CN113465776A - Power equipment temperature sensor convenient to replace and monitoring method thereof - Google Patents
Power equipment temperature sensor convenient to replace and monitoring method thereof Download PDFInfo
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- CN113465776A CN113465776A CN202110506716.9A CN202110506716A CN113465776A CN 113465776 A CN113465776 A CN 113465776A CN 202110506716 A CN202110506716 A CN 202110506716A CN 113465776 A CN113465776 A CN 113465776A
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000012544 monitoring process Methods 0.000 title claims abstract description 10
- 238000009434 installation Methods 0.000 claims abstract description 24
- 239000000523 sample Substances 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims description 8
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 6
- 229920002530 polyetherether ketone Polymers 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 3
- 239000004809 Teflon Substances 0.000 claims description 3
- 229920006362 Teflon® Polymers 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 230000008595 infiltration Effects 0.000 claims description 3
- 238000001764 infiltration Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 2
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 claims 2
- 238000009529 body temperature measurement Methods 0.000 abstract description 7
- 230000006378 damage Effects 0.000 abstract description 3
- 238000004804 winding Methods 0.000 description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 11
- 210000004907 gland Anatomy 0.000 description 7
- 239000000945 filler Substances 0.000 description 6
- 239000013307 optical fiber Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 235000012771 pancakes Nutrition 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 238000004092 self-diagnosis Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
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- General Physics & Mathematics (AREA)
Abstract
The invention provides a conveniently replaced temperature sensor for power equipment and a monitoring method thereof, and the conveniently replaced temperature sensor comprises a lead, a temperature probe, a connector, a guide pipe and a fastener, wherein the temperature probe is arranged at the front end of the lead, the connector is arranged at the tail end of the lead, the temperature probe and the connector form the temperature sensor, a lead installation cavity is arranged in the guide pipe, one end of the lead, which is provided with the temperature probe, is inserted into the lead installation cavity of the guide pipe, the fastener is arranged at the joint of the guide pipe and the lead, and the fastener is a relative position fixing structure of the guide pipe and the lead or the connector, and the conveniently replaced temperature sensor has the advantages that: the structure combination is nimble changeable, applicable in various power equipment temperature measurement environment, installs temperature sensor in power equipment's temperature measurement environment through the guiding tube, can directly change fast during the change install in the guiding tube the temperature sensor part can, need not to dismantle power equipment's part, can not cause harm, convenient and fast to power equipment.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to a temperature sensor and a monitoring method thereof, in particular to a power equipment temperature sensor convenient to replace and a monitoring method thereof.
[ background of the invention ]
The power equipment can generate certain heat in the running process, the heat productivity can be judged by temperature, abnormal heating is generally caused by overload, increased resistance of a conductor or poor contact, and the abnormal heating is generally the root cause of accidents; therefore, monitoring the operating temperature of the equipment is a main index for judging the operating state of the equipment, and the exceeding of the temperature of large-scale power equipment such as a generator and a transformer can not only reduce the service life of the equipment, but also cause accidents, so that real, accurate and real-time temperature data is very important.
The transformer generally monitors the temperature of a winding and an iron core, the generator generally monitors the temperature of a stator bar, the iron core, a pressure finger, a rotor magnetic pole, a collector ring and other positions, and in order to obtain accurate and real-time temperature, a sensor is generally in direct contact with a heating point; the method is characterized in that the sensor is clamped into a cushion block, then the cushion block is directly placed between two windings or on the surface of an iron core, and the temperature of a generator stator is measured by using a commonly used thermal resistor, but the thermal resistor has the tendency of being gradually eliminated due to the advantages of insulation, interference resistance, self-diagnosis and the like of the optical fiber temperature sensor; in both thermal resistance and optical fiber measurement, the method is realized by replacing a gasket at a hot spot position with a gasket with a preset sensor.
The technical scheme is the general prior art in the market, the installation mode and the measurement are not problematic, but the sensor is difficult to replace, a winding, a coil bar or a fixing piece needs to be detached for replacement, the replacement operation consumes labor and time, the detachment and the installation can cause certain damage to equipment, and the replacement can be carried out only when the equipment is overhauled.
[ summary of the invention ]
The invention aims to solve the problems existing in the temperature monitoring of large-scale power equipment in the current market, and provides a conveniently-replaced power equipment temperature sensor and a monitoring method thereof.
The invention is realized by the following technical scheme: the utility model provides a convenient power equipment temperature sensor who changes, includes wire, temperature probe, connector, the wire front end is equipped with temperature probe, the wire end is equipped with the connector, temperature sensor is constituteed to wire, temperature probe and connector, including guiding tube, fastener, be equipped with wire installation chamber in the guiding tube and say, the wire is equipped with in the wire installation chamber that the one end of temperature probe inserted the guiding tube is said to the wire, the guiding tube is equipped with the fastener with the junction of wire, the fastener is the relative position fixed knot of guiding tube and wire or connector constructs.
Further, the guide tube and the fastener are of an integral structure or a separate structure.
Furthermore, the guiding tube is a structure with an opening at one end, the shape of the guiding tube can be a flexible tubular structure or a hard groove-shaped structure or a hollow sheet-shaped fixed seat or a mixed structure with a hard groove-shaped front end and a flexible tube-shaped rear end, and the guiding tube and the fastening piece can be made of heat-resistant, heat-resistant and insulating Teflon or other fluorine materials, heat-resistant and insulating resin materials or PEEK or heat-resistant metal materials.
Further, the tube wall of the guide tube can be provided with an opening which needs vacuum pumping or liquid infiltration.
Further, a filler corresponding to the shape of the wire installation channel of the guide tube and ensuring that the shape of the wire installation channel of the guide tube is not affected when the guide tube is arranged may be inserted into the guide tube before the temperature sensor is inserted into the guide tube.
A method for monitoring a temperature sensor of power equipment convenient to replace comprises the following specific steps:
s1, when the temperature sensor is installed, the guide tube is arranged in a temperature measuring environment, after the guide tube is completely firm, the temperature sensor consisting of the guide wire, the temperature probe and the connector penetrates through the opening end of the guide tube, and after the temperature sensor penetrates in place, the guide wire or the connector of the temperature sensor is fixed with the guide tube through the fastening piece, so that installation is completed;
s1-1, in order to ensure that the lead installation cavity inside the guide tube is not affected during arrangement, a filling piece corresponding to the shape of the lead installation cavity can be additionally added, the filling piece is firstly inserted into the lead installation cavity when the guide tube is arranged, and when a temperature sensor needs to be installed, the filling piece is taken out and then penetrates into the temperature sensor main body;
s1-2, arranging an in-place mark outside the sensor lead, and conveniently observing whether the sensor is inserted in place or not through the in-place mark;
s2, when the temperature sensor is replaced, the fastener is loosened or taken down, the temperature sensor to be replaced is taken down, a new temperature sensor with the same length is inserted, after the new temperature sensor is inserted in place, the lead or the connector of the temperature sensor is fixed with the guide tube through the fastener, and replacement is completed.
The invention has the beneficial effects that: the structure combination is nimble changeable, and applicable in various power equipment's temperature measurement environment installs temperature sensor in power equipment's temperature measurement environment through the guiding tube, can directly change fast during the change install in the guiding tube the temperature sensor part can, need not to dismantle power equipment's part, can not cause harm, convenient and fast to power equipment.
[ description of the drawings ]
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a guide tube of the present invention having a front end rigid groove-like and a rear end flexible tubular hybrid structure;
FIG. 3 is a schematic view of a guide tube of the present invention in a tubular configuration with an opening;
FIG. 4 is an exploded view of FIG. 3 of the present invention;
FIG. 5 is a schematic structural view of an oil immersed transformer according to the present invention;
FIG. 6 is a schematic structural diagram of a pancake oil-immersed transformer winding according to the present invention;
FIG. 7 is a schematic structural view of a winding of a cylindrical oil-immersed transformer according to the present invention;
FIG. 8 is a schematic structural view of a guide tube of the present invention in the form of a slotted plate;
FIG. 9 is an exploded view of FIG. 8 of the present invention;
FIG. 10 is a schematic view of the gland structure of the present invention;
FIG. 11 is a schematic structural view of a generator body to which the present invention is applied;
FIG. 12 is a schematic diagram of a generator core structure applied to a generator body according to the present invention;
FIG. 13 is a schematic view of a stator bar structure of the present invention applied to a generator body;
FIG. 14 is a schematic view of the present invention with the addition of an access tube;
FIG. 15 is an exploded view of the present invention with the addition of an access tube;
FIG. 16 is a cross-sectional view of a guide tube and fastener of the present invention configured as a one-piece circular hollow tube;
FIG. 17 is a schematic structural view of a guide tube of the present invention designed as a hollow sheet;
FIG. 18 is an exploded view of FIG. 17 in accordance with the present invention;
FIG. 19 is a cross-sectional view of a guide tube of the present invention configured as a hollow sheet;
FIG. 20 is a schematic view of a sheet type guide tube of the present invention with multiple temperature sensors mounted thereon;
reference numerals: 1. a wire; 2. a temperature probe; 3. a connector; 4. a guide tube; 41. opening a hole; 5. a fastener; 51. a pin; 52. a gland; 6. a tail sleeve; 7. an access tube fastener; 8. an access tube; 100. a temperature sensor; 200. an oil immersed transformer winding assembly; 201. a winding; 202. an iron core; 300. a stator and a rotor of the generator; 301. a generator core; 302. a stator bar;
[ detailed description ] embodiments
The invention is further described with reference to the accompanying drawings and the detailed description:
as shown in fig. 1 and 2, a power equipment temperature sensor convenient to replace comprises a lead 1, a temperature probe 2, a connector 3, a guide tube 4 and a fastener 5, wherein the temperature probe 2 is arranged at the front end of the lead 1, the connector 3 is arranged at the tail end of the lead 1, the temperature sensor 100 is formed by the lead 1, the temperature probe 2 and the connector 3, a lead installation cavity is arranged in the guide tube 4, one end of the lead 1, provided with the temperature probe 2, is inserted into the lead installation cavity of the guide tube 4, the fastener 5 is arranged at the joint of the guide tube 4 and the lead 1, and the fastener 5 is a relative position fixing structure of the guide tube 4 and the lead 1 or the connector 3.
Preferably, the guide tube 4 and the fastener 5 are of a unitary or separate construction.
Preferably, the guiding tube 4 is a structure with an opening at one end, the guiding tube 4 can be a flexible tubular structure or a hard groove-shaped structure or a hollow sheet-shaped fixing seat or a mixed structure with a hard groove-shaped front end and a flexible tube-shaped rear end, and the guiding tube 4 and the fastening piece 5 can be made of heat-resistant, heat-resistant and insulating teflon or other fluorine materials, heat-resistant and insulating resin materials or PEEK or heat-resistant metal materials.
Preferably, the wall of the guide tube 4 may be provided with an opening 41 for vacuum or liquid infiltration.
Preferably, a filler corresponding to the shape of the wire installation channel of the guide tube 4, which ensures that the shape of the wire installation channel of the guide tube 4 is not affected when the guide tube 4 is disposed, may be inserted into the guide tube 4 before the temperature sensor 100 is inserted.
The first embodiment,
Insulating oil is filled inside and outside the oil-immersed transformer winding assembly 200, generally, the voltage level is high, direct hot spot measurement on the winding 201 can only adopt a mode of an optical fiber temperature sensor, in order to ensure the insulating effect and the electrical property, a PTFE tube is selected as the guide tube 4 in the embodiment, and the tube wall is provided with an opening 41 to ensure the good fluidity of the insulating oil, and the structure is shown in FIG. 3;
before use, the guide tube 4 and the fastener 5 are detached and placed (the guide tube and the fastener can be loosened integrally), as shown in fig. 4, one end of the guide tube 4 is closed, and the other end is provided with an opening for fixing the window by the fastener 5;
then, according to the requirement of temperature measurement, when the winding 201 is produced, the guide tube 4 is arranged at the position to be measured of the winding 201, as shown in fig. 6, the guide tube 4 can be arranged between a second cake and a third cake on the upper part of the internal high-voltage winding by the cake winding, and is led out from a gap between the iron core 202 and the winding 201 after being wrapped by the winding 201 and insulating paper upwards and fixed on the side surface of the iron core 202; as shown in fig. 7, the tube winding can arrange the guide tube 4 between two tube windings, and the guide tube is led out from the gap between the iron core 202 and the winding 201 after passing through the winding 201 and the insulation paper, and fixed on the side of the iron core 202; as shown in fig. 5, the temperature sensor 100 is inserted into the guide tube 4, and after the temperature sensor is pushed to the top end of the guide tube 4 to a certain position, the temperature sensor 100 and the guide tube 4 are locked and positioned by the fastener 5 (in actual use, a plurality of temperature sensors are arranged, and only one temperature sensor is arranged in this embodiment as an illustration).
Example II,
The sensor is fixed in the generator stator and rotor 300 by using the structure of FIG. 8, a fastener 5 is composed of a pin 51 and a gland 52, a guide pipe 4 is made of epoxy resin fiberboard, a guide groove is machined in the board, the section of the groove can be round or rectangular, the radial direction can be straight line or curve, a hole which is matched with the gland 52 in the direction is formed in the top end, two pins 51 are used between the gland 52 and the guide pipe 4 to fix the temperature sensor 100 on the guide groove, the bottom of the gland 52 is provided with a groove-shaped fixing structure which is consistent with the width of a lead 1 and is provided with a pressure tooth, two sides of the gland are provided with penetrating holes, the diameter of the penetrating holes is smaller than the size of the pins 51, the pins 51 cannot fall off after being pressed, and the matching mode of the pins 51 and the penetrating holes can also be a screw connection mode of screws and nuts;
as shown in fig. 9 and 10, the guide groove and the fixing structure are removed before the sensor is used; as shown in fig. 12, the guiding slot is fixed on the generator core 301 according to the temperature measurement requirement; as shown in fig. 13, the guiding slot is fixed on the stator bar 302 according to the temperature measurement requirement; after the placement is complete, as shown in FIG. 11.
Example III,
As shown in fig. 14 and 15, when the sensor needs to have a longer penetration length, the penetration portion at the front end of the sensor can be designed as an insertion tube, taking an optical fiber temperature sensor as an example, the sensor body includes: the sensor comprises a connector 3, a lead 1, a tail sleeve 6, an intervention tube fastener 7, an intervention tube 8 and a temperature probe 2, wherein the tail sleeve 6 and the intervention tube fastener 7 are added at the front end of the lead 1, the intervention tube 8 is added at the front end of the intervention tube fastener 7, the intervention tube 8 can be made of PTFE (polytetrafluoroethylene), PEEK (polyetheretherketone), epoxy resin tubes and the like, the temperature probe 2 is arranged at the top end of the intervention tube 8, the intervention tube 8 has the same function as the lead 1, and a guide tube 4 matched with the sensor body is designed according to different scenes during use;
in order to prevent the guide cavity from deforming when the guide tube 4 is arranged, a filling piece can be additionally added, the diameter of the filling piece is the same as that of the intervention tube 8, the intervention tube fastening piece 7 can be matched with the fastening piece 5 of the guide tube 4, the filling piece is pre-arranged when the guide tube 4 is arranged, and the filling piece is extracted when the temperature sensor 100 needs to be arranged, replaced by the temperature sensor 100 provided with the intervention tube 8 and fixed;
in a scene (such as a generator iron core) needing embedded installation, the guide tube 4 and the fastener 5 can be designed into an integrated round hollow tube shape, the guide tube and the filler are firstly embedded into the iron core when the temperature sensor 100 is arranged, and the filler is extracted at a subsequent proper time and then replaced into a sensor main body and fixed;
figure 16 is a cross-sectional view of a circular guide tube 4 containing a main channel of slightly larger diameter than access tube 8 and an adapter port for mating with access tube fastener 7.
As shown in fig. 17 and 18, when surface mounting (such as a generator pressure finger, a bus ring, and a damping bar) or clamping mounting (such as a stator bar and a rotor excitation coil) is required, the guide tube 4 may be designed to be a hollow plate structure, the guide tube 4 and the filler are fixed to a position to be measured, and then the filler is drawn out and replaced with the temperature sensor 100;
figure 19 is a cross-sectional view of a guide tube 4 in sheet form, having a main channel of slightly larger diameter than the access tube 8 and an adapter port for engagement with the access tube fastener 7;
as shown in fig. 20, when a plurality of temperature sensors 100 are required to be installed at the same position, a plurality of channels may be formed in one guide tube 4 and the plurality of temperature sensors 100 may be correspondingly penetrated.
Appropriate changes and modifications to the embodiments described above will become apparent to those skilled in the art from the disclosure and teachings of the foregoing description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (6)
1. The utility model provides a convenient power equipment temperature sensor who changes, includes wire, temperature probe, connector, the wire front end is equipped with temperature probe, the wire end is equipped with the connector, temperature sensor, its characterized in that are constituteed to wire, temperature probe and connector: the temperature probe is arranged in the guide tube, one end of the wire, which is provided with a temperature probe, is inserted into the wire installation cavity of the guide tube, the connecting part of the guide tube and the wire is provided with a fastener, and the fastener is a relative position fixing structure of the guide tube and the wire or a connector.
2. The electrical equipment temperature sensor convenient to replace according to claim 1, wherein: the guide tube and the fastener are of an integrated structure or a separated structure.
3. The electrical equipment temperature sensor convenient to replace according to claim 1, wherein: the utility model discloses a temperature-resistant, including guiding tube, fastener, guiding tube, leading tube, fastener, temperature-resistant insulating resin material or PEEK, the metal material of temperature-resistant, the guiding tube is that one end is equipped with open-ended structure, the guiding tube shape can be flexible tubular structure or stereoplasm slot-like structure or cavity slice form fixing base or the mixed structure of preceding end stereoplasm slot-like, the flexible tubulose in rear end, the material of guiding tube and fastener can be temperature-resistant heat-resistant insulating teflon or other fluorine materials, temperature-resistant insulating resin material or PEEK, temperature-resistant metal material.
4. The electrical equipment temperature sensor convenient to replace according to claim 3, wherein: the wall of the guide tube can be provided with an opening which needs vacuum pumping or liquid infiltration.
5. The electrical equipment temperature sensor convenient to replace according to claim 1, wherein: before the temperature sensor is inserted into the guide tube, a filling piece which corresponds to the shape of the guide wire installation cavity of the guide tube and ensures that the shape of the guide wire installation cavity of the guide tube is not influenced when the guide tube is arranged can be inserted.
6. A method for monitoring a temperature sensor of power equipment convenient to replace is characterized by comprising the following specific steps:
s1, when the temperature sensor is installed, the guide tube is arranged in a temperature measuring environment, after the guide tube is completely firm, the temperature sensor consisting of the guide wire, the temperature probe and the connector penetrates through the opening end of the guide tube, and after the temperature sensor penetrates in place, the guide wire or the connector of the temperature sensor is fixed with the guide tube through the fastening piece, so that installation is completed;
s1-1, in order to ensure that the lead installation cavity inside the guide tube is not affected during arrangement, a filling piece corresponding to the shape of the lead installation cavity can be additionally added, the filling piece is firstly inserted into the lead installation cavity when the guide tube is arranged, and when a temperature sensor needs to be installed, the filling piece is taken out and then penetrates into the temperature sensor main body;
s1-2, arranging an in-place mark outside the sensor lead, and conveniently observing whether the sensor is inserted in place or not through the in-place mark;
s2, when the temperature sensor is replaced, the fastener is loosened or taken down, the temperature sensor to be replaced is taken down, a new temperature sensor with the same length is inserted, after the new temperature sensor is inserted in place, the lead or the connector of the temperature sensor is fixed with the guide tube through the fastener, and replacement is completed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110506716.9A CN113465776B (en) | 2021-05-10 | 2021-05-10 | Power equipment temperature sensor convenient to replace and monitoring method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110506716.9A CN113465776B (en) | 2021-05-10 | 2021-05-10 | Power equipment temperature sensor convenient to replace and monitoring method thereof |
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| CN113465776A true CN113465776A (en) | 2021-10-01 |
| CN113465776B CN113465776B (en) | 2024-09-20 |
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