Temperature control system for reaction absorption liquid

Abstract

The utility model discloses a temperature control system for reaction absorption liquid. The temperature control system comprises an absorption liquid stirring kettle, an absorption liquid tank body, a conveying system, an absorption tower and a reflux system, the absorption liquid stirring kettle is connected to the absorption liquid tank body through an absorption liquid conveying pipeline, and a temperature monitoring device is arranged on the absorption liquid conveying pipeline; a conveying system is arranged at the lower part of the absorption liquid tank body, and a temperature control device is arranged in the absorption liquid tank body; the conveying system comprises a first pipeline and a second pipeline, and the absorption liquid tank body is connected to the absorption tower through the first pipeline and connected to the reflux system through the second pipeline; the reflux system is used for performing heat exchange on the absorption liquid by using a refrigerant, and an absorption liquid reflux pipeline from the reflux system after heat exchange is connected to the absorption liquid tank body; a refrigerant pipeline is arranged in the backflow system and provided with an adjustable expansion valve. The temperature of the absorption liquid can be effectively controlled, so that the reaction efficiency of the absorption liquid is improved, and the quality of the nano-calcium finished product at the rear end is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical industry field, concretely relates to a reaction absorption liquid temperature control system. BACKGROUND

[0002] In the pharmaceutical, food, chemical industry and other industries, different products are prepared according to the type of reaction and the progress of reaction, and the temperature requirement is also different. Different products, different processes have different requirements for the height of temperature, the speed of temperature rise. The existing technology adjusts the temperature in the reaction container in many ways, such as water bath, oil bath, coil heat exchange, etc. The more suitable temperature adjustment mode is selected according to the reaction requirement. In the process of preparing nano calcium carbonate, carbonization reaction is an indispensable stage, and carbonization reaction is the reaction of absorption liquid and CO2 in carbonization absorption tower according to a certain proportion, so the preparation of absorption liquid plays a key role, and temperature control is particularly important, which has a great influence on the quality of product.

[0003] At present, in the preparation temperature control device of carbonization reaction absorption liquid, there are low heat exchange efficiency, uneven heat exchange, inaccurate temperature control, high energy consumption and other disadvantages. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a reaction absorption liquid temperature control system, which effectively controls the temperature of absorption liquid according to the preparation temperature control requirement of carbonization reaction absorption liquid.

[0005] To achieve the above purpose, the technical scheme provided by the utility model is:

[0006] A reaction absorption liquid temperature control system, comprising an absorption liquid stirred tank, an absorption liquid tank body, a conveying system, an absorption tower and a reflux system.

[0007] The absorption liquid stirred tank is connected to the absorption liquid tank body through an absorption liquid conveying pipeline, and a temperature monitoring device is arranged on the absorption liquid conveying pipeline; the lower part of the absorption liquid tank body is provided with a conveying system, and the absorption liquid tank body is provided with a temperature control device.

[0008] The conveying system comprises a first pipeline and a second pipeline, the absorption liquid tank body is connected to the absorption tower through the first pipeline and connected to the reflux system through the second pipeline; the reflux system is used for heat exchange between the absorption liquid and the refrigerant, and the absorption liquid reflux pipeline connected to the absorption liquid tank body is connected to the reflux system through heat exchange; the reflux system is provided with a refrigerant pipeline, and the refrigerant pipeline is provided with an adjustable expansion valve.

[0009] To optimize the above technical scheme, the specific measures taken also include:

[0010] The absorption liquid tank body comprises a first absorption liquid tank body and a second absorption liquid tank body, the first absorption liquid tank body is connected to the second absorption liquid tank body through a tank body interconnection pipe; the first absorption liquid tank body is connected to a reflux system through a second pipeline, the reflux system is connected to the second absorption liquid tank body through an absorption liquid reflux pipeline; the first absorption liquid tank body and the second absorption liquid tank body are respectively connected to an absorption tower through branch pipelines from a first pipeline; control valves are arranged on the pipelines.

[0011] The absorption liquid stirring kettle is connected with a water preparation device, the water preparation device is used for conveying deionized water to the absorption liquid stirring kettle; and a feeding port for adding an absorbent is further arranged on the absorption liquid stirring kettle.

[0012] The absorption liquid stirring kettle is internally provided with a stirring device for mixing and stirring the deionized water and the absorbent, the stirring device comprises a stirring rod inserted into the bottom of the stirring kettle, and a transverse stirring assembly is arranged at the bottom of the stirring rod.

[0013] Further, the stirring rod is connected with a variable frequency motor, the variable frequency motor is used for adjusting the rotating speed of the stirring rod along the axis thereof; and the transverse stirring assembly comprises a plurality of arrayed stirring heads.

[0014] The reflux system is internally provided with a heat exchange pipeline, the heat exchange pipeline is provided with a refrigerant inlet, a refrigerant outlet and a heat exchange control system.

[0015] Further, an electromagnetic valve and an expansion valve are arranged at the refrigerant inlet, and a pressure detector and a temperature sensing bag are arranged at the refrigerant outlet, and the pressure detector and the temperature sensing bag are signal connected with the heat exchange control system.

[0016] Further, an absorption tower pneumatic valve and a first pump are arranged on the first pipeline between the absorption liquid tank body and the absorption tower; and a reflux pneumatic valve and a second pump are arranged on the second pipeline between the absorption liquid tank body and the reflux system.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] The temperature monitoring device between the absorption liquid stirring kettle and the absorption liquid tank body, the temperature control device in the absorption liquid tank body and the transportation and treatment of the absorption liquid by the conveying system and the reflux system can realize the temperature control and adjustment of the reaction absorption liquid as a whole.

[0019] The reflux system is provided with a heat exchange control system and an expansion valve which can be adjusted through the heat exchange control system, the opening degree of the expansion valve can be adjusted through the temperature and pressure of the absorption liquid, so as to control the flow of the refrigerant until the system temperature reaches the set value.

[0020] The utility model discloses, absorption liquid tank body can set two absorption liquid tank bodies, two absorption liquid tank bodies can according to need respectively transport to carbonization absorption tower and carry out reaction or utilize refrigerant medium cooling to absorption liquid through reflux system.

[0021] The system can effectively control the temperature of the absorption liquid, improve the reaction efficiency of the absorption liquid, and improve the quality of the finished nanometer calcium. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The utility model discloses a reaction absorption liquid temperature control system's structure diagram of one embodiment.

[0023] Figure 2 The utility model discloses a reaction absorption liquid temperature control system's structure diagram of another embodiment.

[0024] Figure 3 The utility model discloses a reflux system's structure diagram.

[0025] In the drawing: 1-absorption liquid stirred tank, 2-absorption liquid tank body, 2-1-first absorption liquid tank body, 2-2-second absorption liquid tank body, 3-absorption tower, 4-reflux system, 5-temperature monitoring device, 6-temperature control device, 7-first pipeline, 8-second pipeline, 9-absorption liquid reflux pipeline, 10-tank body interval conveying pipe, 11-water making equipment, 12-feeding port, 13-stirring rod, 14-stirring assembly, 15-refrigerant inlet, 16-refrigerant outlet, 17-heat exchange control system, 18-solenoid valve and expansion valve, 19-pressure detector and temperature sensing bag. DETAILED DESCRIPTION

[0026] The above content of the utility model will be further explained in the form of embodiment, but this should not be understood as the range of the above subject matter of the utility model is limited to the following embodiment, and the technology realized based on the above content of the utility model belongs to the range of the utility model.

[0027] The utility model provides a kind of reaction absorption liquid temperature control system, as shown in Figure 1 Indicated, including absorption liquid stirred tank 1, absorption liquid tank body 2, conveying system, absorption tower 3 and reflux system 4;

[0028] Absorption liquid stirred tank 1 is connected to absorption liquid tank body 2 by absorption liquid conveying pipeline, and temperature monitoring device 5 is equipped on absorption liquid conveying pipeline;The lower portion of absorption liquid tank body 2 is equipped with conveying system, and temperature control device 6 is equipped in absorption liquid tank body 2;

[0029] The conveying system includes a first pipeline 7 and a second pipeline 8. The absorbent tank 2 is connected to the absorption tower 3 through the first pipeline 7 and to the reflux system 4 through the second pipeline 8. The reflux system 4 is used to exchange heat with the absorbent using a refrigerant. The absorbent reflux pipeline 9, which comes out of the reflux system 4 through the heat exchange, is connected to the absorbent tank 2. The reflux system 4 has a refrigerant pipeline, which is equipped with an adjustable expansion valve.

[0030] As a preferred embodiment, the absorbent tank 2 includes a first absorbent tank 2-1 and a second absorbent tank 2-2. The first absorbent tank 2-1 is connected to the second absorbent tank 2-2 via an inter-tank conveying pipe 10. The first absorbent tank 2-1 is connected to the reflux system 4 via a second pipeline 8. The reflux system 4 is connected to the second absorbent tank 2-2 via an absorbent reflux pipeline 9. The first absorbent tank 2-1 and the second absorbent tank 2-2 are respectively connected to the absorption tower 3 via branch pipelines from the first pipeline 7. Control valves are provided on each pipeline.

[0031] The absorbent stirring tank 1 is connected to the water production equipment 11, which is used to supply deionized water to the absorbent stirring tank 1; the absorbent stirring tank 1 is also provided with a feed port 12 for adding absorbent.

[0032] The absorbent stirring tank 1 has a stirring device for mixing deionized water and absorbent. The stirring device includes a stirring rod 13 inserted downward into the bottom of the stirring tank, and a horizontal stirring component 14 is provided at the bottom of the stirring rod 13.

[0033] The stirring rod 13 is connected to a variable frequency motor, which is used to adjust the rotation speed of the stirring rod 13 along its axis; the transverse stirring assembly 14 includes multiple stirring heads arranged in an array.

[0034] The reflux system 4 is equipped with heat exchange pipelines, which have a refrigerant inlet 15, a refrigerant outlet 16, and a heat exchange control system 17.

[0035] like Figure 3 As shown, a solenoid valve and an expansion valve 18 are installed at the refrigerant inlet, and a pressure detector and a temperature sensor 19 are installed at the refrigerant outlet 16. The pressure detector and the temperature sensor 19 are connected to the heat exchange control system 17 via signal connection.

[0036] The first pipeline 7 between the absorbent tank 2 and the absorbent tower 3 is equipped with a pneumatic valve for the absorbent tower 3 and a first pump; the second pipeline 8 between the absorbent tank 2 and the reflux system 4 is equipped with a reflux pneumatic valve and a second pump.

[0037] The temperature control process of this utility model is illustrated below by way of an example:

[0038] In one embodiment, such as Figure 1As shown, the deionized water from the water making device 11 first enters the absorption liquid stirring tank 1, and a proper amount of absorbent is added according to requirements to generate absorption liquid by stirring and mixing, and the reaction liquid after stirring enters the absorption liquid tank body 2;

[0039] The temperature control device 6 arranged in the absorption liquid tank body 2 is used to control the temperature of the absorption liquid in the absorption liquid tank body 2, and the conveying system cooperates with the temperature control device 6 to operate:

[0040] When the temperature in the absorption liquid tank body 2 is higher than the temperature setting value, the pneumatic valve connected to the absorption tower 3 is closed, the pneumatic valve connected to the reflux system 4 is opened, the absorption liquid enters the reflux system 4, and the absorption liquid is cooled by the heat exchange of the refrigerant medium;

[0041] When the temperature in the absorption liquid tank body 2 is cooled to the setting value, the pneumatic valve connected to the reflux system 4 is closed, the pneumatic valve connected to the absorption tower 3 is opened, the absorption liquid enters the absorption tower 3, and enters the carbonization reaction of the next section; in a specific embodiment, the temperature setting value can be 30℃;

[0042] In another embodiment, as shown in Figure 2 When two absorption liquid tank bodies 2 are arranged, the difference measures are as follows:

[0043] When the temperature in the first absorption liquid tank body 2-1 is higher than the temperature setting value, the absorption liquid in the first absorption liquid tank body 2-1 enters the reflux system 4, and the absorption liquid is cooled by the heat exchange of the refrigerant medium, and the cooled absorption liquid enters the second absorption liquid tank body 2-2, and when the temperature in the second absorption liquid tank body 2-2 reaches the temperature setting value, the pneumatic valve connected to the absorption tower 3 in the second absorption liquid tank body 2-2 is opened, and the absorption liquid in the second absorption liquid tank body 2-2 is pumped into the absorption tower 3;

[0044] When the temperature in the first absorption liquid tank body 2-1 reaches the temperature setting value, the pneumatic valve connected to the absorption tower 3 in the first absorption liquid tank body 2-1 is opened, and the absorption liquid in the first absorption liquid tank body 2-1 is directly pumped into the absorption tower 3.

[0045] The above is only a preferred embodiment of the present application, and does not limit the present application in any form, and any skilled person in the art, without departing from the technical scheme of the present application, according to the technical essence of the present application, any simple modification, equivalent replacement and improvement of the above embodiment, etc. still belongs to the protection scope of the technical scheme of the present application.

Claims

1. A temperature control system for a reaction absorption liquid, characterized in that: It comprises an absorption liquid stirring kettle, an absorption liquid tank, a conveying system, an absorption tower and a reflux system. The absorption liquid stirring kettle is connected to the absorption liquid tank through an absorption liquid conveying pipeline, and a temperature monitoring device is arranged on the absorption liquid conveying pipeline. The conveying system comprises a first pipeline and a second pipeline, the absorption liquid tank is connected to the absorption tower through the first pipeline and connected to the reflux system through the second pipeline.

2. The reaction absorption liquid temperature control system according to claim 1, characterized by: The absorption liquid tank comprises a first absorption liquid tank and a second absorption liquid tank, the first absorption liquid tank is connected to the second absorption liquid tank through a tank conveying pipeline, the first absorption liquid tank is connected to the reflux system through the second pipeline, the reflux system is connected to the second absorption liquid tank through an absorption liquid reflux pipeline, the first absorption liquid tank and the second absorption liquid tank are respectively connected to the absorption tower through branch pipelines from the first pipeline, and control valves are arranged on the pipelines.

3. The reaction absorption liquid temperature control system of claim 1, wherein: The absorption liquid stirring kettle is connected to a water making device, the water making device is used for conveying deionized water to the absorption liquid stirring kettle, and a feeding port for adding an absorbent is further arranged on the absorption liquid stirring kettle.

4. The reaction absorption liquid temperature control system according to claim 3, characterized by: The absorption liquid stirring kettle is internally provided with a stirring device for mixing and stirring the deionized water and the absorbent, the stirring device comprises a stirring rod inserted into the bottom of the stirring kettle, and a transverse stirring assembly is arranged at the bottom of the stirring rod.

5. The reaction-absorbent liquid temperature control system of claim 4, wherein: The stirring rod is connected to a variable frequency motor, the variable frequency motor is used for adjusting the rotating speed of the stirring rod along its axis, and the transverse stirring assembly comprises a plurality of arrayed stirring heads.

6. The reaction-absorbent liquid temperature control system of claim 1, wherein: The reflux system is internally provided with a heat exchange pipeline, the heat exchange pipeline comprises a refrigerant inlet, a refrigerant outlet and a heat exchange control system.

7. The reaction-absorbent liquid temperature control system of claim 6, wherein: An electromagnetic valve and an expansion valve are arranged at the refrigerant inlet, a pressure detector and a temperature sensing bag are arranged at the refrigerant outlet, and the pressure detector and the temperature sensing bag are signal connected with the heat exchange control system.

8. The reaction-absorbent liquid temperature control system of claim 1, wherein: An absorption tower pneumatic valve and a first pump are arranged on the first pipeline between the absorption liquid tank and the absorption tower, and a reflux pneumatic valve and a second pump are arranged on the second pipeline between the absorption liquid tank and the reflux system.

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