CN113566003A - Vacuum pressure valve for oil storage tank of gas station - Google Patents
Vacuum pressure valve for oil storage tank of gas station Download PDFInfo
- Publication number
- CN113566003A CN113566003A CN202110833576.6A CN202110833576A CN113566003A CN 113566003 A CN113566003 A CN 113566003A CN 202110833576 A CN202110833576 A CN 202110833576A CN 113566003 A CN113566003 A CN 113566003A
- Authority
- CN
- China
- Prior art keywords
- storage tank
- adjusting
- oil storage
- pressure
- pressure valve
- 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.)
- Pending
Links
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims description 33
- 230000005484 gravity Effects 0.000 claims description 18
- 230000009471 action Effects 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims 3
- 239000012535 impurity Substances 0.000 abstract description 6
- 238000001914 filtration Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Images
Classifications
-
- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/22—Safety features
- B65D90/32—Arrangements for preventing, or minimising the effect of, excessive or insufficient pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/22—Safety features
- B65D90/32—Arrangements for preventing, or minimising the effect of, excessive or insufficient pressure
- B65D90/34—Venting means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention discloses a vacuum pressure valve for an oil storage tank of a gas station, which is characterized by comprising a vacuum pressure valve shell, and a disc cap and a fixed sleeve which are positioned on the upper side and the lower side of the vacuum pressure valve shell, wherein a fixed support and a shell notch matched with the fixed support are arranged in the vacuum pressure valve shell, a pressure adjusting disc capable of sliding up and down is arranged in the fixed support in an inserting manner, a plurality of air-permeable notches are arranged on the side surface of the fixed support, a first filter screen structure matched with the fixed support is covered on the outer side of the fixed support, an adjusting groove is arranged at the bottom of the pressure adjusting disc, an adjusting rod capable of sliding up and down is arranged on the adjusting groove in a penetrating manner, an adjusting piston is fixedly connected to the lower end of the adjusting rod, a plurality of adjusting through holes are also arranged in the adjusting groove, and an elastic support matched with the pressure adjusting disc is sleeved on the upper side of the adjusting rod. The invention has the advantages of simple structure, stable tank pressure, high reliability, effective filtration of impurities in air and avoidance of influence on oil quality.
Description
Technical Field
The invention relates to the technical field of petrochemical equipment, in particular to a vacuum pressure valve for an oil storage tank of a gas station.
Background
The vacuum pressure valve, i.e. the vacuum pressure relief valve, is a protection device used for the top of powder storage bins in the industries of thermal power generation, building materials, metallurgy, chemical engineering and the like. The silo is protected from excessive positive and negative pressures during inflation and venting and abnormal temperature changes.
The vacuum pressure valve for the oil storage tank of the oil station and the oil depot consists of a pressure valve and a vacuum valve. The oil tank is arranged at the height of about 4.5 meters of a vent pipe of the oil storage tank, and the oil tank is used for keeping the sealing performance of the oil tank under the normal condition and reducing the evaporation loss of oil products to a certain extent. And when necessary, the pressure inside and outside the oil tank can be automatically opened and regulated to balance the pressure inside and outside the oil tank, so that the oil tank is safe.
When the oil gas pressure in the tank is higher than the pressure allowed by the oil tank, the oil vapor overflows through the pressure valve, and the vacuum valve is closed at the moment; when the pressure of oil gas in the tank is less than the allowable vacuum degree of the oil tank, fresh air enters the tank through the vacuum valve, and the pressure valve is in a closed state at the moment.
At present, the Chinese patent with the publication number of CN 208138537U discloses an anti-blocking vacuum pressure valve, which comprises a vacuum pneumatic cylinder, a pressure valve plastic interface, a trapezoidal disc cap, a disc cap support plate, a pneumatic cylinder chassis, a pneumatic conveying pipe, a fixed shaft wheel body, a linking sleeve, a large-diameter valve port and an E-shaped pinch plate, wherein the disc cap support plate is provided with more than two clamping plates which are vertically arranged below the trapezoidal disc cap and are connected in a surrounding way, and the pressure valve plastic interface is horizontally fixed on the trapezoidal disc cap.
Although this patent can maintain the volatilization of certain jar pressure in order to reduce oil gas, vacuum pressure valve opens when oil storage tank internal pressure is less than external pressure, inside and outside both sides direct intercommunication for inside dust particulate matter gets into the oil storage tank along with the outside air, the quality of finished product oil in the influence oil storage tank. Meanwhile, the existing vacuum pressure valve has the problem of low sensitivity, so that the pressure in the tank cannot be quickly restored when the pressure in the tank is abnormal, and the quality of oil products in the tank is further influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the vacuum pressure valve for the oil storage tank of the gas station, which has the advantages of simple structure, stable tank pressure, high reliability, effective filtration of impurities in air and avoidance of influence on the quality of oil products.
