CN208010991U - A kind of natural gas depressurization safety-valve - Google Patents
A kind of natural gas depressurization safety-valve Download PDFInfo
- Publication number
- CN208010991U CN208010991U CN201820346926.XU CN201820346926U CN208010991U CN 208010991 U CN208010991 U CN 208010991U CN 201820346926 U CN201820346926 U CN 201820346926U CN 208010991 U CN208010991 U CN 208010991U
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- Prior art keywords
- natural gas
- fixedly connected
- hole
- piston
- valve body
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Abstract
The utility model discloses a kind of natural gas depressurization safety-valves, including valve body, the inner bottom wall of the valve body is fixedly connected with mounting cylinder, the side wall perforation of mounting cylinder is connected with air inlet pipe, when the natural gas in air inlet pipe enters in mounting cylinder, entered in low pressure chamber by first through hole, such structure effectively converts high-pressure natural gas to the natural gas of low pressure, then pass through escape pipe, and then reduce the pressure of natural gas in low pressure chamber, it is convenient and efficient, and when needing to close natural gas, pass through manual rotation knob, the second connecting rod is set to move up, the first gasket is allowed to be attached to first through hole upwards, block first through hole, the present apparatus simplifies operation, reduce manufacturing cost.
Description
Technical field
The utility model is related to valve manufacture field, specially a kind of natural gas depressurization safety-valve.
Background technology
Currently, natural gas has become the third-largest energy in addition to coal and oil, natural gas mainly by pipeline,
In transmission process at natural gas high speed or high pressure conditions, and be transported to terminal using when need low pressure natural gas, this will
Pressure reducer carries out decompression adjusting, the present most independent action of day hot gas pressure reducer, i.e. pressure reducer and controlled valve to natural gas
It acts on respectively, which results in operational cumbersome, also improves manufacturing cost.
Utility model content
The purpose of this utility model is to provide a kind of natural gas depressurization safety-valves, to solve to carry in above-mentioned background technology
The problem of going out.
The inner bottom wall of a kind of natural gas depressurization safety-valve, including valve body, the valve body is fixedly connected with mounting cylinder, installation
Cylinder side wall perforation be connected with air inlet pipe, the roof of the mounting cylinder offers first through hole, in first through hole activity be plugged with
The lower end of head rod, head rod is fixedly connected with the first gasket corresponding with first through hole, first connection
The upper end of bar is fixedly connected on the lower face of piston, and the inner wall of piston and valve body is slidably connected, and second is offered on the piston
Through-hole, in the second through-hole activity be plugged with inserted link, the upper end of the inserted link is fixedly connected with the second gasket, under the inserted link
End is fixedly connected with connecting plate, and the upper surface of the connecting plate is fixedly connected with one end of several springs, and the other end of spring connects
It is connected on the lower face of piston, the upper surface of the piston is fixedly connected with secondary pressure pipe, and the upper end activity of secondary pressure pipe is passed through
The roof of valve body is worn, second gasket is located in secondary pressure pipe, and the upper surface of the piston is fixedly connected with the second connection
The other end sliding of one end of bar, the second connecting rod reaches the inside of sleeve through the roof of valve body, the bottom plate of sleeve and turns
The threaded upper ends of the dynamic lower end for being connected to screw rod, screw rod reach the outside of sleeve through sleeve and are fixedly connected with knob, institute
It states and is equipped with low pressure chamber in valve body, low pressure chamber is located at the lower section of piston, and the side wall perforation of the valve body is connected with escape pipe, escape pipe
It penetrates through and connects with low pressure chamber.
Preferably, the quantity more than three of the spring, and equidistant ring is distributed between multiple springs.
Preferably, first gasket is circle.
Preferably, the radius of first gasket is more than the radius of first through hole.
Compared with prior art, the utility model has the beneficial effects that：When the natural gas in air inlet pipe enters in mounting cylinder,
Entered in low pressure chamber by first through hole, such structure effectively converts high-pressure natural gas to the natural gas of low pressure, then logical
Escape pipe is crossed, also, when natural gas pressure is excessive in air inlet pipe, can be jacked up the second gasket upwards by the second through-hole,
Make the second through-hole penetrate through with low pressure chamber to connect, to which the natural gas for making pressure excessive enters in secondary pressure pipe, and then reduce low
The pressure of intracavitary natural gas is pressed, it is convenient and efficient, and when needing to close natural gas, by manual rotation knob, make the second company
Extension bar moves up, and the first gasket is allowed to be attached to first through hole upwards, blocks first through hole, and the present apparatus simplifies operation, reduces
Manufacturing cost.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model.
In figure：Air inlet pipe 1, valve body 2, piston 3, head rod 4, escape pipe 5, low pressure chamber 6, mounting cylinder 7, first seal
Pad 8, the second connecting rod 9, sleeve 10, screw rod 11, knob 12, secondary pressure pipe 13, the second gasket 14, inserted link 15, spring 16,
Connecting plate 17.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Referring to Fig. 1, the utility model provides a kind of technical solution：
The inner bottom wall of a kind of natural gas depressurization safety-valve, including valve body 2, valve body 2 is fixedly connected with mounting cylinder 7, installation
The side wall perforation of cylinder 7 is connected with air inlet pipe 1, and the roof of mounting cylinder 7 offers first through hole, in first through hole activity be plugged with the
The lower end of one connecting rod 4, head rod 4 is fixedly connected with the first gasket 8 corresponding with first through hole, head rod 4
Upper end be fixedly connected on the lower face of piston 3, piston 3 and the inner wall of valve body 2 are slidably connected, and it is logical that second is offered on piston 3
Hole, in the second through-hole activity be plugged with inserted link 15, the upper end of inserted link 15 is fixedly connected with the second gasket 14, the lower end of inserted link 15
It is fixedly connected with connecting plate 17, the upper surface of connecting plate 17 is fixedly connected with one end of several springs 16, the other end of spring 16
It is connected to the lower face of piston 3, the upper surface of piston 3 is fixedly connected with secondary pressure pipe 13, and the upper end of secondary pressure pipe 13 is lived
The dynamic roof through valve body 2, the second gasket 14 are located in secondary pressure pipe 13, and the upper surface of piston 3 is fixedly connected with the second company
The other end sliding of one end of extension bar 9, the second connecting rod 9 reaches the interior of sleeve 10 through the roof of valve body 2, the bottom plate of sleeve 10
The threaded upper ends of portion and the lower end for being rotatably connected on screw rod 11, screw rod 11 reach the outside of sleeve 10 through sleeve 10 and consolidate
Surely it is connected with knob 12, low pressure chamber 6 is equipped in valve body 2, low pressure chamber 6 is located at the lower section of piston 3, the side wall perforation connection of valve body 2
There are escape pipe 5, escape pipe 5 to be connected with the perforation of low pressure chamber 6, the quantity more than three of spring 16, and it is equidistant between multiple springs 16
Annular spread, the first gasket 8 are circle, and the radius of the first gasket 8 is more than the radius of first through hole.
Operation principle：When the natural gas in air inlet pipe 1 enters in mounting cylinder 7, entered in low pressure chamber 6 by first through hole,
Such structure effectively converts high-pressure natural gas to the natural gas of low pressure, then by escape pipe 5, also, when in air inlet pipe 1
When natural gas pressure is excessive, the second gasket 14 can upwards be jacked up, the second through-hole is made to be passed through with low pressure chamber 6 by the second through-hole
Lead to and connect, to which the natural gas for making pressure excessive enters in secondary pressure pipe 13, and then reduces the pressure of natural gas in low pressure chamber 6
By force, convenient and efficient, and when needing to close natural gas, by manual rotation knob 12, the second connecting rod 9 is made to move up,
It allows the first gasket 8 to be attached to first through hole upwards, blocks first through hole, the present apparatus simplifies operation, reduces manufacturing cost.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of natural gas depressurization safety-valve, including valve body (2), it is characterised in that：The inner bottom wall of the valve body (2), which is fixed, to be connected
It is connected to mounting cylinder (7), the side wall perforation of mounting cylinder (7) is connected with air inlet pipe (1), and the roof of the mounting cylinder (7) offers the
One through-hole, in first through hole activity be plugged with head rod (4), the lower end of head rod (4) is fixedly connected with and first
The upper end of corresponding first gasket (8) of through-hole, the head rod (4) is fixedly connected on the lower face of piston (3), piston
(3) inner wall with valve body (2) is slidably connected, and offers the second through-hole on the piston (3), in the second through-hole activity be plugged with slotting
The upper end of bar (15), the inserted link (15) is fixedly connected with the second gasket (14), and the lower end of the inserted link (15) is fixedly connected
Have a connecting plate (17), the upper surface of the connecting plate (17) is fixedly connected with one end of several springs (16), spring (16) it is another
One end is connected to the lower face of piston (3), and the upper surface of the piston (3) is fixedly connected with secondary pressure pipe (13), secondary to subtract
The upper end activity of pressure pipe (13) runs through the roof of valve body (2), and second gasket (14) is located in secondary pressure pipe (13), institute
The upper surface for stating piston (3) is fixedly connected with one end of the second connecting rod (9), and the other end sliding of the second connecting rod (9) runs through valve
The roof of body (2), the bottom plate of sleeve (10) reach the inside of sleeve (10) and are rotatably connected on the lower end of screw rod (11), screw rod
(11) threaded upper ends reach the outside of sleeve (10) through sleeve (10) and are fixedly connected with knob (12), the valve body
(2) low pressure chamber (6) is equipped in, low pressure chamber (6) is located at the lower section of piston (3), and the side wall perforation of the valve body (2) is connected with outlet
It manages (5), escape pipe (5) is connected with low pressure chamber (6) perforation.
2. a kind of natural gas depressurization safety-valve according to claim 1, it is characterised in that：The quantity of the spring (16)
More than three, and equidistant ring is distributed between multiple springs (16).
3. a kind of natural gas depressurization safety-valve according to claim 1, it is characterised in that：First gasket (8)
It is circle.
4. a kind of natural gas depressurization safety-valve according to claim 3, it is characterised in that：First gasket (8)
Radius be more than first through hole radius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820346926.XU CN208010991U (en) | 2018-03-14 | 2018-03-14 | A kind of natural gas depressurization safety-valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820346926.XU CN208010991U (en) | 2018-03-14 | 2018-03-14 | A kind of natural gas depressurization safety-valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208010991U true CN208010991U (en) | 2018-10-26 |
Family
ID=63887574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820346926.XU Active CN208010991U (en) | 2018-03-14 | 2018-03-14 | A kind of natural gas depressurization safety-valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208010991U (en) |
-
2018
- 2018-03-14 CN CN201820346926.XU patent/CN208010991U/en active Active
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