CN205942981U - Multi -parameter temperature measurement formula alarm and control system for electric fire prevention - Google Patents
Multi -parameter temperature measurement formula alarm and control system for electric fire prevention Download PDFInfo
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- CN205942981U CN205942981U CN201620859882.1U CN201620859882U CN205942981U CN 205942981 U CN205942981 U CN 205942981U CN 201620859882 U CN201620859882 U CN 201620859882U CN 205942981 U CN205942981 U CN 205942981U
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Abstract
The utility model discloses a multi -parameter temperature measurement formula alarm and control system for electric fire prevention, contain electric fire supervisory equipment, monitoring detector and temperature sensor, monitoring detector receives the temperature signal of temperature sensor collection and handles, can both -way communication between electric fire supervisory equipment and the monitoring detector, electric fire supervisory equipment sends monitoring detector and patrols and examines the signal, receive monitoring detector's response message, temperature sensor can be the point contact formula, line contact formula and non -contact's arbitrary kind or arbitrary combination, and temperature sensor can set up in an electric system closed relatively. The utility model discloses integrateed semiconductor, line type and infrared temperature sensors have realized the temperature measurement mode that multiple mechanism is different completely, and many parameter measurement mode has improved temperature measurement formula electric fire monitoring detector's early electric fire response ability and warning accuracy greatly, can realize that non -contact measures and the mounting means, can avoid the high pressure interference effectively.
Description
Technical field
This utility model is related to electric fire monitoring system in safety engineering discipline, especially a kind of multiparameter temp.-measuring type electricity
Gas fire monitoring system.
Background technology
Electric fire monitoring system belongs to fire forecast alarm system, is one kind of many fire prevention means.Electrical equipment
When there is the gradation type electric faults such as overcurrent, loose contact, the spot temperature liter such as cable connector, binding post can be led to
Height, when temperature raises the combustible of surrounding of can igniting to a certain extent, thus cause electrical fire.Electrical fire prison is installed
Control system can contain the generation of electrical fire accident effectively, ensures national wealth and the people's lives and property safety.In electricity
The weak parts such as cable joint, binding post arrange the temperature that temperature-measuring-type electrical fire can effectively monitor these positions
Degree change, makes alarm response when temperature reaches certain threshold value, thus it is hidden to eliminate the electrical fire that this kind of electric fault brings
Suffer from.The basic composition of electric fire monitoring system should include electrical fire monitoring device and detector for electric fire protection, at present
During engineering practice, it is common to use gas fire monitoring detector mainly have residual current type detector for electric fire protection,
The products such as temperature-measuring-type electrical fire.Temperature-measuring-type electrical fire is by monitoring detector and temperature transducers
Device is formed, and for the detection of circuit overload, loose contact and initiation fire, is that to detect electric fault initiation fire most effective
One of means it is adaptable to all kinds of power distribution cabinet, be mainly disposed to the joint area in electric wiring, that is, in power distribution cabinet.
The operation principle of temperature measuring type electrical fire monitoring system is, when the parameters such as the temperature in electrical equipment occur abnormal or
During mutation, temperature sensor utilizes the change of temperature effects to this information, and is transported in monitoring detector, through putting
Greatly, A/D conversion, CPU are analyzed, judge to the amplitude of change, and be compared with alarm setting value, once exceeding setting value
Then send alarm signal, be also transported in monitoring device simultaneously, then identify further through monitoring device, judge, possible when confirming
When fire can occur, monitoring host computer sends fire alarm signal, lights alarm lamp, sends alarm sound, simultaneously in liquid crystal
The information such as display screen display fire alarm.Operator on duty's then information according to above display, is examined to the scene of the accident rapidly
Investigate and prosecute reason, and warning message is sent to integrated console.
The setting of temperature-measuring-type electrical fire should be basic to detect electrical system keypoint part abnormal heating
Principle, is preferably arranged on the equipment such as the power distribution cabinet of building inner high voltage system, transformer case, capacitor compensation cabinet, rectifier cabinet, conversion cabinet
Emphasis heating position.Temperature-measuring-type electrical fire in current engineer applied, commonly used temperature transducers
Device is mainly semiconductor temperature sensor (critesistor) and linear temperature sensor, and the problem that it is primarily present is as follows：One is
The sensitivity of temperature transducer is not high, and protection domain is limited.It is applied to the temperature of temperature-measuring-type electrical fire at present
Sensor mainly adopts semiconductor temperature sensor, in order to ensure the Effect on Detecting of temperature transducer, realizes the pre-alarm of early stage,
Project installation generally adopts contact to arrange, temperature transducer is fixed on the surface of inspected object, so mesolow is joined
Electric cabinet has good protective effect；But because installation process belongs to wired connection, in the more controller switching equipment of terminal and distribution
In cabinet, because wiring difficulty cannot large area be laid.But local is laid and cannot be realized comprehensive abnormal temperature monitoring, therefore
There is certain limitation, be unfavorable for engineering maintenance and maintenance.Meanwhile, in high-voltage board, cannot large area lay except above-mentioned
Problem, because the requirement to insulation is higher, for temperature transducer using also bringing certain limitation..Two be by
It is mostly high pressure place in application places, along with contact is installed, temperature transducer is easily disturbed by high pressure, leads to its work not
Stable.Three is to be limited with detecting mechanism by structure, and temperature transducer measures for one-parameter, the protection model of a temperature transducer
It is with limit, so limiting the protection domain of temperature transducer, for example, semiconductor temperature sensor adopts point contact type thermometric,
Linear temperature sensor adopts line contact type thermometric, the detection to power distribution cabinet this multichannel inlet wire, outlet, need to adopt for one
Inlet wire or outlet are equipped with the mode that a temperature transducer is protected, and this mode increased engineering equipment cost, and reducing engineering should
Use cost performance.
For the limitation of one-parameter measurement, occur in practice much different parameters being integrated in a detection system
Trial, such as notification number is CN205263985U, entitled " a kind of electric fire monitoring system of Multi-sensor Fusion "
The technical scheme that utility model proposition is monitored to electric current, electric leakage, temperature, smog, humidity simultaneously, can be used for all kinds of buildings
Power distribution cabinet (case).Although this technology avoids the defect of one-parameter detection, it, there is problems that system complex, needs to solve
The pretreatment of multiple signals, certainly will affect the response speed of control system, and the precision of measurement also can be affected.And, compare
In information such as smog, humidity, the detection of temperature has bigger value for the prevention of electrical fire, therefore, this by smog,
The technology that the multiparameters such as humidity carry out fusion detection also haves the shortcomings that practicality is not strong.
In sum, due to the presence of the problems referred to above, greatly limit the application of temperature-measuring-type electrical fire
Scope, have impact on the electrical fire early stage responding ability of detector.
Utility model content
The purpose of this utility model is the above-mentioned the deficiencies in the prior art of customer service, provides a kind of multiparameter temp.-measuring type
Electric fire monitoring system, introduces infrared temperature sensor, has high sensitivity, and investigative range is wide, is capable of contactless
Thermometric, it is to avoid contact installs the high pressure interference bringing, and reduces engineering equipment cost, using measuring multiple parameters, has stronger
Early stage electrical fire responding ability.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is：A kind of multiparameter temp.-measuring type is electrically fiery
Calamity monitoring system, comprises electrical fire monitoring device, monitoring detector and temperature sensor, and monitoring detector receives temperature sensing
The temperature signal of device collection is simultaneously processed, can be with two-way communication, electrically between electrical fire monitoring device and monitoring detector
Fire hazard monitoring equipment sends to monitoring detector and patrols and examines signal, receives the response message of monitoring detector, described temperature sensor
Can be point contact type, line contact type and contactless any one or combination in any, and described temperature sensor is permissible
It is arranged in the electrical system of a relative close type.
In three kinds of temperature sensors, the part directly contact to be monitored of point contact type temperature sensor and electrical system, adopt
Collect its temperature information；Different parts of line contact type temperature sensor and a part to be monitored of electrical system or multiple wait to supervise
Control part directly contact, gathers its temperature information respectively；Non-contact temperature sensor is not directly contacted with part to be monitored, leads to
Cross infrared ray or other media gathers the temperature information of part to be monitored.
