CN107883744A - A kind of adaptive, self-interacting type heat pump Control System of Airheater and its control method - Google Patents
A kind of adaptive, self-interacting type heat pump Control System of Airheater and its control method Download PDFInfo
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- CN107883744A CN107883744A CN201711044225.7A CN201711044225A CN107883744A CN 107883744 A CN107883744 A CN 107883744A CN 201711044225 A CN201711044225 A CN 201711044225A CN 107883744 A CN107883744 A CN 107883744A
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000003044 adaptive effect Effects 0.000 title claims abstract description 25
- 238000001035 drying Methods 0.000 claims abstract description 98
- 238000010438 heat treatment Methods 0.000 claims abstract description 41
- 239000002918 waste heat Substances 0.000 claims abstract description 31
- 238000002360 preparation method Methods 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 230000006978 adaptation Effects 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 63
- 239000000428 dust Substances 0.000 claims description 18
- 230000000875 corresponding effect Effects 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000010981 drying operation Methods 0.000 claims description 6
- 238000011897 real-time detection Methods 0.000 claims description 6
- 239000003673 groundwater Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 7
- 238000001704 evaporation Methods 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 206010013781 dry mouth Diseases 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000010903 husk Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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
- 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
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B9/00—Preservation of edible seeds, e.g. cereals
- A23B9/08—Drying; Subsequent reconstitution
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/204—Temperature of the air before heating
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/208—Temperature of the air after heating
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/258—Outdoor temperature
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/335—Control of pumps, e.g. on-off control
-
- 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
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/06—Air heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
- F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/08—Humidity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/06—Grains, e.g. cereals, wheat, rice, corn
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Drying Of Solid Materials (AREA)
Abstract
A kind of adaptive, self-interacting type heat pump Control System of Airheater and its control method, for grain heat-drying, formed with fresh air unit, drying waste heat wind processing unit after hot blast preparation unit and drying, temperature sensor, humidity sensor and heat exchanger are provided with fresh air unit, heat exchanger is adjusted to the mode of operation of adaptation, a manufactured fresh air for meeting system requirements by the real time humiture of detection；In drying hot blast preparation unit formed with the waste heat wind for preparing hot blast air intake and drying tower discharge；In waste heat wind processing unit formed with heat treatment air intake and the air-out after heat treatment；The heat treatment is made up of with air intake two parts, and a part is via a fresh air for meeting system requirements made of fresh air unit, and another part is the waste heat wind of drying tower discharge；Air-out after the heat treatment is conveyed in two parts, and a part is discharged via exhaust pipeline, and another part prepares hot blast conveying as drying hot blast preparation unit.
Description
Technical field
The invention belongs to grain heat-drying field, and in particular to a kind of adaptive, self-interacting type heat pump Control System of Airheater
And its control method.
Background technology
In recent years, China's grain heat-drying machinery equipment Industry obtains quickly development, but be in market ratio on the whole
More chaotic, product technology falls behind, and Enterprise Innovation Capability is poor, research and development ability is weaker, and disposable acquisition cost is higher to wait the stage, needs badly
From policies and regulations, the market level, technological layer etc., dryer industry is promoted to continue health and orderly development." drying in time, peace
Put in storage entirely " it is that grain-production entire mechanization solves last key link after ploughing, harrowing, sowing is received, can play ensures grain
Safety effect, and can effectively improve grain quality the effect of.Existing foodstuff drying device is largely using diesel oil, husk etc.
As fuel, environmental pollution weight, drying efficiency are low, poor safety performance, ensure all exist to secure agricultural production and personal safety
Very big hidden danger, it is extremely urgent to carry out replacement transformation.
Heat pump hot-blast stove widely substitutes boiler because many merits such as energy-saving and environmental protection, safety, intelligence, heating,
The industries such as hot water, drying by leaps and bounds develop, and heat-pump-type hot-blast stove is logical so as to reach by the free heat in absorption air
The heating of heat pump air-heater is crossed, ensures that can be up to by entering grain drying tower wind-warm syndrome by 70 degree, is grain heat-drying instead of hot air boiler
Tower provides thermal source, not only realizes zero release of pollutant, also than fuel oil drying saving expense more than 50%, promotes enterprise's abridged edition to increase
Receive, Green Development.Equipment operation is convenient, it is not necessary to which personnel keep watch, and save human cost.But the heat promoted currently on the market
Pump hot-blast stove, which is in, just promotes the stage, and also a lot of innovative technologies need to innovate and broken through.
The project that heat pump hot-blast stove in the market mainly needs to improve has：1st, a large amount of hot and humid hot blasts are arranged
Put, so as to cause substantial amounts of heat waste.2nd, when summer environment temperature be higher than 28 degree, when relative temperature is more than 80%, now when
Leaving air temp is 60 degree, and the relative humidity of air-out is more than 15%, and grain heat-drying can be had adverse effect on.3rd, when environment temperature
When degree is less than 5 degree, the humidity in air is larger, thick frost layer is easily tied on an evaporator, so as to cause unit can not be just
Often heat exchange, unit, which breaks down, shuts down.4th, many useless dirt of drying tower discharge, are not easy to be collected.
Application No.：201620783013.5 utility model application, a kind of " hot-blast stove of grain drying tower " is disclosed,
The interface of the main chamber of burner and body of heater connects, and has face arch in the main chamber on the interface top, main chamber bottom is buried
If secondary blast pipe, secondary blast pipe upper berth insulating, there is the high-temperature flame-proof bed of material on insulating, three times wind pushing box
Positioned at main chamber bottom, tertiary-air pipe is connected with wind pushing box three times, is laterally set between main chamber and smoke combustion room
Rear arch, dedusting auger is set in the root of rear arch and furnace bottom junction, cleaning door is set in heavy grey room bottom, main chamber has sight
Mouth two is examined, pressure sensor is provided with smoke combustion room, temperature sensor is provided with cigarette bridge.
The content of the invention
To solve problem above, a kind of grain for considering temperature, humidity, dust concentration and heat waste degree factor is realized
Food drying operation, the invention provides a kind of adaptive, self-interacting type heat pump Control System of Airheater and its control method, its skill
Art scheme is specific as follows：
A kind of adaptive, self-interacting type heat pump Control System of Airheater and its control method, for grain heat-drying, its feature
It is：Handled in the control system formed with fresh air unit, drying with waste heat wind after hot blast preparation unit and drying
Unit,
Temperature sensor, humidity sensor and heat exchanger are provided with fresh air unit, passes through temperature sensor and humidity
Sensor realizes the real-time detection to extraneous humiture, and the work according to the temperature and humidity regulation heat exchanger detected in real time to adaptation
Pattern, prepare a fresh air for meeting system requirements；
In drying hot blast preparation unit formed with the waste heat wind for preparing hot blast air intake and drying tower discharge；
In waste heat wind processing unit formed with heat treatment air intake and the air-out after heat treatment；
The heat treatment is made up of with air intake two parts, and a part is to meet system via what fresh air unit was prepared
Fresh air of demand, another part are the waste heat wind of drying tower discharge；
Air-out after the heat treatment is conveyed in two parts, and a part is discharged via exhaust pipeline, and another part is as confession
Drying hot blast preparation unit prepares hot blast conveying；
The grain heat-drying control system of presetting, the remaining sirocco reclamation of fresh air is formed by arrangement above.
According to a kind of adaptive, the self-interacting type heat pump Control System of Airheater and its control method of the present invention, its feature
It is：
The heat exchanger is water meter cooler；Variable frequency pump is set to be used for groundwater abstraction water supply surface cooler operation；
Described " the real-time detection to extraneous humiture is realized by temperature sensor and humidity sensor, and according to reality
When the temperature and humidity regulation heat exchanger that detects to adaptation mode of operation ", be specially：
SA1：When detecting that ambient temperature is less than underground water temperature, start variable frequency pump and risen with water meter cooler
Temperature heat exchange operation, to prepare a fresh air for meeting system requirements；
SA2：When detecting that ambient temperature is higher than underground water temperature, stop the fortune of variable frequency pump and water meter cooler
OK；
SA3：When detecting ambient temperature more than or equal to 25 DEG C and extraneous relative humidity is more than 60 percent, or
When detecting ambient temperature more than or equal to 28 DEG C and extraneous relative humidity is more than 65 percent, start variable frequency pump
Dehumidifying heating operation is carried out with water meter cooler.
According to a kind of adaptive, the self-interacting type heat pump Control System of Airheater and its control method of the present invention, its feature
It is：
The drying hot blast preparation unit includes：By compressor, condenser, evaporator, gas-liquid separator and corresponding
Pipeline form circulation system；
Turbulent heat regenerator and corresponding pipeline are provided with described waste heat wind processing unit；
The turbulent heat regenerator is provided with fresh air air inlet, return air air inlet, the first processing wind air outlet and second processing
Wind air outlet；
The fresh air air inlet pipeline is connected to the air outlet of heat exchanger；
The heat treatment air intake place pipeline that the return air air inlet connection is formed via waste heat wind processing unit；
The wind of the first processing wind outlet conveying drains into air by exhaust pipeline；
The wind conduct of the second processing wind air outlet conveying prepares hot blast and is delivered to drying hot blast system with air inlet pipeline
The corresponding air inlet of standby unit；
The hot blast for preparing forms drying wind, pipe by the use of air intake as condenser heat exchange wind regime after condensed device heat exchange
Road is conveyed into drying tower；
Caused waste heat wind is conveyed into turbulent heat time via pipeline, by return air air inlet after drying operation via drying tower
Receive device；
Condenser, evaporator, gas-liquid separator by compressor are sequentially entered by working medium return the heating power of compressor and follow
Ring forms the circulation system for providing drying tower drying wind.
According to a kind of adaptive, the self-interacting type heat pump Control System of Airheater and its control method of the present invention, its feature
It is：
Rotary dust wiper is set, and the rotary dust wiper is used to, by after the waste heat wind dedusting of drying tower discharge, be re-used as heat
The composition part of processing air intake, pipeline to waste heat wind processing unit.
According to a kind of adaptive, the self-interacting type heat pump Control System of Airheater and its control method of the present invention, its feature
It is：
Two-way parallel connection air outlet pipeline is set in the first processing wind air outlet of turbulent heat regenerator, air outlet pipeline is used for all the way
Wind is discharged into air；Two-way parallel connection air inlet pipeline is set in the air inlet of evaporator, air inlet pipeline is used to convey the external world all the way
Fresh air；Another way air inlet pipeline is connected to the another way discharge pipe for the first processing wind air outlet for being arranged at turbulent heat regenerator
Road.
According to a kind of adaptive, the self-interacting type heat pump Control System of Airheater and its control method of the present invention, its feature
It is：
In a casing, the air intake for preparing hot blast is delivered in casing for the compressor and condenser, via with
After the air of casing inner compressor radiating confuses, condenser heat exchange wind regime is re-used as.
According to a kind of adaptive, the self-interacting type heat pump Control System of Airheater and its control method of the present invention, its feature
It is：
First temperature sensor and humidity sensor are set in water meter cooler side, and first temperature sensor is used to detect
Ambient temperature；The humidity sensor is used to detect external environment humidity；
Second temperature sensor is set in drying tower air inlet, the second temperature sensor, which is used to detect, is sent into drying tower
The temperature of wind；
In the first processing wind air outlet of turbulent heat regenerator, three-temperature sensor, the three-temperature sensor are set
For detecting the leaving air temp of the first processing wind air outlet；
Setting data processing unit, the data for handling each temperature sensor and humidity sensor detection, and according to
The comparison generation corresponding actions instruction of the data and setting value of detection,
The first temperature comparison module, second temperature comparison module, the 3rd temperature are provided with the data cell and compares mould
Block and humidity comparison module,
In the first temperature comparison module record have the first desired temperature, second temperature setting value, the 3rd desired temperature,
First humidity set point and the second humidity set point；
Record has drying tower air intake wet-bulb temperature setting value in second temperature comparison module；
Record has lowest temperature setting value in the 3rd temperature comparison module；
It is as follows that sequence is walked according to the specific control of above-mentioned formation：
S1：Circulation system and turbulent heat regenerator where startup compressor, when operation to setting duration, by counting
Corresponding real-time detector data is received according to processing unit；
S2：The real time temperature of first temperature sensor detection is delivered into the first temperature comparison module and the 3rd temperature ratio simultaneously
Compared with module；The real-time humidity that humidity sensor detects is delivered into humidity comparison module；
