CN103174855A - Self-checking type double-valve-head regulating valve - Google Patents
Self-checking type double-valve-head regulating valve Download PDFInfo
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- CN103174855A CN103174855A CN2013100898301A CN201310089830A CN103174855A CN 103174855 A CN103174855 A CN 103174855A CN 2013100898301 A CN2013100898301 A CN 2013100898301A CN 201310089830 A CN201310089830 A CN 201310089830A CN 103174855 A CN103174855 A CN 103174855A
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- 230000001105 regulatory effect Effects 0.000 title abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims description 22
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 206010044565 Tremor Diseases 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The invention relates to the technical field of valves, in particular to a self-checking type double-valve-head regulating valve. The self-checking type double-valve-head regulating valve comprises a vale seat, a valve head and a shell. An adjusting sleeve is arranged on the outer side of the valve head and in the shell. The valve head is arranged in the adjusting sleeve. A valve element is arranged in the valve head. A disc-shaped sealing block is arranged on a valve rod on the upper portion of the valve head. The shell is fixedly connected with the upper portion of the valve element. An annular sealing part is arranged on the outer side of the upper portion of the shell and at the position of an extending port of the valve rod. An annular groove is arranged in a sealing surface, contacting with the valve head, of the upper portion of the valve seat. A feeding hole is formed in the later side of the valve seat and is communicated with the annular groove. A through hole is formed in the bottom of the valve head. One end of the through hole is communicated with the annular groove in the valve seat. The other end of the through hole is located on the surface where the valve head contacts with the bottom of the valve element and is communicated with the annular groove in the valve head. The self-checking type double-valve-head regulating valve has the advantages of being easy to open at the beginning, labor-saving in opening, long in service life, and good in sealing effect.
Description
Technical field
The present invention relates to a kind of technical field of valve, specifically a kind of self-checking type bivalve head modulating valve.
Background technique
Modulating valve is the valve for flow, pressure and the liquid level of regulating medium, is a kind of adjustable mechanical throttling arrangement, by the aperture of control valve, thereby reaches the purpose of the adjusting of rate-of flow, pressure and liquid level.When the pressure reduction of modulating valve both sides was excessive, the initial ouput force of opening of modulating valve just needed very large, be difficult for opening or consumes energy large, valve components is easily impaired, reduces the working life of valve.In addition, after valve used a period of time, the sealing surface wear between valve head and valve seat can cause leakage, and during repair and maintenance, equipment must be shut down, and affected the user and used, and it is larger that equipment expends the energy when again moving, and improved cost.
Summary of the invention
The present invention provides a kind of initial unlatching easy in order to overcome defects, labor-saving opening, the self-checking type bivalve head modulating valve of long service life.
The technical solution used in the present invention is: a kind of self-checking type bivalve head modulating valve, comprise valve seat, valve head and housing, housing is arranged on valve seat top, valve head is arranged on the inside of valve seat top, housing, and the valve rod on valve head top stretches out housing, and valve rod top is connected with transmission device, it is characterized in that: in housing, the arranged outside adjustment sleeve of valve head, adjustment sleeve is tubular shape, and the through hole of bar shaped vertically is set on adjustment sleeve; Valve head is arranged in adjustment sleeve, the valve head cylindrical is corresponding with the adjustment sleeve endoporus, valve head is columniform cavity, the long strip through hole vertically is set on the wall of chamber, has circular through flow hole on the valve head base plate, valve head inside arranges spool, valve rod is fixedly connected on spool top, along the spool circle distribution, tooth is arranged, the relevant position of valve head inwall is distributed with the groove with the tooth coupling, and the tooth on spool stretches in the groove of valve head; The disc sealing block is set on the valve rod on valve head top, and when spool was positioned at the valve head inner top, sealing block was close proximity to housing top board bottom, and the place is provided with lip ring at the upper outside of housing, valve rod extending port.
Because the present invention is provided with spool in valve head inside, form the structure of secondary valve head, transmission device first drives valve by valve rod
CoreMove in valve head, driving valve head by spool again moves up and down, because the spool area is little, its compression face is less, only needs less ouput force just can open spool, when spool moves to the top of valve head, circulation medium is that fluid makes valve head pressure reduction reduce to drive valve head to move again, starting force is little, rapid operation, and valve opening is easy; With the adjustment sleeve of through hole and on the wall of valve head chamber, through hole is set in valve head outside design, all can open the flow of fluid afterwards by regulating valve, when realizing initial the unlatching, flow is little, flow increases gradually along with the progressively unlatching of spool and valve head, when having avoided conventional valves initially to open, flow is excessive, cause the valve internal component to be subject to undermine the phenomenon of flow shakiness, thereby improve the working life of valve.
