CN109489716A - Temperature and humidity control system working state monitoring instrument - Google Patents

Temperature and humidity control system working state monitoring instrument Download PDF

Info

Publication number
CN109489716A
CN109489716A CN201811143855.4A CN201811143855A CN109489716A CN 109489716 A CN109489716 A CN 109489716A CN 201811143855 A CN201811143855 A CN 201811143855A CN 109489716 A CN109489716 A CN 109489716A
Authority
CN
China
Prior art keywords
temperature
humidity control
terminal
working state
state monitoring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811143855.4A
Other languages
Chinese (zh)
Inventor
卢岩
战玲
李险峰
徐鲁博
何明
王秀军
老永刚
徐震
左颖
柳云
袁明阳
杨波
张磊
顾耀鼎
梁李国
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
State Grid Liaoning Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Liaoning Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, State Grid Liaoning Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201811143855.4A priority Critical patent/CN109489716A/en
Publication of CN109489716A publication Critical patent/CN109489716A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00Measuring or testing not otherwise provided for
    • G01D21/02Measuring two or more variables by means not covered by a single other subclass

Abstract

The present invention relates to a kind of temperature and humidity control system working state monitoring instrument, its structure is, the receiving end of data-acquisition loop is connected by connecting terminal block with temperature and humidity control system, the output end of data-acquisition loop is connect with the input terminal of A/D conversion module, the output end of A/D conversion module is connected with single-chip microcontroller, the output end of single-chip microcontroller is sequentially connected gate trigger circuit and D.C. contactor, and the output end of D.C. contactor connects buzzer;The crystal oscillator clock chip is connected with single-chip microcontroller.After the device carries out analog-to-digital conversion by 7 analog quantitys of acquisition temperature and humidity control system, the working condition of temperature and humidity control system is judged using mcu programming, gate circuit, and a distant place and local alarm can be issued in temperature and humidity control system fault case in time, it ensure that the safe and stable operation of equipment and power grid.

