CN105605261A - Gas pressure reduction valve capable of implementing self-closing in case of failure - Google Patents
Gas pressure reduction valve capable of implementing self-closing in case of failure Download PDFInfo
- Publication number
- CN105605261A CN105605261A CN201610198341.3A CN201610198341A CN105605261A CN 105605261 A CN105605261 A CN 105605261A CN 201610198341 A CN201610198341 A CN 201610198341A CN 105605261 A CN105605261 A CN 105605261A
- Authority
- CN
- China
- Prior art keywords
- pressure reduction
- channel
- feedback channel
- pressure
- gas
- 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.)
- Granted
Links
Classifications
-
- 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
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention discloses a gas pressure reduction valve capable of implementing self-closing in case of a failure. The gas pressure reduction valve comprises a valve body, wherein the valve body is provided with a gas inlet channel, a gas outlet channel, a ventilation hole and a feedback channel, wherein a pressure reduction part is arranged between the gas inlet channel and the gas outlet channel; a pressure regulation part is arranged between the ventilation hole and the feedback channel; the valve body is connected with a pressure regulation screw; a pressure regulation seat is arranged in the feedback channel; the pressure reduction part comprises a pressure reduction valve core and a pressure reduction valve seat; the pressure reduction valve seat is a cylindrical structure of which the outer side is provided with an external thread; the pressure reduction valve seat is connected to the inside of the gas inlet channel through the threads; the pressure reduction valve core is positioned in the gas outlet channel; the pressure reduction valve seat and the pressure reduction valve core are respectively provided with a groove and a bulge of which the cross sections are conical; the bulge is over against the groove; the gas inlet channel is connected with a plugging part; the plugging part comprises a gas inlet pipe, a baffle and steel balls; and the baffle is provided with a spherical groove. The gas pressure reduction valve has the advantages of high controllability on the pressure reduction effect and low operating maintenance cost, is convenient for failure recovery, and can implement self interception in case of overflowing.
Description
Technical field
The present invention relates to Compressed Gas decompressor field, particularly relate to one and can realize the self-closing gas pressure reducer of fault.
Background technology
Along with natural gas utilization is more and more extensive, various forms of pressure-reducing valves emerge in an endless stream, and the further optimization of natural gas pressure-reducing valve structure will further be promoted to the utilization of natural gas. Taking environmental consciousness as example, natural gas can greatly reduce Vehicular exhaust for the fuel of vehicle motor and pollute, but in order to improve the single aeration stroke of the vehicle taking natural gas as fuel, on vehicle, be provided with gas cylinder for accommodating natural gas, and the gas pressure that is finally incorporated into cylinder is generally several kPas, like this, it is particularly important that the pressure-reducing valve that high-pressure natural gas is reduced pressure seems, simultaneously in practice, the stability of above pressure-reducing valve performance has also been reacted on the power of vehicle even in traffic safety intuitively.
Gas combustion automobile in the process of moving, in its gas cylinder, gas pressure can reduce gradually, like this, for obtaining stable low pressure natural gas output or different engine power output, between the step-down spool of pressure-reducing valve and valve seat frequently relative motion with adjust output gas pressure, and gas passage air-flow between above step-down spool and valve seat is very fast, be no matter in gas circuit impurity wash away or step-down spool and valve seat between friction, all can cause pressure-reducing valve degradation, even impurity effect step-down spool and valve seat closure, like this, gas pressure in the long-time inactive state lower cylinder of vehicle will slowly raise, cause igniting or other engine failure, the further optimization of gas pressure reducer valve core structure is seemed to particularly important.
Summary of the invention
For the above-mentioned existing problem that seems particularly important to the further optimization of gas pressure reducer valve core structure, the invention provides one and can realize the self-closing gas pressure reducer of fault.
