CN103990426A - Nitrogen-seal protection system - Google Patents
Nitrogen-seal protection system Download PDFInfo
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- CN103990426A CN103990426A CN201410204834.4A CN201410204834A CN103990426A CN 103990426 A CN103990426 A CN 103990426A CN 201410204834 A CN201410204834 A CN 201410204834A CN 103990426 A CN103990426 A CN 103990426A
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- nitrogen
- waste gas
- protection system
- gas header
- valve
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Abstract
The invention discloses a nitrogen-seal protection system. The nitrogen-seal protection system comprises a plurality of U-shaped branched pipes, a waste gas main pipe, a nitrogen valve, a pressure regulating valve, a PLC (Programmable Logic Controller) automatic control instrument and a liquid storage tank, wherein the U-shaped branched pipes are communicated with the waste gas main pipe, the pressure regulating valve is arranged on the waste gas main pipe, and the nitrogen valve and the liquid storage tank are arranged on the waste gas main pipe between the U-shaped branched pipes and the pressure regulating valve. The nitrogen-seal protection system has the advantages that the operation is stable and reliable, and the safety of a production system is improved.
Description
Technical field
The present invention relates to a kind of nitrogen envelope protection system.
Background technology
The devices such as the storage tank in industrial production, measuring tank often need to install additional exhaust treatment system, if each storage tank or measuring tank install emission-control equipment individually additional, in concrete practice, be unpractical, also can greatly increase occupation area of equipment, if but storage tank or measuring tank exhaust are concentrated on to waste gas header just there will be following problem: if 1, the liquid solvent in groove overflows and will enter waste gas header and flow into other grooves in other groove Raws are formed to pollution; 2, when negative pressure appears in whole system, extraneous air will enter and in system, produce potential safety hazard.
Summary of the invention
Technical problem to be solved by this invention is to overcome the shortcoming of above prior art: a kind of stable and reliable operation is provided, improves the nitrogen envelope protection system of production system security.
Technical solution of the present invention is as follows: a kind of nitrogen envelope protection system, and it comprises some U-shaped arms, waste gas header, nitrogen valve, pressure-regulating valve, PLC instrument for automatic control, fluid reservoir; Described U-shaped arm and waste gas header are communicated with, and described waste gas header is provided with pressure-regulating valve, and the waste gas header between described U-shaped arm and pressure-regulating valve is provided with nitrogen valve and fluid reservoir.
One end of described nitrogen valve is communicated with waste gas header, and the other end is connected to nitrogen pot.
Described U-shaped arm one end is communicated with waste gas header, and the other end is communicated with storage tank or measuring tank.
The invention has the beneficial effects as follows: adopt after nitrogen envelope protection system of the present invention, even in the situation that the liquid solvent in storage tank or measuring tank overflows, also can not flow in other grooves solvent in other grooves is formed and polluted; When negative pressure appears in whole system, PLC controls nitrogen valve and opens suction nitrogen; avoid entering of extraneous air to cause system to produce potential safety hazard; because system adopts nitrogen protection; improved the security of production system; adopt PLC automatically to control simultaneously; without operating personnel, stable and reliable operation, maintaining is convenient.
Accompanying drawing explanation
Fig. 1 is the structural representation of nitrogen envelope protection system of the present invention.
In figure, 1, U-shaped arm; 2, waste gas header; 3, nitrogen valve; 4, pressure-regulating valve; 5, PLC instrument for automatic control; 6, fluid reservoir.
The specific embodiment
With specific embodiment, the present invention is described in further details below, but the present invention is not only confined to following specific embodiment.
Embodiment
As shown in Figure 1, a kind of nitrogen envelope protection system, it comprises some U-shaped arms 1, waste gas header 2, nitrogen valve 3, pressure-regulating valve 4, PLC instrument for automatic control 5, fluid reservoir 6; Described U-shaped arm 1 and waste gas header 2 are communicated with, and described waste gas header 2 is provided with pressure-regulating valve 4, and the waste gas header 2 between described U-shaped arm 1 and pressure-regulating valve 4 is provided with nitrogen valve 3 and fluid reservoir 6.
One end of described nitrogen valve 3 is communicated with waste gas header 2, and the other end is connected to nitrogen pot.
Described U-shaped arm 1 one end is communicated with waste gas header 2, and the other end is communicated with storage tank or measuring tank.
Described U-shaped arm 1 is that the shape of falling U is vertical with horizontal plane to be arranged, can guarantee that so U-shaped arm 1 knee is higher than waste gas header 2, when the liquid in storage tank or measuring tank overflows into waste gas header 2, liquid yet can not entered in other grooves the solution of other grooves is formed and polluted by U-shaped arm 1, but flow in fluid reservoir 6, as optimization, fluid reservoir 6 is provided with liquid level sensor, when liquid level exceeds datum level, will give the alarm, avoid overflowing.When system reaches certain pressure, pressure-regulating valve 4 is automatically opened combustion gas to waste gas and is reclaimed or purifier.When negative pressure appears in system, PLC automatically controls nitrogen valve 3 and opens nitrogen protection is provided, and adopts PLC Automatic Control, without increasing operating personnel.
Claims (3)
1. a nitrogen envelope protection system, is characterized in that: it comprises some U-shaped arms (1), waste gas header (2), nitrogen valve (3), pressure-regulating valve (4), PLC instrument for automatic control (5), fluid reservoir (6); Described U-shaped arm (1) and waste gas header (2) are communicated with, and described waste gas header (2) is provided with pressure-regulating valve (4), and the waste gas header (2) between described U-shaped arm (1) and pressure-regulating valve (4) is provided with nitrogen valve (3) and fluid reservoir (6).
2. nitrogen envelope protection system according to claim 1, is characterized in that: one end of described nitrogen valve (3) is communicated with waste gas header (2), and the other end is connected to nitrogen pot.
3. nitrogen envelope protection system according to claim 1, is characterized in that: described U-shaped arm (1) one end is communicated with waste gas header (2), and the other end is communicated with storage tank or measuring tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410204834.4A CN103990426B (en) | 2014-05-14 | 2014-05-14 | Nitrogen-seal protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410204834.4A CN103990426B (en) | 2014-05-14 | 2014-05-14 | Nitrogen-seal protection system |
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| Publication Number | Publication Date |
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| CN103990426A true CN103990426A (en) | 2014-08-20 |
| CN103990426B CN103990426B (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410204834.4A Active CN103990426B (en) | 2014-05-14 | 2014-05-14 | Nitrogen-seal protection system |
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| CN (1) | CN103990426B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120858A (en) * | 2019-11-25 | 2020-05-08 | 宣化钢铁集团有限责任公司 | Exhaust gas recovery control system and control method thereof |
Citations (9)
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|---|---|---|---|---|
| JPH04214920A (en) * | 1990-12-14 | 1992-08-05 | Yamaha Motor Co Ltd | Exhaust pipe structure for ship propeller |
| CN201353578Y (en) * | 2008-12-30 | 2009-12-02 | 上海金发科技发展有限公司 | Absorbed Dust back flow preventing device |
| CN201807368U (en) * | 2010-10-11 | 2011-04-27 | 安徽师范大学 | Propyl p-hydroxybenzoate production equipment |
| CN202048361U (en) * | 2011-04-02 | 2011-11-23 | 南通新邦化工科技有限公司 | Nitrogen protection device of atmospheric storage tank |
| CN202070187U (en) * | 2011-05-16 | 2011-12-14 | 常德云港生物科技有限公司 | Device for realizing recycling and reflowing of condensing system |
| CN102455084A (en) * | 2010-10-18 | 2012-05-16 | 珠海格力电器股份有限公司 | Parallel system of multiple high-pressure cavity compressors |
| CN202237349U (en) * | 2011-09-26 | 2012-05-30 | 蓝星石油有限公司济南分公司 | Acid gas dewatering device for sulfur recovery device |
| CN102889471A (en) * | 2012-05-22 | 2013-01-23 | 鹤壁宝发能源科技股份有限公司 | Centralized gas supply station for pipeline special for civil dimethyl ether gas and gas supply method thereof |
| CN203830006U (en) * | 2014-05-14 | 2014-09-17 | 宁波弘景环保科技有限公司 | Nitrogen sealed protection system |
-
2014
- 2014-05-14 CN CN201410204834.4A patent/CN103990426B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04214920A (en) * | 1990-12-14 | 1992-08-05 | Yamaha Motor Co Ltd | Exhaust pipe structure for ship propeller |
| CN201353578Y (en) * | 2008-12-30 | 2009-12-02 | 上海金发科技发展有限公司 | Absorbed Dust back flow preventing device |
| CN201807368U (en) * | 2010-10-11 | 2011-04-27 | 安徽师范大学 | Propyl p-hydroxybenzoate production equipment |
| CN102455084A (en) * | 2010-10-18 | 2012-05-16 | 珠海格力电器股份有限公司 | Parallel system of multiple high-pressure cavity compressors |
| CN202048361U (en) * | 2011-04-02 | 2011-11-23 | 南通新邦化工科技有限公司 | Nitrogen protection device of atmospheric storage tank |
| CN202070187U (en) * | 2011-05-16 | 2011-12-14 | 常德云港生物科技有限公司 | Device for realizing recycling and reflowing of condensing system |
| CN202237349U (en) * | 2011-09-26 | 2012-05-30 | 蓝星石油有限公司济南分公司 | Acid gas dewatering device for sulfur recovery device |
| CN102889471A (en) * | 2012-05-22 | 2013-01-23 | 鹤壁宝发能源科技股份有限公司 | Centralized gas supply station for pipeline special for civil dimethyl ether gas and gas supply method thereof |
| CN203830006U (en) * | 2014-05-14 | 2014-09-17 | 宁波弘景环保科技有限公司 | Nitrogen sealed protection system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120858A (en) * | 2019-11-25 | 2020-05-08 | 宣化钢铁集团有限责任公司 | Exhaust gas recovery control system and control method thereof |
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|---|---|
| CN103990426B (en) | 2015-06-10 |
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