For making the best results of monitoring, non-contact temperature sensor is arranged on the top of closed electrical system, side
Inside wall, door or multiple part to be monitored top, to obtain the maximization of monitoring space scope.
Further, monitoring detector including microcontroller, level shifting circuit, interface circuit, signal decoding circuit,
Response control circuit, over-sampling modulate circuit.
Further, over-sampling modulate circuit includes sample circuit, filter circuit and amplifying circuit.
Electrical fire monitoring device is connected with monitoring detector by interface circuit in two lines bus mode, so with signal solution
Code circuit, response control circuit connect, and realize the bidirectional data transfers of electrical fire monitoring device and monitoring detector.
Further, electrical fire monitoring device carries out patrolling and examining communication to monitoring detector.
Further, carry out patrolling and examining electrical fire monitoring device during communication unique to the setting of each monitoring detector in advance
Address, in each polling period, patrols and examines to monitoring detector successively according to certain order, and corresponding monitoring detector will
The monitoring information of the inclusion temperature data information obtaining is sent to electrical fire monitoring device, by the latter according to rule set in advance
Then make corresponding process.
As the scope of application of the present utility model, the electrical system of above-mentioned relative close type comprise all kinds of high pressure, middle pressure and
The cabinet type electrical equipment of low pressure or long-distance distributed electrical system.
Above-mentioned cabinet type electrical equipment comprises power distribution cabinet, distribution box, switch board, control chamber, long-distance distributed electrical system
Comprise cable tunnel or cable testing bridge.
Compared with prior art, the utility model has the advantage of：
1. a kind of multiparameter temperature measuring type electrical fire monitoring system that this utility model is related to, it is integrated with conductor temperature
Sensor, linear temperature sensor, infrared temperature sensor are it is achieved that multiple mechanism diverse temperature survey mode, many
Parameter measurement mode substantially increases the early stage electrical fire responding ability of temperature-measuring-type electrical fire and reports to the police accurate
Really property.
2. the infrared temperature sensor that this utility model is related to, substantially increases temperature-measuring-type electrical fire
Grade of sensitivity, achievable non-contact measurement disturbs with using contactless mounting means, can effectively avoid high pressure,
Expand the protection domain of sensor while reducing rate of false alarm, improve the engineering adaptability of sensor.
3., in high-voltage board, so need not be able to lead to using infrared temperature sensor or using the sensor on line terminal
Cross the temp.-measuring type detector that wiring may be connected to electrical fire monitoring device.Both the electrical strength of original circuit can have been ensured, and
Achieve the warning in advance to line fault.
Brief description
Fig. 1 is principle schematic of the present utility model.
Fig. 2 is the circuit theory diagrams of temperature-measuring-type electrical fire.
Fig. 3 is the structural representation of an embodiment of the present utility model.
Specific embodiment
In conjunction with accompanying drawing, specific embodiment of the present utility model is further described in detail.
Referring to accompanying drawing 1, a kind of multiparameter temperature measuring type electrical fire monitoring system, including electrical fire monitoring device, thermometric
Formula detector for electric fire protection and temperature sensor.
Temperature-measuring-type electrical fire, it is at least connected with a road temperature sensor, and the type of temperature sensor
It is not limited to one kind；Temperature sensor includes semiconductor temperature sensor, linear temperature sensor, infrared temperature sensor etc..
Referring to accompanying drawing 2, temperature-measuring-type electrical fire main circuit, including microcontroller circuit, level conversion electricity
Road, interface circuit, signal decoding circuit, response control circuit, over-sampling modulate circuit.
Temperature-measuring-type electrical fire is powered by external power source, and external power source is turned by level shifting circuit
Change the voltage respectively used in temperature-measuring-type electrical fire needed for electrical component into.
Microcontroller circuit is mainly made up of single chip circuit and address encoding unit circuit, each temp.-measuring type electrical fire
Monitoring detector has unique address, and its address is stored in advance in address encoding unit.
Over-sampling modulate circuit includes sample circuit, filter circuit and amplifying circuit.Over-sampling modulate circuit includes quasiconductor temperature
Degree sensor sample modulate circuit, linear temperature sensor over-sampling modulate circuit, infrared temperature sensor over-sampling modulate circuit
One or more；Semiconductor temperature sensor is connected with semiconductor temperature sensor over-sampling modulate circuit, linear temperature sensor
It is connected with linear temperature sensor over-sampling modulate circuit, infrared temperature sensor is with infrared temperature sensor over-sampling modulate circuit even
Connect.
Electrical fire monitoring device passes through interface circuit with temperature-measuring-type electrical fire even in two lines bus mode
Connect, and then be connected with signal decoding circuit, response control circuit, realize electrical fire monitoring device and supervise with temp.-measuring type electrical fire
The bidirectional data transfers of control detector.
Fig. 3 is the structural representation of an embodiment of the present utility model, in figure, and 1 is power distribution cabinet, but in practical application also
Can be the distribution box of all kinds of high pressure, middle pressure and low pressure, switch board, control chamber, and long-distance distributed cable tunnel or
Cable testing bridge.2 is binding post, and 3 is infrared temperature sensor, is arranged on the top of power distribution cabinet but it is also possible to according to terminals
The space layout situation of son is arranged on the inner side of side wall or distribution cabinet door, and 4 is linear temperature sensor, can connect with a plurality of
Line terminals directly contact, 5 is semiconductor temperature sensor, with binding post directly contact.
The operation principle of multiparameter temperature measuring type electrical fire monitoring system is：When the temperature of the object being detected protection occurs
When exception or mutation, temperature sensor can induce the change information of temperature, and is transported in monitoring detector, sampled conditioning
Circuit carries out sampling, filters, amplify after be transported to microcontroller circuit, then through Chip Microcomputer A/D conversion, data analysiss, judgement, and
Being compared with alarm setting value, once exceeding setting value, sending alarm signal, simultaneously through response control circuit and interface
The signals such as temperature, warning, address are transported in monitoring device by circuit by two lines bus, then identify further through monitoring device,
Judge, when confirming it may happen that during fire, monitoring host computer sends fire alarm signal, lights alarm lamp, sends warning
Sound equipment, simultaneously in information such as liquid crystal display screen display fire alarms.
Electrical fire monitoring device need to carry out patrolling and examining communication to temperature-measuring-type electrical fire.Supervise to each in advance
Control detector arranges unique address in each polling period, enters successively according to the ascending order of monitoring detector numbering
Row is patrolled and examined；Electrical fire monitoring device sending mode position and address bit, mode bit represents specifically patrols and examines order, monitoring detector
After receiving mode bit and information of address bit, with the address bit matches of itself, corresponding monitoring detector is by this monitoring detector
The monitoring information of the inclusion temperature data information obtaining is sent back to as response message, and electrical fire monitoring device receives prison
The response message of control detector loopback, and be correspondingly processed, then carry out patrolling and examining of next monitoring detector, it was patrolled and examined
Journey is ibid；After the completion of electrical fire monitoring device is patrolled and examined successively to all of monitoring detector, a polling period terminates, and enters
Enter next polling period, the process of each polling period is ibid.
On the premise of guaranteeing electric fire alarm response real-time, the quantity of warm formula detector for electric fire protection up to
256.
It should be noted that above-described embodiment provided by the utility model only has schematically, not in order to limit this
Utility model, all of the present utility model spirit and principle within, any modification, equivalent substitution and improvement made etc., all should wrap
It is contained within protection domain of the present utility model.Semiconductor temperature sensor disclosed in embodiment, linear temperature sensor,
The installation site of infrared temperature sensor flexibly can also be arranged according to the quantity of the binding post of power distribution cabinet and position.Three kinds of biographies
Sensor can also unrestricted choice, combination according to the actual needs.
Claims (10)
1. a kind of multiparameter temperature measuring type electrical fire monitoring system, comprises electrical fire monitoring device, monitoring detector and temperature
Sensor, the temperature signal that monitoring detector receives temperature sensor collection is simultaneously processed, electrical fire monitoring device and prison
Can be with two-way communication between control detector, electrical fire monitoring device sends to monitoring detector and patrols and examines signal, receives monitoring and visits
Survey the response message of device it is characterised in that described temperature sensor can be point contact type, line contact type and contactless
Any one or combination in any, and described temperature sensor can be arranged in the electrical system of a relative close type.
2. as claimed in claim 1 a kind of multiparameter temperature measuring type electrical fire monitoring system it is characterised in that described point contact
Formula temperature sensor and the part directly contact to be monitored of electrical system, gather its temperature information；Described line contact type temperature passes
The different parts of one part to be monitored of sensor and electrical system or multiple part directly contact to be monitored, gather its temperature respectively
Degree information；Described non-contact temperature sensor is not directly contacted with part to be monitored, by infrared ray or other media collection
The temperature information of part to be monitored.
3. as claimed in claim 2 a kind of multiparameter temperature measuring type electrical fire monitoring system it is characterised in that described noncontact
Formula temperature sensor be arranged on the top of closed electrical system, side wall, inside door or multiple part to be monitored top, to take
Obtain the maximization of monitoring space scope.
4. as claimed in claim 1 a kind of multiparameter temperature measuring type electrical fire monitoring system it is characterised in that described monitoring visit
Survey device and include microcontroller, level shifting circuit, interface circuit, signal decoding circuit, response control circuit, sampling conditioning electricity
Road.
5. as claimed in claim 4 a kind of multiparameter temperature measuring type electrical fire monitoring system it is characterised in that described sampling adjust
Reason circuit includes sample circuit, filter circuit and amplifying circuit.
6. as claimed in claim 4 a kind of multiparameter temperature measuring type electrical fire monitoring system it is characterised in that described electric fire
Calamity monitoring device is connected with monitoring detector by interface circuit in two lines bus mode, so with signal decoding circuit, response control
Circuit processed connects, and realizes the bidirectional data transfers of electrical fire monitoring device and monitoring detector.
7. as claimed in claim 1 a kind of multiparameter temperature measuring type electrical fire monitoring system it is characterised in that described electric fire
Calamity monitoring device carries out patrolling and examining communication to monitoring detector.
8. as claimed in claim 7 a kind of multiparameter temperature measuring type electrical fire monitoring system it is characterised in that when patrolling and examining communication
Electrical fire monitoring device arranges unique address, in each polling period, according to certain in advance each monitoring detector
Order is patrolled and examined to monitoring detector successively, and the monitoring of the inclusion obtaining temperature data information is believed by corresponding monitoring detector
Breath is sent to electrical fire monitoring device, makes corresponding process by the latter according to rule set in advance.
9. as claimed in claim 1 a kind of multiparameter temperature measuring type electrical fire monitoring system it is characterised in that described relatively seal
The electrical system of enclosed comprises the cabinet type electrical equipment of all kinds of high pressure, middle pressure and low pressure or long-distance distributed electrical system.
10. as claimed in claim 9 a kind of multiparameter temperature measuring type electrical fire monitoring system it is characterised in that described cabinet-type electric
Gas equipment comprises power distribution cabinet, distribution box, switch board, control chamber, described long-distance distributed electrical system comprise cable tunnel or
Cable testing bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620859882.1U CN205942981U (en) | 2016-08-09 | 2016-08-09 | Multi -parameter temperature measurement formula alarm and control system for electric fire prevention |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620859882.1U CN205942981U (en) | 2016-08-09 | 2016-08-09 | Multi -parameter temperature measurement formula alarm and control system for electric fire prevention |
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| CN205942981U true CN205942981U (en) | 2017-02-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106251557A (en) * | 2016-08-09 | 2016-12-21 | 无锡圣敏传感科技股份有限公司 | A kind of multiparameter temperature measuring type electrical fire monitoring system |
| CN111447789A (en) * | 2020-03-26 | 2020-07-24 | 武汉钢铁有限公司 | Data center cabinet and air conditioning control method |
-
2016
- 2016-08-09 CN CN201620859882.1U patent/CN205942981U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106251557A (en) * | 2016-08-09 | 2016-12-21 | 无锡圣敏传感科技股份有限公司 | A kind of multiparameter temperature measuring type electrical fire monitoring system |
| CN111447789A (en) * | 2020-03-26 | 2020-07-24 | 武汉钢铁有限公司 | Data center cabinet and air conditioning control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Song Zhen Inventor after: Liu Xing Inventor before: Song Zhen Inventor before: Liu Xing Inventor before: Yu Fangyan |