Device for detecting vibration of machine pump of nuclear power plant

Abstract

The utility model discloses a nuclear power plant machine pump vibration detection device which comprises a machine pump detector and a plurality of vibration sensors in wireless communication with the machine pump detector. The machine pump detector comprises a machine shell, a first processor is arranged in the machine shell, the machine shell is provided with a receiver, and the receiver is connected with the first processor; and each vibration sensor comprises a sensor main body, the sensor main body is provided with a second processor, and the sensor main body is also provided with an emitter connected with the second processor. According to the nuclear power plant machine pump vibration detection device, vibration detection of the machine pump can be achieved, the problems that wiring is complex and the distance is short can be solved, the requirement for the terrain is lowered, the remote or remote monitoring function can be achieved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of nuclear power, in particular to a vibration detection device for a pump in a nuclear power plant. Background Art

[0002] There are many types of mechanical pumps in nuclear power plants. During the production process, the vibration of the mechanical pumps needs to be detected to avoid abnormal vibration of the mechanical pumps and affect production safety.

[0003] A test device for the vibration amplitude of a water pump disclosed in an existing patent (publication number: CN205909929U) has at least the following defects in use: the existing equipment limits the installation position of the test device, increases the complexity of wiring and connection, has many working steps, and has low efficiency. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a vibration detection device for a nuclear power plant pump.

[0005] The technical solution adopted by the utility model to solve the technical problem is: construct a nuclear power plant pump vibration detection device, including a pump detector and a plurality of vibration sensors that wirelessly communicate with the pump detector;

[0006] The pump detector includes a casing, a first processor is arranged in the casing, a receiver is arranged in the casing, and the receiver is connected to the first processor; each vibration sensor includes a sensor body, the sensor body is provided with a second processor, and the sensor body is also provided with a transmitter connected to the second processor.

[0007] In some embodiments, the sensor body includes a first body and a second body, the first body and the second body are connected via a connector, and the connector is provided with the second processor and the transmitter.

[0008] In some embodiments, the vibration sensor further includes a detection plate connected to the first body via a spring.

[0009] In some embodiments, an anti-slip member is provided on the detection plate.

[0010] In some embodiments, a base is provided at the bottom of the second body.

[0011] In some embodiments, an adhesive piece is provided at the bottom of the base.

[0012] In some embodiments, the housing is provided with a power button connected to the first processor.

[0013] In some embodiments, a vibration alarm connected to the first processor is provided on the housing.

[0014] In some embodiments, the housing is provided with an acoustic device connected to the first processor.

[0015] In some embodiments, the number of the vibration sensors is at least four.

[0016] The implementation of the utility model has the following beneficial effects: the nuclear power plant machine pump vibration detection device can realize the vibration detection of the machine pump, and can get rid of the problems of complicated wiring and short distance, reduce the requirements for terrain, and can realize the function of remote or long-distance monitoring, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the utility model, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show certain embodiments of the utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0018] Figure 1 It is a structural schematic diagram of a nuclear power plant pump vibration detection device in some embodiments of the utility model;

[0019] Figure 2 It is a structural schematic diagram of a nuclear power plant pump vibration detection device in some embodiments of the utility model;

[0020] Figure 3 It is one of the structural schematic diagrams of the vibration sensor in some embodiments of the utility model;

[0021] Figure 4 This is the second structural schematic diagram of the vibration sensor in some embodiments of the utility model. DETAILED DESCRIPTION

[0022] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0023] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0024] In the following description, specific details such as specific system structures and technologies are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details that hinder the description of the present invention.

[0025] See also Figures 1 to 4 The utility model shows a nuclear power plant pump vibration detection device, which includes a pump detector 10 and a plurality of vibration sensors 20 wirelessly communicating with the pump detector 10. The vibration sensor 20 can be installed at a position where the pump needs to be vibrated, such as a pump casing or a basic pipeline of the pump.

[0026] The pump detector 10 includes a housing 11, a first processor is disposed in the housing 11, a receiver 12 is disposed in the housing 11, and the receiver 12 is connected to the first processor; each vibration sensor 20 includes a sensor body 21, a second processor is disposed in the sensor body 21, and a transmitter 22 is also disposed in the sensor body 21 connected to the second processor.

[0027] The pump vibration data collected by the vibration sensor 20 is sent to the receiver 12 via the transmitter 22, and the receiver 12 transmits the data to the first processor for processing. The pump detector 10 can be placed in the pump room, or outside the pump room, or in the industrial control room, and can perform remote or long-distance signal transmission with the vibration sensor 20. The pump detector 10 can also use existing vibration detection equipment.

[0028] In some embodiments, the first processor may include but is not limited to a microprocessor, a microcontroller, a digital signal processor, a microcomputer, a central processing unit, a field programmable gate array, a programmable logic device, a state machine, a logic circuit, an analog circuit, a digital circuit and / or any device based on an operation instruction operation signal (analog and / or digital), which may adopt a mature control scheme such as a main control MCU on the market, or be improved or innovatively designed according to needs, which will not be described in detail here. The relevant data processing of this application is mainly processed by the controller.

[0029] Similarly, the second processor may include but is not limited to a microprocessor, a microcontroller, a digital signal processor, a microcomputer, a central processing unit, a field programmable gate array, a programmable logic device, a state machine, a logic circuit, an analog circuit, a digital circuit and / or any device based on an operation instruction operation signal (analog and / or digital), which may adopt a mature control scheme such as a main control MCU on the market, or be improved or innovatively designed according to needs, which will not be described in detail here. The relevant data processing of this application is mainly processed by the controller.

[0030] In some embodiments, the transmitter 22 may include a communication module, which is not limited to a 3G / 4G / 5G module, a WIFI module, a ZigBee module, LoRa, NB-IoT, Bluetooth, etc.

[0031] In some embodiments, the receiver 12 may include a communication module, which is not limited to a 3G / 4G / 5G module, a WIFI module, a ZigBee module, LoRa, NB-IoT, Bluetooth, etc.

[0032] In some embodiments, the housing 11 is provided with a power button 13 connected to the first processor. A battery module may also be provided in the housing 11, and the battery module is used to provide power to the entire pump detector 10. The battery module may include but is not limited to a lithium-ion battery, and a power board connected to the lithium-ion battery. The power board may be connected to the first processor, or the first processor is integrated on the power board, and the power board may be a PCB board, such as a PCB-A board.

[0033] In some embodiments, the housing 11 is provided with a vibration alarm 14 connected to the first processor.

[0034] In some embodiments, a disconnection alarm 15 connected to the first processor is provided on the housing 11. If the pump detector 10 is disconnected from the vibration sensor 20, the disconnection alarm 15 may issue an alarm.

[0035] The power button 13, vibration alarm 14 and disconnection warning device 15 can be arranged at intervals in the same direction. The power button 13, vibration alarm 14 and disconnection warning device 15 can adopt the self-locking button with light produced by Yijia Industrial Control Electric Co., Ltd., model YJ139-LA38A.

[0036] In some embodiments, an acoustic device 16 connected to the first processor is disposed on the housing 11. The acoustic device 16 may be a speaker structure, and a protective cover may also be disposed on the housing 11.

[0037] In some embodiments, the housing 11 may be a square columnar structure, such as a cube or cubic structure, and the housing 11 may be made of insulating material or non-insulating material, such as stainless steel. The shape and material size of the housing 11 may be selected and set according to actual needs, and are not specifically limited here.

[0038] See also Figure 3 and Figure 4 In some embodiments, the sensor body 21 includes a first body 211 and a second body 212 , the first body 211 and the second body 212 are connected via a connector 213 , and the connector 213 is provided with a second processor and a transmitter 22 .

[0039] Preferably, the vibration sensor 20 also includes a detection plate 24 connected to the first body 211 through a spring 23. The detection plate 24 is used to connect to a component that needs to be vibrated. The spring 23 may be connected to the second processor. Understandably, the vibration sensor 20 may use a spring-type vibration sensor. Of course, the vibration sensor 20 may also use other types of sensors, and the vibration sensor 20 of the prior art may be used, which is not specifically limited here. The spring 23 may use a Yuanbang metal spring, model 40*100.

[0040] In some embodiments, the detection plate 24 is provided with an anti-slip member 25. The anti-slip member 25 may be sandpaper, or the anti-slip member 25 may be a concave-convex structure provided on the detection plate 24, and the cross-sectional dimension of the detection plate 24 may be greater than the cross-sectional dimension of the sensor body 21.

[0041] In some embodiments, a base 26 is disposed at the bottom of the second body 212. The cross-sectional dimension of the base 26 may be greater than the cross-sectional dimension of the second body 212.

[0042] In some embodiments, a sticking piece 27 is disposed at the bottom of the base 26. The sticking piece 27 may be, but is not limited to, adhesive stickers, self-adhesive stickers, and the like.

[0043] In some embodiments, the connector 213 may also be provided with a signal light 28 connected to the second processor, and the signal light 28 may display the current working state of the vibration sensor 20, such as green, which may indicate that the vibration sensor 20 is working. For example, red (which may be in a flashing state) may indicate that the vibration sensor 20 is not working or is in a disconnected state, and the result may be fed back to the disconnection alarm 15. The signal light 28 may be an LED light, and the LED may be an RGBW lamp bead.

[0044] In some embodiments, the number of the vibration sensors 20 is at least four. Multiple vibration sensors 20 can realize multi-position and multi-information information collection, and can be calibrated with each other, and are less affected by external factors. Because there are four vibration sensors, they can also be compared to improve the accuracy of the data. Of course, the number of the vibration sensors 20 can be one, two, three, four, five, six, seven, etc., which can be selected and set according to actual needs, and are not specifically limited here.

[0045] In some embodiments, the nuclear power plant pump vibration detection device is used as follows:

[0046] Place the vibration sensor 20 at the main position of the device to be measured, and stick the sticker 27 on the installation position to maintain stability. At the same time, put the detection plate 24 of the vibration sensor 20 in contact with the device to be measured to start working. Multiple vibration sensors 20 can send the collected data back to the machine pump detector 10 through the transmitter 22, and the machine pump detector 10 can process the collected data.

[0047] The nuclear power plant machine pump vibration detection device can realize the vibration detection of the machine pump, and can get rid of the problems of complicated wiring and short distance, reduce the requirements for terrain, and can realize the function of remote or long-distance monitoring to improve work efficiency.

[0048] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the utility model. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the utility model, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should fall within the scope of the claims of the utility model.

Claims

1. A vibration detection device for a nuclear power plant pump, characterized in that: It comprises a machine pump detector (10) and a plurality of vibration sensors (20) which wirelessly communicate with the machine pump detector (10); The pump detector (10) comprises a housing (11), a first processor is arranged in the housing (11), the housing (11) is provided with a receiver (12), and the receiver (12) is connected to the first processor; each vibration sensor (20) comprises a sensor body (21), the sensor body (21) is provided with a second processor, and the sensor body (21) is also provided with a transmitter (22) connected to the second processor.

2. The nuclear power plant pump vibration detection device according to claim 1, characterized in that: The sensor body (21) comprises a first body (211) and a second body (212); the first body (211) and the second body (212) are connected via a connector (213); the connector (213) is provided with the second processor and the transmitter (22).

3. The nuclear power plant pump vibration detection device according to claim 2, characterized in that: The vibration sensor (20) also includes a detection plate (24) connected to the first body (211) via a spring (23).

4. The nuclear power plant pump vibration detection device according to claim 3, characterized in that: The detection plate (24) is provided with an anti-slip member (25).

5. The nuclear power plant pump vibration detection device according to claim 3, characterized in that: A base (26) is provided at the bottom of the second body (212).

6. The nuclear power plant pump vibration detection device according to claim 5, characterized in that: An adhesive piece (27) is provided at the bottom of the base (26).

7. The nuclear power plant pump vibration detection device according to claim 1, characterized in that: The housing (11) is provided with a power button (13) connected to the first processor.

8. The nuclear power plant pump vibration detection device according to claim 1, characterized in that: The housing (11) is provided with a vibration alarm (14) connected to the first processor.

9. The nuclear power plant pump vibration detection device according to claim 1, characterized in that: The housing (11) is provided with an acoustic device (16) connected to the first processor.

10. The nuclear power plant pump vibration detection device according to claim 1, characterized in that: The number of the vibration sensors (20) is at least four.

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