CN208348599U - A kind of ultralow temperature ripple pressure sensitive diaphragm and integrated pressure regulator valve - Google Patents
A kind of ultralow temperature ripple pressure sensitive diaphragm and integrated pressure regulator valve Download PDFInfo
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- CN208348599U CN208348599U CN201820119031.2U CN201820119031U CN208348599U CN 208348599 U CN208348599 U CN 208348599U CN 201820119031 U CN201820119031 U CN 201820119031U CN 208348599 U CN208348599 U CN 208348599U
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- valve body
- pressure sensitive
- pressure
- sensitive diaphragm
- pressure regulator
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Abstract
The utility model discloses a kind of ultralow temperature ripple pressure sensitive diaphragms, comprising: circular metallic membrane, and one group be arranged on metallic membrane are annular corrugated.This design makes pressure sensitive diaphragm have certain elastic deformability, it will not make pressure sensitive diaphragm that deformation at yield or fold occur i.e. in working pressure range, leakage problem caused by pressure sensitive diaphragm fails is avoided, and improves the service life of pressure sensitive diaphragm；The cross shear generated after pressure sensitive diaphragm applied force is reduce or eliminated, to eliminate the interference generated by cross shear to pressure regulation, improves the induction sensitivity and pressure regulation precision of valve fluid pressure；The centripetal pulling force that pressure sensitive diaphragm outer ring is subject to is reduced or eliminated, to avoid liner or brass pressure ring damage inactivation or concentrated wear caused by centripetal pulling force.
Description
Technical field
The technical field that the utility model relates to very low temperature flow pressure of storage tank control and adjust, in particular to it is a kind of ultralow
Warm ripple pressure sensitive diaphragm and integrated pressure regulator valve.
Background technique
Integrated pressure regulator valve is mainly used for the pressure control of very low temperature flow (including gas and liquid) storage tank and adjusts, than
The pressure control and adjusting of such as LNG, liquid hydrogen, liquid oxygen and liquid nitrogen storage tank, including it is difunctional from pressurization and economic valve.
The existing ultralow temperature pressure regulator valve in market is based on two famous brand of the U.S. RegO and Cash, the pressure sensitive film that uses
Piece is all flat diaphragm.For by the U.S., RegO discloses the structure chart in sample, as shown in Figure 1 or 2, upper valve 101 and lower valve 102
Between be equipped with flat diaphragm 103；At the sealing structure of bottom spool 104 and lower valve 102, lower valve 102 is equipped with the metal ring of protrusion
105, the sealing surface of bottom spool 104 is plane；Huang is equipped between flat diaphragm 103 and upper valve 101, flat diaphragm 103 and lower valve 102
Copper pressure ring 106.
Pressure sensitive diaphragm is all flat diaphragm, and this structure is in pressure change, flat diaphragm stress and when providing upper and lower displacement,
Since flat diaphragm outer ring is compacted, and its planar structure again limits flat diaphragm in the deformation and displacement of axis direction, only when
When the stress that pressure generates is greater than the yield deformation stress of diaphragm, it can just force flat diaphragm that yield deformation and upper and lower displacement occurs.
This deformation will lead to following problem: (1) flat diaphragm itself occurs destruction or partial drape, reduces in the case where strongly pullling
The service life of flat diaphragm；(2) in addition to the interior pressure of spring force and medium, flat diaphragm is also by lateral shearing force, the shearing force
Transmitting of the interior pressure to spring is disturbed, reduces flat diaphragm to the induction sensitivity of pressure, so as to cause whole valve to pressure
Induction and adjusting inaccuracy；(3) flat diaphragm outer ring (being compacted the position of constraint) by centripetal pulling force, the pulling force effect is in pressure
Tightly on brass pressure ring together, cause brass pressure ring by shearing force, damage inactivation or office so as to cause brass pressure ring
Portion's abrasion, so as to cause dielectric leakage.
Utility model content
The purpose of utility model: the utility model discloses a kind of ultralow temperature ripple pressure sensitive diaphragm, working pressure range
It is interior to make pressure sensitive diaphragm that deformation at yield or fold occur, permanent damage will not be caused to it, improve pressure sensitive diaphragm
Service life；The interference that cross shear generates pressure regulation is reduced or eliminated, the induction spirit of valve fluid pressure is improved
Sensitivity and pressure regulation precision；The centripetal pulling force that pressure sensitive diaphragm outer ring is subject to is reduced or eliminated, liner or brass pressure ring are avoided
Damage inactivation or concentrated wear cause dielectric leakage.
Technical solution: in order to achieve the goal above, the utility model discloses a kind of ultralow temperature ripple pressure sensitive diaphragm,
It include: circular metallic membrane, and one group be arranged on metallic membrane is annular corrugated.This design is due to its distinctive wave
Line structure makes pressure sensitive diaphragm have certain elastic deformability, i.e., in working pressure range, what axis direction generated
Appropriate displacement will not make pressure sensitive diaphragm that deformation at yield or fold occur, and will not cause permanent damage to it, avoid pressure
Leakage problem caused by power reaction diaphragm fails, and improve the service life of pressure sensitive diaphragm；Reduce or eliminate pressure
The cross shear generated after reaction diaphragm stress, to eliminate the interference generated by cross shear to pressure regulation, to make medium
Interior pressure make be used in pressure sensitive diaphragm on axial compressive force can be accurately transferred to spring, improve valve to fluid pressure
The induction sensitivity and pressure regulation precision of power；Reduce or eliminate the centripetal pulling force that pressure sensitive diaphragm outer ring is subject to, to avoid to
Liner or brass pressure ring damage inactivation or concentrated wear caused by heart pulling force.
Further, a kind of above-mentioned ultralow temperature ripple pressure sensitive diaphragm, two surface of metallic membrane are equipped with film
Protective layer.The thinfilm protective coating of metallic membrane upper surface is used to completely cut off metallic membrane and the external corrosive substance penetrated into, following table
The thinfilm protective coating in face is used to completely cut off the medium of metallic membrane and valve internal, and this design prevents from corroding in medium or air
Property substance corrodes metallic membrane, improves the service life of pressure sensitive diaphragm, and prevent dielectric leakage.
Further, above-mentioned a kind of ultralow temperature ripple pressure sensitive diaphragm, the thinfilm protective coating be PTFE film or
The modified material film of PCTFE film or both.The thinfilm protective coating performance of this design is stablized, have it is good low temperature resistant and
Resistance to corrosion.
The utility model discloses a kind of integrated pressure regulator valve, including upper valve body, lower valve body and tail-hood, the hollow cavities of lower valve body
It is equipped with Pilot poppet and valve rod in vivo, the first spring is equipped between tail-hood and spool；Be equipped in the hollow cavity of upper valve body every lid,
Second spring and adjusting bolt, adjust and are equipped with snak link between bolt and second spring；It further include above-mentioned ultralow temperature ripple pressure
Power reaction diaphragm, the ultralow temperature ripple pressure sensitive diaphragm are arranged between upper valve body and lower valve body.This design surpasses
Low temperature ripple pressure sensitive diaphragm has above-mentioned technical effect, and integrating pressure regulator valve has long service life, and pressure regulation is accurate, structure
It is reliable and stable, the characteristics of use process safety leakage proof.
Further, a kind of above-mentioned integrated pressure regulator valve, described Pilot poppet one end are connect with the first spring, and the other end is equipped with
The annular seal of protrusion, the sealing face contact of annular seal and lower valve body, the sealing surface are plane.This design replaces
The mode of the metal ring of lower valve body protrusion and the material is soft Pilot poppet plane formed sealing cooperation, lower valve body in the design
Flat sealing surface will not cause damage or dent to the annular seal of Pilot poppet, avoid seal failure and leakage is asked
The generation of topic.
Further, above-mentioned a kind of integrated pressure regulator valve, is equipped between the ultralow temperature ripple pressure sensitive diaphragm and valve rod
Steel ball.This design structure is simple, reliable, replaces the spool being arranged on pressure sensitive diaphragm with steel ball；Complete feeling of stress
Diaphragm is answered to ensure that completely isolated between the hollow cavity of both upper valve body and lower valve body, without other sealing structures.
Further, above-mentioned a kind of integrated pressure regulator valve, the Pilot poppet side are equipped with one group of groove.Under this design makes
It is connected between the hollow cavity of valve body and the cavity of tail-hood, keeps the pressure between two cavitys equal, ensure that Pilot poppet is moved
Dynamic sensitivity.
Further, above-mentioned a kind of integrated pressure regulator valve, sets between the ultralow temperature ripple pressure sensitive diaphragm and upper valve body
There is pressure ring, liner flexible is equipped between lower valve body, the end face of lower valve body installation liner is equipped with what one group of end was arc-shaped
Annular protrusion.The design of pressure ring improves upper valve body and is pressing against power to pressure sensitive diaphragm；On liner flexible and lower valve body
The design of annular protrusion improves the leakproofness between lower valve body and pressure sensitive diaphragm, and will not be passed by pressure sensitive diaphragm
The shearing force passed is pulled, and dielectric leakage is prevented；And arc-shaped annular protrusion surface is gentle, and scuffing or recessed will not be caused to liner
Trace avoids seal failure.
Further, one group of above-mentioned a kind of integrated pressure regulator valve, the ultralow temperature ripple pressure sensitive diaphragm is annular corrugated
It is arranged in the hollow cavity of upper valve body.The ripple protrusion direction of this design, pressure sensitive diaphragm is consistent with Impact direction, makes
The elastic deformability of pressure sensitive diaphragm is more preferable, can eliminate cross shear, in order to avoid pressure regulation is interfered.
Further, a kind of above-mentioned integrated pressure regulator valve, the annular seal end are arc-shaped.The annular of this design
Some slight misalignment of the sealing with the sealing surface of lower valve body when being bonded, does not interfere with sealing performance；The ring that end is arc-shaped
Shape sealing is during dynamic sealing, it is easier to and the sealing surface of lower valve body forms reliable and stable cooperation.
Above-mentioned technical proposal can be seen that the utility model has the following beneficial effects: one kind described in the utility model
Ultralow temperature ripple pressure sensitive diaphragm will not make in working pressure range pressure sensitive diaphragm that deformation at yield or fold occur, no
Permanent damage can be caused to it, prevent corrosive goods confrontation metallic membrane in medium or air from corroding, improve feeling of stress
Answer the service life of diaphragm；The interference that cross shear generates pressure regulation is reduced or eliminated, valve fluid pressure is improved
Induction sensitivity and pressure regulation precision；The centripetal pulling force that pressure sensitive diaphragm outer ring is subject to is reduced or eliminated, liner is avoided to destroy
Failure or concentrated wear cause dielectric leakage；Its performance is stablized, and has good low temperature resistant and resistance to corrosion.The utility model
A kind of integrated pressure regulator valve, the ultralow temperature ripple pressure sensitive diaphragm used have above-mentioned technical effect；Guide valve
The annular seal of core not will cause damage or dent, avoid seal failure；It ensure that the mobile sensitivity of Pilot poppet；More
It is easy and the sealing surface of lower valve body forms reliable and stable cooperation；Simple with structure, reliable, long service life, pressure regulation is accurate,
The characteristics of use process safety leakage proof.
Detailed description of the invention
Fig. 1 is the structural representation of U.S. RegO first generation ultralow temperature pressure regulator valve product in the prior art；
Fig. 2 is the structural representation of U.S. RegO second generation ultralow temperature pressure regulator valve product in the prior art；
Fig. 3 is that a kind of structure of the first embodiment of ultralow temperature ripple pressure sensitive diaphragm described in the utility model is shown
It is intended to；
Fig. 4 is the schematic diagram of the section structure of A-A in Fig. 3；
Fig. 5 is a kind of section knot of second of embodiment of ultralow temperature ripple pressure sensitive diaphragm described in the utility model
Structure schematic diagram；
Fig. 6 is a kind of sectional structure chart of integrated pressure regulator valve described in the utility model；
Fig. 7 is the detailed structure view in the portion B in Fig. 5；
In figure: 1- metallic membrane, 2- is annular corrugated, 3- thinfilm protective coating, 4- upper valve body, 5- lower valve body, 51- sealing surface,
52- annular protrusion, 53- steel ball support portion, 6- tail-hood, 7- Pilot poppet, 71- annular seal, 72- groove, 8- valve rod, 9-
One spring, 10- adjust bolt, 13- snak link, 14- steel ball, 15- pressure ring, 16- liner, 17- every lid, 11- second spring, 12-
Seal ring at tail part, 101- upper valve, 102- lower valve, 103- flat diaphragm, 104- bottom spool, 105- metal ring, 106- brass pressure ring.
Specific embodiment
With reference to the accompanying drawing, specific embodiment of the present invention is described in detail.
Embodiment 1
A kind of ultralow temperature ripple pressure sensitive diaphragm of the utility model, as shown in Figure 3 and Figure 4, including circular metal
Diaphragm 1, and be arranged on metallic membrane 1 one group annular corrugated 2；1 liang of surface of metallic membrane is equipped with thinfilm protective coating 3,
Thinfilm protective coating 3 is the modified material film of PTFE film or PCTFE film or both；Annular corrugated 2 quantity is 1.
A kind of integrated pressure regulator valve of the utility model, as shown in Figure 6 and Figure 7, including upper valve body 4, lower valve body 5 and tail-hood 6,
Upper valve body 4 and lower valve body 5 are threadedly coupled, and lower valve body 5 and tail-hood 6 are threadedly coupled and are equipped between the two seal ring at tail part 17,
It is equipped with Pilot poppet 7 and valve rod 8 in the hollow cavity of lower valve body 5, the first spring 9 is equipped between tail-hood 6 and spool 7；Upper valve body 4
Hollow cavity in be equipped with every lid 10, second spring 11 and adjust bolt 12, adjust and be equipped between bolt 12 and second spring 11
Snak link 13；It further include above-mentioned ultralow temperature ripple pressure sensitive diaphragm, the ultralow temperature ripple pressure sensitive diaphragm setting exists
Between upper valve body 4 and lower valve body 5, upper valve body 4 and the respective hollow cavity of lower valve body 5 are separated, also, ultralow temperature ripple pressure
One group annular corrugated 2 of reaction diaphragm is arranged in the hollow cavity of upper valve body 4；Ultralow temperature ripple pressure sensitive diaphragm and valve rod
Steel ball 14 is equipped between 8, lower valve body 5 is equipped with the steel ball support portion 53 of cone；Ultralow temperature ripple pressure sensitive diaphragm and upper valve
It is equipped between body 4 between pressure ring 15, with lower valve body 5 and is equipped with liner 16 flexible, the end face of the installation of lower valve body 5 liner 16 is equipped with one
The annular protrusion 52 that group end is arc-shaped.
7 one end of Pilot poppet is connect with the first spring 9, and the other end is equipped with the annular seal 71 of protrusion, annular seal
71 ends are arc-shaped；Annular seal 71 is contacted with the sealing surface 51 of lower valve body 5, and the sealing surface 51 is plane；Guide valve
7 side of core is equipped with one group of groove 72, and the quantity of one group of groove 72 is 2.
Embodiment 2
A kind of ultralow temperature ripple pressure sensitive diaphragm of the utility model, as shown in figure 5, include circular metallic membrane 1,
And it is arranged in one group annular corrugated 2 on metallic membrane 1；Annular corrugated 2 quantity is 3.Remaining knot of integrated pressure regulator valve
Structure is same as Example 1.
The above is only the preferred embodiment of the utility model, it should be noted that for the ordinary skill of the art
For personnel, without departing from the principle of this utility model, several improvement can also be made, these improvement also should be regarded as this
The protection scope of utility model.
Claims (9)
1. a kind of integrated pressure regulator valve, including upper valve body (4), lower valve body (5) and tail-hood (6), set in the hollow cavity of lower valve body (5)
There are Pilot poppet (7) and valve rod (8), is equipped with the first spring (9) between tail-hood (6) and spool (7)；The hollow cavity of upper valve body (4)
It is equipped in vivo every lid (10), second spring (11) and adjusts bolt (12), adjusted and set between bolt (12) and second spring (11)
There are snak link (13)；It is characterized by also including circular metallic membrane (1), and one group be arranged on metallic membrane (1)
Annular corrugated (2), the metallic membrane (1) are arranged between upper valve body (4) and lower valve body (5).
2. a kind of integrated pressure regulator valve according to claim 1, it is characterised in that: described Pilot poppet (7) one end and first
Spring (9) connection, the other end are equipped with the annular seal (71) of protrusion, the sealing surface of annular seal (71) and lower valve body (5)
(51) it contacts, the sealing surface (51) is plane.
3. a kind of integrated pressure regulator valve according to claim 1, it is characterised in that: the metallic membrane (1) and valve rod (8) it
Between be equipped with steel ball (14).
4. a kind of integrated pressure regulator valve according to claim 1, it is characterised in that: Pilot poppet (7) side is equipped with one
Group groove (72).
5. a kind of integrated pressure regulator valve according to claim 1, it is characterised in that: the metallic membrane (1) and upper valve body (4)
Between be equipped between pressure ring (15), with lower valve body (5) be equipped with liner (16) flexible, lower valve body (5) installation pad (16) end
Face is equipped with the annular protrusion (52) that one group of end is arc-shaped.
6. a kind of integrated pressure regulator valve according to claim 1, it is characterised in that: one group of annular of the metallic membrane (1)
Ripple (2) is arranged in the hollow cavity of upper valve body (4).
7. a kind of integrated pressure regulator valve according to claim 2, it is characterised in that: annular seal (71) end is in circle
Arc.
8. a kind of integrated pressure regulator valve according to claim 1, it is characterised in that: (1) two surface of metallic membrane is all provided with
There are thinfilm protective coating (3).
9. a kind of integrated pressure regulator valve according to claim 8, it is characterised in that: the thinfilm protective coating (3) is that PTFE is thin
The modified material film of film or PCTFE film or both.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820119031.2U CN208348599U (en) | 2018-01-24 | 2018-01-24 | A kind of ultralow temperature ripple pressure sensitive diaphragm and integrated pressure regulator valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820119031.2U CN208348599U (en) | 2018-01-24 | 2018-01-24 | A kind of ultralow temperature ripple pressure sensitive diaphragm and integrated pressure regulator valve |
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| Publication Number | Publication Date |
|---|---|
| CN208348599U true CN208348599U (en) | 2019-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820119031.2U Active CN208348599U (en) | 2018-01-24 | 2018-01-24 | A kind of ultralow temperature ripple pressure sensitive diaphragm and integrated pressure regulator valve |
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| CN (1) | CN208348599U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115614520A (en) * | 2022-12-19 | 2023-01-17 | 常州市潞城燃气设备股份有限公司 | Automatic bleeding valve |
-
2018
- 2018-01-24 CN CN201820119031.2U patent/CN208348599U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115614520A (en) * | 2022-12-19 | 2023-01-17 | 常州市潞城燃气设备股份有限公司 | Automatic bleeding valve |
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