CN113790155B - Oil injection device of double-screw air compressor - Google Patents
Oil injection device of double-screw air compressor Download PDFInfo
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- CN113790155B CN113790155B CN202111071793.2A CN202111071793A CN113790155B CN 113790155 B CN113790155 B CN 113790155B CN 202111071793 A CN202111071793 A CN 202111071793A CN 113790155 B CN113790155 B CN 113790155B
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- pressure sensing
- oil
- oil injection
- cavity
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/082—Details specially related to intermeshing engagement type pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention relates to the technical field of mechanical industry and discloses a double-screw air compressor oil injection device which comprises a base, a compression cavity positioned in the base, screws positioned in the compression cavity, air inlets and air outlets positioned at two ends of the base, wherein an oil injection port I is formed in one end, close to the air inlet, of the bottom of the base. According to the invention, through the designed extrusion plate, the pressing block and the valve plate, after the temperature in the pressure sensing cavity is too high or too low to increase or reduce the oil injection quantity, the internal high temperature cannot be timely discharged to continuously output the large oil injection quantity or the internal continuous low temperature to cause hard friction and the temperature generated by compressed gas cannot be timely increased to the temperature difference in the pressure sensing cavity, when the pipe diameter of the elastic rubber pipe is adjusted through rotation of the extrusion plate, the pressing block synchronously drives the valve plate to move, so that the valve port on the valve plate synchronously changes, the input cooling liquid is increased or reduced, and the temperature in the pressure sensing cavity can be rapidly adjusted.
Description
Technical Field
The invention relates to the technical field of mechanical industry, in particular to an oil injection device of a double-screw air compressor.
Background
The double-screw air compressor is a device for compressing the introduced gas and exhausting high-pressure gas through continuous engagement of two screws, the temperature of the compressed gas continuously rises in the continuous engagement process of the two screws, the hard friction between the screws and a compression cavity are increased, so that the vibration of the air compressor is increased, the fluctuation of gas output is large, the service life of the air compressor is shortened, and the long-time hard friction needs larger input power to support the normal operation of the air compressor, so that most of the existing air compressors can introduce oil into the compression cavity at the front end of the compression cavity, the oil is mixed into the compression gas, the screws adhere to the oil to form an oil film in the engagement process, the hard friction is reduced, and the thermal damage is reduced.
However, after the existing oil is introduced into the compression cylinder, if the amount of the introduced oil is too small, the introduced oil is continuously consumed by the screw rod along the way in the process of advancing to the exhaust port, so that the screw rod close to the exhaust port cannot form a normal oil film or the oil film thickness is lower, hard friction still exists, and when the amount of the introduced oil is too large, the introduced oil cannot be completely consumed by the screw rod to form an oil film, so that the content of the oil in the discharged unit compressed gas is high, and the difficulty of subsequent oil-gas separation is improved.
Disclosure of Invention
Aiming at the defects of the prior double-screw air compressor oil injection device in the use process, the invention provides the double-screw air compressor oil injection device which has the advantages of injecting oil at a plurality of positions, heating by hard friction and forming a pressure difference power source by heat conduction of compressed gas temperature, changing the pipe diameter of an elastic rubber pipe to control the oil output quantity, adjusting the circulation quantity of cooling liquid to control the temperature value of the power source, and solves the technical problems of uncontrollable oil input quantity, damage caused by the hard friction and increased input power caused by the hard friction in the prior art.
