CN104807181A - Control method for air heater - Google Patents
Control method for air heater Download PDFInfo
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- CN104807181A CN104807181A CN201510177243.7A CN201510177243A CN104807181A CN 104807181 A CN104807181 A CN 104807181A CN 201510177243 A CN201510177243 A CN 201510177243A CN 104807181 A CN104807181 A CN 104807181A
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- frequency converter
- air
- temperature
- electric heating
- heating tube
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Abstract
The invention discloses a control method for an air heater and belongs to the technical field of fan equipment. The method adopts an air heater control system and comprises the following steps of pressing down a switch to enable an electric heating tube to heat, delaying a time relay for 15 minutes and then connecting; meanwhile, sensing a real-time temperature signal in a hot air chamber and transmitting the temperature signal to a frequency converter by a temperature sensor; comparing the temperature signal with a preset rated temperature range, controlling the voltage amplitude of the electric heating tube and further enabling the temperature to be positioned within the rated temperature range by the frequency converter; besides, sensing a real-time air quantity signal in the hot air chamber and transmitting the air quantity signal to the frequency converter by an air quantity sensor; comparing the air quantity signal with the preset rated air quantity range, controlling the voltage amplitude of a motor and further enabling the air quantity to be positioned within the rated air quantity range by the frequency converter. According to the control method disclosed by the invention, the problem that as an existing air heater is single in control function, the temperature and the air outlet volume cannot be simultaneously controlled can be solved.
Description
Technical field
The present invention relates to Fan Equipment technical field, the air-heater of especially a kind of controllable temperature and control air output size.
Background technology
Air-heater is widely used a kind of drying equipment, existing a kind of air-heater includes the heater and air blast that are connected with power supply, the temperature sensor that relay is connected with heater is provided with at the air outlet place of air-heater, during work, connect blower power supply, air blast blow air in heater, make air from helical form heating wire, outside is evenly passed through, the heat produced after heating wire energising carries out heat exchange with the cold air passed through, thus the wind-warm syndrome of air outlet is raised, when air outlet place, temperature rises to predetermined value, temperature sensor and transmission of signal are to relay, relay is disconnected, thus cut off the connection of heater and power supply.But it is more single that this air-heater also exists controlling functions, the problem of air output during control temperature, can not be controlled simultaneously.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of air-heater control method, and it is more single that this method can solve existing air-heater controlling functions, can not control the problem of air output during control temperature simultaneously.
In order to solve the problem, the technical solution adopted in the present invention is: this air-heater control method, adopt a kind of air-heater control system, this system includes the temperature sensor be connected with the temperature control interface end of frequency converter and the air flow sensor be connected with the Boiler pressure control interface end of described frequency converter; The startup interface end of described frequency converter is connected with switch; The signal output part of described frequency converter is connected with the time relay with electric heating tube, and the tip side of the described time relay is connected in series mutually with motor; Described electric heating tube is many that are connected in parallel;
Its control method is as follows:
Press switch, electric heating tube switches on power and heats, and simultaneously the time relay remains open state and connects after 15 minutes;
Simultaneously, real time temperature value signal in temperature sensor senses hot air chamber, and this temperature value signal is passed to frequency converter, frequency converter according to this temperature value signal compared with the rated temperature range preset, control the size of electric heating tube voltage, be positioned at rated temperature range to make this temperature value;
Simultaneously, real-time airflow value signal in air flow sensor induction heat air compartment, and by this airflow value signal transmission to frequency converter, frequency converter according to this airflow value signal compared with the nominal air delivery scope preset, control the size of electric moter voltage, be positioned at nominal air delivery scope to make this airflow value.
Owing to have employed technique scheme, the present invention compared with prior art has following beneficial effect:
1, owing to being provided with frequency converter, and frequency converter temperature control interface end connects temperature sensor, and the Boiler pressure control interface end of frequency converter connects air flow sensor; Therefore the frequency converter live signal that can transmit according to temperature sensor and air flow sensor, the adjustment heating-up temperature of electric heating tube and the size of air output in good time, the present invention has not only saved the safety that the energy more protects equipment.
2, owing to being connected with the time relay between the signal output part and motor of frequency converter, when switching on power, electric heating tube first heats, and the time relay makes electric motor starting suspend a period of time, when after air heat in air-heater, restarts motor and hot gas is blown out; Its energy consumption is low, has saved the energy.
Accompanying drawing explanation
Fig. 1 is the electrical schematic diagram of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the invention will be further described:
This air-heater control method, adopt a kind of air-heater control system as shown in Figure 1, this system includes the temperature sensor 2 be connected with temperature control interface end b with the temperature control interface end a of frequency converter 1; Boiler pressure control interface end c and the Boiler pressure control interface end d of frequency converter 1 are connected with air flow sensor 3; Startup interface end e and the startup interface end f of frequency converter 1 are connected with switch 7; The signal output part of frequency converter 1 is connected with the time relay 6 with electric heating tube 4, and the tip side of the time relay 6 is connected in series mutually with motor 5; Electric heating tube 4 is many of being connected in parallel.
Its control method is as follows:
Press switch 7, electric heating tube 4 switches on power heating, and the time relay 6 remains open state 15 minutes simultaneously, then connects;
Simultaneously, real time temperature value signal in temperature sensor 2 induction heat air compartment, and this temperature value signal is passed to frequency converter 1, frequency converter 1 according to this temperature value signal with preset rated temperature range compared with, control the size of electric heating tube 4 voltage, be positioned at rated temperature range to make this temperature value;
Simultaneously, real-time airflow value signal in air flow sensor 3 induction heat air compartment, and by this airflow value signal transmission to frequency converter 1, frequency converter 1 according to this airflow value signal compared with the nominal air delivery scope preset, control the size of motor 5 voltage, be positioned at nominal air delivery scope to make this airflow value.
Claims (1)
1. an air-heater control method, it is characterized in that: adopt a kind of air-heater control system, this system includes the temperature sensor (2) be connected with the temperature control interface end of frequency converter (1) and the air flow sensor (3) be connected with the Boiler pressure control interface end of described frequency converter (1); The startup interface end of described frequency converter (1) is connected with switch (7); The signal output part of described frequency converter (1) is connected with the time relay (6) with electric heating tube (4), and the tip side of the described time relay (6) is connected in series mutually with motor (5); Described electric heating tube (4) is many of being connected in parallel;
Its control method is as follows:
Press switch (7), electric heating tube (4) switches on power heating, and the time relay (6) remains open state 15 minutes simultaneously, then connects;
Simultaneously, real time temperature value signal in temperature sensor (2) induction heat air compartment, and this temperature value signal is passed to frequency converter (1), frequency converter (1) according to this temperature value signal with preset rated temperature range compared with, control the size of electric heating tube (4) voltage, be positioned at rated temperature range to make this temperature value;
Simultaneously, real-time airflow value signal in air flow sensor (3) induction heat air compartment, and by this airflow value signal transmission to frequency converter (1), frequency converter (1) according to this airflow value signal with preset nominal air delivery scope compared with, control the size of motor (5) voltage, be positioned at nominal air delivery scope to make this airflow value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510177243.7A CN104807181A (en) | 2015-04-15 | 2015-04-15 | Control method for air heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510177243.7A CN104807181A (en) | 2015-04-15 | 2015-04-15 | Control method for air heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104807181A true CN104807181A (en) | 2015-07-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510177243.7A Pending CN104807181A (en) | 2015-04-15 | 2015-04-15 | Control method for air heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104807181A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180632A (en) * | 2015-10-26 | 2015-12-23 | 中联重机股份有限公司 | Drier temperature control method and drier system |
| CN107228483A (en) * | 2016-03-25 | 2017-10-03 | 风友机械(上海)有限公司 | A kind of air-heater control system and control method |
| CN110277768A (en) * | 2018-03-16 | 2019-09-24 | C.&E.泛音有限公司 | Drilling equipment and for make drilling equipment run method |
| CN110703717A (en) * | 2019-11-13 | 2020-01-17 | 蚌埠凯盛工程技术有限公司 | Clean factory building intelligent environment regulation and control system |
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| CN201569171U (en) * | 2009-12-23 | 2010-09-01 | 辽宁医学院 | Integrated controller of hot blast stove |
| CN102345912A (en) * | 2011-06-27 | 2012-02-08 | 内蒙古电力勘测设计院 | SVG (static var generator) room temperature control system |
| CN102500529A (en) * | 2011-12-29 | 2012-06-20 | 肇庆千江高新材料科技有限公司 | Drying equipment and drying process applicable to water-based air-dried paint |
| CN202392990U (en) * | 2011-12-28 | 2012-08-22 | 北京华帝欣科技发展有限公司 | Frequency conversion electric heating fan with carbon heat stick |
| CN203523788U (en) * | 2013-09-29 | 2014-04-09 | 西安扩力机电科技有限公司 | Air supply monitoring system of cut tobacco drier |
| CN104286067A (en) * | 2013-07-17 | 2015-01-21 | 中江县颜氏粮油食品有限公司 | Drying device for fine dried noodles |
| CN104481908A (en) * | 2014-12-11 | 2015-04-01 | 西南铝业（集团）有限责任公司 | Fan motor device |
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2015
- 2015-04-15 CN CN201510177243.7A patent/CN104807181A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201569171U (en) * | 2009-12-23 | 2010-09-01 | 辽宁医学院 | Integrated controller of hot blast stove |
| CN102345912A (en) * | 2011-06-27 | 2012-02-08 | 内蒙古电力勘测设计院 | SVG (static var generator) room temperature control system |
| CN202392990U (en) * | 2011-12-28 | 2012-08-22 | 北京华帝欣科技发展有限公司 | Frequency conversion electric heating fan with carbon heat stick |
| CN102500529A (en) * | 2011-12-29 | 2012-06-20 | 肇庆千江高新材料科技有限公司 | Drying equipment and drying process applicable to water-based air-dried paint |
| CN104286067A (en) * | 2013-07-17 | 2015-01-21 | 中江县颜氏粮油食品有限公司 | Drying device for fine dried noodles |
| CN203523788U (en) * | 2013-09-29 | 2014-04-09 | 西安扩力机电科技有限公司 | Air supply monitoring system of cut tobacco drier |
| CN104481908A (en) * | 2014-12-11 | 2015-04-01 | 西南铝业（集团）有限责任公司 | Fan motor device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180632A (en) * | 2015-10-26 | 2015-12-23 | 中联重机股份有限公司 | Drier temperature control method and drier system |
| CN105180632B (en) * | 2015-10-26 | 2018-02-13 | 中联重机股份有限公司 | Dryer temprature control method and its dryer system |
| CN107228483A (en) * | 2016-03-25 | 2017-10-03 | 风友机械(上海)有限公司 | A kind of air-heater control system and control method |
| CN110277768A (en) * | 2018-03-16 | 2019-09-24 | C.&E.泛音有限公司 | Drilling equipment and for make drilling equipment run method |
| CN110703717A (en) * | 2019-11-13 | 2020-01-17 | 蚌埠凯盛工程技术有限公司 | Clean factory building intelligent environment regulation and control system |
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Application publication date: 20150729 |
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| WD01 | Invention patent application deemed withdrawn after publication |