CN209054135U - It is a kind of to be mounted on pipeline middle part and easy to operate pressure vacuum valve - Google Patents
It is a kind of to be mounted on pipeline middle part and easy to operate pressure vacuum valve Download PDFInfo
- Publication number
- CN209054135U CN209054135U CN201821842486.3U CN201821842486U CN209054135U CN 209054135 U CN209054135 U CN 209054135U CN 201821842486 U CN201821842486 U CN 201821842486U CN 209054135 U CN209054135 U CN 209054135U
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- valve body
- pressure vacuum
- air inlet
- vacuum valve
- airflow channel
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Abstract
The utility model discloses a kind of be mounted in the middle part of pipeline and easy to operate pressure vacuum valve, including valve body, the air inlet flange and gas outlet flange that are installed on valve body, and it is installed in the intracorporal core assembly of valve, valve body is equipped with one for detecting the detection mouth and an access hole convenient for the intracorporal core assembly of valve is overhauled or replaced that it is its no normal work, access hole is realized by end cap and is blocked, when needing to overhaul or replacing core assembly, end cap need to be only opened.Pressure vacuum valve described in the utility model can be mounted on the middle part of oil tank delivery pipe by flange and facilitate the position of operation, while detection mouth and access hole being arranged on valve body, maintain easily personnel and it is detected and/or is overhauled.
Description
Technical field
The utility model relates to a kind of vacuum valves, are mounted on pressure in the middle part of pipeline and easy to operate more particularly, to a kind of
Vacuum valve.
Background technique
Currently, oil tank delivery pipe is used for the gas discharge gas in oil tank or is passed through gas to oil in gasoline retail business
In tank, a pressure vacuum valve is installed to adjust the pressure in oil storage tank in top, avoids oil and gas loss excessive, pollutes environment.Root
According to national standard, the height of existing oil tank delivery pipe is usually above 4 meters, therefore, so that the installation site of pressure vacuum valve is also high
In 4 meters, and oil tank delivery pipe is threadedly mounted on the top of oil tank delivery pipe.When maintenance personal repairs it
When, it needs using auxiliary tool, such as ladder, it is screwed down from oil tank delivery pipe, on the one hand such mode causes to repair
Person works' amount is big, if another aspect maintenance personal ignores, pressure vacuum valve is in running order, and be easy to causeing can not estimate
Danger.
Utility model content
The purpose of the utility model is to overcome the defects of the prior art, provide one kind and are mounted on pipeline middle part and operation side
Just pressure vacuum valve can be detected and/or be overhauled to it without being dismantled.
To achieve the above object, the utility model proposes following technical solutions: one kind is mounted in the middle part of pipeline and operation side
Just pressure vacuum valve, including valve body, core assembly, air inlet flange and gas outlet flange, the valve body include air inlet, go out
Port takes shape in the intracorporal spool chamber of valve, takes shape in valve body and the first air-flow of the connection air inlet and the spool chamber
Channel and the second airflow channel for taking shape in valve body and being connected to the gas outlet and the spool chamber, the air inlet flange dress
At the air inlet of the valve body, the gas outlet flange is installed at the gas outlet of the valve body, and the core assembly is set
In in the spool chamber, it is connected to for controlling first airflow channel with second airflow channel, is also set on the valve body
There is the detection mouth being connected with first airflow channel.
Preferably, the separation for spool chamber to be divided into the first accommodating chamber and the second accommodating chamber is equipped in the spool chamber
Plate, the demarcation plate are equipped with the first venthole for making the first accommodating chamber be connected with the second accommodating chamber.
Preferably, the core assembly includes piston piece and keeps out component, and the piston piece is described for blocking with one
The end of first venthole, the end of the piston piece are equipped with several second ventholes, it is described keep out component be installed in it is described
On piston piece and block second venthole.
Preferably, the component of keeping out includes connector, locating part, abutment and the first elastic component, and the connector is set
In the end in the piston piece and through the piston piece, and traversing through end is equipped with for blocking keeping out for second venthole
Part opposite end is equipped with locating part, and first elastic component is set on connector and one end of first elastic component is resisted against institute
The end of piston piece is stated, the other end is resisted against on locating part.
Preferably, further include end cap, an access hole, the end cap are equipped in first accommodating chamber and the second accommodating chamber
Lid closes on the access hole.
Preferably, one is equipped at the gas outlet of the valve body prevents liquid from entering the intracorporal water-blocking component of valve, the water-blocking component
The third airflow channel being connected with one with second airflow channel, and valve body at the outer wall of the water-blocking component and air inlet
Inner wall between form a reservoir, the valve body is equipped with a runner being connected with the reservoir.
Preferably, the exit of the runner is equipped with a conduit coupling, be equipped in the runner control runner into
The switch block that opens or closes of mouth, the switch block include the second elastic component and closeouts, and the one of second elastic component
End is resisted against on conduit coupling, and opposite end is resisted against in the closeouts, and the closeouts are set to the import of the import of runner
Place and the import that runner is blocked under the action of the second elastic component.
Preferably, one is additionally provided at the air inlet of the valve body for preventing flame from entering the fire arrester in oil tank.
Preferably, one is additionally provided at the air inlet of the valve body for fixing the circlip of the fire arrester.
Preferably, a sealing ring is also arranged on the fire arrester.
The beneficial effects of the utility model are:
(1) traditional thread connecting mode is replaced by using the mode of flanged joint, pressure vacuum valve can be made to be mounted on
The middle part of oil tank delivery pipe and the position for facilitating operation, and detection mouth and access hole are set on valve body, maintain easily personnel into
Row detection and/or maintenance.
(2) logical by the whole design of core assembly and core assembly control the first airflow channel of control and the second air-flow
The connectivity in road carrys out the pressure in balance tank, improves the safety of oil tank.
(3) by the way that water-blocking component is arranged at gas outlet, the liquid reflux of oil tank discharge inside pipe wall can be effectively prevent to valve
In vivo, the job stability of pressure vacuum valve is improved.
(4) by the way that fire arrester is arranged at air inlet, flame can be effectively prevent to enter in oil tank, improves safety.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram of the utility model；
Fig. 2 is the schematic cross-sectional view of the utility model；
Fig. 3 is the stereoscopic schematic diagram of the core assembly of the utility model.
Appended drawing reference: 1, valve body, 10, circlip, 11, air inlet, 12, gas outlet, 13, spool chamber, the 131, first accommodating chamber,
132, the second accommodating chamber, 133, access hole, the 14, first airflow channel, the 15, second airflow channel, 16, detection mouth, 17, runner,
18, closeouts, the 19, second elastic component, 2, core assembly, 21, piston piece, 21a, end, 21b, peripheral portion, 21c, the second ventilation
Hole, 22, connector, 23, locating part, 24, abutment, the 25, first elastic component, 3, air inlet flange, 4, gas outlet flange, 5, point
Partition, the 51, first venthole, 6, end cap, 7, water-blocking component, 71, third airflow channel, 72, reservoir, 8, conduit coupling, 9,
Fire arrester.
Specific embodiment
Below in conjunction with the attached drawing of the utility model, the technical solution of the utility model embodiment is carried out clear, complete
Description.
A kind of revealed pressure vacuum valve of the utility model, the mountable middle part in oil tank delivery pipe and facilitates operation
Position, and detect and/or be not necessarily to disassemble it from oil tank delivery pipe when overhauling that detection and/or maintenance can be completed.
In conjunction with shown in Fig. 1, Fig. 2 and Fig. 3, the utility model is revealed a kind of to be mounted in the middle part of pipeline and easy to operate
Pressure vacuum valve comprising valve body 1, core assembly 2, air inlet flange 3 and gas outlet flange 4, valve body 1 include air inlet 11,
Gas outlet 12, take shape in spool chamber 13 in valve body 1, take shape in valve body 1 in and be connected to the of air inlet 11 and spool chamber 13
One airflow channel 14 and the second airflow channel 15 for taking shape in valve body 1 and being connected to gas outlet 12 Yu spool chamber 13.Wherein, into
Port flange 3 is installed at the air inlet 11 of valve body 1, and the installing of gas outlet flange 4 is embodied at the gas outlet 12 of valve body 1
When, air inlet flange 3 and valve body 1 are connect using integrally formed mode, gas outlet flange 4 equally with valve body 1 using one at
The mode of type connects, and certainly, air inlet flange 3 and gas outlet flange 4 can also be connect using other modes with valve body 1, such as logical
Bolt is crossed air inlet flange 3 and gas outlet flange 4 to be installed on valve body 1 etc..
Pressure vacuum valve described in the utility model replaces traditional threaded connection side by using the mode of flanged joint
On the one hand formula can make pressure vacuum valve be mounted on the middle part of oil tank delivery pipe and facilitate the position of operation, maintain easily personnel into
On the other hand row detection and/or maintenance make the installation of pressure vacuum valve more convenient.
In conjunction with shown in Fig. 2 and Fig. 3, core assembly 2 is installed in the spool chamber 13, is used to control the first airflow channel
Whether 14 be connected to the second airflow channel 15, and when implementation, core assembly 2 is logical by the first airflow channel 14 of control and the second air-flow
The connectivity in road 15 carrys out the pressure in balance tank, i.e., when oily pressure inside the tank is excessive, core assembly 2 controls the first airflow channel
14 are connected with the second airflow channel 15, so that the gas in oil tank is entered in the first airflow channel 14 by air inlet 11, and
Enter the second airflow channel 15 through the first airflow channel 14, is most discharged afterwards through gas outlet 12；When generating negative pressure in oil tank, spool
Equally the first airflow channel 14 of control of component 2 is connected with the second airflow channel 15, so that the gas outside oil tank passes through gas outlet
12 enter the second airflow channels 15 in, and through the second airflow channel 15 enter the first airflow channel 14, most afterwards through air inlet 11 into
Enter in oil tank.
Specifically, as shown in Fig. 2, being equipped with a demarcation plate 5 in spool chamber 13, spool chamber 13 is divided for the first accommodating chamber
131 and second accommodating chamber 132, wherein the first accommodating chamber 131 is connected with the first airflow channel 14, the second accommodating chamber 132 and
Two airflow channels 15 are connected, and when implementation, the first accommodating chamber 131 has an opening, and the first accommodating chamber 131 passes through opening and first
Airflow channel 14, which is connected, to be passed through, and similarly, the second accommodating chamber 132 also has an opening, and the second accommodating chamber 132 passes through opening and the
Two airflow channels 15 are connected.
Further, demarcation plate 5 is equipped with the first ventilation for making the first accommodating chamber 131 be connected with the second accommodating chamber 132
Hole 51, when it is implemented, core assembly 2 is set in the first accommodating chamber 131, and it is logical to block described first under gravity
Stomata 51, certainly, core assembly 2 can also be set in the second accommodating chamber 132.
As shown in Fig. 2, core assembly 2 includes piston piece 21 and keeps out component, wherein piston piece 21 is hollow tubular knot
Structure, with end 21a and peripheral portion 21b, the piston piece 21 can be within the scope of preset strokes in the first accommodating chamber 131 on
Lower movement is realized and controls opening or closing for first venthole 51.The end is resisted against on demarcation plate 5, for blocking
First venthole 51, and several second ventholes 21c is additionally provided on end, the second venthole 21c is used for
When generating negative pressure in oil tank, the gas in the second accommodating chamber 132 is set to enter the first accommodating chamber by the second venthole 21c
In 131；Component is kept out on piston piece 21, and blocks the second venthole 21c.
Further, keeping out component includes connector 22, locating part 23, abutment 24 and the first elastic component 25, connector
22 are located in piston piece 21 and run through the end of piston piece 21, and traversing through end is fixedly connected with abutment 24, and abutment 24 is used for
The second venthole 21c is withstood, opposite end is equipped with locating part 23.First elastic component 25 is located at the inside of piston piece 21, and covers
It is located on connector 22, one end of first elastic component 25 is resisted against the end, and the other end is resisted against on locating part 23.Tool
When body is implemented, the preferred spring of the first elastic component.
When the pressure in oil tank is greater than preset value, the gas in oil tank enters the first accommodating chamber through the first airflow channel 14
In 131, since abutment 24 withstands the second venthole 21c, so that the gas in the first accommodating chamber 131 can not pass through
Two venthole 21c enter in the second accommodating chamber 132, and therefore, core assembly 2 is jacked up under the action of gas pressure, so that institute
The first venthole 51 opening is stated, the gas in the first accommodating chamber 131 enters the second accommodating chamber 132 by first venthole 51
In, and be discharged through the second airflow channel 15, to realize oil tank internal and external pressure balance；It is external when in oil tank being negative pressure state
Gas enters in the second accommodating chamber 132 through the second airflow channel 15, due to being in negative pressure state in oil tank, so the second accommodating chamber
Gas pressure in 132 is greater than the gas pressure in the first accommodating chamber 131 so that abutment 24 under the action of gas pressure to
It is moved in first accommodating chamber 131, opens the second venthole 21c, the gas in the second accommodating chamber 132 is logical by first
Stomata 51 enters in the first accommodating chamber 131, and enters in oil tank through the first airflow channel 14, to realize that oil tank external and internal pressure is flat
Weighing apparatus.
Further, for the ease of being overhauled to the core assembly 2 in spool chamber 13, the first accommodating chamber 131 and second
Accommodating chamber 132 is equipped with an access hole 133, and when implementation, access hole 133 is realized by end cap 6 and blocked.When needs overhaul or replace
When core assembly 2, only need to open end cap 6 can be overhauled or be replaced to spool.
As shown in Figure 1, for the ease of detecting to pressure vacuum valve, such as detect whether it works normally or to detect its close
Sealing property etc., valve body 1 are equipped with a detection mouth 16, and the detection mouth 16 is connected with the first airflow channel 14.When implementation, detection
Mouth 16 is blocked by a plug, the preferred screw plug of plug.When test, plug is removed, while making detection mouth 16
It is connected with tester, whether tester pressurizes to test it and work normally and its close into pressure vacuum valve by detection mouth 16
Whether closing property is intact.
In order to prevent in the liquid reflux to valve body 1 of oil tank discharge inside pipe wall, the normal work of spool, the valve body are influenced
A water-blocking component 7 is equipped at 1 gas outlet 12.7 one side of water-blocking component is used to collect the liquid of oil tank discharge inside pipe wall reflux,
On the one hand prevent liquid from entering in valve body 1.As shown, the whole flare of water-blocking component 7, forms logical with the second air-flow thereon
The third airflow channel 71 that road 15 is connected normally enters gas and is discharged from oil tank in oil tank.
Further, a reservoir 72 is formed between the outer wall of water-blocking component 7 and the inner wall of valve body 1, for collecting reflux
Liquid.A runner 17 being connected with the reservoir 72 is additionally provided on valve body 1, the liquid in reservoir 72 passes through the runner
17 discharges.
As shown in Fig. 2, the exit of runner is equipped with a conduit coupling 8, when implementation, conduit coupling 8 connects a hose,
The liquid in reservoir 72 is acquired by the software.
Further, the switch block that the import of the control runner opens or closes is additionally provided in runner 17, it is described
Switch block includes closeouts 18 and the second elastic component 19, and the closeouts 18 are set to the entrance of runner and block runner
Import；One end of second elastic component 19 is resisted against on conduit coupling 8, and the other end is resisted against in closeouts 18.When reservoir 72
When interior liquid accumulation is a certain amount of, liquid-driving closeouts 18 are removed from entrance, the liquid in reservoir 72 by import into
In air stream enter runner and flow out；After liquid outflow, closeouts 18 reset under the action of the second elastic component 19, block tunnel inlets,
Reservoir 72 is set to continue to collect liquid.When it is implemented, the preferred ball of closeouts 18, the preferred spring of the second elastic component 19.
As shown in Fig. 2, being additionally provided with a fire arrester 9 at the air inlet 11 of valve body 1, fire arrester 9 is whole cylindrical, is used for
Prevent flame from entering in oil tank.Further, one is equipped at the air inlet 11 of valve body 1 for fixing the circlip 10 of fire arrester 9, valve
Inner wall outwardly convex at the air inlet 11 of body 1 forms one and keeps out boss, and fire arrester 9, which is located at, keeps out between boss and circlip 10,
By the way that circlip 10 is arranged, on the one hand realizes and the installation of fire arrester 9 is fixed, be on the other hand conveniently replaceable fire arrester 9.Further
Ground is also arranged with a sealing ring on the outer circumference surface of fire arrester 9, improves the sealing performance of fire arrester 9.
The technology contents and technical characteristic of the utility model have revealed that as above, however those skilled in the art still may be used
Can teaching based on the utility model and announcement and make various replacements and modification without departing substantially from the spirit of the present invention, therefore, this
Utility model protection range should be not limited to the revealed content of embodiment, and should include the various replacements without departing substantially from the utility model
And modification, and covered by present patent application claim.
