Octafluorocyclobutane steel cylinder detection system

Abstract

The utility model belongs to the technical field of gas cylinder detection, and particularly relates to an octafluorocyclobutane steel cylinder detection system. Comprising an octafluorocyclobutane steel cylinder, an outlet of the octafluorocyclobutane steel cylinder is connected with a filling pipeline, a filling control valve is arranged on the filling pipeline, and a steel cylinder control valve is arranged on an outlet pipeline of the octafluorocyclobutane steel cylinder; an outlet of the octafluorocyclobutane steel cylinder is connected with a detection sample reserving tank through a pipeline, an inlet of the detection sample reserving tank is provided with a sample reserving tank control valve, an outlet of the detection sample reserving tank is respectively connected with a sampling detection pipeline and a vacuum replacement pipeline, and the sampling detection pipeline and the vacuum replacement pipeline are respectively provided with a sampling control valve and a vacuumizing control valve; a control system is further included. Through automatic detection, the gas cylinder connecting and dismounting frequency is remarkably reduced, the workload of workers is reduced, misoperation is avoided, the detection efficiency and accuracy are improved, and meanwhile the product quality and operation safety are guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas cylinder detection, and in particular relates to an octafluorocyclobutane cylinder detection system. Background Art

[0002] In the existing filling and testing process of octafluorocyclobutane cylinders, the cylinders are usually removed after filling and then transported to a special testing area for testing. This process is not only labor-intensive and inefficient, but also has many potential problems. First, frequent disconnection of the cylinder increases the risk of damage to the cylinder valve, which in turn affects the sealing and service life of the cylinder. Secondly, if the pipeline replacement is unqualified, it will directly affect the purity and quality of the components in the cylinder. Furthermore, each disconnection of the cylinder requires on-site operation by staff, which not only increases labor costs but also reduces overall work efficiency. In addition, the existing detection methods still have problems such as untimely detection and slow feedback of test results, which cannot meet the needs of modern and efficient production. Therefore, there is an urgent need for a new type of octafluorocyclobutane cylinder detection system that can perform online detection directly after filling, avoid the cumbersome process of disconnecting the cylinder, improve work efficiency, reduce costs, and ensure the purity and quality of the components in the cylinder. Utility Model Content

[0003] In view of the above deficiencies in the prior art, the purpose of the utility model is to provide an octafluorocyclobutane cylinder detection system, which, through automated detection, significantly reduces the frequency of connecting and disconnecting gas cylinders, reduces the workload of personnel, avoids misoperation, improves detection efficiency and accuracy, and at the same time ensures product quality and operational safety.

[0004] The utility model is realized by adopting the following technical solutions:

[0005] The octafluorocyclobutane cylinder detection system comprises an octafluorocyclobutane cylinder, the outlet of the octafluorocyclobutane cylinder is connected to a filling pipeline, and a filling control valve is arranged on the filling pipeline; the outlet of the octafluorocyclobutane cylinder is connected to a detection sample tank through a pipeline, the inlet of the detection sample tank is provided with a sample tank control valve, the outlet of the detection sample tank is respectively connected to a sampling detection pipeline and a vacuum replacement pipeline, and the sampling detection pipeline and the vacuum replacement pipeline are respectively provided with a sampling control valve and a vacuum control valve; and a control system is also included.

[0006] The inlet of the filling pipeline is connected with a filling pump, and the other end of the filling pump is connected with the finished product storage tank.

[0007] The outlet of the vacuum replacement pipeline is connected to a vacuum pump, and the other end of the vacuum pump is connected to a production system through a pipeline.

[0008] The outlet of the sampling and testing pipeline is connected to an online gas chromatograph, the outlet of the online gas chromatograph is connected to a residual gas recovery pipeline, and the other end of the residual gas recovery pipeline is connected to a production system.

[0009] The control system is electrically connected to the filling control valve, the filling pump, the sample tank control valve, the sampling control valve, the vacuum control valve, the vacuum pump and the online gas chromatograph respectively.

[0010] The number of the detection sample retaining tanks is more than three groups to ensure the accuracy of the detection.

[0011] The number of the octafluorocyclobutane cylinders is more than one group, so multiple groups of filling can be carried out simultaneously.

[0012] The working principle of the device is as follows:

[0013] After all pipelines are connected, start the vacuum pump, open the vacuum control valve, and replace the sample tank and octafluorocyclobutane cylinder respectively. After the replacement is completed, close the vacuum control valve, open the sampling control valve, start the online gas chromatograph to detect the gas component content in the sample tank and octafluorocyclobutane cylinder. If the test is qualified, close the sampling control valve, vacuum pump and sample tank control valve, start the filling pump, open the filling control valve, and start filling the octafluorocyclobutane cylinder. After filling, close the filling control valve, open the sample tank control valve, and allow the gas in the octafluorocyclobutane cylinder to enter the sample tank for testing, and let it stand for 30 minutes to mix completely. After standing, close the sample tank control valve and remove the octafluorocyclobutane cylinder. Open the sampling control valve and start the online gas chromatograph to detect the gas in the sample tank. After the detection is completed, the residual gas in the online gas chromatograph is recovered to the production system through the residual gas recovery pipeline. The remaining gas in the sample tank is recovered to the production system through the vacuum replacement pipeline and vacuum pump when the device is replaced next time. The whole process is controlled by the control system and no manual operation is required.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The octafluorocyclobutane cylinder detection system described in the utility model, after the octafluorocyclobutane cylinder is filled, the sample in the sample tank is used for detection, and the octafluorocyclobutane cylinder does not need to be connected to the detection pipeline again, thereby greatly reducing the frequency of connecting and disassembling the bottle valve, effectively extending the service life of the bottle valve, and reducing the risk of leakage caused by frequent connection and disassembly. Secondly, the detection process of the system can be automated, which not only reduces the workload of the detection personnel, but also improves the accuracy and consistency of the detection. Furthermore, after the octafluorocyclobutane cylinder is filled and removed, it does not need to be connected to the detection pipeline again, which avoids the problem of excessive components in the octafluorocyclobutane cylinder that may be caused by personnel misoperation, and further guarantees product quality and safety. In addition, the on-site detection process of the system can be remotely controlled by DCS, and can also be set to realize automatic operation, which not only reduces the direct operation of personnel, improves the level of automation, but also realizes intrinsic safety. Finally, the system will not delay detection because the personnel are busy with other work, and the online gas chromatograph can automatically and continuously detect, thereby greatly improving the detection efficiency, providing a strong guarantee for the continuity and stability of the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the octafluorocyclobutane cylinder detection system described in the utility model;

[0017] In the figure: 1. Octafluorocyclobutane cylinder; 2. Filling control valve; 3. Filling pump; 4. Detection sample tank; 5. Sample tank control valve; 6. Sampling control valve; 7. Vacuum control valve; 8. Control system; 9. Finished product storage tank; 10. Vacuum pump; 11. Online gas chromatograph; 12. Residual gas recovery pipeline. DETAILED DESCRIPTION

[0018] In order to make the purpose and technical solution of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings.

[0019] Example 1

[0020] like Figure 1 As shown, the octafluorocyclobutane cylinder detection system comprises an octafluorocyclobutane cylinder 1, the outlet of the octafluorocyclobutane cylinder 1 is connected to a filling pipeline, and a filling control valve 2 is arranged on the filling pipeline; the outlet of the octafluorocyclobutane cylinder 1 is connected to a detection sample tank 4 through a pipeline, and a sample tank control valve 5 is arranged at the inlet of the detection sample tank 4, and the outlet of the detection sample tank 4 is respectively connected to a sampling detection pipeline and a vacuum replacement pipeline, and a sampling control valve 6 and a vacuum control valve 7 are respectively arranged on the sampling detection pipeline and the vacuum replacement pipeline; and a control system 8 is also included.

[0021] The inlet of the filling pipeline is connected to a filling pump 3 , and the other end of the filling pump 3 is connected to a finished product storage tank 9 .

[0022] The outlet of the vacuum replacement pipeline is connected to the vacuum pump 10 .

[0023] The outlet of the sampling and testing pipeline is connected to an online gas chromatograph 11 , and the outlet of the online gas chromatograph 11 is connected to a residual gas recovery pipeline 12 .

[0024] The control system 8 is electrically connected to the filling control valve 2, the filling pump 3, the sample tank control valve 5, the sampling control valve 6, the vacuum control valve 7, the vacuum pump 10 and the online gas chromatograph 11 respectively.

[0025] The number of the detection sample retaining tanks 4 is three groups.

[0026] The number of the octafluorocyclobutane steel cylinders 1 is two groups.

[0027] When working, the specific steps are as follows:

[0028] 1) First, connect the octafluorocyclobutane cylinder 1 to the filling system, start the vacuum pump 10 through the control system 8 and open the vacuum control valve 7 to evacuate the detection sample tank 4. When the vacuum pump inlet pressure is -0.1MPa, slowly open the sample tank control valve 5 to evacuate and replace the octafluorocyclobutane cylinder 1 to ensure the purity of the internal environment, and at the same time recover the remaining gas to the production system;

[0029] 2) After the replacement is completed, the control system 8 closes the vacuum control valve 7 and opens the filling control valve 2, fills 1 kg of octafluorocyclobutane into the octafluorocyclobutane cylinder 1, closes the filling control valve 2, opens the sampling control valve 6, starts the online gas chromatograph 11, and detects the gas component content in the detection sample tank 4 and the octafluorocyclobutane cylinder 1. If the detection is qualified, close the sampling control valve 6, open the vacuum control valve 7, evacuate the gas in the detection sample tank 4 and the octafluorocyclobutane cylinder 1, and then open the filling control valve 2, and fill the material in the finished product storage tank 9 into the octafluorocyclobutane cylinder 1 through the filling pump 3;

[0030] 3) After filling is completed, the control system 8 will close the filling control valve 2, open the sample tank control valve 5, and pass the gas in the octafluorocyclobutane cylinder 1 into the detection sample tank 4, and let it stand for 30 minutes to allow it to be fully mixed. After standing, close the sample tank control valve 5, and the octafluorocyclobutane cylinder 1 can be safely removed;

[0031] 4) Then, the control system 8 starts the online gas chromatograph 11 again to detect the gas in the sample tank 4 to ensure product quality. In the whole process, the control system 8 accurately controls each component without manual intervention, thereby achieving efficient and accurate automatic detection.

Claims

1. An octafluorocyclobutane cylinder detection system, characterized in that: The invention comprises an octafluorocyclobutane steel cylinder (1), the outlet of the octafluorocyclobutane steel cylinder (1) is connected to a filling pipeline, and a filling control valve (2) is arranged on the filling pipeline; the outlet of the octafluorocyclobutane steel cylinder (1) is connected to a detection sample tank (4) through a pipeline, the inlet of the detection sample tank (4) is provided with a sample tank control valve (5), the outlet of the detection sample tank (4) is respectively connected to a sampling detection pipeline and a vacuum replacement pipeline, and the sampling detection pipeline and the vacuum replacement pipeline are respectively provided with a sampling control valve (6) and a vacuum control valve (7); and also comprises a control system (8); the inlet of the filling pipeline is connected to a filling pump (3), and the other end of the filling pump (3) is connected to a finished product storage tank (9); the outlet of the vacuum replacement pipeline is connected to a vacuum pump (10); the outlet of the sampling detection pipeline is connected to an online gas chromatograph (11), and the outlet of the online gas chromatograph (11) is connected to a residual gas recovery pipeline (12).

2. The octafluorocyclobutane cylinder detection system according to claim 1, characterized in that: The control system (8) is electrically connected to the filling control valve (2), the filling pump (3), the sample tank control valve (5), the sampling control valve (6), the vacuum control valve (7), the vacuum pump (10) and the online gas chromatograph (11) respectively.

3. The octafluorocyclobutane cylinder detection system according to claim 2, characterized in that: The number of the detection sample retaining tanks (4) is more than three groups.

4. The octafluorocyclobutane cylinder detection system according to claim 3, characterized in that: The number of the octafluorocyclobutane steel cylinders (1) is more than one group.

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