For addressing the above problem, one provided by the invention can realize the self-closing gas pressure reducer of fault and solve problem by following technical essential: one can realize the self-closing gas pressure reducer of fault, comprise valve body, on described valve body, be provided with inlet channel, outlet passageway, spiracle and feedback channel, between described inlet channel and outlet passageway, be provided with step-down portion, between spiracle and feedback channel, be provided with pressure-regulating portion, the arrival end of feedback channel and the port of export communicate with inlet channel and outlet passageway respectively, pressure regulating screw has also been threaded on described valve body, one end of described pressure regulating screw is stretched in feedback channel, and the end that pressure regulating screw stretches into one end of feedback channel is taper, in feedback channel, be also provided with the pressure regulating seat with feedback channel matched in clearance, described pressure regulating seat is hollow, end is provided with the adjusting pressuring valve core of taper, sidewall is provided with the column structure of air inlet and gas outlet, pressure regulating screw stretches into a proper pressure valve core of exchanging of feedback channel,
Described step-down portion comprises step-down spool and step-down valve seat, described step-down valve seat is that arranged outside has externally threaded cylindrical-shaped structure, and step-down valve seat is threaded in inlet channel, step-down spool is positioned at outlet passageway, and on step-down valve seat and step-down spool, be respectively arranged with the tapered groove in cross section and projection, described projection is just to described groove;
On described inlet channel, be connected with leak stopping portion, described leak stopping portion comprises and is connected to the air inlet pipe that communicates on valve body and with inlet channel, is arranged on baffle plate on air inlet pipe inwall, is positioned at the steel ball of air inlet pipe, is provided with the ball recess that diameter equates with steel ball size on described baffle plate.
Concrete, pressure regulating screw, the pressure regulating seat of setting are pressure-regulating portion, and source of the gas is introduced by inlet channel, enters into outlet passageway complete step-down through the gap between the groove and the projection that arrange respectively on step-down spool and step-down valve seat, in the feedback channel arranging, the entrance of feedback channel communicates with inlet channel, gases at high pressure are just introduced in pressure regulating seat, in the port of export and spiracle of feedback channel, preferably the port of export of feedback channel is arranged on to the front end of gas channel between pressure regulating seat and pressure regulating screw, the arrival end that is feedback channel is connected with gas outlet by the air inlet on pressure regulating seat respectively with the port of export, spiracle is arranged on the rear end of described gas channel, be after adjusting pressuring valve core, sheathed O type circle between the air inlet of pressure regulating seat and gas outlet, like this, gap adjustment between pressure regulating seat and pressure regulating screw is passed into the size of air-flow in spiracle, like this, the pressure of feedback channel rear end force step-down spool away from or move towards step-down valve seat, reach the object of adjusting air-flow size between step-down spool and step-down valve seat, like this, be convenient to obtain gas pressure size after different decompressions, ball recess on steel ball and the baffle plate arranging cuts off inlet channel in the time that flow is larger for the present invention: use concrete, the valve rear end of pressure-reducing valve is generally gas equipment, the operating mode of gas equipment is compared with pressure-reducing valve front end pipeline operating mode complexity, as the vibrations of himself, the pressure of rear end pipeline frequent fluctuation, gas equipment fault etc. all may cause rear end pipeline or gas equipment fault, the steel ball arranging is positioned at the front end of the ball recess on baffle plate, lost efficacy at pressure-reducing valve back-end sealing, when step-down portion or equipment fault produce, if the flow of inlet channel increases suddenly, steel ball under the washing away of air-flow towards baffle plate lateral movement, last steel ball falls into ball recess and blocks air inlet pipe, realize fault from cutout function.
In this programme, owing to adopting pressure regulating seat and feedback channel matched in clearance, step-down valve seat is threaded with inlet channel, pressure regulating screw is connected with valve body screw thread version, spool for pressure regulation and decompression in the present invention can be separated with valve body easily, be convenient to the examination and maintenance of above two spools, can make that effect of easing stress of the present invention is controlled, operation expense is low, that fault is got rid of is convenient.
The outer surface of steel ball or the surface of ball recess preferably arrange rubber sealant, to promote the cut-out performance to air inlet pipe under fault self closing operating mode of the present invention.
