CN207609827U - A kind of low-temperature reduced-pressure valve - Google Patents
A kind of low-temperature reduced-pressure valve Download PDFInfo
- Publication number
- CN207609827U CN207609827U CN201721453950.5U CN201721453950U CN207609827U CN 207609827 U CN207609827 U CN 207609827U CN 201721453950 U CN201721453950 U CN 201721453950U CN 207609827 U CN207609827 U CN 207609827U
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- CN
- China
- Prior art keywords
- valve
- spring
- pressure
- diaphragm
- valve deck
- 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 - Fee Related
Links
- 230000033228 biological regulation Effects 0.000 claims abstract description 23
- 239000012530 fluid Substances 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000003949 liquefied natural gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Abstract
The utility model provides a kind of low-temperature reduced-pressure valve, can solve the problems, such as that existing cumbersome, low precision, the validity of adjusting of existing low-temperature reduced-pressure valve is low, and can guarantee the safety used.It includes valve body, valve deck, spool and spring, valve deck spiral-lock is in the top of valve body, valve body is equipped with fluid inlet, fluid outlet and adjusts runner, diaphragm unit is provided between valve body and valve deck, it is located in valve deck above diaphragm unit and spring is installed, spool top passes through diaphragm unit and is connect with spring bottom from bottom to top, and spool bottom coordinates with the valve port for adjusting runner, and valve deck screw top is connected with adjusting screw and adjusting screw is connect after the valve deck with spring top；It is equipped with pressure regulation scale assembly at the top of valve deck, pressure scale is imprinted on pressure regulation scale assembly, adjusting screw is installed on pressure regulation scale assembly and is connect with spring behind valve deck top.
Description
Technical field
The utility model is related to pressure-control valve field, specially a kind of low-temperature reduced-pressure valve.
Background technology
Subzero valve belongs to Special valve, is mainly used for exporting inflammable and explosive liquid low temperature medium such as ethylene, liquid oxygen, liquid
Hydrogen, liquefied natural gas, liquefied petroleum product etc..Existing low-temperature reduced-pressure valve, which usually requires to coordinate with pressure gauge, carries out pressure tune
Examination, operating personnel observes pressure gauge numerical value in control valve pressure regulation bar when debugging, up to pressure gauge numerical value reaches required pressure,
It is poor that it not only debugs cumbersome but also degree of regulation, generally requires most debugging and can be only achieved pressure control to require, and it is low to adjust efficiency；
In addition, since liquid low temperature medium is not only inflammable and explosive, and it will produce gasification in heating and make hundreds times of its volume expansion, institute
Very important with the material of Subzero valve, existing low-temperature reduced-pressure valve is mostly cast member or forge piece made of copper, especially valve
Interior diaphragm is mostly copper film piece, since the ductility of copper film piece is not ideal enough, often will appear comprehensive mechanical performance, intensity, steel
The problem of degree can not meet requirement even will produce fracture, lead to dielectric leakage and set off an explosion, jeopardizing production when serious
Safety.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of low-temperature reduced-pressure valve, existing low-temperature reduced-pressure valve can be solved and deposited
The cumbersome, low precision of adjusting, the low problem of validity, and can guarantee the safety used.
Its technical solution is a kind of low-temperature reduced-pressure valve comprising valve body, valve deck, spool and spring, the valve deck spiral-lock is simultaneously
Be threadedly connected to the top of the valve body, the valve body is equipped with fluid inlet, fluid outlet and adjusts runner, the valve body with
It is provided with diaphragm unit between valve deck, is located in the valve deck above the diaphragm unit and the spring, the valve is installed
The diaphragm unit is passed through at the top of core from bottom to top and is connect with the spring bottom, the spool bottom and the adjusting runner
Valve port cooperation, the valve deck screw top be connected with adjusting screw and the adjusting screw pass through after the valve deck with the bullet
Connection at the top of spring, it is characterised in that：It is equipped with pressure regulation scale assembly at the top of the valve deck, pressure is imprinted on the pressure regulation scale assembly
Power scale value, the adjusting screw are installed on the pressure regulation scale assembly and connect with the spring behind valve deck top
It connects.
Further, the pressure regulation scale assembly includes locking swivel nut and upper cover, and the valve deck top, which is equipped with, to be threadedly coupled
The bottom inner hole thread in portion, the locking swivel nut is threadedly coupled with the periphery of the threaded joints, the locking swivel nut top surface
Equipped with concentric guide sleeve, the upper cover sliding sleeve is loaded on the guide sleeve and is equipped with compressed spring in the upper cover and guide sleeve,
The upper and lower ends of the compressed spring are abutted with the top surface of the inner top surface of upper cover, locking swivel nut respectively, the periphery wall of the guide sleeve
On there is stamp to have a pressure scale, the adjusting screw sequentially pass through from top to bottom the upper cover, guide sleeve, locking swivel nut,
It is connect with the top of the spring after valve deck and the adjusting screw is connect with the inner hole thread of the threaded joints, the pressure
Contracting spring is sheathed on the adjusting screw periphery simultaneously.
Further, the diaphragm unit includes the three-piece metal diaphragm stacked gradually, and the three-piece metal diaphragm is
Stainless steel diaphragm.
Further, the spring top is fixed with spring button, bottom end is connected with pressing plate, the tune by spring washer
Section screw is connect with institute spring button, and the pressing plate is pressed on the diaphragm unit.
Further, the top of the spool is equipped with valve stem, and the valve stem sequentially passes through the diaphragm from bottom to top
It locks and connects with fixing nut after component, pressing plate, spring washer.
Further, the bottom of the spool is equipped with piston portion, and the adjusting runner mouth of the valve body is equipped with by gasket lives
The piston portion of plug valve seat, the spool stretches into the piston valve base.
Further, further include diaphragm locating part, the diaphragm locating part is in the convex hoop shape swelled upwards, the valve deck
The bottom circumferential edge of the diaphragm locating part, the diaphragm unit are pressed in the valve body by what is stacked gradually from top to bottom
On, the pressing plate is between the diaphragm locating part and diaphragm unit, and the bulge loop internal orifice dimension of the diaphragm locating part is less than
The pressing plate diameter.
The beneficial effects of the utility model are：Connect with adjusting screw and surface is arranged on valve deck and is imprinted with for it
The pressure regulation scale assembly of pressure scale, thus real-time pressure kilogram can be intuitively obtained while rotating adjusting screw
Number, thus its pressure regulation is convenient and precision is high；Meanwhile diaphragm with stainless steel diaphragm instead of existing copper diaphragm, due to not
The metal good-extensibility of rust steel diaphragm, therefore can guarantee the requirement of low-temperature reduced-pressure valve, it effectively avoids being broken, it is ensured that production peace
Entirely.
Description of the drawings
Fig. 1 is a kind of internal structure schematic diagram of low-temperature reduced-pressure valve of the utility model；
Fig. 2 is a kind of decomposition diagram of low-temperature reduced-pressure valve of the utility model；
Fig. 3 is a kind of external structure stereoscopic schematic diagram of low-temperature reduced-pressure valve of the utility model.
Reference numeral in figure：10- valve bodies, 11- fluid inlets, 12- fluid outlets, 13- adjusting runners, 14- gaskets,
20- valve decks, 21- threaded joints, 30- spools, 31- valve stems, 32- piston portions, 33- fixing nuts, 34- piston valve bases, 40-
Spring, 41- spring buttons, 42- spring washers, 43- pressing plates, 50- diaphragm units, 51- metallic membranes, 52- metallic membranes, 53-
Metallic membrane, 54- diaphragm unit washers, 55- membrane module gaskets, 60- adjusting screws, 70- pressure regulation scale assemblies, 71- locking screws
Set, 711- guide sleeves, 712- inner hole threads, 72- upper covers, 74- pressure scales, 73- compressed springs, 80- diaphragm locating parts, 81-
Bottom circumferential edge, 90- nameplates.
Specific implementation mode
See Fig. 1~Fig. 3, a kind of low-temperature reduced-pressure valve of the utility model comprising valve body 10, valve deck 20, spool 30 and spring
40,20 spiral-lock of valve deck and the top for being threadedly connected to valve body 10, valve body 10 are equipped with fluid inlet 11, fluid outlet 12 and adjust
Runner 13, is provided with diaphragm unit 50 between valve body 10 and valve deck 20, the interior and top positioned at diaphragm unit 50 of valve deck 20 is installed
There are spring 40,30 top of spool to pass through diaphragm unit 50 from bottom to top and connect with 40 bottom of spring, 10 bottom of spool and adjusting
The valve port of runner 13 coordinates, 20 screw top of valve deck is connected with adjusting screw 60 and adjusting screw 60 pass through after valve deck 20 with spring
40 top connections；20 top of valve deck is equipped with pressure regulation scale assembly 70, is imprinted with pressure scale 74 on pressure regulation scale assembly 70, adjusts
Section screw 60 is installed on pressure regulation scale assembly 70 and is connect with spring 40 behind 20 top of valve deck.
Wherein, pressure regulation scale assembly 70 includes locking swivel nut 71 and upper cover 72, and 20 top of valve deck is equipped with threaded joints 21,
The bottom inner hole thread 712 of locking swivel nut 71 is threadedly coupled with the periphery of threaded joints 21, and 71 top surface of locking swivel nut is equipped with one
The concentric guide sleeve 711 of body, 72 sliding sleeve of upper cover are equipped with compressed spring loaded on guide sleeve 711 in upper cover 72 and guide sleeve 711
73, the upper and lower ends of compressed spring 73 are abutted with the top surface of the inner top surface of upper cover 72, locking swivel nut 71 respectively, outside guide sleeve 711
There is stamp to there is pressure scale 74, adjusting screw 60 to sequentially pass through upper cover 72, guide sleeve 711, locking swivel nut from top to bottom on peripheral wall
71, it is connect with the top of spring 40 after valve deck 20 and adjusting screw 60 is connect with the inner hole thread of threaded joints 21, compress bullet
Spring 73 is sheathed on the periphery of adjusting screw 60 simultaneously.
Diaphragm unit 50 includes the three-piece metal diaphragm 51,52,53 stacked gradually, and three-piece metal diaphragm 51,52,53 is
Stainless steel diaphragm.
40 top of spring is fixed with spring button 41, bottom end is connected with pressing plate 43, adjusting screw 60 by spring washer 42
It is connect with spring button 41 after pressure regulation scale assembly 70, valve deck 20, pressing plate 43 is pressed on diaphragm unit 50；
The top of spool 30 is equipped with valve stem 31, and valve stem 31 sequentially passes through diaphragm unit 50, pressing plate 43, bullet from bottom to top
It locks and connects with fixing nut 33 after spring washer 42；Pad is equipped with cured component gasket 55 between spool 30 and diaphragm unit 50；Valve
The bottom of core 30 is equipped with piston portion 32, and the adjusting runner mouth of valve body 10 is equipped with piston valve base 34, the work of spool 30 by gasket 14
Piston part 32 is stretched into piston valve base 34.
The utility model further includes diaphragm locating part 80, and diaphragm locating part 80 is in the convex hoop shape swelled upwards, and valve deck 20 is certainly
It is above lower to press the bottom circumferential edge 81 of diaphragm locating part 80, diaphragm unit 50, diaphragm unit washer 54 by what is stacked gradually
Tightly on valve body 10, pressing plate 43 is between diaphragm locating part 80 and diaphragm unit 50, and the bulge loop endoporus of diaphragm locating part 80
Diameter is less than 43 diameter of pressing plate.
The low-temperature reduced-pressure valve of the utility model drives the linear movement of spring 40 to push away by rotating adjusting screw 60
Dynamic diaphragm component 50 generates deformation and is acted with movable valve plug 30, adjusts the folding of the valve port of runner 13 in regulation valve body 10 afterwards
Degree, realizes the pressure regulation of fluid；When rotating down adjusting screw 60, adjusting screw 60 pushes upper cover 72 to be moved down along guide sleeve 711,
Until the bottom margin of upper cover 72 is flushed with the corresponding pressure scale 74 marked on guide sleeve 711, that is, debug in place；Temperature adjustment is carved
Degree component 70 in 73 both ends of compressed spring hold out against always the inner top surface of upper cover 72, locking swivel nut 71 top surface, to ensure upper cover
The stabilization of vertical relative position between 72 and guide sleeve 711, it is ensured that pressure value debugging is stablized；The pressure scale marked on guide sleeve 711
Value is to generate corresponding deformation with 40 compression pusher dynamic diaphragm component 40 of spring according to the distance of 60 vertical displacement of adjusting nut and make
The correspondence of pressure value is calculated after the adjusting opening degree of spool 30.In the present embodiment, the unit of pressure scale is kilogram.
Claims (7)
1. a kind of low-temperature reduced-pressure valve comprising valve body (10), valve deck (20), spool (30) and spring (40), the valve deck (20)
Spiral-lock and the top for being threadedly connected to the valve body (10), the valve body (10) are equipped with fluid inlet (11), fluid outlet (12)
And runner (13) is adjusted, diaphragm unit (50) is provided between the valve body (10) and valve deck (20), the valve deck (20) is interior
The spring (40) is installed above the diaphragm unit (50), is passed through from bottom to top at the top of the spool (30) described
Diaphragm unit (50) is simultaneously connect with the spring (40) bottom, the valve port of spool (30) bottom and the adjusting runner (13)
Cooperation, valve deck (20) screw top is connected with adjusting screw (60) and the adjusting screw (60) passes through the valve deck (20)
It is connect afterwards with the spring (40) top, it is characterised in that：Pressure regulation scale assembly (70) is equipped at the top of the valve deck (20), it is described
Pressure scale is imprinted on pressure regulation scale assembly (70), the adjusting screw (60) is installed on the pressure regulation scale assembly (70)
It goes up and is connect with the spring (40) after passing through at the top of the valve deck (20).
2. a kind of low-temperature reduced-pressure valve according to claim 1, it is characterised in that：The pressure regulation scale assembly (70) includes lock
Tight swivel nut (71) and upper cover (72), valve deck (20) top are equipped with threaded joints (21), the bottom of the locking swivel nut (71)
Portion's inner hole thread (712) is threadedly coupled with the periphery of the threaded joints (21), and locking swivel nut (71) top surface is equipped with same
The guide sleeve (711) of the heart, upper cover (72) sliding sleeve is loaded on the guide sleeve (711) and the upper cover (72) and guide sleeve (711)
Compressed spring (73) is inside installed, the upper and lower ends of the compressed spring (73) inner top surface, the locking screw with upper cover (72) respectively
The top surface for covering (71) abuts, and has stamp to have the pressure scale, the adjusting screw on the periphery wall of the guide sleeve (711)
(60) sequentially pass through from top to bottom after the upper cover (72), guide sleeve (711), locking swivel nut (71), valve deck 20 with the spring
(40) top connection and the adjusting screw (60) is connect with the inner hole thread (712) of the threaded joints (21), described
Compressed spring (73) while being sheathed on the adjusting screw (60) periphery.
3. a kind of low-temperature reduced-pressure valve according to claim 1 or 2, it is characterised in that：The diaphragm unit (50) include according to
The three-piece metal diaphragm (51,52,53) of secondary stacking, the three-piece metal diaphragm (51,52,53) is stainless steel diaphragm.
4. a kind of low-temperature reduced-pressure valve according to claim 3, it is characterised in that：Spring (40) top is fixed with spring
Button (41), bottom end are connected with pressing plate (43), the adjusting screw (60) and institute's spring button (41) by spring washer (42)
Connection, the pressing plate (43) are pressed on the diaphragm unit (50).
5. a kind of low-temperature reduced-pressure valve according to claim 4, it is characterised in that：The top of the spool (30) is equipped with valve rod
Portion (31), after the valve stem (31) sequentially passes through the diaphragm unit (50), pressing plate (43), spring washer (42) from bottom to top
It locks and connects with fixing nut (33).
6. a kind of low-temperature reduced-pressure valve according to claim 5, it is characterised in that：The bottom of the spool (30) is equipped with piston
The adjusting runner mouth in portion (32), the valve body (10) is equipped with piston valve base (34), the work of the spool (30) by gasket (14)
Piston part (32) is stretched into the piston valve base (34).
7. a kind of low-temperature reduced-pressure valve according to claim 5, it is characterised in that：It further includes diaphragm locating part (80), institute
It is in the convex hoop shape swelled upwards to state diaphragm locating part (80), and the valve deck (20) from top to bottom limits the diaphragm stacked gradually
The bottom circumferential edge (81) of position part (80), the diaphragm unit (50), diaphragm unit washer (54) are pressed in the valve body
(10) on, the pressing plate (43) is between the diaphragm locating part (80) and diaphragm unit (50), and the diaphragm locating part
(80) aperture of bulge loop endoporus is less than the pressing plate (43) diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721453950.5U CN207609827U (en) | 2017-11-03 | 2017-11-03 | A kind of low-temperature reduced-pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721453950.5U CN207609827U (en) | 2017-11-03 | 2017-11-03 | A kind of low-temperature reduced-pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207609827U true CN207609827U (en) | 2018-07-13 |
Family
ID=62793980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721453950.5U Expired - Fee Related CN207609827U (en) | 2017-11-03 | 2017-11-03 | A kind of low-temperature reduced-pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207609827U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112392981A (en) * | 2020-12-03 | 2021-02-23 | 西安西材三川智能制造有限公司 | Diaphragm valve for special gas and manufacturing method thereof |
-
2017
- 2017-11-03 CN CN201721453950.5U patent/CN207609827U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112392981A (en) * | 2020-12-03 | 2021-02-23 | 西安西材三川智能制造有限公司 | Diaphragm valve for special gas and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180713 |