CN2681024Y - Explosion-proof warm air curtain machine - Google Patents
Explosion-proof warm air curtain machine Download PDFInfo
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- CN2681024Y CN2681024Y CN 200320128703 CN200320128703U CN2681024Y CN 2681024 Y CN2681024 Y CN 2681024Y CN 200320128703 CN200320128703 CN 200320128703 CN 200320128703 U CN200320128703 U CN 200320128703U CN 2681024 Y CN2681024 Y CN 2681024Y
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Abstract
The utility model relates to an explosion-proof warm air curtain machine, comprising an electric heating part, an air sending part, a casing part and an explosion-proof control box. The electric heating part is composed of an electric heating pipe and an explosion-proof connecting box of the electric heating pipe, and the connecting terminal of the electric heating pipe is connected with a screw explosion-proof face adopted by the connecting box. A lead wire is connected with a wire connecting terminal in an explosion-proof cavity directly, the other end of the wire connecting terminal is in a connecting cavity, and an external connecting cable is connected with the explosion-proof control box through a flexible sealed pipe. The air sending part is composed of an explosion-proof electric motor and cross-flow type fans, the fans are symmetrically arranged at both sides of the electric motor in the shaft of the electric motor direction, both ends are supported by a bearing frame which is fixed on the casing, and the lead wire of a blower is connected with the explosion-proof control box through the flexible seal pipe. A control circuit part is arranged in the explosion-proof control box, the output terminal of a start-up circuit in the control circuit is connected with the input terminal of the delay circuitof the blower, the output terminal of the delay circuit of the blower is connected with the input terminal of the overload protection circuit of the blower, and the output terminal of the overload protection circuit of the blower is connected with an indicating lamp which is connected with the explosion-proof electric motor. The utility model is the explosion-proof warm air curtain machine having high thermal efficiency and low cost.
Description
Technical field: the utility model relates to a kind of inflammable, explosive place heating and insulation electrical appliance, especially a kind of explosion-proof hot air curtain device.
Background technology: at present, the heating of inflammable, explosive place is adopted dual mode with insulation: a kind of is remote conveying, all electrical appliance parts are placed outside the flame proof district, by other forms hot-air is transported to the flame proof district, this mode energy consumption is many, heat loss is big and cost is high; The explosion-proof air-conditioner of another kind of employing, the general power of this mode is less, and heat is few, is not suitable for than large space, and costs an arm and a leg.
Summary of the invention: in order to solve the problem of above-mentioned existence, the utility model provides a kind of thermal efficiency height, explosion-proof hot air curtain device that cost is low.
Concrete technical scheme is as follows: a kind of explosion-proof hot air curtain device is characterized in that: it is made up of electrical heating part, air-supply part, housing part and explosion-proof control cabinet; The electrical heating part is made up of electric heating tube and anti-explosion terminal box thereof, the electric heating tube terminals adopt the threaded flame-proof type face to be connected with terminal box, lead-in wire directly inserts on the explosion-proof chamber internal wiring terminal, and the terminal other end is in wire connection cavity, and external cable is connected with explosion-proof control cabinet by the flexible seal pipe; The air-supply part is made up of fire-proof motor and cross flow fan, and fan is symmetrically placed in motor shaft to both sides, and two ends are supported by the bearing bracket stand that is fixed on the casing, and the blower fan lead-in wire is connected with explosion-proof control cabinet by the flexible seal pipe; Be provided with the control circuit part in the explosion-proof control cabinet; the output of the start-up circuit in the control circuit part is connected with blower fan delay circuit input; blower fan delay circuit output is connected with the input of blower fan overload protecting circuit; the output of blower fan overload protecting circuit is connected with indicator lamp, and indicator lamp is connected with fire-proof motor.
The utility model adopts said structure, compares with remote transporting pattern of the same type, can be directly used in the working site, and heat loss is little, energy consumption is low, reduces mounting cost; With explosion-proof air-conditioner relatively, heat is big, application space is big, price have only its 1/4th.
Description of drawings: the utility model is described in detail below in conjunction with accompanying drawing.
Fig. 1 is a front view of the present utility model.
Fig. 2 is a left view of the present utility model.
Fig. 3 is circuit theory diagrams of the present utility model.
The specific embodiment:
As shown in Figure 1-Figure 3, a kind of explosion-proof hot air curtain device, it is made up of electrical heating part, air-supply part, housing part and explosion-proof control cabinet; The electrical heating part is made up of 12 stainless steel electric heating tube 1 and anti-explosion terminal boxs 2 thereof with spiral heat dissipation sheet, electric heating tube 1 rated voltage 220V, every rated power 830W, electric heating tube 1 terminals adopt the threaded flame-proof type face to be connected with terminal box, lead-in wire directly inserts on the explosion-proof chamber internal wiring terminal, the terminal other end is in wire connection cavity, and external cable is connected with explosion-proof control cabinet 4 by flexible seal pipe 3; The air-supply part is made up of fire-proof motor 5 and cross flow fan 6, fan 6 is symmetrically placed in motor shaft to both sides, and two ends are supported by the bearing bracket stand that is fixed on the casing 7, and the lead-in wire of fire-proof motor 5 is connected with explosion-proof control cabinet 4 by flexible seal pipe 3, fire-proof motor rated voltage 220V, rated power 180W; Casing 7 is made through crooked and welding by cold-rolled steel sheet, is used for fixing machine inner part and guiding outlet and inlet direction; Explosion-proof control cabinet 4 is blocked up by casing, case lid, lead-in wire mouth, fluid sealant and packing ring is formed, and is provided with indicator lamp 8, killer switch 9, start button 10, stop button 11, wire connection cavity 12, device cavity 13 on explosion-proof control cabinet.
Be provided with the control circuit part in the explosion-proof control cabinet; electric control circuit partly comprises control circuit and holding circuit; control circuit is made up of elements such as breaker, A.C. contactor, auxiliary reclay, button, indicator lamps, and holding circuit is made up of devices such as the time relay, comprehensive protection devices.
Described control circuit part, circuit breaker Q F output is connected with A.C. contactor KM input, and the KM output links to each other with electric heating tube R; The end of circuit breaker Q F1 is connected with stop button SB1 one end; the stop button SB1 other end is connected with start button SB2 one end; the other end of start button SB2 is connected with auxiliary reclay KA; auxiliary reclay KA and time relay KT1; be connected with circuit breaker Q F2 one end after the time relay KT2 parallel connection; A.C. contactor KM coil is connected with contact one end of comprehensive protection device coil JDB; the contact of time relay KT2 links to each other with the comprehensive protection device coil JDB contact other end; comprehensive protection device coil JDB and A.C. contactor KM coil; be connected with circuit breaker Q F2 one end after the contact parallel connection of comprehensive protection device coil JDB; indicator lamp HL1 connects with the auxiliary reclay contact and indicator lamp HL2 connects with ac contactor contact the back parallel connection respectively with circuit breaker Q F2 one end; the QF1 other end connects; indicator lamp HL3 one end is connected with comprehensive protection device coil JDB one end; the other end is connected with the end of the comprehensive protection device coil JDB other end with time relay protector contact KT1 with capacitor C with fire-proof motor M1, and the other end of time relay protector contact KT1 is connected with the circuit breaker Q F1 other end.
Circuit breaker Q F is entire circuit break-make and protecting component.Circuit breaker Q F1, QF2 are the break-make and the protecting component of control circuit, place closure state at ordinary times; The QF that closes, then control circuit energising is in and treats duty; This moment, white indicating light was bright, and display power supply is connected.
Press start button SB2, auxiliary reclay coil KA, time-delay relay K T1 coil turn-off time and the equal adhesive of timing closing time relay KT2 coil, the corresponding closing of contact of pressing against, fan electromotor startup this moment is also started working.This moment, green indicating lamp HL3 was bright, showed that fan air-supply is that the road is working properly.After 10 seconds, the KT2 closing of contact, A.C. contactor KM coil gets electric adhesive, and the major and minor contact of KM is all closed.This moment, electric electric heating tube got electric work, and red led HL2 is bright simultaneously, showed that heater circuit is working properly, complete machine work this moment, and hot blast is sent.
Press stop button SB1, KA, KT1, the equal dead electricity of KT2 coil, corresponding auxiliary contact all disconnects, the KM coil losing electricity, and corresponding major and minor contact all disconnects, and the HL2 lamp extinguishes, and shows that heater circuit quits work; At this moment, because the time-lag action of KT1 contact does not disconnect, blower fan works on, to guarantee having time enough that the electric heating tube waste heat is blown to the greatest extent; Delaying time, the KT1 contact disconnects after 3 minutes, and the HL1 lamp extinguishes simultaneously, shows that blower fan quits work.
If breaking down (opening circuit or short circuit) or start capacitor C, blower fan lost efficacy; blower fan stream will change, and comprehensive protection device JDB will produce induction to the electric current that changes this moment, cause the JDB contact to disconnect and make the KM coil losing electricity; this moment, complete machine quit work, thereby played a protective role.
The course of work:
Killer switch on the dextrorotation control cabinet is connected power supply; Press start button, the driven by motor fan begins rotation, and this moment, the cold air along continuous straight runs entered air inlet, vertically blew out air outlet; Automatic leading to of electrothermal tube is to begin heating after 10 seconds, and hot-air is sent from air outlet, the work beginning.
Press stop button, electric heating tube stops heating, and this moment, blower fan did not quit work yet, and the electric heating tube waste heat continues to blow out from air outlet; After 3 minutes, the electric heating tube waste heat blows to the greatest extent, and blower fan quits work automatically; Left-handed killer switch, power-off, end-of-job.
The protection course of work: stall or rotating speed become permanent if motor breaks down, and comprehensive protection device can produce induction to the variation of its electric current, heater circuit is cut off the power supply immediately, in order to avoid burn the generation of electric heating tube and fire incident; The outage of all will tripping immediately of any electric electric heating tube fault that is short-circuited, main circuit breaker; The delayed startup of electric heating tube and the time-delay of blower fan are shut down, and all are for preventing the overheated safety protection function of setting of electric heating tube.
Claims (2)
1, a kind of explosion-proof hot air curtain device is characterized in that: it is made up of electrical heating part, air-supply part, housing part and explosion-proof control cabinet; The electrical heating part is made up of electric heating tube and anti-explosion terminal box thereof, the electric heating tube terminals adopt the threaded flame-proof type face to be connected with terminal box, lead-in wire directly inserts on the explosion-proof chamber internal wiring terminal, and the terminal other end is in wire connection cavity, and external cable is connected with explosion-proof control cabinet by the flexible seal pipe; The air-supply part is made up of fire-proof motor and cross flow fan, and fan is symmetrically placed in motor shaft to both sides, and two ends are supported by the bearing bracket stand that is fixed on the casing, and the blower fan lead-in wire is connected with explosion-proof control cabinet by the flexible seal pipe; Be provided with the control circuit part in the explosion-proof control cabinet; the output of the start-up circuit in the control circuit part is connected with blower fan delay circuit input; blower fan delay circuit output is connected with the input of blower fan overload protecting circuit; the output of blower fan overload protecting circuit is connected with indicator lamp, and indicator lamp is connected with fire-proof motor.
2, a kind of explosion-proof hot air curtain device according to claim 1 is characterized in that: described control circuit part, and circuit breaker Q F output is connected with A.C. contactor KM input, and the KM output links to each other with electric heating tube R; The end of circuit breaker Q F1 is connected with stop button SB1 one end; the stop button SB1 other end is connected with start button SB2 one end; the other end of start button SB2 is connected with auxiliary reclay KA; auxiliary reclay KA and time relay KT1; be connected with circuit breaker Q F2 one end after the time relay KT2 parallel connection; A.C. contactor KM coil is connected with contact one end of comprehensive protection device coil JDB; the contact of time relay KT2 links to each other with the comprehensive protection device coil JDB contact other end; comprehensive protection device coil JDB and A.C. contactor KM coil; be connected with circuit breaker Q F2 one end after the contact parallel connection of comprehensive protection device coil JDB; indicator lamp HL1 connects with the auxiliary reclay contact and indicator lamp HL2 connects with ac contactor contact the back parallel connection respectively with circuit breaker Q F2 one end; the QF1 other end connects; indicator lamp HL3 one end is connected with comprehensive protection device coil JDB one end; the other end is connected with the end of the comprehensive protection device coil JDB other end with time relay protector contact KT1 with capacitor C with fire-proof motor M1, and the other end of time relay protector contact KT1 is connected with the circuit breaker Q F1 other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320128703 CN2681024Y (en) | 2003-12-23 | 2003-12-23 | Explosion-proof warm air curtain machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320128703 CN2681024Y (en) | 2003-12-23 | 2003-12-23 | Explosion-proof warm air curtain machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2681024Y true CN2681024Y (en) | 2005-02-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320128703 Expired - Fee Related CN2681024Y (en) | 2003-12-23 | 2003-12-23 | Explosion-proof warm air curtain machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2681024Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937794A (en) * | 2012-11-19 | 2013-02-20 | 天津驰达电机有限公司 | Control system of motor operation time in intrinsic safety environment |
| CN104110780A (en) * | 2013-10-22 | 2014-10-22 | 广东美的制冷设备有限公司 | Air conditioner and control method and system for electric auxiliary heating thereof |
| CN108571461A (en) * | 2018-05-31 | 2018-09-25 | 河南森源电气股份有限公司 | Fan controller, blower fan system and frequency convertor system |
| CN112781168A (en) * | 2021-01-29 | 2021-05-11 | 广州安菲环保科技有限公司 | Quick-mounting type explosion-proof distribution box and industrial explosion-proof air curtain machine |
-
2003
- 2003-12-23 CN CN 200320128703 patent/CN2681024Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937794A (en) * | 2012-11-19 | 2013-02-20 | 天津驰达电机有限公司 | Control system of motor operation time in intrinsic safety environment |
| CN102937794B (en) * | 2012-11-19 | 2014-08-20 | 天津驰达电机有限公司 | Control system of motor operation time in intrinsic safety environment |
| CN104110780A (en) * | 2013-10-22 | 2014-10-22 | 广东美的制冷设备有限公司 | Air conditioner and control method and system for electric auxiliary heating thereof |
| CN104110780B (en) * | 2013-10-22 | 2017-01-25 | 广东美的制冷设备有限公司 | Air conditioner and control method and system for electric auxiliary heating thereof |
| CN108571461A (en) * | 2018-05-31 | 2018-09-25 | 河南森源电气股份有限公司 | Fan controller, blower fan system and frequency convertor system |
| CN108571461B (en) * | 2018-05-31 | 2023-11-21 | 河南森源电气股份有限公司 | Fan control device, fan system and frequency converter system |
| CN112781168A (en) * | 2021-01-29 | 2021-05-11 | 广州安菲环保科技有限公司 | Quick-mounting type explosion-proof distribution box and industrial explosion-proof air curtain machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |