CN2436811Y - Dewing-resistant protector for centralized supply liquefied petroleum gas pipeline - Google Patents
Dewing-resistant protector for centralized supply liquefied petroleum gas pipeline Download PDFInfo
- Publication number
- CN2436811Y CN2436811Y CN 00215384 CN00215384U CN2436811Y CN 2436811 Y CN2436811 Y CN 2436811Y CN 00215384 CN00215384 CN 00215384 CN 00215384 U CN00215384 U CN 00215384U CN 2436811 Y CN2436811 Y CN 2436811Y
- Authority
- CN
- China
- Prior art keywords
- valve
- liquefied petroleum
- petroleum gas
- pipeline
- storage tank
- 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.)
- Expired - Fee Related
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses the technology of a dewing-resistant protector for a centralized supply liquefied petroleum gas pipeline, which comprises a liquid storage tank, a one-way valve and a pressure reducing valve. The utility model has the key points that the top part of the liquid storage tank is respectively provided with a liquid inlet pipe which is connected with the one-way valve and a gas outlet pipe which is connected with the pressure reducing valve, and the two pipe are coupled in the exterior of a transport pipeline of the liquefied petroleum gas; the other safety pipe is communicated with the air after being connected with a safety valve; the bottom of the liquid storage tank is provided with a drainage valve. The utility model can effectively store the liquefied petroleum gas which is dewed in the pipeline at night, and the dewed liquefied petroleum gas can be naturally gasified to be again transported into the pipeline after the day temperature is raised. The utility model is an ideal new generation of a dewing-resistant protector for a liquefied petroleum gas pipeline.
Description
The utility model relates to the pipe-line system technical field, specifically a kind of ducted dewfall protective equipment of central fluid supply liquefied oil gas that is used for.
At present, lpg pipeline transmission ﹠ distribution air feed is increasingly extensive.But in the winter of cold, nighttime temperature is lower, substantially stop with gas, ducted gaseous liquefied gas is because the inside and outside temperature difference of pipe and constantly cooling, may reduce to dew point and occurs condensing, promptly liquefaction again causes pipeline blockage, and is just relatively more difficult when the user uses Pipeline LPG.After day temperature raise, the liquefied petroleum gas (LPG) of dewfall gasified again, tended to cause ducted pressure to raise, and jeopardized the safe gas of using, and can cause fire and explosive accident when serious.Chinese patent ZL94203688.3, notice of authorization number are CN2208160Y, and name is called in the patent documentation of " the liquefied petroleum gas (LPG) gas phase prevents to freeze and the device of dewfall winter ", discloses the device technique that a kind of liquefied petroleum gas (LPG) gas phase prevents dewfall winter.But this device is that petroleum gas freezes and condensation trouble in the solution liquefied petroleum gas (LPG) transmission ﹠ distribution station, can not solve the dewfall phenomenon of the liquid gas appearance that enters in the transmission and distribution pipeline.
The purpose of this utility model is exactly at the deficiencies in the prior art, provides a kind of simple in structure, can store the liquefied petroleum gas (LPG) of dewfall in the pipeline, fails the dewfall protective equipment on return pipe road after it is gasified naturally again.
The purpose of this utility model realizes by following measure: this central fluid supply liquefied oil gas pipeline dewfall protective equipment, comprise liquid storage tank, one-way valve, reduction valve and safety valve, mainly be to be provided with liquid inlet pipe, steam outlet pipe, three pipelines of bursting tube at the liquid storage tank top, liquid inlet pipe joins with outer liquid liquefied oil gas conveyance conduit after connecting one-way valve, steam outlet pipe also joins with outer liquid liquefied oil gas conveyance conduit after connecting reduction valve, directly communicates with air behind the bursting tube attachment security valve.Bottom at liquid storage tank is provided with blowdown valve.
The utility model compared with prior art has following advantage:
The one, can store winter especially the inside and outside temperature difference of pipeline at night cause the liquid gas dewfall and the liquid lng that forms, avoid the generation of line clogging and accident.
