when one end, located inside the air cylinder 36, of the piston column 37 moves to the vent hole 362, helium in the air cylinder 36 enters the pressure release cylinder 361.
In this embodiment, the pressure release cylinder 361 is disposed on one side of the air outlet end of the air cylinder 36, the vent hole 362 between the air cylinder 36 and the pressure release cylinder 361 is blocked by the piston column 37, when the helium in the annular sleeve 35 expands due to heat, the piston column 37 moves in the air cylinder 36, and when the piston column 37 moves to the vent hole 362, the air cylinder 36 is communicated with the pressure release cylinder 361, so that the high-pressure helium in the air cylinder 36 enters the pressure release cylinder 361, the air pressure in the air cylinder 36 is reduced, and the movement of the piston column 37 is stopped.
In order to drive the rack 34 to move reversely after stopping the movement of the piston post 37 and thus to move the baffle 24 reversely, the following features are specifically provided:
the end of the rack 34 far away from the piston column 37 is provided with a guide inserted rod 341, the guide inserted rod 341 horizontally extends along the length direction of the rack 34, the guide inserted rod 341 is inserted into a guide seat 331 arranged at one end of the fixed seat 33, a return spring 342 is sleeved on the guide inserted rod 341, the return spring 342 is elastically connected with the guide seat 331 and the rack 34, and the elastic force of the return spring 342 enables the rack 34 to move towards one side close to the air cylinder 36.
In this embodiment, one end of the rack 34 is inserted into the guide seat 331 provided on the fixing seat 33 through the guide inserting rod 341, so as to ensure the moving direction of the rack 34, when the helium gas in the annular sleeve 35 expands to push the piston column 37 and the rack 34 to move, the rack 34 compresses the return spring 342 on the guide inserting rod 341, when the helium gas in the air cylinder 36 enters the pressure release cylinder 361, the thrust of the piston column 37 disappears, at this moment, the elastic force of the return spring 342 pushes the rack 34 and the piston column 37 to move reversely, so that the threaded rod 25 rotates reversely to drive the baffle 24 to move reversely, in this embodiment, after the piston column 37 moves reversely, the piston column 37 plugs the vent hole 362 again, then the helium gas in the annular sleeve 35 is heated to expand continuously, and after the air pressure in the annular sleeve 35 increases, the piston column 37 is pushed to move again, so that circulation is formed, the baffle 24 can move continuously and reciprocally during the operation of the oil feeding device, and the surface of the baffle 24 is kept clean.
After the helium in the air cylinder 36 enters the pressure relief cylinder 361, the helium in the air cylinder 36 is reduced, and in order to ensure that the annular sleeve 35 always has proper amount of helium for thermal expansion by using the helium in the pressure relief cylinder 361, the following characteristics are specifically set:
A piston block 38 is slidably mounted in the pressure release cylinder 361, the outer wall of the piston block 38 is attached to the inner wall of the pressure release cylinder 361, the piston block 38 is connected with the connecting plate 371 through a connecting rod 381, and the sum of the lengths of the connecting rod 381 and the piston block 38 is the same as the length of the piston column 37; the pressure release cylinder 361 is provided with the first air supply pipe 363 that communicates the annular sleeve 35 towards one end of the annular sleeve 35, and the junction of pressure release cylinder 361 and first air supply pipe 363 is provided with first one-way air valve 364, and first one-way air valve 364 makes the helium in the pressure release cylinder 361 get into in the first air supply pipe 363 to the annular sleeve 35 one-way flow.
In this embodiment, the piston block 38 in the pressure release cylinder 361 forms a sealed cavity with a variable volume in the pressure release cylinder 361, because the piston block 38 is connected with the connecting plate 371 through the connecting rod 381, the sum of the lengths of the connecting rod 381 and the piston block 38 is the same as the length of the piston column 37, so that the piston block 38 and the piston column 37 are positioned at the same position at one end of the air cylinder 36, when one end of the piston column 37 moves to the air vent 362, the piston block 38 also moves to the air vent 362, helium in the air cylinder 36 enters the sealed cavity of the pressure release cylinder 361, when the elastic force of the return spring 342 drives the piston column 37 to move reversely, the piston block 38 moves reversely and applies pressure to the helium entering the pressure release cylinder 361, so that the helium enters the first air supply pipe 363 through the first one-way air valve 364 to flow unidirectionally into the annular sleeve 35, the helium returns to the annular sleeve 35, and the amount of helium in the annular sleeve 35 is maintained.
