Purification device for hexachloroethane mixture

By controlling the distillation process of hexachloroethane with a temperature detector and an electronically controlled valve, and combining this with a condenser to condense the high-temperature and high-pressure gaseous mixture, the problem of impurity carryover during distillation is solved, achieving high-purity purification and safe operation of hexachloroethane.

CN223788070UActive Publication Date: 2026-01-13YONGXING DONGYANG CHEM TECH CO LTD
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Patent Information

Application Number
CN202520188678.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-07
Publication Date
2026-01-13
Estimated Expiration
2035-02-07

AI Technical Summary

Technical Problem

Existing technologies make it difficult to effectively distinguish hexachloroethane from other substances in the discharge pipe during the distillation process, resulting in hexachloroethane carrying impurities, reducing purity and separation efficiency.

Method used

A temperature detector, controller, and electronically controlled valve are used in conjunction with a heating element and a condenser to control the discharge pipeline of hexachloroethane through distillation. This ensures that hexachloroethane is discharged separately through the second liquid outlet pipe and that the high-temperature, high-pressure gaseous mixture is condensed by the condenser to prevent leakage.

Benefits of technology

It significantly improves the purity and separation efficiency of hexachloroethane, ensuring operational safety and efficiency.

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Abstract

The utility model relates to the technical field of hexachloroethane mixture purification, in particular to a hexachloroethane mixture purification device. The hexachloroethane mixture purifying device comprises a supporting seat, a supporting frame, heating pipes, a distillation retort, a liquid discharge pipe, a cover plate, a first liquid outlet pipe and a second liquid outlet pipe, the supporting frame is fixedly connected in the supporting seat, the heating pipes are arranged on the supporting frame, the distillation retort is fixedly connected in the supporting frame, and the liquid discharge pipe is arranged in the distillation retort. The bottom of the distillation retort is connected and communicated with a drain pipe, the top of the distillation retort is covered with a cover plate, the right side of the distillation retort is connected and communicated with a first liquid outlet pipe, and the left side of the distillation retort is connected and communicated with a second liquid outlet pipe. Through the arrangement of the temperature detector, the controller, the electric control valve and the like, a hexachloroethane mixture can be effectively purified through a distillation method, it is ensured that hexachloroethane is independently discharged through the second liquid outlet pipe, carrying of other substances is avoided, and therefore the purity and the separation effect of hexachloroethane are remarkably improved.
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Description

Technical Field

[0001] This utility model relates to the field of purification technology for hexachloroethane mixtures, and in particular to a purification apparatus for hexachloroethane mixtures. Background Technology

[0002] Hexachloroethane is an organic compound belonging to the polychlorinated hydrocarbon class. It is a white or pale yellow solid at room temperature, odorless or with a slight aromatic odor. Hexachloroethane has been used as an intermediate in organic synthesis, a solvent, a fire extinguishing agent, and as a release agent for magnesium metal.

[0003] In practical applications, hexachloroethane is usually present as a mixture, which may contain other impurities or byproducts. The presence of these impurities not only affects the purity of hexachloroethane but may also adversely affect its performance and application effectiveness. Common purification methods for hexachloroethane mixtures include distillation, recrystallization, adsorption, and extraction. However, during distillation, if the discharge pipes for different components are not effectively separated, and hexachloroethane is discharged through a separate pipe, other substances may be carried along with the hexachloroethane, making it impossible to completely remove impurities and thus reducing the purity and separation efficiency of the hexachloroethane.

[0004] Therefore, there is a need for a purification device for hexachloroethane mixtures that can improve the purity of hexachloroethane. Utility Model Content

[0005] To overcome the drawback that if the discharge pipes for different components are not effectively separated during distillation, resulting in hexachloroethane being discharged from a separate pipe, other substances may be carried in the hexachloroethane, making it impossible to completely remove impurities and thus reducing the purity and separation effect of hexachloroethane, this invention provides a hexachloroethane mixture purification device that can improve the purity of hexachloroethane.

[0006] The technical solution is as follows: A purification device for a hexachloroethane mixture includes a support base, a support frame, heating tubes, a distillation tank, a drain pipe, a cover plate, a first outlet pipe, and a second outlet pipe. The support frame is fixedly connected inside the support base, and multiple heating tubes are installed on the support frame. The distillation tank is fixedly connected inside the support frame. The bottom of the distillation tank is connected to and communicates with the drain pipe. The top of the distillation tank is covered with a cover plate. The right side of the distillation tank is connected to and communicates with the first outlet pipe, and the left side of the distillation tank is connected to and communicates with the second outlet pipe. The device also includes a fixed frame, a temperature detector, a controller, and an electrically controlled valve. The fixed frame is fixedly connected to the cover plate, and the temperature detector is installed on the fixed frame. The controller is installed on the top of the temperature detector. Electrically controlled valves are installed on both the first and second outlet pipes, and the controller is electrically connected to the electrically controlled valves.

[0007] As a further preferred embodiment, it also includes a protective shell, a condenser, and a condenser tube. The protective shell is fixedly connected to both the first and second liquid outlet pipes. The condenser is installed on the protective shell, and the bottom of the condenser is connected to a condenser tube. The condenser tube is respectively arranged around the first and second liquid outlet pipes.

[0008] As a further preferred embodiment, it also includes a support plate, an electric actuator, and a connecting frame. The support plate is installed on the rear side of the support base, the electric actuator is installed on the support plate, and the connecting frame is installed on the cover plate. The telescopic rod of the electric actuator is connected to the connecting frame.

[0009] As a further preferred option, it also includes a heat insulation plate, which is fixedly connected to the front side of the support base.

[0010] As a further preferred option, a sealing ring is also included, with the sealing ring embedded in the bottom of the cover plate.

[0011] As a further preferred option, a sealing gasket is also included, with the temperature detector fitted with a sealing gasket.

[0012] Compared with the prior art, the present invention provides a purification device for a mixture of hexachloroethane, which has the following advantages: 1. By setting up a temperature detector, controller and electric control valve, the mixture of hexachloroethane can be effectively purified by distillation, ensuring that hexachloroethane is discharged separately through the second liquid outlet pipe, avoiding the carrying of other substances, thereby significantly improving the purity and separation effect of hexachloroethane.

[0013] 2. The condenser acts on the first and second liquid outlet pipes through the condenser tubes, enabling the high-temperature and high-pressure gaseous mixture to exchange heat effectively with the cooling medium, thereby releasing heat and undergoing a phase change, condensing it into a liquid state, and preventing the high-temperature and high-pressure gaseous mixture from leaking into the air.

[0014] 3. By controlling the extension of the electric push rod to open the cover and controlling the retraction of the electric push rod to close the cover, the automatic opening and closing of the cover is achieved, improving operational efficiency and safety. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the support plate, electric push rod, and connecting frame of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the support frame, heating tube, and distillation tank of this utility model.

[0018] Figure 4 This is a three-dimensional sectional view of the drain pipe, cover plate, and first outlet pipe of this utility model.

[0019] Figure 5 This is a three-dimensional sectional view of the mounting bracket, temperature detector, and controller of this utility model.

[0020] The components are: 1-support base, 2-support frame, 3-heating tube, 4-distillation tank, 5-drain pipe, 6-cover plate, 7-first outlet pipe, 8-second outlet pipe, 9-protective shell, 10-condenser, 11-condenser tube, 12-fixed frame, 13-temperature detector, 14-controller, 15-electric control valve, 16-support plate, 17-electric push rod, 18-connecting frame, 19-heat insulation plate, 20-sealing ring, 21-sealing gasket. Detailed Implementation

