Double-layer glass reactor for preparing aerogel sol

Abstract

The present invention relates to a double-layer glass reactor for preparing aerogel sol. The double-layer glass reactor comprises: a reactor body, which is a jacket structure; the reactor body comprises a circulating medium inlet and a circulating medium outlet; a through insertion tube is arranged at the upper middle part of the reactor body; a sol discharge port is arranged at the bottom of the reactor body; a reactor cover is arranged above the reactor body and connected to the reactor body through a flange; the reactor cover is provided with a feed port, a titration bottle interface, a distillation condenser interface, a thermocouple interface, a pressure gauge interface and an agitator interface; a fixed frame, the reactor body is fixedly mounted on the fixed frame; an agitator, which comprises a stirring shaft and a stirring paddle; the stirring shaft extends from the outside of the reactor cover through the agitator interface into the reactor body; a stirring paddle is arranged on the stirring shaft extending into the reactor body. The technical problem to be solved is to enable it to be used in the preparation of aerogel sol, so as to realize the precise control of the sol reaction conditions and ensure the quality of the aerogel product, so as to be more suitable for practical use.

Description

Technical Field

[0001] The invention belongs to the technical field of aerogel material manufacturing equipment, and in particular relates to a double-layer glass reactor for preparing aerogel sol. Background Art

[0002] The preparation process of aerogel includes the preparation of sol, and its reaction medium is an acidic solution, which is highly corrosive and is suitable for using a double-layer glass reactor with good corrosion resistance.

[0003] Most of the double-layer glass reactors in the prior art are equipped with stirring, feeding, condensation and other control reaction conditions on the reactor cover, while the reaction process of aerogel sol has relatively complex process requirements. On the one hand, it requires the reactor body to have a jacket layer to flexibly control the temperature of the reaction medium; on the other hand, in the preparation process of aerogel sol, in addition to the need to adjust the reactor pressure, stirring speed, temperature and pH value of the reaction medium at any time, in particular, it is necessary to monitor the pH value of the reaction medium in real time during the reaction process and adjust the pH value in a timely manner.

[0004] The traditional glass reactor used for sol preparation is difficult to meet the control requirements of various process conditions required by the sol preparation process. It is impossible to accurately control the reaction conditions in the glass reactor to achieve precise reaction and it is difficult to control the quality of the product. Therefore, the double-layer glass reactor has not been widely used in the preparation of aerogel sol. Summary of the invention

[0005] The main purpose of the present invention is to provide a double-layer glass reactor for preparing aerogel sol. The technical problem to be solved is to enable it to be used in the preparation of aerogel sol to achieve precise control of sol reaction conditions and ensure the quality of aerogel products, thereby making it more suitable for practical use.

[0006] The purpose of the present invention and the technical problem to be solved are achieved by adopting the following technical solutions. A double-layer glass reactor for preparing aerogel sol proposed in the present invention comprises:

[0007] The kettle body is a jacket structure; the kettle body includes a circulating medium inlet and a circulating medium outlet; an insertion pipe penetrating the side wall of the kettle body is arranged at the upper middle part of the kettle body; a sol discharge port is arranged at the bottom of the kettle body;

[0008] The kettle cover is arranged above the kettle body and connected to the kettle body through a flange; the kettle cover is provided with a feed inlet, a titration bottle interface, a distillation condenser interface, a thermocouple interface, a pressure gauge interface and an agitator interface;

[0009] A fixed frame, on which the kettle body is fixedly mounted;

[0010] The stirrer comprises a stirring shaft and a stirring paddle; the stirring shaft extends from the outside of the kettle cover through the stirring interface into the kettle body; the stirring paddle is arranged on the stirring shaft extending into the kettle body.

[0011] The purpose of the present invention and the solution to its technical problems can be further achieved by adopting the following technical measures.

[0012] Preferably, in the aforementioned double-layer glass reactor, the insertion tube is arranged obliquely upward, and the angle between the insertion tube and the vertical direction is 50±10°.

[0013] Preferably, the aforementioned double-layer glass reactor further comprises a pH probe; the pH probe can be inserted into the insertion tube; the inner surface of the insertion tube and the surface where the pH probe contacts the insertion tube are both made of frosted glass.

[0014] Preferably, in the aforementioned double-layer glass reactor, the insertion tube is integrally formed with the reactor body.

[0015] Preferably, in the aforementioned double-layer glass reactor, the reactor cover and the reactor body are detachably connected.

