CN100526701C - Device utilizing residual liquid of liquefied gas and preventing outflow of liquid phase - Google Patents
Device utilizing residual liquid of liquefied gas and preventing outflow of liquid phase Download PDFInfo
- Publication number
- CN100526701C CN100526701C CNB2007100264601A CN200710026460A CN100526701C CN 100526701 C CN100526701 C CN 100526701C CN B2007100264601 A CNB2007100264601 A CN B2007100264601A CN 200710026460 A CN200710026460 A CN 200710026460A CN 100526701 C CN100526701 C CN 100526701C
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- Prior art keywords
- valve
- hollow stem
- liquid phase
- liquefied gas
- prevent
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Abstract
The invention relates to a device which can utilize the left liquid gas and avoid leading out the liquid. The invention comprises a valve and a hollow rod on the valve and extended to the bottom of steel bottle. The hollow rod is communicated with the gas outlet of valve, while it is arranged with gas holes. The hollow rod has a couple of movable valves. The gas holes have a baffle valve under for avoiding overflowing the liquid gas. The invention is characterized in the throttle valve on the hollow rod.
Description
Technical field
The present invention relates to the liquid gas apparatus field, particularly relate to a kind of liquefied gas residue utilization and prevent the device that liquid phase is derived.
Background technique
In the process that liquid gas uses, raffinate is all arranged in steel cylinder usually, if be not used, then can cause a large amount of energy wastes.The liquefied gas residue utilized device of prior art generally is that hollow tubular is set in steel cylinder, and an end of hollow tubular is communicated with cylinder valve, and the other end then extends the steel cylinder bottom.By forms such as air vent or inlet opening are set on hollow tubular, utilize the liquid gas of the pressure official post bottom of gas in the bottle to discharge along hollow tubular, reach the purpose that makes full use of liquefied gas residue.The claimant once applied for a patent with regard to the liquefied gas residue utilized device, its structure comprises valve body and the hollow stem that is located on the valve body, hollow stem extends to the steel cylinder bottom, and a pair of moving valve is housed on the hollow stem, and the below of vent is provided with the resistance valve that can prevent that liquid lng from overflowing.In the liquefied gas residue utilized device of this structure, because for directly to be communicated with, the liquid phase of liquefied petroleum gas (LPG) can be directly from the valve discharge, when steel cylinder is toppled between hollow stem and the valve body, the liquid phase of liquefied petroleum gas (LPG) is discharged in the bottle in a large number, so its poor stability when cleaning.In addition, adopt the phenomenon that can occur between bottle and the bottle gas in the steel cylinder using process of this structure.
Summary of the invention
Goal of the invention of the present invention is to overcome the deficiencies in the prior art, a kind of simple in structure, safe and reliable liquefied gas residue utilization is provided and prevents the device that liquid phase is derived.
Goal of the invention of the present invention is achieved in that a kind of liquefied gas residue utilization and prevents the device that liquid phase is derived, comprise valve body and be located on the valve body and extend the hollow stem of steel cylinder bottom, hollow stem is communicated with the air outlet of valve body, and have vent on the hollow stem, hollow stem is provided with a pair of moving valve, the below of vent is provided with the resistance valve that can prevent that liquid lng from overflowing, it is characterized in that: described hollow stem is provided with a throttle valve, described a pair of moving valve comprises a hollow casing and the housing cavity is divided into epicoele, first seal ring of cavity of resorption, the top of housing is provided with cover plate, the bottom of housing is provided with second seal ring, be provided with the spool that matches with first seal ring in the epicoele, be provided with the spool that matches with second seal ring in the cavity of resorption, epicoele is communicated with steel cylinder with exhaust port, and cavity of resorption is communicated with hollow stem with intercommunicating pore.
Described throttle valve comprises shell and is located at the interior throttling valve core of shell.
Described resistance valve comprises valve casing and the choked flow spool that external diameter is littler than valve casing internal diameter that is connected with the hollow stem one.
Be provided with seal ring between described throttle valve top and the hollow stem.
Described choked flow spool top is provided with the conical seat of salable valve casing air outlet.
The bottom of described hollow stem is provided with the damping spring that can withstand on the steel cylinder bottom surface.
The present invention improves existing liquefied gas residue utilized device, and a throttle valve is set on hollow stem, prevents that the liquid phase of liquefied petroleum gas (LPG) a large amount of when steel cylinder is toppled over from can directly flow out from valve.When the liquid phase flow was excessive in the steel cylinder, throttling valve core can move axially along shell, blocked the seal ring place between throttle valve top and the hollow stem, and the liquid phase of liquefied petroleum gas (LPG) can not be discharged, and therefore can effectively prevent to cross between bottle and the bottle phenomenon of gas.
Description of drawings
Fig. 1 is the structural representation of most preferred embodiment of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
According to shown in Figure 1, liquefied gas residue utilization of the present invention and prevent that the device that liquid phase is derived from comprising valve body 1 and hollow stem 2, one end of hollow stem 2 is communicated with the air outlet of valve body 1, and the other end then extends the steel cylinder bottom, and is provided with a damping spring 4 that can withstand on the steel cylinder bottom surface.Have vent 3 on hollow stem 2, liquid gas can be discharged valve body 1 through vent 3.Be provided with a pair of moving valve on the side surface of hollow stem 2, moving valve mainly comprises a hollow casing 5 and seal ring 6, and seal ring 6 is divided into epicoele and cavity of resorption to the cavity of housing 5, and the top of housing 5 and bottom are respectively equipped with cover plate 7 and seal ring 8.Be respectively equipped with the spool 9,10 that matches with seal ring 6,8 in epicoele and the cavity of resorption.Epicoele is communicated with steel cylinder by an exhaust port 11, and cavity of resorption then is communicated with hollow stem 2 with an intercommunicating pore 12.Be provided with a resistance valve on hollow stem 2, resistance valve is positioned at the below of vent 3.Resistance valve is made up of valve casing 13 and choked flow spool 14.Wherein valve casing 13 is connected for one with hollow stem 2; The external diameter of choked flow spool 14 is then little than valve casing 13 internal diameters.The top of choked flow spool 14 is provided with a conical seat, and conical seat when can push up on choked flow spool 14 seals the air outlet of valve casing 13.In order to prevent that steel cylinder liquid phase of liquefied petroleum gas (LPG) when toppling over from discharging in a large number, on hollow stem 2, be provided with a throttle valve, throttle valve comprises shell 15 and throttling valve core 16.Wherein throttling valve core 16 is arranged in the shell 15, and can move along the axial direction of shell 15.In order to improve the sealability between throttle valve and the hollow stem 2, between throttle valve top and hollow stem 2, be provided with a seal ring 17.When the liquid phase flow is excessive in the steel cylinder, throttling valve core 16 can move axially along shell 15 under the promotion of liquid phase, block seal ring 17 places between throttle valve top and the hollow stem 2, the liquid phase of liquefied petroleum gas (LPG) can not be discharged, except effectively preventing to cross the phenomenon of gas between bottle and the bottle, the Security when also having strengthened steel cylinder cleaning and use.
Claims (6)
1, a kind of liquefied gas residue utilization and prevent the device that liquid phase is derived, comprise valve body (1) and be located at the hollow stem (2) that the steel cylinder bottom was gone up and extended to valve body (1), hollow stem (2) is communicated with the air outlet of valve body (1), and have vent (3) on the hollow stem (2), hollow stem (2) is provided with a pair of moving valve, the below of vent (3) is provided with the resistance valve that can prevent that liquid lng from overflowing, it is characterized in that: described hollow stem (2) is provided with a throttle valve, described a pair of moving valve comprises a hollow casing (5) and housing (5) cavity is divided into epicoele, first seal ring (6) of cavity of resorption, the top of housing (5) is provided with cover plate (7), the bottom of housing (5) is provided with second seal ring (8), be provided with the spool (9) that matches with first seal ring (6) in the epicoele, be provided with the spool (10) that matches with second seal ring (8) in the cavity of resorption, epicoele is communicated with steel cylinder with exhaust port (11), and cavity of resorption is communicated with hollow stem (2) with intercommunicating pore (12).
2, according to the described liquefied gas residue utilization of claim 1 and prevent the device that liquid phase is derived, described throttle valve comprises shell (15) and is located at throttling valve core (16) in the shell (15).
3,, be provided with seal ring (17) between described throttle valve top and the hollow stem (2) according to the described liquefied gas residue utilization of claim 1 and prevent the device that liquid phase is derived.
4, according to the described liquefied gas residue utilization of claim 1 and prevent the device that liquid phase is derived, described resistance valve comprises valve casing (13) and the choked flow spool (14) that external diameter is littler than valve casing (13) internal diameter that is connected with hollow stem (2) one.
5, according to the described liquefied gas residue utilization of claim 4 and prevent the device that liquid phase is derived, described choked flow spool (14) top is provided with the conical seat of salable valve casing (13) air outlet.
6, according to the described liquefied gas residue utilization of claim 1 and prevent the device that liquid phase is derived, the bottom of described hollow stem (2) is provided with the damping spring (4) that can withstand on the steel cylinder bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100264601A CN100526701C (en) | 2007-01-16 | 2007-01-16 | Device utilizing residual liquid of liquefied gas and preventing outflow of liquid phase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100264601A CN100526701C (en) | 2007-01-16 | 2007-01-16 | Device utilizing residual liquid of liquefied gas and preventing outflow of liquid phase |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101008472A CN101008472A (en) | 2007-08-01 |
| CN100526701C true CN100526701C (en) | 2009-08-12 |
Family
ID=38697032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100264601A Expired - Fee Related CN100526701C (en) | 2007-01-16 | 2007-01-16 | Device utilizing residual liquid of liquefied gas and preventing outflow of liquid phase |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100526701C (en) |
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2007
- 2007-01-16 CN CNB2007100264601A patent/CN100526701C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101008472A (en) | 2007-08-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090812 Termination date: 20130116 |