[0021] The present invention will be further described below with reference to specific embodiments. It should also be noted that, unless otherwise explicitly specified and limited, terms such as "setting," "installing," "connecting," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0022] Example 1: A purification apparatus for a mixture of hexachloroethane (see attached image). Figures 1-5 The system includes a support base 1, a support frame 2, heating tubes 3, a distillation tank 4, a drain pipe 5, a cover plate 6, a first outlet pipe 7, and a second outlet pipe 8. The support frame 2 is fixedly connected inside the support base 1. Several heating tubes 3 are installed on the support frame 2. The distillation tank 4 is fixedly connected inside the support frame 2. The bottom of the distillation tank 4 is connected to and connected to the drain pipe 5. The top of the distillation tank 4 is covered by a cover plate 6. The right side of the distillation tank 4 is connected to and connected to the first outlet pipe 7, and the left side of the distillation tank 4 is connected to and connected to the second outlet pipe 8. A fixing frame 12 is fixedly connected to the cover plate 6, and a temperature detector 13 is installed on the fixing frame 12. A controller 14 is installed on the top of the detector 13. An electric control valve 15 is installed on both the first liquid outlet pipe 7 and the second liquid outlet pipe 8. The controller 14 is electrically connected to the electric control valve 15. A heat insulation plate 19 is fixedly connected to the front side of the support base 1 to isolate heat and prevent high temperature from being conducted to the outside, thus protecting the safety of the operator. A sealing ring 20 is embedded in the bottom of the cover plate 6 to ensure the sealing between the cover plate 6 and the distillation tank 4 and to prevent steam leakage. A sealing gasket 21 is fitted on the temperature detector 13 to ensure the sealing between the temperature detector 13 and the cover plate 6 and to prevent steam from entering the temperature detector 13 and affecting the measurement accuracy.

[0023] When purifying a mixture of hexachloroethane, firstly, a suitable analytical method is selected to determine the ratio and boiling point of hexachloroethane and other components in the mixture. Next, the cover plate 6 is opened, and the hexachloroethane mixture is injected into the distillation tank 4. After injection, the cover plate 6 is closed. Subsequently, the heating element 3 and temperature detector 13 are turned on. The heating element 3 generates heat to heat the hexachloroethane mixture inside the distillation tank 4. Simultaneously, the temperature detector 13 monitors the temperature inside the tank in real time to ensure it remains within a safe range. When the detected temperature reaches the first pre-analyzed boiling point range, the controller 14 controls the electronically controlled valve 15 on the first outlet pipe 7 to open, allowing substances with boiling points below that of hexachloroethane to pass through the first outlet. The gaseous hexachloroethane is discharged and collected through pipe 7. When the detected temperature approaches the boiling point of hexachloroethane, the controller 14 controls the electric valve 15 on the second outlet pipe 8 to open, allowing the gaseous hexachloroethane to be discharged through the second outlet pipe 8 and collected centrally. Once the temperature exceeds the boiling point of hexachloroethane, the controller 14 immediately closes the electric valve 15 on the second outlet pipe 8 to stop the collection of hexachloroethane, and reopens the electric valve 15 on the first outlet pipe 7 to collect the high-boiling-point residue. Through the above operation, the hexachloroethane mixture can be effectively purified by distillation, ensuring that hexachloroethane is discharged separately through the second outlet pipe 8, avoiding the carrying of other substances, thereby significantly improving the purity and separation effect of hexachloroethane.

[0024] Example 2: Based on Example 1, please refer to... Figure 1 , Figure 3 and Figure 4 A protective shell 9 is fixedly connected to both the first liquid outlet pipe 7 and the second liquid outlet pipe 8. A condenser 10 is installed on the protective shell 9 by means of bolt connection. A condenser pipe 11 is connected to the bottom of the condenser 10. The condenser pipe 11 is respectively installed on the first liquid outlet pipe 7 and the second liquid outlet pipe 8. The protective shell 9 is used to protect the condenser 10 and the condenser pipe 11 to prevent the external environment from affecting them.

[0025] When collecting hexachloroethane or a mixture, the condenser 10 is turned on. The condenser 10 acts on the first liquid outlet pipe 7 and the second liquid outlet pipe 8 through the condenser pipe 11, so that the high-temperature and high-pressure gaseous mixture can effectively exchange heat with the cooling medium, thereby releasing heat and undergoing a phase change, condensing it into a liquid state, and preventing the high-temperature and high-pressure gaseous mixture from leaking into the air.

[0026] Please see Figure 2 A support plate 16 is bolted to the rear of the support base 1. An electric push rod 17 is bolted to the support plate 16. A connecting frame 18 is bolted to the cover plate 6. The telescopic rod of the electric push rod 17 is connected to the connecting frame 18.

[0027] When the hexachloroethane mixture needs to be injected into the distillation tank 4, the electric push rod 17 is activated first. The extension rod of the electric push rod 17 is extended, causing the connecting frame 18 to move upward, thereby opening the cover plate 6. After the hexachloroethane mixture is injected, the extension rod of the electric push rod 17 is retracted, causing the connecting frame 18 to move downward, thereby closing the cover plate 6. This series of operations realizes the automatic opening and closing of the cover plate 6, improving operational efficiency and safety.

[0028] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A purification apparatus for a mixture of hexachloroethane, comprising a support base (1), a support frame (2), heating tubes (3), a distillation tank (4), a drain pipe (5), a cover plate (6), a first outlet pipe (7), and a second outlet pipe (8), wherein the support base (1) is fixedly connected to the support frame (2), and multiple heating tubes (3) are provided on the support frame (2); the support frame (2) is fixedly connected to the support frame (2), the bottom of the distillation tank (4) is connected to and communicates with the drain pipe (5), the top of the distillation tank (4) is covered with a cover plate (6), the right side of the distillation tank (4) is connected to and communicates with the first outlet pipe (7), and the left side of the distillation tank (4) is connected to and communicates with the second outlet pipe (8), characterized in that: It also includes a mounting bracket (12), a temperature detector (13), a controller (14) and an electric control valve (15). The mounting bracket (12) is fixedly connected to the cover plate (6). The temperature detector (13) is installed on the mounting bracket (12). The controller (14) is installed on the top of the temperature detector (13). The electric control valve (15) is installed on both the first liquid outlet pipe (7) and the second liquid outlet pipe (8). The controller (14) is electrically connected to the electric control valve (15).

2. The apparatus for purifying a hexachloroethane mixture as described in claim 1, characterized in that: It also includes a protective shell (9), a condenser (10) and a condenser tube (11). The protective shell (9) is fixedly connected to the first liquid outlet pipe (7) and the second liquid outlet pipe (8). The condenser (10) is installed on the protective shell (9). The bottom of the condenser (10) is connected to the condenser tube (11). The condenser tube (11) is wound around the first liquid outlet pipe (7) and the second liquid outlet pipe (8) respectively.

3. The apparatus for purifying a hexachloroethane mixture as described in claim 2, characterized in that: It also includes a support plate (16), an electric push rod (17) and a connecting frame (18). The support plate (16) is installed on the back side of the support base (1), the electric push rod (17) is installed on the support plate (16), and the connecting frame (18) is installed on the cover plate (6). The telescopic rod of the electric push rod (17) is connected to the connecting frame (18).

4. The apparatus for purifying a hexachloroethane mixture as described in claim 3, characterized in that: It also includes a heat insulation plate (19), and the heat insulation plate (19) is fixedly connected to the front side of the support base (1).

5. The apparatus for purifying a hexachloroethane mixture as described in claim 4, characterized in that: It also includes a sealing ring (20), and the bottom of the cover plate (6) is provided with a sealing ring (20).

6. The apparatus for purifying a hexachloroethane mixture as described in claim 5, characterized in that: It also includes a sealing gasket (21), and the temperature detector (13) is fitted with a sealing gasket (21).