CN216433267U

CN216433267U - Carbon brush temperature monitoring device and monitoring system

Info

Publication number: CN216433267U
Application number: CN202123174271.3U
Authority: CN
Inventors: 翁忠华; 顾海英; 陈朝晔; 吴海绒; 陈长和; 季学友; 潘明泽
Original assignee: Hangzhou Zhongwei Electronic Technology Co ltd; Zhejiang Zheneng Wenzhou Power Generation Co ltd
Current assignee: Hangzhou Zhongwei Electronic Technology Co ltd; Zhejiang Zheneng Wenzhou Power Generation Co ltd
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-05-03
Anticipated expiration: 2031-12-14

Abstract

The utility model discloses a carbon brush temperature monitoring devices and monitoring system, including SMD temperature sensor, be used for with SMD temperature sensor fix the sensor mounting on the carbon brush box, with SMD temperature sensor data communication connection's monitor, the utility model discloses can implement monitoring carbon brush temperature, the protection carbon brush improves generator operation security, and the sensor mounting can closely laminate SMD temperature sensor on the carbon brush box surface, improves the monitoring precision, and the data that SMD temperature sensor monitored can be transmitted for the monitor, and the monitor can be through monitor short distance wireless communicator with data transmission, and the monitor is from taking the battery, need not other power supply, does not receive external power supply restraint, and the monitor can pass through.

Description

Carbon brush temperature monitoring device and monitoring system

[ technical field ] A method for producing a semiconductor device

The utility model relates to a technical field of carbon brush monitoring, especially carbon brush temperature monitoring devices and monitoring system's technical field.

[ background of the invention ]

The carbon brush and the slip ring are equipment for the dynamic and static contact and energy exchange of the generator and are important components of the excitation system of the generator. However, due to a plurality of reasons, overheating often occurs in operation, and the safe operation of the generator is seriously endangered. In order to ensure the safe and stable operation of a unit, a power plant has strict regulations on the maintenance of a standard carbon brush, the temperature measurement of the carbon brush is an important item in the daily maintenance of the carbon brush, the temperature of the carbon brush is generally measured regularly by an infrared thermometer, the working environment of carbon brush equipment is influenced by various factors such as dust, the infrared thermometer cannot obtain reliable temperature data, the inspection time interval is long, the real-time online monitoring cannot be realized, and the fault cannot be found in real time.

The normal operation temperature of the carbon brush is generally 50-80 ℃ (about 40 ℃ higher than the ambient temperature), the current distribution of the carbon brush is relatively balanced as a whole, and the working current of each carbon brush is 20-100A. The pressure of the brush holder spring is uniform, the carbon brush moves freely and the phenomenon of vibration and jamming does not occur. The heat generated in the running process of the carbon brush and the collector ring is taken away by the ventilation system, namely, the heat generation and the heat dissipation are basically balanced. Under the normal operation state, when the load increases the current and increases or the individual carbon brush working condition becomes poor, the temperature will increase slightly for a short time, and the system can maintain the balance or reach a new balance state. However, if the carbon brush is shortened, the pressure of the brush holder spring is reduced, the contact resistance is increased, and the running condition of the carbon brush is deteriorated, when the working current is increased and the temperature is changed, the balance capability of the system is reduced, and the temperature of part of the carbon brush is increased, so that the temperature of the whole system is increased, and sometimes even the whole system reaches an uncontrollable state. The temperature of the carbon brush and the collector ring is up to more than 100 ℃ during heating, and is up to 200-300 ℃ when the temperature is the most serious. At the moment, the working state of the carbon brush is worse and worse, the current distribution of the carbon brush is very uneven, the current of a few carbon brushes reaches 300A, and the current of other carbon brushes is close to 0. Abnormal jumping or jamming of a large number of carbon brushes and a large number of sparks occur, and the brush braid is burned off or stripped; the friction sound of the carbon brush and the collecting ring becomes sharp and harsh until the collecting ring is ignited, so that the monitoring significance of the temperature of the carbon brush is very important.

