CN103759064B - A kind of super-low voltage precise pressure-reducing valve - Google Patents
A kind of super-low voltage precise pressure-reducing valve Download PDFInfo
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- CN103759064B CN103759064B CN201410009839.1A CN201410009839A CN103759064B CN 103759064 B CN103759064 B CN 103759064B CN 201410009839 A CN201410009839 A CN 201410009839A CN 103759064 B CN103759064 B CN 103759064B
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- pressure
- upper cover
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- magnetic
- low voltage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0686—Braking, pressure equilibration, shock absorbing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The present invention relates to a kind of super-low voltage precise pressure-reducing valve, compared with prior art solve the defect that reduction valve can not produce super-low voltage.Be threaded in the middle part of upper cover of the present invention and regulate magnetic axis seat, the bottom of magnetic axis seat is regulated to be installed with initiatively magnetic sheet, described pressure ware is provided with air inlet nozzle and outlet nozzle, pressure ware is provided with bearing, bearing is provided with force transferring lever by spring column pin, the two ends of force transferring lever are installed with diaphragm seal and central screw respectively, the mounting point of diaphragm seal is corresponding with the position of air inlet nozzle, the middle part of pressure-sensitive diaphragm is arranged on central screw, spacing magnetic support sheet is fixedly mounted on the top of pressure-sensitive diaphragm by central screw, the top of spacing magnetic support sheet is installed with passive magnetic sheet, described passive magnetic sheet is relative with the active magnetic sheet same sex and mounting point is corresponding, the diameter of described pressure-sensitive diaphragm is 200mm.The present invention uses large diameter pressure-sensitive diaphragm to achieve the precision decompression of super-low voltage.
Description
Technical field
The present invention relates to reduction valve technical field, specifically a kind of super-low voltage precise pressure-reducing valve.
Background technique
Precise pressure-reducing valve traditional at present all realizes the pressure adjusting at more than 5000Pa, cannot normally use after the pressure of below 5000Pa then cannot adjust or adjust owing to not stablizing pressure.But need at present to use the industry of super-low voltage precise pressure-reducing valve and field very many, the gas-tight door of such as burnt gas wall hanging furnace, nuclear power plant, gas cooker, gas water-heater and polymeric membrane etc. all need to detect relevant device with the super-low voltage of 100 ~ 5000Pa or use.But all due to because there is no the super-low voltage pressure regulating equipment that can realize 100 ~ 5000Pa, and have to adopt more complicated or other detecting methods to replace.How to develop a kind of precise pressure-reducing valve that can produce super-low voltage and become the technical problem being badly in need of solving.
Summary of the invention
The object of the invention is can not produce the defect of super-low voltage to solve reduction valve in prior art, providing a kind of super-low voltage precise pressure-reducing valve to solve the problems referred to above.
To achieve these goals, technological scheme of the present invention is as follows:
A kind of super-low voltage precise pressure-reducing valve, comprise upper cover, pressure-sensitive diaphragm and the pressure ware be installed together with upper cover, described pressure-sensitive diaphragm edge section is arranged between upper cover and pressure ware, be threaded in the middle part of described upper cover and regulate magnetic axis seat, the bottom of magnetic axis seat is regulated to be installed with initiatively magnetic sheet, described pressure ware is provided with air inlet nozzle and outlet nozzle, pressure ware is provided with bearing, bearing is provided with force transferring lever by spring column pin, the two ends of force transferring lever are installed with diaphragm seal and central screw respectively, the mounting point of diaphragm seal is corresponding with the position of air inlet nozzle, the middle part of pressure-sensitive diaphragm is arranged on central screw, spacing magnetic support sheet is fixedly mounted on the top of pressure-sensitive diaphragm by central screw, the top of spacing magnetic support sheet is installed with passive magnetic sheet, described passive magnetic sheet is relative with the active magnetic sheet same sex and mounting point is corresponding, the diameter of described pressure-sensitive diaphragm is 200mm.
Described central screw is arranged in the chute of force transferring lever, and central screw is diaphragm seal to 4.63 times of spring column pin distance to the distance of spring column pin.
Also comprise knob bolts, described knob bolts is arranged on the top regulating magnetic axis seat by knob.
Also comprise bearing screw and upper cover screw, described bearing is arranged on pressure ware by bearing screw, and described upper cover is fixedly mounted by upper cover screw and pressure ware.
The material of described upper cover and pressure ware is low carbon steel, the material of described passive magnetic sheet and initiatively magnetic sheet is rubidium iron boron, the material of pressure-sensitive diaphragm and diaphragm seal is nitrile butadiene rubber, and the material of described spacing magnetic support sheet, central screw, force transferring lever, bearing, adjustment magnetic axis seat and knob is aluminum alloy.
beneficial effect
A kind of super-low voltage precise pressure-reducing valve of the present invention, the precision decompression compared with prior art owing to using large diameter pressure-sensitive diaphragm to achieve super-low voltage, its resolution rises to 10Pa from 100Pa, improves the resolution of an order of magnitude.Relatively designed by passive magnetic sheet and the same sex initiatively between magnetic sheet, can utilize and apply precompression with the non-contact of the two like magnetic poles repel each other of magnet, avoid the perturbed force that the spin friction of both ends of the spring face produces, improve repeatability.Be arranged on the design in the chute of force transferring lever by central screw, can more ensure to carry out super-low voltage adjustment more accurately.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
Fig. 2 is the plan view of force transferring lever of the present invention
Fig. 3 is the plan view of force transferring lever of the present invention
Fig. 4 is the structural representation of bearing of the present invention
Wherein, initiatively magnetic sheet, 16-regulate magnetic axis seat, 17-knob bolts, 18-knob, 19-chute for 1-upper cover, 2-pressure ware, 3-pressure-sensitive diaphragm, 4-spacing magnetic support sheet, 5-outlet nozzle, the passive magnetic sheet of 6-, 7-central screw, 8-force transferring lever, 9-spring column pin, 10-bearing, 11-bearing screw, 12-air inlet nozzle, 13-diaphragm seal, 14-upper cover screw, 15-.
Embodiment
For making to have a better understanding and awareness structure characteristic of the present invention and effect of reaching, coordinating detailed description in order to preferred embodiment and accompanying drawing, being described as follows:
As shown in Figure 1, a kind of super-low voltage precise pressure-reducing valve of the present invention, the pressure ware 2 comprising upper cover 1, pressure-sensitive diaphragm 3 and be installed together with upper cover 1, pressure-sensitive diaphragm 3 edge section is arranged between upper cover 1 and pressure ware 2.Upper cover 1, pressure-sensitive diaphragm 3 and pressure ware 2 use for the reduction valve realizing more than 5000Pa in prior art, and overall valve body with folded by pressure ware 2, thus is divided into the air chamber of upper and lower two-part isolation by upper cover 1 by the whole edge of pressure-sensitive diaphragm 3.Be threaded in the middle part of upper cover 1 and regulate magnetic axis seat 16, regulate magnetic axis seat 16 to carry out rotating thus moving up and down on upper cover 1.Regulate the bottom of magnetic axis seat 16 to be installed with initiatively magnetic sheet 15, pressure ware 2 is provided with air inlet nozzle 12 and outlet nozzle 5.Pressure ware 2 is provided with bearing 10, bearing 10 is provided with force transferring lever 8 by spring column pin 9, do axle center by bearing 10 with spring column pin 9 and make force transferring lever 8 can around the micro-rotational motion in spring column pin 9 axle center.
As shown in Figure 4, bearing 10 is a support, and its underpart can be arranged on pressure ware 2 by bearing screw 11, and force transferring lever 8 can be installed by spring column pin 9 in top.The two ends of force transferring lever 8 are installed with diaphragm seal 13 and central screw 7 respectively, and such diaphragm seal 13 and central screw 7 are just similar to lever, when central screw 7 rises, and diaphragm seal 13 decline; When central screw 7 declines, diaphragm seal 13 rising.The middle part of pressure-sensitive diaphragm 3 is arranged on central screw 7, spacing magnetic support sheet 4 is fixedly mounted on the top of pressure-sensitive diaphragm 3 by central screw 7, the top of spacing magnetic support sheet 4 is installed with passive magnetic sheet 6, is fixed integral by central screw 7 by pressure-sensitive diaphragm 3, spacing magnetic support sheet 4 and passive magnetic sheet 6.The mounting point of diaphragm seal 13 is corresponding with the position of air inlet nozzle 12, and diaphragm seal 13 uses for blocking air inlet nozzle 12, when central screw 7 rises, diaphragm seal 13 just can be driven to decline, thus get lodged on air inlet nozzle 12, avoid air inlet again.Passive magnetic sheet 6 is relative with active magnetic sheet 15 same sex and mounting point is corresponding, be arranged on and regulate the active magnetic sheet 15 on magnetic axis seat 16 to be same sexes with the opposing side magnetic pole of the passive magnetic sheet 6 be arranged on spacing magnetic support sheet 4, if be N pole than active magnetic sheet 15, then passive magnetic sheet 6 is also N pole; If initiatively magnetic sheet 15 is S pole, then passive magnetic sheet 6 is also S pole.This mutual expelling force serves the effect of cylindrical spring, if use cylindrical spring, then when there will be rotation knob 18, produces frictional force, affect Adjustment precision between cylindrical spring both ends of the surface and adjustment magnetic axis seat 16.Therefore the mode using initiatively magnetic sheet 15 to match with passive magnetic sheet 6, eliminates elastic force, can not produce the additional power be harmful to that other influences stablizes pressure precision, achieves transmitting force and discontiguous object.The diameter of pressure-sensitive diaphragm 3 is 200mm, preferably can ensure that the effective diameter of pressure-sensitive diaphragm 3 between upper cover 1 and pressure ware 2 is 200mm.When the effective diameter of pressure-sensitive diaphragm 3 is 200mm, can show that the pressure of 10Pa can produce the power of 0.31N to pressure-sensitive diaphragm 3 by calculating, the pressure of 100Pa can produce the power of 3.1N to pressure-sensitive diaphragm 3.The diameter of pressure-sensitive diaphragm 3 increases, its compression area born when pressurized also increases, so just, when cut-in pressure is the pressurized air of 200 ~ 600kPa, directly can transfer large pressure to little pressure, then the low pressure that combination regulates magnetic axis seat 16 to carry out precision adjusts.Pressure-sensitive diaphragm diameter used in the prior art is smaller, then its lifting surface area is also smaller, when cut-in pressure is the pressurized air of 200 ~ 600kPa, its huge compression shock, on the lifting surface area of minor diameter, also just cannot realize the conversion of large pressure to little pressure.
As shown in Figures 2 and 3, force transferring lever 8 can be provided with chute 19, central screw 7 is arranged in the chute 19 of force transferring lever 8, and like this when central screw 7 rises, diaphragm seal 13 is pressed on air inlet nozzle 12, can carry out short distance slip in chute 19; And central screw 7 is when declining, when diaphragm seal 13 rises, central screw 7 also can carry out short distance slip in chute 19.Improve the operational safety of central screw 7 on force transferring lever 8, and by the chute Activities Design of central screw 7 with force transferring lever 8, when carrying out low pressure adjustment, the flexibility between central screw 7 and force transferring lever 8 can be added, further increasing precision and the degree of accuracy of low pressure adjustment.Central screw 7 is 4.63 times that diaphragm seal 13 arrives spring column pin 9 distance to the distance of spring column pin 9, the repulsive force that passive like this magnetic sheet 6 receives is added to diaphragm seal 13 power by force transferring lever 8 is exaggerated 4.63 times by force transferring lever 8, precision is regulated more accurate, use little power can realize fine motion on force transferring lever 8, reach the requirement of accurate decompression.
Regulate magnetic axis seat 16 convenient to make to rotate, knob bolts 17 can also be comprised, knob bolts 17 is arranged on the top regulating magnetic axis seat 16 by knob 18, so just by rotating knob 18, can drive and regulating magnetic axis seat 16 to move up and down on upper cover 1.In order to assemble with easy to maintenance, upper cover 1 is fixedly mounted by upper cover screw 14 and pressure ware 2.The material of upper cover 1 and pressure ware 2 is low carbon steel, and by using low carbon steel, upper cover 1 and pressure ware 2 are not easily magnetized, and the component in valve body are played to the effect of magnetic shielding, such that performance is more stable is not subject to outside electromagnetic interference.The material of passive magnetic sheet 6 and initiatively magnetic sheet 15 is rubidium iron boron, and be of a size of φ 25*3, magnetic induction intensity is 1900Gs.The material of pressure-sensitive diaphragm 3 and diaphragm seal 13 is nitrile butadiene rubber, and shore hardness is 70A, vulcanization die sulfidization molding.Spacing magnetic support sheet 4, central screw 7, force transferring lever 8, bearing 10, regulate the material of magnetic axis seat 16 and knob 18 to be aluminum alloy, metal cutting forms, and is not easily magnetized and density is little, from heavy and light.It is H62 brass that air inlet chews 12 with going out air nozzle 5 material, and turning forms.
When carrying out the whole assembling of the present invention, first on pressure ware 2, loading outlet nozzle 5, applying anaerobic sealer when being threaded into, loading onto air inlet nozzle 12 equally, load bearing 10, fixing with the bearing screw 11 of two M3*6 coiled hairs.At force transferring lever 8 one end embedding sealing sheet 13, force transferring lever 8 is alignd with bearing 10 holes, penetrates spring column pin 9.Passive magnetic sheet 6 applies anaerobic sealer and embeds spacing magnetic support sheet 4, notes the N pole of passive magnetic sheet 6 upward, and the center hole of pressure-sensitive diaphragm 3 aligns with the screw of spacing magnetic support sheet 4, and screw-in central screw 7 is also fastening.The macropore that the chute 19 of force transferring lever 8 aimed at by central screw 7 moves to the other end when being inserted to the waist of central screw downwards, thus central screw 7 is fixed on force transferring lever 8 except on the other end of diaphragm seal 13.Then active magnetic sheet 15 is applied anaerobic sealer and embed adjustment magnetic axis seat 16, the N pole noting initiatively magnetic sheet 15, screws in from the central lower of upper cover 1 external screw thread regulating magnetic axis seat 16 down, with thread engagement to the stage casing of screw thread, put into knob 18, fix by the coiled hair knob bolts 17 of M4*10.Finally by the limit groove of the semicircle protruding parts embedment pressure ware 2 at pressure-sensitive diaphragm 3 edge, put into by upper cover 1, the upper cover screw 14 of 12 M4*12 is fixed at diagonal angle.
During actual use, first carry out debug process, access pressurising equipment at air inlet nozzle 12, outlet nozzle 5 accesses pressure instrumentataion.When air inlet nozzle 12 cut-in pressure is the pressurized air of 200 ~ 600kPa, in pressure ware 2, gas pressure raises, now pressure-sensitive diaphragm 3 can be protruding upward, central screw 7 is moved up, the mouth making diaphragm seal 13 pairs of air inlets chew 12 by force transferring lever 8 carries out shutoff, prevents the pressure increase of pressure ware 2 cavity.Detected in real time by the pressure instrumentataion that outlet nozzle 5 connects, now the pressure of 200 ~ 600kPa is stressed on pressure-sensitive diaphragm 3 changes into super-low voltage, by adjusting knob 18, make to regulate magnetic axis seat 16 to rise and decline, observe according to the pressure instrumentataion that outlet nozzle 5 connects, pressure is larger to regulate magnetic axis seat 16 to surpass down then again; Pressure is less to regulate magnetic axis seat 16 to surpass up then, regulates magnetic axis seat 16 to reach adjust the precision of super-low voltage by adjustment.Adjusting knob 18, can make active magnet 15 and be changed by the repulsive force of moving magnet 6, thus changes pressure balance point, reaches the object of pressure regulation.Debugging terminate after, outlet nozzle 5 directly export debug after super-low voltage.If when the load volume that outlet nozzle 5 connects has a leakage flow or when being connected on outlet nozzle 5 use equipment replacement, the pressure of pressure ware 2 cavity can decline, now the central position of pressure-sensitive diaphragm 3 can decline, the left end of force transferring lever 8 is driven to tilt by central screw 7, gap has been had between diaphragm seal 13 and air inlet nozzle 12, pressure ware 2 gas entered can make pressure ware 2 cavity internal pressure raise, and such pressure just can make pressure keep a constant value by self-control.
More than show and describe basic principle of the present invention, major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; the just principle of the present invention described in above-described embodiment and specification; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in claimed scope of the present invention.The protection domain of application claims is defined by appending claims and equivalent thereof.
Claims (5)
1. a super-low voltage precise pressure-reducing valve, comprise upper cover (1), pressure-sensitive diaphragm (3) and the pressure ware (2) be installed together with upper cover (1), described pressure-sensitive diaphragm (3) edge section is arranged between upper cover (1) and pressure ware (2), it is characterized in that: described upper cover (1) middle part is threaded and regulates magnetic axis seat (16), the bottom of magnetic axis seat (16) is regulated to be installed with initiatively magnetic sheet (15), described pressure ware (2) is provided with air inlet nozzle (12) and outlet nozzle (5), pressure ware (2) is provided with bearing (10), bearing (10) is provided with force transferring lever (8) by spring column pin (9), the two ends of force transferring lever (8) are installed with diaphragm seal (13) and central screw (7) respectively, the mounting point of diaphragm seal (13) is corresponding with the position of air inlet nozzle (12), the middle part of pressure-sensitive diaphragm (3) is arranged on central screw (7), spacing magnetic support sheet (4) is fixedly mounted on the top of pressure-sensitive diaphragm (3) by central screw (7), the top of spacing magnetic support sheet (4) is installed with passive magnetic sheet (6), described passive magnetic sheet (6) is relative with active magnetic sheet (15) same sex and mounting point is corresponding, the diameter of described pressure-sensitive diaphragm (3) is 200mm.
2. a kind of super-low voltage precise pressure-reducing valve according to claim 1, it is characterized in that: described central screw (7) is arranged in the chute (19) of force transferring lever (8), central screw (7) is diaphragm seal (13) to 4.63 times of spring column pin (9) distance to the distance of spring column pin (9).
3. a kind of super-low voltage precise pressure-reducing valve according to claim 1, is characterized in that: also comprise knob bolts (17), and described knob bolts (17) is arranged on the top regulating magnetic axis seat (16) by knob (18).
4. a kind of super-low voltage precise pressure-reducing valve according to claim 1, it is characterized in that: also comprise bearing screw (11) and upper cover screw (14), described bearing (10) is arranged on pressure ware (2) by bearing screw (11), and described upper cover (1) is fixedly mounted by upper cover screw (14) and pressure ware (2).
5. a kind of super-low voltage precise pressure-reducing valve according to claim 3, it is characterized in that: described upper cover (1) and the material of pressure ware (2) are low carbon steel, the material of described passive magnetic sheet (6) and initiatively magnetic sheet (15) is rubidium iron boron, the material of pressure-sensitive diaphragm (3) and diaphragm seal (13) is nitrile butadiene rubber, described spacing magnetic support sheet (4), central screw (7), force transferring lever (8), bearing (10), regulates magnetic axis seat (16) and the material of knob (18) to be aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410009839.1A CN103759064B (en) | 2014-01-09 | 2014-01-09 | A kind of super-low voltage precise pressure-reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410009839.1A CN103759064B (en) | 2014-01-09 | 2014-01-09 | A kind of super-low voltage precise pressure-reducing valve |
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| Publication Number | Publication Date |
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| CN103759064A CN103759064A (en) | 2014-04-30 |
| CN103759064B true CN103759064B (en) | 2015-12-16 |
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| CN201410009839.1A Active CN103759064B (en) | 2014-01-09 | 2014-01-09 | A kind of super-low voltage precise pressure-reducing valve |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106186145B (en) * | 2016-09-26 | 2022-11-04 | 大庆市海油庆石油科技有限公司 | Settling tank type automatic flushing dissolved air flotation device |
| CN108374897A (en) * | 2018-03-30 | 2018-08-07 | 广东艾能燃控科技有限公司 | A kind of lever gas control valve |
| CN109489710B (en) * | 2018-10-16 | 2021-01-12 | 河南领聚网络科技有限公司 | Early warning fault detection equipment for machine manufacturing system |
| CN114877259B (en) * | 2022-05-12 | 2023-10-27 | 合肥市久环给排水燃气设备有限公司 | Gas pressure regulator capable of reducing fatigue damage |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6356369U (en) * | 1986-09-30 | 1988-04-15 | ||
| CN2570562Y (en) * | 2002-05-29 | 2003-09-03 | 舒国平 | Safety gas valve |
| CN201013988Y (en) * | 2007-02-07 | 2008-01-30 | 江苏江淮动力股份有限公司 | Pressure reducing valve |
| CN101551062B (en) * | 2008-04-04 | 2013-04-10 | 张珉 | Multifunctional fuel safety protecting device |
| CN201547353U (en) * | 2009-11-20 | 2010-08-11 | 刘波 | Gas safety self-closing valve |
| JP5102384B2 (en) * | 2011-05-12 | 2012-12-19 | 富士工器株式会社 | Diaphragm pressure regulator |
| CN103244727B (en) * | 2012-02-14 | 2016-01-20 | 罗达莱克斯阀门(上海)有限公司 | Regulator and pressure governor thereof |
| CN203703325U (en) * | 2014-01-09 | 2014-07-09 | 合肥远智自动化科技有限公司 | Precision pressure reducing valve for ultra-low pressure |
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2014
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