In order to achieve the purpose, the invention provides the following technical scheme: a vacuum pressure valve for an oil storage tank of a gas station comprises a vacuum pressure valve shell, and a disc cap and a fixed sleeve which are positioned on the upper side and the lower side of the vacuum pressure valve shell, wherein the lower end of the fixed sleeve is provided with a connecting port connected with the oil storage tank, the vacuum pressure valve shell is internally provided with a fixed support and a shell notch matched with the fixed support, the shell notch is communicated with the fixed sleeve, a pressure adjusting disc capable of sliding up and down is arranged in the fixed support in an inserting manner, the side surface of the fixed support is provided with a plurality of uniformly distributed air-permeable notches, the outer side of the fixed support is covered with a first filter screen structure matched with the fixed support, the pressure adjusting disc is arranged in a cylindrical structure, the bottom of the pressure adjusting disc is provided with an adjusting groove, an adjusting rod capable of sliding up and down is arranged on the adjusting groove in a penetrating manner, the lower end of the adjusting rod is fixedly connected with an adjusting piston, and a plurality of adjusting through holes uniformly distributed around the adjusting rod are also arranged in the adjusting groove, the upper side of the adjusting rod is sleeved with an elastic bracket matched with the pressure adjusting disc;
when the internal pressure of the oil storage tank is overlarge, the internal pressure of the oil storage tank enables the pressure adjusting disc to overcome the gravity of the pressure adjusting disc and slide upwards, so that the internal pressure of the oil storage tank is discharged from the ventilating notch until the internal pressure of the oil storage tank does not overcome the gravity of the pressure adjusting disc enough, the pressure adjusting disc moves downwards under the action of the gravity and is pressed on the bottom of the fixed support, and the internal pressure of the oil storage tank is kept stable;
when the internal pressure of the oil storage tank is too small, the external air pressure of the oil storage tank enables the adjusting piston to overcome the elasticity of the elastic support and move downwards, so that the outside of the oil storage tank is communicated with the inside of the oil storage tank, external air enters the inside of the oil storage tank until the external pressure of the oil storage tank is not enough to overcome the elasticity of the elastic support, the pressure adjusting disc moves upwards under the action of the elasticity to reset and close the adjusting through hole, and the internal pressure of the oil storage tank is kept stable;
when the internal pressure of the oil storage tank is stable, the pressure adjusting disc moves downwards under the action of gravity and presses the bottom of the fixed support, and the pressure adjusting disc moves upwards under the action of elasticity to reset and closes the adjusting channel, so that the internal pressure of the oil storage tank is kept stable.
By adopting the technical scheme, when the internal pressure of the oil storage tank is overlarge, the pressure adjusting disc overcomes the gravity and slides upwards to discharge the internal pressure of the oil storage tank from the ventilating notch, otherwise, the pressure adjusting disc moves downwards and presses the bottom of the fixed support to keep the internal pressure of the oil storage tank stable, when the internal pressure of the oil storage tank is overlarge, the external air pressure enables the adjusting piston to overcome the elasticity of the elastic support and move downwards to enable the outside of the oil storage tank to be communicated with the inside, the external air enters the inside of the oil storage tank, otherwise, the pressure adjusting disc moves upwards under the action of the elasticity to reset and close the adjusting through hole, so that the internal pressure of the oil storage tank is kept stable, the sensitivity is high, the reliability is high, and the internal pressure in the tank is effectively guaranteed to be stable; simultaneously in the in-process that outside air inflow jar or jar interior oil gas flow play, first filter screen structure filters, prevents that external impurity from getting into jar interior quality that influences the finished product oil.
The invention is further configured to: the lower side of the pressure adjusting disc is provided with a limiting groove matched with the fixed support, the fixed support is provided with a limiting step matched with the pressure adjusting disc and an adjusting sealing ring, and the bottom of the fixed support is provided with a sealing groove matched with the adjusting sealing ring.
Through adopting above-mentioned technical scheme, spacing recess plays limiting displacement, guarantees that pressure adjustment dish can move to the position when receiving the effect of gravity downstream in the fixed bolster, guarantees jar internal pressure stability, adjusts the leakproofness that the sealing washer guaranteed fixed bolster and pressure adjustment dish department, and the sealing washer is adjusted in the sealed recess pressfitting of fixed bolster bottom, prevents to adjust the sealing washer position and takes place the skew and influence sealed effect.
The invention is further configured to: the adjusting piston is further provided with a circular sealing gasket matched with the adjusting groove, the circular sealing gasket is sleeved on the adjusting rod, the upper end of the adjusting rod is provided with a limiting nut matched with the elastic support, the limiting nut and the adjusting rod are fixedly connected with each other in a threaded mode, and the elastic support is a compression spring.
Through adopting above-mentioned technical scheme, the circular sealed pad can further improve the leakproofness of adjusting piston and regulation groove, guarantee pressure adjustment's reliability, the circular sealed pad can play the shock attenuation effect when adjusting piston resets simultaneously, reduce the wearing and tearing of adjusting piston and then improve its life, stop nut plays limiting displacement to elastic support, stop nut adjusts elastic support's extension length simultaneously, and then plays the pressure value that the control pressure adjusting disk opened, with the jar pressure demand that is suitable for different scenes.
The invention is further configured to: the upper end of the fixing sleeve is fixedly connected with the vacuum pressure valve shell in a bolt mode, the lower end of the fixing sleeve is fixedly connected with the connecting port in a threaded mode, a second sealing ring is further arranged at the joint of the fixing sleeve and the connecting port, a second filter screen structure matched with the fixing sleeve is further arranged in the connecting port in an inserting mode, a flanging structure is arranged at the upper end of the second filter screen structure, and the flanging structure is clamped between the fixing sleeve and the connecting port.
Through adopting above-mentioned technical scheme, the second sealing washer is used for guaranteeing the leakproofness of fixed sleeve and connection port department, improves the reliability, and the reliability of product in the oil storage tank is guaranteed in the second filter screen structure prevents that the foreign matter from passing through in the connection port gets into the jar, and turn-ups structure is used for fixed second filter screen structure, prevents that the second filter screen from taking place not hard up.
The invention is further configured to: the vacuum pressure valve is characterized in that a first annular bulge matched with the fixed support is arranged at the bottom of the vacuum pressure valve shell, a plurality of limiting fixture blocks are arranged on the first annular bulge, the surfaces of the limiting fixture blocks are in arc transition, a plurality of guide bulges matched with the pressure adjusting disc are arranged on the side surface of the fixed support, and the guide bulges and the fixed support are arranged in an integrated structure.
Through adopting above-mentioned technical scheme, first annular arch and spacing fixture block mutually support and make the installation of fixed bolster detachable mode fix in vacuum pressure valve casing bottom, are convenient for carry out the dismouting, and the direction arch is used for guaranteeing that the pressure adjustment dish reciprocates in the fixed bolster is stable, guarantees pressure adjustment's precision.
The invention is further configured to: the disc cap is provided with a second annular bulge and a third annular bulge which are matched with the first filter screen structure, the second annular bulge is provided with a plurality of first forcing blocks which are uniformly distributed, a plurality of supporting plates matched with the vacuum pressure valve shell are uniformly distributed on the disc cap, the disc cap and the vacuum pressure valve shell are connected in a clamping mode through limiting buckles and limiting clamping grooves, and second reinforcing blocks connected with the first annular bulge are uniformly distributed on the side wall of the vacuum pressure valve shell.
Through adopting above-mentioned technical scheme, the protruding first filter screen structure of pressfitting that is used for of second annular prevents that the circumstances that reciprocates from appearing in first filter screen structure, and the protruding skew circumstances around preventing first filter screen structure from appearing of third annular, and first boss improves the bellied mechanical strength of second annular, and the backup pad is used for supporting the disc cap, and the second boss is used for strengthening.
The invention is further configured to: first filter screen structure and second filter screen structure all set up to the metal filter screen.
Through adopting above-mentioned technical scheme, set up to the damage that the metal filter screen can reduce the filter screen, guarantee filter effect's stability to prolong the life of first filter screen structure and second filter screen structure.
The invention is further configured to: the first filter screen structure and the second filter screen structure are identical in structure, and the first filter screen structure comprises a filter paper layer and metal filter screen layers positioned on the inner side and the outer side of the filter paper layer.
Through adopting above-mentioned technical scheme, the filter paper layer can prevent that the oil in the oil storage tank from spilling over outside the oil storage tank, improves the peripheral air quality of oil storage tank, also avoids oil gas easily to cause the conflagration in the peripheral air of oil storage tank.
In conclusion, the invention has the following beneficial effects:
1. when the internal pressure of the oil storage tank is too high, the pressure adjusting disc overcomes the gravity and slides upwards to discharge the internal pressure of the oil storage tank from the ventilating notch, otherwise, the pressure adjusting disc moves downwards and presses the bottom of the fixed support to keep the internal pressure of the oil storage tank stable, when the internal pressure of the oil storage tank is too low, the external air pressure enables the adjusting piston to overcome the elasticity of the elastic support and move downwards to enable the outside of the oil storage tank to be communicated with the inside of the oil storage tank, the external air enters the inside of the oil storage tank, otherwise, the adjusting piston moves upwards under the action of the elasticity to reset and close the adjusting through hole, so that the internal pressure of the oil storage tank is kept stable, the sensitivity is high, the reliability is high, and the internal pressure in the tank is effectively guaranteed to be stable; meanwhile, in the process that external air flows into the tank or oil gas in the tank flows out, the first filter screen structure filters to prevent external impurities from entering the tank to influence the quality of the finished oil;
2. the sealing performance of the adjusting piston and the adjusting groove can be further improved through the circular sealing gasket, the reliability of pressure adjustment is guaranteed, the circular sealing gasket can play a damping effect when the adjusting piston resets, the abrasion of the adjusting piston is reduced, the service life of the adjusting piston is prolonged, the limiting nut plays a limiting role for the elastic support, the extending length of the elastic support is adjusted through the limiting nut, the pressure value for controlling the opening of the pressure adjusting disc is played, and the tank pressure requirements of different scenes are met.
Drawings
Fig. 1 is a first perspective view of a first embodiment of the present invention.
Fig. 2 is a perspective view of a second embodiment of the present invention.
Fig. 3 is a side view of a first embodiment of the present invention.
Fig. 4 is a top view of the first embodiment of the invention.
Fig. 5 is a schematic cross-sectional view taken along line a-a in fig. 4.
Fig. 6 is an exploded view of the first embodiment of the present invention.
Fig. 7 is an exploded view of the interior of the vacuum pressure valve housing of fig. 6.
Fig. 8 is a schematic view of a first filter screen structure according to a second embodiment of the invention.
Reference numerals: 1. a vacuum pressure valve housing; 11. a housing slot; 12. a first annular projection; 121. a limiting clamping block; 13. a limiting clamping groove; 14. a second reinforcing block; 2. a disc cap; 21. a second annular projection; 211. a first imposition block; 22. a third annular projection; 23. a support plate; 24. a limiting buckle; 3. fixing the sleeve; 31. a second seal ring; 4. a connection port; 5. fixing a bracket; 51. a vent slot; 52. a limiting step; 53. adjusting the sealing ring; 54. sealing the groove; 55. a guide projection; 6. a pressure regulating disk; 61. adjusting the groove; 611. adjusting the through hole; 62. adjusting a rod; 621. an elastic support; 622. a limit nut; 63. an adjusting piston; 631. a circular seal gasket; 64. a limiting groove; 7. a first screen structure; 71. a filter paper layer; 72. a metal screen layer; 8. a second screen structure; 81. and a flanging structure.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In the first embodiment, the present invention discloses a vacuum pressure valve for an oil storage tank of a gas station, as shown in fig. 1 to 7, comprising a vacuum pressure valve housing 1, and a disc cap 2 and a fixing sleeve 3 located at the upper and lower sides of the vacuum pressure valve housing 1, wherein the lower end of the fixing sleeve 3 is provided with a connection port 4 connected to the oil storage tank, the vacuum pressure valve housing 1 is internally provided with a fixing bracket 5 and a housing notch 11 adapted to the fixing bracket 5, the housing notch 11 is communicated with the fixing sleeve 3, a pressure adjusting plate 6 capable of sliding up and down is inserted into the fixing bracket 5, the side surface of the fixing bracket 5 is provided with a plurality of uniformly distributed air vents 51, the outer side of the fixing bracket 5 is covered with a first filter screen structure 7 adapted to the fixing bracket 5, the pressure adjusting plate 6 is arranged in a cylindrical structure, the bottom of the pressure adjusting plate 6 is provided with an adjusting groove 61, and an adjusting rod 62 capable of sliding up and down is inserted into the adjusting groove 61, the lower end of the adjusting rod 62 is fixedly connected with an adjusting piston 63, a plurality of adjusting through holes 611 which are uniformly distributed around the adjusting rod 62 are also formed in the adjusting groove 61, and an elastic support 621 matched with the pressure adjusting disk 6 is sleeved on the upper side of the adjusting rod 62;
when the internal pressure of the oil storage tank is overlarge, the internal pressure of the oil storage tank enables the pressure adjusting disc 6 to overcome the gravity and slide upwards, so that the internal pressure of the oil storage tank is discharged from the ventilating notch 51 until the internal pressure of the oil storage tank is insufficient to overcome the gravity of the pressure adjusting disc 6, the pressure adjusting disc 6 moves downwards under the action of the gravity and is pressed on the bottom of the fixed support 5, and the internal pressure of the oil storage tank is kept stable;
