CN104019372A - Ethylene oxide safe discharging device - Google Patents
Ethylene oxide safe discharging device Download PDFInfo
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- CN104019372A CN104019372A CN201410250677.0A CN201410250677A CN104019372A CN 104019372 A CN104019372 A CN 104019372A CN 201410250677 A CN201410250677 A CN 201410250677A CN 104019372 A CN104019372 A CN 104019372A
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- pressure
- ethylene oxide
- interlocker
- pipe
- safety valve
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Abstract
The invention provides an ethylene oxide safe discharging device which comprises a safety valve (2), a discharging pipe opening (1), a rupture disk (3) and a steam conveying pipe (5). The safety valve (2) and the discharging pipe opening (1) are communicated through a connecting pipe, the rupture disk (3) is in series connection in the connecting pipe, the steam conveying pipe (5) is connected with an outlet of the safety valve (2), and a pressure adjusting valve (7) is arranged on the steam conveying pipe (5). The safe discharging device can effectively reduce the concentration of ethylene oxide released in the atmosphere.
Description
Technical field
The present invention relates to chemical plant installations field, more specifically, relate to a kind of ethylene oxide safety relief device.
Background technique
Ethylene oxide claims again ethylene oxide; it is the simplest a kind of cyclic ethers; under normal temperature, being colourless gas, is colourless runny liquid during lower than 10.7 ℃, has the smell of ether; its steam is to eye and irritant with schneiderian membrane; dissolve each other with water, ethanol, ether, chemical property is very active, can react with chemical compound lot; explosion limit is 3%～100% (volume), is easy to form explosive mixture with air.Ethylene oxide is of many uses in medical science sterilization and industrial sterilizing, and strong to the penetrating power of sterilizing objects, the article deep of can going directly, can kill multiple pathogenic microorganisms, comprises bacterial propagule, brood cell, virus and fungi; In addition, Ring oxidative ethane is also used for kill microorganisms.If be to there is very large danger to discharging a large amount of ethylene oxide in air as can be seen here.
Industrial, the container of splendid attire ethylene oxide is generally all equipped with safety relief device, and safety valve outlet directly enters atmosphere.NBS < < code for fire protection design of petrochemical enterprises GB50160-2008 > > 5.5.9 clause regulation: should establish rupture disk before the safety valve of higher concentration ethylene oxide plant.Rupture disk inlet pipe should be established nitrogen envelope, and the outlet conduit of safety valve should fill nitrogen.5.5.9 interpretation of section is: in the place of emergency drain ethylene oxide, for preventing ethylene oxide polymerization, before safety valve, should establish rupture disk.Rupture disk inlet pipe is established nitrogen envelope, to prevent its autohemagglutination blocking pipe; On safety valve outlet pipe, establish nitrogen, the concentration of discharge ring oxidative ethane to dilute, makes it lower than explosion limit.In ethylene oxide device design, be also all the regulation according to this clause, ethylene oxide safety relief device is set.
Summary of the invention
The object of the present invention is to provide a kind of safety relief device that can effectively reduce the ethylene oxide concentration of discharging into the atmosphere.
For achieving the above object, the invention provides a kind of ethylene oxide safety relief device, comprising: the safety valve being interconnected by connecting tube and the mouth of pipe of releasing; Be connected on the rupture disk in connecting tube; And the steam pipeline that is connected to safety valve outlet, on steam pipeline, be provided with pressure regulator valve.
According to the present invention, ethylene oxide safety relief device also comprises: pressure indication warning interlocker, the pressure point of this pressure indication warning interlocker is arranged in the pipeline section of the connecting tube between safety valve and rupture disk, when sensing the pressure of the mouth of pipe of releasing at pressure point place and reach predefined alarming value, pressure indication warning interlocker is reported to the police.
According to the present invention, pressure indication warning interlocker interlocked control pressure regulator valve, when sensing the pressure of the mouth of pipe of releasing at pressure point place and reach predefined interlocking value, pressure indication warning interlocker pilot pressure modulating valve is opened.
According to the present invention, in connecting tube, on rupture disk and the pipeline section of releasing between the mouth of pipe, be also connected with nitrogen delivery pipe.
According to the present invention, what pass into steam pipeline is the low pressure steam of 3～5 kilograms.
Useful technique effect of the present invention is:
In safety relief device of the present invention, rupture disk is connected in connecting tube, and when the ethylene oxide pressure in connecting tube reaches the bursting pressure value of rupture disk, rupture disk can automatic-explosion.Now, ethylene oxide gas is known from experience the ingress flow to safety valve, when pressure reaches interlocking value, can open the pressure regulator valve on steam pipeline, makes low pressure steam enter steam pipeline and flows to the outlet port of safety valve.When gas pressure reaches the release pressure value of safety valve self, safety valve port opening is discharged gas, to carry out pressure release.Now, the gas of being discharged by safety valve outlet is ethylene glycol, diethylene glycol and the triethylene glycol mixed gas producing after ethylene oxide and low pressure steam reaction, in this way, effectively reduce ethylene oxide emissions that toxicity is higher to the concentration in atmosphere, alleviated the harm of ethylene oxide to human body and environment.
Further, the pressure indication warning interlocker in bleeder can utilize the gas pressure in one section of pipeline section of its pressure point sensing connecting tube.After rupture disk explosion, when pressure point senses pressure after rupture disk and reaches predefined alarming value, pressure indication warning interlocker is reported to the police, and makes operator can carry out Real-Time Monitoring, and obtains in time the information of explosion of rupture disk.
In addition, pressure indication warning interlocker is connected with the pressure regulator valve of interlocked control low pressure steam, when pressure point senses pressure after rupture disk and reaches predefined pressure interlocking value, pressure indication warning interlocker cracking pressure modulating valve, makes low pressure steam can flow into steam pipeline.When pressure does not reach the interlocking value of pressure indication warning interlocker, pressure regulator valve is closed condition, so not only save the consumption of low pressure steam, more can prevent that safety valve from occurring that corrosion failure produces for a long time under the effect of low pressure steam and steam condensate cannot take-off problem.
In addition, in connecting tube, on rupture disk and the pipeline section of releasing between the mouth of pipe, be connected with nitrogen delivery pipe, can in the ethylene oxide gas in connecting tube, pass into nitrogen, thus dilution ethylene oxide gas, make it lower than explosion limit, prevent ethylene oxide auto polymerization obstruction connecting tube simultaneously.
And as known from the above, than bleeder of the prior art, the present invention can provide the ethylene oxide bleeder that Safety performance is higher.
Accompanying drawing explanation
Fig. 1 is the structural representation of safety relief device of the present invention.
Embodiment
Referring now to accompanying drawing, ethylene oxide safety relief device of the present invention is described.
As shown in Figure 1, be the structural representation of safety relief device of the present invention, it comprises the mouth of pipe 1 of releasing, safety valve 2, rupture disk 3 and steam pipeline 5.Specifically, the mouth of pipe 1 of releasing is interconnected by connecting tube with the entrance of safety valve 2, and the mouth of pipe 1 of releasing can be used for ethylene oxide to introduce in safety relief device.Rupture disk 3 is connected in above-mentioned connecting tube, and rupture disk 3 can adopt the rupture disk 3 of conventional model, and the bursting pressure value of rupture disk 3 can be set according to service condition.Steam pipeline 5 is connected to the outlet of safety valve 2, and on steam pipeline, pressure regulator valve 7 is also housed.What preferably, pass into steam pipeline 5 is the low pressure steam of 3～5 kilograms.
In bleeder is used, rupture disk 3 is connected in connecting tube, and when the ethylene oxide pressure in connecting tube reaches the bursting pressure value of rupture disk 3, rupture disk 3 can automatic-explosion.Now, ethylene oxide gas is known from experience the ingress flow to safety valve 2, when pressure reaches interlocking value, can open the pressure regulator valve 7 on steam pipeline 5, makes low pressure steam enter steam pipeline 5 and flows to the outlet port of safety valve 2.When gas pressure reaches the release pressure value of safety valve 2 self, safety valve port opening is discharged gas, to carry out pressure release.Now, the gas of being discharged by safety valve 2 outlets is ethylene glycol, diethylene glycol and the triethylene glycol mixed gas producing after ethylene oxide and low pressure steam reaction, in this way, effectively reduce ethylene oxide emissions that toxicity is higher to the concentration in atmosphere, alleviated the harm of ethylene oxide to human body and environment.
Should be appreciated that the safety valve 2 that adopts in the present invention can be the safety valve of conventional type number, can automatic take-off when its inlet pressure reaches self release pressure value, thus Open valve passes through fluid.In addition, the unlatching of pressure regulator valve 7 can adopt the manually opened mode of operator; Or preferably, can adopt the mode of automatic unlatching as mentioned below, this can determine according to concrete service condition, and the present invention is not limited thereto.
Continuation is with reference to Fig. 1, and safety relief device of the present invention also comprises pressure indication warning interlocker 6, and its pressure point is arranged in the pipeline section of the connecting tube between safety valve 2 and rupture disk 3.Thereby by pressure point, carry out the force value of gas in this section of connecting tube of sensing.Wherein, pressure indication warning interlocker 6 has warning device, and warning device can open in response to the signal of the force value of gas in the connecting tube sensing at pressure point place, thereby gives a warning indication.That is to say, when the pressure of the mouth of pipe 1 of releasing in pressure point place senses connecting tube reaches predefined pressure alarm value, the warning device warning that can directly give a warning.And above-mentioned pressure alarm value can be set as the case may be, that is, the effect of warning device is to send warning to remind the 3 explosions of operator's rupture disk, and safety valve 2 may can carry out take-off at any time.
Further, in a preferred embodiment, pressure indication warning interlocker 6 is connected with the pressure regulator valve 7 of interlocked control low pressure steam, when pressure point place senses pressure after rupture disk 3 and reaches predefined pressure interlocking value, pressure indication warning interlocker 5 cracking pressure modulating valve 7, make low pressure steam can flow into steam pipeline 5.When pressure does not reach the interlocking value of pressure indication warning interlocker 6, pressure regulator valve is closed condition, so not only save the consumption of low pressure steam, more can prevent that safety valve from occurring that corrosion failure produces for a long time under the effect of low pressure steam and steam condensate cannot take-off problem.As known from the above, pressure indication warning interlocker 6 is connected with pressure regulator valve 7, and pressure indication warning interlocker 6 pressure that can sense in response to pressure point place is while reaching pressure interlocking value, and pilot pressure modulating valve 7 is opened.It is pointed out that the PIAS shown in Fig. 1 is the pressure indication warning interlocker 6 in the present invention; PT is pressure transmitter, and it is the part in pressure indication warning interlocker 6; PSV is safety valve 2.In addition, pressure indication warning interlocker 6 can adopt the interlocker of conventional model, and it can set different predefined value (for example, above-described alarming value and pressure interlocking value) according to concrete service condition.
Referring again to Fig. 1, the outlet of safety valve 2 is atmosphere.; low pressure steam through steam pipeline 5 and with connecting tube in after reacting ethylene oxide; and when in connecting tube, reaction gas pressure reaches the release pressure of safety valve 2, safety valve 2 can be opened automatically, and the ethylene glycol producing after reaction, diethylene glycol and triethylene glycol mixed gas are derived.
In a preferred embodiment, in connecting tube, on rupture disk 3 and the pipeline section of releasing between the mouth of pipe 1, be also connected with nitrogen delivery pipe 4, to pass into nitrogen in the ethylene oxide gas in connecting tube, thereby dilution ethylene oxide gas, make it lower than explosion limit, prevent ethylene oxide auto polymerization obstruction connecting tube simultaneously.And as known from the above, than bleeder of the prior art, bleeder Safety performance of the present invention is higher.
In concrete use of the present invention, first ethylene oxide gas enters the mouth of pipe 1 of releasing, and now by nitrogen delivery pipe 4, passes into nitrogen and dilutes ethylene oxide, prevents its polymerization.Then, when the gas pressure in connecting tube reaches the bursting pressure value of rupture disk 3, rupture disk 3 automatic-explosions, now the pressure of pressure indication warning interlocker 6 point senses the inflow of gas, and when pressure reaches default alarming value, warning device being given the alarm, operator can know that rupture disk 3 has damaged in the very first time, very likely take-off of safety valve 2, reminds operator to pay close attention to the variation of splendid attire ethylene oxide container pressure.
Further, now in connecting tube, can be full of ethylene oxide gas, when pressure point senses pressure and reaches default pressure interlocking value, pressure indication warning interlocker 6 can be opened by pilot pressure modulating valve 7, thereby low pressure steam can be delivered to safety valve 2 outlet ports by steam pipeline 5.When safety valve 2 take-off, low pressure steam and ethylene oxide react, and generate the less ethylene glycol of human toxicity, diethylene glycol and triethylene glycol, and excessive low pressure steam can produce diluting effect to unreacted ethylene oxide.
When the pressure of the mixed gas of after chemical reaction generates in connecting tube ethylene glycol, diethylene glycol and triethylene glycol reaches the release pressure of safety valve 2, safety valve 2 take-offs by mixed gas from the outlet of safety valve 2 derive and emptying to atmosphere, the safety, the environmental protection that so far complete ethylene oxide gas are released.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (5)
1. an ethylene oxide safety relief device, is characterized in that, comprising:
The safety valve being interconnected by connecting tube (2) and the mouth of pipe of releasing (1);
Be connected on the rupture disk (3) in described connecting tube; And the steam pipeline (5) that is connected to described safety valve (2) outlet, on described steam pipeline (5), be provided with pressure regulator valve (7).
