CN204003555U - The two fan frequency conversion arrangements for speed regulation of mine flameproof and intrinsic safety type - Google Patents
The two fan frequency conversion arrangements for speed regulation of mine flameproof and intrinsic safety type Download PDFInfo
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- CN204003555U CN204003555U CN201420474335.2U CN201420474335U CN204003555U CN 204003555 U CN204003555 U CN 204003555U CN 201420474335 U CN201420474335 U CN 201420474335U CN 204003555 U CN204003555 U CN 204003555U
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Abstract
The utility model discloses the two fan frequency conversion arrangements for speed regulation of a kind of mine flameproof and intrinsic safety type, comprising: frequency variator, main air blower one, main air blower two, standby fan one, standby fan two, airduct, air intake firedamp sensor one, air intake firedamp sensor two and return air firedamp sensor.Frequency variator inside comprises main frame and slave, main frame is connected with main air blower one, main air blower two, slave is connected with standby fan one, standby fan two, airduct air intake is connected with main air blower one, main air blower two, standby fan one, standby fan two, outlet air end leads to bank, and air intake firedamp sensor one, air intake firedamp sensor two and return air firedamp sensor are connected with frequency variator.The gas density signal magnitude regulation output frequency that frequency variator detects according to air intake firedamp sensor one, air intake firedamp sensor two and return air firedamp sensor, thus rotation speed of fan, regulating air volume controlled.The utlity model has the feature such as low energy consumption, long service life.
Description
Technical field
The utility model relates to a kind of fan frequency conversion arrangements for speed regulation, specifically the two fan frequency conversion arrangements for speed regulation of a kind of mine flameproof and intrinsic safety type.
Background technique
The major impetus of mine ventilation is exactly ventilator, and China is big coal country, and big or small colliery spreads all over the country, and the ventilator quantity of use is many, but at present national each large, medium and small coal mining enterprise, ubiquity fan operation efficiency is low, wastes serious problem.In the actual use of blower fan, operational efficiency only has minority to reach 70%, is generally 50%, and minority is only 30%.Mine ventilation consumes electric energy and accounts for 30%-40% of full ore deposit total energy consumption.Therefore, mine fan carries out technological innovation, improves its operational efficiency, has very important effect.
Summary of the invention
For solving the problems of the technologies described above, improve the operational efficiency of ventilator, the utility model discloses the two fan frequency conversion arrangements for speed regulation of a kind of mine flameproof and intrinsic safety type.
The utility model comprises: frequency variator 1, main air blower one M1, main air blower two M2, standby fan one M3, standby fan two M4, airduct 4, air intake firedamp sensor 1, air intake firedamp sensor 26 and return air firedamp sensor 7.Frequency variator 1 inside comprises main frame and slave, main frame is connected with main air blower one M1, main air blower two M2, slave is connected with standby fan one M3, standby fan two M4, the air intake of airduct 4 is connected with main air blower one M1, main air blower two M2, standby fan one M3, standby fan two M4, outlet air end leads to bank, and air intake firedamp sensor 1, air intake firedamp sensor 26 and return air firedamp sensor 7 are connected with frequency variator 1.Frequency variator 1 main frame and slave have respectively independently Power supply of two-way.
The size adjustment output frequency of the gas density signal that frequency variator 1 detects according to air intake firedamp sensor 1, air intake firedamp sensor 26 and return air firedamp sensor 7, thus rotation speed of fan degree controlled, regulate the size of air quantity.Air intake firedamp sensor 1 and air intake firedamp sensor 26 are arranged on the outlet air end of airduct 4, and return air firedamp sensor 7 is arranged on return aircourse.Air intake firedamp sensor 1, air intake firedamp sensor 26 and return air firedamp sensor 7 are shielded cable with frequency variator 1 connection.The utility model adopts automatic gas-removing, automatic ventilation and the three kinds of methods of operation of low speed that transfinite, and main air blower one M1, main air blower two M2, standby fan one M3, standby fan two M4 are carried out to frequency control of motor speed.
The beneficial effects of the utility model are: frequency variator comprises main frame and slave and adopts independently Power supply of two-way, effectively ensured the continuous operation of blower fan; Adopt three kinds of methods of operation to carry out frequency control of motor speed to main air blower one M1, main air blower two M2, standby fan one M3, standby fan two M4, can effectively reduce energy consumption, extend the working life of blower fan.
Brief description of the drawings
Fig. 1 is the two fan frequency conversion arrangements for speed regulation schematic diagram of mine flameproof and intrinsic safety type.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1, the utility model comprises: frequency variator 1, main air blower one M1, main air blower two M2, standby fan one M3, standby fan two M4, airduct 4, air intake firedamp sensor 1, air intake firedamp sensor 26 and return air firedamp sensor 7.Frequency variator 1 inside comprises main frame and slave, main frame is connected with main air blower one M1, main air blower two M2, slave is connected with standby fan one M3, standby fan two M4, the air intake of airduct 4 is connected with main air blower one M1, main air blower two M2, standby fan one M3, standby fan two M4, and outlet air end leads to bank; Air intake firedamp sensor 1, air intake firedamp sensor 26 and return air firedamp sensor 7 are connected with frequency variator 1.Frequency variator 1 main frame and slave have respectively independently Power supply of two-way, and a road power supply connects AC terminal of main frame, and another road connects AC terminal of slave, and two-way power supply is powered simultaneously.In the time that main frame or main air blower one M1, main air blower two M2 break down, slave operation, standby fan one M3, standby fan two M4 work, stop main frame simultaneously, thereby ensure the continuous operation of blower fan.
The size adjustment output frequency of the gas density signal that frequency variator 1 detects according to air intake firedamp sensor 1, air intake firedamp sensor 26 and return air firedamp sensor 7, thereby the speed of control fan motor, the size of adjusting air quantity.Air intake firedamp sensor 1 and air intake firedamp sensor 26 are arranged on the outlet air end of airduct 4, and return air firedamp sensor 7 is arranged on return aircourse.Air intake firedamp sensor 1, air intake firedamp sensor 26 and return air firedamp sensor 7 are shielded cable with frequency variator 1 connection.When air intake firedamp sensor 1 and air intake firedamp sensor 26 are all normal, the gas density signal feed back that air intake firedamp sensor 1 detects is to frequency variator 1; In the time that air intake firedamp sensor 1 breaks down, the gas density signal feed back that air intake firedamp sensor 26 detects is to frequency variator 1, and air intake firedamp sensor 26 is as for subsequent use.
The utility model comprises that three kinds of methods of operation are respectively automatic gas-removing, automatic ventilation and the low speed that transfinites.When the gas concentration of air intake firedamp sensor 1 or 26 detections of air intake firedamp sensor is greater than setting value, when the gas concentration that return air firedamp sensor 7 detects is less than setting value, enter automatic gas-removing, the gas density signal magnitude regulation output frequency that frequency variator 1 detects according to return air firedamp sensor 7; When air intake firedamp sensor 1 or air intake firedamp sensor 26 detectable concentration values are less than setting value, when return air firedamp sensor 7 detectable concentration values are less than setting value, enter automatic ventilation, frequency variator 1 is according to the gas density signal magnitude regulation output frequency of air intake firedamp sensor 1 or 26 detections of air intake firedamp sensor; In the time that return air firedamp sensor 7 breaks down or detects gas density and be greater than setting value, enter the low speed that transfinites, frequency variator 1 output frequency perseverance is definite value 30Hz.Switching delay 10min between three kinds of mode of operations, thus ensure ventilation, reduce energy consumption and extend service life of fan.
Claims (3)
1. the two fan frequency conversion arrangements for speed regulation of mine flameproof and intrinsic safety type, is characterized by: comprise frequency variator (1), main air blower one (M1), main air blower two (M2), standby fan one (M3), standby fan two (M4), airduct (4), air intake firedamp sensor one (5), air intake firedamp sensor two (6) and return air firedamp sensor (7), frequency variator (1) inside comprises main frame and slave, main frame and main air blower one (M1), main air blower two (M2) connects, slave and standby fan one (M3), standby fan two (M4) connects, airduct (4) air intake and main air blower one (M1), main air blower two (M2), standby fan one (M3), standby fan two (M4) connects, outlet air end leads to bank, air intake firedamp sensor one (5), air intake firedamp sensor two (6) is connected with frequency variator (1) with return air firedamp sensor (7), frequency variator (1) main frame and slave have respectively independently Power supply of two-way.
2. the two fan frequency conversion arrangements for speed regulation of mine flameproof and intrinsic safety type according to claim 1, it is characterized in that: air intake firedamp sensor one (5) and air intake firedamp sensor two (6) are arranged on the outlet air end of airduct (4), and return air firedamp sensor (7) is arranged on return aircourse.
3. the two fan frequency conversion arrangements for speed regulation of mine flameproof and intrinsic safety type according to claim 1, is characterized in that: air intake firedamp sensor one (5), air intake firedamp sensor two (6) and return air firedamp sensor (7) are shielded cable with frequency variator (1) connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420474335.2U CN204003555U (en) | 2014-08-22 | 2014-08-22 | The two fan frequency conversion arrangements for speed regulation of mine flameproof and intrinsic safety type |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420474335.2U CN204003555U (en) | 2014-08-22 | 2014-08-22 | The two fan frequency conversion arrangements for speed regulation of mine flameproof and intrinsic safety type |
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| CN204003555U true CN204003555U (en) | 2014-12-10 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257576A (en) * | 2015-10-19 | 2016-01-20 | 珠海格力电器股份有限公司 | Centralized control system and method for double draught fans |
| CN108425874A (en) * | 2018-03-16 | 2018-08-21 | 京信通信系统（中国）有限公司 | Fan control system and reserce cell charging method |
| CN109026813A (en) * | 2018-10-22 | 2018-12-18 | 中车洛阳机车有限公司 | Electric locomotive breeze fan test tool equipment |
| CN110886619A (en) * | 2018-09-10 | 2020-03-17 | 上海颐坤自动化控制设备有限公司 | Mining intrinsic safety control device capable of automatically discharging gas |
| CN113565787A (en) * | 2021-07-29 | 2021-10-29 | 西安科技大学 | Mining explosion-proof and intrinsically safe dual-power dual-frequency-conversion speed regulation method |
-
2014
- 2014-08-22 CN CN201420474335.2U patent/CN204003555U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257576A (en) * | 2015-10-19 | 2016-01-20 | 珠海格力电器股份有限公司 | Centralized control system and method for double draught fans |
| CN108425874A (en) * | 2018-03-16 | 2018-08-21 | 京信通信系统（中国）有限公司 | Fan control system and reserce cell charging method |
| CN110886619A (en) * | 2018-09-10 | 2020-03-17 | 上海颐坤自动化控制设备有限公司 | Mining intrinsic safety control device capable of automatically discharging gas |
| CN109026813A (en) * | 2018-10-22 | 2018-12-18 | 中车洛阳机车有限公司 | Electric locomotive breeze fan test tool equipment |
| CN109026813B (en) * | 2018-10-22 | 2024-05-17 | 中车洛阳机车有限公司 | Electric locomotive air supply fan test tool equipment |
| CN113565787A (en) * | 2021-07-29 | 2021-10-29 | 西安科技大学 | Mining explosion-proof and intrinsically safe dual-power dual-frequency-conversion speed regulation method |
| CN113565787B (en) * | 2021-07-29 | 2024-06-04 | 西安科技大学 | Mining flameproof and intrinsically safe dual-power dual-frequency-conversion speed regulation method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 063020 Torch Road, Tangshan City high tech Zone, Hebei, No. 183 Patentee after: CITIC HIC KAICHENG INTELLIGENCE EQUIPMENT CO., LTD. Address before: 063020 Torch Road, Tangshan City high tech Zone, Hebei, No. 183 Patentee before: Tangshan Kaicheng Electronic Control Equipment Group Co., Ltd. |