Standby vacuumizing system for helium filling device

Abstract

The utility model relates to the field of filling of pressure containers, in particular to a standby vacuumizing system for helium filling, which comprises a gas storage tank, a filling pipeline connected with the gas storage tank and a branch pipeline connected with the filling pipeline, a plurality of filling stations for mounting gas cylinders are arranged on the branch pipeline, and the filling stations are communicated with the gas storage tank. The filling pipeline is connected with a recycling pipeline, the recycling tank is used for storing recycled gas and connected with the recycling pipeline, a vacuum pump is mounted on the recycling pipeline, the branch pipelines are mounted on the confluence pipeline, and the confluence pipeline is connected with the filling pipeline. According to the standby vacuumizing system for the helium filling device, residual helium in the gas cylinder can be recycled and reused, energy consumption and environmental pollution are reduced, and through efficient filling and recycling, the standby vacuumizing system for the helium filling device has the advantages and effects of being high in safety, high in flexibility, capable of saving energy, environmentally friendly, easy to maintain and the like.

Description

Technical Field

[0001] The utility model relates to the field of pressure vessel filling, in particular to a vacuum pumping system for helium filling equipment. Background Art

[0002] With the rapid development of the gas industry in recent years, helium filling equipment has gradually become one of the key equipment in the field of gas filling. As a rare gas, helium has the characteristics of stable chemical properties, low density, and good thermal conductivity. It is widely used in aerospace, semiconductor manufacturing, medical research and other fields.

[0003] Before filling helium, in order to ensure the purity of helium in the cylinder, it is necessary to first connect the cylinder to the vacuum pipe, then evacuate the cylinder, and then reconnect the cylinder to the filling pipe to fill the cylinder with helium. Traditional helium filling equipment is mostly manual or semi-automatic, which has problems such as cumbersome operation, low precision, and low efficiency. In addition, the remaining helium in the cylinder cannot be recovered, which needs to be improved. Utility Model Content

[0004] The utility model aims to solve the above problems and provide a vacuum pumping system for helium filling equipment which has a high degree of automation and can effectively recover the residual helium in the gas cylinder.

[0005] In order to achieve the above-mentioned purpose, the utility model discloses a vacuum pumping system for helium filling equipment, including a gas storage tank and a filling pipeline connected to the gas storage tank, and its structural characteristics are: it also includes a branch pipeline connected to the filling pipeline, and a plurality of filling stations for installing gas cylinders are arranged on the branch pipeline, and a recovery pipeline is connected to the filling pipeline, and also includes a recovery tank for storing recovered gas, the recovery tank is connected to the recovery pipeline, and a vacuum pump is installed on the recovery pipeline.

[0006] After adopting the above structure, the vacuum system for helium filling equipment has brought significant economic and social benefits to the gas cylinder filling industry through the advantages of efficient filling and recycling, high safety, strong flexibility, energy saving and environmental protection, and easy maintenance.

[0007] It also includes a converging pipeline, and multiple branch pipelines are provided. Multiple branch pipelines are installed on the converging pipeline, and the converging pipeline is connected to the filling pipeline. The design of the converging pipeline enables multiple branch pipelines to be connected to the filling pipeline at the same time, simplifies the pipeline structure, enhances the stability and reliability of the system, and also facilitates the installation and maintenance of the pipeline.

[0008] A branch control valve is installed on the branch pipeline to control the on-off of the pipeline. The branch control valve can accurately control the on-off of each branch pipeline, facilitate the management and control of the filling process, improve the flexibility and safety of filling, and reduce the risk during the filling process.

[0009] A booster pump is installed on the filling pipeline to increase the pressure of the gas cylinder. The booster pump can provide sufficient pressure to the gas cylinder to ensure that the filling process can proceed smoothly, improve the filling speed and efficiency, and also ensure the filling quality.

[0010] The filling pipeline is equipped with a first control valve for controlling the on-off of the pipeline. The first control valve can control the on-off of the filling pipeline, facilitates the management and control of the filling process, improves the flexibility and safety of the filling, and avoids unexpected situations during the filling process.

[0011] The recovery pipeline is equipped with a second control valve for controlling the on-off of the pipeline. The second control valve can control the on-off of the recovery pipeline, facilitate the management and control of the recovery process, improve the flexibility and safety of the recovery, and ensure that the recovery process can proceed smoothly.

[0012] The filling pipeline is equipped with a second one-way valve that controls the one-way flow of the airflow toward the branch pipeline. The second one-way valve can ensure that the airflow can only flow toward the branch pipeline, prevent gas backflow, improve the safety of the filling process, and avoid safety problems caused by gas backflow.

[0013] The recovery pipeline is equipped with a first one-way valve that controls the one-way flow of air toward the recovery tank. The first one-way valve can ensure that the airflow can only flow toward the recovery tank, prevent the exhaust gas from leaking out, improve the safety of the recovery process, and also ensure the effective recovery of the exhaust gas.

[0014] In summary, the beneficial effects of the utility model are as follows: the system realizes the simultaneous filling of multiple gas cylinders through the filling pipeline and the filling stations on the multiple branch pipelines, thereby greatly improving the filling efficiency. At the same time, the setting of the recovery pipeline and the recovery tank enables the waste gas or unused gas generated during the filling process to be effectively recovered, thereby avoiding the waste of resources. The setting of multiple branch pipelines and filling stations enables the system to adapt to the filling needs of gas cylinders of different quantities and specifications. At the same time, by adjusting the switching state of the branch control valve, the gas cylinder to be filled can be flexibly selected, thereby improving the flexibility of the system. The setting of the recovery tank and the recovery pipeline enables the waste gas or unused gas generated during the filling process to be recovered and reused, thereby reducing energy consumption and environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 This is the flow chart of this system.

[0017] In the figure: gas storage tank 1, recovery tank 2, vacuum pump 3, booster pump 4, first control valve 5, second control valve 6, branch control valve 7, first check valve 8, second check valve 9, branch pipeline 10, gas cylinder 11, filling pipeline 12, recovery pipeline 13, confluence pipeline 14. DETAILED DESCRIPTION

[0018] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0019] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0020] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0021] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0022] The following is a description of preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0023] A vacuum pumping system for helium filling equipment includes a gas storage tank 1 and a filling pipeline 12 connected to the gas storage tank 1. The structural features are: it also includes a branch pipeline 10 connected to the filling pipeline 12, and a plurality of filling stations for installing gas cylinders 11 are arranged on the branch pipeline 10. A recovery pipeline 13 is connected to the filling pipeline 12, and it also includes a recovery tank 2 for storing recovered gas, and the recovery tank 2 is connected to the recovery pipeline 13. A vacuum pump 3 is installed on the recovery pipeline 13. Figure 1After adopting the above structure, the vacuum system for helium filling equipment has the advantages of efficient filling and recycling, high safety, strong flexibility, energy saving and environmental protection, and easy maintenance, which brings significant economic and social benefits to the gas cylinder 11 filling industry.

[0024] See attached Figure 1 , and also includes a converging pipeline 14, a plurality of branch pipelines 10 are provided, and a plurality of branch pipelines 10 are installed on the converging pipeline 14, and the converging pipeline 14 is connected to the filling pipeline 12. The design of the converging pipeline 14 enables a plurality of branch pipelines 10 to be connected to the filling pipeline 12 at the same time, simplifies the pipeline structure, enhances the stability and reliability of the system, and also facilitates the installation and maintenance of the pipeline. A branch control valve 7 for controlling the on-off of the pipeline is installed on the branch pipeline 10. The branch control valve 7 can accurately control the on-off of each branch pipeline 10, facilitates the management and control of the filling process, improves the flexibility and safety of the filling, and reduces the risk during the filling process.

[0025] See attached Figure 1 A booster pump 4 for boosting the gas cylinder 11 is installed on the filling pipeline 12. The booster pump 4 can provide sufficient pressure to the gas cylinder 11 to ensure that the filling process can proceed smoothly, improve the filling speed and efficiency, and also ensure the filling quality. A first control valve 5 for controlling the on-off of the pipeline is installed on the filling pipeline 12. The first control valve 5 can control the on-off of the filling pipeline 12, facilitate the management and control of the filling process, improve the flexibility and safety of the filling, and avoid unexpected situations during the filling process.

[0026] See attached Figure 1 , Attachment Figure 2 , a second control valve 6 for controlling the on-off of the pipeline is installed on the recovery pipeline 13. The second control valve 6 can control the on-off of the recovery pipeline 13, which facilitates the management and control of the recovery process, improves the flexibility and safety of the recovery, and ensures that the recovery process can proceed smoothly. A second one-way valve 9 for controlling the one-way flow of the airflow toward the branch pipeline 10 is installed on the filling pipeline 12. The second one-way valve 9 can ensure that the airflow can only flow in the direction of the branch pipeline 10, prevent gas backflow, improve the safety of the filling process, and avoid safety problems caused by gas backflow. A first one-way valve 8 for controlling the one-way flow of the airflow toward the recovery tank 2 is installed on the recovery pipeline 13. The first one-way valve 8 can ensure that the airflow can only flow in the direction of the recovery tank 2, prevent the leakage of exhaust gas, improve the safety of the recovery process, and also ensure the effective recovery of exhaust gas.

[0027] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A vacuum pumping system for helium filling equipment, comprising a gas storage tank (1), and a filling pipeline (12) connected to the gas storage tank (1), characterized in that: It also includes a branch pipeline (10) connected to the filling pipeline (12), a plurality of filling stations for installing gas cylinders (11) are provided on the branch pipeline (10), a recovery pipeline (13) is connected to the filling pipeline (12), and also includes a recovery tank (2) for storing recovered gas, the recovery tank (2) is connected to the recovery pipeline (13), and a vacuum pump (3) is installed on the recovery pipeline (13); It also includes a converging pipeline (14), a plurality of branch pipelines (10) are provided, the plurality of branch pipelines (10) are all installed on the converging pipeline (14), and the converging pipeline (14) is connected to the filling pipeline (12); A branch line control valve (7) for controlling the on-off state of the branch line (10) is installed on the branch line (10); A booster pump (4) for boosting the pressure in the gas cylinder (11) is installed on the filling pipeline (12).

2. The vacuum pumping system for helium filling equipment according to claim 1, characterized in that: The filling pipeline (12) is provided with a first control valve (5) for controlling the on-off of the pipeline.

3. The vacuum pumping system for helium filling equipment according to claim 1, characterized in that: The recovery pipeline (13) is provided with a second control valve (6) for controlling the on-off of the pipeline.

4. The vacuum pumping system for helium filling equipment according to claim 1, characterized in that: The filling pipeline (12) is provided with a second one-way valve (9) for controlling the one-way flow of air towards the branch pipeline (10).

5. The vacuum pumping system for helium filling equipment according to claim 1, characterized in that: The recovery pipeline (13) is provided with a first one-way valve (8) for controlling the one-way flow of air towards the recovery tank (2).

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