CN104214519A - Method and device for preventing high-pressure and low-pressure flare gas channeling of gas inlet cabinet - Google Patents
Method and device for preventing high-pressure and low-pressure flare gas channeling of gas inlet cabinet Download PDFInfo
- Publication number
- CN104214519A CN104214519A CN201310221538.0A CN201310221538A CN104214519A CN 104214519 A CN104214519 A CN 104214519A CN 201310221538 A CN201310221538 A CN 201310221538A CN 104214519 A CN104214519 A CN 104214519A
- Authority
- CN
- China
- Prior art keywords
- gas
- low pressure
- sealed tank
- water
- water sealed
- 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.)
- Pending
Links
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a method and device for preventing high-pressure and low-pressure flare gas channeling of a gas inlet cabinet. The method comprises the steps that high-pressure flare gas enters the gas inlet cabinet through a high-pressure flare gas pipeline and a water sealing tank, and low-pressure flare gas enters the gas inlet cabinet through a low-pressure flare gas pipeline and a water sealing tank. The method and device avoid the gas channeling danger, the method is simple in process, adopted equipment is simple in structure, and safety and reliability are achieved.
Description
Technical field
The invention belongs to oil refining and the discharge of chemical enterprise inflammable gas and recovery field, is a kind ofly produce the method for altering mutually for refining oil and prevent in chemical enterprise gas holder from collecting when high and low pressure is dropped a hint.
Background technique
Oil refining and chemical enterprise inflammable gas discharge and reclaiming system ensures the important measures of safety in production and the measure of environmental protection and energy saving; due to the difference of the discharge back pressure of the inflammable gas of device discharge; two releasing systems can be set usually; i.e. high and low pressure torch emptying two systems; during normal production; high pressure, low-pressure flare gas enter gas holder facility as far as possible and reclaim; use as factory's fuel gas after compressor force feed to Upgrade for Dry Gas Desulphurization Unit desulfurization again; realize emissions reduction, save the object of the energy.
Due to height, low pressure flare blowdown system also exists the asynchronous and pressure surge of emptying, when there is air inlet cabinet main valve and closing, can occur high, low-pressure flare gas alters phenomenon mutually, cause very large danger, in order to avoid the generation of this phenomenon, petroleum chemical industry many employings pressure interlock controls high, the technological method of low-pressure admission valve, but this method is due to the unstability in pressure signal source, the restraining factors such as valve switching times delay and control system reaction velocity, cannot fundamentally solve high, the generation of low-pressure flare gas gas-blowing phenomenon, stop height, low-pressure flare gas alters the generation of phenomenon mutually, petrochemical plant is in danger.
Summary of the invention
The present invention is the shortcoming overcoming prior art, provide a kind of technological method preventing the high and low pressure torch gas of air inlet cabinet from altering mutually, before high and low pressure torch gas air inlet cabinet, water sealed tank is set, have water scrub function concurrently, high and low pressure being discharged feed channel inserts under water seal tank level respectively, utilize water seal the impact of the gas pressure of fluctuation to be eliminated when the pressure change of high and low pressure torch gas, fundamentally solve the problem that high and low pressure torch gas is altered mutually, make the process units of petrochemical enterprise be in safe production status.
The method preventing the high and low pressure torch gas of air inlet cabinet from altering mutually, comprising: high pressure flare gas enters gas holder by high pressure flare gas pipeline and water sealed tank, and low-pressure flare gas enters gas holder by low pressure flare gas pipeline and water sealed tank.
Described high pressure flare gas pipeline outlet is inserted into below the water sealed tank water surface, and described low-pressure flare gas pipeline outlet is inserted into below the water sealed tank water surface.
Prevent the device that the high and low pressure torch gas of air inlet cabinet is altered mutually, become by water sealed tank, gentle group, it is characterized in that: high pressure flare gas pipeline is communicated with water sealed tank with low pressure flare gas pipeline, and gas holder is communicated with water sealed tank.
Described water sealed tank is also provided with heating or accompanies hot facility.
Described high pressure flare gas pipeline enters into below the inner water surface of water sealed tank, and insertion depth is 50 ~ 800mm, preferably 100 ~ 400mm; Described low pressure flare gas pipeline enters into below the inner water surface of water sealed tank, and insertion depth is 50 ~ 800mm, preferably 100 ~ 400mm.
The volume of the water (liquid) above water corresponding to described high pressure flare gas pipeline insertion depth is not less than the volume of high pressure flare gas pipeline standpipe, and the volume of the water liquid above water corresponding to described low pressure flare gas pipeline insertion depth is not less than the volume of low pressure flare gas pipeline standpipe.
Described high pressure flare gas pipeline standpipe height should be not less than the most flood liquid-column height that gas-phase space place high pressure, low pressure flare draught head in water sealed tank can reach, and described low pressure flare gas pipeline standpipe height should be not less than most flood (liquid) the post height that gas-phase space place high pressure, low pressure flare draught head in water sealed tank can reach.
The method preventing the high and low pressure torch gas of air inlet cabinet from altering mutually, is described below: when high and low pressure torch gas normally reclaims, as long as high and low pressure torch gas can break through the water seal of water sealed tank, get final product air inlet cabinet, the gas entering gas holder is for subsequent use as fuel; When air inlet cabinet main valve cuts out, when high pressure flare gas enters water sealed tank, pressure in water sealed tank raises, water in water sealed tank is pressed into low-pressure admission standpipe, when the pressure after gas pressure in low-pressure admission standpipe superposes with low pressure flare gas pipeline standpipe water-filling liquid-column height equals the pressure of high pressure flare gas in water sealed tank, just can ensure that high pressure flare gas can not scurry into low pressure flare feed channel, prevent the danger because gas blowby causes.
A kind of method preventing the high and low pressure torch gas of air inlet cabinet from altering mutually of the present invention, under the operating mode of closing at gas holder import main valve can be ensured, due to the effect of water seal, high pressure flare gas can not scurry into low pressure flare feed channel, prevent the appearance due to gas blowby danger, the method concise in technology, device therefor structure are simple, safe and reliable, are applicable to the problem that solution is refined oil and chemical field prevents the high and low pressure torch gas of air inlet cabinet from altering mutually.
In order to prevent the generation of the water freezing phenomenon in water sealed tank, water sealed tank can arrange heating or accompany hot facility.
The principle of the invention is: before high and low pressure torch gas air inlet cabinet, arrange water sealed tank have water scrub function concurrently, and high and low pressure is discharged feed channel and insert below water seal tank level respectively; Insertion depth should be less than the water seal height of torch water sealed tank, and in the water sealed tank above water corresponding to insertion depth, the volume of water (liquid) is not less than the volume of torch gas pipeline standpipe; Torch gas pipeline standpipe height should be not less than most flood (liquid) the post height that can reach at water sealed tank place high pressure, low pressure flare draught head.
The present invention is compared with prior art: concise in technology, device therefor structure are simple, safe and reliable, the high and low pressure torch gas that fundamentally can solve air inlet cabinet alters problem mutually, improve the safety reliability of the discharge of petrochemical enterprise inflammable gas and reclaiming system, water sealed tank has water scrub function concurrently.
Accompanying drawing explanation
Fig. 1 is a kind of method schematic diagram preventing the high and low pressure torch gas of air inlet cabinet from altering mutually of the present invention.
Wherein: 1. water sealed tank, 2. heat or accompany hot facility, 3. gas holder, 4. high pressure flare, 5. low pressure flare 6. high pressure flare gas pipeline, 7. low pressure flare gas pipeline, 8. high pressure flare divides flow container, 9. low pressure flare divides flow container, 10. high pressure flare water sealed tank, 11. low pressure flare water sealed tanks, 12. low pressure flare gas pipeline standpipe height, 13. high pressure flare gas pipelines, low pressure flare gas pipeline insertion depth.
Embodiment
Embodiment 1
As shown in Figure 1, when high and low pressure torch gas normally reclaims, as long as high and low pressure torch gas can break through the water seal of water sealed tank, get final product air inlet cabinet, the gas entering gas holder is for subsequent use as fuel;
Embodiment 2
As shown in Figure 1, when air inlet cabinet main valve cuts out, when high pressure flare gas enters water sealed tank, pressure in water sealed tank raises, water in water sealed tank is pressed into low-pressure flare gas air inlet standpipe, when gas pressure in low-pressure admission standpipe equals the pressure of high pressure flare gas in water sealed tank after adding water-filling liquid-column height, just can ensure that high pressure flare gas can not scurry into low pressure flare feed channel, prevent the danger because gas blowby causes.
Embodiment 3
As shown in Figure 1, when high and low pressure torch gas normally reclaims, as long as high and low pressure torch gas can break through the water seal 100mm of water sealed tank, get final product air inlet cabinet, the gas entering gas holder is for subsequent use as fuel.
When air inlet cabinet main valve cuts out, high pressure flare gas enters water sealed tank, pressure in water sealed tank raises, water in water sealed tank is pressed into low pressure flare gas pipeline standpipe, water sealed tank diameter 3000mm, high pressure, low pressure flare gas pipeline insertion depth are 100mm, when gas pressure 0.004MPaG in low pressure flare gas pipeline add to equal the pressure 0.067MPaG of high pressure flare gas in water sealed tank after water-filling liquid-column height 6300mm time, just can ensure that high pressure flare gas can not scurry into low pressure flare feed channel, prevent the danger because gas blowby causes.
Claims (10)
1. the method preventing the high and low pressure torch gas of air inlet cabinet from altering mutually, comprising: high pressure flare gas enters gas holder by high pressure flare gas pipeline and water sealed tank, and low-pressure flare gas enters gas holder by low pressure flare gas pipeline and water sealed tank.
2. according to a kind of method preventing the high and low pressure torch gas of air inlet cabinet from altering mutually according to claim 1, it is characterized in that: described high pressure flare gas pipeline outlet is inserted into below the water sealed tank water surface, and described low-pressure flare gas pipeline outlet is inserted into below the water sealed tank water surface.
3. prevent the device that the high and low pressure torch gas of air inlet cabinet is altered mutually, become by water sealed tank, gentle group, it is characterized in that: high pressure flare gas pipeline is communicated with water sealed tank with low pressure flare gas pipeline, and gas holder is communicated with water sealed tank.
4. according to the device that claim 3 one kind prevents the high and low pressure torch gas of air inlet cabinet from altering mutually, it is characterized in that: described water sealed tank is also provided with heating or accompanies hot facility.
5. according to the device that claim 3 one kind prevents the high and low pressure torch gas of air inlet cabinet from altering mutually, it is characterized in that: described high pressure flare gas pipeline enters into below water sealed tank internal water plane, insertion depth is 50 ~ 800mm, and preferred insertion depth is 100 ~ 400mm.
6. according to the device that claim 3 one kind prevents the high and low pressure torch gas of air inlet cabinet from altering mutually, it is characterized in that: described low pressure flare gas pipeline enters into below water sealed tank internal water plane, and insertion depth is 50 ~ 800mm, and insertion depth is 100 ~ 400mm.
7. according to the device that claim 3 one kind prevents the high and low pressure torch gas of air inlet cabinet from altering mutually, it is characterized in that: in the described water sealed tank above water corresponding to high pressure flare gas pipeline insertion depth, the volume of water liquid is not less than the volume of high pressure flare gas pipeline standpipe.
8. according to the device that claim 3 one kind prevents the high and low pressure torch gas of air inlet cabinet from altering mutually, it is characterized in that: in the described water sealed tank above water corresponding to low pressure flare gas pipeline insertion depth, the volume of water liquid is not less than the volume of low pressure flare gas pipeline standpipe.
9. according to the device that claim 3 one kind prevents the high and low pressure torch gas of air inlet cabinet from altering mutually, it is characterized in that: described high pressure flare gas pipeline standpipe height should be not less than the most flood liquid-column height that gas-phase space place high pressure, low pressure flare draught head in water sealed tank can reach.
10. according to the device that claim 3 one kind prevents the high and low pressure torch gas of air inlet cabinet from altering mutually, it is characterized in that: described low pressure flare gas pipeline standpipe height should be not less than the most flood liquid-column height that gas-phase space place high pressure, low pressure flare draught head in water sealed tank can reach.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310221538.0A CN104214519A (en) | 2013-05-30 | 2013-05-30 | Method and device for preventing high-pressure and low-pressure flare gas channeling of gas inlet cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310221538.0A CN104214519A (en) | 2013-05-30 | 2013-05-30 | Method and device for preventing high-pressure and low-pressure flare gas channeling of gas inlet cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104214519A true CN104214519A (en) | 2014-12-17 |
Family
ID=52096287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310221538.0A Pending CN104214519A (en) | 2013-05-30 | 2013-05-30 | Method and device for preventing high-pressure and low-pressure flare gas channeling of gas inlet cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104214519A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299661A (en) * | 2015-11-03 | 2016-02-03 | 北京航天动力研究所 | Treatment system and method suitable for acetylene-enriched flare gas |
| CN107270313A (en) * | 2017-06-30 | 2017-10-20 | 中石化炼化工程（集团）股份有限公司 | Ground flare and exhaust treatment system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3852023A (en) * | 1972-12-27 | 1974-12-03 | Hitachi Shipbuilding Eng Co | Apparatus disposing waste gas by burning |
| US3852019A (en) * | 1972-06-27 | 1974-12-03 | Texaco Inc | High capacity smokeless flare having a very low gas flow detector |
| CN101634454A (en) * | 2009-08-26 | 2010-01-27 | 上海凯鸿环保工程有限公司 | Burner switching system and burner switching method |
| CN202328262U (en) * | 2011-11-30 | 2012-07-11 | 神华集团有限责任公司 | Water-sealed tank |
| CN202884483U (en) * | 2012-10-15 | 2013-04-17 | 江苏中圣高科技产业有限公司 | Automatic control water seal valve system for fast automatic water supplement of flare gas recovery and discharge |
-
2013
- 2013-05-30 CN CN201310221538.0A patent/CN104214519A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3852019A (en) * | 1972-06-27 | 1974-12-03 | Texaco Inc | High capacity smokeless flare having a very low gas flow detector |
| US3852023A (en) * | 1972-12-27 | 1974-12-03 | Hitachi Shipbuilding Eng Co | Apparatus disposing waste gas by burning |
| CN101634454A (en) * | 2009-08-26 | 2010-01-27 | 上海凯鸿环保工程有限公司 | Burner switching system and burner switching method |
| CN202328262U (en) * | 2011-11-30 | 2012-07-11 | 神华集团有限责任公司 | Water-sealed tank |
| CN202884483U (en) * | 2012-10-15 | 2013-04-17 | 江苏中圣高科技产业有限公司 | Automatic control water seal valve system for fast automatic water supplement of flare gas recovery and discharge |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299661A (en) * | 2015-11-03 | 2016-02-03 | 北京航天动力研究所 | Treatment system and method suitable for acetylene-enriched flare gas |
| CN107270313A (en) * | 2017-06-30 | 2017-10-20 | 中石化炼化工程（集团）股份有限公司 | Ground flare and exhaust treatment system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201689688U (en) | System for cooling reactor core, filling water in reactor cavity and guiding out heat of containment | |
| CN103616324B (en) | A kind of wet H 2the multiphase flow erosion corrosion test platform of S environment | |
| CN104214519A (en) | Method and device for preventing high-pressure and low-pressure flare gas channeling of gas inlet cabinet | |
| CN202418740U (en) | Improved water seal system for torch gas | |
| CN103527929B (en) | A kind of flare gas recovery seal water system and method | |
| CN104964291A (en) | Direct recovery method and device applicable to industrial high-flow large-regulation-ratio flare gas | |
| CN204328482U (en) | A kind of LPG tank pipe-line system | |
| CN203836610U (en) | Nitrogen out-conveying pipeline | |
| CN203484026U (en) | Graded water-seal device for waste gases | |
| CN202729345U (en) | Pneumatic dedusting system | |
| CN211311385U (en) | Arene adsorption system after transformation | |
| CN101893231A (en) | Boiler periodic/continuous blowdown pressure-increasing and thermal energy-recovering device | |
| CN201672252U (en) | Emptied natural gas injection recovery device for gas gathering station | |
| CN103727547A (en) | Ground torch hierarchical control method | |
| CN105013295A (en) | Emergency treatment system and method for fluorine-carbon alkane production device | |
| CN203463939U (en) | Leaked chlorine gas absorption device | |
| CN104616707A (en) | Boron injection system for second reactor shutdown system of research reactor | |
| CN204988658U (en) | A equipment for tanker aircraft | |
| CN204768171U (en) | Emergency treatment system of fluorine carbon alkane apparatus for producing | |
| CN206905026U (en) | A kind of marsh gas power generation air inlet protection device | |
| CN204627797U (en) | A kind of gas electricity unit blending LNG fuel apparatus | |
| CN105134145A (en) | Carbon dioxide flooding technology | |
| CN204879450U (en) | Steam dump device | |
| CN203892875U (en) | Safety release and recovery system for liquefied coal-bed gas low-temperature pipeline | |
| CN102878425B (en) | Device for avoiding liquid layering in liquefied natural gas storage tank |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141217 |
|
| WD01 | Invention patent application deemed withdrawn after publication |