[0016] Preferably, in the aforementioned double-layer glass reactor, a polytetrafluoroethylene sealing gasket is provided between the reactor body and the reactor cover.

[0017] Preferably, the aforementioned double-layer glass reactor further comprises a titration bottle, a distillation condenser, a thermocouple, a pressure gauge and a pH probe; wherein the titration bottle, the distillation condenser, the thermocouple and the pressure gauge are respectively installed on the reactor cover through the titration bottle interface, the distillation condenser interface, the thermocouple interface and the pressure gauge interface; the pH probe is installed on the reactor body through the insertion tube; the titration bottle, the distillation condenser, the thermocouple, the pressure gauge and the pH probe are all fixed on the fixing frame.

[0018] Preferably, in the aforementioned double-layer glass reactor, fixed seals are provided at the titration bottle interface, the distillation condenser interface, the thermocouple interface and the pressure gauge interface; and a rotating seal is provided at the contact point between the reactor cover and the stirring shaft.

[0019] Preferably, in the aforementioned double-layer glass reactor, the titration bottle comprises an acid titration bottle and an alkali titration bottle.

[0020] Preferably, in the aforementioned double-layer glass reactor, the distillation condenser comprises a distillation flask, a distillation liquid receiving bottle and a cooling tube; the cooling tube is coiled and arranged in the distillation flask; the distillation liquid receiving bottle is arranged below the distillation flask.

[0021] Preferably, the aforementioned double-layer glass reactor also includes a water tank and a water pump; the condenser includes an upper water outlet and a lower water inlet; the water tank is connected to the upper water outlet of the cooling pipe; the water pump is connected to the lower water inlet of the cooling pipe; the water tank, the water pump and the condenser are connected in sequence through pipes to form a cooling water circulation system.

[0022] Preferably, the aforementioned double-layer glass reactor further comprises a vacuum pump; the vacuum pump is connected to the double-layer glass reactor through the distillation flask.

[0023] Preferably, the aforementioned double-layer glass reactor further comprises a circulating medium temperature controller, one end of which is connected to the circulating medium inlet, and the other end is connected to the circulating medium outlet; the temperature range of the circulating medium is -80°C to 300°C.

[0024] Preferably, in the aforementioned double-layer glass reactor, the agitator further comprises a motor and a speed regulator; the motor and the speed regulator are both fixed on the fixed frame; one end of the motor is connected to the speed regulator, and the other end is connected to the stirring shaft, and the speed of the agitator is adjusted by the regulator.

[0025] Preferably, in the aforementioned double-layer glass reactor, the bottom of the fixing frame is provided with a universal wheel and a brake pad; the universal wheel is used to move the fixing frame; and the brake pad is used for braking the universal wheel.

[0026] By means of the above technical solution, the double-layer glass reactor for preparing aerogel sol proposed by the present invention has at least the following advantages:

[0027] 1. The double-layer glass reactor for preparing aerogel sol proposed in the present invention has a feed port, a titration bottle interface, a distillation condenser interface, a thermocouple interface, a pressure gauge interface and an agitator interface arranged on the reactor cover, and the reactor body is a jacket structure, which is provided with an insertion tube, and the insertion tube is integrally formed with the reactor body. By controlling the process of integral forming and the angle of the insertion tube, the thickness of the insertion tube is uniform and the stress is small, so that the double-layer glass reactor provided by the technical solution of the present invention can realize the preparation process of aerogel sol, and can accurately control the reaction conditions according to the process of aerogel sol, so as to prepare aerogel sol with controlled performance, ensure the quality of aerogel sol products, and realize the promotion and application of the double-layer glass reactor in the field of aerogel sol manufacturing;

[0028] 2. The double-layer glass reactor for preparing aerogel sol proposed in the present invention has a good seal between the various parts mounted on the reactor cover by setting fixed seals and rotating seals at the above-mentioned interfaces. At the same time, the inner surface of the insertion tube and the contact surface of the probe are both provided with frosted glass surfaces, and a polytetrafluoroethylene sealing gasket is provided between the reactor body and the reactor cover, so that the entire double-layer glass reactor can form a closed space. When the vacuum pump is connected to the distillation flask, a vacuum condition can be achieved in the reactor, and a sol reaction under vacuum conditions can be carried out, thereby broadening the application scope of the sol preparation process;

