High-pressure gas tank group water level pressure control device

Abstract

The utility model relates to the technical field of high-pressure gas tanks, and provides a water level pressure control device for a high-pressure gas tank group. Comprising a high-pressure gas tank group, a high-pressure water level pipe, a buoy, a circuit controller and a group of magnetic reed switches for controlling the water level in the high-pressure water level pipe to float in a water level range corresponding to a high-pressure mode or a water level range corresponding to a low-pressure mode, the high-pressure water level pipe is communicated with the interior of the high-pressure gas tank group, the magnetic reed switches are arranged at different height positions of the outer wall of the high-pressure water level pipe and connected with the input end of the circuit controller, and the control signal output end of the circuit controller is connected with the control signal input end of the high-pressure pump. The buoy is magnetic, is installed in the high-pressure water level pipe, and can move up and down along with the water level and trigger the magnetic reed switch at the corresponding height. The pressure range of the high-pressure gas tank group can be efficiently and rapidly adjusted, and pressure dynamic control in different forging modes can be achieved.

Description

Technical Field

[0001] This invention relates to the field of high-pressure gas tank technology, and more specifically to a high-pressure gas tank group water level and pressure control device. Background Technology

[0002] In traditional pumps, especially hydraulic presses with accumulator drives, the water level control system typically employs a single pumping mode, i.e., a circulation mode, which can only maintain a fixed maximum and minimum pressure. While this design can meet basic forging requirements, it lacks flexibility when facing different forging processes. For example, during specific processes such as upsetting (high-pressure mode) and drawing (low-pressure mode), the system cannot quickly adjust the pressure range according to actual needs, resulting in low work efficiency or failure to meet the required intrinsic quality standards.

[0003] Furthermore, the existing water level control system's pressure control is singular and cannot be dynamically adjusted, causing the entire high-pressure system to operate under ultra-high pressure for extended periods. This increases the risk of failure for critical components such as high-pressure pipelines and valve systems. This not only shortens the equipment's lifespan but also increases maintenance costs. Moreover, due to the lack of a flexible pressure regulation mechanism, the system performs poorly when dealing with different forging processes, limiting the improvement of production efficiency.

[0004] Therefore, a water level control system is needed that can adjust the pressure range according to forging requirements and can dynamically adjust the pressure within the pressure range. Utility Model Content

[0005] In view of this, the present application provides a high-pressure gas tank group water level and pressure control device, which can efficiently and quickly adjust the pressure range of the high-pressure gas tank group and realize dynamic pressure control under different forging modes.

[0006] This application provides a high-pressure gas tank group water level pressure control device, including a high-pressure gas tank group, a high-pressure water level pipe, a float, a circuit controller, and a set of reed switches for controlling the water level in the high-pressure water level pipe to float within the water level range corresponding to the high-pressure mode or the water level range corresponding to the low-pressure mode.

[0007] The high-pressure water level pipe is connected to the interior of the high-pressure gas tank group. The reed switch is set at different heights on the outer wall of the high-pressure water level pipe. The reed switch is connected to the input terminal of the circuit controller. The control signal output terminal of the circuit controller is connected to the control signal input terminal of the high-pressure pump.

[0008] The float is magnetic, installed inside the high-pressure water level pipe, and can move up and down with the water level and trigger a reed switch at the corresponding height.

[0009] The reed switch is configured such that when the float is at the upper limit of the water level range corresponding to the high-pressure mode or the upper limit of the water level range corresponding to the low-pressure mode, the corresponding reed switch is triggered, so that the circuit controller sends a control signal to the high-pressure pump to enter the circulation mode; when the float is at the lower limit of the water level range corresponding to the high-pressure mode or the lower limit of the water level range corresponding to the low-pressure mode, the corresponding reed switch is triggered, so that the circuit controller sends a control signal to the high-pressure pump to enter the high-pressure mode.

[0010] When the high-pressure pump is in circulation mode, the high-pressure gas tank group discharges water to the water press; when the high-pressure pump is in high-pressure mode, the high-pressure pump injects water into the high-pressure gas tank group.

[0011] This embodiment of the application, by installing a set of reed switches on the high-pressure water level pipe and connecting them to the circuit controller and high-pressure pump, allows the system to flexibly switch between high-pressure and low-pressure modes. When the float is at the upper limit of the water level range corresponding to either the high-pressure or low-pressure mode, the system automatically enters the circulation mode; conversely, when the float is at the lower limit, the system enters the high-pressure mode. This design not only ensures that the system can provide the required precise pressure range in different forging processes but also allows for dynamic pressure adjustment within each range, thereby significantly improving forging efficiency and product quality, while extending equipment lifespan and reducing maintenance costs.