The real time temperature that second temperature sensor detects is delivered into second temperature comparison module；
The real time temperature that three-temperature sensor detects is delivered into the 3rd temperature comparison module；
S3：When deliver to the first temperature comparison module real-time temperature values be more than the first desired temperature and deliver to humidity ratio compared with
When the real-time humidity value of module is more than the first humidity set point, starts variable frequency pump and water meter cooler carries out dehumidifying work to fresh air
Industry, and by delivering to the real-time temperature values of second temperature comparison module and the real-time comparison of drying tower air intake wet-bulb temperature setting value
Calculate the Real-time frequency conversion regulated quantity of variable frequency pump；
S4：When deliver to the first temperature comparison module real-time temperature values be more than second temperature setting value and deliver to humidity ratio compared with
When the real-time humidity value of module is more than the second humidity set point, starts variable frequency pump and water meter cooler carries out dehumidifying work to fresh air
Industry, and by delivering to the real-time temperature values of second temperature comparison module and the real-time comparison of drying tower air intake wet-bulb temperature setting value
Calculate the Real-time frequency conversion regulated quantity of variable frequency pump；
S5：When the real-time temperature values for delivering to the first temperature comparison module are less than three desired temperatures, start frequency conversion water
Pump and water meter cooler carry out heat exchange operation；
S6：Delivered to when the real-time detected value via the detection of the first temperature sensor for delivering to the 3rd temperature comparison module is more than
During the real-time detected value detected via three-temperature sensor of the 3rd temperature comparison module, open at turbulent heat regenerator first
Reason wind air outlet lead to air pipeline carry out air draft operation, while open located at evaporator air inlet be used for convey the external world
The pipeline of fresh air carries out fresh air input.
A kind of adaptive, the self-interacting type heat pump Control System of Airheater and its control method of the present invention,
First, using turbulent heat recovery technology, by by the damp-heat air of the 35 of drying tower degree or so of high enthalpy with it is logical
Cross 18 degree of water meter cooler or so of drying cold wind and carry out turbulent-flow heat-exchanging, so as to which 35 degree of the hot Huis of high humidity hot blast is incorporated as 23
Degree, 18 degree or so of drying cold wind are increased to 30 degree.By technique, heating capacity can be lifted 30% or so, unit
Power but increases, and energy-saving effect becomes apparent from.
Secondly, when environment temperature is less than 3 degrees Celsius, if evaporator directly absorbs heat, evaporator from outdoor environment
Frosting occurs in surface, so as to which unit is not normally functioning.By outside, by 23 degree or so of air after turbulent heat exchange
Evaporator is given, the evaporating temperature of unit can greatly improve, and evaporator surface is not in not only the phenomenon of frosting, the system of unit
Heat energy power can also greatly improve.
Again, low temperature hot blast technique is preheated using water meter cooler, the heat in underground water is fully recovered to what need to be heated
In cold wind, when improving low ambient temperature, the heating capacity of unit.In summer high temperature high humidity, height is warmed by water meter cooler
Wind is dehumidified, and ensures that the high-temperature hot-air wet bulb relative humidity for being sent into drying tower is less than 12%, simultaneously because into condenser
Wind is the air of the relatively dry after dehumidifying, atmospheric density step-down, so can further be improved by the hot blast temperature of condenser；
Wherein, water pump creates variable frequency pump intelligent control scheme, meeting can be high in variable working condition unit according to the various requirement of variable working condition
Effect, safe operation.
Then, using Rotary dust collecting technology, the dust that drying tower comes out is carried out to focus on collection, improves and enters evaporation
The cleanliness factor of the wind of device, simultaneously because dust collection, can efficiently reduce the solid pollution to air.
Finally, the refrigeration system casing that air-inlet cavity passes through where compressor, can effectively be radiated to compressor, while right
Air intake into condenser is heated up in advance.
In summary, a kind of adaptive, self-interacting type heat pump Control System of Airheater and its control method of the invention, are carried
A kind of grain heat-drying control system for considering temperature, humidity, dust concentration and the factor of heat waste degree four and corresponding is supplied
Control method, realize the semi-automatic operation of grain heat-drying operation, ensure that drying effect improves simultaneously and energy-saving transported with unit
Row reliability.
