CN203959058U - The nitrogen envelope of volatile organism material storage tank and water seal interlock mothballed plant - Google Patents
The nitrogen envelope of volatile organism material storage tank and water seal interlock mothballed plant Download PDFInfo
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- CN203959058U CN203959058U CN201420415364.1U CN201420415364U CN203959058U CN 203959058 U CN203959058 U CN 203959058U CN 201420415364 U CN201420415364 U CN 201420415364U CN 203959058 U CN203959058 U CN 203959058U
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Abstract
The utility model belongs to environmental protection equipment field, be specifically related to a kind of nitrogen envelope and water seal interlock mothballed plant of volatile organism material storage tank, comprise nitrogen supply air line, nitrogen envelope valve, breathing pipe and flashback tank, electronic gas flowmeter, compression indicator, nitrogen envelope valve, microbarometer and pressure transformer are installed on nitrogen supply air line from front to back in turn, nitrogen supply air line end communicates with breathing pipe, in breathing pipe one end access storage tank, in other end access flashback tank.The utility model reasonable in design, nitrogen envelope valve and flashback tank share the pipeline of nitrogen turnover storage tank, nitrogen seals valve by nitrogen and enters storage tank, the nitrogen that storage tank is discharged is discharged after washing by flashback tank, can effectively reduce the storage loss of volatile organic compound material, reduce the discharge of carrying material secretly in the exhaust of nitrogen envelope simultaneously, alleviate air environmental pollution; Pressure equalizing pipe in flashback tank can be guaranteed to only have and just can discharge during higher than setting value when nitrogen pressure in storage tank, prevents nitrogen waste.
Description
Technical field
The utility model relates to a kind of nitrogen envelope and water seal interlock mothballed plant of volatile organism material storage tank, belongs to environmental protection equipment field.
Background technology
Chemical industry, pharmaceutical industry use a large amount of volatile organic compound material, and these organic materials major parts are inflammable and explosive, poisonous and harmful, peculiar smell are unpleasant.In material storing process, because of reasons such as natural volatilization, material turnover, a large amount of loss of material be can cause, and certain environmental air pollution and safety, occupational health risk brought.Nitrogen envelope refers to and in the containers such as storage tank, is filled with a certain amount of nitrogen, makes liquid and the isolate from outer air of storage in storage tank, reduces the volatilizing loss of material or prevents that in air, objectionable constituent enter capsule contamination storage material.Nitrogen envelope is to realize by special nitrogen envelope valve is installed on storage tank, is mainly used at present finished oil storage tank and ultra-pure water storage tank seal.When tank contents device pressure is during lower than setting value, nitrogen envelope valve fills into nitrogen automatically; When tank contents device pressure is during higher than setting value, will seal valve discharge section nitrogen by nitrogen.These give off nitrogen owing to being mixed with material steam, therefore will cause certain harm to air environment.
Utility model content
According to above deficiency of the prior art, the technical problems to be solved in the utility model is: nitrogen envelope and water seal interlock mothballed plant that a kind of volatile organism material storage tank is provided, can effectively reduce the storage loss of volatile organic compound material, reduce the discharge of carrying material secretly in the exhaust of nitrogen envelope simultaneously, alleviate air environmental pollution.
The nitrogen envelope of volatile organism material storage tank described in the utility model and water seal interlock mothballed plant, comprise nitrogen supply air line, nitrogen envelope valve, breathing pipe and flashback tank, electronic gas flowmeter, compression indicator, nitrogen envelope valve, microbarometer and pressure transformer are installed on nitrogen supply air line from front to back in turn, nitrogen supply air line end communicates with breathing pipe, in breathing pipe one end access storage tank, in other end access flashback tank.
In the utility model, nitrogen envelope valve and flashback tank share the pipeline (being breathing pipe) of nitrogen turnover storage tank, and nitrogen seals valve by nitrogen and enters storage tank, and the nitrogen that storage tank is discharged is discharged after washing by flashback tank, can reduce environmental air pollution; Electronic gas flowmeter on nitrogen supply air line and pressure transformer, for transmitting data to monitor supervision platform, implementing monitoring is reported to the police; Compression indicator and microbarometer show for on-the-spot pressure.
On described nitrogen envelope valve, the pressure guiding pipe being connected with storage tank is housed.Tank internal pressure can be real-time transmitted to nitrogen envelope valve by pressure guiding pipe, realize automatic control.When tank inner pressure is during lower than setting value, nitrogen envelope valve is opened, and starts to tonifying Qi in tank; When tank inner pressure is during higher than 0.7kpa, nitrogen envelope valve cuts out, and stops to tonifying Qi in tank.