Description

Temperature and humidity control system working state monitoring instrument
Technical field
The present invention relates to a kind of automatization controlling device more particularly to a kind of temperature and humidity control system working state monitorings Instrument is mainly used in each voltage class switchgear in electric power monitoring system, mechanism case, terminal box, the temperature installed in convergence control cabinet The operating status of humidity regulation system, especially service condition are severe, and humiture control system whole year, which puts into operation, leads to element fault The higher place of rate.
Background technique
Humiture control system is common secondary auxiliary device in electric system, is mounted on switchgear, mechanism case, terminal In the closings screen cabinet such as case, convergence control cabinet, guarantee that the temperature and humidity of sealed environment meets the requirement of electrical component and mechanical equipment to environment, Its stable operation directly affects equipment, power grid security.Since quantity radix is very big, and whole year 90% on electricity operation, failure rate also compared with Height, defect sum occupy first of various kinds of equipment defect, and the regulation of the particularity and O&M tour vacuum phase due to its installation site, The fault discovery time much lags behind defect time of origin, hides some dangers for safety in production.In recent years, due to humiture control The system failure leads to the corrosion of mechanical organ, operation clamping stagnation, the abnormal operating state of electronic component, terminal block corrosion, insulation Decline and all kinds of derivative failures happen occasionally, and seriously threaten power network safety operation.
Summary of the invention
The present invention is directed to above-mentioned problems of the prior art, has developed a kind of temperature and humidity control system working condition prison Instrument is surveyed, monitors the working condition of humiture control system, it is non-just in temperature and humidity control device state of a control and execution original part appearance It can be alerted immediately when normal working condition.
Technical scheme is as follows:
Temperature and humidity control system working state monitoring instrument, shell is interior to be equipped with data-acquisition loop, A/D conversion module, single-chip microcontroller, door Control trigger circuit, D.C. contactor and crystal oscillator clock chip, the receiving end of data-acquisition loop by connecting terminal block with it is warm and humid Spend control system be connected, the output end of data-acquisition loop is connect with the input terminal of A/D conversion module, A/D conversion module it is defeated Outlet is connected with single-chip microcontroller, and the output end of single-chip microcontroller is sequentially connected gate trigger circuit and D.C. contactor, D.C. contactor Output end connects buzzer;The crystal oscillator clock chip is connected with single-chip microcontroller.
The shell is equipped with connecting terminal block, external power supply terminal block and buzzer.
The data-acquisition loop includes supply voltage acquisition circuit, heating plate voltage acquisition circuit, heating plate electric current Acquisition circuit, ventilation fan current acquisition circuit, temperature acquisition circuit and humidity collection circuit, the supply voltage acquisition circuit It is connected by connecting terminal with the power supply of temperature and humidity control system, the heating plate voltage acquisition circuit and heating plate electric current are adopted Collection circuit is connected by connecting terminal with the heating plate of temperature and humidity control system, and ventilation fan current acquisition circuit passes through connecting terminal It is connect with the ventilation fan of temperature and humidity control system;Temperature acquisition circuit is passed by the temperature of connecting terminal and temperature and humidity control system Sensor is connected;The humidity collection circuit is connected by connecting terminal with the humidity sensor of temperature and humidity control system.
The single-chip microcontroller is MCS-51 series 80C51 single-chip microcontroller.
The gate trigger circuit is 74LS20 HD74LS34P chip.
The buzzer is FM-12HB-907.
The connecting terminal block is connect with telemechanical master control device.
Advantages of the present invention effect is as follows:
1. if temperature and humidity control system working state monitoring instrument is sent out immediately temperature and humidity control system is in abnormal operating state It alerts out.
2. there is control loop failure or improper logical states, temperature and humidity control system work shape in temperature and humidity control system State monitor issues alarm immediately.
3. temperature and humidity control system executes original part (heating plate or fan) and breaks down, temperature and humidity control system work shape State monitor issues alarm immediately.
4. temperature and humidity control system working state monitoring instrument provides a pair of of hard contact of alarm, used for telecontrol system.
5. temperature and humidity control system working state monitoring instrument failure response time≤1s, buzzer loudness >=40dB.
6. temperature and humidity control system working state monitoring instrument can find temperature and humidity control system failure without time delay, make to set Standby defect is handled in time, ensure that the safe and stable operation of equipment indirectly.
7. alleviating the work load of operation maintenance personnel, improves working efficiency and equipment automatization is horizontal.
Detailed description of the invention
Fig. 1 is the surface structure schematic diagram of shell of the invention.
Fig. 2 is the working principle of the invention and logic theory schematic block diagram.
Fig. 3 is electrical principle schematic block diagram of the invention.
Fig. 4 is the circuit connection schematic block diagram of temperature and humidity control system.
Fig. 5 is temperature and humidity control system and electrical connection circuit schematic block diagram of the present invention.
In Fig. 1,1-1, shell, 1-2, mounting hole, 1-3, connecting terminal block, 1-4, external power supply terminal block, 1-5, buzzing Device.
Specific embodiment
Embodiment
As shown, temperature and humidity control system working state monitoring instrument, shell is interior to be equipped with data-acquisition loop, A/D conversion Module, single-chip microcontroller, gate trigger circuit, D.C. contactor and crystal oscillator clock chip, the receiving end of data-acquisition loop is by connecing Line terminals row is connected with temperature and humidity control system, and the output end of data-acquisition loop is connect with the input terminal of A/D conversion module, A/ The output end of D conversion module is connected with single-chip microcontroller, and the output end of single-chip microcontroller is sequentially connected gate trigger circuit and D.C. contactor, The output end of D.C. contactor connects buzzer;The crystal oscillator clock chip is connected with single-chip microcontroller.
The shell is equipped with connecting terminal block, external power supply terminal block and buzzer.
The data-acquisition loop includes supply voltage acquisition circuit, heating plate voltage acquisition circuit, heating plate electric current Acquisition circuit, ventilation fan current acquisition circuit, temperature acquisition circuit and humidity collection circuit, the supply voltage acquisition circuit It is connected by connecting terminal with the power supply of temperature and humidity control system, the heating plate voltage acquisition circuit and heating plate electric current are adopted Collection circuit is connected by connecting terminal with the heating plate of temperature and humidity control system, and ventilation fan current acquisition circuit passes through connecting terminal It is connect with the ventilation fan of temperature and humidity control system;Temperature acquisition circuit is passed by the temperature of connecting terminal and temperature and humidity control system Sensor is connected;The humidity collection circuit is connected by connecting terminal with the humidity sensor of temperature and humidity control system.
The single-chip microcontroller is MCS-51 series 80C51 single-chip microcontroller.
The gate trigger circuit is 74LS20 HD74LS34P chip.
The buzzer is FM-12HB-907.
The connecting terminal block is connect with telemechanical master control device.
Steps are as follows for use of the invention:
Using four mounting hole 1-2 of temperature and humidity control system working state monitoring instrument, using M4 screw by Temperature and Humidity Control system System working state monitoring instrument is fixed in the enclosed space, after fixed, according to the following order of connection by temperature and humidity control Each element of system processed accesses temperature and humidity control system working state monitoring instrument, specifically:
Temperature and humidity control system working state monitoring instrument terminal row wiring:
1-2 connecting terminal is in parallel with temperature and humidity control system controller operating voltage;
3-4 connecting terminal and temperature and humidity control system heating plate end voltage parallel;
5-6 connecting terminal is connected with temperature and humidity control system heating plate loop current;
7-8 connecting terminal and temperature and humidity control system ventilation fan end voltage parallel;
9-10 connecting terminal is connected with temperature and humidity control system ventilation fan loop current;
11-12 connecting terminal is connect with temperature sensor;
13-14 connecting terminal is connect with humidity sensor;
15-16 connecting terminal is alarm output contact.
After wiring, engaging means working power, installment work is finished.
When monitoring, device voltage, the heating plate end voltage, heating plate loop current, ventilation in temperature and humidity control system are taken Fanning end voltage, ventilation fan loop current, temperature, humidity, totally 7 analog quantitys access temperature and humidity control system working state monitoring instrument, After carrying out digital-to-analogue conversion to simulation value, using gate circuit and mcu programming, the state of a control of temperature and humidity control system is judged Whether whether normal and element is intact, if being judged as fault case, starts a distant place and local alarm function, prompts related personnel's dress The fault case set.

Claims (7)

1. temperature and humidity control system working state monitoring instrument, it is characterised in that be equipped with data-acquisition loop, A/D modulus of conversion in shell Block, single-chip microcontroller, gate trigger circuit, D.C. contactor and crystal oscillator clock chip, the receiving end of data-acquisition loop pass through wiring Terminal block is connected with temperature and humidity control system, and the output end of data-acquisition loop is connect with the input terminal of A/D conversion module, A/D The output end of conversion module is connected with single-chip microcontroller, and the output end of single-chip microcontroller is sequentially connected gate trigger circuit and D.C. contactor, The output end of D.C. contactor connects buzzer;The crystal oscillator clock chip is connected with single-chip microcontroller.
2. temperature and humidity control system working state monitoring instrument according to claim 1, it is characterised in that on the shell Equipped with connecting terminal block, external power supply terminal block and buzzer.
3. temperature and humidity control system working state monitoring instrument according to claim 1, it is characterised in that the data are adopted Collection circuit includes that supply voltage acquisition circuit, heating plate voltage acquisition circuit, heating plate current acquisition circuit, ventilation fan electric current are adopted Collect circuit, temperature acquisition circuit and humidity collection circuit, the supply voltage acquisition circuit passes through connecting terminal and temperature and humidity The power supply of control system is connected, the heating plate voltage acquisition circuit and heating plate current acquisition circuit by connecting terminal with The heating plate of temperature and humidity control system is connected, and ventilation fan current acquisition circuit is changed by connecting terminal and temperature and humidity control system Gas fan connection;Temperature acquisition circuit is connected by connecting terminal with the temperature sensor of temperature and humidity control system;The humidity Acquisition circuit is connected by connecting terminal with the humidity sensor of temperature and humidity control system.
4. temperature and humidity control system working state monitoring instrument according to claim 1, it is characterised in that the single-chip microcontroller For MCS-51 series 80C51 single-chip microcontroller.
5. temperature and humidity control system working state monitoring instrument according to claim 1, it is characterised in that the gate touching Power Generation Road is 74LS20 HD74LS34P chip.
6. temperature and humidity control system working state monitoring instrument according to claim 1, it is characterised in that the buzzer For FM-12HB-907.
7. temperature and humidity control system working state monitoring instrument according to claim 1, it is characterised in that the terminals Son row connect with telemechanical master control device.
CN201811143855.4A 2018-09-29 2018-09-29 Temperature and humidity control system working state monitoring instrument Pending CN109489716A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811143855.4A CN109489716A (en) 2018-09-29 2018-09-29 Temperature and humidity control system working state monitoring instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811143855.4A CN109489716A (en) 2018-09-29 2018-09-29 Temperature and humidity control system working state monitoring instrument

Publications (1)

Publication Number Publication Date
CN109489716A true CN109489716A (en) 2019-03-19

Family

ID=65690629

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811143855.4A Pending CN109489716A (en) 2018-09-29 2018-09-29 Temperature and humidity control system working state monitoring instrument

Country Status (1)

Country Link
CN (1) CN109489716A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050043861A1 (en) * 2003-08-19 2005-02-24 Thompson Michael J. Integrated protection and control system for a power system substation
CN202120152U (en) * 2011-06-23 2012-01-18 华北电网有限公司唐山供电公司 Temperature and humidity controller with self-checking capability
CN203054623U (en) * 2012-06-12 2013-07-10 南通恒鼎重型机床有限公司 Condensation automatic controller
CN103516052A (en) * 2013-10-12 2014-01-15 河南开启电力实业有限公司 Power distribution equipment on-line monitoring early-warning terminal
CN203813533U (en) * 2014-05-12 2014-09-03 陕西思普瑞数码有限公司 Monitoring system for power supply and distribution line
CN104617495A (en) * 2014-12-15 2015-05-13 国家电网公司 Outdoor cabinet anti-condensation device and control method thereof
CN207490604U (en) * 2017-09-22 2018-06-12 武汉微智创大科技有限公司 A kind of wireless distributed monitoring device and system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050043861A1 (en) * 2003-08-19 2005-02-24 Thompson Michael J. Integrated protection and control system for a power system substation
CN202120152U (en) * 2011-06-23 2012-01-18 华北电网有限公司唐山供电公司 Temperature and humidity controller with self-checking capability
CN203054623U (en) * 2012-06-12 2013-07-10 南通恒鼎重型机床有限公司 Condensation automatic controller
CN103516052A (en) * 2013-10-12 2014-01-15 河南开启电力实业有限公司 Power distribution equipment on-line monitoring early-warning terminal
CN203813533U (en) * 2014-05-12 2014-09-03 陕西思普瑞数码有限公司 Monitoring system for power supply and distribution line
CN104617495A (en) * 2014-12-15 2015-05-13 国家电网公司 Outdoor cabinet anti-condensation device and control method thereof
CN207490604U (en) * 2017-09-22 2018-06-12 武汉微智创大科技有限公司 A kind of wireless distributed monitoring device and system

Similar Documents

Publication Publication Date Title
CN101943921B (en) Intelligent control method and intelligent control device of transformer cooling system
US20140088780A1 (en) Automatic local electric management system
CN104124916B (en) High aititude photovoltaic plant electric network fault simulated testing system mobile detection apparatus
CN110350591B (en) Diesel generating set parallel operation system
AU2017271591B2 (en) Utility meter for use with distributed generation device
CN201820129U (en) Intelligent controller of transformer cooling system
CN105098643B (en) Power distribution automation cabinet and its application
JP6429691B2 (en) Solar power generation system and power conditioner
JPWO2018221040A1 (en) Power storage system
CN109489716A (en) Temperature and humidity control system working state monitoring instrument
Prudenzi et al. Smartening hospital electrical distribution for enhancing resilience
CN205882432U (en) Intelligent MNS low -voltage switchgear
CN205159875U (en) Low -voltage distribution box
CN107659672A (en) A kind of mist calculating formula dynamic environment monitoring device applied to computer room
CN204030624U (en) A kind of grid-connected anti-backflow device
CN208689459U (en) A kind of automatic Temperature and Humidity Control protection data acquisition device of high-tension switch cabinet
CN203951060U (en) A kind of comprehensive distribution box
CN208923839U (en) A kind of novel change distribution three-phase imbalance adjustment device
CN203813296U (en) Intelligent handcart breaker and intelligentized switch cabinet provided with the breaker
CN203734614U (en) Novel intelligent photovoltaic combiner box
CN108646826A (en) A kind of closed high-voltage board intelligence non-electric quantity protection controlling transmission terminal installation
CN104617563B (en) The special protective relaying device of ring main unit
Li et al. Demonstration and Application of AC/DC Hybrid Power Supply System in Building
CN209231784U (en) A kind of aluminium cell control device
CN205159848U (en) Low voltage distribution box secondary output structure

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20190319