CN202419844U - Energy-saving explosion-proof exhaust system - Google Patents
Energy-saving explosion-proof exhaust system Download PDFInfo
- Publication number
- CN202419844U CN202419844U CN2012200543485U CN201220054348U CN202419844U CN 202419844 U CN202419844 U CN 202419844U CN 2012200543485 U CN2012200543485 U CN 2012200543485U CN 201220054348 U CN201220054348 U CN 201220054348U CN 202419844 U CN202419844 U CN 202419844U
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- explosion
- flame
- proof
- triode
- proof switch
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Abstract
The utility model relates to an energy-saving explosion-proof exhaust system, which includes a sensor, an explosion-proof switch, an explosion-proof exhaust fan, an explosion-proof early warning device and a control circuit, wherein the sensor is electrically connected with the control circuit; the control circuit is electrically connected with the explosion-proof switch and the explosion-proof early warning device; and the explosion-proof switch is electrically connected with the explosion-proof exhaust fan. The energy-saving explosion-proof exhaust system has simple structure, low manufacturing cost, high safety and low energy consumption, and is convenient to control.
Description
Technical field
The utility model relates to a kind of gas extraction system, especially relates to a kind of energy-saving explosion-proof gas extraction system.
Background technology
In places such as chemical industry, collieries, be easy to produce various fuel gas, like methane, coal gas etc.In some airtight places, when these combustable gas concentrations acquire a certain degree, be easy to blast.Though some explosion precautions are also arranged at present, complex structure often, effect is unreliable.
The utility model content
In order to overcome the above-mentioned defective that prior art exists, the utility model provides a kind of energy-saving explosion-proof gas extraction system of simple in structure, high efficiency.
The technical scheme of the utility model is: a kind of anti-explosion exhaust system; Comprise sensor, flame-proof switch, anti-explosion exhaust fan, anti-explosion early warning device and control circuit; Sensor is electrically connected with control circuit; Control circuit is electrically connected with flame-proof switch and anti-explosion early warning device, and flame-proof switch is electrically connected with the anti-explosion exhaust fan.
Further, said flame-proof switch comprises the flame-proof switch shell, is provided with motor side stator core and mains side stator core in the switch housing; Motor side stator core top is provided with actuator side joint terminal; Flame-proof switch links to each other with anti-explosion exhaust fan power line through actuator side joint terminal, and the mains side stator core links to each other with power supply through the mains side binding post, and motor side stator core below is provided with conducting strip; The conducting strip end contacts with movable core; Be provided with return spring between motor side stator core and the movable core, motor side stator core side is provided with solenoid, and solenoid is provided with winding wiring I and winding wiring II; The sensor output signal end is connected with the winding wiring I of flame-proof switch and the amplifying circuit binding post of anti-explosion early warning device through control circuit, another winding wiring II ground connection of flame-proof switch.
Further, said control circuit comprises diode D and antioverloading resistance R 3, and diode D anode is connected with the sensor output signal end, and negative electrode is connected with antioverloading resistance R 3 one ends, and antioverloading resistance R 3 other ends are connected with anti-explosion early warning device with flame-proof switch.
Further, the actuator side joint terminal of flame-proof switch connects the power-line terminal of anti-explosion exhaust fan, the other end earth connection of anti-explosion exhaust fan.
Further; Said anti-explosion early warning device comprises amplifying circuit; Said amplifying circuit is connected with main circuit, and main circuit is provided with early-warning lamp, and amplifying circuit is provided with triode B1; Triode B1 base terminal is provided with the amplifying circuit binding post, and anti-explosion early warning device is connected with control circuit through the amplifying circuit binding post through the base stage of triode B1.
Further, also be provided with antioverloading resistance R 1 on the said amplifying circuit, antioverloading resistance R 1 is connected with the emitter stage of triode B1.
Further; Said main circuit is provided with triode B2 and antioverloading resistance R 2, and main circuit is connected with amplifying circuit through triode B2 base stage, and antioverloading resistance R 2 is connected with the emitter stage of triode B2; The colelctor electrode of triode B2 is connected with early-warning lamp one end, early-warning lamp other end earth connection.
During work, the concentration of imflammable gas in the sensor monitoring environment air, and send signal to flame-proof switch; When the concentration of imflammable gas in the air reaches predeterminable level; Realize the warning of anti-explosion early warning device through control circuit; Simultaneously, through flame-proof switch control anti-explosion exhaust fan, discharge indoor gas through the anti-explosion exhaust fan; Thereby help reducing the concentration of imflammable gas, prevent the generation of exploding; When the concentration of imflammable gas is reduced to a certain degree, anti-explosion early warning device is reported to the police and is stopped to report to the police, and the anti-explosion exhaust fan is prone to quit work.
