CN207085927U - The double kettle series connection synthesis systems of high-precision temperature monitoring chloracetyl chloride - Google Patents

Abstract

A kind of double kettle series connection synthesis systems of high-precision temperature monitoring chloracetyl chloride, including the first chlorination tank, the first condensing unit, the second chlorination tank, the second condensing unit, the 3rd condensing unit, temperature monitoring unit, chlorine breather pipe；First chlorination tank, the second chlorination tank structure are identical, and first condensing unit, the second condensing unit structure are identical；Gas caused by first chlorination tank is passed through reactant of first condensing unit as the second chlorination tank by the utility model, to make full use of unreacted chlorine and intermediate；Logical chlorine speed can be improved compared with one-pot, improves response intensity, shortens the reaction time, is followed closely by installing tantalum in enamel thermometric cover, the temperature energy Fast-Balance of temperature element and the reactant in kettle, solves the defects of response time is long, measurement error is big；Chlorine breather pipe corresponds to the Position Design of suitable temperature element by the path of chlorine, enables that temperature element is timely, the actual response temperature in accurate chlorination tank.

Description

The double kettle series connection synthesis systems of high-precision temperature monitoring chloracetyl chloride

Technical field

Chloracetyl chloride production equipment technology is the utility model is related to, more particularly to a kind of high-precision temperature monitoring chloroethene The double kettle series connection synthesis systems of acyl chlorides.

Background technology

Chloracetyl chloride Reaction Mechanisms are complicated, during generate many lower boiling intermediates, such as chloroacetic chloride, low boiling The intermediate of point is the factor that course of reaction needs important control, is cooled back in batch building-up process by kettle top condenser Receive, synthesis is divided into initial stage, mid-term and latter stage three phases, has in concentration control of the different stages of reaction to intermediate different It is required that existing chloracetyl chloride classics synthesis technique uses one-pot technique, can not be adjusted the differential responses stage by condensation number To the demand of intermediate, therefore it can not be made full use of for middle product chloroacetic chloride in building-up process, and building-up process efficiency is low.

In addition, the temperature survey under chemical process deep-etching operating mode is a more scabrous problem.In order to reduce Equipment investment deep-etching equipment typically all selects glass-lined equipment；Enamel standard device is equipped with bushing type partition temperature survey Sleeve pipe, it is thermometric response time length the shortcomings that the temperature measuring equipment, measurement temperature value is relatively low, and less production is required to temperature difference control Process can not meet to require；The gas-solid of chloracetyl chloride chlorination tank course of reaction experience, the change of three kinds of phases of gas-liquid-solid and gas-liquid, and Chlorination tank is not provided with agitator, in kettle after two benches when promote to form liquid circulation by chlorine, three kinds of phases are without churned mechanically The change in location of temperature survey is obvious in operating process, and existing thermometric mode can not take into account the measurement of three phase section temperature, and not Actual response temperature in timely, the accurate chlorination tank of energy.

The content of the invention

In view of this, for above-mentioned deficiency, it is necessary to propose that one kind can make full use of middle product, combined coefficient high, and energy Meet that temperature difference control requires small, can accurately reflect the high-precision temperature monitoring chloracetyl of actual response temperature in reactor The double kettle series connection synthesis systems of chlorine.

