CN203548947U - Sleeve type regulating valve - Google Patents
Sleeve type regulating valve Download PDFInfo
- Publication number
- CN203548947U CN203548947U CN201320620721.3U CN201320620721U CN203548947U CN 203548947 U CN203548947 U CN 203548947U CN 201320620721 U CN201320620721 U CN 201320620721U CN 203548947 U CN203548947 U CN 203548947U
- Authority
- CN
- China
- Prior art keywords
- valve
- sleeve
- seat
- flap
- type regulating
- 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.)
- Expired - Lifetime
Links
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 17
- 239000000945 filler Substances 0.000 claims description 10
- 210000004907 gland Anatomy 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000010355 oscillation Effects 0.000 abstract 1
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Details Of Valves (AREA)
- Lift Valve (AREA)
Abstract
The utility model relates to a sleeve type regulating valve, which mainly comprises an executing mechanism, a valve rod, a valve cover, a valve flap, a valve seat and a valve body, wherein the valve cover is connected with the valve body, the valve seat is positioned in the valve body, the valve cover is in tight pressing matching with the valve seat through a sleeve, the valve rod passes through the valve cover to extend into the sleeve, the lower end of the valve rod is connected with the valve flap, the upper end of the valve rod is connected with an executing mechanism (9), and the executing mechanism is fixedly arranged on the valve cover. The sleeve type regulating valve has the beneficial effects that the balanced valve core is formed through the guide of the valve flap and the sleeve, so the unbalanced force is small, the stability is good, the allowable pressure difference is great, the operation is stable, the guide surface of the valve flap is large, the oscillation caused by eddy current and impact is improved, the phenomenon that the original in-valve parts can be easily damaged is avoided, in addition, the noise is reduced by about 10dB through being compared with that of ordinary one-seat and double-seat regulating valves, the integral structure is simple, and the mounting, the dismounting and the maintenance are very convenient.
Description
Technical field
The utility model relates to the structure of modulating valve, especially a kind of sleeve-type regulating valve.
Background technique
Sleeve-type regulating valve also claims cage valve, is the special modulating valve of a kind of structure.It is widely used in the industries such as power plant, petrochemical industry, papermaking.Present domestic valve industry is among rapid growth.Further optimize production capacity structure, the development that promotes high-end valve industry will become the highest priority of next stage industry development.And valve industry changes and has manifested gradually its powerful growth momentum towards high-endization.Company experiences according to research and development and manufacture for many years, has developed the higher New Sleeve modulating valve of cost performance.It has the advantage of single, double seat valve concurrently, at aspects such as stability, life-span, handling, maintenances, is better than again single, double seat valve, and therefore it has become the main flow of modulating valve.
Summary of the invention
The utility model will solve the shortcoming of above-mentioned prior art, and a kind of sleeve-type regulating valve that keeps in repair easy accessibility, good stability is provided.
The utility model solves the technological scheme that its technical problem adopts: this sleeve-type regulating valve, mainly comprise actuator, valve rod, valve gap, flap, valve seat and valve body, valve gap is connected with valve body, valve seat is positioned at valve body, valve gap is by sleeve and valve seat compression fit, and valve rod stretches in sleeve through valve gap, and the lower end of valve rod is connected with flap, upper end is connected with actuator (9), and actuator is fixed on valve gap.
Between described valve rod and valve gap, be provided with filler.
The top of described filler is provided with Gland.
The contacting point of described sleeve and valve gap and valve body is provided with wound gasket.
Between described valve gap and valve body, be bolted.
Between described valve rod and actuator, by clip nut, be connected.
The effect that the utility model is useful is: the utility model structure forms balanced plug by flap and sleeve guide, therefore large, the stable operation of little, the good stability of unbalanced force, permissible pressure, the guide surface of flap is large, improved by eddy current and impacted the vibration causing, avoided original trim to hold flimsy phenomenon, and than common single, double seat modulating valve reducing noise 10dB left and right, overall is simple in structure, mounting or dismounting maintenance is very convenient.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Description of reference numerals: valve body 1, valve seat 2, flap 3, sleeve 4, wound gasket 5, filler 6, Gland 7, valve rod 8, actuator 9, valve gap 10.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in the figure, this sleeve-type regulating valve, mainly comprise actuator 9, valve rod 8, valve gap 10, flap 3, valve seat 2 and valve body 1, valve gap 10 is connected by bolt with valve body 1, and valve seat 2 is positioned at valve body 1, valve gap 10 is by sleeve 4 and valve seat 2 compression fit, sleeve 4 is provided with wound gasket 5 with the contacting point of valve gap 10 and valve body 1, and valve rod 8 stretches in sleeve 4 through valve gap 10, between valve rod 8 and valve gap 10, is provided with filler 6, the top of filler 6 is provided with Gland 7, plays the effect of sealing.The lower end of valve rod 8 is connected with flap 3, and upper end is connected with actuator 9 by clip nut, and actuator 9 is fixed on valve gap 10.
The utility model utilizes sleeve 4 to lead, and flap can be moved up and down in sleeve, has changed the orifice size of sleeve 4, has formed various Flow characteristicss, and realizes the adjusting of flow.Adopt stream open form structure, medium enters after valve body 1 through sleeve 4, then regulates through flap 3, flows out valve body 1 after valve seat 2.
According to modulating valve working principle, can calculate the relation of flow, pressure drop and the circulation area of the modulating valve fluid of flowing through.
According to fluid mechanics:
Wherein:
Q: mass of medium flow, t/h;
R: medium proportion, kg/m
3;
μ
a: flow coefficient;
A: modulating valve aisle spare, cm
2;
Δ P: the pressure drop that MEDIA FLOW produces when modulating valve, MPa.
When before and after modulating valve, pressure reduction is certain certain value, the circulation area of overregulating valve by changing MEDIA FLOW changes flow.Sleeve-type regulating valve is according to the requirement of negotiability size, has multiple throttling windows on sleeve 4, and the shape of window has determined the Flow characteristics of modulating valve, and the size of window affects the flow coefficient Cv of modulating valve.Thereby formed various Flow characteristicss, and realized the adjusting of flow.Can sleeve 4 surroundings be designed to difform opening according to different flow characteristic, to reach the Flow characteristicss such as linearity or equal percentage, valve rod 8 is directly connected with the actuator 9 of straight journey, by actuator 9, handle valve rod 8, flap 3 is moved at sleeve 4, to change circulation area, carry out control media flow.
The utility model adopts balance type structure, and the unbalanced force that before and after valve, medium differential pressure produces flap is very little, and under identical operating mode, the needed actuator of valve of the same type thrust is little, so its valve rod 8 diameters are less than the non-equilibrium valve design of single seat or selection.Frictional force between valve rod 8 and filler 6 is smaller, has reduced the resistance of valve event, and the wearing and tearing of valve rod 8 and filler 6 are also little, and increase working life.In addition, the valve rod 8 of the small diameter variable quantity that expands with heat and contract with cold when middle high temperature is little, has avoided the situation that between valve rod 8 and filler 6, frictional force increases or holding card clogs mutually when middle high temperature to occur.Because being adopts balance type structure, with the straight-through single-seat valve comparison of unbalanced, the actuator 9 configuring can be smaller, but can overcome the medium differential pressure higher than direct single seat control valve.Novel sleeve modulating valve working life is higher than direct single seat control valve.
In addition to the implementation, the utility model can also have other mode of executions.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (6)
1. a sleeve-type regulating valve, mainly comprise actuator (9), valve rod (8), valve gap (10), flap (3), valve seat (2) and valve body (1), it is characterized in that: valve gap (10) is connected with valve body (1), valve seat (2) is positioned at valve body (1), valve gap (10) is by sleeve (4) and valve seat (2) compression fit, valve rod (8) stretches in sleeve (4) through valve gap (10), the lower end of valve rod (8) is connected with flap (3), upper end is connected with actuator (9), and actuator (9) is fixed on valve gap (10).
2. sleeve-type regulating valve according to claim 1, is characterized in that: between described valve rod (8) and valve gap (10), be provided with filler (6).
3. sleeve-type regulating valve according to claim 2, is characterized in that: the top of described filler (6) is provided with Gland (7).
4. sleeve-type regulating valve according to claim 1, is characterized in that: described sleeve (4) is provided with wound gasket (5) with the contacting point of valve gap (10) and valve body (1).
5. sleeve-type regulating valve according to claim 1, is characterized in that: between described valve gap (10) and valve body (1), be bolted.
6. sleeve-type regulating valve according to claim 1, is characterized in that: between described valve rod (8) and actuator (9), by clip nut, be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320620721.3U CN203548947U (en) | 2013-10-09 | 2013-10-09 | Sleeve type regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320620721.3U CN203548947U (en) | 2013-10-09 | 2013-10-09 | Sleeve type regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203548947U true CN203548947U (en) | 2014-04-16 |
Family
ID=50467067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320620721.3U Expired - Lifetime CN203548947U (en) | 2013-10-09 | 2013-10-09 | Sleeve type regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203548947U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422981A (en) * | 2015-12-29 | 2016-03-23 | 杭州华惠阀门有限公司 | Regulating valve |
-
2013
- 2013-10-09 CN CN201320620721.3U patent/CN203548947U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422981A (en) * | 2015-12-29 | 2016-03-23 | 杭州华惠阀门有限公司 | Regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |
|
| CX01 | Expiry of patent term |