CN203880112U - Stop valve with elastic spiral clamping sleeve - Google Patents
Stop valve with elastic spiral clamping sleeve Download PDFInfo
- Publication number
- CN203880112U CN203880112U CN201420133361.9U CN201420133361U CN203880112U CN 203880112 U CN203880112 U CN 203880112U CN 201420133361 U CN201420133361 U CN 201420133361U CN 203880112 U CN203880112 U CN 203880112U
- Authority
- CN
- China
- Prior art keywords
- valve
- stop valve
- cutting ferrule
- stop
- elastic helix
- 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
- 230000007797 corrosion Effects 0.000 claims description 8
- 238000005260 corrosion Methods 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000004809 Teflon Substances 0.000 claims description 3
- 229920006362 Teflon® Polymers 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract description 10
- 238000007789 sealing Methods 0.000 abstract description 10
- 230000006837 decompression Effects 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- -1 chemical engineering Substances 0.000 abstract 1
- 238000003889 chemical engineering Methods 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- NICDRCVJGXLKSF-UHFFFAOYSA-N nitric acid;trihydrochloride Chemical compound Cl.Cl.Cl.O[N+]([O-])=O NICDRCVJGXLKSF-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Lift Valve (AREA)
Abstract
The utility model discloses a stop valve with an elastic spiral clamping sleeve. The stop valve comprises a valve body, a valve base, a valve clack, a valve rod, padding, a hinge pin, a valve deck, a valve rod nut and a hand wheel. The elastic spiral clamping sleeve is arranged between the lower portion, located in the valve body, of the valve rod and the valve clack. Defects of an existing valve are overcome by the combination of the flow-dividing decompression and cavitation-resistant principle and a sealing structure. The elastic spiral clamping sleeve is thoroughly used for enabling the stop valve to keep fully opened for a long time, the functions of sealing, decompressing, flow dividing, cavitation resisting, vibration preventing and noise lowing are achieved and an impingement attack to the valve rod by fluid is reduced. When the valve rod nut loses efficacy, the function of a safety valve is achieved. The impact-failure-resistant capacity of the stop valve are improved, noise of the stop valve is lowered, the service life of the stop valve is prolonged, and the requirements for the stop valve performance of various special fluid media can be met. The stop valve can meet the requirements of the fields of petroleum, chemical engineering, water conservancy and the like.
Description
Technical field
The utility model relates to a kind of stop valve, especially relates to a kind of stop valve with elastic helix cutting ferrule.
Background technique
Due in switching process between sealing surface frictional force little, more durable, Lift is little, easy to manufacture, easy to maintenance, is not only applicable to mesolow, and is applicable to high pressure.The closed principle of stop valve is that dependence valve thick stick pressure, fits tightly valve clack sealing surface and sealing surface of seat, stops medium circulation.Stop valve is only permitted medium one-way flow, has directivity when installation.The structure length of stop valve is greater than gate valve, and fluid resistance is large simultaneously, and when long-time running, sealing reliability is not strong.
In petrochemical industry, oil and energy industry, chloroazotic acid, sulfuric acid, hydrochloric acid, hydrofluoric acid and the various organic acid of various concentration, strong acid, strong oxidizer, and the highly basic organic solvent of various concentration and other corrosive gas, in the pipeline of liquid medium, stop valve is one of fluid control elements of extensive use the most, control the circulation of this special fluid, must there is corresponding survivability and avoid corrosion and the temporary impact of fluid to sealing surface to destroy.
But existing stop valve is in design course of working, seldom consider valve sealability in valve body in the time of standard-sized sheet, and the impingment corrosion that is subject in special fluid of valve rod, less for the research that the time that is held open is grown, thereby affect the performance and used life of valve, therefore, be just of great practical significance for a kind of stop valve with elastic helix cutting ferrule that keeps the normal work of valve under full-gear of development.
Summary of the invention
In order to overcome the deficiency of stop valve in background technique, the purpose of this utility model is to provide a kind of stop valve with elastic helix cutting ferrule, thereby reduce the cavitation that valve produces in the time of standard-sized sheet, noise, the corrosion of the special fluid that valve rod is subject to is impacted, change valve inner impact flow, improve the valve effect in working life.Valve rod nut played the effect of safety valve while inefficacy, and did not increase the heavy burden of valve.
The technical solution adopted in the utility model is:
The utility model comprises valve body, valve seat, flap, valve rod, filler, bearing pin, valve gap, Stem Mut and handwheel.Be positioned between the stem lower portion of valve body and flap elastic helix cutting ferrule is housed.
Described elastic helix cutting ferrule is that outer surface is the cylindrical body that helix structure, center have hole.
The external diameter of described elastic helix cutting ferrule is 2.44D, and internal diameter is 1.88D, and pitch is 1/6D, and D is and the stem diameter of the elastic helix cutting ferrule endoporus section of cooperation.
The material of described elastic helix cutting ferrule is corrosion resistant teflon.
The beneficial effect the utlity model has is:
The utility model is intended to some shortcomings by solve modern valve in conjunction with shunting decompression and anti-cavitation erosion principle and sealing configuration.Make full use of elastic helix cutting ferrule and make stop valve in the time that the long period keeps standard-sized sheet, play sealing, decompression shunting, prevents cavitation, reduces fluid to valve rod impingment corrosion, the effect of vibrationproof noise reduction.In the time that Stem Mut lost efficacy, play the effect of safety valve.Improve shock resistance damage capability and the noise of stop valve, increased the life-span of stop valve simultaneously, adapted to the demand of multiple special flow body medium to stop valve performance.
The utility model can meet the demand in the fields such as oil, chemical industry and water conservancy.
Brief description of the drawings
Fig. 1 is the structural representation of stop valve.
Fig. 2 is the plan view of Fig. 1 Elastic spiral cutting ferrule.
Fig. 3 is the plan view of Fig. 2.
Fig. 4 is elastic helix ferrule structure stereogram of the present utility model.
In Fig. 1: 1, valve body, 2, valve seat, 3, flap, 4, valve rod, 5, light-duty elastic helix cutting ferrule, 6, filler, 7, bearing pin, 8, valve gap, 9, Stem Mut, 10, handwheel.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, the utility model comprises valve body 1, valve seat 2, flap 3, valve rod 4, filler 6, bearing pin 7, valve gap 8, Stem Mut 9 and handwheel 10.Be positioned between valve rod 4 bottoms of valve body 1 and flap 3 elastic helix cutting ferrule 5 is housed.Drive handwheel 10 to drive the flap 3 and the elastic helix cutting ferrule 5 that are arranged in valve gap 8 and valve body 1 to move up and down through valve rod 4, elastic helix cutting ferrule passes through tolerance fit, be arranged on flap 3 tops to this section of valve rod of valve wide open, between flap 3 tops and elastic helix cutting ferrule 5 bottom surface of contact, seal by seal ring, flap 3 is realized the opening and closing of stop valve by moving up and down.
As shown in Figure 2, Figure 3, Figure 4, described elastic helix cutting ferrule 5 is that outer surface is the cylindrical body that helix structure, center have hole.
The external diameter of described elastic helix cutting ferrule 5 is 2.44D, and internal diameter is 1.88D, and pitch is 1/6D, and D is and the stem diameter of the elastic helix cutting ferrule endoporus section of cooperation.Selection of dimension can also be carried out feasibility adjustment according to practical application.
The material of described elastic helix cutting ferrule 5 is chosen cheap light-duty resistant material as far as possible.As corrosion resistant teflon.
working principle of the present utility model is:
When valve is gradually in opening process, medium is during by valve, due to elastic helix cutting ferrule 5, can make to reduce by the medium velocity of stop valve in the situation of little aperture, thereby play shunting decompression effect.In the time of valve wide open, reaching stable is, for the stop valve working long hours in opening, plays sealing, and decompression shunting, prevents cavitation, reduces fluid to valve rod impingment corrosion, the effect that anti-vibration and noise is made an uproar, thus extend working life of valve.In the time that Stem Mut lost efficacy, play the effect of safety valve.And adapt to the demand of multiple special flow body medium to stop valve performance.
Claims (4)
1. with a stop valve for elastic helix cutting ferrule, comprise valve body (1), valve seat (2), flap (3), valve rod (4), filler (6), bearing pin (7), valve gap (8), Stem Mut (9) and handwheel (10); It is characterized in that: be positioned between valve rod (4) bottom of valve body (1) and flap (3) elastic helix cutting ferrule (5) is housed.
2. a kind of stop valve with elastic helix cutting ferrule according to claim 1, is characterized in that: described elastic helix cutting ferrule (5) be outer surface be helix structure, center has the cylindrical body in hole.
3. a kind of stop valve with elastic helix cutting ferrule according to claim 1, it is characterized in that: the external diameter of described elastic helix cutting ferrule (5) is 2.44D, internal diameter is 1.88D, and pitch is 1/6D, and D is and the stem diameter of the elastic helix cutting ferrule endoporus section of cooperation.
4. a kind of stop valve with elastic helix cutting ferrule according to claim 1, is characterized in that: the material of described elastic helix cutting ferrule (5) is corrosion resistant teflon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420133361.9U CN203880112U (en) | 2014-03-24 | 2014-03-24 | Stop valve with elastic spiral clamping sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420133361.9U CN203880112U (en) | 2014-03-24 | 2014-03-24 | Stop valve with elastic spiral clamping sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203880112U true CN203880112U (en) | 2014-10-15 |
Family
ID=51680610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420133361.9U Expired - Lifetime CN203880112U (en) | 2014-03-24 | 2014-03-24 | Stop valve with elastic spiral clamping sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203880112U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867734A (en) * | 2014-03-24 | 2014-06-18 | 浙江理工大学 | Check valve with elastic spiral clamping sleeve |
-
2014
- 2014-03-24 CN CN201420133361.9U patent/CN203880112U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867734A (en) * | 2014-03-24 | 2014-06-18 | 浙江理工大学 | Check valve with elastic spiral clamping sleeve |
| CN103867734B (en) * | 2014-03-24 | 2016-03-09 | 浙江理工大学 | With the stop valve of elastic helix cutting ferrule |
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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: 20141015 Effective date of abandoning: 20160309 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |