CN205937951U - Two isolation fixed ball valve under water of releasing - Google Patents
Two isolation fixed ball valve under water of releasing Download PDFInfo
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- CN205937951U CN205937951U CN201620931971.2U CN201620931971U CN205937951U CN 205937951 U CN205937951 U CN 205937951U CN 201620931971 U CN201620931971 U CN 201620931971U CN 205937951 U CN205937951 U CN 205937951U
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- valve seat
- disk seat
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Abstract
The utility model relates to a two isolation fixed ball valve under water of releasing installs upper reaches disk seat and low reaches disk seat in the valve body, install the ball core between upper reaches disk seat and the low reaches disk seat, and fixed mounting has the main shaft on the ball core, and the main shaft stretches out the valve body, is provided with elastic element, one -way general stopper circle and sealing member between upper reaches disk seat and the valve body, is provided with two -way general stopper circle and elastic element between low reaches disk seat and the valve body. The utility model discloses a two isolation fixed ball valve under water of releasing, installation upper reaches disk seat and low reaches disk seat in the valve body set up elastic element, one -way general stopper circle and sealing member between upper reaches disk seat and valve body, downriver set up two -way general stopper circle and elastic element between disk seat and the valve body, not only can realize the two way seal of disk seat, and the play pipe that can also make progress voluntarily when the valve pocket steps up is unusually in addition said can not lead to the fact the pollution to the sea water by the pressure release. Effectively improved the reliability of valve, prolonged the life of valve, especially adapted being applied to in the environment of exempting from the maintenance under water.
Description
Technical field
The utility model is related to deep-sea control valve technical field, especially relates to a kind of pair and isolates fixed underwater ball of releasing
Valve.
Background technology
Ball valve is so that its flow resistance is little, compact conformation the advantages of be widely used in the feed-lines such as natural gas, oil.Traditional
Ball valve is generally only to obtain sealing using single upstream valve seat, and that is, upstream valve seat to be held tightly by the promotion of upstream pressure medium
Core realizes sealing, once upstream seal lost efficacy, whole valve just lost efficacy；When being sealed using double-valve-seat, upstream seal lost efficacy
Afterwards, downstream valve seat can also be realized sealing, and during valve pocket pressure rise, the bleeder valve of valve pocket is opened, valve pocket pressure of automatically releasing, from
And effectively improve the sealing effectiveness of valve.But this structure not only increases the outer leak source of valve, but also pollutes environment.
Due to the particularity of underwater environment, valve cannot keep in repair under water, change under water, so the reliability to ball valve under water
Property and durability are put forward higher requirement.It is especially used in the ball valve under water of natural gas line, because natural gas line has
The features such as pipeline pressure is high, flow velocity is fast, in the course of the work, valve internal will bear the pressure of pumped (conveying) medium under water, and outside will
Bear the pressure of seawater, meanwhile, when valve pocket due to temperature change causes pressure rapidly to raise when in addition it is also necessary to pressure release is carried out to valve pocket
Process it is considered to environmental protection, prevent seawater pollution, valve pocket pressure directly can not be released into sea by bleeder valve, therefore, tradition
Ball valve be not applied for underwater environment.
Utility model content
The technical problems to be solved in the utility model is：In order to overcome traditional ball valve to obtain using single upstream valve seat
During sealing, once upstream seal lost efficacy, whole valve just lost efficacy；When sealing using double-valve-seat, not only increase the outer of valve
Leak source, but also pollute environment it is impossible to be applied to the problem of underwater environment, provide a kind of pair to isolate fixed underwater ball of releasing
Valve.
The utility model solves its technical problem and be employed technical scheme comprise that：Isolate fixed underwater ball of releasing for a kind of pair
Valve, including valve body, is symmetrically installed with upstream valve seat and downstream valve seat, described upstream valve seat and described downstream valve seat in described valve body
Between be rotatablely equipped with core, described core is installed with main shaft, described main shaft stretches out described valve body, main shaft rotarily drives
Core rotates, and realizes switch motion；Between described upstream valve seat and valve body setting have elastic component, unidirectional general stopper ring and sealing
Part, described upstream valve seat is single-piston from being provided with two-way general stopper ring and bullet between pressure release valve seat, described downstream valve seat and valve body
Property element, described downstream valve seat be double-piston two way seal valve seat.
In order to realize the supporting role to core, make the rotation of core sensitiveer, be detachably provided with described valve body
Bearing shell and lower bearing, described top bearing shell is oppositely arranged with described lower bearing, and described core is rotatably installed in described top bearing shell and institute
State between lower bearing.
Upstream valve seat and downstream valve seat are installed for convenience, described valve body is split type valve body, including main valve body and secondary valve
Body, described main valve body is fixedly connected with described auxiliary valve body, and described upstream valve seat is arranged on auxiliary valve body, and described downstream valve seat is installed
On main valve body.
In order to improve the pretension sealing force of valve seat, described flexible member is spring, and two described springs are embedded in institute respectively
State in upstream valve seat and described downstream valve seat.
In order to realize one-way sealing and the effect from pressure release of upstream valve seat, described seal is O-ring, described O-ring
It is embedded in described upstream valve seat, before and after making upstream valve seat, compression face produces difference in areas.
The beneficial effects of the utility model are:Isolate fixed underwater ball valve of releasing, in valve body for of the present utility model pair
Upstream valve seat and downstream valve seat are installed, setting flexible member, unidirectional general stopper ring and seal between upstream valve seat and valve body,
Two-way general stopper ring and flexible member are set between downstream valve seat and valve body, the two way seal of valve seat, Er Qie can not only be realized
When valve pocket extremely boosts can also upstream pipeline pressure release automatically, seawater will not be polluted.Effectively increase valve can
By property, extend the service life of valve, be highly suitable to be applied under water in the environment of freedom from repairs.
Brief description
With reference to the accompanying drawings and examples the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the enlarged drawing at A in the utility model Fig. 1, that is,：Upstream valve seat structural representation；
Fig. 3 is the enlarged drawing at B in the utility model Fig. 1, that is,：Downstream valve seat structural representation.
In figure：1. upstream valve seat, 2. downstream valve seat, 3. core, 4. main shaft, 5. unidirectional general stopper ring, 6. two-way general stopper ring, 7.
Top bearing shell, 8. lower bearing, 9. main valve body, 10. auxiliary valve body, 11. springs, 12.O type circle.
Specific embodiment
Presently in connection with accompanying drawing, the utility model is described in more detail.These accompanying drawings are the schematic diagram of simplification,
Basic structure of the present utility model is only described in a schematic way, therefore it only shows the composition relevant with the utility model.
Isolate fixed underwater ball valve of releasing for as shown in Figure 1 a kind of pair, including valve body, valve body is split type valve body, bag
Include main valve body 9 and auxiliary valve body 10, main valve body 9 is fixedly connected with auxiliary valve body 10, and auxiliary valve body 10 is provided with upstream valve seat 1, main valve
Downstream valve seat 2 is provided with body 9, core 3 is installed between upstream valve seat 1 and downstream valve seat 2, core 3 is installed with master
Axle 4, main shaft 4 stretches out valve body, and main shaft 4 rotarily drives core 3 and rotates, and realizes switch motion；Upper shaft is detachably installed in valve body
Watts 7 and lower bearing 8, top bearing shell 7 is oppositely arranged with lower bearing 8, and core 3 is rotatably installed between top bearing shell 7 and lower bearing 8.
It is provided with spring 11, unidirectional general stopper ring 5 and O-ring 12 between upstream valve seat 1 and auxiliary valve body 10, as shown in Fig. 2 bullet
Spring 11 is embedded in upstream valve seat 1, and the telescopic direction of spring 11 is identical with the moving direction of upstream valve seat 1, the two ends of spring 11
Contact with auxiliary valve body 10 and upstream valve seat 1 respectively, O-ring 12 is embedded in upstream valve seat 1；Between downstream valve seat 2 and main valve body 9
It is provided with two-way general stopper ring 6 and spring 11, as shown in figure 3, spring 11 is embedded in downstream valve seat 2, the telescopic direction of spring 11
Identical with the moving direction of downstream valve seat 2, the two ends of spring 11 are contacted with main valve body 9 and downstream valve seat 2 respectively.
During work, when pipeline pressure is for normal pressure, by pressure medium, upstream valve seat 1 is pushed to core 3, holds tightly
Core 3 realizes upstream seal；When pipeline pressure is for low-pressure or no pressure, provided by the spring 11 at upstream valve seat 1 back side
Seal preload, thus ensure sealing property in this case.
During work, downstream valve seat 2 is acted on the positive thrust on area A4 by downstream line pressure, and (active force points to core
, and lumen pressure medium acts on positive thrust on area A3 and the positive thrust of downstream valve seat 2 back side spring 11, downstream valve 3)
Seat 2 is pushed to core 3, is close to sphere and reaches sealing.So valve is no matter under any state, even if downstream line no pressure,
This valve seat construction can be realized sealing.
When lumen has pressure, because upstream valve seat 1 is subject to lumen pressure medium active area A2 to be more than upstream line medium
Active area A1, so when valve lumen pressure anomaly is increased to certain value, what upstream valve seat 1 was subject to pushes the power of core 3 to
Less than the power pushing core 3 open, with the rising of middle cavity pressure, the power by pushing core 3 to is bigger, pastes with core 3 for downstream valve seat 2
Close tightr, and upstream valve seat 1 pushed away from core 3, lumen pressure releasing to upstream line is it is ensured that the safe operation of valve.I.e.
Make upstream valve seat 1 bad seals that leakage to occur, this partial compromise can also be blocked by downstream valve seat 2 completely, sealing is relatively reliable.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, related work people
Member can carry out various change and modification completely in the range of without departing from this utility model technological thought.This reality
The content being not limited on specification with new technical scope it is necessary to determine its technology according to right
Property scope.
Claims (5)
1. a kind of double isolation release fixed underwater ball valve it is characterised in that：Including valve body, in described valve body, upstream valve is installed
Seat (1) and downstream valve seat (2), are provided with core (3), described core between described upstream valve seat (1) and described downstream valve seat (2)
(3) it is installed with main shaft (4) on, described main shaft (4) stretches out described valve body, described upstream valve seat (1) is arranged and valve body between
Have elastic component, unidirectional general stopper ring (5) and seal, described downstream valve seat (2) is provided with two-way general stopper ring (6) and valve body between
And flexible member.
2. as claimed in claim 1 double isolation release fixed underwater ball valve it is characterised in that：Detachably pacify in described valve body
Equipped with top bearing shell (7) and lower bearing (8), described top bearing shell (7) and described lower bearing (8) are oppositely arranged, and described core (3) rotates
It is arranged between described top bearing shell (7) and described lower bearing (8).
3. as claimed in claim 1 double isolation release fixed underwater ball valve it is characterised in that：Described valve body is split type valve
Body, including main valve body (9) and auxiliary valve body (10), described main valve body (9) is fixedly connected with described auxiliary valve body (10), described upstream valve
Seat (1) is arranged on auxiliary valve body (10), and described downstream valve seat (2) is arranged on main valve body (9).
4. as claimed in claim 1 double isolation release fixed underwater ball valve it is characterised in that：Described flexible member is spring
(11), two described springs (11) are embedded in described upstream valve seat (1) and described downstream valve seat (2) respectively.
5. as claimed in claim 1 double isolation release fixed underwater ball valve it is characterised in that：Described seal is O-ring
(12), described O-ring (12) is embedded in described upstream valve seat (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620931971.2U CN205937951U (en) | 2016-08-24 | 2016-08-24 | Two isolation fixed ball valve under water of releasing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620931971.2U CN205937951U (en) | 2016-08-24 | 2016-08-24 | Two isolation fixed ball valve under water of releasing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205937951U true CN205937951U (en) | 2017-02-08 |
Family
ID=57952260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620931971.2U Active CN205937951U (en) | 2016-08-24 | 2016-08-24 | Two isolation fixed ball valve under water of releasing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205937951U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109140012A (en) * | 2018-10-10 | 2019-01-04 | 特阀江苏流体机械制造有限公司 | A kind of pair is isolated Fixed ball valve of releasing |
| CN113048258A (en) * | 2021-03-15 | 2021-06-29 | 滨州永泰不锈钢制品有限公司 | Seabed high pressure ball valve seal structure |
| CN113187921A (en) * | 2021-05-04 | 2021-07-30 | 滨州永泰不锈钢制品有限公司 | Submarine ball valve with long service life and preparation method thereof |
-
2016
- 2016-08-24 CN CN201620931971.2U patent/CN205937951U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109140012A (en) * | 2018-10-10 | 2019-01-04 | 特阀江苏流体机械制造有限公司 | A kind of pair is isolated Fixed ball valve of releasing |
| CN113048258A (en) * | 2021-03-15 | 2021-06-29 | 滨州永泰不锈钢制品有限公司 | Seabed high pressure ball valve seal structure |
| CN113048258B (en) * | 2021-03-15 | 2024-06-04 | 滨州永泰不锈钢制品股份有限公司 | Sealing structure of seabed high-pressure ball valve |
| CN113187921A (en) * | 2021-05-04 | 2021-07-30 | 滨州永泰不锈钢制品有限公司 | Submarine ball valve with long service life and preparation method thereof |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |