CN113375339A - Hot air dryer and control method thereof - Google Patents
Hot air dryer and control method thereof Download PDFInfo
- Publication number
- CN113375339A CN113375339A CN202110811974.8A CN202110811974A CN113375339A CN 113375339 A CN113375339 A CN 113375339A CN 202110811974 A CN202110811974 A CN 202110811974A CN 113375339 A CN113375339 A CN 113375339A
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- inlet pipe
- air inlet
- air
- humidity
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000001179 sorption measurement Methods 0.000 claims abstract description 65
- 238000012544 monitoring process Methods 0.000 claims abstract description 33
- 230000000875 corresponding effect Effects 0.000 claims description 11
- 230000001276 controlling effect Effects 0.000 claims description 5
- 238000005259 measurement Methods 0.000 abstract description 8
- 238000007791 dehumidification Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 230000007774 longterm Effects 0.000 abstract description 3
- 238000007602 hot air drying Methods 0.000 abstract description 2
- 238000010977 unit operation Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2064—Arrangement or mounting of control or safety devices for air heaters
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Gases (AREA)
Abstract
The present disclosure provides a hot dry fan and a control method thereof. The hot air drying machine comprises a fan main body, an air inlet pipe, a humidity monitoring instrument, a controller and an adsorption rotating wheel; the air inlet pipe is communicated with the interior of the fan main body, and a humidity monitoring instrument is arranged at the inlet of the air inlet pipe; the adsorption rotating wheel is arranged in the fan main body, and the adsorption rotating wheel and the humidity monitoring instrument are electrically connected with the controller; the humidity monitoring instrument is used for acquiring the current inlet air humidity of the air inlet pipe; and the controller is used for adjusting the current rotating speed of the adsorption rotating wheel according to the current inlet air humidity of the air inlet pipe. Can avoid personnel to carry out humidity measurement, reduce the opening number of times when treating the dehydrating unit operation, reduce the possibility that the foreign matter got into, guarantee humidity measurement's the degree of accuracy simultaneously, effectively solve hot air dryer long-term operation in the problem of high load state, guaranteed moreover that to treat the inside humidity of dehydrating unit stable, can make personnel obtain at any time simultaneously and treat the inside humidity information of dehydrating unit, guarantee to treat dehydrating unit's dehumidification effect.
Description
Technical Field
The disclosure belongs to the technical field of fans, and particularly relates to a hot air drying fan and a control method thereof.
Background
The high-temperature gas cooled reactor nuclear power station demonstration project installation period is long, the interval between the installation completion of a steam turbine and the first rush and turn is long, the coastal humidity of a plant site is high, and the anti-corrosion maintenance work of the steam turbine is particularly important. The key equipment in the anticorrosion system is a hot dry air blower, and the dehumidification effect of the traditional hot dry air blower is poor along with the increase of the rotating speed of the adsorption rotating wheel; the rotating speed of the adsorption rotating wheel has an upper limit, and the hot dry fan cannot continuously dehumidify when the air supply humidity reaches a certain value.
Disclosure of Invention
The present disclosure is directed to at least one of the technical problems occurring in the prior art, and provides a hot air dryer and a control method thereof.
In one aspect of the present disclosure, a hot air dryer is provided, which includes a blower main body, an air inlet pipe, a humidity monitoring instrument, a controller, and an adsorption rotor;
the air inlet pipe is communicated with the interior of the fan main body, and the humidity monitoring instrument is arranged at the inlet of the air inlet pipe; the adsorption rotating wheel is arranged in the fan main body, and the adsorption rotating wheel and the humidity monitoring instrument are both electrically connected with the controller;
the humidity monitoring instrument is used for acquiring the current inlet air humidity of the air inlet pipe;
and the controller is used for adjusting the current rotating speed of the adsorption rotating wheel according to the current air inlet humidity of the air inlet pipe.
In some embodiments, the controller is further specifically configured to:
and adjusting the current rotating speed of the adsorption rotating wheel according to the current inlet air humidity of the air inlet pipe and the rotating speeds of the adsorption rotating wheels corresponding to different preset humidity values.
In some embodiments, the hot air dryer further comprises a temperature monitoring instrument disposed at an inlet of the air inlet duct, the temperature monitoring instrument being electrically connected to the controller;
the temperature monitoring instrument is used for acquiring the current return air temperature of the air inlet pipe;
the controller is also used for adjusting the current rotating speed of the adsorption rotating wheel according to the current return air temperature of the air inlet pipe.
In some embodiments, the controller is further specifically configured to:
if the current return air temperature of the air inlet pipe is greater than a preset return air temperature threshold value, the current rotating speed of the adsorption rotating wheel is reduced;
and if the current return air temperature of the air inlet pipe is less than a preset return air temperature threshold value, increasing the current rotating speed of the adsorption rotating wheel.
In some embodiments, the hot air dryer further comprises a differential pressure transmitter and a blower, the differential pressure transmitter is arranged on a filter screen of the air inlet pipe, the differential pressure transmitter is electrically connected with the controller, and the blower is respectively communicated with an outlet of the air inlet pipe and an inlet of the blower main body;
the pressure difference transmitter is used for acquiring a current pressure difference signal of the air inlet pipe;
the controller is also used for controlling the hot air dryer to execute corresponding actions according to the current pressure difference signal.
In some embodiments, the controller is further specifically configured to:
if the current differential pressure signal exceeds a first preset differential pressure threshold value, outputting an alarm;
if the current differential pressure signal exceeds a second preset differential pressure threshold value, controlling the hot air dryer to stop;
the second preset differential pressure threshold is greater than the first preset differential pressure threshold.
In another aspect of the present disclosure, there is provided a control method of a hot air dryer, the hot air dryer being the hot air dryer described in the foregoing, the control method including:
acquiring the current air inlet humidity of the air inlet pipe;
and adjusting the current rotating speed of the adsorption rotating wheel according to the current inlet air humidity of the air inlet pipe.
In some embodiments, the adjusting the current rotation speed of the sorption rotary wheel according to the current inlet air humidity of the air inlet pipe includes:
and adjusting the current rotating speed of the adsorption rotating wheel according to the current inlet air humidity of the air inlet pipe and the rotating speeds of the adsorption rotating wheels corresponding to different preset humidity values.
In some embodiments, the control method further comprises:
acquiring the current return air temperature of the air inlet pipe;
and adjusting the current rotating speed of the adsorption rotating wheel according to the current return air temperature of the air inlet pipe.
In some embodiments, said adjusting the current rotation speed of said sorption rotor according to the current return air temperature of said air inlet duct comprises:
if the current return air temperature of the air inlet pipe is greater than a preset return air temperature threshold value, the current rotating speed of the adsorption rotating wheel is reduced;
and if the current return air temperature of the air inlet pipe is less than a preset return air temperature threshold value, increasing the current rotating speed of the adsorption rotating wheel.
The utility model discloses a hot air dryer and control method thereof utilizes humidity monitoring instrument to measure humidity, can avoid personnel to carry out humidity measurement, reduce the opening number of times when waiting to dehumidify device operation, reduce the possibility that the foreign matter got into, guaranteed simultaneously that humidity measurement is not disturbed, improve measurement accuracy, can effectually solve the problem that hot air dryer long term operation is in high load state, and guaranteed to wait that the inside humidity of dehumidified device is stable, can make personnel obtain the inside humidity information of waiting to dehumidify device at any time simultaneously, guarantee to wait dehumidify device's dehumidification effect.
Drawings
Fig. 1 is a schematic structural view of a hot air dryer according to an embodiment of the present disclosure;
fig. 2 is a flowchart of a control method of a hot air dryer according to another embodiment of the present disclosure.
Detailed Description
For a better understanding of the technical aspects of the present disclosure, reference is made to the following detailed description taken in conjunction with the accompanying drawings.
As shown in fig. 1, the embodiment of the present disclosure relates to a hot dry blower 100, and the hot dry blower 100 includes a blower main body 110, an air inlet duct 120, a humidity monitoring meter 130, a controller 140, and an adsorption rotor 150. The air inlet pipe 120 is communicated with the inside of the fan main body 110, the humidity monitoring instrument 130 is disposed at an inlet of the air inlet pipe 120, and the humidity monitoring instrument 130 may be a hygrometer or the like. The adsorption rotating wheel 150 is disposed in the fan main body 110, the adsorption rotating wheel 150 and the humidity monitoring instrument 130 are electrically connected to the controller 140, and the controller 140 may be controlled by a PLC, etc. The humidity monitoring meter 130 is used for acquiring the current inlet air humidity of the air inlet pipe 120. The controller 140 is configured to adjust a current rotation speed of the adsorption rotor 150 according to a current intake air humidity of the intake duct 120.
Specifically, as shown in fig. 1, when performing dehumidification by using the hot air dryer 100 of this embodiment, a device to be dehumidified (such as a steam turbine, etc.) is communicated with the air inlet pipe 120, the humidity monitoring instrument 130 obtains the current inlet humidity of the device to be dehumidified and sends it to the controller 140, the controller 140 adjusts the rotation speed of the adsorption rotor 150 according to the current inlet humidity, for example, when the humidity is high, the controller 140 may increase the rotation speed of the adsorption rotor 150, when the humidity is low, the controller 140 may decrease the rotation speed of the adsorption rotor 150, and the like, which is not limited in this embodiment.
The hot air drier of this embodiment, utilize humidity monitoring instrument measurement humidity, can avoid personnel to carry out humidity measurement, reduce the opening number of times when treating the dehydrating unit operation, reduce the possibility that the foreign matter got into, guaranteed simultaneously that humidity measurement is not disturbed, improve the measuring accuracy, can effectual solution hot air drier long term operation in the problem of high load state, and guaranteed to treat the inside humidity stability of dehydrating unit, can make personnel obtain at any time simultaneously and treat the inside humidity information of dehydrating unit, guarantee to treat dehydrating unit's dehumidification effect.
For example, as shown in fig. 1, the controller 140 is further specifically configured to adjust the current rotation speed of the adsorption rotor according to the current intake air humidity of the intake duct and the rotation speeds of the adsorption rotors corresponding to different preset humidity values.
Specifically, a memory is provided inside or outside the controller 140, and the memory may store a humidity value-rotation speed correspondence table in advance, that is, the memory may store different rotation speeds corresponding to different humidity values therein. Thus, when the controller 140 receives the current intake air humidity, the rotation speed corresponding to the current intake air humidity can be found from the memory, so that the current rotation speed of the adsorption rotating wheel 150 can be adjusted according to the found rotation speed.
Illustratively, as shown in fig. 1, the hot air dryer 100 further includes a temperature monitoring meter 160, the temperature monitoring meter 160 is disposed at an inlet of the air inlet duct 120, the temperature monitoring meter 160 is electrically connected to the controller 140, and the temperature monitoring meter 160 may be a thermometer or the like. The temperature monitoring instrument 160 is used to obtain the current return air temperature of the air inlet pipe 120. The controller 140 is further configured to adjust the current rotation speed of the sorption rotor 150 according to the current return air temperature of the air inlet pipe 120.
Specifically, the inventor of the present disclosure finds that there is a problem in simply adjusting the rotation speed of the adsorption rotor 150 according to the humidity value, and when the current humidity is higher, the rotation speed of the adsorption rotor 150 needs to be increased, but as the adsorption rotor 150 works for a period of time, the temperature of the hot-air drier 100 may be too high, which may affect the service life of each component in the hot-air drier 100, for this reason, the present disclosure further provides a temperature monitoring instrument 160 at the inlet of the air inlet pipe 120, and the temperature monitoring instrument 160 may obtain the current return air temperature of the air inlet pipe 120, so that the current rotation speed of the adsorption rotor 150 may be further adjusted according to the current return air temperature of the air inlet pipe 120, and the service life of the hot-air drier may be effectively prolonged.
Illustratively, the controller 140 is further configured to turn down the current rotation speed of the sorption rotor 150 if the current return air temperature of the air inlet duct 120 is greater than a preset return air temperature threshold. If the current return air temperature of the air inlet pipe 120 is less than the preset return air temperature threshold, the current rotating speed of the adsorption rotating wheel 150 is increased.
Illustratively, as shown in fig. 1, the hot air dryer 100 further includes a differential pressure transducer 170 and a blower 180, the differential pressure transducer 170 is disposed on a filter screen 190 of the air inlet pipe 120, the differential pressure transducer 170 is electrically connected to the controller 140, and the blower 180 is respectively communicated with an outlet of the air inlet pipe 120 and an inlet of the blower main body 110. The differential pressure transmitter 170 is used for acquiring a current differential pressure signal of the air inlet pipe 120. The controller 140 is further configured to control the hot dry air blower 100 to perform a corresponding action according to the current pressure difference signal.
Specifically, if the current differential pressure signal exceeds a first preset differential pressure threshold, the controller 140 outputs an alarm. If the current differential pressure signal exceeds a second preset differential pressure threshold, the controller 140 controls the hot air dryer 100 to stop, where the second preset differential pressure threshold is greater than the first preset differential pressure threshold.
The hot air drier of the embodiment can send the current pressure difference signal to the controller to be compared with a given pressure difference threshold value through the set pressure difference transmitter aiming at the severe operation environment, the alarm is sent out when the current pressure difference signal exceeds the lower pressure difference threshold value, and the machine is stopped when the current pressure difference signal exceeds the higher pressure difference threshold value in a protection mode, so that the operation safety and the air supply quality of the air feeder are ensured.
In another aspect of the present disclosure, as shown in fig. 2, there is provided a method S100 for controlling a hot air dryer, the hot air dryer being the hot air dryer described above, the method S100 comprising:
and S110, acquiring the current air inlet humidity of the air inlet pipe.
And S120, adjusting the current rotating speed of the adsorption rotating wheel according to the current air inlet humidity of the air inlet pipe.
The control method of the hot air drier can effectively solve the problem that the hot air drier runs in a high-load state for a long time, ensures the stability of the humidity inside the device to be dehumidified, can ensure personnel to obtain the humidity information inside the device to be dehumidified at any time, and ensures the dehumidification effect of the device to be dehumidified.
In some embodiments, the adjusting the current rotation speed of the sorption rotary wheel according to the current inlet air humidity of the air inlet pipe includes:
and adjusting the current rotating speed of the adsorption rotating wheel according to the current inlet air humidity of the air inlet pipe and the rotating speeds of the adsorption rotating wheels corresponding to different preset humidity values.
In some embodiments, the control method further comprises:
acquiring the current return air temperature of the air inlet pipe;
and adjusting the current rotating speed of the adsorption rotating wheel according to the current return air temperature of the air inlet pipe.
In some embodiments, said adjusting the current rotation speed of said sorption rotor according to the current return air temperature of said air inlet duct comprises:
if the current return air temperature of the air inlet pipe is greater than a preset return air temperature threshold value, the current rotating speed of the adsorption rotating wheel is reduced;
and if the current return air temperature of the air inlet pipe is less than a preset return air temperature threshold value, increasing the current rotating speed of the adsorption rotating wheel.
It is to be understood that the above embodiments are merely exemplary embodiments that are employed to illustrate the principles of the present disclosure, and that the present disclosure is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the disclosure, and these are to be considered as the scope of the disclosure.
Claims (10)
1. A hot air drier is characterized in that the hot air drier comprises a fan main body, an air inlet pipe, a humidity monitoring instrument, a controller and an adsorption rotating wheel;
the air inlet pipe is communicated with the interior of the fan main body, and the humidity monitoring instrument is arranged at the inlet of the air inlet pipe; the adsorption rotating wheel is arranged in the fan main body, and the adsorption rotating wheel and the humidity monitoring instrument are both electrically connected with the controller;
the humidity monitoring instrument is used for acquiring the current inlet air humidity of the air inlet pipe;
and the controller is used for adjusting the current rotating speed of the adsorption rotating wheel according to the current air inlet humidity of the air inlet pipe.
2. The hot air dryer of claim 1, wherein the controller is further configured to:
and adjusting the current rotating speed of the adsorption rotating wheel according to the current inlet air humidity of the air inlet pipe and the rotating speeds of the adsorption rotating wheels corresponding to different preset humidity values.
3. The hot air dryer of claim 1, further comprising a temperature monitoring instrument disposed at an inlet of the air inlet duct, the temperature monitoring instrument being electrically connected to the controller;
the temperature monitoring instrument is used for acquiring the current return air temperature of the air inlet pipe;
the controller is also used for adjusting the current rotating speed of the adsorption rotating wheel according to the current return air temperature of the air inlet pipe.
4. The hot air dryer of claim 3, wherein the controller is further configured to:
if the current return air temperature of the air inlet pipe is greater than a preset return air temperature threshold value, the current rotating speed of the adsorption rotating wheel is reduced;
and if the current return air temperature of the air inlet pipe is less than a preset return air temperature threshold value, increasing the current rotating speed of the adsorption rotating wheel.
5. The hot air dryer according to any one of claims 1 to 4, further comprising a differential pressure transmitter and an air blower, wherein the differential pressure transmitter is disposed on a filter screen of the air inlet pipe, the differential pressure transmitter is electrically connected to the controller, and the air blower is respectively communicated with an outlet of the air inlet pipe and an inlet of the fan body;
the pressure difference transmitter is used for acquiring a current pressure difference signal of the air inlet pipe;
the controller is also used for controlling the hot air dryer to execute corresponding actions according to the current pressure difference signal.
6. The hot air dryer of claim 5, wherein the controller is further configured to:
if the current differential pressure signal exceeds a first preset differential pressure threshold value, outputting an alarm;
if the current differential pressure signal exceeds a second preset differential pressure threshold value, controlling the hot air dryer to stop;
the second preset differential pressure threshold is greater than the first preset differential pressure threshold.
7. A control method of a hot air dryer, characterized in that the hot air dryer adopts the hot air dryer of any one of claims 1 to 6, and the control method comprises the following steps:
acquiring the current air inlet humidity of the air inlet pipe;
and adjusting the current rotating speed of the adsorption rotating wheel according to the current inlet air humidity of the air inlet pipe.
8. The control method of claim 7, wherein the adjusting the current rotation speed of the sorption rotor according to the current inlet air humidity of the air inlet pipe comprises:
and adjusting the current rotating speed of the adsorption rotating wheel according to the current inlet air humidity of the air inlet pipe and the rotating speeds of the adsorption rotating wheels corresponding to different preset humidity values.
9. The control method according to claim 7, characterized by further comprising:
acquiring the current return air temperature of the air inlet pipe;
and adjusting the current rotating speed of the adsorption rotating wheel according to the current return air temperature of the air inlet pipe.
10. The method of claim 9 wherein said adjusting the current speed of said sorption rotors based on the current return air temperature of said air inlet duct comprises:
if the current return air temperature of the air inlet pipe is greater than a preset return air temperature threshold value, the current rotating speed of the adsorption rotating wheel is reduced;
and if the current return air temperature of the air inlet pipe is less than a preset return air temperature threshold value, increasing the current rotating speed of the adsorption rotating wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110811974.8A CN113375339A (en) | 2021-07-19 | 2021-07-19 | Hot air dryer and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110811974.8A CN113375339A (en) | 2021-07-19 | 2021-07-19 | Hot air dryer and control method thereof |
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| CN113375339A true CN113375339A (en) | 2021-09-10 |
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| CN202110811974.8A Pending CN113375339A (en) | 2021-07-19 | 2021-07-19 | Hot air dryer and control method thereof |
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Citations (6)
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|---|---|---|---|---|
| JP2003074918A (en) * | 2001-09-05 | 2003-03-12 | Daikin Ind Ltd | Humidity regulator and air conditioner using the same |
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| CN209101429U (en) * | 2018-09-20 | 2019-07-12 | 玖鼎节能设备(深圳)有限公司 | A kind of list rotary dehumidifier |
| CN110260423A (en) * | 2019-06-21 | 2019-09-20 | 华南理工大学 | A kind of self-cleaning dehumidification system for runner |
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-
2021
- 2021-07-19 CN CN202110811974.8A patent/CN113375339A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003074918A (en) * | 2001-09-05 | 2003-03-12 | Daikin Ind Ltd | Humidity regulator and air conditioner using the same |
| CN206410294U (en) * | 2016-10-13 | 2017-08-15 | 张春花 | Intelligent runner heat exchanger |
| CN106765701A (en) * | 2016-11-15 | 2017-05-31 | 西部技研环保节能设备（常熟）有限公司 | A kind of energy-saving coating production line manufactures feedway with dry air |
| CN209101429U (en) * | 2018-09-20 | 2019-07-12 | 玖鼎节能设备(深圳)有限公司 | A kind of list rotary dehumidifier |
| CN110260423A (en) * | 2019-06-21 | 2019-09-20 | 华南理工大学 | A kind of self-cleaning dehumidification system for runner |
| CN112032867A (en) * | 2020-08-19 | 2020-12-04 | 中国第一汽车股份有限公司 | Fresh air rotating wheel dehumidification method and system applied to whole vehicle low-temperature environment cabin |
Non-Patent Citations (1)
| Title |
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| 刘光林主编: "《危险化学品事故预防处理应急预案及责任追究实务全书 第2卷》", 31 May 2004, 吉林电子出版社 * |
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