CN115235647B - Temperature measurement method for outer body of transformer of nuclear power station - Google Patents
Temperature measurement method for outer body of transformer of nuclear power station Download PDFInfo
- Publication number
- CN115235647B CN115235647B CN202110356891.4A CN202110356891A CN115235647B CN 115235647 B CN115235647 B CN 115235647B CN 202110356891 A CN202110356891 A CN 202110356891A CN 115235647 B CN115235647 B CN 115235647B
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- Prior art keywords
- optical cable
- transformer
- temperature measuring
- laying
- cable
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000009529 body temperature measurement Methods 0.000 title claims description 7
- 230000003287 optical effect Effects 0.000 claims abstract description 52
- 238000003825 pressing Methods 0.000 claims abstract description 28
- 239000003822 epoxy resin Substances 0.000 claims description 11
- 229920000647 polyepoxide Polymers 0.000 claims description 11
- 239000002023 wood Substances 0.000 claims description 11
- 229920001342 Bakelite® Polymers 0.000 claims description 9
- 239000002390 adhesive tape Substances 0.000 claims description 9
- 239000004637 bakelite Substances 0.000 claims description 9
- 239000013307 optical fiber Substances 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 238000011900 installation process Methods 0.000 claims description 3
- 229920006122 polyamide resin Polymers 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
-
- 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
- G01K1/143—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations for measuring surface temperatures
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention discloses a temperature measuring method of an outer body of a transformer of a nuclear power station, which can solve the problems of poor running state of a temperature sensing cable in a severe environment and the like. The method specifically comprises the following steps: step 1: fixing the pressing strip; step 2: laying an optical cable; step 3: and hardware connection. The invention has the beneficial effects that: the invention has the advantages of simple layout, accurate positioning of ignition points, high sensitivity and long service life.
Description
Technical Field
The invention belongs to a temperature measurement method, and particularly relates to a temperature measurement method for an outer body of a transformer of a nuclear power station.
Background
The traditional temperature measurement means of the transformer area of the existing nuclear power station is to fix the temperature sensing cable on a fire fighting water pipe of the transformer or to use a steel wire rope or a bracket to overhead fix the temperature sensing cable around the transformer, so that a certain distance is reserved between the detector and the transformer body, and the alarm can be realized even after the temperature of the transformer reaches very high and is conducted to the temperature sensing cable through air and a fire disaster occurs. Meanwhile, the temperature sensing cable is arranged in a humid environment area, and fire alarm and faults are easy to be misreported due to the fact that the terminal is wetted.
Disclosure of Invention
The invention aims to provide a temperature measuring method for an outer body of a transformer of a nuclear power station, which can solve the problems of poor running state of a temperature sensing cable in a severe environment and the like.
The technical scheme of the invention is as follows: a temperature measurement method of an outer body of a transformer of a nuclear power station comprises the following steps:
Step 1: fixing the pressing strip;
step 2: laying an optical cable;
step 3: and hardware connection.
The step 1 includes the steps of,
Step 11: epoxy resin and polyamide resin curing agent were mixed in an amount of 1:1, placing for 10 minutes after blending, and waiting for the epoxy resin to slightly solidify;
step 12: removing dust on the surface of the adhered transformer outer body by using a dry rag, uniformly coating epoxy resin on the surface of an bakelite batten, and flatly adhering the batten to the surface of the transformer;
step 13: covering the whole bakelite pressing strip by using a reticulate adhesive tape, and completely fitting and sticking the reticulate adhesive tape with the surface of the transformer along the lower edge of the pressing strip;
Step 14: repeating the steps 11-13, and uniformly fixing the electric wood pressing strips on four sides of the outer body of the transformer and the conservator;
step 15: the fixed interval is reduced at the turn, increases the layering quantity, ensures contact laying effect and firmness.
The step 2 of the method comprises the steps of,
Step 21: curing for more than 24 hours after fixing the electric wood pressing strips, and laying the optical cable;
Step 22: the optical cables are gently buckled into the slotting positions of the pressing strips, two optical cables can be laid simultaneously, one optical cable is ready for use, and one optical cable can be laid by using one slotting;
Step 23: the surface of each optical cable is printed with a meter mark, and the meter marks at the head and tail ends, the welding points, the reserved rings and the key points on the transformer of each optical cable are recorded in detail for geographic map configuration during laying;
Step 24: in the optical cable installation process, a downward pulling force of about 2kg is applied to the electric wood pressing bar to carry out adhesion firmness test, so that falling caused by uneven smearing or other reasons is avoided, if the situation is found, the electric wood is peeled off and recorded, then the optical cable is continuously paved downwards, the optical cable can be temporarily fixed on a transformer by using an adhesive tape at the peeling position of the pressing bar so as to avoid interrupting the laying process, and after batch laying workload is finished, the peeling pressing bar is fed up.
