CN201299990Y - Gas-liquid separation device of double-screw liquefied gas pump and pumping system of liquefied gas pump at gas station - Google Patents
Gas-liquid separation device of double-screw liquefied gas pump and pumping system of liquefied gas pump at gas station Download PDFInfo
- Publication number
- CN201299990Y CN201299990Y CNU200820143478XU CN200820143478U CN201299990Y CN 201299990 Y CN201299990 Y CN 201299990Y CN U200820143478X U CNU200820143478X U CN U200820143478XU CN 200820143478 U CN200820143478 U CN 200820143478U CN 201299990 Y CN201299990 Y CN 201299990Y
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- gas
- liquid separation
- liquefied gas
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- twin
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Abstract
The utility model provides a gas-liquid separation device for double-screw liquefied gas pumps, which comprises a gas-liquid separation tank body, a throttling pipe set, a by-pass line comprising a safety valve and a by-pass valve, and the like, wherein, a gas-liquid separation baffle plate is arranged in the gas-liquid separation tank body; interfaces connected with a gas dispenser, a liquefied gas storage tank and a double-screw liquefied gas pump are arranged below the baffle plate; both the throttling pipe set and the by-pass line are arranged above the baffle plate; and a gas-phase liquefied gas overflowing pipe is arranged in the throttling pipe set. The utility model can separate the gas phase and the liquid phase of the liquefied gas in the outlet of the double-screw liquefied gas pump completely, ensures liquid-phase liquefied gas is reserved at the bottom of the separation tank all along, and ensures the output of pure liquid-phase liquefied gas. The gas-phase liquefied gas separated by the gas-liquid separation tank can pressurize a liquefied gas container after returning the liquefied gas container through a gas-phase overflow port. Therefore, the utility model further has the advantages that not only the gasification process of liquefied gas in the liquefied gas container is slowed down, but also the unexpected open of the safety valve in the device can be avoided.
Description
[technical field]
The utility model relates to the device of a kind of liquefied gas gas phase, liquid phase separation, particularly a kind of twin-screw liquefied gas pump exit liquefied gas gas phase at liquid gas station, the device of liquid phase separation.
[background technology]
At liquid gas station, liquefied gas pumps to the process of filling machine from basin, because pumping element is to the agitaion of liquefied gas, the variation of loine pressure and the variation of pipeline environment temperature, more serious gasification phenomenon takes place at delivery side of pump ubiquity liquefied gas, cause the liquefied gas that is mixed with gas phase to enter filling machine, cause filling machine work discontinuous, had a strong impact on the operating efficiency of filling machine.In the frequent unlatching that usually seriously causes relief valve intermittence because of gasifying of aerating, this not only wastes resource in addition, surrounding environment is polluted, and have great potential safety hazard.Along with twin-screw liquefaction pump at home liquefied gas station obtain more and more widely application, be badly in need of liquefied gas gas-liquid separation device a kind of suitable twin-screw liquefied gas pump, that be installed in the outlet of twin-screw liquefied gas pump.
[utility model content]
The purpose of this utility model is in order to overcome the deficiencies in the prior art, and provide a kind of twin-screw liquefied gas pump gas-liquid separation device, and use the gas station liquefied gas of this twin-screw liquefied gas pump gas-liquid separation device to pump system, the utility model can fully separate gas phase and the liquid phase liquefied gas in the liquefied gas of twin-screw liquefied gas pump exit, guarantees the full liquid phase liquefied gas output of Machine for filling LPG into cylinder.
The utility model be address the above problem the scheme that is adopted be the design a kind of twin-screw liquefied gas pump gas-liquid separation device.It comprises the gas-liquid separation tank body, the throttle pipe group, and the bypass line of being made up of safety valve, by-passing valve, and pressure switch and Pressure gauge is characterized in that being provided with in the described gas-liquid separation tank body gas-liquid separation dividing plate; Below the gas-liquid separation dividing plate of gas-liquid separation tank body, be respectively equipped with the interface that connects filling machine, liquefied gas storage, twin-screw liquefied gas pump; Described gas-liquid separation tank body connects throttle pipe group and bypass line respectively above the gas-liquid separation dividing plate, and described throttle pipe group be connected liquified gas container and aerating gas collection vessel respectively by two outlets again after bypass line connects outside jar; Be provided with a gas phase liquefied gas flow tube in the described throttle pipe group.
The utility model uses the gas station liquefied gas of twin-screw liquefied gas pump gas-liquid separation device to pump system, comprise the twin-screw liquefied gas pump, liquified gas container, filling machine, gas collection vessel and pipeline, the import that it is characterized in that described twin-screw liquefied gas pump knockout drum connects with the twin-screw liquefied gas pump, the import of filling machine is linked at the gas-liquid separation dividing plate below of twin-screw liquefied gas pump knockout drum, the gas-liquid separation dividing plate below of described twin-screw liquefied gas pump knockout drum and top also respectively with liquified gas container UNICOM; The gas-liquid separation dividing plate of twin-screw liquefied gas pump knockout drum top links by throttle pipe group and bypass line and liquified gas container and gas collection vessel.
The beneficial effects of the utility model are: special gas-liquid separation baffle design, gas phase and the liquid phase that can fully separate twin-screw liquefied gas pump exit liquefied gas.Design can guarantee that in the throttle pipe group on knockout drum top the bottom of knockout drum has the liquid phase liquefied gas all the time.Vertical installation design and design are at the filling machine interface of the bottom of knockout drum, and the liquefied gas of guaranteeing to be transported in the filling machine is pure liquid phase.Through the isolated gas phase liquefied gas of knockout drum, turn back to liquified gas container by the gas phase refluxing opening, can give the pressurization of liquefied gas basin, the gasification process that both can slow down liquefied gas in the basin can be prevented the unexpected unlatching of safety valve in the locking apparatus again.When the hypertonia in the knockout drum, the gas phase liquefied gas can be disposed in the special container through safety valve automatically, has both improved its security, avoids the pollution to surrounding environment again.
[description of drawings]
Fig. 1 is not for to pump system schematic with the gas station liquefied gas of gas-liquid separation device;
Fig. 2 pumps system schematic for being equipped with gas station of the present utility model liquefied gas;
Fig. 3 is a twin-screw liquefied gas pump gas-liquid separation device structural front view;
Fig. 4 is a twin-screw liquefied gas pump gas-liquid separation device structure vertical view;
Fig. 5 is the knockout drum partial view.
Among the figure: the 1--knockout drum; 2-throttle pipe group; 3-ball valve; 4-pressure switch; 5-Pressure gauge; 7-safety valve; 8-by-passing valve; 9-twin-screw liquefied gas pump; 10-liquified gas container; 11-gas-liquid separation dividing plate; 12-gas phase liquefied gas flow tube; 13---the gas-liquid separation hole.
Be described in detail with reference to accompanying drawing below in conjunction with embodiment of the present utility model.
[specific embodiment]
The utility model twin-screw liquefied gas pump gas-liquid separation device, by gas-liquid separation tank body 1, throttle pipe group 2 and bypass line assembly (containing safety valve 7, by-passing valve 8 etc.), and compositions such as pressure switch 4 and Pressure gauge 5, as shown in Figure 3-4.
Be provided with a gas-liquid separation dividing plate 11 in the gas-liquid separation tank body of the present utility model, described gas-liquid separation dividing plate is a multilayer, staggered and be obliquely installed, have gas-liquid separation hole 13 on the gas-liquid separation dividing plate, this hole is circular hole or elongate slot, greatly about 2.5mm～5mm scope; Described gas-liquid separation dividing plate dividing plate can be that circle also can be a semilune; Become 8 °～15 ° with horizontal plane.Below the dividing plate of gas-liquid separation tank body 1, be respectively equipped with the interface that connects filling machine, liquefied gas storage 10, twin-screw liquefied gas pump 9; Above dividing plate, connect throttle pipe group and bypass line respectively, and the throttle pipe group be connected liquified gas container and aerating gas collection vessel respectively by two outlets again after bypass line connects outside jar.
Be provided with a gas phase liquefied gas flow tube 12 that has damping hole in the described throttle pipe group, only allow that the gas phase liquefied gas is controlled to be passed through.This damping hole diameter is approximately φ 2.5mm～φ 5mm.
Each pipe interface on the described gas-liquid separation tank body can be a flange-interface, also can be hickey.
With reference to accompanying drawing 2-5, operation principle of the present utility model is: when the liquefied gas in the basin 10 is transported in the knockout drum 1 by twin-screw liquefied gas pump 9, compartmentation because of gas-liquid separation dividing plate 11, the liquid phase liquefied gas is stored in the bottom of knockout drum, the gas phase liquefied gas is separated and rises to the top of knockout drum, the gas phase liquefied gas is separated fully with the liquid phase liquefied gas, isolated liquid phase liquefied gas directly enters filling machine through the outlet of knockout drum, and unnecessary liquid phase liquefied gas is got back in the liquified gas container by refluxing opening.
When the required flow of filling machine reduced, unnecessary liquid phase liquefied gas will be got back in the liquified gas container by the liquid-phase reflux mouth in the knockout drum.
When pressure super in the knockout drum surpasses setting value, ball valve 3 in the throttle pipe group can be opened, part gas phase liquefied gas will be back in the liquified gas container by the gas phase liquefied gas flow channels 12 that has damping hole, make the pressure in the liquified gas container raise, slow down the gasification process of liquefied gas in the basin, guarantee the unexpected unlatching of safety valve in the device.
When whole device place pipeline breaks down when causing pressure in the knockout drum to surpass setting value, by-passing valve 8 will be opened on the knockout drum, and the gas phase liquefied gas is back to liquified gas container by bypass line; When the pressure in the liquified gas container exceeded the pressure of safety valve 7 settings, safety valve 7 was opened, and superpressure gas phase liquefied gas is disposed to special gas collection vessel and is recovered.
Claims (7)
1, a kind of twin-screw liquefied gas pump gas-liquid separation device, comprise the gas-liquid separation tank body, throttle pipe group, the bypass line of forming by safety valve, by-passing valve, and pressure switch and Pressure gauge, it is characterized in that being provided with in the described gas-liquid separation tank body gas-liquid separation dividing plate; Below the gas-liquid separation dividing plate of gas-liquid separation tank body, be respectively equipped with the interface that connects filling machine, liquefied gas storage, twin-screw liquefied gas pump; Described gas-liquid separation tank body connects throttle pipe group and bypass line respectively above the gas-liquid separation dividing plate, and described throttle pipe group be connected liquified gas container and aerating gas collection vessel respectively by two outlets again after bypass line connects outside jar; Be provided with a gas phase liquefied gas flow tube in the described throttle pipe group.
2, twin-screw liquefied gas pump gas-liquid separation device according to claim 1 is characterized in that described gas-liquid separation dividing plate is a multilayer, staggered and be obliquely installed, and has the gas-liquid separation hole on the gas-liquid separation dividing plate, and this hole is circular hole or elongate slot.
3, twin-screw liquefied gas pump gas-liquid separation device according to claim 1 and 2 is characterized in that described gas-liquid separation dividing plate is circle or semilune.
4, twin-screw liquefied gas pump gas-liquid separation device according to claim 1 is characterized in that being provided with damping hole in the described gas phase liquefied gas flow tube.
5, twin-screw liquefied gas pump gas-liquid separation device according to claim 4 is characterized in that the damping hole diameter in the described gas phase liquefied gas flow tube is φ 2.5mm～φ 5mm.
6, twin-screw liquefied gas pump gas-liquid separation device according to claim 1 is characterized in that each pipe interface on the described gas-liquid separation tank body is a flange-interface, or hickey.
7, a kind of gas station liquefied gas of claim 1 twin-screw liquefied gas pump gas-liquid separation device that uses is pumped system, comprise the twin-screw liquefied gas pump, liquified gas container, filling machine, gas collection vessel and pipeline, the import that it is characterized in that described twin-screw liquefied gas pump knockout drum connects with the twin-screw liquefied gas pump, the import of filling machine is linked at the gas-liquid separation dividing plate below of twin-screw liquefied gas pump knockout drum, the gas-liquid separation dividing plate below of described twin-screw liquefied gas pump knockout drum and top also respectively with liquified gas container UNICOM; The gas-liquid separation dividing plate of twin-screw liquefied gas pump knockout drum top links by throttle pipe group and bypass line and liquified gas container and gas collection vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820143478XU CN201299990Y (en) | 2008-11-25 | 2008-11-25 | Gas-liquid separation device of double-screw liquefied gas pump and pumping system of liquefied gas pump at gas station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820143478XU CN201299990Y (en) | 2008-11-25 | 2008-11-25 | Gas-liquid separation device of double-screw liquefied gas pump and pumping system of liquefied gas pump at gas station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201299990Y true CN201299990Y (en) | 2009-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820143478XU Expired - Fee Related CN201299990Y (en) | 2008-11-25 | 2008-11-25 | Gas-liquid separation device of double-screw liquefied gas pump and pumping system of liquefied gas pump at gas station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201299990Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278595A (en) * | 2011-08-18 | 2011-12-14 | 东莞市九丰化工有限公司 | Unattended liquefied gas transmission station |
-
2008
- 2008-11-25 CN CNU200820143478XU patent/CN201299990Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278595A (en) * | 2011-08-18 | 2011-12-14 | 东莞市九丰化工有限公司 | Unattended liquefied gas transmission station |
| CN102278595B (en) * | 2011-08-18 | 2013-06-05 | 东莞市九丰化工有限公司 | Unattended liquefied gas transmission station |
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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: 20090902 Termination date: 20161125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |