CN209705360U - A kind of oil refining special safety valve - Google Patents
A kind of oil refining special safety valve Download PDFInfo
- Publication number
- CN209705360U CN209705360U CN201920550995.7U CN201920550995U CN209705360U CN 209705360 U CN209705360 U CN 209705360U CN 201920550995 U CN201920550995 U CN 201920550995U CN 209705360 U CN209705360 U CN 209705360U
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- sealing
- valve body
- safety valve
- moving spring
- plug
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Abstract
The utility model relates to a kind of oil refining special safety valves, including safe valve body, safe valve body one end inner cavity has been connected through a screw thread thread plug, the thread plug side is fixed with telescopic rod, when the gas pressure in pipeline or pressure vessel is excessively high, sealing plate pushes first back-moving spring to do compression movement after being pressurized, when gas pressure is greater than the elastic force of first back-moving spring, sealing plate is separated with sealing ring, petroleum enters safety valve body lumen from oil inlet, after similarly petroleum enters safety valve body lumen, sealing-plug pushes second back-moving spring to do compression movement, when safety valve body lumen pressure is greater than the elastic force of second back-moving spring, sealing-plug rises separates with safe valve body, petroleum, which enters sealing tube inner chamber from safety valve body lumen, can carry out pressure release to pipeline or pressure vessel from oil outlet discharge again, otherwise pressure is less than When the elastic force of first back-moving spring or second back-moving spring, safety valve is closed, dual-seal, good seal performance.
Description
Technical field
The utility model relates to a kind of oil refining special safety valves, belong to valve field.
Background technique
The safety valve application of currently available technology on the pipeline or pressure vessel by protection system, with guarantee pipeline or
The safety of pressure vessel, especially applies the safety valve in petrochemical industry, and current safety valve has certain lack
It falls into, for example sealing performance is bad, installation maintenance is complicated, and it is inconvenient that the discharge pressure of valve is adjusted, it is therefore desirable to be further improved and complete
It is kind.
Utility model content
The technical problems to be solved in the utility model overcomes existing defect, provides a kind of oil refining special safety valve, sealing
Performance is good, and the discharge pressure of valve is easy to adjust, is facilitated by the first fixed plate of setting and safety valve is fixedly mounted on pipeline or pressure
On force container, by be arranged telescopic rod can prevent sealing plate from shaking, make sealing plate can only left and right stretching motion, when pipeline or pressure
When gas pressure in force container is excessively high, sealing plate pushes first back-moving spring to do compression movement after being pressurized, when gas pressure is big
Sealing plate is separated with sealing ring when the elastic force of first back-moving spring, and petroleum enters safety valve body lumen from oil inlet, similarly
After petroleum enters safety valve body lumen, sealing-plug pushes second back-moving spring to do compression movement, when safety valve body lumen pressure
Sealing-plug rising is separated with safe valve body when power is greater than the elastic force of second back-moving spring, and petroleum enters from safety valve body lumen
Pressure release can be carried out to pipeline or pressure vessel from oil outlet discharge again by sealing tube inner chamber, otherwise pressure is less than first back-moving spring
Or second back-moving spring elastic force when, safety valve is closed, and dual-seal, good seal performance can prevent safety valve oil leak, pass through
Knob rotation thread plug can be adjusted the compression degree of first back-moving spring, and then can press the discharge of valve and carry out
It adjusts, can effectively solve the problems in background technique.
In order to solve the above-mentioned technical problem, the utility model provides the following technical solution:
A kind of oil refining special safety valve, including safe valve body, safe valve body one end inner cavity are connected through a screw thread
There is thread plug, the thread plug side is fixed with telescopic rod, and described telescopic rod one end is fixed with sealing plate, the sealing plate
Side is located at telescopic rod outer sheath equipped with first back-moving spring, and the safe valve body is equipped with oil inlet far from one end of thread plug
Mouthful, the safety valve body top is fixed with sealing drum, and the junction of the safe valve body and sealing drum is equipped with hole slot,
The sealing tube inner chamber is fixed with limit cover board, interts in the middle part of the limit cover board and is equipped with guide rod, the guide rod bottom is fixed
It is located at guide rod outer sheath equipped with sealing-plug, above the sealing-plug and is equipped with second back-moving spring, and the second back-moving spring
Elastic force is less than the elastic force of first back-moving spring, and the sealing drum two sides are symmetrically arranged with oil outlet, pass through spiral shell at the top of the sealing drum
Silk is fixedly connected with sealing cover.
Furthermore, the thread plug side is fixed with knob, and anti-skid chequer is equipped on the outside of the knob.
Furthermore, safety valve body lumen side, which is located at oil inlet, is fixed with sealing ring.
Furthermore, fixing sleeve is equipped with the first fixed plate on the outside of described oil inlet one end, and in first fixed plate
Fixation hole is symmetrically dug.
Furthermore, fixing sleeve is equipped with the second fixed plate on the outside of described oil outlet one end, and in second fixed plate
Fixation hole is symmetrically dug.
