CN105233775B - It is a kind of to stir the method that Quick uniform adds diluent and inhibitor when failing - Google Patents
It is a kind of to stir the method that Quick uniform adds diluent and inhibitor when failing Download PDFInfo
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- CN105233775B CN105233775B CN201510579167.2A CN201510579167A CN105233775B CN 105233775 B CN105233775 B CN 105233775B CN 201510579167 A CN201510579167 A CN 201510579167A CN 105233775 B CN105233775 B CN 105233775B
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Abstract
The invention discloses the method that Quick uniform during a kind of stirring failure adds diluent and inhibitor, its device used includes retort, storage tank one, storage tank two and storage tank three, inhibitor is placed in storage tank one, diluent is placed in storage tank two, cooling solvent is placed in storage tank three, connected between storage tank one, storage tank two and retort by feeding main pipeline, the middle part of charging main pipeline is provided with feed pump and inlet valve, the end segment for feeding main pipeline is located at the lower section of agitating paddle, end segment is coil-like, and several charging holes are distributed with card；Connected between retort and storage tank three by the main pipeline that discharges, the front waist section of discharging main pipeline is provided with safety-valve, and the middle part of discharging main leg is provided with outlet valve, and the end segment of discharging main pipeline is located at the top of retort, end segment is coil-like, and several discharge openings are distributed with card.This method can quickly prevent the generation of runaway reaction by the way that diluent and inhibitor are added into retort.
Description
Technical field
The present invention relates to the active prevention and control that Quick uniform under research stirring failure condition adds diluent out of control and inhibitor
Study on Measures technical field, and in particular to a kind of method that Quick uniform adds diluent out of control and inhibitor during stirring failure.
Background technology
Most of process units of petrochemical industry all carries agitating device, in the production process of petrochemical plant
In, stirring primarily serves the effect of dispersed material, reinforcing mass transfer and heat transfer.The situation of stirring failure is widely present in petrochemical industry
In the production process in field, once stirring failure, will cause the phenomenon of the local monomer overrich of reaction system or hot-spot, from
And cause reaction system to deviate normal reaction conditions, if do not taken effective measures, it will trigger serious consequence.
According to literature search result, major part manufacturing enterprise is in the case where failure conditions occurs in agitating device both at home and abroad, if instead
Answer system without departing from normal reaction conditions, then terminate production process, material is unloaded to safety zone, after device to be mixed is normal
Resume production；If reaction system deviates normal reaction conditions, certain cooling, decompression measure is taken to prevent runaway reaction,
If runaway reaction can not be prevented by cooling, decompression measure, prevent to react by adding retarder thinner or inhibitor out of control
It is out of control, if the generation of runaway reaction can't be prevented, it can only be protected and produced by passive protection measure safety relief system
Device, causes loss of material, and financial cost is increased to enterprise.In the process, if can not be prevented by cooling, decompression measure
Runaway reaction, prevents runaway reaction from being most economical to be also for manufacturing enterprise by adding retarder thinner or inhibitor out of control
Safest control measure, material is also repeated after separating treatment and utilized.But most of manufacturing enterprise all passes through at present
The material pipeline on device reaction kettle top adds diluent and inhibitor in reaction system, due to agitating device failure, it is impossible to
The larger production processes of polyalcohol of even scattered diluent and inhibitor, especially number molecular weight, reaction system viscosity is larger,
Diluent and inhibitor quickly and evenly cannot be dispersed in reaction system, it is difficult to play a part of preventing runaway reaction.Cause
How this, quickly and evenly add diluent and inhibitor into reaction system under stirring failure conditions, reduction is lost
The risk of reaction is controlled, is had very important significance for the dangerous technique productions enterprise in the fields such as petrochemical industry.
The content of the invention
, should it is an object of the invention to provide the method that Quick uniform during a kind of stirring failure adds diluent and inhibitor
Method can quickly prevent the generation of runaway reaction by the way that diluent and inhibitor are added into retort.
Its technical solution includes：
It is a kind of to stir the method that Quick uniform adds diluent and inhibitor when failing, comprise the following steps：
A, installation reaction unit, the reaction unit include retort, storage tank one, storage tank two and storage tank three, the reaction
Be provided with motor above tank, be connected with agitating shaft below the motor, the agitating shaft stretch into material in reactor liquid level with
Under, it is connected with stirring slurry in the stirring the tip of the axis；
The storage tank one interior place places diluent in inhibitor, the storage tank two, the interior placement cooling of the storage tank three is molten
Agent, is connected between the storage tank one, storage tank two and retort by feeding main pipeline, and the middle part of the charging main pipeline is set
Have a feed pump and inlet valve, the end segment of the charging main pipeline is located at the lower section of agitating paddle, the end segment be it is coil-like,
Several charging holes are distributed with the coil-like card of composition；
Connected between the retort and storage tank three by the main pipeline that discharges, the front waist section of the discharging main pipeline is provided with
Safety-valve, the middle part of the discharging main leg is provided with outlet valve, and the end segment of the discharging main pipeline is located at reaction
The top of tank, the end segment is coil-like, constitutes and several discharge openings are distributed with coil-like card；
B, open motor drive agitating shaft rotation reacted, when motor agitating shaft stir fail when, open feed pump to
Lead to diluent in retort, diluent enters reaction from the aperture of the front waist section of charging main pipeline, middle part and end segment successively
In tank；
C, diluent fully dilute to the material in retort, if now the pressure in retort rises to safety valve startup pressure
During power, safety valve starts, while opening outlet valve, material in reactor enters in storage tank three with discharging main pipeline, treats storage tank
When pressure is identical with reaction pressure inside the tank in three, the cooling solvent in storage tank three is by front portion of the Action of Gravity Field through the main pipeline that discharges
After the discharge opening of section, middle part and end segment, into retort, material concentration out of control and reduction temperature in diluting reaction kettle are reached
The effect of degree；
If d, by diluent being unable to reach expected cooling temperature, suppression is passed through into retort by feed pump
Agent, switching inhibitor enters in reaction system, prevents runaway reaction.
As the preferred scheme of the present invention, the bottom of the storage tank one is provided with the port of export one, the port of export one
It is connected by pipeline one with charging main pipeline, the bottom of the storage tank two is provided with the port of export two, and the port of export two passes through pipe
Road two is connected with charging main pipeline, and valve is provided with the pipeline one and pipeline two.
As another preferred scheme of the present invention, the outer wall of the retort, which is coated with chuck, the chuck, to be set
There is the water inlet pipe that water supply stream passes through, for cooling to retort.
The advantageous effects that the present invention is brought：
The device that the inventive method is used, storage tank one and storage tank two are connected and by feeding main pipeline and reaction side by side
Tank is connected, and retort is respectively provided with inhibitor and dilute by main pipeline and the connection of storage tank three of discharging in storage tank one and storage tank two
It is low-temperature solvent to release in agent, storage tank three, when the agitator in retort, which breaks down, not to work, and can be opened on charging main pipeline
Pump, by diluent send into retort in, charging main pipeline end segment be set to it is coil-like, in coil-like card be distributed
There are several charging holes, diluent is discharged from each charging hole, i.e., diluent is uniformly added into retort, even if not having
In the case of having agitating device, apparatus of the present invention also can uniformly send into material in retort；
After diluent enters in retort, play a part of diluting reaction system, when the pressure in retort rises to storage tank
When three safety invention starts, simultaneously open material in inlet valve, retort and enter with discharging main pipeline in storage tank three,
When storage tank three is identical with reaction pressure inside the tank, the low temperature feedstock solvent in storage tank three leans on Action of Gravity Field going out at the top of reactor
Expect that main pipeline enters in retort, because the end segment for the main pipeline that discharges is coil-like, and be distributed in coil-like card
There are several discharge openings, can be achieved to be uniformly added into, reach the effect of material concentration out of control and reduction temperature in diluting reaction tank.