The invention provides the following technical scheme: the utility model provides a double screw air compressor machine oil injection device, includes the base, is located the compression chamber of base, is located the compression chamber the screw rod, is located the air inlet and the gas vent at base both ends, oil spout I has been seted up to the one end that the base bottom is close to the air inlet, three equipartition's oil spout II has been seted up to the bottom of compression chamber, the pressure sensing chamber of three equipartition has been seted up to the bottom of base, the top external winding of pressure sensing chamber has cooling ring pipe, the bottom fixedly connected with spring I of pressure sensing chamber, spring I's top fixedly connected with pressure sensing piston, pressure sensing piston's middle part fixedly connected with symmetrical magnet I, pressure sensing piston's center activity has cup jointed the reducing pipe, the oil inlet has been seted up at the bottom center of reducing pipe, the bottom fixedly connected with oil pipe, the flexible rubber pipe has been cup jointed to the activity, the articulated roller of reducing pipe bottom fixedly connected with symmetry has the stripper plate on the articulated roller, the top fixedly connected with spring II of stripper plate, the bottom fixedly connected with valve plate III has the valve plate, the valve plate fixedly connected with one end of valve plate, valve plate fixedly connected with III has one end, the valve plate fixedly connected with top III.
Preferably, the oil spout I is close to the one end intercommunication of air inlet with the compression chamber, the top center in pressure sensing chamber is through oil spout II and compression chamber intercommunication, the top in pressure sensing chamber is four centimetres with the distance value in compression chamber bottom, the flat pressure hole with external intercommunication has been seted up to the bottom in pressure sensing chamber, the outside in pressure sensing piston is laminated with the inner wall in pressure sensing chamber.
Preferably, the elastic force values of the three springs I are gradually increased in the direction from the air inlet to the air outlet.
Preferably, the reducer pipe is a hollow cuboid, the length value and the width value of the reducer pipe are the same, and the top and the bottom of the reducer pipe are fixedly connected with the top and the bottom of the pressure sensing cavity.
Preferably, the bottom end of the elastic rubber tube is fixedly connected with the oil inlet, the top end of the elastic rubber tube is fixedly connected with the bottom end of the oil injection port II, and the diameter value of the elastic rubber tube is half of the length value of the reducer pipe.
Preferably, the extrusion plate is attached to the elastic rubber tube, the width value of the extrusion plate is nine times of the zero point of the width value of the reducer pipe, the top end of the extrusion plate is arc-shaped, and the bottom surface of the pressing block is an inclined surface.
Preferably, the magnetic force of the magnet II decreases gradually from top to bottom, and the opposite surfaces of the magnet II and the magnet I are homopolar.
Preferably, the other end of the cooling loop is fixedly connected with a cold liquid outlet pipe, and the cooling loop is communicated with a cooling circulation system of the air compressor through the cold liquid inlet pipe and the cold liquid outlet pipe.
Preferably, the valve plate penetrates through the cold liquid inlet pipe and the flat pressing hole to the inner cavity of the reducer pipe, one end of the valve plate, which is positioned in the inner cavity of the reducer pipe, is arc-shaped, the same end of the valve plate is attached to the inclined surface of the pressing block, and the valve port is positioned in the center of the cold liquid inlet pipe when the spring III is compressed to the maximum extent.
The invention has the following beneficial effects:
1. according to the invention, through the designed pressure sensing cavity and the pressure sensing piston, the temperature of compressed gas in the compression cavity and the temperature generated by the hard friction of the screw rod can be transmitted into the pressure sensing cavity, so that the pressure sensing cavity is influenced by temperature difference to form a differential pressure environment, the pressure sensing piston is displaced, meanwhile, through the designed magnet I, the magnet II, the extrusion plates and the elastic rubber tube, the displacement of the pressure sensing piston can drive the magnet I and the magnet II with different magnetic force magnitudes to be in the same straight line, so that the repulsive force magnitude between the magnet I and the magnet II is changed, the distance between the two extrusion plates is changed, the pipe diameter of the elastic rubber tube is changed, the flow quantity of oil in the elastic rubber tube is changed, and therefore, the oil quantity sprayed into the compression cavity can be self-adjusted according to actual conditions, and the conditions that the oil component in output gas is more due to overlarge oil ejection quantity, and the oil film between the two screw rods, the two screw rods and the compression cavity cannot be formed due to hard friction damage and the increase of input power are avoided.
2. According to the invention, through the designed extrusion plate, the pressing block and the valve plate, after the temperature in the pressure sensing cavity is too high or too low to increase or reduce the oil injection quantity, the internal high temperature cannot be timely discharged to continuously output the large oil injection quantity or the internal continuous low temperature to cause hard friction and the temperature generated by compressed gas cannot be timely increased to the temperature difference in the pressure sensing cavity, when the pipe diameter of the elastic rubber pipe is adjusted through rotation of the extrusion plate, the pressing block synchronously drives the valve plate to move, so that the valve port on the valve plate synchronously changes, the input cooling liquid is increased or reduced, and the temperature in the pressure sensing cavity can be rapidly adjusted.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a pressure sensing chamber according to the present invention;
FIG. 3 is a schematic diagram showing a state of the pressure sensing chamber of the present invention when the temperature is raised;
fig. 4 is an enlarged schematic view of a portion of the structure of fig. 2 a in accordance with the present invention.
In the figure: 1. a base; 2. a compression chamber; 3. a screw; 4. an air inlet; 5. an exhaust port; 6. an oil spraying port I; 7. an oil spraying port II; 8. a pressure sensing cavity; 801. flattening the hole; 9. a spring I; 10. a pressure-sensitive piston; 101. a magnet I; 11. an oil delivery pipe; 12. a reducer pipe; 121. an oil inlet; 13. an elastic rubber tube; 14. a hinge roller; 15. an extrusion plate; 151. pressing a block; 16. a magnet II; 17. a spring II; 18. a cooling loop; 181. a cold liquid inlet pipe; 182. a cold liquid outlet pipe; 19. a valve plate; 191. a valve port; 20. a spring III; 21. a movable chamber.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-3, a double-screw air compressor oil injection device comprises a base 1, a compression cavity 2 positioned in the base 1, screws 3 positioned in the compression cavity 2, an air inlet 4 and an air outlet 5 positioned at two ends of the base 1, wherein an oil injection port I6 is formed at one end of the bottom of the base 1 close to the air inlet 4, the oil injection port I6 is communicated with one end of the compression cavity 2 close to the air inlet 4, so that initial lubricating oil liquid is sprayed out of the oil injection port I6, an oil film can be formed on the screws 3 close to the air inlet 4, three evenly distributed oil injection ports II7 are formed at the bottom end of the compression cavity 2, three evenly distributed pressure sensing cavities 8 are formed at the bottom of the base 1, the top centers of the pressure sensing cavities 8 are communicated with the compression cavity 2 through the oil injection ports II7, the distance between the top ends of the pressure sensing cavities 8 and the bottom ends of the compression cavity 2 is four centimeters, so that hard friction between the two screws 3, heat generated by the hard friction between the screws 3 and the compression cavity 2 and heat generated after gas compression can be transferred into the pressure sensing cavities 8, the bottom end of the pressure sensing cavity 8 is provided with a flat pressure hole 801 communicated with the outside, so that the bottom air pressure of the pressure sensing cavity 8 is always balanced with the outside, the top of the pressure sensing cavity 8 can form air pressure difference under the influence of temperature difference after being heated, the bottom end of the pressure sensing cavity 8 is fixedly connected with a spring I9, the elastic values of the three springs I9 are gradually increased in the direction from the air inlet 4 to the air outlet 5, when more heat generated by continuously compressing air in the direction towards the air outlet 5 is transferred into the pressure sensing cavity 8, the air pressure at the top of the pressure sensing cavity 8 close to the air outlet 5 is larger, at the moment, the movement value of the pressure sensing piston 10 can be kept relatively stable due to the increase of the elastic force of the spring I9, the pressure sensing piston 10 close to the air outlet 5 is prevented from being greatly started, and excessive oil is sprayed out, the problem of large oil liquid content in discharged compressed gas is caused, the top end of the spring I9 is fixedly connected with a pressure sensing piston 10, the outer side of the pressure sensing piston 10 is attached to the inner wall of the pressure sensing cavity 8, and the middle part of the pressure sensing piston 10 is fixedly connected with a symmetrical magnet I101.
Referring to fig. 1-3, a reducer pipe 12 is movably sleeved at the center of a pressure sensing piston 10, the reducer pipe 12 is a hollow cuboid, the length value and the width value of the reducer pipe 12 are the same, so that an extrusion plate 15 can freely move, the top and the bottom of the reducer pipe 12 are fixedly connected with the top and the bottom of a pressure sensing cavity 8, an oil inlet 121 is formed in the center of the bottom of the reducer pipe 12, an oil conveying pipe 11 is fixedly connected to the bottom of the reducer pipe 12, an elastic rubber pipe 13 is movably sleeved in the reducer pipe 12, the bottom of the elastic rubber pipe 13 is fixedly connected with the oil inlet 121, the top of the elastic rubber pipe 13 is fixedly connected with the bottom of an oil injection port II7, the oil cannot be introduced into the reducer pipe 12, the problem that the extrusion plate 15 fails in movement is caused, the diameter value of the elastic rubber pipe 13 is half the length value of the reducer pipe 12, the elastic rubber pipe 13 can be completely covered by the extrusion plate 15, and when the extrusion plate 15 extrudes the elastic rubber pipe 13, the deformation of the elastic rubber pipe 13 cannot exceed the coverage of the extrusion plate 15, so that the pipe diameter of the elastic rubber pipe 13 fails to be regulated.
Referring to fig. 1-3, the bottom of the reducer pipe 12 is fixedly connected with symmetrical hinge rollers 14, the hinge rollers 14 are hinged with extrusion plates 15, the extrusion plates 15 are attached to the elastic rubber pipe 13, so that the extrusion plates 15 can directly act on the elastic rubber pipe 13 when moving, the elastic rubber pipe 13 can be correspondingly deformed rapidly, the rapid control of the oil passing amount is achieved, the width value of the extrusion plates 15 is nine times of the zero point of the width value of the reducer pipe 12, the extrusion plates 15 cannot be blocked due to the pipe diameter limitation of the reducer pipe 12 when moving, meanwhile, the extrusion plates 15 can completely press the elastic rubber pipe 13, the deformation of the elastic rubber pipe 13 is prevented from exceeding the coverage area of the extrusion plates 15, a new flow passage is formed after the elastic rubber pipe 13 exceeds the extrusion plates 15, the oil is ejected from the new flow passage, the top end of the extrusion plates 15 is arc-shaped, when the extrusion plate 15 extrudes the elastic rubber tube 13, the problem that the service life of the elastic rubber tube 13 is shortened due to hard extrusion cannot occur, the top of the extrusion plate 15 is fixedly connected with a spring II17, the other end of the spring II17 is fixedly connected with the top of the inner wall of the reducer pipe 12, the top of the extrusion plate 15 is fixedly connected with magnets II16 uniformly distributed, the magnetic force of the magnets II16 gradually decreases from top to bottom, the opposite surfaces of the magnets II16 and the magnets I101 are homopolar, the magnets I101 and the magnets II16 with different magnetic force sizes are positioned on the same plane in the process of moving the pressure-sensitive piston 10 up and down, the repulsive force of the magnets I101 and the magnets II16 with different magnetic force sizes is changed, the extrusion plate 15 is enabled to swing, the minimum pipe diameter of the elastic rubber tube 13 is enabled to be continuously changed, and accordingly the ejection amount of oil is adjusted.