when the internal pressure of the oil storage tank is too small, the external air pressure of the oil storage tank prompts the adjusting piston 63 to overcome the elastic force of the elastic support 621 and move downwards, so that the outside of the oil storage tank is communicated with the inside of the oil storage tank, external air enters the inside of the oil storage tank until the external pressure of the oil storage tank is not enough to overcome the elastic force of the elastic support 621, the pressure adjusting disc 6 moves upwards under the action of the elastic force to reset and close the adjusting through hole 611, so that the internal pressure of the oil storage tank is kept stable;
when the internal pressure of the oil storage tank is stable, the pressure adjusting disc 6 moves downwards under the action of gravity and presses the bottom of the fixed support 5, and the pressure adjusting disc 6 moves upwards under the action of elasticity to reset and close the adjusting valve, so that the internal pressure of the oil storage tank is kept stable;
when the internal pressure of the oil storage tank is too high, the pressure adjusting disc 6 overcomes the gravity and slides upwards to discharge the internal pressure of the oil storage tank from the ventilating notch 51, otherwise, the pressure adjusting disc moves downwards and presses the bottom of the fixed support 5 to keep the internal pressure of the oil storage tank stable, when the internal pressure of the oil storage tank is too low, the external air pressure enables the adjusting piston 63 to overcome the elasticity of the elastic support 621 and move downwards to enable the outside of the oil storage tank to be communicated with the inside, the external air enters the inside of the oil storage tank, otherwise, the pressure adjusting disc moves upwards under the action of the elasticity to reset and close the adjusting through hole 611, so that the internal pressure of the oil storage tank is kept stable, the sensitivity is high, the reliability is high, and the internal pressure of the tank is effectively guaranteed to be stable; simultaneously in the in-process that outside air inflow jar or jar interior oil gas flow play, first filter screen structure 7 filters, prevents that external impurity from getting into jar interior quality that influences the finished product oil.
A limiting groove 64 matched with the fixed support 5 is formed in the lower side of the pressure adjusting disc 6, a limiting step 52 and an adjusting sealing ring 53 matched with the pressure adjusting disc 6 are arranged on the fixed support 5, and a sealing groove 54 matched with the adjusting sealing ring 53 is formed in the bottom of the fixed support 5; spacing recess 64 plays limiting displacement, guarantees that pressure adjustment dish 6 can move to the position when receiving the effect of gravity to remove downwards in fixed bolster 5, guarantees jar internal pressure stability, adjusts sealing washer 53 and guarantees the leakproofness of fixed bolster 5 and pressure adjustment dish 6 department, and sealing groove 54 pressfitting of fixed bolster 5 bottom adjusts sealing washer 53, prevents to adjust sealing washer 53 offset and influence sealed effect.
The adjusting piston 63 is further provided with a circular sealing pad 631 matched with the adjusting groove 61, the circular sealing pad 631 is sleeved on the adjusting rod 62, the upper end of the adjusting rod 62 is provided with a limit nut 622 matched with the elastic support 621, the limit nut 622 and the adjusting rod 62 are fixedly connected with each other in a threaded manner, and the elastic support 621 is provided with a compression spring; the circular sealed pad 631 can further improve the leakproofness of adjusting piston 63 and regulation recess 61 department, guarantee pressure adjustment's reliability, circular sealed pad 631 can play the shock attenuation effect when adjusting piston 63 resets simultaneously, reduce the wearing and tearing of adjusting piston 63 and then improve its life, stop nut 622 plays limiting displacement to elastic support 621, stop nut 622 adjusts elastic support 621's extension length simultaneously, and then play the pressure value that control pressure adjustment dish 6 opened, with the jar pressure demand that is suitable for different scenes.
The upper end of the fixed sleeve 3 is fixedly connected with the vacuum pressure valve shell 1 in a bolt mode, the lower end of the fixed sleeve 3 is fixedly connected with the connecting port 4 in a thread mode, a second sealing ring 31 is further arranged at the connecting position of the fixed sleeve 3 and the connecting port 4, a second filter screen structure 8 matched with the connecting port 4 is further inserted into the connecting port 4, a flanging structure 81 is arranged at the upper end of the second filter screen structure 8, and the flanging structure 81 is clamped between the fixed sleeve 3 and the connecting port 4; second sealing washer 31 is used for guaranteeing the leakproofness of fixed sleeve 3 and connection port 4 department, improves the reliability, and second filter screen structure 8 prevents that the foreign matter from passing through in the connection port 4 gets into the jar, guarantees the reliability of product in the oil storage tank, and flange structure 81 is used for fixed second filter screen structure 8, prevents that the second filter screen from taking place not hard up.
A first annular bulge 12 matched with the fixed support 5 is arranged on the bottom of the vacuum pressure valve shell 1, a plurality of limiting fixture blocks 121 are arranged on the first annular bulge 12, the surfaces of the limiting fixture blocks 121 are in arc transition, a plurality of guide bulges 55 matched with the pressure adjusting disc 6 are arranged on the side surface of the fixed support 5, and the guide bulges 55 and the fixed support 5 are arranged in an integrated structure; first annular bulge 12 mutually supports with spacing fixture block 121 and makes the mode installation of fixed bolster 5 detachable fix in vacuum pressure valve casing 1 bottom, is convenient for carry out the dismouting, and direction arch 55 is used for guaranteeing that pressure adjustment dish 6 reciprocates in fixed bolster 5 is stable, guarantees pressure adjustment's precision.
