CN201823608U - Explosion-proof protection device - Google Patents
Explosion-proof protection device Download PDFInfo
- Publication number
- CN201823608U CN201823608U CN2010205354758U CN201020535475U CN201823608U CN 201823608 U CN201823608 U CN 201823608U CN 2010205354758 U CN2010205354758 U CN 2010205354758U CN 201020535475 U CN201020535475 U CN 201020535475U CN 201823608 U CN201823608 U CN 201823608U
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- centrifuge
- oxygen content
- big flow
- low discharge
- measure
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Abstract
The utility model provides an explosion-proof protection device for a centrifugal machine, which belongs to the field of explosion-proof technologies and solves the problems that the conventional centrifugal machine has high probability of combustion and explosion during the use. The explosion-proof protection device for the centrifugal machine comprises a gas inlet pipe and an exhaust pipe which are communicated with the interior of the centrifugal machine, wherein the gas inlet pipe is connected onto a gas storage tank containing nitrogen gas; a pressure relay and a throttling control component for controlling gas inlet quantity are arranged on the gas inlet pipe; a filter and an oxygen content measuring instrument are arranged on the exhaust pipe in sequence; the oxygen content measuring instrument is connected with the throttling control component; and the oxygen content measuring instrument can compare the measured oxygen content of gas in the exhaust pipe with a preset value, and then send out an electrical signal to control the throttling control component. In the utility model, the pressure relay is adopted to show whether the gas inlet pressure supplied to the centrifugal machine reaches a rated value, and the gas inlet quantity of the gas inlet pipe is controlled through the electrical signal fed back by the oxygen content measuring instrument according to the measurement result, so that the air inlet pressure and the oxygen content of the gas in the centrifugal machine are in a safe range, and the centrifugal machine can operate safely.
Description
Technical field
The utility model belongs to the explosion-proof technology field, particularly the flame proection used of centrifuge.
Background technology
Centrifuge makes material produce bigger centrifugal force by rotatablely moving, and relies on this centrifugal force can realize material is separated, prepares, concentrates, purifies.Centrifuge in the market is of a great variety, the thing class of handling is also of all kinds, some causes burning or blast easily as being used in when material on the fields such as chemical industry, pharmacy separates under aerobic state, so when on to centrifuge, handling this type of material, aerobic gas displacement Cheng Buhui in the centrifuge need be caused the gas of burning or blast, as nitrogen.If adopt common gas being replaced into and out of tracheae, whether the oxygen content concentration of at first uncontrollable centrifuge is in safe range; Secondly, the pernicious gas that produces when material separates in centrifuge is (as SO
2, H
2S) can be discharged in the ambient air environment and health around the influence together along escape pipe.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, has proposed a kind of centrifuge flame proection that can use centrifuge safely and can guarantee surrounding working environment.
The purpose of this utility model can realize by following technical proposal: the centrifuge flame proection; comprise be arranged on the centrifuge and with the air inlet pipe and the blast pipe of centrifuge internal communication; it is characterized in that; described air inlet pipe is connected on the air accumulator of depositing nitrogen; on described air inlet pipe, be provided with the throttling Control Component that to control air inflow; be provided with filter and measure of oxygen content instrument on the described blast pipe successively; described measure of oxygen content instrument and described throttling Control Component link, and send the signal of telecommunication after the value contrast of described measure of oxygen content instrument with the measure of oxygen content result of gas in the described blast pipe and setting and control described throttling Control Component.
Nitrogen on the nitrogen storage gas tank is passed in the centrifuge by the throttling Control Component, gas in the centrifuge is replaced to nitrogen gradually, gas in the centrifuge is discharged along blast pipe, after the gas of discharging filters pernicious gas through filter earlier, again the oxygen content of the gas of discharging is detected by the measure of oxygen content instrument, when the oxygen content of testing result was higher than setting value, the signal of telecommunication fed back to circuit control system and envoy's current control assembly and continues to allow entering in the centrifuge of the big flow of nitrogen; When the oxygen content of check result was lower than setting value, the signal of telecommunication fed back to circuit control system control throttling Control Component and gives the air inlet of centrifuge low discharge.
In above-mentioned centrifuge flame proection; described throttling Control Component comprises big flow solenoid valve, big flow choke valve, low discharge magnetic valve and low discharge choke valve; described big flow solenoid valve and described big flow choke valve by pipeline be connected in series, described low discharge magnetic valve is connected in series by pipeline with described low discharge choke valve; above-mentioned then two groups are attempted by on the described air inlet pipe, and described measure of oxygen content instrument electrically connects with described big flow solenoid valve and described low discharge magnetic valve simultaneously.
Measure of oxygen content instrument, big flow solenoid valve and low discharge magnetic valve are connected in the same circuit control system, the low discharge magnetic valve then closed when the signal of telecommunication of measure of oxygen content instrument feedback was controlled big flow solenoid valve and opened by circuit control system, when big flow solenoid valve closes then the low discharge magnetic valve then open.Because big flow solenoid valve is connected in series with big flow choke valve, the low discharge magnetic valve is connected in series with the low discharge choke valve, so nitrogen flow into the gas in the displacement centrifuge in the centrifuge from air inlet pipe smoothly during big flow solenoid valve open mode, the nitrogen of low discharge flowed into centrifuge when the low discharge magnetic valve was opened, guarantee to have on the blast pipe gas to flow out, be convenient to the measure of oxygen content instrument and measure in real time.
In above-mentioned centrifuge flame proection, be serially connected with big flow check valve between described big flow choke valve and the centrifuge, be serially connected with the low discharge check valve between described low discharge choke valve and the centrifuge.Big flow check valve and low discharge check valve are set avoid gas reverse flow in the centrifuge.
In above-mentioned centrifuge flame proection, described air inlet pipe is provided with pressure switch, and described pressure switch is connected on the output of nitrogen storage gas tank.The admission pressure that pressure switch is used to measure nitrogen is set, guarantees safety in production.
In above-mentioned centrifuge flame proection, be connected with vavuum pump on the described blast pipe, described vavuum pump is arranged between measure of oxygen content instrument and the filter.This is provided with and can fast the gas in the centrifuge be extracted out, raises the efficiency.
In above-mentioned centrifuge flame proection, described blast pipe is provided with flowmeter, and described flowmeter is arranged between vavuum pump and the filter.Flowmeter is used to measure the gas flow on the blast pipe.
Compared with prior art, this centrifuge flame proection shows by pressure switch whether the admission pressure of supplying with centrifuge is in specified requirement, the signal of telecommunication by the measure of oxygen content instrument measurement feedback on the blast pipe is controlled at the air inflow on the air inlet pipe, thereby the oxygen content that guarantees gas in admission pressure and the centrifuge makes centrifugal function safe operation within safe range; In addition, the filter that is provided with on blast pipe meets the requirements the waste gas of discharging blast pipe, guarantees that operating personnel have a good working environment.
Description of drawings
Fig. 1 is the structural representation of centrifuge flame proection of the present utility model.
Among the figure, 1, centrifuge; 2, air inlet pipe; 3, blast pipe; 4, air accumulator; 5, filter; 6, measure of oxygen content instrument; 7, big flow solenoid valve; 8, big flow choke valve; 9, big flow check valve; 10, low discharge magnetic valve; 11, low discharge choke valve; 12, low discharge check valve; 13, pressure switch; 14, vavuum pump; 15, flowmeter.
The specific embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As shown in Figure 1, centrifuge flame proection of the present utility model, comprise be arranged on the centrifuge 1 and with the air inlet pipe 2 and the blast pipe 3 of centrifuge 1 internal communication.Air inlet pipe 2 is connected on the air accumulator 4 of depositing nitrogen, is provided with the throttling Control Component of pressure switch 13, control air inflow on air inlet pipe 2.Output from centrifuge 1 on the blast pipe 3 begins to be provided with successively filter 5, flowmeter 15, vavuum pump 14, measure of oxygen content instrument 6.
The throttling Control Component comprises big flow solenoid valve 7, big flow choke valve 8, big flow check valve 9, low discharge magnetic valve 10, low discharge choke valve 11 and low discharge check valve 12.Big flow solenoid valve 7, big flow choke valve 8 and big flow check valve 9 are by the pipeline serial connection, and also by the pipeline serial connection, two groups after the serial connection are attempted by on the air inlet pipe 2 for low discharge magnetic valve 10, low discharge choke valve 11 and low discharge check valve 12.
Before starting centrifuge 1, nitrogen flow in the centrifuge 1 by pressure switch 13, big flow solenoid valve 7, big flow choke valve 8 and big flow check valve 9 through air accumulator 4.Gas in the centrifuge 1 carries out exhaust-gas treatment through filter 5 earlier by blast pipe 3, arrives measure of oxygen content instrument 6 through flowmeter 15, vavuum pump 14 again, and the gas of 6 pairs of discharges of measure of oxygen content instrument carries out the oxygen content measurement of concetration.In that being set on the blast pipe 3, filter 5 can prevent that some pernicious gases from damaging the electrode on measure of oxygen content instrument 6 and discharging working environment around the blast pipe influence; Vavuum pump 14 is set can be extracted the gas in the centrifuge 1 out fast, improves pumping efficiency; And being set, flowmeter 15 is used to measure gas flow on the blast pipe 3.When result that measure of oxygen content instrument 6 is measured be higher than set in the circuit control system about centrifuge 1 in during the oxygen content concentration value of explosive inflammable gas, the signal feedback that measure of oxygen content instrument 6 is measured is to circuit control system, circuit control system makes big flow solenoid valve 7 still be in open mode, nitrogen continues to centrifuge 1 big flow air feed through air accumulator 4, pressure switch 13, big flow solenoid valve 7, big flow choke valve 8 and big flow check valve 9, and this moment, centrifuge 1 can't start; Up to the oxygen content that measure of oxygen content instrument 6 records the gas of discharging blast pipe 3 be lower than set in the circuit control system about centrifuge 1 in during the oxygen content concentration value of explosive inflammable gas, the signal feedback that measure of oxygen content instrument 6 is measured is closed big flow solenoid valve 7 to circuit control system, open low discharge magnetic valve 10, centrifuge 1 can normally start, at this moment, nitrogen is through air accumulator 4, low discharge magnetic valve 10, low discharge choke valve 11 and low discharge check valve 12 continue to centrifuge 1 low discharge air feed, guarantee to have on the blast pipe 3 gas to flow out, make measure of oxygen content instrument 6 be in real-time measurement state, thereby make that centrifuge 1 can trouble free service.Behind centrifuge 1 normal the startup, if the oxygen content of the gas of discharging on the blast pipe 3 is higher than when setting value, the signal of measure of oxygen content instrument 6 feedbacks is given circuit control system, and circuit control system is closed centrifuge 1 automatically.When the nitrogen pressure of output on the air accumulator 4 when being lower than rated value, no matter the oxygen content of output is below or above the rated value of setting on the blast pipe 3, and system all can not start centrifuge 1.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as centrifuge 1, air inlet pipe 2, blast pipe 3, air accumulator 4, filter 5, measure of oxygen content instrument 6, big flow solenoid valve 7, big flow choke valve 8, big flow check valve 9, low discharge magnetic valve 10, low discharge choke valve 11, low discharge check valve 12, pressure switch 13, vavuum pump 14, flowmeter 15 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (6)
1. centrifuge flame proection; comprise be arranged on that centrifuge (1) is gone up and with the air inlet pipe (2) and the blast pipe (3) of centrifuge (1) internal communication; it is characterized in that; described air inlet pipe (2) is connected on the air accumulator (4) of depositing nitrogen; on described air inlet pipe (2), be provided with the throttling Control Component that to control air inflow; be provided with filter (5) and measure of oxygen content instrument (6) on the described blast pipe (3) successively; described measure of oxygen content instrument (6) and described throttling Control Component link, and send the signal of telecommunication after described measure of oxygen content instrument (6) contrasts the value of the measure of oxygen content result of gas in the described blast pipe (3) and setting and control described throttling Control Component.
2. centrifuge flame proection according to claim 1; it is characterized in that; described throttling Control Component comprises big flow solenoid valve (7); big flow choke valve (8); low discharge magnetic valve (10) and low discharge choke valve (11); described big flow solenoid valve (7) is connected in series by pipeline with described big flow choke valve (8); described low discharge magnetic valve (10) is connected in series by pipeline with described low discharge choke valve (11); above-mentioned then two groups are attempted by on the described air inlet pipe (2), and described measure of oxygen content instrument (6) electrically connects with described big flow solenoid valve (7) and described low discharge magnetic valve (10) simultaneously.
3. centrifuge flame proection according to claim 2; it is characterized in that; be serially connected with big flow check valve (9) between described big flow choke valve (8) and the centrifuge (1), be serially connected with low discharge check valve (12) between described low discharge choke valve (11) and the centrifuge (1).
4. according to claim 1 or 2 or 3 described centrifuge flame proections, it is characterized in that described air inlet pipe (2) is provided with pressure switch (13), described pressure switch (13) is connected on the nitrogen output of air accumulator (4).
5. according to claim 1 or 2 or 3 described centrifuge flame proections, it is characterized in that be connected with vavuum pump (14) on the described blast pipe (3), described vavuum pump (14) is arranged between measure of oxygen content instrument (6) and the filter (5).
6. centrifuge flame proection according to claim 5 is characterized in that, described blast pipe (3) is provided with flowmeter (15), and described flowmeter (15) is arranged between vavuum pump (14) and the filter (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205354758U CN201823608U (en) | 2010-09-20 | 2010-09-20 | Explosion-proof protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205354758U CN201823608U (en) | 2010-09-20 | 2010-09-20 | Explosion-proof protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201823608U true CN201823608U (en) | 2011-05-11 |
Family
ID=43962169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205354758U Expired - Lifetime CN201823608U (en) | 2010-09-20 | 2010-09-20 | Explosion-proof protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201823608U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580863A (en) * | 2012-02-27 | 2012-07-18 | 蚌埠精工制药机械有限公司 | Nitrogen protection device of centrifugal machine |
| CN102614996A (en) * | 2012-03-15 | 2012-08-01 | 张家港市腾龙机械制造有限公司 | Hanging bag centrifugal machine |
| CN103862586A (en) * | 2014-03-27 | 2014-06-18 | 如皋市通达机械制造有限公司 | Intelligent inert gas explosion-proof system |
| CN105927541A (en) * | 2016-05-26 | 2016-09-07 | 无锡联合超滤净化设备科技有限公司 | Blowing or induced draft device for pressurizing combustible and explosive as well as corrosive gases |
| CN108889458A (en) * | 2018-08-08 | 2018-11-27 | 江苏同泽过滤科技有限公司 | A kind of explosion protected centrifugal machine system |
| CN111655380A (en) * | 2017-12-20 | 2020-09-11 | 埃佩多夫股份公司 | Temperature controllable centrifugal machine |
| CN112871467A (en) * | 2020-12-23 | 2021-06-01 | 河北化工医药职业技术学院 | Gas protection system and gas protection method of centrifugal machine |
-
2010
- 2010-09-20 CN CN2010205354758U patent/CN201823608U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580863A (en) * | 2012-02-27 | 2012-07-18 | 蚌埠精工制药机械有限公司 | Nitrogen protection device of centrifugal machine |
| CN102614996A (en) * | 2012-03-15 | 2012-08-01 | 张家港市腾龙机械制造有限公司 | Hanging bag centrifugal machine |
| CN103862586A (en) * | 2014-03-27 | 2014-06-18 | 如皋市通达机械制造有限公司 | Intelligent inert gas explosion-proof system |
| CN105927541A (en) * | 2016-05-26 | 2016-09-07 | 无锡联合超滤净化设备科技有限公司 | Blowing or induced draft device for pressurizing combustible and explosive as well as corrosive gases |
| CN111655380A (en) * | 2017-12-20 | 2020-09-11 | 埃佩多夫股份公司 | Temperature controllable centrifugal machine |
| CN111655380B (en) * | 2017-12-20 | 2022-04-15 | 埃佩多夫股份公司 | Temperature controllable centrifugal machine |
| CN108889458A (en) * | 2018-08-08 | 2018-11-27 | 江苏同泽过滤科技有限公司 | A kind of explosion protected centrifugal machine system |
| CN108889458B (en) * | 2018-08-08 | 2024-01-02 | 江苏同泽过滤科技有限公司 | Explosion-proof centrifuge system |
| CN112871467A (en) * | 2020-12-23 | 2021-06-01 | 河北化工医药职业技术学院 | Gas protection system and gas protection method of centrifugal machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110511 |
|
| CX01 | Expiry of patent term |