CN208423410U - Thermoelectric generator carbon brush temperature current and abrasion on-line computing model - Google Patents
Thermoelectric generator carbon brush temperature current and abrasion on-line computing model Download PDFInfo
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- CN208423410U CN208423410U CN201821307005.9U CN201821307005U CN208423410U CN 208423410 U CN208423410 U CN 208423410U CN 201821307005 U CN201821307005 U CN 201821307005U CN 208423410 U CN208423410 U CN 208423410U
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Abstract
The utility model discloses a kind of thermoelectric generator carbon brush temperature currents and abrasion on-line computing model, and current strength sensor is arranged in the shunt welding of each carbon brush, acquires the current strength of the shunt welding of each carbon brush；Current strength sensor is connect through current signal line with data collection process device；Corresponding each carbon brush, is arranged temperature sensor, the temperature signal of carbon brush front end is conveyed into and is calculated；In each carbon brush, wear monitoring line is set, is insulated between wear monitoring line and carbon brush；Wear monitoring line front end to carbon brush front end distance, less than shunt welding front end to the distance of carbon brush front end.The monitor of the utility model firepower can detecte the running temperature of each carbon brush, the constantly data of electric current, alarm the carbon brush of data exception, and prompting is handled in time, avoid causing to damage to Generator Slip Ring；It effectively prevent copper conductive shunt welding directly and current collection ring surface contacts the loss for causing collector ring.
Description
Technical field
The utility model relates to a kind of carbon brush of thermoelectric generator, and in particular to a kind of thermoelectric generator carbon brush temperature current
With abrasion on-line computing model.
Background technique
Traditional generator is all to generate the principle of induced electromotive force using coil cutting magnetic field to generate electricity.Firepower or water
In turbine generator, current collecting equipment is its important component, it is mainly made of slip ring and carbon brush configuration two parts, when unit is run
When, exciting current is transmitted in the excitation winding on rotor through carbon brush configuration, slip ring and generates magnetic field, and coil is located on stator；When
When rotor surrounds stator rotation with excitation winding, coil cutting magnetic line on stator and obtain electric current.
In unit running process, since slip ring is in high speed rotary motion always, and carbon brush configuration belongs to stationary parts,
Necessarily lead to friction between the two, this kind friction necessarily leads to carbon brush abrasion, and carbon brush abrasion length is more than after technique tolerance band
It will replace.In addition, if collector ring is rough, carbon brush contacts bad with collector ring, easily causes carbon brush and collector ring
The bad phenomenons such as contact surface sparking.And contact bad between brush box and brush holder, current distribution is uneven is caused, carbon brush temperature liter is made
It is high.
Generator carbon brush belongs to easily-consumed products, according to operating condition difference be averaged half a year changed by 1 year it is primary.But for carbon brush
Abrasion is at present visually observed by patrol officer, on the one hand increases the workload of patrol officer in this way, on the other hand such as
Fruit patrol officer observation is not possible to leakage carefully and sees the carbon brush having worn out, due to the pre-buried conductive shunt welding in carbon brush tail portion, if
Carbon brush abrasion is to shunt welding position, and copper wire is directly and current collection ring surface contacts the loss that will cause collector ring, and current collection ring surface damages
Consumption will lead to again to become larger with the contact resistance of carbon brush so as to cause temperature rising, and temperature will lead to collector ring into one again after rising
Step loss, thus will form a vicious circle.
Moreover, thermal power generation unit revolving speed is very high, so collector ring revolving speed is fast, the linear velocity of collector ring and carbon brush contact surface
Very big, linear velocity results in greatly very much that carbon brush abrasion is fast, it is more to generate carbon dust, causes a series of safety accidents, to reduce linear velocity,
The diameter of collector ring is just smaller, and the position for resulting in collector ring circumference carbon brush is few；However unit capacity determines carbon brush
Quantity, for solve carbon brush count issue, thermoelectricity just uses porous type brush carrier with brush carrier, such as common are 3 holes, 4 holes, 5
Hole, 6 holes.
Carbon brush heat dissipation among especially porous brush carrier is bad, it is easier to it is excessively high temperature occur.When generator is run, carbon brush
Temperature and electric current be generator operate normally two big important parameters, existing generating equipment cannot be in real time to electric current and carbon brush
Temperature is monitored, cannot be by troubleshooting in the budding stage.
Summary of the invention
In view of the above shortcomings of the prior art, the technical problem to be solved by the utility model is to how to provide a kind of energy
Enough in normal operation, the temperature of thermoelectric generator carbon brush, the thermoelectric generator carbon of electric current and wear condition are monitored in real time
Brush temperature current and abrasion on-line computing model.
In order to solve the above-mentioned technical problem, the utility model uses a kind of the following technical solution: thermoelectric generator carbon
Brush temperature current and abrasion on-line computing model, including brush carrier are provided with handle, brush box on brush carrier, and brush box is two or more, often
Carbon brush is provided in a brush box, carbon brush rear end is provided with spring, and the front end of shunt welding is arranged in carbon brush, which is characterized in that every
Current strength sensor is set in the shunt welding of a carbon brush, acquires the current strength of the shunt welding of each carbon brush；Current strength sensor
It is connect through current signal line with data collection process device, intensity signals is conveyed into data collection process device and are calculated
Processing；
On brush box, temperature sensor is arranged in corresponding each carbon brush, and temperature sensor is located at the front end of carbon brush, and temperature passes
Sensor is connect by temperature signal line with data collection process device, and the temperature signal of carbon brush front end is conveyed into data collection process
Calculation processing is carried out in device；
In each carbon brush, wear monitoring line is set, is insulated between wear monitoring line and carbon brush；Wear monitoring line front end is arrived
The distance of carbon brush front end, less than shunt welding front end to the distance of carbon brush front end；Wear monitoring line experience wear signal wire and data collection
Processor connection, data collection process device are connected by way of wired connection or wireless transmission with data receiver and warning device
It connects.
It is further characterized in that, wear monitoring line front end, which is embedded in carbon brush, forms integral structure, from the rear end of carbon brush
Or side is stretched out.
A temperature signal collection device is arranged to connect with whole temperature sensors in each brush box, temperature signal collection device
It connect with temperature signal line, is connect by temperature signal line with data collection process device again.
Compared with prior art, the utility model thermoelectric generator carbon brush temperature current and abrasion on-line computing model have such as
Lower advantage:
1, the running temperature of each carbon brush, the constantly data of electric current be can detecte, the carbon brush of data exception is reported
It is alert, it reminds power plant staff to handle, avoids that Generator Slip Ring is caused to damage.
2, can be generated carbon brush operation historgraphic data recording, by the analysis to historical data can reflect out slip ring with
And the working condition of carbon brush.
3, it can detecte whether carbon brush has worn out maximum allowable abrasion length, once monitor that carbon brush is worn down to most
Alarm will be issued by allowing to wear length greatly, and power plant staff is reminded to carry out replacement carbon brush.
4, after carbon brush is worn in use, it effectively prevent copper conductive shunt welding directly and the contact of current collection ring surface
The loss for causing collector ring, temperature caused by further preventing the contact resistance formed after collector ring surface loss to become larger rise existing
As.
Detailed description of the invention
Fig. 1 is the utility model carbon brush and data processing warning device structural schematic diagram；
Fig. 2 is the utility model carbon brush structure schematic diagram；
Fig. 3 is carbon brush structure cross-sectional view.
