CN201813067U - Electronic nose technology based temperature monitoring system of mesohigh-voltage switch cabinet - Google Patents

Electronic nose technology based temperature monitoring system of mesohigh-voltage switch cabinet Download PDF

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Publication number
CN201813067U
CN201813067U CN2010205282764U CN201020528276U CN201813067U CN 201813067 U CN201813067 U CN 201813067U CN 2010205282764 U CN2010205282764 U CN 2010205282764U CN 201020528276 U CN201020528276 U CN 201020528276U CN 201813067 U CN201813067 U CN 201813067U
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CN
China
Prior art keywords
voltage switch
monitoring system
high voltage
temperature monitoring
electronic nose
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Expired - Fee Related
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CN2010205282764U
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Chinese (zh)
Inventor
王春生
乐健
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State Grid Corp of China SGCC
Jiaozuo Power Supply Co of State Grid Henan Electric Power Co Ltd
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Jiaozuo Power Supply Co of Henan Electric Power Co
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Priority to CN2010205282764U priority Critical patent/CN201813067U/en
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    • 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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission

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Abstract

The utility model relates to an electronic nose technology based temperature monitoring system of a mesohigh-voltage switch cabinet. A gas storage and release device is arranged on an easy overheat point in the mesohigh-voltage switch cabinet, and a field detection terminal is arranged at the bottom of the mesohigh-voltage switch cabinet and is connected with a background server through a wireless local area network. In the utility model, only the gas storage and release device needs to be arranged on the easy overheat point in the switch cabinet so that the system has simple structure and is convenient to install; and an overheat signal is transmitted through CO2 gas, the judgment is accurate and rapid and no new fault point is brought to the switch cabinet. The system solves the problem that a non-contact system is incapable of accurately positioning, can accurately and rapidly realize the detection and early warning of the overheat state of a contact of the switch cabinet, has low cost, and can effectively avoid the burning-down accident of the switch cabinet.

Description

Middle-high voltage switch temperature monitoring system based on Electronic Nose Technology
Technical field
The utility model is a kind of middle-high voltage switch over-temperature condition detection of electric power system and monitoring system of early warning of being used for, and the burnout failure that causes because of excess temperature occurs to avoid switch cubicle.
Background technology
The subject matter that exists at the switch cubicle temperature monitoring system is the installation of monitoring sensor at present.Its mounting means mainly contains contact and contactless two kinds.Contact mounting means complex structure is difficult to large scale application.Simultaneously, increasing switch cubicle develops towards the direction of compact conformation, maintenance safe.This system had both increased the workload of installing engineering, had also introduced new fault point in switch cubicle.The subject matter that contactless system exists is that the relative position between transducer and monitoring point needs accurately to fix, and obstruction can not be arranged between the two, and this is difficult to accomplish in switch cubicle.
The utility model content
The purpose of this utility model is the shortcoming that overcomes contact monitoring system complex structure, be not easy to install, the drawback of avoiding contactless system accurately to locate simultaneously provides a kind of simple in structure, safe and reliable contactless middle-high voltage switch temperature monitoring system.
For achieving the above object, the utility model is by the following technical solutions:
Easy the cross warm spot of the utility model in middle-high voltage switch is provided with atmosphere storage and releasing device, in the bottom of middle-high voltage switch on-the-spot sense terminals is set, and described on-the-spot sense terminals is connected with background server by WLAN (wireless local area network).
The described easy warm spot of crossing comprises switch movable contact and switch fixed contact.
Described atmosphere storage and releasing device comprise gas storage units, are filled with CO2 gas in the gas storage units, and described gas storage units is connected with device for detecting temperature by gas release device.
Described device for detecting temperature is made of bimetal leaf; Gas release device is a pricker.
Described on-the-spot sense terminals is made of the gas detection cell that is connected successively, field control terminal, wireless communication unit.
Described gas detection cell comprises CO2 gas sensor and coupled control circuit, the external memory circuit of control circuit.
Described field control terminal comprises the sample holding unit of the voltage signal of gathering the gas detection cell transmission, and the output of sample holding unit is connected to main control circuit, and the output of main control circuit connects wireless communication unit.
The output of described main control circuit also is connected with the alarm driver element, and the alarm driver element connects acousto-optic associating Alarm Unit.
Set up wireless repeater in the described WLAN (wireless local area network).
Adopt the utility model of technique scheme, only need easy warm spot installation atmosphere storage and the releasing device crossed in switch cubicle, simple in structure, be convenient to install; The excess temperature signal passes through CO 2Gas transmits, and accuracy of judgement is rapid, can not bring new fault point to switch cubicle.The shortcoming that this system can overcome contact monitoring system complex structure, be not easy to install has solved the problem that contactless system can't accurately locate simultaneously.Can accurately promptly realize the detection and the early warning of switch cabinet contact over-temperature condition, cheap, can avoid the burnout failure of switch cubicle effectively.
Description of drawings
Fig. 1 is atmosphere storage of the present utility model and releasing device structural representation.
Fig. 2 is an on-the-spot sense terminals structural representation of the present utility model.
Fig. 3 is a single switch cabinet scheme of installation of the present utility model.
Fig. 4 is the utility model overall structure schematic diagram.
Embodiment
Easy the cross warm spot of the utility model in middle-high voltage switch 51 is provided with atmosphere storage and releasing device 11, and on-the-spot sense terminals 30 is set in the bottom of middle-high voltage switch 51, and on-the-spot sense terminals 30 is connected with background server 69 by WLAN (wireless local area network) 68.Below specify:
As shown in Figure 1, the utility model comprises CO2 atmosphere storage and releasing device 11, is installed on the easy warm spot of crossing in the switch cubicle.This CO2 atmosphere storage and releasing device 11 mainly comprise gas storage units 13, and gas storage units 13 is connected with device for detecting temperature 14 by gas release device 15.Wherein gas storage units 13 is the closed containers that are made of elastomeric material, inside is filled with normal pressure CO2 gas 12, CO2 gas has insulating properties height, non-conductive, nontoxic, non-corrosiveness, non-detonating and the low characteristics of airborne normal contents, and low price, storage, transportation, purchase are convenient simultaneously.Device for detecting temperature 14 adopts bimetal leaf to constitute, bimetal leaf is by two kinds or multiplely have the metal of suitable performance or an a kind of composite material that other material is formed, when certain design temperature, the deformation difference that different materials takes place, and then whole deformation takes place, temperature when deformation takes place can be set, and this bimetal leaf purchase is convenient, cheap.Utilize the deformation of device for detecting temperature to trigger gas release device 15, gas release device is generally needle prick shape, can puncture the atmosphere storage device when triggering, and irreversibly discharges CO2 gas.
As shown in Figure 2, the utility model comprises on-the-spot sense terminals 30, is installed on the bottom of switch cubicle.It is made of the gas detection cell 31 that is connected successively, field control terminal 32, wireless communication unit 33.Wherein,
Gas detection cell 31, this unit pack contains CO2 gas sensor 34, and CO2 gas sensor 34 can be converted to the CO2 gas concentration analog voltage signal and deliver to field control unit 32.This gas sensor can be bought on market easily.Also include control circuit 35 in the gas detection cell 31, it is made of general 80C51 single-chip microcomputer, is used for the startup of control gaseous transducer and resets; Also comprise memory circuit 36, constitute, be used for storage voltage data and field control unit order by 32K storage chip 62256.
Field control terminal 32, this unit pack contains main control circuit 38, the MSP430F147 that is produced by TI company constitutes, by the voltage signal that sample holding unit 37 receives and the sample gas detecting unit transmits, compare with the setting threshold values, when exceeding threshold values, send alert command and deliver to wireless communication unit 33, send alarm signal simultaneously to on-the-spot alarm driver element 39, this unit drives acousto-optic associating Alarm Unit 42, acousto-optic associating Alarm Unit sends alerting tone when the super threshold values of gas concentration occurring, and the flash red stand by lamp.
Wireless communication unit 33, this unit pack contains signaling conversion circuit 40, the parallel signal of field control unit is converted to the signal that wireless communication chips group 41 needs, the wireless communication chips group is made of the wireless LAN communication chipset Am1772 that AMD produces, and makes field control unit 32 to communicate by WLAN (wireless local area network) 43.
As shown in Figure 3, easy the cross warm spot of the utility model in middle-high voltage switch 51, the junction that is generally moving contact 54 and fixed contact 53 is equipped with atmosphere storage and releasing device 11, and at least one on-the-spot sense terminals 30 is installed in the bottom of switch cubicle.When easy mistake warm spot temperature exceeded threshold values, atmosphere storage and releasing device discharged CO2 gas 12, made the interior CO2 gas concentration of cabinet far exceed the content in the normal air.On-the-spot sense terminals detects the CO2 gas concentration that exceeds standard, and promptly sends alarm signal.
As shown in Figure 4, the utility model can be monitored alarm to the over-temperature condition of a plurality of switch cubicles in the place.A plurality of warm spots of crossing in single switch cabinet 60 and 61 can be installed atmosphere storage and releasing device 11 respectively, in the bottom of single switch cabinet a plurality of on-the-spot sense terminals 30 can be installed, each switch cubicle alarm signal communicates by WLAN (wireless local area network) 68 and background server 69.WLAN (wireless local area network) adopts current widely used IEEE802.11g standard, need not to lay again communication line, easy construction.When switch cubicle and background server distance is far away, can add wireless repeater 66 and 67.Background server comprises wireless communication module 70, and it constitutes identical with above-mentioned wireless communication unit 33.Background server 69 also comprises monitoring software 71, and this software can show the state of temperature of each switch cubicle in real time, alarms when excess temperature occurring, indicates the switch cubicle that excess temperature takes place, and the prompting staff carries out corresponding operating.Simultaneously can send parameter order is set, inquire about current control terminal operating state etc. to each field control terminal.
Operation principle of the present utility model is:
When switch cubicle 51 work, switch movable contact 54 links to each other with switch fixed contact 53 and flows through big electric current among Fig. 3, so moving contact and fixed contact all can produce very high temperature under working for a long time.Be installed on atmosphere storage and releasing device 11 on the switch movable contact 54 and contact good.
Under normal circumstances, the temperature range of switch movable contact 54 operate as normal is 20 ℃-75 ℃, and gas release actuating mechanism 15 is failure to actuate among Fig. 1 at this moment, keeps normal air condition in the switch cubicle 51.CO in the normal air 2Concentration be 440PPM, converting voltage signal to is 0.44V.Field control terminal 30 is by analyzing the analog voltage signal of sampling, when amplitude during in the 0.44V left and right sides, illustrates that switch contact operates in the normal temperature situation.
When switch movable contact 54 works long hours heating and when excess temperature occurring, will cause temperature-detecting device 14 actions among Fig. 1, trigger gas release movement mechanism 15, irreversibly discharge CO 2Gas.Work as CO 2After the release, CO in the switch cubicle 2Concentration increases rapidly, and the voltage of gas detection cell 31 outputs will be far longer than the 0.44V under the normal condition among Fig. 2.At this moment, field control terminal 32 detects when finding output voltage amplitude much larger than 0.44V, and switch contact excess temperature is described.On-the-spot acousto-optic alarm signal will take place, and by radio communication unit 33, send alarm signal by WLAN (wireless local area network) to background server simultaneously.
Background server receives this alarm signal among Fig. 4, indicates the switch cubicle that excess temperature takes place, and the prompting field personnel carries out corresponding operating and handles, and information such as the time, voltage magnitude of excess temperature take place record, so that later analysis is used.
In summary, the utility model has utilized CO 2The carrier that gas transmits as the excess temperature signal only needs atmosphere storage and releasing device are installed in switch cubicle, need not additional power source, need not any lead line, thereby can not introduce new fault point.Utilize the method for gas detecting, need not the sensor alignment test point, having overcome traditional contactless excess temperature monitoring method need can be applicable to the switch cubicle of any labyrinth with the difficulty of the accurate aim detecting point of transducer.Various materials that whole system adopts and components and parts are cheap, it is convenient to buy have very high cost performance, have good marketing prospect.
Above embodiment is only for the usefulness that the utility model is described; but not to restriction of the present utility model; person skilled in the relevant technique; under the situation that does not break away from spirit and scope of the present utility model; can also make various conversion or modification; therefore all technical schemes that are equal to all fall into protection range of the present utility model.

Claims (9)

1. middle-high voltage switch temperature monitoring system based on Electronic Nose Technology, it is characterized in that: the easy warm spot of crossing in middle-high voltage switch (51) is provided with atmosphere storage and releasing device (11), in the bottom of middle-high voltage switch (51) on-the-spot sense terminals (30) is set, described on-the-spot sense terminals (30) is connected with background server (69) by WLAN (wireless local area network) (68).
2. the middle-high voltage switch temperature monitoring system based on Electronic Nose Technology according to claim 1 is characterized in that: the described easy warm spot of crossing comprises switch movable contact (54) and switch fixed contact (53).
3. the middle-high voltage switch temperature monitoring system based on Electronic Nose Technology according to claim 1, it is characterized in that: described atmosphere storage and releasing device (11) comprise gas storage units (13), be filled with CO2 gas (12) in the gas storage units (13), described gas storage units (13) is connected with device for detecting temperature (14) by gas release device (15).
4. the middle-high voltage switch temperature monitoring system based on Electronic Nose Technology according to claim 3 is characterized in that: described device for detecting temperature (14) is made of bimetal leaf; Described gas release device (15) is a pricker.
5. the middle-high voltage switch temperature monitoring system based on Electronic Nose Technology according to claim 1 is characterized in that: described on-the-spot sense terminals (30) is made of the gas detection cell that is connected successively (31), field control terminal (32), wireless communication unit (33).
6. the middle-high voltage switch temperature monitoring system based on Electronic Nose Technology according to claim 5, it is characterized in that: described gas detection cell (31) comprises CO2 gas sensor (34) and coupled control circuit (35), the external memory circuit of control circuit (35) (36).
7. the middle-high voltage switch temperature monitoring system based on Electronic Nose Technology according to claim 5, it is characterized in that: described field control terminal (32) comprises the sample holding unit (37) of the voltage signal of gathering the gas detection cell transmission, the output of sample holding unit (37) is connected to main control circuit (38), and the output of main control circuit (38) connects wireless communication unit (33).
8. the middle-high voltage switch temperature monitoring system based on Electronic Nose Technology according to claim 7, it is characterized in that: the output of described main control circuit (38) also is connected with alarm driver element (39), and alarm driver element (39) connects acousto-optic associating Alarm Unit (42).
9. the middle-high voltage switch temperature monitoring system based on Electronic Nose Technology according to claim 1 is characterized in that: set up wireless repeater (66,67) in the described WLAN (wireless local area network) (68).
CN2010205282764U 2010-09-14 2010-09-14 Electronic nose technology based temperature monitoring system of mesohigh-voltage switch cabinet Expired - Fee Related CN201813067U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205282764U CN201813067U (en) 2010-09-14 2010-09-14 Electronic nose technology based temperature monitoring system of mesohigh-voltage switch cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205282764U CN201813067U (en) 2010-09-14 2010-09-14 Electronic nose technology based temperature monitoring system of mesohigh-voltage switch cabinet

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102403655A (en) * 2010-09-14 2012-04-04 河南省电力公司焦作供电公司 Middle/high voltage switch cabinet temperature monitoring system based on electronic nose technology
CN108088586A (en) * 2018-01-16 2018-05-29 南京铁道职业技术学院 The temperature monitoring system and method for replacing electronic nose

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102403655A (en) * 2010-09-14 2012-04-04 河南省电力公司焦作供电公司 Middle/high voltage switch cabinet temperature monitoring system based on electronic nose technology
CN102403655B (en) * 2010-09-14 2015-12-09 国家电网公司 Based on the middle-high voltage switch temperature monitoring system of Electronic Nose Technology
CN108088586A (en) * 2018-01-16 2018-05-29 南京铁道职业技术学院 The temperature monitoring system and method for replacing electronic nose

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ASS Succession or assignment of patent right

Owner name: STATE GRID CORPORATION OF CHINA

Free format text: FORMER OWNER: JIAOZUO POWER SUPPLY COMPANY, STATE GRID HUNAN ELECTRIC POWER COMPANY

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Address after: 454150 No. 299 South Tower Road, Henan, Jiaozuo

Patentee after: JIAOZUO POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER Co.

Address before: 454150 No. 299 South Tower Road, Henan, Jiaozuo

Patentee before: Jiaozuo Power Supply Company, Henan Electric Power Corp.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20140211

Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing

Patentee after: State Grid Corporation of China

Patentee after: JIAOZUO POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER Co.

Address before: 454150 No. 299 South Tower Road, Henan, Jiaozuo

Patentee before: JIAOZUO POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER Co.

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110427

Termination date: 20180914