CN2400661Y - Industrial pressure-reducing valve for use in four seasons - Google Patents
Industrial pressure-reducing valve for use in four seasons Download PDFInfo
- Publication number
- CN2400661Y CN2400661Y CN 99252631 CN99252631U CN2400661Y CN 2400661 Y CN2400661 Y CN 2400661Y CN 99252631 CN99252631 CN 99252631 CN 99252631 U CN99252631 U CN 99252631U CN 2400661 Y CN2400661 Y CN 2400661Y
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- pressure
- gas
- valve gap
- spool
- sealing surface
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Abstract
The utility model relates to a pressure-reducing device for industrial gas, which belongs to the manufacturing field of the pressure-reducing device. One the basis of the existing acetylene gas pressure regulator and the pressure regulator used for welding and cutting gas, the top pressure sealing structure of the present valve cover and the end surface of the valve core is changed into the structure that the valve cover and the valve core present a tapered inclined plane sealing structure, and the end surface of the valve core is provided with one exhaust port to nine exhaust ports. The utility model has the advantages that the problem that the existing various gas pressure regulators can not continuously feed alkanes gases under 0 DEG C at present is solved; the utility model not only causes the gas consumption cost for the enterprise production to be largely decreased but also realizes that the alkanes gas replaces the existing acetylene gas.
Description
The utility model relates to a kind of industrial fuel gas decompression gas, belongs to decompressor and makes the field.
Background technique of the present utility model: existing industrial acetylene gas pressure governor, the interior relief opening of the valve gap in its hyperbaric chamber is the round tube hole that has the convex edge, purpose one be with spool end on seal ring be complementary, be used for the relief opening on the sealed valve cap, the 2nd, play metering function; Spool is made of end bar, six prisms, bottom bar etc., and the upper-end surface at six prisms studs with seal ring, purpose one be with valve gap in have a convex edge relief opening be complementary, be used for the relief opening on the sealed valve cap, two is the spaces that form between six prisms and valve gap inner round wall, is used to pass through acetylene gas.The not enough point of said structure: alkane fuel gas such as incompatibility propane, particularly when the Environmental Conditions temperature is lower than 0 ℃, it has the relief opening of convex edge and valve core structure that end face has seal ring is to cause alkane fuel gas such as propane to freeze at its relief opening, stop up relief opening and the basic reason that can't use.Therefore, inexpensive, free of contamination alkane fuel gas can't be promoted the use of so far in industrial welding.
Purpose of design of the present utility model: avoid the deficiency in the background technique, design and a kind ofly can make alkane fuel gas such as propane be lower than the industrial four seasons of using below 0 ℃ to use decompressor in ambient temperature.
Design proposal of the present utility model: domestic each industrial enterprise are used for the gas of operations such as industry cutting, welding at present, mainly use dissolved acetylene gas.Also have some enterprises with acetylene producer or directly use calcium carbide, cause environmental pollution.The share that dissolved acetylene gas occupies at city's field boundary is more than 90%, one bottle 6 kilograms acetylene gas, about 55 yuan of cost of production, price is about 80 yuan, some area is up to more than 100 yuan, in order to seek a kind of substitute products of acetylene gas, domestic many R﹠D institutions, the scientific research personnel of universities and colleges all positive development and seek can replaced acetylene gas industrial combustion gas, as metal welding/cutting gas and the reinforced liquefied petroleum gas of developing, but the above-mentioned gas Environmental Conditions is more than 0 ℃, in case when Environmental Conditions is lower than 0 ℃, then can't guarantee the continuous supply of bottle interior gas and be gasified totally, therefore unresolved so far for a difficult problem how to use metal welding/cutting gas and reinforced liquefied petroleum gas (LPG) below 0 ℃.In order to solve this difficult problem, the utility model is on the basis of existing acetylene gas pressure governor and welding gas pressure governor, with existing valve gap and spool end roof pressure sealing configuration, change the tapered inclined plane sealing structure of valve gap and spool into, and have 1～9 exhaust port at the end face of spool.The improvement of said structure, having solved at present existing all kinds of gas pressure regulator, governors can't not only make enterprise produce with pneumatolytic and originally significantly reduce in a difficult problem of supplying with alkane fuel gas below 0 ℃ continuously, and has realized replacing with alkane fuel gas the difficult problem of existing acetylene gas.When serviceability temperature was superfluous greater than 0 ℃, air demand, the constrictor that spins in the industry butt joint connecting leg of the four seasons with decompressor was to guarantee its best air demand.
The utility model is compared with background technique, and the one, with existing valve gap and spool end roof pressure sealing configuration, the end face that changes tapered inclined plane sealing structure of valve gap and spool and spool into has 1～9 exhaust port.Therefore, having solved at present existing all kinds of gas pressure regulator, governors can't not only make enterprise produce with pneumatolytic and originally significantly reduce in a difficult problem of supplying with alkane fuel gas below 0 ℃ continuously, and has realized replacing with alkane fuel gas the difficult problem of existing acetylene gas; The 2nd, the structural design of the constrictor that spins in the industry butt joint connecting leg of the four seasons with decompressor has realized effective adjustment of air demand.
