CN203770766U - Automatic fuel gas pressure regulator - Google Patents
Automatic fuel gas pressure regulator Download PDFInfo
- Publication number
- CN203770766U CN203770766U CN201420071537.2U CN201420071537U CN203770766U CN 203770766 U CN203770766 U CN 203770766U CN 201420071537 U CN201420071537 U CN 201420071537U CN 203770766 U CN203770766 U CN 203770766U
- Authority
- CN
- China
- Prior art keywords
- magnet
- base
- fixed base
- passage
- gas pressure
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Control Of Fluid Pressure (AREA)
Abstract
The utility model discloses an automatic fuel gas pressure regulator, and relates to a pressure regulator on a gas medium transmission pipeline. The automatic fuel gas pressure regulator is characterized in that the structure of a bone joint and the principle of magnet homogeneity repelling are adopted by a valve core to conduct flexible connecting and automatic centering, so that the valve core and a valve port can be fitted perfectly; compared with the prior art, the automatic fuel gas pressure regulator has the benefits as follows: the principles of the magnet homogeneity repelling and the bone joint connection are adopted by the valve core to conduct flexible connecting, so that the problems of reduction of the fitting degree of the valve core and the valve port, and the reduction of the stability due to the manufacturing and assembling precision or the abrasion aggravating after long-time application, which causes that the close pressure of the pressure regulator is raised, and the close pressure precision exceeds therequirements of a pressure system, can be solved; meanwhile, a magnet is arranged in the valve core, under the condition of not influencing the operation of the valve core, tiny iron scales in the gas airflow can be adsorbed, so that the impact on the pressure regulator and the inner walls of downstream pipes can be prevented.
Description
Technical field
The utility model relates to the pressure governor on a kind of gas medium conveyance conduit, especially a kind of gas pressure regulator, governor.
Background technique
Gas pressure regulator, governor is commonly called as gas pressure-reducing valve, is the restriction orifice size by automatic change pressure governor, thereby system pressure is reduced to certain scope, also must meet the equipment of the traffic requirement in downstream simultaneously.Conventionally be divided into two kinds of direct acting type and indirect acting types.When downstream user is during without traffic demand, pressure governor spool, near valve port, dwindles passage with limited flow.In the time that downstream flow increases, spool, away from valve port, increases its opening degree, augmented flow.From hydromechanical viewpoint, pressure governor is a throttle element that local resistance can change, and by changing orifice size, the kinetic energy of flow velocity and fluid is changed, and causes the different pressure losses, thereby reaches the object of decompression.Then rely on the adjusting of (mainly referring to be connected the main valve stem of diaphragm and connected lever, valve rod, spool, restriction etc.) of control system (mainly being formed with main spring by main film) and regulating system, make downstream pressure remain on a metastable value.
Gas pressure regulator, governor should be able to ease down to upstream pressure a stable downstream pressure; Simultaneously when downstream is during without traffic demand, upstream high pressure combustion gas can not be released into downstream low-pressure combustion gas, in order to avoid superpressure occurs in downstream, closing pressure will be in certain scope, and it is tight that this just requires the spool of pressure governor and valve port to have good Percent of contact area just can close.Existing gas regulating device spool all adopts and is rigidly connected, and owing to manufacturing and the error of assembling and the wearing and tearing while using for a long time, very easily causes the Percent of contact area decline of spool and valve port, thereby causes closing pressure higher than theoretic closing pressure.Again because adopt the impact that is subject to for a long time fuel gas flow while being rigidly connected, especially while thering is impurity and corrosivity composition in fluid, can cause the wearing and tearing aggravation of spool, occur spool and the valve port deviation of coincideing, mutual centering accurately, has also caused impact to closing pressure precision.
