Helium automatic pressure division method filling system

Abstract

Helium automatic pressure method filling system, including the following steps: S1: pneumatic execution automatic valve and cylinder communication, automatically open pneumatic execution automatic valve for vacuum operation and detect vacuum; S2: when the specified time cannot be extracted to the preset vacuum degree, close all pneumatic execution automatic valve, according to the order individually open pneumatic execution automatic valve for individual vacuum pumping treatment; S3: after the vacuum pumping step is completed, the residual pressure in each bottle of helium to be filled with air bottle is automatically detected, and the filling order is automatically arranged; S4: according to the filling order arranged in step S3, the pneumatic execution automatic valve is automatically controlled to open and close to fill in helium and detect the filling pressure; S5: by analogy, until all the cylinders are filled; It ensures the product qualification rate, saves manpower and shortens the operation time. Since the system automatically controls the pipeline vacuum degree and detects the leakage point, pipeline purging is saved, helium is saved, cost is saved, environment is protected, and production efficiency is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of gas cylinder filling technology, and more specifically to an automatic helium partial pressure filling system. Background Technology

[0002] Currently, helium filling technology relies entirely on manual intervention. Before filling empty helium cylinders, operators must first check the residual pressure of each cylinder, marking them according to their pressure differences, and then connect clamps and pipes. Connecting the pipes requires purging, which wastes helium resources and is environmentally unfriendly. Next, the pipe system is evacuated. If a leak is found, each cylinder must be checked individually, which is time-consuming. After fixing the leak, the cylinders are filled sequentially from highest to lowest residual pressure. This requires constant monitoring of the filling pressure, resulting in low efficiency, high labor intensity, and slow filling speed, hindering production efficiency. Summary of the Invention

[0003] To address the aforementioned problems and overcome the shortcomings of existing technologies, this invention provides an automated helium partial pressure filling system, comprising the following steps:

[0004] S1: The pneumatically operated automatic valve is connected to the gas cylinder, automatically opening the pneumatically operated automatic valve to perform a vacuuming operation and detect the vacuum level;

[0005] S2: If the preset vacuum level cannot be achieved within the specified time, close all pneumatic automatic valves and open them one by one in sequence to perform individual vacuuming.

[0006] S3: After the vacuuming step is completed, the residual pressure in each empty helium bottle to be filled is automatically detected, and the filling sequence is automatically arranged.

[0007] S4: Following the filling sequence arranged in step S3, automatically control the pneumatic actuator to open and close the automatic valve to fill helium and detect the filling pressure;

[0008] S5: Continue in this manner until all gas cylinders are filled.

[0009] Furthermore, in step S2, the first to Nth gas cylinders are evacuated individually. If the preset vacuum level cannot be achieved within a specified time, the gas cylinder is marked as a leaking gas cylinder, and the system alarms to prompt the replacement of the corresponding gas cylinder.

[0010] Furthermore, after replacing the corresponding gas cylinder, the system removes the leaking gas cylinder mark and performs a separate vacuuming operation on the replaced gas cylinder. If the preset vacuum level cannot be reached within the specified time, the gas cylinder is marked as a leaking gas cylinder, and the system alarms to prompt the replacement of the corresponding gas cylinder.

[0011] If the preset vacuum level is reached within the specified time, the cylinder is marked as normal.

[0012] Repeat the above steps until all gas cylinders in the system are marked as normal gas cylinders, at which point the vacuuming process is complete.

[0013] Furthermore, the arrangement method involves reading the pressure of each gas cylinder and arranging them in order from high pressure to low pressure, and marking the gas cylinders as Arrangement 1 to Arrangement N. The pneumatic automatic valves corresponding to the arranged gas cylinders are also arranged and marked as Arrangement 1 to Arrangement N.

[0014] Furthermore, in step S4, following the filling sequence arranged in step S3, valve 1 is opened to fill gas cylinder 1. When the filling pressure reaches the process set value, valve 1 is automatically closed.

[0015] Then the valve of Arrangement 2 is automatically opened to fill the Arrangement 2 gas cylinder. When the filling pressure reaches the process setting value, the valve of Arrangement 2 is automatically closed.

[0016] Repeat the above steps until all N gas cylinders are filled.

[0017] Furthermore, in step S4, according to the filling sequence arranged in step S3, valve 1 is opened to fill gas cylinder 1 with cushion gas. When the filling pressure reaches the process set value P, valve 1 is automatically closed.

[0018] Then the valve of Arrangement 2 is automatically opened to fill the Arrangement 2 gas cylinder with cushion gas. When the filling pressure reaches the process set value P, the valve of Arrangement 2 is automatically closed.

[0019] Repeat the above steps until the filling pressure of the N gas cylinders reaches the process setting value P.

[0020] Furthermore, when all gas cylinders are filled to the same gas pressure, i.e., the process setting value P, all valves are opened simultaneously to fill to the preset pressure.

[0021] A filling device includes a filling pipeline, which includes several branch pipelines. Each branch pipeline is equipped with a pneumatically operated automatic valve connected to a gas cylinder, and a pressure transmitter is installed on the pneumatically operated automatic valve.

[0022] Furthermore, vacuum gauges are installed on the branch pipes.

[0023] Furthermore, it also includes a PLC programmable logic controller, which is electrically connected to pneumatically actuated automatic valves, pressure transmitters, and vacuum gauges.

[0024] The beneficial effects of this invention are:

[0025] The automatic helium pressure-partitioning filling system provided by this invention operates automatically after startup, which not only ensures the product qualification rate, but also saves manpower and shortens the operation time. Since the system automatically controls the pipeline vacuum and detects leaks, pipeline purging is eliminated, saving helium, reducing costs, protecting the environment, and effectively improving production efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the process flow of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of the present invention; Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the following description will be provided in conjunction with the appendix of this invention. Figure 1 ~Appendix Figure 2 The present invention will be described in more detail below.

[0029] The automatic helium partial pressure filling system provided by this invention includes the following steps:

[0030] S1: The pneumatically operated automatic valve is connected to the gas cylinder, automatically opening the pneumatically operated automatic valve to perform a vacuuming operation and detect the vacuum level;

[0031] S2: If the preset vacuum level cannot be achieved within the specified time, close all pneumatic automatic valves and open them one by one in sequence to perform individual vacuuming.

[0032] S3: After the vacuuming step is completed, the residual pressure in each empty helium bottle to be filled is automatically detected, and the filling sequence is automatically arranged.

[0033] S4: Following the filling sequence arranged in step S3, automatically control the pneumatic actuator to open and close the automatic valve to fill helium and detect the filling pressure;

[0034] S5: Continue in this manner until all gas cylinders are filled.

[0035] In step S2, the first to Nth gas cylinders are evacuated individually. If the preset vacuum level cannot be achieved within a specified time, the gas cylinder is marked as a leaking gas cylinder, and the system alarms to prompt the replacement of the corresponding gas cylinder.

[0036] After replacing the corresponding gas cylinder, the system removes the leaking gas cylinder mark and performs a separate vacuuming operation on the replaced gas cylinder. If the preset vacuum level cannot be reached within the specified time, the gas cylinder is marked as a leaking gas cylinder, and the system alarms to prompt the replacement of the corresponding gas cylinder.

[0037] If the preset vacuum level is reached within the specified time, the cylinder is marked as normal.

[0038] Repeat the above steps until all gas cylinders in the system are marked as normal gas cylinders, at which point the vacuuming process is complete.

[0039] The arrangement method is to read the pressure of each gas cylinder and arrange them in order from high pressure to low pressure, and mark the gas cylinders as Arrangement 1 to Arrangement N. The pneumatic automatic valves corresponding to the arranged gas cylinders are arranged and marked as Arrangement 1 to Arrangement N.

[0040] In step S4, following the filling sequence arranged in step S3, valve 1 is opened to fill gas cylinder 1. When the filling pressure reaches the process set value, valve 1 is automatically closed.

[0041] Then the valve of Arrangement 2 is automatically opened to fill the Arrangement 2 gas cylinder. When the filling pressure reaches the process setting value, the valve of Arrangement 2 is automatically closed.

[0042] Repeat the above steps until all N gas cylinders are filled.

[0043] In step S4, following the filling sequence arranged in step S3, valve 1 is opened to fill gas cylinder 1 with cushion gas. When the filling pressure reaches the process set value P, valve 1 is automatically closed.

[0044] Then the valve of Arrangement 2 is automatically opened to fill the Arrangement 2 gas cylinder with cushion gas. When the filling pressure reaches the process set value P, the valve of Arrangement 2 is automatically closed.

[0045] Repeat the above steps until the filling pressure of the N gas cylinders reaches the process setting value P.

[0046] When all gas cylinders are filled to the same gas pressure, i.e., the process setting value P, all valves are opened simultaneously to fill to the preset pressure.

[0047] A filling device includes a filling pipeline, which includes several branch pipelines, each of which is equipped with a pneumatically actuated automatic valve connected to a gas cylinder, and a pressure transmitter is installed on the pneumatically actuated automatic valve; a vacuum gauge is installed on each branch pipeline; and a PLC programmable logic controller is also included, which is electrically connected to the pneumatically actuated automatic valve, the pressure transmitter, and the vacuum gauge.

[0048] Embodiment 1 of the present invention is as follows:

[0049] An automated helium partial pressure filling system includes the following steps:

[0050] First, turn on the equipment power, select the vacuuming program, connect the pneumatic automatic valve to the gas cylinder, and the pneumatic automatic valve will open automatically to perform the vacuuming operation. Set the vacuuming time and check the vacuum level through the vacuum gauge.

[0051] During this process, when the specified time ends, all pneumatically operated automatic valves are closed, vacuuming stops, and the vacuum gauge checks the vacuum level. If one or more gas cylinders fail to reach the preset vacuum level, the gas cylinder is marked as a problem gas cylinder, and a separate vacuuming and testing step begins.

[0052] Sort all the problematic gas cylinders that cannot reach the preset vacuum level and mark them as problematic gas cylinder 1 to problematic gas cylinder N. Then, open the pneumatic automatic valve corresponding to each problematic gas cylinder in order to perform individual vacuuming.

[0053] The steps for separate vacuuming are as follows:

[0054] The problematic gas cylinders from Arrangement 1 to Arrangement N are evacuated individually. If the preset vacuum level cannot be reached within the specified time, the problematic gas cylinder is marked as a leaking gas cylinder, and the system alarms to prompt the replacement of the corresponding gas cylinder. If the problematic gas cylinder can be evacuated to the preset vacuum level within the specified time, the problematic gas cylinder mark is removed.

[0055] After replacing the leaking cylinder, the system removes the leaking cylinder mark and performs a separate vacuuming operation on the replaced cylinder. If the preset vacuum level cannot be reached within the specified time, the cylinder is marked as a leaking cylinder, and the system alarms to prompt the replacement of the corresponding cylinder. After replacement, the above steps are repeated until the preset vacuum level can be reached within the specified time.

[0056] If the preset vacuum level is reached within the specified time, the cylinder is marked as normal.

[0057] Repeat the above steps until all gas cylinders in the system are marked as normal gas cylinders, at which point the vacuuming process is complete.

[0058] After the vacuuming process is completed, the pressure transmitter automatically detects the residual pressure in each empty helium cylinder to be filled and automatically arranges the filling sequence.

[0059] The arrangement method is to read the pressure of each gas cylinder through a pressure transmitter and arrange them in order from high pressure to low pressure. The gas cylinders are marked as Arrangement 1 to Arrangement N. The pneumatic automatic valves corresponding to the arranged gas cylinders are arranged and marked as Arrangement 1 to Arrangement N.

[0060] Following the filling sequence arranged above, open valve 1 to fill cylinder 1. When the filling pressure reaches the process setting value, automatically close valve 1 to complete the filling of cylinder 1 and mark it as cylinder 1 complete.

[0061] Then the valve of Arrangement 2 is automatically opened to fill Arrangement 2 gas cylinder. When the filling pressure reaches the process setting value, the valve of Arrangement 2 is automatically closed to complete the filling of Arrangement 2 gas cylinder and mark it as completed.

[0062] Repeat the above steps until all N gas cylinders are filled and marked as completed.

[0063] Once all gas cylinders have been filled, meaning there are no problematic or leaking cylinders in the system, and all arranged cylinders have been remarked as completed cylinders, the pressure of all completed cylinders is checked again using a pressure transmitter to verify whether the preset pressure has been reached.

[0064] Once all gas cylinders reach the preset pressure, the filling process is complete.

[0065] If a gas cylinder fails to reach the preset pressure, then that gas cylinder will be individually pressurized and filled to the preset pressure.

[0066] Example 2 is as follows:

[0067] An automated helium partial pressure filling system includes the following steps:

[0068] First, turn on the equipment power, select the vacuuming program, connect the pneumatic automatic valve to the gas cylinder, and the pneumatic automatic valve will open automatically to perform the vacuuming operation. Set the vacuuming time and check the vacuum level through the vacuum gauge.

[0069] During this process, when the specified time ends, all pneumatically operated automatic valves are closed, vacuuming stops, and the vacuum gauge checks the vacuum level. If one or more gas cylinders fail to reach the preset vacuum level, the gas cylinder is marked as a problem gas cylinder, and a separate vacuuming and testing step begins.

[0070] Sort all the problematic gas cylinders that cannot reach the preset vacuum level and mark them as problematic gas cylinder 1 to problematic gas cylinder N. Then, open the pneumatic automatic valve corresponding to each problematic gas cylinder in order to perform individual vacuuming.

[0071] The steps for separate vacuuming are as follows:

[0072] The problematic gas cylinders from Arrangement 1 to Arrangement N are evacuated individually. If the preset vacuum level cannot be reached within the specified time, the problematic gas cylinder is marked as a leaking gas cylinder, and the system alarms to prompt the replacement of the corresponding gas cylinder. If the problematic gas cylinder can be evacuated to the preset vacuum level within the specified time, the problematic gas cylinder mark is removed.

[0073] After replacing the leaking cylinder, the system removes the leaking cylinder mark and performs a separate vacuuming operation on the replaced cylinder. If the preset vacuum level cannot be reached within the specified time, the cylinder is marked as a leaking cylinder, and the system alarms to prompt the replacement of the corresponding cylinder. After replacement, the above steps are repeated until the preset vacuum level can be reached within the specified time.

[0074] If the preset vacuum level is reached within the specified time, the cylinder is marked as normal.

[0075] Repeat the above steps until all gas cylinders in the system are marked as normal gas cylinders, at which point the vacuuming process is complete.

[0076] After the vacuuming process is completed, the pressure transmitter automatically detects the residual pressure in each empty helium cylinder to be filled and automatically arranges the filling sequence.

[0077] The arrangement method is to read the pressure of each gas cylinder through a pressure transmitter and arrange them in order from high pressure to low pressure. The gas cylinders are marked as Arrangement 1 to Arrangement N. The pneumatic automatic valves corresponding to the arranged gas cylinders are arranged and marked as Arrangement 1 to Arrangement N.

[0078] Following the filling sequence outlined above, a gas filling procedure is performed on all gas cylinders. After all gas cylinders are filled to the process set value, they are then filled in a unified manner to save total filling time.

[0079] The cushioning procedure includes: opening valve 1 to fill cylinder 1 with cushioning gas, and automatically closing valve 1 when the filling pressure reaches the process set value P;

[0080] Then the valve of Arrangement 2 is automatically opened to fill the Arrangement 2 gas cylinder with cushion gas. When the filling pressure reaches the process set value P, the valve of Arrangement 2 is automatically closed.

[0081] Repeat the above steps until the filling pressure of the N gas cylinders reaches the process setting value P.

[0082] At this point, the pressure transmitter automatically detects whether the pressure of the gas cylinders is the process set value P. If not, there are two possibilities: if the pressure of one or more gas cylinders exceeds the process set value P, then the other gas cylinders, except for the one or more gas cylinders, are padded to a uniform value; if the pressure of one or more gas cylinders does not reach the process set value P, then the one or more gas cylinders are padded again to reach the process set value P.

[0083] When all gas cylinders are filled to the same gas pressure, i.e., the process setting value P, all valves are opened simultaneously to fill to the preset pressure.

[0084] At this time, the pressure of the pipeline truck is monitored. If the pressure of the pipeline truck is too low, the information is recorded, the pneumatic automatic valve is closed and an alarm signal is issued to remind the staff to replace the long pipe. After replacement, more information is entered, and the pneumatic automatic valve is automatically opened to continue filling and monitor the pressure data of the pipeline truck. The data is compared with the previously recorded information. If the pressure difference is less than 2MPa, the staff is reminded to replace the long pipe again, and the pressure data is monitored and compared.

[0085] If the pressure difference is greater than 2 MPa, continue filling.

[0086] Once all gas cylinders have been filled, meaning there are no problematic or leaking cylinders in the system, and all arranged cylinders have been remarked as completed cylinders, the pressure of all completed cylinders is checked again using a pressure transmitter to verify whether the preset pressure has been reached.

[0087] Once all gas cylinders reach the preset pressure, the filling process is complete.

[0088] If a gas cylinder fails to reach the preset pressure, then that gas cylinder will be individually pressurized and filled to the preset pressure.

[0089] After filling is complete, the remaining gas in the pipeline is discharged.

[0090] A filling device includes a filling pipeline connected to a factory filling device. The filling pipeline includes several branch pipelines, each of which is equipped with a pneumatically operated automatic valve connected to a gas cylinder. A pressure transmitter is installed on the pneumatically operated automatic valve. The branch pipelines are connected to the gas cylinder through connectors and controlled by the pneumatically operated automatic valves. When the pneumatically operated automatic valves are opened, vacuuming or filling can be performed.

[0091] Vacuum gauges are installed on the branch pipes. The signals measured by the vacuum gauges are transmitted to the vacuum meter, amplified, and then the vacuum level of the measured vacuum environment can be displayed.

[0092] It also includes a PLC programmable logic controller, which is electrically connected to the pneumatically actuated automatic valve, pressure transmitter and vacuum gauge, receives electrical signals from the pressure transmitter and vacuum gauge, monitors the cylinder pressure and vacuum status, and controls the pneumatically actuated automatic valve according to the data and preset program.

[0093] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic helium partial pressure filling system, characterized in that: Includes the following steps: S1: The pneumatically operated automatic valve is connected to the gas cylinder, automatically opening the pneumatically operated automatic valve to perform a vacuuming operation and detect the vacuum level; S2: If the preset vacuum level cannot be achieved within the specified time, close all pneumatic automatic valves and open them one by one in sequence to perform individual vacuuming. S3: After the vacuuming step is completed, the residual pressure in each empty helium bottle to be filled is automatically detected, and the filling sequence is automatically arranged. S4: Following the filling sequence arranged in step S3, automatically control the pneumatic actuator to open and close the automatic valve to fill helium and detect the filling pressure; S5: Continue in this manner until all gas cylinders are filled; In step S4, following the filling sequence arranged in step S3, valve 1 is opened to fill gas cylinder 1 with cushion gas. When the filling pressure reaches the process set value P, valve 1 is automatically closed. Then the valve of Arrangement 2 is automatically opened to fill the Arrangement 2 gas cylinder with cushion gas. When the filling pressure reaches the process set value P, the valve of Arrangement 2 is automatically closed. Repeat the above steps until the filling pressure of the N gas cylinders reaches the process setting value P.

2. The automatic helium partial pressure filling system according to claim 1, characterized in that: In step S2, the first to Nth gas cylinders are evacuated individually. If the preset vacuum level cannot be achieved within a specified time, the gas cylinder is marked as a leaking gas cylinder, and the system alarms to prompt the replacement of the corresponding gas cylinder.

3. The automatic helium partial pressure filling system according to claim 2, characterized in that: After replacing the corresponding gas cylinder, the system removes the leaking gas cylinder mark and performs a separate vacuuming operation on the replaced gas cylinder. If the preset vacuum level cannot be reached within the specified time, the gas cylinder is marked as a leaking gas cylinder, and the system alarms to prompt the replacement of the corresponding gas cylinder. If the preset vacuum level is reached within the specified time, the cylinder is marked as normal. Repeat the above steps until all gas cylinders in the system are marked as normal gas cylinders, at which point the vacuuming process is complete.

4. The automatic helium partial pressure filling system according to claim 1, characterized in that: The arrangement method is to read the pressure of each gas cylinder and arrange them in order from high pressure to low pressure, and mark the gas cylinders as Arrangement 1 to Arrangement N. The pneumatic automatic valves corresponding to the arranged gas cylinders are arranged and marked as Arrangement 1 to Arrangement N.

5. The automatic helium partial pressure filling system according to claim 4, characterized in that: In step S4, following the filling sequence arranged in step S3, valve 1 is opened to fill gas cylinder 1. When the filling pressure reaches the process set value, valve 1 is automatically closed. Then the valve of Arrangement 2 is automatically opened to fill the Arrangement 2 gas cylinder. When the filling pressure reaches the process setting value, the valve of Arrangement 2 is automatically closed. Repeat the above steps until all N gas cylinders are filled.

6. The automatic helium partial pressure filling system according to claim 1, characterized in that: When all gas cylinders are filled to the same gas pressure, i.e., the process setting value P, all valves are opened simultaneously to fill to the preset pressure.

7. A filling device, characterized in that, The helium automatic pressure-splitting filling system according to any one of claims 1-6 is characterized in that it includes a filling pipeline, the filling pipeline includes several branch pipelines, each of the several branch pipelines is equipped with a pneumatically operated automatic valve connected to a gas cylinder, and the pneumatically operated automatic valve is equipped with a pressure transmitter.

8. The filling device according to claim 7, characterized in that: Vacuum gauges are installed on the branch pipes.

9. The filling device according to claim 8, characterized in that: It also includes a PLC programmable logic controller, which is electrically connected to pneumatically actuated automatic valves, pressure transmitters, and vacuum gauges.

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