Sampling configuration of vacuum rectification system

Abstract

The utility model belongs to the technical field of chemical separation, and particularly relates to a vacuum rectification system sampling configuration which comprises a rectification tower body, the top of the rectification tower body is communicated with a first pipeline, the first pipeline is provided with a first valve, and the top of the first pipeline is provided with a collecting box. The top of the collecting box is connected with a vacuum pump through a pipeline, the vacuum pump is arranged at the top of the collecting box, and the bottom of the collecting box is communicated with a sampling configuration mechanism. The rectifying tower main body is respectively connected with the collecting box and the mounting box through different pipelines, and valves are arranged on the pipelines. By means of the design, an operator can conveniently control flowing of materials in the system, the valve is opened or closed according to actual requirements, precise control over the rectification process and sampling operation is achieved, and the operation flexibility and controllability of the system are improved.

Description

Technical Field

[0001] This utility model belongs to the field of chemical separation technology, specifically relating to a sampling configuration for a vacuum distillation system. Background Technology

[0002] In traditional vacuum distillation systems, the significant pressure difference between the system and the external environment during sampling makes it easy for air to enter the system when the sampling port is opened or the sampling container is changed. This air ingress can oxidize sensitive components in the sample, altering its composition and properties, thus affecting subsequent analytical results and product quality. Furthermore, some sampling devices cannot accurately control the sample volume, or are prone to sample volatilization or leakage during sampling, leading to inaccurate sampling results that fail to accurately reflect the composition and properties of the materials within the system. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a sampling configuration for a vacuum distillation system, thereby solving the problem that existing vacuum distillation systems are not convenient for normal sample extraction.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a sampling configuration for a vacuum distillation system, comprising a distillation column body, a first pipe connected to the top of the distillation column body, a first valve installed on the first pipe, a collection box installed at the top of the first pipe, a vacuum pump connected to the top of the collection box via a pipe, the vacuum pump being located at the top of the collection box, a sampling configuration mechanism connected to the bottom of the collection box, an installation box installed on the right side of the distillation column body, a second pipe connected between the distillation column body and the installation box, a second valve installed on the second pipe, and a support block connected to the top of the installation box and the bottom of the collection box.

[0005] Furthermore, the sampling configuration mechanism includes a sampling tube, a third valve is provided on the outer wall of the sampling tube, a sampling box is provided on the top of the sampling tube, an annular connecting groove is provided on the top of the sampling box, a through hole is provided on the bottom of the sampling box inside the annular connecting groove, a connecting ring is threaded to the inner wall of the annular connecting groove, a sampling test tube is connected to the bottom opening of the sampling box, and the connecting ring is located at the upper middle part of the sampling test tube;

[0006] Specifically, the sampling tube serves as the channel for material to flow from the collection box to the sampling site. The third valve on the outer wall precisely controls the sampling timing and flow rate, allowing operators to flexibly operate according to the distillation progress and analytical needs. The sampling box is the area for sample collection and preliminary processing. The annular connecting groove at the top, combined with the threaded connecting ring, ensures a reliable connection with the sampling test tube, guaranteeing a seal to prevent material leakage and air ingress, while also facilitating disassembly and replacement of the test tube to meet multiple sampling requirements.

[0007] Furthermore, the top of the sampling tube is connected to the collection box, the bottom of the sampling box is provided with an opening groove, and the two sides of the inner wall of the opening groove are connected to a limiting cavity. A stop block is provided in the limiting cavity, and a limiting rod is connected to the outer wall of the stop block. The limiting rod is threadedly connected to the collection box.

[0008] Specifically, this design enhances the robustness of the sampling box installation, enabling it to stably withstand material impacts and vibrations during system operation and sampling, preventing displacement or loosening that could lead to sampling failure or material leakage, and ensuring system sealing and sampling reliability.

[0009] Furthermore, a spring is sleeved on the outer wall of the limiting rod, and the spring is located inside the limiting cavity;

[0010] Specifically, the spring sleeved on the outer wall of the limiting rod is placed inside the limiting cavity. Utilizing the elastic buffering effect of the spring, it can absorb minor vibrations and impacts during system operation, further stabilize the connection between the sampling box and the collection box, prevent fatigue damage caused by long-term vibration due to rigid connection, extend the service life of the device, and continuously maintain a sealed state to ensure sampling accuracy.

[0011] Furthermore, a mounting ring is fixedly inserted and connected to the top of the sampling box, and the inner wall of the mounting ring is threadedly connected to the outer wall of the sampling tube corresponding to the position.

[0012] Specifically, it improves the stability of the sampling tube installation and facilitates disassembly, making it easier to clean and maintain the inside of the sampling box and ensuring that each sample is not contaminated.

[0013] Furthermore, the bottom of the main body of the distillation column is provided with support legs, and the bottom sides of the mounting box are provided with support bases;

[0014] Specifically, it ensures that during operation, sampling, and other processes, the equipment will not tilt or shake due to its own weight or external impact, maintaining a stable horizontal state of the system and creating favorable conditions for high-precision and safe distillation and sampling.

[0015] Furthermore, a discharge pipe is connected to the bottom of the main body of the distillation column, and a fourth valve is fixedly installed in the inner cavity of the discharge pipe;

[0016] Specifically, the discharge pipe connected to the bottom of the main body of the distillation column and the fourth valve fixedly installed in the inner cavity allow operators to easily open the valve after the distillation process is completed, discharge the remaining material in the column, facilitate subsequent cleaning and maintenance of the distillation column, and collect and reuse the discharged material to improve resource utilization, avoid material residue from affecting the next distillation effect, and ensure the continuous and efficient operation of the system.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. The main body of the distillation column of this utility model is connected to the collection box and the installation box through different pipes, and valves are installed on each pipe. This design allows operators to easily control the flow of materials in the system, open or close valves as needed, achieve precise control of the distillation process and sampling operations, and improve the operational flexibility and controllability of the system.

[0019] 2. The annular connecting groove at the top of the sampling box of this utility model is threadedly connected to the connecting ring, securely connecting the sampling tube to the opening at the bottom of the sampling box, ensuring the reliability of the connection and preventing leakage during sampling. Simultaneously, the stop block, limiting rod, and spring structure set in the limiting cavities on both sides of the inner wall of the bottom opening groove of the sampling box not only further enhance the stability of the connection between the sampling box and the collection box, but also play a certain sealing role, preventing outside air from entering the system and affecting the accuracy of sampling. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the external structure of the present utility model;

[0022] Figure 2 This is a schematic diagram of the combined structure of the discharge pipe and the fourth valve of this utility model;

[0023] Figure 3 This is a cross-sectional diagram of the sampling configuration mechanism of this utility model.

[0024] In the diagram: 1. Main body of the distillation column; 2. Second pipeline; 3. Second valve; 4. Main body of the distillation column; 5. First pipeline; 6. First valve; 7. Collection box; 8. Sampling and configuration mechanism; 801. Sampling tube; 802. Third valve; 803. Mounting ring; 804. Sampling box; 805. Connecting ring; 806. Sampling test tube; 807. Abutment block; 808. Limiting cavity; 809. Spring; 810. Limiting rod; 9. Vacuum pump; 10. Support block; 11. Support leg; 12. Discharge pipe; 13. Fourth valve. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1 to 3 This utility model provides a technical solution: a sampling configuration for a vacuum distillation system, including a distillation column body 4, a first pipe 5 connected to the top of the distillation column body 4, a first valve 6 installed on the first pipe 5, a collection box 7 installed at the top of the first pipe 5, a vacuum pump 9 connected to the top of the collection box 7 via a pipe, and the vacuum pump 9 is located at the top of the collection box 7, a sampling configuration mechanism 8 connected to the bottom of the collection box 7, an installation box 1 installed on the right side of the distillation column body 4, a second pipe 2 connected between the distillation column body 4 and the installation box 1, a second valve 3 installed on the second pipe 2, and a support block 10 connected to the top of the installation box 1 and the bottom of the collection box 7.

[0027] The sampling configuration mechanism 8 includes a sampling tube 801, a third valve 802 on the outer wall of the sampling tube 801, a sampling box 804 on the top of the sampling tube 801, an annular connecting groove on the top of the sampling box 804, a through hole on the bottom of the sampling box 804 inside the annular connecting groove, a connecting ring 805 threadedly connected to the inner wall of the annular connecting groove, a sampling test tube 806 connected to the bottom opening of the sampling box 804, and the connecting ring 805 located at the upper middle part of the sampling test tube 806.

[0028] Wherein: the top of the sampling tube 801 is connected to the collection box 7, the bottom of the sampling box 804 is provided with an opening groove, and the two sides of the inner wall of the opening groove are connected to a limiting cavity 808, a stop block 807 is provided in the limiting cavity 808, the outer wall of the stop block 807 is connected to a limiting rod 810, and the limiting rod 810 is threadedly connected to the collection box 7.

[0029] Wherein: a spring 809 is sleeved on the outer wall of the limiting rod 810, and the spring 809 is located in the limiting cavity 808.

[0030] Among them, the top of the sampling box 804 is fixedly connected with an installation ring 803, and the inner wall of the installation ring 803 is threadedly connected to the outer wall of the sampling tube 801 corresponding to the position.

[0031] Among them: the bottom of the main body 4 of the distillation column is provided with support legs 11, and the bottom sides of the mounting box 1 are provided with support seats.

[0032] Among them: the bottom of the main body 4 of the distillation column is connected to a discharge pipe 12, and a fourth valve 13 is fixedly installed in the inner cavity of the discharge pipe 12.

[0033] The working principle of the above embodiment is as follows: When in use, the vacuum pump 9 starts to work and evacuates the inside of the collection box 7 through the pipe connected to the top of the collection box 7. Under the action of vacuum suction, the vapor at the top of the distillation column body 4 can smoothly enter the collection box 7. After the third valve 802 on the sampling tube 801 is opened, the material in the collection box 7 can flow into the sampling tube 801. The material in the collection box 7 flows down along the sampling tube 801 and enters the sampling box 804. Then it flows into the sampling test tube 806 through the bottom opening of the sampling box 804. The mounting ring 803 at the top of the sampling box 804 is connected to the sampling tube 801 by threads, which plays a role in fixing and sealing to ensure that the material will not leak. The limiting cavities 808 on both sides of the bottom opening groove of the sampling box 804 are provided with abutments 807. The abutments 807 are connected to the collection box 7 by threads through the limiting rod 810. A spring 809 is sleeved on the outer wall of the limiting rod 810. The spring 809 provides a certain elastic force, so that the abutment 807 can stably abut against the connecting ring 805 in the middle of the sampling tube 806, thereby fixing the sampling tube 806 and preventing it from shaking or falling off. After sampling is completed, the third valve 802 is closed to cut off the material flow between the collection box 7 and the sampling tube 801. Then, the limiting rod 810 is rotated so that the abutment 807 no longer abuts against the connecting ring 805, and the operation is completed.

[0034] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vacuum distillation system sampling configuration, characterized by, The application relates to a distillation tower body (4), a first pipeline (5) is arranged on the top of the distillation tower body (4) in communication, a first valve (6) is arranged on the first pipeline (5), a collecting box (7) is arranged on the top of the first pipeline (5), a vacuum pump (9) is connected to the top of the collecting box (7) through a pipeline, the vacuum pump (9) is arranged on the top of the collecting box (7), a sampling configuration mechanism (8) is arranged on the bottom of the collecting box (7) in communication, a mounting box (1) is arranged on the right side of the distillation tower body (4), a second pipeline (2) is arranged between the distillation tower body (4) and the mounting box (1) in communication, a second valve (3) is arranged on the second pipeline (2), and a supporting block (10) is connected between the top of the mounting box (1) and the bottom of the collecting box (7). The sampling configuration mechanism (8) comprises a sampling tube (801), a third valve (802) is arranged on the outer wall of the sampling tube (801), a sampling box (804) is arranged on the top of the sampling tube (801), an annular connecting groove is formed in the top of the sampling box (804), a through hole is formed in the bottom of the sampling box (804) and inside the annular connecting groove, a connecting ring (805) is threadedly connected to the inner wall of the annular connecting groove, a sampling test tube (806) is connected to the opening in the bottom of the sampling box (804), and the connecting ring (805) is arranged on the upper middle part of the sampling test tube (806).

2. A sampling configuration for a reduced pressure distillation system according to claim 1, characterized in that: The top of the sampling tube (801) is connected to the collecting box (7) in communication, an opening groove is formed in the bottom of the sampling box (804), limit cavities (808) are arranged on the inner wall of the opening groove in communication, a limiting block (807) is arranged in the limit cavities (808), a limiting rod (810) is connected to the outer wall of the limiting block (807), and the limiting rod (810) is threadedly connected to the collecting box (7).

3. A sampling configuration for a reduced pressure distillation system according to claim 2, wherein: A spring (809) is arranged on the outer wall of the limiting rod (810) and in the limit cavities (808).

4. A sampling configuration for a reduced pressure distillation system according to claim 3, wherein: An installation ring (803) is fixedly connected to the top of the sampling box (804), and the inner wall of the installation ring (803) is threadedly connected to the outer wall of the sampling tube (801) in position correspondence.

5. A sampling configuration for a reduced pressure distillation system according to claim 4, wherein: Supporting legs (11) are arranged on the bottom of the distillation tower body (4), supporting seats are arranged on the bottom of the mounting box (1).

6. A sampling configuration for a reduced pressure distillation system according to claim 1, wherein: A discharge pipeline (12) is arranged on the bottom of the distillation tower body (4) in communication, and a fourth valve (13) is fixedly arranged in the inner cavity of the discharge pipeline (12).

7. A sampling configuration for a reduced pressure distillation system according to claim 1, wherein: ​

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