Negative pressure rectifying tower kettle equipment

Abstract

The utility model discloses negative pressure rectifying tower kettle equipment which comprises a tower kettle, a rectifying tower column and a valve body assembly, a kettle cover is arranged at the top of the tower kettle, a connecting column communicated with the rectifying tower column is arranged on the side wall of the tower kettle, a liquid discharge hole is formed in the bottom of the tower kettle, and an integrated extension column is arranged at the position, located at the liquid discharge hole, of the bottom of the tower kettle; the valve body assembly comprises a flow guide pipe, a piston, a connecting rod and a rotating piece, the top of the flow guide pipe is in sealed connection and communication with the bottom of the extension column, the piston is arranged in the extension column, the top end of the piston is in sealed connection with the liquid drainage hole, a liquid drainage opening is formed in one side of the flow guide pipe, one end of the connecting rod is connected with the piston, and the other end of the connecting rod is connected with the rotating piece. The rotating piece is in up-down driving connection with the piston through the connecting rod; the equipment has the advantages that the condition that heavy components cannot be completely poured out due to crystallization caused by temperature loss of the tower kettle in the previous operation and disassembly processes is avoided, and the equipment is simple in structure and convenient to use.

Description

Technical Field

[0001] The utility model relates to the field of distillation equipment, in particular to negative pressure distillation tower kettle equipment. Background Art

[0002] Negative pressure distillation is a separation process that uses the different volatilities of the components in the mixture to separate the components. Commonly used equipment includes plate distillation towers and packed distillation towers. During use, the tower kettle is heated so that the light components and heavy components in the tower kettle are separated in turn after heating and distillation, and discharged through the distillation column. However, there are always some heavy components or one type of heavy components that cannot be distilled and discharged. At this time, it is necessary to pour it out from the tower kettle; however, the current tower kettle needs to be disassembled before pouring it out. When disassembling, the heating of the tower kettle needs to be stopped. At this time, as the temperature of the tower kettle decreases, especially at room temperature, the remaining part of the heavy components in the tower kettle is easy to crystallize, difficult to flow, and cannot be easily poured out; in addition, there are also problems: (1) When pouring out the remaining heavy components in the tower kettle, the tower kettle and the distillation column need to be separated. The tower kettle needs to be removed from the heating jacket and then poured out from the glass port. The whole process takes a long time, is easy to crystallize, and is difficult to pour out; (2) When cleaning, it can only be cleaned from the glass port with a test tube brush, which is not cleaned properly; (3) It is easy to boil unevenly during heating. Therefore, it is urgent to provide a negative pressure distillation tower kettle equipment to solve the above problems. Summary of the invention

[0003] To this end, it is necessary to provide a negative pressure distillation tower kettle device that improves the experimental effect and enhances the user experience by setting a drain port at the bottom of the tower kettle.

[0004] To achieve the above-mentioned purpose, the inventor provides a negative pressure distillation tower kettle device, comprising: a tower kettle, a distillation tower column and a valve body assembly, wherein the top of the tower kettle is provided with a kettle cover, the side wall of the tower kettle is provided with a connecting column connected to the distillation tower column, the bottom of the tower kettle is provided with a drainage hole, and the bottom of the tower kettle located at the drainage hole is provided with an integrated extension column;

[0005] The valve body assembly includes a guide tube, a piston, a connecting rod and a rotating part. The top of the guide tube is sealed and connected to the bottom of the extension column and is communicated. The piston is arranged in the extension column, and the top of the piston is sealed and connected to the drainage hole. A drainage port is provided on one side of the guide tube. One end of the connecting rod is connected to the piston, and the other end is connected to the rotating part. The rotating part is connected to the piston through the connecting rod for up and down driving.

[0006] As a preferred structure of the utility model, a sealing gasket is provided on the top of the piston, and the sealing gasket is sealed and connected to the drainage hole.

[0007] As a preferred structure of the utility model, a polytetrafluoroethylene gasket is provided between the connection between the flow guide tube and the extension column.

[0008] As a preferred structure of the utility model, the guide tube and the extension column are fixedly connected by a clamp.

[0009] As a preferred structure of the utility model, the rotating part is a rotating handle, the connecting rod is a screw, a sealing flange is provided at the bottom of the guide tube, a ball nut is fixed on the sealing flange, and the rotating part is connected to the piston for up and down driving via the screw and the ball nut.

[0010] As a preferred structure of the utility model, an electric heating jacket and a temperature control button are arranged around or outside the lower part of the tower kettle.

[0011] As a preferred structure of the utility model, a thermometer extending to the interior of the tower kettle is provided on the side wall of the tower kettle.

[0012] As a preferred structure of the utility model, a cleaning port is provided on the side wall located in the middle of the tower kettle.

[0013] As a preferred structure of the utility model, it also includes a stirring assembly, which includes a stirring motor, a rotating shaft and a stirring blade. The rotating shaft is rotatably connected to the kettle cover through a sealed bearing, the bottom of the rotating shaft extends into the tower kettle, the stirring blade is arranged at the bottom of the rotating shaft, and the stirring motor is drivingly connected to the top end of the rotating shaft outside the tower kettle.

[0014] Different from the prior art, the above technical solution has the following beneficial effects:

[0015] This equipment sets an extension column and a drainage hole at the bottom of the tower kettle, and discharges the liquid in the tower kettle through the drainage port of the guide pipe, thereby effectively avoiding the situation in the past where the tower kettle loses temperature during the operation and disassembly process, resulting in crystallization and making it impossible to completely pour out the remaining heavy components; the setting of this equipment can effectively discharge the liquid in the tower kettle, without the need to frequently disassemble the tower kettle, which can effectively improve the experimental efficiency and avoid loss of temperature, and can effectively ensure the experimental effect; in addition, this tower kettle equipment has a simple structure and is easy to use, and can be widely used in tower kettle applications during the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the device structure described in the specific implementation method;

[0017] Figure 2 It is an enlarged view of the local structure of the device described in the specific implementation method.

[0018] Description of reference numerals:

[0019] 101. Tower kettle; 102. Kettle cover; 103. Connecting column; 104. Drain hole; 105. Extension column; 106. Distillation tower column; 2. Valve body assembly; 201. Flow guide tube; 202. Drain port; 203. Piston; 204. Sealing gasket; 205. Connecting rod; 206. Rotating part; 207. PTFE gasket; 208. Clamp; 209. Sealing flange; 210. Ball nut; 301. Electric heating jacket; 302. Temperature control button; 303. Thermometer; 304. Cleaning port; 305. Stirring motor; 306. Rotating shaft; 307. Stirring blade. DETAILED DESCRIPTION

[0020] In order to explain the technical content, structural features, achieved objectives and effects of the technical solution in detail, the following is a detailed description in conjunction with specific embodiments and accompanying drawings.

[0021] like Figure 1 and Figure 2 As shown, this embodiment provides a negative pressure distillation tower kettle device, including: a tower kettle 101, a distillation tower column 106 and a valve body assembly 2, a kettle cover 102 is provided on the top of the tower kettle 101, a connecting column 103 connected to the distillation tower column is provided on the side wall of the tower kettle, a drainage hole 104 is provided at the bottom of the tower kettle, and an integrated extension column 105 is provided at the bottom of the tower kettle located at the drainage hole 104;

[0022] The valve body assembly 2 includes a guide tube 201, a piston 203, a connecting rod and a rotating member. The top of the guide tube is sealed and connected to the bottom of the extension column and communicated. The piston 203 is arranged in the extension column 105. The top of the piston 203 is sealed and connected to the drainage hole 104. A drainage port 202 is arranged on one side of the guide tube 201. The drainage port 202 is communicated with the guide tube 201 and is arranged tilted downward. One end of the connecting rod is connected to the piston and the other end is connected to the rotating member 206. The rotating member is connected to the piston through the connecting rod. In the specific implementation process of this embodiment, when it is necessary to discharge the liquid in the tower kettle, the rotating member can be a rotating handle, that is, the bolt is driven to rotate by the rotating handle, so that the top of the piston is separated from the drainage hole. At this time, the liquid in the tower kettle can flow downward and be discharged from the drainage port to complete the liquid discharge operation; when the discharge is completed, the drainage hole can be closed by the rotating handle, the screw and the piston. Before closing, if the inner wall of the tower kettle needs to be cleaned, cleaning liquid can be added into the tower kettle. After cleaning, the cleaning liquid can be discharged through the drain hole and drain port. During the whole process, there is no need to remove the kettle cover, the tower kettle, the distillation column, and the heating components for heating the tower kettle. This avoids the situation in which the tower kettle loses temperature during the disassembly process, causing crystallization and making it impossible to completely pour out the heavy components. It can also ensure the experimental results and reduce errors.

[0023] like Figure 1As shown, in the above embodiment, a sealing gasket 204 is provided on the top of the piston 203, and the sealing gasket 204 is sealed and connected to the drainage hole 104. A polytetrafluoroethylene gasket 207 is provided between the connection between the guide tube 201 and the extension column 105. The guide tube 201 and the extension column 106 are fixedly connected by a clamp 208. The rotating member 206 is a rotating handle, the connecting rod 205 is a screw, and a sealing flange 209 is provided at the bottom of the guide tube 201. A ball nut 210 is fixedly provided on the sealing flange 209, and the rotating member is connected to the piston through the screw and the ball nut.

[0024] In some embodiments, Figure 1 As shown, in order to facilitate heating the tower kettle 101, an electric heating sleeve 301 and a temperature control button 302 are arranged around or outside the lower part of the tower kettle, that is, the heating temperature is adjusted in real time by the temperature control button. And in order to facilitate the detection of the temperature inside the tower kettle, in this embodiment, a thermometer 303 extending to the inside of the tower kettle is arranged on the side wall of the tower kettle. In addition, in different embodiments, in order to facilitate the cleaning of the tower kettle and avoid the need to open the kettle cover and various components on the kettle cover every time the cleaning is performed, in this embodiment, a cleaning port 304 can be directly opened on the side wall in the middle of the tower kettle. In some embodiments, the device also includes a stirring assembly, the stirring assembly includes a stirring motor 305, a rotating shaft 306 and a stirring blade 307, the rotating shaft is rotatably connected to the kettle cover through a sealed bearing, the bottom of the rotating shaft extends into the tower kettle, the stirring blade is arranged at the bottom of the rotating shaft, and the stirring motor is drivingly connected to the top of the rotating shaft outside the tower kettle; that is, in this embodiment, by setting the stirring assembly, the reaction efficiency of the liquid in the tower kettle can be effectively improved and the heating can be made more uniform.

[0025] It should be noted that although the above embodiments have been described in this article, this does not limit the scope of patent protection of the utility model. Therefore, based on the innovative concept of the utility model, changes and modifications to the embodiments described herein, or equivalent structural or equivalent process transformations made using the contents of the utility model specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included in the scope of patent protection of the utility model.

Claims

1. A negative pressure distillation tower kettle equipment, It is characterized in that include: A tower kettle, a distillation column and a valve body assembly, wherein the top of the tower kettle is provided with a kettle cover, the side wall of the tower kettle is provided with a connecting column connected to the distillation column, the bottom of the tower kettle is provided with a drainage hole, and the bottom of the tower kettle located at the drainage hole is provided with an integrated extension column; The valve body assembly includes a guide tube, a piston, a connecting rod and a rotating part. The top of the guide tube is sealed and connected to the bottom of the extension column and is communicated. The piston is arranged in the extension column, and the top of the piston is sealed and connected to the drainage hole. A drainage port is provided on one side of the guide tube. One end of the connecting rod is connected to the piston, and the other end is connected to the rotating part. The rotating part is connected to the piston through the connecting rod for up and down driving.

2. The negative pressure distillation tower reactor equipment according to claim 1, Features: A sealing gasket is provided on the top of the piston, and the sealing gasket is sealed and connected to the drainage hole.

3. The negative pressure distillation tower reactor equipment according to claim 1, Features: A polyfluoro gasket is provided between the connection of the flow guide tube and the extension column.

4. The negative pressure distillation tower reactor equipment according to claim 3, Features: The flow guide tube and the extension column are fixedly connected via a clamp.

5. The negative pressure distillation tower reactor equipment according to claim 1, Features: The rotating part is a rotating handle, the connecting rod is a screw rod, a sealing flange is provided at the bottom of the guide tube, a ball nut is fixed on the sealing flange, and the rotating part is connected to the piston for up and down driving via the screw rod and the ball nut.

6. The negative pressure distillation tower bottom equipment according to any one of claims 1 to 5, Features: An electric heating jacket and a temperature control button are arranged around or on the outside of the lower part of the tower kettle.

7. The negative pressure distillation tower bottom equipment according to any one of claims 1 to 5, Features: A thermometer extending to the interior of the tower kettle is arranged on the side wall of the tower kettle.

8. The negative pressure distillation tower bottom equipment according to any one of claims 1 to 5, Features: A cleaning port is provided on the side wall in the middle of the tower kettle.

9. The negative pressure distillation tower bottom equipment according to any one of claims 1 to 5, Features: It also includes a stirring component, which includes a stirring motor, a rotating shaft and a stirring blade. The rotating shaft is rotatably connected to the kettle cover through a sealed bearing, the bottom of the rotating shaft extends into the tower kettle, the stirring blade is arranged at the bottom of the rotating shaft, and the stirring motor is drivingly connected to the top of the rotating shaft outside the tower kettle.

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