CN112944215A - Centralized gas supply system - Google Patents
Centralized gas supply system Download PDFInfo
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- CN112944215A CN112944215A CN202110091253.4A CN202110091253A CN112944215A CN 112944215 A CN112944215 A CN 112944215A CN 202110091253 A CN202110091253 A CN 202110091253A CN 112944215 A CN112944215 A CN 112944215A
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- gas supply
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- 238000000605 extraction Methods 0.000 claims abstract description 8
- 238000000926 separation method Methods 0.000 claims description 21
- 230000005484 gravity Effects 0.000 claims description 16
- 230000007246 mechanism Effects 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 11
- 230000000903 blocking effect Effects 0.000 claims description 9
- 230000009466 transformation Effects 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 239000011810 insulating material Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 4
- 230000008439 repair process Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 96
- 239000004519 grease Substances 0.000 description 33
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 230000005686 electrostatic field Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000000740 bleeding effect Effects 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000003749 cleanliness Effects 0.000 description 3
- 238000002309 gasification Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
- F17D1/04—Pipe-line systems for gases or vapours for distribution of gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
- F17D1/065—Arrangements for producing propulsion of gases or vapours
- F17D1/07—Arrangements for producing propulsion of gases or vapours by compression
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/14—Arrangements for supervising or controlling working operations for eliminating water
- F17D3/145—Arrangements for supervising or controlling working operations for eliminating water in gas pipelines
Abstract
The application relates to a centralized gas supply system, which comprises an air compressor, a gas supply pipe, a vacuum pump, an exhaust pipe, a cylinder and an electromagnetic valve; the air outlet end of the air compressor is connected with a first air tank through a pipeline; the gas supply pipe is communicated with the first gas tank; the side of the gas supply pipe is fixedly provided with a gas supply branch pipe communicated with the pipe cavity of the gas supply pipe; the pipeline at the air exhaust end of the vacuum pump is connected with a second air tank; the extraction pipe is communicated with the second gas tank; an air exhaust branch pipe communicated with the cavity of the air exhaust pipe is fixed on the periphery of the air exhaust pipe; the cylinder pipeline is connected with the electromagnetic valve; the electromagnetic valve is provided with an air inlet and an air outlet; one end of the air supply branch pipe, which is far away from the air supply pipe, is connected to the air inlet; one end of the air exhaust branch pipe, which is far away from the air exhaust pipe, is connected to the air exhaust port. The application has the effect of reducing the maintenance and repair cost.
Description
Technical Field
The application relates to the field of gas supply technology, in particular to a centralized gas supply system.
Background
In a production workshop, a plurality of machines need to use the air cylinder, and the air cylinder is connected with the solenoid valve for controlling reversing so as to realize the telescopic action of the piston rod of the air cylinder. The air cylinder supplies air through the air compressor, and every machine uses an air compressor machine to supply air, needs to maintain many air compressors like this, and the cost of maintenance and maintenance is higher.
Disclosure of Invention
In order to reduce maintenance and repair costs, the present application provides a centralized gas supply system.
The application provides a centralized gas supply system adopts following technical scheme:
a centralized gas supply system comprises an air compressor, a gas supply pipe, a vacuum pump, an exhaust pipe, a cylinder and an electromagnetic valve; the air outlet end of the air compressor is connected with a first air tank through a pipeline; the gas supply pipe is communicated with the first gas tank; the side of the gas supply pipe is fixedly provided with a gas supply branch pipe communicated with the pipe cavity of the gas supply pipe; the pipeline at the air exhaust end of the vacuum pump is connected with a second air tank; the extraction pipe is communicated with the second gas tank; an air exhaust branch pipe communicated with the cavity of the air exhaust pipe is fixed on the periphery of the air exhaust pipe; the cylinder pipeline is connected with the electromagnetic valve; the electromagnetic valve is provided with an air inlet and an air outlet; one end of the air supply branch pipe, which is far away from the air supply pipe, is connected to the air inlet; one end of the air exhaust branch pipe, which is far away from the air exhaust pipe, is connected to the air exhaust port.