[0029] 3. The double-layer glass reactor for preparing aerogel sol proposed in the present invention accurately controls the temperature of cooling water through a cooling water circulation system, and is provided with a distillation flask and a distillation liquid receiving flask to cooperate with the cooling water circulation system, thereby realizing the distillation function of the double-layer glass reactor, and can perform sol reaction under distillation conditions, thereby broadening the application scope of the sol preparation process;

[0030] 4. The double-layer glass reactor for preparing aerogel sol proposed in the present invention can accurately control the temperature of the circulating medium through a circulating medium temperature controller, and the temperature of the circulating medium can be controlled in a wide range of -80°C to 300°C, so that the double-layer glass reactor can achieve accurate temperature control in a wide range, broadening the application range of the sol preparation process;

[0031] 5. The double-layer glass reactor for preparing aerogel sol proposed by the present invention has a reactor body and a reactor cover that are detachably connected. One reactor body can be equipped with reactor covers with different functional settings to achieve switching between different sol processes, thereby broadening the application scope of the sol preparation process;

[0032] 6. The double-layer glass reactor for preparing aerogel sol proposed in the present invention has its reactor body and various components fixedly mounted on the fixing frame, and universal wheels and brake pads are installed at the bottom of the fixing frame, so that the double-layer glass reactor can be flexibly moved within a certain range, which is convenient for production arrangements.

[0033] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of a double-layer glass reactor proposed by the present invention. DETAILED DESCRIPTION

[0035] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation method, structure, characteristics and effects of a double-layer glass reactor for preparing aerogel sol proposed by the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0036] The present invention proposes a double-layer glass reactor for preparing aerogel sol, as shown in the attached Figure 1 As shown, it includes:

[0037] The kettle body 1 is a jacket structure; the kettle body includes a circulating medium inlet 12 and a circulating medium outlet 13; an insertion pipe 14 penetrating the side wall of the kettle body is provided at the upper middle part of the kettle body 1; and a sol discharge port 8 is provided at the bottom of the kettle body;

[0038] The kettle cover 11 is arranged above the kettle body 1 and connected to the kettle body 1 through a flange; the kettle cover 11 is provided with a feed inlet 111, a titration bottle interface, a distillation condenser interface, a thermocouple interface, a pressure gauge interface and an agitator interface;

[0039] A fixing frame 2, on which the kettle body 1 is fixedly mounted;

[0040] The agitator 3 comprises a stirring shaft 33 and a stirring paddle 34 ; the stirring shaft 33 extends from the outside of the kettle cover 11 through the agitator interface into the kettle body 1 ; the stirring paddle 34 is arranged on the stirring shaft 33 extending into the kettle body 1 .

[0041] Regarding the position setting of the insertion tube in the above-mentioned double-layer glass reactor, on the one hand, its height cannot be too low to avoid accidental leakage of the reactor body when the pH probe is inserted into the insertion tube, which may cause a safety accident; on the other hand, its height cannot be too high to avoid the pH probe not being able to reach the liquid surface of the reaction medium and thus being unable to monitor the pH value of the reaction medium in real time. Based on the above two factors, the height position of the insertion tube needs to be set at a lower position on the basis of reserving reaction space. Preferably, the insertion tube is set at a position slightly above the middle of the reactor body.

[0042] The discharge port 8 is also provided with a discharge valve 81 for discharging the prepared sol.

[0043] Preferably, the insertion tube 14 is disposed obliquely upward, and the angle between the insertion tube 14 and the vertical direction is 50±10°.

[0044] The angle design of the insertion tube is not only for the convenience of operation when measuring pH value, but also for the small stress between the pH probe and the kettle body when the pH probe is inserted into the insertion tube, which can reduce the safety risk of the reactor and extend the service life of the reactor.

[0045] Preferably, it further comprises a PH probe; the PH probe can be inserted into the insertion tube; the inner surface of the insertion tube 14 and the surface of the PH probe in contact with the insertion tube are both made of frosted glass.

[0046] The two frosted glass surfaces are in contact with each other. On the one hand, due to the small gap between the frosted glass, the steam in the reactor condenses between the two layers of frosted glass, forming a watertight structure of frosted glass-liquid-frosted glass; on the other hand, the frosted glass increases its contact area, and the sealing effect between the two layers of frosted glass is good due to the intermolecular force. Therefore, when the pH probe is inserted into the insertion tube, the entire glass reactor still has good sealing, so that the double-layer glass reactor does not leak liquid and can react under vacuum conditions.

