CN103836203A - Valve with double valve heads capable of being sealed - Google Patents
Valve with double valve heads capable of being sealed Download PDFInfo
- Publication number
- CN103836203A CN103836203A CN201410054018.XA CN201410054018A CN103836203A CN 103836203 A CN103836203 A CN 103836203A CN 201410054018 A CN201410054018 A CN 201410054018A CN 103836203 A CN103836203 A CN 103836203A
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- Prior art keywords
- valve
- head
- valve head
- sealing
- seat
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- 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.)
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Classifications
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- 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
- F16K1/44—Details of seats or valve members of double-seat valves
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- 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
- F16K1/48—Attaching valve members to screw-spindles
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- 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
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
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- 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
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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- 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
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a valve with double valve heads capable of being sealed. The valve comprises a valve body, wherein the first valve head and a valve seat matched with the first valve head are arranged inside the valve body. The valve with the double valve heads capable of being sealed is characterized in that the second valve head is arranged at the other side of the valve body, the second valve head is matched with the other end surface of the valve seat, a passage of the valve seat forms a sealed chamber after the first valve head, the second valve head and the two end surfaces of the valve seat are all closed in a matched mode, and a detection sealing through hole communicated with the sealing space is formed in the valve body. Compared with the prior art, the valve with the double valve heads capable of being sealed has the advantages of stopping leakage in a sealing mode and being good in detection effect.
Description
Technical field
The invention relates to a kind of valve, and especially one has two valve heads, forms the double end draught excluder of sealing chamber after closing between two valve heads.
Background technique
existing valvular switch all utilizes a valve head to open and close and realizes, and valve self can not self check, after leakage, can not seal, when requiring when tight-closed, as the hazmat such as poisonous, harmful, inflammable, explosive, need install two valves additional, one once door, a secondary door.
Summary of the invention
In order to overcome above-mentioned shortcoming, the invention provides a kind of double end draught excluder, two valve heads are set in valve body, and offer and detect sealing through hole at valve body, detect sealing through hole and communicate with the enclosed space that valve head and valve seat form, there is sealing and detect effective.
For achieving the above object, the technical program is as follows:
A kind of double end draught excluder, comprises valve body, in valve body, is provided with the first valve head and the valve seat of fitted seal with it by valve rod, is also provided with the second valve head, the second valve head and valve seat other end fitted seal on valve body.
Further, the second described valve head is positioned at the offside of the first valve head.
Further, in first, second described valve head, having a valve head at least is adjustable check valve head.
Further, the valve head body that described adjustable check valve head comprises valve rod and is connected with valve rod, the valve head body of stem lower portion is frame shape valve head body, frame shape valve head body upper end is provided with valve gap, lower end and spool fitted seal; The end of valve rod extend into the inner side of frame shape valve head body and can in valve body, slide through valve gap, and the end of valve rod is provided with and stops head.
Further, the first described valve head comprises initiatively valve rod, initiatively the end that is positioned at valve body of valve rod is provided with initiatively valve head, initiatively valve head and valve seat fitted seal, aggressive valve boom end is provided with tapped hole along its central axis, tapped hole screw-thread fit has the driven valve rod of the second valve head, and driven valve rod is provided with the driven valve head that can coordinate with the other end of valve seat through valve seat and the other end, between valve body and driven valve head, is provided with guiding device.
Further, after the first valve head all coordinates with the both ends of the surface of valve seat with the second valve head, the passage of valve seat forms sealing chamber, offers at least one detection blind hole that seal space communicates therewith on described valve body.
Further, between described valve rod and valve body, be provided with Sealing, valve body is provided with the packing inspection leak stopping hole of leading to Sealing.
Further, described valve seat two seal faces are provided with monitoring sealing circular groove, are provided with the monitoring sealing through hole that leads to monitoring sealing circular groove on valve body.
Further, valve body two ends are provided with flange, and described flange end is provided with and checks leak stopping circular groove, offers and the inspection leak stopping through hole that checks that leak stopping circular groove is communicated with on flange.
Working principle of the present invention and working procedure are as follows:
The present invention mainly comprises the valve body that is connected with pipeline, is positioned at two valve heads of valve body and dual face seals valve seat, is positioned at the composition such as detection closed hole and operating mechanism on valve body.
The invention adopts bivalve head, with respect to original single valve head sealing, bivalve head can be on original basis further reinforced seal effect, to improve sealing effect.
Basic functional principle of the present invention is as follows:
Rotate handwheel or electronic two valve heads that make in the closed position, form sealing chamber between two valve heads, valve body is provided with more than one detection sealing through hole, and detects sealing through hole and lead to sealing chamber, and one is connected with detection facility, and one is connected with closed conduit.
After two valve heads in service are closed, can detect valve leak situation by detecting blind hole, as valve leak, can be according to the composition that leaks goods and materials, with not mixing with leaking goods and materials, the not medium-tight of chemical reaction, time out of service, close after two valve heads, can carry out bulge test by detecting blind hole.
On sealing surface of seat corresponding to two valve heads, be provided with separately annular seal groove, the detection blind hole on valve body is connected with annular seal groove, can detect or leak stopping.
All flanges are all provided with and check leak stopping circular groove, and the inspection leak stopping hole on valve body is attached thereto, and the each portion of valve flange can arrange more than one inspection leak stopping hole, and one is connected with detection system, and one is connected with sealing channel, make the sealing of valve conduct monitoring at all levels.Two valve heads can be opened simultaneously or close, also can operations of a standard-sized sheet, realize the using and the reserved.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, the accompanying drawing the following describes is only some embodiments that record in the application, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing;
Fig. 1 is embodiment's 1 structural representation;
Fig. 2 is embodiment's 2 structural representations;
Fig. 3 is embodiment's 3 structural representations.
Embodiment
The correlation technique content of not addressing below all can adopt or use for reference prior art.
In order to make those skilled in the art person understand better the technological scheme in the application, below in conjunction with the accompanying drawing in the embodiment of the present application, technological scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only the application's part embodiment, rather than whole embodiments.Based on the embodiment in the application, those of ordinary skills are not making the every other embodiment who obtains under creative work prerequisite, all should belong to the scope of the application's protection.
Embodiment 1
Shown in Fig. 1, a kind of double end draught excluder, comprises valve body 1, and the two ends of valve body 1 are the flange 2 coordinating with pipeline.
Flange facing is all provided with and checks leak stopping circular groove 21, the each portion of valve flange can arrange more than one inspection leak stopping hole and be communicated with checking leak stopping circular groove, the present embodiment is provided with two: one is connected with detection system, and one is connected with sealing channel, makes the sealing of valve conduct monitoring at all levels.Whether leak for control flange sealing, if leaked, carry out shutoff by inspection leak stopping hole.
In valve body 1, be provided with the first valve head 3, the first valve heads and comprise valve rod 131, valve rod 131 stretches out housing and is provided with packing_seal parts 4 and handwheel 5 etc.
Whether packing_seal position is provided with packing_seal part, packing and checks leak stopping circular groove 41, checks that with packing leak stopping hole communicates, leak for detection of packing_seal, if leaked, checks leak stopping hole by packing, carries out shutoff.
In valve body 1, be provided with valve seat 6, the structure that valve seat 6 is hollow, the upper-end surface of hollow valve seat 6 and the first valve head 3 fitted seal.
In valve body, be provided with the offside that the second valve head 7, the second valve heads 7 are positioned at the first valve head 3 and valve seat 7, and with the other end fitted seal of hollow valve seat 7.
On sealing surface of seat corresponding to two valve heads, be provided with separately monitoring sealing circular groove 61; Valve seat and valve body are provided with detection blind hole 8 and can detect or leak stopping, detect the seal space forming after closed hole 8 coordinates with valve seat and valve head and communicate.
Two valve heads can be opened simultaneously or close, also can operations of a standard-sized sheet, realize the using and the reserved.
In the present embodiment, the second valve head is identical with the structure of the first valve head.And valve head can adopt the valve head form of the CN103174855A in patent documentation.
When use, rotate handwheel or electronic two valve heads that make in the closed position, between two valve heads, form sealing chamber, valve body is provided with more than one detection blind hole and leads to sealing chamber, the present embodiment is provided with three: one is connected with detection facility, one is connected with closed conduit, and one is connected with recovery channel.
After two valve heads in service are closed, can detect valve leak situation by detecting blind hole, as valve leak, leakage rate is little, can recycle from recovery channel pressure release, as need shutoff to leak, can be according to the composition that leaks goods and materials, with not mixing with leakage goods and materials, the not medium-tight of chemical reaction, time out of service, close after two valve heads, can carry out bulge test by detecting blind hole.
Embodiment 2
Compared with embodiment 1, the valve head that has of the present embodiment is adjustable check valve head, and it is adjustable check valve that the present embodiment is selected the first valve head, but does not get rid of the second valve head and also adopt the form of adjustable check valve.Other sealings are identical with embodiment.
Shown in Fig. 2, described adjustable check valve header structure is as follows: the below of valve rod is provided with frame shape valve head body 232, frame shape valve head end is provided with valve gap, the end of valve rod 231 extend into the inner side of frame shape valve head through valve gap, and can be in the 232 interior slips of frame shape valve head body, and be provided with in the end of valve body and stop 233, on the top valve rod of valve gap, also establish sealing block 234.
In the present embodiment, can adopt the adjustable check valve valve head form of the CN103174855A in patent documentation.
The present embodiment is specific as follows: the first valve head of top adopts adjustable check valve head, is the second valve head below, closes valve head, upper and lower at right angle setting.
Rotate handwheel and make two valve heads in enable possition, high-pressure liquid plays the safety check crown, makes fluid circulation, and in the time of switching device, non-return valve head falls, and prevents that fluid from flowing backwards.
Rotate handwheel or electronic two valve heads that make in the closed position, form sealing chamber between two valve heads, valve body is provided with more than one detection blind hole and leads to sealing chamber, and one is connected with detection facility, and one is connected with closed conduit, and one is connected with recovery channel.
After two valve heads in service are closed, can detect valve leak situation by detecting blind hole, as valve leak, leakage rate is little, can recycle from recovery channel pressure release, as need shutoff to leak, can be according to the composition that leaks goods and materials, with not mixing with leakage goods and materials, the not medium-tight of chemical reaction, time out of service, close after two valve heads, can carry out bulge test by detecting blind hole.On sealing surface of seat corresponding to two valve heads, be provided with separately monitoring sealing circular groove, the monitoring closed hole on valve body and monitoring sealing circular groove, can detect or leak stopping.
Whether sealed packing place is provided with packing_seal part, packing checks leak stopping circular groove, checks that with packing leak stopping hole communicates, leak for detection of packing_seal, if leaked, checks leak stopping hole by packing, carries out shutoff.
All flanges are all provided with and check leak stopping circular groove, the each portion of valve flange can arrange more than one inspection leak stopping hole and be communicated with checking leak stopping circular groove, the present embodiment is provided with two: one is connected with detection system, and one is connected with sealing channel, makes the sealing of valve conduct monitoring at all levels.Two valve heads can be opened simultaneously or close, also can operations of a standard-sized sheet, realize the using and the reserved.
Embodiment 3
Shown in Fig. 3, a kind of double end draught excluder, handles stand structure for double end list, comprises the first valve head 31.
The end that described the first valve head 31 is positioned at valve body is provided with the active valve head 32 with valve seat 36 fitted seal, and in the present embodiment, initiatively the lower end surface of valve head 32 adopts crown or cone structure, and with the conical surface seal face fitted seal of valve seat 36.
Initiatively the end position in valve head 32 is also provided with tapped hole along its medial axis, tapped hole screw-thread fit has driven valve rod 33, driven valve rod 33 is provided with the driven valve head 34 that can coordinate with the other end of valve seat through valve seat and the other end, between valve body and driven valve head 34, is provided with guiding device.Driven valve head 34 can not rotate, and can only move up and down along valve body guide groove device.
The guiding device of the present embodiment adopts vertical guiding groove 35 is set in valve body, thereby on valve head, is provided with the form of the guide pad coordinating with guiding groove.
On valve seat 36, be provided with and detect closed hole 37, detect closed hole 37 and can realize leak detection.
Shown in Fig. 3, initiatively valve head is connected with manipulation seat by screw mandrel, and driven valve head is connected with active valve head by driven screw mandrel, handles in a top concentric hole, be provided with and can rotate but irremovable setscrew nut, handwheel is housed on setscrew nut, and initiatively valve rod screw matches with setscrew nut, and handwheel is equipped with in aggressive valve masthead portion, initiatively valve rod screw is provided with locking nut, locking nut coordinates with setscrew nut, can be by aggressive valve rod lock, and setscrew nut can lock with manipulation seat.
When need, initiatively valve head standard-sized sheet is for subsequent use, when driven valve head operation, initiatively valve head standard-sized sheet, uses locking nut to coordinate with setscrew nut, by aggressive valve rod lock, rotating position nut handwheel, now initiatively valve rod can only rotate and can not move up and down, and rotates handwheel or first rotation of electronic drive aggressive valve stem valve, initiatively valve head inner nut and the mating reaction of driven valve rod screw are on valve head, now driven valve head can not rotate, and can only move up and down along valve body guiding groove, realizes the unlatching of driven valve head or closes.
In the time that need are closed two valve heads, first servo valve cuts out, then by setscrew nut and the locking of manipulation seat, locking nut is unclamped, and handwheel or electronic two valve heads that make on rotation active valve rod are in the closed position, form sealing chamber between two valve heads, valve body is provided with more than one detection blind hole and leads to sealing chamber, one is connected with detection facility, and one is connected with closed conduit, and one is connected with recovery channel.
After two valve heads in service are closed, can detect valve leak situation by detecting blind hole, as valve leak, leakage rate is little, can recycle from recovery channel pressure release, as need shutoff to leak, can be according to the composition that leaks goods and materials, with not mixing with leakage goods and materials, the not medium-tight of chemical reaction, time out of service, close after two valve heads, can carry out bulge test by detecting blind hole.Also active valve rod, driven valve rod screw can be arranged to silk structure anyway, setscrew nut and the locking of manipulation seat, the handwheel rotating on active valve rod makes two valve heads open simultaneously or cut out.Two valve heads can be opened simultaneously or close, also can operations of a standard-sized sheet, realize the using and the reserved.
Claims (9)
1. a double end draught excluder, comprises valve body, is provided with the first valve head and the valve seat of fitted seal with it in valve body by valve rod, it is characterized in that: on valve body, be also provided with the second valve head, the second valve head and valve seat other end fitted seal.
2. double end draught excluder according to claim 1, is characterized in that: the second described valve head is positioned at the offside of the first valve head.
3. double end draught excluder according to claim 1 and 2, is characterized in that: in first, second described valve head, having a valve head at least is adjustable check valve head.
4. double end draught excluder according to claim 3, it is characterized in that: the valve head body that described adjustable check valve head comprises valve rod and is connected with valve rod, the valve head body of stem lower portion is frame shape valve head body, and frame shape valve head body upper end is provided with valve gap, lower end and spool fitted seal; The end of valve rod extend into the inner side of frame shape valve head body and can in valve body, slide through valve gap, and the end of valve rod is provided with and stops head.
5. double end draught excluder according to claim 1, it is characterized in that: the first described valve head comprises initiatively valve rod, initiatively the end that is positioned at valve body of valve rod is provided with initiatively valve head, initiatively valve head and valve seat fitted seal, aggressive valve boom end is provided with tapped hole along its central axis, tapped hole screw-thread fit has the driven valve rod of the second valve head, and driven valve rod is provided with the driven valve head that can coordinate with the other end of valve seat through valve seat and the other end, between valve body and driven valve head, is provided with guiding device.
6. according to the double end draught excluder described in claim 1 or 2 or 5, it is characterized in that: after the first valve head and the second valve head all coordinate with the both ends of the surface of valve seat and close, the passage of valve seat forms sealing chamber, offers at least one detection blind hole that seal space communicates therewith on described valve body.
7. double end draught excluder according to claim 4, is characterized in that: between described valve rod and valve body, be provided with Sealing, valve body is provided with the packing inspection leak stopping hole of leading to Sealing.
8. according to the double end draught excluder described in claim 1 or 2 or 5, it is characterized in that: described valve seat two seal faces are provided with monitoring sealing circular groove, on valve body, be provided with the monitoring sealing through hole that leads to monitoring sealing circular groove.
9. double end draught excluder according to claim 1, is characterized in that: valve body two ends are provided with flange, and described flange end is provided with and checks leak stopping circular groove, offers and the inspection leak stopping through hole that checks that leak stopping circular groove is communicated with on flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410054018.XA CN103836203A (en) | 2014-02-18 | 2014-02-18 | Valve with double valve heads capable of being sealed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410054018.XA CN103836203A (en) | 2014-02-18 | 2014-02-18 | Valve with double valve heads capable of being sealed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103836203A true CN103836203A (en) | 2014-06-04 |
Family
ID=50799979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410054018.XA Pending CN103836203A (en) | 2014-02-18 | 2014-02-18 | Valve with double valve heads capable of being sealed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103836203A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939991A (en) * | 2017-11-16 | 2018-04-20 | 天津奇昌阀门制造有限公司 | A kind of New Marine piping flow regulating valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1498645A1 (en) * | 2003-07-18 | 2005-01-19 | Spirax-Sarco Limited | A valve |
| CN2687436Y (en) * | 2004-04-04 | 2005-03-23 | 张永喜 | Double-face sealing valve |
| CN103174855A (en) * | 2013-03-20 | 2013-06-26 | 潘健 | Self-checking type double-valve-head regulating valve |
| CN203146924U (en) * | 2013-03-20 | 2013-08-21 | 潘健 | Maintainable lift check valve |
| CN203703154U (en) * | 2014-02-18 | 2014-07-09 | 潘健 | Double-head closing valve |
-
2014
- 2014-02-18 CN CN201410054018.XA patent/CN103836203A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1498645A1 (en) * | 2003-07-18 | 2005-01-19 | Spirax-Sarco Limited | A valve |
| CN2687436Y (en) * | 2004-04-04 | 2005-03-23 | 张永喜 | Double-face sealing valve |
| CN103174855A (en) * | 2013-03-20 | 2013-06-26 | 潘健 | Self-checking type double-valve-head regulating valve |
| CN203146924U (en) * | 2013-03-20 | 2013-08-21 | 潘健 | Maintainable lift check valve |
| CN203703154U (en) * | 2014-02-18 | 2014-07-09 | 潘健 | Double-head closing valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939991A (en) * | 2017-11-16 | 2018-04-20 | 天津奇昌阀门制造有限公司 | A kind of New Marine piping flow regulating valve |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140604 |