Control device for preventing hydrogen leakage of generator
By introducing a level gauge and float system into the generator oil tank, the oil level can be monitored in real time and remote alarms can be triggered. This solves the problem of increased inspection workload and safety hazards caused by hydrogen leakage from the generator, and reduces the difficulty of preventing and cleaning up hydrogen leakage.
Patent Information
- Application Number
- CN202422643249.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-10-31
AI Technical Summary
In existing technologies, hydrogen leakage from generators is a common problem, which leads to a drop in hydrogen pressure, affects cooling performance, increases the workload of inspections, and may cause fires or explosions if the leakage is severe. Furthermore, existing fuel tank level calibration is not convenient to perform remotely.
A control device for preventing hydrogen leakage from a generator was designed, including a level tank, a float, a contact switch, and a signal transmitter. The float triggers the switch by changing the level, which monitors the oil level in real time. The device remotely notifies staff of any abnormal oil level using a secondary display instrument and a signal transmitter. The device also incorporates a U-shaped pipe and a drain outlet to reduce the difficulty of cleaning.
It enables real-time monitoring and early warning of hydrogen leakage from generators, reduces the workload of inspections, improves safety, reduces the difficulty of cleaning for staff, and maintains a hygienic working environment.
Smart Images
Figure CN223514738U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to generator technical field, concretely is a control device that prevents hydrogen leakage of generator. BACKGROUND
[0002] Modern large generator operation can produce energy loss, and the loss exists in the form of active power conversion into heat, if these heat is not dissipated, the generator temperature will rise, the insulation material deteriorates and ages, and the normal operation of the unit is threatened, so a cooling system must be added to take away the heat generated in the generator due to loss, modern large units basically use hydrogen as cooling medium, the hydrogen system is composed of generator stator shell, end cover, hydrogen cooler, sealing tile and hydrogen pipeline to form a full-closed airtight structure, hydrogen is forced to circulate by the paddle fan installed at the both ends of the rotor, and is cooled by the hydrogen cooler arranged at the four corners of the stator frame, which has the advantages of high efficiency, good cooling effect, safety and reliability, hydrogen leakage is a common phenomenon in the operation of hydrogen-cooled generator, the amount of hydrogen leakage is one of the main technical indicators for the safe operation of hydrogen-cooled generator, a large amount of hydrogen leakage can cause hydrogen pressure to drop, affect the cooling of the generator, limit the load of the generator, and serious hydrogen leakage can cause fire around the generator, and even cause hydrogen explosion, resulting in damage to the generator and even shutdown of the unit, therefore, one of the necessary conditions for maintaining the normal operation of the hydrogen-cooled generator is to maintain the normal operation of the hydrogen system, including ensuring the hydrogen pressure in the machine, ensuring the normal temperature and temperature difference of the cold hydrogen in the machine, and ensuring the purity of the hydrogen in the machine.
[0003] The existing oil tank can only provide the running personnel with the information of judging the abnormal float oil tank through the large alarm of the hydrogen leakage rate of the generator when leakage occurs during use, at this time, hydrogen leakage has occurred, or when the node of the hydrogen leakage of the generator occurs, personnel are arranged to stay on site and wait for the oil level of the float oil tank, the liquid level of the oil tank is not convenient for remote calibration to the staff, so the staff needs to conduct on-site inspection, thereby increasing the inspection workload of the staff. UTILITY MODEL CONTENTS
[0004] The utility model discloses a control device that prevents hydrogen leakage of generator, solveed the existing oil tank in the process of using, when leaking, can only provide the running personnel with the information of judging the abnormal float oil tank through the large alarm of the hydrogen leakage rate of the generator, at this time, hydrogen leakage has occurred, or when the node of the hydrogen leakage of the generator occurs, personnel are arranged to stay on site and wait for the oil level of the float oil tank, the liquid level of the oil tank is not convenient for remote calibration to the staff, so the staff needs to conduct on-site inspection, thereby increasing the inspection workload of the staff.
[0005] This application provides a control device for preventing hydrogen leakage from a generator, including an oil tank and a level cylinder disposed on one side of the oil tank. A transmitter is mounted on the upper end of the level cylinder via a second flange, and a sliding rod is mounted on the lower end of the transmitter. A high-position contact switch and a low-position contact switch are fixedly mounted sequentially from top to bottom on the outer wall of the sliding rod. A float ball is slidably connected to the outer wall of the sliding rod between the high-position contact switch and the low-position contact switch. A secondary display instrument is mounted on the upper end of the transmitter, and a signal transmitter is mounted on the upper end of the secondary display instrument.
[0006] By adopting the above technical solution, the floating of the liquid inside the level tank can drive the float to float. When the liquid level inside the tank floats, the float will float and contact the low-level contact switch and the high-level contact switch, thereby allowing the signal transmitter to send the information about the oil level being too high or too low to the receiving end of the operator. In addition, the secondary display instrument can adjust the values of the low-level contact switch and the high-level contact switch, thereby preventing hydrogen leakage from the generator.
[0007] Optionally, two sets of connecting pipes are fixedly installed on one side of the oil tank via a first flange, and the two sets of connecting pipes are fixedly installed to the outer wall of the liquid level cylinder.
[0008] By adopting the above technical solution, the first flange can fix the connecting pipe, and the connecting pipe can connect the liquid level cylinder and the oil tank.
[0009] Optionally, valves are rotatably installed in the inner walls of the two sets of connecting pipes, and the two sets of connecting pipes are arranged in an up-down position.
[0010] By adopting the above technical solution, the valve can be used to close and open the connecting pipe.
[0011] Optionally, a filler neck is fixedly installed on the outer wall above the fuel tank.
[0012] By adopting the above technical solution, the fuel filler port can be used to refuel the fuel tank.
[0013] Optionally, an exhaust port is fixedly installed on the outer wall above the oil tank.
[0014] By adopting the above technical solution, the excessive air pressure inside the fuel tank can be released through the exhaust port.
[0015] Optionally, an oil return port is fixedly installed on the outer wall above the oil tank.
[0016] By adopting the above technical solution, external equipment can be connected through the oil return port, thereby achieving the function of oil return.
[0017] Optionally, multiple sets of support legs are fixedly installed on the outer wall below the fuel tank.
[0018] By adopting the above technical solution, the support feet can be used to fix the fuel tank.
[0019] Optionally, a drain outlet is fixedly installed on the outer wall below the oil tank, and a U-shaped pipe is installed at the lower end of the drain outlet.
[0020] By adopting the above technical solution, the sewage outlet and U-shaped pipe can be used to discharge sewage. The output end of the U-shaped pipe is equipped with an external equipment collection cylinder. Therefore, the U-shaped pipe can prevent oil from being discharged to the ground, reduce the difficulty of cleaning for workers, and maintain hygiene.
[0021] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:
[0022] The technical solution of this application uses the floating liquid inside the level tank to drive the float ball to float. When the liquid level inside the tank floats, the float ball will float and contact the low-level contact switch and the high-level contact switch, thereby allowing the signal transmitter to send the information of excessively high or low oil level to the receiving end of the operator. In addition, the secondary display instrument can adjust the values of the low-level contact switch and the high-level contact switch, thereby preventing hydrogen leakage from the generator.
[0023] The drain outlet and U-shaped pipe can be used to discharge sewage. The output end of the U-shaped pipe is equipped with an external equipment collection cylinder. The U-shaped pipe can prevent oil and grease from being discharged to the ground, reduce the difficulty of cleaning for workers, and maintain hygiene. Attached Figure Description
[0024] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0025] Figure 1 This is a front view schematic diagram of a control device for preventing hydrogen leakage from a generator according to the present invention;
[0026] Figure 2 This is a front view schematic diagram of the sliding rod of a control device for preventing hydrogen leakage from a generator according to this utility model;
[0027] Figure 3 This utility model relates to a control device for preventing hydrogen leakage from a generator. Figure 2 Enlarged view of point A in the middle.
[0028] In the diagram: 1. Oil tank; 2. First flange; 3. Connecting pipe; 4. Liquid level cylinder; 5. Valve; 6. Second flange; 7. Transmitter; 8. Secondary display instrument; 9. Signal transmitter; 10. Sliding rod; 11. High-position contact switch; 12. Low-position contact switch; 13. Float; 14. Oil return port; 15. Exhaust port; 16. Oil filling port; 17. Sewage discharge port; 18. U-shaped pipe; 19. Support leg. Detailed Implementation
[0029] Please see Figures 1-3 This utility model provides a technical solution: a control device for preventing hydrogen leakage from a generator, including an oil tank 1 and a liquid level cylinder 4 disposed on one side of the oil tank 1. A transmitter 7 is installed at the upper end of the liquid level cylinder 4 through a second flange 6. A sliding rod 10 is installed at the lower end of the transmitter 7. A high-position contact switch 11 and a low-position contact switch 12 are fixedly installed on the outer wall of the sliding rod 10 from top to bottom. A float ball 13 is slidably connected to the outer wall of the sliding rod 10 located between the high-position contact switch 11 and the low-position contact switch 12. A secondary display instrument 8 is installed at the upper end of the transmitter 7. A signal transmitter 9 is installed at the upper end of the secondary display instrument 8.
[0030] A drain outlet 17 is fixedly installed on the outer wall below the oil tank 1, and a U-shaped pipe 18 is installed at the lower end of the drain outlet 17.
[0031] In the technical solution of this utility model, the float ball 13 can be driven to float by the floating liquid inside the liquid level tank. When the liquid level inside the oil tank 1 floats, the float ball 13 will float and contact the low-level contact switch 12 and the high-level contact switch 11, so that the signal transmitter 9 can transmit the oil level too high or too low to the receiving end of the operator. The secondary display instrument 8 can adjust the values of the low-level contact switch 12 and the high-level contact switch 11, thereby preventing hydrogen leakage from the generator.
[0032] In addition, the drain outlet 17 and the U-shaped pipe 18 can be used to discharge sewage. The output end of the U-shaped pipe 18 is equipped with an external equipment collection tube. Therefore, the U-shaped pipe 18 can prevent oil from being discharged to the ground, reduce the difficulty of cleaning for workers, and maintain hygiene.
[0033] In the technical solution of this utility model, such as Figure 1 As shown, two sets of connecting pipes 3 are fixedly installed on one side of the oil tank 1 via the first flange 2, and the two sets of connecting pipes 3 are fixedly installed on the outer wall of the liquid level cylinder 4. The first flange 2 can fix the connecting pipes 3, and the connecting pipes 3 can connect the liquid level cylinder 4 and the oil tank 1. Valves 5 are rotatably installed in the inner walls of the two sets of connecting pipes 3, and the two sets of connecting pipes 3 are arranged in an up-down position. The valves 5 can close and open the connecting pipes 3.
[0034] In the technical solution of this utility model, such as Figure 1 As shown, a filler neck 16 is fixedly installed on the outer wall above the fuel tank 1. The filler neck 16 can be used to fill the fuel tank 1. A vent 15 is fixedly installed on the outer wall above the fuel tank 1. The vent 15 can be used to release excessive air pressure inside the fuel tank 1. A return oil port 14 is fixedly installed on the outer wall above the fuel tank 1. The return oil port 14 can be connected to external equipment to return oil. Multiple sets of support legs 19 are fixedly installed on the outer wall below the fuel tank 1. The support legs 19 can be used to fix the fuel tank 1.
[0035] In use, the oil filler port 16 can be used to fill the oil tank 1, the vent port 15 can release excessive air pressure inside the oil tank 1, and the return port 14 can be connected to external equipment to return oil. The oil inside the oil tank 1 enters the level tank 4 through the connecting pipe 3, and the valve 5 can close and open the connecting pipe 3. The floating of the liquid inside the level tank can cause the float ball 13 to float. When the liquid level inside the oil tank 1 fluctuates, the float ball 13 will float and contact the lower position to abut the open valve. The switch 12 and the high-level contact switch 11 allow the signal transmitter 9 to send the information about excessively high or low oil levels to the receiving end of the operator. The secondary display instrument 8 can adjust the values of the low-level contact switch 12 and the high-level contact switch 11, thereby preventing hydrogen leakage from the generator. The drain port 17 and the U-shaped pipe 18 can be used for sewage discharge. The output end of the U-shaped pipe 18 is equipped with an external equipment collection tube. The U-shaped pipe 18 can prevent oil from being discharged to the ground, reduce the difficulty of cleaning for the operator, and maintain hygiene.
Claims
1. A control device for preventing hydrogen leakage from a generator, characterized in that: The device includes an oil tank (1) and a level cylinder (4) located on one side of the oil tank (1). A transmitter (7) is installed on the upper end of the level cylinder (4) via a second flange (6). A sliding rod (10) is installed on the lower end of the transmitter (7). A high-position contact switch (11) and a low-position contact switch (12) are fixedly installed on the outer wall of the sliding rod (10) from top to bottom. A float (13) is slidably connected to the outer wall of the sliding rod (10) between the high-position contact switch (11) and the low-position contact switch (12). A secondary display instrument (8) is installed on the upper end of the transmitter (7). A signal transmitter (9) is installed on the upper end of the secondary display instrument (8).
2. The control device for preventing hydrogen leakage from a generator according to claim 1, characterized in that, Two sets of connecting pipes (3) are fixedly installed on one side of the oil tank (1) through the first flange (2), and the two sets of connecting pipes (3) are fixedly installed on the outer wall of the liquid level cylinder (4).
3. The control device for preventing hydrogen leakage from a generator according to claim 2, characterized in that, Valves (5) are rotatably installed in the inner walls of the two sets of connecting pipes (3), and the two sets of connecting pipes (3) are arranged in an up-down position.
4. The control device for preventing hydrogen leakage from a generator according to claim 1, characterized in that, A filler neck (16) is fixedly installed on the outer wall above the oil tank (1).
5. The control device for preventing hydrogen leakage from a generator according to claim 1, characterized in that, An exhaust port (15) is fixedly installed on the outer wall above the oil tank (1).
6. The control device for preventing hydrogen leakage from a generator according to claim 1, characterized in that, An oil return port (14) is fixedly installed on the outer wall above the oil tank (1).
7. The control device for preventing hydrogen leakage from a generator according to claim 1, characterized in that, Multiple sets of support legs (19) are fixedly installed on the outer wall below the oil tank (1).
8. The control device for preventing hydrogen leakage from a generator according to claim 1, characterized in that, A drain outlet (17) is fixedly installed on the outer wall below the oil tank (1), and a U-shaped pipe (18) is installed at the lower end of the drain outlet (17).