Rectifying kettle for rectifying and purifying chloroethane

Abstract

The utility model relates to the technical field of rectifying kettles, and discloses a rectifying kettle for rectifying and purifying chloroethane, which comprises a main body mechanism and an auxiliary mechanism, the auxiliary mechanism is positioned at the upper end of the main body mechanism, and the main body mechanism comprises a lower kettle, a flange and a liquid membrane separator; according to the rectifying still for rectifying and purifying the chloroethane, the main body mechanism is mounted, so that a liquid membrane separator plays a role in separation, the upper still fixes a feeding pipe and an exhaust pipe, a fixing frame fixes a rotating motor, the fixing and stability of the rotating motor are improved, the rotating motor provides power, and a rotating shaft fixes a rotating shaft; the rotating shaft drives the bubble pricking needle to rotate to prick generated bubbles, so that the problem of unsmooth gas rising caused by more bubbles in the rectification process is solved, the rectification efficiency is improved, the bubble pricking needle plays a role in pricking the bubbles, the heating pipe plays a role in heating liquid, and the heat preservation layer plays a role in heat preservation, so that the temperature in the kettle is kept consistent; the practicability of the rectifying still for rectifying and purifying the chloroethane is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of distillation kettles, in particular to a distillation kettle for distillation and purification of ethyl chloride. Background Art

[0002] Distillation is a separation process that uses the different volatilities of components in a mixture to separate them. Commonly used equipment includes plate distillation towers and packed distillation towers. The principle and equipment flow of precision distillation are the same as those of ordinary distillation, except that the relative volatility between components in the system to be separated is small (<1.05~1.10), so high-efficiency precision packing is used to achieve separation and purification of the components to be separated.

[0003] The existing patent document with publication number CN214050505U discloses a multi-effect purification distillation kettle, including a liquid storage tank, a first outlet is provided on one side of the liquid storage tank, and a first through-tube is provided at the first outlet; a liquid film evaporator is provided at one end of the liquid storage tank, and the liquid storage tank is connected to the liquid film evaporator through the first through-tube; a dry gas cabinet and a mixed material tower are provided at one end of the liquid film evaporator, a second outlet is provided at the top of the liquid film evaporator, a third outlet is provided at the bottom of the liquid film evaporator, and a second through-tube is provided at the second outlet, and a third through-tube is provided at the third outlet, and the liquid film evaporator is connected to the dry gas cabinet and the mixed material tower through the second through-tube and the third through-tube. This multi-effect purification distillation kettle performs the initial separation of the difluoromonochloroethane distillation kettle residual liquid mixture, and then purifies the obtained difluorotrichloroethane crude product through a multi-effect distillation tower, so that the content of difluorochloroethane obtained can reach 99.9%, and the content of difluorotrichloroethane can reach 95%, effectively improving the product quality.

[0004] The existing patent document with publication number CN214050505U discloses a multi-effect purification distillation kettle. During the distillation of ethyl chloride, many bubbles will be generated. A large number of bubbles will float on the liquid surface of ethyl chloride, resulting in poor distillation effect of ethyl chloride. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] The utility model aims to provide a distillation kettle for distilling and purifying ethyl chloride, so as to solve the problem in the above background technology that a lot of bubbles will be generated during the distillation of ethyl chloride, and a large number of bubbles will float on the liquid surface of ethyl chloride, resulting in poor distillation effect of ethyl chloride.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a distillation kettle for distillation and purification of ethyl chloride, comprising a main mechanism and an auxiliary mechanism, wherein the auxiliary mechanism is located at the upper end of the main mechanism, and the main mechanism comprises a lower kettle, a flange, and a liquid membrane separator, wherein the flange is fixedly mounted at the upper end of the lower kettle, and the liquid membrane separator is movably mounted at the upper end of the flange;

[0009] The main structure also includes an upper kettle, a fixing frame, a rotating motor, a rotating shaft, a rotating shaft, a blistering needle, a heating tube and a heat preservation layer. The upper kettle is installed at the upper end of the liquid membrane separator, and the liquid membrane separator plays a role of separation. The upper kettle fixes the feed pipe and the exhaust pipe.

[0010] Preferably, the fixing frame is movably mounted on the upper end of the groove of the lower kettle, and the rotating motor is fixedly mounted in the middle of the fixing frame. The fixing frame fixes the rotating motor to improve the fixation and stability of the rotating motor, and the rotating motor provides power.

[0011] Preferably, the rotating shaft is fixedly mounted on the lower end of the rotating motor, and the rotating shaft is fixedly mounted on the left and right ends of the rotating shaft. The rotating shaft fixes the rotating shaft, and the rotating shaft drives the bubbling needle to rotate to puncture the generated bubbles, thereby solving the problem of too many bubbles in the distillation process causing poor gas rising and improving the distillation efficiency.

[0012] Preferably, the bubble piercing needle is fixedly installed at the upper and lower ends of the rotating shaft, the heating tube is fixedly installed at the right end of the inner wall of the lower kettle, and the thermal insulation layer is fixedly installed at the right end of the heating tube. The bubble piercing needle plays a role in puncturing bubbles, the heating tube plays a role in heating the liquid, and the thermal insulation layer plays a role in keeping heat, so that the temperature in the kettle remains consistent.

[0013] Preferably, the auxiliary mechanism includes a fixed leg, a discharge pipe, a solenoid valve A, a feed pipe, an exhaust pipe, a solenoid valve B and a filter cartridge, and the fixed leg is fixedly installed at the lower end of the lower kettle.

[0014] Preferably, the discharge pipe is fixedly installed in the middle of the lower end of the lower kettle, the solenoid valve A is fixedly installed at the outer end of the discharge pipe, and the feed pipe is fixedly installed at the left end of the upper kettle. The discharge pipe is used to discharge the ethyl chloride after distillation, and the solenoid valve A controls the switch of the discharge pipe.

[0015] Preferably, the exhaust pipe is fixedly installed at the right end of the upper kettle, the solenoid valve B is fixedly installed at the outer end of the middle part of the exhaust pipe, and the filter cartridge is movably installed at the right end of the exhaust pipe. The exhaust pipe is used to discharge the air pressure in the kettle, and the solenoid valve B controls the exhaust. The filter cartridge is detachable and contains activated carbon filter cotton to filter the exhausted gas.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The distillation kettle for rectification and purification of ethyl chloride realizes the separation function of the liquid membrane separator through the installation of the main mechanism. The upper kettle fixes the feed pipe and the exhaust pipe, and the fixed frame fixes the rotating motor to improve the fixation and stability of the rotating motor. The rotating motor provides power, and the rotating shaft fixes the rotating shaft. The rotating shaft drives the bubbling needle to rotate to puncture the generated bubbles, thereby solving the problem that the gas rises poorly due to a large number of bubbles in the distillation process, and improving the distillation efficiency. The bubbling needle plays the role of puncturing the bubbles, the heating tube plays the role of heating the liquid, and the insulation layer plays the role of heat preservation, so that the temperature in the kettle remains consistent, thereby improving the practicality of the distillation kettle for rectification and purification of ethyl chloride;

[0018] 2. The distillation kettle for rectification and purification of ethyl chloride, through the installation of auxiliary mechanisms, realizes that the discharge pipe is used to discharge the ethyl chloride after distillation, the electromagnetic valve A controls the switch of the discharge pipe, the exhaust pipe is used to discharge the air pressure in the kettle, the electromagnetic valve B realizes the control of exhaust, the filter cartridge is detachable, and the activated carbon filter cotton inside is used to filter the discharged gas, thereby improving the safety of the distillation kettle for rectification and purification of ethyl chloride. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the auxiliary mechanism structure of the utility model;

[0022] Figure 4 It is a partial enlarged structural schematic diagram of the main mechanism of the utility model.

[0023] In the figure: 1. main mechanism; 101. lower kettle; 102. flange; 103. liquid membrane separator; 104. upper kettle; 105. fixed frame; 106. rotating motor; 107. rotating shaft; 108. rotating shaft; 109. blister needle; 110. heating tube; 111. insulation layer; 2. auxiliary mechanism; 201. fixed leg; 202. discharge pipe; 203. solenoid valve A; 204. feed pipe; 205. exhaust pipe; 206. solenoid valve B; 207. filter cartridge. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-Figure 4 The utility model provides a technical solution: a distillation kettle for distillation and purification of ethyl chloride, comprising a main mechanism 1 and an auxiliary mechanism 2, the auxiliary mechanism 2 is located at the upper end of the main mechanism 1, the main mechanism 1 comprises a lower kettle 101, a flange 102, and a liquid membrane separator 103, the flange 102 is fixedly mounted on the upper end of the lower kettle 101, and the liquid membrane separator 103 is movably mounted on the upper end of the flange 102; the main mechanism 1 also comprises an upper kettle 104, a fixing frame 105, a rotating motor 106, a rotating shaft 107, a rotating shaft 108, a pricking needle 109, a heating tube 110 and a heat preservation layer 111, the upper kettle 104 is mounted on the upper end of the liquid membrane separator 103, the fixing frame 105 is movably mounted on the upper end of the groove of the lower kettle 101, the rotating motor 106 is fixedly mounted on the middle part of the fixing frame 105, the rotating shaft 107 is fixedly mounted on the lower end of the rotating motor 106, and the rotating shaft 108 is fixedly mounted on the rotating shaft 109. The left and right ends of the rotating shaft 107, the bubbling needle 109 is fixedly installed on the upper and lower ends of the rotating shaft 108, the heating tube 110 is fixedly installed on the right end of the inner wall of the lower kettle 101, the thermal insulation layer 111 is fixedly installed on the right end of the heating tube 110, the liquid membrane separator 103 plays a role of separation, the upper kettle 104 fixes the feed pipe 204 and the exhaust pipe 205, the fixing frame 105 fixes the rotating motor 106, improves the fixation and stability of the rotating motor 106, the rotating motor 106 provides power, the rotating shaft 107 fixes the rotating shaft 108, the rotating shaft 108 drives the bubbling needle 109 to rotate and puncture the generated bubbles, solves the problem that there are too many bubbles in the distillation process and the gas rises poorly, improves the distillation efficiency, the bubbling needle 109 plays the role of puncturing the bubbles, the heating tube 110 plays the role of heating the liquid, and the thermal insulation layer 111 plays the role of heat preservation, so that the temperature in the kettle remains consistent.

[0026] The auxiliary mechanism 2 includes a fixed leg 201, a discharge pipe 202, a solenoid valve A203, a feed pipe 204, an exhaust pipe 205, a solenoid valve B206 and a filter cartridge 207. The fixed leg 201 is fixedly installed at the lower end of the lower kettle 101, the discharge pipe 202 is fixedly installed at the middle of the lower end of the lower kettle 101, the solenoid valve A203 is fixedly installed at the outer end of the discharge pipe 202, the feed pipe 204 is fixedly installed at the left end of the upper kettle 104, and the exhaust pipe 205 is fixedly installed at the upper kettle 104. At the right end of the kettle 104, the solenoid valve B206 is fixedly installed at the outer end of the middle part of the exhaust pipe 205, and the filter cartridge 207 is movably installed at the right end of the exhaust pipe 205. The discharge pipe 202 is used to discharge the ethyl chloride after distillation. The solenoid valve A203 controls the switch of the discharge pipe 202. The exhaust pipe 205 is used to discharge the air pressure in the kettle. The solenoid valve B206 realizes the control of exhaust. The filter cartridge 207 is detachable and contains activated carbon filter cotton to filter the discharged gas.

[0027] Working principle: When in use, the feed liquid enters through the feed pipe 204, is separated by the liquid membrane separator 103, and enters the lower kettle 101. The rotating motor 106 provides power to drive the rotating shaft 107 to rotate, so that the rotating shaft 108 drives the bubble piercing needle 109 to rotate to pierce the generated bubbles, thereby solving the problem of too many bubbles in the distillation process causing poor gas rising and improving the distillation efficiency. The heating tube 110 heats the liquid, and the insulation layer 111 keeps the temperature in the kettle consistent. The discharge pipe 202 is used to discharge the ethyl chloride after distillation. The solenoid valve A203 controls the switch of the discharge pipe 202. The exhaust pipe 205 is used to discharge the air pressure in the kettle. The solenoid valve B206 controls the exhaust. The filter cartridge 207 is detachable and contains activated carbon filter cotton to filter the exhausted gas.

[0028] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A distillation kettle for distillation and purification of ethyl chloride, comprising a main mechanism (1) and an auxiliary mechanism (2), characterized in that: The auxiliary mechanism (2) is located at the upper end of the main mechanism (1); the main mechanism (1) comprises a lower kettle (101), a flange (102), and a liquid membrane separator (103); the flange (102) is fixedly mounted on the upper end of the lower kettle (101); and the liquid membrane separator (103) is movably mounted on the upper end of the flange (102); The main body mechanism (1) further comprises an upper kettle (104), a fixing frame (105), a rotating motor (106), a rotating shaft (107), a rotating shaft (108), a blistering needle (109), a heating tube (110) and a heat-insulating layer (111); the upper kettle (104) is installed at the upper end of the liquid membrane separator (103).

2. A distillation kettle for distillation and purification of ethyl chloride according to claim 1, characterized in that: The fixing frame (105) is movably mounted on the upper end of the groove of the lower kettle (101), and the rotating motor (106) is fixedly mounted on the middle part of the fixing frame (105).

3. A distillation kettle for distillation and purification of ethyl chloride according to claim 2, characterized in that: The rotating shaft (107) is fixedly mounted on the lower end of the rotating motor (106), and the rotating shaft (108) is fixedly mounted on the left and right ends of the rotating shaft (107).

4. A distillation kettle for distillation and purification of ethyl chloride according to claim 3, characterized in that: The blister needle (109) is fixedly mounted on the upper and lower ends of the rotating shaft (108), the heating tube (110) is fixedly mounted on the right end of the inner wall of the lower kettle (101), and the heat-insulating layer (111) is fixedly mounted on the right end of the heating tube (110).

5. A distillation kettle for distillation and purification of ethyl chloride according to claim 4, characterized in that: The auxiliary mechanism (2) comprises a fixed leg (201), a discharge pipe (202), a solenoid valve A (203), a feed pipe (204), an exhaust pipe (205), a solenoid valve B (206) and a filter cartridge (207); the fixed leg (201) is fixedly mounted on the lower end of the lower kettle (101).

6. A distillation kettle for distillation and purification of ethyl chloride according to claim 5, characterized in that: The discharge pipe (202) is fixedly installed at the middle of the lower end of the lower kettle (101), the solenoid valve A (203) is fixedly installed at the outer end of the discharge pipe (202), and the feed pipe (204) is fixedly installed at the left end of the upper kettle (104).

7. A distillation kettle for distillation and purification of ethyl chloride according to claim 6, characterized in that: The exhaust pipe (205) is fixedly mounted on the right end of the upper kettle (104), the solenoid valve B (206) is fixedly mounted on the outer end of the middle part of the exhaust pipe (205), and the filter cartridge (207) is movably mounted on the right end of the exhaust pipe (205).

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