Combustion pulsation vibration monitoring system with screen display

Abstract

The utility model relates to a combustion pulsation vibration monitoring system with a screen display function, which belongs to the technical field of gas turbine monitoring and comprises a shell, a cover plate, an outer frame and an interface component, the outer frame and the interface component are arranged between the shell and the cover plate, and a main PCB (printed circuit board) is arranged on the inner side of the outer frame. The interface assembly is used for transmitting pressure pulse signals and vibration acceleration signals to the main PCB, a display screen is arranged on the inner side of the shell, an assembly part is arranged on the side, close to the shell, of the cover plate, and a camera is arranged between the assembly part and the cover plate. Pressure pulse signals and vibration acceleration signals sent by the sensor assembly are obtained through the interface assembly, the signals are processed through the main PCB, the on-site combustion process can be photographed through the camera, signal changes are displayed through the display screen, faults are stopped in time, the maintenance cost is reduced, and the working efficiency is improved. The operation safety of the gas turbine is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to gas turbine monitoring technical field, concretely relates to a combustion pulsation vibration monitoring system with screen display. BACKGROUND

[0002] As an important equipment in the power generation industry, the stability of the combustion process of the gas turbine has an important influence on the safe operation of the power system and the power quality. However, during the combustion process of the gas turbine, combustion pulsation phenomenon often occurs, that is, there are fluctuations and instability in the pressure, temperature and vibration parameters during the combustion process. This combustion pulsation phenomenon can cause problems such as reduced combustion efficiency, shortened equipment life, increased noise and vibration, and seriously affects the performance and operation stability of the gas turbine. At present, the core technology of the gas turbine combustion pulsation monitoring system is still in the hands of some manufacturers, and the safe operation of the equipment of the power generation enterprise is largely restricted by the technical strength of the manufacturers, and there is less research on the monitoring and analysis function of the combustion pulsation monitoring system in China.

[0003] Therefore, it is of great significance to develop the current gas turbine combustion pulsation monitoring system. The Chinese patent document with the application number CN202110547040.8 discloses a gas turbine combustion chamber thermal acoustic oscillation online monitoring system, which can timely monitor the abnormal conditions in the combustion process, help the operation and maintenance personnel to timely master the state of the equipment, provide real-time data and alarm, timely stop the occurrence of faults, reduce the maintenance cost, and ensure the safe operation of the gas turbine. The existing combustion pulsation monitoring system lacks the function of taking pictures on the spot, and the operation and maintenance personnel are difficult to obtain the image information of the combustion site in time to analyze the combustion site. Moreover, the connection mode of the monitoring system and the sensor component is relatively single, the equipment compatibility is insufficient, and it is difficult to adapt to different application scenarios. In addition, the combustion site environment where the monitoring system is located is relatively harsh, there are dust and other pollutants, and the dustproof performance of the related equipment of the monitoring system needs to be improved. UTILITY MODEL CONTENT

[0004] The purpose of the utility model is to solve the above problems and provide a combustion pulsation vibration monitoring system with screen display.

[0005] The utility model realizes the above-mentioned purpose through the following technical scheme:

[0006] A combustion pulsation vibration monitoring system with screen display, comprising a shell, a cover plate, an outer frame and an interface assembly arranged between the shell and the cover plate, a main PCB board is arranged on the inner side of the outer frame, the interface assembly is used for transmitting pressure pulse signals and vibration acceleration signals to the main PCB board, a display screen is arranged on the inner side of the shell, an assembly part is arranged on the side of the cover plate close to the shell, a camera is arranged between the assembly part and the cover plate, and a through hole corresponding to the camera is arranged on the cover plate.

[0007] As a further optimization scheme of the utility model, the assembly part includes a camera pressing block and a wire harness pressing block, the camera pressing block and the wire harness pressing block are connected with the cover plate through threaded fasteners, and the camera is arranged between the camera pressing block and the cover plate.

[0008] As a further optimization scheme of the utility model, a rubber pad is arranged between the display screen and the outer frame.

[0009] As a further optimization scheme of the utility model, a battery and an inner frame are arranged on the side of the cover plate close to the shell, the battery is embedded in the inner frame, a key PCB board is arranged on one side of the outer frame, and touch keys are arranged on the key PCB board.

[0010] As a further optimization scheme of the utility model, a transparent baffle is arranged on the inner side of the through hole.

[0011] As a further optimization scheme of the utility model, the interface assembly includes a RIM head arranged on the outer side of the outer frame, and a signal input terminal and a signal output terminal arranged on the edge of the main PCB board.

[0012] As a further optimization scheme of the utility model, the outer frame is provided with openings corresponding to the signal input terminal and the signal output terminal, and a sealing element is arranged on the inner side of the openings of the outer frame.

[0013] As a further optimization scheme of the utility model, the sealing element includes an input port silica gel pad and an output port silica gel pad.

[0014] As a further optimization scheme of the utility model, the interface assembly further includes a Type-C interface, a SIM card interface, a TF card interface and an RJ45 interface arranged on the edge of the main PCB board, and the output port silica gel pad is used for sealing the signal output terminal, the Type-C interface, the SIM card interface, the TF card interface and the RJ45 interface.

[0015] As a further optimization scheme of the utility model, a strap fixing column is arranged on the outer side of the outer frame.

[0016] The utility model has the advantages of:

[0017] 1) The main PCB board of the utility model obtains the pressure pulse signal and the vibration acceleration signal sent by the sensor assembly through the interface assembly, and the signals are displayed through the display screen, so that the operator can monitor the fault condition of the gas turbine, reduce the maintenance cost, and ensure the safe operation of the gas turbine.

[0018] 2)The utility model discloses a camera is fixed through the assembly spare, and the camera is abutted at the through -hole through the camera pressure block of assembly spare, and the wiring harness pressure block is restricted to the circuit below the camera, and the battery is fixed through the inner frame, and it is convenient to wire the main PCB board and camera, battery, and the operator can take a photograph to the combustion process on the spot through the camera;

[0019] 3)The utility model discloses a plurality of terminal plug -in row signal input port and thundermo head signal input port have on the equipment top, and the connection of equipment and sensor component can adopt terminal plug -in row connection form or thundermo head connection form, be equipped with Type -C interface, SIM card interface, TF card interface and RJ45 interface on the main PCB board, make system have data transmission, charging, data storage and networking function, further improve the operation convenience, and improve equipment compatibility, satisfy a variety of work demand;

[0020] 4)The utility model discloses a plurality of terminal plug -in row signal input port and thundermo head signal input port have on the equipment top, and the connection of equipment and sensor component can adopt terminal plug -in row connection form or thundermo head connection form, be equipped with Type -C interface, SIM card interface, TF card interface and RJ45 interface on the main PCB board, make system have data transmission, charging, data storage and networking function, further improve the operation convenience, and improve equipment compatibility, satisfy a variety of work demand;

[0021] 5)The utility model discloses a plurality of terminal plug -in row signal input port and thundermo head signal input port have on the equipment top, and the connection of equipment and sensor component can adopt terminal plug -in row connection form or thundermo head connection form, be equipped with Type -C interface, SIM card interface, TF card interface and RJ45 interface on the main PCB board, make system have data transmission, charging, data storage and networking function, further improve the operation convenience, and improve equipment compatibility, satisfy a variety of work demand; ACCESORY

[0022] Figure 1 It is the system block diagram of the utility model;

[0023] Figure 2 It is the overall structure schematic view of the utility model;

[0024] Figure 3 It is the explosion drawing of the utility model;

[0025] Figure 4 It is the front view of the utility model;

[0026] Figure 5 It is the rear view of the utility model;

[0027] Figure 6 It is the plan view of the utility model;

[0028] Figure 7 It is Figure 4 A-A section view of

[0029] Figure 8 It isFigure 6 BB-direction sectional view;

[0030] Figure 9 This is a top view schematic diagram of the through-hole structure of this utility model;

[0031] Figure 10 This is a rear view of the main PCB board of this utility model;

[0032] Figure 11 This is a schematic diagram of the assembly structure of this utility model.

[0033] In the diagram: 1. Outer shell; 2. Cover plate; 3. Outer frame; 4. Main PCB board; 5. Display screen; 6. Assembly parts; 7. Camera; 8. Rubber pad; 9. Battery; 10. Inner frame; 11. Button PCB board; 12. Touch button; 13. Baffle; 14. Remo head; 15. Signal input terminal; 16. Signal output terminal; 17. Input port silicone pad; 18. Output port silicone pad; 19. Type-C interface; 20. SIM card interface; 21. TF card interface; 22. RJ45 interface; 23. Back strap fixing post; 24. Protruding rib; 25. 4G module chip; 601. Camera clamping block; 602. Cable harness clamping block; P. Fixing post; H. Through hole. Detailed Implementation

[0034] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0035] Example

[0036] like Figures 1-3 As shown, a combustion pulsation vibration monitoring system with a screen display includes a housing 1, a cover plate 2, an outer frame 3 disposed between the housing 1 and the cover plate 2, and an interface assembly. The outer frame 3 is connected to the rear side of the housing 1 by threaded fasteners, and the cover plate 2 is connected to the rear end of the outer frame 3 by threaded fasteners. A main PCB board 4 is connected to the inner side of the outer frame 3 by threaded fasteners. A display screen 5 is provided inside the housing 1. An assembly 6 is provided on the side of the cover plate 2 near the housing 1, and a camera 7 is provided between the assembly 6 and the cover plate 2. The cover plate 2 has a through hole H corresponding to the camera 7. The display screen 5, camera 7, battery 9, and interface assembly are all electrically connected to the main PCB board 4. The interface assembly is connected to a sensor assembly, which includes a pressure pulsation sensor and a vibration acceleration sensor. The interface assembly is used to transmit pressure pulse signals and vibration acceleration signals to the main PCB board 4. The housing 1, cover plate 2, outer frame 3, and the components between the housing 1 and the cover plate 2 constitute a combustion pulsation monitoring device.

