CN107763262A - A kind of gas pressure reducer for being convenient for changing valve element - Google Patents
A kind of gas pressure reducer for being convenient for changing valve element Download PDFInfo
- Publication number
- CN107763262A CN107763262A CN201610678912.3A CN201610678912A CN107763262A CN 107763262 A CN107763262 A CN 107763262A CN 201610678912 A CN201610678912 A CN 201610678912A CN 107763262 A CN107763262 A CN 107763262A
- Authority
- CN
- China
- Prior art keywords
- valve element
- decompression
- feedback channel
- pressure regulating
- seat
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
-
- 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
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention discloses a kind of gas pressure reducer for being convenient for changing valve element, including valve body, inlet channel, outlet passageway, spiracle and feedback channel are provided with the valve body, decompression portion is provided between the inlet channel and outlet passageway, pressure-regulating portion is provided between spiracle and feedback channel, pressure regulating screw is threaded with the valve body, the pressure regulating seat coordinated with feedback channel gap is additionally provided with feedback channel；The decompression portion includes decompression valve element and decompression valve seat, the decompression valve seat is that outside is provided with externally threaded cylindrical-shaped structure, and decompression valve seat is threaded in inlet channel, decompression valve element is located in outlet passageway, and it is respectively arranged with the tapered groove in section and projection, groove described in the raised face on decompression valve seat and decompression valve element.Effect of easing stress controllability of the invention is good, operation expense is low, failture evacuation is convenient.
Description
Technical field
The present invention relates to compressed gas decompressor field, more particularly to a kind of gas decompression for being convenient for changing valve element
Valve.
Background technology
As natural gas is with more and more extensive, various forms of pressure-reducing valves emerge in an endless stream, to natural gas depressurization valve arrangement
Further optimization will further promote natural gas utilization.By taking environmental consciousness as an example, natural gas is used for the combustion of vehicle motor
Material can greatly reduce Vehicular exhaust pollution, but in order to improve the single aeration stroke using natural gas as the vehicle of fuel, on vehicle
Gas cylinder is provided with to be used to house natural gas, and the gas pressure for being finally introducing cylinder is generally several kPas,
So, the pressure-reducing valve depressurized to high-pressure natural gas is particularly important, while in practice, above decompression valve performance
Stability be also intuitively reacted on the power of vehicle even in traffic safety.
In the process of moving, gas pressure can be reduced gradually gas combustion automobile in its gas cylinder, so, for what is stablized
Low pressure natural gas exports or the output of different engine powers, will necessarily frequently phase between the decompression valve element and valve seat of pressure-reducing valve
To moving to adjust the pressure of output gas, and the gas passage air-flow being depressured above between valve element and valve seat is very fast, either
The friction washed away or be depressured between valve element and valve seat of impurity, can cause pressure-reducing valve degradation, or even impurity in gas circuit
Decompression valve element and valve seat closure are influenceed, so, the gas pressure in cylinder in the state of vehicle disables for a long time will slowly rise
Height, igniting or other engine failure, the further optimization to gas pressure reducer valve core structure is caused to be particularly important.
The content of the invention
The problem of being particularly important for the above-mentioned existing further optimization to gas pressure reducer valve core structure, this hair
It is bright to provide a kind of gas pressure reducer for being convenient for changing valve element.
To solve the above problems, a kind of gas pressure reducer for being convenient for changing valve element provided by the invention will by following technology
Put to solve problem：A kind of gas pressure reducer for being convenient for changing valve element, including valve body, be provided with the valve body inlet channel,
Outlet passageway, spiracle and feedback channel, decompression portion, spiracle and feedback are provided between the inlet channel and outlet passageway
Pressure-regulating portion is provided between passage, the arrival end and the port of export of feedback channel communicate with inlet channel and outlet passageway respectively, institute
State and pressure regulating screw is also threaded with valve body, one end of the pressure regulating screw is stretched into feedback channel, and pressure regulating screw stretches into
The end of one end of feedback channel is taper, and the pressure regulating seat coordinated with feedback channel gap is additionally provided with feedback channel, described
Pressure regulating seat is that hollow, end set has the adjusting pressuring valve core of taper, side wall to be provided with air inlet and the column structure of gas outlet, pressure regulation
Screw stretches into one end face adjusting pressuring valve core of feedback channel；
The decompression portion includes decompression valve element and decompression valve seat, and the decompression valve seat is that outside is provided with externally threaded cylindric knot
Structure, and be depressured valve seat and be threaded in inlet channel, decompression valve element is located in outlet passageway, and is depressured valve seat and decompression valve element
On be respectively arranged with the tapered groove in section and projection, groove described in the raised face.
Specifically, the pressure regulating screw set, pressure regulating seat are pressure-regulating portion, source of the gas is introduced by inlet channel, by dropping valve
Gap between the groove and projection that are set respectively on core and decompression valve seat, which enters, completes decompression in outlet passageway；What is set is anti-
In feedthrough road, the entrance of feedback channel is communicated with inlet channel, and gases at high pressure are just introduced into pressure regulating seat, and feedback channel goes out
In mouth end and spiracle, preferably the port of export of feedback channel is arranged between pressure regulating seat and pressure regulating screw before gas channel
End, i.e., the arrival end of feedback channel is connected by the air inlet on pressure regulating seat with gas outlet respectively with the port of export, and spiracle is set
In the rear end of the gas channel, i.e., after adjusting pressuring valve core, O-ring is arranged between the air inlet of pressure regulating seat and gas outlet, this
Sample, the gap adjustment between pressure regulating seat and pressure regulating screw are passed into the size of air-flow in spiracle, so, feedback channel rear end
Pressure forces decompression valve element to be moved away from or towards decompression valve seat, reaches air-flow size between adjustment decompression valve element and decompression valve seat
Purpose, so, be easy to obtain gas pressure size after different decompressions.
In this programme, be threadedly coupled due to coordinating, being depressured valve seat with feedback channel gap using pressure regulating seat with inlet channel,
The structure type that pressure regulating screw is connected with valve body screw thread so that be used for pressure regulation in the present invention and the valve element depressurized can easily and valve
Body separates, and is easy to the examination and maintenance of two above valve element, may be such that the effect of easing stress of the present invention is controllable, operation expense
Low, failture evacuation is conveniently.
As the preferred scheme of the present invention, screen pack is set on inlet channel, and the screen pack is located at feedback channel
The front end of arrival end, to isolate the impurity in gases at high pressure, reduce influence of the impurity to both the above valve element and beneficial to follow-up low
The quality calmed the anger, sets gs-oil separator on outlet passageway, to remove the water separated out after decompression or oil.
Further technical scheme is：
For ease of reducing the volume of the present invention, beneficial to the processing of the present invention, reduce the quantity of sealing surface on valve body, the outlet leads to
Road, inlet channel, feedback channel and spiracle are by least one section of straight hole section composition.Above structure is easy to valve body being arranged to one
Individual entirety, inlet channel, outlet passageway, feedback channel and spiracle are processed by the form of drilling, above inlet channel, gone out
The openend of gas passage, feedback channel and spiracle can be sealed by the structure type of pipe screw thread screw fit sealing gasket.
For lifted it is described decompression valve element feedback response speed, buffering decompression valve element be depressured valve seat collision, it is described go out
It is additionally provided with both ends in gas passage to be respectively acting on outlet passageway wall and be depressured the spring of valve element, the spring, decompression valve element
It is respectively positioned on decompression valve seat in same straight hole section.Further, diaphragm, spring and rolling valve element can be set on decompression valve element
On diaphragm interaction, the diaphragm and outlet passageway inner wall sealing, arrangement above is easy to improve decompression valve element logical by feedback
The precision of road gas pressure.
To prevent the non-artificial rotation of the pressure regulating screw, the outlet pressure of the present invention is influenceed, is also set on the pressure regulating screw
It is equipped with the elastic component that both ends are respectively acting on pressure regulating screw and valve body.
Because spring can deform compared to other elastic components in the larger context, to cause pressure regulating screw in pressure regulation
Elastic component all has active force to pressure regulating screw all the time in journey, and the elastic component is compression spring.
The invention has the advantages that：
The present invention is simple in construction, and due to being coordinated using pressure regulating seat with feedback channel gap, decompression valve seat and inlet channel screw thread connect
Connect, the structure type of pressure regulating screw and valve body screw thread connection so that the valve element for being used for pressure regulation and decompression in the present invention can be convenient
Separated with valve body, be easy to the examination and maintenance of two above valve element, may be such that the effect of easing stress controllability of the present invention is good, operation dimension
Shield cost is low, failture evacuation is convenient.
Brief description of the drawings
Fig. 1 is a kind of structural representation for one specific embodiment of gas pressure reducer for being convenient for changing valve element of the present invention
Figure.
Scheming acceptance of the bid note is respectively：1st, spiracle, 2, adjusting pressuring valve core, 3, sealing gasket, 4, pressure regulating seat, 5, feedback channel, 6, valve
Body, 7, decompression valve element, 8, decompression valve seat, 9, inlet channel, 10, outlet passageway, 11, pressure regulating screw, 12, elastic component.