The step 3 includes the steps of,
The optical fiber temperature measuring host is arranged between devices, the armored temperature measuring optical cable is sequentially paved to the transformer along the cable bridge and the cable trench from the optical fiber temperature measuring host, the armored temperature measuring optical cable is internally provided with the stainless steel sleeve and the stainless steel woven mesh, the armored temperature measuring optical cable has more mechanical resistance, is more suitable for the laying modes such as pipe penetrating and wall passing, and the like, the tail end of the armored temperature measuring optical cable is welded with the silica gel temperature measuring optical cable at the transformer, and the hardware connection work is completed.
The invention has the beneficial effects that: the invention has the advantages of simple layout, accurate positioning of ignition points, high sensitivity and long service life.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
In order to solve the problem that the temperature sensing cable is poor in running state under severe environment and also to reduce factors such as air circulation and heat conduction time as much as possible to influence the accuracy of temperature detection, and meanwhile, considering that the transformer is a high-voltage electrified body and has certain limitation on halogen-containing materials, metal materials and the like, the invention provides a mounting method capable of tightly attaching an optical cable to an outer body of the transformer.
The temperature measuring method of the outer body of the transformer of the nuclear power station realizes accurate and rapid temperature detection and fire alarm through contact detection, can quickly respond to the abnormal temperature of the transformer and prevent the abnormal temperature, and specifically comprises the following steps:
Step 1: pressing bar fixing
Step 11: epoxy resin and polyamide resin curing agent were mixed in an amount of 1:1, after the epoxy resin is blended, standing for 10 minutes, and waiting for the epoxy resin to be slightly solidified, wherein the blended epoxy resin is preferably used up within 30 minutes;
Step 12: removing dust on the surface of the adhered transformer outer body by using a dry rag, uniformly coating epoxy resin on the surface of a bakelite batten, and flatly adhering the batten to the surface of the transformer, wherein the periphery of the batten is suitable for the leakage of slightly glue;
step 13: covering the whole bakelite batten by using a reticulate adhesive tape, and completely adhering the reticulate adhesive tape along the lower edge of the batten and the surface of the transformer, wherein the other 3 surfaces do not need to be operated in this way;
Step 14: repeating the steps, and uniformly fixing the electric wood pressing strips on four sides of the outer body of the transformer and the conservator at intervals of 1 meter;
step 15: the fixed interval can be reduced at the turning position, the using amount of the pressing strips is increased, and the contact type laying effect and firmness are ensured.
Step 2: optical cable laying
Step 21: after the bakelite batten is fixed, the fixation of the batten is carried out for more than 24 hours, and then the optical cable is laid, so that the fixing effect of the batten reaches the optimal state;
Step 22: the optical cable is gently buckled into the slotting position of the pressing strip, the pressing strip used in the method has two slotting, two optical cables can be laid simultaneously, one optical cable is ready for use, and one optical cable can be laid by using one slotting;
Step 23: the surface of each optical cable is printed with a meter mark, and the meter marks at the head and tail ends, the welding points, the reserved rings and the key points on the transformer of each optical cable are recorded in detail for geographic map configuration during laying;
Step 24: in the optical cable installation process, a downward pulling force of about 2kg is applied to the electric wood pressing bar to carry out adhesion firmness test, so that falling caused by uneven smearing or other reasons is avoided, if the situation is found, the electric wood is peeled off, a record is made, then the optical cable is continuously paved downwards, and the optical cable can be temporarily fixed on a transformer by using an adhesive tape at the peeling position of the pressing bar so as to avoid interrupting the laying flow. And after the batch laying workload is finished, the layering at the peeling part is fed. It is recommended that the laying work of the previous day be checked and maintained the next day after laying.
Step 3: hardware connection
The optical fiber temperature measuring host is arranged between devices, and the armored temperature measuring optical cable is paved at the transformer along the cable bridge and the cable trench from the optical fiber temperature measuring host. The armored temperature measuring optical cable is internally provided with the stainless steel sleeve and the stainless steel woven mesh, has better mechanical resistance, and is more suitable for laying modes such as pipe penetrating and wall passing. The tail end of the armored temperature measuring optical cable is welded with the silica gel temperature measuring optical cable at the transformer, and the hardware connection work is completed.
The invention is completely suitable for being in contact with the transformer body by customizing the non-armored silica gel optical cable and the bakelite batten without metal and high temperature resistance; the temperature measuring precision of the temperature sensing optical cable can be improved to the greatest extent through the contact installation with the transformer body, and the response speed and the reliability of the optical fiber temperature measuring system can be improved; the clamping groove design of the bakelite pressing strip can facilitate the transformer to detach the optical cable when the transformer is maintained, and the optical cable is fixed again after maintenance, so that the material waste and the construction cost are reduced.
