Hydrogen leakage alarm device for steam turbine generator

Abstract

The utility model discloses a hydrogen leakage alarm device for a steam turbine generator, which relates to the technical field of alarm devices and comprises a generator body, a hydrogen cooler is mounted in the generator body, a detection box is sleeved on the surface of the hydrogen cooler and fixedly connected to the surface of the generator body, and the hydrogen cooler is connected with the detection box. A detector is fixedly connected to the inner wall of the detection box, an alarm is fixedly connected to the surface of the detection box, a sealing plate is slidably connected to the inner wall of the detection box, a connecting plate is fixedly connected to the side, away from the generator body, of the sealing plate, and a rotating screw is inserted into the inner wall of the connecting plate in a threaded mode. And a control motor is fixedly connected to one side, close to the rotating screw rod, of the detection box. According to the hydrogen leakage alarm device for the steam turbine generator, the problem that in the prior art, after hydrogen leakage is collected by a hydrogen leakage alarm device, hydrogen is often difficult to take out and reuse, and the hydrogen leakage treatment efficiency is low is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of alarm devices, in particular to a hydrogen leakage alarm device for a steam turbine generator. Background Art

[0002] A steam turbine generator usually refers to a generator driven by a steam turbine. Its working principle is that the superheated steam generated by the boiler enters the steam turbine and expands, thereby controlling the blades to rotate and drive the generator to generate electricity. When using a steam turbine generator, hydrogen is usually required to cool the turbine. If the hydrogen in the steam turbine leaks, it often poses a safety hazard. Therefore, it is necessary to monitor the hydrogen leakage of the steam turbine generator.

[0003] Prior art includes a utility model with a publication number of CN213239350U, which discloses a hydrogen leakage alarm device for a steam turbine generator, including a base, a steam turbine generator body is mounted on the upper side of the base, and an output shaft is provided at one end of the steam turbine generator body; a detection box is mounted on one side of the steam turbine generator body, a hydrogen alarm is mounted on the upper side of the detection box, and a gas guide box is also mounted on one side of the steam turbine generator body, and the gas guide box is located inside the detection box. The utility model can slow down the flow rate of gas in the processing box by installing a baffle in the processing box, thereby improving the hydrogen storage effect of the dehydrogenation box, and can store the unprocessed hydrogen in the dehydrogenation box by setting a hydrogen storage metal in the hydrogen absorption box, so as to facilitate the recycling of hydrogen. The device can achieve a better hydrogen treatment effect through double dehydrogenation of the dehydrogenation box and the hydrogen storage metal, thereby reducing the safety hazards of the device.

[0004] The above-mentioned and existing related technologies often have the following defects: during the use of the steam turbine generator, it is often necessary to use a hydrogen cooler to cool the steam turbine generator to ensure the normal operation of the steam turbine generator. During the operation of the hydrogen cooler, when hydrogen leakage occurs, it is often easy to cause safety hazards. Therefore, it is necessary to use a hydrogen leakage alarm device to monitor the leakage of hydrogen. In the prior art, after the hydrogen leakage alarm device collects hydrogen when hydrogen leaks, it is often difficult to take out the hydrogen for reuse, which makes the efficiency of handling hydrogen leakage low.

[0005] To this end, we propose a hydrogen leakage alarm device for a steam turbine generator. Utility Model Content

[0006] The utility model aims to provide a hydrogen leakage alarm device for a steam turbine generator to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydrogen leakage alarm device for a steam turbine generator, comprising a generator body, a hydrogen cooler is installed inside the generator body, a detection box is sleeved on the surface of the hydrogen cooler, the detection box is fixedly connected to the surface of the generator body, a detector is fixedly connected to the inner wall of the detection box, an alarm is fixedly connected to the surface of the detection box, a sealing plate is slidably connected to the inner wall of the detection box, a connecting plate is fixedly connected to the side of the sealing plate away from the generator body, a rotating screw is threadedly inserted into the inner wall of the connecting plate, a control motor is fixedly connected to the side of the detection box close to the rotating screw, and the output end of the control motor is fixedly connected to the rotating screw.

[0008] The effect achieved by the above components is: by setting a control motor, the rotating screw can be controlled to rotate, thereby controlling the connecting plate to drive the sealing plate to move, so that the detection box can be opened to collect the leaked hydrogen.

[0009] Preferably, a sealing box is fixedly connected to one side of the detection box close to the rotating screw, the sealing box is sleeved on the surface of the rotating screw, and a fixing plate is fixedly connected to one side of the detection box close to the sealing box, and the fixing plate is rotatably connected to the rotating screw.

[0010] The effect achieved by the above components is: by setting the fixing plate, the stability of the rotating screw can be improved during rotation, and the rotation of the rotating screw will not be affected.

[0011] Preferably, a side of the sealing box is connected to an exhaust pipe, the other end of the exhaust pipe is connected to an exhaust fan, and the exhaust fan is fixedly connected to a side of the detection box close to the sealing box.

[0012] The effects achieved by the above components are: by arranging the exhaust fan and the exhaust pipe, the hydrogen in the sealed box can be extracted, while ensuring the collection efficiency of the hydrogen.

[0013] Preferably, a side of the exhaust fan away from the exhaust pipe is connected to an air intake pipe, and the other end of the air intake pipe is connected to an air collecting box.

[0014] The effect achieved by the above components is that the hydrogen extracted by the exhaust fan can be passed into the gas collecting box through the air inlet pipe, thereby realizing the collection of hydrogen.

[0015] Preferably, a sealing rubber ring is glued to the surface of the air inlet pipe, an adjusting screw is threadedly inserted into the inner wall of the air collecting box, and a rectangular plate is rotatably connected to one end of the adjusting screw away from the exhaust fan.

[0016] The effects achieved by the above components are: by setting the sealing rubber ring, the sealing of the connection between the intake pipe and the air collecting box can be guaranteed as much as possible, and by setting the adjusting screw, the movement of the rectangular plate can be controlled.

[0017] Preferably, a sealing ring is glued to the side of the rectangular plate close to the air intake pipe, and two sliding grooves are opened on the side of the detection box close to the air collecting box. The surfaces of the sliding grooves on the two detection boxes are slidably connected with sliders, and the side of the slider away from the generator body is fixedly connected with a mounting plate.

[0018] The effects achieved by the above components are: by moving the rectangular plate, the sealing ring can move closer to or away from the intake pipe, so that the air collecting box can be closed when the air collecting box and the intake pipe are separated, and by setting the slider, the mounting plate can be connected to the detection box, and by setting the mounting plate, the air collecting box can be installed.

[0019] Preferably, the detection box is fixedly connected to a curved plate on one side close to the mounting plate, a movable screw is threadedly inserted into the inner wall of the curved plate, one end of the movable screw is fixedly connected to the mounting plate, and a limiting ring is fixedly connected to one side of the mounting plate close to the air collecting box.

[0020] The effects achieved by the above components are: by setting the arc plate, the movable screw can be installed, by setting the movable screw, the mounting plate can be moved, and by setting the limit ring, the position of the air collecting box can be restricted.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] 1. The utility model, by providing a control motor, a rotating screw, a connecting plate and a sealing plate, can open the detection box when hydrogen leaks, so as to facilitate the collection of the leaked hydrogen. By providing an exhaust fan, an exhaust pipe, an air intake pipe and an air collecting box, a more efficient collection of hydrogen can be achieved. By providing a sealing rubber ring, the sealing performance of the connection between the air intake pipe and the air collecting box can be guaranteed as much as possible. By providing a mounting plate and a limit ring, the air collecting box can be easily installed and disassembled, thereby facilitating the recycling of hydrogen. By providing a rectangular plate and a sealing ring, the air collecting box can be sealed when the air collecting box is disassembled, so as to ensure that the hydrogen can be recycled as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0025] Figure 3 For this utility model Figure 1 A magnified image of point A;

[0026] Figure 4 For this utility model Figure 2 Schematic diagram of the local structure;

[0027] Figure 5 For this utility model Figure 2 Enlarged view of point B.

[0028] In the figure: 1-generator body; 2-hydrogen cooler; 3-detection box; 4-alarm; 5-detector; 6-sealing box; 7-control motor; 8-rotating screw; 9-exhaust pipe; 10-exhaust fan; 11-intake pipe; 12-sealing rubber ring; 13-air collecting box; 14-adjusting screw; 15-mounting plate; 16-limiting ring; 17-arc plate; 18-moving screw; 19-slider; 20-rectangular plate; 21-sealing ring; 22-connecting plate; 23-sealing plate; 24-fixed plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-5 The utility model provides a technical solution: a hydrogen leakage alarm device for a steam turbine generator, comprising a generator body 1, a hydrogen cooler 2 is installed inside the generator body 1, a detection box 3 is sleeved on the surface of the hydrogen cooler 2, the detection box 3 is fixedly connected to the surface of the generator body 1, a detector 5 is fixedly connected to the inner wall of the detection box 3, an alarm 4 is fixedly connected to the surface of the detection box 3, a sealing plate 23 is slidably connected to the inner wall of the detection box 3, a connecting plate 22 is fixedly connected to the side of the sealing plate 23 away from the generator body 1, a rotating screw 8 is threadedly inserted into the inner wall of the connecting plate 22, a control motor 7 is fixedly connected to the side of the detection box 3 close to the rotating screw 8, and the output end of the control motor 7 is fixedly connected to the rotating screw 8. By setting the control motor 7, the rotating screw 8 can be controlled to rotate, thereby controlling the connecting plate 22 to drive the sealing plate 23 to move, so that the detection box 3 can be opened to collect the leaked hydrogen.

[0031] The following is a detailed description of its overall specific settings and functions.

[0032] like Figure 1-Figure 5As shown, a sealing box 6 is fixedly connected to one side of the detection box 3 close to the rotating screw 8, and the sealing box 6 is sleeved on the surface of the rotating screw 8. A fixing plate 24 is fixedly connected to one side of the detection box 3 close to the sealing box 6, and the fixing plate 24 is rotatably connected to the rotating screw 8. By setting the fixing plate 24, the stability of the rotating screw 8 during rotation can be improved, and the rotation of the rotating screw 8 will not be affected. The side of the sealing box 6 is connected to an exhaust pipe 9, and the other end of the exhaust pipe 9 is connected to an exhaust fan 10, and the exhaust fan 10 is fixedly connected to one side of the detection box 3 close to the sealing box 6. By setting the exhaust fan 10 and the exhaust pipe 9, the hydrogen in the sealing box 6 can be extracted, and the collection efficiency of the hydrogen is guaranteed. The side of the exhaust fan 10 away from the exhaust pipe 9 is connected to the air inlet pipe 11, and the other end of the air inlet pipe 11 is connected to the air collecting box 13. Through the air inlet pipe 11, the hydrogen extracted by the exhaust fan 10 can be passed into the air collecting box 13, thereby realizing the collection of hydrogen.

[0033] A sealing rubber ring 12 is glued to the surface of the air intake pipe 11, and an adjusting screw 14 is threadedly inserted into the inner wall of the air collecting box 13. The end of the adjusting screw 14 away from the exhaust fan 10 is rotatably connected to a rectangular plate 20. By providing the sealing rubber ring 12, the sealing of the connection between the air intake pipe 11 and the air collecting box 13 can be ensured as much as possible, and the movement of the rectangular plate 20 can be controlled by providing the adjusting screw 14. A sealing ring 21 is glued to the side of the rectangular plate 20 close to the air intake pipe 11, and two slide grooves are provided on the side of the detection box 3 close to the air collecting box 13. The surfaces of the slide grooves on the two detection boxes 3 are slidably connected to sliders 19, and the side of the slider 19 away from the generator body 1 is fixedly connected to the mounting plate 15. By moving the rectangular plate 20, the sealing ring 21 can be moved closer to or away from the air intake pipe 11, so that the air collecting box 13 can be closed when the air collecting box 13 and the air intake pipe 11 are separated. By setting the slider 19, the mounting plate 15 can be connected to the detection box 3. By setting the mounting plate 15, the air collecting box 13 can be installed. An arc plate 17 is fixedly connected to the side of the detection box 3 close to the mounting plate 15. The inner wall of the arc plate 17 is threadedly inserted with a moving screw 18. One end of the moving screw 18 is fixedly connected to the mounting plate 15. The side of the mounting plate 15 close to the air collecting box 13 is fixedly connected to the limiting ring 16. By setting the arc plate 17, the moving screw 18 can be installed. By setting the moving screw 18, the mounting plate 15 can be moved. By setting the limiting ring 16, the position of the air collecting box 13 can be limited.

[0034] Working principle: Before using the hydrogen leakage alarm device, first install the detector 5 and the alarm 4 on the detection box 3, and then install the detection box 3 on the surface of the hydrogen cooler 2 on the generator body 1. When hydrogen leaks, hydrogen enters the detection box 3. At this time, the detector 5 sends a signal, the alarm 4 sounds an alarm, and the exhaust fan 10 starts. The control motor 7 controls the rotating screw 8 to rotate on the inner wall of the sealing box 6 and the surface of the fixed plate 24, so that the connecting plate 22 drives the sealing plate 23 to slide on the inner wall of the detection box 3, so that the sealing box 6 and the detection box 3 are connected. Under the action of the exhaust fan 10, the hydrogen in the sealing box 6 enters the air collecting box 13 through the exhaust pipe 9 and the air inlet pipe 11. When the staff repairs the hydrogen cooler 2, first turn the adjusting screw 14 to drive the torque The arc plate 20 and the sealing ring 21 are moved closer to the air inlet pipe 11 to seal the air collecting box 13, then the exhaust fan 10 is stopped, the detection box 3 is disassembled, and the hydrogen cooler 2 is repaired. When the hydrogen cooler 2 is repaired, the detection box 3 is installed again, the control motor 7 is started to drive the sealing plate 23 to seal the detection box 3, and the moving screw 18 is rotated to make it rotate on the inner wall of the arc plate 17, thereby driving the mounting plate 15 and the air collecting box 13 to move away from the air inlet pipe 11, and the air collecting box 13 is disassembled and connected to the hydrogen recovery equipment, and the adjusting screw is rotated. 14, control the rectangular plate 20 and the sealing ring 21 to move, release the seal on the gas collecting box 13, after the hydrogen in the gas collecting box 13 is recovered, move the gas collecting box 13 close to the limit ring 16, rotate the moving screw 18, control the mounting plate 15 to drive the slider 19 to slide on the surface of the slide groove on the detection box 3, so that the gas collecting box 13 moves close to the intake pipe 11, and completes the installation of the gas collecting box 13. By setting the control motor 7, rotating the screw 8, the connecting plate 22 and the sealing plate 23, the detection box 3 can be opened when hydrogen leaks, so as to facilitate the collection of the leaked hydrogen. By providing the exhaust fan 10, the exhaust pipe 9, the intake pipe 11 and the gas collecting box 13, more efficient collection of hydrogen can be achieved. By providing the sealing rubber ring 12, the sealing performance of the connection between the intake pipe 11 and the gas collecting box 13 can be guaranteed as much as possible. By providing the mounting plate 15 and the limiting ring 16, the gas collecting box 13 can be easily installed and disassembled, thereby facilitating the recycling of hydrogen. By providing the rectangular plate 20 and the sealing ring 21, the gas collecting box 13 can be sealed when disassembling the gas collecting box 13, thereby ensuring that the hydrogen can be recycled as much as possible.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydrogen leakage alarm device for a steam turbine generator, comprising a generator body (1), characterized in that: A hydrogen cooler (2) is installed inside the generator body (1), a detection box (3) is sleeved on the surface of the hydrogen cooler (2), the detection box (3) is fixedly connected to the surface of the generator body (1), a detector (5) is fixedly connected to the inner wall of the detection box (3), an alarm (4) is fixedly connected to the surface of the detection box (3), a sealing plate (23) is slidably connected to the inner wall of the detection box (3), a connecting plate (22) is fixedly connected to the side of the sealing plate (23) away from the generator body (1), a rotating screw (8) is threadedly inserted into the inner wall of the connecting plate (22), a control motor (7) is fixedly connected to the side of the detection box (3) close to the rotating screw (8), and an output end of the control motor (7) is fixedly connected to the rotating screw (8).

2. A hydrogen leakage alarm device for a steam turbine generator according to claim 1, characterized in that: A sealing box (6) is fixedly connected to one side of the detection box (3) close to the rotating screw (8); the sealing box (6) is sleeved on the surface of the rotating screw (8); a fixing plate (24) is fixedly connected to one side of the detection box (3) close to the sealing box (6); the fixing plate (24) is rotatably connected to the rotating screw (8).

3. A hydrogen leakage alarm device for a steam turbine generator according to claim 2, characterized in that: The side of the sealing box (6) is connected to an exhaust pipe (9), and the other end of the exhaust pipe (9) is connected to an exhaust fan (10). The exhaust fan (10) is fixedly connected to a side of the detection box (3) close to the sealing box (6).

4. A hydrogen leakage alarm device for a steam turbine generator according to claim 3, characterized in that: The side of the exhaust fan (10) away from the exhaust pipe (9) is connected to an air intake pipe (11), and the other end of the air intake pipe (11) is connected to an air collecting box (13).

5. A hydrogen leakage alarm device for a steam turbine generator according to claim 4, characterized in that: A sealing rubber ring (12) is glued to the surface of the air inlet pipe (11), and an adjusting screw (14) is threadedly inserted into the inner wall of the air collecting box (13). The end of the adjusting screw (14) away from the exhaust fan (10) is rotatably connected to a rectangular plate (20).

6. A hydrogen leakage alarm device for a steam turbine generator according to claim 5, characterized in that: A sealing ring (21) is glued to one side of the rectangular plate (20) close to the air intake pipe (11), and two slide grooves are provided on one side of the detection box (3) close to the air collecting box (13). The surfaces of the slide grooves on the two detection boxes (3) are slidably connected to sliders (19), and the side of the slider (19) away from the generator body (1) is fixedly connected to a mounting plate (15).

7. A hydrogen leakage alarm device for a steam turbine generator according to claim 6, characterized in that: A curved plate (17) is fixedly connected to one side of the detection box (3) close to the mounting plate (15); a movable screw (18) is threadedly inserted into the inner wall of the curved plate (17); one end of the movable screw (18) is fixedly connected to the mounting plate (15); and a limiting ring (16) is fixedly connected to one side of the mounting plate (15) close to the air collecting box (13).

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