CN103759064A - Ultralow-pressure precise pressure reducing valve - Google Patents
Ultralow-pressure precise pressure reducing valve Download PDFInfo
- Publication number
- CN103759064A CN103759064A CN201410009839.1A CN201410009839A CN103759064A CN 103759064 A CN103759064 A CN 103759064A CN 201410009839 A CN201410009839 A CN 201410009839A CN 103759064 A CN103759064 A CN 103759064A
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- Prior art keywords
- pressure
- magnetic
- upper cover
- central screw
- reducing valve
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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 invention relates to an ultralow-pressure precise pressure reducing valve and overcomes the defect the existing pressure reducing valves cannot generate ultralow pressure in the prior art. The middle of the upper cover of the pressure reducing valve is threadedly connected with an adjusting magnetic shaft seat. An active magnetic piece is fixedly mounted on the lower portion of the adjusting magnetic shaft seat. An air inlet nozzle and an air outlet nozzle are disposed on a pressure vessel. A support is mounted on the pressure vessel. A force transmission lever is mounted on the support through an elastic pin. A seal piece and a central screw are respectively fixed at two ends of the force transmission lever. The mounting position of the seal piece corresponds to the position of the air inlet nozzle. The middle of a pressure film is mounted on the central screw. A limit magnetic seat piece is fixedly mounted above the pressure film through the central screw. A passive magnetic piece is fixedly mounted above the limit magnetic seat piece. The passive magnetic piece and the active magnetic piece have the same polarities opposite to each other and the mounting positions of the two correspond to each other. The diameter of the pressure film is 200mm. By the pressure reducing valve, precise pressure reducing of ultralow-pressure is achieved via the large-diameter pressure film.
Description
Technical field
The present invention relates to reduction valve technical field, is a kind of super-low voltage precise pressure-reducing valve specifically.
Background technique
Traditional precise pressure-reducing valve is all realized the pressure adjustment more than 5000Pa at present, and the pressure below 5000Pa cannot normally not used owing to stablizing pressure after cannot adjusting or adjust.But need to use at present the industry of super-low voltage precise pressure-reducing valve and field very many, such as gas-tight door, gas cooker, gas water-heater and the polymeric membrane etc. of burnt gas wall hanging furnace, nuclear power plant, all need relevant device is detected or use with the super-low voltage of 100～5000Pa.But all due to because there is no to realize the super-low voltage pressure regulating equipment of 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 of being badly in need of solution.
Summary of the invention
The defect that the object of the invention is can not produce in order to solve reduction valve in prior art super-low voltage, provides 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 being installed together with upper cover, described pressure-sensitive diaphragm edge section is arranged between upper cover and pressure ware, described upper cover middle part is threaded and regulates magnetic axis seat, regulate the bottom of magnetic axis seat to be installed with initiatively magnetic sheet, described pressure ware is provided with air inlet nozzle and outlet nozzle, on pressure ware, bearing is installed, on bearing, by spring column pin, force transferring lever is installed, the two ends of force transferring lever are installed with respectively diaphragm seal and central screw, 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 that diaphragm seal is 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 that regulates 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 fixedly mounts by upper cover screw and pressure ware.
The material of described upper cover and pressure ware is low carbon steel, described passive magnetic sheet and the initiatively material of magnetic sheet are 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, adjusting magnetic axis seat and knob is aluminum alloy.
beneficial effect
A kind of super-low voltage precise pressure-reducing valve of the present invention, compared with prior art, owing to using large diameter pressure-sensitive diaphragm to realize the precision decompression of super-low voltage, its resolution rises to 10Pa from 100Pa, has improved the resolution of an order of magnitude.By passive magnetic sheet and initiatively the same sex between magnetic sheet relatively design, can utilize with the non-contact of the two like magnetic poles repel each other of magnet and apply precompression, avoided the perturbed force of both ends of the spring face spin friction generation, improved repeatability.By central screw, be arranged on the design in the chute of force transferring lever, can more guarantee to carry out more accurately super-low voltage adjustment.
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, the spacing magnetic support sheet of 4-, 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 that structure characteristic of the present invention and the effect reached are had a better understanding and awareness, in order to preferred embodiment and accompanying drawing, coordinate detailed explanation, be described as follows:
As shown in Figure 1, a kind of super-low voltage precise pressure-reducing valve of the present invention, comprises upper cover 1, pressure-sensitive diaphragm 3 and the pressure ware 2 being installed together with upper cover 1, and pressure-sensitive diaphragm 3 edge sections are arranged between upper cover 1 and pressure ware 2.Upper cover 1, pressure-sensitive diaphragm 3 and pressure ware 2 are that the reduction valve of realizing in prior art more than 5000Pa uses, and the whole edge of pressure-sensitive diaphragm 3 is folded by upper cover 1 and pressure ware 2, thereby whole valve body are divided into the air chamber of upper and lower two-part isolation.Upper cover 1 middle part is threaded and regulates magnetic axis seat 16, thereby regulates magnetic axis seat 16 on upper cover 1, to be rotated and to move up and down.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.Bearing 10 is installed on pressure ware 2, on bearing 10, by spring column pin 9, force transferring lever 8 is installed, by bearing 10 use spring column pins 9, do axle center and make force transferring lever 8 to spend a little rotation around 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 respectively diaphragm seal 13 and central screw 7, like this diaphragm seal 13 and central screw 7 with regard to similar as lever, when central screw 7 rises, 13 declines of diaphragm seal; When central screw 7 declines, 13 risings of diaphragm seal.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, by central screw 7, pressure-sensitive diaphragm 3, spacing magnetic support sheet 4 and passive magnetic sheet 6 is fixed and is integral.The mounting point of diaphragm seal 13 is corresponding with the position of air inlet nozzle 12, and diaphragm seal 13 is used for blocking air inlet nozzle 12, when central screw 7 rises, just can drive diaphragm seal 13 to decline, thereby get lodged on air inlet nozzle 12, avoids air inlet again.Passive magnetic sheet 6 is relative with active magnetic sheet 15 same sexes and mounting point is corresponding, being arranged on the active magnetic sheet 15 regulating on magnetic axis seat 16 and the opposing side magnetic pole that is arranged on the passive magnetic sheet 6 on spacing magnetic support sheet 4 is the same sex, if such as active magnetic sheet 15 is the N utmost point, passive magnetic sheet 6 is also the N utmost point; If initiatively magnetic sheet 15 is the S utmost point, passive magnetic sheet 6 is also the S utmost point.This mutual expelling force has played the effect of cylindrical spring, if use cylindrical spring, while there will be rotation knob 18, between cylindrical spring both ends of the surface and adjusting magnetic axis seat 16, produces frictional force, and precision is adjusted in impact.Therefore use initiatively magnetic sheet 15 and the mode that passive magnetic sheet 6 matches, cancelled elastic force, can not produce additional harmful power that other influences is stablized pressure precision, realized transmission power and discontiguous object.The diameter of pressure-sensitive diaphragm 3 is 200mm, preferably can guarantee 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 to pressure-sensitive diaphragm 3 power of 0.31N by calculating, the pressure of 100Pa can produce to pressure-sensitive diaphragm 3 power of 3.1N.The diameter of pressure-sensitive diaphragm 3 has increased, its compression area bearing when pressurized has also increased, during the pressurized air that can be so just 200～600kPa at cut-in pressure, directly transfer large pressure to little pressure, then in conjunction with regulating magnetic axis seat 16 to carry out accurate low pressure adjustment.The pressure-sensitive diaphragm diameter that used is in the prior art smaller, its lifting surface area is also smaller, during the pressurized air that is 200～600kPa at cut-in pressure, its huge compression shock, on the lifting surface area of minor diameter, also just cannot be realized large pressure to the conversion of little pressure.
As shown in Figures 2 and 3, on 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 when central screw 7 rises, diaphragm seal 13 is pressed on air inlet nozzle 12, can in chute 19, carry out short distance slip like this; And central screw 7 is when decline, when diaphragm seal 13 rises, central screw 7 also can carry out short distance slip in chute 19.Improved the operational safety of central screw 7 on force transferring lever 8, and the chute Activities Design by central screw 7 with force transferring lever 8, can when carrying out low pressure adjustment, increase the flexibility between central screw 7 and force transferring lever 8, more increase precision and degree of accuracy that low pressure is adjusted.Central screw 7 is that diaphragm seal 13 is to 4.63 times of spring column pin 9 distances to the distance of spring column pin 9, the repulsive force that passive like this magnetic sheet 6 receives is added to the power of diaphragm seal 13 and has been amplified 4.63 times by force transferring lever 8 by force transferring lever 8, precision is regulated more accurate, use power seldom can realize fine motion on force transferring lever 8, reach the requirement of accurate decompression.
In order to make rotation regulate magnetic axis seat 16 convenient, can also comprise knob bolts 17, knob bolts 17 is arranged on the top that regulates magnetic axis seat 16 by knob 18, so just can, by rotation knob 18, drive and regulate 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 by upper cover screw 14 and 2 fixed installations of pressure ware.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 difficult for being magnetized, and the component in valve body are played to the effect of magnetic shielding, make the more stable outside electromagnetic interference that is not subject to of performance.Passive magnetic sheet 6 and the initiatively material of magnetic sheet 15 are rubidium iron boron, are of a size of φ 25*3, and 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, be difficult for being magnetized and density little, from heavy and light.It is H62 brass with going out air nozzle 5 materials that air inlet chews 12, and turning forms.
When carrying out the whole assembling of the present invention, first on pressure ware 2, pack outlet nozzle 5 into, while being threaded into, apply anaerobic sealer, load onto equally air inlet nozzle 12, pack bearing 10 into, fixing with the bearing screw 11 of two M3*6 coiled hairs.At force transferring lever 8 one end embedding sealing sheets 13, alignd in 10 liang of holes of force transferring lever 8 and bearing, penetrate spring column pin 9.Passive magnetic sheet 6 applies anaerobic sealer and embeds spacing magnetic support sheet 4, notes the N utmost point 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, screws in central screw 7 fastening.The macropore that central screw 7 is aimed at the chute 19 of force transferring levers 8 moves to the other end while being inserted to the waist of central screw downwards, thereby central screw 7 is fixed on to force transferring lever 8 except on the other end of diaphragm seal 13.Then initiatively magnetic sheet 15 applies anaerobic sealer and embeds adjusting magnetic axis seat 16, note the N utmost point of active magnetic sheet 15 down, from the central lower of upper cover 1, screw in the external screw thread that regulates magnetic axis seat 16, with the stage casing of thread engagement to screw thread, put into knob 18, fixing by the coiled hair knob bolts 17 of M4*10.Finally the semicircle at pressure-sensitive diaphragm 3 edges is protruded in the limit groove of position embedment pressure ware 2, upper cover 1 is put into, the upper cover screw 14 of 12 M4*12 is fixed at diagonal angle.