Simple in structure, the low cost of manufacture of the utility model, anti-explosion exhaust fan pass are crossed flame-proof switch control, and control is convenient.In the prior art, directly control the eliminating that exhaust equipment also can be realized gas, but its control system architecture is complicated through the control system; Use the utility model, control circuit is simple, under the effect of flame-proof switch, can easily realize the eliminating of anti-explosive gas, realize simply, and safe, energy consumption is low, and the scope of application is wider.
Description of drawings
Fig. 1 is the utility model one example structure block diagram;
Fig. 2 is a concrete structure structure chart embodiment illustrated in fig. 1;
Fig. 3 is a control circuit structural representation shown in Figure 1.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.
With reference to Fig. 1; Present embodiment comprises sensor 1, flame-proof switch 2, anti-explosion exhaust fan 3, anti-explosion early warning device 4 and control circuit 5; Sensor 1 is electrically connected with control circuit 5, and control circuit 5 is electrically connected with flame-proof switch 2 and anti-explosion early warning device 4, and flame-proof switch 2 is electrically connected with anti-explosion exhaust fan 3.
The type of sensor 1 is chosen by actual conditions, like methane transducer etc.; The quantity of sensor 1 can be adjusted by situation.
With reference to Fig. 2; Flame-proof switch 2 comprises flame-proof switch shell 2-5; Be provided with motor side stator core 2-2 and mains side stator core 2-9 in the switch housing 2-5, motor side stator core 2-2 top is provided with actuator side joint terminal 2-1, and flame-proof switch 2 links to each other with anti-explosion exhaust fan power line 3-1 through actuator side joint terminal 2-1; Mains side stator core 2-9 links to each other with power supply through mains side binding post 2-10; Motor side stator core 2-2 below is provided with conducting strip 2-7, and conducting strip 2-7 end contacts with movable core 2-8, is provided with return spring 2-11 between motor side stator core 2-2 and the movable core 2-8; Motor side stator core 2-2 side is provided with solenoid 2-3; Solenoid 2-3 is provided with winding wiring I 2-4 and winding wiring II 2-6, and sensor 1 output signal end 1-1 is connected with the winding wiring I 2-4 of flame-proof switch 2 and the amplifying circuit binding post 4-2 of anti-explosion early warning device 4 through control circuit 5, another winding wiring II 2-6 ground connection of flame-proof switch 2.
With reference to Fig. 3, control circuit 5 comprises diode D and antioverloading resistance R 3, and diode D anode is connected with sensor 1 output signal end 1-1, and negative electrode is connected with antioverloading resistance R 3 one ends, and antioverloading resistance R 3 other ends are connected with anti-explosion early warning device 4 with flame-proof switch 2.
The actuator side joint terminal 2-1 of flame-proof switch 2 connects the power-line terminal 3-1 of anti-explosion exhaust fan 3, the other end 3-2 earth connection of anti-explosion exhaust fan 3.
Anti-explosion early warning device 4 comprises amplifying circuit; Said amplifying circuit is connected with main circuit; Main circuit is provided with early-warning lamp LED; Amplifying circuit is provided with triode B1, and triode B1 base terminal is provided with amplifying circuit binding post 4-2, and anti-explosion early warning device 4 is connected with control circuit 5 through amplifying circuit binding post 4-2 through the base stage of triode B1.
Also be provided with antioverloading resistance R 1 on the amplifying circuit, antioverloading resistance R 1 is connected with the emitter stage of triode B1.
Main circuit is provided with triode B2 and antioverloading resistance R 2; Main circuit is connected with amplifying circuit through triode B2 base stage; Antioverloading resistance R 2 is connected with the emitter stage of triode B2, and the colelctor electrode of triode B2 is connected with early-warning lamp LED one end, early-warning lamp LED other end earth connection.
Under normal condition, flame-proof switch 2 is under the effect of spring force 2-14, and movable core 2-8 separates with mains side stator core 2-9; When sensor 1 monitored the particle concentration that explodes in the environment above preset value, sensor 1 output signal end 1-1 sent the high level signal of representing early warning, the diode D conducting in the control circuit 5; Solenoid 2-3 has electric current to pass through; Solenoid 2-3 work, the effect that movable core 2-8 overcomes return spring 2-11 to mains side binding post 2-10 near, make movable core 2-8 small end contact with mains side stator core 2-9; At this moment; Flame-proof switch 2 is in conducting state, and anti-explosion exhaust is fanned 3 circuit and connected, and can start working; In the course of work, conducting strip 2-7 contacts with movable core 2-8 all the time.When sensor 1 monitors in the environment blast particle concentration when being lower than preset value; Sensor 1 output signal end 1-1 sends the low level signal of representing safety, and the diode D in the control circuit 5 does not allow electric current to pass through, at this moment; Flame-proof switch 2 is in nonconducting state, and anti-explosion exhaust fan 3 is not worked yet.
In prior-warning device when work,, when sensor 1 monitored that dangerous blast particle concentration is lower than preset value mine under, sensor 1 sent to control circuit 5 and represents safe low level signal; Low level signal gets into the diode D in the control circuit 5; Owing to be low level, diode D does not allow electric current to pass through, and amplifying circuit and main circuit are and open circuit; Early-warning lamp LED does not work, the expression security situation;
Dangerous blast particle concentration is above behind the preset value under the mine when sensor 1 monitors, and sensor 1 sends the high level signal of representing early warning in control circuit 5, and high level signal gets into the diode D in the control circuit 5; Owing to be high level; Diode D allows its electric current to pass through, and electric current gets into the base stage of amplifying circuit triode B1, and at this moment amplifying circuit transfers path to; Electric current flows into the base stage of main circuit triode B2 through B1; Make to be in the main circuit formation path that opens circuit originally, early-warning lamp LED begins luminous, reaches the early warning effect;
When the blast particle concentration is reduced to preset value when following, sensor 1 sends the low level of expression safety, and at this moment amplifying circuit quits work, and main circuit is in again and opens circuit, and early-warning lamp goes out, and reaches to remove the early warning effect.
Claims (7)
1. energy-saving explosion-proof gas extraction system; It is characterized in that; Comprise sensor, flame-proof switch, anti-explosion exhaust fan, anti-explosion early warning device and control circuit; Sensor is electrically connected with control circuit, and control circuit is electrically connected with flame-proof switch and anti-explosion early warning device, and flame-proof switch is electrically connected with the anti-explosion exhaust fan.
2. energy-saving explosion-proof gas extraction system according to claim 1; It is characterized in that said flame-proof switch comprises the flame-proof switch shell, be provided with motor side stator core and mains side stator core in the switch housing; Motor side stator core top is provided with actuator side joint terminal; Flame-proof switch links to each other with anti-explosion exhaust fan power line through actuator side joint terminal, and the mains side stator core links to each other with power supply through the mains side binding post, and motor side stator core below is provided with conducting strip; The conducting strip end contacts with movable core; Be provided with return spring between motor side stator core and the movable core, motor side stator core side is provided with solenoid, and solenoid is provided with winding wiring I and winding wiring II; The sensor output signal end is connected with the winding wiring I of flame-proof switch and the amplifying circuit binding post of anti-explosion early warning device through control circuit, another winding wiring II ground connection of flame-proof switch.
3. energy-saving explosion-proof gas extraction system according to claim 1 and 2; It is characterized in that; Said control circuit comprises diode D and antioverloading resistance R 3; Diode D anode is connected with the sensor output signal end, and negative electrode is connected with antioverloading resistance R 3 one ends, and antioverloading resistance R 3 other ends are connected with anti-explosion early warning device with flame-proof switch.
4. energy-saving explosion-proof gas extraction system according to claim 2 is characterized in that, the actuator side joint terminal of flame-proof switch connects the power-line terminal of anti-explosion exhaust fan, the other end earth connection of anti-explosion exhaust fan.
5. energy-saving explosion-proof gas extraction system according to claim 1 and 2; It is characterized in that said anti-explosion early warning device comprises amplifying circuit, said amplifying circuit is connected with main circuit; Main circuit is provided with early-warning lamp; Amplifying circuit is provided with triode B1, and triode B1 base terminal is provided with the amplifying circuit binding post, and anti-explosion early warning device is connected with control circuit through the amplifying circuit binding post through the base stage of triode B1.
6. energy-saving explosion-proof gas extraction system according to claim 5 is characterized in that, also is provided with antioverloading resistance R 1 on the said amplifying circuit, and antioverloading resistance R 1 is connected with the emitter stage of triode B1.
7. energy-saving explosion-proof gas extraction system according to claim 5; It is characterized in that; Said main circuit is provided with triode B2 and antioverloading resistance R 2, and main circuit is connected with amplifying circuit through triode B2 base stage, and antioverloading resistance R 2 is connected with the emitter stage of triode B2; The colelctor electrode of triode B2 is connected with early-warning lamp one end, early-warning lamp other end earth connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200543485U CN202419844U (en) | 2012-02-20 | 2012-02-20 | Energy-saving explosion-proof exhaust system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200543485U CN202419844U (en) | 2012-02-20 | 2012-02-20 | Energy-saving explosion-proof exhaust system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202419844U true CN202419844U (en) | 2012-09-05 |
Family
ID=46744601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200543485U Expired - Lifetime CN202419844U (en) | 2012-02-20 | 2012-02-20 | Energy-saving explosion-proof exhaust system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202419844U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563793A (en) * | 2012-02-20 | 2012-07-11 | 刘立文 | Explosion-proof exhaust system |
-
2012
- 2012-02-20 CN CN2012200543485U patent/CN202419844U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563793A (en) * | 2012-02-20 | 2012-07-11 | 刘立文 | Explosion-proof exhaust system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120905 Effective date of abandoning: 20140528 |
|
| RGAV | Abandon patent right to avoid regrant |