CN203146954U - Self-inspection type double-valve-head regulation valve - Google Patents
Self-inspection type double-valve-head regulation valve Download PDFInfo
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- CN203146954U CN203146954U CN 201320127796 CN201320127796U CN203146954U CN 203146954 U CN203146954 U CN 203146954U CN 201320127796 CN201320127796 CN 201320127796 CN 201320127796 U CN201320127796 U CN 201320127796U CN 203146954 U CN203146954 U CN 203146954U
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- 238000007689 inspection Methods 0.000 title abstract 3
- 238000007789 sealing Methods 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 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
- 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
- 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
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002950 deficient 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
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Abstract
The utility model relates to a technical field of a valve, in particular to a self-inspection type double-valve-head regulation valve which comprises a valve seat, valve heads and a shell body. In the shell body, regulation sleeves are arranged on outer sides of the valve heads, the valve heads are arranged in the regulation sleeves, valve cores are arranged inside the valve heads, and circular-disk-shaped sealing blocks are arranged on valve rods on upper portions of the valve heads. The shell body is fixedly connected on the upper portions of the valve cores, and annular sealing pieces are arranged at valve rod extending-out openings on the outer side of the upper portion of the shell body. Annular grooves are formed in sealing faces contacted with the valve heads and on the upper portion of the valve seat. Material injecting holes are formed in the side portion of the valve seat and are communicated with the annular grooves. Through holes are formed at bottoms of the valve heads. One end of each through hole is communicated with each annular groove in the valve seat, and the other end of each through hole is located in the contacting face of each valve head and the bottom of each valve core and is communicated with the annular groove in each valve head. The self-inspection type double-valve-head regulation valve has the advantages of being labor-saving in initial openning, long in service life, and good in sealing effect.
Description
Technical field
The utility model 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 ouput force that modulating valve is initially opened just needed very big, and it is big to be difficult for unlatching or consumes energy, and valve components is impaired easily, reduces the working life of valve.In addition, after valve used a period of time, the sealing surface wear between valve head and the valve seat can cause leakage, and during repair and maintenance, equipment must be shut down, and influenced the user and used, and it is bigger that equipment expends the energy when moving again, improved cost.
Summary of the invention
The utility model provides a kind of initial unlatching easy in order to overcome above-mentioned defective, open laborsaving, the self-checking type bivalve head modulating valve of long service life.
The technical solution adopted in the utility model 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 the adjustment sleeve; Valve head is arranged in the 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 at 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 the spool stretches in the groove of valve head; Valve rod on valve head top arranges the disc sealing block, and when spool was positioned at the valve head inner top, sealing block was close proximity to housing top board bottom, is provided with lip ring at upper outside, the valve rod extending port place of housing.
Because the utility model is provided with spool in valve head inside, form the structure of secondary valve head, transmission device drives valve earlier by valve rod
CoreMobile 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 again to move, starting force is little, rapid operation, and valve opening is easy; At the adjustment sleeve of valve head outside design band through hole and at valve head chamber wall through hole is set, all can open the flow of fluid afterwards by regulating valve, flow is little when realizing initial the unlatching, flow increases gradually along with the progressively unlatching of spool and valve head, flow is excessive when having avoided conventional valves initially to open, cause the valve internal component to be subject to undermine the phenomenon of flow shakiness, thereby improve the working life of valve.
The utility model has also designed: the top of valve seat, the sealing surface that contacts with valve head are provided with annular groove, have material hole at the valve seat sidepiece, and 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 the sealing surface that valve seat contacts, and communicate with the annular groove on the valve seat, the other end communicates with annular groove on valve head and the valve core sealed cover.
In the utility model, the sealing block on the 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 utility model, the replace block of annular is set in the annular groove inside of valve seat, and the replace block size is corresponding with the annular groove size, on the top of replace block annular groove is set also, this annular groove bottom is provided with through hole, and this through hole is connected with material hole on the valve seat.
In the utility model, 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 water conservancy diversion net of through flow hole, the water conservancy diversion net is cylindrical, and distributing at the tube wall of water conservancy diversion net is provided with through hole.
Because the sealing surface of the utility model on valve seat top designed annular groove, 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 behind the 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 the valve seat, and abrasive or sealer also can enter between valve head and the spool bottom like this, also can realize the injecting glue leak stopping to the two; The utility model 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 utility model on valve rod at valve rod extending port arranged outside Sealing, effectively improves the sealing effect between valve rod and the housing.
Description of drawings
Fig. 1 is the utility model embodiment 1 schematic representation.
Fig. 2 is the utility model embodiment 2 schematic representation.
Embodiment
Now by reference to the accompanying drawings the utility model is further described, Fig. 1 is embodiment 1 of the present utility model, 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 the adjustment sleeve 5, and adjustment sleeve 5 height are consistent with shell inner chamber height.Valve head 2 is arranged in the 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 at 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 are arranged, the relevant position of valve head 2 inwalls is distributed with the groove with the tooth coupling, tooth on the 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.Valve rod 4 on valve head 2 tops arranges disc sealing block 7, and when valve disc was positioned at valve head 2 inner tops, sealing block 7 was close proximity to housing 3 top board bottoms, is provided with lip ring 8 at upper outside, the valve rod 4 extending port places of housing 3.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, inboard, valve rod 4 extending port place are provided with and the corresponding arc-shaped concave of sealing block 7 upper surfaces.
Being installed between equipment penstock and the waste pipe with modulating valve of the present utility model is example explanation working procedure.When needing Open valve, driving spool 6 by transmission device earlier by valve rod 4 moves up, water in the 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 tops, drive valve head 2 by spool 6 and move up together, the bar hole of water on adjustment sleeve 5 in the penstock flows to waste pipe.Flow was less when valve head 2 was just opened, and along with the flow that moves up of valve head 2 increases gradually, flow is excessive when having avoided conventional valves initially to open, 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 the valve rod 4 is close proximity to housing 3 tops, usually valve in use for some time, because valve rod 4 is when moving up and down and the wearing and tearing between the housing 3, the opening that stretches out of housing 3 upper valve rods 4 leaks easily, utilize 7 pairs of upper opening portions of sealing block to seal, utilize 7 pairs of bottoms of sealing block to seal, effectively improve sealing effect.
Fig. 2 is embodiment 2 of the present utility model, in comprising embodiment 1 the whole technological scheme, also comprise following technological scheme: the top of valve seat 1, the sealing surface that contacts with valve head 2 are 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 inject abrasive or sealer in the material hole 10, again plug is pulled down.Valve head 2 inside bottom, with the sealing surface of spool 6 on also be provided with annular groove, namely at valve seat 1 annular groove is set, in valve head 2, also be provided with an annular groove.Bottom at valve head 2 is provided with through hole, and this through hole one end is positioned on valve head 2 and the sealing surface that valve seat 1 contacts, and communicates with annular groove on the 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 the 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 the described valve head 2 is arranged on the 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, opening and closing easily.In the bottom of valve head 2 base plates, the arranged outside water conservancy diversion net 12 of through flow hole 13, water conservancy diversion net 12 is cylindrical, distributing at the tube wall of water conservancy diversion net 12 is provided with through hole, water conservancy diversion net 12 can reduce restriction loss, reduces noise.
Being installed between equipment penstock and the waste pipe with modulating valve of the present utility model is example explanation embodiment's 2 working procedure.When valve opening, the same with embodiment 1, driving spool 6 by transmission device earlier by valve rod 4 moves up, water in the 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 tops, driving valve head 2 by spool 6 moves up together, the bar hole of water on adjustment sleeve 5 in the penstock flows to waste pipe, flow was less when valve head 2 was just opened, along with the flow that moves up of valve head 2 increases gradually, flow is excessive when avoiding conventional valves initially to open, and 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, sealing effect was improved at the extending port place that the sealing block 7 on the valve rod 4 is close proximity to housing 3 top valve stem 4.When valve need 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 valve closing with valve head 2 with valve seat 1.
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 injecting abrasive in the material hole 10 on valve seat 1, make abrasive arrive and be full of the annular groove on valve seat 1 top, rotating valve head 2 then, 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 cost.If during the equipment operation, occur behind the throttle down leaking, can be by in material hole 10, injecting sealer, make sealer arrive 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 the operation of not influence equipment like this.
When equipment is stopped transport, can not have the leak detection of pressure, valve head 2 is 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 the valve head 2 in material hole 10 enters the annular groove on valve seat 1 top; Because valve head 2 bottoms are provided with the through hole that is connected with annular groove on the valve seat 1, 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 the spool 6.Traditional leak detection must allow equipment operation, makes to be full of pressure in the pipeline and could to detect, and wastes energy and material.
Transmission device in the utility model, can be on valve rod 4 tops handwheel to be set, by manually carrying out transmission, also can be on valve rod 4 tops electric transmissio mechanism to be set, as electric pushrod etc., just as long as realize that valve rod 4 upper and lower movements and rotatablely moving of several angle can.In the utility model, the interior spline that forms of groove that tooth on the spool 6 stretches on valve head 2 walls connects, can will be provided with the space between described tooth and the 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 the valve head 2, safeguard.In the utility model, when big as valve head 2 excessive differential pressures, can inside and outside sheathed plural valve head 2.
It is easy to the utlity model has initial unlatching, open laborsaving, 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 the adjustment sleeve; Valve head is arranged in the 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 at 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 the spool stretches in the groove of valve head; Valve rod on valve head top arranges the disc sealing block, and when spool was positioned at the valve head inner top, sealing block was close proximity to housing top board bottom, is provided with lip ring at upper outside, the valve rod extending port place of housing.
2. self-checking type bivalve head modulating valve according to claim 1, it is characterized in that: the top of valve seat, the sealing surface that contacts with valve head are 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 the sealing surface that valve seat contacts, and communicate with the annular groove on the valve seat, the other end communicates with annular groove on valve head and the 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 the 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 the valve seat.
5. according to each described self-checking type bivalve head modulating valve in the 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 water conservancy diversion net of through flow hole, the water conservancy diversion net is cylindrical, and distributing at the tube wall of water conservancy diversion net is provided with through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320127796 CN203146954U (en) | 2013-03-20 | 2013-03-20 | Self-inspection type double-valve-head regulation valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320127796 CN203146954U (en) | 2013-03-20 | 2013-03-20 | Self-inspection type double-valve-head regulation valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146954U true CN203146954U (en) | 2013-08-21 |
Family
ID=48974478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320127796 Expired - Lifetime CN203146954U (en) | 2013-03-20 | 2013-03-20 | Self-inspection type double-valve-head regulation valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203146954U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174855A (en) * | 2013-03-20 | 2013-06-26 | 潘健 | Self-checking type double-valve-head regulating valve |
-
2013
- 2013-03-20 CN CN 201320127796 patent/CN203146954U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174855A (en) * | 2013-03-20 | 2013-06-26 | 潘健 | Self-checking type double-valve-head regulating valve |
| CN103174855B (en) * | 2013-03-20 | 2015-04-08 | 潘健 | Self-checking type double-valve-head regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130821 Effective date of abandoning: 20150408 |
|
| RGAV | Abandon patent right to avoid regrant |