The present invention has also designed: the top of valve seat, with sealing surface that valve head contacts on be provided with annular groove, have material hole at the valve seat sidepiece, the end of this material hole is provided with plug, the other end of material hole is connected with annular groove; The valve head inside bottom, with the sealing surface of spool on also be provided with annular groove, bottom at valve head is provided with through hole, this through hole one end is positioned on valve head and sealing surface that valve seat contacts, and communicate with the annular groove on valve seat, the other end communicates with annular groove on valve head and valve core sealed cover.
In the present invention, the sealing block on valve rod, its upper surface are taper or circular arc, and the top of housing, inboard, valve rod extending port place are provided with and the corresponding concave surface of sealing block upper surface; The Sealing in the valve rod extending port outside is sealed packing.
In the present invention, the replace block of annular is set in the annular groove inside of valve seat, the replace block size is corresponding with the annular groove size, on the top of replace block, annular groove is set also, and this annular groove bottom is provided with through hole, and this through hole is connected with material hole on valve seat.
In the present invention, bottom at spool is provided with annular lug, on the base plate of valve head, along through flow hole top, annular boss is set, in the bottom of valve head base plate, the arranged outside flow-guiding screen of through flow hole, flow-guiding screen is cylindrical, and distributing on the tube wall of flow-guiding screen is provided with through hole.
Because the present invention has designed annular groove on the sealing surface on valve seat top, being provided with material hole at the sidepiece of valve seat is communicated with groove, when valve leak, can inject abrasive to annular groove and arrive the sealing surface place by material hole, rotating valve head grinds, just can repair sealing surface, when leaking after throttle down, can inject sealer by material hole and carry out leak stopping; Bottom at valve head is provided with through hole, and through hole communicates with annular groove on valve seat, and abrasive or sealer also can enter between valve head and spool bottom like this, also can realize the injecting glue leak stopping to both; The present invention arranges the annular groove part that replace block can conveniently be replaced serious wear in the annular groove of valve seat, need not to change whole valve seat, saves material; The sealing block of the present invention on valve rod at valve rod extending port arranged outside Sealing, effectively improves the sealing effect between valve rod and housing.
Description of drawings
Fig. 1 is the schematic diagram of the embodiment of the present invention 1.
Fig. 2 is the schematic diagram of the embodiment of the present invention 2.
Embodiment
Now the invention will be further described by reference to the accompanying drawings, Fig. 1 is embodiments of the invention 1, comprises valve seat 1, valve head 2 and housing 3, and housing 3 is arranged on valve seat 1 top, valve head 2 is arranged on the inside of valve seat 1 top, housing 3, the valve rod 4 on valve head 2 tops stretches out housing 3, and valve rod 4 tops are connected with transmission device, in housing 3, the arranged outside adjustment sleeve 5 of valve head 2, adjustment sleeve 5 is tubular shape, and the through hole of bar shaped vertically is set on adjustment sleeve 5, and adjustment sleeve 5 height are consistent with shell inner chamber height.Valve head 2 is arranged in adjustment sleeve 5, and valve head 2 cylindricals are corresponding with adjustment sleeve 5 endoporus, and valve head 2 can move up and down the formation piston cylinder operator along adjustment sleeve 5 inwalls.Valve head 2 is columniform cavity, the long strip through hole vertically is set on the wall of chamber, have circular through flow hole 13 on valve head 2 base plates, valve head 2 inside arrange spool 6, and valve rod 4 is fixedly connected on spool 6 tops, along spool 6 circle distribution, tooth is arranged, the relevant position of valve head 2 inwalls is distributed with the groove with the tooth coupling, tooth on spool 6 stretches in the groove of valve head 2, and spool 6 can move up and down along valve head 2 inwalls, also forms piston cylinder operator.On the valve rod 4 on valve head 2 tops, disc sealing block 7 is set, when valve disc was positioned at valve head 2 inner top, sealing block 7 was close proximity to housing 3 top board bottoms, and 4 extending port places are provided with lip ring 8 in the upper outside of housing 3, valve rod.Sealing 8 in the present embodiment is sealed packing, and sealing block 7 its upper surfaces on valve rod 4 are circular arc, and the top of housing 3, valve rod 4 inboards, extending port place are provided with and the sealing block 7 corresponding arc-shaped concaves of upper surface.
Be arranged between equipment penstock and waste pipe as example explanation working procedure take modulating valve of the present invention.When needing Open valve, first be with movable valve plug 6 to move up by transmission device by valve rod 4, water in penstock on the valve head wall the long strip through hole and the through flow hole 13 of valve head 2 bottoms flow to waste pipe, this moment is because spool 6 areas are less, spool 6 compression areas are little, promote easily, and needed starting force is little, open easily, and suitably alleviated the interior pressure of penstock.When spool 6 moves to valve head 2 top, drive valve head 2 by spool 6 and move up together, the bar hole of water on adjustment sleeve 5 in penstock flows to waste pipe.When valve head 2 is just opened, flow is less, and along with the flow that moves up of valve head 2 increases gradually, when having avoided conventional valves initially to open, flow is excessive, and cause the valve internal component to be subject to undermine and regulate unstable phenomenon, thus the working life of improving valve.When valve is opened fully, sealing block 7 on valve rod 4 is close proximity to housing 3 tops, usually valve in use for some time, when moving up and down due to valve rod 4 and the wearing and tearing between housing 3, the opening that stretches out of housing 3 upper valve rods 4 easily leaks, utilize 7 pairs of upper opening portions of sealing block to seal, utilize sealing block 7 pairs of bottoms to seal, effectively improve sealing effect.
Fig. 2 is embodiments of the invention 2, in comprising embodiment 1 whole technological scheme, also comprise following technological scheme: the top of valve seat 1, with sealing surface that valve head 2 contacts on be provided with annular groove, have material hole 10 at valve seat 1 sidepiece, the end of this material hole 10 is provided with plug, and the other end of material hole 10 is connected with annular groove, plug is set can prevents dielectric leakage, when needs during to the interior injection abrasive of material hole 10 or sealer, then plug is pulled down.Valve head 2 inside bottom, with the sealing surface of spool 6 on also be provided with annular groove, an annular groove namely is set on valve seat 1, also be provided with an annular groove in valve head 2.Bottom at valve head 2 is provided with through hole, and this through hole one end is positioned on valve head 2 and sealing surface that valve seat 1 contacts, and communicates with annular groove on valve seat 1, and the other end communicates with annular groove on valve head 2 and spool 6 sealing surfaces.
In the present embodiment
,The replace block 11 of annular is set in the annular groove inside of valve seat 1, replace block 11 sizes are corresponding with the annular groove size, top at replace block 11 also arranges annular groove, and this annular groove bottom is provided with through hole, and this through hole is connected with material hole 10 on valve seat 1.In the present embodiment, be provided with annular lug in the bottom of spool 6, on the base plate of valve head 2, along through flow hole 13 tops, annular boss is set, annular groove on described valve head 2 is arranged on boss, and when spool 6 was closed, the surface of contact of described projection and boss was sealing surface.Design projection and boss make spool 6 flexible movements in order to reduce the sealing surface area, easily opening and closing.In the bottom of valve head 2 base plates, the arranged outside flow-guiding screen 12 of through flow hole 13, flow-guiding screen 12 is cylindrical, distributing on the tube wall of flow-guiding screen 12 is provided with through hole, flow-guiding screen 12 can reduce restriction loss, reduces noise.
Be arranged on the working procedure that embodiment 2 is described as example between equipment penstock and waste pipe take modulating valve of the present invention.When valve opening, in the same manner as in Example 1, first be with movable valve plug 6 to move up by transmission device by valve rod 4, water in penstock on valve head 2 walls the long strip through hole and the through flow hole 13 of valve head 2 bottoms flow to waste pipe, this moment, spool 6 areas were less, promoted easily, and needed starting force is little, open easily, and suitably alleviated the interior pressure of penstock.When spool 6 moves to valve head 2 top, driving valve head 2 by spool 6 moves up together, the bar hole of water on adjustment sleeve 5 in penstock flows to waste pipe, when valve head 2 is just opened, flow is less, along with the flow that moves up of valve head 2 increases gradually, when avoiding conventional valves initially to open, flow is excessive, causes the valve internal component to be subject to undermine the phenomenon of flow shakiness, thereby improves the working life of valve.When valve was opened fully, the sealing block 7 on valve rod 4 was close proximity to extending port place's raising sealing effect of housing 3 top valve stem 4.When valve need to be closed, transmission device drove valve head 2 by valve rod 4 and spool 6 and moves down, and when valve head 2 was down to the bottom, valve head 2 no longer moved down, and spool 6 continues descending, directly causes spool 6 and tightly contacts with valve seat 1 with valve head 2, valve closing.
Usually after modulating valve uses a period of time, valve head 2 can be impaired because of various reasons with the sealing surface of valve seat 1, the contact imprecision occurs and form leakage, at this moment, can be by the interior injection abrasive of material hole 10 on valve seat 1, abrasive is arrived and be full of the annular groove on valve seat 1 top, then rotating valve head 2, is that surface of contact grinds to the sealing surface of valve head 2 and valve seat 1, can keep in repair the slight leakage of valve like this, and need not to replace whole valve, reduce costs.If during the equipment operation, occur after throttle down leaking, can pass through to the interior injection sealer of material hole 10, sealer is arrived and be full of the annular groove on valve seat 1 top, by using sealer that valve head 2 and valve seat 1 are sealed, stop a leak like this, the operation of not impact equipment.
When equipment is stopped transport, can carry out the with no pressure leak detection, valve head 2 be fallen make valve closing, use is suppressed equipment press water is injected material hole 10, whether press water leaks in order to detect between valve seat 1 and valve head 2 in material hole 10 enters the annular groove on valve seat 1 top; Be provided with the through hole that is connected with annular groove on valve seat 1 due to valve head 2 bottoms, whether press water can arrive the sealing surface place of valve head 2 and spool 6 through this through hole, leak in order to detect between valve head 2 and spool 6.Traditional leak detection must allow equipment operation, makes to be full of pressure in pipeline and could to detect, and wastes energy and material.
Transmission device in the present invention, can be on valve rod 4 tops, handwheel to be set, by manually carrying out transmission, can be also on valve rod 4 tops, electric transmissio mechanism to be set, as electric pushrod etc., as long as just realize that valve rod 4 moves up and down and rotatablely moving of several angle can.In the present invention, tooth on spool 6 stretches into the interior spline joint that forms of groove on valve head 2 walls, can will be provided with the space between described tooth and groove, can be slight clockwise direction and counter clockwise direction alternate rotation spool 6 by clockwise and anticlockwise movable valve plug 6 like this, can realize grinding the sealing surface between spool 6 and valve head 2, safeguard.In the present invention, when differential pressure as excessive in valve head 2 is large, can inside and outside sheathed plural valve head 2.
It is easy that the present invention has an initial unlatching, labor-saving opening, long service life, the characteristics of good sealing effect.
Claims (5)
1. self-checking type bivalve head modulating valve, comprise valve seat, valve head and housing, housing is arranged on valve seat top, valve head is arranged on the inside of valve seat top, housing, and the valve rod on valve head top stretches out housing, and valve rod top is connected with transmission device, it is characterized in that: in housing, the arranged outside adjustment sleeve of valve head, adjustment sleeve is tubular shape, and the through hole of bar shaped vertically is set on adjustment sleeve; Valve head is arranged in adjustment sleeve, the valve head cylindrical is corresponding with the adjustment sleeve endoporus, valve head is columniform cavity, the long strip through hole vertically is set on the wall of chamber, has circular through flow hole on the valve head base plate, valve head inside arranges spool, valve rod is fixedly connected on spool top, along the spool circle distribution, tooth is arranged, the relevant position of valve head inwall is distributed with the groove with the tooth coupling, and the tooth on spool stretches in the groove of valve head; The disc sealing block is set on the valve rod on valve head top, and when spool was positioned at the valve head inner top, sealing block was close proximity to housing top board bottom, and the place is provided with lip ring at the upper outside of housing, valve rod extending port.
2. self-checking type bivalve head modulating valve according to claim 1, it is characterized in that: the top of valve seat, with sealing surface that valve head contacts on be provided with annular groove, have material hole at the valve seat sidepiece, the end of this material hole is provided with plug, and the other end of material hole is connected with annular groove; The valve head inside bottom, with the sealing surface of spool on also be provided with annular groove, bottom at valve head is provided with through hole, this through hole one end is positioned on valve head and sealing surface that valve seat contacts, and communicate with the annular groove on valve seat, the other end communicates with annular groove on valve head and valve core sealed cover.
3. self-checking type bivalve head modulating valve according to claim 1, it is characterized in that: the sealing block on valve rod, its upper surface are taper or circular arc, the top of housing, inboard, valve rod extending port place are provided with and the corresponding concave surface of sealing block upper surface; The Sealing in the valve rod extending port outside is sealed packing.
4. self-checking type bivalve head modulating valve according to claim 2, it is characterized in that: the replace block that annular is set in the annular groove inside of valve seat, the replace block size is corresponding with the annular groove size, top at replace block also arranges annular groove, this annular groove bottom is provided with through hole, and this through hole is connected with material hole on valve seat.
5. the described self-checking type bivalve of any one head modulating valve according to claim 1 to 4, it is characterized in that: the bottom at spool is provided with annular lug, on the base plate of valve head, along through flow hole top, annular boss is set, in the bottom of valve head base plate, the arranged outside flow-guiding screen of through flow hole, flow-guiding screen is cylindrical, and distributing on the tube wall of flow-guiding screen is provided with through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310089830.1A CN103174855B (en) | 2013-03-20 | 2013-03-20 | Self-checking type double-valve-head regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310089830.1A CN103174855B (en) | 2013-03-20 | 2013-03-20 | Self-checking type double-valve-head regulating valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103174855A true CN103174855A (en) | 2013-06-26 |
| CN103174855B CN103174855B (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310089830.1A Expired - Fee Related CN103174855B (en) | 2013-03-20 | 2013-03-20 | Self-checking type double-valve-head regulating valve |
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| Country | Link |
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| CN (1) | CN103174855B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836203A (en) * | 2014-02-18 | 2014-06-04 | 潘健 | Valve with double valve heads capable of being sealed |
| CN105782550A (en) * | 2014-12-25 | 2016-07-20 | 浙江三花汽车零部件有限公司 | Two-way piston valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090026395A1 (en) * | 2007-07-25 | 2009-01-29 | Aaron Andrew Perrault | Apparatus to increase fluid flow in a valve |
| CN201916557U (en) * | 2010-12-31 | 2011-08-03 | 无锡华益电力阀门有限公司 | Double-valve-core high-differential-pressure regulating valve |
| CN102278504A (en) * | 2011-06-27 | 2011-12-14 | 上海阀门厂有限公司 | Atmosphere discharge valve |
| CN202451846U (en) * | 2011-12-20 | 2012-09-26 | 季克寅 | Double valve clack large-diameter stop valve |
| CN203146954U (en) * | 2013-03-20 | 2013-08-21 | 潘健 | Self-inspection type double-valve-head regulation valve |
-
2013
- 2013-03-20 CN CN201310089830.1A patent/CN103174855B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090026395A1 (en) * | 2007-07-25 | 2009-01-29 | Aaron Andrew Perrault | Apparatus to increase fluid flow in a valve |
| CN201916557U (en) * | 2010-12-31 | 2011-08-03 | 无锡华益电力阀门有限公司 | Double-valve-core high-differential-pressure regulating valve |
| CN102278504A (en) * | 2011-06-27 | 2011-12-14 | 上海阀门厂有限公司 | Atmosphere discharge valve |
| CN202451846U (en) * | 2011-12-20 | 2012-09-26 | 季克寅 | Double valve clack large-diameter stop valve |
| CN203146954U (en) * | 2013-03-20 | 2013-08-21 | 潘健 | Self-inspection type double-valve-head regulation valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836203A (en) * | 2014-02-18 | 2014-06-04 | 潘健 | Valve with double valve heads capable of being sealed |
| CN105782550A (en) * | 2014-12-25 | 2016-07-20 | 浙江三花汽车零部件有限公司 | Two-way piston valve |
| CN105782550B (en) * | 2014-12-25 | 2019-02-22 | 浙江三花汽车零部件有限公司 | A kind of two logical piston valves |
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| Publication number | Publication date |
|---|---|
| CN103174855B (en) | 2015-04-08 |
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Granted publication date: 20150408 |