In figure: 1-handle, 2-brush boxs, 3-carbon brush, 4-springs, 5-shunt weldings, 6-current strength sensors, 7-electricity
Signal wire, 8-temperature sensors, 9-temperature signal lines, 10-wear monitoring lines, 11-wear signal lines, 12-data are flowed to receive
Set processor, 13-data receivers and warning device, 14-temperature signal collection devices.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in Figure 1, 2, 3, a kind of thermoelectric generator carbon brush temperature current and abrasion on-line monitoring are present embodiments provided
Instrument, including brush carrier are provided with handle 1, brush box 2 on brush carrier, and brush box 2 is two or more, are provided with carbon brush 3 in each brush box 2,
3 front end of carbon brush is contacted with the collector ring of generator, and rear end is provided with spring 4, and spring 4 is usually constant force spring, the front end of shunt welding 5
It is arranged in carbon brush 3, rear end is stretched out from the tail end of carbon brush 3 or side, and the handle 1 is insulated handle；Brush distinguishes that 5 generally weave
Annealed copper wire, brush distinguish that fixed block is arranged in 5 ends, when installing carbon brush 3,3 front end of carbon brush are put into brush box that brush distinguishes that 5 pass through fixed block
Fixed (using bolt presses) on brush carrier, its rear end is connect with conducting ring makes the electric current on conducting ring distinguish that 5 are transmitted to carbon by brush
On brush 3.As the prior art, it is not described further herein.
The improvement of the utility model is the setting current strength sensor 6 in the shunt welding 5 of each carbon brush, acquires each carbon
The current strength of the shunt welding 5 of brush；Current strength sensor 6 is connect through current signal line 7 with data collection process device 12, by electric current
Strength signal, which is conveyed into data collection process device 12, carries out calculation processing；On brush box 2, temperature is arranged in corresponding each carbon brush 3
Sensor 8, temperature sensor 8 are located at the front end of carbon brush 3, and temperature sensor 8 passes through temperature signal line 9 and data collection process device
12 connections, the temperature signal of carbon brush front end is conveyed into data collection process device 12 and carries out calculation processing.
In each carbon brush 3, wear monitoring line 10 is set, is insulated between wear monitoring line 10 and carbon brush 3；Specifically it can be
Conducting wire is embedded in it when making carbon brush 3, front end, which is embedded in carbon brush 3, forms integral structure, wear monitoring line 10 from
The rear end of carbon brush 3 or side are stretched out；10 front end of wear monitoring line to 3 front end of carbon brush (which end contacted with collector ring) away from
From less than the distance of 5 front end of shunt welding to 3 front end of carbon brush；I.e. 10 front end of wear monitoring line than 5 front end of shunt welding closer to collector ring,
When carbon brush 3 is worn in use, 10 front end of wear monitoring line first may wear to.10 experience wear signal wire 11 of wear monitoring line and data
Collecting and treating apparatus 12 connects, and data collection process device 12 is by way of wired connection or wireless transmission, with data receiver and report
Alarm device 13 connects, and the signals such as temperature, current density, carbon brush abrasion situation acquired by data collection process device 12 calculate
Control signal is issued after processing, controls data receiver and warning device 13 issues alarm signal, usually sound and light signal, remind behaviour
Author pays attention to.When carbon brush 3 is worn in use, 10 front end of wear monitoring line first may wear to, destroy 10 front end of wear monitoring line
Abrasion detection line 10 and carbon brush 3 is connected in insulating layer, and data collection process device 12 will detect abrasion detection line 10 and carbon
The insulation of brush 3 reduces, and then inputs a signal into data receiver and warning device 13 and alarm.
If the contact of collector ring that the insulating layer of 10 front end of wear monitoring line is rotated and wear, abrasion detection line 10 and
It is connected between carbon brush 3, i.e., will generate electric signal, by wear signal line 11 by the electric signal input data collecting and treating apparatus 12
Calculation processing, then input data receive and warning device 13, if data exception will and alarm.In Fig. 3, D indicates carbon
The maximum length that brush 3 can be worn first may wear to 10 front end of wear monitoring line when carbon brush 3 is worn in use.
More than two carbon brush 3, the corresponding temperature sensor 8, Ke Yishe of each carbon brush 3 are provided in each brush box 2
A temperature signal collection device 14 is set to connect with whole temperature sensors 8 in each brush box 2, temperature signal collection device 14 again with
Temperature signal line 9 connects, and is connect by temperature signal line 9 with data collection process device 12, and the temperature signal of carbon brush front end is passed
Calculation processing is carried out in input data collecting and treating apparatus 12.
Finally, it should be noted that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application technology
Scheme, although applicant is described in detail the utility model referring to preferred embodiment, those skilled in the art
Should be appreciated that those, the technical solution of the present invention is modified or equivalently replaced, without departing from the technical program
Objective and range should all cover in the scope of the claims of the utility model.
Claims (3)
1. a kind of thermoelectric generator carbon brush temperature current and abrasion on-line computing model, including brush carrier, are provided with handle on brush carrier
(1), brush box (2), brush box (2) are two or more, are provided with carbon brush (3) in each brush box (2), carbon brush (3) rear end is provided with bullet
Spring (4), the front end setting of shunt welding (5) is in carbon brush (3), which is characterized in that it is strong that electric current is arranged in the shunt welding (5) of each carbon brush
It spends sensor (6), acquires the current strength of the shunt welding (5) of each carbon brush；Current strength sensor (6) is through current signal line (7)
It is connect with data collection process device (12), intensity signals is conveyed into data collection process device (12) and are carried out at calculating
Reason；
On brush box (2), corresponding each carbon brush (3) is arranged temperature sensor (8), and temperature sensor (8) is located at carbon brush (3)
Front end, temperature sensor (8) is connect by temperature signal line (9) with data collection process device (12), by the temperature of carbon brush front end
Signal, which is conveyed into data collection process device (12), carries out calculation processing；
In each carbon brush (3), it is arranged wear monitoring line (10), insulate between wear monitoring line (10) and carbon brush (3)；Abrasion prison
Survey line (10) front end to carbon brush (3) front end distance, be less than shunt welding (5) front end to carbon brush (3) front end distance；Wear monitoring line
(10) experience wear signal wire (11) is connect with data collection process device (12), data collection process device (12) by wired connection or
The mode of wireless transmission is connect with data receiver and warning device (13).
2. thermoelectric generator carbon brush temperature current according to claim 1 and abrasion on-line computing model, which is characterized in that mill
Damage monitoring line (10) front end, which is embedded in carbon brush (3), forms integral structure, stretches out from the rear end of carbon brush (3) or side.
3. thermoelectric generator carbon brush temperature current according to claim 1 and abrasion on-line computing model, which is characterized in that set
It sets a temperature signal collection device (14) to connect with whole temperature sensors (8) in each brush box (2), temperature signal collection device
(14) it connect with temperature signal line (9), is connect by temperature signal line (9) with data collection process device (12) again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821307005.9U CN208423410U (en) | 2018-08-14 | 2018-08-14 | Thermoelectric generator carbon brush temperature current and abrasion on-line computing model |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821307005.9U CN208423410U (en) | 2018-08-14 | 2018-08-14 | Thermoelectric generator carbon brush temperature current and abrasion on-line computing model |
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| CN208423410U true CN208423410U (en) | 2019-01-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879273A (en) * | 2018-08-14 | 2018-11-23 | 张宏伟 | Thermoelectric generator carbon brush temperature current and abrasion on-line computing model |
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2018
- 2018-08-14 CN CN201821307005.9U patent/CN208423410U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879273A (en) * | 2018-08-14 | 2018-11-23 | 张宏伟 | Thermoelectric generator carbon brush temperature current and abrasion on-line computing model |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190322 Address after: 400054 Fourteenth Society of Huaxi Xianfeng Village, Banan District, Chongqing Patentee after: Chongqing Huaneng Hydroelectric Equipment Manufacturing Co., Ltd. Address before: 400054 Chongqing Huaneng Hydropower Equipment Manufacturing Co., Ltd. Transfer Patentee before: Zhang Hongwei |
|
| TR01 | Transfer of patent right |