Through adopting above-mentioned technical scheme, start air compressor machine and vacuum pump, the air compressor machine supplyes compressed air to first gas pitcher, and the vacuum pump is taken out the air in the second gas pitcher and is separated so that the jar intracavity of second gas pitcher forms the negative pressure. When a machine in a production workshop works, the electromagnetic valve is started, the air supply branch pipe inputs compressed air in the air supply pipe to an air inlet of the electromagnetic valve, and the compressed air flows to the air cylinder through the electromagnetic valve to push a piston rod of the air cylinder to extend out. Because the exhaust tube communicates with the second gas pitcher that forms the negative pressure, exhaust tube and branch pipe intercommunication of bleeding, the branch pipe of bleeding is connected with the gas vent of solenoid valve, so at the in-process that the piston rod stretches out, the low-pressure gas that is located the gas vent takes away through the negative pressure, reduce the thrust that compressed gas promoted the piston rod, the reduction of thrust will reduce compressed air's quantity, thereby reduce the cylinder to the quantity of compressed air in the first gas pitcher, and then reduce the air compressor machine and last the moving time, reduce maintenance and maintenance cost.
Optionally, the gas supply pipe is a closed loop pipe.
Through adopting above-mentioned technical scheme, closed loop pipeline's application when making the needs supply a large amount of gas, for example during the more cylinder of connection of air supply pipe week side, can make the atmospheric pressure of air supply pipe lumen everywhere the department the same, the atmospheric pressure in the balanced air supply pipe to the atmospheric pressure when satisfying a plurality of cylinders and using.
Optionally, an oil-gas separation device for oil-gas separation is arranged on the side wall of the extraction pipe.
Through adopting above-mentioned technical scheme, oil-gas separation device's setting reduces the gas that the gas vent was taken away from by the negative pressure in the content of grease to reduce the risk that the grease is attached to the exhaust tube inner wall, reduce the risk that exhaust tube inner wall grease is piled up, and then improve vacuum pump's life.
Optionally, the oil-gas separation device is arranged at the joint of the exhaust pipe and the exhaust branch pipe.
Through adopting above-mentioned technical scheme, oil-gas separation device sets up in the aim at exhaust tube and the branch connection department of bleeding: shorten the tube side that contains the gas of grease and get into in the exhaust tube, the oil-gas separation device that is located this position department simultaneously is convenient for the installation of earlier stage, need not to set for in advance the relative position of oil-gas separation device and exhaust tube.
Optionally, the oil-gas separation device comprises a box body, a positive plate fixed on the inner side wall of the box body, a negative plate fixed on the inner side wall of the box body and a voltage transformation module fixed on the outer side wall of the box body; the two ends of the box body, which are deviated from each other, are respectively provided with an inlet and an outlet which are communicated with the inner cavity of the box body; the inlet and the outlet are respectively connected with the air exhaust branch pipe and the air exhaust pipe through pipelines; a filter screen is arranged on the inner wall of the box body at the outlet; the positive plate and the negative plate are respectively positioned on the opposite inner side walls of the box body; a gap is reserved between the positive plate and the negative plate, and the positive plate and the negative plate are electrically connected to the voltage transformation module; the voltage transformation module is controlled to be opened and closed through the electromagnetic valve.
Through adopting above-mentioned technical scheme, when the solenoid valve starts, the vary voltage module starts in order to produce high-voltage electrostatic field to positive plate and negative plate circular telegram, take in the gas admission box of grease, through the clearance between positive plate and the negative plate, the gas that has the grease is by the ionization under the electrostatic field, decompose, and the carbonization, under the effect of electric field force, the atomizing oil drips or the gasification oil drips and adsorbs in the surface of positive plate, gas in the box flows out the export through the filter screen and gets into in the exhaust tube, thereby accomplish the gas separation who contains the grease, it is clean to make the gas that flows into in the exhaust tube, thereby reduce the risk that the grease is attached to in the exhaust tube, reduce the accumulational risk of exhaust tube inner wall.
Optionally, the oil-gas separation device further comprises an oil stain removing mechanism for cleaning one side of the positive plate facing the negative plate and a collecting box for collecting oil cleaned by the oil stain removing mechanism; the collecting box is detachably connected with the box body; the inner side wall of the box body at the outlet is movably connected with a plugging plate which is opened and closed at the outlet.
Through adopting above-mentioned technical scheme, the introduction of clear greasy dirt mechanism reduces the area that the surface of positive plate is covered by the greasy dirt, improves the problem that electric field strength weakens between positive plate and the negative plate. After the follow-up clearance time that reaches the regulation, remove earlier the jam plate with the export closure, the risk of the sudden change of air pressure in the box when the box is dismantled is collected in the introduction reduction of jam plate, will collect the box and take off from the box again, alright pour the grease in the collection box into the assigned position, empty the grease in the collection box.
Optionally, the oil stain removing mechanism comprises a scraper hinged to the inner wall of the box body and a gravity block fixed to one end, far away from the hinged position of the scraper, of the scraper; the side wall of the scraper is in mutual abutting connection with one side of the positive plate facing the negative plate; a first abutting block and a second abutting block for abutting the scraper are fixed on the inner wall of the box body; when the scraper blade butt joint in the second butt joint piece, the scraper blade is kept away from the one end of self articulated position and is faced the entry, the gravity piece is faced one side of entry is provided with the windward side.
Through adopting above-mentioned technical scheme, start at the solenoid valve, when the gas in the branch pipe of bleeding flows to the exhaust tube, gaseous face of attacking is simultaneously impacted from the entry entering, and the impact drive of face of attacking articulates the scraper blade upset in the box inside wall, and the scraper blade slows down the velocity of flow that flows into the box internal gas simultaneously to the velocity of flow that makes the box internal gas that contains the grease slows down, thereby improves the positive plate and drips or the adsorption capacity that the gasification drips to the atomizing, improves gaseous clean degree. When the scraper blade overturns and abuts against the first abutting block, grease attached to the surface of the positive plate is scraped by the scraper blade. When no gas flows into the box body through the air exhaust branch pipe, the gravity block is free to fall under the influence of gravity, the scraper scrapes the surface of the positive plate again, and therefore air inflow and air cutoff are carried out in the box body, the cleanliness of the surface of the positive plate is improved through twice scraping of the scraper, and accordingly the adsorption quantity of the positive plate to atomized oil drops or gasified oil drops is improved.
Optionally, the surface of the scraper is provided with an oil-dredging layer.
Through adopting above-mentioned technical scheme, the adhesion of scraper blade surface grease is reduced in the setting of oleophobic layer to improve the scraper blade and by the problem that the grease increases weight, and then improve the problem that the scraper blade is difficult to blow to the gas that gets into the box from the entry.
Optionally, the scraper is made of an insulating material.
Through adopting above-mentioned technical scheme, with the risk of electricity to the scraper blade when reducing the positive plate circular telegram to reduce the risk that the scraper blade circular telegram back was scalded and is damaged self structure, and then improve the life of scraper blade.
Optionally, through holes for the filter screen to pass through are formed in the side wall of the box body at positions corresponding to the filter screen; the inner side wall of the box body is provided with a slide bar for the sliding connection of the filter screen; the outer side wall of the box body is provided with a sealing cover for blocking the through hole; the cover is connected to the outer side wall of the box body through bolts.
By adopting the technical scheme, after the specified cleaning time is reached, the bolt between the sealing cover and the side wall of the box body is taken down, the sealing cover slides along the length direction of the sliding rod, and the filter screen can be taken out of the box body through the through hole to be replaced or cleaned. The arrangement of the through hole and the sealing cover improves the problem that the filter screen is inconvenient to replace after being used for a long time.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the air compressor supplements compressed air to the first air tank, the vacuum pump pumps air in the second air tank to form negative pressure in a tank cavity of the second air tank, the negative pressure pumps low-pressure waste gas extruded by a piston rod out while the piston rod of the air cylinder is pushed by the compressed air to stretch out, so that the thrust of the piston rod pushed by the compressed air is reduced, the use amount of the compressed air is reduced by the reduction of the thrust, the use amount of the compressed air in the first air tank by the air cylinder is reduced, the continuous operation time of the air compressor is further reduced, and the maintenance cost is reduced;
2. through oil-gas separation device, reduce the gas that the gas vent was taken away by the negative pressure in the content of grease to reduce the risk that grease is attached to the exhaust tube inner wall, reduce the accumulational risk of exhaust tube inner wall grease, and then improve vacuum pump's life.
Drawings
Fig. 1 is a schematic structural view of a central gas supply system according to an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a cylinder and a solenoid valve according to an embodiment of the present application.
FIG. 3 is a schematic view of the overall structure of the oil-gas separation device according to the embodiment of the present application.
Fig. 4 is a schematic view showing the positions of the positive and negative electrode plates according to the example of the present application.
Fig. 5 is a schematic structural diagram of a filter screen and a blocking plate according to an embodiment of the present application.
Description of reference numerals: 1. an air compressor; 2. a gas supply pipe; 21. a gas supply branch pipe; 3. a vacuum pump; 4. an air exhaust pipe; 41. an air exhaust branch pipe; 5. a cylinder; 6. an electromagnetic valve; 61. an air inlet; 62. an air outlet; 63. an exhaust port; 64. an extension tube; 65. a three-way joint; 7. a first gas tank; 8. a second gas tank; 9. an oil-gas separation device; 91. a box body; 911. an inlet; 912. an outlet; 913. a slide bar; 9131. a compression spring; 914. a through hole; 915. a butting rod; 92. a positive plate; 93. a negative plate; 94. a voltage transformation module; 941. a step-up transformer; 942. a time control switch; 95. an oil stain removing mechanism; 951. a squeegee; 952. a gravity block; 9521. the windward side; 953. a first abutment block; 954. a second abutment block; 96. a filter screen; 961. a fixing frame; 9611. perforating; 962. a filter disc; 97. a blocking plate; 971. a sliding hole; 98. a funnel; 99. a collection box; 10. and (7) sealing the cover.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
In a production workshop, a plurality of machines need to use the air cylinder 5, each machine uses one air compressor 1 to supply air, a plurality of air compressors 1 need to be maintained, and the maintenance cost is high.
The embodiment of the application discloses a centralized gas supply system. Referring to fig. 1 and 2, a centralized gas supply system comprises an air compressor 1, a gas supply pipe 2, a vacuum pump 3, an exhaust pipe 4, a cylinder 5 and an electromagnetic valve 6, wherein a gas outlet end pipeline of the air compressor 1 is connected with a first gas tank 7, the gas supply pipe 2 is communicated with the first gas tank 7, and the gas supply pipe 2 is a closed-loop pipeline. A plurality of air supply branch pipes 21 communicated with the pipe cavity of the air supply pipe 2 are fixed on the peripheral side of the air supply pipe 2, and the plurality of air supply branch pipes 21 correspond to a plurality of machines in a production workshop one by one. The air supply pipe 2 of the closed loop pipeline can enable the air pressure in the pipe cavity of the air supply pipe 2 to be the same everywhere, and balance the air pressure in the air supply pipe 2 so as to meet the air pressure when the plurality of air cylinders 5 are used.
Referring to fig. 1 and 2, the air exhaust end of the vacuum pump 3 is connected with a second air tank 8, and the air exhaust pipe 4 is communicated with the second air tank 8. A plurality of air exhaust branch pipes 41 communicated with the pipe cavities of the air exhaust pipe 4 are fixed on the peripheral side of the air exhaust pipe 4, and the plurality of air exhaust branch pipes 41 correspond to the plurality of air supply branch pipes 21 one by one. The cylinder 5 is connected to the solenoid valve 6 through a pipeline, the solenoid valve 6 is used for achieving the function of extending and retracting a piston rod of the cylinder 5, and the solenoid valve 6 is a two-position five-way valve in the embodiment. The two-position five-way valve has one air inlet 61, two air outlets 62 and two air outlets 63, wherein the two air outlets 62 are connected with two end pipelines of the cylinder 5. The end of the supply branch 21 remote from the supply pipe 2 is sealingly connected to the inlet 61. The two exhaust ports 63 are connected with extension pipes 64 through pipelines, and the free ends of the extension pipes 64 are connected with three-way joints 65 in a sealing mode. Two of the three joints of the three-way joint 65 are hermetically connected with the end of the extension pipe 64, and the remaining one is hermetically connected with the end of the air exhaust branch pipe 41 far away from the air exhaust pipe 4.
Referring to fig. 1 and 2, before the machine in the production workshop works, the air compressor 1 and the vacuum pump 3 are started, the air compressor 1 supplies compressed air to the first air tank 7, and the vacuum pump 3 pumps out air in the second air tank 8 to enable negative pressure to be formed in the tank cavity of the second air tank 8. When the machine works, the electromagnetic valve 6 is started, the air supply branch pipe 21 inputs the compressed air in the air supply pipe 2 into the air inlet 61 of the electromagnetic valve 6, and then the compressed air flows to the air cylinder 5 through the electromagnetic valve 6 to push the piston rod of the air cylinder 5 to extend. Because exhaust tube 4 and the second gas pitcher 8 intercommunication that forms the negative pressure, exhaust tube 4 and branch pipe 41 intercommunication bleed, branch pipe 41 bleeds is connected with the gas vent 63 of solenoid valve 6, so at the in-process that the piston rod stretches out, the low-pressure gas that is located gas vent 63 takes away through the negative pressure, reduce the thrust that compressed gas pushed the piston rod, the reduction of thrust will reduce compressed air's quantity, thereby reduce the quantity of compressed air in cylinder 5 to first gas pitcher 7, and then reduce the air compressor machine 1 and last the moving time, reduce maintenance and maintenance cost.
Referring to fig. 3 and 4, in the present embodiment, in order to reduce the risk of the extraction pipe 4 being blocked by oil dirt, an oil-gas separation device 9 is disposed at the connection between the extraction pipe 4 and the extraction branch pipe 41. Specifically, the oil-gas separation device 9 includes a box 91, a positive plate 92 fixed on the inner side wall of the box 91, a negative plate 93 fixed on the inner side wall of the box 91, and a voltage transformation module 94 fixed on the outer side wall of the box 91, wherein an inlet 911 and an outlet 912 communicated with the inner cavity of the box 91 are respectively provided on two sides of the box 91 facing away from each other. The inlet 911 and the outlet 912 are respectively piped to the suction manifold 41 and the suction tube 4. The side of the case 91 where the inlet 911 is opened is defined as the left side of the case 91, and the side of the case 91 where the outlet 912 is opened is defined as the right side of the case 91.
Referring to fig. 3 and 4, the positive and negative electrode plates 92 and 93 are respectively disposed on opposite inner sidewalls of the case 91, the sidewalls where the positive and negative electrode plates 92 and 93 are disposed are respectively defined as a rear side of the case 91 and a front side of the case 91, and the sidewall where the voltage transforming module 94 is disposed is defined as a top wall of the case 91. A gap is left between the positive plate 92 and the negative plate 93, and both the positive plate 92 and the negative plate 93 are electrically connected to the voltage transformation module 94. The voltage transformation module 94 includes a step-up transformer 941 and a time switch 942 electrically connected to the step-up transformer 941, wherein the time switch 942 is opened and closed by a solenoid valve 6, and the solenoid valve 6 refers to fig. 2. When the electromagnetic valve 6 is started, the time switch 942 triggers a set time, the step-up transformer 941 energizes the positive plate 92 and the negative plate 93 respectively to generate a high-voltage electrostatic field, the gas with grease enters the box 91, passes through the gap between the positive plate 92 and the negative plate 93, the gas with grease is ionized, decomposed and carbonized in the electrostatic field, and under the action of the electric field force, atomized oil drops or gasified oil drops are adsorbed on the surface of the positive plate 92 to complete the separation of the gas containing grease, so that the gas flowing into the exhaust pipe 4 is clean. After the set time of the time switch 942 is reached, the step-up transformer 941 is de-energized, and the time switch 942 triggers the set time again to energize the step-up transformer 941 when the electromagnetic valve 6 is started next time.
Referring to fig. 4, casing 91 is provided with a degreasing mechanism 95 on the same side wall of positive electrode plate 92 for removing grease on the side of positive electrode plate 92 facing negative electrode plate 93. Specifically, the oil stain removing mechanism 95 includes a scraper 951 hinged to the inner wall of the box 91 and a gravity block 952 adhesively fixed to one end of the scraper 951 far away from the hinged position of the scraper, wherein a gap is left between the peripheral side of the positive plate 92 and the inner side wall of the box 91. The hinged position of scraper 951 is located in the gap between the side wall of positive plate 92 and the right side wall of box 91. The side wall of scraper 951 and the side of positive electrode plate 92 facing negative electrode plate 93 are in contact with each other. The scraper 951 is made of an insulating material, and in this embodiment the scraper 951 is made of plastic. The surface of the scraper 951 is sprayed with an oil-repellent layer to reduce the adhesion of grease on the surface of the scraper 951 and improve the problem that the scraper 951 is weighted by grease. The density of the material of the gravity block 952 is greater than the density of the material of the scraper 951, and the material of the gravity block 952 may be wood.