Summary of the invention
The utility model is for deficiency of the prior art, a kind of automatic gas pressure governor is provided, spool in the utility model utilizes magnet homopolar-repulsion to flexibly connect with the principle that bone joint is connected, not only solve because of manufacture and assembly precision or long-time spool and the reduction of valve port Percent of contact area that uses wearing and tearing aggravation to cause, stability decreases, thereby the closing pressure of pressure governor is raise, to such an extent as to exceeded the problem of the desired closing pressure precision of pressure system.Because this valve core inside has magnet, can in the case of not affecting the running of spool, adsorb the trickle iron filings in fuel gas flow simultaneously, prevent that trickle iron filings from impacting pressure governor and downstream tube inwall.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals: a kind of automatic gas pressure governor, comprise housing and regulator, in described housing, be provided with first passage and second passage, between described first passage and described second passage, be provided with valve port, directly over described valve port, be provided with spool, described spool comprises valve rod, valve seat, first fixed base, second fixed base and active base, described active base is movably arranged on described first fixed base, described first fixed base is fixedly connected with described valve seat, on described valve seat, be provided with through hole, described second fixed base is fixedly installed in described through hole, in described active base, be provided with first magnet, on described second fixed base, be provided with the second magnet corresponding with described first magnet, described first magnet is relative with described second magnet homopolarity, described valve rod one end is connected with described regulator, the other end is connected with described active base through described first fixed base.Arrange like this, active base and first fixed base flexibly connect, and active base connects valve rod, in the time that valve rod drives active base, skew can occur between active base and first fixed base and rotate, and improve the Percent of contact area of active base and valve port.Because homopolar magnet two like magnetic poles repel each other, utilize the principle of magnet two like magnetic poles repel each other can make again active base and the automatic centering of first fixed base again, recover vertical state, allow vertically centering valve port of valve seat.The magnetic force of magnet is comparatively constant simultaneously, in use can use for a long time.Valve seat bottom is provided with opening, magnet all the time with outside UNICOM, magnet can be drawn the trickle iron filings in fuel gas flow like this, protects whole device to be subject to iron filings impact.
In technique scheme, preferably, in described housing, be provided with lining, described lining is arranged in described valve port pros, described spool is also provided with supporting base, described supporting base is fixedly installed on described lining, and described valve rod one end is connected with described regulator, and the other end is connected with described active base through described supporting base and described first fixed base.Arrange like this, be provided with lining, by the isolated pressure regulating cavity of lining and supporting base and first passage, make again spool can be in lining up-down adjustment, the stability that keeps spool vertically to regulate.
In technique scheme, preferred, on described first fixed base, be provided with ball recess, in described active base, be provided with the hemisphere jut matching with described ball recess, described valve rod connects described hemisphere jut through described ball recess.Arrange like this, the similar bone articulation structure of hemisphere jut and ball recess, slides comparatively smooth and easy mutually, can make sensitive activity between first fixed base and active base by this structure.
In technique scheme, preferably, between described first fixed base and described valve seat, be fixedly installed elastomer diaphragm, described elastomer diaphragm another side is fixedly installed between described lining and described supporting base, formation activity chamber between described supporting base and described first fixed base, described movable chamber is by being arranged on gap between first conduction hole on described first fixed base and described first fixed base and the described active base first passage described in being communicated with.Formation activity chamber between first fixed base and supporting base, movable chamber and first channel connection, both sides air pressure balance when valve rod drives active base and valve seat to move are like this set like this.
In technique scheme, preferred, described first magnet is patty magnet, and affiliated second magnet is circular ring magnet, and described first magnet equates and consistency from top to bottom with described second magnet diameter.It is patty magnet that first magnet is set like this, and second magnet is that circular ring magnet can reduce by two moments between magnet, and making power suffered between two blocks of magnet most is mutual expelling force, reduces attraction force.
In technique scheme, preferred, described through hole lower end is provided with tapered opening, and it is large that described tapered opening becomes from the inside to surface gradually.Arrange like this, facilitate the trickle iron filings in fuel gas flow to be drawn by magnet.
Compared with prior art, the beneficial effects of the utility model are: interior spool utilizes magnet homopolar-repulsion to flexibly connect with the principle that bone joint is connected, not only solve because of manufacture and assembly precision or long-time spool and the reduction of valve port Percent of contact area that uses wearing and tearing aggravation to cause, stability decreases, thereby the closing pressure of pressure governor is raise, to such an extent as to exceeded the problem of the desired closing pressure precision of pressure system.Also, because this valve core inside has magnet, can in the case of not affecting the running of spool, adsorb the trickle iron filings in fuel gas flow, prevent that trickle iron filings from impacting pressure governor and downstream tube inwall.
Brief description of the drawings
Fig. 1 is the utility model cross-sectional schematic.
Fig. 2 is the utility model spool schematic diagram.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
As shown in Figure 1 and Figure 2, a kind of gas pressure regulator, governor, comprises housing 1, in housing 1, is provided with pressure regulating cavity, pressure regulating cavity separate under the effect of diaphragm 8, be divided into two mutual disconnected on pressure regulating cavity 2 and lower pressure regulating cavity 3, in pressure regulating cavity, be provided with regulator 4.In housing 1, be also provided with first passage 5 and second passage 6, between first passage 5 and second passage 6, be provided with valve port 7, valve port 7 tops are provided with spool 9, and spool 9 is connected with regulator 4, spool 9 comprises valve rod 91, and one end of valve rod 91 and regulator 4 is provided with the second through hole 911 of substantially horizontal.
Regulator 4 comprises the pressure adjusting spring 41 being arranged in pressure regulating cavity 2, pressure adjusting spring 41 lower ends are connected with first attachment post 42, first attachment post 42 extends in lower pressure regulating cavity 3 through separating diaphragm 8, first attachment post 42 lower ends are provided with first connection strap 43, first attachment post 42 bottoms are provided with the first through hole 421 of substantially horizontal, first connection strap 43 passes in first through hole 421 and is fixed in first through hole 421, for better using effect, first connection strap 43 stretches out the partial-length symmetry at first through hole 421 two ends, left and right.First connection strap 43 two ends are rotated respectively and are provided with first retaining member 441 and second retaining member 442, and first retaining member 441 and second retaining member 442, be rotatably connected to respectively first rotation strip 451 and second rotation strip 452.In lower pressure regulating cavity 3, be fixedly installed first fixing column 461 and second fixing column 462, on first rotation strip 451 and second rotation strip 452, be respectively arranged with first fixed hole 453 and second fixed hole 454, first rotation strip 451 and second rotation strip 452 rotate and are fixed on first fixing column 461 and described second fixing column 462 by being arranged on fixed block on first fixed hole 453 and second fixed hole 454.The other end of first rotation strip 451 and second rotation strip 452 extend in the second through hole 911 of valve rod 91, and be shaped as spherical, like this first rotation strip 451 and second rotation strip 452 just can with valve rod 91 seamless links, the simultaneously mutually more smooth and easy reaction of activity is sensitiveer.
Typically, the upstream that second passage 6 is fluid, the downstream that first passage 5 is fluid, first passage 5 is communicated with user terminal.Upper pressure regulating cavity 2 communicates with external atmosphere pressure, and first passage 5 communicates with lower pressure regulating cavity 3, is all the downstream pressure of fluid.Separate the downward equilibrium of forces of the suffered gas pressure upwards of diaphragm 8 and pressure adjusting spring 41.In the time of downstream fluid increase in demand in first passage 5, first passage 5 internal pressures decline, separating diaphragm 8 moves downward, because regulator 4 uses lever principle, spool 9 moves upward, make between spool 9 and valve port 7 orifice size increase, allow the downstream pressure in first passage 5 increase, from and keep the pressure balance between pressure regulating cavity 2 and lower pressure regulating cavity 3.Vice versa, in the time that the downstream fluid demand in first passage 5 reduces, to separate diaphragm 8 and move upward, spool 9 moves downward orifice size between spool 9 and valve port 7 is reduced, allow the downstream pressure in first passage 5 reduce, keep subsequently the pressure balance between upper pressure regulating cavity 2 and lower pressure regulating cavity 3.When the downstream fluid in first passage 5 is when asking, because the lever principle of regulator 4 makes spool 9 can obtain larger closing pressure, improve the precision of closing pressure again.
In housing 1, be provided with lining 10, lining 10 is arranged in the pros of valve port 7, and spool 9 is arranged on lining 10, and spool 9 not only comprises that valve rod 91 also comprises supporting base 92, valve seat 93, first fixed base 94, second fixed base 96 and active base 95.Supporting base 92 is fixedly installed on lining 10, and valve rod 91 is connected with active base 95 through supporting base 92 and first fixed base 94.First fixed base 94 is fixedly connected with valve seat 93, between first fixed base 94 and valve seat 93, elastomer diaphragm 11 is set, and elastomer diaphragm 11 another sides are fixedly installed between lining 10 and supporting base 92.On first fixed base 94, be provided with ball recess 941, in active base 95, be provided with and the movable hemisphere jut 951 coordinating of ball recess 941, hemisphere jut 951 and the similar bone articulation structure of ball recess 941, slide smooth and easy mutually, can sensitive adjusting first fixed base 94 and active base 95 by this structure.On valve seat 93, be provided with through hole 931, in through hole 931, be fixedly installed second fixed base 96, second fixed base 96 and active base 95 consistencies from top to bottom, through hole 931 is provided with tapered opening 932 to lower opening, and it is large that tapered opening 932 becomes from the inside to surface gradually.Active base 95 lower ends are provided with first magnet 952, and first magnet 952 is a patty magnet, on second fixed base 96, be provided with the relative consistency from top to bottom of first magnet 952 homopolarity second magnet 962, second magnet 962 is circular ring magnets.Arrange like this, can reduce by two moments between magnet, making power suffered between two blocks of magnet most is mutual expelling force, reduces attraction force.Formation activity chamber 12 between first fixed base 94 and supporting base 92, movable chamber 12 is communicated with described first passage 5 by the gap being arranged between first conduction hole 941 and first fixed base 94 and the active base 95 on first fixed base 94.Like this can be in the time that valve rod 91 regulates pressure balance between maintenance activity chamber 12 and first passage 5.
The working principle of gas pressure regulator, governor is: the upstream that second passage 6 is fluid, and the downstream that first passage 5 is fluid, first passage 5 is communicated with user terminal.Upper pressure regulating cavity 2 communicates with external atmosphere pressure, and first passage 5 communicates with lower pressure regulating cavity 3, is all the downstream pressure of fluid.Combustion gas enters first passage 5 from second passage 6 by valve port 7, first passage 5 is communicated with lower pressure regulating cavity 3, upper pressure regulating cavity 2 is generally communicated with ambient atmosphere, separation diaphragm 8 plays the effect of sensing, when first passage 5 combustion gas air pressure are when low, separate diaphragm 8 and move downward, force controlling device 4 to drive spool 9 to move up, increase the gas flow that enters first passage 5 from second passage 6; When otherwise first passage 5 fuel gas flow pressure raise, spool 9 moves down, and reduces the gas flow that enters first passage 5 from second passage 6.Gas pressure regulator, governor can keep downstream pressure stable all the time like this.In the time of close port 7, because spool 9 inside are by being used hemisphere jut 951 and the similar bone articulation structure of ball recess 941 to flexibly connect, the effect lower valve core 9 simultaneously repelling each other in first magnet 952 and second magnet 962 peers and valve port 7 can automatic centerings, make can effectively overcome the large problem of practical adjustments pressure ratio theoretical value in the process of spool 9 close port 7.Spool 9 has certain ability that automatically replies vertical state that also has in the time of deformability, has ensured the stability of gas pressure regulator, governor in the time of long-time use, and pressure regulation sensitivity and accuracy have extended working life of whole pressure governor.Last first magnet 952 and second magnet 962 and pipeline connection, can draw trickle iron filings in fuel gas flow, protects whole device to avoid being subject to iron filings and impact.
Claims (6)
1. an automatic gas pressure governor, comprise housing (1) and regulator (4), in described housing (1), be provided with first passage (5) and second passage (6), between described first passage (5) and described second passage (6), be provided with valve port (7), it is characterized by, directly over described valve port (7), be provided with spool (9), described spool (9) comprises valve rod (91), valve seat (93), first fixed base (94), second fixed base (96) and active base (95), described active base (96) is movably arranged on described first fixed base (94), described first fixed base (94) is fixedly connected with described valve seat (93), on described valve seat (93), be provided with through hole (931), described second fixed base (96) is fixedly installed in described through hole (931), in described active base (95), be provided with first magnet (952), on described second fixed base (96), be provided with the second magnet (962) corresponding with described first magnet (952), described first magnet (952) is relative with described second magnet (962) homopolarity, described valve rod (91) one end is connected with described regulator (4), the other end is connected with described active base (95) through described first fixed base (94).
2. a kind of automatic gas pressure governor according to claim 1, it is characterized by, in described housing (1), be provided with lining (10), described lining (10) is arranged in described valve port (7) pros, described spool (9) is also provided with supporting base (92), described supporting base (92) is fixedly installed on described lining (10), described valve rod (91) one end is connected with described regulator (4), and the other end is connected with described active base (95) through described supporting base (92) and described first fixed base (94).
3. a kind of automatic gas pressure governor according to claim 2, it is characterized by, on described first fixed base (94), be provided with ball recess (941), in described active base (95), be provided with the hemisphere jut (951) matching with described ball recess (941), described valve rod (91) connects described hemisphere jut (951) through described ball recess (941).
4. a kind of automatic gas pressure governor according to claim 2, it is characterized by, between described first fixed base (94) and described valve seat (93), be fixedly installed elastomer diaphragm (11), described elastomer diaphragm (11) another side is fixedly installed between described lining (10) and described supporting base (92), formation activity chamber (12) between described supporting base (92) and described first fixed base (94), described movable chamber (12) is by being arranged on gap between first conduction hole (951) on described first fixed base (94) and described first fixed base (94) and described active base (95) the first passage (5) described in being communicated with.
5. a kind of automatic gas pressure governor according to claim 1, it is characterized by, described first magnet (952) is patty magnet, and affiliated second magnet (962) is circular ring magnet, described first magnet (952) and described second magnet (962) equal diameters and consistency from top to bottom.
6. a kind of automatic gas pressure governor according to claim 1, is characterized by, and described through hole (931) lower end is provided with tapered opening (932), and it is large that described tapered opening (932) becomes from the inside to surface gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420071537.2U CN203770766U (en) | 2014-02-19 | 2014-02-19 | Automatic fuel gas pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420071537.2U CN203770766U (en) | 2014-02-19 | 2014-02-19 | Automatic fuel gas pressure regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203770766U true CN203770766U (en) | 2014-08-13 |
Family
ID=51287957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420071537.2U Withdrawn - After Issue CN203770766U (en) | 2014-02-19 | 2014-02-19 | Automatic fuel gas pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203770766U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821977A (en) * | 2014-02-19 | 2014-05-28 | 森格斯输配设备(宁波)有限公司 | Automatic fuel gas pressure regulator |
-
2014
- 2014-02-19 CN CN201420071537.2U patent/CN203770766U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821977A (en) * | 2014-02-19 | 2014-05-28 | 森格斯输配设备(宁波)有限公司 | Automatic fuel gas pressure regulator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104197056B (en) | Adjustable flow dynamic balance valve | |
| CN201795125U (en) | Dynamic flow balancing valve | |
| CN203770766U (en) | Automatic fuel gas pressure regulator | |
| CN103821977A (en) | Automatic fuel gas pressure regulator | |
| CN203770780U (en) | Gas pressure regulator | |
| CN204922016U (en) | Hard sealing sleeve governing valve of bivalve core | |
| CN103615582A (en) | Pressure reduction valve | |
| CN203926972U (en) | A kind of differential pressure control valve | |
| CN202250582U (en) | Regulating and controlling device of leakage-stopping sealed gap of high-head radial-axial flow turbine runner | |
| CN203836229U (en) | Fuel gas pressure regulating device | |
| CN204025810U (en) | A kind of gas pressure regulator, governor | |
| CN103244725A (en) | Pressure reduction cavity structure for high-flow balanced pressure regulating valve | |
| CN105526393A (en) | Automatic flow regulating device for airborne oxygen production equipment | |
| CN206608591U (en) | A kind of constant pressure valve | |
| CN201715055U (en) | Adjustable non-return pressure relief valve | |
| CN210623247U (en) | Hydraulic reversing valve | |
| CN103307323A (en) | High-pressure reducing valve | |
| CN204512573U (en) | Axial flow pressure regulator | |
| CN204573223U (en) | Reduction valve | |
| CN209587252U (en) | A kind of self-power differential pressure balanced valve | |
| CN103644342A (en) | Pneumatic-control pollution-resistant zero-leakage cartridge pressure reducing valve | |
| CN220102073U (en) | Self-operated pressure regulating valve | |
| CN105042165B (en) | A kind of modified pressure-reducing valve | |
| CN201954065U (en) | Dynamic balancing valve and isobaric-pressure temperature-regulating and water-saving tap with same | |
| CN201836486U (en) | Indirect-action type pressure regulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140813 Effective date of abandoning: 20160907 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |