CN206555556U - One kind surges to lift closes screw down nonreturn valve soon - Google Patents
One kind surges to lift closes screw down nonreturn valve soon Download PDFInfo
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- CN206555556U CN206555556U CN201720245833.3U CN201720245833U CN206555556U CN 206555556 U CN206555556 U CN 206555556U CN 201720245833 U CN201720245833 U CN 201720245833U CN 206555556 U CN206555556 U CN 206555556U
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- valve
- bonnet
- hydraulic cylinder
- filler
- nut
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Abstract
One kind surges to lift closes screw down nonreturn valve, including valve body, flap, valve rod, spirotallic gasket, bonnet, stud, nut, filler, support, position indicating switch catch, thin nut, coupling band, hydraulic cylinder, holding screw, hold-down grid, filler pressing sleeve, limit switch soon；The utility model realizes the automation of check-valves quick acting by the hydraulic cylinder with electromagnetic sensor, has saved human cost, convenient management；The utility model indicates switch catch and limit switch by setting, and realizes the defencive function of valve opening and closing stroke, it is ensured that stabilization of the check-valves on pipeline is used；The contact position of hold-down grid and filler pressing sleeve is sphere, counteracts valve rod issuable side force in motion process, further ensure that the smooth action of check-valves.
Description
Technical field
The utility model is related to valve field, and in particular to one kind surges to lift closes screw down nonreturn valve soon.
Background technology
Stop valve and check-valves etc. can be generally equipped with simultaneously on high-pressure boiler and pipeline, but one can not be used simultaneously
And many shortcomings are there are, because the keying speed of common stop valve, check-valves etc. is slow, the fast shut-off for not reaching operating mode is opened and closed
It is required that, it is impossible to medium is blocked in time, there is very big hidden danger to boiler and pipeline.
Particularly on the production pipeline in power station, check-valves as opened and closed the accident it is possible that great not in time, at present
Still there is partial high pressure pipeline to use the mechanical check-valves manually started on the high-pressure boiler and pipeline in power station, work as pipeline
During pressure instability, it is impossible to timely close check-valves, the electromagnetic valve of use is again often because stroke can not be spacing and causes
The problems such as executing agency's short life.
Utility model content
The utility model surges to lift for above-mentioned the deficiencies in the prior art there is provided one kind closes screw down nonreturn valve soon, adopts
Reached quickly to open and close with the form of surging and required, and ensure sealed tightness, be effectively protected pipeline and boiler and annex is set
Apply, valve carries function of automatically cutting off, will not make that stroke is excessive in use and generation problem, so as to reach on pipeline
The effect that uses of stabilization.
To solve problems of the prior art, the concrete technical scheme of use is：
One kind surges to lift closes screw down nonreturn valve, including valve body, flap, valve rod, spirotallic gasket, bonnet, stud, spiral shell soon
Mother, filler, support, position indicating switch catch, thin nut, coupling band, hydraulic cylinder, holding screw, hold-down grid, filler pressure
Set, limit switch；
The bonnet is installed on the upper surface of valve body by stud, nut, and spirotallic gasket is located between bonnet and valve body；Institute
State pedestal lower end face to install on the upper surface of bonnet by stud, nut, pedestal upper end face is provided with hydraulic cylinder, mid-stent peace
Equipped with two limit switches up and down；Described hold-down grid one end by stud, nut be arranged on bonnet on, hold-down grid it is another
Side pressure is tightly located at filler pressing sleeve, filler in bonnet；The position indicating switch catch is by be disposed thereon two up and down
Thin nut is fixed on valve rod, and holding screw fixes two thin nuts on valve rod；The valve rod is sequentially passed through from top to bottom to be filled out
Expect pressing plate, filler pressing sleeve, filler, bonnet, and flap is installed in its end, the upper end of valve rod passes through coupling band and hydraulic cylinder
Cylinder rod is connected, and coupling band upper and lower ends face is separately fixed at valve rod upper end and the cylinder rod lower end of hydraulic cylinder by two thin nuts.
It is preferred that scheme, the external part of instruction switch catch is through the space in the middle of two limit switches up and down.
Further preferred scheme, the hydraulic cylinder is the hydraulic cylinder with electromagnetic sensor.
Further preferred scheme, the contact position of the hold-down grid and filler pressing sleeve is sphere.
A kind of lifting of surging closes the implementation process of screw down nonreturn valve and is soon：
When pipe-line system detects return difference pressure less than supply pressure, hydraulic cylinder is sent to by signal, makes its automatic
It is quick to open；When pipe-line system detects pressure instability, hydraulic cylinder is sent to by signal, valve is done closing motion, from
And reach the requirement of protection boiler and pipeline；Valve rod drives during up and down motion and indicates that switch catch moves up and down, when
When valve rod travel is more than the stroke that two limit switches are initially set, limit switch sends a signal to hydraulic cylinder, stops it, from
And ensure that the effect that stabilization of the valve on pipeline is used.
By using such scheme, one kind of the present utility model surges to lift closes screw down nonreturn valve soon, and its technique effect exists
In：
1st, the utility model realizes the automation of check-valves quick acting by the hydraulic cylinder with electromagnetic sensor,
Human cost, convenient management are saved.
2nd, the utility model indicates switch catch and limit switch by setting, and realizes the protection work(of valve opening and closing stroke
Can, it is ensured that stabilization of the check-valves on pipeline is used.
3rd, the contact position of hold-down grid and filler pressing sleeve of the present utility model is sphere, counteracts valve rod in motion process
Issuable side force, further ensure that the smooth action of check-valves.
Brief description of the drawings
Fig. 1 is the cross-sectional view that screw down nonreturn valve is closed in a kind of lifting of surging of the utility model soon.
Embodiment
To make the purpose of this utility model, technical scheme and advantage of greater clarity, with reference to instantiation and join
According to accompanying drawing, the utility model is further described.It should be understood that these descriptions are merely illustrative, and it is not intended to limit
Scope of the present utility model.In addition, in the following description, the description to known features and technology is eliminated, it is unnecessary to avoid
Obscure concept of the present utility model in ground.
As shown in Figure 1：Screw down nonreturn valve is closed in one kind lifting of surging soon, including valve body 1, flap 2, valve rod 3, spirotallic gasket 4,
Bonnet 5, stud 6, nut 7, filler 8, support 9, position indicating switch catch 10, thin nut 11, coupling band 12, hydraulic cylinder 13,
Holding screw 14, hold-down grid 15, filler pressing sleeve 16, limit switch 17；
The bonnet 5 is installed on the upper surface of valve body 1 by stud 6, nut 7, and spirotallic gasket 4 is located at bonnet 5 and valve body 1
Between；The lower surface of support 9 is installed on the upper surface of bonnet 5 by stud 6, nut 7, and the upper surface of support 9 is provided with hydraulic pressure
Two limit switches 17 above and below being provided with the middle part of cylinder 13, support 9；Installed by stud 6, nut 7 described one end of hold-down grid 15
On bonnet 5, the other end of hold-down grid 15 compresses the filler pressing sleeve 16 being located in bonnet 5, filler 8；The position instruction is opened
Close catch 10 to be fixed on valve rod 3 by two thin nuts 11 up and down being disposed thereon, holding screw 14 fixes two thin spiral shells
Mother 11 is on valve rod 3；The valve rod 3 sequentially passes through hold-down grid 15, filler pressing sleeve 16, filler 8, bonnet 5 from top to bottom, and
Its end is provided with flap 2, and the upper end of valve rod 3 is connected by coupling band 12 with the cylinder rod of hydraulic cylinder 13, and coupling band is two about 12
End face is separately fixed at the upper end of valve rod 3 and the cylinder rod lower end of hydraulic cylinder 13 by two thin nuts 11；
Space of the external part for indicating switch catch 10 through two centres of limit switches 17 up and down；
The hydraulic cylinder 13 is the hydraulic cylinder with electromagnetic sensor；
The contact position of the hold-down grid 15 and filler pressing sleeve 16 is sphere.
A kind of lifting of surging closes the implementation process of screw down nonreturn valve and is soon：
When pipe-line system detects return difference pressure less than supply pressure, hydraulic cylinder 13 is sent to by signal, makes it certainly
Dynamic quick unlatching；When pipe-line system detects pressure instability, hydraulic cylinder 13 is sent to by signal, valve is done closing dynamic
Make, so as to reach the requirement of protection boiler and pipeline；Valve rod 3 drives during up and down motion and indicates that switch catch 10 is done
Lower motion, when the stroke of valve rod 3 is more than the stroke that two limit switches 17 are initially set, limit switch 17 sends a signal to hydraulic pressure
Cylinder 13, stops it, so as to ensure that the effect that stabilization of the valve on pipeline is used.
Preferred embodiment of the present utility model is the foregoing is only, not to limit protection model of the present utility model
Enclose, it is all within spirit of the present utility model and principle, any modification for being made, equivalent substitution, it is all contained in the utility model
Protection domain within.
Claims (4)
1. one kind is surged, screw down nonreturn valve is closed in lifting soon, it is characterised in that：Including valve body（1）, flap（2）, valve rod（3）, winding
Pad（4）, bonnet（5）, stud（6）, nut（7）, filler（8）, support（9）, position indicating switch catch（10）, thin nut
（11）, coupling band（12）, hydraulic cylinder（13）, holding screw（14）, hold-down grid（15）, filler pressing sleeve（16）, limit switch
（17）；
The bonnet（5）Pass through stud（6）, nut（7）Valve body is installed（1）Upper surface on, spirotallic gasket（4）Positioned at bonnet
（5）And valve body（1）Between；The support（9）Lower surface passes through stud（6）, nut（7）Bonnet is installed（5）Upper surface on, branch
Frame（9）Upper surface is provided with hydraulic cylinder（13）, support（9）Middle part be provided with above and below two limit switches（17）；The filler pressure
Plate（15）One end passes through stud（6）, nut（7）Installed in bonnet（5）On, hold-down grid（15）The other end compress be located at bonnet
（5）In filler pressing sleeve（16）, filler（8）；The position indicating switch catch（10）Pass through two up and down be disposed thereon
Thin nut（11）It is fixed on valve rod（3）On, holding screw（14）Fix two thin nuts（11）In valve rod（3）On；The valve rod
（3）Hold-down grid is sequentially passed through from top to bottom（15）, filler pressing sleeve（16）, filler（8）, bonnet（5）, and be provided with its end
Flap（2）, valve rod（3）Upper end pass through coupling band（12）With hydraulic cylinder（13）Cylinder rod be connected, coupling band（12）Upper and lower ends
Face is by two thin nuts（11）It is separately fixed at valve rod（3）Upper end and hydraulic cylinder（13）Cylinder rod lower end.
2. one kind according to claim 1 is surged, screw down nonreturn valve is closed in lifting soon, it is characterised in that：It is described to indicate switch gear
Piece（10）External part through up and down two limit switches（17）Middle space.
3. one kind according to claim 1 is surged, screw down nonreturn valve is closed in lifting soon, it is characterised in that：The hydraulic cylinder（13）
For the hydraulic cylinder with electromagnetic sensor.
4. one kind according to claim 1 is surged, screw down nonreturn valve is closed in lifting soon, it is characterised in that：The hold-down grid
（15）With filler pressing sleeve（16）Contact position be sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720245833.3U CN206555556U (en) | 2017-03-14 | 2017-03-14 | One kind surges to lift closes screw down nonreturn valve soon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720245833.3U CN206555556U (en) | 2017-03-14 | 2017-03-14 | One kind surges to lift closes screw down nonreturn valve soon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206555556U true CN206555556U (en) | 2017-10-13 |
Family
ID=60365251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720245833.3U Active CN206555556U (en) | 2017-03-14 | 2017-03-14 | One kind surges to lift closes screw down nonreturn valve soon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206555556U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838593A (en) * | 2019-02-13 | 2019-06-04 | 大唐绥化热电有限公司 | Thermoelectricity steam turbine hydrodynamic quick closing valve exhaust check valve and quick closing valve method |
-
2017
- 2017-03-14 CN CN201720245833.3U patent/CN206555556U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838593A (en) * | 2019-02-13 | 2019-06-04 | 大唐绥化热电有限公司 | Thermoelectricity steam turbine hydrodynamic quick closing valve exhaust check valve and quick closing valve method |
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