CN203959056U - A kind of storage tank tidal air collection and purification system - Google Patents
A kind of storage tank tidal air collection and purification system Download PDFInfo
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- CN203959056U CN203959056U CN201420434550.XU CN201420434550U CN203959056U CN 203959056 U CN203959056 U CN 203959056U CN 201420434550 U CN201420434550 U CN 201420434550U CN 203959056 U CN203959056 U CN 203959056U
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- storage tank
- tidal air
- airduct
- collection
- purification
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Abstract
The utility model discloses a kind of storage tank tidal air collection and purification system, belong to storage tank tidal air recovery technology field.Storage tank of the present utility model top is provided with inlet point, seal cover cap and evacuation port, the arm of collecting pipe network is communicated with evacuation port, main pipe carries airduct to be communicated with power, power carries airduct to be communicated with purification mechanism by blower fan, power is carried on airduct and is provided with control cock and compression indicator, collection and purification process of the present utility model is: when storage tank produces large tidal air, ensure that compression indicator registration maintains negative value, large tidal air enters collection pipe network, is delivered to independent setting or the existing purification mechanism of on-site through blower fan; When storage tank produces little tidal air, turn control valve opening down, ensure that compression indicator registration maintains negative value, repeat collection, the purification run same with calling out inspiratory phase.That the large and small tidal air that in the utility model, multiple storage tanks produce all can obtain is unified, collect completely, and all can obtain effective purifying treatment, builds, operating cost is low, easy to utilize.
Description
Technical field
The utility model relates to storage tank tidal air recovery technology field, more particularly, relates to a kind of storage tank tidal air collection and purification system.
Background technology
In chemical process, have large quantity of exhaust gas to produce, waste gas can be divided into waste gas and inorganization waste gas in a organized way by discharging modes.Inorganization waste gas is mainly derived from the leakage of tank field, warehouse, sewage treatment station and reactor etc., is difficult to collection and purification, and plant area and ambient environment are easily polluted.
Wherein, store the storage tank inorganization waste gas that a large amount of concentration of meeting generation is higher in dress discharge process or the large tidal air of the volatile organic chemical products such as the inorganic chemical product such as nitric acid, hydrochloric acid and alkanes, aromatic hydrocarbons, ester class, aldehydes; And in storage process because the variation such as ambient temperature, air pressure also can produce inorganization waste gas or the little tidal air that a large amount of concentration is lower.Above-mentioned situation also produces pollution to a certain degree to environment in causing the loss of storage tank internal solvent.The collection and purification problem of storage tank tidal air is a difficult problem always.
At present, mainly slow down large tidal air from material conveying process and end treatment aspect for the control of storage tank tidal air, prevent and treat little tidal air from aspects such as storage tank type selecting, reduction temperature and media protections.The measure of considering from material conveying process is to adopt double hose convey materials, storage tank arranges two pipelines and is connected with tank car, article one, be the material conveying pipe of tank car to storage tank, another is the barometric pipe that tank top arrives tank car, large tidal air is transferred to tank car by storage tank, bring to off-site by tank car, but this kind of mode is only a kind of mitigation strategy, do not tackle the problem at its root.
To adopt exit skirt or bucket type gas skirt to collect tidal air from the viewpoint of the measure of end treatment; after collecting, adopt again the methods such as water absorption, charcoal absorption to purify; the patent that is 200820012769.5 as number of patent application discloses a kind of flexible exhaust-suction bin; flexible exhaust-suction bin bottom is fixing seal structure; fixing seal structure top arranges sealing soft material airbag; airbag outside arranges mat; while being full of gas, airbag is adjacent at mat inwall, and mat and bottom fixing seal structure are connected to one.Airbag volume changes in a big way, and pressure required when volume-variation is little, during for tank area, can effectively reduce exhaust emission and reduce protection gas consumption simultaneously.But due to gas skirt size, the problem such as lay, be difficult to guarantee that a large amount of inorganization waste gas that produce are effectively collected in material handling process, and use inconvenient.Though use blower fan and clean-up device can effectively collect Big and Small Breath gas, separately blower fan is set and clean-up device is wasted one's talent on a petty job, infeasible economically.From the viewpoint of storage tank type selecting, reduction temperature and media protection, also can only slow down the discharge of little breathing, do not take control measures, and adopt water spray process reduction temperature can cause the wasting of resources and kinetic equation loss.
Collect problem about storage tank tidal air, through retrieval, Chinese Patent Application No. 201310526098.X, the applying date is on October 30th, 2013, invention and created name is: petrol storage tank tidal air recovery system, this application case comprises tidal air collection system and tidal air recovery control system, and tidal air collection system and tidal air recovery control system are by pipeline communication and form the circulation of oil gas pipeline; Tidal air collection system comprises that the petrol storage tank, the tidal air that are connected successively by pipeline reclaim special service valve, liquid collecting tank and blower fan; The tidal air absorption system that tidal air recovery control system arranges, comprises the adsorption tower, vacuum pump, absorption tower and the dump pump that are communicated with successively by pipeline; The tidal air condenser system that tidal air recovery control system arranges, comprises the adsorption tower, vacuum pump, condenser, disconnector, the holding vessel that are communicated with successively by pipeline, and condenser is connected with refrigerating unit.This application case can be carried out safe collection recovery, environmental protection by the petrol storage tank tidal air of uncontrollable discharge; But the tidal air recovery system of this application case need be higher in the special construction of on-site and laid down cost, and application flexibility is also poor, in addition, this application case is also desirable not to the utmost to the collecting effect of little tidal air.
Utility model content
1. the technical matters that utility model will solve
The purpose of this utility model is to overcome the large and small tidal air collection and purification weak effect in prior art, storage tank being produced, the deficiency that cost is high, a kind of storage tank tidal air collection and purification system is provided, the unified collection of tidal air that the utility model produces multiple storage tanks by collecting pipe network, the large and small tidal air that storage tank produces all can be collected completely, and all can obtain effective purifying treatment, system building, operating cost are low, easy to utilize.
2. technical scheme
For achieving the above object, the technical scheme that the utility model provides is:
A kind of storage tank tidal air collection and purification system of the present utility model, comprise storage tank, collection pipe network, power conveying airduct, control cock, compression indicator, blower fan and purification mechanism, described storage tank top is provided with inlet point, seal cover cap and evacuation port, described collection pipe network comprises main pipe and arm, arm is communicated with evacuation port, main pipe carries airduct to be communicated with power, and described power carries the caliber of airduct to be greater than main pipe caliber; Power carries airduct to be communicated with purification mechanism by blower fan, and power is carried on airduct and is provided with control cock and compression indicator.
Further, the first-class arm point of connection that is arranged at intervals with of described main pipe, on main pipe, each arm point of connection is connected with 2 arms, and 2 arms are taking main pipe as rotational symmetry setting.
Further, described blower fan is frequency conversion corrosive resistant fan.
Further, described purification mechanism comprises one or more in condenser, absorption tower, bacteria bed, active carbon adsorber, low temperature plasma equipment, photo catalysis reactor, incinerator, torch.
Further, described blower fan, purification mechanism arrange separately or utilize on-site existing apparatus.
A kind of storage tank tidal air method for collecting and purifying of the present utility model, the steps include:
Step 1, material are from tank car in the inlet point input storage tank of storage tank, and it is airtight that seal cover cap keeps, and storage tank produces large tidal air;
Step 2, tune up control valve opening, compression indicator registration is 1 o'clock, and blower fan frequency increases automatically, ensures that compression indicator registration maintains negative value, and the large tidal air that storage tank produces enters the main pipe of collecting pipe network through arm;
Step 3, large tidal air after step 2 is collected enter power and carry airduct, then are delivered to independent setting or the existing purification mechanism of on-site purifies, recycles through blower fan;
After step 4, mass transport, close inlet point, it is airtight that seal cover cap keeps, and due to external environment factor, storage tank produces little tidal air;
Step 5, turn control valve opening down, compression indicator registration is 1 o'clock, and blower fan frequency increases automatically, ensures that compression indicator registration maintains negative value, repeat and call out inspiratory phase with collection, purification run.
Further, described purification mechanism comprises one or more in condenser, absorption tower, bacteria bed, active carbon adsorber, low temperature plasma equipment, photo catalysis reactor, incinerator, torch.
3. beneficial effect
The technical scheme that adopts the utility model to provide, compared with existing known technology, has following remarkable result:
(1) a kind of storage tank tidal air collection and purification system of the present utility model, the unified collection of tidal air multiple storage tanks being produced by collecting pipe network, collecting pipe network is directly communicated with storage tank evacuation port, tidal air generation total amount significantly reduces compared with gas skirt, kinetic equation loss is little, collects pipe network storage tank is communicated with plant area existing purification mechanism by laying, and purification mechanism just need be set separately in the situation that minority is utilized existing resource inconvenience, system building, operating cost are low, save cost of investment;
(2) a kind of storage tank tidal air method for collecting and purifying of the present utility model, regulate control valve opening according to actual conditions, the control of blower fan automatic frequency-conversion, make compression indicator show all the time negative value, can ensure that the large and small tidal air that storage tank produces all can be collected completely, guarantee that waste gas is effectively addressed, simple to operate, reduced environmental pollution.
Brief description of the drawings
Fig. 1 is the structural representation of storage tank tidal air collection and purification system in the utility model.
Label declaration in schematic diagram:
1, storage tank; 11, inlet point; 12, seal cover cap; 13, evacuation port; 2, collect pipe network; 3, power is carried airduct; 4, control cock; 5, compression indicator; 6, blower fan; 7, purification mechanism.
Detailed description of the invention
For further understanding content of the present utility model, in conjunction with the accompanying drawings and embodiments the utility model is described in detail.
Embodiment 1
In conjunction with Fig. 1, a kind of storage tank tidal air collection and purification system of the present embodiment, the tidal air producing mainly for the treatment of the storage tank of storage nitric acid.System comprises storage tank 1, collection pipe network 2, power conveying airduct 3, control cock 4, compression indicator 5, blower fan 6 and purification mechanism 7.Described storage tank top is provided with inlet point 11, seal cover cap 12 and evacuation port 13.Described collection pipe network 2 comprises main pipe and arm, the first-class arm point of connection that is arranged at intervals with of main pipe, and each arm point of connection is connected with 2 arms, and 2 arms are taking main pipe as rotational symmetry setting.Arm is withstanding corrosion flexible pipe, is communicated with the evacuation port 13 of storage tank 1, and between arm and evacuation port 13, leak tightness is strong and easy to connect, and main pipe carries airduct 3 to be communicated with power.The present embodiment connects multiple storage tanks 1 by collecting pipe network 2, and unified collection of tidal air of realizing multiple storage tanks 1 is practical.
The present embodiment medium power carries airduct 3 to adopt the mode of large pipe box tubule to be connected with main pipe, and power carries the caliber of airduct 3 to be greater than main pipe caliber, so that wild wind fills into.Power carries airduct 3 to be communicated with purification mechanism 7 by blower fan 6, and blower fan 6 utilizes the existing frequency conversion corrosive resistant fan of on-site.Power carries the front end of airduct 3 to be provided with control cock 4 and compression indicator 5.Described purification mechanism 7 comprises one or more in condenser, absorption tower, bacteria bed, active carbon adsorber, low temperature plasma equipment, photo catalysis reactor, incinerator, torch, the selection of purification mechanism 7 determines according to actual conditions, can arrange separately or utilize on-site existing apparatus.In the present embodiment, purification mechanism 7 utilizes the existing one-level alkali of on-site absorption tower.
Storage tank tidal air method for collecting and purifying to the present embodiment below, is specifically described:
Nitric acid is inputted in storage tank 1 through the inlet point 11 of storage tank 1 from tank car, and seal cover cap 12 keeps airtight, and storage tank 1 produces and contains high concentration HNO
3large tidal air, enter and collect the main pipe of pipe network 2 through arm.Tune up control cock 4 apertures, in the time that compression indicator 5 registrations are zero, corrosive resistant fan 6 frequencies increase automatically, guarantee that compression indicator 5 registrations are negative value, containing HNO
3large tidal air enter power and carry airduct 3 by collecting pipe network 2, be delivered to the relevant existing one-level alkali of workshop section absorption tower, plant area workshop, the HNO in large tidal air through blower fan 6
3react with the NaOH in the spray liquid of absorption tower and generate free of contamination NaNO
3and H
2o, tail gas after treatment detects rear discharge up to standard.Nitric acid is closed inlet point 11 after carrying, and seal cover cap 12 keeps airtight, and due to external environment factor, storage tank 1 produces little tidal air, enters the main pipe of collecting pipe network 2 through arm.Turn control cock 4 apertures down, compression indicator 5 registrations are 1 o'clock, and blower fan 6 frequencies increase automatically, ensure that compression indicator 5 registrations maintain negative value, repeat collection, the purification run same with calling out inspiratory phase.
Embodiment 2
A kind of storage tank tidal air collection and purification system of the present embodiment, substantially with embodiment 1, be mainly used in collection and purification hold toluene, ethanol, acetone and formaldehyde storage tank produce tidal air, detailed process is as follows:
Store toluene, ethanol, the storage tank 1 of acetone and formaldehyde, inlet point 11 and seal cover cap 12 keep closing, due to ambient temperature, the variation of the conditions such as air pressure, storage tank 1 can produce and contain toluene, ethanol, the little tidal air of acetone and formaldehyde, enter and collect pipe network 2 through evacuation port 13, turn control cock 4 apertures down, in the time that compression indicator 5 registrations are zero, corrosive resistant fan 6 frequencies increase automatically, guarantee that compression indicator 5 registrations are negative value, contain toluene, ethanol, the little tidal air of acetone and formaldehyde enters power conveying airduct 3 completely by collecting pipe network 2, be delivered to the secondary active carbon adsorber of the existing waste gas of plant area through blower fan 6, after charcoal absorption is saturated, can resolve and be delivered to boiler or burn and generate CO as solid waste
2and H
2o, if the each storage tank 1 in tank field only stores a kind of volatile organic matter, also can recycle it, thereby economize on resources, and reduces and pollute.
Embodiment 3
A kind of storage tank tidal air collection and purification system of the present embodiment, substantially with embodiment 1, is mainly used in collection and purification and stores the tidal air that the storage tank 1 of hydrochloric acid and methylene chloride produces, and detailed process is as follows:
Store the storage tank 1 of hydrochloric acid and methylene chloride, inlet point 11 and seal cover cap 12 keep closing, due to ambient temperature, the variation of the conditions such as air pressure, storage tank 1 can produce the little tidal air that contains hydrogen chloride and methylene chloride, enter and collect pipe network 2 through evacuation port 13, turn control cock 4 apertures down, in the time that compression indicator 5 registrations are zero, corrosive resistant fan 6 frequencies increase automatically, guarantee that compression indicator 5 registrations are negative value, the little tidal air that contains hydrogen chloride and methylene chloride enters power conveying airduct 3 completely by collecting pipe network 2, be delivered to plant area's existing " charcoal absorption of one-level alkali spray+one-level " system through blower fan 6, sodium hydroxide in chlorination Hydrogen Energy in mix waste gas and one-level alkali spray alkali lye reacts and generates free of contamination sodium chloride and water is removed, the active carbon adsorber that not removed methylene chloride tail gas enters rear one-level carries out adsorbing and removing, emptying after purifying.
What deserves to be explained is, storage tank tidal air described in the utility model comprises the little tidal air producing in large tidal air that dress produces in discharge process and storage process, mainly comprises one or more compounds of the volatile mineral compound such as nitric acid, hydrochloric acid and alkanes, aromatic hydrocarbons, ester class, aldehydes and other class volatile organic compound.Described purification mechanism 7 is also not limited to absorption tower, the active carbon adsorber described in embodiment 1～3, purification mechanism 7 utilizes plant area's existing resource in the ordinary course of things, while utilizing existing resource inconvenience, just arrange separately, in view of length is limit, do not repeating for example one by one at this.
A kind of storage tank tidal air collection and purification system described in embodiment 1～3, tidal air produces total amount and significantly reduces compared with gas skirt, and kinetic equation loss is little, builds, operating cost is low, saves cost of investment; Can ensure that the large and small tidal air that storage tank produces all can be collected completely, guarantee that waste gas is effectively addressed, simple to operate, reduced environmental pollution.
Below schematically the utility model and embodiment thereof are described, this description does not have restricted, and shown in accompanying drawing is also one of embodiment of the present utility model, and actual structure is not limited to this.So, if those of ordinary skill in the art is enlightened by it, in the situation that not departing from the utility model creation aim, without the creationary frame mode similar to this technical scheme and the embodiment of designing, all should belong to protection domain of the present utility model.
Claims (5)
1. a storage tank tidal air collection and purification system, it is characterized in that: comprise storage tank (1), collect pipe network (2), power is carried airduct (3), control cock (4), compression indicator (5), blower fan (6) and purification mechanism (7), described storage tank top is provided with inlet point (11), seal cover cap (12) and evacuation port (13), described collection pipe network (2) comprises main pipe and arm, arm is communicated with evacuation port (13), main pipe carries airduct (3) to be communicated with power, described power carries the caliber of airduct (3) to be greater than main pipe caliber, power carries airduct (3) to be communicated with purification mechanism (7) by blower fan (6), and power is carried on airduct (3) and is provided with control cock (4) and compression indicator (5).
2. a kind of storage tank tidal air collection and purification system according to claim 1, it is characterized in that: the first-class arm point of connection that is arranged at intervals with of described main pipe, on main pipe, each arm point of connection is connected with 2 arms, and 2 arms are taking main pipe as rotational symmetry setting.
3. a kind of storage tank tidal air collection and purification system according to claim 2, is characterized in that: described blower fan (6) is frequency conversion corrosive resistant fan.
4. according to a kind of storage tank tidal air collection and purification system described in claim 2 or 3, it is characterized in that: described purification mechanism (7) comprises one or more in condenser, absorption tower, bacteria bed, active carbon adsorber, low temperature plasma equipment, photo catalysis reactor, incinerator, torch.
5. a kind of storage tank tidal air collection and purification system according to claim 4, is characterized in that: described blower fan (6), purification mechanism (7) arrange separately or utilize on-site existing apparatus.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420434550.XU CN203959056U (en) | 2014-08-01 | 2014-08-01 | A kind of storage tank tidal air collection and purification system |
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| CN201420434550.XU CN203959056U (en) | 2014-08-01 | 2014-08-01 | A kind of storage tank tidal air collection and purification system |
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| CN203959056U true CN203959056U (en) | 2014-11-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104139938A (en) * | 2014-08-01 | 2014-11-12 | 南京大学盐城环保技术与工程研究院 | Storage tank respiratory air collecting and purifying system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104139938A (en) * | 2014-08-01 | 2014-11-12 | 南京大学盐城环保技术与工程研究院 | Storage tank respiratory air collecting and purifying system and method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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