CN104875984A - Storage-tank gas-phase communication method - Google Patents
Storage-tank gas-phase communication method Download PDFInfo
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- CN104875984A CN104875984A CN201510185720.4A CN201510185720A CN104875984A CN 104875984 A CN104875984 A CN 104875984A CN 201510185720 A CN201510185720 A CN 201510185720A CN 104875984 A CN104875984 A CN 104875984A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/22—Safety features
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- Treating Waste Gases (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention relates to a storage-tank gas-phase communication method and mainly solves the problems of breather loss as well as gas-phase burning explosion risk and low oil-gas recovery efficiency in the prior art. The storage-tank gas-phase communication method includes that gas-phase spaces of storage tanks are connected through a gas-phase communication device, the gas-phase communication device comprises gas-phase communication pipelines (1), an oil-gas adsorption and desorption tank (2), an oil-gas recovery pipeline (3), an oil-gas recovery device (4), a control valve (5), emergency cut-off valves (7), flame arresters (8) and at least one storage tank (9), one emergency cut-off valve (7) and one flame arrester (8) are arranged on each gas-phase communication pipeline (1) led out from the gas-phase space of each storage tank, and the oil-gas recovery pipeline (3) is arranged on the oil-gas adsorption and desorption tank (2) and connected with the oil-gas recovery device (4). The problems are well solved, and the method can be applied to gas-phase communication of the storage tanks.
Description
Technical field
The present invention relates to a kind of storage tank gas phase connection method.
Background technology
Storage tank gas phase connection method is the gas-phase space pipeline communication of multiple storage tanks of same oil product together, increase gas-phase space volume, when the gas that any one storage tank is discharged because receiving oil can be while, another storage tank of outer hair oil held, realize not to air or few to airborne release, thus reduce breather loss.
CN200510007223.1 relates to a kind of Separated explosion-proof device for recovering oil and gas of petrol storage tank, and it is separated the mixed oil and gas that normal pressure petrol storage tank is breathed out, and make the oil droplet of condensation be recovered to device in petrol storage tank.Normal pressure petrol storage tank is provided with breather pipe, and breather pipe is connected with breathing valve, is provided with Separated explosion-proof device for recovering oil and gas between breather pipe and breathing valve.In the housing of Separated explosion-proof device for recovering oil and gas, be filled with block blast-proof materials, the upper and lower of block blast-proof materials arranges orifice plate respectively.This device is the special construction and the mechanism that utilize block blast-proof materials, from a large amount of mixed oil and gas that petrol storage tank is breathed out, when by Separated explosion-proof device for recovering oil and gas, become oil droplet in the surface condensation of block blast-proof materials and be recovered in storage tank, reducing the breather loss of petrol storage tank, reducing pollution to environment.Meanwhile, its block blast-proof materials, when running into the contingency such as naked light, electrostatic and causing burning, intercepts the bamboo telegraph of flame, flame can not be entered in petrol storage tank, avoid burning and the blast of oil storage, reaches the object of Separated explosion-proof, safety.
Existing gas phase communication apparatus is directly linked together by the gas-phase space of multiple storage tank with pipeline.The shortcoming of this mode is that flame easily propagates into along vapor delivery line the pipeline that is connected once a storage tank presence of fire, thus causes interlocking accident.
The present invention solves this problem targetedly.
Summary of the invention
Technical matters to be solved by this invention solving breather loss problem while, there is gas phase in prior art fire risk, problem that petroleum vapor recovery efficiency is lower, provides a kind of new storage tank gas phase connection method.The method is used for during storage tank gas phase is communicated with, have can avoid gas phase blast accident, reduce nitrogen consumption, advantage that petroleum vapor recovery efficiency is higher.
For solving the problem, the technical solution used in the present invention is as follows: a kind of storage tank gas phase connection method, the gas-phase space of described storage tank is connected by gas phase communication apparatus, described gas phase communication apparatus comprises gas phase connecting pipeline (1), oil gas absorption and desorption tank (2), petroleum vapor recovery pipeline (3), device for recovering oil and gas (4), control cock (5), quick action emergency valve (7), flame trap (8), gas phase connecting pipeline (1) is drawn from the gas-phase space of each storage tank and to be adsorbed with oil gas and desorption tank (2) is connected, every root gas phase connecting pipeline (1) of drawing from the gas-phase space of each storage tank is equipped with quick action emergency valve (7), flame trap (8), oil gas absorption and desorption tank (2) are provided with petroleum vapor recovery pipeline (3), petroleum vapor recovery pipeline (3) is connected with device for recovering oil and gas (4), wherein, the oil gas absorption of filling in the absorption of described oil gas and desorption tank (2) and desorption material non-combustible, every root gas phase connecting pipeline (1) is stretched in oil gas absorption in oil gas absorption and desorption tank (2) and desorption material.
In technique scheme, preferably, the pipeline that described petroleum vapor recovery pipeline (3) is connected with device for recovering oil and gas (4) is provided with control cock (5).
In technique scheme, preferably, every root gas phase connecting pipeline (1) that the described gas-phase space from each storage tank is drawn is equipped with compression indicator (6).
In technique scheme, preferably, described control cock (5) controls its switch by compression indicator remote transfer signal.
In technique scheme, preferably, be positioned at oil gas absorption and desorption tank (2) gas phase connecting pipeline (1) length and oil gas adsorbs and the diameter ratio of desorption tank (2) is 0.5 ~ 0.9:1, each baffle plate (10) is arranged at below that every root gas phase connecting pipeline (1) exports and parallel with gas phase connecting pipeline (1), the length of baffle plate (10) and oil gas adsorb and the diameter ratio of desorption tank (2) is 0.5 ~ 0.8:1, the distance of the gas phase connecting pipeline (1) that baffle plate (10) and baffle plate (10) top is close to be oil gas adsorb and desorption material packed height 10 ~ 20%.
In technique scheme, preferably, oil gas absorption and desorption material are dewatering silica gel, zeolite molecular sieve or aluminium oxide.
The present invention using oil gas absorption and desorption medium as balance multiple pressure of storage tank medium, avoid storage tank gas phase and be directly communicated with, effectively prevent the generation of gas phase blast accident; Adopt and have the medium of desorption function, the nitrogen amount needing because storage tank upper strata gaseous pressure reduces in the outer process such as defeated of storage tank to pass into can be reduced, reduce nitrogen consumption on the one hand, decrease the generation of excessive gas on the other hand; The method just starting device for recovering oil and gas when oil gas adsorbing medium is saturated effectively can reduce the start-stop time of device for recovering oil and gas, improves efficiency and the life-span of device for recovering oil and gas.The present invention simultaneously adopts the oil gas adsorption/desorption tank of band baffle arrangement design, can effectively avoid flame to be transmitted to other gas phase connecting pipeline by a road gas phase connecting pipeline.The present invention adopts non-flammable oil gas adsorption/desorption material, can stop the propagation of flame in oil gas adsorption/desorption tank, achieve good technique effect.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the method for the invention.
Fig. 2 is the structural representation of oil gas of the present invention absorption and desorption tank.
In Fig. 1,2,1 is gas phase connecting pipeline; 2 is oil gas absorption and desorption tank; 3 is petroleum vapor recovery pipeline; 4 is device for recovering oil and gas; 5 is control cock; 6 my compression indicators; 7 is quick action emergency valve; 8 is flame trap; 9 is storage tank; 10 is baffle plate; 11 is oil gas absorption and desorption material; 12 is petroleum vapor recovery pipeline.
Below by embodiment, the invention will be further elaborated, but be not limited only to the present embodiment.
Detailed description of the invention
[embodiment 1]
A kind of storage tank gas phase connection method as shown in Figure 1, relate to three storage tanks, comprise three gas phase connecting pipelines 1, oil gas absorption and desorption tank 2, petroleum vapor recovery pipeline 3, device for recovering oil and gas 4, control cock 5, compression indicator 6, quick action emergency valve 7, flame trap 8, storage tank 9.
Oil gas absorption and the desorption material of described oil gas absorption and the interior filling of desorption tank 2 are non-combustible, and described oil gas absorption and desorption material 11 are dewatering silica gel, and described baffle plate 10 material is corrosion-resistant steel.Petroleum vapor recovery pipeline is provided with bottom oil gas absorption and desorption tank 2, petroleum vapor recovery pipeline is connected with device for recovering oil and gas, every root gas phase connecting pipeline 1 stretch into oil gas absorption and desorption tank 2 in oil gas absorption and desorption material in, be positioned at oil gas absorption and gas phase connecting pipeline 1 length of desorption tank 2 adsorb with oil gas and the diameter of desorption tank 2 than being 0.8:1, 3 baffle plates 10 are arranged at the below of every root gas phase connecting pipeline 1 outlet and parallel with gas phase connecting pipeline 1, length and the oil gas of baffle plate 10 adsorb and the diameter ratio of desorption tank 2 is 0.5:1, the distance of the gas phase connecting pipeline 1 be close to above baffle plate 10 and baffle plate 10 be oil gas adsorb and desorption material packed height 10%.
When any one in 3 storage tanks 9 cause that amount of evaporation of oil gas raises owing to receiving reason such as oil operation, temperature rising etc., the rising of storage tank upper pressure time, oil gas can along the absorption of gas phase connecting pipeline 1 to oil gas and desorption tank 2, unnecessary oil gas can adsorb by oil gas sorbing material wherein, thus ensure that storage tank 9 can not superpressure, there is no oil and gas leakage yet.
When any one in 3 storage tanks 9 causes storage tank upper pressure to reduce because hair oil operation or temperature reduce, oil gas absorption and desorption tank 2 in oil gas can there is desorption, be supplemented to the storage tank of pressure reduction along gas phase connecting pipeline 1, do not need to mend nitrogen effect like this and can realize storage tank ftercompction operation.
When the sorbing material in oil gas absorption and desorption tank 2 reaches capacity, pressure of storage tank can continue to raise, compression indicator 6 on gas phase connecting pipeline 1 is when reaching certain pressure, the control cock 5 that interlocking is opened on petroleum vapor recovery pipeline 3, and start device for recovering oil and gas 4, the saturated oil gas in sorbing material is carried out desorption process, at desorption to a certain extent, pressure 6 numerical value is when being down to a certain value, interlocking close device for recovering oil and gas 4, and cut off the control cock 5 on petroleum vapor recovery pipeline 3.
When any one presence of fire in 3 storage tanks 9, pressure of storage tank can rise rapidly, when reaching certain setting value of compression indicator 6, and the quick action emergency valve 7 on all storage tanks of interlocking close, thus stop flame to be propagated further.Because gas phase connecting pipeline 1 is provided with flame trap 8, and 3 connected storage tanks are adsorbed by oil gas and desorption tank 2 is connected, and flame can be extinguished by flame trap, or is subject to the obstruction of sorbing material and extinguishes or reduce its propagation speed.
When storage tank upper pressure raises or reduce, oil gas adsorbs at oil gas along gas phase connecting pipeline 1 and flows between desorption tank 2 and storage tank, ensures equilibrium of pressure.
When storage tank presence of fire, after flame is transmitted to adsorption/desorption tank along gas phase communicating pipe pipeline, due to the effect of baffle plate 10, flame directly can not scurry into the gas phase connecting pipeline of other storage tanks, simultaneously because sorbing material 11 is non-combustible, the further propagation of flame can be hindered.
[embodiment 2]
According to the condition described in embodiment 1, a kind of storage tank gas phase connection method, relates to two storage tanks, comprises two gas phase connecting pipelines, 1, two pieces of baffle plates 10.Be positioned at oil gas absorption and gas phase connecting pipeline 1 length of desorption tank 2 adsorb with oil gas and the diameter of desorption tank 2 than being 0.6:1, length and the oil gas of baffle plate 10 adsorb and the diameter of desorption tank 1 than for 0.7:1, the distance of the gas phase connecting pipeline 1 be close to above baffle plate 10 and baffle plate 10 be oil gas adsorb and desorption material 11 packed height 15%.
Described oil gas absorption and desorption material 11 are zeolite molecular sieve, and described baffle plate 10 material is carbon steel, non-combustible.
[embodiment 3]
According to the condition described in embodiment 1, a kind of storage tank gas phase connection method, relates to two storage tanks, comprises two gas phase connecting pipelines, 1, two pieces of baffle plates 10.Be positioned at oil gas absorption and gas phase connecting pipeline 1 length of desorption tank 2 adsorb with oil gas and the diameter of desorption tank 2 than being 0.7:1, length and the oil gas of baffle plate 10 adsorb and the diameter of desorption tank 1 than for 0.8:1, the distance of the gas phase connecting pipeline 1 be close to above baffle plate 10 and baffle plate 10 be oil gas adsorb and desorption material 11 packed height 20%.
Described oil gas absorption and desorption material 11 are aluminium oxide, and described baffle plate 10 material is phenolic plastic, non-combustible.
Claims (6)
1. a storage tank gas phase connection method, the gas-phase space of described storage tank is connected by gas phase communication apparatus, described gas phase communication apparatus comprises gas phase connecting pipeline (1), oil gas absorption and desorption tank (2), petroleum vapor recovery pipeline (3), device for recovering oil and gas (4), control cock (5), quick action emergency valve (7), flame trap (8), gas phase connecting pipeline (1) is drawn from the gas-phase space of each storage tank and to be adsorbed with oil gas and desorption tank (2) is connected, every root gas phase connecting pipeline (1) of drawing from the gas-phase space of each storage tank is equipped with quick action emergency valve (7), flame trap (8), oil gas absorption and desorption tank (2) are provided with petroleum vapor recovery pipeline (3), petroleum vapor recovery pipeline (3) is connected with device for recovering oil and gas (4), wherein, the oil gas absorption of filling in the absorption of described oil gas and desorption tank (2) and desorption material non-combustible, every root gas phase connecting pipeline (1) is stretched in oil gas absorption in oil gas absorption and desorption tank (2) and desorption material.
2. storage tank gas phase connection method according to claim 1, is characterized in that the pipeline that described petroleum vapor recovery pipeline (3) is connected with device for recovering oil and gas (4) is provided with control cock (5).
3. storage tank gas phase connection method according to claim 1, is characterized in that described every root gas phase connecting pipeline (1) of drawing from the gas-phase space of each storage tank is equipped with compression indicator (6).
4. storage tank gas phase connection method according to claim 1, is characterized in that described control cock (5) controls its switch by compression indicator remote transfer signal.
5. storage tank gas phase connection method according to claim 1, it is characterized in that being positioned at gas phase connecting pipeline (1) length of oil gas absorption and desorption tank (2) and oil gas adsorbs and the diameter ratio of desorption tank (2) is 0.5 ~ 0.9:1, each baffle plate (10) is arranged at below that every root gas phase connecting pipeline (1) exports and parallel with gas phase connecting pipeline (1), the length of baffle plate (10) and oil gas adsorb and the diameter ratio of desorption tank (2) is 0.5 ~ 0.8:1, the distance of the gas phase connecting pipeline (1) that baffle plate (10) and baffle plate (10) top is close to be oil gas adsorb and desorption material packed height 10 ~ 20%.
6. storage tank gas phase connection method according to claim 1, is characterized in that oil gas absorption and desorption material are dewatering silica gel, zeolite molecular sieve or aluminium oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510185720.4A CN104875984B (en) | 2015-04-20 | 2015-04-20 | storage tank gas phase connection method |
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| CN201510185720.4A CN104875984B (en) | 2015-04-20 | 2015-04-20 | storage tank gas phase connection method |
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| CN104875984A true CN104875984A (en) | 2015-09-02 |
| CN104875984B CN104875984B (en) | 2017-07-18 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105775462A (en) * | 2016-05-10 | 2016-07-20 | 洛阳瑞泽石化工程有限公司 | Isolating device for preventing series explosions of storage tank tail gas communicating recovery system |
| CN107215586A (en) * | 2016-03-22 | 2017-09-29 | 中国石油化工股份有限公司 | Gas phase connects storage tank explosion-protection equipment |
| CN108114573A (en) * | 2016-11-29 | 2018-06-05 | 中国石油化工股份有限公司 | The collection and purification recovery system and method for a kind of tank area head space gas |
| CN112537555A (en) * | 2019-09-20 | 2021-03-23 | 中国石油化工股份有限公司 | Method for adjusting breathing of storage tank |
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| RU2128614C1 (en) * | 1996-05-24 | 1999-04-10 | Научно-технический центр экологически чистых технологий | Oil product storage system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107215586A (en) * | 2016-03-22 | 2017-09-29 | 中国石油化工股份有限公司 | Gas phase connects storage tank explosion-protection equipment |
| CN105775462A (en) * | 2016-05-10 | 2016-07-20 | 洛阳瑞泽石化工程有限公司 | Isolating device for preventing series explosions of storage tank tail gas communicating recovery system |
| CN108114573A (en) * | 2016-11-29 | 2018-06-05 | 中国石油化工股份有限公司 | The collection and purification recovery system and method for a kind of tank area head space gas |
| CN112537555A (en) * | 2019-09-20 | 2021-03-23 | 中国石油化工股份有限公司 | Method for adjusting breathing of storage tank |
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| CN104875984B (en) | 2017-07-18 |
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Effective date of registration: 20170614 Address after: Yanan City, Shandong province Qingdao City three road 266071 No. 218 Applicant after: Qingdao Safety Engineering Research Institute of Sinopec Co., Ltd. Applicant after: Sinopec Corp. Address before: 100728 Chaoyangmen street, Beijing, No. 22, No. Applicant before: Sinopec Corp. Applicant before: Qingdao Safety Engineering Research Institute of Sinopec Co., Ltd. |
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