CN2065775U - Multi-function electronic temp. controller - Google Patents
Multi-function electronic temp. controller Download PDFInfo
- Publication number
- CN2065775U CN2065775U CN 89216332 CN89216332U CN2065775U CN 2065775 U CN2065775 U CN 2065775U CN 89216332 CN89216332 CN 89216332 CN 89216332 U CN89216332 U CN 89216332U CN 2065775 U CN2065775 U CN 2065775U
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- China
- Prior art keywords
- receiver
- temperature
- controller
- function electronic
- function
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Abstract
The utility model discloses a multi-function electronic temperature controller which belongs to the field of temperature control and is especially suitable for the temperature control of conveyer belts. The multi-function electronic temperature controller comprises a sensor, a receiver, and an electromagnetic valve. The multi-function electronic temperature controller can achieve cooling function by sprinkling and warning function by closing down. The device has reliable temperature measurement, so the accidents of the slippage of the conveyer belt for stall and fire for temperature rise can be effectively avoided. The device has the advantages of simple structure design, low cost, and cheap price and is an ideal product for controlling the temperature of the conveyer belt.
Description
The utility model relates to a kind of temperature controller, particularly controls belt temperature and avoids the device that catches fire.
Belt feeder transported material occasion is used in mine, chemical plant etc., and when belt stall is skidded, at head, tail easily causes high temperature, and as can not in time solving, temperature is long-pending more high more, easily causes firing accident at last, causes fire.At present, use meltable rod and make sensor for preventing that belt feeder from catching fire, when temperature raises, the metal bar fusing, make the control device action, realize watering, cooling, fire-extinguishing function concurrently, some research unit's attempt utilizes system controlled by computer to realize the purpose of stopping, reporting to the police after belt stall is skidded, but this scheme is complex circuit not only, and costs an arm and a leg.
The purpose of this utility model provides a kind of easy attemperating unit, and it can prevent effectively that the belt feeder temperature rise from catching fire, and the shutdown of in time cutting off the power supply, reports to the police.
The novel purpose of this use is achieved in that the sensor of this device adopts the mercury thermometer that has electric contact, electric contact is connected to 1 ' and 2 ' two points as the input end of receiver, the a pair of normal opened contact of the execution relay J of this receiver connects the power supply and the electric bell of solenoid valve, and a pair of normally closed contact connects the control loop of transporter.
Receiver power supply adopts DW
1And DW
2Two stabilivolts are realized dual voltage stabilizing; The shell of receiver is explosion-proof.
This device is owing to adopt mercury temperature sensor, so thermometric is accurately and reliably, effectively avoided the fire failure of skidding and causing owing to belt stall, again since controller line design very simple, so easy to manufacture, cheap.
Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a receiver wiring diagram of the present utility model.
Among Fig. 1:
1-mercury temperature pin, the 2-water pipe
3-solenoid valve 4-receiver
Specifically describe the course of action of this device below according to Fig. 2:
One, power circuit: by D
1, YM
1, C
1, C
2, DW
1, DW
2, R
1Form.36 volts of AC power are through D
1After the rectification, C
1, C
2Filtering for satisfying the specific (special) requirements under the coal mine, is adopted DW
1And DW
2Dual voltage stabilizing.Voltage dependent resistor (VDR) YM
2Power-supply fluctuation is shielded R
1Be current-limiting resistance.
Two, on-off circuit: by R
2, R
3, C
3, D
2, D
3, D
4, BC
1, BC
2, J forms
Carry out relay J and have a pair of normally closed contact 4 and 5 and a pair of normal opened contact 3 and 5.4 and 5 are connected on the control loop of transporter, and 3 and 5 are connected on the mains side and the warning electric bell of solenoid valve.When the mercury in the temperature sensor rises to the temperature that mixes up in advance, thereby make contact 1 ' and 2 ' connect make BG
1, BG
2The relay J action is carried out in conducting, and the power supply that disconnects transporter makes its shutdown, connects electromagnetic valve power supply and electric bell, opens the water source and sprinkles water and report to the police.
According to " explosive atmosphere electrical apparatus for explosive atmospheres " B
4The 6th chapter regulation " ... when the inductance element energy storage does not reach the intrinsic safety performance too greatly, can and connect two diodes ... " so carry out relay J D in parallel
3And D
4
R
2, R
3Be biasing resistance, C
3Filtering, D
2To BG
1, BG
2Base---emitter-base bandgap grading shields,
Receiver is packed into after the epoxy resin pouring in the explosion-resistant enclosure, this explosion-resistant enclosure is the product of Xuzhou explosion-proof electric apparatus factory, and examine by electrical apparatus for explosive atmospheres manufacturing inspection rules (GB1336-77) and (intrinsically safe type electrical apparatus for explosive atmospheres manufacturing inspection temporary provisions), meet the regulation of mining KBH equipment.
Solenoid valve and electric contact temp sensor are bought the product of selling on the market, and wherein the shell of solenoid valve is explosion-proof, and the electric contact temp sensor is an intrinsically safe type.
Claims (3)
1, a kind of temperature controller, particularly control belt temperature and avoid the device of fire, this device is made up of sensor, receiver, solenoid valve three parts, it is characterized in that: sensor adopts the mercury thermometer that has electric contact, electric contact is connected to 1 ' and 2 ' two points as the input end of receiver, the a pair of normal opened contact of the execution relay J of this receiver connects the power supply and the electric bell of solenoid valve, and a pair of normally closed contact connects the control loop of transporter.
2, controller according to claim 1 is characterized in that receiver power supply voltage stabilizing employing DW
1And DW
2Two stabilivolts are carried out relay J and are connect two diodes.
3, controller according to claim 2, the shell that it is characterized in that receiver is explosion-proof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89216332 CN2065775U (en) | 1989-12-13 | 1989-12-13 | Multi-function electronic temp. controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89216332 CN2065775U (en) | 1989-12-13 | 1989-12-13 | Multi-function electronic temp. controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2065775U true CN2065775U (en) | 1990-11-14 |
Family
ID=4871793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89216332 Withdrawn CN2065775U (en) | 1989-12-13 | 1989-12-13 | Multi-function electronic temp. controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2065775U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106200616A (en) * | 2010-05-14 | 2016-12-07 | 哈尼施费格尔技术公司 | The Periodic decomposition analysis monitored for remote machine |
-
1989
- 1989-12-13 CN CN 89216332 patent/CN2065775U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106200616A (en) * | 2010-05-14 | 2016-12-07 | 哈尼施费格尔技术公司 | The Periodic decomposition analysis monitored for remote machine |
| CN106200616B (en) * | 2010-05-14 | 2019-11-19 | 久益环球表层采矿公司 | Periodic decomposition analysis for remote machine monitoring |
| US11092951B2 (en) | 2010-05-14 | 2021-08-17 | Joy Global Surface Mining Inc | Method and system for predicting failure of mining machine crowd system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |