CN204056865U - A kind of full regenerative apparatus of breathing emission gases of nitrogen-sealed storage tank - Google Patents
A kind of full regenerative apparatus of breathing emission gases of nitrogen-sealed storage tank Download PDFInfo
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- CN204056865U CN204056865U CN201420379568.4U CN201420379568U CN204056865U CN 204056865 U CN204056865 U CN 204056865U CN 201420379568 U CN201420379568 U CN 201420379568U CN 204056865 U CN204056865 U CN 204056865U
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Abstract
The utility model discloses a kind of full regenerative apparatus of breathing emission gases of nitrogen-sealed storage tank, this device comprises suction fan, nitrogen purification clean unit, nitrogen supercharging storage element and volatile matter recovery unit, the gas access end of described suction fan is communicated with raw material storage tank by the threeway be arranged between raw material storage tank with breathing valve, described nitrogen purification clean unit comprises at least one absorption canister, the gas access end of described absorption canister is communicated with the gas outlet end of described suction fan by valve, described nitrogen supercharging storage element comprises nitrogen compressor, the gas access end of described nitrogen compressor is connected by the gas outlet end of valve with described absorption canister, the gas access end of described absorption canister is also communicated with the arrival end of described volatile matter recovery unit successively with vacuum pump by valve.This device will reduce the frequency of utilization of nitrogen making machine and air compressor, energy efficient greatly.The former VOC directly entering air is carried out recycling simultaneously, greatly reduce environmental pollution.
Description
Technical field
The utility model relates to a kind of full regenerative apparatus of breathing emission gases of nitrogen-sealed storage tank, and this device can reclaim the VOC and nitrogen that storage tank internal respiration gives off simultaneously.To in storage tank during charging, because of the reduction of gas-phase space, storage tank discharges nitrogen and volatile matter (because the change of ambient temperature also can discharge nitrogen and volatile organic gas), and this device carries out recycling to volatile matter and nitrogen respectively after collecting the gas of discharging, being separated.This device is complete equipment that is energy-conservation and the very significant a kind of gas recycling of environment protecting.
Background technology
As everyone knows, can volatilize in storage tank under the impact that chemical products or raw material rise because of charging and temperature when storing, chemical products or raw material will be caused directly to enter air, very large pollution is caused to environment; Simultaneously because the decline storage tank of discharging and temperature will suck large quantity of air, the raw material caused in storage tank is under certain condition within the scope of explosive limits by this.For reducing the pollution of environment and avoiding the issuable safety problem of storage tank, the process of nitrogen envelope need be carried out to storage tank.Storage tank gas-phase space reduces externally to discharge nitrogen when pressure raises, and supplements nitrogen when storage tank gas-phase space increases when pressure reduces to storage tank.
The gas that the storage tank of usual nitrogen envelope is discharged has following characteristics: (1) gas is large-minded.(2) volatile gas in gas, i.e. organic gas, concentration is low, and most poisonous and harmful.In view of above feature, this type of nitrogen envelope Exhaust Gas does not generally reclaim, and adopts and burns or directly discharge.
Along with the reinforcement gradually of social environment consciousness, and the raising gradually of environmental protection standard, environmental protection supervision is more and more tighter, and this type of nitrogen envelope Exhaust Gas can not directly discharge again.And if burn, not only need to increase equipment investment, but also need additionally to increase fuel (because this type of nitrogen envelope Exhaust Gas concentration is too low, cannot directly burn), also with safety problem.So, if there is a kind of method can also reclaim nitrogen while reclaiming organic gas wherein, then not only solves emission problem (environmental issue), also add economic benefit and (reclaimed organic gas, also reclaimed nitrogen, both all can reuse).
Utility model content
The purpose of this utility model is for existing with nitrogen-sealed organic gas storage tank atmosphere pollution and the large problem of energy consumption, a kind of full regenerative apparatus of breathing emission gases for nitrogen-sealed storage tank is provided, this nitrogen-sealed storage tank is for storing volatile matter, this gas concentration unit is used for the full breathing emission gases reclaiming storage tank, is a kind of environmental protection and the significant device of energy-saving effect.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of full regenerative apparatus of breathing emission gases of nitrogen-sealed storage tank, this device comprises suction fan, nitrogen purification clean unit, nitrogen supercharging storage element and volatile matter recovery unit, the gas access end of described suction fan is communicated with raw material storage tank by the threeway be arranged between raw material storage tank with breathing valve, described nitrogen purification clean unit comprises at least one absorption canister, the gas access end of described absorption canister is communicated with the gas outlet end of described suction fan by valve, described nitrogen supercharging storage element comprises nitrogen compressor, the gas access end of described nitrogen compressor is connected by the gas outlet end of valve with described absorption canister, the gas access end of described absorption canister is also communicated with the arrival end of described volatile matter recovery unit successively with vacuum pump by valve.At least one in filter medium, desiccant and adsorbent is mounted with in described absorption canister.
Breathing emission gases of the present invention is the miscellaneous gas of the VOC that gives off of nitrogen-sealed storage tank internal respiration and nitrogen.
As a kind of preferred version, along the circulating direction of drawing gas in described raw material storage tank, before gas is by described nitrogen purification clean unit by Safety water seal to ensure the safety of raw material storage tank.
As a kind of preferred version, the pipeline between described threeway and suction fan is also provided with flame trap and valve.
As a kind of preferred version, the pressure of drawing gas in described raw material storage tank is monitored by pressure transformer.
As a kind of preferred version, described nitrogen purification clean unit comprises at least two absorption canisters.Further preferred, the quantity of described absorption canister is 2 ~ 8.
As a kind of preferred version, described volatile matter recovery unit is at least one in condenser, adsorber, resorber and membrane separator.
As a kind of preferred version, the material reclaimed by described volatile matter recovery unit is discharged by pump.
As a kind of preferred version, be provided with flame trap and filter successively for being communicated with on the pipeline between described absorption canister gas outlet end and described nitrogen compressor gas access end.
As a kind of preferred version, the gas outlet end of described absorption canister is provided with successively valve and flame trap Ventilated cap.
As a kind of preferred version, the gas outlet end of described nitrogen compressor is communicated with the gas access end of nitrogen storage tank by valve, the raw material storage tank described in the gas outlet end of described nitrogen storage tank is communicated with by valve.
Volatile matter in above-mentioned volatile matter recovery unit can be volatile organic liquid, can be non-volatile inorganic liquid, can be volatile solid, also can adopt the compound of arbitrarily both or three.
Suction fan of the present invention can be blower fan or compressor.
Above-mentioned vacuum pump is screw vacuum pump, piston vacuum pump, rotary-vane vaccum pump or water-ring vacuum pump.
Above-mentioned volatile matter recovery unit can adopt in condensation technology, adsorption technology, absorption techniques and membrane separation technique any one, also can to adopt in above-mentioned technology the combination of two kinds, three kinds or four kinds.
Above-mentioned nitrogen purification clean unit can adopt in filtering technique, dry technology and adsorption technology any one, also can adopt the combination of in above-mentioned technology two or three.Described adsorption technology can adopt charcoal absorption, can adopt silica gel adsorption, also can adopt the combination of above-mentioned technology.
Described nitrogen compressor can be piston compressor, also can be screw compressor.
The working process of device of the present invention is: first simply transform raw material storage tank, raw material storage tank and breathing valve junction are increased threeway gas is drawn, gas is drained into nitrogen purification clean unit by suction fan and (before gas enters nitrogen purification clean unit, arranges Safety water seal after flame trap and valve, further guarantee storage tank safety), VOC is adsorbed in nitrogen purification clean unit, nitrogen compressor can not be entered through flame trap and filter by the nitrogen adsorbed, nitrogen after nitrogen compressor compression enters nitrogen storage tank and stores, after the pressure of nitrogen storage tank exceedes setting value, valve open, unnecessary nitrogen is discharged from back-fire relief Ventilated cap, when raw material storage tank needs supplementary nitrogen, valve open between nitrogen storage tank and raw material storage tank, nitrogen is supplemented to raw material storage tank.Extracted out through vacuum pump by the volatile matter adsorbed in nitrogen purification clean unit, volatile matter recovery unit is entered after parsing from adsorbent (adsorbent can at least one active carbon and silica gel) surface by the volatile matter that adsorbs, volatile matter (can adopt condensation technology at this by recovery technology, adsorption technology can be adopted, absorption techniques can be adopted, membrane separation technique can be adopted, also the combination of above-mentioned technology can be adopted) be converted into liquid, be expelled to user through pump and specify waste liquid tank.
The beneficial effects of the utility model:
This device can reclaim the volatile matter and nitrogen that storage tank internal respiration gives off simultaneously, and this device carries out recycling to volatile matter and nitrogen respectively after collecting the gas of discharging, being separated.It is complete equipment that is energy-conservation and the very significant a kind of gas recycling of environment protecting.
This device will reduce the frequency of utilization of nitrogen making machine and air compressor, energy efficient greatly.The former VOC directly entering air is carried out recycling simultaneously, greatly reduce environmental pollution.
Accompanying drawing explanation
Fig. 1 is the structural representation of the full regenerative apparatus of breathing emission gases of the utility model nitrogen-sealed storage tank.
Detailed description of the invention
The full regenerative apparatus of breathing emission gases of nitrogen-sealed storage tank as shown in Figure 1, this device comprises suction fan 18, nitrogen purification clean unit 7, nitrogen supercharging storage element and volatile matter recovery unit 9, the gas access end of described suction fan 18 is communicated with raw material storage tank 3 by the threeway 2 be arranged between raw material storage tank 3 with breathing valve 1, described nitrogen purification clean unit 7 comprises two absorption canister (7-1, 7-2), described absorption canister (7-1, gas access end 7-2) is respectively by valve (20-1, 20-2) be communicated with the gas outlet end of described suction fan 18, described nitrogen supercharging storage element comprises nitrogen compressor 15, the gas access end of described nitrogen compressor 15 is respectively by valve and described absorption canister (7-1, gas outlet end 7-2) is connected, described absorption canister (7-1, gas access end 7-2) is respectively also successively by valve (21-1, the arrival end of described volatile matter recovery unit 9 21-2) is communicated with vacuum pump 8.Along the circulating direction of drawing gas in described raw material storage tank 3, before gas is by described suction fan 18, pass through Safety water seal 6 to ensure the safety of raw material storage tank 3.Pipeline between described threeway 2 and suction fan 18 is also provided with flame trap 4 and valve 5.The pressure of drawing gas in described raw material storage tank 3 is monitored by pressure transformer 19.The material reclaimed by described volatile matter recovery unit 9 is discharged by pump 10 and valve.Flame trap 13 and filter 14 is provided with successively for being communicated with on the pipeline between described absorption canister (7-1,7-2) gas outlet end and described nitrogen compressor 15 gas access end.The gas outlet end of described absorption canister (7-1,7-2) is provided with successively valve 11 and flame trap Ventilated cap 12.The gas outlet end of described nitrogen compressor 15 is communicated with the gas access end of nitrogen storage tank 16 by valve, the gas outlet end of described nitrogen storage tank 16 is communicated with described raw material storage tank 3 by valve 17.Described volatile matter recovery unit 9 is at least one in condenser, adsorber and membrane separator.
The working process of the full regenerative apparatus of breathing emission gases of above-mentioned nitrogen-sealed storage tank is:
First simply transform raw material storage tank 3, raw material storage tank 3 and breathing valve 1 junction are increased threeway 2 and is drawn by gas, the pressure of drawing gas in raw material storage tank 3 is monitored in real time by pressure transformer 19.Gas is drained into by suction fan 18 purifying (arrange Safety water seal 6 before gas is by suction fan 18, ensures storage tank safety further) that absorption canister (7-1,7-2) carries out nitrogen after flame trap 4 and valve 5.
Described absorption canister (7-1, working process 7-2) is: first valve-off 21-1 and valve 20-2, open valve 20-1, the gas that suction fan 18 is discharged carries out the purifying of nitrogen through absorption canister 7-1 by the adsorbent VOC be filled in absorption canister 7-1, when adsorbent (described adsorbent is active carbon or silica gel) the adsorb volatile organic gas of absorption canister 7-1 is saturated, valve-off 20-1 and valve 21-2, open valve 21-1 and valve 20-2, the gas that suction fan 18 is discharged carries out the purifying of nitrogen through absorption canister 7-2 by the adsorbent VOC be filled in absorption canister 7-2, in absorption canister 7-1, adsorb volatile organic gas is extracted out through vacuum pump 8, VOC enters volatile matter recovery unit 9 after activated carbon of sorbent or Silica Surface parse, organic gas (can adopt condensation technology at volatile matter recovery unit 9 by recovery technology, adsorption technology can be adopted, absorption techniques can be adopted, membrane separation technique can be adopted, also the combination of above-mentioned technology can be adopted) be converted into liquid, be expelled to user through pump 10 and valve and specify waste liquid tank.Described volatile matter recovery unit 9 can be any one in condenser, adsorber, resorber and membrane separator according to the physicochemical property of volatile matter, or any two or three combinationally use.When the adsorbent VOC of absorption canister 7-2 is saturated, open valve 20-1 and valve 21-2, valve-off 21-1 and valve 20-2, the gas that suction fan 18 is discharged carries out the purifying of nitrogen through absorption canister 7-1 by the adsorbent VOC be filled in absorption canister 7-1, in absorption canister 7-2, adsorb volatile organic gas is extracted out through vacuum pump 8, VOC is converted into liquid from entering volatile matter recovery unit 9 after activated carbon of sorbent or Silica Surface parse, and be expelled to user through pump 10 and valve and specify waste liquid tank.Absorption canister 7-1 like this and absorption canister 7-2 is used alternatingly.
Nitrogen after absorption canister 7-1 and absorption canister 7-2 purifying enters nitrogen compressor 15 through flame trap 13 and filter 14, nitrogen after nitrogen compressor 15 compresses enters nitrogen storage tank 16 and stores, after the pressure of nitrogen storage tank 16 exceedes setting value, valve 11 is opened, unnecessary nitrogen is discharged from back-fire relief Ventilated cap 12, when raw material storage tank 3 needs supplementary nitrogen, the valve 17 between nitrogen storage tank 16 and raw material storage tank 3 is opened, and supplements nitrogen to raw material storage tank 3.
Claims (10)
1. the full regenerative apparatus of breathing emission gases of a nitrogen-sealed storage tank, it is characterized in that this device comprises suction fan (18), nitrogen purification clean unit (7), nitrogen supercharging storage element and volatile matter recovery unit (9), the gas access end of described suction fan (18) is communicated with raw material storage tank (3) by the threeway (2) be arranged between raw material storage tank (3) with breathing valve (1), described nitrogen purification clean unit (7) comprises at least one absorption canister, the gas access end of described absorption canister is communicated with the gas outlet end of described suction fan (18) by valve, described nitrogen supercharging storage element comprises nitrogen compressor (15), the gas access end of described nitrogen compressor (15) is connected by the gas outlet end of valve with described absorption canister, the gas access end of described absorption canister is also communicated with the arrival end of described volatile matter recovery unit (9) successively with vacuum pump (8) by valve.
2. device according to claim 1, it is characterized in that the circulating direction along drawing gas in described raw material storage tank (3), at gas by the front Safety water seal (6) that passes through of described nitrogen purification clean unit (7) to ensure the safety of raw material storage tank (3).
3. device according to claim 1 and 2, is characterized in that the pipeline between described threeway (2) and suction fan (18) is also provided with flame trap (4) and valve.
4. device according to claim 1, is characterized in that the pressure of drawing gas in described raw material storage tank (3) is monitored by pressure transformer (19).
5. device according to claim 1, it is characterized in that described nitrogen purification clean unit (7) comprises at least two absorption canisters, the quantity of described absorption canister is preferably 2 ~ 8.
6. device according to claim 1, is characterized in that described volatile matter recovery unit (9) is condenser, at least one in adsorber, resorber and membrane separator.
7. the device according to claim 1 or 6, is characterized in that the material reclaimed by described volatile matter recovery unit (9) is discharged by pump (10).
8. device according to claim 1, is characterized in that the pipeline for being communicated with between described absorption canister gas outlet end and described nitrogen compressor (15) gas access end is provided with flame trap (13) and filter (14) successively.
9. device according to claim 1, the gas outlet end that it is characterized in that described absorption canister is provided with valve and flame trap Ventilated cap (12) successively.
10. the device according to claim 1 or 8, it is characterized in that the gas outlet end of described nitrogen compressor (15) is communicated with the gas access end of nitrogen storage tank (16) by valve, the raw material storage tank (3) described in the gas outlet end of described nitrogen storage tank (16) is communicated with by valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420379568.4U CN204056865U (en) | 2014-07-09 | 2014-07-09 | A kind of full regenerative apparatus of breathing emission gases of nitrogen-sealed storage tank |
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| CN201420379568.4U CN204056865U (en) | 2014-07-09 | 2014-07-09 | A kind of full regenerative apparatus of breathing emission gases of nitrogen-sealed storage tank |
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| CN104843380A (en) * | 2015-05-29 | 2015-08-19 | 中国石油化工股份有限公司 | Method for preventing gas-phase blasting of organic aldehyde storage tanks and reducing volatile matter discharge |
| CN104843375A (en) * | 2015-05-29 | 2015-08-19 | 中国石油化工股份有限公司 | Method for preventing gas-phase blasting of organic ester storage tanks and reducing volatile matter discharge |
| CN105059774A (en) * | 2015-07-14 | 2015-11-18 | 西安理工大学 | P-xylene storage system and process based on inert gas protection |
| CN105691964A (en) * | 2016-02-25 | 2016-06-22 | 江苏海企化工仓储股份有限公司 | Storage device for reducing volatilization and odor of mixed aromatic hydrocarbons |
| CN105797544A (en) * | 2016-04-19 | 2016-07-27 | 北京瑞惠环保科技有限公司 | Self-regulation-membrane bicirculation-condensation-activated carbon adsorption-low temperature catalytic oxidation combination device |
| CN107312564A (en) * | 2017-07-25 | 2017-11-03 | 北京大誉环保科技有限公司 | A kind of VOC gases Zero emission device |
| CN107789956A (en) * | 2017-11-10 | 2018-03-13 | 南京天膜科技股份有限公司 | It is a kind of to realize internal floating roof tank interbedded gas VOCs zero-emissions, remove oxygen and recycle the device of nitrogen |
| CN108792336A (en) * | 2017-04-28 | 2018-11-13 | 中国石油化工股份有限公司 | A kind of the autonomous respiration Zero discharging system and processing method of nitrogen-sealed storage tank |
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| CN109270226A (en) * | 2018-11-29 | 2019-01-25 | 江苏省环境科学研究院 | A kind of the organic liquid volatilization and processing unit of controlled condition |
| CN109945214A (en) * | 2019-04-04 | 2019-06-28 | 中国建材国际工程集团有限公司 | A kind of storage tank volatilization gas processing system |
| CN110143376A (en) * | 2018-02-13 | 2019-08-20 | 中国石油化工股份有限公司 | Storage tank VOCs safe collection Zero emission device |
| CN110143378A (en) * | 2018-02-13 | 2019-08-20 | 中国石油化工股份有限公司 | Storage tank VOCs safe collection Zero emission method |
| CN110143380A (en) * | 2018-02-13 | 2019-08-20 | 中国石油化工股份有限公司 | The safety device of storage tank VOCs discharge open fire equipment |
| CN110562621A (en) * | 2018-06-06 | 2019-12-13 | 中国石油化工股份有限公司 | Light oil storage tank VOCs recovery system and recovery process |
| CN110562620A (en) * | 2018-06-06 | 2019-12-13 | 中国石油化工股份有限公司 | safe recovery system and recovery process for VOCs in heavy oil storage tank |
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- 2014-07-09 CN CN201420379568.4U patent/CN204056865U/en not_active Ceased
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| CN104843380A (en) * | 2015-05-29 | 2015-08-19 | 中国石油化工股份有限公司 | Method for preventing gas-phase blasting of organic aldehyde storage tanks and reducing volatile matter discharge |
| CN104843375A (en) * | 2015-05-29 | 2015-08-19 | 中国石油化工股份有限公司 | Method for preventing gas-phase blasting of organic ester storage tanks and reducing volatile matter discharge |
| CN105059774A (en) * | 2015-07-14 | 2015-11-18 | 西安理工大学 | P-xylene storage system and process based on inert gas protection |
| CN105691964A (en) * | 2016-02-25 | 2016-06-22 | 江苏海企化工仓储股份有限公司 | Storage device for reducing volatilization and odor of mixed aromatic hydrocarbons |
| CN105797544A (en) * | 2016-04-19 | 2016-07-27 | 北京瑞惠环保科技有限公司 | Self-regulation-membrane bicirculation-condensation-activated carbon adsorption-low temperature catalytic oxidation combination device |
| CN105797544B (en) * | 2016-04-19 | 2018-04-03 | 北京瑞惠环保科技有限公司 | One kind self-regulation film Two-way Cycle condensation charcoal absorption low-temperature catalytic oxidation combination unit |
| CN108792336A (en) * | 2017-04-28 | 2018-11-13 | 中国石油化工股份有限公司 | A kind of the autonomous respiration Zero discharging system and processing method of nitrogen-sealed storage tank |
| CN107312564A (en) * | 2017-07-25 | 2017-11-03 | 北京大誉环保科技有限公司 | A kind of VOC gases Zero emission device |
| CN107789956A (en) * | 2017-11-10 | 2018-03-13 | 南京天膜科技股份有限公司 | It is a kind of to realize internal floating roof tank interbedded gas VOCs zero-emissions, remove oxygen and recycle the device of nitrogen |
| CN110143376A (en) * | 2018-02-13 | 2019-08-20 | 中国石油化工股份有限公司 | Storage tank VOCs safe collection Zero emission device |
| CN110143378A (en) * | 2018-02-13 | 2019-08-20 | 中国石油化工股份有限公司 | Storage tank VOCs safe collection Zero emission method |
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| CN110143376B (en) * | 2018-02-13 | 2020-10-02 | 中国石油化工股份有限公司 | Zero discharge apparatus is collected to storage tank VOCs safety |
| CN110143380B (en) * | 2018-02-13 | 2020-12-25 | 中国石油化工股份有限公司 | Safety device of open fire equipment for discharging VOCs (volatile organic compounds) in storage tank |
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| CN110562620A (en) * | 2018-06-06 | 2019-12-13 | 中国石油化工股份有限公司 | safe recovery system and recovery process for VOCs in heavy oil storage tank |
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| CN110562621B (en) * | 2018-06-06 | 2021-10-12 | 中国石油化工股份有限公司 | Light oil storage tank VOCs recovery system and recovery process |
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| CN109270226B (en) * | 2018-11-29 | 2024-04-19 | 江苏省环境科学研究院 | Organic liquid volatilizing and treating device with controllable conditions |
| CN109270226A (en) * | 2018-11-29 | 2019-01-25 | 江苏省环境科学研究院 | A kind of the organic liquid volatilization and processing unit of controlled condition |
| CN109945214A (en) * | 2019-04-04 | 2019-06-28 | 中国建材国际工程集团有限公司 | A kind of storage tank volatilization gas processing system |
| CN112093303A (en) * | 2020-08-19 | 2020-12-18 | 永安智慧科技(杭州)有限公司 | Membrane type water seal device and storage tank waste gas collecting system and method using same |
| CN113758782A (en) * | 2021-09-06 | 2021-12-07 | 北京银河巴马生物技术股份有限公司 | Gaseous reinforcing means of biomaterial |
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