The 2nd, the use of can gasifying again again of stored liquid gas, energy-saving safety, and also simple in structure, be easy to extensively promote the use of.
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is the utility model structural representation.
As shown in drawings, the utility model comprises liquid storage tank 1, one-way valve 2, reduction valve 3 and safety valve 4, mainly be to be provided with liquid inlet pipe 6, steam outlet pipe 7,8 three pipelines of bursting tube at liquid storage tank 1 top, liquid inlet pipe 6 connects one-way valve 2 backs and joins with outer liquid liquefied oil gas conveyance conduit 9, after connecting reduction valve 3, steam outlet pipe 7 also joins with outer liquid liquefied oil gas conveyance conduit 9, bursting tube 8 attachment security valves 4 backs directly communicate with air, are provided with blowdown valve 5 in the bottom of liquid storage tank.The utility model generally is installed on the lowest part of outdoor lpg pipeline.When ambient temperature reduced, liquid storage tank was not because of establishing thermal insulation layer, and its temperature is lower than pipe temperature, and pressure is corresponding to be lower than pressure in the pipeline, one-way valve opens, and ducted liquid lng enters liquid storage tank.When ambient temperature raise, the temperature rise of liquid storage tank was faster than the pipeline temperature rise, and again gasify when a jar interior liquid lng reaches gasification temperature this moment, and jar internal pressure is raise.Import this moment closed check valve, the liquid gas after the gasification reenters liquefied gas pipeline by reduction valve.When the jar internal pressure surpassed setting value, safety valve was opened and is diffused, and can play a protective role.The liquid gas waste residue can discharge by blowdown valve in jar.
Claims (2)
1, a kind of central fluid supply liquefied oil gas pipeline dewfall protective equipment, comprise liquid storage tank (1), one-way valve (2), reduction valve (3) and safety valve (4), it is characterized in that: liquid storage tank (1) top is provided with liquid inlet pipe (6), steam outlet pipe (7), (8) three pipelines of bursting tube, liquid inlet pipe (6) connects one-way valve (2) back and joins with outer liquid liquefied oil gas conveyance conduit (9), steam outlet pipe (7) also joins with outer liquid liquefied oil gas conveyance conduit (9) after connecting reduction valve (3), and bursting tube (8) attachment security valve (4) back directly communicates with air.
2, central fluid supply liquefied oil gas pipeline dewfall protective equipment according to claim 1 is characterized in that the bottom of said liquid storage tank (1) is provided with blowdown valve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00215384 CN2436811Y (en) | 2000-07-07 | 2000-07-07 | Dewing-resistant protector for centralized supply liquefied petroleum gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00215384 CN2436811Y (en) | 2000-07-07 | 2000-07-07 | Dewing-resistant protector for centralized supply liquefied petroleum gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2436811Y true CN2436811Y (en) | 2001-06-27 |
Family
ID=33581337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00215384 Expired - Fee Related CN2436811Y (en) | 2000-07-07 | 2000-07-07 | Dewing-resistant protector for centralized supply liquefied petroleum gas pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2436811Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101081688B (en) * | 2006-06-01 | 2012-08-08 | 株式会社阿迪雅 | Liquid storage tank and liquid feeding device |
| CN102847475A (en) * | 2012-09-26 | 2013-01-02 | 雷汉坤 | Mixed pressure tank for synthesized gas |
| CN103672399A (en) * | 2013-12-19 | 2014-03-26 | 常熟市加腾电子设备厂（普通合伙） | Anti-condensation nitrogen gas tank |
-
2000
- 2000-07-07 CN CN 00215384 patent/CN2436811Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101081688B (en) * | 2006-06-01 | 2012-08-08 | 株式会社阿迪雅 | Liquid storage tank and liquid feeding device |
| CN102847475A (en) * | 2012-09-26 | 2013-01-02 | 雷汉坤 | Mixed pressure tank for synthesized gas |
| CN103672399A (en) * | 2013-12-19 | 2014-03-26 | 常熟市加腾电子设备厂（普通合伙） | Anti-condensation nitrogen gas tank |
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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 |