Claims (1)
1. The temperature measurement method of the outer body of the transformer of the nuclear power station is characterized by comprising the following steps of:
Step 1: fixing the pressing strip;
the step 1 includes the steps of,
Step 11: epoxy resin and polyamide resin curing agent were mixed in an amount of 1:1, placing for 10 minutes after blending, and waiting for the epoxy resin to slightly solidify;
step 12: removing dust on the surface of the adhered transformer outer body by using a dry rag, uniformly coating epoxy resin on the surface of an bakelite batten, and flatly adhering the batten to the surface of the transformer;
step 13: covering the whole bakelite pressing strip by using a reticulate adhesive tape, and completely fitting and sticking the reticulate adhesive tape with the surface of the transformer along the lower edge of the pressing strip;
Step 14: repeating the steps 11-13, and uniformly fixing the electric wood pressing strips on four sides of the outer body of the transformer and the conservator;
Step 15: the fixed distance is reduced at the turning part, the using amount of the pressing strips is increased, and the contact type laying effect and firmness are ensured;
step 2: laying an optical cable;
step 21: curing for more than 24 hours after fixing the electric wood pressing strips, and laying the optical cable;
Step 22: the optical cables are gently buckled into the slotting positions of the pressing strips, two optical cables can be laid simultaneously, one optical cable is ready for use, and one optical cable can be laid by using one slotting;
Step 23: the surface of each optical cable is printed with a meter mark, and the meter marks at the head and tail ends, the welding points, the reserved rings and the key points on the transformer of each optical cable are recorded in detail for geographic map configuration during laying;
Step 24: in the optical cable installation process, applying a pull-down force of about 2kg to the electric wood pressing bar to carry out a pasting firmness test, ensuring that falling caused by uneven coating or other reasons does not exist, if the situation is found, peeling off the electric wood, recording, then continuously paving the optical cable downwards, temporarily fixing the optical cable on a transformer by using an adhesive tape at the peeling position of the pressing bar so as to avoid interrupting the laying process, and after batch laying workload is finished, then feeding the pressing bar at the peeling position;
step 3: hardware connection;
the step 3 includes the steps of,
The optical fiber temperature measuring host is arranged between devices, the armored temperature measuring optical cable is sequentially paved to the transformer along the cable bridge and the cable trench from the optical fiber temperature measuring host, the stainless steel sleeve and the stainless steel woven mesh are arranged in the armored temperature measuring optical cable, the tail end of the armored temperature measuring optical cable is welded with the silica gel temperature measuring optical cable at the transformer, and the hardware connection work is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110356891.4A CN115235647B (en) | 2021-04-01 | 2021-04-01 | Temperature measurement method for outer body of transformer of nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110356891.4A CN115235647B (en) | 2021-04-01 | 2021-04-01 | Temperature measurement method for outer body of transformer of nuclear power station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115235647A CN115235647A (en) | 2022-10-25 |
| CN115235647B true CN115235647B (en) | 2024-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110356891.4A Active CN115235647B (en) | 2021-04-01 | 2021-04-01 | Temperature measurement method for outer body of transformer of nuclear power station |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110044400A (en) * | 2019-04-30 | 2019-07-23 | 华北电力大学（保定） | A kind of wiring method of distribution type fiber-optic on transformer Continuous winding |
| CN112345117A (en) * | 2020-11-09 | 2021-02-09 | 华能通辽风力发电有限公司 | Method for monitoring temperature of cable in fan based on optical fiber sensor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202221693U (en) * | 2011-08-22 | 2012-05-16 | 三变科技股份有限公司 | Fiber temperature measurement transformer |
| CN204424032U (en) * | 2015-01-27 | 2015-06-24 | 中国能源建设集团葫芦岛电力设备有限公司 | Distributed optical fiber temperature measurement intelligent transformer |
| CN207458278U (en) * | 2017-09-06 | 2018-06-05 | 福建宁德核电有限公司 | A kind of hot spot detection system and its cable linear temperature sensing cable |
| CN212513386U (en) * | 2020-06-17 | 2021-02-09 | 西安睿光智芯光电科技有限公司 | Multifunctional optical fiber temperature control device for dry-type transformer |
| CN112578520A (en) * | 2020-12-29 | 2021-03-30 | 麻城辅创科技有限公司 | Fixing method of temperature-sensing optical cable for pipeline |
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2021
- 2021-04-01 CN CN202110356891.4A patent/CN115235647B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110044400A (en) * | 2019-04-30 | 2019-07-23 | 华北电力大学（保定） | A kind of wiring method of distribution type fiber-optic on transformer Continuous winding |
| CN112345117A (en) * | 2020-11-09 | 2021-02-09 | 华能通辽风力发电有限公司 | Method for monitoring temperature of cable in fan based on optical fiber sensor |
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| Publication number | Publication date |
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| CN115235647A (en) | 2022-10-25 |
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