CN203585455U - Double turn-off check valve for natural gas odorization machine - Google Patents
Double turn-off check valve for natural gas odorization machine Download PDFInfo
- Publication number
- CN203585455U CN203585455U CN201320322993.5U CN201320322993U CN203585455U CN 203585455 U CN203585455 U CN 203585455U CN 201320322993 U CN201320322993 U CN 201320322993U CN 203585455 U CN203585455 U CN 203585455U
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- valve
- flap
- flap seat
- seat
- valve body
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- Expired - Fee Related
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Abstract
Provided is a double turn-off check valve for a natural gas odorization machine, comprising a valve body, a valve flap (a), a valve flap seat (a), a ball-shaped valve core (a), a valve flap (b), a ball-shaped valve core (b), and a valve flap seat (b). The center inner cavity of the valve body comprises a cylindrical valve flap chamber and an air outlet channel. An air outlet end of the valve body is provided with a cone-shaped outer thread, and the other end is provided with outer thread. The center inner cavity of the valve cover comprises a cylindrical connection chamber and an air inlet channel, and the cylindrical connection chamber is provided with inner thread. The air inlet end of the valve cover is provided with a cone-shaped outer thread. The valve cover is connected to the valve body in a manner of threaded connection, and is provided with a tetrafluoro sealing pad (a). The valve flap seat (a) and the valve flap seat (b) are both cylinder-shaped, and the valve flap (a) and the valve flap (b) are both in the shape of circular rings. A tetrafluoro sealing pad (b) is disposed between the valve flap seat (a) and the valve flap seat (b), and a tetrafluoro sealing pad (c) is disposed between the valve flap seat (b) and the center inner cavity of the valve body. The double turn-off check valve is vertically mounted. The double turn-off check valve for a natural gas odorization machine is advantageous in that the structure is simple and cost is low; with the double turn-off structure, sealing performance is enhanced.
Description
(1) technical field
The utility model relates to natural valve station equipment, particularly having a double meaning disconnected one-way valve for a kind of natural gas odorization machine.
(2) background technique
In natural-gas station house equipment, conventionally use for the sake of security natural gas odorization machine to natural gas odorization, when technological design, add smelly pump position and often will use one-way valve, but often there is poorly sealed phenomenon in the one-way valve that common pipeline is used.
(3) model utility content
The purpose of this utility model is for above-mentioned existing problems, and having a double meaning disconnected one-way valve for a kind of natural gas odorization machine is provided, and it adopts having a double meaning disconnected structure, and operational effect is good, sealability is strong, can guarantee the safe operation of complete equipment.
The technical solution of the utility model:
Having a double meaning disconnected one-way valve for a kind of natural gas odorization machine, comprise valve body, valve gap, flap a, flap seat a, spherical valve core a, flap b, spherical valve core b and flap seat b, valve body is stepped shaft cylindrical body, its central lumen comprises cylindrical flap chamber and air outlet passage, the air outlet end of valve body is provided with conical external screw thread, and the other end is provided with outside thread; Valve gap is stepped shaft cylindrical body, and its central lumen comprises cylindrical connection chamber and air intake passage, and cylindrical connection chamber is provided with internal thread, and the suction port end of valve gap is provided with conical external screw thread, and valve gap and valve body are threaded connection and are provided with polytetrafluoroethylsealed sealed pad a; Flap a, flap seat a, spherical valve core a, flap, spherical valve core b and flap seat b are all positioned at the flap chamber of valve body, flap seat a and flap seat b are cylindrical body, its central lumen includes cylindrical spool chamber and gas channel, flap a and flap b are cirque body and inlay respectively and be fixed in flap seat a and flap seat b, between flap seat a and flap seat b, be provided with polytetrafluoroethylsealed sealed pad b, between flap seat b and the central lumen of valve body, be provided with polytetrafluoroethylsealed sealed pad c; Described having a double meaning disconnected one-way valve is vertically installed.
Working procedure of the present utility model:
This having a double meaning disconnected one-way valve is vertically installed, after natural gas odorization liquid (tetrahydrothiophene) enters in one-way valve by valve gap entry end, under the effect of inlet pressure, first large spherical valve core is blown afloat, now first spool composite structure is opened, after opening, smelly liquid flows out and enters second spool combination from the space of flap seat, the working principle of two spool combinations is identical, and flow out in the outlet port of last smelly liquid from valve seat.
Applicable scope of the present utility model is: have the large-scale gas company of device for adding odor, door station, industrial park and the residential quarter station in city.
The utility model has the advantages that: this apparatus structure is simple, cost is low; The sealability that adopted having a double meaning disconnected structural reinforcing.
(4) accompanying drawing explanation
Accompanying drawing is this having a double meaning disconnected one-way valve structures schematic diagram.
In figure: 1. the polytetrafluoroethylsealed sealed pad of valve gap 2. a 3. flap a 4. flap seat a
5. the polytetrafluoroethylsealed sealed pad of spherical valve core a 6. b 7. flap b 8. spherical valve core b
9. the polytetrafluoroethylsealed sealed pad of flap seat b 10. c 11. valve bodies
(5) embodiment
Embodiment:
Having a double meaning disconnected one-way valve for a kind of natural gas odorization machine, comprise valve body 11, valve gap 1, flap a3, flap seat a4, spherical valve core a5, flap b7, spherical valve core b8 and flap seat b9, valve body 11 is stepped shaft cylindrical body, its central lumen comprises cylindrical flap chamber and air outlet passage, the air outlet end of valve body 11 is provided with conical external screw thread, and the other end is provided with outside thread; Valve gap 1 is stepped shaft cylindrical body, and its central lumen comprises cylindrical connection chamber and air intake passage, and cylindrical connection chamber is provided with internal thread, and the suction port end of valve gap 1 is provided with conical external screw thread, and valve gap 1 is threaded connection and is provided with polytetrafluoroethylsealed sealed pad a2 with valve body 11; Flap a3, flap seat a4, spherical valve core a5, flap b7, spherical valve core b8 and flap seat b9 are all positioned at the flap chamber of valve body 11, flap seat a4 and flap seat b9 are cylindrical body, its central lumen includes cylindrical spool chamber and gas channel, flap a3 and flap b7 are cirque body and inlay respectively and be fixed in flap seat a4 and flap seat b9, between flap seat a4 and flap seat b9, be provided with polytetrafluoroethylsealed sealed pad b6, between flap seat b9 and the central lumen of valve body 11, be provided with polytetrafluoroethylsealed sealed pad c10; Described having a double meaning disconnected one-way valve is vertically installed.
In this embodiment, the conical external screw thread specification of valve gap suction port end is 1/4NPT-FM20, and endoporus is Φ 6 ㎜, material 304; Phenyl tetrafluoride pad a specification is for being Φ 15 ㎜ * Φ 6 ㎜ * 4.5 ㎜, material 4F; Flap a specification is for being Φ 13 ㎜ * Φ 8.5 ㎜ * 3.5 ㎜, and material is 304; Flap seat a height 15 ㎜, endoporus is respectively Φ 13 ㎜ * Φ 11 ㎜ * Φ 9 ㎜, material 304; The sphere diameter of spherical valve core a is 9.5 ㎜; Phenyl tetrafluoride pad b specification is Φ 15 ㎜ * Φ 6 ㎜ * 2 ㎜, material 4F; Flap b specification is for being Φ 13 ㎜ * Φ 7 ㎜ * 4 ㎜, and material is 304; Flap seat b height 13, endoporus is respectively Φ 12 ㎜ * Φ 9 ㎜ * Φ 6 ㎜, material 304; The sphere diameter of spherical valve core b is 7.5 ㎜; Phenyl tetrafluoride pad c specification is Φ 15 ㎜ * Φ 7 ㎜ * 2 ㎜, material 4F; The conical external screw thread specification of valve body air outlet end is 1/4NPT-M20, and endoporus is Φ 15 ㎜, material 304.
Claims (1)
1. a having a double meaning disconnected one-way valve for natural gas odorization machine, it is characterized in that: comprise valve body, valve gap, flap a, flap seat a, spherical valve core a, flap b, spherical valve core b and flap seat b, valve body is stepped shaft cylindrical body, its central lumen comprises cylindrical flap chamber and air outlet passage, the air outlet end of valve body is provided with conical external screw thread, and the other end is provided with outside thread; Valve gap is stepped shaft cylindrical body, and its central lumen comprises cylindrical connection chamber and air intake passage, and cylindrical connection chamber is provided with internal thread, and the suction port end of valve gap is provided with conical external screw thread, and valve gap and valve body are threaded connection and are provided with polytetrafluoroethylsealed sealed pad a; Flap a, flap seat a, spherical valve core a, flap b, spherical valve core b and flap seat b are all positioned at the flap chamber of valve body, flap seat a and flap seat b are cylindrical body, its central lumen includes cylindrical spool chamber and gas channel, flap a and flap b are cirque body and inlay respectively and be fixed in flap seat a and flap seat b, between flap seat a and flap seat b, be provided with polytetrafluoroethylsealed sealed pad b, between flap seat b and the central lumen of valve body, be provided with polytetrafluoroethylsealed sealed pad c; Described having a double meaning disconnected one-way valve is vertically installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320322993.5U CN203585455U (en) | 2013-06-05 | 2013-06-05 | Double turn-off check valve for natural gas odorization machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320322993.5U CN203585455U (en) | 2013-06-05 | 2013-06-05 | Double turn-off check valve for natural gas odorization machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203585455U true CN203585455U (en) | 2014-05-07 |
Family
ID=50583375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320322993.5U Expired - Fee Related CN203585455U (en) | 2013-06-05 | 2013-06-05 | Double turn-off check valve for natural gas odorization machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203585455U (en) |
-
2013
- 2013-06-05 CN CN201320322993.5U patent/CN203585455U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20160605 |