Description of drawings:
Fig. 1 is a structural principle schematic representation of the present utility model.
Fig. 2 is the sectional structure schematic representation of valve gap.
Fig. 3 is the plan structure schematic representation of valve gap.
Fig. 4 is the sectional structure schematic representation of spool.
Fig. 5 is the partial structurtes schematic representation of butt joint connecting leg.
Fig. 6 is the sectional structure schematic representation of constrictor.
Fig. 7 is the plan structure schematic representation of constrictor.
Fig. 8 is a perspective view of the present utility model.
Embodiment 1: with reference to accompanying drawing 3 and 4.The sealing surface (15) of the air outlet in the valve gap (9) has tapering, spool (3) sealing surface (16) has tapering and is complementary with the sealing surface (15) of air outlet in the valve gap (9), play the effect of sealing, be shaped on 1～9 exhaust port (17) on the end face of spool (3).
Embodiment 2: with reference to accompanying drawing 1～5.The industry four seasons are used decompressor, low pressure chamber (10) is provided with air outlet connecting tube (12) and low-pressure meter (14), the port of low pressure chamber (10) is provided with film (4), spring cushion block (5) is positioned on the film (4), pressure spring (7) is positioned on the spring cushion block (5), adjusting screw rod (6) is screwed on the pressure governor lid (8), touch mutually with pressure spring (7) its lower end, be provided with hyperbaric chamber (11) in the low pressure chamber (10), hyperbaric chamber (11) is provided with air inlet butt joint connecting leg (2) and high pressure gauge (1), valve gap (9) is screwed in the port of hyperbaric chamber (11), spool (3) is positioned at hyperbaric chamber (11), its upper end bar passes the center hole of high pressure valve gap, touch mutually with the shutter spring that is positioned at hyperbaric chamber (11) (12) lower end, the sealing surface (15) of the air outlet in the valve gap (9) is and has the trapezoidal of tapering, spool (3) sealing surface (16) has tapering and is complementary with the sealing surface (15) of air outlet in the valve gap (9), reach the effect of sealing, be shaped on 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9 exhaust ports (17) on the end face of spool (3).
Embodiment 3: with reference to accompanying drawing 6 and 7.On embodiment 2 basis, the air inlet port inward turning of air inlet butt joint connecting leg (2) connects constrictor (18).
Claims (2)
1, a kind of decompressor high pressure valve, it is characterized in that: the sealing surface (15) of the air outlet in the valve gap (9) has tapering, spool (3) sealing surface (16) has tapering and is complementary with the sealing surface (15) of air outlet in the valve gap (9), play the effect of sealing, be shaped on 1～9 exhaust port (17) on the end face of spool (3).
2, a kind of industry four seasons are used decompressor, low pressure chamber (10) is provided with air outlet connecting tube (12) and low-pressure meter (14), the port of low pressure chamber (10) is provided with film (4), spring cushion block (5) is positioned on the film (4), pressure spring (7) is positioned on the spring cushion block (5), adjusting screw rod (6) is screwed on the pressure governor lid (8), touch mutually with pressure spring (7) its lower end, be provided with hyperbaric chamber (11) in the low pressure chamber (10), hyperbaric chamber (11) is provided with air inlet butt joint connecting leg (2) and high pressure gauge (1), valve gap (9) is screwed in the port of hyperbaric chamber (11), spool (3) is positioned at hyperbaric chamber (11), its upper end bar passes the center hole of valve gap, touch mutually with the shutter spring that is positioned at hyperbaric chamber (11) (12) lower end, it is characterized in that: the sealing surface (15) of the air outlet in the valve gap (9) has tapering, spool (3) sealing surface (16) has tapering and is complementary with the sealing surface (15) of air outlet in the valve gap (9), play the effect of sealing, be shaped on 1～9 exhaust port (17) on the end face of spool (3), the air inlet port inward turning of air inlet butt joint connecting leg (2) constrictor (18) that connects or do not spin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99252631 CN2400661Y (en) | 1999-12-04 | 1999-12-04 | Industrial pressure-reducing valve for use in four seasons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99252631 CN2400661Y (en) | 1999-12-04 | 1999-12-04 | Industrial pressure-reducing valve for use in four seasons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2400661Y true CN2400661Y (en) | 2000-10-11 |
Family
ID=34036751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99252631 Expired - Fee Related CN2400661Y (en) | 1999-12-04 | 1999-12-04 | Industrial pressure-reducing valve for use in four seasons |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2400661Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101755155B (en) * | 2007-07-18 | 2013-02-27 | 卢克摩擦片和离合器两合公司 | Pressure relief valve for a hydraulic assembly |
-
1999
- 1999-12-04 CN CN 99252631 patent/CN2400661Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101755155B (en) * | 2007-07-18 | 2013-02-27 | 卢克摩擦片和离合器两合公司 | Pressure relief valve for a hydraulic assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |