CN110203573A - A kind of collection system and method for oil product storage tank volatile organic matter - Google Patents
A kind of collection system and method for oil product storage tank volatile organic matter Download PDFInfo
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- CN110203573A CN110203573A CN201810164885.7A CN201810164885A CN110203573A CN 110203573 A CN110203573 A CN 110203573A CN 201810164885 A CN201810164885 A CN 201810164885A CN 110203573 A CN110203573 A CN 110203573A
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- water seal
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- water
- breather tank
- pipe
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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
- B65D90/30—Recovery of escaped vapours
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- Mechanical Engineering (AREA)
- Treating Waste Gases (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The invention discloses the collection systems and method of a kind of oil product storage tank volatile organic matter.Device is equipped with water seal breather tank and the water seal blowdown vessel (6) below water seal breather tank, and water seal breather tank is arranged two or more.Each water seal breather tank is equipped with air intake duct, expiration and overflow pipe, exhaust pipe, partition, water seal baffle and the disengaging tracheae being connected from different oil product storage tanks, partition and water seal breather tank is divided into the water seal breather tank induction chamber on top and the water seal breather tank expiration room of lower part.Water seal blowdown vessel is equipped with air inlet pipe (80), escape pipe (3) and water seal blowdown vessel water seal baffle (11).The invention discloses the methods for carrying out the collection of oil product storage tank volatile organic matter using above-mentioned apparatus.The present invention can be used for creating or having the construction or reorganization and expansion of oil product storage tank volatile organic matter collection system, effectively collect volatile organic matter.
Description
Technical field
The invention belongs to petrochemical industry oil vapour pollution prevention and control field, in particular to a kind of oil product storage tank volatility
The collection system and method for organic matter.
Background technique
Petroleum and products thereof is the important energy goods and materials in China, is played an important role to the economical operation and development of country.
With industrialization and the quickening of urbanization process, energy consumption is increased, and atmosphere polluting problem also becomes increasingly conspicuous.Petroleum and its
When product volatile organic matter (VOCs) uncontrollable discharge during storage, air environmental pollution is not only resulted in, and
Waste of energy.It realizes the volatile organic matters of multiple oil product storage tanks qualified discharge after collection processing in a organized way, is tank field volatility
The key that organic matter is administered.
A kind of domestic oil product storage tank volatile organic matter collection system, the gas phase of multiple oil product storage tanks pass through company at present
It threads a pipe and (passes in and out tracheae) and enter a general pipeline, then volatile organic compounds recovery or treatment facility progress are entered by general pipeline
Processing.It is equipped with fire arrester on each disengaging tracheae and general pipeline, to avoid oil product storage tank and volatile organic compounds recovery or processing
Volatile organic matter in facility alters fire or tempering.The fire arrester that above system uses, has that easily blocking, resistance is big, throws
The disadvantages of money height, Maintenance Difficulty.It is sent to the occasion that torch burns in the volatile organic matter for escaping oil product storage tank, is also had
Use water sealed tank.Water sealed tank has the characteristics that pressure is easy to control, differential pressure is quick on the draw, and can be effectively prevented volatility has
Machine object alters fire or tempering, but cannot achieve the breathing balance of volatile organic matter between each oil product storage tank.
Summary of the invention
The object of the present invention is to provide the collection systems and method of a kind of oil product storage tank volatile organic matter, existing to solve
With the presence of oil product storage tank volatile organic matter collection system and method the problem of；It can in the case where not using fire arrester
Prevent volatile organic matter from altering fire or tempering, moreover it is possible to realize that the breathing of volatile organic matter between different oil product storage tanks is flat
Weighing apparatus.
To solve the above problems, the technical solution adopted by the present invention is that: a kind of collection of oil product storage tank volatile organic matter
System, the water seal blowdown vessel equipped with water seal breather tank and below water seal breather tank；Water seal blowdown vessel is usually arranged one
A, water seal breather tank is arranged two or more.Each water seal breather tank be equipped with air intake duct, expiration and overflow pipe, exhaust pipe, partition,
Water seal baffle and the disengaging tracheae being connected from different oil product storage tanks.For some water seal breather tank, partition is located at water seal breathing
Water seal breather tank is divided into the water seal breather tank induction chamber on top and the water seal breather tank of lower part is exhaled by the middle part of tank cavity heights
Gas chamber.Water seal baffle is set to water seal breather tank expiration interior, and the two sides of water seal baffle are respectively water seal breather tank expiration room water seal
The non-water seal side in side and water seal breather tank expiration room.The entrance of air intake duct is connected with header, and outlet is located at water seal breather tank induction chamber
The lower section of water seal water level.It exhales and the entrance of overflow pipe is located in water seal breather tank induction chamber water seal water level, export position
In the lower section of water seal breather tank expiration room water seal water level.The entrance of exhaust pipe and water seal breather tank expiration room gas-phase space phase
Logical, outlet is connected with header.
Water seal blowdown vessel is equipped with air inlet pipe, escape pipe and water seal blowdown vessel water seal baffle, water seal blowdown vessel water
One end of the set disengaging tracheae of water seal breather tank is connected with the top of water seal breather tank induction chamber, the other end and oil
The top of product storage tank is connected.The inside of water seal breather tank induction chamber of the present invention, water seal breather tank expiration room and water seal blowdown vessel is empty
Between, remove the part that water seal water and internal part occupy, remainder be respectively water seal breather tank induction chamber gas-phase space,
Water seal breather tank expiration room gas-phase space and water seal blowdown vessel gas-phase space.
In general, each water seal breather tank induction chamber is equipped with water supply pipe, the entrance of water supply pipe is connected with moisturizing general pipeline, and moisturizing is total
Pipe is connected with external water source.The outlet of each water seal breather tank water supply pipe is located under water seal breather tank induction chamber water seal water level
Just, pass through overflow moisturizing between tank between the non-water seal side in each water seal breather tank expiration room and the lower part of water seal blowdown vessel water seal side
Pipe is connected.
Air intake duct is usually made of air intake duct entrance pipeline section, air intake duct horizontal pipe section and air intake duct outlet pipe section.Air intake duct
The straight tube of outlet pipe section, expiration and overflow pipe, water supply pipe and the generally vertical setting of air inlet pipe, outlet are respectively positioned on bottom.Air-breathing
Entrance, that is, air intake duct entrance of tube inlet pipeline section, the outlet of air intake duct outlet pipe section are the outlet of air intake duct, air intake duct outlet
Pipeline section is passed through from the top of water seal breather tank.In these cases, for some water seal breather tank, air intake duct is exported to water
The distance of envelope breather tank induction chamber water seal water level is generally 30~40 millimeters, exhales and the water seal that is exported to of overflow pipe breathes
The distance of tank expiration room water seal water level is generally 50~60 millimeters.For water seal blowdown vessel, air inlet pipe is exported to water seal row
The distance for putting tank water seal water level is generally 60~70 millimeters.Water supply pipe is exported to water seal breather tank induction chamber water seal aqueous
The distance in face is generally 100~200 millimeters, to prevent splash when moisturizing.
The height of each water seal breather tank induction chamber water seal water level is generally equal, the height one of expiration room water seal water level
As it is equal.
Water seal breather tank or water seal blowdown vessel can be horizontal tank, or vertical tank.Water seal breather tank is usually arranged
Two to more than ten, depending on the quantity of oil product storage tank, a water seal breather tank passes through a disengaging tracheae and an oil product
Storage tank is connected.
When air intake duct outlet pipe section, expiration and overflow pipe, water supply pipe and air inlet pipe are vertically disposed straight tube, for
Some water seal breather tank, the length of air intake duct outlet pipe section should be greater than exhaling and the water seal breather tank that is exported to of overflow pipe is exhaled
The distance of room water seal water level, to prevent water from sealing the indoor water of the indoor gas phase force feed water seal breather tank air-breathing of breather tank air-breathing
Water shutoff is emerged from air intake duct to header.Gas phase of the present invention actually refers to volatile organic matter.
The distance for being exported to water seal blowdown vessel water seal water level of air inlet pipe should be greater than any water seal breather tank air intake duct
The distance of water seal breather tank induction chamber water seal water level where being exported to air intake duct.
The distance for being exported to water seal blowdown vessel water seal water level of air inlet pipe and the expiration of a certain water seal breather tank and overflow pipe
Be exported to the expiration and overflow pipe where water seal breather tank expiration room water seal water level sum of the distance, corresponding pressure
It should be less than the maximum operating pressure for the oil product storage tank being connected with the water seal breather tank, to protect the safe operation of oil product storage tank.
The design pressure of water seal breather tank and water seal blowdown vessel is generally 0.7~1MPa, and pressure of the present invention is equal
For gauge pressure.
The outer horizontal of water seal blowdown vessel is equipped with the valve group for adjusting water seal blowdown vessel water seal water liquid level.Valve
The water inlet level of group pipeline is deep into water seal blowdown vessel water seal side, and water outlet level is deep into the non-water seal side of water seal blowdown vessel.
The outside of water seal blowdown vessel is equipped with U-shaped overflow pipe；The entrance of U-shaped overflow pipe and the non-water seal side of water seal blowdown vessel
Lower part is connected, and outlet is connected with drainage system.The top of U-shaped overflow pipe is equipped with vacuum breaker pipe.The water seal height of U-shaped overflow pipe
Generally 1.75~2 times of water-column corresponding to water seal blowdown vessel gas-phase space maximum operating pressure, the height of vacuum breaker pipe
Generally 300~500 millimeters of degree.
The components such as water seal breather tank, water seal blowdown vessel used in the present invention and various pipelines, partition, water seal baffle,
Material is generally carbon steel or stainless steel.The cross-sectional shape of various pipelines is generally circle.
It is using the method that present system carries out the collection of oil product storage tank volatile organic matter: when one or several oil products
When the pressure rise of storage tank gas-phase space, volatile organic matter enters the water being connected with above-mentioned oil product storage tank by passing in and out tracheae
It seals in breather tank induction chamber.It is exhaled when the pressure of above-mentioned water seal breather tank induction chamber gas-phase space is more than that water seal breather tank is respective
Pressure corresponding to the distance for being exported to water seal breather tank expiration room water seal water level of gas and overflow pipe adds water seal breather tank
When the pressure of expiration room gas-phase space, the volatile organic matter in above-mentioned water seal breather tank induction chamber gas-phase space breaks through above-mentioned
Exhale and finder outlet near water seal, to enter by above-mentioned expiration and overflow pipe water seal breather tank expiration room gas phase empty
Between.Then, then the exhaust pipe by communicating with above-mentioned water seal breather tank expiration room gas-phase space enters header.
When the pressure of gas phase in header is more than to be connected with the uninflated oil product storage tank of gas-phase space pressure by passing in and out tracheae
Water seal breather tank air intake duct the distance for being exported to above-mentioned water seal breather tank induction chamber water seal water level corresponding to pressure
In addition (it is, being stored up with the uninflated oil product of gas-phase space pressure when the pressure of above-mentioned water seal breather tank induction chamber gas-phase space
The air intake duct for the water seal breather tank that tank is connected by disengaging tracheae is exported to above-mentioned water seal breather tank induction chamber water seal water level
Distance corresponding to pressure, in addition the pressure of above-mentioned water seal breather tank induction chamber gas-phase space, when the pressure of gas phase in header
When more than the sum of above-mentioned two pressure), the volatile organic matter in header breaks through the water seal, logical of above-mentioned air intake duct near exit
Above-mentioned air intake duct is crossed into above-mentioned water seal breather tank induction chamber gas-phase space, then corresponding gas phase is entered by disengaging tracheae
The uninflated oil product storage tank of space pressure.
In the case where the pressure of all oil product storage tank gas-phase spaces reaches balance, when the pressure of gas phase in header is more than
Pressure corresponding to the distance for being exported to water seal blowdown vessel water seal water level of air inlet pipe is plus water seal blowdown vessel gas-phase space
When pressure, the volatile organic matter in header breaks through the water seal of air inlet pipe near exit, enters water seal blowdown vessel by air inlet pipe
Gas-phase space, then volatile organic compounds recovery or treatment facility are entered by escape pipe.
Using the present invention, with following the utility model has the advantages that by using components such as water seal breather tank, water seal blowdown vessels, originally
Invention can be effectively prevented the generation of the volatile organic matter in oil product storage tank and volatile organic compounds recovery or treatment facility
Alter fire or tempering, moreover it is possible to realize the breathing balance of volatile organic matter between different oil product storage tanks.The present invention does not use back-fire relief
Device, without easily blocking present in fire arrester, resistance is big, invests the disadvantages of height, Maintenance Difficulty；Water seal breather tank used and water seal
The pressure of blowdown vessel is easy to control, differential pressure is quick on the draw.The configuration of the present invention is simple, safe and reliable, operability and practicability
By force, investment is small, can be used for creating or having the construction or reorganization and expansion of oil product storage tank volatile organic matter collection system, effectively
Collect volatile organic matter.
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.Attached drawing and specific implementation
Mode is not intended to limit the scope of protection of present invention.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of the collection system of oil product storage tank volatile organic matter of the invention.
Specific embodiment
The collection system of a kind of oil product storage tank volatile organic matter of the invention shown in Fig. 1 is equipped with the first water seal breather tank
501, the second water seal breather tank 502 and the water seal blowdown vessel 6 below the two water seal breather tanks.First water seal breathing
Tank 501 and the second water seal breather tank 502 are vertical tank, and water seal blowdown vessel 6 is horizontal tank.First water seal breather tank 501 is equipped with the
One air intake duct 701, first exhale and overflow pipe 901, first pass in and out tracheae 101, downtake pipe 801, first partition 401 with
And the first water seal baffle 1101.First partition 401 is located at the middle part of 501 cavity heights of the first water seal breather tank, by the first water seal
501 inner cavity of breather tank is divided into the first water seal breather tank induction chamber on top and the first water seal breather tank expiration room of lower part.First
One end of disengaging tracheae 101 is connected with the top of the first water seal breather tank induction chamber, and the other end and the first oil product storage tank are (in Fig. 1
Be not shown) top be connected.First water seal baffle 1101 is set to the first water seal breather tank expiration interior, the first water seal baffle
1101 two sides are respectively the first water seal breather tank expiration room water seal side and the first non-water seal side 161 in water seal breather tank expiration room.
The entrance of first air intake duct 701 is connected with header 8, and outlet is located under the first water seal breather tank induction chamber water seal water level 141
Side.The entrance of first expiration and overflow pipe 901 is located in the first water seal breather tank induction chamber water seal water level 141, and outlet is located at
The lower section of first water seal breather tank expiration room water seal water level 143.The entrance of downtake pipe 801 and the first water seal breather tank
Expiration room gas-phase space communicates, and outlet is connected with header 8.
Second water seal breather tank 502 is equipped with the expiration of the second air intake duct 702, second and overflow pipe 902, second passes in and out tracheae
102, second exhaust pipe 802, second partition 402 and the second water seal baffle 1102.Second partition 402 is located at the second water seal and exhales
Second water seal breather tank, 502 inner cavity is divided into the second water seal breather tank induction chamber on top by the middle part of 502 cavity heights of cucurbitula
With the second water seal breather tank expiration room of lower part.One end of second disengaging tracheae 102 is upper with the second water seal breather tank induction chamber
Portion is connected, and the other end is connected with the top of the second oil product storage tank (not shown in figure 1).Second water seal baffle 1102 is set to second
Water seal breather tank exhale it is indoor, the two sides of the second water seal baffle 1102 be respectively the second water seal breather tank expiration room water seal side and
The second non-water seal side 162 in water seal breather tank expiration room.The entrance of second air intake duct 702 is connected with header 8, and outlet is located at second
The lower section of water seal breather tank induction chamber water seal water level 142.The entrance of second expiration and overflow pipe 902 is located at the second water seal and exhales
In cucurbitula induction chamber water seal water level 142, outlet is located at the lower section of the second water seal breather tank expiration room water seal water level 144.
The entrance of second exhaust pipe 802 is communicated with the second water seal breather tank expiration room gas-phase space, and outlet is connected with header 8.
Water seal blowdown vessel 6 is equipped with air inlet pipe 80, escape pipe 3 and water seal blowdown vessel water seal baffle 11, water seal blowdown vessel water
The two sides of block plate 11 are respectively water seal blowdown vessel water seal side and the non-water seal side 16 of water seal blowdown vessel.The entrance of air inlet pipe 80 with
Header 8 is connected, and outlet is located at the lower section of water seal blowdown vessel water seal water level 14.The entrance of escape pipe 3 and water seal blowdown vessel 6
Top is connected, and outlet is connected with volatile organic compounds recovery or treatment facility (being not shown in Fig. 1).The outside of water seal blowdown vessel 6
It is horizontally installed with the valve group 12 for adjusting 14 height of water seal blowdown vessel water seal water level.The water inlet of 12 pipeline of valve group is horizontal
It is deep into water seal blowdown vessel water seal side, water outlet level is deep into the non-water seal side 16 of water seal blowdown vessel.Outside water seal blowdown vessel 6
Portion is equipped with U-shaped overflow pipe 13；The entrance of U shape overflow pipe 13 is connected with the lower part of the non-water seal side 16 of water seal blowdown vessel, outlet and row
Water system (being not shown in Fig. 1) is connected.The top of U-shaped overflow pipe 13 is equipped with vacuum breaker pipe 15.
First water seal breather tank induction chamber, the first water seal breather tank expiration room, the second water seal breather tank induction chamber, second
The inner space of water seal breather tank expiration room and water seal blowdown vessel removes the part that water seal water and internal part occupy, remainder
Divide is respectively the first water seal breather tank induction chamber gas-phase space, the first water seal breather tank expiration room gas-phase space, the second water seal
Breather tank induction chamber gas-phase space, the second water seal breather tank expiration room gas-phase space and water seal blowdown vessel gas-phase space.
First water seal breather tank induction chamber is equipped with the first water supply pipe 201, and the second water seal breather tank induction chamber is equipped with second and mends
Water pipe 202.The entrance of first water supply pipe 201 and the second water supply pipe 202 is connected with moisturizing general pipeline 2, moisturizing general pipeline 2 and external water
Source (not shown in figure 1) is connected.The outlet of first water supply pipe 201 and the second water supply pipe 202 is located at the first water seal breather tank
The lower section of induction chamber water seal water level 141 and the second water seal breather tank induction chamber water seal water level 142.First water seal breather tank
The lower part of the non-water seal side 161 in expiration room, the non-water seal side 162 in the second water seal breather tank expiration room and water seal blowdown vessel water seal side
Between be connected by overflow water supply pipe 10 between tank.
First air intake duct 701 is usually by the first air intake duct entrance pipeline section, the first air intake duct horizontal pipe section and the first air intake duct
Outlet pipe section composition, the second air intake duct 702 is usually by the second air intake duct entrance pipeline section, the second air intake duct horizontal pipe section and second
Air intake duct outlet pipe section composition.First air intake duct outlet pipe section, the second air intake duct outlet pipe section, the first expiration and overflow pipe
901, the second expiration and overflow pipe 902, the first water supply pipe 201, the second water supply pipe 202 and the generally vertical setting of air inlet pipe 80
Straight tube, outlet be respectively positioned on bottom.The entrance of the first air intake duct entrance pipeline section i.e. entrance of the first air intake duct 701, the first air-breathing
The outlet of pipe outlet pipe section is the outlet of the first air intake duct；I.e. the second air intake duct 702 of the entrance of second air intake duct entrance pipeline section
Entrance, the outlet of the second air intake duct outlet pipe section are the outlet of the second air intake duct 702.First air intake duct outlet pipe section, second inhale
Tracheae outlet pipe section is passed through from the top of the first water seal breather tank 501 and the second water seal breather tank 502 respectively, first exhale and
Overflow pipe 901 and the second expiration and overflow pipe 902 are passed through from first partition 401 and second partition 402 respectively.
In these cases, the first air intake duct 701 is exported to the first water seal breather tank induction chamber water seal water level 141
Distance a be generally 30~40 millimeters, the second air intake duct 702 is exported to the second water seal breather tank induction chamber water seal water level
142 distance b is generally 30~40 millimeters, and a, b generally take identical numerical value.First exhales and overflow pipe 901 is exported to the
The distance d of one water seal breather tank expiration room water seal water level 143 is generally 50~60 millimeters, and second exhales and overflow pipe 902
The distance e for being exported to the second water seal breather tank expiration room water seal water level 144 is generally 50~60 millimeters, and d, e generally take identical
Numerical value.The distance c for being exported to water seal blowdown vessel water seal water level 14 of air inlet pipe 80 is generally 60~70 millimeters.First mends
The distance for being exported to the first water seal breather tank induction chamber water seal water level 141 of water pipe 201, the second water supply pipe 202 are exported to
The distance of second water seal breather tank induction chamber water seal water level 142 is generally 100~200 millimeters, to prevent spray when moisturizing
It splashes.
The water seal height f of U-shaped overflow pipe 13 is generally corresponding to 6 gas-phase space maximum operating pressure of water seal blowdown vessel
The height g of 1.75~2 times of water-column, vacuum breaker pipe 15 is generally 300~500 millimeters.
When the temperature of the surroundings is low, outside the first water seal breather tank 501, the second water seal breather tank 502 and water seal blowdown vessel 6
The settable heat tracing frost protection (not shown in figure 1) in portion.First water seal breather tank 501, the second water seal breather tank 502 and water
It seals blowdown vessel 6 and is equipped with liquidometer and thermometer, on the disengaging tracheae outside each water seal breather tank, outside water seal blowdown vessel 6
Thermometer and pressure gauge (not shown in figure 1) are equipped on escape pipe 3.May be used also on each water seal breather tank and water seal blowdown vessel 6
Access hole and thief hatch is arranged.
When water seal breather tank is more than two, each water seal breather tank passes through disengaging tracheae and is connected with respective oil product storage tank,
And it is arranged between moisturizing general pipeline, water supply pipe and tank according to the similar mode of the system that two water seal breather tanks are arranged shown in Fig. 1 and overflows
Flow water supply pipe.Remaining unaccounted system structure and operation, with the basic phase of system that two water seal breather tanks are arranged shown in Fig. 1
Together.
Explanation carries out the method that oil product storage tank volatile organic matter of the present invention is collected using system shown in Figure 1 below.When
When the pressure rise of two oil product storage tank gas-phase spaces (pressure of the first oil product storage tank gas-phase space does not increase), volatility is organic
Object is entered in the second water seal breather tank induction chamber by the second disengaging tracheae 102.When the second water seal breather tank induction chamber gas phase is empty
Between pressure be more than second exhale and overflow pipe 902 be exported to the second water seal breather tank expiration room water seal water level 144 away from
When adding the pressure of the second water seal breather tank expiration room gas-phase space from pressure corresponding to e, the second water seal breather tank induction chamber
Volatile organic matter in gas-phase space break through 902 near exit of the second expiration and overflow pipe water seal, by second exhale and
Overflow pipe 902 enter the second water seal breather tank expiration room gas-phase space (above-mentioned volatile organic matter from second exhale and overflow
The entrance of pipe 902 enters the second expiration and overflow pipe 902, exhales from second and the outlet of overflow pipe 902 is flowed out).Then, then
Enter header 8 by second exhaust pipe 802.
When the pressure of gas phase in header 8 is more than that the first air intake duct 701 is exported to the first water seal breather tank induction chamber water seal
When pressure corresponding to the distance a of water level 141 adds the pressure of the first water seal breather tank induction chamber gas-phase space, in header 8
Volatile organic matter break through 701 near exit of the first air intake duct water seal, by the first air intake duct 701 enter the first water seal
Breather tank induction chamber gas-phase space, then into the first oil product storage tank, (above-mentioned volatility is organic by the first disengaging tracheae 101
Object enters the first air intake duct 701 from the entrance of the first air intake duct 701, flows out from the outlet of the first air intake duct 701).
In the case where the pressure of the second oil product storage tank and the first oil product storage tank gas-phase space reaches balance, when in header 8
The pressure of gas phase is not up to pressure corresponding to the distance c for being exported to water seal blowdown vessel water seal water level 14 of air inlet pipe 80 and adds
When the pressure of upper water seal blowdown vessel gas-phase space, volatile organic matter stops in header 8.When the pressure of gas phase in header 8 is super
Pressure corresponding to the distance c for being exported to water seal blowdown vessel water seal water level 14 of air inlet pipe 80 is crossed plus water seal blowdown vessel gas
When the pressure of phase space, the volatile organic matter in header 8 breaks through the water seal of 80 near exit of air inlet pipe, by air inlet pipe 80
Into water seal blowdown vessel gas-phase space, (above-mentioned volatile organic matter enters air inlet pipe 80 from the entrance of air inlet pipe 80, from air inlet
Flow out the outlet of pipe 80), then volatile organic compounds recovery or treatment facility are entered by escape pipe 3.
Volatility in the first oil product storage tank, the second oil product storage tank and volatile organic compounds recovery or treatment facility
When organic matter alters fire or tempering, the first water seal breather tank 501 of the invention, the second water seal breather tank 502 and water seal row
It puts tank 6 and is able to carry out blocking.
The present invention in the course of work, by moisturizing general pipeline 2, the first water supply pipe 201 and the second water supply pipe 202 respectively to
First water seal breather tank induction chamber and the second water seal breather tank induction chamber input water seal water.When the first water seal breather tank induction chamber
After water seal water level 141 reaches setting height (overhead height of the i.e. first expiration and overflow pipe 901), the first water is gone successively to
The indoor water seal water of breather tank air-breathing is sealed to breathe from the first expiration and the top entry overflow of overflow pipe 901 into the first water seal
Tank expiration room water seal side.When the first water seal breather tank expiration room water seal water level 143 reaches setting height (i.e. the first water seal gear
The overhead height of plate 1101) after, the water seal water of the first water seal breather tank expiration room water seal side is gone successively to from the first water seal baffle
1101 top overflow enters the first non-water seal side 161 in water seal breather tank expiration room.When the second water seal breather tank induction chamber water seal
After water level 142 reaches setting height (overhead height of the i.e. second expiration and overflow pipe 902), goes successively to the second water seal and exhale
The indoor water seal water of cucurbitula air-breathing is exhaled from second and the top entry overflow of overflow pipe 902 enters the second water seal breather tank and exhales
Gas chamber water seal side.When the second water seal breather tank expiration room water seal water level 144 reaches setting height (i.e. the second water seal baffle
1102 overhead height) after, the water seal water of the second water seal breather tank expiration room water seal side is gone successively to from the second water seal baffle
1102 top overflow enters the second non-water seal side 162 in water seal breather tank expiration room.
In the non-water seal side 161 in first water seal breather tank expiration room and the second non-water seal side 162 in water seal breather tank expiration room
Overflow water supply pipe 10 enters water seal blowdown vessel water seal side between water seal water passes through tank.When water seal blowdown vessel water seal water level 14 reaches
After setting height, the water seal water of water seal blowdown vessel water seal side is gone successively to from valve group 12 or from water seal blowdown vessel water seal baffle 11
Top enter the non-water seal side 16 of water seal blowdown vessel, then drainage system is entered by U-shaped overflow pipe 13.The above process realizes
Water seal water is inputted into each tank and forms the first water seal breather tank induction chamber water seal, the first water seal breather tank expiration room water seal, the
Two water seal breather tank induction chamber water seals, the second water seal breather tank expiration room water seal and water seal blowdown vessel water seal, and realize pair
The maintenance of water seal water liquid level everywhere.In Fig. 1, the arrow for not infusing appended drawing reference respectively indicates volatile organic matter and water
Flow direction.
The temperature of water seal water is generally in first water seal breather tank 501, the second water seal breather tank 502 and water seal blowdown vessel 6
8~25 DEG C, the temperature of volatile organic matter is generally 15~40 DEG C.
When the pressure of the pressure rise of the first oil product storage tank gas-phase space, the second oil product storage tank gas-phase space does not increase,
Either oil product storage tank is more than two, water seal breather tank of the present invention setting more than two, some or multiple oil product storage tank gas
When the pressure rise of phase space, present system, which is pressed, carries out various operations with the similar principle of the above process, be described in detail from
Slightly.
Claims (7)
1. a kind of collection system of oil product storage tank volatile organic matter, it is characterised in that: it is equipped with water seal breather tank and is located at
Water seal blowdown vessel (6) below water seal breather tank, water seal breather tank are arranged two or more, and each water seal breather tank is equipped with air-breathing
Pipe, expiration and overflow pipe, exhaust pipe, partition, water seal baffle and the disengaging tracheae being connected from different oil product storage tanks, for some
Water seal breather tank is divided into the water seal breather tank induction chamber on top and the water seal breather tank expiration of lower part by water seal breather tank, partition
Room, water seal baffle are set to water seal breather tank expiration interior, and the two sides of water seal baffle are respectively water seal breather tank expiration room water seal side
With the non-water seal side in water seal breather tank expiration room, the entrance of air intake duct is connected with header (8), and outlet is located at water seal breather tank induction chamber
The lower section of water seal water level, exhales and the entrance of overflow pipe is located in water seal breather tank induction chamber water seal water level, and outlet is located at
The entrance of the lower section of water seal breather tank expiration room water seal water level, exhaust pipe is communicated with water seal breather tank expiration room gas-phase space,
Outlet is connected with header (8)；
Water seal blowdown vessel (6) is equipped with air inlet pipe (80), escape pipe (3) and water seal blowdown vessel water seal baffle (11), water seal discharge
The two sides of tank water seal baffle (11) are respectively water seal blowdown vessel water seal side and the non-water seal side (16) of water seal blowdown vessel, air inlet pipe (80)
Entrance be connected with header (8), outlet be located at water seal blowdown vessel water seal water level (14) lower section.
2. system according to claim 1, it is characterised in that: each water seal breather tank induction chamber is equipped with water supply pipe, water supply pipe
Entrance be connected with moisturizing general pipeline (2), the lower part of the non-water seal side in each water seal breather tank expiration room and water seal blowdown vessel water seal side
Between be connected by overflow water supply pipe (10) between tank.
3. system according to claim 1 or 2, it is characterised in that: air intake duct outlet pipe section, expiration and overflow pipe, moisturizing
Pipe and air inlet pipe (80) are vertically disposed straight tube, and for some water seal breather tank, air intake duct is exported to the suction of water seal breather tank
The distance of gas chamber water seal water level is 30~40 millimeters, exhales and overflow pipe is exported to water seal breather tank expiration room water seal aqueous
The distance in face is 50~60 millimeters, and for water seal blowdown vessel (6), air inlet pipe (80) is exported to water seal blowdown vessel water seal water level
(14) distance is 60~70 millimeters.
4. system according to claim 1 or 2, it is characterised in that: water seal breather tank or water seal blowdown vessel (6) can be sleeping
Formula tank, or vertical tank.
5. system according to claim 1 or 2, it is characterised in that: the outside of water seal blowdown vessel (6) is equipped with U-shaped overflow pipe
(13), the entrance of U-shaped overflow pipe (13) is connected with the lower part of the water seal blowdown vessel of the non-water seal side of water seal blowdown vessel, outlet and draining
System is connected, and the top of U-shaped overflow pipe (13) is equipped with vacuum breaker pipe (15).
6. the method for carrying out the collection of oil product storage tank volatile organic matter using system described in claim 1, it is characterised in that: when one
When the pressure rise of a or several oil product storage tank gas-phase spaces, volatile organic matter, which enters, passes through disengaging gas with above-mentioned oil product storage tank
In the connected water seal breather tank induction chamber of pipe, when the pressure of above-mentioned water seal breather tank induction chamber gas-phase space is more than water seal breather tank
Pressure corresponding to the distance for being exported to water seal breather tank expiration room water seal water level of respective expiration and overflow pipe adds water
Volatile organic matter punching when sealing the pressure of breather tank expiration room gas-phase space, in above-mentioned water seal breather tank induction chamber gas-phase space
It breaks the water seal near above-mentioned expiration and finder outlet, enter water seal breather tank expiration room gas by above-mentioned expiration and overflow pipe
Then phase space enters header (8) by the exhaust pipe communicated with above-mentioned water seal breather tank expiration room gas-phase space again；
When the pressure of header (8) interior gas phase is more than to be connected with the uninflated oil product storage tank of gas-phase space pressure by passing in and out tracheae
Pressure corresponding to the distance for being exported to above-mentioned water seal breather tank induction chamber water seal water level of the air intake duct of water seal breather tank adds
When the pressure of upper above-mentioned water seal breather tank induction chamber gas-phase space, the volatile organic matter in header (8) breaks through above-mentioned air intake duct
The water seal of near exit is entered above-mentioned water seal breather tank induction chamber gas-phase space by above-mentioned air intake duct, then passes through disengaging gas
Pipe enters the corresponding uninflated oil product storage tank of gas-phase space pressure.
7. according to the method described in claim 6, it is characterized by: the pressure in all oil product storage tank gas-phase spaces reaches balance
In the case where, when the pressure of header (8) interior gas phase is exported to water seal blowdown vessel water seal water level (14) more than air inlet pipe (80)
Distance corresponding to pressure when adding the pressure of water seal blowdown vessel (6) gas-phase space, the volatile organic matter punching in header (8)
The water seal of broken air inlet pipe (80) near exit enters water seal blowdown vessel gas-phase space by air inlet pipe 80, then by escape pipe 3 into
Enter volatile organic compounds recovery or treatment facility.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810164885.7A CN110203573B (en) | 2018-02-28 | 2018-02-28 | Method for collecting volatile organic compounds of oil product storage tank |
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| CN201810164885.7A CN110203573B (en) | 2018-02-28 | 2018-02-28 | Method for collecting volatile organic compounds of oil product storage tank |
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| CN110203573B CN110203573B (en) | 2020-09-08 |
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|---|---|
| CN110203573B (en) | 2020-09-08 |
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