CN203274937U - High-voltage electrical-equipment passive interval type temperature monitoring device - Google Patents
High-voltage electrical-equipment passive interval type temperature monitoring device Download PDFInfo
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- CN203274937U CN203274937U CN 201320297814 CN201320297814U CN203274937U CN 203274937 U CN203274937 U CN 203274937U CN 201320297814 CN201320297814 CN 201320297814 CN 201320297814 U CN201320297814 U CN 201320297814U CN 203274937 U CN203274937 U CN 203274937U
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Abstract
The utility model discloses a high-voltage electrical-equipment passive interval type temperature monitoring device. In the utility model, a whole system is realized based on a physical method. A low voltage power supply is avoided to be used. A cold light source enters into a passive temperature measurement module, then reaches to a condensed light convex lens through reflection of a mercury liquid level of a mercurial thermometer, and is transmitted to a temperature interval detection fiber through condensation and then reaches to a monitoring alarm module so as to carry out temperature display and alarm. Therefore, interval type temperature monitoring is realized. Different temperatures correspond to different heights of the mercury liquid levels so that the condensed light convex lens is divided into three temperature areas. When the reflected light beam reaches to the assigned condensed light convex lens, a control terminal converts a optical signal into an electric signal so as to trigger a detection alarm module. Operation of the device of the utility model is simple and safety performance is high. The device is mainly used for temperature monitoring of a high-voltage bus soldering point of a power plant and a transformer substation.
Description
Technical field
The utility model belongs to electric light temperature survey field, is specifically related to the passive interval type device for detecting temperature of a kind of high voltage electric equipment.
Background technology
The high-tension switch cabinet of generating plant, transformer station and bus are important high voltage electric equipments, are in for a long time under high voltage, large electric current and fully loaded condition to move.Electrical equipment adopts enclosed construction, and radiating effect is poor, superheating phenomenon can occur under device contact loose contact, excess current or other abnomal condition, processes as untimely discovery, finally may cause security incident.Therefore, the electrical equipment temperature monitoring problem has become in electric system electrical equipment safe operation institute urgent problem.
Be in due to high voltage electric equipment in the particular surroundings of high voltage, large electric current and high-intensity magnetic field, require to carry out between monitoring target and device for detecting temperature the voltage isolation, so the low-voltage power supply of device for detecting temperature is more insoluble problem always.
At present, the conventional temp measuring method of traditional some is difficult to be fit to the requirement of high voltage electric equipment particular surroundings.In this field, the technical scheme of device for detecting temperature has following a few class: the difference that realization provides according to energy, high-tension apparatus power supply (utilize the transformer pressure-reducing power taking, perhaps utilize the electromagnetic induction power taking), external power supply mode (powered battery or external low-voltage supply line) and three kinds of methods of passive measurement are arranged; Different according to temperature survey, there are colour atla thermometric, infrared measurement of temperature and three kinds of modes of temperature sensor thermometric; Different according to information transmission mode, have passive, wireless and three kinds of communication modes of optical fiber.
On July 20th, 2011 is disclosed, and publication number is to disclose a kind of " a kind of system for monitoring temperature of high voltage equipment " in the Chinese patent of CN102129765A, it is characterized in that system power supply adopts electromagnetic induction to obtain electric energy, and temperature detection adopts the wireless temperature monitoring technology.And bus adopts the sealing mode to carry out electromagnetic screen and protection more at present, and system for detecting temperature can't obtain induction electric energy, and has the voltage isolating problem, so there is certain application restric-tion in the method.
On August 10th, 2011 is disclosed, publication number is to disclose a kind of " infrared imaging temperature-monitoring method and system " in the Chinese patent of CN102147290A, it is characterized in that utilizing one or more infrared thermal imagery instrument probes, be used for catching the infrared imaging data of monitored target.There is certain application restric-tion in the method, can't detect high-tension switch cabinet contact and sealing high voltage bus, and can't realize the integrated of high-tension apparatus and temperature detection.
On September 10th, 2003 is disclosed, publication number is to disclose a kind of " high-voltage switch gear, bus temperature detection system and method for supplying power to thereof " in the CN1441541A Chinese patent, it is characterized in that system power supply adopts isolating transformer, high pressure is carried out step-down, by rectification, be filtered into low-voltage dc power supply; Temperature detection adopts temperature sensor.The problems such as the method exists the feed circuit complexity, and the device withstand voltage class requirement is high, and equipment frock is restricted.
On January 25th, 2012 is disclosed, publication number is to disclose a kind of " the Fiber Bragg Grating Temperature monitoring device of high voltage power cable intermediate head " in the Chinese patent of CN102331312A, it is characterized in that utilizing the Fiber Bragg Grating Temperature sensor to realize the passive measurement of temperature, adopt such optical fiber distributed type thermometry, can not be subjected to the interference of high pressure and environment, but it is larger to exist the difficulty that connects up in electrical equipment, the problems such as apparatus expensive.
Summary of the invention
The technical matters that the utility model solves has been to provide the passive interval type device for detecting temperature of a kind of high voltage electric equipment, and this device need not to specialize in power supply, realizes passive thermometric, optical fiber transmission of information, anti-strong electromagnetic.
The technical solution of the utility model is: the passive interval type device for detecting temperature of a kind of high voltage electric equipment, mainly comprise passive temperature measurement module, connect optical fiber group and monitoring, alarming module, wherein passive temperature measurement module is connected by being connected the optical fiber group with the monitoring, alarming module, it is characterized in that: described passive temperature measurement module mainly is comprised of housing, incident light collimation lens, mercury thermometer, conducting metal groove, taper light shield and optically focused convex lens, and wherein mercury thermometer and conducting metal groove form passive temperature probe; Described connection optical fiber group is comprised of four optical fiber, wherein three is the temperature range detection fiber, other one is incident optical, described temperature range detection fiber is connected with the taper light shield, this taper light shield inside is placed with the optically focused convex lens, incident optical is connected with the incident light collimation lens, and the collimation incident beam that imports by incident optical is mapped to and forms folded light beam on the mercury liquid level incident optical and temperature range detection fiber are connected as a single entity; Described monitoring, alarming module is comprised of Photoelectric Detection module, laser generation module and display alarm module, wherein display alarm module is drawn respectively data line and is connected with the laser generation module with the Photoelectric Detection module, described temperature range detection fiber is connected with the Photoelectric Detection module, and incident optical is connected with the laser generation module.
The light source that laser generation module described in the utility model produces is cold light source.Temperature range detection fiber of the present invention is connected with three taper light shields and passes through the optically focused convex lens and forms three thermometric zones, and three thermometric zones are respectively: low-temperature space, normal temperature measuring area and High Temperature district.
in use procedure of the present utility model, temperature variation causes the variation of mercury thermometer mercury liquid level position, the collimation incident illumination that imports by incident optical is mapped on the mercury liquid level, the variation of mercury liquid level position can cause the variation on the folded light beam direction, the reflected light direction zone that corresponding temperature range detection fiber is corresponding certain, place the optically focused convex lens on the reflected light exit direction, utilizing emitted light to the different directions zone focuses on, and export on different temperature range detection fiber, the interval detection fiber of monitoring, alarming module detected temperatures, if on the optical fiber in coherent detection interval, reflected light beam signal is arranged, show that device temperature is on corresponding interval temperature, and according to the alarm threshold value of setting, carrying out temperature shows and reports to the police, thereby realize the interval type temperature monitoring.
The passive temperature measurement module that is placed in the utility model on high voltage electric equipment does not need Power supply, adopt mercury thermometer as temperature sensor, obtain and transmit temperature information by full optical means, solved voltage isolation and electromagnetic interference problem under high pressure, high electromagnetic environment fully; In the utility model, mercury thermometer keeps close contact by heat-conducting metal groove and contact to be measured, guarantees thermometric precision and real-time, in order to prevent the interference of other light, at optically focused convex lens back side arrangement taper lightshade cover; In the utility model, according to measurement range reflects light line position, optically focused convex lens component becomes Three regions: low-temperature space, normal temperature district, High Temperature district, thereby realize the interval type temperature monitoring, satisfy the requirement to the temperature monitoring precision of the high voltage electric equipments such as high-voltage switch gear, bus fully; The utility model is simple in structure, and is with low cost, and working service is convenient.
Description of drawings
Fig. 1 is structural representation of the present utility model, and Fig. 2 is the structural representation of passive temperature measurement module in the utility model; Fig. 3 is the structural representation of monitoring, alarming module in the utility model.
Drawing explanation: 1, passive temperature measurement module, 2, connect the optical fiber group, 3, the monitoring, alarming module, 4, housing, 5, the incident light collimation lens, 6, mercury thermometer, 7, conducting metal groove, 8, taper shadow shield, 9, the optically focused convex lens, 10, the temperature range detection fiber, 11, incident optical, 12, Photoelectric Detection module, 13, the display alarm module, 14, the laser generation module.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail.
The passive interval type device for detecting temperature of a kind of high voltage electric equipment, mainly comprise passive temperature measurement module 1, connect optical fiber group 2 and monitoring, alarming module 3, wherein passive temperature measurement module 1 is connected by being connected optical fiber group 2 with monitoring, alarming module 3, described passive temperature measurement module 1 mainly is comprised of housing 4, incident light collimation lens 5, mercury thermometer 6, conducting metal groove 7, taper light shield 8 and optically focused convex lens 9, and wherein mercury thermometer 6 forms passive temperature probe with conducting metal groove 7; Described connection optical fiber group 2 is comprised of four optical fiber, wherein three is temperature range detection fiber 10, other one is incident optical 11, described temperature range detection fiber 10 is connected with taper light shield 8, this taper light shield 8 inside are placed with optically focused convex lens 9, incident optical 11 is connected with incident light collimation lens 5, and the collimation incident beam that imports by incident optical 11 is mapped to and forms folded light beam on the mercury liquid level incident optical 11 and temperature range detection fiber 10 are connected as a single entity; Described monitoring, alarming module 3 is comprised of Photoelectric Detection module 12, laser generation module 14 and display alarm module 13, wherein display alarm module 13 is drawn respectively data line and is connected with laser generation module 14 with Photoelectric Detection module 12, described temperature range detection fiber 10 is connected with Photoelectric Detection module 12, and incident optical 11 is connected with laser generation module 14.
The light source that laser generation module 14 described in the utility model produces is cold light source.Temperature range detection fiber 10 of the present invention is connected with three taper light shields 8 and passes through optically focused convex lens 9 and forms three thermometric zones, and three thermometric zones are respectively: low-temperature space, normal temperature measuring area and High Temperature district.
in use procedure of the present utility model, temperature variation causes the variation of mercury thermometer 6 mercury liquid level positions, the collimation incident illumination that imports by incident optical 11 is mapped on the mercury liquid level, the variation of mercury liquid level position can cause the variation on the folded light beam direction, the reflected light direction zone that corresponding temperature range detection fiber 10 is corresponding certain, place optically focused convex lens 9 on the reflected light exit direction, utilizing emitted light to the different directions zone focuses on, and export on different temperature range detection fiber 10, the interval detection fiber 10 of monitoring, alarming module 3 detected temperatures, if on the optical fiber in coherent detection interval, reflected light beam signal is arranged, show that device temperature is on corresponding interval temperature, and according to the alarm threshold value of setting, carrying out temperature shows and reports to the police, thereby realize the interval type temperature monitoring.
Passive temperature measurement module 1 described in the utility model is connected to Photoelectric Detection module 12 by connecting optical fiber group 2, and be connected to display alarm module 13, mercury thermometer 6 on passive temperature measurement module 1 keeps in touch with bus contact joint, the cold light source that is imported by incident optical 11 is radiated on the liquid level of mercury thermometer 6, and optically focused convex lens 9 are placed on the reflection ray place and give optically focused.Optically focused convex lens 9 places are divided into Three regions according to the angular range of reflection ray: low-temperature space, normal temperature district, High Temperature district.In order to prevent the interference of other light, guarantee the intensity of reflection ray, specially at optically focused convex lens 9 back sides arrangement taper lightshade covers 8, and taper light shield 8 ends are connected to temperature range detection fiber 10, the different monitoring, alarming signal of signal sets according to 10 transmission of temperature range detection fiber, temperature-40-40 ℃ normal, 40-80 ℃ of warnings, 80-120 ℃ of warnings.
Claims (3)
1. passive interval type device for detecting temperature of high voltage electric equipment, mainly comprise passive temperature measurement module, connect optical fiber group and monitoring, alarming module, wherein passive temperature measurement module is connected by being connected the optical fiber group with the monitoring, alarming module, it is characterized in that: described passive temperature measurement module mainly is comprised of housing, incident light collimation lens, mercury thermometer, conducting metal groove, taper light shield and optically focused convex lens, and wherein mercury thermometer and conducting metal groove form passive temperature probe; Described connection optical fiber group is comprised of four optical fiber, wherein three is the temperature range detection fiber, other one is incident optical, described temperature range detection fiber is connected with the taper light shield, this taper light shield inside is placed with the optically focused convex lens, incident optical is connected with the incident light collimation lens, and the collimation incident beam that imports by incident optical is mapped to and forms folded light beam on the mercury liquid level incident optical and temperature range detection fiber are connected as a single entity; Described monitoring, alarming module is comprised of Photoelectric Detection module, laser generation module and display alarm module, wherein display alarm module is drawn respectively data line and is connected with the laser generation module with the Photoelectric Detection module, described temperature range detection fiber is connected with the Photoelectric Detection module, and incident optical is connected with the laser generation module.
2. the passive interval type device for detecting temperature of high voltage electric equipment according to claim 1 is characterized in that: the light source that described laser generation module produces is cold light source.
3. the passive interval type device for detecting temperature of high voltage electric equipment according to claim 1, it is characterized in that: described temperature range detection fiber is connected with three taper light shields and passes through the optically focused convex lens and forms three thermometric zones, and three thermometric zones are respectively: low-temperature space, normal temperature measuring area and High Temperature district.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320297814 CN203274937U (en) | 2013-05-28 | 2013-05-28 | High-voltage electrical-equipment passive interval type temperature monitoring device |
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| CN 201320297814 CN203274937U (en) | 2013-05-28 | 2013-05-28 | High-voltage electrical-equipment passive interval type temperature monitoring device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278252A (en) * | 2013-05-28 | 2013-09-04 | 河南师范大学 | Passive interval type temperature monitoring device of high voltage electric equipment |
| CN106814437A (en) * | 2015-11-30 | 2017-06-09 | 东莞酷派软件技术有限公司 | A kind of camera head and its manufacture method, mobile terminal |
| CN110911956A (en) * | 2019-11-21 | 2020-03-24 | 东莞理工学院 | Laser incident optical device |
-
2013
- 2013-05-28 CN CN 201320297814 patent/CN203274937U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278252A (en) * | 2013-05-28 | 2013-09-04 | 河南师范大学 | Passive interval type temperature monitoring device of high voltage electric equipment |
| CN106814437A (en) * | 2015-11-30 | 2017-06-09 | 东莞酷派软件技术有限公司 | A kind of camera head and its manufacture method, mobile terminal |
| CN110911956A (en) * | 2019-11-21 | 2020-03-24 | 东莞理工学院 | Laser incident optical device |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20150528 |
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| EXPY | Termination of patent right or utility model |