CN202274287U - Overpressure protection system for liquefied gas filling pipeline - Google Patents
Overpressure protection system for liquefied gas filling pipeline Download PDFInfo
- Publication number
- CN202274287U CN202274287U CN2011204059275U CN201120405927U CN202274287U CN 202274287 U CN202274287 U CN 202274287U CN 2011204059275 U CN2011204059275 U CN 2011204059275U CN 201120405927 U CN201120405927 U CN 201120405927U CN 202274287 U CN202274287 U CN 202274287U
- Authority
- CN
- China
- Prior art keywords
- conveying
- storage tank
- protection system
- pipeline
- liquefied gas
- 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 an overpressure protection system for a liquefied gas filling pipeline. The overpressure protection system comprises a conveying pipeline, a conveying pump and a storage tank, wherein the lower end of the conveying pipeline is connected with the conveying pump; the other end of the conveying pipeline is connected with the storage tank; the conveying pipeline at the front end of the conveying pump is provided with a control valve; the front conveying pipe of the control valve is provided with a perforated pipe connected to a filling workshop; the conveying pipeline at the rear end of the storage tank is provided with a return valve; the rear conveying pipe of the return valve is provided with a pressure sensor; a contact button of the pressure sensor is connected with an automatic contactor; and the automatic contactor is connected to a conveying pump motor. The overpressure protection system for the liquefied gas filling pipeline is capable of solving the safety problems caused by the conditions that the return valve is blocked, a spring is corroded and the like in the liquefied gas filling process, has a reasonable design, and is safe and reliable because an overpressure power-off protection device is adopted.
Description
Technical field
The utility model relates to lpg filling pipe safety resist technology field, specifically belongs to lpg filling pipeline overpressure protection system.
Background technique
Have now in the lpg filling process, owing to reasons such as replacing steel cylinders, charging operation can not be carried out continuously.Under normal circumstances, filling superfluous liquid gas refluxes through pressure-limiting safety valve.But under special circumstances, for example reflux valve blocks, spring corrosion etc., if the operator can not in time be closed down transfer pump, is very easy to take place major accident.
The model utility content
The purpose of the utility model provides lpg filling pipeline overpressure protection system, has solved to occur the safety problem that situation such as reflux valve blocks, spring corrosion cause in the lpg filling process, and is reasonable in design, adopts the superpressure power-off protection apparatus, safe and reliable.
The technological scheme that the utility model adopts is following:
Lpg filling pipeline overpressure protection system comprises conveyance conduit, transfer pump, storage tank, and described conveyance conduit lower end connects transfer pump; The other end connects storage tank, and transfer pump front end conveyance conduit is provided with control valve, and delivery pipe is provided with ram's horns and is connected to and fills the workshop before the control valve; Storage tank rear end delivery pipe is provided with reflux valve; Delivery pipe is provided with pressure transducer behind the reflux valve, and the pressure transducer contact button is connected with automatic contactor, and automatic contactor is connected to the transfer pump motor.
Compared with present technology, the beneficial effect of the utility model is following:
The utility model keeping on the basis of conventional safety system, be in parallel installed with the superpressure power-off protection apparatus.Be used in emergency circumstances, close down transfer pump automatically.Major safety risks have effectively been avoided.During proper functioning, conventional safety system controlling plumbing fixtures pressure; In emergency circumstances, when pipeline pressure surpassed the adjustment range of conventional safety system, the superpressure power-off protection apparatus started, and broke off control break of contact power supply by pressure transducer and made transfer pump out of service.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Referring to accompanying drawing, lpg filling pipeline overpressure protection system comprises conveyance conduit 1, transfer pump 2, storage tank 3; Lower end, delivery pipe 1 road connects transfer pump 2; The other end connects storage tank 3, and transfer pump 2 front end conveyance conduits are provided with control valve 4, and delivery pipes are provided with ram's horns and are connected to and fill workshop 5 before the control valve 4; Storage tank 3 rear end delivery pipes 1 are provided with reflux valve 6; Reflux valve 6 back delivery pipes are provided with pressure transducer 7, and pressure transducer contact button 8 is connected with automatic contactor 9, and automatic contactor 9 is connected to transfer pump motor 10.In emergency circumstances, when conveyance conduit 1 pressure surpassed the adjustment range of conventional safety system, the superpressure power-off protection apparatus started, and broke off control break of contact power supply by pressure transducer 7 and made transfer pump out of service.
Claims (1)
1. lpg filling pipeline overpressure protection system; Comprise conveyance conduit, transfer pump, storage tank, it is characterized in that: described conveyance conduit lower end connects transfer pump, and the other end connects storage tank; Transfer pump front end conveyance conduit is provided with control valve; Delivery pipe is provided with ram's horns and is connected to and fills the workshop before the control valve, and storage tank rear end delivery pipe is provided with reflux valve, and delivery pipe is provided with pressure transducer behind the reflux valve; The pressure transducer contact button is connected with automatic contactor, and automatic contactor is connected to the transfer pump motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204059275U CN202274287U (en) | 2011-10-21 | 2011-10-21 | Overpressure protection system for liquefied gas filling pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204059275U CN202274287U (en) | 2011-10-21 | 2011-10-21 | Overpressure protection system for liquefied gas filling pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202274287U true CN202274287U (en) | 2012-06-13 |
Family
ID=46194648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204059275U Expired - Fee Related CN202274287U (en) | 2011-10-21 | 2011-10-21 | Overpressure protection system for liquefied gas filling pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202274287U (en) |
-
2011
- 2011-10-21 CN CN2011204059275U patent/CN202274287U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120613 Termination date: 20121021 |