Chlorination reaction device for chlor-alkali chemical industry
By adopting a combination design of a venturi mixer and a static mixer in the chlorination reaction device, combined with the use of gas buffer tanks, pressure reducing valves and sensors, the problems of insufficient reactants mixing and equipment are easily corroded in traditional devices, and efficient and stable chlorination reactions and product quality improvements are achieved.
Patent Information
- Application Number
- CN202520423390.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2035-03-12
AI Technical Summary
Traditional chlorination reaction devices cannot ensure that the reactants are fully mixed, which affects the reaction rate and production efficiency. Reactors using traditional materials are susceptible to corrosion by chlorine and hydrogen chloride, shorten the equipment life, and the reaction conditions are not controlled accurately enough, resulting in difficult to maintain production stability.
A chlorination reaction device for chlorine-alkali chemical industry is designed, using a combination of a Venturi mixer and a static mixer. Through the high-speed flowing reaction liquid, chlorine gas is synchronized and initially mixed, and then a high-efficiency mixing reaction is carried out under the static mixer in the reaction tank. The device is also equipped with a gas buffer tank, pressure reducing valve, temperature sensor and pressure sensor to ensure stable supply of chlorine, precise control of reaction conditions and safe operation of the device.
It improves the contact area and speed of chlorine and organic compound liquid, optimizes the mixing efficiency, enhances the stability and efficiency of the reaction, extends the service life of the equipment, and improves product quality.
Smart Images
Figure CN222739188U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of chlorination reaction devices, in particular to a chlorination reaction device for chlor-alkali chemical industry. Background Art
[0002] In the chlor-alkali chemical industry, chlorination reaction is one of the important processes for manufacturing a variety of chlorine-containing compounds, especially in the production of chlorinated hydrocarbons, chlorinated paraffins and other products. The chlorination reaction introduces chlorine into specific organic or inorganic substances to replace hydrogen atoms or other groups to generate a series of chlorinated products with a wide range of uses. With the growth of demand for these products, the demand for chlorination reaction equipment that can efficiently and safely handle chlorine has also increased accordingly.
[0003] In the chlor-alkali industrial production, the traditional stirring method usually cannot ensure the sufficient mixing of the reactants, which will directly affect the reaction rate and reduce the overall production efficiency. In addition, since the reaction media such as chlorine and hydrogen chloride are highly corrosive, the reactors made of traditional materials are easily affected by corrosion, thereby shortening the service life of the equipment. In addition, when the control of reaction conditions such as temperature, pressure and feed rate is not precise enough, it is easy to make it difficult to maintain the stability of production, limiting the improvement of production efficiency and product quality. Therefore, it is necessary to design a chlorination reaction device for chlor-alkali chemical industry in view of the shortcomings of the existing technology. Utility Model Content
[0004] In order to overcome the above-mentioned shortcomings of the prior art, the utility model provides a chlorination reaction device for chlor-alkali chemical industry.
[0005] The technical scheme is as follows: A chlorination reaction device for chlor-alkali chemical industry, comprising a base, the base is an assembly carrier of the reaction device, a chlorine tank and a reaction liquid storage tank are fixedly installed on the top surface of the base, and chlorine and organic compound liquid are stored in the chlorine tank and the reaction liquid storage tank respectively; it also includes a venturi mixer, a reaction tank, a spray pipe, a liquid pump, a delivery pipe, a chlorine pipe, a static mixer and a heating pipe, the venturi mixer is fixedly installed on the base through a bracket, the reaction tank is also installed on the base, the outlet of the venturi mixer is connected to the reaction tank through the spray pipe, and the venturi mixer is connected to the reaction tank through the spray pipe. A negative pressure port is provided at the throat of the mixer, the entrance of the venturi mixer is a liquid inlet, a liquid pump is fixedly installed on the base, the liquid pump is connected to the reaction liquid storage tank and the venturi mixer respectively through a delivery pipe, the delivery pipe is connected to the venturi mixer through the liquid inlet, the chlorine tank is connected to the negative pressure port of the venturi mixer through a chlorine pipe, a static mixer is provided inside the reaction tank, a discharge valve for discharging the chlorination reaction product is provided on one side of the bottom of the reaction tank, and the liquid pump transports the organic compound liquid (hydrocarbons) inside the reaction liquid storage tank to the venturi mixer at a high speed through the delivery pipe.
[0006] More preferably, a pressure reducing valve is provided at the interface between the gas outlet of the chlorine tank and the chlorine pipe, and the pressure reducing valve is used to limit the output pressure of the chlorine tank, prevent the chlorine pipe from being damaged due to excessive pressure in the chlorine tank, and improve the safety of the chlorine tank in providing chlorine.
[0007] More preferably, a gas buffer tank is further included. A gas buffer tank is also installed on the base. The chlorine pipe is first introduced into the gas buffer tank and then connected to the negative pressure port of the venturi mixer. The gas buffer tank is used to buffer the introduction of chlorine, so that the chlorine entering the gas buffer tank can be stably supplied to the venturi mixer for mixing.
[0008] More preferably, a partition is arranged around the static mixer in the reaction liquid storage tank, a seal is arranged between the partition and the chlorine tank, a heating tube is arranged around the partition, and the partition is used to reduce the heat loss generated by the heating tube and improve the heating efficiency of the heating tube in the reaction tank.
[0009] More preferably, a temperature sensor is further included. The reaction tank is provided with a temperature sensor, and the temperature sensor is used to monitor the temperature of the static mixer in the reaction tank, so that the operator can timely understand and regulate the temperature in the reaction tank, thereby accurately controlling the chlorination reaction to maintain the optimal reaction temperature.
[0010] More preferably, the Venturi mixer is provided with pressure sensors, which are distributed in the contraction section, throat and diffusion section of the Venturi mixer, and are used to monitor the pressure of the gas at different positions of the Venturi mixer.
[0011] Compared with the prior art, the utility model has the following advantages:
[0012] 1. The utility model adopts the design of the Venturi mixer and utilizes the low pressure generated in the throat by the high-speed flowing reaction liquid to synchronously inhale and preliminarily mix the chlorine gas, which not only increases the contact area and speed between the chlorine gas and the organic compound liquid, but also optimizes the mixing efficiency between the two.
[0013] 2. The utility model sets a pressure reducing valve between the gas outlet of the chlorine tank and the chlorine pipe to prevent the pipeline from being damaged due to excessive pressure in the chlorine tank, thereby improving the safety of operation. At the same time, pressure sensors are installed at different positions of the Venturi mixer to ensure that the entire device operates within a safe pressure range.
[0014] 3. The utility model introduces a gas buffer tank, so that chlorine can be stably supplied to the venturi mixer, which helps to improve the reaction efficiency and product quality. In addition, the static mixer further enhances the mixing effect in the reaction tank and promotes efficient and uniform chemical reactions. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.
[0016] Figure 2 It is a schematic diagram of the connection relationship between the venturi mixer, reaction tank and pressure sensor of the utility model.
[0017] Figure 3 It is a schematic diagram of the reaction tank, partition, heating tube and static mixer of the utility model.
[0018] Figure 4 It is a three-dimensional structural schematic diagram of the partition and static mixer of the utility model.
[0019] The meanings of the reference numerals in the figure are: 1. base, 2. chlorine gas tank, 3. reaction liquid storage tank, 4. venturi mixer, 41. bracket, 5. reaction tank, 51. discharge valve, 6. liquid inlet, 7. negative pressure port, 8. spray pipe, 9. liquid suction pump, 10. delivery pipe, 11. chlorine gas pipe, 12. pressure reducing valve, 13. gas buffer tank, 14. partition, 15. heating tube, 16. static mixer, 17. temperature sensor, 18. pressure sensor. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] A chlorination reaction device for chlor-alkali chemical industry, such as Figure 1-Figure 4As shown, it includes a base 1, which is an assembly carrier of the reaction device. A chlorine tank 2 and a reaction liquid storage tank 3 are fixedly installed on the top surface of the base 1, and chlorine and organic compound liquid are stored in the chlorine tank 2 and the reaction liquid storage tank 3 respectively; it also includes a venturi mixer 4, a reaction tank 5, a spray pipe 8, a liquid pump 9, a delivery pipe 10, a chlorine pipe 11, a static mixer 16 and a heating pipe 15. The venturi mixer 4 is fixedly installed on the base 1 through a bracket 41, and the reaction tank 5 is also installed on the base 1. The outlet of the venturi mixer 4 is connected to the reaction tank 5 through the spray pipe 8. A negative pressure port 7 is opened at the throat of the venturi mixer 4, and the inlet of the venturi mixer 4 is a liquid inlet 6. A liquid pump 9 is fixedly installed on the base 1, and the liquid pump 9 is connected to the reaction liquid storage tank 3 and the venturi mixer 4 through a delivery pipe 10. The delivery pipe 10 is connected to the liquid inlet The chlorine tank 2 is connected to the negative pressure port 7 of the venturi mixer 4 through the chlorine pipe 11. A static mixer 16 is arranged inside the reaction tank 5. A discharge valve 51 for discharging the chlorination reaction product is arranged on one side of the bottom of the reaction tank 5. The liquid pump 9 transports the organic compound liquid (hydrocarbons) in the reaction liquid storage tank 3 to the venturi mixer 4 at a high speed through the delivery pipe 10. When the reaction liquid flows through the waiting part of the venturi mixer 4 at a high speed, a low pressure will be generated, so that the chlorine in the chlorine tank 2 in the open state can be synchronously sucked into the venturi mixer 4 through the chlorine pipe 11 under the action of negative pressure, so that the chlorine and the organic compound liquid are preliminarily mixed in the venturi mixer 4, and finally the mixed liquid is introduced into the reaction tank 5, and an efficient mixing reaction is carried out under the action of the static mixer 16, thereby optimizing the reaction process and improving the overall production efficiency of the chlor-alkali chemical industry.
[0022] like Figure 1 As shown, a pressure reducing valve 12 is provided at the interface between the gas outlet of the chlorine tank 2 and the chlorine pipe 11. The pressure reducing valve 12 is used to limit the output pressure of the chlorine tank 2 to prevent the chlorine pipe 11 from being damaged due to excessive pressure in the chlorine tank 2, thereby improving the safety of the chlorine tank 2 in providing chlorine.
[0023] like Figure 1 As shown, a gas buffer tank 13 is also included. The base 1 is also equipped with the gas buffer tank 13. The chlorine pipe 11 is first introduced into the gas buffer tank 13 and then connected to the negative pressure port 7 of the venturi mixer 4. The gas buffer tank 13 is used to buffer the introduction of chlorine, so that the chlorine entering the gas buffer tank 13 can be stably supplied to the venturi mixer 4 for mixing, which helps to improve the reaction efficiency and product quality.
[0024] like Figure 3 and Figure 4As shown, a layer of partition 14 is arranged on the periphery of the static mixer 16 in the reaction liquid storage tank 3, a sealing arrangement is arranged between the partition 14 and the chlorine gas tank 2, and a heating tube 15 is arranged on the periphery of the partition 14. The partition 14 is used to reduce the heat loss generated by the heating tube 15 and improve the heating efficiency of the heating tube 15 in the reaction tank 5.
[0025] like Figure 2 and Figure 3 As shown, a temperature sensor 17 is also included. The reaction tank 5 is provided with the temperature sensor 17. The temperature sensor 17 is used to monitor the temperature of the static mixer 16 in the reaction tank 5, so that the operator can timely understand and adjust the temperature in the reaction tank 5, thereby accurately controlling the chlorination reaction to maintain the optimal reaction temperature; the venturi mixer 4 is provided with a pressure sensor 18. The pressure sensor 18 is distributed in the contraction section, throat and diffusion section of the venturi mixer 4. The pressure sensor 18 is used to monitor the pressure of the gas at different positions of the venturi mixer 4 to ensure that the device is always within the designed safety range to avoid accidents caused by overpressure.
[0026] When using the device, first open the pressure reducing valve 12 on the chlorine tank 2, so that the chlorine on the chlorine tank 2 is decompressed and passed into the gas buffer tank 13, and the liquid pump 9 pressurizes the organic compound liquid (such as hydrocarbons) in the reaction liquid storage tank 3 and injects it into the liquid inlet 6 of the venturi mixer 4 through the delivery pipe 10 at a high speed. When the liquid flows through the throat of the venturi mixer 4, a significant negative pressure effect is generated due to the sudden increase in fluid velocity. At this time, the chlorine in the gas buffer tank 13 is continuously sucked into the throat of the mixer through the chlorine pipe 11 under the action of the pressure difference. After the chlorine and the high-speed flowing organic liquid flow complete the initial gas-liquid mixing in the venturi mixer 4, the mixed material is injected into the reaction tank 5 at a high speed through the injection pipe 8. In this process The pressure sensors 18 distributed in each section of the venturi mixer 4 continuously monitor the changes in fluid pressure to ensure that the device operates under safe conditions. The static mixer 16 arranged in the reaction tank 5 cuts and reorganizes the material in multiple stages through specially designed spiral blades, thereby enhancing the mass transfer efficiency and promoting the full chlorination reaction. At the same time, the heating tube 15 surrounding the static mixer 16 accurately controls the reaction temperature through the insulation chamber formed by the partition 14. With the real-time monitoring of the temperature sensor 17, the reaction system is always in the preset optimal temperature zone. The product of the final reaction is output through the bottom discharge valve 51, thereby improving the efficient chlorination reaction of chlorine and organic matter and the quality of the product.
[0027] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A chlorination reaction device for chlor-alkali chemical industry, comprising a base (1), a chlorine gas tank (2) and a reaction liquid storage tank (3) being fixedly mounted on the top surface of the base (1), wherein chlorine gas and an organic compound liquid are stored in the chlorine gas tank (2) and the reaction liquid storage tank (3) respectively; It is characterized in that The invention also comprises a venturi mixer (4), a reaction tank (5), a spray pipe (8), a liquid pump (9), a delivery pipe (10), a chlorine pipe (11), a static mixer (16) and a heating pipe (15). The venturi mixer (4) is fixedly mounted on the base (1) via a bracket (41). The reaction tank (5) is also mounted on the base (1). The outlet of the venturi mixer (4) is connected to the reaction tank (5) via the spray pipe (8). A negative pressure port (7) is provided at the throat of the venturi mixer (4). ) is a liquid inlet (6), a liquid pump (9) is fixedly mounted on the base (1), the liquid pump (9) is connected to the reaction liquid storage tank (3) and the venturi mixer (4) respectively through a delivery pipe (10), the delivery pipe (10) is connected to the venturi mixer (4) through the liquid inlet (6), the chlorine tank (2) is connected to the negative pressure port (7) of the venturi mixer (4) through a chlorine pipe (11), a static mixer (16) is provided inside the reaction tank (5), and a discharge valve (51) is provided on one side of the bottom of the reaction tank (5).
2. A chlorination reaction device for chlor-alkali chemical industry according to claim 1, characterized in that: A pressure reducing valve (12) is provided at the interface between the gas outlet of the chlorine gas tank (2) and the chlorine gas pipe (11), and the pressure reducing valve (12) is used to limit the output pressure of the chlorine gas tank (2).
3. A chlorination reaction device for chlor-alkali chemical industry according to claim 2, characterized in that: It also includes a gas buffer tank (13). The base (1) is also equipped with a gas buffer tank (13). The chlorine gas pipe (11) first flows into the gas buffer tank (13) and then is connected to the negative pressure port (7) of the venturi mixer (4).
4. A chlorination reaction device for chlor-alkali chemical industry according to claim 3, characterized in that: A layer of partition (14) is arranged on the periphery of the static mixer (16) in the reaction liquid storage tank (3), a sealing arrangement is arranged between the partition (14) and the chlorine gas tank (2), and a heating pipe (15) is arranged on the periphery of the partition (14).
5. A chlorination reaction device for chlor-alkali chemical industry according to claim 4, characterized in that: A temperature sensor (17) is also included. The reaction tank (5) is provided with the temperature sensor (17), and the temperature sensor (17) is used to monitor the temperature of the static mixer (16) in the reaction tank (5).
6. A chlorination reaction device for chlor-alkali chemical industry according to claim 5, characterized in that: The venturi mixer (4) is provided with a pressure sensor (18), the pressure sensor (18) being distributed in the contraction section, throat section and diffusion section of the venturi mixer (4), and the pressure sensor (18) being used to monitor the pressure of the gas at different positions of the venturi mixer (4).