The piston block 38 presses helium in the pressure release cylinder 361 into the annular sleeve 35, so as to avoid that the air pressure in the pressure release cylinder 361 influences the subsequent piston column 37 to drive the piston block 38 to move in the pressure release cylinder 361, the following characteristics are specifically set:
The driving unit 3 further comprises a helium storage tank 39, a second air supply pipe 391 communicated with one end of the pressure release cylinder 361 close to the annular sleeve 35 is arranged on the helium storage tank 39, a second one-way air valve 392 is arranged at the joint of the second air supply pipe 391 and the pressure release cylinder 361, and the second one-way air valve 392 enables helium in the helium storage tank 39 to enter the second air supply pipe 391 to flow in a one-way mode into the pressure release cylinder 361.
The pressure release cylinder 361 in this embodiment is connected to the helium storage cylinder 39 through the second air supply pipe 391, when the piston block 38 moves in the pressure release cylinder 361 to increase the volume of the pressure release cylinder 361, the helium in the helium storage cylinder 39 flows unidirectionally into the pressure release cylinder 361 through the second air supply pipe 391, so that smooth movement of the piston block 38 in the pressure release cylinder 361 is ensured, the temperature of the helium entering the pressure release cylinder 361 is low, and after the piston block 38 is pressed into the annular sleeve 35, the piston block 38 can expand to push the piston column 37 to move in the air cylinder 36.
In order to solve the problem of how to ensure that the leakage of the cooling liquid does not occur when the threaded rod 25 rotates, the following features are specifically provided:
The thread part of the threaded rod 25 is arranged in the middle of the threaded rod 25, the two ends of the threaded rod 25 are smooth parts, and one end of the threaded rod 25 positioned in the cooling cavity 212 is rotatably arranged on the tube plate 211; one end of the threaded rod 25 extending to the outside of the outer cylinder 21 passes through the tube plate 211 and the sealing cover 23, a first dynamic seal member 215 is arranged at the connection position of the tube plate 211 and the threaded rod 25, and a second dynamic seal member 231 is arranged at the connection position of the sealing cover 23 and the threaded rod 25.
In this embodiment, the threaded portion in the middle of the threaded rod 25 is in screwed connection with the threaded sleeve 242 of the baffle 24, the smooth portions at two ends of the threaded rod 25 are rotationally connected with the cooler 2, the first dynamic seal member 215 is disposed at the connection position of the tube plate 211 and the threaded rod 25, the second dynamic seal member 231 is disposed at the connection position of the sealing cover 23 and the threaded rod 25, the first dynamic seal member 215 and the second dynamic seal member 231 dynamically seal the contact position of the threaded rod 25 and the cooler 2, so as to prevent leakage of cooling liquid in the cooling cavity 212, and the first dynamic seal member 215 and the second dynamic seal member 231 are in the prior art, so that the dynamic seal function is achieved, and redundant description is omitted.
Working principle: the oil feeding device conveys lubricating oil in the oil tank 1 to each component of the air compressor through the oil pump 11, the oil filter 12 is connected with the lubricating oil flowing to the cooler 2 and filters impurity chips contained in the lubricating oil, the lubricating oil cooled by the cooler 2 flows back to the oil tank 1 again for recycling, cooling liquid enters the cooling cavity 212 from the cooling liquid inlet 213 of the cooler 2 and flows between the reverse passages formed by the baffle plates 24 and fully exchanges heat with the lubricating oil with temperature in the hot oil pipe 22, after long-term use, impurities such as scale formed by the cooling liquid are positioned on the outer wall of the hot oil pipe 22, the annular sleeve 35 of the driving unit 3 drives the threaded rod 25 to reciprocate positively and reversely, the baffle plates 24 move on the threaded rod 25, the inner wall of the through hole 241 is attached to the outer wall of the hot oil pipe 22 and scrapes off the impurities attached to the outer wall of the hot oil pipe 22, and the impurities enter the cooling liquid recycling system along with the cooling liquid for filtering separation.
The foregoing examples merely illustrate one or more embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
1. The oil feeding device of the large-scale air compressor comprises an oil tank (1) arranged on the air compressor, and an oil pump (11), an oil filter (12) and a cooler (2) which are connected through pipelines, and is characterized in that the cooler (2) comprises an outer cylinder body (21) and a hot oil pipe (22) arranged in the outer cylinder body (21), the hot oil pipe (22) is parallel to the outer cylinder body (21), tube plates (211) are fixedly arranged at two ends of the hot oil pipe (22), the tube plates (211) are arranged at two ends of the outer cylinder body (21), the outer cylinder body (21) is positioned between the tube plates (211) to form a cooling cavity (212), a cooling liquid inlet (213) and a cooling liquid outlet (214) which are communicated with the cooling cavity (212) are arranged on the outer cylinder body (21), the cooling liquid inlet (213) is connected with the output end of the cooling liquid conveying device, and the cooling liquid outlet (214) is connected with the input end of the cooling liquid recycling device;
the two ends of the outer cylinder body (21) are coaxially provided with sealing covers (23), and the oil inlet end and the oil outlet end of the hot oil pipe (22) extend to the outside of the sealing covers (23);
A plurality of baffle plates (24) are coaxially arranged in the cooling cavity (212), the baffle plates (24) are in a circular-notch shape, the baffle plates (24) are distributed at equal intervals along the axis of the cooling cavity (212), through holes (241) which are in the same straight line with the hot oil pipe (22) are arranged on the baffle plates (24), the hot oil pipe (22) is inserted into the through holes (241), and the inner wall of the through holes (241) is attached to the outer wall of the hot oil pipe (22);
The external cylinder body (21) axis department rotates and installs threaded rod (25), threaded rod (25) pass closing cap (23) of external cylinder body (21) one end and extend to the outside of external cylinder body (21), external cylinder body (21) outside is provided with drive threaded rod (25) around self axis rotatory drive unit (3), baffle (24) axis department is provided with thread bush (242), baffle (24) screw mounting is on threaded rod (25) through thread bush (242), threaded rod (25) rotation drive baffle (24) remove along hot oil pipe (22), through-hole (241) inner wall scrapes hot oil pipe (22) outer wall impurity.
2. An oil feeding device of a large-sized air compressor according to claim 1, wherein the driving unit (3) comprises a first bevel gear (31) coaxially installed at one end of a threaded rod (25) located outside the outer cylinder (21), and a second bevel gear (32) engaged with the first bevel gear (31), the second bevel gear (32) is coaxially installed on a vertical rotating shaft (321), the rotating shaft (321) is rotatably installed on a mounting seat (322), and the mounting seat (322) is fixedly installed on a fixing seat (33) arranged outside the outer cylinder (21);
The bottom of the rotating shaft (321) is coaxially provided with a driving gear (323), the fixed seat (33) is provided with a rack (34) which is horizontally arranged in a sliding manner, and the rack (34) is meshed with the driving gear (323).
3. The oil feeding device of a large-sized air compressor according to claim 2, wherein the driving unit (3) further comprises an annular sleeve (35), the annular sleeve (35) is sleeved at the oil inlet end of the hot oil pipe (22) positioned outside the sealing cover (23), a cavity is formed in the annular sleeve (35), helium is filled in the cavity in the annular sleeve (35), and one side, which is attached to the hot oil pipe (22), of the annular sleeve (35) is made of a heat conducting material;
The annular sleeve (35) is provided with an air cylinder (36) communicated with the inner cavity of the annular sleeve (35), one end, away from the fixed seat (33), of the air cylinder (36) horizontally extends along the length direction of the rack (34), a piston column (37) is inserted into the air cylinder (36), one end, located outside the air cylinder (36), of the piston column (37) is connected with a connecting plate (371), and the connecting plate (371) is fixedly connected with the rack (34).
4. An oil feeding device for a large-sized air compressor according to claim 3, wherein the outer wall of the air cylinder (36) is attached to the inner wall of the annular sleeve (35), a pressure release cylinder (361) is arranged outside one end of the air cylinder (36) away from the annular sleeve (35), a vent hole (362) for communicating the air cylinder (36) with the pressure release cylinder (361) is arranged at one end of the air cylinder (36) away from the annular sleeve (35), and helium in the air cylinder (36) enters the pressure release cylinder (361) when one end of the piston column (37) located inside the air cylinder (36) moves to the vent hole (362).
5. The oil feeding device of a large-sized air compressor according to claim 4, wherein a guiding inserting rod (341) is arranged at one end of the rack (34) far away from the piston column (37), the guiding inserting rod (341) horizontally extends along the length direction of the rack (34), the guiding inserting rod (341) is inserted into a guiding seat (331) arranged at one end of the fixing seat (33), a return spring (342) is sleeved on the guiding inserting rod (341), the return spring (342) is elastically connected with the guiding seat (331) and the rack (34), and the elastic force of the return spring (342) enables the rack (34) to move towards one side close to the air cylinder (36).
