CN204727853U - The outlet sealing structure for water of refinery gas recycling pipeline - Google Patents
The outlet sealing structure for water of refinery gas recycling pipeline Download PDFInfo
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- CN204727853U CN204727853U CN201520409131.5U CN201520409131U CN204727853U CN 204727853 U CN204727853 U CN 204727853U CN 201520409131 U CN201520409131 U CN 201520409131U CN 204727853 U CN204727853 U CN 204727853U
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Abstract
The utility model discloses a kind of outlet sealing structure for water of refinery gas recycling pipeline, the lower end inlet mouth of the bye-pass be communicated with main line is communicated with in the bottom of airtight water-sealed tank, airtight water-sealed tank on the lower part sidewall be communicated with water tank by equilibration tube, and water storage is deposited bottom water tank and airtight water-sealed tank, water storage water level is higher than the balance mouth of pipe, and equilibration tube open height is higher than bye-pass lower end inlet mouth; Airtight water-sealed tank top arranges vapor pipe and is communicated with burning pneumatic tube.It is simple that the utility model has structure, can the normal use of safety control refinery gas, guarantees pipeline safety.Automatically can increase anti back-flow pressure and release countercurrent pressure, substantially be in non-maintaining state.Very be applicable to promotion and implementation.
Description
Technical field
The utility model belongs to waste oil Petrochemical Enterprises refinery gas recovery technology field, is specifically related to a kind of outlet sealing structure for water of refinery gas recycling pipeline.
Background technology
Cleaner production is the important topic of petrochemical industry energy saving standard.For a long time, the oil-processing enterprises such as domestic and international refinery, petroleum chemical plant, pitch factory, lubricating oil plant is in the crude refining course of processing, to the usual method adopting high altitude discharge of refinery gas (noncondensable gas) that water distilling apparatus, fractionation plant Top of Vacuum Tower produce, so both caused a part of energy dissipation, again severe contamination was caused to surrounding area air ambient.
At present, refinery, petrochemical plant mostly adopt water vapor to vacuumize or very narrow two kinds of decompression methods taken out by machinery in production run.A kind of front method Top of Vacuum Tower is distillated gas through condenser and one-level vacuum ejector, enter intermediate condenser again, enter aftercondenser through second steam vacuum ejector again, then the refinery gas at aftercondenser top is entered in air, or directly burn.A kind of rear method is then Top of Vacuum Tower is distillated gas enter condenser, directly the extraction of the refinery gas of its napex is entered in air with vacuum pump, or directly burns.Measure according to assay, usually containing the low-density oil hydro carbons that content is very high, thermal value is larger in Top of Vacuum Tower tail gas, entered air or aloft burning be a kind of energy dissipation, direct discharge can cause environmental pollution, to increase economic efficiency and environmental protection all very unfavorable.
Publication number is the retrieving arrangement disclosing a kind of refinery atmospheric storage-tank waste gas in China Petrochemical Industry's patent documentation of CN204237054U, use the mode of refinery gas recycling as fuel energy after tank and reprocessing are deposited in employing or sell, require full-blown equipment, system complex, operational administrative cost is high.At present, do not have special effective means can using the refinery gas in oil refining enterprise's production process directly as internal power source safe handling, its reason be refinery gas when can there is the generation of explosive accident without use direct when safe handling.Because refinery gas is the by-product that oil refining generates, the features such as its limits throughput and persistence are not strong, are not suitable as main energy sources.Be difficult to control, easy entrained air sets off an explosion danger.Reclaim at refinery gas in the scheme directly utilized, only dependence arranges valve group and warning is used with still can not guaranteeing refinery gas completely safe.And the reasons such as the investigation that must stop production during alarm condition potential safety hazard, can affect generation progress and cause greater loss.
Utility model content
The purpose of this utility model reclaims for current refinery gas directly to utilize the problem that difficulty is very large, provide a kind of can the outlet water seal of safe and reliable recycling refinery gas, substitute and use valve group and warning howler scheme, make security reach 100%.
In order to reach the purpose of this utility model, the technical scheme adopted is: a kind of outlet sealing structure for water of refinery gas recycling pipeline, the lower end inlet mouth of the bye-pass be communicated with main line is communicated with in the bottom of airtight water-sealed tank, airtight water-sealed tank on the lower part sidewall be communicated with water tank by equilibration tube, and water storage is deposited bottom water tank and airtight water-sealed tank, meet: without under adverse current barometric information, water storage water level is higher than balancing the mouth of pipe, and equilibration tube open height is higher than bye-pass lower end inlet mouth; Airtight water-sealed tank top arranges vapor pipe and is communicated with burning pneumatic tube.Burning pneumatic tube sidewall is communicated with and fills blast main, fills blast main and is communicated with blower export.Water tank arranges water pump or automatic water distributor.
Beneficial effect: in the utility model, normal conditions are that main pipe rail exists the air pressure being greater than vapor pipe, make refinery gas flow in airtight water-sealed tank along main pipe rail, bye-pass, and enter in vapor pipe.But when main pipe rail pressure reduce, or because of vapor pipe pressure increase time, cause adverse current, force water in airtight water-sealed tank to be discharged in water tank during adverse current, water tank has suitable volume, can increase the pressure to adverse current after water level increases, change countercurrent direction.When vapor pipe internal pressure unexpected excessive time (such as because of burning pneumatic tube in there is explosion among a small circle time cause reverse impulse force), air inversion can be forced to enter in airtight water-sealed tank, now water level is lower than the balance mouth of pipe, and counter-current gas will be discharged along equilibration tube to water tank side.And also some water column in bye-pass, and to rise with countercurrent pressure water column and increase resistance to adverse current, after counter-current gas is discharged from equilibration tube to water tank, pressure reduces, so water column can not rise to too higher position in bye-pass, thus counter-current gas can not be introduced in main pipe rail.Thus guarantee that vapor pipe safety and main pipe rail are perfectly safe.Without the need to arranging by-pass valve control especially, even if there is by-pass valve control, it is also unit of fit.Visible, it is simple that the utility model has structure, can the normal use of safety control refinery gas, guarantees pipeline safety.Automatically can increase anti back-flow pressure and release countercurrent pressure, substantially be in non-maintaining state.Very be applicable to promotion and implementation.
Accompanying drawing explanation
Fig. 1 is the outlet sealing structure for water schematic diagram of the utility model refinery gas recycling pipeline.
Fig. 2 is the structural representation that Fig. 1 sealing structure for water resists counter-current gas automatically.
Fig. 3 is the structural representation that Fig. 1 sealing structure for water discharges counter-current gas automatically.
In figure, numbering 1 is main pipe rail, and 2 is bye-pass, 3 is airtight water-sealed tank, and 4 is vapor pipe, and 5 for filling blast main, 6 is burning pneumatic tube, and 7 is equilibration tube, and 8a is exit water tank, 8b locates water tank for house steward, 8c is ingress water tank, and 9 is top pipeline, and 10 is gas-liquid separator, 11 is gas manifold, and 12 is water-main.
Embodiment
Below in conjunction with accompanying drawing, specific embodiments of the present utility model is described in detail:
See Fig. 1, the outlet sealing structure for water of refinery gas recycling pipeline comprises airtight water-sealed tank 3 and water tank 8 and associated pipe.Wherein, main line is communicated with multiple bye-pass 2, and refinery gas is dispersed in each roasting kiln and burns by each bye-pass 2.The lower end inlet mouth of bye-pass 2 is communicated with in the bottom of airtight water-sealed tank 3.The sidewall of airtight water-sealed tank 3 part is on the lower communicated with water tank 8 by equilibration tube 7, and deposits water storage bottom water tank 8 and airtight water-sealed tank 3.Water pump or automatic water distributor can be set on water tank 8.
Usually, without under adverse current barometric information, there is the air pressure being greater than vapor pipe 4 in main pipe rail 1, refinery gas is flowed along main pipe rail 1, bye-pass 2 in airtight water-sealed tank 3, and enters in vapor pipe 4.
Airtight water-sealed tank 3 top arranges vapor pipe 4 and is communicated with burning pneumatic tube 6.Burning pneumatic tube 6 sidewall is communicated with and fills blast main 5, fills blast main 5 and is communicated with blower export.
Water storage water level is higher than equilibration tube 7 mouthfuls, and equilibration tube 7 open height is higher than bye-pass 2 lower end inlet mouth.
When main pipe rail 1 pressure reduce, or because of vapor pipe 4 pressure increase time, cause adverse current, force water in airtight water-sealed tank 3 to be discharged in water tank 8 during adverse current, water tank 8 has suitable volume, can increase the pressure to adverse current after water level increases, change countercurrent direction.This process automatically resists counter-current gas.
When cause because of a variety of causes vapor pipe 4 internal pressure unexpected excessive time (such as because of burning pneumatic tube 6 in there is explosion among a small circle time cause reverse impulse force), air inversion can be forced to enter in airtight water-sealed tank 3, now water level is lower than equilibration tube 7 mouthfuls, and counter-current gas will be discharged along equilibration tube 7 to water tank side.This process automatically discharges counter-current gas.
But from start to finish, some water column in bye-pass 2, and can rise with countercurrent pressure water column and increase resistance to adverse current.When occurring that in vapor pipe 4, adverse current air pressure is excessive when counter-current gas (automatically release), counter-current gas discharges from equilibration tube 7 to water tank after pressure reduction, so water column can not rise to too higher position in bye-pass 2, thus counter-current gas can not be introduced in main pipe rail 1.Thus guarantee that vapor pipe 4 safety and main pipe rail 1 are perfectly safe.
Adopt such scheme, without the need to arranging by-pass valve control especially, but by-pass valve control can be with the use of.Above-mentioned automatic increase anti back-flow pressure and release countercurrent pressure, be substantially in non-maintaining state, be very applicable to promotion and implementation.
Claims (3)
1. the outlet sealing structure for water of a refinery gas recycling pipeline, it is characterized in that, the lower end inlet mouth of the bye-pass be communicated with main line is communicated with in the bottom of airtight water-sealed tank, airtight water-sealed tank on the lower part sidewall be communicated with water tank by equilibration tube, and water storage is deposited bottom water tank and airtight water-sealed tank, meet: without under adverse current barometric information, water storage water level is higher than balancing the mouth of pipe, and equilibration tube open height is higher than bye-pass lower end inlet mouth; Airtight water-sealed tank top arranges vapor pipe and is communicated with burning pneumatic tube.
2. the outlet sealing structure for water of refinery gas recycling pipeline according to claim 1, is characterized in that, burning pneumatic tube sidewall is communicated with and fills blast main, fills blast main and is communicated with blower export.
3. the outlet sealing structure for water of refinery gas recycling pipeline according to claim 1, is characterized in that, water tank arranges water pump or automatic water distributor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520409131.5U CN204727853U (en) | 2015-06-15 | 2015-06-15 | The outlet sealing structure for water of refinery gas recycling pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520409131.5U CN204727853U (en) | 2015-06-15 | 2015-06-15 | The outlet sealing structure for water of refinery gas recycling pipeline |
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| Publication Number | Publication Date |
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| CN204727853U true CN204727853U (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520409131.5U Active CN204727853U (en) | 2015-06-15 | 2015-06-15 | The outlet sealing structure for water of refinery gas recycling pipeline |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972263A (en) * | 2016-07-15 | 2016-09-28 | 洛阳德正废弃资源再利用有限公司 | Waste oil recovery and distillation retort front water sealing device capable of achieving isolation |
| CN107039669A (en) * | 2017-04-24 | 2017-08-11 | 上海重塑能源科技有限公司 | A kind of tail heat-extraction system of gas exhaust piping and a kind of fuel cell |
-
2015
- 2015-06-15 CN CN201520409131.5U patent/CN204727853U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972263A (en) * | 2016-07-15 | 2016-09-28 | 洛阳德正废弃资源再利用有限公司 | Waste oil recovery and distillation retort front water sealing device capable of achieving isolation |
| CN107039669A (en) * | 2017-04-24 | 2017-08-11 | 上海重塑能源科技有限公司 | A kind of tail heat-extraction system of gas exhaust piping and a kind of fuel cell |
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| C14 | Grant of patent or utility model | ||
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