CN210303657U - A reation kettle for vinyl ether preparation - Google Patents

Abstract

The utility model discloses a reation kettle for vinyl ether preparation, including the cauldron body and kettle cover, the kettle cover can be dismantled and connect on the cauldron body, the below of the cauldron body is equipped with the landing leg, be equipped with on the cauldron body and press from both sides the cover, it is equipped with the inlet tube of admitting air to press from both sides the cover top, the below is equipped with the inlet tube of giving vent to anger, it cuts to the valve all to be equipped with on inlet tube and the inlet tube of giving vent to anger to admit air, the bottom of the cauldron body is equipped with the fluid-discharge tube, be equipped with the flowing back valve on the fluid-discharge tube, be equipped with the filling tube on the kettle cover, the relief valve, blast pipe and agitating unit, the exhaust end of relief valve is equipped with the nitrogen gas spout, be equipped with the ball valve on the filling tube, be equipped with the gas filling pipe on the gas filling pipe. The utility model discloses heat exchange efficiency is high, and safety and stability is high, is favorable to improving the preparation efficiency of vinyl ether.

Description

A reation kettle for vinyl ether preparation

Technical Field

The utility model relates to a vinyl ether preparation technical field especially relates to a reation kettle for vinyl ether preparation.

Background

The vinyl ether is colorless flammable liquid and has active chemical reaction performance. Easily polymerized in liquid or gas phase, and industrial products contain a polymerization inhibitor to prevent polymerization. Vinyl ether is slightly soluble in water, is soluble in many organic solvents such as acetone, benzene, carbon tetrachloride, etc., is used as an anesthetic, analgesic, fine chemical intermediate, sulfadiazine intermediate, copolymer monomer and organic synthetic raw material, and can be used to prepare perfumes, lubricant additives, etc.

In the industrial preparation of vinyl ethyl ether, acetylene and ethanol are usually added into a reaction kettle containing an alkali metal salt solution to be heated and prepared, the existing reaction kettle has low preparation efficiency and high safety risk, and therefore, a new reaction kettle is urgently needed to meet the requirements of efficient and safe preparation of vinyl ethyl ether.

SUMMERY OF THE UTILITY MODEL

The invention aims to overcome the defects of the prior art and provides a reaction kettle for preparing vinyl ethyl ether. The technical scheme is as follows: a reaction kettle for preparing vinyl ethyl ether comprises a kettle body and a kettle cover, wherein the kettle cover is detachably connected to the kettle body, support legs are arranged below the kettle body, a jacket is arranged on the kettle body, an air inlet and outlet pipe is arranged above the jacket, an air outlet and inlet pipe is arranged below the jacket, stop valves are arranged on the air inlet and outlet pipe, a liquid discharge pipe is arranged at the bottom of the kettle body, a liquid discharge valve is arranged on the liquid discharge pipe, a charging pipe, a safety valve, an exhaust pipe and a stirring device are arranged on the kettle cover, a nitrogen nozzle is arranged at the exhaust end of the safety valve, a spherical valve is arranged on the charging pipe, an exhaust valve is arranged on the exhaust pipe, a gas filling pipe is arranged at the bottom of the kettle body, a check valve is arranged on the gas filling pipe, a mixed gas tank is connected to one end of the check valve, which is far away from the kettle body, and a nitrogen valve is arranged on the nitrogen pipe.

Preferably, a spiral guide plate is arranged in the jacket and used for improving the heat exchange efficiency, so that the preparation efficiency of the product is improved.

Preferably, the kettle cover is in threaded connection with the kettle body, and the kettle cover is convenient to disassemble and maintain.

Preferably, agitating unit includes agitator motor and (mixing) shaft, the (mixing) shaft is located the cauldron internal and the top of (mixing) shaft passes the kettle cover and is connected with the agitator motor who fixes on the kettle cover, the lower extreme of (mixing) shaft is equipped with stirring vane for the material stirring improves product preparation efficiency.

The utility model discloses still including enabling the utility model discloses other subassemblies of normal use, be the conventional technical means in this field. In addition, the device or the component which is not limited in the utility model adopts the conventional technical means in the field.

The utility model discloses a theory of operation is: foretell reation kettle of vinyl ether preparation through setting up the gas mixture case, adds nitrogen gas in the gas mixture case and reduces acetylene concentration, improves the security in the device working process, and the flowing back pipe is used for flowing back after the solution in reation kettle became invalid, the replacement of the alkali metal salt solution of being convenient for. The feeding pipe is used for supplementing alkali metal salt solution or ethanol, the spherical valve is used for guaranteeing the sealing performance in the feeding process, the gas adding pipe is used for supplementing diluted acetylene gas into the reaction kettle, the exhaust pipe is used for guiding vinyl ether generated by reaction into the condensing unit for condensation, the safety valve is used for overpressure protection in the kettle, the reliability of the device is guaranteed, a nitrogen nozzle on the safety valve is used for spraying nitrogen to dilute vinyl ether carried in waste gas when the safety valve acts, exhaust harm is reduced, and the safety of the device is further guaranteed.

The beneficial effects of the utility model are that, heat exchange efficiency is high, and the safety and stability is high, is favorable to improving the preparation efficiency of vinyl ether.

Drawings

The various objects, features and advantages of the present invention will become more apparent from the following detailed description of the preferred embodiments of the invention, when considered in conjunction with the accompanying drawings. The drawings are merely exemplary of the invention and are not necessarily drawn to scale. In the drawings, like reference characters designate the same or similar parts throughout the different views.

Fig. 1 is a schematic view of the overall structure of the present invention.

In the figure: 1. the device comprises a kettle body, 1-1 parts of an air inlet and outlet pipe, 1-2 parts of an air outlet and inlet pipe, 1-3 parts of a spiral guide plate, 1-4 parts of supporting legs, 1-5 parts of a liquid discharge pipe, 1-6 parts of an air feeding pipe, 1-7 parts of a check valve, 1-8 parts of a mixed gas box, 1-9 parts of an acetylene pipe, 1-10 parts of a nitrogen pipe, 2 parts of a kettle cover, 2-1 parts of a stirring device, 2-2 parts of an exhaust pipe, 2-3 parts of a safety valve, 2-4 parts of a feeding pipe and 2-5 parts of a spherical valve.

Detailed Description

The present invention will be described more clearly with reference to the accompanying drawings and specific embodiments in the embodiments of the present invention, and the description herein is only for explaining the present invention, but not for limiting the present invention. Based on the embodiments of the present invention, any modifications, equivalent replacements, improvements, etc. made by other embodiments obtained by those skilled in the art without creative efforts should be included in the protection scope of the present invention.

As shown in figure 1, the utility model provides a reaction kettle for preparing vinyl ether. The technical scheme is as follows: a reaction kettle for preparing vinyl ether comprises a kettle body 1 and a kettle cover 2, wherein the kettle cover 2 is detachably connected to the kettle body 1, support legs 1-4 are arranged below the kettle body 1, a jacket is arranged on the kettle body 1, an air inlet and outlet pipe 1-1 is arranged above the jacket, an air outlet and inlet pipe 1-2 is arranged below the jacket, stop valves are arranged on the air inlet and outlet pipe 1-1 and the air outlet and inlet pipe 1-2, a liquid outlet pipe 1-5 is arranged at the bottom of the kettle body 1, a liquid outlet valve is arranged on the liquid outlet pipe 1-5, a charging pipe 2-4, a safety valve 2-3, an exhaust pipe 2-2 and a stirring device 2-1 are arranged on the kettle cover 2, a nitrogen nozzle is arranged at the exhaust end of the safety valve 2-3, a ball valve 2-5 is arranged on the charging pipe 2-4, and an exhaust valve 2-, still be equipped with gas filling pipe 1-6 in the bottom of the cauldron body 1, be equipped with check valve 1-7 on the gas filling pipe 1-6, the one end that the cauldron body 1 was kept away from to check valve 1-7 is connected with mist case 1-8, be equipped with acetylene pipe 1-9 and nitrogen gas pipe 1-10 on the mist case 1-8, be equipped with the acetylene valve on acetylene pipe 1-9, be equipped with the nitrogen gas valve on nitrogen gas pipe 1-10.

Spiral guide plates 1-3 are arranged in the jacket and used for improving heat exchange efficiency, so that the preparation efficiency of products is improved.

Kettle cover 2 and 1 threaded connection of cauldron body, it is convenient to dismantle the maintenance.

Agitating unit 2-1 includes agitator motor and (mixing) shaft, the (mixing) shaft is located the cauldron body 1 and the top of (mixing) shaft passes kettle cover 2 and is connected with the agitator motor who fixes on kettle cover 2, the lower extreme of (mixing) shaft is equipped with stirring vane for the material stirring improves product preparation efficiency.

The utility model discloses a theory of operation is: according to the reaction kettle for preparing vinyl ethyl ether, the mixed gas box 1-8 is arranged, nitrogen is added into the mixed gas box 1-8 to reduce the acetylene concentration, the safety of the device in the working process is improved, and the liquid discharge pipe 1-5 is used for discharging liquid after the solution in the reaction kettle is invalid, so that the alkali metal salt solution can be conveniently replaced. The feeding pipe 2-4 is used for supplementing alkali metal salt solution or ethanol, the spherical valve 2-5 is used for guaranteeing the sealing performance in the feeding process, the gas feeding pipe 1-6 is used for supplementing diluted acetylene gas into the reaction kettle, the gas discharging pipe 2-2 is used for guiding vinyl ether generated by reaction into a condensing unit for condensation, the safety valve 2-3 is used for overpressure protection in the kettle, the reliability of the device is guaranteed, a nitrogen nozzle on the safety valve 2-3 is used for spraying nitrogen to dilute the vinyl ether carried in waste gas when the safety valve 2-3 acts, exhaust hazards are reduced, and the safety of the device is further guaranteed.

The foregoing is merely a preferred embodiment of the invention and the above description is illustrative, not exhaustive, and not limited to the disclosed embodiments. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. The utility model provides a reation kettle for vinyl ether preparation, includes the cauldron body and kettle cover, the kettle cover can be dismantled and connect on the cauldron body, and the below of the cauldron body is equipped with landing leg, its characterized in that: the kettle is characterized in that a jacket is arranged on the kettle body, an air inlet outlet pipe is arranged above the jacket, an air outlet inlet pipe is arranged below the jacket, a stop valve is arranged on the air inlet outlet pipe and the air outlet inlet pipe, a liquid discharge pipe is arranged at the bottom of the kettle body, a liquid discharge valve is arranged on the liquid discharge pipe, a charging pipe, a safety valve, an exhaust pipe and a stirring device are arranged on the kettle cover, a nitrogen nozzle is arranged at the exhaust end of the safety valve, a ball valve is arranged on the charging pipe, an exhaust valve is arranged on the exhaust pipe, an air adding pipe is further arranged at the bottom of the kettle body, a check valve is arranged on the air adding pipe, one end, far away from the kettle body, of the check valve is connected with a mixed gas tank, an acetylene pipe.

2. The reaction kettle for preparing vinyl ethyl ether according to claim 1, characterized in that: and a spiral guide plate is arranged in the jacket.

3. The reaction kettle for preparing vinyl ethyl ether according to claim 1, characterized in that: the kettle cover is in threaded connection with the kettle body.

4. The reaction kettle for preparing vinyl ethyl ether according to claim 1, characterized in that: the stirring device comprises a stirring motor and a stirring shaft, wherein the stirring shaft is arranged in the kettle body, the top of the stirring shaft penetrates through the kettle cover to be connected with the stirring motor fixed on the kettle cover, and the lower end of the stirring shaft is provided with stirring blades.

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