Embodiment
With reference to embodiment, the present invention is described in further detail, but the present invention structure be not limited only to it is following
Embodiment：
Embodiment 1：
Air inlet is provided with as shown in figure 1, a kind of gas pressure reducer for being convenient for changing valve element, including valve body 6, on the valve body 6 to lead to
Road 9, outlet passageway 10, spiracle 1 and feedback channel 5, decompression portion is provided between the inlet channel 9 and outlet passageway 10,
Be provided with pressure-regulating portion between spiracle 1 and feedback channel 5, the arrival end and the port of export of feedback channel 5 respectively with inlet channel 9 and
Outlet passageway 10 is communicated, and pressure regulating screw 11 is also threaded with the valve body 6, and feedback is stretched into one end of the pressure regulating screw 11
In passage 5, and it is taper that pressure regulating screw 11, which stretches into the end of one end of feedback channel 5, is additionally provided with and feeds back in feedback channel 5
The pressure regulating seat 4 that the gap of passage 5 coordinates, the pressure regulating seat 4 are that hollow, end set has the adjusting pressuring valve core 2 of taper, side wall to be provided with
Air inlet and the column structure of gas outlet, pressure regulating screw 11 stretch into one end face adjusting pressuring valve core 2 of feedback channel 5；
The decompression portion includes decompression valve element 7 and decompression valve seat 8, and the decompression valve seat 8 is that outside is provided with externally threaded cylinder
Shape structure, and be depressured valve seat 8 and be threaded in inlet channel 9, decompression valve element 7 is located in outlet passageway 10, and is depressured valve seat 8
The tapered groove in section and projection, groove described in the raised face are respectively arranged with decompression valve element 7.
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, is passed through
The gap crossed on decompression valve element 7 and decompression valve seat 8 between the groove set respectively and projection, which is entered in outlet passageway 10, completes
Decompression；In the feedback channel 5 of setting, the entrance of feedback channel 5 communicates with inlet channel 9, and gases at high pressure are just introduced into pressure regulation
In seat 4, in the port of export and spiracle 1 of feedback channel 5, the port of export of feedback channel 5 is preferably arranged on pressure regulating seat 4 and pressure regulation
The front end of gas channel between screw 11, spiracle 1 are arranged on the rear end of the gas channel, so, pressure regulating seat 4 and pressure regulation spiral shell
Gap adjustment between nail 11 is passed into the size of air-flow in spiracle 1, and so, the pressure of the rear end of feedback channel 5 forces decompression
Valve element 7 moves away from or towards decompression valve seat 8, reaches adjustment decompression valve element 7 and is depressured the purpose of air-flow size between valve seat 8,
So, it is easy to obtain gas pressure size after different decompressions.
In this programme, due to being coordinated using pressure regulating seat 4 with the gap of feedback channel 5, being depressured valve seat 8 and the screw thread of inlet channel 9
The structure type that connection, pressure regulating screw 11 are threadedly coupled with valve body 6 so that the valve element for being used for pressure regulation and decompression in the present invention can be square
Being separated with valve body 6 just, is easy to the examination and maintenance of two above valve element, may be such that the effect of easing stress of the present invention is controllable, operation
Maintenance cost is low, failture evacuation is convenient.
As the preferred scheme of the present invention, screen pack is set on inlet channel 9, and the screen pack is located at feedback channel
The front end of 5 arrival ends, to isolate the impurity in gases at high pressure, reduce influence of the impurity to both the above valve element and beneficial to follow-up low
The quality calmed the anger, gs-oil separator is set on outlet passageway 10, to remove the water separated out after decompression or oil.
Embodiment 2：
The present embodiment is further qualified on the basis of embodiment 1, as shown in figure 1, for ease of reducing the volume of the present invention, profit
In the processing of the present invention, reduce the quantity of sealing surface on valve body 6, the outlet passageway 10, inlet channel 9, feedback channel 5 and exhale
Sucker 1 is by least one section of straight hole section composition.Above structure is easy to valve body 6 being arranged to an entirety, passes through the form of drilling
Inlet channel 9, outlet passageway 10, feedback channel 5 and spiracle 1 are processed, above inlet channel 9, outlet passageway 10, feedback are logical
Road 5 and the openend of spiracle 1 can be sealed by the structure type of pipe screw thread screw fit sealing gasket 3.
To lift the feedback response speed of the decompression valve element 7, collision of the buffering decompression valve element 7 with being depressured valve seat 8 is described
Both ends are additionally provided with outlet passageway 10 to be respectively acting on the wall of outlet passageway 10 and be depressured the spring of valve element 7, the spring, drop
Pressure valve core 7 and decompression valve seat 8 are respectively positioned in same straight hole section.Further, diaphragm, spring can be set on decompression valve element 7
Interacted with the diaphragm on rolling valve element, the diaphragm and the inner wall sealing of outlet passageway 10, arrangement above, which is easy to improve, to be depressured
Precision of the valve element 7 by the gas pressure of feedback channel 5.
Embodiment 3：
The present embodiment is further qualified on the basis of embodiment 1, as shown in figure 1, to prevent that the pressure regulating screw 11 is inhuman
To rotate, the outlet pressure of the present invention is influenceed, being additionally provided with both ends on the pressure regulating screw 11 is respectively acting on pressure regulating screw 11
With the elastic component 12 of valve body 6.
Because spring can deform compared to other elastic components 12 in the larger context, to cause pressure regulating screw 11 adjusting
Press through elastic component 12 in journey all has active force to pressure regulating screw 11 all the time, and the elastic component 12 is compression spring.
Above content is to combine the further description that specific preferred embodiment is made to the present invention, it is impossible to assert this
The embodiment of invention is confined to these explanations.For general technical staff of the technical field of the invention,
The other embodiment drawn in the case where not departing from technical scheme, should be included within the scope of the present invention.
Claims (5)
1. a kind of gas pressure reducer for being convenient for changing valve element, including valve body（6）, the valve body（6）On be provided with inlet channel
（9）, outlet passageway（10）, spiracle（1）And feedback channel（5）, the inlet channel（9）And outlet passageway（10）Between set
There are decompression portion, spiracle（1）And feedback channel（5）Between be provided with pressure-regulating portion, feedback channel（5）Arrival end and the port of export point
Not and inlet channel（9）And outlet passageway（10）Communicate, it is characterised in that the valve body（6）On be also threaded with pressure regulation spiral shell
Nail（11）, the pressure regulating screw（11）One end stretch into feedback channel（5）It is interior, and pressure regulating screw（11）Stretch into feedback channel（5）
The end of one end be taper, feedback channel（11）In be additionally provided with and feedback channel（11）The pressure regulating seat that gap coordinates（4）, institute
State pressure regulating seat（4）There is the adjusting pressuring valve core of taper for hollow, end set（2）, side wall be provided with the column of air inlet and gas outlet
Structure, pressure regulating screw（11）Stretch into feedback channel（5）One end face adjusting pressuring valve core（2）；
The decompression portion includes decompression valve element（7）With decompression valve seat（8）, the decompression valve seat（8）Outside is provided with external screw thread
Cylindrical-shaped structure, and be depressured valve seat（8）It is threaded in inlet channel（9）In, it is depressured valve element（7）Positioned at outlet passageway（10）
It is interior, and it is depressured valve seat（8）With decompression valve element（7）On be respectively arranged with the tapered groove in section and projection, the raised face
The groove.
2. a kind of gas pressure reducer for being convenient for changing valve element according to claim 1, it is characterised in that the outlet leads to
Road（10）, inlet channel（9）, feedback channel（5）And spiracle（1）By at least one section of straight hole section composition.
A kind of 3. gas pressure reducer for being convenient for changing valve element according to claim 2, it is characterised in that the outlet passageway
（10）Inside it is additionally provided with both ends and is respectively acting on outlet passageway（10）Wall and decompression valve element（7）Spring, the spring, decompression
Valve element（7）With decompression valve seat（8）It is respectively positioned in same straight hole section.
A kind of 4. gas pressure reducer for being convenient for changing valve element according to claim 1, it is characterised in that the pressure regulating screw
（11）On be additionally provided with both ends and be respectively acting on pressure regulating screw（11）And valve body（6）Elastic component（12）.
A kind of 5. gas pressure reducer for being convenient for changing valve element according to claim 4, it is characterised in that the elastic component
（12）For compression spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610678912.3A CN107763262A (en) | 2016-08-17 | 2016-08-17 | A kind of gas pressure reducer for being convenient for changing valve element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610678912.3A CN107763262A (en) | 2016-08-17 | 2016-08-17 | A kind of gas pressure reducer for being convenient for changing valve element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107763262A true CN107763262A (en) | 2018-03-06 |
Family
ID=61260815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610678912.3A Withdrawn CN107763262A (en) | 2016-08-17 | 2016-08-17 | A kind of gas pressure reducer for being convenient for changing valve element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107763262A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112628439A (en) * | 2021-01-13 | 2021-04-09 | 阜新林迪商贸有限公司 | Pressure regulating valve capable of automatically replacing valve core during cavitation abrasion |
-
2016
- 2016-08-17 CN CN201610678912.3A patent/CN107763262A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112628439A (en) * | 2021-01-13 | 2021-04-09 | 阜新林迪商贸有限公司 | Pressure regulating valve capable of automatically replacing valve core during cavitation abrasion |
| CN112628439B (en) * | 2021-01-13 | 2023-06-06 | 拓姆菲阀门科技有限公司 | Pressure regulating valve capable of automatically changing valve core during cavitation abrasion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180306 |