CN206587734U - A kind of chloroacetate reaction kettle system of accident disposal - Google Patents
A kind of chloroacetate reaction kettle system of accident disposal Download PDFInfo
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- CN206587734U CN206587734U CN201720274954.0U CN201720274954U CN206587734U CN 206587734 U CN206587734 U CN 206587734U CN 201720274954 U CN201720274954 U CN 201720274954U CN 206587734 U CN206587734 U CN 206587734U
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Abstract
The utility model discloses a kind of chloroacetate reaction kettle system of accident disposal, including production of chloroacetic acid system and anxious switching system, production of chloroacetic acid system uses two-stage tandem chlorination, multistage absorption is carried out to the gas overflowed in main reaction kettle, the utilization rate of effecting reaction thing and the purity of accessory substance is improved；After system pressure is drastically raised, can automatic switching-over pipeline valve, realize to the direct pressure release of system pressure, time short efficiency high；And, in order to further improve the collection of accessory substance, system normal reaction superpressure, when pressure value is 0.05~0.07Mpa, pressure in main reaction kettle is set directly to leak into tail gas absorbing system, when improper superpressure in system, when pressure value is more than 0.07Mpa, gas in two reactors is quickly discharged into accident tail gas absorbing system by vavuum pump, realizes to the direct pressure release of pressure source, is prevented effectively from accident.
Description
Technical field
The utility model is related to production of chloroacetic acid field, more particularly to a kind of chloroacetate reaction kettle emergency management system
System.
Background technology
Monoxone is a kind of important organic chemical industry's intermediate, is widely used in medicine, agricultural chemicals, dyestuff and a variety of organic chemistry
In production.With the progress and development of science and technology, the new application field of monoxone will be developed progressively, monoxone life
Production is had an optimistic view of very much with market prospects.
At present, industrialized production method mainly has trichloro ethylene Hydrolyze method, chloracetyl chloride method and acetic acid catalysis
Three kinds of chloridising.And trichloro ethylene Hydrolyze method and chloracetyl chloride method are because raw material sources are limited and cost is higher, thus it is equal in China
Be not applied, using it is most be Catalytic Chlorination of acetic acid method.
Catalyst used in Catalytic Chlorination of acetic acid method mainly has iodine, red phosphorus, sulfonic acid chloride, Cosan, sulfuric acid, chlorosulfonic acid, three
Phosphorus chloride and acetic anhydride etc..Wherein, using acetic acid as raw material, catalyst is made with sulphur, chlorine is passed through in acetic acid, chlorination is carried out,
Chlorated liquid obtains chloroethene acid product by crystallization and rejection filter, and the method is commonly used at home now, is to produce chloroacetic at present
Main method, the advantage of this production method is that raw acetic acid is in liberal supply, and simple production process is easy, and investment of production is few.
When being reacted due to Catalytic Chlorination of acetic acid, the temperature of reactor is higher, at 70~110 DEG C, have part not with acetic acid
Chlorine, acetic acid vapor and side reaction product hydrogen chloride gas of reaction etc. overflow, in order to improve effective raw material utilization rate and
The purity of by-product hydrochloric acid, so condenser is set in the gas outlet of reactor, so as to which chlorine and acetic acid vapor are condensed into
Liquid and being back in reactor is reused.But, chilled brine, chilled brine after condenser is damaged are generally in condenser
It flow in reactor, the ammonia in salt solution in acid condition, reacts with chlorine and generates agene, exothermic heat of reaction, reactor
Temperature is drastically raised, and traditional jacket reactor can not timely and effectively pass the heat for reacting generation, makes whole reaction
System overpressure, if can not release the pressure in reactor in time, can cause blast.Damaged in condenser or other factors are made
After being raised rapidly into reactor pressure, staff needs the very first time to put on biochemical defence suit into scene, by exhaust emissions valve
Closed with chlorine regulating valve, open the emergency episode drain valve in parallel with exhaust relief valve, system pipeline is carried out to vacuumize place
Pressure in reason, reduction system.But, once there is more urgent serious situation, personnel will be unable to enter scene, can cause great
Casualties and property loss.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of security context of chloroacetate reaction, when in reactor
During pressure rise, energy automatic switching-over pipeline valve is realized to pressure release in reactor, is prevented effectively from a kind of monoxone of accident generation
Reactor system of accident disposal.
In order to solve the above technical problems, technical solution adopted in the utility model is：
A kind of chloroacetate reaction kettle system of accident disposal, including production of chloroacetic acid system, it is characterised in that：Also include
Emergent switching system；The production of chloroacetic acid system includes reaction main still, the secondary kettle of reaction, one-level condensing circuit, B-grade condensation and returned
Road and three-level condensing circuit；The entrance connection of the reaction main still is oriented to be passed through the first of chlorine inside it and enters chlorine pipe；Described one
Level condensing circuit includes the first condenser, and the gas overflowed from the reaction main still gas outlet enters the first condenser, through first
The liquid that condenser is condensed into is passed back into reaction main still, forms one-level condensing circuit；The B-grade condensation loop includes the
Two condensers, the gas overflowed from the first condenser gas outlet enters to react in the secondary kettle of reaction, is overflowed from the secondary kettle gas outlet of reaction
Gas enter the second condenser, the liquid condensed through the second condenser, which is flowed back into, to be formed B-grade condensation in the secondary kettle of reaction and returns
Road；The three-level condensing circuit includes the 3rd condenser, and the gas overflowed from the second condenser gas outlet enters the 3rd condenser
Interior, the liquid condensed through the 3rd condenser is passed back into reaction main still, forms three-level condensing circuit；From the 3rd condenser gas outlet
The gas of spilling enters tail gas absorbing system；First condenser and the secondary kettle of reaction, the second condenser and the 3rd condenser with
And the 3rd condenser and reaction main still between connecting line on be equipped with switch valve；The emergent switching system includes emergent
Pipeline and controller；On the gas outlet of the emergency line coupled reaction main still, emergency line at the gas outlet of reaction main still
Provided with the first emergent bleeder valve, the gas outlet of the secondary kettle of the reaction is parallel to emergency line, and the gas outlet of the secondary kettle of reaction with should
Pipeline between anxious pipeline is provided with the second emergent bleeder valve；The outlet of the emergency line separates two branch roads in parallel, its
In branch road be provided with superpressure drain valve, and the branch way outlet is connected with tail gas absorbing system, and another branch road, which is provided with, to be taken out
Vacuum valve and vavuum pump, and the branch way outlet connects with accident tail gas absorbing system；The 3rd condenser gas outlet and tail gas
The first magnetic valve is provided between absorption system；Described first enters chlorine pipe provided with the second magnetic valve；The reaction main still is provided with
Detect the first pressure sensor of its internal pressure；The signal input part of the controller connects the signal of first pressure sensor
Output end, the control output end of controller connects the first magnetic valve, the second magnetic valve, the first emergent bleeder valve, superpressure row respectively
Put valve, vacuum pumping valve and vavuum pump.
Further technical scheme is：The entrance connection of the secondary kettle of reaction is oriented to be passed through the second of chlorine inside it and enters
Chlorine pipe；Bottom of the gas outlet of second condenser also with reaction main still inner chamber is connected, and is overflowed from the second condenser gas outlet
Gas enter reaction main still in react；The gas outlet of first condenser is connected with the air inlet of the 3rd condenser, from
The gas that one condenser gas outlet is overflowed enters in the 3rd condenser, and condensation outlet end and the secondary kettle of reaction of the 3rd condenser connect
Logical, the liquid condensed through the 3rd condenser is flowed back into the secondary kettle of reaction；Second condenser and reaction main still, the first condensation
Switch valve is equipped with connecting line between device and the 3rd condenser and the 3rd condenser and reaction main still；Described second
Enter chlorine pipe provided with the 3rd magnetic valve；The secondary kettle of reaction is provided with the second pressure sensor for detecting its internal pressure；It is described
The signal input part of controller is also connected with the signal output part of second pressure sensor, and the control output end of controller is also connected with
Two emergent bleeder valves.
Further technical scheme is：The end of the emergency line is provided with pressure sensor, the pressure sensor
Signal output part connect controller signal input part, the controller control output end connection warning device.
Further technical scheme is：The warning device is audible-visual annunciator.
Further technical scheme is：The reaction main still or the secondary kettle side of reaction are popped one's head in provided with chlorine leak detection,
The signal output part of the chlorine leak detection probe connects the signal input part of controller.
It is using the beneficial effect produced by above-mentioned technical proposal：
Using two-stage tandem chlorination, multistage absorption is carried out to the gas overflowed in main reaction kettle, effecting reaction thing is improved
Utilization rate and accessory substance purity；
After system pressure is drastically raised, can automatic switching-over pipeline valve, realize to the direct pressure release of system pressure, time
Short efficiency high；Also, in order to further improve the collection of accessory substance, during system normal reaction superpressure (0.05~0.07Mpa), make
Pressure is directly leaked into tail gas absorbing system in main reaction kettle, as improper superpressure (more than 0.07Mpa) in system, and two anti-
Answer the gas in kettle to be quickly discharged into accident tail gas absorbing system by vavuum pump, realize to the direct pressure release of pressure source, be prevented effectively from
Accident occurs.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is another structural representation of the present utility model.
Embodiment
With reference to the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out clear
Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of the present utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those skilled in the art are obtained under the premise of creative work is not made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Many details are elaborated in the following description in order to fully understand the utility model, but this practicality is new
Type can also be different from other manner described here using other implement, and those skilled in the art can be without prejudice to this reality
With doing similar popularization in the case of new intension, therefore the utility model is not limited by following public specific embodiment.
Embodiment 1
As shown in figure 1, a kind of chloroacetate reaction kettle system of accident disposal, including production of chloroacetic acid system, in addition to
Emergent switching system；The production of chloroacetic acid system include reaction main still 10, the secondary kettle 20 of reaction, one-level condensing circuit, two grades it is cold
Solidifying loop and three-level condensing circuit.
In reaction main still 10 as main reaction kettle, and react the gas that secondary kettle 20 is connected in series, is overflowed from reaction main still 10
Body sequentially passes through the backflow of one-level condensing circuit, the secondary assisted reaction of kettle 20 absorption of reaction, the backflow of B-grade condensation loop and three-level condensation
Loop is flowed back, so as to carry out the recovery of effecting reaction thing.
Specific equipment connection and reaction are as follows：
The entrance connection of the reaction main still 10 is oriented to be passed through the first of chlorine inside it and enters chlorine pipe 11, and reaction main still 10
Inside fill acetic acid and catalyst sulphur, under the catalytic action of high temperature and sulphur chlorine and acetic acidreaction generate product monoxone and
Byproduct hydrogen chloride；Because the temperature for reacting main still 10 exists
70~110 DEG C, so having gas (hydrogen chloride 54%, sulfur dioxide 0.2%, chlorine 32% and acetic acid vapor
13% and other gases 0.8%) overflow；
The one-level condensing circuit includes the first condenser 30, and the gas overflowed from reaction main still 10 gas outlet enters
First condenser 30, the liquid being condensed into through the first condenser 30 (liquid chlorine and acetic acid) is passed back into reaction main still 10, is formed
One-level condensing circuit；
The B-grade condensation loop includes the second condenser 40, the gas (chlorination overflowed from the gas outlet of the first condenser 30
Hydrogen, sulfur dioxide, chlorine and acetic acid vapor etc.) enter and reacted in the secondary kettle 20 of reaction, equally filled in the secondary kettle 20 of reaction acetic acid and
Catalyst sulphur, and the secondary kettle of reaction is in keeping warm mode, so the secondary kettle 20 of reaction can absorb a part of chlorine and acetic acid vapor,
The gas (hydrogen chloride, sulfur dioxide, chlorine and acetic acid vapor etc.) overflowed from the secondary gas outlet of kettle 20 of reaction enters the second condenser
40, the liquid (liquid chlorine and acetic acid) condensed through the second condenser 40 flows back into the secondary kettle 20 of reaction and forms B-grade condensation loop；
The three-level condensing circuit includes the 3rd condenser 50, the gas (chlorination overflowed from the gas outlet of the second condenser 40
Hydrogen, sulfur dioxide, chlorine and acetic acid vapor etc.) enter in the 3rd condenser 50, the liquid (liquid chlorine condensed through the 3rd condenser 50
And acetic acid) pass back into reaction main still 10, form three-level condensing circuit；
Gas (hydrogen chloride 96%, acetic acid 3%, the sulfur dioxide 0.2% and other overflowed from the gas outlet of the 3rd condenser 50
Gas 0.8%) enter tail gas absorbing system；
From reaction main still 10 available gas (chlorine and acetic acid vapor) that overflows by the condensing reflux of the first condenser 30,
The secondary reactive absorption of kettle 20 of reaction, the condensing reflux of the second condenser 40 and the condensing reflux of the 3rd condenser 50.By using two grades of strings
Join chlorination, multistage absorption is carried out to the gas overflowed in reaction main still 10, the utilization rate of effecting reaction thing is improved.
Because tail gas absorbing system carries out the absorption of hydrogen chloride gas using the hydrochloric acid of low concentration, when the concentration of hydrochloric acid reaches
Carry out extraction after 31% to sell, the gas by the absorption by Hydrochloric Acid of low concentration is mainly hydrogen chloride, improves the purity of accessory substance.
First condenser 30 and the secondary kettle 20 of reaction, the second condenser 40 and the 3rd condenser 50 and the 3rd condenser
Switch valve is equipped with connecting line between 50 and reaction main still 10, above-mentioned switch valve is remained on,
Then above-mentioned reaction can be carried out.
In order to detect the pressure change in reaction main still 10, and made accordingly according to the pressure value in detection reaction main still 10
The switching of pressure relief pipe, switching system of meeting an urgent need includes emergency line 70 and controller.
Specific structure and handover operation are as follows：
In the gas outlet of reaction main still 10 on the gas outlet of the coupled reaction main still 10 of emergency line 70, emergency line 70
Locate provided with the first emergent bleeder valve 73, the gas outlet of the secondary kettle 20 of reaction is parallel to emergency line 70, and reacts secondary kettle 20
Pipeline between gas outlet and emergency line 70 is provided with the second emergent bleeder valve 74；The outlet of the emergency line 70 separates two
Bar branch road in parallel, wherein a branch road is provided with superpressure drain valve 71, and the branch way outlet is connected with tail gas absorbing system, separately
One branch road is provided with vacuum pumping valve 72 and vavuum pump 75, and the branch way outlet is connected with accident tail gas absorbing system；
The first magnetic valve 51 is provided between the gas outlet of 3rd condenser 50 and tail gas absorbing system；
Described first enters chlorine pipe 11 provided with the second magnetic valve 13；
The reaction main still 10 is provided with the first pressure sensor 12 for detecting its internal pressure；
The signal output part of the signal input part connection first pressure sensor 12 of the controller, the control of controller is defeated
Go out end and connect the first magnetic valve 51, the second magnetic valve 13, first emergent bleeder valve 73, superpressure drain valve 71, vacuum pumping valve respectively
72 and vavuum pump 75.
In production of chloroacetic acid system normal reaction, the first magnetic valve 51 and the second magnetic valve 13 are in normally open, the
One emergent bleeder valve 73, second emergent bleeder valve 74, superpressure drain valve 71, vacuum pumping valve 72 and vavuum pump 75 is in normally closed shape
State.
Pressure in the main still 10 of detection reaction in real time of first pressure sensor 12.During production of chloroacetic acid system normal reaction,
It is 0.03~0.05Mpa (not including 0.05Mpa) to react the pressure value in main still 10；When reaction is normal super in reaction main still 10
Pressure, pressure value is in 0.05~0.07Mpa；And when the first condenser 30 or the 3rd condenser 50 are damaged, chilled brine flow to reaction
In main still 10, or when the second condenser 40 is damaged, chilled brine is flow in the secondary kettle 20 of reaction, can all cause the ammonia and chlorine in salt solution
Gas reacts drastically heat release in acid condition, is timely and effectively passed because traditional jacket reactor can not will react the heat produced
Pass away, cause whole reacting system pressure drastically to raise, pressure value is more than 0.07Mpa.First pressure sensor 12 will be detected
To reaction main still 10 in pressure value be transferred to controller, controller is PLC.When the pressure value be 0.03~
During 0.05Mpa (not including 0.05Mpa), controller does not make any control operation；When the pressure value is in 0.05~0.07Mpa
When, controller controls the second magnetic valve 13 to close, and the first emergent bleeder valve 73 and superpressure drain valve 71 is opened, in reaction main still 10
Pressure be directly discharged into tail gas absorbing system, be no longer flow through other pipelines, when reaction main still 10 in pressure value drop to 0.05Mpa
When following, controller controls the second magnetic valve 13 to open, and the first emergent bleeder valve 73 and superpressure drain valve 71 is closed, and system is recovered
Normal operating conditions；And when the pressure value is more than 0.07Mpa, controller controls the first magnetic valve 51 and the second magnetic valve 13 to close
Close, the first emergent bleeder valve 73, second emergent bleeder valve 74, vacuum pumping valve 72 and vavuum pump 75 is opened, in reaction main still 10
Pressure is quickly pumped into accident tail gas absorbing system by vavuum pump 75, it is to avoid system is exploded, until pressure is near in system
Below 0.03Mpa, staff enters maintenance or changes the condenser damaged.
The utility model in system after pressure rise, can automatic switching-over pipeline valve, realize straight to system pressure source
Connect pressure release, time short efficiency high；Also, in order to further improve the collection of accessory substance, react the normal reaction superpressure of main still 10
When (0.05~0.07Mpa), pressure in reaction main still 10 is set directly to leak into tail gas absorbing system, when improper superpressure in system
When (more than 0.07Mpa), the gas in two reactors is quickly discharged into accident tail gas absorbing system by vavuum pump, realizes to pressure
The direct pressure release in power source, is prevented effectively from accident.
Also, the reaction main still 10 or the secondary side of kettle 20 of reaction are provided with chlorine leak detection probe 80, and the chlorine is let out
The signal output part of leak detection probe 80 connects the signal input part of controller.When pipeline failure, valve or flange failure,
When there is chlorine leakage, chlorine leak detection probe 80 detects chlorine, transmits the signal to controller, controller control the
One magnetic valve 51 and the second magnetic valve 13 are closed, and the first emergent bleeder valve 73, second is met an urgent need bleeder valve 74, vacuum pumping valve 72 and true
Empty pump 75 is opened, and the pernicious gas (chlorine) in system is pumped, and is repaired so that later stage workman enters, is prevented effectively from accident
And reduce personnel's injury.
Embodiment 2
As shown in Fig. 2 increasing following structure on the architecture basics of embodiment 1, to complete reaction in reaction main still 10
Afterwards, without stopping production, but by the use of the secondary kettle 20 of reaction as main reaction kettle, during being heated up to the secondary kettle 20 of reaction, it will react
Feed liquid in main still 10 is fallen away, is then added and is incubated after acetic acid and catalyst sulphur again into reaction main still 10.Make full use of
Time, improve operating efficiency.
Specifically structure is：
The entrance connection of the secondary kettle 20 of reaction is oriented to be passed through the second of chlorine inside it and enters chlorine pipe 21；
Bottom of the gas outlet of second condenser 40 also with reaction main still 10 inner chamber is connected, and is gone out from the second condenser 40
The gas that gas port overflows enters to react in reaction main still 10；
The gas outlet of first condenser 30 is connected with the air inlet of the 3rd condenser 50, from the outlet of the first condenser 30
Mouthful gas overflowed enters in the 3rd condenser 50, and the condensation outlet end of the 3rd condenser 50 is connected with reaction pair kettle 20, through the
The liquid of three condensers 50 condensation is flowed back into the secondary kettle 20 of reaction；
Second condenser 40 and reaction main still 10, the first condenser 30 and the 3rd condenser 50 and the 3rd condenser
Switch valve is equipped with connecting line between 50 and reaction main still 10.
After the completion reaction of main still 10 is reacted, the secondary kettle 20 of reaction is heated up, during by the use of reaction pair kettle 20 as main reaction kettle,
By the secondary kettle 20 of first condenser 30 in embodiment 1 and reaction, the second condenser 40 and the 3rd condenser 50 and the 3rd
Switch valve on connecting line between condenser 50 and reaction main still 10 is turned off.And by the second condenser 40 with reacting
Connecting line between main still 10, the first condenser 30 and the 3rd condenser 50 and the 3rd condenser 50 and reaction main still 10
Switch valve is opened.
The secondary kettle 20 of reaction reacts the gas that main still 20 is connected in series, is overflowed from the secondary kettle 20 of reaction as main reaction kettle
Sequentially pass through the condensing reflux of the second condenser 40, reaction main still 10 assisted reaction absorb, the condensing reflux of the first condenser 30 and the
The condensing reflux of three condenser 50.
Specific reaction is as follows：
Acetic acid and catalyst sulphur are filled in the secondary kettle 10 of reaction, chlorine and acetic acid are anti-under the catalytic action of high temperature and sulphur
Product monoxone and byproduct hydrogen chloride should be generated；Because the temperature of the secondary kettle 20 of reaction is at 70~110 DEG C, so having gas
(hydrogen chloride 60%, sulfur dioxide 0.2%, chlorine 32% and acetic acid vapor 7% and other gases 0.8%) overflows；
The gas overflowed from the secondary gas outlet of kettle 20 of the reaction enters the second condenser 40, is condensed into through the second condenser 40
Liquid (liquid chlorine and acetic acid) pass back into the secondary kettle 20 of reaction；
The gas (hydrogen chloride, sulfur dioxide, chlorine and acetic acid vapor etc.) overflowed from the gas outlet of the second condenser 40 enters
React in main still 10 and react, reaction main still 10 is in keeping warm mode, so reaction main still 10 can absorb a part of chlorine and second
Acid vapour, the gas (hydrogen chloride, sulfur dioxide, chlorine and acetic acid vapor etc.) overflowed from reaction main still 10 gas outlet enters first
Condenser 30, the liquid (liquid chlorine and acetic acid) condensed through the first condenser 30 is flowed back into reaction main still 10；
The gas (hydrogen chloride, sulfur dioxide, chlorine and acetic acid vapor etc.) overflowed from the gas outlet of the first condenser 30 enters
In 3rd condenser 50, the liquid (liquid chlorine and acetic acid) condensed through the 3rd condenser 50 is passed back into the secondary kettle 20 of reaction；
Gas (hydrogen chloride 96%, acetic acid 3%, the sulfur dioxide 0.2% and other overflowed from the gas outlet of the 3rd condenser 50
Gas 0.8%) enter tail gas absorbing system.
The available gas (chlorine and acetic acid vapor) overflowed from the secondary kettle 20 of reaction sequentially passes through the second condenser 40 and condensed
Backflow, the absorption of reaction main still 10 assisted reaction, the condensing reflux of the first condenser 30 and the condensing reflux of the 3rd condenser 50.By adopting
Two-stage tandem chlorination is used, the secondary kettle 20 of reaction has absorbed part chlorine, shortening can during before as the use of secondary kettle
This point of reaction time.By carrying out multistage absorption to the gas overflowed in the secondary kettle 20 of reaction, the profit of effecting reaction thing is improved
With rate and the purity of accessory substance.And after reaction main still 10 completes reaction, without stopping production, but directly to the secondary kettle 20 of reaction
Heating, by the use of the secondary kettle 20 of reaction as main reaction kettle, shortens the time, improves operating efficiency.
In order to detect the pressure change in the secondary kettle 20 of reaction, and made accordingly according to the pressure value in the secondary kettle 20 of detection reaction
The switching of pressure relief pipe, emergent switching system also increases following structure on the basis of embodiment 1:
Described second enters chlorine pipe 21 provided with the 3rd magnetic valve 23；
The secondary kettle 20 of reaction is provided with the second pressure sensor 22 for detecting its internal pressure；
The signal input part of the controller is also connected with the signal output part of second pressure sensor 22, the control of controller
Output end is also connected with the second emergent bleeder valve 74.
In the secondary kettle 20 of reaction as main reaction kettle, when production of chloroacetic acid system is normally run, the first magnetic valve 51 and the 3rd
Magnetic valve 23 is in normally open, the emergent bleeder valve 74 of the emergent bleeder valve 73, second of the second magnetic valve 13, first, superpressure discharge
Valve 71, vacuum pumping valve 72 and vavuum pump 75 are in normally off.
The specific handover operation of emergent switching system is as follows：
Pressure in the secondary kettle 20 of the detection reaction in real time of second pressure sensor 22.During production of chloroacetic acid system normal reaction,
Pressure value in the secondary kettle 20 of reaction is 0.03~0.05Mpa (not including 0.05Mpa)；When reaction is normal super in the secondary kettle 20 of reaction
Pressure, pressure value is in 0.05~0.07Mpa；And when the first condenser 30 or the 3rd condenser 50 are damaged, chilled brine flow to reaction
In main still 10, or when the second condenser 40 is damaged, chilled brine is flow in the secondary kettle 20 of reaction, can all cause the ammonia and chlorine in salt solution
Gas reacts drastically heat release in acid condition, is timely and effectively passed because traditional jacket reactor can not will react the heat produced
Pass away, cause whole reacting system pressure drastically to raise, pressure value is more than 0.07Mpa.Second pressure sensor 22 will be detected
To the secondary kettle 20 of reaction in pressure value be transferred to controller, controller is PLC.When the pressure value be 0.03~
During 0.05Mpa (not including 0.05Mpa), controller does not make any control operation；When the pressure value is in 0.05~0.07Mpa
When, controller controls the 3rd magnetic valve 23 to close, and the second emergent bleeder valve 74 and superpressure drain valve 71 is opened, in the secondary kettle 20 of reaction
Pressure be directly discharged into tail gas absorbing system, other pipelines are no longer flow through, when the pressure value in the secondary kettle 20 of reaction drops to 0.05Mpa
When following, controller controls the 3rd magnetic valve 23 to open, and the second emergent bleeder valve 74 and superpressure drain valve 71 is closed, and system is recovered
Normal operating conditions；And when the pressure value is more than 0.07Mpa, controller controls the first magnetic valve 51 and the 3rd magnetic valve 23 to close
Close, the first emergent emergent vacuum pumping valve 72 of bleeder valve 74 of bleeder valve 73, second and vavuum pump 75 is opened, the pressure in the secondary kettle 20 of reaction
Power is quickly pumped into accident tail gas absorbing system by vavuum pump 75, it is to avoid system is exploded, until pressure is near in system
Below 0.03Mpa, staff enters maintenance or changes the condenser damaged.
The utility model in system after pressure rise, can automatic switching-over pipeline valve, realize straight to system pressure source
Connect pressure release, time short efficiency high；Also, in order to further improve the collection of accessory substance, the secondary normal reaction superpressure of kettle 20 of reaction
When (0.05~0.07Mpa), pressure in the secondary kettle 20 of reaction is set directly to leak into tail gas absorbing system, when improper superpressure in system
When (more than 0.07Mpa), the gas in two reactors is quickly discharged into accident tail gas absorbing system by vavuum pump, realizes to pressure
The direct pressure release in power source, is prevented effectively from accident.
When there is chlorine leakage, chlorine leak detection probe 80 detects chlorine, transmits the signal to controller, controls
Device processed also controls the 3rd magnetic valve 23 to close in addition to the valve described in control switches in embodiment 1.