A kind of double kettle series connection synthesis systems of high-precision temperature monitoring chloracetyl chloride, including the first chlorination tank, the first condensation list Member, the second chlorination tank, the second condensing unit, the 3rd condensing unit, temperature monitoring unit, chlorine breather pipe；First chlorination Kettle, the second chlorination tank structure are identical, and first condensing unit, the second condensing unit structure are identical；The first chlorination tank bag Include the first retort and be arranged in the first retort the first reactant entrance, the first middle product outlet, the first reflux inlet, First liquid-phase outlet；First condensing unit include the first drainer and be arranged on the first drainer first condense into Mouth, the first condensate outlet；Second chlorination tank includes the second retort and the second reactant being arranged in the second retort Entrance, the second middle product outlet, the outlet of the second reflux inlet, second liquid phase；The drainer of second condensing unit second and set Put includes the second condensation entrance, the second condensate outlet on the second drainer；First reactant entrance, the second reactant Entrance is connected by the No.1 gate valve, No. two gate valves that are correspondingly arranged on pipeline and pipeline with reactant supply centre respectively, and described One middle product outlet is connected by No. three gate valves set on pipeline and pipeline with the first condensation entrance, first condensate outlet Connected by No. four gate valves set on pipeline and pipeline with the second reactant entrance, the second middle product outlet passes through pipeline And No. five gate valves set on pipeline connect with the second condensation entrance, second condensate outlet is anti-by No. six gate valves and first Thing entrance is answered to connect；3rd condensing unit includes the 3rd drainer and the gas phase entrance, the U-shaped that are arranged on the 3rd drainer Pipe, gaseous phase outlet；The gas phase entrance respectively by No. seven gate valves being correspondingly arranged on pipeline and pipeline, No. eight gate valves it is corresponding with First condensate outlet, the connection of the second condensate outlet, U-tube are arranged at the lower section of the 3rd condensing unit, and one end of U-tube passes through pipe Road connects with gas phase entrance, the other end of U-tube No. nine gate valves, No. ten gate valves by being correspondingly arranged on pipeline and pipeline respectively Connected with the first reflux inlet, the second reflux inlet；The gaseous phase outlet is used for the discharge of waste gas；First liquid-phase outlet, Second liquid phase exports the discharge for being respectively used to the first chlorination tank, the second chlorination tank chlorated liquid, first liquid-phase outlet, the second liquid Mutually export the corresponding gate valve of setting ride on Bus No. 11 respectively, ten No. two gate valves；It is provided with first chlorination tank, the second chlorination tank Temperature monitoring unit, chlorine breather pipe；The temperature monitoring unit includes enamel thermometric cover, temperature element, tantalum nail；It is described to ward off Glass thermometric cover is a hollow body, and its one end is closed, another end opening, on tube wall of the body close to blind end The through hole of a setting internal thread is provided with, the temperature element is built in the through hole of the side connected with tube cavity, described One end of tantalum nail is screwed into through hole on the outside of body, and to be in contact with temperature element, one end of tantalum nail is also connected with through hole whorl, tantalum The other end of nail leaks outside in the outside of enamel thermometric cover；The enamel thermometric cover is from the first chlorination tank or the second chlorination tank Upper vertical is inserted in its inner chamber, and the enamel thermometric cover open at one end is placed on the outside of the first chlorination tank or the second chlorination tank, It is closed one end and is placed on the inside of the first chlorination tank or the second chlorination tank；The enamel thermometric cover is installed on the first chlorination tank or The position specified in dichloride kettle, so that the distance of the temperature element and the first chlorination tank or the second chlorination tank inner left wall is The ∕ 3 of 1 ∕ 4~1 of the diameter of first chlorination tank or the second chlorination tank, the temperature element and the first chlorination tank or the second chlorination tank The distance of bottom is 1 ∕ 3 of the cavity heights of the first chlorination tank or the second chlorination tank, the chlorine breather pipe and the enamel Thermometric cover relative position is set, and its one end connects with first reactant entrance or the second reactant entrance, and the other end is vertical The first chlorination tank or the second chlorination tank are inserted close to the position of bottom, the chlorine breather pipe is close to the first chlorination tank bottom or One end bending in dichloride bottom portion is set, so that the chlorine of outflow is put down with the first chlorination tank or the second chlorination tank inner chamber bottom surface OK.

Preferably, the temperature element is platinum resistance temperature sensor.

Preferably, be provided with heat conduction rubber cushion between the temperature element and tantalum nail, the temperature element, heat conduction rubber cushion, Tantalum follows closely integrally connected.

Preferably, first condensing unit, the second condensing unit form side by side by two structure identical condensers.

Preferably, ten No. three are provided with the pipeline between the No.1 gate valve and No. two gate valves and reactant supply centre Gate valve；Ten No. four gate valves are installed on the pipeline between first reactant entrance and No.1 gate valve, it is anti-described second Answer and ten No. five gate valves are installed on the pipeline between thing entrance and No. two gate valves；In the No.1 gate valve and ten No. four gate valves and six Ten No. six gate valves are installed on pipeline between number gate valve；Between No. two gate valves and ten No. five gate valves and No. four gate valves Ten No. seven gate valves are installed on pipeline.

Preferably, first chlorination tank, the outer wall of the second chlorination tank, which are provided with, can be passed through steam and for described first Chlorination tank, the chuck of the second chlorination tank heating, it is connected by pipeline with the low pressure air pressure vapour source of outside respectively, and in its pipe The first control valve, the second control valve are correspondingly separately installed with road, first control valve and the first chlorination tank chuck it Between pipeline on be also equipped with ten No. eight gate valves；On pipeline between second control valve and the chuck of the second chlorination tank also Ten No. nine gate valves are installed.

Preferably, the first temperature sensor, first pressure sensor are installed on first chlorination tank；Described Second temperature sensor, second pressure sensor are installed on dichloride kettle；In the reactant supply centre and ten No. three gate valves Between be sequentially installed with flowmeter, regulating valve, the 3rd control valve；First temperature sensor and the first control valve, the 3rd control Valve processed is electrically connected with, and the interlocked control between the first control valve, the 3rd control valve；The second temperature sensor and the second control Valve processed, the 3rd control valve are electrically connected with, and the interlocked control between the second control valve, the 3rd control valve.

By the way that gas caused by the first chlorination tank to be used as to the reactant of the second chlorination tank by the first condensing unit, to fill Divide and utilize unreacted chlorine and intermediate；Logical chlorine speed can be improved compared with one-pot, improves response intensity, when shortening reaction Between, the generation of side reaction thing is reduced while reducing the second chlorination tank reaction temperature.In addition it can adjust the temperature of the first condensing unit Degree, control the condensation number of intermediate to adjust the differential responses stage to the demand of intermediate, reaction is carried out at optimum conditions； It can be required in generating process according to the reaction of the first chlorination tank, condense the two-way adjustment of intermediate, meet production process pair Quality, yield and effective control of time.

Followed closely by installing tantalum in enamel thermometric cover, the temperature energy Fast-Balance of temperature element and the reactant in kettle, solution Determine the defects of response time is long, measurement error is big；Chlorine breather pipe corresponds to suitable temperature element by the path of chlorine Position Design, enables that temperature element is timely, the actual response temperature in accurate chlorination tank.

Brief description of the drawings

Fig. 1 is the structural representation that the high-precision temperature monitors the double kettles series connection synthesis systems of chloracetyl chloride.

Fig. 2 is the structural representation of the temperature monitoring unit.

Fig. 3 is the close-up schematic view of the temperature monitoring unit.

In figure：First chlorination tank 10, the first reactant entrance 11, the gate valve of gate valve 112,13 of No.1 gate valve 111, six 113rd, ten No. four gate valves, 114, ten No. six gate valves 115, the first middle product export 12, No. three gate valves 121, the first reflux inlet 13, No. nine gate valves 131, the first liquid-phase outlet 14, ride on Bus No. 11 gate valve 141,15, ten No. eight gate valves 16 of the first control valve, the first temperature pass Sensor 17, first pressure sensor 18, flowmeter 19, regulating valve 110, the 3rd control valve 120, the first condensing unit 20, first Condense entrance 21, the first condensate outlet 22, the second chlorination tank 30, the gate valve of gate valve 311, four of the second reactant entrance 31, two 312nd, ten No. five gate valves, 313, ten No. seven gate valves 314, the second middle product export 32, No. five gate valves 321, the second reflux inlet 33, No. ten gate valves 331, second liquid phase export 34, ten No. two gate valves 341,35, ten No. nine gate valves 36 of the second control valve, second temperature and passed Sensor 37, second pressure sensor 38, the second condensing unit 40, second condensation entrance 41, the condensation of the second condensate outlet the 42, the 3rd Unit 50, gas phase entrance 51, U-tube 52, the gate valve 54, eight of gaseous phase outlet 53, seven gate valve 55, temperature monitoring unit 60, ward off Glass thermometric cover 61, through hole 611, temperature element 62, tantalum nail 63, heat conduction rubber cushion 64, chlorine breather pipe 70.

Embodiment

, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are some embodiments of the utility model, for this For the those of ordinary skill of field, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other Accompanying drawing.

Referring to Fig. 1 to Fig. 3, the utility model embodiment provides a kind of double kettle series connection of high-precision temperature monitoring chloracetyl chloride Synthesis system, including the condensation of the first chlorination tank 10, the first condensing unit 20, the second chlorination tank 30, the second condensing unit the 40, the 3rd Unit 50, temperature monitoring unit 60, chlorine breather pipe 70；First chlorination tank 10, the structure of the second chlorination tank 30 are identical, the first condensation Unit 20, the structure of the second condensing unit 40 are identical；First chlorination tank 10 includes the first retort and is arranged in the first retort The first reactant entrance 11, the first middle product export the 12, first reflux inlet 13, the first liquid-phase outlet 14；First condensation is single The first condensation entrance 21, the first condensate outlet 22 that member 20 includes the first drainer and is arranged on the first drainer；Second chlorine Change the second reactant entrance 31, the second middle product outlet 32 that kettle 30 includes the second retort and be arranged in the second retort, Second reflux inlet 33, second liquid phase outlet 34；Second condensing unit 40 includes the second drainer and is arranged on the second drainer On second condensation entrance 41, the second condensate outlet 42；First reactant entrance 11, the second reactant entrance 31 pass through pipe respectively 111, No. two gate valves 311 of the No.1 gate valve being correspondingly arranged on road and pipeline connect with reactant supply centre, the first middle product outlet 12 No. three gate valves 121 by being set on pipeline and pipeline connect with the first condensation entrance 21, and the first condensate outlet 22 passes through pipe No. four gate valves 312 set on road and pipeline connect with the second reactant entrance 31, the second middle product outlet 32 by pipeline and No. five gate valves 321 set on pipeline connect with the second condensation entrance 41, and the second condensate outlet 42 on pipeline and pipeline by setting No. six gate valves 112 put connect with the first reactant entrance 11；3rd condensing unit 50 includes the 3rd drainer and is arranged on the Gas phase entrance 51, U-tube 52, gaseous phase outlet 53 on three drainers；Gas phase entrance 51 is respectively by corresponding on pipeline and pipeline 54, No. eight gate valves 55 of No. seven gate valves set are corresponding to be connected with the first condensate outlet 22, the second condensate outlet 42, and U-tube 52 is set Be placed in the lower section of the 3rd condensing unit 50, one end of U-tube 52 is connected by pipeline with gas phase entrance 51, U-tube 52 it is another Hold the reflux inlet 13, second of 131, No. ten gate valves of No. nine gate valves 331 and first by being correspondingly arranged on pipeline and pipeline respectively Reflux inlet 33 connects；Gaseous phase outlet 53 is used for the discharge of waste gas；First liquid-phase outlet 14, second liquid phase outlet 34 are used for first The discharge of chlorination tank 10, the chlorated liquid of the second chlorination tank 30, the first liquid-phase outlet 14, second liquid phase outlet 34 correspond to and set ten respectively 141, ten No. two gate valves 341 of No.1 gate valve；Temperature monitoring unit is provided with the first chlorination tank 10, the second chlorination tank 30 60th, chlorine breather pipe 70；Temperature monitoring unit 60 includes enamel thermometric cover 61, temperature element 62, tantalum nail 63；Enamel thermometric Set 61 is a hollow body, and its one end is closed, another end opening, and being provided with one on tube wall of the body close to blind end sets The through hole 611 of internal thread is put, temperature element 62 is built in the through hole 611 of the side connected with tube cavity, and the one of tantalum nail 63 End is screwed into through hole 611 on the outside of body, and to be in contact with temperature element 62, one end of tantalum nail 63 is also threadedly coupled with through hole 611； The other end of tantalum nail 63 leaks outside in the outside of enamel thermometric cover 61；Enamel thermometric cover 61 is from the first chlorination tank 10 or the second chlorine The Upper vertical for changing kettle 30 is inserted in its inner chamber, and the open at one end of enamel thermometric cover 61 is placed in the first chlorination tank 10 or the second chlorination The outside of kettle 30, it is closed one end and is placed in the first chlorination tank 10 or the inner side of the second chlorination tank 30；Enamel thermometric cover 61 is installed on The position specified in the chlorination tank 30 of monochlor(in)ate kettle 10 or second, so that the chlorination tank 10 of temperature element 62 and first or the second chlorination tank The distance of 30 inner left walls is the ∕ 3 of 1 ∕ 4~1 of the diameter of the first chlorination tank 10 or the second chlorination tank 30, temperature element 62 and first The distance of the bottom of the chlorination tank 30 of chlorination tank 10 or second is 1 ∕ of the cavity heights of the first chlorination tank 10 or the second chlorination tank 30 3, chlorine breather pipe 70 is set with the relative position of enamel thermometric cover 61, its one end and the first reactant entrance 11 or the second reaction Thing entrance 31 connects, and the other end is inserted vertically into the first chlorination tank 10 or the second chlorination tank 30 close to the position of bottom, chlorine ventilation Pipe 70 bends close to one end of the bottom of the first chlorination tank 10 or the bottom of the second chlorination tank 30 and set, so that the chlorine and first of outflow Chlorination tank 10 or second chlorination tank, 30 inner chamber bottom surfaces are parallel.

In a specific embodiment, it is main still with the first chlorination tank 10, the second chlorination tank 30 is the technological process of secondary kettle It is as follows：No.1 gate valve 111 is opened, No. two gate valves 311 are closed, and chlorine enters from the first reactant entrance 11 is equipped with liquid phase chloroethene In sour, solid phase sulphur the first chlorination tank 10, the relatively low intermediate acetyl chlorine of caused boiling point, unreacted are complete in course of reaction Chlorine and the hydrogen chloride of reaction production enter the first condensing unit 20 from first middle the 12, first condensation of product outlet entrance 21, by U-tube 52 is connected with the first reflux inlet 13, gas phase can be prevented thus to be directly entered the 3rd condensing unit 50, into first Chlorine, chloroacetic chloride and the hydrogen chloride of condensing unit 20 are after supercooling, and liquefied chloroacetic chloride is again from the first condensation entrance 21, first Continue to react in middle the first chlorination tank 10 of return of product outlet 12；Had not enough time in first condensing unit 20 liquefied chloroacetic chloride, Chlorine and hydrogen chloride flow out from the first condensate outlet 22, are entered by No. four gate valves 312 of opening from the second reactant entrance 31 Second chlorination tank 30 continues to react, and the control temperature of the second chlorination tank 30 is less than the first chloridising 10, so that it is more conducive to chloracetyl Chloracetyl chloride is produced with chlorine reaction, a small amount of chloroacetic chloride, chlorine and hydrogen chloride are again among second in the second chlorination tank 30 Product outlet the 32, second condensation entrance 41 enters the second condensing unit 40, into chlorine, chloroacetic chloride and the chlorine of the second condensing unit 40 Change hydrogen after supercooling, liquefied chloroacetic chloride returns to the second chlorination tank from the second condensation entrance 41, the first middle product outlet 32 again Continue to react in 30；Liquefied chloroacetic chloride, chlorine and hydrogen chloride are had not enough time in second condensing unit 40 from the second condensate outlet 42 outflows, No. six gate valves 112 and No. seven gate valves 54 are closed, and gas phase chloroacetic chloride, chlorine and hydrogen chloride are from gas phase entrance 51 enter the 3rd condensing unit 50, and now chloroacetic chloride further liquefies and passes through U-tube 52 from gas phase entrance 51, are returning to first Chlorination tank 10 continues to react, and micro chlorine, hydrogen chloride are discharged from gaseous phase outlet 53.

Similarly, it with the second chlorination tank 30 can also be main still, the first chlorination tank 10 is that secondary kettle carries out identical technological process； First condensing unit 20, the first condensing unit 40, the outer wall of the first condensing unit 50 are equipped with the cooling folder of circulation cooling medium Set, can control the first condensing unit 20, the first condensing unit 40, the first condensing unit 50 to cool down by force by adjusting cooling medium Degree.

The beneficial effects of the utility model are, gas caused by the first chlorination tank 10 is made by the first condensing unit 20 For the reactant of the second chlorination tank 30, to make full use of unreacted chlorine and intermediate；Logical chlorine speed can be improved compared with one-pot Degree, response intensity is improved, shorten the reaction time, the life of side reaction thing is reduced while reducing the second 30 reaction temperature of chlorination tank Into.In addition the temperature of the first condensing unit 20 is can adjust, controls the condensation number of intermediate to adjust the differential responses stage to intermediate Demand, reaction is carried out at optimum conditions；The cooling of the first condensing unit 20 is closed in the last stage reaction of the first chlorination tank 10 to make With the chlorine in the unreacting material, intermediate and liquid phase of the first chlorination tank 10, hydrogen chloride being evaporated, in the second chlorination Made full use of in kettle 30, improve reaction speed, shorten the reaction time；Can be according to the reaction of the first chlorination tank 10 in generating process It is required that condense the two-way adjustment of intermediate, meet effective control of the production process to quality, yield and time.

Tantalum nail 63 has decay resistance, good heat conductivility；In present embodiment, by enamel thermometric cover 61 Tantalum nail 63 is installed, the temperature energy Fast-Balance of temperature element 62 and the reactant in kettle, solves response time length, measurement error The defects of big；Chlorine breather pipe 70 corresponds to the Position Design of suitable temperature element 62 by the path of chlorine, makes temperature element Actual response temperature in 62 timely, the accurate chlorination tanks of energy.

Referring to Fig. 3, further, temperature element 62 is platinum resistance temperature sensor.

Platinum resistance temperature sensor is that most accurate and most stable of temperature sensor, its linearity are better than thermocouple and temperature-sensitive Resistance, therefore platinum resistance temperature sensor is best suitable for having strict demand, the significantly less critical application field of price to precision.

Referring to Fig. 3, further, heat conduction rubber cushion 64 is provided between temperature element 62 and tantalum nail 63, temperature element 62, is led Hot glue pad 64, tantalum follow closely 63 integrally connecteds.

Heat conduction rubber cushion 64 is high-performance gap filling Heat Conduction Material, and heat conduction rubber cushion 64 has good viscosity, flexibility, good Good compression performance and there is excellent pyroconductivity；In present embodiment, heat conduction rubber cushion 64 can accelerate tantalum nail 63 with surveying Heat transfer between warm element 62；And can realizes the flexible connection between tantalum nail 63 and temperature element 62.

Referring to Fig. 1, further, the first condensing unit 20, the second condensing unit 40 are by two structure identical condensers Form side by side.

Single cooling unit is limited to the limitation of heat exchange area, it is impossible to meets that condensation requires, on the one hand connects as described above The mode of condenser further improves cooling effect, on the other hand as in present embodiment, by way of condenser arranged side by side come Improve cold effect.

Referring to Fig. 1, further, pacify on the pipeline between No.1 gate valve 111 and No. two gate valves 311 and reactant supply centre Equipped with ten No. three gate valves 113；Ten No. four gate valves are installed on the pipeline between the first reactant entrance 11 and No.1 gate valve 111 114, ten No. five gate valves 313 are installed on the pipeline between the second reactant entrance 31 and No. two gate valves 311；In No.1 gate valve Ten No. six gate valves 115 are installed on the pipeline between 111 and ten No. four gate valves 114 and No. six gate valves 112；In No. two gate valves 311 Ten No. seven gate valves 314 are installed on the pipeline between ten No. five gate valves 313 and No. four gate valves 312.

Single gate valve is likely to occur interior leakage and produces harmful effect to system in system, uses bivalve to improve valve pass Reliability after closing, such as it is normally opened close to first of chlorination tank, the second valve below is the gate valve gate valve that normal use opens and closes, Reason is that the sealing surface of valve element is possible to wear after valve often opens and closes, the not dead phenomenon in the pass for causing valve to be likely to occur, this When, the pipeline being connected with chlorination tank is handled if desired, and gate valve is shut into the overhaul plan in order to system below, so, For first banister because being not frequently used, the sealing surface of the valve element of valve should be reliable, can be shut, and is advantageous to The maintenance of system below.

Referring to Fig. 1, further, the first chlorination tank 10, the outer wall of the second chlorination tank 30 is provided with can be passed through steam and be First chlorination tank 10, the chuck of the second chlorination tank 30 heating, it is connected by pipeline with the low pressure air pressure vapour source of outside respectively, And the first control valve 15, the second control valve 35 are correspondingly separately installed with its pipeline, in the first control valve 15 and the first chlorination Ten No. eight gate valves 16 are also equipped with pipeline between the chuck of kettle 10；In the second control valve 35 and the chuck of the second chlorination tank 30 Between pipeline on be also equipped with ten No. nine gate valves 36.

Referring to Fig. 1, further, the first temperature sensor 17, first pressure sensor are installed on the first chlorination tank 10 18；Second temperature sensor 37, second pressure sensor 38 are installed on the second chlorination tank 30；In reactant supply centre and ten Flowmeter 19, regulating valve 110, the 3rd control valve 120 are sequentially installed between No. three gate valves 113；First temperature sensor 17 with First control valve 15, the 3rd control valve 120 are electrically connected with, and control is interlocked between the first control valve 15, the 3rd control valve 120 System；Second temperature sensor 37 is electrically connected with the second control valve 35, the 3rd control valve 120, and with the second control valve the 35, the 3rd Interlocked control between control valve 120.

So-called interlocked control is that a certain parameter reaches setting or a certain equipment is opened, stopped or during open and close, linkage or locking pair The control of another equipment；In present embodiment, such as surpass 1 degree, system alarm, 2 degree of overtemperature, control system will the first control valve of cut-out 15 or second control valve 35 or the 3rd control valve 120, to reduce the temperature of chlorination tank, or stop the addition of reactant, wait After system recovers normal, state that control system is automatically restored to before above-mentioned cut-out.

Module or unit in the utility model embodiment device can be merged, divide and deleted according to being actually needed Subtract.

Above disclosed is only the utility model preferred embodiment, can not limit the utility model with this certainly Interest field, one of ordinary skill in the art will appreciate that realize all or part of flow of above-described embodiment, and according to this reality The equivalent variations made with new claim, still fall within the scope that utility model is covered.

Claims (7)

1. A kind of 1. double kettle series connection synthesis systems of high-precision temperature monitoring chloracetyl chloride, it is characterised in that：Including the first chlorination tank, One condensing unit, the second chlorination tank, the second condensing unit, the 3rd condensing unit, temperature monitoring unit, chlorine breather pipe；It is described First chlorination tank, the second chlorination tank structure are identical, and first condensing unit, the second condensing unit structure are identical；Described first Chlorination tank includes the first retort and the first reactant entrance being arranged in the first retort, the first middle product outlet, first Reflux inlet, the first liquid-phase outlet；First condensing unit includes the first drainer and be arranged on the first drainer the One condensation entrance, the first condensate outlet；Second chlorination tank includes the second retort and be arranged in the second retort the Two reactant entrances, the second middle product outlet, the outlet of the second reflux inlet, second liquid phase；Second condensing unit includes the Two drainers and the second condensation entrance, the second condensate outlet being arranged on the second drainer；First reactant entrance, Two reactant entrances are connected by the No.1 gate valve, No. two gate valves and reactant supply centre that are correspondingly arranged on pipeline and pipeline respectively Logical, the first middle product outlet condenses entrance with first by No. three gate valves set on pipeline and pipeline and connected, and described the One condensate outlet is connected by No. four gate valves set on pipeline and pipeline with the second reactant entrance, and the second middle product go out Mouth is connected by No. five gate valves set on pipeline and pipeline with the second condensation entrance, and second condensate outlet passes through No. six locks Valve connects with the first reactant entrance；3rd condensing unit includes the 3rd drainer and the gas being arranged on the 3rd drainer Phase entrance, U-tube, gaseous phase outlet；The gas phase entrance respectively by No. seven gate valves being correspondingly arranged on pipeline and pipeline, No. eight Gate valve is corresponding to be connected with the first condensate outlet, the second condensate outlet, and U-tube is arranged at the lower section of the 3rd condensing unit, U-tube One end is connected by pipeline with gas phase entrance, the other end of U-tube No. nine locks by being correspondingly arranged on pipeline and pipeline respectively Valve, No. ten gate valves connect with the first reflux inlet, the second reflux inlet；The gaseous phase outlet is used for the discharge of waste gas；Described One liquid-phase outlet, second liquid phase outlet are respectively used to the discharge of the first chlorination tank, the second chlorination tank chlorated liquid, first liquid phase Outlet, the corresponding gate valve of setting ride on Bus No. 11 respectively in second liquid phase outlet, ten No. two gate valves；In first chlorination tank, the second chlorination Temperature monitoring unit, chlorine breather pipe are provided with kettle；The temperature monitoring unit includes enamel thermometric cover, thermometric member Part, tantalum nail；The enamel thermometric cover is a hollow body, and its one end is closed, and another end opening is close in the body The through hole of a setting internal thread is provided with the tube wall of blind end, the temperature element is built in the side connected with tube cavity Through hole in, one end of tantalum nail is screwed into through hole on the outside of body, to be in contact with temperature element, one end of tantalum nail also with it is logical Hole is threadedly coupled；The other end of tantalum nail leaks outside in the outside of enamel thermometric cover；The enamel thermometric cover is from the first chlorination tank Or second the Upper vertical of chlorination tank insert in its inner chamber, the enamel thermometric cover open at one end is placed in the first chlorination tank or On the outside of dichloride kettle, it is closed one end and is placed on the inside of the first chlorination tank or the second chlorination tank；The enamel thermometric cover is installed on The position specified in first chlorination tank or the second chlorination tank, so that the temperature element and the first chlorination tank or the second chlorination tank are left The distance of side inwall is the ∕ 3 of 1 ∕ 4~1 of the diameter of the first chlorination tank or the second chlorination tank, the temperature element and the first chlorination tank Or second the distance of bottom of chlorination tank be 1 ∕ 3 of the cavity heights of the first chlorination tank or the second chlorination tank, the chlorine ventilation Pipe is set with the enamel thermometric cover relative position, and its one end connects with first reactant entrance or the second reactant entrance Logical, the other end is inserted vertically into the first chlorination tank or the second chlorination tank close to the position of bottom, and the chlorine breather pipe is close to first The bending of one end of chlorination tank bottom or the second chlorination tank bottom is set, so that the chlorine of outflow and the first chlorination tank or the second chlorination Kettle inner chamber bottom surface is parallel.
2. 2. the double kettle series connection synthesis systems of high-precision temperature monitoring chloracetyl chloride as claimed in claim 1, it is characterised in that：It is described Temperature element is platinum resistance temperature sensor.
3. 3. the double kettle series connection synthesis systems of high-precision temperature monitoring chloracetyl chloride as claimed in claim 2, it is characterised in that：Institute State and heat conduction rubber cushion is provided between temperature element and tantalum nail, the temperature element, heat conduction rubber cushion, tantalum nail integrally connected.
4. 4. the double kettle series connection synthesis systems of high-precision temperature monitoring chloracetyl chloride as claimed in claim 1, it is characterised in that：It is described First condensing unit, the second condensing unit form side by side by two structure identical condensers.
5. 5. the double kettle series connection synthesis systems of high-precision temperature monitoring chloracetyl chloride as claimed in claim 4, it is characterised in that：Institute State and ten No. three gate valves are installed on the pipeline between No.1 gate valve and No. two gate valves and reactant supply centre；In the described first reaction Ten No. four gate valves are installed on the pipeline between thing entrance and No.1 gate valve, second reactant entrance and No. two gate valves it Between pipeline on ten No. five gate valves are installed；Pacify on pipeline between the No.1 gate valve and ten No. four gate valves and No. six gate valves Equipped with ten No. six gate valves；Ten No. seven locks are installed on pipeline between No. two gate valves and ten No. five gate valves and No. four gate valves Valve.
6. 6. the double kettle series connection synthesis systems of high-precision temperature monitoring chloracetyl chloride as claimed in claim 5, it is characterised in that：It is described First chlorination tank, the outer wall of the second chlorination tank, which are provided with, can be passed through steam and add for first chlorination tank, the second chlorination tank The chuck of heat, it is connected by pipeline with the low pressure air pressure vapour source of outside respectively, and is correspondingly separately installed with its pipeline First control valve, the second control valve, it is also equipped with the pipeline between first control valve and the chuck of the first chlorination tank Ten No. eight gate valves；Ten No. nine gate valves are also equipped with pipeline between second control valve and the chuck of the second chlorination tank.
7. 7. the double kettle series connection synthesis systems of high-precision temperature monitoring chloracetyl chloride as claimed in claim 6, it is characterised in that：Institute State and the first temperature sensor, first pressure sensor are installed on the first chlorination tank；Is provided with second chlorination tank Two temperature sensors, second pressure sensor；Flow is sequentially installed between the reactant supply centre and ten No. three gate valves Meter, regulating valve, the 3rd control valve；First temperature sensor and the first control valve, the 3rd control valve are electrically connected with, and with the Interlocked control between one control valve, the 3rd control valve；The second temperature sensor and the second control valve, the 3rd control valve are electrical Connection, and the interlocked control between the second control valve, the 3rd control valve.