As preferred version of the present invention, screen pack is set on inlet channel, and described screen pack is positioned at the front end of feedback channel arrival end, with the impurity in isolated high-voltage gas, reduce the impact of impurity on above two kinds of spools and be beneficial to the quality of follow-up low pressure gas, gs-oil separator is set on outlet passageway, to remove water or the oil separated out after decompression.
Further technical scheme is:
For promoting the sensitivity of steel ball to variations in flow perception in air inlet pipe, make whole air-flows of air inlet pipe all can wash away to steel ball in flow process, on the inwall of described air inlet pipe, be also provided with deflector, described deflector, steel ball and baffle plate are positioned at section straight length, and steel ball is between deflector and baffle plate.
For ease of reducing volume of the present invention, be beneficial to processing of the present invention, reduce the quantity of sealing surface on valve body, described outlet passageway, inlet channel, feedback channel and spiracle form by least one section of straight hole section. Above structure is convenient to valve body to arrange as a whole, form by boring processes inlet channel, outlet passageway, feedback channel and spiracle, and the openend of above inlet channel, outlet passageway, feedback channel and spiracle can be sealed by the version of gas thread screw fit sealing gasket.
For promoting the feedback response speed of described step-down spool, the collision of buffering step-down spool and step-down valve seat, the spring that is also provided with two ends in described outlet passageway and acts on respectively outlet passageway wall and step-down spool, described spring, step-down spool and step-down valve seat are all positioned at same straight hole section. Further, can on step-down spool, diaphragm be set, diaphragm on spring and roll extrusion spool interacts, described diaphragm and outlet passageway inner wall sealing, and the precision of feedback channel gas pressure is convenient to improve step-down spool and is subject in above setting.
For preventing the non-artificial rotation of described pressure regulating screw, affect of the present invention go out atmospheric pressure, on described pressure regulating screw, be also provided with two ends and act on respectively the elastic component of pressure regulating screw and valve body.
Because spring can be out of shape in the larger context compared to other elastic components, for making pressure regulating screw all have active force to pressure regulating screw all the time at pressure regulation process Elastic part, described elastic component is Compress Spring.
The present invention has following beneficial effect:
1, the present invention is simple in structure, owing to adopting pressure regulating seat and feedback channel matched in clearance, step-down valve seat is threaded with inlet channel, pressure regulating screw is connected with valve body screw thread version, spool for pressure regulation and decompression in the present invention can be separated with valve body easily, be convenient to the examination and maintenance of above two spools, can make that effect of easing stress controllability of the present invention is good, operation expense is low, that fault is got rid of is convenient.
2, ball recess on steel ball and the baffle plate arranging cuts off inlet channel in the time that flow is larger for the present invention: use concrete, the valve rear end of pressure-reducing valve is generally gas equipment, the operating mode of gas equipment is compared with pressure-reducing valve front end pipeline operating mode complexity, as the vibrations of himself, the pressure of rear end pipeline frequent fluctuation, gas equipment fault etc. all may cause rear end pipeline or gas equipment fault, the steel ball arranging is positioned at the front end of the ball recess on baffle plate, lost efficacy at pressure-reducing valve back-end sealing, when step-down portion or equipment fault produce, if the flow of inlet channel increases suddenly, steel ball under the washing away of air-flow towards baffle plate lateral movement, last steel ball falls into ball recess and blocks air inlet pipe, realize the present invention and also there is fault from cutout function.
Brief description of the drawings
Fig. 1 is a kind of structural representation of realizing a specific embodiment of the self-closing gas pressure reducer of fault of the present invention.
