CN204478510U - A kind of mine flameproof and intrinsic safety type heater electric controller - Google Patents
A kind of mine flameproof and intrinsic safety type heater electric controller Download PDFInfo
- Publication number
- CN204478510U CN204478510U CN201520144338.4U CN201520144338U CN204478510U CN 204478510 U CN204478510 U CN 204478510U CN 201520144338 U CN201520144338 U CN 201520144338U CN 204478510 U CN204478510 U CN 204478510U
- Authority
- CN
- China
- Prior art keywords
- output
- terminal
- circuit part
- input
- intrinsic safety
- 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.)
- Expired - Fee Related
Links
Landscapes
- Control Of Resistance Heating (AREA)
Abstract
The utility model relates to a kind of mine flameproof and intrinsic safety type heater electric controller, and it comprises heating tube and automatic control module; Heating tube is connected on three-phase high-voltage power supply line; Automatic control module comprises mu balanced circuit part, intrinsic safety terminal importation, isolation control circuit part and terminal output; The input of mu balanced circuit part accesses three-phase high-voltage power supply line through transformer T1, the input of the output termination isolation control circuit part of mu balanced circuit part and intrinsic safety terminal importation, the input of the output connecting terminal output of described isolation control circuit part.The utility model is easy to use, stable performance, and has the functions such as overload, high water level, low water level protection, temperature protection, anti-dry protection and leakage current protection.
Description
Technical field
The utility model belongs to controller field, is specifically related to a kind of mine flameproof and intrinsic safety type heater electric controller, is applicable to have in the mine of explosion risk gas and coal dust.
Background technology
At present; at interchange 50Hz; under rated operational voltage 660V condition; do not have directly to control the double pouring type heater heater of the RAY-3.9/660 of rated current within 15A (A) mining increasing peace; and all there is no the controller that can realize corresponding function for high water level, overload, low water level anti-dry, overtemperature and leakage current protection, cannot realize stopping and heating with the object reaching drinking water in heating water tank.
Utility model content
Technical problem to be solved in the utility model there is provided a kind of easy to use, stable performance, has overload; high water level; low water level is protected, temperature protection, the mine flameproof and intrinsic safety type heater electric controller of anti-dry protection and leakage current protection function.
The technical scheme that the utility model adopts is as follows:
A kind of mine flameproof and intrinsic safety type heater electric controller, it comprises heating tube 1 and automatic control module 2; Described heating tube 1 is connected on three-phase high-voltage power supply line; Described automatic control module 2 comprises mu balanced circuit part 2-1, intrinsic safety terminal importation 2-2, isolation control circuit part 2-3 and terminal output 2-4; The input of described mu balanced circuit part 2-1 accesses three-phase high-voltage power supply line through transformer T1, the input of the output termination isolation control circuit part 2-3 of described mu balanced circuit part 2-1 and intrinsic safety terminal importation 2-2, the input of the output connecting terminal output 2-4 of described isolation control circuit part 2-3.
Further, described mu balanced circuit part 2-1 comprises dual output transformer T2, wheatstone bridge D13 ~ D14, electric capacity C1 ~ C4, three terminal regulator VR1 ~ VR3 and resistance R4 ~ R7; The secondary side of a side joint transformer T1 of described dual output transformer T2, two outputs of the secondary side of described dual output transformer T2 connect the input of wheatstone bridge D13 and wheatstone bridge D14 respectively, described electric capacity C1 is connected in parallel on the output of described wheatstone bridge D13, input and the ground end of described three terminal regulator VR1 are connected in parallel on electric capacity C1 two ends, and described electric capacity C2 is connected in parallel on the output of three terminal regulator VR1 with on ground end; Described electric capacity C3 is connected in parallel on the output of described wheatstone bridge D14, input and the ground end of described three terminal regulator VR3 are connected in parallel on electric capacity C3 two ends, the input of the output termination three terminal regulator VR2 of described three terminal regulator VR3, between the output that described electric capacity C4 is connected in parallel on three terminal regulator VR2 and ground;
Described intrinsic safety terminal importation 2-2 comprises Interface Terminal F2 ~ F5;
Described isolation control circuit part 2-3 comprises photoelectrical coupler U1 ~ U4, triode Q1 ~ Q4, Zener diode D1 ~ D4, relay K 1 ~ K4, breakdown diode D5, D7, D9 and D11, described Interface Terminal F2 ~ F5 as intrinsic safety terminal by connecting line respectively through breakdown diode D5, D7, D9, D11 accesses corresponding light electric coupler U1 ~ U4 input cathode, the output of described three terminal regulator VR2 accesses photoelectrical coupler U1 ~ U4 input anode through resistance R7 ~ R4 respectively, the output of described photoelectrical coupler U1 ~ U4 connects base stage and the colelctor electrode of triode Q1 ~ Q4 respectively, the grounded emitter of described triode Q1 ~ Q4, the colelctor electrode of described triode Q1 ~ Q4 connects the output of three terminal regulator VR1 respectively after Zener diode D1 ~ D4, the coil of described relay K 1 ~ K4 is connected in parallel on the two ends of Zener diode D1 ~ D4 respectively, the normally opened contact of described relay K 1 ~ K4 meets the Interface Terminal F9 ~ F6 in described connecting terminal output 2-4 respectively.
Further, the utility model also comprises zero sequence magnetic test coil 4, leakage relay 3 and also contacts device KM; The primary winding of described zero sequence magnetic test coil 4 is socketed on three-phase high-voltage power supply line, the secondary coil of described zero sequence magnetic test coil 4 accesses the respective input of described leakage relay 3, described also contacts device KM switch series is associated on three-phase high-voltage power supply line, and described also contacts device KM coil is connected with the corresponding output end of leakage relay 3.
Further, described heating tube 1 comprises heating resistor R1 ~ R3; Described heating resistor R1 is connected in parallel between A, B phase of three-phase high-voltage power supply line, and described heating resistor R2 is connected in parallel between A, C phase of three-phase high-voltage power supply line, and described heating resistor R3 is connected in parallel between B, C phase of three-phase high-voltage power supply line.
Further, the utility model also comprises breakdown diode D6, D8, D10 and D12, and described breakdown diode D6, D8, D10 and D12 are connected in parallel on breakdown diode D5, D7, D9 and D11 respectively successively.
The beneficial effects of the utility model are the automatic control modules being comprised mu balanced circuit part, intrinsic safety terminal importation, isolation control circuit part and terminal output by design; this heater is made to have high water level, overload, low water level anti-dry, overtemperature and leakage current protection function; additionally by the three-phase high-voltage power supply line being communicated with heating tube, zero sequence magnetic test coil, leakage relay and also contacts device are installed, ensure that the security of heating tube.
Accompanying drawing explanation
Accompanying drawing 1 is circuit theory diagrams of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing 1, the utility model is described in further detail.
The present embodiment comprises heating tube 1 and automatic control module 2; Described heating tube 1 is connected on three-phase high-voltage power supply line; Described automatic control module 2 comprises mu balanced circuit part 2-1, intrinsic safety terminal importation 2-2, isolation control circuit part 2-3 and terminal output 2-4; The input of described mu balanced circuit part 2-1 accesses three-phase high-voltage power supply line through transformer T1, the input of the output termination isolation control circuit part 2-3 of described mu balanced circuit part 2-1 and intrinsic safety terminal importation 2-2, the input of the output connecting terminal output 2-4 of described isolation control circuit part 2-3.
Further, described mu balanced circuit part 2-1 comprises dual output transformer T2, wheatstone bridge D13 ~ D14, electric capacity C1 ~ C4, three terminal regulator VR1 ~ VR3 and resistance R4 ~ R7; The secondary side of a side joint transformer T1 of described dual output transformer T2, two outputs of the secondary side of described dual output transformer T2 connect the input of wheatstone bridge D13 and wheatstone bridge D14 respectively, described electric capacity C1 is connected in parallel on the output of described wheatstone bridge D13, input and the ground end of described three terminal regulator VR1 are connected in parallel on electric capacity C1 two ends, and described electric capacity C2 is connected in parallel on the output of three terminal regulator VR1 with on ground end; Described electric capacity C3 is connected in parallel on the output of described wheatstone bridge D14, input and the ground end of described three terminal regulator VR3 are connected in parallel on electric capacity C3 two ends, the input of the output termination three terminal regulator VR2 of described three terminal regulator VR3, between the output that described electric capacity C4 is connected in parallel on three terminal regulator VR2 and ground;
Described intrinsic safety terminal importation 2-2 comprises Interface Terminal F2 ~ F5;
Described isolation control circuit part 2-3 comprises photoelectrical coupler U1 ~ U4, triode Q1 ~ Q4, Zener diode D1 ~ D4, relay K 1 ~ K4, breakdown diode D5, D7, D9 and D11, described Interface Terminal F2 ~ F5 as intrinsic safety terminal by connecting line respectively through breakdown diode D5, D7, D9, D11 accesses corresponding light electric coupler U1 ~ U4 input cathode, the output of described three terminal regulator VR2 accesses photoelectrical coupler U1 ~ U4 input anode through resistance R7 ~ R4 respectively, the output of described photoelectrical coupler U1 ~ U4 connects base stage and the colelctor electrode of triode Q1 ~ Q4 respectively, the grounded emitter of described triode Q1 ~ Q4, the colelctor electrode of described triode Q1 ~ Q4 connects the output of three terminal regulator VR1 respectively after Zener diode D1 ~ D4, the coil of described relay K 1 ~ K4 is connected in parallel on the two ends of Zener diode D1 ~ D4 respectively, the normally opened contact of described relay K 1 ~ K4 meets the Interface Terminal F9 ~ F6 in described connecting terminal output 2-4 respectively.
Further, the utility model also comprises zero sequence magnetic test coil 4, leakage relay 3 and also contacts device KM; The primary winding of described zero sequence magnetic test coil 4 is socketed on three-phase high-voltage power supply line, the secondary coil of described zero sequence magnetic test coil 4 accesses the respective input of described leakage relay 3, described also contacts device KM switch series is associated on three-phase high-voltage power supply line, and described also contacts device KM coil is connected with the corresponding output end of leakage relay 3.
Further, described heating tube 1 comprises heating resistor R1 ~ R3; Described heating resistor R1 is connected in parallel between A, B phase of three-phase high-voltage power supply line, and described heating resistor R2 is connected in parallel between A, C phase of three-phase high-voltage power supply line, and described heating resistor R3 is connected in parallel between B, C phase of three-phase high-voltage power supply line.
Further, the utility model also comprises breakdown diode D6, D8, D10 and D12, and described breakdown diode D6, D8, D10 and D12 are connected in parallel on breakdown diode D5, D7, D9 and D11 respectively successively.
The explosion-proof performance of the mine flameproof and intrinsic safety type heater electric controller designed by the utility model, according to the regulation of standard GB/T 3836.1-2000 " Electric Equipment in Explosive Gas Atmosphere part 1: General Requirement ", GB3836.2 – 2000 " Electric Equipment in Explosive Gas Atmosphere part 2: flame-proof type " d " " and GB3836.4 – 2000 " Electric Equipment in Explosive Gas Atmosphere the 4th part: essential safe type " i " ", makes flameproof and intrinsic safety.
Operation principle of the present utility model is as follows:
Protection and control system adopts circuit board centralized Control and signal isolation, controls system, and complete heating, add water, short circuit, the protection such as lack of water.
Wherein the principle of short-circuit protection is as follows:
When load current reaches short circuit current, air switch disconnects, and electric cabinet trips.When dispatching from the factory, short-circuit protection is generally adjusted to 14A.After short-circuit protection action, protector can not automatically reset.After discharging fault, must restart, electric cabinet could start.
Wherein the principle of leakage current protection is as follows:
Leakage current protector action when leakage current meets or exceeds 30mA when the heater is on, cuts off heater power source and exports, and have corresponding action to indicate.First must fix a breakdown after protector action, then hand-reset, then power up to heater.
Wherein the operation principle of control circuit is as follows:
After this electric controller powers on, press start button, power supply instruction is lighted.Control cabinet puts into operation, and entering water electromagnetic valve is opened automatically, and water tank starts water inlet.By the time upper water box water level reaches in limited time lower, and the action of anti-dry ball float starts heating, the drinking water in heating water tank.By the time, when water temperature reaches set temperature value, temperature controller action, contactor deenergization stops heating.Upper water box water level reaches in limited time high, and actuating of relay magnetic valve dead electricity stops water process processed.
The above embodiment is only preferred embodiment of the present utility model, and is not the exhaustive of the feasible enforcement of the utility model.For persons skilled in the art, to any apparent change done by it under the prerequisite not deviating from the utility model principle and spirit, all should be contemplated as falling with within claims of the present utility model.
Claims (5)
1. a mine flameproof and intrinsic safety type heater electric controller, is characterized in that: it comprises heating tube (1) and automatic control module (2); Described heating tube (1) is connected on three-phase high-voltage power supply line; Described automatic control module (2) comprises mu balanced circuit part (2-1), intrinsic safety terminal importation (2-2), isolation control circuit part (2-3) and terminal output (2-4); The input of described mu balanced circuit part (2-1) accesses three-phase high-voltage power supply line through transformer T1, the input of output termination isolation control circuit part (2-3) of described mu balanced circuit part (2-1) and intrinsic safety terminal importation (2-2), the input of the output connecting terminal output (2-4) of described isolation control circuit part (2-3).
2. a kind of mine flameproof and intrinsic safety type heater electric controller according to claim 1, is characterized in that: described mu balanced circuit part (2-1) comprises dual output transformer T2, wheatstone bridge D13 ~ D14, electric capacity C1 ~ C4, three terminal regulator VR1 ~ VR3 and resistance R4 ~ R7; The secondary side of a side joint transformer T1 of described dual output transformer T2, two outputs of the secondary side of described dual output transformer T2 connect the input of wheatstone bridge D13 and wheatstone bridge D14 respectively, described electric capacity C1 is connected in parallel on the output of described wheatstone bridge D13, input and the ground end of described three terminal regulator VR1 are connected in parallel on electric capacity C1 two ends, and described electric capacity C2 is connected in parallel on the output of three terminal regulator VR1 with on ground end; Described electric capacity C3 is connected in parallel on the output of described wheatstone bridge D14, input and the ground end of described three terminal regulator VR3 are connected in parallel on electric capacity C3 two ends, the input of the output termination three terminal regulator VR2 of described three terminal regulator VR3, between the output that described electric capacity C4 is connected in parallel on three terminal regulator VR2 and ground;
Described intrinsic safety terminal importation (2-2) comprises Interface Terminal F2 ~ F5;
Described isolation control circuit part (2-3) comprises photoelectrical coupler U1 ~ U4, triode Q1 ~ Q4, Zener diode D1 ~ D4, relay K 1 ~ K4, breakdown diode D5, D7, D9 and D11, described Interface Terminal F2 ~ F5 as intrinsic safety terminal by connecting line respectively through breakdown diode D5, D7, D9, D11 accesses corresponding light electric coupler U1 ~ U4 input cathode, the output of described three terminal regulator VR2 accesses photoelectrical coupler U1 ~ U4 input anode through resistance R7 ~ R4 respectively, the output of described photoelectrical coupler U1 ~ U4 connects base stage and the colelctor electrode of triode Q1 ~ Q4 respectively, the grounded emitter of described triode Q1 ~ Q4, the colelctor electrode of described triode Q1 ~ Q4 connects the output of three terminal regulator VR1 respectively after Zener diode D1 ~ D4, the coil of described relay K 1 ~ K4 is connected in parallel on the two ends of Zener diode D1 ~ D4 respectively, the normally opened contact of described relay K 1 ~ K4 meets the Interface Terminal F9 ~ F6 in described connecting terminal output (2-4) respectively.
3. a kind of mine flameproof and intrinsic safety type heater electric controller according to claim 1, is characterized in that: it also comprises zero sequence magnetic test coil (4), leakage relay (3) and also contacts device KM; The primary winding of described zero sequence magnetic test coil (4) is socketed on three-phase high-voltage power supply line, the secondary coil of described zero sequence magnetic test coil (4) accesses the respective input of described leakage relay (3), described also contacts device KM switch series is associated on three-phase high-voltage power supply line, and described also contacts device KM coil is connected with the corresponding output end of leakage relay (3).
4. a kind of mine flameproof and intrinsic safety type heater electric controller according to claim 1, is characterized in that: described heating tube (1) comprises heating resistor R1 ~ R3; Described heating resistor R1 is connected in parallel between A, B phase of three-phase high-voltage power supply line, and described heating resistor R2 is connected in parallel between A, C phase of three-phase high-voltage power supply line, and described heating resistor R3 is connected in parallel between B, C phase of three-phase high-voltage power supply line.
5. a kind of mine flameproof and intrinsic safety type heater electric controller according to claim 1, it is characterized in that: it also comprises breakdown diode D6, D8, D10 and D12, described breakdown diode D6, D8, D10 and D12 are connected in parallel on breakdown diode D5, D7, D9 and D11 respectively successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520144338.4U CN204478510U (en) | 2015-03-15 | 2015-03-15 | A kind of mine flameproof and intrinsic safety type heater electric controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520144338.4U CN204478510U (en) | 2015-03-15 | 2015-03-15 | A kind of mine flameproof and intrinsic safety type heater electric controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204478510U true CN204478510U (en) | 2015-07-15 |
Family
ID=53634298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520144338.4U Expired - Fee Related CN204478510U (en) | 2015-03-15 | 2015-03-15 | A kind of mine flameproof and intrinsic safety type heater electric controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204478510U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105824261A (en) * | 2016-05-04 | 2016-08-03 | 徐州五洋科技股份有限公司 | Intrinsically safe circuit for coal mine electric control switch |
-
2015
- 2015-03-15 CN CN201520144338.4U patent/CN204478510U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105824261A (en) * | 2016-05-04 | 2016-08-03 | 徐州五洋科技股份有限公司 | Intrinsically safe circuit for coal mine electric control switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201438640U (en) | Energy storage system used for balancing grid load | |
| CN203466383U (en) | Intelligent static safe energy-saving multifunctional socket with zero power consumption | |
| CN203932972U (en) | Lighning proof type monophase leakage protector | |
| CN204243728U (en) | Transformer overload protection warning device | |
| CN201219155Y (en) | Multi-functional power supply socket | |
| CN203745563U (en) | Low-voltage switchgear electrical performance integrated testing stand | |
| CN204478510U (en) | A kind of mine flameproof and intrinsic safety type heater electric controller | |
| CN203786524U (en) | Novel main transformer cooler control circuit | |
| CN205429890U (en) | It goes up switch FTU controller to adapt to net post that joins in marriage that little power supply circuit reclosed | |
| CN209045926U (en) | A kind of intelligent socket | |
| CN201515205U (en) | Earth leakage checking protective circuit | |
| CN202978217U (en) | Single-phase electric leakage zero interruption protective switch | |
| CN204314645U (en) | A kind of low-voltage distribution system by screen break-make automaton | |
| CN104820406A (en) | Small power automatic operation grid-connected power generation system for oil associated gas | |
| CN205265226U (en) | High performance electric leakage electric cabinet | |
| CN201422007Y (en) | Electric leakage inspecting protection circuit | |
| CN204927704U (en) | Convertible ground wire protected mode's leakage protection plug | |
| CN206806271U (en) | The anti-power transmission automatic disconnecting device of power distribution network low pressure | |
| CN203339651U (en) | Multifunctional air switch | |
| CN208522277U (en) | A kind of voltage transformer cabinet and its voltage transformer secondary control circuit | |
| CN2899225Y (en) | Break zero-loss phase protecting distribution box | |
| CN205141287U (en) | Can change ground wire protected mode's leakage protection plug | |
| CN100358210C (en) | Anti-shock anti-short circuit no-contact energy saving safety device for three phase AC power source | |
| CN204089151U (en) | A kind of family with leakage current protection device table case | |
| CN203367980U (en) | Distribution box with temperature protection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20150715 |