2. safety relief device according to claim 1, is characterized in that, also comprises:
Pressure indication warning interlocker (6), the pressure point of pressure indication warning interlocker (6) is arranged in the pipeline section of the described connecting tube between described safety valve (2) and described rupture disk (3),
When the pressure at the mouth of pipe (1) of releasing described in described pressure point place senses reaches predefined alarming value, pressure indication warning interlocker (6) is reported to the police.
3. safety relief device according to claim 2, is characterized in that,
Pressure regulator valve (7) described in described pressure indication warning interlocker (6) interlocked control,
When the pressure at the mouth of pipe (1) of releasing described in described pressure point place senses reaches predefined interlocking value, described pressure indication warning interlocker (6) is controlled described pressure regulator valve (7) and is opened.
4. safety relief device according to claim 1, is characterized in that,
In described connecting tube, be positioned at described rupture disk (3) and described in be also connected with nitrogen delivery pipe (4) on the pipeline section of releasing between the mouth of pipe (1).
5. safety relief device according to claim 1, is characterized in that,
What pass into described steam pipeline (5) is the low pressure steam of 3～5 kilograms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410250677.0A CN104019372A (en) | 2014-06-06 | 2014-06-06 | Ethylene oxide safe discharging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410250677.0A CN104019372A (en) | 2014-06-06 | 2014-06-06 | Ethylene oxide safe discharging device |
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| Publication Number | Publication Date |
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| CN104019372A true CN104019372A (en) | 2014-09-03 |
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| CN201410250677.0A Pending CN104019372A (en) | 2014-06-06 | 2014-06-06 | Ethylene oxide safe discharging device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2640588Y (en) * | 2003-06-18 | 2004-09-15 | 连云港国鑫医药设备有限公司 | Epoxyethane residual gas treatment plant |
| JP2006000758A (en) * | 2004-06-17 | 2006-01-05 | Hero Tec Inc | Treatment method and treatment apparatus for waste gas of ethylene oxide gas sterilizer |
| CN201892029U (en) * | 2010-11-24 | 2011-07-06 | 桐乡市恒隆化工有限公司 | Blowing type ethylene oxide storage and delivery device |
| JP2012167072A (en) * | 2011-02-16 | 2012-09-06 | Nippon Shokubai Co Ltd | Method for purifying ethylene oxide |
| CN202844834U (en) * | 2012-10-19 | 2013-04-03 | 中国石油化工股份有限公司 | Ethylene oxide recovery device |
| CN203048572U (en) * | 2013-01-28 | 2013-07-10 | 常熟耐素生物材料科技有限公司 | Ethylene oxide discharging device |
| CN103800926A (en) * | 2013-12-17 | 2014-05-21 | 杨亮月 | Ethylene oxide sterilizing and exhaust gas zero-emission treatment system |
-
2014
- 2014-06-06 CN CN201410250677.0A patent/CN104019372A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2640588Y (en) * | 2003-06-18 | 2004-09-15 | 连云港国鑫医药设备有限公司 | Epoxyethane residual gas treatment plant |
| JP2006000758A (en) * | 2004-06-17 | 2006-01-05 | Hero Tec Inc | Treatment method and treatment apparatus for waste gas of ethylene oxide gas sterilizer |
| CN201892029U (en) * | 2010-11-24 | 2011-07-06 | 桐乡市恒隆化工有限公司 | Blowing type ethylene oxide storage and delivery device |
| JP2012167072A (en) * | 2011-02-16 | 2012-09-06 | Nippon Shokubai Co Ltd | Method for purifying ethylene oxide |
| CN202844834U (en) * | 2012-10-19 | 2013-04-03 | 中国石油化工股份有限公司 | Ethylene oxide recovery device |
| CN203048572U (en) * | 2013-01-28 | 2013-07-10 | 常熟耐素生物材料科技有限公司 | Ethylene oxide discharging device |
| CN103800926A (en) * | 2013-12-17 | 2014-05-21 | 杨亮月 | Ethylene oxide sterilizing and exhaust gas zero-emission treatment system |
Non-Patent Citations (2)
| Title |
|---|
| 《石油化工企业设计防火规范》编制组: "《石油化工企业设计防火规范GB50160-2008》", 1 July 2009, article "5.5.9" * |
| HFUTIVERSON（509521号）: "[求助]环氧乙烷储罐的紧急排放问题", 《海川化工论坛》, 29 May 2013 (2013-05-29) * |
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Application publication date: 20140903 |