CN201269788Y - Temperature measuring apparatus for high voltage motor - Google Patents
Temperature measuring apparatus for high voltage motor Download PDFInfo
- Publication number
- CN201269788Y CN201269788Y CNU2008201882752U CN200820188275U CN201269788Y CN 201269788 Y CN201269788 Y CN 201269788Y CN U2008201882752 U CNU2008201882752 U CN U2008201882752U CN 200820188275 U CN200820188275 U CN 200820188275U CN 201269788 Y CN201269788 Y CN 201269788Y
- Authority
- CN
- China
- Prior art keywords
- bearing
- temperature
- motor
- temperature measuring
- thermal resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a temperature measuring device for high-voltage motor, which comprises a sealed bolt positioned at one side of the lower end of a bearing. A small hole is opened on the sealed bolt and internally provided with a temperature measuring probe used for monitoring the temperature of the bearing. Through a conducting wire, the temperature measuring probe is connected with a thermal resistance detecting element, a smart thermal resistance analog input module, a distributed control system and a display in sequence and can read the numerical value directly. At the same time, alarming can be conducted when the temperature of the bearing reaches up to 95 DEG C by setting. During the first two hours after the motor begins to run, the bearing temperature of the motor needs to be detected frequently and the temperature rise speed detection of the bearing is more valuable than the actual temperature detection of the bearing. Provided that the temperature rise speed of the bearing is excessive, the motor shall be stopped immediately and the bearing shall be examined. The bearing temperature monitoring device can monitor the actual temperature of the bearing and observe the change trends of the bearing temperature; therefore, the bearing temperature monitoring device is conducive to the protection of the safe running of the motor.
Description
Technical field
The utility model relates to a kind of temperature measuring equipment, specifically a kind of high-voltage motor temperature measuring equipment.
Background technology
The high-voltage three-phase asynchronous motor of three circulation-water pump electric machines employings of the 12MW of power ﹠ light company stem-driven turboblower group at present model is Y3555-6.200KW, and the motor bearings at both ends adopts the lubricating oil cooling.This motor is positioned at circulating pump room, and is unattended.In the motor operation course, when patrolling and examining, the steam turbine operator on duty touches or temperature measurer measurement motor bearings temperature with hand.This method is patrolled and examined the actual temperature that untimely and thermometric can not reflect bearing fully, programming rate that simultaneously can not monitoring bearing.High-voltage motor oil level in operational process is improper, oil ring does not change and the reason such as excessive of loading can both cause bearing running hot, as monitors and untimelyly be easy to burn out a bearing and bearing shell, even burns out motor.
Summary of the invention
The utility model is for overcoming above-mentioned the deficiencies in the prior art, and a kind of simple in structure, easy to use, high-voltage motor temperature measuring equipment of detecting in time, can in time detecting actual temperature is provided.
The purpose of this utility model is to adopt following technical proposals to realize: a kind of high-voltage motor temperature measuring equipment, comprise the sealing bolt that is arranged at bearing lower end one side, have an aperture on the sealing bolt, be provided with temperature probe in the aperture, temperature probe is connected with display with thermal resistance detecting element, intelligent thermal resistance simulation amount load module, dcs successively by lead.
Described thermal resistance detecting element is that model is the platinum resistance thermometer sensor, temp probe of WZP-230.
Described intelligent thermal resistance simulation amount load module is FM-143.
Both sides, motor bearings of the present utility model lower end are respectively equipped with overflow vent and sealing bolt, open an aperture on sealing bolt, and temperature probe WZP-230 is fixed on the sealing bolt by aperture, carry out the monitoring bearing temperature.By fore-lying device data-signal is sent to dcs (DCS) and shows bearing temperature by instrument, directly reading numerical values; Simultaneously, can be set to 95 ℃ of warnings by bearing temperature by being provided with.Two hours beginnings of operation, the bearing temperature of inspection motor that need be frequent checks that the programming rate of bearing is more valuable than the actual temperature of checking bearing itself, if the programming rate of bearing is too fast, then should shut down at once, and bearing is checked.Actual temperature that the bearing temperature monitoring device not only can monitoring bearing but also the variation tendency that can observe bearing temperature have been arranged, helped protecting the safe operation of motor.
Description of drawings
Fig. 1 is the utility model structural representation;
Wherein 1. bearings, 2. overflow vent, 3. sealing bolt, 4. temperature probe, 5. thermal resistance detecting element.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Among Fig. 1, have an aperture on the sealing bolt 3, be provided with temperature probe 4 in the aperture, temperature probe 4 is that Pt100 (model WZP-230), FM-143 (intelligent thermal resistance simulation amount load module), DCS (dcs) are connected with display with thermal resistance detecting element 5 by lead successively.
Both sides, motor bearings 1 lower end are respectively equipped with overflow vent 2 and sealing bolt 3, open an aperture on sealing bolt 3, and temperature probe WZP-230 is fixed on the sealing bolt 3 by aperture, carries out the monitoring bearing temperature.By fore-lying device data-signal is sent to DCS and shows bearing temperature by instrument, directly reading numerical values; Simultaneously, can be set to 95 ℃ of warnings by bearing temperature by being provided with.Two hours operation beginnings needed the temperature of the bearing 1 of frequent inspection motor, and the programming rate of checking bearing 1 is more valuable than the actual temperature of checking bearing 1 itself, if the programming rate of bearing 1 is too fast, then should shut down at once, and bearing 1 is checked.Actual temperature that the bearing temperature monitoring device not only can monitoring bearing 1 but also the variation tendency that can observe bearing temperature have been arranged, helped protecting the safe operation of motor.
Claims (3)
1. high-voltage motor temperature measuring equipment, comprise the sealing bolt that is arranged at bearing lower end one side, it is characterized in that: have an aperture on the sealing bolt, be provided with temperature probe in the aperture, temperature probe is connected with display with thermal resistance detecting element, intelligent thermal resistance simulation amount load module, dcs successively by lead.
2. high-voltage motor temperature measuring equipment according to claim 1 is characterized in that: described thermal resistance detecting element is that model is the platinum resistance thermometer sensor, temp probe of WZP-230.
3. high-voltage motor temperature measuring equipment according to claim 1 is characterized in that: described intelligent thermal resistance simulation amount load module is FM-143.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201882752U CN201269788Y (en) | 2008-09-17 | 2008-09-17 | Temperature measuring apparatus for high voltage motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201882752U CN201269788Y (en) | 2008-09-17 | 2008-09-17 | Temperature measuring apparatus for high voltage motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201269788Y true CN201269788Y (en) | 2009-07-08 |
Family
ID=40842395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201882752U Expired - Fee Related CN201269788Y (en) | 2008-09-17 | 2008-09-17 | Temperature measuring apparatus for high voltage motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201269788Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072779A (en) * | 2010-11-17 | 2011-05-25 | 哈尔滨工业大学 | Rotor-groove harmonic analysis based method for identifying temperature of sensorless rotor for submersible motor |
| CN102338667A (en) * | 2010-07-16 | 2012-02-01 | 永济新时速电机电器有限责任公司 | Device and method for detecting temperature of motor bearing |
| CN103234651A (en) * | 2013-05-06 | 2013-08-07 | 无锡盛力达科技股份有限公司 | Temperature monitoring device of high-speed main shaft of large double twisting strander |
-
2008
- 2008-09-17 CN CNU2008201882752U patent/CN201269788Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338667A (en) * | 2010-07-16 | 2012-02-01 | 永济新时速电机电器有限责任公司 | Device and method for detecting temperature of motor bearing |
| CN102338667B (en) * | 2010-07-16 | 2013-08-14 | 永济新时速电机电器有限责任公司 | Device and method for detecting temperature of motor bearing |
| CN102072779A (en) * | 2010-11-17 | 2011-05-25 | 哈尔滨工业大学 | Rotor-groove harmonic analysis based method for identifying temperature of sensorless rotor for submersible motor |
| CN102072779B (en) * | 2010-11-17 | 2011-12-28 | 哈尔滨工业大学 | Rotor-groove harmonic analysis based method for identifying temperature of sensorless rotor for submersible motor |
| CN103234651A (en) * | 2013-05-06 | 2013-08-07 | 无锡盛力达科技股份有限公司 | Temperature monitoring device of high-speed main shaft of large double twisting strander |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090708 Termination date: 20091019 |