Figure acceptance of the bid note is respectively: 1, spiracle, 2, adjusting pressuring valve core, 3, sealing gasket, 4, pressure regulating seat, 5, feedback channel, 6, valve body, 7, step-down spool, 8, step-down valve seat, 9, inlet channel, 10, outlet passageway, 11, pressure regulating screw, 12, elastic component, 13, air inlet pipe, 14, baffle plate, 15, steel ball, 16, deflector.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but structure of the present invention is not limited only to following examples:
Embodiment 1:
As shown in Figure 1, one can realize the self-closing gas pressure reducer of fault, comprise valve body 6, on described valve body 6, be provided with inlet channel 9, outlet passageway 10, spiracle 1 and feedback channel 5, between described inlet channel 9 and outlet passageway 10, be provided with step-down portion, between spiracle 1 and feedback channel 5, be provided with pressure-regulating portion, the arrival end of feedback channel 5 and the port of export communicate with inlet channel 9 and outlet passageway 10 respectively, pressure regulating screw 11 has also been threaded on described valve body 6, one end of described pressure regulating screw 11 is stretched in feedback channel 5, and the end that pressure regulating screw 11 stretches into one end of feedback channel 5 is taper, in feedback channel 5, be also provided with the pressure regulating seat 4 with feedback channel 5 matched in clearance, described pressure regulating seat 4 is hollow, end is provided with the adjusting pressuring valve core 2 of taper, sidewall is provided with the column structure of air inlet and gas outlet, pressure regulating screw 11 stretches into a proper pressure valve core 2 of exchanging of feedback channel 5,
Described step-down portion comprises step-down spool 7 and step-down valve seat 8, described step-down valve seat 8 is externally threaded cylindrical-shaped structure for arranged outside has, and step-down valve seat 8 is threaded in inlet channel 9, step-down spool 7 is positioned at outlet passageway 10, and on step-down valve seat 8 and step-down spool 7, be respectively arranged with the tapered groove in cross section and projection, described projection is just to described groove;
On described inlet channel 9, be connected with leak stopping portion, described leak stopping portion comprises and is connected to the air inlet pipe 13 that communicates on valve body 6 and with inlet channel 9, is arranged on baffle plate 14 on air inlet pipe 13 inwalls, is positioned at the steel ball 15 of air inlet pipe 13, is provided with the ball recess of diameter and steel ball 15 equal diameters on described baffle plate 14.
In the present embodiment, pressure regulating screw 11, the pressure regulating seat 4 of setting are pressure-regulating portion, and source of the gas is introduced by inlet channel 9, enter into outlet passageway 10 complete step-down through the gap between the groove and the projection that arrange respectively on step-down spool 7 and step-down valve seat 8, in the feedback channel 5 arranging, the entrance of feedback channel 5 communicates with inlet channel 9, gases at high pressure are just introduced in pressure regulating seat 4, in the port of export of feedback channel 5 and spiracle 1, preferably the port of export of feedback channel 5 is arranged on to the front end of gas channel between pressure regulating seat 4 and pressure regulating screw 11, spiracle 1 is arranged on the rear end of described gas channel, like this, gap adjustment between pressure regulating seat 4 and pressure regulating screw 11 is passed into the size of air-flow in spiracle 1, like this, the pressure of feedback channel 5 rear ends force step-down spool 7 away from or move towards step-down valve seat 8, reach the object of adjusting air-flow size between step-down spool 7 and step-down valve seat 8, like this, be convenient to obtain gas pressure size after different decompressions, ball recess on steel ball 15 and the baffle plate 14 arranging cuts off inlet channel 9 in the time that flow is larger for the present invention: use concrete, the valve rear end of pressure-reducing valve is generally gas equipment, the operating mode of gas equipment is compared with pressure-reducing valve front end pipeline operating mode complexity, as the vibrations of himself, the pressure of rear end pipeline frequent fluctuation, gas equipment fault etc. all may cause rear end pipeline or gas equipment fault, the steel ball 15 arranging is positioned at the front end of the ball recess on baffle plate 14, lost efficacy at pressure-reducing valve back-end sealing, when step-down portion or equipment fault produce, if the flow of inlet channel 9 increases suddenly, steel ball under the washing away of air-flow towards baffle plate lateral movement, last steel ball 15 falls into ball recess and blocks air inlet pipe 13, realize fault from cutout function.
In this programme, owing to adopting pressure regulating seat 4 and feedback channel 5 matched in clearance, step-down valve seat 8 is threaded with inlet channel 9, pressure regulating screw 11 is threaded with valve body 6 version, spool for pressure regulation and decompression in the present invention can be separated with valve body 6 easily, be convenient to the examination and maintenance of above two spools, can make that effect of easing stress of the present invention is controlled, operation expense is low, that fault is got rid of is convenient.
As preferred version of the present invention, on inlet channel 9, screen pack is set, and described screen pack is positioned at the front end of feedback channel 5 arrival ends, with the impurity in isolated high-voltage gas, reduce the impact of impurity on above two kinds of spools and be beneficial to the quality of follow-up low pressure gas, on outlet passageway 10, gs-oil separator is set, to remove water or the oil separated out after decompression.
Embodiment 2:
The present embodiment is further qualified on the basis of embodiment 1, as shown in Figure 1, for ease of reducing volume of the present invention, be beneficial to processing of the present invention, reduce the quantity of sealing surface on valve body 6, described outlet passageway 10, inlet channel 9, feedback channel 5 and spiracle 1 form by least one section of straight hole section. Above structure is convenient to valve body 6 to arrange as a whole, form by boring processes inlet channel 9, outlet passageway 10, feedback channel 5 and spiracle 1, and the openend of above inlet channel 9, outlet passageway 10, feedback channel 5 and spiracle 1 can be sealed by the version of gas thread screw fit sealing gasket 3.
For promoting the feedback response speed of described step-down spool 7, the collision of buffering step-down spool 7 and step-down valve seat 8, in described outlet passageway 10, be also provided with the spring that two ends act on respectively outlet passageway 10 walls and step-down spool 7, described spring, step-down spool 7 and step-down valve seat 8 are all positioned at same straight hole section. Further, can on step-down spool 7, diaphragm be set, diaphragm on spring and roll extrusion spool interacts, described diaphragm and outlet passageway 10 inner wall sealings, and the precision of feedback channel 5 gas pressures is convenient to improve step-down spool 7 and is subject in above setting.
For promoting the sensitivity of steel ball 15 to variations in flow perception in air inlet pipe 13, make whole air-flows of air inlet pipe 13 all can wash away to steel ball 15 in flow process, on the inwall of described air inlet pipe 13, be also provided with deflector 16, described deflector 16, steel ball 15 and baffle plate 14 are positioned at section straight length, and steel ball 15 is between deflector 16 and baffle plate 14.
In the present embodiment, for ease of change the steel ball 15 of different quality according to gas consumption, adopt the version of air inlet pipe 13 and valve body 6 releasable connections or deflector 16 and air inlet pipe 13 releasable connections.
Embodiment 3:
The present embodiment is further qualified on the basis of embodiment 1, as shown in Figure 1, for preventing the non-artificial rotation of described pressure regulating screw 11, affect of the present invention go out atmospheric pressure, on described pressure regulating screw 11, be also provided with two ends and act on respectively the elastic component 12 of pressure regulating screw 11 and valve body 6.
Because spring can be out of shape in the larger context compared to other elastic components 12, for making pressure regulating screw 11 all have active force to pressure regulating screw 11 all the time at pressure regulation process Elastic part 12, described elastic component 12 is Compress Spring.
Above content is the further description of the present invention being done in conjunction with concrete preferred embodiment, can not assert that the specific embodiment of the present invention is confined to these explanations. For general technical staff of the technical field of the invention, not departing from other embodiments that draw under technical scheme of the present invention, all should be included in protection scope of the present invention.
Claims (6)
1. can realize the self-closing gas pressure reducer of fault for one kind, comprise valve body (6), on described valve body (6), be provided with inlet channel (9), outlet passageway (10), spiracle (1) and feedback channel (5), between described inlet channel (9) and outlet passageway (10), be provided with step-down portion, between spiracle (1) and feedback channel (5), be provided with pressure-regulating portion, the arrival end of feedback channel (5) and the port of export communicate with inlet channel (9) and outlet passageway (10) respectively, it is characterized in that, pressure regulating screw (11) has also been threaded on described valve body (6), one end of described pressure regulating screw (11) is stretched in feedback channel (5), and the end that pressure regulating screw (11) stretches into one end of feedback channel (5) is taper, in feedback channel (11), be also provided with the pressure regulating seat (4) with feedback channel (11) matched in clearance, described pressure regulating seat (4) is hollow, end is provided with the adjusting pressuring valve core (2) of taper, sidewall is provided with the column structure of air inlet and gas outlet, pressure regulating screw (11) stretches into a proper pressure valve core (2) of exchanging of feedback channel (5),
Described step-down portion comprises step-down spool (7) and step-down valve seat (8), described step-down valve seat (8) is externally threaded cylindrical-shaped structure for arranged outside has, and step-down valve seat (8) is threaded in inlet channel (9), step-down spool (7) is positioned at outlet passageway (10), and on step-down valve seat (8) and step-down spool (7), be respectively arranged with the tapered groove in cross section and projection, described projection is just to described groove;
Described inlet channel is connected with leak stopping portion on (9), described leak stopping portion comprises and is connected to the upper and air inlet pipe (13) that communicates with inlet channel (9) of valve body (6), is arranged on baffle plate (14) on air inlet pipe (13) inwall, is positioned at the steel ball (15) of air inlet pipe (13), is provided with the ball recess of diameter and steel ball (15) equal diameters on described baffle plate (14).
2. one according to claim 1 can realize the self-closing gas pressure reducer of fault, it is characterized in that, on the inwall of described air inlet pipe (13), be also provided with deflector (16), described deflector (16), steel ball (15) and baffle plate (14) are positioned at section straight length, and steel ball (15) is positioned between deflector (16) and baffle plate (14).
3. one according to claim 1 can realize the self-closing gas pressure reducer of fault, it is characterized in that, described outlet passageway (10), inlet channel (9), feedback channel (5) and spiracle (1) form by least one section of straight hole section.
4. one according to claim 3 can realize the self-closing gas pressure reducer of fault, it is characterized in that, in described outlet passageway (10), be also provided with the spring that two ends act on respectively outlet passageway (10) wall and step-down spool (7), described spring, step-down spool (7) and step-down valve seat (8) are all positioned at same straight hole section.
5. one according to claim 1 can realize the self-closing gas pressure reducer of fault, it is characterized in that, is also provided with two ends and acts on respectively the elastic component (12) of pressure regulating screw (11) and valve body (6) on described pressure regulating screw (11).
6. one according to claim 5 can realize the self-closing gas pressure reducer of fault, it is characterized in that, described elastic component (12) is Compress Spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610198341.3A CN105605261B (en) | 2016-04-01 | 2016-04-01 | A kind of self-closing gas pressure reducer of achievable failure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610198341.3A CN105605261B (en) | 2016-04-01 | 2016-04-01 | A kind of self-closing gas pressure reducer of achievable failure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105605261A true CN105605261A (en) | 2016-05-25 |
| CN105605261B CN105605261B (en) | 2018-09-11 |
Family
ID=55985443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610198341.3A Active CN105605261B (en) | 2016-04-01 | 2016-04-01 | A kind of self-closing gas pressure reducer of achievable failure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105605261B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825835A (en) * | 2018-07-24 | 2018-11-16 | 银川市长城液压有限责任公司 | A kind of direct acting stacked compression release valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761682A (en) * | 2010-02-09 | 2010-06-30 | 费斯托(中国)有限公司 | Soft starting valve |
| CN201715057U (en) * | 2010-06-18 | 2011-01-19 | 同济大学 | Balance piston induction type pneumatic pressure relief valve |
| US20110277854A1 (en) * | 2009-02-02 | 2011-11-17 | Hiroaki Yamamoto | Pressure reducing valve |
| CN205479567U (en) * | 2016-04-01 | 2016-08-17 | 成都科盛石油科技有限公司 | Gaseous relief pressure valve with trouble is from closing function |
-
2016
- 2016-04-01 CN CN201610198341.3A patent/CN105605261B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110277854A1 (en) * | 2009-02-02 | 2011-11-17 | Hiroaki Yamamoto | Pressure reducing valve |
| CN101761682A (en) * | 2010-02-09 | 2010-06-30 | 费斯托(中国)有限公司 | Soft starting valve |
| CN201715057U (en) * | 2010-06-18 | 2011-01-19 | 同济大学 | Balance piston induction type pneumatic pressure relief valve |
| CN205479567U (en) * | 2016-04-01 | 2016-08-17 | 成都科盛石油科技有限公司 | Gaseous relief pressure valve with trouble is from closing function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825835A (en) * | 2018-07-24 | 2018-11-16 | 银川市长城液压有限责任公司 | A kind of direct acting stacked compression release valve |
| CN108825835B (en) * | 2018-07-24 | 2024-04-19 | 银川市长城液压有限责任公司 | Direct-acting superposition type pressure reducing valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105605261B (en) | 2018-09-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110864147B (en) | Cut-adjusting integrated pressure regulator and integrated gas pressure regulating core | |
| CN205534292U (en) | Step -down mechanism | |
| CN106369200B (en) | A kind of gas spring overflow valve | |
| CN105605275A (en) | Natural gas pressure reduction mechanism | |
| CN105605261A (en) | Gas pressure reduction valve capable of implementing self-closing in case of failure | |
| CN204403489U (en) | A kind of piston type pressure maintaining valve | |
| CN205479567U (en) | Gaseous relief pressure valve with trouble is from closing function | |
| CN204879017U (en) | Be applied to pressure regulator that outlet pressure adjusted on gas pressure governing valve | |
| CN104595498A (en) | Automobile pressure reducing valve | |
| CN205479549U (en) | Gaseous relief pressure valve convenient to change case | |
| CN105864441A (en) | Pressure reduction device | |
| CN205479550U (en) | Natural gas relief pressure valve | |
| CN203978621U (en) | Constant-pressure exhaust braking butterfly valve | |
| CN205534441U (en) | There is not gas of leakage relief pressure valve | |
| CN202302157U (en) | Pressure reducing valve | |
| CN202914274U (en) | Clearance adjusting device of compressor air cylinder | |
| CN107763262A (en) | A kind of gas pressure reducer for being convenient for changing valve element | |
| CN105782527A (en) | Gas pressure relief valve with valve cores convenient to replace | |
| CN204878898U (en) | Pressure adjustment piston with pressure buffer function | |
| CN201844084U (en) | Novel stainless-steel pressure reducer | |
| CN201152364Y (en) | Gas relief valve flow control device | |
| CN107763261A (en) | A kind of self-closing gas pressure reducer of achievable failure | |
| CN203868442U (en) | Carbon dioxide pressure reducing valve | |
| CN202612752U (en) | Pressure stabilization type reducing valve | |
| CN204533546U (en) | A kind ofly be convenient to the automobile pressure reducing valve limiting the highest outlet pressure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180801 Address after: 510000 room 701-702, science and technology building, 1 Fangcun Road, Liwan District, Guangzhou, Guangdong. Applicant after: Guangzhou Guang steel gas energy Co., Ltd. Address before: 610000 Chengdu hi tech Zone Shiyang Industrial Park, Sichuan Applicant before: Chengdu Kesheng Petroleum Technology Co., Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Room 701-702, Science and Technology Building, No. 1 Fangcun Avenue, Liwan District, Guangzhou City, Guangdong Province (Office only) Patentee after: Guangzhou Guangzhou Steel Gas Energy Co., Ltd. Address before: 510000 room 701-702, science and technology building, 1 Fangcun Road, Liwan District, Guangzhou, Guangdong. Patentee before: Guangzhou Guang steel gas energy Co., Ltd. |
|
| CP03 | Change of name, title or address |