Referring to fig. 4, a first contact piece 953 and a second contact piece 954, which are in contact with the scraper 951, are fixed to the inner wall of the rear side of the case 91, and specifically, the first contact piece 953 is located in a gap between the side wall of the positive electrode plate 92 and the right side wall of the case 91, and the second contact piece 954 is located in a gap between the side wall of the positive electrode plate 92 and the left side wall of the case 91. When the scraper 951 abuts against the second abutting block 954, one end, away from the self-hinged position, of the scraper 951 faces the inlet 911, namely, one end, away from the self-hinged position, of the scraper 951 is the position of the gravity block 952, a windward surface 9521 is arranged on one side, facing the inlet 911, of the gravity block 952, and the windward surface 9521 is an arc surface.
Referring to fig. 1 and 4, when the electromagnetic valve 6 is activated, and the gas in the pumping branch 41 flows to the pumping pipe 4, the gas enters from the inlet 911 and impacts the windward face 9521, the impact of the windward face 9521 drives the scraper 951 hinged to the inner side wall of the box 91 to turn over, and the scraper 951 slows down the flow rate of the gas flowing into the box 91, so that the flow rate of the gas containing grease in the box 91 is slowed down, and the adsorption amount of the positive plate 92 to atomized oil drops or gasified oil drops is increased. During the process that the scraper 951 is turned over and abuts against the first abutting block 953, the scraper 951 scrapes off grease attached to the surface of the positive plate 92. When no gas flows into the inner cavity of the box 91 through the exhaust branch pipe 41, the gravity block 952 falls freely under the influence of gravity, and the scraper 951 scrapes the surface of the positive plate 92 again, so that the surface of the positive plate 92 is scraped twice through the scraper 951 in the processes of air inlet and air cut-off in the box 91, and the cleanliness of the surface of the positive plate 92 is improved.
Referring to fig. 5, in this embodiment, in order to improve the cleanliness of the gas flowing into the pumping pipe 4, a filter 96 is provided at the position of the outlet 912. Specifically, the filter screen 96 includes a fixing frame 961 and a filter piece 962 fixedly connected to the fixing frame 961, and the fixing frame 961 has a square frame shape. One side of the fixing frame 961 facing the top wall of the box 91 is provided with two through holes 9611 penetrating through the side walls. Two sliding rods 913 are vertically fixed on the inner bottom wall of the box body 91, the two sliding rods 913 correspond to the two through holes 9611 one by one and penetrate through the corresponding through holes 9611, one end of the sliding rod 913, which is far away from the inner bottom wall of the box body 91, faces the top wall of the box body 91, and the two sliding rods 913 are located on two sides of the outlet 912 respectively. The filter 962 is made of a micron-sized glass fiber filter material. The top wall of the box body 91 is provided with a through hole 914 for the filter screen 96 to pass through at a position corresponding to the filter screen 96, and the top wall of the box body 91 is connected with a sealing cover 10 for blocking the through hole 914 through a bolt.
Referring to fig. 5, a compression spring 9131 is coaxially sleeved on the periphery of the slide rod 913. The sliding rod 913 is slidably connected with a blocking plate 97 which is opened and closed at the outlet 912, and the blocking plate 97 is cuboid. One side butt that jam plate 97 faces the box 91 diapire connects in compression spring 9131, and the one end butt that jam plate 97 is kept away from to compression spring 9131 is in the interior diapire of box 91. One side of the blocking plate 97 facing the bottom wall of the box body 91 is provided with two sliding holes 971 penetrating through the side wall, and the two sliding holes 971 correspond to the two sliding rods 913 one by one. The aperture of the sliding hole 971 is slightly larger than the rod diameter of the sliding rod 913, by this design, after the sealing cover 10 is removed, the compression spring 9131 restores the state before compression and pushes the plugging plate 97 to the direction of the top wall of the box 91, in the process, the fixing frame 961 pushes out the through hole 914, so as to take the filter screen 96 out of the through hole 914, meanwhile, because the negative pressure in the exhaust tube 4 exists, the aperture of the sliding hole 971 is slightly larger than the rod diameter of the sliding rod, when the outlet 912 is plugged by the plugging plate 913, the movement allowance is left between the plugging plate 97 and the sliding rod 913, so that the plugging plate 97 is more attached to the inner side wall on the right side of the box 91.
Referring to fig. 5, the wide side of the fixed frame 961 abuts against the long side of the plugging plate 97, and particularly, the length of the long side of the plugging plate 97 is longer than the length of the wide side of the fixed frame 961. The inside wall that box 91 is located the front side and the rear side all is fixed with two butt poles 915 that supply jam plate 97 butt, and when jam plate 97 butt in butt pole 915, jam plate 97 covers export 912 completely to when changing or clean filter screen 96, reduce the risk of the sudden change of air pressure in box 91.
Referring to fig. 5, a funnel 98 communicated with the inner cavity of the box 91 is fixed on the bottom wall of the box 91, a collecting box 99 used for collecting grease cleaned by the grease cleaning mechanism 95 is connected to the periphery of one end, far away from the box 91, of the funnel 98 in a threaded manner, and the collecting box 99 is in the shape of a cylindrical tank. After the subsequent specified cleaning time is reached, the bolts between the sealing cover 10 and the side wall of the box body 91 are taken down, then the sealing cover 10 is taken down, the blocking plate 97 blocks the outlet 912 through the compression spring 9131, the filter screen 96 can be taken out from the box body 91 for replacement or cleaning through the through hole 914, meanwhile, the collection box 99 is rotated, the collection box 99 is taken down from the funnel 98, the grease in the collection box 99 can be poured into a specified position, and the grease in the collection box 99 is emptied.
The implementation principle of a centralized gas supply system in the embodiment of the application is as follows: machine in the workshop starts air compressor machine 1 and vacuum pump 3 earlier before the operation, and air compressor machine 1 supplyes compressed air to first gas pitcher 7, and vacuum pump 3 takes out the air in the second gas pitcher 8 and separates so that the tank cavity of second gas pitcher 8 forms the negative pressure.
When the machine works, the electromagnetic valve 6 is started, the air supply branch pipe 21 transmits the compressed air in the air supply pipe 2 to the air cylinder 5, a piston rod of the air cylinder 5 is pushed to stretch out, and in the process that the piston rod stretches out, the low-pressure air flowing out of the air exhaust port 63 is pumped out through the negative pressure in the air exhaust branch pipe 41, so that the thrust of the compressed air pushing the piston rod is reduced, and the use amount of the compressed air in the air cylinder 5 to the first air tank 7 is reduced.
When the electromagnetic valve 6 is started, the time switch 942 is triggered for a set time, the step-up transformer 941 energizes the positive plate 92 and the negative plate 93 respectively to generate a high-voltage electrostatic field, the gas in the air exhaust branch pipe 41 enters the inner cavity of the box 91 from the inlet 911 and impacts the windward surface 9521, the impact of the windward surface 9521 drives the scraper 951 hinged to the inner side wall of the box 91 to overturn, and the scraper 951 slows down the flow rate of the gas flowing into the box 91, so that the flow rate of the gas containing grease in the box 91 is slowed down. When gas passes through the clearance between positive plate 92 and the negative plate 93, the gas that has the grease is ionized, decomposed, and carbonized under the high-voltage electrostatic field, and under the effect of electric field force, the atomizing oil drops or the gasification oil drops adsorb on the surface of positive plate 92, and the gas in box 91 is after the filtration of filter screen 96 and high-voltage electrostatic field, flows out export 912 and gets into in exhaust tube 4 and flow to second gas pitcher 8, and the gas that draws away in the second gas pitcher 8 through vacuum pump 3 at last discharges to the atmosphere in. When the inlet 911 has no gas flowing, the gravity block 952 falls freely under the influence of gravity, the scraper 951 scrapes off the grease attached to the surface of the positive plate 92, the grease flows into the collecting box 99 through the guidance of the hopper 98, and the scraper 951 abuts against the side wall of the second abutting block 954 again.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A centralized gas supply system is characterized in that: comprises an air compressor (1), an air supply pipe (2), a vacuum pump (3), an exhaust pipe (4), an air cylinder (5) and an electromagnetic valve (6); the air outlet end of the air compressor (1) is connected with a first air tank (7) through a pipeline; the gas supply pipe (2) is communicated with the first gas tank (7); an air supply branch pipe (21) communicated with the pipe cavity of the air supply pipe (2) is fixed on the peripheral side of the air supply pipe (2); the pipeline at the air exhaust end of the vacuum pump (3) is connected with a second air tank (8); the extraction pipe (4) is communicated with the second gas tank (8); an air exhaust branch pipe (41) communicated with the pipe cavity of the air exhaust pipe (4) is fixed on the peripheral side of the air exhaust pipe (4); the cylinder (5) is connected with the electromagnetic valve (6) through a pipeline; the solenoid valve (6) has an air inlet (61) and an air outlet (63); one end of the air supply branch pipe (21) far away from the air supply pipe (2) is connected to the air inlet (61); one end of the air exhaust branch pipe (41) far away from the air exhaust pipe (4) is connected to the air exhaust port (63).
2. A central gas supply system according to claim 1, wherein: the gas supply pipe (2) is a closed loop pipeline.
3. A central gas supply system according to claim 1, wherein: and an oil-gas separation device (9) for oil-gas separation is arranged on the side wall of the extraction pipe (4).
4. A central gas supply system according to claim 3, wherein: the oil-gas separation device (9) is arranged at the joint of the air exhaust pipe (4) and the air exhaust branch pipe (41).
5. A central gas supply system according to claim 4, wherein: the oil-gas separation device (9) comprises a box body (91), a positive plate (92) fixed on the inner side wall of the box body (91), a negative plate (93) fixed on the inner side wall of the box body (91) and a voltage transformation module (94) fixed on the outer side wall of the box body (91); the two sides of the box body (91) which are deviated from each other are respectively provided with an inlet (911) and an outlet (912) which are communicated with the inner cavity of the box body (91); the inlet (911) and the outlet (912) are respectively connected with the air exhaust branch pipe (41) and the air exhaust pipe (4) through pipelines; a filter screen (96) is arranged on the inner wall of the box body (91) at the position of the outlet (912); the positive plate (92) and the negative plate (93) are respectively positioned on the opposite inner side walls of the box body (91); a gap is reserved between the positive plate (92) and the negative plate (93) and both are electrically connected to the voltage transformation module (94); the pressure changing module (94) is controlled to be opened and closed through the electromagnetic valve (6).
6. A central gas supply system according to claim 5, wherein: the oil-gas separation device (9) further comprises an oil stain cleaning mechanism (95) used for cleaning one side of the positive plate (92) facing the negative plate (93) and a collecting box (99) used for collecting oil cleaned by the oil stain cleaning mechanism (95); the collecting box (99) is detachably connected with the box body (91); the inner side wall of the box body (91) at the outlet (912) is movably connected with a blocking plate (97) which is opened and closed at the outlet (912).
7. A central gas supply system according to claim 6, wherein: the oil stain removing mechanism (95) comprises a scraper (951) hinged to the inner wall of the box body (91) and a gravity block (952) fixed at one end, far away from the hinged position of the scraper (951), of the scraper (951); the side wall of the scraper (951) and one side of the positive plate (92) facing the negative plate (93) are in a mutually abutting relationship; a first abutting block (953) and a second abutting block (954) which are abutted by the scraper (951) are fixed on the inner wall of the box body (91); when the scraper (951) abuts against the second abutting block (954), one end, away from the hinged position of the scraper (951), of the scraper faces the inlet (911), and one side, facing the inlet (911), of the gravity block (952) is provided with a windward surface (9521).
8. A central gas supply system according to claim 7, wherein: and an oil drainage layer is arranged on the surface of the scraper (951).
9. A central gas supply system according to claim 7, wherein: the scraper (951) is made of an insulating material.
10. A central gas supply system according to claim 6, wherein: through holes (914) for the filter screen (96) to pass through are formed in the side wall of the box body (91) at the position corresponding to the filter screen (96); a sliding rod (913) for the sliding connection of the filter screen (96) is arranged on the inner side wall of the box body (91); the outer side wall of the box body (91) is provided with a sealing cover (10) for plugging the through hole (914); the cover (10) is connected to the outer side wall of the box body (91) through bolts.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110091253.4A CN112944215A (en) | 2021-01-22 | 2021-01-22 | Centralized gas supply system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110091253.4A CN112944215A (en) | 2021-01-22 | 2021-01-22 | Centralized gas supply system |
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| CN112944215A true CN112944215A (en) | 2021-06-11 |
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Application publication date: 20210611 |