Cooling control system of reaction kettle

Abstract

The utility model provides a cooling control system of a reaction kettle, which comprises the reaction kettle, the top of the reaction kettle is provided with a reflux inlet, the bottom of the reaction kettle is provided with a material valve, and the material valve is connected with a material inlet pipeline of a plate heat exchanger through a pipeline. The material inlet is provided with a material outlet at a vertical position above the plate heat exchanger, and the material outlet is connected with a reflux inlet pipeline through a pipeline; the reaction kettle is provided with a plate heat exchanger, the plate heat exchanger is provided with a cooling water inlet and a cooling water outlet, and the cooling water inlet and the cooling water outlet are connected with an external cooling water source pipeline through pipelines. The cooling mode that cooling water or steam is conveyed in a jacket in the prior art is changed, materials are rapidly cooled through the plate heat exchanger, meanwhile, an interlayer medium of the reaction kettle does not need to be repeatedly replaced, and the working and production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of reaction kettle production, specifically to a cooling control system of reaction kettle. BACKGROUND

[0002] The reaction kettle is a kind of stainless steel container for carrying out physical or chemical reaction, and the structure design and parameter configuration of container are carried out according to different process condition requirements, to realize the functions of heating, evaporation, cooling and low-speed mixing and reaction required by process.The temperature will change with the progress of reaction process in the chemical reaction process of reaction kettle due to the difference of reaction system and medium, and the rate of many chemical reactions is closely related to temperature, and reducing temperature can better control the reaction process, avoid the increase of by-product or the decline of product quality due to too fast reaction, and under high temperature, the pressure in reaction kettle can rapidly rise, and there are safety risks such as explosion and fire.

[0003] In the existing reaction kettle cooling device, a sandwich is usually arranged on the outside of the reaction kettle, and cooling medium is filled in the sandwich to complete cooling by heat exchange of kettle wall of the reaction kettle, but this cooling mode is that cooling medium first exchanges heat with material close to the inner wall of the reaction kettle, the temperature of material on the outside is reduced, the temperature of material on the inside is high, the rate of cooling is influenced, and meanwhile, uneven cooling can lead to different reaction rates in the reaction kettle, influence the final quality of product, and frequently changing heating medium and cooling medium in the sandwich of reaction kettle can influence work efficiency. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a cooling control system of reaction kettle to solve the problems in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A cooling control system of reaction kettle, comprising:

[0007] The reaction kettle has a reflux port at the top, and a material valve is installed at the bottom, the material valve is connected with a discharge pump by a first discharge pipe, the discharge pump is connected with the material inlet of plate heat exchanger by a second discharge pipe, the material inlet has a material outlet vertically above the plate heat exchanger, the material outlet is connected with a reflux pump by a second reflux pipe, and the reflux pump is connected with the reflux port by a first reflux pipe.

[0008] The plate heat exchanger also has a cooling water inlet and a cooling water outlet, the cooling water inlet is connected with an external cooling water source by a cooling water inlet pipe, and the cooling water outlet is connected with the external cooling water source by a cooling water outlet pipe.

[0009] Preferably, the cooling water inlet pipe and the cooling water outlet pipe are respectively provided with a first valve body and a second valve body.

[0010] Preferably, the first valve body is fixedly provided with a flow meter having a data display instrument.

[0011] Preferably, the flow meter is connected with the central controller.

[0012] Preferably, flanges are arranged on the cooling water inlet and the cooling water outlet for fixing the cooling water inlet pipe and the cooling water outlet pipe.

[0013] Preferably, a temperature sensor is arranged above the reaction kettle, and one end of the temperature sensor penetrates through the inner wall of the reaction kettle to reach the inside of the reaction kettle.

[0014] Preferably, the temperature sensor is connected with the central controller.

[0015] Preferably, the central controller is further connected with the first valve body and the second valve body of the cooling water and a material valve, and the material valve is further connected with an outlet pump and a reflux pump.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] The utility model discloses a reaction kettle cooling system, which comprises a reaction kettle, a cooling water inlet pipe, a cooling water outlet pipe, a first valve body, a second valve body, a material valve, an outlet pump and a reflux pump.

[0018] The cooling system can also realize automatic control, and the central controller can control the opening of the valve, the flow of the cooling water and the selection of the appropriate cooling water medium. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is a front view of the whole structure of the utility model;

[0020] Fig. 2 It is a side view of the plate heat exchanger of the utility model;

[0021] Fig. 3 It is a schematic view of the connection between the sensor, the flow meter, the valve and the central controller of the cooling control system of the utility model.

[0022] In the figure: 1-reaction kettle; 101-material valve; 102-reflux port; 2-plate heat exchanger; 201-cooling water outlet; 202-cooling water inlet; 203-material outlet; 204-material inlet; 3-discharge pump; 301-first discharge pipe; 302-second discharge pipe; 4-reflux pump; 401-first reflux pipe; 402-second reflux pipe; 5-cooling water inlet pipe; 501-first valve body; 6-cooling water outlet pipe; 601-second valve body; 7-central controller; 8-temperature sensor; 9-flow meter. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] Embodiment 1:

[0025] Please refer to Figs. 1-2 The present application provides a technical solution:

[0026] A cooling control system of a reaction kettle 1, comprising:

[0027] The reaction kettle 1 has a reflux port 102 at the top, and a material valve 101 is installed at the bottom of the reaction kettle 1, the material valve 101 is connected with a discharge pump 3 through a first discharge pipe 301, the discharge pump 3 is connected with a material inlet 204 of a plate heat exchanger 2 through a second discharge pipe 302, the material inlet 204 has a material outlet 203 vertically above the plate heat exchanger 2, the material outlet 203 is connected with a reflux pump 4 through a second reflux pipe 402, and the reflux pump 4 is connected with the reflux port 102 through a first reflux pipe 401.

[0028] The plate heat exchanger 2 also has a cooling water inlet 202 and a cooling water outlet 201, the cooling water inlet 202 is connected with an external cooling water source through a cooling water inlet pipe 5, and the cooling water outlet 201 is connected with the external cooling water source through a cooling water outlet pipe 6.

[0029] In this embodiment, the staff can observe the temperature condition in the reaction kettle 1 through the display instrument of the temperature sensor 8, if cooling is needed, the first valve body 501 and the second valve body 601 on the cooling water inlet pipe 5 and the cooling water outlet pipe 6 can be started to open the cooling water inlet pipe 5 and the cooling water outlet pipe 6, so that the cooling water of the external cooling water source flows into the plate heat exchanger 2.

[0030] At the same time, the staff opens the material valve 101 of the reaction kettle 1, and the material in the reaction kettle 1 is transported to the plate heat exchanger 2 under the action of the discharge pump 3 along the first discharge pipe 301 and the second discharge pipe 302 to exchange heat with cooling water, and the material after heat exchange is returned to the reaction kettle 1 through the reflux pump 4 from the first reflux pipe 401 and the second reflux pipe 402 to continue production, and when the temperature is reduced to the appropriate temperature, the staff can close the channel of the cooling water, so as to form a loop between the reaction kettle 1 and the plate heat exchanger 2, and form a complete cooling control system, and the cooling mode of the existing technology in the jacket is changed, the external plate heat exchanger 2 is used for cooling, and the jacket medium does not need to be replaced, and the working efficiency is improved.

[0031] Specifically, the first valve body 501 and the second valve body 601 are respectively arranged in the pipeline of the cooling water inlet pipe 5 and the cooling water outlet pipe 6.

[0032] Specifically, the flow meter 9 is fixedly arranged on one side of the first valve body 501, and the flow meter 9 has a data display instrument.

[0033] Specifically, the flanges are arranged on the cooling water inlet 202 and the cooling water outlet 201, and are used for fixing the cooling water inlet pipe 5 and the cooling water outlet pipe 6.

[0034] Specifically, the temperature sensor 8 is arranged above the reaction kettle 1, and one end of the temperature sensor 8 penetrates the inner wall of the reaction kettle 1 and reaches the inside of the reaction kettle 1.

[0035] Embodiment 2:

[0036] Please refer to Fig. 3 The utility model provides a technical scheme, including the:

[0037] Specifically, the flow meter 9 is connected with the central controller 7.

[0038] Specifically, the temperature sensor 8 is connected with the central controller 7.

[0039] Specifically, the central controller 7 is connected with the first valve body 501 and the second valve body 601 of the cooling water and the material valve 101, and the material valve 101 is connected with the discharge pump 3 and the reflux pump 4.

[0040] Specifically, the central controller 7 can adopt "PLC", "PID" and the like.

[0041] In the embodiment, the cooling system can be controlled by using the central controller 7 in addition to the manual operation mode, and the temperature sensor 8 arranged on the reaction kettle 1 and the flow meter 9 on the valve of the cooling water inlet pipe 5 are connected with the central controller 7.

[0042] The temperature sensor 8 continuously collects the temperature value of the current time in the reaction kettle 1 and sends to the central controller 7 and continuously records to generate the model of temperature difference data, when the central controller 7 senses that the temperature in the reaction kettle 1 is increased, exceeds the standard value, then the central controller 7 starts the first valve body 501 and the second valve body 601 on the cooling water inlet pipe 5 and the cooling water outlet pipe 6, so that the cooling water inlet pipe 5 and the cooling water outlet pipe 6 are opened, and the cooling water flows into the plate heat exchanger 2 for heat exchange.

[0043] At the same time, the central controller 7 opens the material valve 101 below the reaction kettle 1, and the discharge pump 3 and the reflux pump 4 are started with the starting of the material valve 101, and then the material is transported to the plate heat exchanger 2 by the discharge pump 3 along the first discharge pipe 301 and the second discharge pipe 302 for heat exchange with the cooling water.

[0044] The material after heat exchange is returned to the reaction kettle 1 through the reflux pump 4 from the first reflux pipe 401 and the second reflux pipe 402 for continuous production, and the central controller 7 closes the discharge valve and the pump, and stops the cooling water supply, so as to realize the automatic control of the reaction kettle 1 cooling system.

[0045] In the embodiment, the central controller 7 can also select suitable cooling water medium according to the temperature change data model in the reaction kettle 1, for example: 5-35 degrees is suitable for general temperature rapid cooling, and conventional cooling water can be used; -5 to -40 degrees is suitable for the process required by low temperature reaction, and the mixed solution of ethylene glycol / sodium chloride and calcium chloride can be used as cooling water.

[0046] In use, the cooling water inlet pipe 5 and the cooling water outlet pipe 6 are installed at one end of the plate heat exchanger 2, and the material valve 101 of the reaction kettle 1 is connected to the material inlet 204 of the plate heat exchanger 2 through the first discharge pipe 301 and the second discharge pipe 302, and finally the reflux port 102 of the reaction kettle 1 is connected through the first reflux pipe 401 and the second reflux pipe 402, so as to complete the installation.

[0047] The temperature sensor 8 on the reaction kettle 1 enables the staff to determine the condition in the kettle through the instrument, so that when cooling is needed, the material valve 101, the pump and the first valve body 501 of the cooling water inlet pipe 5 are opened to make the material and the cooling water enter the plate heat exchanger 2 for heat exchange.

[0048] The cooling system can also realize automatic control, the opening of the valve is controlled by the central controller 7, and the flow of cooling water and the selection of suitable cooling water medium can be controlled.

[0049] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cooling control system for a reaction vessel, characterized in that, include: The reactor (1) has a reflux port (102) at the top and a material valve (101) at the bottom. The material valve (101) is connected to the discharge pump (3) via a first discharge pipe (301). The discharge pump (3) is connected to the material inlet (204) of the plate heat exchanger (2) via a second discharge pipe (302). The material inlet (204) has a material outlet (203) at a vertical position above the plate heat exchanger (2). The material outlet (203) is connected via a second reflux pipe (402). A return pump (4) is connected to a return port (102) via a first return pipe (401); The plate heat exchanger (2) also has a cooling water inlet (202) and a cooling water outlet (201). The cooling water inlet (202) is connected to an external cooling water source pipeline through a cooling water inlet pipe (5), and the cooling water outlet (201) is connected to an external cooling water source pipeline through a cooling water outlet pipe (6).

2. The cooling control system for a reactor (1) according to claim 1, characterized in that: The cooling water inlet pipe (5) and the cooling water outlet pipe (6) are respectively equipped with a first valve body (501) and a second valve body (601).

3. The cooling control system for a reaction vessel (1) according to claim 2, characterized in that: A flow meter (9) is fixedly installed on one side of the first valve body (501), and the flow meter (9) has a data display instrument.

4. The cooling control system for a reactor (1) according to claim 3, characterized in that: The flow meter (9) is connected to the central controller (7).

5. The cooling control system for a reactor (1) according to claim 2, characterized in that: Flanges are installed on the cooling water inlet (202) and cooling water outlet (201) to fix the cooling water inlet pipe (5) and cooling water outlet pipe (6).

6. The cooling control system for a reactor (1) according to claim 1, characterized in that: A temperature sensor (8) is installed above the reactor (1), and one end of the temperature sensor (8) penetrates the inner wall of the reactor (1) to reach the interior of the reactor (1).

7. The cooling control system for a reactor (1) according to claim 6, characterized in that: The temperature sensor (8) is connected to the central controller (7).

8. The cooling control system for a reactor (1) according to claim 7, characterized in that: The central controller (7) is connected to the first valve body (501) and the second valve body (601) of the cooling water and the material valve (101), and the material valve (101) is connected to the discharge pump (3) and the return pump (4).

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