CN212048906U - Oil tank pressure stability control device - Google Patents
Oil tank pressure stability control device Download PDFInfo
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- CN212048906U CN212048906U CN202020427447.8U CN202020427447U CN212048906U CN 212048906 U CN212048906 U CN 212048906U CN 202020427447 U CN202020427447 U CN 202020427447U CN 212048906 U CN212048906 U CN 212048906U
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- stability control
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Abstract
The utility model relates to an oil tank pressure stabilization control device, which comprises an upper cavity, a middle cavity and a lower cavity which are communicated in sequence; the upper cavity is provided with an air outlet; the lower cavity is provided with an air inlet; the side surfaces of the upper cavity and the lower cavity are respectively provided with an openable operation port; a vacuum negative pressure safety valve is detachably arranged in the middle cavity to isolate the upper cavity from the lower cavity, and the vacuum negative pressure safety valve is assembled and disassembled through the upper cavity and an operation port thereof; this oil tank pressure stability control device can effectually play the automatic too high effect of preventing oil tank internal pressure, effectively reduces simultaneously and overhauls the degree of difficulty, improves the convenient degree of surveing and changing.
Description
Technical Field
The utility model relates to an oil storage field especially relates to an oil tank pressure stability control device.
Background
When an underground oil tank of a gas station loads and unloads gasoline, or the external temperature changes, or under other conditions, the pressure in the tank is possibly overlarge, and serious consequences can be caused, so that an air release device is needed, the pressure can be released when the pressure in the tank is overlarge, a vacuum pressure cap is generally installed at the top end of an exhaust pipe on the ground surface in the prior art, the vacuum pressure cap is named as a safety breather valve and is installed at a high position of the top end of the exhaust pipe, when the pressure in the tank exceeds a set pressure, the breather valve is opened to automatically exhaust, and the gaseous oil is prevented from escaping outwards and entering the oil storage tank through an external accidental fire source, so that the underground oil tank has the; however, the vacuum pressure cap needs to be installed at the top end of the exhaust pipe on the ground surface, and the top end of the exhaust pipe is generally higher according to standard requirements, so that the overhauling difficulty and danger of workers are greatly increased.
SUMMERY OF THE UTILITY MODEL
The utility model provides an oil tank pressure stable control device, this oil tank pressure stable control device can effectually play the automatic too high effect of preventing oil tank internal pressure, effectively reduce simultaneously and overhaul the degree of difficulty, improve the convenient degree of surveing and changing.
The technical scheme of the utility model as follows:
the pressure stabilization control device for the oil tank comprises an upper cavity, a middle cavity and a lower cavity which are sequentially communicated; the upper cavity is provided with an air outlet; the lower cavity is provided with an air inlet; the side surfaces of the upper cavity and the lower cavity are respectively provided with an openable operation port; a vacuum negative pressure safety valve is detachably arranged in the middle cavity to isolate the upper cavity from the lower cavity, and the vacuum negative pressure safety valve is assembled and disassembled through the upper cavity and the operation port of the upper cavity.
The oil tank pressure stability control device is characterized in that the oil tank pressure stability control device is integrally a cylinder-like body which is communicated up and down, and the upper cavity, the middle cavity and the lower cavity are sequentially arranged on the cylinder-like body from top to bottom.
The upper cavity and the lower cavity are respectively in a circular truncated cone shape with a circular surface facing to the horizontal direction; the middle cavity is vertically arranged in a cylindrical shape, the upper end of the middle cavity is communicated with the lower end of the upper cavity, and the lower end of the middle cavity is communicated with the upper end of the lower cavity; the air outlet is formed in the upper end of the upper cavity; the air inlet is formed in the lower end of the lower cavity.
And an annular step formed by necking is arranged in the middle cavity to support the vacuum negative pressure safety valve.
A cylindrical frame which is vertical and extends towards the upper cavity body is arranged at the joint of the upper cavity body and the middle cavity body; the cylindrical frame serves to guide and support the vacuum negative pressure relief valve to prevent it from tilting.
Wherein, the operation ports are respectively provided with a cover body which can seal and open and close the operation ports; the cover body is circular, and a transparent glass sheet is embedded on the cover body so as to facilitate observation.
The cover body is rotatably connected with the vertical surface of the similar column body through a shaft hole at the lower part of the cover body; the upper part of the cover body is provided with a duckbilled opening; the duckbilled opening rotates to rotate along with the cover body to the upper end to bite into a bolt, and the cover body is detachably locked on the cylinder-like body through the bolt.
Wherein, the gas outlet and the gas inlet are respectively provided with an upper connecting flange and a lower connecting flange.
The vacuum negative pressure safety valve is a dead weight type safety valve and comprises a cylindrical valve barrel and a valve core matched with the valve barrel; the valve cylinder is vertically and hermetically inserted in the middle cavity; the valve core is sleeved in the valve barrel in a vertically sliding manner and seals the lower end opening of the valve barrel under the action of self gravity.
Wherein, the upper end surface of the annular step is provided with an annular groove; an annular sealing rubber gasket is embedded in the annular groove; the bottom end of the valve cylinder is embedded into the annular groove and is tightly extruded with the annular sealing rubber gasket to form sealing.
The utility model discloses following beneficial effect has:
1. this oil tank pressure stability control device can effectually play the automatic effect that prevents the too high pressure in the oil tank, need not to install at the blast pipe top, effectively reduces the maintenance degree of difficulty, improves the convenient degree of surveing and changing.
2. The utility model is provided with an upper cavity, a middle cavity and a lower cavity, and the device has the functions of independently placing, observing and replacing the valve body and the drying agent by the way of separating the functions in space, thereby greatly reducing the difficulty of detection, maintenance and replacement; secondly, only need regularly or as required change valve body and drier under the long-time condition of using can, life prolongs greatly, and this process is very convenient, swift, has effectively reduced the maintenance cost.
3. The utility model discloses a lid adopts the mode of rotating connection cooperation duckbilled opening interlock bolt, and is sealed effectual, stable in structure, and it is very convenient that its switching when needing.
4. The utility model discloses an intermediate chamber adopts cylindricly, and the cavity extends the cylindrical framework that makes progress, and in it integrated into one piece when the shaping has the annular step of necking down, and the step up end sets up annular recess, disposes seal gasket in the recess, and the cooperation valve section of thick bamboo can be very convenient realization effectively install, and the installation degree of difficulty is low, and is sealed effectual, and the station is stable, has reduced the degree of difficulty of effective installation.
5. The utility model discloses the last cavity that sets up and the structure of operation mouth can be convenient dismantlement and reinstallate the valve body, and the dismantlement is extremely low with the installation degree of difficulty.
6. The utility model discloses an go up cavity and cavity down and can also be used for preparing the expansion function, for example place fire prevention separation material, drier, go static material etc. need not to increase or change the device when having corresponding demand.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is a schematic front sectional view of the present invention;
FIG. 4 is a schematic side view of the present invention;
fig. 5 is a schematic side cross-sectional view of the present invention;
fig. 6 is a schematic view of the vacuum negative pressure safety valve of the present invention.
The reference numbers in the figures denote:
1-upper cavity, 11-air outlet, 13-operation port, 14-cover body, 141-axle hole, 142-opening, 15-upper connecting flange, 16-lower connecting flange, 2-lower cavity, 21-air inlet, 3-middle cavity, 31-annular step, 311-annular groove, 312-annular sealing rubber gasket, 32-cylindrical frame, 4-vacuum negative pressure safety valve, 41-valve cylinder and 42-valve core.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 6, an oil tank pressure stabilization control device includes an upper cavity 1, a middle cavity 3 and a lower cavity 2 which are sequentially communicated; the upper cavity 1 is provided with an air outlet 11; the lower cavity 2 is provided with an air inlet 21; the side surfaces of the upper cavity 1 and the lower cavity 2 are respectively provided with an openable operation port 13; a vacuum negative pressure safety valve 4 is detachably arranged in the middle cavity 3 to isolate the upper cavity 1 from the lower cavity 2, and the vacuum negative pressure safety valve 4 is assembled and disassembled through the upper cavity 1 and an operation opening 13 thereof.
Further, the oil tank pressure stabilization control device is integrally a column-like body which is through from top to bottom, and the upper cavity 1, the middle cavity 3 and the lower cavity 2 are sequentially arranged on the column-like body from top to bottom.
Further, the upper cavity 1 and the lower cavity 2 are respectively in a truncated cone shape with a circular surface facing to the horizontal direction; the middle cavity 3 is vertically arranged in a cylindrical shape, the upper end of the middle cavity is communicated with the lower end of the upper cavity 1, and the lower end of the middle cavity is communicated with the upper end of the lower cavity 2; the air outlet 11 is formed in the upper end of the upper cavity 1; the air inlet 21 is arranged at the lower end of the lower cavity 2.
Further, an annular step 31 formed by necking is arranged in the middle cavity 3 to support the vacuum negative pressure safety valve 4.
Further, a cylindrical frame 32 which is vertical and extends towards the upper cavity 1 is arranged at the joint of the upper cavity 1 and the middle cavity 3; the cylindrical frame 32 serves to guide and support the vacuum negative pressure relief valve 4 to prevent it from tilting.
Further, the operation ports 13 are respectively provided with cover bodies 14 for sealing and opening the operation ports 13; the cover 14 is circular and has a transparent glass sheet embedded thereon for viewing.
Further, the cover body 14 is rotatably connected with the column-like vertical surface through a shaft hole 141 at the lower part thereof; a duckbill-shaped opening 142 is formed in the upper part of the cover body 14; the duckbill opening 142 rotates with the cover 14 to engage a bolt at the upper end, through which the cover 14 is detachably locked to the cylinder-like body.
Further, the outlet port 11 and the inlet port 21 are externally provided with an upper connecting flange 15 and a lower connecting flange 16, respectively.
Further, the vacuum negative pressure safety valve 4 is a dead weight type safety valve, and comprises a cylindrical valve cylinder 41 and a valve core 42 matched with the valve cylinder 41; the valve cylinder 41 is vertically and hermetically inserted in the middle cavity 3; the valve core 42 is sleeved in the valve cylinder 41 in a sliding manner up and down and closes the lower end opening of the valve cylinder 41 under the action of self gravity.
Further, an annular groove 311 is formed in the upper end surface of the annular step 31; an annular sealing rubber pad 312 is embedded in the annular groove 311; the bottom end of the valve cylinder 41 is embedded into the annular groove 311 and tightly pressed with the annular sealing rubber gasket 312 to form a seal.
The vacuum negative pressure safety valve can be integrally cast except for the vacuum negative pressure safety valve, and can effectively realize batch production and standardization; the lower cavity can also be used for preparing and expanding functions, such as placing fireproof barrier materials, drying agents, static electricity removing materials and the like, and the whole device does not need to be added or replaced when corresponding requirements exist.
The utility model discloses a theory of operation:
when the pressure in the oil tank is too high, the gas overcomes the weight of the valve core 42, the valve core 42 is jacked upwards to form a channel communicated with the outside, the gas is discharged outwards, the pressure in the tank is too high, and when the pressure in the tank is reduced to a threshold value, the valve core 42 automatically falls down under the action of gravity to close the channel again.
When the valve core 42 or the valve cylinder 41 needs to be replaced, the bolt tightly hooped with the duckbill-shaped opening 142 is loosened, the cover body 14 is rotated to leak the operation opening 13, and the valve cylinder 41 or the valve core 42 can be taken out manually for repair or replacement.
In the same way, the desiccant and/or fire retardant in the lower cavity 2 can be easily replaced; when the drying agent and the fire retardant are used, the drying agent and the fire retardant can be packaged in bags or boxes to prevent the drying agent and the fire retardant from falling into the air inlet 21, a blocking net can be prevented at the air inlet 21, and the drying agent or the fire retardant can be easily prevented from falling into the air inlet because the space and the cross section area of the lower cavity 2 are larger than those of the air inlet 21.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. An oil tank pressure stabilization control device is characterized in that: comprises an upper cavity (1), a middle cavity (3) and a lower cavity (2) which are communicated in sequence; an air outlet (11) is formed in the upper cavity (1); an air inlet (21) is formed in the lower cavity (2); the side surfaces of the upper cavity (1) and the lower cavity (2) are respectively provided with an openable operation port (13); a vacuum negative pressure safety valve (4) is detachably arranged in the middle cavity (3) to isolate the upper cavity (1) from the lower cavity (2), and the vacuum negative pressure safety valve (4) is assembled and disassembled through the upper cavity (1) and an operation opening (13) of the upper cavity.
2. A tank pressure stability control device as claimed in claim 1, wherein: the oil tank pressure stability control device is integrally a cylinder-like body which is communicated up and down, and the upper cavity (1), the middle cavity (3) and the lower cavity (2) are arranged on the cylinder-like body from top to bottom in sequence.
3. A tank pressure stability control device as claimed in claim 2, wherein: the upper cavity (1) and the lower cavity (2) are respectively in a circular truncated cone shape with a circular surface facing to the horizontal direction; the middle cavity (3) is vertically arranged in a cylindrical shape, the upper end of the middle cavity is communicated with the lower end of the upper cavity (1), and the lower end of the middle cavity is communicated with the upper end of the lower cavity (2); the air outlet (11) is formed in the upper end of the upper cavity (1); the air inlet (21) is formed in the lower end of the lower cavity (2).
4. A tank pressure stability control device as claimed in claim 3, wherein: an annular step (31) formed by necking is arranged in the middle cavity (3) to support the vacuum negative pressure safety valve (4).
5. A tank pressure stability control device as claimed in claim 4, wherein: a cylindrical frame (32) which is vertical and extends towards the upper cavity (1) is arranged at the joint of the upper cavity (1) and the middle cavity (3); the cylindrical frame (32) serves to guide and support the vacuum negative pressure relief valve (4) to prevent it from tilting.
6. A tank pressure stability control device as claimed in claim 5, wherein: the vacuum negative pressure safety valve (4) is a dead weight type safety valve and comprises a cylindrical valve cylinder (41) and a valve core (42) matched with the valve cylinder (41); the valve cylinder (41) is vertically and hermetically inserted in the middle cavity (3); the valve core (42) is sleeved in the valve cylinder (41) in a vertically sliding manner and seals the lower end opening of the valve cylinder (41) under the action of self gravity.
7. A tank pressure stability control device as claimed in claim 6, wherein: an annular groove (311) is formed in the upper end face of the annular step (31); an annular sealing rubber gasket (312) is embedded in the annular groove (311); the bottom end of the valve cylinder (41) is embedded into the annular groove (311) and tightly extruded with the annular sealing rubber gasket (312) to form sealing.
8. A tank pressure stability control apparatus as claimed in any one of claims 2 to 7, wherein: the operation ports (13) are respectively provided with a cover body (14) capable of sealing and opening the operation ports (13); the cover body (14) is embedded with a transparent glass sheet for observation.
9. A tank pressure stability control device as claimed in claim 8, wherein: the cover body (14) is rotationally connected with the vertical surface of the similar column body through a shaft hole (141) at the lower part of the cover body; the upper part of the cover body (14) is provided with a duckbill-shaped opening (142); the duckbilled opening (142) rotates to rotate along with the cover body (14) to the upper end to bite a bolt, and the cover body (14) is detachably locked on the cylinder-like body through the bolt.
10. A tank pressure stability control apparatus as claimed in any one of claims 1 to 7, wherein: and an upper connecting flange (15) and a lower connecting flange (16) are respectively arranged outside the air outlet (11) and the air inlet (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020427447.8U CN212048906U (en) | 2020-03-30 | 2020-03-30 | Oil tank pressure stability control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020427447.8U CN212048906U (en) | 2020-03-30 | 2020-03-30 | Oil tank pressure stability control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212048906U true CN212048906U (en) | 2020-12-01 |
Family
ID=73539318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020427447.8U Active CN212048906U (en) | 2020-03-30 | 2020-03-30 | Oil tank pressure stability control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212048906U (en) |
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2020
- 2020-03-30 CN CN202020427447.8U patent/CN212048906U/en active Active
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