[0037] The combustion pulsation monitoring device of the system, the main PCB board 4 receives the pressure pulse signal and vibration acceleration signal collected by the sensor assembly through the interface assembly, and displays the signals through the display screen 5, so that the operating personnel can monitor the fault condition of the gas turbine and prevent the occurrence of the fault, thereby reducing the maintenance cost and ensuring the safe operation of the gas turbine. Since the main PCB board 4 is externally connected with the display screen 5 and the camera 7, the operating personnel can perform relevant operations on the screen. At the same time, the camera 7 can also take pictures of the scene and upload them, providing the operating personnel with on-site photos.

[0038] Specifically, referring to Figures 4-9 and Figure 11 , the assembly 6 includes a camera pressing block 601 and a wire harness pressing block 602, both of which are connected with the cover plate 2 through threaded fasteners. The camera 7 is arranged between the camera pressing block 601 and the cover plate 2. The line between the camera 7 and the main PCB board 4 passes through the gap between the wire harness pressing block 602 and the cover plate 2, and the wire harness pressing block 602 is used to arrange and constrain the line, avoiding disordered lines. A stopper is arranged inside the through hole H. When installing the camera 7, the camera 7 is inserted into the through hole H from front to back. The camera pressing block 601 is connected to the cover plate 2 through threaded fasteners. After the threaded fasteners on both sides of the camera pressing block 601 are tightened, the camera pressing block 601 abuts against the camera 7, so that the camera 7 abuts against the stopper inside the through hole H, and the fixing of the camera 7 is completed. A rectangular rubber pad 8 is arranged between the display screen 5 and the outer frame 3. The inner side of the shell 1 is provided with a clamping groove corresponding to the display screen 5. The display screen 5 is fixed between the clamping groove and the outer frame 3 through the rubber pad 8.

[0039] The cover plate 2 is provided with a battery 9 and an inner frame 10 close to the shell 1, and the battery 9 is embedded in the inner frame 10. The battery 9 is fixed in the inner frame 10 by adhesion. The inner frame 10 is provided with two fixing columns P. If the connection between the battery 9 and the inner frame 10 is loose, the battery 9 can be reinforced by a pressing plate.

[0040] The display screen 5 on the shell 1 is preferably a touch LCD screen. The outer frame 3 is fixedly provided with a key PCB board 11 on one side. The key PCB board 11 is provided with touch keys 12. The shell 1 is provided with mounting holes corresponding to the touch keys 12. The touch keys 12 are divided into switch keys, camera keys and confirmation keys. The arrangement of the above keys is a common knowledge in the art, and will not be described in detail. The inner side of the through hole H on the cover plate 2 is provided with a transparent baffle 13, which is circular. The baffle 13 is preferably an acrylic plate. Referring to Figure 9The through hole H is composed of a camera mounting hole and a baffle mounting hole, and a set of stop pieces are arranged in the camera mounting hole. The stop pieces are preferably protruding ribs 24 arranged at four corners of the camera mounting hole. When the camera 7 is mounted, the camera 7 is mounted into the camera mounting hole of the through hole H, and the camera 7 is pressed against the protruding ribs 24 by the camera pressing block 601. The camera 7 is shielded by the baffle 13, thereby playing a dustproof role.

[0041] Further, as shown in Figure 10 , the interface assembly includes four Lemo heads 14 arranged at the top of the outer frame 3, and four signal input terminals 15 and four signal output terminals 16 arranged at the edges of the main PCB 4. The four signal input terminals 15 are arranged at the top of the main PCB 4, and the four signal output terminals 16 are arranged at the bottom of the main PCB 4. Thus, four terminal block signal input ports and four Lemo head signal input ports are formed at the top of the device. The connection with the sensor assembly can be in the form of terminal block connection or Lemo head connection. The outer frame 3 is provided with openings corresponding to the signal input terminals 15 and the signal output terminals 16, and the inner side of the openings in the outer frame 3 is provided with sealing pieces. The sealing pieces are divided into input port silica gel pads 17 and output port silica gel pads 18. As shown in Figure 6 , the outer frame 3 is provided with a harness fixing column 23 on the outside, which can be connected to a harness. The operator can hold the device with both hands, or can hang the device on the waist through the harness. The back of the cover plate 2 is provided with four M4 threaded holes, which can be used to fix the device on a support for operation demonstration.

[0042] The interface assembly further comprises a Type-C interface 19, a SIM card interface 20, a TF card interface 21 and an RJ45 interface 22 arranged at the edge of the main PCB 4. The input silica gel pad 17 is used for sealing the signal input terminal 15, and the output silica gel pad 18 is used for sealing the signal output terminal 16, the Type-C interface 19, the SIM card interface 20, the TF card interface 21 and the RJ45 interface 22. One end of the input silica gel pad 17 is fixed to the top of the outer frame 3 by a threaded fastener, and one end of the output silica gel pad 18 is fixed to the bottom of the outer frame 3 by a threaded fastener. The Type-C interface 19 is connected to a computer and can input and output data; at the same time, the main PCB 4 can be programmed through the Type-C interface 19; the interface also has RS485 function and can communicate with the PLC controller; at the same time, the Type-C interface 19 can also be connected to an external power supply to charge the battery 9 in the device, and the battery 9 is preferably a lithium battery. The main PCB 4 is also provided with a 4G module chip 25, which can connect to the 4G network for wireless network communication when the correct SIM card is inserted into the SIM card interface 20, and the SIM card is preferably a Nano-SIM card. The device can also communicate through the RJ45 interface 22. The TF card interface 21 on the main PCB 4 can connect to the TF card to provide data storage function, and can store the pressure pulse signal and the vibration acceleration signal in real time and the image information collected by the camera 7.

[0043] When the combustion pulsation vibration monitoring system monitors the gas turbine, the main PCB 4 receives the pressure pulse signal and the vibration acceleration signal collected by the sensor assembly through the interface assembly, and displays the above signals on the LCD screen. In addition, in some other embodiments, the main PCB 4 is also connected with an alarm, and when the pressure pulse signal or the vibration acceleration signal exceeds the set value, the main PCB 4 controls the alarm to issue an alarm, and the alarm is preferably a buzzer.

[0044] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as limiting the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A combustion pulsation vibration monitoring system with screen display, comprising a housing (1) and a cover plate (2), and an outer frame (3) and an interface assembly arranged between the housing (1) and the cover plate (2), a main PCB board (4) is arranged inside the outer frame (3), and the interface assembly is used for transmitting pressure pulse signals and vibration acceleration signals to the main PCB board (4), characterized in that: The housing (1) is internally provided with a display screen (5), the cover plate (2) is provided with a mounting part (6) near one side of the housing (1), and the mounting part (6) and the cover plate (2) are provided with a camera (7) therebetween, and the cover plate (2) is provided with a through hole corresponding to the camera (7). ​ 2. The combustion pulsation vibration monitoring system with screen display according to claim 1, characterized in that: The mounting part (6) comprises a camera pressing block (601) and a wire harness pressing block (602), and the camera pressing block (601) and the wire harness pressing block (602) are connected with the cover plate (2) through threaded fasteners, and the camera (7) is arranged between the camera pressing block (601) and the cover plate (2).

3. The combustion pulsation vibration monitoring system with screen display of claim 1, wherein: The display screen (5) is provided with a rubber pad (8) between the display screen (5) and the outer frame (3).

4. The combustion pulsation vibration monitoring system with screen display of claim 1, wherein: The cover plate (2) is provided with a battery (9) and an inner frame (10) near one side of the housing (1), the battery (9) is embedded in the inner frame (10), and the outer frame (3) is provided with a key PCB (11) on one side, and the key PCB (11) is provided with a touch key (12).

5. The combustion pulsation vibration monitoring system with screen display of claim 4, wherein: The through hole is internally provided with a transparent baffle (13).

6. The combustion pulsation vibration monitoring system with screen display of claim 1, wherein: The interface assembly comprises a Ramm head (14) arranged on the outer side of the outer frame (3), and a signal input terminal (15) and a signal output terminal (16) arranged on the edge of the main PCB (4).

7. The combustion pulsation vibration monitoring system with screen display of claim 6, wherein: The outer frame (3) is provided with an opening corresponding to the signal input terminal (15) and the signal output terminal (16), and the inner side of the opening on the outer frame (3) is provided with a sealing part.

8. The combustion pulsation vibration monitoring system with screen display of claim 7, wherein: The sealing part comprises an input port silica gel pad (17) and an output port silica gel pad (18).

9. The combustion pulsation vibration monitoring system with screen display of claim 8, wherein: The interface assembly further comprises a Type-C interface (19), a SIM card interface (20), a TF card interface (21) and an RJ45 interface (22) arranged on the edge of the main PCB (4), and the output port silica gel pad (18) is used for sealing the signal output terminal (16), the Type-C interface (19), the SIM card interface (20), the TF card interface (21) and the RJ45 interface (22).

10. The combustion pulsation vibration monitoring system with screen display of claim 1, wherein: The outer side of the outer frame (3) is provided with a shoulder strap fixing column (23).

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