The disc cap 2 is provided with a second annular bulge 21 and a third annular bulge 22 which are matched with the first filter screen structure 7, the second annular bulge 21 is also provided with a plurality of first forced blocks 211 which are uniformly distributed, the disc cap 2 is uniformly distributed with a plurality of supporting plates 23 which are matched with the vacuum pressure valve shell 1, the disc cap 2 and the vacuum pressure valve shell 1 are mutually clamped and connected through a limiting buckle 24 and a limiting clamping groove 13, and the side wall of the vacuum pressure valve shell 1 is also uniformly distributed with a second reinforcing block 14 which is connected with the first annular bulge 12; the protruding 21 of second annular is used for pressfitting first filter screen structure 7, prevents that first filter screen structure 7 from appearing the condition of reciprocating, and the protruding 22 of third annular prevents that first filter screen structure 7 from appearing controlling the skew condition around, and first boss improves the protruding 21 mechanical strength of second annular, and backup pad 23 is used for supporting disc cap 2, and second boss 14 is used for strengthening.
The first filter screen structure 7 and the second filter screen structure 8 are both provided with metal filter screens; set up to the damage that can reduce the filter screen for metal filter screen, guarantee filter effect's stability to prolong first filter screen structure 7 and second filter screen structure 8's life.
The second embodiment is different from the first embodiment in that, as shown in fig. 8, the first screen structure 7 and the second screen structure 8 have the same structure, and the first screen structure 7 includes a filter paper layer 71 and metal screen layers 72 located on inner and outer sides of the filter paper layer 71; the filter paper layer 71 can prevent petroleum in the oil storage tank from overflowing out of the oil storage tank, so that the air quality of the periphery of the oil storage tank is improved, and the fire caused by oil gas in the air of the periphery of the oil storage tank is avoided.
In conclusion, the invention has the following beneficial effects:
1. when the internal pressure of the oil storage tank is too high, the pressure adjusting disc 6 overcomes the gravity and slides upwards to discharge the internal pressure of the oil storage tank from the ventilating notch 51, otherwise, the pressure adjusting disc moves downwards and presses the bottom of the fixed support 5 to keep the internal pressure of the oil storage tank stable, when the internal pressure of the oil storage tank is too low, the external air pressure enables the adjusting piston 63 to overcome the elasticity of the elastic support 621 and move downwards to enable the outside of the oil storage tank to be communicated with the inside, the external air enters the inside of the oil storage tank, otherwise, the pressure adjusting disc moves upwards under the action of the elasticity to reset and close the adjusting through hole 611, so that the internal pressure of the oil storage tank is kept stable, the sensitivity is high, the reliability is high, and the internal pressure of the tank is effectively guaranteed to be stable; meanwhile, in the process that external air flows into the tank or oil gas in the tank flows out, the first filter screen structure 7 filters to prevent external impurities from entering the tank to influence the quality of the finished oil;
2. can further improve the leakproofness of adjusting piston 63 and regulation recess 61 department through circular sealed pad 631, guarantee pressure adjustment's reliability, circular sealed pad 631 can play the shock attenuation effect when adjusting piston 63 resets simultaneously, reduce the wearing and tearing of adjusting piston 63 and then improve its life, stop nut 622 plays limiting displacement to elastic support 621, stop nut 622 adjusts elastic support 621's extension length simultaneously, and then play the pressure value that control pressure adjustment dish 6 opened, with the jar pressure demand that is suitable for different scenes.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the design concept of the present invention should be included in the scope of the present invention.
Claims (8)
1. The utility model provides a filling station is vacuum pressure valve for oil storage tank, including vacuum pressure valve casing (1) and be located disc cap (2) and fixed sleeve (3) of vacuum pressure valve casing (1) upper and lower both sides, fixed sleeve (3) lower extreme is provided with connection port (4) that are connected with the oil storage tank, its characterized in that: the vacuum pressure valve shell (1) is internally provided with a fixed support (5) and a shell notch (11) matched with the fixed support (5), the shell notch (11) is communicated with a fixed sleeve (3), a pressure adjusting disc (6) capable of sliding up and down is arranged in the fixed support (5) in an inserting manner, the side surface of the fixed support (5) is provided with a plurality of air-permeable notches (51) which are uniformly distributed, the outer side of the fixed support (5) is covered with a first filter screen structure (7) matched with the fixed support, the pressure adjusting disc (6) is arranged in a cylindrical structure, the bottom of the pressure adjusting disc (6) is provided with an adjusting groove (61), an adjusting rod (62) which slides up and down is arranged on the adjusting groove (61) in a penetrating manner, the lower end of the adjusting rod (62) is fixedly connected with an adjusting piston (63), and a plurality of adjusting through holes (611) which are uniformly distributed around the adjusting rod (62) are also arranged in the adjusting groove (61), the upper side of the adjusting rod (62) is sleeved with an elastic bracket (621) matched with the pressure adjusting disk (6);
when the internal pressure of the oil storage tank is overlarge, the internal pressure of the oil storage tank enables the pressure adjusting disc (6) to overcome the gravity and slide upwards, so that the internal pressure of the oil storage tank is discharged from the ventilating notch (51) until the internal pressure of the oil storage tank is insufficient to overcome the gravity of the pressure adjusting disc (6), the pressure adjusting disc (6) moves downwards under the action of the gravity and presses the bottom of the fixed support (5), and the internal pressure of the oil storage tank is kept stable; when the internal pressure of the oil storage tank is too small, the external air pressure of the oil storage tank prompts the adjusting piston (63) to overcome the elastic force of the elastic support (621) and move downwards, so that the outside of the oil storage tank is communicated with the inside of the oil storage tank, external air enters the inside of the oil storage tank until the external pressure of the oil storage tank is not enough to overcome the elastic force of the elastic support (621), and the pressure adjusting disc (6) moves upwards under the action of the elastic force to reset and close the adjusting valve, so that the internal pressure of the oil storage tank is kept stable;
when the internal pressure of the oil storage tank is stable, the pressure adjusting disc (6) moves downwards under the action of gravity and presses the bottom of the fixed support (5), and the pressure adjusting disc (6) moves upwards under the action of elasticity to reset and is closed to adjust the pressure, so that the internal pressure of the oil storage tank is kept stable.
2. A vacuum pressure valve for a gasoline station storage tank as claimed in claim 1, wherein: the lower side of the pressure adjusting disc (6) is provided with a limiting groove (64) matched with the fixed support (5), the fixed support (5) is provided with a limiting step (52) matched with the pressure adjusting disc (6) and an adjusting sealing ring (53), and the bottom of the fixed support (5) is provided with a sealing groove (54) matched with the adjusting sealing ring (53).
3. A vacuum pressure valve for a gasoline station storage tank as claimed in claim 2, wherein: the adjusting piston (63) is further provided with a circular sealing gasket (631) matched with the adjusting groove (61), the circular sealing gasket (631) is sleeved on the adjusting rod (62), the upper end of the adjusting rod (62) is provided with a limiting nut (623) matched with the elastic support (621), the limiting nut (622) and the adjusting rod (62) are fixedly connected in a threaded mode, and the elastic support (621) is arranged to be a compression spring.
4. A vacuum pressure valve for a gasoline station storage tank as claimed in claim 3, wherein: the upper end of fixed sleeve (3) pass through the bolt mode with vacuum pressure valve shell (1) mutual fixed connection, the lower extreme of fixed sleeve (3) pass through the screw thread mode with connection port (4) mutual fixed connection, the junction of fixed sleeve (3) and connection port (4) still is provided with second sealing washer (31), still alternates in connection port (4) to be provided with rather than the second filter screen structure (8) of looks adaptation, the upper end of second filter screen structure (8) is provided with turn-ups structure (81), turn-ups structure (81) press from both sides and locate between fixed sleeve (3) and connection port (4).
5. A vacuum pressure valve for a gasoline station storage tank as claimed in claim 4, wherein: the vacuum pressure valve is characterized in that a first annular bulge (12) matched with the fixed support (5) is arranged at the bottom of the vacuum pressure valve shell (1), a plurality of limiting clamping blocks (121) are arranged on the first annular bulge (12), the surfaces of the limiting clamping blocks (121) are in arc transition, a plurality of guide bulges (55) matched with the pressure adjusting disc (6) are arranged on the side surface of the fixed support (5), and the guide bulges (55) and the fixed support (5) are arranged in an integrated structure.
6. A vacuum pressure valve for a gasoline station storage tank as claimed in claim 5, wherein: be provided with on disc cap (2) with second annular arch (21) and third annular arch (22) of first filter screen structure (7) looks adaptation, still be provided with a plurality of evenly distributed's first strong piece (211) on second annular arch (21), evenly distributed on disc cap (2) have a plurality of with backup pad (23) of vacuum pressure valve casing (1) looks adaptation, disc cap (2) and vacuum pressure valve casing (1) are through setting up spacing buckle (24) and spacing draw-in groove (13) block each other connection respectively, still evenly distributed on the lateral wall of vacuum pressure valve casing (1) have with second boss (14) that first annular arch (12) are connected.
7. A vacuum pressure valve for a gasoline station storage tank as claimed in claim 6, wherein: and the first filter screen structure (7) and the second filter screen structure (8) are both set to be metal filter screens.
8. A vacuum pressure valve for a gasoline station storage tank as claimed in claim 6, wherein: the structure of the first filter screen structure (7) is the same as that of the second filter screen structure (8), and the first filter screen structure (7) comprises a filter paper layer (71) and metal filter screen layers (72) positioned on the inner side and the outer side of the filter paper layer (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110833576.6A CN113566003A (en) | 2021-07-13 | 2021-07-13 | Vacuum pressure valve for oil storage tank of gas station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110833576.6A CN113566003A (en) | 2021-07-13 | 2021-07-13 | Vacuum pressure valve for oil storage tank of gas station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113566003A true CN113566003A (en) | 2021-10-29 |
Family
ID=78166507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110833576.6A Pending CN113566003A (en) | 2021-07-13 | 2021-07-13 | Vacuum pressure valve for oil storage tank of gas station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113566003A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1727262A (en) * | 2005-07-28 | 2006-02-01 | 永嘉县三江石油机械厂 | Fireproof pressure vacuum gage cap for oil tank |
| KR100607153B1 (en) * | 2006-04-21 | 2006-08-01 | (주)동명엔터프라이즈 | A cap for controlling pressure and vacuum of oil storage tank |
| CN205841892U (en) * | 2016-08-02 | 2016-12-28 | 徐州德胜石油机械有限公司 | A kind of breather valve |
| CN205855043U (en) * | 2016-08-02 | 2017-01-04 | 徐州德胜石油机械有限公司 | A kind of pressure vacuum gage cap |
| CN112594427A (en) * | 2020-12-21 | 2021-04-02 | 徐州德胜石油机械有限公司 | Oil tank fire-retardant pressure valve that leakproofness is good |
-
2021
- 2021-07-13 CN CN202110833576.6A patent/CN113566003A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1727262A (en) * | 2005-07-28 | 2006-02-01 | 永嘉县三江石油机械厂 | Fireproof pressure vacuum gage cap for oil tank |
| KR100607153B1 (en) * | 2006-04-21 | 2006-08-01 | (주)동명엔터프라이즈 | A cap for controlling pressure and vacuum of oil storage tank |
| CN205841892U (en) * | 2016-08-02 | 2016-12-28 | 徐州德胜石油机械有限公司 | A kind of breather valve |
| CN205855043U (en) * | 2016-08-02 | 2017-01-04 | 徐州德胜石油机械有限公司 | A kind of pressure vacuum gage cap |
| CN112594427A (en) * | 2020-12-21 | 2021-04-02 | 徐州德胜石油机械有限公司 | Oil tank fire-retardant pressure valve that leakproofness is good |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5598902A (en) | Automatic lubricator | |
| CN113566003A (en) | Vacuum pressure valve for oil storage tank of gas station | |
| US6948519B2 (en) | Device for regulating the flow of gas toward user equipment | |
| EP2469370A1 (en) | Service regulator vent | |
| WO2023029760A1 (en) | Filter capable of automatically cutting off airflow | |
| CN210423755U (en) | Vacuum backflow safety valve | |
| CN210978472U (en) | Ventilation cap for speed reducer | |
| CN208951344U (en) | A kind of diaphragm valve | |
| CN209411337U (en) | A kind of powder is unloaded filter device | |
| CN207316166U (en) | A kind of reusable nonflame bleeder | |
| GB2077397A (en) | Vacuum regulator | |
| CN213655836U (en) | Solvent storage pressure adjusting device and automatic pressure relief solvent barrel | |
| CN212804426U (en) | Valve is exhaled to pilot-operated formula | |
| CN219111151U (en) | Negative pressure dust collector | |
| CN109140003A (en) | A kind of miniature pressure regulator valve | |
| CN217482067U (en) | Breather valve sealing mechanism | |
| CN219933119U (en) | Air inlet valve capable of adjusting flow | |
| CN213954466U (en) | CO recycle gas compressor dry gas sealing system in dimethyl oxalate synthesis | |
| CN220396614U (en) | Automatic pressure relief device of solid fermentation tank | |
| CN221196173U (en) | Automatic pressure regulating valve capable of being adjusted bidirectionally | |
| CN212106953U (en) | Filtering and pressure regulating integrated structure | |
| CN215042784U (en) | Two side of hierarchical formula passenger train are with valve of alleviating of airing exhaust | |
| CN216892644U (en) | Negative pressure suppression device for flow stabilizing tank | |
| CN218468337U (en) | Safety valve sealing structure | |
| CN208878517U (en) | A kind of vacuum reaction kettle with air inlet structure of voltage regulation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211029 |