CN207569228U - A kind of oil storage tank negative pressure valve - Google Patents
A kind of oil storage tank negative pressure valve Download PDFInfo
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- CN207569228U CN207569228U CN201721484064.9U CN201721484064U CN207569228U CN 207569228 U CN207569228 U CN 207569228U CN 201721484064 U CN201721484064 U CN 201721484064U CN 207569228 U CN207569228 U CN 207569228U
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- valve
- negative pressure
- end socket
- plane end
- elastic component
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Abstract
The utility model discloses a kind of oil storage tank negative pressure valves, belong to field of chemical equipment.The negative pressure valve includes：The negative pressure valve includes：Valve body, valve rod, flap, locating part, elastic component.The upper end opening of valve body, lower end is provided with plane end socket, and is provided with air passing hole.Valve rod can be arranged in valve body up or down, and lower end passes through plane end socket；Flap is connect with the lower end of the valve rod outside valve body；Locating part is fixedly set on valve rod；Elastic component is set between locating part and plane end socket.When elastic component is in diastole state, flap forms in sealing contact with plane end socket；When elastic component is in compressive state, flap is contacted with plane end socket depressurization.The negative pressure valve is simple in structure, and cost is relatively low, and is hardly damaged.
Description
Technical field
The utility model is related to field of chemical equipment, more particularly to a kind of oil storage tank negative pressure valve.
Background technology
In oil extraction in oil field technique, there is breathings during normal use for oil storage tank, for example, by oil storage tank
When interior crude oil carries out outer defeated, need that air is made smoothly to enter in oil storage tank, to balance its interior air pressure, otherwise, oil storage tank will be caused
By take out it is flat, deformation the problem of, and then cause safety accident.
In order to solve the above-mentioned technical problem, the prior art is breathed oil storage tank using oil tank mechanical breather valve, should
Oil storage tank includes valve deck, air exhalation suction inlet, valve body and exhalation of tank pipeline connecting flange, top end of the valve body and is equipped with valve deck, valve
Body side upper end is fixedly connected with air exhalation suction inlet, and valve body bottom end is fixedly connected with exhalation of tank pipeline connecting flange, valve
Internal storehouse upper end is fixedly connected with overhead gage, is fixedly connected with valve disk holder among storehouse in valve body, valve body Nei Cang lower ends, which are fixed, to be connected
Lower baffle plate is connected to, overhead gage side is fixedly connected with positive pressure regulating device, and positive pressure regulating device top, which is equipped with, is adjusting exhalation amount just
Screw is pressed, positive pressure regulating device lower end is connected with positive pressure valve disc, and overhead gage center is fixedly connected with control tank valves
Device, control exhalation of tank valve gear upper end are fixedly connected with regulation gate valve, and control exhalation of tank valve gear top is fixedly connected
Have and measure control valve connector, measure and portable instrumentation connection flexible pipe is fixedly connected at control valve connector, control oil
Tank breather valve device lower end, which is equipped with, measures blow vent, and control tank valves the bottom of the device central movable is connected with gate valve, upper gear
Plate side is fixedly connected with negative pressure adjusting device, and negative pressure adjusting device top, which is equipped with, adjusts soakage negative pressure screw, and negative pressure is adjusted
Device middle is connected with negative pressure valve disc, and exhalation of tank pipeline connecting flange center is equipped with exhalation of tank connector.
Designer has found that the prior art has at least the following problems：
The mechanical breather valve that the prior art provides is complicated, and cost is higher, and becomes by a relatively large margin in outside climatic generation
During change, once one of component is damaged, the breather valve will be caused to be unable to normal operation.
Utility model content
The utility model embodiment provides a kind of oil storage tank negative pressure valve, can solve above-mentioned technical problem.Particular technique
Scheme is as follows：
A kind of oil storage tank negative pressure valve, the negative pressure valve include：Valve body, the upper end opening of the valve body, lower end is provided with
Plane end socket, and, it is provided with air passing hole on the plane end socket；
Valve rod can be up or down arranged in the valve body, and lower end passes through the plane end socket；
Flap is connect with the lower end of the valve rod outside the valve body；
Locating part is fixedly set on the valve rod；
Elastic component is set between the locating part and the plane end socket；
When the elastic component is in diastole state, the flap forms in sealing contact with the plane end socket；
When the elastic component is in compressive state, the flap is contacted with the plane end socket depressurization.