It is of the invention successively to have carried out under hydrogen peroxide decomposition and vinyl acetate polymerisation in bulk runaway reaction stirring runaway condition
Add diluent and inhibitor prevents the test of runaway reaction, can effectively prevent the generation of runaway reaction, service condition is stable.
Brief description of the drawings
The present invention is done below in conjunction with the accompanying drawings and clearly and detailedly illustrated：
Fig. 1 is the structural representation of device of the present invention；
Fig. 2 feeds the structural representation of main pipeline end segment for the present invention；
Fig. 3 is the structural representation of present invention discharging main pipeline end segment；
In figure, 1, storage tank one, 2, valve, 3, storage tank two, 4, valve, 5, feed pump, 6, inlet valve, 7, chuck, 8, enter
The mouth of a river, 9, delivery port, 10, charging main pipeline, 11, agitating paddle, 12, safety-valve, 13, discharging main pipeline end segment it is coil-like,
14th, charging main pipeline end segment is coil-like, 15, storage tank three, 16, discharging main pipeline, 17, outlet valve, 18, delivery port, 19, enter
Expect hole, 20, discharge opening.
Embodiment
The invention discloses the method that Quick uniform during a kind of stirring failure adds diluent and inhibitor, in order that this hair
Bright advantage, technical scheme are clearer, clear and definite, and the present invention is elaborated with reference to specific embodiment.
The device selected by the present invention is elaborated first, the present invention, Quick uniform is added during one kind stirring failure
The device of diluent and inhibitor, as shown in figure 1, including the storage tank 1 for placing inhibitor, for placing diluent
Storage tank 23, retort and the storage tank 3 15 for placing low temperature feedstock solvent, wherein, storage tank 1 and storage tank 23
Bottom is respectively arranged with the port of export one and the port of export two, and pipeline one and pipeline two are connected with the port of export one and the port of export two,
Valve 2 and valve 4 are set respectively on pipeline one and pipeline two, for controlling the flow of inhibitor and storage tank two in storage tank one
The flow of interior diluent.
The other end of above-mentioned pipeline one and pipeline two is connected with charging main pipeline 10, and charging main pipeline 10 is used for will dilution
In agent and/or inhibitor feeding retort, charging main pipeline enters from the top of retort, stretches to the bottom of retort,
Feed pump 5 and inlet valve 6 are provided with the charging main pipeline 10, as shown in Fig. 2 the pipeline in the bottom of retort is coil pipe
Shape, that is, feed main pipeline end segment coil-like 14, this is coil-like including card, and several, which are distributed with, in coil-like card enters
Hole 19 is expected, diluent is discharged from each charging hole, i.e., diluent is uniformly added into retort, even if in no stirring dress
In the case of putting, apparatus of the present invention also can uniformly send into material in retort.
The retort is equipped with agitating device, and its is same as the prior art, is made up of motor, agitating shaft and agitating paddle 11,
When agitating device is normal, without leading to diluent and inhibitor into retort, apparatus of the present invention are run out for agitating device
Storage tank one and the conveying inhibitor of storage tank two or diluent are just opened in the case of existing failure.
The connection discharging main pipeline between retort and storage tank 3 15, leading portion portion and the reaction tank deck of the discharging main pipeline
The outlet connection in portion, safety-valve is provided with leading portion portion, and pressure is started when the pressure in retort rises to safety-valve 12
When, safety-valve starts, and the outlet valve 17 on discharging main pipeline also starts, and the partial material after startup in retort is entered
Enter in storage tank 3 15, when the pressure in the pressure in retort and storage tank three is consistent, the low temperature feedstock in storage tank three is molten
Agent enters in retort by Action of Gravity Field, and it is to enter by the main pipeline 16 that discharges in retort, as shown in figure 3, discharging master
The end segment of pipeline 16 is coil-like, that is, has several discharge openings 20 in its card of the main pipeline end segment coil-like 13 that discharges, low
Warm Materials Solvents are discharged into retort from discharge opening 20, reach material concentration out of control and reduction temperature in diluting reaction tank
Effect.
For convenience to reactant system fast cooling, chuck 7, the side of chuck 7 are coated with the peripheral wall of retort
Bottom have and have delivery port 9 at the top of water inlet 8, opposite side, current enter from water inlet 8, are discharged from delivery port 9, assist anti-
Tank 31 is answered to play a part of cooling.
The present invention, the method that Quick uniform adds diluent and inhibitor during stirring failure, comprises the following steps：
Step 1, when with the failure of the agitating device of retort cooperating, now need to the reactant in retort
It is to be cooled, first, opens the valve on the port of export pipeline two of storage tank two, the diluent opened in feed pump, storage tank two exists
Enter successively from the front portion, middle part, afterbody of charging main pipeline in retort in the presence of feed pump, afterbody is coil-like, and
Diluent is sprayed in charging hole in coil-like card, due to charging hole to be uniformly distributed, therefore, diluent is uniform
Add；
Step 2, when the pressure in retort rises to safety-valve 12 and starts pressure, safety-valve starts, anti-after startup
The partial material in tank is answered to enter in storage tank three, when the pressure in the pressure in retort and storage tank three is consistent, storage tank
Low temperature feedstock solvent in three enters in retort by Action of Gravity Field, and it is to enter by the main pipeline that discharges in retort, is gone out
The end segment for expecting main pipeline is coil-like, and low temperature feedstock solvent is discharged into retort from discharge opening, reaches diluting reaction tank
The effect of interior material concentration out of control and reduction temperature；
If step 3, by diluent being unable to reach expected cooling temperature, the upper valve of one outlet conduit of storage tank one is opened
Door, inhibitor is added into retort, ibid, switching inhibitor enters in reaction system the feed postition of inhibitor, prevents to lose
Control reaction.
It should be noted that those skilled in the art are under the enlightenment of the present invention, to charging main pipeline, discharging main pipeline tail
The simple replacement that the coil-like structure of section is made all should be within protection scope of the present invention.
Claims (3)
1. a kind of stir the method that Quick uniform adds diluent and inhibitor when failing, it is characterised in that：Comprise the following steps：
A, installation reaction unit, the reaction unit include retort, storage tank one, storage tank two and storage tank three, the retort
Top is provided with below motor, the motor and is connected with agitating shaft, and the agitating shaft is stretched into retort below material liquid surface,
The stirring the tip of the axis is connected with agitating paddle；
Place in inhibitor, the storage tank two to place in the storage tank one and cooling solvent, institute are placed in diluent, the storage tank three
State between storage tank one, storage tank two and retort by feed main pipeline connect, it is described charging main pipeline middle part be provided with into
Expect pump and inlet valve, the end segment of the charging main pipeline is located at the lower section of agitating paddle, and the end segment is coil-like, composition
Several charging holes are distributed with coil-like card；
Outlet at the top of the retort and the front waist section connection between the import at the top of storage tank three by the main pipeline that discharges, it is described
Safety-valve is provided with the front waist section of discharging main pipeline, by going out between the outlet of the bottom of storage tank three and the retort
Expect the middle part connection of main pipeline, be provided with outlet valve on the middle part of the discharging main pipeline, the tail for the main pipeline that discharges
Section is located at the top of retort, and the end segment is coil-like, constitutes and several discharge openings are distributed with coil-like card；
B, open motor and drive agitating shaft rotation to be reacted, when motor agitating shaft, which is stirred, to fail, open feed pump to reaction
Lead to diluent in tank, diluent enters in retort from the aperture of the front waist section of charging main pipeline, middle part and end segment successively；
C, diluent fully dilute to the material in retort, if now the pressure in retort rises to safety-valve startup pressure
When, safety-valve starts, and enters while opening material in outlet valve, retort with discharging main pipeline in storage tank three, treats storage tank
When pressure is identical with reaction pressure inside the tank in three, the cooling solvent in storage tank three is by middle part of the Action of Gravity Field through the main pipeline that discharges
After the discharge opening of end segment, into retort, the effect of material concentration out of control and reduction temperature in diluting reaction tank is reached；
If d, by diluent being unable to reach expected cooling temperature, inhibitor is passed through into retort by feed pump, cut
Change inhibitor to enter in reaction system, prevent runaway reaction.
2. the method that Quick uniform adds diluent and inhibitor during stirring failure according to claim 1, its feature exists
In：The bottom of the storage tank one is provided with the port of export one, and the port of export one is connected by pipeline one with charging main pipeline, described
The bottom of storage tank two is provided with the port of export two, and the port of export two-way piping two is connected with charging main pipeline, the pipeline one
Valve is provided with pipeline two.
3. the method that Quick uniform adds diluent and inhibitor during stirring failure according to claim 1, its feature exists
In：The outer wall of the retort is coated with chuck, the chuck and is provided with the water inlet pipe that water supply stream passes through, for retort
Cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510579167.2A CN105233775B (en) | 2015-09-11 | 2015-09-11 | It is a kind of to stir the method that Quick uniform adds diluent and inhibitor when failing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510579167.2A CN105233775B (en) | 2015-09-11 | 2015-09-11 | It is a kind of to stir the method that Quick uniform adds diluent and inhibitor when failing |
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| CN105233775A CN105233775A (en) | 2016-01-13 |
| CN105233775B true CN105233775B (en) | 2017-07-28 |
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| CN110449095A (en) * | 2018-05-07 | 2019-11-15 | 中国石油化工股份有限公司 | The emergency termination agent method for implanting of turbine impeller reactor |
| CN110075774A (en) * | 2019-06-14 | 2019-08-02 | 长岭炼化岳阳工程设计有限公司 | Change products the MTBE device and its automatic control method of heat bodied oil with safety auto-controlled system |
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| CN1417092A (en) * | 2001-11-05 | 2003-05-14 | 中国石油化工股份有限公司 | Fulmination preventer for feeding bin |
| CN102020632A (en) * | 2009-09-16 | 2011-04-20 | 辽阳辽东精细化工有限公司 | Method and device for producing sulfolane |
| CN102514844A (en) * | 2011-12-16 | 2012-06-27 | 中国石油化工股份有限公司 | Vinyl acetate storage device and alarm and control method for crude vinyl acetate |
| US8759551B2 (en) * | 2008-03-14 | 2014-06-24 | Dic Corporation | Process for producing epoxy (metha)acrylate |
| CN204338137U (en) * | 2014-12-17 | 2015-05-20 | 江西腾德实业有限公司 | A kind of preparation system of transformer resin-cast material |
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2015
- 2015-09-11 CN CN201510579167.2A patent/CN105233775B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1417092A (en) * | 2001-11-05 | 2003-05-14 | 中国石油化工股份有限公司 | Fulmination preventer for feeding bin |
| US8759551B2 (en) * | 2008-03-14 | 2014-06-24 | Dic Corporation | Process for producing epoxy (metha)acrylate |
| CN102020632A (en) * | 2009-09-16 | 2011-04-20 | 辽阳辽东精细化工有限公司 | Method and device for producing sulfolane |
| CN102514844A (en) * | 2011-12-16 | 2012-06-27 | 中国石油化工股份有限公司 | Vinyl acetate storage device and alarm and control method for crude vinyl acetate |
| CN204338137U (en) * | 2014-12-17 | 2015-05-20 | 江西腾德实业有限公司 | A kind of preparation system of transformer resin-cast material |
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| CN105233775A (en) | 2016-01-13 |
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Effective date of registration: 20170628 Address after: Yanan City, Shandong province Qingdao City three road 266071 No. 218 Applicant after: Qingdao Safety Engineering Research Institute of Sinopec Co., Ltd. Applicant after: Sinopec Corp. Address before: 100728 Chaoyangmen street, Beijing, No. 22, No. Applicant before: Sinopec Corp. Applicant before: Qingdao Safety Engineering Research Institute of Sinopec Co., Ltd. |
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