CN107102600A - Industrial chromatograph malleation inflates explosion-proof interlock - Google Patents
Industrial chromatograph malleation inflates explosion-proof interlock Download PDFInfo
- Publication number
- CN107102600A CN107102600A CN201710412576.2A CN201710412576A CN107102600A CN 107102600 A CN107102600 A CN 107102600A CN 201710412576 A CN201710412576 A CN 201710412576A CN 107102600 A CN107102600 A CN 107102600A
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- China
- Prior art keywords
- valve
- outlet
- downstream
- terminal
- way air
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 4
- 230000008859 change Effects 0.000 claims description 12
- 238000005273 aeration Methods 0.000 claims description 7
- 230000008901 benefit Effects 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000003111 delayed effect Effects 0.000 claims 1
- 239000002360 explosive Substances 0.000 abstract description 3
- 238000011106 process-scale chromatography Methods 0.000 abstract description 3
- 230000002045 lasting effect Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/048—Monitoring; Safety
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/00584—Control arrangements for automatic analysers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
Explosion-proof interlock is inflated the invention discloses a kind of industrial chromatograph malleation, include a housing, a locking three-way air valve is provided with described housing, the upstream of described locking three-way air valve is provided with a pressure maintaining valve and flow meters, the downstream of described locking three-way air valve resets valve provided with one, the downstream of described reset valve is provided with a gate interlock, the downstream of described gate interlock is provided with a time-delay valve, the downstream of described time-delay valve is provided with a state switching valve, the downstream of described state switching valve provided with a gas electrical relay, an electric control panel and a pressure transmitter.The industrial chromatograph malleation is inflated explosion-proof interlock and is arranged in malleation inflation explosion-proof chamber, barotropic state in the electric controling part to monitor and detect process-scale chromatography, and lasting is blown into incombustible gas to prevent explosive gas from entering this region.It can only power, be automatically performed to chromatograph after electrical equipment control device is fully purged, explosive-proof grade is high, is particularly suitable for the miniaturization of equipment.
Description
Technical field
The present invention relates to a kind of process-scale chromatography, more precisely, being a kind of explosion-proof interlocking dress of industrial chromatograph malleation inflation
Put.
Background technology
It is well known that chemical industry onsite application electrical equipment will reach national regulation explosive-proof grade and it is explosion-proof will
Ask, existing industrial chromatograph blast resistance construction is complicated, submit huge, use inconvenience.
The content of the invention
The present invention mainly solves the technical problem present in prior art, is filled so as to provide a kind of industrial chromatograph malleation
The explosion-proof interlock of gas.
The above-mentioned technical problem of the present invention is mainly what is be addressed by following technical proposals：
Explosion-proof interlock is inflated the invention discloses a kind of industrial chromatograph malleation, comprising a housing, is set in described housing
There is a locking three-way air valve, the upstream of described locking three-way air valve is provided with a pressure maintaining valve and flow meters, described locking three
Breather valve includes the outlet of one first three-way air valve and the outlet of one second three-way air valve, and the downstream of described locking three-way air valve is provided with
One resets valve, and described reset valve resets valve inlet, one second reset valve inlet and one comprising one first and resets valve outlet, described
The first reset valve inlet be connected with described first three-way air valve outlet, the downstream of described reset valve is provided with a couplet on the door
Lock, the downstream of described gate interlock is provided with a time-delay valve, and described time-delay valve includes a delay valve inlet and a delay valve outlet,
Described delay valve inlet is connected with described gate interlock, and the downstream of described time-delay valve is provided with a state switching valve, described
State switching valve include one first switching valve inlet, one second switching valve inlet and a switching valve outlet, described first cuts
Change valve inlet with the delay valve outlet of described time-delay valve to be connected, the second described switching valve inlet and the second described threeway
Air valve outlet is connected, the downstream of described state switching valve provided with a gas electrical relay, described gas electrical relay include
One first entrance terminal, a second entrance terminal and an outlet terminal, described first entrance terminal go out with described switching valve
Mouth is connected, and described second entrance terminal is connected with civil power, and described outlet terminal is connected with an electric control panel, institute
Transfinited terminal comprising a tonifying Qi terminal and one on the electric control panel stated, described tonifying Qi terminal changes aeration valve with one and is connected,
The described terminal that transfinites is connected with the second described reset valve inlet, it is described change aeration valve changed comprising one first fill into mouth,
One second changes and fills into mouth and one and change benefit outlet, and described first changes and fill into mouth and be connected with described tonifying Qi terminal, and described the
Two change and fill into mouth and be connected with the outlet of described pressure maintaining valve, and described electric control panel is provided with a pressure transmitter.
As preferred embodiments of the present invention, described housing is made up of steel plate.
The industrial chromatograph malleation of the present invention, which inflates explosion-proof interlock, has advantages below：Industrial chromatograph malleation inflation is anti-
Quick-fried interlock is arranged in malleation inflation explosion-proof chamber, malleation shape in the electric controling part to monitor and detect process-scale chromatography
State, lasting is blown into incombustible gas to prevent explosive gas from entering this region.Only when electrical equipment control device is fully blown
It can power, be automatically performed to chromatograph after sweeping, explosive-proof grade is high, compact conformation is particularly suitable for the miniaturization of equipment.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 inflates the dimensional structure diagram of explosion-proof interlock for the industrial chromatograph malleation of the present invention.
Embodiment
The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, apparent is clearly defined so as to be made to protection scope of the present invention.
As shown in figure 1, the industrial chromatograph malleation, which inflates explosion-proof interlock, includes a housing, the housing is steel plate system
Into.
A locking three-way air valve V1 is provided with the housing, the upstream of the locking three-way air valve V1 is provided with a pressure maintaining valve 1 and one
Flowmeter 2, the locking three-way air valve V1 exports V11 and one second three-way air valve outlet V12, the band comprising one first three-way air valve
The downstream for locking three-way air valve V1 resets valve V2 provided with one, and reset valve V2 resets comprising one first reset valve inlet V21, one second
Valve inlet V23 and one resets valve outlet V22, and the first reset valve inlet V21 is connected with first three-way air valve outlet V11,
Reset valve V2 downstream is provided with a gate interlock V3, and gate interlock V3 downstream is provided with a time-delay valve V4, and time-delay valve V4 is included
An one delay valve inlet V41 and delay valve outlet V42, the delay valve inlet V41 is connected with gate interlock V3, time-delay valve V4
Downstream be provided with a state switching valve V5, state switching valve V5 enters comprising one first switching valve inlet V51, one second switching valve
The switching valve outlet V53 of mouth V52 and one, first switching valve inlet V51 is connected with time-delay valve V4 delay valve outlet V42,
The second switching valve inlet V52 is connected with second three-way air valve outlet V12, and state switching valve V5 downstream is provided with one
Gas electrical relay QJ1, the gas electrical relay QJ comprising a first entrance terminal QJ1, a second entrance terminal QJ2 and one outlet
Terminal QJ3, the first entrance terminal QJ1 are connected with switching valve outlet V53, and the second entrance terminal QJ2 is electrically connected with city
Connect, outlet terminal QJ3 is connected with an electric control panel 3, transfinited on the electric control panel 3 comprising a tonifying Qi terminal 31 and one
Terminal 32, the tonifying Qi terminal 31 changes aeration valve V6 with one and is connected, and the terminal 32 that transfinites is connected with second reset valve inlet V23
Connect, this change aeration valve V6 changed comprising one first fill into a mouthful V61, one second change fill into mouthful V62 and one change benefit outlet V63, this first
Change and fill into mouthful V61 and be connected with the tonifying Qi terminal 31, this second changes and fill into mouthful V62 and be connected with the outlet of the pressure maintaining valve 1, the electricity
Gas control making sheet 3 is provided with a pressure transmitter KG1.
The course of work that the industrial chromatograph malleation inflates explosion-proof interlock is illustrated below.
Scavenging period：User makes locking three-way air valve V1 be in operating position with key, and instrument wind passes through pressure maintaining valve 1, band
Lock three-way air valve V1 and change aeration valve V6 and be passed through air to malleation inflation explosion-proof chamber.The air pressure of instrument wind is 0.4-0.6Mpa.This
When, time-delay valve V4 starts timing, after 15 minutes, makes get Qi electrical relay QJ adhesives by state switching valve V5, is sent to chromatogram
Electricity.
Monitoring and protecting process：
After the normal power transmission of chromatogram, that is, enter monitoring guard mode, it is ensured that have a relative pressure difference value with external environment in pressurized enclosure.
During normal operation, pressure transmitter KG1 monitors the pressure that malleation inflates explosion-proof chamber always, when pressure value is less than a certain setting value
When, change tonifying Qi electricity valve V6 and ftercompction is carried out to malleation explosion-proof chamber.When pressure value is higher than a certain setting value, changes the electric valve V6 of tonifying Qi and stop
Ftercompction is carried out to malleation explosion-proof chamber.
When pressure transmitter KG1 monitors that malleation inflates the pressure value superpressure of explosion-proof chamber（＞ 800Pa）Or it is under-voltage（＜
200Pa）When, electric control panel 3 resets valve V2 action to valve mono- electric signal of V2 is resetted, at this moment, cut-out gas electrical relay QJ
Supply, while original gas is discharged, due to gas electrical relay QJ supply be cut off, internal electric shock disconnects, so as to reach
The purpose of power-off, then cuts off chromatographic power supply.
When user misoperation opens the front door of microcomputer control unit, gate interlock V3 actions, cut-out gas electrical relay QJ
Supply, while original gas is discharged.Due to gas electrical relay QJ supply broken, internal electric shock disconnects, so as to reach disconnected
The purpose of electricity, automatically closes the power supply of instrument, it is to avoid user's explosion danger because caused by chamber door is opened in maloperation.
After valve V2 actions are resetted, it is necessary to open the door of controller part, click the positive-pressure explosion-proof positioned at right side and even join
The SR of mechanism, behind the door, positive-pressure explosion-proof connects interlocking mechanism can task again for closing control part.
Before instrument carries out normal industry park plan, enough protective gas should be passed through into pressurized enclosure（Air）, make
Explosive mixture concentration is down to below LEL in pressurized enclosure.When instrument carries out normal industry park plan, gas is protected
Body（Air）Pressurized enclosure is continued through, makes the normal pressure that relative instrument installation environment is kept in shell, prevents external mix thing
Into pressurized enclosure, security is good, and reliability is high.
This is not limited to, any change or replacement expected without creative work should all cover the guarantor in the present invention
Within the scope of shield.Therefore, protection scope of the present invention should be determined by the scope of protection defined in the claims.
Claims (2)
1. a kind of industrial chromatograph malleation inflates explosion-proof interlock, comprising a housing, one locking three is provided with described housing
Breather valve（V1）, described locking three-way air valve（V1）Upstream be provided with a pressure maintaining valve（1）And flow meters（2）, described band
Lock three-way air valve（V1）Include the outlet of one first three-way air valve（V11）With the outlet of one second three-way air valve（V12）, described is locking
Three-way air valve（V1）Downstream provided with one reset valve（V2）, described reset valve（V2）Valve inlet is resetted comprising one first（V21）、
One second resets valve inlet（V23）Valve outlet is resetted with one（V22）, described first resets valve inlet（V21）With described
One three-way air valve is exported（V11）It is connected, described reset valve（V2）Downstream be provided with a gate interlock（V3）, described gate interlock
（V3）Downstream be provided with a time-delay valve（V4）, described time-delay valve（V4）Include a delay valve inlet（V41）Go out with a time-delay valve
Mouthful（V42）, described delay valve inlet（V41）With described gate interlock（V3）It is connected, described time-delay valve（V4）Downstream
Provided with a state switching valve（V5）, described state switching valve（V5）Include one first switching valve inlet（V51）, one second switching
Valve inlet（V52）With a switching valve outlet（V53）, described first switching valve inlet（V51）With described time-delay valve（V4）'s
Be delayed valve outlet（V42）It is connected, the second described switching valve inlet（V52）Exported with the second described three-way air valve（V12）
It is connected, described state switching valve（V5）Downstream provided with a gas electrical relay（QJ1）, described gas electrical relay（QJ）
Include a first entrance terminal（QJ1）, a second entrance terminal（QJ2）With an outlet terminal（QJ3）, described first entrance end
Son（QJ1）With described switching valve outlet（V53）It is connected, described second entrance terminal（QJ2）It is connected with civil power, it is described
Outlet terminal（QJ3）With an electric control panel（3）It is connected, described electric control panel（3）It is upper to include a tonifying Qi terminal
（31）Transfinited terminal with one（32）, described tonifying Qi terminal（31）Aeration valve is changed with one（V6）It is connected, the described terminal that transfinites
（32）Valve inlet is resetted with described second（V23）It is connected, described changes aeration valve（V6）Changed comprising one first and fill into mouth
（V61）, one second change and fill into mouth（V62）Benefit outlet is changed with one（V63）, described first changes and fills into mouth（V61）With described benefit
Gas terminal（31）It is connected, described second changes and fill into mouth（V62）With described pressure maintaining valve（1）Outlet be connected, it is described
Electric control panel（3）It is provided with a pressure transmitter（KG1）.
2. industrial chromatograph malleation according to claim 1 inflates explosion-proof interlock, it is characterised in that described housing
It is made up of steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710412576.2A CN107102600B (en) | 2017-06-05 | 2017-06-05 | Industrial chromatograph positive pressure inflates explosion-proof interlock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710412576.2A CN107102600B (en) | 2017-06-05 | 2017-06-05 | Industrial chromatograph positive pressure inflates explosion-proof interlock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107102600A true CN107102600A (en) | 2017-08-29 |
| CN107102600B CN107102600B (en) | 2019-02-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710412576.2A Expired - Fee Related CN107102600B (en) | 2017-06-05 | 2017-06-05 | Industrial chromatograph positive pressure inflates explosion-proof interlock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107102600B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843681A (en) * | 2017-12-19 | 2018-03-27 | 上海神开石油科技有限公司 | A kind of explosion-proof chromatograph of well head |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107102600B (en) | 2019-02-12 |
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Granted publication date: 20190212 |