CN203131063U - Low-resistance valve capable of controlling flow accurately - Google Patents
Low-resistance valve capable of controlling flow accurately Download PDFInfo
- Publication number
- CN203131063U CN203131063U CN 201320024691 CN201320024691U CN203131063U CN 203131063 U CN203131063 U CN 203131063U CN 201320024691 CN201320024691 CN 201320024691 CN 201320024691 U CN201320024691 U CN 201320024691U CN 203131063 U CN203131063 U CN 203131063U
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- valve
- flow
- flap
- accurately
- fluid
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Abstract
The utility model discloses a low-resistance valve capable of controlling flow accurately, and belongs to the technical field of fluid transportation. A valve rod 3 is combined with a spiral micrometer structure 4 so that valve opening can be displayed accurately and controlled by means of the principle of a spiral micrometer. A valve body 1 controls fluid to flow along a C-shaped flow pass, and the fluid is distributed in a streamline shape, so that the flow pass is smoother. The upper portion of a valve clack 2 is in a rectangle shape. The lower portion of the valve clack 2 is in an arc shape. The valve clack 2 and the valve body 1 are sealed through semisphere-shaped sealing grooves 6. The low-resistance valve capable of controlling the flow accurately can overcome the shortcomings existing in the prior art, not only can control the flow accurately, but also has the advantages of being convenient to switch on, accurate in control, free from leakage, and small in pressure drop.
Description
Technical field
The present invention relates to a kind of improved valve, specifically is a kind of lower resistance, the valve that can accurately control flow, belongs to fluid conveying technology field.
Background technique
Valve is widely used in production fields such as oil, chemical industry, metallurgy, electric power, water treatment, mainly is the switching of controlling fluid.In every year, valve manufacturer and Design Research Unit are all in the research of carrying out novel valve and design, but existing valve is usually as one wishes not to the utmost aspect accurate control flow, exists following deficiency.
(1) control of flow is that aperture by valve decides, and can quantitatively determine the aperture of valve and the relation of flow according to the size of valve body fluid passage, and existing valve is the aperture of control valve accurately, thus the size of control flow.
(2) existing valve fluid passage is generally horizontal S type, when fluid is entered by valve inlet, heaps in valve easily, influences the work effect of valve, makes that simultaneously the pressure drop in the valve body is very big, is unfavorable for the efficient operation of valve.
(3) in the pipeline and equipment of some big flux, fluid is very big to the impact force of flap, and flap is easy to be worn.
(4) in some sealings and disconnect request high pipeline and equipment, because accompanying some solid impurities in the fluid inevitably, these small granule foreigns are clipped between the sealing surface of valve seat and flap, cause valve can't cut or because the sealing surface that worn and torn of unlatching repeatedly causes leakage, so the sealing of flap and valve body also is a great problem.
(5) roughness in the valve body influence resistance of valve interior surface convection cell, makes valve body internal drop increase.
Summary of the invention
The present invention can solve above-mentioned existing in prior technology deficiency, and a kind of valve that can accurately control flow is provided, and this valve can not only accurately be controlled flow, the advantage that also have the convenience of opening, control accurately, do not leak, pressure drop is little.
In order to achieve the above object, the present invention takes following technological scheme:
A kind of lower resistance, can accurately control the valve of flow, mainly formed by valve body 1, flap 2, valve rod 3, spiral micro-measuring structure 4, fastening piece 5, it is characterized in that: utilize spiral dial micrometer principle, can reach the effect of accurate demonstration and control valve aperture, valve rod 3 and spiral micro-measuring structure 4 combine, when adjusting flap 2 increases flow, at first spiral micro-measuring structure 4 is up adjusted, when flap 2 is adjusted to approximate location, the 4 past downward modulations of spiral micro-measuring structure, stop operating after sending sound, can accurately show and the control valve aperture; When regulating flap 2 flow being reduced, at first the spiral micro-measuring structure up is adjusted to the top, when valve switch is adjusted to approximate location, spiral micro-measuring structure (4) toward downward modulation, is stopped operating after sending sound, can accurately show and the control valve aperture.
Hemisphere type seal groove 6 is adopted in the sealing of flap 2 and valve body 1.
After valve body 1 casting was finished, retrofit was carried out on valve body 1 inner surface, and processing roughness maximum value is 3.2 μ m, can effectively reduce the resistance of valve interior surface convection cell.
The present invention compares with known technology, can comment as follows:
(1) valve of the present invention uses spiral micrometer principle in the adjusting of valve opening, valve rod and spiral micro-measuring structure are combined, and the accurate aperture of control valve, thus accurately control the flow of fluid.This kind method principle is simple, aperture that can not only regulating valve, and when flow reaches desired value, can the position of valve rod accurately be controlled unlikely generation slippage by the engaging of valve rod and spiral micro-measuring structure.