Claims (10)
- Be mounted in the middle part of pipeline and easy to operate pressure vacuum valve 1. a kind of, which is characterized in that including valve body, core assembly, Air inlet flange and gas outlet flange, the valve body include air inlet, gas outlet, take shape in the intracorporal spool chamber of valve, take shape in In valve body and the connection air inlet and the first airflow channel of the spool chamber and to take shape in valve body interior and be connected to the outlet Second airflow channel of mouth and the spool chamber, the air inlet flange are installed at the air inlet of the valve body, the outlet Mouth flange is installed at the gas outlet of the valve body, and the core assembly is set in the spool chamber, for controlling described first Airflow channel is connected to second airflow channel, and the detection being connected with first airflow channel is additionally provided on the valve body Mouthful.
- 2. pressure vacuum valve according to claim 1, which is characterized in that be equipped in the spool chamber for dividing spool chamber For the demarcation plate of the first accommodating chamber and the second accommodating chamber, the demarcation plate, which is equipped with, makes the first accommodating chamber be connected with the second accommodating chamber The first logical venthole.
- 3. pressure vacuum valve according to claim 2, which is characterized in that the core assembly includes piston piece and keeps out group Part, the piston piece have one for blocking the end of first venthole, the end of the piston piece be equipped with several the Two ventholes, the component of keeping out are installed on the piston piece and block second venthole.
- 4. pressure vacuum valve according to claim 3, which is characterized in that it is described keep out component include connector, locating part, Abutment and the first elastic component, the connector are set to the end in the piston piece and running through the piston piece, and traversing through end Equipped with the abutment for blocking second venthole, opposite end is equipped with locating part, and first elastic component is set in connection On part and one end of first elastic component is resisted against the end of the piston piece, and the other end is resisted against on locating part.
- 5. pressure vacuum valve according to claim 2, which is characterized in that it further include end cap, first accommodating chamber and An access hole is equipped in two accommodating chambers, the end cap lid closes on the access hole.
- 6. pressure vacuum valve according to claim 1, which is characterized in that being equipped with one at the gas outlet of the valve body prevents liquid Body enters the intracorporal water-blocking component of valve, and the water-blocking component has a third airflow channel being connected with second airflow channel, And a reservoir is formed at the outer wall and air inlet of the water-blocking component between the inner wall of valve body, the valve body be equipped with one with it is described The runner that reservoir is connected.
- 7. pressure vacuum valve according to claim 6, which is characterized in that the exit of the runner is connected equipped with a pipeline Part, the switch block that the interior import for being equipped with a control runner of the runner opens or closes, the switch block includes the second bullet Property part and closeouts, one end of second elastic component are resisted against on conduit coupling, and opposite end is resisted against in the closeouts, The closeouts are set to the entrance of the import of runner and block the import of runner under the action of the second elastic component.
- 8. pressure vacuum valve according to claim 1, which is characterized in that be additionally provided with one at the air inlet of the valve body and be used for Prevent flame from entering the fire arrester in oil tank.
- 9. pressure vacuum valve according to claim 8, which is characterized in that be additionally provided with one at the air inlet of the valve body and be used for The circlip of the fixed fire arrester.
- 10. pressure vacuum valve according to claim 8, which is characterized in that be also arranged with a sealing ring on the fire arrester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821842486.3U CN209054135U (en) | 2018-11-09 | 2018-11-09 | It is a kind of to be mounted on pipeline middle part and easy to operate pressure vacuum valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821842486.3U CN209054135U (en) | 2018-11-09 | 2018-11-09 | It is a kind of to be mounted on pipeline middle part and easy to operate pressure vacuum valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209054135U true CN209054135U (en) | 2019-07-02 |
Family
ID=67053024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821842486.3U Active CN209054135U (en) | 2018-11-09 | 2018-11-09 | It is a kind of to be mounted on pipeline middle part and easy to operate pressure vacuum valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209054135U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109237088A (en) * | 2018-11-09 | 2019-01-18 | 优必得石油设备(苏州)有限公司 | It is a kind of to be mounted on pipeline middle part and easy to operate pressure vacuum valve |
-
2018
- 2018-11-09 CN CN201821842486.3U patent/CN209054135U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109237088A (en) * | 2018-11-09 | 2019-01-18 | 优必得石油设备(苏州)有限公司 | It is a kind of to be mounted on pipeline middle part and easy to operate pressure vacuum valve |
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