CN108825795A - Triangular form double containment cage valve - Google Patents
Triangular form double containment cage valve Download PDFInfo
- Publication number
- CN108825795A CN108825795A CN201811052140.8A CN201811052140A CN108825795A CN 108825795 A CN108825795 A CN 108825795A CN 201811052140 A CN201811052140 A CN 201811052140A CN 108825795 A CN108825795 A CN 108825795A
- Authority
- CN
- China
- Prior art keywords
- cage
- valve
- spool
- triangular
- mesoporous
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 42
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 241001661355 Synapsis Species 0.000 claims 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
- F16K1/38—Valve members of conical shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
A kind of triangular form double containment cage valve is provided, including valve body, the horizontal both ends of valve body and top are respectively equipped with valve port, valve inner is equipped with mesoporous, body top valve port is closed by valve bonnet seal lid, at body top valve port between mesoporous be equipped with valve cage, it is slided up and down in valve cage inner cavity and spool is installed, valve cage includes from body top valve port toward sequentially connected upper cage at mesoporous, middle cage and lower cage, lower cage is set on the mesoporous of valve body, the contact position of middle cage and lower cage, which is equipped with, presses the lower triangular seal ring to form soft seal with spool lower sealing surface when spool is fallen, the contact position of upper cage and middle cage, which is equipped with, presses the upper triangular seal ring to form soft seal with sealing surface on spool when spool is fallen.The present invention uses the triangular seal ring that dimorphism soft seal is formed with spool, the problems such as solving existing sealing ring and spool sealing ring easily slide, valve leak is bigger than normal caused by mutual friction of motion always during the motion, sealing element is hardly damaged, and improves safety coefficient.
Description
Technical field
The invention belongs to cage valve technology fields, and in particular to a kind of triangular form double containment cage valve.
Background technique
Currently, traditional cage construction valve body, the seal form of cage type regulating valve are commonly used in petrochemical industry
It is mostly by the way of being sealed firmly between O-shaped rubber seal or metal.When using O-shaped rubber seal rings for seal, with valve
The up and down action of core, O-shaped rubber seal are easy to be drawn out mounting groove, and O-shaped rubber seal rings for seal is caused to fail.But work as valve cage
When using hard seal form between metal between spool, it is often extremely difficult to the sealing effect of O-shaped rubber seal, valve is let out
Leak bigger than normal, often there is fluid outflow in when closing.In order to improve the sealing performance and seal durability of cage type regulating valve, prevent
Sealing element damage causes equipment failure and may bring safety accident, it is therefore necessary to improve to cage valve.
Summary of the invention
Present invention solves the technical problem that：A kind of triangular form double containment cage valve is provided, the present invention is set between three cages
The triangular seal ring that soft seal is formed with spool is set, its sealing surface just squeezes contact shape with triangular seal ring when spool is fallen
At dimorphism soft sealing structure, thus solve existing sealing ring and spool during the motion always mutual friction of motion and cause
Sealing ring easily slide, the problems such as valve leak is bigger than normal, sealing element is hardly damaged, and is prolonged the service life, and safety coefficient is improved.
The technical solution adopted by the present invention：Triangular form double containment cage valve, including valve body, the horizontal both ends of the valve body and top
Portion is respectively equipped with valve port, and the valve inner is equipped with the mesoporous of axis vertical, and the body top valve port passes through valve bonnet seal lid
It closes, is slidably fitted with valve rod in the valve deck, to being equipped with valve cage, the valve cage inner cavity between mesoporous at the body top valve port
In slide up and down spool be installed, the valve rod lower end is protruded into valve cage to be fixedly connected with spool, and the valve cage includes from valve body
Sequentially connected upper cage, middle cage and lower cage, the lower cage are set on the mesoporous of valve body at mesoporous at the valve port of top, the middle cage
It is installed on lower cage top, is equipped on the inside of the contact position of the middle cage and lower cage and presses shape with spool lower sealing surface when spool is fallen
At the lower triangular seal ring of soft seal, the upper cage is installed on middle cage top, sets on the inside of the contact position of the upper cage and middle cage
Have and presses the upper triangular seal ring to form soft seal with sealing surface on spool when spool is fallen, the upper cage upper surface sealing
It holds out against on valve deck.
Wherein, the middle cage and lower cage contact position, which are equipped with to be clamped by two cages, forms for installing lower triangular seal ring
Two corners of lower trapezoid slot, the lower triangular seal ring are embedded in lower trapezoid slot and are fixed, and the lower triangular form is close
Another corner of seal stretches out lower trapezoid slot and presses to form soft seal with spool lower sealing surface；The upper cage and middle cage contact position
Equipped with clamping the upper trapezoid slot formed for installing triangular seal ring by two cages, two of the upper triangular seal ring
Fixed in corner insertion upper trapezoid slot, described another corner of upper triangular seal ring stretch out upper trapezoid slot and and spool
Upper sealing surface presses to form soft seal.
Further, the lower cage and valve body are split type connection, and the lower cage is installed on the mesoporous of valve body and lower cage
Pass through gasket seal between mesoporous step surface；Or the lower cage is integral type made of directly extending at the mesoporous of valve body
Structure.
Further, the middle cage is equipped with flow window.
Further, the spool is equipped with pressure compensation opening.
Further, the valve deck upper end is equipped with bracket, and the frame upper is supported by actuator, the actuator top
Handwheel is connected on input terminal, the actuator lower output side is fixedly connected with valve rod upper end.
The present invention compared with prior art the advantages of：
1, valve cage is designed to the three-section split formula structure being made of upper cage, middle cage and lower cage by this programme, three cages it
Between setting with spool formed soft seal triangular seal ring, when spool is fallen its sealing surface just with triangular seal ring extruding connects
Touching forms soft sealing structure, thus solve existing sealing ring and spool during the motion always mutual friction of motion and cause
Sealing ring easily slide, the problems such as valve leak is bigger than normal, sealing element is hardly damaged, and extends seal durability, sealing performance
Good, safety coefficient is high；
2, installation of the three-section split formula structure design of valve cage convenient for triangular seal ring, triangular seal ring in this programme
Fixed form use trapezoid groove structure, two angles of triangular seal ring are embedded in two valve cages clampings and are formed by dovetail groove
It is interior, make to fix securely and reliably, will not be slid from mounting groove；
3, this programme discharge characteristic according to needed for client on middle cage opens different flow windows, convenient for people in valve
The observation of flow；
4, cage and valve body adopt a split structure under this programme, replace, are can also be used on valve body convenient for the maintenance of lower cage
The monolithic construction of lower cage is directly processed, is avoided in this way using split type existing leakage problem, user can basis
Oneself needs multiple selections.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is I structure enlargement diagram in Fig. 1.
Specific embodiment
1-2 describes the embodiment of the present invention with reference to the accompanying drawing.
Triangular form double containment cage valve, as shown in Figure 1, including valve body 1, the horizontal both ends of the valve body 1 and top are set respectively
There is valve port, the mesoporous 15 of axis vertical is equipped with inside the valve body 1, the 1 top valve port of valve body is closed by 2 sealing cover of valve deck,
Valve rod 7 is slidably fitted in the valve deck 2,2 upper end of valve deck is equipped with bracket 12, and 12 upper support of bracket has actuator
13, handwheel 14 is connected on 13 upper input of actuator, and 13 lower output side of actuator is fixed with 7 upper end of valve rod
It connects, to valve cage 3 is equipped between mesoporous 15 at the 1 top valve port of valve body, is slided up and down in 3 inner cavity of valve cage and valve is installed
Core 8,7 lower end of valve rod is protruded into valve cage 3 to be fixedly connected with spool 8, and the spool 8 is equipped with pressure compensation opening 16.
Specifically, as shown in Fig. 2, the valve cage 3 includes from 1 top valve port of valve body toward on sequentially connected at mesoporous 15
Cage 4, middle cage 5 and lower cage 6, the lower cage 6 are set on the mesoporous 15 of valve body 1, and the middle cage 5 is installed on lower 6 top of cage, it is described in
It is equipped on the inside of the contact position of cage 5 and lower cage 6 and presses the lower triangle to form soft seal with 8 lower sealing surface of spool when spool 8 is fallen
Type sealing ring 10, the middle cage 5 and lower 6 contact position of cage are equipped with to be clamped by two cages and be formed for installing lower triangular seal ring 10
Lower trapezoid slot 18, the lower triangular seal ring 10 two corners insertion lower trapezoid slot 18 in and fixed, under described
Another corner of triangular seal ring 10 stretches out lower trapezoid slot 18 and presses to form soft seal with 8 lower sealing surface of spool；On described
Cage 4 is installed on middle 5 top of cage, is equipped on the inside of the contact position of the upper cage 4 and middle cage 5 and seals when spool 8 is fallen on spool 8
Press the upper triangular seal ring 11 to form soft seal in face, and the upper cage 4 and 5 contact position of middle cage are equipped with to be clamped by two cages and be formed
For installing the upper trapezoid slot 19 of triangular seal ring 11, two corners of the upper triangular seal ring 11 are embedded in upper trapezoid
Fixed in slot 19, described upper another corner of triangular seal ring 11 stretch out upper trapezoid slot 19 and with sealed on spool 8
Face presses to form soft seal, and the upper 4 upper surface sealing contact of cage is on valve deck 2.
It needs to carry out in a certain order when installing in the present invention：First lower cage 6 is mounted in the mesoporous 15 of valve body 1,
It is mounted on lower cage 6 after again combining middle cage 5 and spool 8, and in the lower trapezoid slot 18 between middle cage 5 and lower cage 6 under installation
Then upper cage 4 is installed on middle cage 5 by triangular seal ring 10, pacify in the upper trapezoid slot 19 that upper cage 4 and middle cage 5 piece together
Triangular seal ring 11 is filled, gasket finally is installed and valve deck 2 compresses upper 4 upper end of cage, valve rod 7 then is installed according to existing sequence
And the components such as the actuator 13 on top, handwheel 14.What valve cage 3 was designed to be made of upper cage 4, middle cage 5 and lower cage 6 by the present invention
The triangular seal ring that soft seal is formed with spool is arranged in three-section split formula structure between three cages, its is close when spool is fallen
Cover just contacts to form soft sealing structure with triangular seal ring extruding, is being moved through to solve existing sealing ring and spool
The problems such as sealing ring easily slides, valve leak is bigger than normal caused by mutual friction of motion always in journey, sealing element is hardly damaged, and is prolonged
Long life improves safety coefficient.When valve is too high by uncontrollable hot temperature, upper triangular seal ring 11 and lower triangular form
Sealing ring 10 may melt, and cause valve that cannot seal, at this moment can rotate handwheel 14 manually, and valve cage 3 is made to continue decline and two
Triangular seal ring forms new hard sealing surface, does not leak completely although can not reach, and risk factor control can be made to exist
Tolerance interval.
Wherein, upper triangular seal ring 11 and lower triangular seal ring 10 can select material according to process environments, may be selected
The good nonmetallic materials of the big wearability of hardness.
Two ways can be used to the structure of lower cage 6 and valve body 1 in the present embodiment：A kind of mode is the lower cage 6 and valve
Body 1 is split type connection, and the lower cage 6 is installed on the mesoporous 15 of valve body 1 and passes through pad between 15 step surface of lower cage 6 and mesoporous
Piece 9 seals, and split type structure is replaced convenient for the maintenance of lower cage 6；Another way is that the lower cage 6 is the mesoporous 15 in valve body 1
Integral structure made of place directly extends, can be very good to avoid leakage problem existing for split type structure in this way.
The middle cage 5 is equipped with flow window 17, the observation convenient for people to flow in valve.
Above-described embodiment, only presently preferred embodiments of the present invention, is not intended to limit the invention practical range, therefore all with this
The equivalence changes that content described in invention claim is done should all be included within scope of the invention as claimed.
Claims (6)
1. triangular form double containment cage valve, including valve body (1), the horizontal both ends of the valve body (1) and top are respectively equipped with valve port, institute
The mesoporous (15) that axis vertical is equipped with inside valve body (1) is stated, valve port is closed by valve deck (2) sealing cover at the top of the valve body (1), institute
It states and is slidably fitted in valve deck (2) valve rod (7), be equipped with valve cage (3) between mesoporous (15) at valve port at the top of the valve body (1),
Slide up and down and be equipped with spool (8) in valve cage (3) inner cavity, valve rod (7) lower end protrude into valve cage (3) with spool (8)
It is fixedly connected, it is characterised in that：The valve cage (3) include at the top of the valve body (1) from valve port toward sequentially connected at mesoporous (15)
Upper cage (4), middle cage (5) and lower cage (6), the lower cage (6) are set on the mesoporous (15) of valve body (1), and the middle cage (5) is installed on
Be equipped on the inside of the contact position of lower cage (6) top, the middle cage (5) and lower cage (6) when spool (8) is fallen with it is close under spool (8)
Cover presses the lower triangular seal ring (10) to form soft seal, and the upper cage (4) is installed on middle cage (5) top, the upper cage
(4) it and is equipped on the inside of the contact position of middle cage (5) and presses to form soft seal with sealing surface on spool (8) when spool (8) is fallen
Upper triangular seal ring (11), upper cage (4) the upper surface sealing contact is on valve deck (2).
2. triangular form double containment cage valve according to claim 1, it is characterised in that：The middle cage (5) and lower cage (6) connect
Synapsis is equipped with and clamps the lower trapezoid slot (18) formed for installing lower triangular seal ring (10), the lower triangular form by two cages
Sealing ring (10) two corners insertion lower trapezoid slot (18) in and fixed, the lower triangular seal ring (10) another
Corner stretches out lower trapezoid slot (18) and presses to form soft seal with spool (8) lower sealing surface；The upper cage (4) and middle cage (5) connect
Synapsis is equipped with and clamps the upper trapezoid slot (19) formed for installing triangular seal ring (11), the upper triangular form by two cages
Sealing ring (11) two corners insertion upper trapezoid slot (19) in and fixed, the upper triangular seal ring (11) another
Corner stretches out upper trapezoid slot (19) and presses to form soft seal with sealing surface on spool (8).
3. triangular form double containment cage valve according to claim 1 or 2, it is characterised in that：The lower cage (6) and valve body
It (1) is split type connection, the lower cage (6) is installed on the mesoporous (15) of valve body (1) and lower cage (6) and mesoporous (15) step surface
Between by gasket (9) seal；Or the lower cage (6) is one made of directly extending at the mesoporous (15) of valve body (1)
Formula structure.
4. triangular form double containment cage valve according to claim 3, it is characterised in that：The middle cage (5) is equipped with flow
Window (17).
5. triangular form double containment cage valve according to claim 4, it is characterised in that：The spool (8) is equipped with pressure
Balance hole (16).
6. triangular form double containment cage valve according to claim 5, it is characterised in that：Valve deck (2) upper end is equipped with branch
Frame (12), bracket (12) upper support have actuator (13), are connected with handwheel on actuator (13) upper input
(14), actuator (13) lower output side is fixedly connected with valve rod (7) upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811052140.8A CN108825795B (en) | 2018-09-10 | 2018-09-10 | Triangle double-seal cage valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811052140.8A CN108825795B (en) | 2018-09-10 | 2018-09-10 | Triangle double-seal cage valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108825795A true CN108825795A (en) | 2018-11-16 |
| CN108825795B CN108825795B (en) | 2024-02-23 |
Family
ID=64149135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811052140.8A Active CN108825795B (en) | 2018-09-10 | 2018-09-10 | Triangle double-seal cage valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108825795B (en) |
Citations (18)
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|---|---|---|---|---|
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| US5778918A (en) * | 1996-10-18 | 1998-07-14 | Varco Shaffer, Inc. | Pilot valve with improved cage |
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| CN2694087Y (en) * | 2004-04-23 | 2005-04-20 | 上海平安高压调节阀门厂 | Steam trap regulating valve |
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-
2018
- 2018-09-10 CN CN201811052140.8A patent/CN108825795B/en active Active
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| Title |
|---|
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| 史沫;: "先导式笼式调节阀的结构及所需执行机构驱动力的计算", 仪器仪表用户, no. 01, pages 49 - 50 * |
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