(2) the existing flow dead of horizontal S type runner of valve has in the past been eliminated in the C type fluid passage of valve of the present invention, and it is more unobstructed to make fluid pass through the runner of valve, and fluid is streamlined distribution, reduces the loss of fluid; And the existence in horizontal S type flow passage dead band in the past makes fluid be enriched in this in a large number, and valve body is had certain wearing and tearing.
(3) valve flap of the present invention top is rectangle, and the bottom is arc, adopts the structure of buffering, can effectively reduce fluid to the impact of baffle plate, can provide broader fluid passage simultaneously.
(4) the hemisphere type seal groove is adopted in the sealing of valve flap of the present invention and valve body, the sealing of flap and valve body is the focus of research always, owing to exist some solid impurity in the fluid, cause valve can't cut easily or cause leakage because of the sealing surface that worn and torn of unlatching repeatedly, and employing hemisphere type seal groove, because the special slyness of ball-type, make valve be more prone to when cutting off, and fluid or impurity in the seal groove arrange easily, the more important thing is, when valve cuts off, flap contacts with valve seat, the whole hemisphere face of hemisphere type seal groove is all stressed, makes stressed being evenly distributed, and seal groove is not easy to be worn like this.
(5) valve of the present invention adds man-hour at valve inner, and retrofit is carried out on the surface, and by facts have proved, processing roughness maximum value is 3.2 μ m, can effectively reduce the resistance of valve interior surface convection cell.
Description of drawings
Fig. 1 is a kind of lower resistance, the structural representation that can accurately control the valve of flow.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Valve fluid of the present invention is along C type flow passage, and runner is more unobstructed, and fluid is streamlined distribution; Flap top is rectangle, and the bottom is arc, can effectively reduce fluid to the impact of baffle plate; The hemisphere type seal groove is adopted in the sealing of flap and valve body; After the valve body casting was finished, retrofit was carried out on valve body 1 inner surface, and processing roughness maximum value is 3.2 μ m; Valve rod and spiral micro-measuring structure combine, and when the adjusting flap increases flow, at first the spiral micro-measuring structure are up adjusted, when flap is adjusted to approximate location, the spiral micro-measuring structure toward downward modulation, is stopped operating after sending sound, can accurately show and the control valve aperture; When regulating flap flow being reduced, at first the spiral micro-measuring structure up is adjusted to the top, when valve switch is adjusted to approximate location, the spiral micro-measuring structure toward downward modulation, is stopped operating after sending sound, can accurately show and the control valve aperture.
Claims (5)
1. lower resistance, can accurately control the valve of flow, mainly by valve body (1), flap (2), valve rod (3) is formed, it is characterized in that: utilize spiral dial micrometer principle, can pass through adjusting color screw micro-measuring structure (4), come the control valve aperture, valve rod (3) and spiral micro-measuring structure (4) combine, when adjusting flap (2) increases flow, at first spiral micro-measuring structure (4) is up adjusted, when flap (2) when being adjusted to approximate location, spiral micro-measuring structure (4) toward downward modulation, is stopped operating after sending sound, can accurately show and the control valve aperture; When regulating flap (2) flow being reduced, at first the spiral micro-measuring structure up is adjusted to the top, when valve switch is adjusted to approximate location, spiral micro-measuring structure (4) toward downward modulation, is stopped operating after sending sound, can accurately show and the control valve aperture.
A kind of lower resistance according to claim 1, can accurately control the valve of flow, it is characterized in that: valve body (1) fluid is along C type flow passage, and fluid is streamlined distribution.
A kind of lower resistance according to claim 1, can accurately control the valve of flow, it is characterized in that: flap (2) top is rectangle, and the bottom is arc.
A kind of lower resistance according to claim 1, can accurately control the valve of flow, it is characterized in that: hemisphere type seal groove (6) is adopted in the sealing of flap (2) and valve body (1).
A kind of lower resistance according to claim 1, can accurately control the valve of flow, it is characterized in that: after valve body (1) casting was finished, the inner surface Machining roughness of valve body (1) maximum value was 3.2 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320024691 CN203131063U (en) | 2013-01-17 | 2013-01-17 | Low-resistance valve capable of controlling flow accurately |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320024691 CN203131063U (en) | 2013-01-17 | 2013-01-17 | Low-resistance valve capable of controlling flow accurately |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203131063U true CN203131063U (en) | 2013-08-14 |
Family
ID=48939043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320024691 Expired - Lifetime CN203131063U (en) | 2013-01-17 | 2013-01-17 | Low-resistance valve capable of controlling flow accurately |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203131063U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075528A (en) * | 2013-01-17 | 2013-05-01 | 北京化工大学 | Low-resistance valve capable of precisely controlling flow rate |
-
2013
- 2013-01-17 CN CN 201320024691 patent/CN203131063U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075528A (en) * | 2013-01-17 | 2013-05-01 | 北京化工大学 | Low-resistance valve capable of precisely controlling flow rate |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130814 |