CN104676689A - Implementation method for automatically controlling starting, stopping and exhaust amount of range hood - Google Patents
Implementation method for automatically controlling starting, stopping and exhaust amount of range hood Download PDFInfo
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- CN104676689A CN104676689A CN201410156892.4A CN201410156892A CN104676689A CN 104676689 A CN104676689 A CN 104676689A CN 201410156892 A CN201410156892 A CN 201410156892A CN 104676689 A CN104676689 A CN 104676689A
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- temperature sensor
- temperature
- air exhauster
- range hood
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2021—Arrangement or mounting of control or safety systems
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- Engineering & Computer Science (AREA)
- Ventilation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention relates to an implementation method for automatically controlling starting, stopping and exhaust amount of a range hood; the range hood comprises a smoke collecting cover, an exhaust fan, an air amount controller of the exhaust fan, and a smoke discharging pipe; a first temperature sensor is arranged outside the upper part of the smoke collecting cover; a second temperature sensor is arranged in the smoke discharging pipe; a third temperature sensor is arranged below the smoke collecting cover; and the air amount controller of the exhaust fan controls the starting, the stopping and the air feeding amount of the exhaust fan according to signals of the first temperature sensor, the second temperature sensor and the third temperature sensor. The range hood disclosed by the invention can be controlled in a full-automatic manner, and convenient to operate and has the energy-saving effect; aiming at cooking operation in a relatively closed space, the carbon monoxide poisoning phenomenon is difficult to happen; the use of a stove is not limited, and therefore, the range hood is wide to use; and, compared with an automatic range hood with a sensor using infrared rays and the like, after being converted into a product, the range hood disclosed by the invention has the advantages of being low in production cost, easy in parameter setting, convenient to debug and calibrate, difficult in pollution to the sensor, steady and reliable in property, and steady to work for a long time.
Description
Technical field
The present invention relates to a kind of smoke exhaust ventilator start and stop and the automatic control method of exhausting amount.
Background technology
There is following several control mode in current smoke exhaust ventilator: 1, manual start and stop and Boiler pressure control mode, as traditional control mode, it often only point to have two-stage, the wind speed pattern of three grades, relation between air quantity and oil smoke also must control by manpower intervention, there is low load with strong power and high load with small power phenomenon, take electricity; 2, link realize start and stop and Boiler pressure control mode with heater, adopt smoke exhaust ventilator in this way must with heater tight association, be difficult to independent use, installation and debugging process is complicated, maintenance cost is high, and when buying smoke exhaust ventilator and kitchen range, the right to choose of user is restricted; 3, infrared ray sensor regulable control air volume system is adopted, pressure fan Boiler pressure control (patent publication No. 103328897A) is changed according to the gratin temperature of remote measurement, result of use is affected because infrared ray sensor is subject to fume pollution, and installation and debugging need the distance to sensor and gratin, size is carried out complicated setting, and is unfavorable for that spread uses.
Summary of the invention
Goal of the invention: the object of the invention is to overcome deficiency of the prior art, provides a kind of simple smoke exhaust ventilator start and stop efficiently and the automatic control method of exhausting amount.
Technical scheme: a kind of smoke exhaust ventilator start and stop and the automatic control method of exhausting amount, comprise exhaust fume collecting hood, air exhauster, air exhauster blast volume controller and smoke exhaust pipe, described exhaust fume collecting hood upper outer is provided with the first temperature sensor, the second temperature sensor is provided with in described smoke exhaust pipe, be provided with three-temperature sensor below described exhaust fume collecting hood, air exhauster blast volume controller is according to the start and stop of the signal deciding air exhauster of the first temperature sensor, the second temperature sensor, three-temperature sensor and air output.
Preferably, described exhaust fume collecting hood air inlet both sides are respectively provided with a three-temperature sensor, then measure true and accurate more to flue-gas temperature.
Preferably, when between the temperature value that described three-temperature sensor records and the temperature value that the first temperature sensor records, temperature difference is greater than threshold value 0.5-1.0 degree Celsius, air exhauster startup optimization.
Preferably, after described air exhauster runs, there is temperature difference between the temperature value that described air exhauster blast volume controller records according to described three-temperature sensor and the temperature value that described second temperature sensor records and regulate air quantity.
Preferably, after described air exhauster runs, temperature difference between the temperature value that described three-temperature sensor records and the temperature value that described first temperature sensor records is less than 0.5-1.0 degree Celsius, or the rate of temperature change that described three-temperature sensor records is less than 0.05-1.0 degree Celsius/second, or the temperature difference that records of the temperature that records of described three-temperature sensor and described first temperature sensor is when being less than 0.5-1.0 degree Celsius, described air exhauster is out of service.
Inventive principle: a kind of smoke exhaust ventilator start and stop of the present invention and the automatic control method of exhausting amount, by controlling the start and stop of air exhauster and the change of air quantity, to realize automatic control.The control of air exhauster is the change being realized start and stop and air quantity by detected temperatures sensor taking temperature variable quantity and temperature sensor taking temperature rate of change.
Beneficial effect: a kind of smoke exhaust ventilator start and stop of the present invention and the automatic control method of exhausting amount, the Automatic Control of smoke exhaust ventilator can be realized, easy to operate, economize energy, for being in cooking operation in relative confined space, is difficult to anthracemia phenomenon occurs; The use of kitchen range is not limited, widely applicable; The automatic cooking fume exhauster of the sensors such as relative usage infrared ray, after the present invention is converted into product, low production cost, optimum configurations is simple, and debugging calibration is convenient, and sensor is not easily contaminated, stable and reliable for performance, can long-term stable operation.
Accompanying drawing explanation
Fig. 1 is workflow diagram of the present invention;
Fig. 2 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Embodiment 1: a kind of smoke exhaust ventilator start and stop and the automatic control method of exhausting amount, comprise exhaust fume collecting hood 100, air exhauster 120, air exhauster blast volume controller and smoke exhaust pipe 110, described exhaust fume collecting hood 100 upper outer is provided with the first temperature sensor 200, the second temperature sensor 210 is provided with in described smoke exhaust pipe 110, below described exhaust fume collecting hood 100, near air inlet, both sides are respectively provided with a three-temperature sensor 220, air exhauster blast volume controller is according to the first temperature sensor 200, second temperature sensor 210, the start and stop of the signal deciding air exhauster 120 of three-temperature sensor 220 and air output.
After below smoke exhaust ventilator, heater is opened, temperature between smoke exhaust ventilator and heater rises, temperature difference Δ T12=T1-T2 is there is between temperature value T1, T1a that two three-temperature sensors 220 record respectively and the temperature value T2 that the first temperature sensor 200 records, Δ T12a=T1a-T2, if Δ T12 or Δ T12a is greater than threshold values 0.5 degree Celsius, then air exhauster 120 startup optimization.
After air exhauster 120 runs, temperature difference Δ T13=T1-T3 is there is between temperature value T1, T1a that two three-temperature sensors 220 record respectively and the temperature value T3 that the second temperature sensor 210 records, Δ T13a=T1a-T3, air exhauster 120 air quantity and Δ T13 and (or) Δ T13a existence function relation
s=f(x),
S is fan speed (the corresponding air quantity produced), and f is function, and x is parameter and the x=(Δ T13, Δ T13a) of function.
After air exhauster 120 runs, if Δ T13, Δ T13a are less than threshold values 0.5 degree Celsius, and dT1/dt or dT1a/dt (rate of temperature change) is less than 0.05 degree Celsius/second, and the temperature difference of T1, T1a and T2 is close or when being less than 0.5 degree Celsius, air exhauster 120 is out of service.
Sensor used in the present invention is temperature sensor, can select the negative tempperature coefficient thermistor sensor (NTC) that is widely used in household electrical appliance or semistor sensor (PTC).The temperature difference only recorded to sensor due to control object and air exhauster 120 is relevant with rate of temperature change, so when manufacturing and debugging uses, only need be normalized setting to the kelvin rating of sensor sensing under the condition of a fixed temperature, the error of sensor precision can be eliminated to the impact controlling to bring.
Embodiment 2: substantially the same manner as Example 1, difference is, after below smoke exhaust ventilator, heater is opened, temperature between smoke exhaust ventilator and heater rises, temperature difference Δ T12=T1-T2 is there is between temperature value T1, T1a that two three-temperature sensors 220 record respectively and the temperature value T2 that the first temperature sensor 200 records, Δ T12a=T1a-T2, if Δ T12 or Δ T12a is greater than threshold values 1.0 degrees Celsius, then air exhauster 120 startup optimization.
After air exhauster 120 runs, if Δ T13, Δ T13a are less than threshold values 1.0 degrees Celsius, and dT1/dt or dT1a/dt (rate of temperature change) is less than 0.1 degree Celsius/second, and the temperature difference of T1, T1a and T2 is close or when being less than 1.0 degrees Celsius, air exhauster 120 is out of service.
Embodiment 3: substantially the same manner as Example 1, difference is, after below smoke exhaust ventilator, heater is opened, temperature between smoke exhaust ventilator and heater rises, temperature difference Δ T12=T1-T2 is there is between temperature value T1, T1a that two three-temperature sensors 220 record respectively and the temperature value T2 that the first temperature sensor 200 records, Δ T12a=T1a-T2, if Δ T12 or Δ T12a is greater than threshold values 0.75 degree Celsius, then air exhauster 120 startup optimization.
After air exhauster 120 runs, if Δ T13, Δ T13a are less than threshold values 0.75 degree Celsius, and dT1/dt or dT1a/dt (rate of temperature change) is less than 0.075 degree Celsius/second, and the temperature difference of T1, T1a and T2 is close or when being less than 0.75 degree Celsius, air exhauster 120 is out of service.
Claims (5)
1. smoke exhaust ventilator start and stop and the automatic control method of exhausting amount, comprise exhaust fume collecting hood, air exhauster, air exhauster blast volume controller and smoke exhaust pipe, it is characterized in that: described exhaust fume collecting hood upper outer is provided with the first temperature sensor, the second temperature sensor is provided with in described smoke exhaust pipe, be provided with three-temperature sensor below described exhaust fume collecting hood, air exhauster blast volume controller is according to the start and stop of the signal deciding air exhauster of the first temperature sensor, the second temperature sensor, three-temperature sensor and air output.
2. smoke exhaust ventilator start and stop according to claim 1 and the automatic control method of exhausting amount, is characterized in that: described exhaust fume collecting hood air inlet both sides are respectively provided with a three-temperature sensor.
3. smoke exhaust ventilator start and stop according to claim 1 and the automatic control method of exhausting amount, it is characterized in that: when between the temperature value that described three-temperature sensor records and the temperature value that described first temperature sensor records, temperature difference is greater than 0.5-1.0 degree Celsius, described air exhauster startup optimization.
4. smoke exhaust ventilator start and stop according to claim 1 and the automatic control method of exhausting amount, is characterized in that:
After described air exhauster runs, the temperature difference between the temperature value that described air exhauster blast volume controller records according to described three-temperature sensor and the temperature value that described second temperature sensor records regulates air quantity.
5. smoke exhaust ventilator start and stop according to claim 1 and the automatic control method of exhausting amount, it is characterized in that: after described air exhauster runs, temperature difference between the temperature value that described three-temperature sensor records and the temperature value that described first temperature sensor records is less than threshold value 0.5-1.0 degree Celsius, and the rate of temperature change that described three-temperature sensor records is less than threshold value 0.05-1.0 degree Celsius/second, and the temperature difference that records of the temperature that records of described three-temperature sensor and described first temperature sensor is when being less than threshold value 0.5-1.0 degree Celsius, air exhauster is out of service.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410156892.4A CN104676689A (en) | 2014-04-18 | 2014-04-18 | Implementation method for automatically controlling starting, stopping and exhaust amount of range hood |
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| CN201410156892.4A CN104676689A (en) | 2014-04-18 | 2014-04-18 | Implementation method for automatically controlling starting, stopping and exhaust amount of range hood |
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| CN104676689A true CN104676689A (en) | 2015-06-03 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444237A (en) * | 2015-12-31 | 2016-03-30 | 欧派家居集团股份有限公司 | Range hood and control method thereof |
| CN106051875A (en) * | 2016-07-26 | 2016-10-26 | 广东万家乐燃气具有限公司 | Extractor hood with automatically controlled gears |
| CN106196206A (en) * | 2016-07-20 | 2016-12-07 | 广东美的厨房电器制造有限公司 | The control method of smoke extractor and smoke extractor |
| CN106871201A (en) * | 2017-03-23 | 2017-06-20 | 广东美的厨房电器制造有限公司 | Range hood and its control method and device |
| CN107339248A (en) * | 2016-04-30 | 2017-11-10 | 华帝股份有限公司 | High-reliability oil smoke detection method |
| CN107812419A (en) * | 2017-12-14 | 2018-03-20 | 浙江腾荣环保科技有限公司 | A kind of high building fume pipeline filter |
| CN112432212A (en) * | 2020-10-27 | 2021-03-02 | 广东格兰仕集团有限公司 | Automatic shutdown control method for range hood and range hood control system |
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| CN101592349A (en) * | 2009-06-11 | 2009-12-02 | 夏志生 | A kind of integrated side-suction type range hood and kitchen range |
| CN201463042U (en) * | 2009-04-13 | 2010-05-12 | 朱华荣 | Automatic range hood |
| CN202902386U (en) * | 2012-07-18 | 2013-04-24 | 浙江美大实业股份有限公司 | Overheating protection device of air duct of integrated cooker |
| CN203375502U (en) * | 2013-01-28 | 2014-01-01 | 张伟顥 | Automatic controller for fume exhauster |
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| CN201463042U (en) * | 2009-04-13 | 2010-05-12 | 朱华荣 | Automatic range hood |
| CN101592349A (en) * | 2009-06-11 | 2009-12-02 | 夏志生 | A kind of integrated side-suction type range hood and kitchen range |
| CN202902386U (en) * | 2012-07-18 | 2013-04-24 | 浙江美大实业股份有限公司 | Overheating protection device of air duct of integrated cooker |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444237A (en) * | 2015-12-31 | 2016-03-30 | 欧派家居集团股份有限公司 | Range hood and control method thereof |
| CN105444237B (en) * | 2015-12-31 | 2019-01-15 | 欧派家居集团股份有限公司 | Range hood and its control method |
| CN107339248A (en) * | 2016-04-30 | 2017-11-10 | 华帝股份有限公司 | High-reliability oil smoke detection method |
| CN106196206A (en) * | 2016-07-20 | 2016-12-07 | 广东美的厨房电器制造有限公司 | The control method of smoke extractor and smoke extractor |
| CN106051875A (en) * | 2016-07-26 | 2016-10-26 | 广东万家乐燃气具有限公司 | Extractor hood with automatically controlled gears |
| CN106871201A (en) * | 2017-03-23 | 2017-06-20 | 广东美的厨房电器制造有限公司 | Range hood and its control method and device |
| CN107812419A (en) * | 2017-12-14 | 2018-03-20 | 浙江腾荣环保科技有限公司 | A kind of high building fume pipeline filter |
| CN112432212A (en) * | 2020-10-27 | 2021-03-02 | 广东格兰仕集团有限公司 | Automatic shutdown control method for range hood and range hood control system |
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Application publication date: 20150603 |
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