A generator hydrogen leakage position detection device

Abstract

The present invention provides a generator hydrogen leakage position detection device, which relates to the technical field of generator hydrogen leakage detection, including a transmitter machine, a receiver machine and a connection adjustment component, wherein a light source, a condenser, a crack plate and a spherical reflector 1 are arranged on the transmitter machine, and a spherical reflector 2, a blade, a camera and a leak detector are arranged on the receiver machine, and the spherical reflector 1 and the spherical reflector 2 are arranged relative to each other, and a detection area is formed between the spherical reflector 1 and the spherical reflector 2. The present invention arranges the device on a part of the surface of the generator through which hydrogen flows by utilizing the principle of reflective schlieren imaging, and the light source is focused by the condenser and then evenly reflected by the crack of the crack plate to the spherical reflector 1 before passing through the detection area, and when hydrogen leakage occurs in the detection area, the pressure disturbance of the leaked hydrogen and the difference in density with the air will cause the part of the light to be refracted, and the light after reflection will block half of the light through the blade, so that the camera imaging contrast is stronger and the detection efficiency is higher.

Description

Technical Field

[0001] The invention belongs to the technical field of generator hydrogen leakage detection, and in particular relates to a generator hydrogen leakage position detection device. Background Art

[0002] Generators are one of the three major equipment in power plants. Since both the stator and rotor coils of the generator have resistance, it is inevitable that they will generate heat during operation. Since hydrogen is clean, low-carbon and has high heat exchange efficiency, most generators are currently cooled by water-hydrogen-hydrogen cooling, that is, the stator winding is cooled by water, the rotor winding is cooled by hydrogen, and the stator core and other components are cooled by hydrogen surface.

[0003] Although sealing oil is used to seal the hydrogen cooling system, hydrogen leakage is inevitable due to the dynamic and static clearance and the fluctuation of sealing oil pressure, which will not only cause waste of working fluid, but also pose a great threat to production safety.

[0004] The current method of leak detection is to first use a hydrogen leak meter to measure to determine the approximate leakage range, and then use foam water to test the approximate leakage range to confirm the specific leakage point. This method is not only inefficient and time-consuming, but also easy to miss. Summary of the invention

[0005] The present invention provides a generator hydrogen leakage position detection device to solve at least one of the above-mentioned technical problems.

[0006] In order to solve the above technical problems, the present invention discloses a generator hydrogen leakage position detection device, including a transmitting end machine, a receiving end machine and a connection adjustment component. The transmitting end machine and the receiving end machine are connected through the connection adjustment component. The transmitting end machine is provided with a light source, a condenser, a crack plate and a spherical reflector 1. The receiving end machine is provided with a spherical reflector 2, a blade, a camera and a leak detector. The spherical reflector 1 and the spherical reflector 2 are arranged opposite to each other, and a detection area is formed between the spherical reflector 1 and the spherical reflector 2.

[0007] Preferably, the transmitting machine and the receiving machine both include a machine body, a height adjustment component and a machine base; the light source, the condenser, the crack plate and the spherical reflector 1 are installed on the machine body corresponding to the transmitting machine; the spherical reflector 2, the blade, the camera and the leak detector are installed on the machine body corresponding to the receiving machine; the machine body and the machine base are connected via the height adjustment component; the two machine bases are connected via the connection adjustment component; and a brake-type universal wheel assembly is installed at the bottom of the machine base.

[0008] Preferably, the height adjustment assembly includes a height adjustment motor, which is fixedly connected in a nut slot of the machine base, and two output ends of the height adjustment motor are fixedly connected with two adjusting screws with opposite rotation directions, and the two adjusting screws are threadedly connected with adjusting nuts, and the two adjusting nuts are hingedly connected with connecting rod one and connecting rod two, respectively, and connecting rod one and connecting rod two are cross-arranged, and one end of connecting rod one and connecting rod two away from the two adjusting nuts is hingedly connected to the bottom of the machine body.

[0009] Preferably, the connection adjustment assembly includes two groups of sliding rods and a connecting plate. The two groups of sliding rods are respectively slidably connected in the sliding rod receiving grooves of the two machine bases. A number of positioning through holes are evenly arranged on the sliding rods. The machine base is slidably connected up and down with positioning bolts. The positioning bolts are used to cooperate with the positioning through holes. The ends of the two sliding rods away from the machine base are installed on the connecting plate, and a telescopic positioning suction cup is installed at the bottom of the connecting plate.