Furthermore, the telescopic rod is made of hollow stem and solid hopkinson bar, and described solid hopkinson bar one end be arranged in it is hollow
Bar inner cavity.
The utility model is the utility model has the advantages that a kind of oil refining special safety valve, good seal performance, valve involved in the utility model
The discharge pressure of door is easy to adjust, is facilitated by the first fixed plate of setting and safety valve is fixedly mounted on pipeline or pressure vessel,
By be arranged telescopic rod can prevent sealing plate from shaking, make sealing plate can only left and right stretching motion, when in pipeline or pressure vessel
Gas pressure it is excessively high when, sealing plate pushes first back-moving spring to do compression movement after being pressurized, when to be greater than first multiple for gas pressure
Sealing plate is separated with sealing ring when the elastic force of position spring, and petroleum enters safety valve body lumen from oil inlet, and similarly petroleum enters
After safety valve body lumen, sealing-plug pushes second back-moving spring to do compression movement, when safety valve body lumen pressure is greater than the
Sealing-plug rising is separated with safe valve body when the elastic force of two reset springs, and petroleum enters in sealing drum from safety valve body lumen
Chamber can carry out pressure release from oil outlet discharge again to pipeline or pressure vessel, otherwise pressure is multiple less than first back-moving spring or second
When the elastic force of position spring, safety valve is closed, and dual-seal, good seal performance can prevent safety valve oil leak, be rotated by knob
Thread plug can be adjusted the compression degree of first back-moving spring, so can the discharge pressure to valve be adjusted.
Detailed description of the invention
Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this
Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.
Fig. 1 is a kind of oil refining special safety valve cross-sectional view of the utility model.
Fig. 2 is a kind of oil refining special safety valve main view of the utility model.
Fig. 3 is a kind of telescopic rod cross-sectional view for refining oil special safety valve of the utility model.
Figure label: 1, safe valve body；2, thread plug；3, telescopic rod；4, sealing plate；5, first back-moving spring；6, into
Hydraulic fluid port；7, sealing drum；8, cover board is limited；9, guide rod；10, sealing-plug；11, second back-moving spring；12, oil outlet；13, it seals
Lid；14, knob；15, sealing ring；16, the first fixed plate；17, the second fixed plate；18, hollow stem；19, solid hopkinson bar.
Specific embodiment
It is illustrated below in conjunction with preferred embodiment of the attached drawing to the utility model, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
As shown in Figure 1-Figure 3, a kind of oil refining special safety valve, including safe valve body 1, described safe 1 one end of valve body
Inner cavity has been connected through a screw thread thread plug 2, and rotating thread plug 2 by knob 14 can be to the compression degree of first back-moving spring 5
Be adjusted, so can the discharge pressure to valve be adjusted, 2 side of thread plug is fixed with telescopic rod 3, by setting
Setting telescopic rod 3 can prevent sealing plate 4 from shaking, make sealing plate 4 can only left and right stretching motion, the fixation of described 3 one end of telescopic rod sets
There is sealing plate 4, sealing plate 4 can block oil inlet 6, and 4 side of sealing plate is located at 3 outer sheath of telescopic rod and is equipped with the
One reset spring 5, the safe valve body 1 are equipped with oil inlet 6 far from one end of thread plug 2, consolidate at the top of the safe valve body 1
Surely it is equipped with sealing drum 7, and the junction of the safe valve body 1 and sealing drum 7 is equipped with hole slot, 7 inner cavity of sealing drum is fixed
Equipped with limit cover board 8, interts in the middle part of the limit cover board 8 and be equipped with guide rod 9,9 bottom of guide rod is fixed with sealing-plug 10, institute
It states and is located at 9 outer sheath of guide rod above sealing-plug 10 equipped with second back-moving spring 11, and the elastic force of the second back-moving spring 11 is small
In the elastic force of first back-moving spring 5, the elastic force of second back-moving spring 11 is less than elastic force, that is, sealing-plug 10 of first back-moving spring 5
Sealing function is served as, will not influence the discharge pressure of valve, when safe 1 chamber pressure of valve body is greater than the bullet of second back-moving spring 11
The rising of sealing-plug 10 is separated with safe valve body 1 when power, and petroleum enters 7 inner cavity of sealing drum again from out from safe 1 inner cavity of valve body
The discharge of hydraulic fluid port 12 can carry out pressure release to pipeline or pressure vessel, and 7 two sides of sealing drum are symmetrically arranged with oil outlet 12, described close
Sealing cover 13 has been fixed by screws at the top of sealed tube 7.
2 side of thread plug is fixed with knob 14, and anti-skid chequer is equipped on the outside of the knob 14, facilitates rotation screw thread
Plug 2, the safe 1 inner cavity side of valve body, which is located at oil inlet 6, is fixed with sealing ring 15, and setting sealing ring 15 can be improved
The sealing performance of valve, fixing sleeve is equipped with the first fixed plate 16 on the outside of described 6 one end of oil inlet, and in first fixed plate 16
Fixation hole is symmetrically dug, convenient that installation is fixed to valve, it is solid to be equipped with second for fixing sleeve on the outside of described 12 one end of oil outlet
Fixed board 17, and fixation hole has symmetrically been dug in second fixed plate 17, facilitate valve to be fixedly connected with flowline, it is described flexible
Bar 3 is made of hollow stem 18 and solid hopkinson bar 19, and 19 one end of the solid hopkinson bar is arranged in 18 inner cavity of hollow stem.
Utility model works principle: safety valve is fixedly mounted on by the first fixed plate 16 by pipeline or pressure vessel
On, when the gas pressure in pipeline or pressure vessel is excessively high, sealing plate 4 pushes first back-moving spring 5 to do compression fortune after being pressurized
Dynamic, when pressure is greater than the elastic force of first back-moving spring 5, sealing plate 4 is separated with sealing ring 15, and petroleum enters safety from oil inlet 6
1 inner cavity of valve body, after similarly petroleum enters safe 1 inner cavity of valve body, sealing-plug 10 pushes second back-moving spring 11 to do compression fortune
Dynamic, when safe 1 chamber pressure of valve body is greater than the elastic force of second back-moving spring 11, sealing-plug 10 rises divides with safe valve body 1
From, petroleum from safe 1 inner cavity of valve body enter 7 inner cavity of sealing drum again from the discharge of oil outlet 12 can to pipeline or pressure vessel into
Row pressure release, otherwise pressure is less than the elastic force of first back-moving spring 5 or second back-moving spring 11, safety valve is closed, dual-seal,
Good seal performance can prevent safety valve oil leak, and rotating thread plug 2 by knob 14 can be to the compression of first back-moving spring 5
Degree is adjusted, so can the discharge pressure to valve be adjusted.
The above are the preferable embodiment of the utility model, the utility model those skilled in the art can also be to upper
It states embodiment to change and modify, therefore, the utility model is not limited to above-mentioned specific embodiment, all abilities
Field technique personnel made any conspicuous improvement, replacement or modification on the basis of the utility model belong to practical
Novel protection scope.
Claims (6)
1. a kind of oil refining special safety valve, including safe valve body (1), it is characterised in that: in described safe valve body (1) one end
Chamber has been connected through a screw thread thread plug (2), and thread plug (2) side is fixed with telescopic rod (3), the telescopic rod (3) one
End is fixed with sealing plate (4), and sealing plate (4) side is located at telescopic rod (3) outer sheath and is equipped with first back-moving spring (5),
The safe valve body (1) is equipped with oil inlet (6) far from the one end of thread plug (2), and fixation is set at the top of the safe valve body (1)
Have sealing drum (7), and the junction of the safe valve body (1) and sealing drum (7) is equipped with hole slot, sealing drum (7) inner cavity
It is fixed with limit cover board (8), interts in the middle part of the limit cover board (8) and is equipped with guide rod (9), guide rod (9) the bottom fixation is set
Have sealing-plug (10), guide rod (9) outer sheath is located above the sealing-plug (10) and is equipped with second back-moving spring (11), and described the
The elastic force of two reset springs (11) is less than the elastic force of first back-moving spring (5), and sealing drum (7) two sides are symmetrically arranged with oil outlet
(12), sealing cover (13) have been fixed by screws at the top of the sealing drum (7).
2. a kind of oil refining special safety valve according to claim 1, it is characterised in that: thread plug (2) side is fixed
Equipped with knob (14), and anti-skid chequer is equipped on the outside of the knob (14).
3. a kind of oil refining special safety valve according to claim 1, it is characterised in that: safe valve body (1) inner cavity
Side, which is located at oil inlet (6), is fixed with sealing ring (15).
4. a kind of oil refining special safety valve according to claim 1, it is characterised in that: on the outside of described oil inlet (6) one end
Fixing sleeve is equipped with the first fixed plate (16), and has symmetrically dug fixation hole in first fixed plate (16).
5. a kind of oil refining special safety valve according to claim 1, it is characterised in that: on the outside of described oil outlet (12) one end
Fixing sleeve is equipped with the second fixed plate (17), and has symmetrically dug fixation hole in second fixed plate (17).
6. a kind of oil refining special safety valve according to claim 1, it is characterised in that: the telescopic rod (3) is by hollow stem
(18) it is formed with solid hopkinson bar (19), and the solid hopkinson bar (19) one end is arranged in hollow stem (18) inner cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920550995.7U CN209705360U (en) | 2019-04-22 | 2019-04-22 | A kind of oil refining special safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920550995.7U CN209705360U (en) | 2019-04-22 | 2019-04-22 | A kind of oil refining special safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209705360U true CN209705360U (en) | 2019-11-29 |
Family
ID=68648701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920550995.7U Expired - Fee Related CN209705360U (en) | 2019-04-22 | 2019-04-22 | A kind of oil refining special safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209705360U (en) |
-
2019
- 2019-04-22 CN CN201920550995.7U patent/CN209705360U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191129 Termination date: 20200422 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |