CN206918277U - A kind of spring Fluorine-lined safety valve and its flap component - Google Patents
A kind of spring Fluorine-lined safety valve and its flap component Download PDFInfo
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- CN206918277U CN206918277U CN201720815350.2U CN201720815350U CN206918277U CN 206918277 U CN206918277 U CN 206918277U CN 201720815350 U CN201720815350 U CN 201720815350U CN 206918277 U CN206918277 U CN 206918277U
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Abstract
A kind of spring Fluorine-lined safety valve and its flap component.Mainly solve existing spring Fluorine-lined safety valve bellows easily to reveal, and the problem of expensive cost is high.It is characterized in that：Flap component includes flap, bellows, mounting disc, and shaping is integrally machined using fluoroplastics.It the advantage is that flap component is integrally machined shaping, for integral structure relative to split-type structural, absolute gapless, sealing effectiveness is more preferable, ensures zero leakage；Fluoroplastics are used simultaneously, it not only has good decay resistance, and cheap, greatly reduces manufacturing cost.
Description
Technical field
A kind of spring Fluorine-lined safety valve is the utility model is related to, more particularly to a kind of spring Fluorine-lined safety valve and its valve
Valve component.
Background technology
Safety valve is that opening and closing element is in normally off under by external force effect, when the pressure medium rise in equipment or pipeline is super
When crossing setting, by outside system discharge medium prevent the pressure medium in pipeline or equipment from exceeding the particular usage valve of specified value
Door, safety valve belongs to automatic valve class, is mainly used in boiler, on pressure vessels and pipes, control pressure is no more than setting, to people
Body safety and equipment have run important protective effect.
In some industries, raw material, processing medium and finished product in production process, such as saturated brine, moist chlorine, salt
Acid, nitric acid, sulfuric acid etc. have an extremely strong chemical corrosivity, and the corrosion resistance of safety valve is particularly important.
A kind of anticorrosive lining safety valve of Chinese utility model patent Shen Qing Publication（CN 102518844）, including valve
Body, valve seat, Disc holder, flap, bellows component, to avoid being corroded, valve seat, body cavity surface be lined with one layer it is corrosion resistant
Nonmetallic materials, flap, Disc holder, bellows component are then all using corrosion resistant metals such as Hastelloy or monel metals
Material is made.
Wherein, bellows component is welded by bellows top connection, bellows, bellows lower contact, and welding difficulty is too
Greatly, weld is also easy to leakage problem occur, and the Hastelloy or illiteracy that flap, Disc holder, bellows component use in addition are
The corrosion resistant metal materials such as your alloy material, expensive cost are high.
Utility model content
In order to overcome the shortcomings of background technology, the utility model provides a kind of spring Fluorine-lined safety valve and its flap group
Part, solve existing spring Fluorine-lined safety valve bellows and easily reveal, and the problem of expensive cost is high.
Technical scheme used by the utility model：A kind of flap component, including flap, the upper surface of the flap are set
Bellows, the bellows upper end set mounting disc；The flap, bellows, mounting disc are integrally machined shaping using fluoroplastics.
The flap outer ring is provided with the external screw thread for being used for installing Disc holder.
Annular sealing surface of the lower surface of the flap formed with protrusion.
A kind of spring Fluorine-lined safety valve, including valve body, valve seat, bonnet, valve rod, flap component, guide sleeve, Disc holder；
The guiding is set between valve body and bonnet, and the valve rod withstands flap component, and the valve rod peripheral hardware through guide sleeve
It is equipped with the elastic parts for driving valve rod downward；The valve body is provided with one layer of Fluorine-lined layer with valve base cavity surface；The flap component
Shaping, including flap, bellows, mounting disc are integrally machined using fluoroplastics, the lower surface of the flap can match somebody with somebody with valve base sealing
Close, the mounting disc is fixed by valve body and guide sleeve, and the bellows is between mounting disc and flap；The recoil
Disk uses fluoroplastics machine-shaping, and is fixedly mounted on flap.
The flap outer ring is provided with external screw thread, and the Disc holder is correspondingly provided with internal thread, and is coordinated by screw thread and be fixed on
On flap.
Annular sealing surface of the lower surface of the flap formed with protrusion, the annular sealing surface coordinate with valve base sealing.
Flap upper surface center is provided with resettlement groove, and the jacking block coordinated with valve stem end is provided with the resettlement groove.
The valve body and valve seat are in integral structure.
The beneficial effects of the utility model are：Using above scheme, flap component is integrally machined shaping, integral structure phase
For split-type structural, absolute gapless, sealing effectiveness is more preferable, ensures zero leakage；Fluoroplastics are used simultaneously, it not only has very
Good decay resistance, and it is cheap, greatly reduce manufacturing cost.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment spring Fluorine-lined safety valve.
Fig. 2 is the enlarged diagram at A in Fig. 1.
Fig. 3 is the structural representation of the utility model embodiment flap component.
Fig. 4 is the structural representation of the utility model embodiment blank.
Fig. 5 is the work flow structural representation of the utility model embodiment flap component.
1- valve bodies in figure, 2- valve seats, 3- bonnets, 4- valve rods, 5- flap components, 51- flaps, 511- external screw threads, 512- rings
Shape sealing surface, 513- resettlement grooves, 52- bellowss, 53- mounting discs, 6- guide sleeves, 7- Disc holders, 8- jacking blocks, 91- flap blanks
Portion, 92- bellows blanks portion, 93- mounting disc blanks portion, 94- central channels, 10- Fluorine-lined layers, 11- adjusting rings, 12- adjusting screws,
13-O type sealing rings, 14- springs, the spring bases of 15- first, 16- second spring seats, 17- Adjusting bolt Adjusting screws.
Embodiment
The utility model embodiment is described further below in conjunction with the accompanying drawings：
As Figure 1-3, a kind of spring Fluorine-lined safety valve, including valve body 1, valve seat 2, bonnet 3, valve rod 4, flap component
5th, guide sleeve 6, Disc holder 7；The guide sleeve 6 is arranged between valve body 1 and bonnet 3, and the valve rod 4 is withstood through guide sleeve 6
Flap component 5, and it is provided with the elastic parts for driving valve rod 4 downward outside the valve rod 4；
The valve body 1 is provided with one layer of Fluorine-lined layer 10 with the surface of internal cavity of valve seat 2, and valve body is provided with dovetail groove, consolidates Fluorine-lined layer
It is scheduled on valve body, prevents from coming off；The flap component 5 is integrally machined shaping using fluoroplastics, including flap 51, bellows 52,
Mounting disc 53, the lower surface of the flap 51 can seal with valve seat 2 to be coordinated, and the mounting disc 53 is pressed by valve body 1 and guide sleeve 6
Fasten, the bellows 52 is between mounting disc 53 and flap 51；The Disc holder 7 uses fluoroplastics machine-shaping, and
It is fixedly mounted on flap 51.
Wherein, Fluorine-lined layer 10 protects valve body 1 not to be corroded with valve seat 2, and the flap component 5, Disc holder 7 are moulded using fluorine
Expect machine-shaping, itself just there is preferable decay resistance, while the mounting disc 53 by flap component 5 and bellows 52
Realize that sealing further protects valve rod 4, guide sleeve 6, bonnet 3 not by corrosion impact so that it is stronger that it can adapt to corrosivity
Working environment.
Flap component 5 is integrally machined shaping using fluoroplastics, and integral structure is relative to split-type structural, definitely continuously
Gap, sealing effectiveness is more preferable, ensures zero leakage；Fluoroplastics are used simultaneously, it not only has good decay resistance, and price
Cheaply, manufacturing cost is greatly reduced.
As Figure 2-3, the outer ring of flap 51 is provided with external screw thread 511, and the Disc holder 7 is correspondingly provided with internal thread, and
Coordinated by screw thread and be fixed on flap 51, the mounting means coordinated by screw thread, simple in construction, easy to assembly, fixation,
When safety valve is opened, medium is formed the reaction force acted on Disc holder 7, help flap 51 to reach enough when opening
Lift.
As Figure 2-3, annular sealing surface 512 of the lower surface of the flap 51 formed with protrusion, the ring packing
Face 512 coordinates with the sealing of valve seat 2, ensures sealing effectiveness, is easy to attrition process.
As Figure 2-3, the upper surface center of flap 51 is provided with resettlement groove 513, is provided with the resettlement groove 513 and valve
The jacking block 8 that the end of bar 4 coordinates, avoids valve rod 4 from directly being contacted with flap 51, further protects flap 51 and valve rod 4 without damage.
As shown in figure 1, the valve body 1 and valve seat 2 are in integral structure, integral structure is compared to split-type structural, no
Only intensity is more preferable, and simplifies assembling.
As shown in Figure 1-2, adjusting ring 11 is connected with the outer wall of valve seat 2, the upper end of adjusting ring 11 is provided with close to inner wall position
Chamfered groove, the upper end of adjusting ring 11 can coordinate close to the chamfering groove of madial wall at the initial stage that safety valve is opened with Disc holder, make medium shape
Into the reaction force acted on Disc holder, flap is helped to reach enough Lifts when opening.
Wherein, the side wall of valve body 1 stretches into the adjusting screw 12 coordinated with adjusting ring 11, realizes the micro- of adjusting ring 11
Adjust, by changing adjusting ring upper-lower position, adjustable safety valve discharge pressure, blow pressure.And adjusting screw 12 is matched somebody with somebody with valve body 1
The outer ring of conjunction is provided with O-ring seal 13, and guarantee will not be revealed, and ensures sealing.
As shown in figure 1, the elastic parts includes spring 14, the first spring base 15, second spring seat 16, and it is set in valve
On bar 4, and first spring base 15, second spring seat 16 are separately positioned on the both ends of spring 11, and the valve rod 4 is externally provided with and the
The positive stop lug boss that the axial limiting of two spring base 16 coordinates；First spring base 15 offsets with the bottom of bonnet 3, simple in construction, dress
Method of completing the square.
Further, the bonnet 3 is provided with adjustment swivel nut 17, and the adjustment swivel nut 17 coordinates with the screw thread of bonnet 3, described
First spring base 15 offsets with adjustment swivel nut 17, can adjust the elastic force of spring 14 by adjusting swivel nut 17, adjust to flap
The pretightning force of component 5, controllability are more preferable.
The guide sleeve 6 and valve rod 4 coordinate, and guide sleeve helps stem guiding, the centre of location.
In addition, the processing method of above-mentioned flap component, comprises the following steps：
First, blank is molded：Fluoroplastics material by mould pressing process formed blank, the blank as shown in figure 4, formed with point
Flap blank portion 91 not corresponding with flap, bellows, mounting disc, bellows blank portion 92, mounting disc blank portion 93, and install
Disk blank portion 93 is centrally formed with central channel 94 with bellows blank portion 92；
2nd, flap is processed：Positioning is fixed by clamping mounting disc blank portion 93, then passes through mach mode pair
Flap blank portion 91 carries out turning, and car goes out the external screw thread 511 of flap outer ring and the annular sealing surface 512 of flap lower surface；
3rd, mounting disc is processed：Positioning is fixed by coordinating with the screw thread of external screw thread 511 of flap, is then added by machine
The mode of work carries out turning to the surface in mounting disc blank portion 93, makes its surface smooth, ensures sealing effectiveness；
4th, bellows is processed：Positioning is fixed by coordinating with the screw thread of external screw thread 511 of flap, is then added by machine
The mode of work carries out turning to bellows blank portion 92, the inwall of outer wall and the central channel 94 in bellows blank portion 92 formed according to
The annular groove of minor tick arrangement, forms bellows structure；
5th, at flap upper surface center, car goes out resettlement groove 513；
6th, sealing surface is ground：The annular sealing surface 512 of flap is ground, makes its surface smooth, ensures sealing effect
Fruit.
Wherein, in step 1, mould pressing process in mould is specified by adding fluoroplastics, by heated（It is heated to 330
℃）Compression makes fluoroplastics melt-flow, and required shape is formed full of whole mold cavity, is fixed by being cooled to normal temperature,
Open mould and remove blank, technique is simple, is easy to batch micro operations；
In step 2, the external screw thread 511 of flap is first processed, is applied not only to the installation of Disc holder, and after can be used in
Positioning during continuous processing is fixed, and ensures that processing is more accurate；
Step 2: three, four, five are processed using mach mode, not only machining accuracy is high, further ensures
Sealing property, and it is easy to process, and technique is simple, is easy to batch micro operations.
Embodiment is not construed as the limitation to utility model, but it is any be based on spiritual improvements introduced of the present utility model,
All should be within the scope of protection of the utility model.
Claims (8)
1. a kind of flap component, including flap（51）, the flap（51）Upper surface set bellows（52）, the bellows
（52）Upper end sets mounting disc（53）；
It is characterized in that：The flap（51）, bellows（52）, mounting disc（53）Shaping is integrally machined using fluoroplastics.
2. flap component according to claim 1, it is characterised in that：The flap（51）Outer ring, which is provided with, to be used to install recoil
The external screw thread of disk（511）.
3. flap component according to claim 1, it is characterised in that：The flap（51）Lower surface formed with protrusion
Annular sealing surface（512）.
4. a kind of spring Fluorine-lined safety valve, including valve body（1）, valve seat（2）, bonnet（3）, valve rod（4）, flap component（5）, lead
To set（6）, Disc holder（7）；The guide sleeve（6）It is arranged on valve body（1）With bonnet（3）Between, the valve rod（4）Through guiding
Set（6）Withstand flap component（5）, and the valve rod（4）Outer be provided with drives valve rod（4）Downward elastic parts；
It is characterized in that：The valve body（1）With valve seat（2）Surface of internal cavity is provided with one layer of Fluorine-lined layer（10）；The flap component（5）
Shaping, including flap are integrally machined using fluoroplastics（51）, bellows（52）, mounting disc（53）, the flap（51）Lower end
Face energy and valve seat（2）Sealing coordinates, the mounting disc（53）Pass through valve body（1）With guide sleeve（6）It is fixed, the bellows
（52）Positioned at mounting disc（53）With flap（51）Between；The Disc holder（7）Using fluoroplastics machine-shaping, and it is fixedly mounted on
Flap（51）On.
5. spring Fluorine-lined safety valve according to claim 4, it is characterised in that：The flap（51）Outer ring is provided with outer spiral shell
Line（511）, the Disc holder（7）Internal thread is correspondingly provided with, and is coordinated by screw thread and is fixed on flap（51）On.
6. spring Fluorine-lined safety valve according to claim 4, it is characterised in that：The flap（51）Lower surface formed
There is the annular sealing surface of protrusion（512）, the annular sealing surface（512）With valve seat（2）Sealing coordinates.
7. spring Fluorine-lined safety valve according to claim 4, it is characterised in that：The flap（51）Upper surface center is set
There is resettlement groove（513）, the resettlement groove（513）Inside it is provided with and valve rod（4）The jacking block that end coordinates（8）.
8. spring Fluorine-lined safety valve according to claim 4, it is characterised in that：The valve body（1）With valve seat（2）In one
Body formula structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720815350.2U CN206918277U (en) | 2017-07-07 | 2017-07-07 | A kind of spring Fluorine-lined safety valve and its flap component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720815350.2U CN206918277U (en) | 2017-07-07 | 2017-07-07 | A kind of spring Fluorine-lined safety valve and its flap component |
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| Publication Number | Publication Date |
|---|---|
| CN206918277U true CN206918277U (en) | 2018-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720815350.2U Active CN206918277U (en) | 2017-07-07 | 2017-07-07 | A kind of spring Fluorine-lined safety valve and its flap component |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202170A (en) * | 2017-07-07 | 2017-09-26 | 浙江天和阀门有限公司 | A kind of processing method of spring Fluorine-lined safety valve and its flap component and flap component |
-
2017
- 2017-07-07 CN CN201720815350.2U patent/CN206918277U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202170A (en) * | 2017-07-07 | 2017-09-26 | 浙江天和阀门有限公司 | A kind of processing method of spring Fluorine-lined safety valve and its flap component and flap component |
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