[0010] Preferably, the machine body includes a machine shell, a plate receiving groove is opened on the side of the machine shell, a position adjustment slide rod is fixedly connected in the plate receiving groove, a position adjustment sleeve is slidably connected to the position adjustment slide rod, a plate one is rotatably connected to the position adjustment sleeve, a plate two is sleeved on the plate one, the plate two corresponding to the transmitting end machine is used for installing the light source, the condenser and the crack plate, and the plate two corresponding to the receiving end machine is used for installing the blade, the camera and the leak detector.

[0011] Preferably, a storage opening is opened on the machine shell, and two symmetrically arranged sealing plates are slidably connected in the storage opening. A sealing plate control component and a spherical reflector removal component are provided in the machine shell. The sealing plate control component is used to control the opening and closing of the sealing plate. Spherical reflector 1 and spherical reflector 2 are respectively installed on the two groups of spherical reflector removal components.

[0012] Preferably, the sealing plate control assembly includes two symmetrically arranged electric control screws, which are rotatably connected to the control nut slide groove of the machine shell, and the electric control screw is threaded with a control nut, and the control nut is fixedly connected with a rocker arm, and the end of the rocker arm away from the control nut is hingedly connected to the push block, and the push block is slidably connected to the push block slide rod, and the push block slide rod is installed on the connecting block, and the two connecting blocks are respectively fixedly connected to the backs of the two sealing plates, and a sliding storage groove is opened below the storage opening on the front and rear inner walls of the machine shell.

[0013] Preferably, the spherical reflector removal assembly includes a mounting base, on which a rotating shaft 1 is rotatably connected, on which a support rod and a gear 1 are fixedly connected, one end of the support rod away from the rotating shaft 1 is sleeved on a rotating shaft 2, on which the rotating shaft 2 is rotatably connected to a support, spherical reflector 1 and spherical reflector 2 are fixedly connected to the support, on which a gear 3 and a winding wheel 2 are fixedly connected, on which a gear 2 and a winding wheel 1 are coaxially rotatably connected to the mounting base, on which a gear 4 is rotatably connected, gear 1 and gear 2 are meshed with each other, winding wheel 1 and winding wheel 2 are connected by a connecting wire, the connecting wire passes through the supporting rod, and on both sides of gear 4 are meshed with gear 3 and the support respectively.

[0014] Preferably, it also includes a reflector cleaning assembly, which includes a cleaning roller mounting frame, the cleaning roller mounting frame is slidably connected to the bottom of the inner wall of the machine shell, a plurality of cleaning rollers are rotatably connected to the cleaning roller mounting frame, a driving winding wheel is rotatably connected inside the machine shell, a driving winding is wound on the driving winding wheel, one end of the driving winding away from the driving winding wheel is fixedly connected to one end of the cleaning roller mounting frame, elastic members one and two are fixedly connected to the left and right ends of the cleaning roller mounting frame, an impurity scraping screen is fixedly connected below the cleaning roller mounting frame in the machine shell, an impurity collecting groove is provided below the impurity scraping screen, and a plug body is installed at the bottom of the machine shell.

[0015] Preferably, an evaluation system is also included, the evaluation system is electrically connected to the leak detector and the camera, and the evaluation system calculates the hydrogen leakage severity evaluation coefficient of the detection point based on the leak detector and the camera:

[0016] ;

[0017] in, is the hydrogen leakage severity assessment coefficient of the point to be tested, is the airflow chaos coefficient in the camera image, is the detection error coefficient of the leak detector, is the detection value of the leak detector in the i-th detection cycle, t is the total detection time of the generator hydrogen leakage position detection equipment at the point to be detected, and T is the detection cycle of the leak detector.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention utilizes the principle of reflective schlieren imaging and arranges the device on the surface of a part of the generator through which hydrogen flows. The light source is focused by a condenser and then evenly reflected by the cracks of the crack plate to the spherical reflector before passing through the detection area. When hydrogen leakage occurs in the detection area, the pressure disturbance of the leaked hydrogen and the difference in density with the air will cause the part of the light to be refracted. After the reflection, the light passes through the blade to block half of the light, so that the camera imaging contrast is stronger and the detection efficiency is higher.

[0020] The reflective schlieren method is used to achieve imaging of a larger test area, reducing the difficulty and cost of manufacturing large-aperture lenses. The flow field information obtained by the reflective schlieren method is the cumulative effect of light deflection caused by the light beam along the path of the test area. It records the changes in light and dark of the flow field image and improves the sensitivity of light deflection by cutting the image of the point light source with a knife edge. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 A top view of a generator hydrogen leakage position detection device proposed by the present invention;

[0023] Figure 2 It is a schematic diagram of the working principle of the present invention;

[0024] Figure 3 It is a front view of the present invention;

[0025] Figure 4 For the present invention Figure 3 A local enlarged view of point A;

[0026] Figure 5 It is a top view of the main body of the machine of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the plate body 1 and the plate body 2 of the present invention;

[0028] Figure 7 It is a schematic diagram of the internal structure of the machine body of the present invention;

[0029] Figure 8 For the present invention Figure 7 A partial enlarged view of point B;

[0030] Fig. 9 For the present invention Figure 7 A partial enlarged view of point C.

[0031] In the figure: 1. Transmitter; 100. Light source; 101. Condenser; 102. Crack plate; 103. Spherical reflector 1; 2. Receiver; 200. Spherical reflector 2; 201. Blade; 202. Camera; 203. Leak detector; 204. Detection area; 3. Connection adjustment component; 300. Slide bar; 301. Slide bar storage groove; 302. Positioning through hole; 303. Positioning bolt; 304. Connecting plate; 305, telescopic positioning suction cup; 4, machine body; 400, machine shell; 4000, plate storage slot; 4001, position adjustment slide rod; 4002, position adjustment sleeve; 4003, plate one; 4004, plate two; 401, storage port; 402, sealing plate; 5, height adjustment assembly; 500, height adjustment motor; 501, nut slide slot; 502, adjustment screw; 503, Adjusting nut; 504, connecting rod 1; 505, connecting rod 2; 6, machine base; 7, electric control screw; 700, nut slide; 701, control nut; 702, rocker arm; 703, push block; 704, push block slide rod; 705, connecting block; 706, sliding storage groove; 8, mounting base; 800, rotating shaft 1; 8000, supporting rod; 8001, gear 1; 8002, rotating shaft 2; 8003 , support; 8004, gear three; 8005, winding wheel two; 8006, gear two; 8007, winding wheel one; 8008, gear four; 8009, connecting winding; 9, cleaning roller mounting frame; 900, cleaning roller; 901, driving winding wheel; 902, driving winding; 903, elastic part one; 904, elastic part two; 905, impurity scraping screen; 906, impurity collecting tank; 907, plug body. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0033] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] The present invention provides the following embodiments

[0035] Example 1

[0036] The embodiment of the present invention provides a generator hydrogen leakage position detection device, such as Figure 1-9 As shown, the device comprises a transmitting end machine 1, a receiving end machine 2 and a connection adjustment component 3. The transmitting end machine 1 and the receiving end machine 2 are connected via the connection adjustment component 3. The transmitting end machine 1 is provided with a light source 100, a condenser 101, a crack plate 102 and a spherical reflector 1 103. The receiving end machine 2 is provided with a spherical reflector 200, a blade 201, a camera 202 and a leak detector 203. The spherical reflector 1 103 and the spherical reflector 2 200 are arranged opposite to each other, and a detection area 204 is formed between the spherical reflector 1 103 and the spherical reflector 2 200.

[0037] The working principle and beneficial effects of the above technical solution are as follows: during detection, the transmitter machine 1 and the receiver machine 2 are connected together using the connection adjustment component 3 to assemble a generator hydrogen leakage position detection device, and then the light source 100, the condenser 101, the crack plate 102 and the spherical reflector 103 are connected as shown in FIG. Figure 1 As shown, the spherical reflector 200, the blade 201, the camera 202 and the leak detector 203 are arranged at the corresponding position of the transmitting end machine 1. Figure 1 As shown, it is arranged at the corresponding position of the receiving end machine 2, and the position of each component is debugged. After the debugging is completed, a detection area 204 is formed between the spherical reflector 103 and the spherical reflector 200. During use, the staff pulls the generator hydrogen leakage position detection device to the position to be detected;

[0038] When the leak detector 203 sounds an alarm, it indicates that hydrogen exists in the area, and then the specific leakage position is determined by the remaining components of the generator hydrogen leakage position detection device. Specifically, the light beam emitted by the light source 100 can improve its illumination in the detection area 204 after passing through the condenser 101. The light beam passes through the slit of the crack plate 102 and evenly irradiates the surface of the spherical reflector 1 103. After reflection, it passes through the detection area 204 in parallel and irradiates the spherical reflector 2 200. After passing through the spherical reflector 2 200 and the blade 201, it is reflected to the camera 202, so that the airflow in the detection area 204 can be seen from the camera 202. When there is a hydrogen leak in the detection area 204, the flow direction of the leaked hydrogen and the position of the leak point can be clearly seen in the camera.

[0039] The present invention utilizes the principle of reflective schlieren imaging and arranges the device on the surface of the generator through which hydrogen flows. The light source 100 is focused by the condenser 101 and then uniformly reflected by the cracks of the crack plate 102 to the spherical reflector 103 and then passes through the detection area 204. Figure 1As shown, when hydrogen leaks in the detection area 204, the pressure disturbance of the leaked hydrogen and the difference in density with the air will cause this part of the light to be refracted. After reflection, the light passes through the blade 201 to block half of the light, making the imaging contrast of the camera 202 stronger and the detection efficiency higher.

[0040] The reflective schlieren method is used to achieve imaging of a larger test area, reducing the difficulty and cost of manufacturing large-aperture lenses. The flow field information obtained by the reflective schlieren method is the cumulative effect of light deflection caused by the light beam along the path of the test area. It records the changes in light and dark of the flow field image and improves the sensitivity of light deflection by cutting the image of the point light source with a knife edge.

[0041] Example 2

[0042] On the basis of Example 1, the transmitter machine 1 and the receiver machine 2 both include a machine body 4, a height adjustment component 5 and a machine base 6, a light source 100, a condenser 101, a crack plate 102 and a spherical reflector 1 103 are installed on the machine body 4 corresponding to the transmitter machine 1, a spherical reflector 200, a blade 201, a camera 202 and a leak detector 203 are installed on the machine body 4 corresponding to the receiver machine 2, the machine body 4 and the machine base 6 are connected by the height adjustment component 5, the two machine bases 6 are connected by the connection adjustment component 3, and a brake-type universal wheel component 600 is installed at the bottom of the machine base 6;

[0043] The height adjustment assembly 5 includes a height adjustment motor 500, which is fixedly connected to a nut slide groove 501 of a machine base 6. Two output ends of the height adjustment motor 500 are fixedly connected with two adjusting screws 502 with opposite rotation directions. Adjusting nuts 503 are threadedly connected to the two adjusting screws 502. Connecting rod 1 504 and connecting rod 2 505 are hingedly connected to the two adjusting nuts 503, respectively. Connecting rod 1 504 and connecting rod 2 505 are cross-arranged, and one end of connecting rod 1 504 and connecting rod 2 505 away from the two adjusting nuts 503 is hingedly connected to the bottom of the machine body 4.

[0044] The working principle and beneficial effects of the above technical solution are as follows: when working, the transmitter machine 1 and the receiver machine 2 are connected by connecting the adjustment component 3, and then the two machine bodies 4 are adjusted to a suitable height by the height adjustment component 5, and then the light source 100, the condenser 101, the crack plate 102 and the spherical reflector 1 103 are installed on the machine body 4 corresponding to the transmitter machine 1, and the spherical reflector 200, the blade 201, the camera 202 and the leak detector 203 are installed on the machine body 4 corresponding to the receiver machine 2;

[0045] When the height adjustment component 5 is adjusted in height, the height adjustment motor 500 is started to drive the two adjusting screws 502 to rotate. The rotation of the adjusting screws 502 drives the adjusting nuts 503 thereon to move under the action of the threads. The movement of the adjusting nuts 503 drives the connecting rod 1 504 and the connecting rod 2 505 to move. The movement of the connecting rod 1 504 and the connecting rod 2 505 drives the machine body 4 thereon to move up and down, thereby adjusting the height of the machine body 4 to an appropriate height.

[0046] Example 3

[0047] On the basis of Example 2, the connection adjustment component 3 includes two groups of sliding rods 300 and a connecting plate 304. The two groups of sliding rods 300 are respectively slidably connected in the sliding rod receiving grooves 301 of the two machine bases 6. A number of positioning through holes 302 are evenly arranged on the sliding rods 300. The machine base 6 is slidably connected up and down with positioning bolts 303. The positioning bolts 303 are used to cooperate with the positioning through holes 302. The ends of the two sliding rods 300 away from the machine base 6 are installed on the connecting plate 304, and a telescopic positioning suction cup 305 is installed at the bottom of the connecting plate 304.

[0048] The working principle and beneficial effects of the above technical solution are as follows: when the connection adjustment component 3 is installed, the slide rod 300 is pulled out from the slide rod storage groove 301 to an appropriate length, and the positioning bolt 303 is used to cooperate with the positioning through hole 302 to achieve the positioning of the slide rod 300. Then, the end of the slide rod 300 away from the machine base 6 is bolted to the connecting plate 304, and then the telescopic positioning suction cup 305 is extended, and the brake-type universal wheel assembly 600 is braked to achieve the overall positioning of the generator hydrogen leakage position detection equipment.

[0049] Example 4

[0050] On the basis of Example 2, the machine body 4 includes a machine shell 400, a plate storage groove 4000 is opened on the side of the machine shell 400, a position adjustment slide rod 4001 is fixedly connected in the plate storage groove 4000, a position adjustment sleeve 4002 is slidably connected to the position adjustment slide rod 4001, a plate one 4003 is rotatably connected to the position adjustment sleeve 4002, a plate two 4004 is sleeved on the plate one 4003, the plate two 4004 corresponding to the transmitting end machine 1 is used to install the light source 100, the focusing lens 101 and the crack plate 102, and the plate two 4004 corresponding to the receiving end machine 2 is used to install the blade 201, the camera 202 and the leak detector 203.

[0051] The working principle and beneficial effects of the above technical solution: when in use, the plate body 2 4004 is slid out along the plate body 1 4003, and the plate body 1 4003 is rotated to a suitable position, and then the light source 100, the condenser 101 and the crack plate 102 are installed on the plate body 2 4004 corresponding to the transmitting end machine 1, and the relative positions between the components are adjusted, and the blade 201, the camera 202 and the leak detector 203 are installed on the plate body 2 4004 corresponding to the receiving end machine 2, and the relative positions between the components are adjusted, and the overall position of the plate body 1 4003 and the plate body 2 4004 can be adjusted by sliding the position adjustment sleeve 4002 along the position adjustment slide rod 4001;

[0052] The design of the plate body 1 4003 and the plate body 2 4004 can not only improve the flexibility of the generator hydrogen leakage position detection device during use, but also effectively reduce the overall volume of the generator hydrogen leakage position detection device.

[0053] Example 5

[0054] On the basis of Example 4, a receiving port 401 is provided on the machine housing 400, and two symmetrically arranged sealing plates 402 are slidably connected in the receiving port 401. A sealing plate control component and a spherical reflector removal component are provided in the machine housing 400. The sealing plate control component is used to control the opening and closing of the sealing plate 402. The spherical reflector 103 and the spherical reflector 200 are respectively installed on the two sets of spherical reflector removal components.

[0055] The sealing plate control assembly includes two symmetrically arranged electric control screws 7, which are rotatably connected to the control nut slide groove 700 of the machine housing 400, and the electric control screw 7 is threadedly connected to the control nut 701, and the control nut 701 is fixedly connected to a rocker arm 702, and the end of the rocker arm 702 away from the control nut 701 is hingedly connected to a push block 703, and the push block 703 is slidably connected to a push block slide rod 704, and the push block slide rod 704 is installed on a connecting block 705. The two connecting blocks 705 are respectively fixedly connected to the backs of the two sealing plates 402, and a sliding storage groove 706 is opened below the storage opening 401 on the front and rear inner walls of the machine housing 400.

[0056] The working principle and beneficial effects of the above technical solution are as follows: when conducting hydrogen leakage detection, the two sealing plates 402 need to be controlled by the sealing plate control assembly to move away from each other to open the outlet of the machine housing 400, and then the spherical reflector 1 103 and the spherical reflector 2 200 are finally moved out of the machine housing 400 by two sets of spherical reflector removal assemblies;

[0057] When the sealing plate control assembly is working, the two electric control screws 7 rotate to drive the control nut 701 to generate a movement trend under the action of the thread. However, since the two sealing plates 402 are located in the receiving opening 401 at this time, the control nut 701 cannot move in the front and rear directions due to the obstruction of the front and rear inner walls of the receiving opening 401, and can only rotate under the action of the electric control screw 7. When the control nut 701 rotates, it drives the rocker arm 702 to swing, and the rocker arm 702 drives the two push blocks 703 to slide toward each other along the push block slide rod 704, and drags the connecting block 705 to move downward. The downward movement of the connecting block 705 drives the two sealing plates 402 downward Move out of the storage opening 401 until it is at the same horizontal plane as the sliding storage groove 706. At this time, the sealing plate 402 is not blocked by the front and rear inner walls of the storage opening 401. The electric control screw 7 rotates to drive the two control nuts 701 to move along the axial direction of the corresponding electric control screw 7, thereby driving the two sealing plates 402 away from each other under the action of the rocker arm 702 and the connecting block 705 until the sealing plates 402 are stored in the corresponding sliding storage groove 706. At this time, the storage opening 401 is in an open state, and the two sets of spherical reflector removal assemblies can finally move the spherical reflector 1 103 and the spherical reflector 2 200 out of the machine housing 400.

[0058] Example 6

[0059] On the basis of Example 4, the spherical reflector removal assembly includes a mounting base 8, on which a rotating shaft 800 is rotatably connected, on which a support rod 8000 and a gear 8001 are fixedly connected, one end of the support rod 8000 away from the rotating shaft 800 is sleeved on the rotating shaft 2 8002, and the rotating shaft 2 8002 is rotatably connected to the support 8003, and the spherical reflector 103 and the spherical reflector 200 are fixedly connected to the support 8003, and the rotating shaft 2 8002 is fixedly connected to the support 8003. It is connected to gear three 8004 and winding wheel two 8005, gear two 8006 and winding wheel one 8007 are coaxially rotatably connected on the mounting base 8, gear four 8008 is rotatably connected on the support 8003, gear one 8001 and gear two 8006 are meshed with each other, winding wheel one 8007 and winding wheel two 8005 are connected by connecting winding 8009, connecting winding 8009 runs through the supporting rod 8000, and gear four 8008 is meshed with gear three 8004 and the support 8003 on both sides.

[0060] The working principle and beneficial effects of the above technical solution are as follows: when the spherical reflector 103 and the spherical reflector 200 are moved out of the machine housing 400, the rotating driving member on the rotating shaft 800 drives the rotating shaft 800 to rotate, and the rotating shaft 800 drives the supporting rod 8000 to gradually move from a horizontal state to a vertical state. During the rotation of the rotating shaft 800, the gear 1 8001 rotates, and the rotation of the gear 1 8001 drives the gear 2 8006 to rotate. Since the gear 2 8006 and the winding wheel 1 8007 are coaxial, the winding wheel 1 8007 also rotates synchronously, and the winding wheel 1 8007 The connecting wire 8009 is rotated and pulled to be recovered. During the recovery process of the connecting wire 8009, the winding wheel 2 8005 is driven to rotate. The rotation of the winding wheel 2 8005 drives the rotating shaft 2 8002 to rotate. The rotation of the rotating shaft 2 8002 drives the gear 3 8004 to rotate. The rotation of the gear 3 8004 drives the gear 4 8008 to rotate. The rotation of the gear 4 8008 drives the support 8003 to rotate. The support 8003 rotates to synchronously adjust the inclination angle of the spherical reflector 1 103 and the spherical reflector 2 200 until the spherical reflector 1 103 and the spherical reflector 2 200 are adjusted to the position as shown in the figure. Figure 3 As shown;

[0061] The spherical reflector removal assembly can realize the automatic storage and automatic removal of the spherical reflector 103 and the spherical reflector 200, which not only increases the convenience of using the generator hydrogen leakage position detection equipment, but also better protects the spherical reflector 103 and the spherical reflector 200 from damage during non-use period.

[0062] Example 7

[0063] On the basis of Example 4, it also includes a reflector cleaning component, which includes a cleaning roller mounting frame 9, which is slidably connected to the bottom of the inner wall of the machine shell 400, and a plurality of cleaning rollers 900 are rotatably connected to the cleaning roller mounting frame 9, and a driving winding wheel 901 is rotatably connected in the machine shell 400, and a driving winding 902 is wound around the driving winding wheel 901, and one end of the driving winding 902 away from the driving winding wheel 901 is fixedly connected to one end of the cleaning roller mounting frame 9, and elastic members 1 903 and 2 904 are fixedly connected at the left and right ends of the cleaning roller mounting frame 9, and an impurity scraping net 905 is fixedly connected below the cleaning roller mounting frame 9 in the machine shell 400, and an impurity collecting groove 906 is provided below the impurity scraping net 905, and a plug body 907 is installed at the bottom of the machine shell 400.

[0064] The working principle and beneficial effects of the above technical solution are as follows: after the spherical reflector 1 103 and the spherical reflector 200 are used up, they can be cleaned by the reflector cleaning assembly, and the cleaning roller 900 can also play a buffering role to prevent the spherical reflector 1 103 and the spherical reflector 200 from being broken due to collision. During cleaning, the driving winding wheel 901 rotates to drive the driving winding 902 to pull the cleaning roller mounting frame 9 to move, so that the cleaning roller mounting frame 9 moves between the driving winding 902 and the elastic member 901. 3 and the elastic member 2 904 reciprocate, thereby making the cleaning roller 900 thereon roll to clean the surfaces of the spherical reflector 1 103 and the spherical reflector 2 200, thereby improving the detection accuracy of the generator hydrogen leakage position detection device. During the rotation of the cleaning roller 900, the impurities attached to the cleaning roller 900 will be scraped off by the impurity scraping net 905 and fall into the impurity collecting tank 906 for collection under the action of gravity. When the impurities are cleaned, the plug 907 can be opened to pour out the impurities.