Referring to fig. 1-4, a top pressing block 151 is fixedly connected to the bottom of one pressing plate 15, the bottom surface of the top pressing block 151 is an inclined surface, so that the top pressing block 151 can smoothly press a valve plate 19, a cooling ring pipe 18 is wound outside the top of a pressure sensing cavity 8, one end of the cooling ring pipe 18 is fixedly connected with a cold liquid inlet pipe 181, the other end of the cooling ring pipe 18 is fixedly connected with a cold liquid outlet pipe 182, the cooling ring pipe 18 is communicated with a cooling circulation system of an air compressor through the cold liquid inlet pipe 181 and the cold liquid outlet pipe 182, the cooling ring pipe 18 is used for cooling the heating gas at the top of the pressure sensing cavity 8, the condition that the pressure of the heating gas is kept after being heated and expanded, and the oil ejection amount is continuously increased is avoided, a uniformly distributed movable cavity 21 is formed at the bottom of the base 1, one end of the movable cavity 21 is fixedly connected with a spring III20, one end of the spring III20 is fixedly connected with the valve plate 19, a valve port 191 is formed on the valve plate 19, the valve plate 19 penetrates through the cold liquid inlet pipe 181 and the flat pressure hole 801 to the inner cavity of the reducer pipe 12, one end of the valve plate 19, which is positioned in the inner cavity of the reducer pipe 12, is arc-shaped, the same end of the valve plate 19 is attached to the inclined surface of the pressing block 151, the valve port 191 is positioned at the center of the cold liquid inlet pipe 181 when the maximum compression amount of the spring III20 is achieved, after the oil injection amount is increased or reduced due to the fact that the temperature in the pressure sensing cavity 8 is too high or too low, the internal high temperature cannot be timely discharged, the oil injection amount is continuously output or the internal continuous low temperature is caused, the hard friction is caused, the temperature generated by compressed gas cannot be timely increased, when the pipe diameter of the elastic rubber pipe 13 is adjusted through rotation of the extruding plate 15, the pressing block 151 synchronously drives the valve plate 19 to move, so that the valve port 191 on the valve plate 19 is synchronously changed, the input cooling liquid is increased or reduced, so that the temperature in the pressure sensing cavity 8 can be quickly adjusted.
The application method (working principle) of the invention is as follows:
firstly, a double-screw air compressor is started, gas is input into a compression cavity 2 from an air inlet 4, the two screws 3 in the compression cavity 2 compress the gas in the meshing process and gradually push the gas to an air outlet 5, meanwhile, oil is sprayed from an oil spraying port I6, so that the oil is mixed with the compressed air, part of the oil is contacted with the two screws 3 in the meshing process, an oil film is formed between the two screws 3 and the compression cavity 2, the oil in the compressed gas is gradually consumed, then, after the oil film is not formed by the screws 3 around an oil spraying port II7 or the oil film is gradually consumed, the hard friction between the two screws 3 and the compression cavity 2 and the temperature of the compressed gas are transmitted to the top of a pressure sensing cavity 8 below the oil spraying port II7, so that the temperature of the top of the pressure sensing cavity 8 is gradually increased, the gas is expanded, and a pressure sensing piston 10 is gradually displaced downwards under a pressure difference;
then, the magnet I101 synchronously moves downwards, so that the magnet I101 and the magnet II16 with smaller magnetism below are positioned on the same straight line, the repulsive force between the magnet I101 and the magnet II16 is reduced, the extrusion plate 15 attached to the two top extrusion elastic rubber pipes 13 rotates around the hinged roller 14, the minimum pipe diameter of the elastic rubber pipes 13 is gradually increased, oil is sprayed out through the oil spraying port II7, part of the oil is contacted by the two screw rods 3 around the oil spraying port II7 in the meshing process, an oil film is formed between the two screw rods 3 and the compression cavity 2, at the moment, the hard friction is eliminated, the oil film blocks part of the compressed air temperature, meanwhile, the extrusion plate 15 rotates, the pressing block 151 extrudes the valve plate 19, the valve plate 19 moves towards the side far away from the extrusion plate 15, the caliber of the valve port 191 synchronously increases, the circulation amount of the cooling liquid input into the cooling ring pipe 18 increases, and the top temperature of the pressure sensing cavity 8 gradually recovers;
finally, when the top temperature of the pressure sensing cavity 8 is gradually recovered, the pressure sensing piston 10 is gradually lifted, so that the magnet I101 and the magnet II16 with larger magnetism above are positioned on the same straight line, the repulsive force between the magnet I101 and the magnet II16 is increased, the two extrusion plates 15 rotate around the hinged roller 14 again to extrude the elastic rubber tube 13, the pipe diameter of the pressed part of the elastic rubber tube 13 is gradually reduced until the pipe diameter is closed, the spraying amount of oil is gradually reduced until the input is stopped, and finally, after the oil film near the oil spraying opening II7 in the compression cavity 2 is consumed again, the action is repeated in the pressure sensing cavity 8, and the oil spraying is performed.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a double screw air compressor machine oil injection device, includes base (1), is located compression chamber (2) in base (1), is located screw rod (3) in compression chamber (2), is located air inlet (4) and gas vent (5) at base (1) both ends, its characterized in that: the utility model discloses a compression device, including base (1), compression cavity (2), pressure sensing cavity (8), spring I (9) are connected with bottom fixedly in pressure sensing cavity (8), pressure sensing piston (10) are connected with top fixedly in spring I (9), magnet I (101) of symmetry are connected with middle part fixedly in pressure sensing piston (10), oil inlet (121) are seted up at the center of pressure sensing piston (10), oil conveying pipe (11) are connected with bottom fixedly in diameter changing pipe (12), elastic tube (13) have been cup jointed in diameter changing pipe (12) in the activity, articulated roller (14) are connected with symmetrically in diameter changing pipe (12) bottom fixedly, articulated roller (14) are connected with pressure sensing piston (10), pressing plate (15) are connected with pressing plate (16) fixedly in diameter changing pipe (12)'s bottom, pressing plate (15) are connected with pressing plate (16) fixedly in diameter changing pipe (12), the movable cavity (21) of equipartition has been seted up to the bottom of base (1), the one end fixedly connected with spring III (20) of movable cavity (21), the one end fixedly connected with valve plate (19) of spring III (20), valve port (191) have been seted up on valve plate (19).
2. The oil injection device of a twin screw air compressor of claim 1, wherein: the oil spout I (6) is close to the one end intercommunication of air inlet (4) with compression chamber (2), the top center of pressure sensing chamber (8) is through oil spout II (7) and compression chamber (2) intercommunication, the distance value of the top of pressure sensing chamber (8) and compression chamber (2) bottom is four centimetres, flat pressure hole (801) with external intercommunication have been seted up to the bottom of pressure sensing chamber (8), the outside and the inner wall laminating of pressure sensing chamber (8) of pressure sensing piston (10).
3. The oil injection device of a twin screw air compressor of claim 1, wherein: in the direction from the air inlet (4) to the air outlet (5), the elastic values of the three springs I (9) are gradually increased.
4. The oil injection device of a twin screw air compressor of claim 1, wherein: the reducer pipe (12) is a hollow cuboid, the length value and the width value of the reducer pipe (12) are the same, and the top and the bottom of the reducer pipe (12) are fixedly connected with the top and the bottom of the pressure sensing cavity (8).
5. The oil injection device of a twin screw air compressor of claim 1, wherein: the bottom of the elastic rubber tube (13) is fixedly connected with the oil inlet (121), the top of the elastic rubber tube (13) is fixedly connected with the bottom of the oil injection port II (7), and the diameter value of the elastic rubber tube (13) is half of the length value of the reducer tube (12).
6. The oil injection device of a twin screw air compressor of claim 1, wherein: the extrusion plate (15) is attached to the elastic rubber tube (13), the width value of the extrusion plate (15) is nine times of the zero point of the width value of the reducer pipe (12), the top end of the extrusion plate (15) is arc-shaped, and the bottom surface of the pressing block (151) is an inclined surface.
7. The oil injection device of a twin screw air compressor of claim 1, wherein: the magnetic force of the magnet II (16) is gradually decreased from top to bottom, and the opposite surfaces of the magnet II (16) and the magnet I (101) are homopolar.
8. The oil injection device of a twin screw air compressor of claim 2, wherein: one end fixedly connected with cold liquid feed pipe (181) of cooling ring pipe (18), the other end fixedly connected with cold liquid exit tube (182) of cooling ring pipe (18), cooling ring pipe (18) are through cold liquid feed pipe (181) and cold liquid exit tube (182) and the cooling circulation system intercommunication of air compressor machine.
9. The oil injection device of a twin screw air compressor of claim 8, wherein: the valve plate (19) penetrates through the cold liquid inlet pipe (181) and the flat pressing hole (801) to the inner cavity of the reducer pipe (12), one end of the valve plate (19) located in the inner cavity of the reducer pipe (12) is arc-shaped, the same end of the valve plate (19) is attached to the inclined surface of the pressing block (151), and the valve port (191) is located in the center of the cold liquid inlet pipe (181) when the spring III (20) is compressed to the maximum extent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111071793.2A CN113790155B (en) | 2021-09-14 | 2021-09-14 | Oil injection device of double-screw air compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111071793.2A CN113790155B (en) | 2021-09-14 | 2021-09-14 | Oil injection device of double-screw air compressor |
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| CN113790155A CN113790155A (en) | 2021-12-14 |
| CN113790155B true CN113790155B (en) | 2023-08-08 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5236320A (en) * | 1991-07-18 | 1993-08-17 | Kabushiki Kaisha Kobe Seiko Sho | Oil injection type screw compressor |
| CN201396283Y (en) * | 2009-05-09 | 2010-02-03 | 绍兴瑞气压缩机有限公司 | Injection temperature control valve of air compressor |
| CN107906008A (en) * | 2017-11-16 | 2018-04-13 | 宁波市鄞州堃信工业产品设计有限公司 | A kind of screw air compressor fueling injection equipment |
| EP3315780A1 (en) * | 2016-10-28 | 2018-05-02 | ALMiG Kompressoren GmbH | Oil-injected screw air compressor |
| JP2019044741A (en) * | 2017-09-06 | 2019-03-22 | 株式会社日立製作所 | Oiling type air compressor |
| CN109869251A (en) * | 2019-02-28 | 2019-06-11 | 一汽解放汽车有限公司 | A kind of coupling fluid-structure fuel injector |
-
2021
- 2021-09-14 CN CN202111071793.2A patent/CN113790155B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5236320A (en) * | 1991-07-18 | 1993-08-17 | Kabushiki Kaisha Kobe Seiko Sho | Oil injection type screw compressor |
| CN201396283Y (en) * | 2009-05-09 | 2010-02-03 | 绍兴瑞气压缩机有限公司 | Injection temperature control valve of air compressor |
| EP3315780A1 (en) * | 2016-10-28 | 2018-05-02 | ALMiG Kompressoren GmbH | Oil-injected screw air compressor |
| JP2019044741A (en) * | 2017-09-06 | 2019-03-22 | 株式会社日立製作所 | Oiling type air compressor |
| CN107906008A (en) * | 2017-11-16 | 2018-04-13 | 宁波市鄞州堃信工业产品设计有限公司 | A kind of screw air compressor fueling injection equipment |
| CN109869251A (en) * | 2019-02-28 | 2019-06-11 | 一汽解放汽车有限公司 | A kind of coupling fluid-structure fuel injector |
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| CN113790155A (en) | 2021-12-14 |
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Effective date of registration: 20230714 Address after: 334400 plant 7, standard plant, high tech Industrial Park, Yiyang County, Shangrao City, Jiangxi Province Applicant after: Mckays Energy Equipment Co.,Ltd. Address before: 150000 gate 10, floor 2, No. 9, Xiangcheng street, Xiangfang District, Harbin, Heilongjiang Province Applicant before: Cao Buyao |
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