Octafluorocyclobutane steel cylinder drying, replacing and filling integrated system

Abstract

The utility model belongs to the technical field of gas cylinder filling, and particularly relates to an octafluorocyclobutane steel cylinder drying, replacing and filling integrated system. Comprising an octafluorocyclobutane steel cylinder, and a steel cylinder control valve is arranged on an outlet pipeline of the octafluorocyclobutane steel cylinder; the other end of the steel cylinder control valve is respectively connected with a filling pipeline, a sampling detection pipeline and a vacuum replacement pipeline; the filling pipeline, the sampling detection pipeline and the vacuum replacement pipeline are respectively provided with a filling control valve, a sampling control valve and a vacuumizing control valve; a double-clip type heating module is arranged outside a cylinder body of the octafluorocyclobutane steel cylinder, and an electronic scale is arranged at the bottom of the octafluorocyclobutane steel cylinder; a control system is further included. Seamless connection from gas cylinder drying, replacing to filling is achieved through whole-process automatic operation, the labor intensity of workers is reduced, production benefits are improved, the number of times of disassembly is reduced, the risk of cylinder valve damage is reduced, and the service life of the gas cylinder is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas cylinder filling, and in particular relates to an integrated system for drying, replacing and filling octafluorocyclobutane cylinders. Background Art

[0002] In the existing chemical production process, the drying, replacement and filling processes of octafluorocyclobutane cylinders are usually carried out separately, which not only increases the complexity of the operation, but also significantly affects the production efficiency. Specifically, the current operation process usually includes the following steps: First, the octafluorocyclobutane cylinder to be treated is placed in an oven for negative pressure evacuation and drying. During this process, hot nitrogen is often required for replacement and drying; after drying, the moisture in the cylinder needs to be tested to ensure that it meets the quality standards. After passing the test, the cylinder needs to be taken out of the oven and transported to the filling room and connected to the filling / evacuation pipeline. In the filling room, qualified octafluorocyclobutane is used for replacement again to ensure that the gas composition inside the cylinder meets the filling requirements. Finally, the filling operation is carried out.

[0003] However, this traditional operation process has multiple problems. First, the gas cylinder needs to be transferred between the oven and the filling room, and disassembled and connected at least twice during the process, which not only increases the complexity and risk of the operation, but also reduces the overall production efficiency. Secondly, the three processes of drying, replacement and filling all require manual on-site operation, which not only increases the workload and labor intensity of the staff, but also increases the possibility of human error, further reducing production efficiency and product quality. In addition, since drying and replacement and filling are separate operations, the equipment use time and energy consumption are increased, and the production cost is increased. Therefore, how to design a system that can realize the integrated operation of drying, replacement and filling of octafluorocyclobutane cylinders to reduce the number of gas cylinder transfers and manual operations, improve production efficiency and product quality, and reduce production costs has become a problem that needs to be solved urgently in the current chemical production field. Utility Model Content

[0004] In view of the above deficiencies in the prior art, the purpose of the utility model is to provide an integrated system for drying, replacing and filling octafluorocyclobutane cylinders, which realizes seamless connection from cylinder drying, replacement to filling through fully automated operation, thereby reducing the labor intensity and labor costs of staff and improving production efficiency. In addition, due to its integrated design of drying, replacement and filling, the cylinder only needs one connection from drying to filling, thereby reducing the number of disassembly times, reducing the risk of cylinder valve damage and extending the life of the cylinder.

[0005] The utility model is realized by adopting the following technical solutions:

[0006] The integrated system for drying, replacing and filling octafluorocyclobutane cylinders comprises an octafluorocyclobutane cylinder, wherein the outlet pipeline of the octafluorocyclobutane cylinder is provided with a cylinder control valve; the other end of the cylinder control valve is respectively connected to a filling pipeline, a sampling and detection pipeline and a vacuum replacement pipeline, wherein the filling pipeline, the sampling and detection pipeline and the vacuum replacement pipeline are respectively provided with a filling control valve, a sampling control valve and a vacuum control valve; a clamp-type heating module is provided on the outside of the body of the octafluorocyclobutane cylinder, and an electronic scale is provided on the bottom of the octafluorocyclobutane cylinder; and a control system is also included.

[0007] The inlet of the filling pipeline is connected to the filling pump, a check valve is arranged on the filling pipeline, and the inlet of the filling pump is connected to the finished product storage tank.

[0008] The outlet of the filling pump is also connected to the finished product storage tank through a reflux pipeline, a reflux control valve is arranged on the reflux pipeline, and a pressure gauge is arranged at the outlet of the filling pump.

[0009] The outlet of the vacuum replacement pipeline is connected to a vacuum pump.

[0010] The outlet of the sampling and testing pipeline is connected to an online gas chromatograph, and the outlet of the online gas chromatograph is connected to a residual gas recovery pipeline.

[0011] Also includes sound and light alarm device.

[0012] The control system is electrically connected to the cylinder control valve, the filling control valve, the sampling control valve, the vacuum control valve, the clamp-type heating module, the electronic scale, the filling pump, the vacuum pump, the online gas chromatograph, the sound and light alarm device, the reflux control valve and the pressure gauge.

[0013] The number of the octafluorocyclobutane cylinders is more than one group.

[0014] The working principle of the device is as follows:

[0015] After all pipelines are connected, the control system controls the clamp-type heating module to clamp the outside of the gas cylinder, and automatically dry it according to the set program. At the same time, the octafluorocyclobutane cylinder is replaced through the vacuum replacement pipeline, and the replacement gas is octafluorocyclobutane material; the drying process is replaced at the same time, so that the moisture and components are qualified at the same time after the drying is completed. After the drying is completed, a certain amount of octafluorocyclobutane is filled into the octafluorocyclobutane cylinder, and the moisture and components are tested through the sampling and detection pipeline. After the test is qualified, it is filled through the filling pipeline. The filling pressure is monitored by the filling pump outlet pressure gauge. When the pressure is too high, the reflux control valve is opened to avoid stopping the filling pump; the filling amount of the octafluorocyclobutane cylinder is monitored by an electronic scale. After the filling is completed, the filling pump stops automatically, and the sound and light alarm device starts automatically to prompt the operator. Finally, it is tested by an online gas chromatograph. After the test is qualified, the residual gas is recovered to the production system through the residual gas recovery pipeline. The whole process is controlled by the control system and no manual operation is required.

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

[0017] (1) The integrated system for drying, replacing and filling octafluorocyclobutane cylinders described in the utility model realizes the full automation of the process from cylinder drying, replacement to filling. This not only greatly reduces the labor intensity of the staff, but also significantly reduces the labor cost and improves the overall production efficiency;

[0018] (2) The integrated system for drying, replacing and filling octafluorocyclobutane cylinders described in the utility model is that since drying, replacement and filling are all performed at the same workstation, the cylinder only needs to be connected once from drying to filling, thus avoiding damage to the cylinder valve caused by frequent disassembly of the cylinder, reducing the number of times the cylinder is disassembled, reducing the risk of damage and extending the service life of the cylinder;

[0019] (3) The integrated system for drying, replacing and filling octafluorocyclobutane cylinders described in the utility model changes the traditional drying + replacing cylinder disposal mode, and performs the drying and replacement processes simultaneously, which greatly saves time and significantly improves work efficiency. This design makes the entire production process more compact and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the integrated system for drying, replacing and filling octafluorocyclobutane cylinders described in the utility model;

[0021] In the figure: 1. Octafluorocyclobutane cylinder; 2. Cylinder control valve; 3. Filling control valve; 4. Sampling control valve; 5. Vacuum control valve; 6. Wafer-type heating module; 7. Electronic scale; 8. Control system; 9. Filling pump; 10. Vacuum pump; 11. Online gas chromatograph; 12. Residual gas recovery pipeline; 13. Sound and light alarm device; 14. Check valve; 15. Finished product storage tank; 16. Reflux control valve; 17. Pressure gauge. DETAILED DESCRIPTION

[0022] 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.

[0023] Example 1

[0024] like Figure 1 As shown, the integrated system for drying, replacing and filling octafluorocyclobutane cylinders comprises an octafluorocyclobutane cylinder 1, on the outlet pipeline of which a cylinder control valve 2 is provided; the other end of the cylinder control valve 2 is respectively connected to a filling pipeline, a sampling and detection pipeline and a vacuum replacement pipeline, and the filling pipeline, the sampling and detection pipeline and the vacuum replacement pipeline are respectively provided with a filling control valve 3, a sampling control valve 4 and a vacuum control valve 5; a clamp-type heating module 6 is provided on the outside of the body of the octafluorocyclobutane cylinder 1, and an electronic scale 7 is provided at the bottom of the octafluorocyclobutane cylinder 1; and a control system 8 is also included.

[0025] The inlet of the filling pipeline is connected to the filling pump 9 , a check valve 14 is provided on the filling pipeline, and the inlet of the filling pump 9 is connected to the finished product storage tank 15 .

[0026] The outlet of the filling pump 9 is also connected to the finished product storage tank 15 through a reflux pipeline, a reflux control valve 16 is provided on the reflux pipeline, and a pressure gauge 17 is provided at the outlet of the filling pump 9.

[0027] The outlet of the vacuum replacement pipeline is connected to the vacuum pump 10 .

[0028] 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 .

[0029] Also included is an audible and visual alarm device 13 .

[0030] The control system 8 is electrically connected to the cylinder control valve 2, the filling control valve 3, the sampling control valve 4, the vacuum control valve 5, the clamp-type heating module 6, the electronic scale 7, the filling pump 9, the vacuum pump 10, the online gas chromatograph 11, the sound and light alarm device 13, the reflux control valve 16 and the pressure gauge.

[0031] The number of the octafluorocyclobutane steel cylinders 1 is three groups.

[0032] When working, the specific steps are as follows:

[0033] 1) First, after the octafluorocyclobutane steel cylinder 1 is connected, the control system 8 controls the clamp-type heating module 6 to automatically clamp the outer side of the gas cylinder, while ensuring that a certain gap is maintained between the octafluorocyclobutane steel cylinder 1 and the clamp-type heating module 6, and the octafluorocyclobutane steel cylinder 1 is automatically dried according to the set program, and the vacuum pump 10 and the vacuum control valve 5 are turned on at the same time, and the octafluorocyclobutane steel cylinder 1 is evacuated and replaced through the vacuum replacement pipeline, and the replacement gas used in this replacement process is a qualified octafluorocyclobutane material;

[0034] 2) After the drying and replacement is completed, a certain amount of octafluorocyclobutane material is filled into the octafluorocyclobutane cylinder 1 through the filling pipeline, and then the sample in the octafluorocyclobutane cylinder 1 is transported to the online gas chromatograph 11 through the sampling and testing pipeline for moisture and component detection. After the test is qualified, the filling control valve 3 is automatically opened, the filling pump 9 is started, and octafluorocyclobutane is filled into the octafluorocyclobutane cylinder 1 through the filling pipeline;

[0035] 3) During the filling process, the control system 8 monitors the filling pressure in real time through the pressure gauge at the outlet of the filling pump 9. When the pressure is too high, the reflux control valve 16 is automatically opened to return the excess octafluorocyclobutane material to the finished product storage tank 15 through the reflux pipeline to avoid stopping the filling pump 9. At the same time, the electronic scale 7 monitors the filling volume of the gas cylinder in real time. Once the set weight is reached, the filling pump 9 automatically stops working;

[0036] 4) After filling is completed, the sound and light alarm device 13 is automatically started on site and in the DCS control system 8, prompting the operator that the filling is completed. The online gas chromatograph 11 is used for detection, and the residual gas is recovered to the production system through the residual gas recovery pipeline 12 after the test is qualified. The whole process is controlled by the control system 8 to ensure that all operations are automatically performed according to the preset program without manual operation. In addition, the control system 8 also supports remote control of the site and DCS, and has data recording and transmission functions, which is convenient for operators to monitor and manage in real time.

Claims

1. An integrated system for drying, replacing and filling octafluorocyclobutane cylinders, characterized in that: The invention comprises an octafluorocyclobutane steel cylinder (1), wherein a steel cylinder control valve (2) is arranged on the outlet pipeline of the octafluorocyclobutane steel cylinder (1); the other end of the steel cylinder control valve (2) is respectively connected to a filling pipeline, a sampling detection pipeline and a vacuum replacement pipeline, wherein a filling control valve (3), a sampling control valve (4) and a vacuum control valve (5) are respectively arranged on the filling pipeline, the sampling detection pipeline and the vacuum replacement pipeline; a clamp-type heating module (6) is arranged outside the bottle body of the octafluorocyclobutane steel cylinder (1), and an electronic scale (7) is arranged at the bottom of the octafluorocyclobutane steel cylinder (1); and a control system (8) is also included.

2. The integrated system for drying, replacing and filling octafluorocyclobutane cylinders according to claim 1 is characterized in that: The inlet of the filling pipeline is connected to the filling pump (9), a check valve (14) is provided on the filling pipeline, and the inlet of the filling pump (9) is connected to the finished product storage tank (15).

3. The integrated system for drying, replacing and filling octafluorocyclobutane cylinders according to claim 2 is characterized in that: The outlet of the filling pump (9) is also connected to the finished product storage tank (15) through a reflux pipeline, a reflux control valve (16) is provided on the reflux pipeline, and a pressure gauge (17) is provided at the outlet of the filling pump (9).

4. The integrated system for drying, replacing and filling octafluorocyclobutane cylinders according to claim 3 is characterized in that: The outlet of the vacuum replacement pipeline is connected to a vacuum pump (10).

5. The integrated system for drying, replacing and filling octafluorocyclobutane cylinders according to claim 4 is characterized in that: 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).

6. The integrated system for drying, replacing and filling octafluorocyclobutane cylinders according to claim 5 is characterized in that: It also includes an audible and visual alarm device (13).

7. The integrated system for drying, replacing and filling octafluorocyclobutane cylinders according to claim 6 is characterized in that: The control system (8) is electrically connected to the cylinder control valve (2), the filling control valve (3), the sampling control valve (4), the vacuum control valve (5), the sandwich-type heating module (6), the electronic scale (7), the filling pump (9), the vacuum pump (10), the online gas chromatograph (11), the sound and light alarm device (13), the reflux control valve (16) and the pressure gauge (17).

8. The integrated system for drying, replacing and filling octafluorocyclobutane cylinders according to claim 7 is characterized in that: The number of the octafluorocyclobutane steel cylinders (1) is more than one group.

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