[0065] Example 8

[0066] On the basis of Example 1, an evaluation system is also included. The evaluation system is electrically connected to the leak detector 203 and the camera 202. The evaluation system calculates the hydrogen leakage severity evaluation coefficient of the detection point based on the leak detector 203 and the camera 202:

[0067] ;

[0068] in, is the hydrogen leakage severity assessment coefficient of the point to be tested, is the airflow turbulence coefficient in the camera 202 image, is the detection error coefficient of the leak detector 203, is the detection value of the leak detector 203 in the i-th detection cycle, t is the total detection time of the generator hydrogen leakage position detection equipment at the point to be detected, and T is the detection cycle of the leak detector 203.

[0069] The working principle and beneficial effects of the above technical solution are: It is a subjective estimation value of the staff based on the image of the camera 202, and the value is 1-10. After the evaluation system calculates the hydrogen leakage severity evaluation coefficient of the point to be detected, the staff takes corresponding remedial measures based on the calculation result.

[0070] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A generator hydrogen leakage position detection device, characterized in that: The invention comprises a transmitting end machine (1), a receiving end machine (2) and a connection adjustment component (3), wherein the transmitting end machine (1) and the receiving end machine (2) are connected via the connection adjustment component (3), the transmitting end machine (1) is provided with a light source (100), a condenser (101), a crack plate (102) and a spherical reflector 1 (103), the receiving end machine (2) is provided with a spherical reflector 2 (200), a blade (201), a camera (202) and a leak detector (203), the spherical reflector 1 (103) and the spherical reflector 2 (200) are arranged relative to each other, and a detection area (204) is formed between the spherical reflector 1 (103) and the spherical reflector 2 (200); The device also includes an evaluation system, which is electrically connected to the leak detector (203) and the camera (202). The evaluation system calculates a hydrogen leakage severity evaluation coefficient of the detection point based on the leak detector (203) and the camera (202): ； in, is the hydrogen leakage severity assessment coefficient of the point to be tested, is the airflow turbulence coefficient in the camera (202) image, is the detection error coefficient of the leak detector (203), is the detection value of the leak detector (203) in the i-th detection cycle, t is the total detection time of the generator hydrogen leakage position detection device at the point to be detected, and T is the detection cycle of the leak detector (203).

2. A generator hydrogen leakage position detection device according to claim 1, characterized in that: The transmitting end machine (1) and the receiving end machine (2) both comprise a machine body (4), a height adjustment component (5) and a machine base (6); a light source (100), a condenser (101), a crack plate (102) and a spherical reflector 1 (103) are mounted on the machine body (4) corresponding to the transmitting end machine (1); a spherical reflector 2 (200), a blade (201), a camera (202) and a leak detector (203) are mounted on the machine body (4) corresponding to the receiving end machine (2); the machine body (4) and the machine base (6) are connected via the height adjustment component (5); the two machine bases (6) are connected via the connection adjustment component (3); and a brake-type universal wheel component (600) is mounted at the bottom of the machine base (6).

3. A generator hydrogen leakage position detection device according to claim 2, characterized in that: The height adjustment assembly (5) comprises a height adjustment motor (500), the height adjustment motor (500) being fixedly connected in a nut slide groove (501) of a machine base (6), two output ends of the height adjustment motor (500) being fixedly connected with two adjusting screws (502) with opposite rotation directions, the two adjusting screws (502) being threadedly connected with adjusting nuts (503), the two adjusting nuts (503) being hingedly connected with a connecting rod 1 (504) and a connecting rod 2 (505), respectively, the connecting rod 1 (504) and the connecting rod 2 (505) being arranged crosswise, and the ends of the connecting rod 1 (504) and the connecting rod 2 (505) away from the two adjusting nuts (503) being hingedly connected to the bottom of the machine body (4).

4. A generator hydrogen leakage position detection device according to claim 2, characterized in that: The connection adjustment assembly (3) comprises two groups of slide bars (300) and a connection plate (304). The two groups of slide bars (300) are respectively slidably connected in the slide bar receiving grooves (301) of the two machine bases (6). A plurality of positioning through holes (302) are evenly arranged on the slide bars (300). The machine base (6) is slidably connected with positioning bolts (303) up and down. The positioning bolts (303) are used to cooperate with the positioning through holes (302). One end of the two slide bars (300) away from the machine base (6) is installed on the connection plate (304). A telescopic positioning suction cup (305) is installed at the bottom of the connection plate (304).