During actual use, first carry out debug process, at air inlet nozzle 12 access pressurising equipment, on outlet nozzle 5, access pressure instrumentataion.When pressurized air that air inlet nozzle 12 cut-in pressures are 200～600kPa, the interior gas pressure of pressure ware 2 raises, now pressure-sensitive diaphragm 3 can be protruding upward, central screw 7 is moved up, by force transferring lever 8 make 13 pairs of air inlets of diaphragm seal chew 12 mouthful carry out shutoff, stoped the pressure rise of pressure ware 2 cavitys.By the pressure instrumentataion connecing on outlet nozzle 5, detect in real time, the pressure of the 200～600kPa stressed super-low voltage that changes on pressure-sensitive diaphragm 3 now, by adjusting knob 18, make to regulate magnetic axis seat 16 to rise and decline, according to the pressure instrumentataion connecing on outlet nozzle 5, observe, 16 super past next pressure is larger to regulate magnetic axis seat again; Regulate magnetic axis seat 16 to surpass up that pressure is less, by adjustment, regulate magnetic axis seat 16 to reach the precision of super-low voltage is adjusted.Adjusting knob 18, can make active magnet 15 and be changed by the repulsive force of moving magnet 6, thereby changes pressure balance point, reaches the object of pressure regulation.After debugging finishes, the super-low voltage after 5 directly output of outlet nozzle is debugged.When if the load volume that outlet nozzle 5 connects has leakage flow or while being connected on the use equipment replacement on outlet nozzle 5, the pressure of pressure ware 2 cavitys can decline, now the central position of pressure-sensitive diaphragm 3 can decline, by central screw 7, drive the left end perk of force transferring lever 8, between diaphragm seal 13 and air inlet nozzle 12, there is gap, pressure ware 2 gases that enter can make pressure ware 2 cavity internal pressures raise, and pressure just can make pressure keep a constant value by self-control like this.
More than show and described 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; what in above-described embodiment and specification, describe is principle of the present invention; 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 that the present invention requires 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) being 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), regulate the bottom of magnetic axis seat (16) to be installed with initiatively magnetic sheet (15), described pressure ware (2) is provided with air inlet nozzle (12) and outlet nozzle (5), bearing (10) is installed on pressure ware (2), bearing (10) is upper is provided with force transferring lever (8) by spring column pin (9), the two ends of force transferring lever (8) are installed with respectively diaphragm seal (13) and central screw (7), 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 that diaphragm seal (13) is 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), described knob bolts (17) is arranged on the top that regulates 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), it is upper that described bearing (10) is arranged on pressure ware (2) by bearing screw (11), and described upper cover (1) is by upper cover screw (14) and pressure ware (2) fixed installation.
5. a kind of super-low voltage precise pressure-reducing valve according to claim 3, it is characterized in that: the material of described upper cover (1) and pressure ware (2) is low carbon steel, described passive magnetic sheet (6) and the initiatively material of magnetic sheet (15) are rubidium iron boron, the material of pressure-sensitive diaphragm (3) and diaphragm seal (13) is nitrile butadiene rubber, and the material of described spacing magnetic support sheet (4), central screw (7), force transferring lever (8), bearing (10), adjusting magnetic axis seat (16) and knob (18) is 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 |
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| 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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| CN103759064A true CN103759064A (en) | 2014-04-30 |
| CN103759064B 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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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106186145A (en) * | 2016-09-26 | 2016-12-07 | 大庆市海油庆石油科技有限公司 | Sedimentation pot type is from rinsing air supporting |
| 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 |
| CN112414448A (en) * | 2018-10-16 | 2021-02-26 | 东莞理工学院 | Early warning fault detection equipment |
| CN114877259A (en) * | 2022-05-12 | 2022-08-09 | 合肥市久环给排水燃气设备有限公司 | Gas pressure regulator capable of reducing fatigue damage |
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| 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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| US4832313A (en) * | 1986-09-30 | 1989-05-23 | Aisin Seiki Kabushiki Kaisha | Solenoid valve |
| CN2570562Y (en) * | 2002-05-29 | 2003-09-03 | 舒国平 | Safety gas valve |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106186145A (en) * | 2016-09-26 | 2016-12-07 | 大庆市海油庆石油科技有限公司 | Sedimentation pot type is from rinsing air supporting |
| 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 |
| CN112414448A (en) * | 2018-10-16 | 2021-02-26 | 东莞理工学院 | Early warning fault detection equipment |
| CN114877259A (en) * | 2022-05-12 | 2022-08-09 | 合肥市久环给排水燃气设备有限公司 | Gas pressure regulator capable of reducing fatigue damage |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN103759064B (en) | 2015-12-16 |
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