[0012] In one embodiment, the reed switch includes a second reed switch and a fourth reed switch, wherein the second reed switch is disposed at the second water level and the fourth reed switch is disposed at the fourth water level.

[0013] The secondary water level is the upper limit of the water level range corresponding to the high-pressure mode, and the quaternary water level is the lower limit of the water level range corresponding to the high-pressure mode.

[0014] In this embodiment, the secondary water level serves as the upper limit of the water level range corresponding to the high-pressure mode, while the quaternary water level serves as the lower limit. This ensures that water level fluctuations under high-pressure mode remain within a reasonable range. This allows the system to maintain a stable pressure level during high-pressure forging, preventing operational instability or equipment damage caused by excessively high or low water levels, thus improving system reliability and safety.

[0015] In one embodiment, the reed switch further includes a third reed switch and a fifth reed switch, wherein the third reed switch is disposed at the third water level and the fifth reed switch is disposed at the fifth water level;

[0016] The third-level water level is the upper limit of the water level range corresponding to the low-pressure mode, and the fifth-level water level is the lower limit of the water level range corresponding to the low-pressure mode.

[0017] In this embodiment, the three-level water level serves as the upper limit of the water level range corresponding to the low-pressure mode, while the five-level water level serves as the lower limit, ensuring that the water level remains within a reasonable range under low-pressure mode. This allows the system to maintain a low and stable pressure level when performing low-pressure forging tasks, such as drawing operations, ensuring process consistency and product quality, while also reducing equipment wear and improving overall operating efficiency.

[0018] In one embodiment, the bottom of the high-pressure gas tank group is further provided with a minimum liquid level valve for opening or closing the passage between the high-pressure gas tank group and the high-pressure pump or the hydraulic press.

[0019] This application embodiment incorporates a minimum liquid level valve at the bottom of the high-pressure gas tank group to open or close the passage between the high-pressure gas tank group and the high-pressure pump or hydraulic press. This ensures that in extreme situations (such as abnormal rises or falls in water level), the passage can be cut off in a timely manner, preventing high-pressure explosions or other safety accidents. This not only enhances system safety but also ensures the long-term stable operation of the equipment, reducing potential risks and maintenance costs.

[0020] In one embodiment, the high-pressure water level pipe is further provided with a first reed switch at a preset first-level water level. The first reed switch is connected to the input terminal of the circuit controller. The control signal output terminal of the circuit controller is connected to the control signal input terminals of the minimum liquid level valve, the high-pressure pump, and the water press. The first-level water level is higher than the second-level water level.

[0021] The first reed switch is configured to be triggered when the float is at the first water level, so that the circuit controller sends a shutdown signal to the minimum liquid level valve, the high-pressure pump and the hydraulic press.

[0022] This embodiment of the application triggers a first reed switch when the float is at the first water level, causing the circuit controller to send shutdown signals to the minimum liquid level valve, high-pressure pump, and hydraulic press. This ensures that the system can respond quickly and take protective measures when the water level abnormally rises to the limit value, effectively avoiding high-pressure explosions and other safety hazards, and improving the overall safety and reliability of the system.

[0023] In one embodiment, the high-pressure water level pipe is also equipped with a sixth reed switch at a preset sixth water level. The sixth reed switch is connected to the input terminal of the circuit controller. The sixth water level is lower than the fifth water level.

[0024] The sixth reed switch is configured to be triggered when the float is at the sixth water level, so that the circuit controller sends a shutdown signal to the hydraulic press.

[0025] This embodiment of the application triggers the sixth reed switch when the float is at level six, causing the circuit controller to send a shutdown signal to the hydraulic press. This ensures that the system can immediately stop the hydraulic press when the water level abnormally drops to its limit, preventing equipment failure or safety accidents caused by excessively low water levels, and further enhancing the safety and stability of the system.

[0026] In one embodiment, the tank body of the high-pressure gas tank group is equipped with a pressure gauge for monitoring the tank pressure and a pressure gauge switch for turning the pressure gauge on or off.

[0027] This embodiment of the application, by installing pressure gauges and pressure gauge switches on the tanks of the high-pressure gas tank group, allows operators to monitor the internal pressure of the tanks at any time, facilitating timely adjustments and maintenance, and ensuring the normal operation of the system. Furthermore, the presence of the pressure gauge switches facilitates the opening and closing of the pressure gauges, simplifying daily operations and improving the system's convenience and maintainability.

[0028] In one embodiment, the reed switch is a normally open reed switch.

[0029] The reed switch in this embodiment uses a normally open reed switch, which remains open when there is no external magnetic field and only closes when a magnet approaches, thus avoiding the possibility of false triggering. This not only improves the system's response accuracy but also extends the reed switch's lifespan, reduces maintenance frequency and costs, and ensures the long-term stable operation of the system.

[0030] In one embodiment, the high-pressure water level pipe is provided with an airlock valve at the top and a waterlock valve at the bottom.

[0031] The high-pressure gas tank group water level and pressure control device of this application embodiment uses a set of magnetic reed switches installed on the high-pressure water level pipe and connected to the circuit controller and high-pressure pump. The system can flexibly switch between high-pressure mode and low-pressure mode. When the float is at the upper limit of the water level range corresponding to either high-pressure mode or low-pressure mode, the system automatically enters the circulation mode; when the float is at the lower limit, the system enters the high-pressure mode. This design not only ensures that the system can provide the required precise pressure range in different forging processes, but also dynamically adjusts the pressure within each range, thereby significantly improving forging efficiency and product quality, while extending equipment service life and reducing maintenance costs. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of a high-pressure gas tank group water level and pressure control device provided in one embodiment of this application;

[0034] In the diagram: 1-High-pressure gas tank group, 2-Airlock valve, 3-High-pressure water level pipe, 4-Reed switch, 5-Float, 6-Water gate valve, 7-Pressure gauge switch, 8-Pressure gauge, 9-Minimum liquid level valve, 10-Circuit controller, 41-First reed switch, 42-Second reed switch, 43-Third reed switch, 44-Fourth reed switch, 45-Fifth reed switch, 46-Sixth reed switch Detailed Implementation

[0035] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0036] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0038] like Figure 1 As shown, a high-pressure gas tank group water level pressure control device includes a high-pressure gas tank group 1, a high-pressure water level pipe 3, a float 5, a circuit controller 10, and a set of reed switches 4 for controlling the water level in the high-pressure water level pipe 3 to float within the water level range corresponding to the high-pressure mode or the water level range corresponding to the low-pressure mode.

[0039] The high-pressure water level pipe 3 is connected to the interior of the high-pressure gas tank group 1. The magnetic reed switch 4 is set at different heights on the outer wall of the high-pressure water level pipe 3. The magnetic reed switch 4 is connected to the input terminal of the circuit controller 10. The control signal output terminal of the circuit controller 10 is connected to the control signal input terminal of the high-pressure pump.

[0040] The float 5 is magnetic, installed inside the high-pressure water level pipe 3, and can move up and down with the water level and trigger the corresponding reed switch 4 at the corresponding height.

[0041] The reed switch 4 is configured such that when the float 5 is at the upper limit of the water level range corresponding to the high-pressure mode or the upper limit of the water level range corresponding to the low-pressure mode, the corresponding reed switch 4 is triggered, so that the circuit controller 10 sends a control signal to the high-pressure pump to enter the circulation mode; when the float 5 is at the lower limit of the water level range corresponding to the high-pressure mode or the lower limit of the water level range corresponding to the low-pressure mode, the corresponding reed switch 4 is triggered, so that the circuit controller 10 sends a control signal to the high-pressure pump to enter the high-pressure mode.

[0042] When the high-pressure pump is in circulation mode, the high-pressure gas tank group 1 discharges water to the water press; when the high-pressure pump is in high-pressure mode, the high-pressure pump injects water into the high-pressure gas tank group 1.

[0043] In application, the high-pressure water level pipe 3 is made of stainless steel.

[0044] In one embodiment, the reed switch 4 includes a second reed switch 42 and a fourth reed switch 44, wherein the second reed switch 42 is disposed at the second water level and the fourth reed switch 44 is disposed at the fourth water level.

[0045] Level 2 water level is the upper limit of the water level range corresponding to the high-pressure mode, and Level 4 water level is the lower limit of the water level range corresponding to the high-pressure mode.

[0046] In the application, the reed switch 4 includes a second reed switch 42 and a fourth reed switch 44, which are respectively set at the secondary and quaternary water levels. In high-pressure mode, the pressure fluctuation range is 26-29 MPa, and the secondary water level is the upper limit of the water level range corresponding to the high-pressure mode (the water level corresponding to 29 MPa). When using the high-pressure (upsetting) mode, when the float 5 rises to this position, the second reed switch 42 is triggered, the reed switch contacts close, and the signal is transmitted to the corresponding pin of the circuit controller 10 through the signal line. After receiving this signal, the circuit controller 10 sends a control signal to the high-pressure pump to enter the circulation mode through the control line, so that the high-pressure pump operates at a lower power, keeping the liquid circulating in the system without increasing the pressure. At this time, the high-pressure gas tank group 1 discharges water to the hydraulic press. The quaternary water level is the lower limit of the water level range corresponding to the high-pressure mode (the water level corresponding to 26 MPa). When the float 5 descends to this position, the fourth reed switch 44 is triggered, the reed switch contacts open, and the signal is transmitted to the circuit controller 10 through the signal line. Upon receiving this signal, the circuit controller 10 sends a control signal to the high-pressure pump via the control line to enter the high-pressure mode, causing the high-pressure pump to replenish water into the high-pressure gas tank group 1 to restore the required pressure level. This ensures that the pressure during the high-pressure forging process is precisely controlled within the pressure range required by the high-pressure mode, improving the reliability and efficiency of the system.

[0047] In one embodiment, the reed switch 4 further includes a third reed switch 43 and a fifth reed switch 45, wherein the third reed switch 43 is disposed at the third water level and the fifth reed switch 45 is disposed at the fifth water level.

[0048] Level 3 water level represents the upper limit of the water level range corresponding to the low-pressure mode, while Level 5 water level represents the lower limit of the water level range corresponding to the low-pressure mode.

[0049] In the application, the reed switch 4 also includes a third reed switch 43 and a fifth reed switch 45, which are respectively set at the third and fifth water levels. In low-pressure mode, the pressure fluctuation range is 24-27 MPa, and the third water level is the upper limit of the water level range corresponding to the low-pressure mode (the water level corresponding to 27 MPa). When using the low-pressure (extended) mode, when the float 5 rises to this position, the third reed switch 43 is triggered, the reed switch contacts close, and the signal is transmitted to the corresponding pin of the circuit controller 10 through the signal line. After receiving this signal, the circuit controller 10 sends a control signal to the high-pressure pump to enter the circulation mode through the control line, so that the high-pressure pump operates at a lower power, keeping the liquid circulating in the system without increasing the pressure. At this time, the high-pressure gas tank group 1 discharges water to the hydraulic press. The fifth water level represents the lower limit of the water level range corresponding to the low-pressure mode (25 MPa). When the float 5 descends to this position, the fifth reed switch 45 is triggered, the reed switch contacts open, and the signal is transmitted to the circuit controller 10 via the signal line. Upon receiving this signal, the circuit controller 10 sends a control signal to the high-pressure pump to enter the high-pressure mode, causing the high-pressure pump to quickly replenish liquid to restore the required pressure level. This ensures that the pressure during the low-pressure forging process is precisely controlled within the pressure range required for the low-pressure mode, improving the reliability and efficiency of the system.

[0050] In one embodiment, the bottom of the high-pressure gas tank group 1 is also provided with a minimum liquid level valve 9 for opening or closing the passage between the high-pressure gas tank group 1 and the high-pressure pump or hydraulic press.

[0051] In one embodiment, the high-pressure water level pipe 3 is also provided with a first magnetic reed switch 41 at a preset first-level water level. The first magnetic reed switch 41 is connected to the input terminal of the circuit controller 10. The control signal output terminal of the circuit controller 10 is connected to the control signal input terminal of the lowest liquid level valve 9, the high-pressure pump and the water press. The first-level water level is higher than the second-level water level.

[0052] The first reed switch 41 is configured to be triggered when the float 5 is at the first water level, so that the circuit controller 10 sends a shutdown signal to the minimum liquid level valve 9, the high-pressure pump and the water press.

[0053] In one embodiment, a sixth reed switch 4 is also provided on the high-pressure water level pipe 3 at a preset sixth water level. The sixth reed switch 4 is connected to the input terminal of the circuit controller 10. The sixth water level is lower than the fifth water level.

[0054] The sixth reed switch 4 is configured to be triggered when the float 5 is at the sixth water level, so that the circuit controller 10 sends a shutdown signal to the hydraulic press.

[0055] In one embodiment, the tank body of the high-pressure gas tank group 1 is provided with a pressure gauge for monitoring the tank pressure and a pressure gauge switch 7 for turning the pressure gauge 8 on or off.

[0056] In one embodiment, the reed switch 4 is a normally open reed switch.

[0057] In one embodiment, the high-pressure water level pipe 3 is provided with an airlock valve 2 at the top and a waterlock valve 6 at the bottom.

[0058] In the application, the circuit controller 10 can be a PLC controller, such as the SIMATIC S7-1200 series controller. Each reed switch is connected to a pin of the circuit controller 10. The on or off state of the reed switch is input to each pin in the form of high or low level signals. By judging the level of the pins, the state of each reed switch can be known, and a corresponding control signal can be output. The method of outputting different control signals based on the high or low level of different input pins is prior art and will not be described in detail in this application.

[0059] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A high-pressure gas tank group water level and pressure control device, characterized in that: It includes a high-pressure gas tank group (1), a high-pressure water level pipe (3), a float (5), a circuit controller (10), and a set of reed switches (4) for controlling the water level in the high-pressure water level pipe (3) to float within the water level range corresponding to the high-pressure mode or the water level range corresponding to the low-pressure mode. The high-pressure water level pipe (3) is connected to the interior of the high-pressure gas tank group (1). The reed switch (4) is set at different heights on the outer wall of the high-pressure water level pipe (3). The reed switch (4) is connected to the input terminal of the circuit controller (10). The control signal output terminal of the circuit controller (10) is connected to the control signal input terminal of the high-pressure pump. The float (5) is magnetic, installed inside the high-pressure water level pipe (3), and can move up and down with the water level and trigger the corresponding reed switch (4); The reed switch (4) is configured such that when the float (5) is at the upper limit of the water level range corresponding to the high-pressure mode or the upper limit of the water level range corresponding to the low-pressure mode, the corresponding reed switch (4) is triggered, so that the circuit controller (10) sends a control signal to the high-pressure pump to enter the circulation mode; when the float (5) is at the lower limit of the water level range corresponding to the high-pressure mode or the lower limit of the water level range corresponding to the low-pressure mode, the corresponding reed switch (4) is triggered, so that the circuit controller (10) sends a control signal to the high-pressure pump to enter the high-pressure mode. When the high-pressure pump is in circulation mode, the high-pressure gas tank group (1) discharges water to the water press; when the high-pressure pump is in high-pressure mode, the high-pressure pump injects water into the high-pressure gas tank group (1).

2. The high-pressure gas tank group water level and pressure control device as described in claim 1, characterized in that, The reed switch (4) includes a second reed switch (42) and a fourth reed switch (44). The second reed switch (42) is located at the second water level, and the fourth reed switch (44) is located at the fourth water level. The secondary water level is the upper limit of the water level range corresponding to the high-pressure mode, and the quaternary water level is the lower limit of the water level range corresponding to the high-pressure mode.

3. The high-pressure gas tank group water level and pressure control device as described in claim 2, characterized in that, The reed switch (4) also includes a third reed switch (43) and a fifth reed switch (45). The third reed switch (43) is set at the third water level, and the fifth reed switch (45) is set at the fifth water level. The third-level water level is the upper limit of the water level range corresponding to the low-pressure mode, and the fifth-level water level is the lower limit of the water level range corresponding to the low-pressure mode.

4. The high-pressure gas tank group water level and pressure control device as described in claim 3, characterized in that, The bottom of the high-pressure gas tank group (1) is also provided with a minimum liquid level valve (9) for opening or closing the passage between the high-pressure gas tank group (1) and the high-pressure pump or the hydraulic press.

5. The high-pressure gas tank group water level and pressure control device as described in claim 4, characterized in that, The high-pressure water level pipe (3) is also equipped with a first reed switch (41) at a preset first-level water level. The first reed switch (41) is connected to the input terminal of the circuit controller (10). The control signal output terminal of the circuit controller (10) is connected to the control signal input terminal of the lowest liquid level valve (9), the high-pressure pump and the water press. The first-level water level is higher than the second-level water level. The first reed switch (41) is configured to be triggered when the float (5) is at the first water level, so that the circuit controller (10) sends a shut-off signal to the minimum liquid level valve (9), the high pressure pump and the water press.

6. The high-pressure gas tank group water level and pressure control device as described in claim 4, characterized in that, The high-pressure water level pipe (3) is also equipped with a sixth reed switch (4) at a preset sixth water level. The sixth reed switch (4) is connected to the input terminal of the circuit controller (10). The sixth water level is lower than the fifth water level. The sixth reed switch (4) is configured to be triggered when the float (5) is at the sixth water level, so that the circuit controller (10) sends a shutdown signal to the hydraulic press.

7. The high-pressure gas tank group water level and pressure control device as described in claim 1, characterized in that, The high-pressure gas tank group (1) is equipped with a pressure gauge for monitoring the tank pressure and a pressure gauge switch (7) for opening or closing the pressure gauge (8).

8. The high-pressure gas tank group water level and pressure control device as described in claim 1, characterized in that, The reed switch (4) is a normally open reed switch.

9. The high-pressure gas tank group water level and pressure control device as described in claim 1, characterized in that, The high-pressure water level pipe (3) is equipped with an air gate valve (2) at the top and a water gate valve (6) at the bottom.

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