5. A generator hydrogen leakage position detection device according to claim 2, characterized in that: The machine body (4) comprises a machine shell (400), a plate storage groove (4000) is provided on the side of the machine shell (400), a position adjustment slide rod (4001) is fixedly connected in the plate storage groove (4000), a position adjustment sleeve (4002) is slidably connected to the position adjustment slide rod (4001), a plate body 1 (4003) is rotatably connected to the position adjustment sleeve (4002), a plate body 2 (4004) is sleeved on the plate body 1 (4003), the plate body 2 (4004) corresponding to the transmitting end machine (1) is used to install a light source (100), a condenser (101) and a crack plate (102), and the plate body 2 (4004) corresponding to the receiving end machine (2) is used to install a blade (201), a camera (202) and a leak detector (203).

6. A generator hydrogen leakage position detection device according to claim 5, characterized in that: A receiving opening (401) is provided on the machine housing (400), and two symmetrically arranged sealing plates (402) are slidably connected in the receiving opening (401). A sealing plate control component and a spherical reflector removal component are provided in the machine housing (400), and the sealing plate control component is used to control the opening and closing of the sealing plate (402). The spherical reflector 1 (103) and the spherical reflector 2 (200) are respectively mounted on the two groups of spherical reflector removal components.

7. A generator hydrogen leakage position detection device according to claim 6, characterized in that: The sealing plate control assembly comprises two symmetrically arranged electric control screws (7), the electric control screws (7) being rotatably connected in a control nut slide groove (700) of a machine housing (400), the electric control screws (7) being threadedly connected with a control nut (701), the control nut (701) being fixedly connected with a rocker arm (702), one end of the rocker arm (702) away from the control nut (701) being hingedly connected to a push block (703), the push block (703) being slidably connected to a push block slide rod (704), the push block slide rod (704) being mounted on a connecting block (705), the two connecting blocks (705) being fixedly connected to the backs of the two sealing plates (402), respectively, and a sliding receiving groove (706) being provided below the receiving opening (401) on the front and rear inner side walls of the machine housing (400).

8. A generator hydrogen leakage position detection device according to claim 6, characterized in that: The spherical reflector removal assembly comprises a mounting base (8), the mounting base (8) is rotatably connected to a rotating shaft 1 (800), the rotating shaft 1 (800) is fixedly connected to a supporting rod (8000) and a gear 1 (8001), one end of the supporting rod (8000) away from the rotating shaft 1 (800) is sleeved on a rotating shaft 2 (8002), the rotating shaft 2 (8002) is rotatably connected to a support (8003), the spherical reflector 1 (103) and the spherical reflector 2 (200) are fixedly connected to the support (8003), the rotating shaft 2 (8002) is fixedly connected to a gear 3 (8001), and the rotating shaft 2 (8002) is fixedly connected to the gear 3 (8001). 004) and winding wheel two (8005), the mounting base (8) is coaxially connected with gear two (8006) and winding wheel one (8007), the support (8003) is rotatably connected with gear four (8008), gear one (8001) and gear two (8006) are meshed with each other, winding wheel one (8007) and winding wheel two (8005) are connected by connecting winding wire (8009), the connecting winding wire (8009) passes through the supporting rod (8000), and the two sides of gear four (8008) are respectively meshed with gear three (8004) and the support (8003).

9. A generator hydrogen leakage position detection device according to claim 6, characterized in that: The reflector cleaning assembly also includes a cleaning roller mounting frame (9), the cleaning roller mounting frame (9) being slidably connected to the bottom of the inner wall of the machine housing (400) in the left and right manner, a plurality of cleaning rollers (900) being rotatably connected to the cleaning roller mounting frame (9), a driving wire reel (901) being rotatably connected inside the machine housing (400), a driving wire reel (902) being wound around the driving wire reel (901), an end of the driving wire reel (902) away from the driving wire reel (901) being fixedly connected to one end of the cleaning roller mounting frame (9), an elastic member 1 (903) and an elastic member 2 (904) being fixedly connected to the left and right ends of the cleaning roller mounting frame (9), an impurity scraping and filtering net (905) being fixedly connected below the cleaning roller mounting frame (9) in the machine housing (400), an impurity collecting groove (906) being provided below the impurity scraping and filtering net (905), and a plug body (907) being installed at the bottom of the machine housing (400).

Images