Embodiment 3
Difference from Example 1 is that the end of the emergency line 70 is provided with pressure sensor 76, and the pressure is passed
The signal output part of sensor 76 connects the signal input part of controller, the control output end connection warning device of the controller.
When production of chloroacetic acid system just produces reaction, the first emergent bleeder valve 73 should be at closed mode, and pressure sensor 76 can be examined
Survey whether the first emergent bleeder valve 73 closes tightly, it is to avoid reacting gas is directly discharged from emergency line 70, causes wastage of material.When
When the pressure value that pressure sensor 76 is transferred to controller is more than 0, illustrate there is gas to pass through in emergency line 70, controller will
Alarm activation is controlled, warning staff repairs to the first emergent bleeder valve 73.Wherein, warning device is acousto-optic report
Alert device.
Embodiment 4
Difference from Example 2 is that the end of the emergency line 70 is provided with pressure sensor 76, and the pressure is passed
The signal output part of sensor 76 connects the signal input part of controller, the control output end connection warning device of the controller.
When production of chloroacetic acid system just produces reaction, the first emergent emergent bleeder valve 74 of bleeder valve 73 and second should be at closed mode,
Pressure sensor 76 can detect whether the first emergent emergent bleeder valve 74 of bleeder valve 73 and second closes tightly, it is to avoid reacting gas
Directly discharged from emergency line 70, cause wastage of material.When the pressure value that pressure sensor 76 is transferred to controller is more than 0,
Illustrate there is gas to pass through in emergency line 70, controller will control alarm activation, warning staff is emergent to first
The emergent bleeder valve 74 of bleeder valve 73 and second is repaired.
Wherein, warning device is audible-visual annunciator.
It the above is only preferred embodiment of the present utility model, anyone is according to content of the present utility model to the utility model
A little simple modification, deformation and the equivalent substitution made each falls within protection domain of the present utility model.
Claims (5)
1. a kind of chloroacetate reaction kettle system of accident disposal, including production of chloroacetic acid system, it is characterised in that：Also including should
Anxious switching system；
The production of chloroacetic acid system includes reaction main still (10), the secondary kettle (20) of reaction, one-level condensing circuit, B-grade condensation loop
With three-level condensing circuit；
The entrance connection of the reaction main still (10) is oriented to be passed through the first of chlorine inside it and enters chlorine pipe (11)；
The one-level condensing circuit includes the first condenser (30), and the gas overflowed from described reaction main still (10) gas outlet enters
First condenser (30), the liquid being condensed into through the first condenser (30) is passed back into reaction main still (10), forms one-level cold
Solidifying loop；
The B-grade condensation loop includes the second condenser (40), and the gas overflowed from the first condenser (30) gas outlet enters anti-
It should be reacted in secondary kettle (20), the gas overflowed from secondary kettle (20) gas outlet of reaction enters the second condenser (40), through the second condensation
The liquid of device (40) condensation flows back into the secondary kettle (20) of reaction and forms B-grade condensation loop；
The three-level condensing circuit includes the 3rd condenser (50), and the gas overflowed from the second condenser (40) gas outlet enters the
In three condensers (50), the liquid condensed through the 3rd condenser (50) is passed back into reaction main still (10), is formed three-level and is condensed back
Road；
The gas overflowed from the 3rd condenser (50) gas outlet enters tail gas absorbing system；
First condenser (30) and the secondary kettle (20) of reaction, the second condenser (40) and the 3rd condenser (50) and the 3rd are cold
Switch valve is equipped with connecting line between condenser (50) and reaction main still (10)；
The emergent switching system includes emergency line (70) and controller；
Going out in reaction main still (10) on the gas outlet of emergency line (70) the coupled reaction main still (10), emergency line (70)
Provided with the first emergent bleeder valve (73) at gas port, the gas outlet of the secondary kettle (20) of reaction is parallel to emergency line (70), and instead
The pipeline between the gas outlet of secondary kettle (20) and emergency line (70) is answered provided with the second emergent bleeder valve (74)；The emergent pipe
The outlet on road (70) separates two branch roads in parallel, wherein a branch road is provided with superpressure drain valve (71), and the branch way outlet
Connected with tail gas absorbing system, another branch road is provided with vacuum pumping valve (72) and vavuum pump (75), and the branch way outlet and thing
Therefore tail gas absorbing system is connected；
3rd condenser (50) is provided with the first magnetic valve (51) between gas outlet and tail gas absorbing system；
Described first enters chlorine pipe (11) provided with the second magnetic valve (13)；
The reaction main still (10) is provided with the first pressure sensor (12) for detecting its internal pressure；
The signal output part of the signal input part connection first pressure sensor (12) of the controller, the control output of controller
End connects the first magnetic valve (51), the second magnetic valve (13), the first emergent bleeder valve (73), superpressure drain valve (71), taken out respectively
Vacuum valve (72) and vavuum pump (75).
2. a kind of chloroacetate reaction kettle system of accident disposal according to claim 1, it is characterised in that：The reaction
The entrance connection of secondary kettle (20) is oriented to be passed through the second of chlorine inside it and enters chlorine pipe (21)；
The gas outlet of second condenser (40) is also connected with reacting the bottom of main still (10) inner chamber, from the second condenser (40)
The gas that gas outlet is overflowed, which enters in reaction main still (10), to react；
The gas outlet of first condenser (30) is connected with the air inlet of the 3rd condenser (50), is gone out from the first condenser (30)
The gas that gas port overflows enters in the 3rd condenser (50), and the condensation outlet end of the 3rd condenser (50) is with reacting secondary kettle (20) even
Logical, the liquid condensed through the 3rd condenser (50) is flowed back into the secondary kettle (20) of reaction；
Second condenser (40) and reaction main still (10), the first condenser (30) and the 3rd condenser (50) and the 3rd are cold
Switch valve is equipped with connecting line between condenser (50) and reaction main still (10)；
Described second enters chlorine pipe (21) provided with the 3rd magnetic valve (23)；
The secondary kettle (20) of reaction is provided with the second pressure sensor (22) for detecting its internal pressure；
The signal input part of the controller is also connected with the signal output part of second pressure sensor (22), and the control of controller is defeated
Go out end and be also connected with the second emergent bleeder valve (74).
3. a kind of chloroacetate reaction kettle system of accident disposal described in as requested 1 or 2, it is characterised in that：It is described emergent
The end of pipeline (70) is provided with pressure sensor (76), and the signal output part of the pressure sensor (76) connects the letter of controller
Number input, the control output end connection warning device of the controller.
4. a kind of chloroacetate reaction kettle system of accident disposal according to claim 3, it is characterised in that：The alarm
Device is audible-visual annunciator.
5. a kind of chloroacetate reaction kettle system of accident disposal according to claim 1, it is characterised in that：The reaction
Main still (10) or secondary kettle (20) side of reaction are provided with chlorine leak detection probe (80), and the chlorine leak detection is popped one's head in (80)
Signal output part connects the signal input part of controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720274954.0U CN206587734U (en) | 2017-03-21 | 2017-03-21 | A kind of chloroacetate reaction kettle system of accident disposal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720274954.0U CN206587734U (en) | 2017-03-21 | 2017-03-21 | A kind of chloroacetate reaction kettle system of accident disposal |
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| Publication Number | Publication Date |
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| CN206587734U true CN206587734U (en) | 2017-10-27 |
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ID=60123667
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720274954.0U Withdrawn - After Issue CN206587734U (en) | 2017-03-21 | 2017-03-21 | A kind of chloroacetate reaction kettle system of accident disposal |
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| CN (1) | CN206587734U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106669564A (en) * | 2017-03-21 | 2017-05-17 | 河北东华舰化工有限公司 | Emergency treatment system for chloroacetic acid reaction kettle accidents |
| CN107670629A (en) * | 2017-11-09 | 2018-02-09 | 大丰鑫源达化工有限公司 | A kind of device that salt is analysed using tail gas acid gas |
| CN109035109A (en) * | 2018-07-17 | 2018-12-18 | 江苏安泰安全技术有限公司 | A kind of acidity toxic gas leakage emergent treatment system |
| CN112999849A (en) * | 2021-02-26 | 2021-06-22 | 南通星球石墨股份有限公司 | Processing device for chlorine leakage accident |
-
2017
- 2017-03-21 CN CN201720274954.0U patent/CN206587734U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106669564A (en) * | 2017-03-21 | 2017-05-17 | 河北东华舰化工有限公司 | Emergency treatment system for chloroacetic acid reaction kettle accidents |
| CN106669564B (en) * | 2017-03-21 | 2018-09-28 | 河北东华舰化工有限公司 | A kind of chloroacetate reaction kettle system of accident disposal |
| CN107670629A (en) * | 2017-11-09 | 2018-02-09 | 大丰鑫源达化工有限公司 | A kind of device that salt is analysed using tail gas acid gas |
| CN107670629B (en) * | 2017-11-09 | 2023-08-22 | 大丰鑫源达化工有限公司 | Device for separating salt from acid gas by utilizing tail gas |
| CN109035109A (en) * | 2018-07-17 | 2018-12-18 | 江苏安泰安全技术有限公司 | A kind of acidity toxic gas leakage emergent treatment system |
| CN112999849A (en) * | 2021-02-26 | 2021-06-22 | 南通星球石墨股份有限公司 | Processing device for chlorine leakage accident |
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