[0047] Preferably, the insertion tube 14 is integrally formed with the kettle body 1 .

[0048] It is very difficult to make holes in double-layer glass. In order to solve this technical problem, the technical solution of the present invention uses borosilicate glass as raw material, and performs integrated molding according to the following process to obtain a double-layer glass reactor body with holes on the side wall. The glass ingredients are as follows: crush the raw materials silica sand (sandstone), soda ash, feldspar and boric acid into powder; weigh various powders according to the following mass percentage ratios, silica sand (sandstone) 50% to 60%, soda ash 10% to 15%, feldspar 10% to 15%, boric acid 8% to 17%; mix and stir the above powders into batch materials. The batch materials are sent to a glass melting furnace and melted into glass liquid at 1700°C. The 1500°C glass liquid is placed in a special mold for blowing. The formed kettle body is sent to an annealing kiln for annealing to balance the stress and prevent the kettle body from self-explosion and self-cracking.

[0049] In the above-mentioned kettle body blowing process, there are strict requirements for the air pressure. If the air pressure is too high, the bottom of the kettle body may be thin and the opening may be thick; if the air pressure is too low, the opening may be too thin or cannot be blown at all, resulting in a problem of material shortage at the mouth. Furthermore, in the technical solution of the present invention, a hole is opened in the upper middle part of the kettle body to form an insertion tube. Therefore, during the blowing process, the uneven air pressure may have a great impact on the forming of the kettle body. The forming of the kettle body is a combination of machine blowing and manual blowing. First, the machine is automatically blown in mode to form the middle opening. During the blowing process, the air pressure of the machine is controlled at 0.1~1Kpa; when forming at the opening, manual blowing is added while the machine is blowing to ensure that the opening of the kettle body can be formed in one time and the thickness is uniform.

[0050] Preferably, the kettle cover 11 and the kettle body 1 are detachably connected.

[0051] The kettle body can be equipped with various specifications or different kettle covers to adapt to different sol preparation processes. When the product process changes, the function of the reactor can be changed by simply replacing the flange-connected kettle cover.

[0052] Preferably, a polytetrafluoroethylene sealing gasket (not shown in the figure) is provided between the kettle body 1 and the kettle cover 11 .

[0053] The kettle body and kettle cover are made of borosilicate glass, which has excellent physical and chemical properties. A tetrafluoroethylene sealing ring is arranged between the kettle body and the kettle cover, so that the double-layer glass reactor has good sealing effect, high stability and good safety performance.

[0054] Preferably, it also includes a titration bottle 112, a distillation condenser, a thermocouple 4, a pressure gauge 5 and a pH probe 6; wherein the titration bottle 112, the distillation condenser, the thermocouple 4 and the pressure gauge 5 are respectively installed on the kettle cover 11 through the titration bottle interface, the distillation condenser interface, the thermocouple interface and the pressure gauge interface; the pH probe 6 is installed on the kettle body 1 through the insertion tube 14; the titration bottle 112, the distillation condenser, the thermocouple 4, the pressure gauge 4 and the pH probe 6 are all fixed on the fixing frame 2.

[0055] The pH probe includes a display screen, which can monitor the pH value of the reaction medium in the double-layer glass reactor in real time, and then add acid or alkali as needed to adjust the pH value of the reaction medium so that the acidity and alkalinity of the reaction medium always meet the process requirements.

[0056] The thermocouple is used to monitor the temperature of the reaction medium in real time.

[0057] The pressure gauge monitors the pressure in the reactor in real time.

[0058] Preferably, fixed seals are provided at the titration bottle interface, the distillation condenser interface, the thermocouple interface and the pressure gauge interface; and a rotating seal 7 is provided at the contact point between the kettle cover and the stirring shaft.

[0059] Sealing components are provided at various positions involving interface connections on the reactor cover, and fixed sealing or rotating sealing is selected according to the situation to ensure the sealing of the entire double-layer glass reactor interior to realize the reaction process under vacuum conditions.

[0060] Preferably, the titration bottle 112 includes an acid titration bottle and a base titration bottle.

[0061] The pH probe is inserted into the kettle through the insertion tube to detect the pH value of the reaction medium, and then an acid reagent or an alkali reagent is added to adjust the pH value of the sol according to the reading of the pH probe. The operation of adding acid or adding alkali can be automatically controlled by a controller, or the acid and alkali reagent can be manually added by manual monitoring.

[0062] Preferably, the distillation condenser comprises a distillation flask 115 , a distillation liquid receiving flask 114 and a cooling tube 113 ; the cooling tube 113 is coiled inside the distillation flask 115 ; and the distillation liquid receiving flask 114 is disposed below the distillation flask 115 .

[0063] The reaction medium in the kettle generates steam under the reaction temperature. When the steam rises into the distillation flask, it is condensed by the cooling tube coiled therein to form condensate; the condensate drips downward into the distillation liquid receiving flask, and flows back into the reactor after a certain amount.

[0064] Preferably, it also includes a water tank 151 and a water pump 152; the condenser 113 includes an upper water outlet and a lower water inlet; the water tank 151 is connected to the upper water outlet of the cooling pipe 113; the water pump 152 is connected to the lower water inlet of the cooling pipe 113; the water tank 151, the water pump 152 and the condenser 113 are connected in sequence through pipes to form a cooling water circulation system.

[0065] During distillation, the upper water outlet of the cooling tube is connected to the water outlet pipe, and the lower water inlet is connected to the water inlet pipe; the water pump transports the cooling water in the water tank to the lower water inlet of the cooling tube in the distillation flask through the water pump; after the cooling water completes indirect heat exchange with the steam in the distillation flask, the heat-absorbing water is transported back to the water tank through the upper water outlet for cooling.

[0066] A constant temperature controller may be provided in the water tank to adjust the temperature of the cooling water.

[0067] Preferably, it further comprises a vacuum pump 9 ; the vacuum pump 9 is connected to the double-layer glass reactor through the distillation flask 115 .

[0068] In actual production, the distillation flask can be connected to a vacuum pump according to process requirements to evacuate the kettle body; the vacuum conditions of the reaction can be controlled according to the reading of the pressure gauge.

[0069] Preferably, it further comprises a circulating medium temperature controller 10, one end of which is connected to the circulating medium inlet 12, and the other end of which is connected to the circulating medium outlet 13; the temperature range of the circulating medium is -80°C to 300°C.

[0070] In one embodiment of the present invention, the circulating medium temperature controller is a constant temperature heater for heating the medium fluid to keep the temperature of the medium fluid constant, so that when the medium circulates through the jacket structure, the kettle body temperature of the double-layer glass reactor can be kept stable.

[0071] Preferably, the agitator 3 also includes a motor 31 and a speed regulator 32; the motor 31 and the speed regulator 32 are both fixed on the fixed frame 2; one end of the motor 31 is connected to the speed regulator 32, and the other end is connected to the stirring shaft 33, and the speed of the agitator 3 is adjusted by the regulator 32.

[0072] The stirrer is driven by the motor; the rotation speed of the motor can be adjusted and displayed by the speed regulator.

[0073] The speed regulator is connected to a display screen, which can display the rotation speed of the stirrer in real time.

[0074] The thermocouple is connected to the display screen, and can display the temperature of the reaction medium in the double-layer glass reactor in real time.

[0075] Preferably, a universal wheel 21 and a brake pad 211 are provided at the bottom of the fixing frame 2; the universal wheel 21 is used to move the fixing frame 2; and the brake pad 221 is used to brake the universal wheel 21.

[0076] The kettle body and various components of the double-layer glass reactor are fixed on the fixing frame; the bottom corner of the fixing frame is provided with a universal wheel with a brake pad, which can make the whole device easy to move.

[0077] The double-layer glass reactor provided by the technical solution of the present invention can be used in the preparation of aerogel sol, can realize the precise control of sol reaction conditions, ensures the quality of aerogel products, and has good industrial value.

[0078] The technical features in the claims and / or the specification of the present invention may be combined, and the combination is not limited to the combination obtained by reference in the claims. The technical solution obtained by combining the technical features in the claims and / or the specification is also within the protection scope of the present invention.

[0079] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. A double-layer glass reactor for preparing aerogel sol, characterized in that: It includes: The kettle body is a jacket structure; the kettle body includes a circulating medium inlet and a circulating medium outlet; an insertion tube penetrating the side wall of the kettle body is arranged at the upper middle part of the kettle body; the insertion tube is integrally formed with the kettle body; a sol discharge port is arranged at the bottom of the kettle body; the glass ingredients are as follows: raw materials silica sand, soda ash, feldspar and boric acid are crushed into powder; various powders are weighed according to the following mass percentage ratios: silica sand 50% to 60%, soda ash 10% to 15%, feldspar 10% to 15%, boric acid 8% to 17% ; Mix and stir the above powders to form a batch material; send the batch material into a glass melting furnace and melt it into glass liquid at 1700°C; put the 1500°C glass liquid into a special mold for blowing; the molding of the kettle body adopts a combination of machine blowing and manual blowing, firstly, the machine is used for automatic blowing mode to form the middle opening, and the air pressure of the machine is controlled at 0.1~1Kpa during the blowing process; when forming at the opening, manual blowing is added while the machine is blowing; the formed kettle body is sent to the annealing kiln for annealing; a pH probe, the pH probe being insertable into the insertion tube; The kettle cover is arranged above the kettle body and connected to the kettle body through a flange; the kettle cover is provided with a feed inlet, a titration bottle interface, a distillation condenser interface, a thermocouple interface, a pressure gauge interface and an agitator interface; A fixed frame, on which the kettle body is fixedly mounted; The stirrer comprises a stirring shaft and a stirring paddle; the stirring shaft extends from the outside of the kettle cover through the stirring interface into the kettle body; the stirring paddle is arranged on the stirring shaft extending into the kettle body.

2. The double-layer glass reactor according to claim 1, characterized in that: The insertion tube is arranged obliquely upward, and the angle between the insertion tube and the vertical direction is 50±10°.

3. The double-layer glass reactor according to claim 1, characterized in that: The inner surface of the insertion tube and the surface of the pH probe in contact with the insertion tube are both made of frosted glass.

4. The double-layer glass reactor according to claim 1, characterized in that: The kettle cover and the kettle body are detachably connected.

5. The double-layer glass reactor according to claim 1, characterized in that: A polytetrafluoroethylene sealing gasket is arranged between the kettle body and the kettle cover.

6. The double-layer glass reactor according to claim 1, characterized in that: It also includes a titration bottle, a distillation condenser, a thermocouple, and a pressure gauge; wherein the titration bottle, the distillation condenser, the thermocouple, and the pressure gauge are respectively installed on the kettle cover through the titration bottle interface, the distillation condenser interface, the thermocouple interface, and the pressure gauge interface; the titration bottle, the distillation condenser, the thermocouple, the pressure gauge, and the pH probe are all fixed on the fixing frame.

7. The double-layer glass reactor according to claim 6, characterized in that: Fixed seals are arranged at the titration bottle interface, the distillation condenser interface, the thermocouple interface and the pressure gauge interface; and a rotating seal is arranged at the contact point between the kettle cover and the stirring shaft.

8. The double-layer glass reactor according to claim 6, characterized in that: The titration bottle comprises an acid titration bottle and an alkali titration bottle.

9. The double-layer glass reactor according to claim 1, characterized in that: The distillation condenser comprises a distillation flask, a distillation liquid receiving flask and a cooling tube; the cooling tube is coiled and arranged in the distillation flask; the distillation liquid receiving flask is arranged below the distillation flask.

10. The double-layer glass reactor according to claim 9, characterized in that: It also includes a water tank and a water pump; the condenser includes an upper water outlet and a lower water inlet; the water tank is connected to the upper water outlet of the cooling pipe; the water pump is connected to the lower water inlet of the cooling pipe; the water tank, the water pump and the condenser are connected in sequence through pipelines to form a cooling water circulation system.

11. The double-layer glass reactor according to claim 9, characterized in that: It also includes a vacuum pump; the vacuum pump is connected to the double-layer glass reactor through the distillation flask.

12. The double-layer glass reactor according to claim 1, characterized in that: It also includes a circulating medium temperature controller, one end of which is connected to the circulating medium inlet, and the other end is connected to the circulating medium outlet; the temperature range of the circulating medium is -80°C to 300°C.

13. The double-layer glass reactor according to claim 1, characterized in that: The agitator also includes a motor and a speed regulator; the motor and the speed regulator are both fixed on the fixing frame; one end of the motor is connected to the speed regulator, and the other end is connected to the agitator shaft, and the speed of the agitator is adjusted by the speed regulator.

14. The double-layer glass reactor according to claim 1, characterized in that: A universal wheel and a brake pad are arranged at the bottom of the fixing frame; the universal wheel is used to move the fixing frame; and the brake pad is used to brake the universal wheel.

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