In a kind of possible design, the plane end socket is arranged to cross-bar；
The inner wall cooperation of the cross-bar and the valve body forms four air passing holes；
The rod aperture for passing through the valve rod is additionally provided in the middle part of the cross-bar.
In a kind of possible design, the cross-bar is fixed by welding on the lower end inner wall of the valve body.
In a kind of possible design, the plane end socket is arranged to and the plate body being adapted wide in the valve body；
Multiple air passing holes are provided in the plate face of the plate body；
The rod aperture for passing through the valve rod is additionally provided in the middle part of the plate body.
In a kind of possible design, the plate body is connected through a screw thread on the lower end inner wall for being fixed on the valve body.
In a kind of possible design, the elastic component is arranged to a spring, and the spring pocket is mounted on the valve rod,
And between the locating part and the plane end socket.
In a kind of possible design, the elastic component is arranged to multiple elastomers, and the elastomer is along the circumferential direction equal
It is even to be set between the locating part and the plane end socket, and, the upper end of multiple elastomers is connect with the locating part.
In a kind of possible design, the locating part includes：The tune that limiting plate, lower end are connect with the limiting plate upper end
Save nut；
The via for passing through the valve rod is provided on the limiting plate；
The adjusting nut is threadedly coupled mode and is sleeved on the valve rod.
In a kind of possible design, the flap on the contact surface of the plane end socket with being both provided with elastic layer.
The advantageous effect brought of technical solution that the utility model embodiment provides is：
The negative pressure valve that the utility model embodiment provides, by setting the flap that can be together moved up and down with valve rod,
In oil storage tank under pressure control, adaptively composition to be coordinated to seal or release close with being set to the plane end socket of valve body lower end
Envelope to realize closing or opening for the negative pressure valve, to adjust the air pressure in oil storage tank, realizes breathing.It is limited in by setting
Elastic component between position part and plane end socket, after oil storage tank inner and outer air pressure reaches balance, to drive flap and plane end socket structure
Into in sealing contact, being automatically closed for the negative pressure valve is realized.The negative pressure valve is simple in structure, and cost is relatively low.Also, due to its contained portion
Part is less, and the connection such as upper type is carried out between all parts, even if when outside climatic generation changes by a relatively large margin, it is also difficult to
It is damaged.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structure diagram for the negative pressure valve that the utility model embodiment provides；
Fig. 2 is the first kind structure diagram for the plane end socket that the utility model embodiment provides；
Fig. 3 is the second class formation schematic diagram of the plane end socket that the utility model embodiment provides.
Reference numeral represents respectively：
1- valve bodies, 11- plane end sockets, 111- air passing holes, 112- rod aperture,
2- valve rods,
3- flaps,
4- locating parts, 41- limiting plates, 42- adjusting nuts,
5- elastic components.
Specific embodiment
Unless otherwise defined, all technical terms used in the utility model embodiment are respectively provided with and those skilled in the art
Normally understood identical meaning.To make the purpose of this utility model, technical solution and advantage clearer, below in conjunction with attached
Figure is described in further detail the utility model embodiment.
The utility model embodiment provides a kind of oil storage tank negative pressure valve, and as shown in Figure 1, which includes：Valve
Body 1, valve rod 2, flap 3, locating part 4, elastic component 5.
Wherein, the upper end opening of valve body 1, lower end are provided with plane end socket 11, and, as shown in attached drawing 2 or attached drawing 3, plane
Air passing hole 111 is provided on end socket 11.
Valve rod 2 can be up or down arranged in valve body 1, and lower end passes through plane end socket 11；
Flap 3 is connect with the lower end of the valve rod 2 outside valve body 1；
Locating part 4 is fixedly set on valve rod 2；
Elastic component 5 is set between locating part 4 and plane end socket 11.
When elastic component 5 is in diastole state, flap 3 forms in sealing contact with plane end socket 11；
When elastic component 5 is in compressive state, flap 3 is contacted with 11 depressurization of plane end socket.
The operation principle of the negative pressure valve provided below with regard to the utility model embodiment, which is given, to be illustrated：
In application, valve body 1 to be mounted on to the top of oil storage tank, the plane end socket 11 of its lower end is made to be located inside oil storage tank,
Rest part is located at oil storage tank outside.When crude oil carries out outer defeated by oil storage tank, if negative pressure is formed inside oil storage tank,
The negative pressure will attract downwards flap 3, it is made to be contacted with 11 depressurization of plane end socket, at this point, negative pressure valve is in opening state, outside
Boundary's air is entered by the air passing hole 111 on plane end socket 11 in oil storage tank, to compensate its air pressure inside, makes gas inside oil storage tank
Pressure keeps balancing with ambient pressure.After flap 3, which is moved downwardly to, to be contacted with 11 depressurization of plane end socket, locating part 4 will be with
It valve rod 2 and flap 3 moves downward together, compression elastic piece 5.And after oil storage tank inside and outside air pressure balance, elastic component 5 will restore
To diastole state (i.e. not by the home state of external force), locating part 4 to be driven to move upwards, and then together with ovable valve stem 2 and valve
Valve 3 moves upwards, make to form again between flap 3 and plane end socket 11 it is in sealing contact, at this point, negative pressure valve is closed.
As it can be seen that the negative pressure valve that the utility model embodiment provides, by setting the valve that can be together moved up and down with valve rod 2
Valve 3, in oil storage tank under pressure control, adaptively to coordinate composition sealing with being set to the plane end socket 11 of 1 lower end of valve body
Or depressurization, to realize closing or opening for the negative pressure valve, to adjust the air pressure in oil storage tank, realize breathing.By setting
The elastic component 5 being limited between locating part 4 and plane end socket 11 is put, after oil storage tank inner and outer air pressure reaches balance, to drive valve
Valve 3 forms in sealing contact with plane end socket 11, realizes being automatically closed for the negative pressure valve.The negative pressure valve is simple in structure, and cost is relatively low.
The connection such as upper type is carried out also, since its contained component is less, between all parts, even if occurring in outside climatic larger
When amplitude changes, it is also difficult to be damaged.
Each component in the negative pressure valve and its effect are given illustrate respectively below：
For valve body 1, as supporter, to be fixed at the top of oil storage tank, while by valve rod 2, locating part 4, bullet
Property part 5 accommodates in the inner.In the utility model embodiment, by the way that the upper end of valve body 1 is arranged to hatch frame, in order to right
Its internal all parts set is safeguarded.
For valve rod 2, it is used for that flap 3, locating part 4, the cooperation of elastic component 5 is made to form connection.It is integrally located at valve
Inside body 1, and, lower end is extend out to after passing through plane end socket 11 outside valve body 1, to be connect with flap 3, with by driving flap 3
It moves up and down, flap 3 is made to abut or release with plane end socket 11 and is contacted.
For flap 3, structure will be at least adapted with the bottom of valve body 1, meanwhile, it will also be with plane end socket 11
Lower face is in sealing contact, to ensure when it is in sealing contact with plane end socket 11, partition oil storage tank and extraneous connection.
For example, when the bottom of valve body 1 is arranged to annular shape, the flap 3 is it is also preferred that be arranged to matched
It is disk-shaped.
Due to leakproofness when being contacted between plane end socket 11 and flap 3 for the negative pressure valve whether can normal operation have
Important meaning, so, in the utility model embodiment, make the contact surface of plane end socket 11 and flap 3 be all provided with being set to it is smooth
Plane.
It, can also be in the in sealing contact of flap 3 and plane end socket 11 in order to both further improve leakproofness during contact
Elastic layer is both provided on face.By setting elastic layer, play the role of sealing element, when flap 3 and 11 phase of plane end socket
When abutting tactile, minim gap between the two can be effectively sealed, further ensures that sealing is effectively reliable.
It is understood that the utility model embodiment sets air passing hole 111 on plane end socket 11, with flap 3 with
After the contact of its depressurization, outside air can be entered by air passing hole 111 inside oil storage tank.Based on this, once as where plane
Air passing hole 111 is set to provide example on end socket 11：
As the first example, as shown in Figure 2, plane end socket 11 can be arranged to cross-bar；
The inner wall cooperation of cross-bar and valve body 1 forms four air passing holes 111；
The rod aperture 112 for passing through valve rod 2 is additionally provided in the middle part of cross-bar.
By the way that plane end socket 11 is arranged to cross-bar, on the one hand, be capable of providing higher volume of air passing hole 111, it is ensured that
Thus outside air is quickly entered in oil storage tank, on the other hand, the body of rod is realized as the sealing element in sealing contact with flap 3
Its sealing function.
By setting rod aperture 112 at the middle part of cross-bar, pass through valve rod 2, to ensure that valve rod 2 can up and down be transported by wherein
It is dynamic.It is understood that the internal diameter of rod aperture 112 can be slightly larger than the diameter of valve rod 2, so that the movement of valve rod 2 is more smooth.
Cross-bar can be arranged to based on plane end socket 11, can cross-bar be fixed on by valve body 1 by welding manner
On lower end inner wall.
As another example, as shown in Figure 3, plane end socket 11 can be made to be arranged to what is be adapted with exterior feature in valve body 1
Plate body；
Multiple air passing holes 111 are provided in the plate face of plate body；
The rod aperture 112 for passing through valve rod 2 is additionally provided in the middle part of plate body.
By by plane end socket 11 be arranged to the plate body being adapted wide in valve body 1, is connect conducive to it is increased with the sealing of flap 3
Area when touching improves leakproofness.Meanwhile multiple air passing holes 111 are set in its plate face, to ensure thus ambient atmos enter
In oil storage tank.
Wherein, multiple air passing holes 111 are preferably arranged on plane end socket 11 in a symmetrical manner.Also, implement in this kind
Under mode, air passing hole 111 can be arranged to round hole bar hole either as shown in Figure 3 or other geometries
Hole.
It is consistent with the above-mentioned purpose in the middle part of cross-bar setting rod aperture 112 by setting rod aperture 112 on plate body,
This is repeated no more.
Based on plane end socket 11 is arranged to plate body shape, at this point it is possible to which be connected through a screw thread mode is fixed on valve by plate body
On the lower end inner wall of body 1, under the premise of installation fastening is ensured, to improve convenience during installation.
About the setting of elastic component 5, two kinds of examples are given below：
As a kind of example, as shown in Figure 1, elastic component 5 can be made to be arranged to a spring, spring pocket is mounted in valve rod 2
On, and between locating part 4 and plane end socket 11.In this way, can elastic component be realized by the pushing of locating part 4 or upper in-migration
5 compression or diastole, also, also can ensure that the elastic force that elastic component 5 is formed is more uniform.
As another example, elastic component 5 can be arranged to multiple elastomers, elastomer is along the circumferential direction uniformly arranged
Between locating part 4 and plane end socket 11, and, the upper end of multiple elastomers is connect with locating part 4.
By the multiple elastomers for being arranged to be distributed uniformly and circumferentially by elastic component 5, can also reach such as above-mentioned setting
Into the same effect of scheme described in a spring.Also, under this kind of embodiment, the bullet that is formed in order to ensure elastic component 5
Property power is more uniform, and the upper end of multiple elastomers can be made to be connect with locating part 4.
When the upper end of multiple elastomers is connect with locating part 4, at this point it is possible to which locating part 4 is made to be arranged to have and elasticity
The round plate face of body connection.
It will be appreciated by persons skilled in the art that in the utility model embodiment, the elastic force of elastic component 5 needs
Suitable for specific oil storage tank, also, when being formed with negative pressure in oil storage tank, which must can be compressed, and work as oil storage
When tank external and internal pressure reaches balance, 5 energy diastole of elastic component to original position.
The elastic component 5 of different elastic forces is replaced for the ease of the oil storage tank according to specific standard, one kind is given below
Example：
As shown in Figure 1, which includes：The adjusting nut of limiting plate 41, lower end and the connection of 41 upper end of limiting plate
42；
The via for passing through valve rod 2 is provided on limiting plate 41；
Adjusting nut 42 is threadedly coupled mode and is sleeved on valve rod 2.
On the one hand, by setting limiting plate 41, to be in direct contact with elastic component 5, the uniform pressure to elastic component 5 is realized.
On the other hand, by setting adjusting nut 42, and valve rod 2 is arranged to matched screw shaped, can be adjusted by screwing
Nut 42 is saved, carrys out compression elastic piece 5, to realize the purpose being adjusted to its elastic force.
Certainly, it by the way that locating part 4 is set as above, has been also convenient for being dismantled on valve rod 2, to replace different elastic forces
Elastic component 5.
It can be seen from the above, the elastic force based on elastic component 5 is adjustable, the negative pressure valve that the utility model embodiment provides is not only
Suitable for the oil storage tank of small volume, the larger oil storage tank of volume is also applied for, there is stronger adaptability.
The above is only the preferred embodiment of the present invention, the protection domain being not intended to limit the utility model,
Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should be included in this reality
Within novel protection domain.
Claims (9)
1. a kind of oil storage tank negative pressure valve, which is characterized in that the negative pressure valve includes：Valve body (1), the upper end of the valve body (1)
Opening, lower end are provided with plane end socket (11), and, it is provided with air passing hole (111) on the plane end socket (11)；
Valve rod (2) can be arranged on up or down in the valve body (1), and lower end passes through the plane end socket (11)；
Flap (3) is connect with positioned at the lower end of the external valve rod (2) of the valve body (1)；
Locating part (4) is fixedly set on the valve rod (2)；
Elastic component (5) is set between the locating part (4) and the plane end socket (11)；
When the elastic component (5) is in diastole state, the flap (3) forms in sealing contact with the plane end socket (11)；
When the elastic component (5) is in compressive state, the flap (3) contacts with plane end socket (11) depressurization.
2. negative pressure valve according to claim 1, which is characterized in that the plane end socket (11) is arranged to cross-bar；
The inner wall cooperation of the cross-bar and the valve body (1) forms four air passing holes (111)；
The rod aperture (112) for passing through the valve rod (2) is additionally provided in the middle part of the cross-bar.
3. negative pressure valve according to claim 2, which is characterized in that the cross-bar is fixed by welding in the valve body
(1) on lower end inner wall.
4. negative pressure valve according to claim 1, which is characterized in that the plane end socket (11) is arranged to and the valve body
(1) the wide plate body being adapted in；
Multiple air passing holes (111) are provided in the plate face of the plate body；
The rod aperture (112) for passing through the valve rod (2) is additionally provided in the middle part of the plate body.
5. negative pressure valve according to claim 4, which is characterized in that the plate body, which is connected through a screw thread, is fixed on the valve body
(1) on lower end inner wall.
6. negative pressure valve according to claim 1, which is characterized in that the elastic component (5) is arranged to a spring, the bullet
Spring is sleeved on the valve rod (2), and between the locating part (4) and the plane end socket (11).
7. negative pressure valve according to claim 1, which is characterized in that the elastic component (5) is arranged to multiple elastomers, described
Elastomer is along the circumferential direction uniformly arranged between the locating part (4) and the plane end socket (11), and, multiple elasticity
The upper end of body is connect with the locating part (4).
8. negative pressure valve according to claim 1, which is characterized in that the locating part (4) includes：Limiting plate (41), lower end
The adjusting nut (42) being connect with the limiting plate (41) upper end；
It is provided on the limiting plate (41) for across the via of the valve rod (2)；
Adjusting nut (42) mode of being threadedly coupled is sleeved on the valve rod (2).
9. negative pressure valve according to claim 1, which is characterized in that the flap (3) connects with plane end socket (11)
Elastic layer is both provided in contacting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721484064.9U CN207569228U (en) | 2017-11-09 | 2017-11-09 | A kind of oil storage tank negative pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721484064.9U CN207569228U (en) | 2017-11-09 | 2017-11-09 | A kind of oil storage tank negative pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207569228U true CN207569228U (en) | 2018-07-03 |
Family
ID=62694146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721484064.9U Active CN207569228U (en) | 2017-11-09 | 2017-11-09 | A kind of oil storage tank negative pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207569228U (en) |
-
2017
- 2017-11-09 CN CN201721484064.9U patent/CN207569228U/en active Active
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