In described flashback tank, dividing plate is set, flashback tank is divided into upper and lower partition by dividing plate, in flashback tank, be provided with the pressure equalizing pipe of the upper and lower partition of a connection, upper partition is connected with vacuum breaker pipe, lower partition is connected with high liquid level blow-down pipe, and the upper end open of pressure equalizing pipe is concordant with the water level in upper partition, and lower ending opening is lower than high liquid level blow-down pipe lower wall 150mm, the upper underwater 190mm of partition is inserted in vacuum breaker pipe lower end, and vacuum breaker pipe is all connected freeing pipe with high liquid level blow-down pipe.
In flashback tank, be provided with pressure equalizing pipe, can ensure to only have and just can discharge during higher than setting value when nitrogen pressure in storage tank, prevent nitrogen waste, detailed process is as follows: when material liquid level in storage tank rises, when pressure reaches between setting value and 1.5kpa, because of the head of water between pressure equalizing pipe and high liquid level blow-down pipe, system will keep water seal state; In the time that tank inner pressure is greater than 1.5kpa, in storage tank, nitrogen will enter flashback tank by breathing pipe, after spill pressure equalizing pipe lower ending opening, wash, and finally discharge the nitrogen through washing by high liquid level blow-down pipe, freeing pipe; A small amount of moisture content of carrying secretly in exhaust process flows out by freeing pipe lower end.When nitrogen supply (NS) system et out of order, pressure of storage tank is during lower than-1.9kpa, and vacuum breaker pipe will be broken water seal effect, in time by freeing pipe air amount, prevents that storage tank from being taken out flat.
In described upper and lower partition, be provided with window, the center of upper partition window is concordant with the upper end open of pressure equalizing pipe, the upper limb of lower partition window is lower than high liquid level blow-down pipe lower wall 10～20mm, water level in lower partition did not have the lower upper wall that cuts off window, can observe at any time water seal liquid level in flashback tank by window.
Described flashback tank top is provided with filling pipe, and off-let is installed in flashback tank bottom, and control cock is all installed on filling pipe and off-let.Can inwardly supplement at any time tap water by filling pipe; When off-let is used for overhauling flashback tank, put and the accounts show a surplus of water, the control cock on off-let keeps closed condition while normally use, when maintenance when seal water system or in flashback tank long-time the use when rotten of water open, with by whole water in case emptying.
Except above-mentioned points, mounted valve on the nitrogen supply air line before nitrogen envelope valve, can hand switch source nitrogen by valve, is convenient to installation and repairing.
The beneficial effect that the utility model compared with prior art had is:
The utility model reasonable in design, nitrogen envelope valve and flashback tank share the pipeline of nitrogen turnover storage tank, nitrogen seals valve by nitrogen and enters storage tank, the nitrogen that storage tank is discharged is discharged after washing by flashback tank, can effectively reduce the storage loss of volatile organic compound material, reduce the discharge of carrying material secretly in the exhaust of nitrogen envelope simultaneously, alleviate air environmental pollution; Pressure equalizing pipe in flashback tank can be guaranteed to only have and just can discharge during higher than setting value when nitrogen pressure in storage tank, prevents nitrogen waste.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure: 1, nitrogen supply air line; 2, electronic gas flowmeter; 3, compression indicator; 4, valve; 5, nitrogen envelope valve; 6, pressure guiding pipe; 7, microbarometer; 8, pressure transformer; 9, breathing pipe; 10, storage tank; 11, filling pipe; 12, control cock; 13, vacuum breaker pipe; 14, freeing pipe; 15, high liquid level blow-down pipe; 16, off-let; 17, pressure equalizing pipe; 18, lower partition; 19, lower partition window; 20, dividing plate; 21, upper partition; 22, upper partition window.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
As shown in Figure 1, the nitrogen envelope of volatile organism material storage tank and water seal interlock mothballed plant comprise nitrogen supply air line 1, nitrogen envelope valve 6, breathing pipe 9 and flashback tank, electronic gas flowmeter 2, compression indicator 3, nitrogen envelope valve 6, microbarometer 7 and pressure transformer 8 are installed on nitrogen supply air line 1 from front to back in turn, nitrogen supply air line 1 end communicates with breathing pipe 9, in breathing pipe 9 one end access storage tanks 10, in other end access flashback tank.
In the utility model, nitrogen envelope valve 6 and flashback tank share the pipeline (being breathing pipe 9) of nitrogen turnover storage tank, and nitrogen seals valve 6 by nitrogen and enters storage tank 10, and the nitrogen that storage tank 10 is discharged is discharged after washing by flashback tank, can reduce environmental air pollution; Electronic gas flowmeter 2 on nitrogen supply air line 1 and pressure transformer 8, for transmitting data to monitor supervision platform, implementing monitoring is reported to the police; Compression indicator 3 and microbarometer 7 (its range is 0-5kpa) show for on-the-spot pressure.
Wherein:
On nitrogen envelope valve 6, the pressure guiding pipe 7 being connected with storage tank 10 is housed.Storage tank 10 internal pressures can be real-time transmitted to nitrogen envelope valve 6 by pressure guiding pipe 7, realize automatic control.When storage tank 10 internal pressures are during lower than setting value 0.7kpa, nitrogen envelope valve 6 is opened, and starts to tonifying Qi in tank; When storage tank 10 internal pressures are during higher than 0.7kpa, nitrogen envelope valve 6 cuts out, and stops to tonifying Qi in tank.
In the utility model, flashback tank can adopt traditional sealing structure for water, adopts in the present embodiment following preferred version:
Dividing plate 20 is set in flashback tank, flashback tank is divided into upper and lower partition by dividing plate 20, in flashback tank, be provided with the pressure equalizing pipe 17 of the upper and lower partition of a connection, upper partition 21 is connected with vacuum breaker pipe 13, lower partition 18 is connected with high liquid level blow-down pipe 15, the upper end open of pressure equalizing pipe 17 is concordant with the water level in upper partition 21, lower ending opening is lower than high liquid level blow-down pipe 15 lower wall 150mm, the upper underwater 190mm of partition is inserted in vacuum breaker pipe 13 lower ends, and vacuum breaker pipe 13 is all connected freeing pipe 14 with high liquid level blow-down pipe 15.
When the interior material liquid level of storage tank 10 rises, when pressure reaches 0.7kpa-1.5kpa, because of the head of water between pressure equalizing pipe 17 and high liquid level blow-down pipe 15, system will keep water seal state; In the time that storage tank 10 internal pressures are greater than 1.5kpa, the interior nitrogen of storage tank 10 will enter flashback tank by breathing pipe 9, after spill pressure equalizing pipe 17 lower ending openings, wash, and finally discharge the nitrogen through washing by high liquid level blow-down pipe 15, freeing pipe 14; A small amount of moisture content of carrying secretly in exhaust process flows out by freeing pipe 14 lower ends.Therefore, the pressure equalizing pipe 17 arranging in flashback tank can ensure to only have and just can discharge during higher than setting value when the interior nitrogen pressure of storage tank 10, thereby prevents nitrogen waste.When nitrogen supply (NS) system et out of order, storage tank 10 pressure are during lower than-1.9kpa, and vacuum breaker pipe 13 will be broken water seal effect, in time by freeing pipe 14 air amounts, prevent that storage tank 10 from being taken out flat.
In the upper and lower partition of above-mentioned flashback tank, be provided with window, the center of upper partition window 22 is concordant with the upper end open of pressure equalizing pipe 17, the upper limb of lower partition window 19 is lower than high liquid level blow-down pipe 15 lower wall 10～20mm, water level in lower partition 18 did not have the lower upper wall (the lower window 19 that cuts off is positioned at below the lower partition water surface) that cuts off window 19, can observe at any time water seal liquid level in flashback tank by window.Flashback tank top is provided with filling pipe 11, inwardly supplement at any time tap water, off-let 16 is installed in flashback tank bottom, while being used for overhauling flashback tank, put and the accounts show a surplus of water, on filling pipe 11 and off-let 16, control cock 12 is all installed, control cock 12 on off-let 16 keeps closed condition in the time of normal use, in the time of maintenance seal water system or in flashback tank long-time the use when rotten of water open, with by whole water in case emptying.
Except above-mentioned points, mounted valve 4 on the nitrogen supply air line 1 before nitrogen envelope valve 6, can hand switch source nitrogen by valve 4, is convenient to installation and repairing.
Claims (6)
1. the nitrogen of volatile organism material storage tank envelope and water seal interlock mothballed plant, it is characterized in that: comprise nitrogen supply air line (1), nitrogen envelope valve (5), breathing pipe (9) and flashback tank, electronic gas flowmeter (2) is installed on nitrogen supply air line (1) from front to back in turn, compression indicator (3), nitrogen envelope valve (5), microbarometer (7) and pressure transformer (8), nitrogen supply air line (1) end communicates with breathing pipe (9), in breathing pipe (9) one end access storage tank (10), in other end access flashback tank.
2. the nitrogen of volatile organism material storage tank according to claim 1 envelope and water seal interlock mothballed plant, is characterized in that: on described nitrogen envelope valve (5), the pressure guiding pipe (6) being connected with storage tank (10) is housed.
3. the nitrogen of volatile organism material storage tank according to claim 1 and 2 envelope and water seal interlock mothballed plant, it is characterized in that: dividing plate (20) is set in described flashback tank, dividing plate (20) is divided into flashback tank, lower partition, in flashback tank, be provided with in a connection, the pressure equalizing pipe (17) of lower partition (18), upper partition (21) is connected with vacuum breaker pipe (13), lower partition (18) is connected with high liquid level blow-down pipe (15), the upper end open of pressure equalizing pipe (17) is concordant with the water level in upper partition (21), lower ending opening is lower than high liquid level blow-down pipe (15) lower wall 150mm, upper (21) the underwater 190mm of partition is inserted in vacuum breaker pipe (13) lower end, vacuum breaker pipe (13) is all connected freeing pipe (14) with high liquid level blow-down pipe (15).
4. the nitrogen of volatile organism material storage tank according to claim 3 envelope and water seal interlock mothballed plant, it is characterized in that: in described upper and lower partition, be provided with window, the center of upper partition window (22) is concordant with the upper end open of pressure equalizing pipe (17), the upper limb of lower partition window (19) is lower than high liquid level blow-down pipe (15) lower wall 10～20mm, and the water level in lower partition (18) did not have the lower upper wall that cuts off window (19).
5. according to the nitrogen envelope of the volatile organism material storage tank described in claim 1,2 or 4 and water seal interlock mothballed plant, it is characterized in that: described flashback tank top is provided with filling pipe (11), off-let (16) is installed in flashback tank bottom, on filling pipe (11) and off-let (16), control cock (12) is all installed.
6. the nitrogen of volatile organism material storage tank according to claim 1 envelope and water seal interlock mothballed plant, is characterized in that: at the upper mounted valve (4) of nitrogen envelope valve (5) nitrogen supply air line (1) before.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420415364.1U CN203959058U (en) | 2014-07-25 | 2014-07-25 | The nitrogen envelope of volatile organism material storage tank and water seal interlock mothballed plant |
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| CN201420415364.1U CN203959058U (en) | 2014-07-25 | 2014-07-25 | The nitrogen envelope of volatile organism material storage tank and water seal interlock mothballed plant |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105883231A (en) * | 2016-06-27 | 2016-08-24 | 河南中托力合化学有限公司 | Solvent storage tank protection device |
| CN107472739A (en) * | 2017-08-16 | 2017-12-15 | 天津利安隆新材料股份有限公司 | A kind of storage tank nitrogen seals system |
| CN109931503A (en) * | 2019-04-19 | 2019-06-25 | 山东科源化工有限公司 | A kind of autonomous type nitrogen storage tank nitrogen protection device |
| CN112190978A (en) * | 2020-09-29 | 2021-01-08 | 中冶焦耐(大连)工程技术有限公司 | Device and method for separating acid tar from ammonium sulfate mother liquor |
| CN114455221A (en) * | 2022-03-14 | 2022-05-10 | 滨化集团股份有限公司 | System and method for controlling tank top pressure of normal-pressure storage tank with nitrogen seal |
| CN114588871A (en) * | 2022-03-16 | 2022-06-07 | 安徽省安庆市曙光化工股份有限公司 | Potassium cyanide production system and production method |
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2014
- 2014-07-25 CN CN201420415364.1U patent/CN203959058U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105883231A (en) * | 2016-06-27 | 2016-08-24 | 河南中托力合化学有限公司 | Solvent storage tank protection device |
| CN107472739A (en) * | 2017-08-16 | 2017-12-15 | 天津利安隆新材料股份有限公司 | A kind of storage tank nitrogen seals system |
| CN109931503A (en) * | 2019-04-19 | 2019-06-25 | 山东科源化工有限公司 | A kind of autonomous type nitrogen storage tank nitrogen protection device |
| CN109931503B (en) * | 2019-04-19 | 2024-04-26 | 山东科源化工有限公司 | Autonomous nitrogen protection device for nitrogen storage tank |
| CN112190978A (en) * | 2020-09-29 | 2021-01-08 | 中冶焦耐(大连)工程技术有限公司 | Device and method for separating acid tar from ammonium sulfate mother liquor |
| CN112190978B (en) * | 2020-09-29 | 2024-03-19 | 中冶焦耐(大连)工程技术有限公司 | Device and method for separating acid tar in ammonium sulfate mother liquor |
| CN114455221A (en) * | 2022-03-14 | 2022-05-10 | 滨化集团股份有限公司 | System and method for controlling tank top pressure of normal-pressure storage tank with nitrogen seal |
| CN114588871A (en) * | 2022-03-16 | 2022-06-07 | 安徽省安庆市曙光化工股份有限公司 | Potassium cyanide production system and production method |
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