6. The oil feeding device of a large-sized air compressor according to claim 5, wherein a piston block (38) is slidably mounted in the pressure release cylinder (361), the outer wall of the piston block (38) is attached to the inner wall of the pressure release cylinder (361), the piston block (38) is connected with the connecting plate (371) through a connecting rod (381), and the sum of the lengths of the connecting rod (381) and the piston block (38) is the same as the length of the piston column (37);
One end of the pressure release cylinder (361) facing the annular sleeve (35) is provided with a first air supply pipe (363) communicated with the annular sleeve (35), a first one-way air valve (364) is arranged at the joint of the pressure release cylinder (361) and the first air supply pipe (363), and the first one-way air valve (364) enables helium in the pressure release cylinder (361) to enter the first air supply pipe (363) and flow into the annular sleeve (35) in a one-way mode.
7. The oil feeding device of a large-sized air compressor according to claim 6, wherein the driving unit (3) further comprises a helium gas storage tank (39), a second air supply pipe (391) communicated with one end of the pressure release cylinder (361) close to the annular sleeve (35) is arranged on the helium gas storage tank (39), a second one-way air valve (392) is arranged at the joint of the second air supply pipe (391) and the pressure release cylinder (361), and the second one-way air valve (392) enables helium gas in the helium gas storage tank (39) to enter the second air supply pipe (391) to flow in one way into the pressure release cylinder (361).
8. The oil feeding device of a large air compressor according to claim 1, wherein the threaded part of the threaded rod (25) is arranged in the middle of the threaded rod (25), two ends of the threaded rod (25) are smooth parts, and one end of the threaded rod (25) positioned in the cooling cavity (212) is rotatably arranged on the tube plate (211);
one end of the threaded rod (25) extending to the outside of the outer cylinder body (21) penetrates through the tube plate (211) and the sealing cover (23), a first dynamic sealing piece (215) is arranged at the connection position of the tube plate (211) and the threaded rod (25), and a second dynamic sealing piece (231) is arranged at the connection position of the sealing cover (23) and the threaded rod (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410885987.3A CN118423255A (en) | 2024-07-03 | 2024-07-03 | Oil feeding device of large-scale air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410885987.3A CN118423255A (en) | 2024-07-03 | 2024-07-03 | Oil feeding device of large-scale air compressor |
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| Publication Number | Publication Date |
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| CN118423255A true CN118423255A (en) | 2024-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410885987.3A Pending CN118423255A (en) | 2024-07-03 | 2024-07-03 | Oil feeding device of large-scale air compressor |
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| CN107923721A (en) * | 2015-08-11 | 2018-04-17 | 林德股份公司 | Heat exchanger |
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| WO2022267250A1 (en) * | 2021-06-25 | 2022-12-29 | 浙江福霸机电有限公司 | Low-noise small centrifugal fan having self-cleaning structure |
| CN218787747U (en) * | 2022-10-25 | 2023-04-04 | 宁夏鹏旭环保科技有限公司 | Cooling circulation system is used in 4, 6-dichloropyrimidine production |
| CN218821799U (en) * | 2022-09-21 | 2023-04-07 | 北京中石科沃能源设备有限公司 | Prevent effectual heat exchanger of scale deposit |
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2024
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107923721A (en) * | 2015-08-11 | 2018-04-17 | 林德股份公司 | Heat exchanger |
| WO2022267250A1 (en) * | 2021-06-25 | 2022-12-29 | 浙江福霸机电有限公司 | Low-noise small centrifugal fan having self-cleaning structure |
| CN113776366A (en) * | 2021-09-24 | 2021-12-10 | 宁波安信化工装备有限公司 | Heat exchanger convenient to clean |
| CN114465951A (en) * | 2022-02-14 | 2022-05-10 | 深圳市力胜源电子科技有限公司 | Single slot position processing router with signal enhancement function |
| CN218821799U (en) * | 2022-09-21 | 2023-04-07 | 北京中石科沃能源设备有限公司 | Prevent effectual heat exchanger of scale deposit |
| CN218787747U (en) * | 2022-10-25 | 2023-04-04 | 宁夏鹏旭环保科技有限公司 | Cooling circulation system is used in 4, 6-dichloropyrimidine production |
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