CN203052202U - Continuous nitrogen supply device - Google Patents

Continuous nitrogen supply device Download PDF

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Publication number
CN203052202U
CN203052202U CN 201320052062 CN201320052062U CN203052202U CN 203052202 U CN203052202 U CN 203052202U CN 201320052062 CN201320052062 CN 201320052062 CN 201320052062 U CN201320052062 U CN 201320052062U CN 203052202 U CN203052202 U CN 203052202U
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CN
China
Prior art keywords
valve
stop valve
pressure
regulating
nitrogen
Prior art date
Application number
CN 201320052062
Other languages
Chinese (zh)
Inventor
林景升
曹素英
Original Assignee
廊坊黎明气体有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 廊坊黎明气体有限公司 filed Critical 廊坊黎明气体有限公司
Priority to CN 201320052062 priority Critical patent/CN203052202U/en
Application granted granted Critical
Publication of CN203052202U publication Critical patent/CN203052202U/en

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Abstract

Provided is a continuous nitrogen supply device. The continuous nitrogen supply device comprises an air separation nitrogen supply pipeline, a standby nitrogen source and a pressure-regulating system, wherein the standby nitrogen source comprises a liquid nitrogen storage tank and a vaporizer, the liquid nitrogen storage tank and the vaporizer are connected in sequence, and the pressure-regulating system comprises a regulating valve, a first stop valve and a second stop valve. The continuous nitrogen supply device further comprises a switching system arranged on the air separation nitrogen supply pipeline, wherein the switching system comprises a magnetic valve arranged on an outlet pipeline of the liquid nitrogen storage tank, a fifth stop valve arranged on the air separation nitrogen supply pipeline, and a pressure transmitter is arranged at the front end of the fifth stop valve, an outlet of the pressure-regulating system is connected on the air separation nitrogen supply pipeline at the rear end of the fifth stop valve, and the switching system is controlled through a PLC. The continuous nitrogen supply device can automatically switch to a standby system when air separation nitrogen supply pressure is abnormal, continuous nitrogen supply can be ensured, pressure is stable, the continuous nitrogen supply device is safe and reliable, and loss caused by stop of nitrogen supply on production is avoided.

Description

A kind of nitrogen device without interruption
Technical field
The utility model relates to the industrial nitrogen feeding mechanism, particularly a kind of device that is applicable to that nitrogen air feed continuity ensures in the industrial production.
Background technique
During general large scale industry is produced continuously air feed adopt the gas space subsystem to realize more, when having a power failure, during fault such as machinery, will stopping air feed.Stop the supple of gas or steam and to impact the production that needs continuity usefulness gas, so general space division system air feed all can be provided with standby air feeder, but automaticity is not high in the prior art, need manually carry out the switching of air feeder, complex operation, therefore when operation is broken down, cause unnecessary loss owing to stop the supple of gas or steam.
The model utility content
The utility model technical issues that need to address provide a kind of device that can nitrogen without interruption, and pressure stability is safe and reliable.
Technical problem described in the utility model realizes with following technical proposals:
A kind of nitrogen device without interruption, it comprises empty bailout gas and the voltage-regulating system that divides steam line, linked to each other by pipeline; Described bailout gas comprises liquid nitrogen storage tank and the vaporizer that connects successively; Described voltage-regulating system comprises modulating valve, first stop valve, second stop valve; Described device also comprises the switched system that is arranged on the steam line, described switched system comprises the solenoid valve that is arranged on the liquid nitrogen storage tank outlet conduit, be arranged on the 5th stop valve on the steam line and be arranged on the pressure transmitter of the 5th stop valve front end, and the outlet of voltage-regulating system is connected on the steam line of the 5th stop valve rear end; Described switched system is controlled by PLC.
Above-mentioned nitrogen device without interruption arranges pressure relief system at steam line, and described pressure relief system comprises safety valve and atmospheric valve.
Above-mentioned nitrogen device without interruption arranges first pressure gauge on the outlet conduit of described vaporizer, second pressure gauge is set on the outlet conduit of voltage-regulating system.
Above-mentioned nitrogen device without interruption, described voltage-regulating system are two pipelines parallel with one another, wherein set gradually first stop valve, modulating valve, second stop valve on a pipeline; Set gradually the 3rd stop valve, second modulating valve, the 4th stop valve on another pipeline.
The utility model has been realized automatically switching to standby system when sky divides supply gas pressure undesired owing to adopted technique scheme, ensures continuous air feed, and pressure stability, and is safe and reliable, avoids the loss of stopping the supple of gas or steam production being caused.
The standby system that the utility model divides the nitrogen steam line as sky, it comprises bailout gas, voltage-regulating system and the switched system that is connected on the steam line.Switched system comprises solenoid valve, the 5th stop valve of control steam line switching and the pressure transmitter that detection steam line upward pressure changes that control liquid nitrogen storage tank outlet conduit opens and closes.The signal of pressure transmitter transfers to solenoid valve and the 5th stop valve, and then can control liquid nitrogen storage tank outlet conduit and steam line.
Because pressure transmitter and solenoid valve and the 5th stop valve are taked interlock control, the handoff procedure between space division system air feed and the standby system air feed is the PLC automatic control process, does not need manually-operable control, and reducing hand labor intensity and people is misoperation.Pressure transmitter can detect supply gas pressure automatically, can automatically switch to standby system when sky divides supply gas pressure undesired, ensures continuous air feed.Standby air feeder is out of service automatically when the sky branch can normally move air feed, does not influence the empty normal air feed that divides.
Description of drawings
Fig. 1 is the utility model structural representation.
Each list of reference numerals is among the figure: 1, bailout gas, 2, voltage-regulating system, 3, pressure relief system, 4, switched system, 5, steam line, 11, first pressure gauge, 12, second pressure gauge, 21, liquid nitrogen storage tank, 22, vaporizer, 101, valve A, 102, valve B, 103, the 3rd stop valve, the 104, the 4th stop valve, 105, first stop valve, 106, second stop valve, 107, atmospheric valve, 108, safety valve, 201, solenoid valve, 202, the 5th stop valve, 203, modulating valve, 204, second modulating valve, 301, pressure transmitter.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
As shown in Figure 1, the utility model comprises nitrogen steam line 5, bailout gas 1, voltage-regulating system 2, pressure relief system 3, the switched system 4 that picks out from space division system, wherein bailout gas 1, voltage-regulating system 2, pressure relief system 3 are connected successively with switched system 4 by pipeline and receive in the lump on the steam line 5.Described bailout gas 1 comprises liquid nitrogen storage tank 21 and vaporizer 22; The nitrogen outlet of liquid nitrogen storage tank 21 bottoms is connected to vaporizer 22 by pipeline, and the outlet of vaporizer 22 is connected to voltage-regulating system 2 by pipeline.Pipeline between liquid nitrogen storage tank 21 and vaporizer 22 arranges solenoid valve 201; Pipeline between vaporizer 22 and voltage-regulating system 2 arranges valve A101 and first pressure gauge 11 of manual control.
Modulating valve 203 and second modulating valve 204 that voltage-regulating system 2 comprises the valve B102 of manual control, is connected in parallel by pipeline.Modulating valve 203 is arranged between first stop valve 105 and second stop valve 106; First stop valve 105 and second stop valve 106 are used for overhauling modulating valve 203.On the backup line in parallel with modulating valve 203 second modulating valve, 204, the second modulating valve 204 are set and are arranged between the 3rd stop valve 103 and the 4th stop valve 104, the 3rd stop valve 103 and the 4th stop valve 104 use when maintenance second modulating valve 204.Second modulating valve 204 is pressure controlled standby modulating valve, when modulating valve 203 cisco unity malfunctions, opens second modulating valve 204 and makes system's proper functioning.The outlet of voltage-regulating system 2 is connected on the steam line 5 via pressure relief system 3.Between the outlet of voltage-regulating system 2 and pressure relief system 3, second pressure gauge 12 is set.
Safety valve 108 and atmospheric valve 107 that pressure relief system 3 arranges for the outlet conduit at voltage-regulating system 2.Atmospheric valve 107 is manual atmospheric valve, and safety valve 108 can take-off when the system superpressure, and both all play the normal effect of carrying of protection pipeline.
Switched system 4 is directly connected on the steam line 5, it comprises the 5th stop valve 202 and pressure transmitter 301 and the pressure-display device that is arranged on the steam line 5, pressure transmitter 301 is arranged on the front end of the 5th stop valve 202, can control the 5th stop valve 202 and solenoid valve 201.The export pipeline of pressure relief system 3 is connected to the rear end of the 5th stop valve 202, and steam line 5 is used the gas point through what switched system 4 was connected to nitrogen.
Below working principle of the present utility model is described further:
The utility model is when work, liquid nitrogen in the liquid nitrogen storage tank 21 enters vaporizer 22 by pipeline via solenoid valve 201, gasification is nitrogen in vaporizer 22, nitrogen enters the pressure that voltage-regulating system 2, the first pressure gauges 11 show vaporizer 22 outlet conduits from vaporizer 22 outlets along pipeline through valve A101.Regulated by the delivery pressure of modulating valve V203, after second pressure gauge 12 detects, reaches working pressure, enter nitrogen gas point.Outlet conduit at voltage-regulating system 2 arranges safety valve 108 and atmospheric valve 107, supply air line is played the effect of protection.
At steam line 5 switched system 4 is set.Nitrogen pressure in sky divides the steam line 5 of nitrogen outlet is crossed when low, transmits signals by pressure transmitter 301, and the 5th stop valve 202 is closed, and solenoid valve 201 is opened simultaneously.After liquid nitrogen stream goes out liquid nitrogen storage tank 21 and enters vaporizer 22 gasification, through voltage-regulating system 2 decompressions, enter steam line 5, finish standby air feed process.After sky divided the pressure of the steam line 5 of nitrogen outlet to reach working pressure, pressure transmitter 301 sent signal, and solenoid valve 201 cuts out automatically, and the 5th stop valve 202 is opened automatically, started space division system operation air feed.Carry out the pressure transmitter 301 of pressure test and take interlock control with solenoid valve 201 and the 5th stop valve 202, make the handoff procedure between space division system air feed and the standby system air feed realize control automatically.

Claims (4)

1. nitrogen device without interruption, it comprises empty steam line (5), bailout gas (1) and the voltage-regulating system (2) of dividing; Described bailout gas (1) comprises liquid nitrogen storage tank (21) and the vaporizer (22) that connects successively, and described voltage-regulating system (2) comprises modulating valve (203), first stop valve (105), second stop valve (106); It is characterized in that, it also comprises the switched system (4) that is arranged on the steam line (5), described switched system (4) comprises the solenoid valve (201) that is arranged on liquid nitrogen storage tank (21) outlet conduit, be arranged on the 5th stop valve (202) on the steam line (5) and be arranged on the pressure transmitter (301) of the 5th stop valve (202) front end, and the outlet of voltage-regulating system (2) is connected on the steam line (5) of the 5th stop valve (202) rear end; Described switched system is controlled by PLC.
2. nitrogen according to claim 1 device without interruption is characterized in that, at described steam line (5) pressure relief system (3) is set, and described pressure relief system (3) comprises safety valve (108) and atmospheric valve (107).
3. nitrogen according to claim 2 device without interruption is characterized in that, first pressure gauge (11) is set on the outlet conduit of described vaporizer (22), and second pressure gauge (12) is set on the outlet conduit of voltage-regulating system (2).
4. nitrogen according to claim 3 device without interruption, it is characterized in that, described voltage-regulating system (2) is two pipelines parallel with one another, wherein sets gradually first stop valve (105), modulating valve (203) and second stop valve (106) on a pipeline; Set gradually the 3rd stop valve (103), second modulating valve (204) and the 4th stop valve (104) on another pipeline.
CN 201320052062 2013-01-30 2013-01-30 Continuous nitrogen supply device CN203052202U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320052062 CN203052202U (en) 2013-01-30 2013-01-30 Continuous nitrogen supply device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320052062 CN203052202U (en) 2013-01-30 2013-01-30 Continuous nitrogen supply device

Publications (1)

Publication Number Publication Date
CN203052202U true CN203052202U (en) 2013-07-10

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Application Number Title Priority Date Filing Date
CN 201320052062 CN203052202U (en) 2013-01-30 2013-01-30 Continuous nitrogen supply device

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104751909A (en) * 2013-12-31 2015-07-01 中国广核集团有限公司 Container pressurizing and energy-storage system in nuclear power station
CN105043013A (en) * 2015-08-31 2015-11-11 深圳市海格金谷化工科技有限公司 Uninterrupted backup system of air separation equipment
CN107023752A (en) * 2017-05-27 2017-08-08 遵义中铂硬质合金有限责任公司 Ammonia air supply system and its application method
CN110107808A (en) * 2019-05-24 2019-08-09 中国舰船研究设计中心 A kind of nitrogen stabilization pressure system for high temperature and pressure hot water circuit
CN111059469A (en) * 2019-12-31 2020-04-24 中国科学院空间应用工程与技术中心 Integrated space application nitrogen supply distribution control device
CN111059466A (en) * 2019-11-29 2020-04-24 青岛歌尔智能传感器有限公司 Nitrogen gas supply device, plasma cleaning system and nitrogen gas supply method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104751909A (en) * 2013-12-31 2015-07-01 中国广核集团有限公司 Container pressurizing and energy-storage system in nuclear power station
CN105043013A (en) * 2015-08-31 2015-11-11 深圳市海格金谷化工科技有限公司 Uninterrupted backup system of air separation equipment
CN105043013B (en) * 2015-08-31 2018-09-28 深圳市海格金谷工业科技有限公司 The uninterrupted back-up system of air separation plant
CN107023752A (en) * 2017-05-27 2017-08-08 遵义中铂硬质合金有限责任公司 Ammonia air supply system and its application method
CN110107808A (en) * 2019-05-24 2019-08-09 中国舰船研究设计中心 A kind of nitrogen stabilization pressure system for high temperature and pressure hot water circuit
CN111059466A (en) * 2019-11-29 2020-04-24 青岛歌尔智能传感器有限公司 Nitrogen gas supply device, plasma cleaning system and nitrogen gas supply method
CN111059469A (en) * 2019-12-31 2020-04-24 中国科学院空间应用工程与技术中心 Integrated space application nitrogen supply distribution control device

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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130710

Termination date: 20170130