To this, chinese utility model patent that patent number is CN205748480U provides a generator carbon brush electric current and temperature on-line monitoring and early warning device, including main control equipment, display output module and at least one carbon brush monitoring unit, carbon brush monitoring unit includes microcontroller, analog-to-digital conversion unit, at least one current sensor and at least one temperature sensor, microcontroller, display output module links to each other with main control equipment respectively, the last warning relay interface that is equipped with of main control equipment, current sensor establishes ties on the return circuit of generator carbon brush, temperature sensor installs in the generator and contacts with the carbon brush, current sensor, temperature sensor's output links to each other through analog-to-digital conversion unit and microcontroller's input respectively. The utility model discloses a can realize the electric current and the temperature of real-time collection generator carbon brush, realize the real-time on-line monitoring of generator carbon brush electric current and temperature and show, for generator carbon brush detects and provides support with the diagnosis, can realize reporting to the police when electric current or temperature are unusual and export and upload, use manpower sparingly in a large number and patrol and examine the time cost. However, the carbon brush monitoring unit and the main control equipment are connected through wires, so that the connection is inconvenient, the installation is inconvenient, the distance between the main control equipment and the carbon brush monitoring unit cannot be too far, a plurality of different areas cannot be monitored simultaneously, and the monitoring precision is relatively general.

[ Utility model ] content

The utility model discloses an aim at solving the problem among the prior art, provide a carbon brush temperature monitoring devices and monitoring system, can real-time supervision carbon brush temperature, the protection carbon brush improves generator operation security.

In order to achieve the above object, the present invention provides a carbon brush temperature monitoring device and monitoring system, comprising a surface mount type temperature sensor, a sensor fixing member for fixing the surface mount type temperature sensor on a carbon brush box, and a monitor connected with the surface mount type temperature sensor in data communication, wherein the sensor fixing member comprises a fixed outer shell, a shell inner cavity is arranged in the fixed outer shell, an opening communicated with the outside is arranged at one side of the shell inner cavity, a top block is slidably arranged in the shell inner cavity, a plurality of driving springs which can be matched with the shell inner cavity for driving the top block to slide towards the end far away from the shell inner cavity are arranged at the back of the top block, the surface mount type temperature sensor is fixedly arranged at one side of the top block far away from the shell inner cavity, a shell bonding surface for bonding connection with the carbon brush box is arranged at the side of the fixed outer shell close to the opening of the shell inner cavity, be equipped with the detector mainboard in the monitor, with detector mainboard electric connection's monitor short distance wireless communicator, with detector mainboard electric connection's battery, SMD temperature sensor output through high temperature resistant wire with detector mainboard data communication connection in the monitor, monitor one side is equipped with a plurality of high temperature resistant strips of pasting.

As preferred, still include can with monitor data communication connection's monitor terminal, monitor terminal includes the monitor terminal casing and locates monitor terminal mainboard in the monitor terminal casing, be equipped with in the monitor terminal casing with monitor terminal mainboard electric connection's second short distance wireless communicator, the monitor terminal mainboard pass through with the detector mainboard passes through monitor short distance wireless communicator with second short distance wireless communicator wireless communication connection, be equipped with on the monitor terminal casing with monitor terminal mainboard electric connection's human-computer interaction panel.

Preferably, the monitor short-range wireless communicator and the second short-range wireless communicator are bluetooth communicators.

Preferably, the monitoring terminal mainboard is further provided with a network communication module capable of accessing a network, and the network communication module is a 4G, 5G or WiFi communication module.

Preferably, the monitoring terminal shell is further provided with an audible and visual alarm electrically connected with the monitoring terminal main board.

Preferably, the monitoring terminal shell is provided with a plurality of magnetic blocks for fixing the monitoring terminal shell in a magnetic way.

Preferably, the side of the top block is provided with a plurality of protruding clamping blocks, the inner side wall of the inner cavity of the shell is vertically provided with a plurality of sliding grooves which can be matched with the clamping blocks to limit the top block in the inner cavity of the shell, and the clamping blocks are slidably arranged in the sliding grooves.

Preferably, the monitor is provided with at least two connection ports electrically connected with the detector mainboard, and one end of the high-temperature-resistant wire, which is far away from the patch type temperature sensor, is provided with a connector which can be detachably and electrically connected with the connection ports.

Preferably, the bonding surface of the shell is fixedly connected with the carbon brush box through high-temperature-resistant glue.

The utility model discloses carbon brush temperature monitoring devices and monitoring system's beneficial effect: the utility model discloses a set up SMD temperature sensor and can fix on the carbon brush box, the temperature of real-time supervision carbon brush box, it is fixed SMD temperature sensor to set up the sensor mounting, it is fixed more convenient, set up SMD temperature sensor on the kicking block during fixed, the casing bonding surface of fixing the shell body bonds fixedly with the outer carbon brush box bonding of the carbon brush of required monitoring, drive spring in the casing intracavity can drive the kicking block and closely laminate SMD temperature sensor on carbon brush box surface, improve the monitoring precision, the data that SMD temperature sensor monitored can be given for the monitor, the monitor can be through monitor short distance wireless communicator with data transmission, the monitor is from taking the battery, need not in addition power supply, do not receive external power supply restraint, the monitor can bond in the lower position of generator internal temperature through high temperature resistant paster, avoid the generator internal temperature too high to cause the damage.

The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.

[ description of the drawings ]

Fig. 1 is a schematic view of the structure of the carbon brush temperature monitoring device and monitoring system of the present invention.

Fig. 2 is the structural schematic diagram of the surface mount type temperature sensor, the sensor fixing member and the monitor of the carbon brush temperature monitoring device and the monitoring system of the present invention.

Fig. 3 is the utility model discloses carbon brush temperature monitoring devices and monitoring system's SMD temperature sensor and sensor mounting structural schematic diagram look down.

Fig. 4 is a schematic view of the structure of the carbon brush temperature monitoring device and monitoring system of the present invention.

Fig. 5 is the utility model discloses carbon brush temperature monitoring devices and monitoring system's monitor terminal rear view structure schematic diagram.

Fig. 6 is a block diagram of the carbon brush temperature monitoring device and monitoring system of the present invention.

In the figure: the device comprises a chip type temperature sensor 1, a chip type temperature sensor 2, a sensor fixing piece 3, a monitor 4, a high-temperature-resistant lead 5, a monitoring terminal 21, a fixed outer shell 22, a top block 23, a driving spring 211, a shell inner cavity 212, a shell bonding surface 2111, a sliding groove 31, a high-temperature-resistant adhesive strip 32, a connecting port 41, a connector 51, a monitoring terminal shell 52, a human-computer interaction panel 53, an audible and visual alarm and a magnetic suction block 54.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood, however, that the description herein of specific embodiments is only illustrative and not intended to limit the scope of the present disclosure. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the present concepts.

In the present description, it should be noted that when an element is referred to as being "fixed" or "disposed" to another element, it can be directly on the other element or be indirectly connected to the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present invention, it should be noted that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the products of the present invention are used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the present description, "plurality" means two or more unless specifically defined otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the present description, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment is as follows:

referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 6, the utility model discloses carbon brush temperature monitoring device and monitoring system, including SMD temperature sensor 1, be used for fixing SMD temperature sensor 1 on the carbon brush box sensor mounting 2, with SMD temperature sensor 1 data communication connection's monitor 3. The sensor mount 2 includes a mount outer housing 21. A housing inner cavity 211 is provided in the stationary outer housing 21. An opening communicated with the outside is arranged on one side of the inner cavity 211 of the shell. A top block 22 is slidably disposed within housing interior 211. The back of the top block 22 is provided with a plurality of driving springs 23 which can be matched with the inner cavity 211 of the shell and are used for driving the top block 22 to slide towards the end far away from the inner cavity 211 of the shell. The patch type temperature sensor 1 is fixedly arranged on one side of the top block 22 far away from the inner cavity 211 of the shell. A shell bonding surface 212 used for being bonded with the carbon brush box is arranged on the fixed shell body 21 and close to the opening side of the shell inner cavity 211. The monitor 3 is internally provided with a detector mainboard, a monitor short-distance wireless communicator electrically connected with the detector mainboard and a storage battery electrically connected with the detector mainboard. The output end of the patch type temperature sensor 1 is connected with the main board of the detector in the monitor 3 through a high temperature resistant wire 4 in a data communication way. One side of the monitor 3 is provided with a plurality of high temperature resistant adhesive strips 31. In the embodiment, the patch type temperature sensor 1 can be fixed on a carbon brush box by arranging the patch type temperature sensor 1, the temperature of the carbon brush box is monitored in real time, the patch type temperature sensor 1 is fixed by arranging the sensor fixing part 2, the fixing is more convenient, the patch type temperature sensor 1 is arranged on the top block 22 during the fixing, the shell bonding surface 212 of the fixed outer shell 21 is bonded and fixed with the carbon brush box outside the carbon brush to be monitored, the driving spring 23 in the inner cavity 211 of the shell can drive the top block 22 to tightly attach the patch type temperature sensor 1 on the surface of the carbon brush box, the monitoring accuracy is improved, the data monitored by the patch type temperature sensor 1 can be transmitted to the monitor 3, the monitor 3 can transmit the data out by a short-distance wireless communicator of the monitor, the monitor 3 is provided with a storage battery without an additional power supply and is not restricted by an external power supply, the monitor 3 can be bonded at a position with lower temperature in the generator by the high-temperature resistant bonding strip 31, avoid the damage caused by overhigh temperature in the generator.

Referring to fig. 1 and 6, the monitoring terminal 5 is further included and can be connected with the monitor 3 in data communication. The monitoring terminal 5 comprises a monitoring terminal shell 51 and a monitoring terminal main board arranged in the monitoring terminal shell 51. A second short-distance wireless communicator electrically connected with the monitor terminal main board is disposed in the monitor terminal housing 51. The monitoring terminal mainboard is in wireless communication connection with the detector mainboard through the monitor short-distance wireless communicator and the second short-distance wireless communicator. The monitoring terminal shell 51 is provided with a human-computer interaction panel 52 electrically connected with the monitoring terminal mainboard. The monitoring terminal 5 can receive the data of the surface mount type temperature sensor 1 through the matching of the monitor short-distance wireless communicator and the second short-distance wireless communicator and display the data through the man-machine interaction panel 52, so that the data can be conveniently observed by the staff. One monitoring terminal 5 can be connected with a plurality of monitors 3 and can monitor a plurality of carbon brushes simultaneously.

Referring to fig. 6, the monitoring terminal motherboard is further provided with a network communication module capable of accessing a network. The network communication module is a WiFi communication module. The monitoring terminal mainboard can transmit monitoring data to remote monitoring terminals such as computers and mobile phones through the network communication module, so that remote monitoring is facilitated.

Referring to fig. 1 and 6, the monitoring terminal housing 51 is further provided with an audible and visual alarm 53 electrically connected to the monitoring terminal main board. When the temperature is too high, the monitor terminal mainboard can control audible-visual annunciator 53 to send audible-visual annunciator the very first time, and the staff of being convenient for in time discovers.

Example two:

referring to fig. 5, the monitoring terminal housing 51 is provided with a plurality of magnetic blocks 54 for magnetically attracting and fixing the monitoring terminal housing 51. The monitoring terminal 5 is convenient to fix through the magnetic suction block 54, the installation and the disassembly are more convenient, and the punching installation or the installation through other fixing pieces are not needed.

Referring to fig. 2, the side of the top block 22 is provided with a plurality of protruding locking bumps 221. A plurality of sliding grooves 2111 which can be matched with the clamping protrusions 221 to limit the top block 22 in the inner cavity 211 of the shell are vertically arranged on the inner side wall of the inner cavity 211 of the shell. The locking protrusion 221 is slidably disposed in the sliding slot 2111. The engagement of the locking protrusion 221 with the slot 2111 defines a sliding position of the top block 22, preventing the top block 22 from being separated from the housing cavity 211.

Referring to fig. 2, the monitor 3 is provided with three connection ports 32 electrically connected to the main board of the detector. One end of the high temperature resistant lead 4 far away from the patch type temperature sensor 1 is provided with a connector 41 which can be detachably and electrically connected with the connection port 32. Through the detachable fit of the connector 41 and the connection port 32, one monitor 3 can be connected with a plurality of patch type temperature sensors 1 at the same time, and the temperatures of a plurality of carbon brushes can be monitored at the same time.

Preferably, the shell bonding surface 212 is fixedly connected to the brush box by a high temperature resistant glue. Improve the steadiness, avoid high temperature to cause sensor mounting 2 to drop.

The utility model discloses the working process:

the utility model discloses carbon brush temperature monitoring devices and monitoring system are in the course of the work, set up SMD temperature sensor 1 on kicking block 22, monitor 3 bonds in the lower position of generator internal temperature through high temperature resistant sticker 31, the casing bonding face 212 with fixed shell body 21 bonds fixedly with the outer carbon brush box of carbon brush of required monitoring, driving spring 23 in the casing inner chamber 211 can drive kicking block 22 and closely laminate SMD temperature sensor 1 on the carbon brush box surface, improve the monitoring precision, the data of SMD temperature sensor 1 monitoring are transmitted for monitor 3 through high temperature resistant wire 4, monitor 3 can transmit data for monitor terminal 5 through the cooperation of monitor short distance wireless communicator and second short distance wireless communicator, and show through human-computer interaction panel 52, the staff observation data of being convenient for. A monitor terminal 5 can be connected with a plurality of monitors 3, can monitor a plurality of carbon brushes simultaneously, and the monitor terminal mainboard can transmit monitoring data for monitor terminals such as remote computers, cell-phones through network communication module, the remote monitoring of being convenient for.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims

1. Carbon brush temperature monitoring devices and monitoring system, including SMD temperature sensor (1), be used for with sensor mounting (2) on the carbon brush box are fixed in SMD temperature sensor (1), with SMD temperature sensor (1) data communication connection's monitor (3), its characterized in that: sensor mounting (2) is including fixed shell body (21), be equipped with casing inner chamber (211) in fixed shell body (21), casing inner chamber (211) one side is equipped with the opening with external intercommunication, slidable is equipped with kicking block (22) in casing inner chamber (211), kicking block (22) back be equipped with a plurality ofly can with casing inner chamber (211) cooperation is used for the drive kicking block (22) are to keeping away from gliding drive spring (23) of casing inner chamber (211) end, SMD temperature sensor (1) are fixed to be located keep away from on kicking block (22) one side of casing inner chamber (211), be close to on fixed shell body (21) casing inner chamber (211) opening side is equipped with and is used for casing bonding surface (212) with carbon brush box bonding connection, be equipped with in monitor (3) detector mainboard, monitor with detector mainboard electric connection's short distance wireless communicator, With detector mainboard electric connection's battery, SMD temperature sensor (1) output pass through high temperature resistant wire (4) with detector mainboard data communication connection in monitor (3), monitor (3) one side is equipped with a plurality of high temperature resistant strips of pasting (31).

2. The carbon brush temperature monitoring device and monitoring system according to claim 1, characterized in that: still include can with monitor (3) data communication connection's monitor terminal (5), monitor terminal (5) include monitor terminal casing (51) and locate monitor terminal mainboard in monitor terminal casing (51), be equipped with in monitor terminal casing (51) with monitor terminal mainboard electric connection's second short distance wireless communicator, the monitor terminal mainboard pass through with the detector mainboard passes through monitor short distance wireless communicator with second short distance wireless communicator wireless communication connects, be equipped with on monitor terminal casing (51) with monitor terminal mainboard electric connection's human-computer interaction panel (52).

3. The carbon brush temperature monitoring device and monitoring system according to claim 2, characterized in that: the monitor short-range wireless communicator and the second short-range wireless communicator are Bluetooth communicators.

4. The carbon brush temperature monitoring device and monitoring system according to claim 2, characterized in that: the monitoring terminal mainboard is also provided with a network communication module capable of accessing a network, and the network communication module is a 4G, 5G or WiFi communication module.

5. The carbon brush temperature monitoring device and monitoring system according to claim 2, characterized in that: and the monitoring terminal shell (51) is also provided with an audible and visual alarm (53) electrically connected with the monitoring terminal mainboard.

6. The carbon brush temperature monitoring device and monitoring system according to claim 2, characterized in that: the monitoring terminal shell (51) is provided with a plurality of magnetic suction blocks (54) for fixing the monitoring terminal shell (51) in a magnetic suction manner.

7. The carbon brush temperature monitoring device and monitoring system according to claim 1, characterized in that: the lateral side of the top block (22) is provided with a plurality of protruding blocks (221), the inner lateral wall of the inner cavity (211) of the shell is vertically provided with a plurality of sliding grooves (2111) which can be matched with the protruding blocks (221) to limit the top block (22) in the inner cavity (211) of the shell, and the protruding blocks (221) can be slidably arranged in the sliding grooves (2111).

8. The carbon brush temperature monitoring device and monitoring system according to claim 1, characterized in that: monitor (3) on be equipped with at least two with detector mainboard electric connection's connection port (32), keep away from on high temperature resistant wire (4) the one end of SMD temperature sensor (1) be equipped with can with electric connection's joint (41) can be dismantled in connection port (32).

9. The carbon brush temperature monitoring device and monitoring system according to claim 1, characterized in that: the shell bonding surface (212) is fixedly connected with the carbon brush box through high-temperature-resistant glue.