Brief description of the drawings
Fig. 1 is the path schematic diagram of wind in the system of the present invention；
Fig. 2 is the fresh air unit mode of operation flow chart in the present invention；
The specific control that Fig. 3 is the present invention walks sequence figure；
Fig. 4 is the air inlet pipeline structural representation that evaporator end is located in the present invention.
Embodiment
Below, a kind of adaptive, self-interacting type Heat Pump according to specification drawings and specific embodiments to the present invention
Wind furnace control system and its control method are further described in detail.
A kind of adaptive, self-interacting type heat pump Control System of Airheater and its control method, for grain heat-drying, its feature
It is：Handled in the control system formed with fresh air unit, drying with waste heat wind after hot blast preparation unit and drying
Unit,
Temperature sensor, humidity sensor and heat exchanger are provided with fresh air unit, passes through temperature sensor and humidity
Sensor realizes the real-time detection to extraneous humiture, and the work according to the temperature and humidity regulation heat exchanger detected in real time to adaptation
Pattern, prepare a fresh air for meeting system requirements；
In drying hot blast preparation unit formed with the waste heat wind for preparing hot blast air intake and drying tower discharge；
In waste heat wind processing unit formed with heat treatment air intake and the air-out after heat treatment；
The heat treatment is made up of with air intake two parts, and a part is to meet system via what fresh air unit was prepared
Fresh air of demand, another part are the waste heat wind of drying tower discharge；
Air-out after the heat treatment is conveyed in two parts, and a part is discharged via exhaust pipeline, and another part is as confession
Drying hot blast preparation unit prepares hot blast conveying；
The grain heat-drying control system of presetting, the remaining sirocco reclamation of fresh air is formed by arrangement above.
Wherein,
The heat exchanger is water meter cooler；Variable frequency pump is set to be used for groundwater abstraction water supply surface cooler operation；
Described " the real-time detection to extraneous humiture is realized by temperature sensor and humidity sensor, and according to reality
When the temperature and humidity regulation heat exchanger that detects to adaptation mode of operation ", be specially (as shown in Figure 2)：
SA1：When detecting that ambient temperature is less than underground water temperature, start variable frequency pump and risen with water meter cooler
Temperature heat exchange operation, to prepare a fresh air for meeting system requirements；
SA2：When detecting that ambient temperature is higher than underground water temperature, stop the fortune of variable frequency pump and water meter cooler
OK；
SA3：When detecting ambient temperature more than or equal to 25 DEG C and extraneous relative humidity is more than 60 percent, or
When detecting ambient temperature more than or equal to 28 DEG C and extraneous relative humidity is more than 65 percent, start variable frequency pump
Dehumidifying heating operation is carried out with water meter cooler.
Wherein,
The drying hot blast preparation unit includes：By compressor, condenser, evaporator, gas-liquid separator and corresponding
Pipeline form circulation system；
Turbulent heat regenerator and corresponding pipeline are provided with described waste heat wind processing unit；
The turbulent heat regenerator is provided with fresh air air inlet, return air air inlet, the first processing wind air outlet and second processing
Wind air outlet；
The fresh air air inlet pipeline is connected to the air outlet of heat exchanger；
The heat treatment air intake place pipeline that the return air air inlet connection is formed via waste heat wind processing unit；
The wind of the first processing wind outlet conveying drains into air by exhaust pipeline；
The wind conduct of the second processing wind air outlet conveying prepares hot blast and is delivered to drying hot blast system with air inlet pipeline
The corresponding air inlet of standby unit；
The hot blast for preparing forms drying wind, pipe by the use of air intake as condenser heat exchange wind regime after condensed device heat exchange
Road is conveyed into drying tower；
Caused waste heat wind is conveyed into turbulent heat time via pipeline, by return air air inlet after drying operation via drying tower
Receive device；
Condenser, evaporator, gas-liquid separator by compressor are sequentially entered by working medium return the heating power of compressor and follow
Ring forms the circulation system for providing drying tower drying wind.
Wherein,
Rotary dust wiper is set, and the rotary dust wiper is used to, by after the waste heat wind dedusting of drying tower discharge, be re-used as heat
The composition part of processing air intake, pipeline to waste heat wind processing unit.
Wherein,
Two-way parallel connection air outlet pipeline is set in the first processing wind air outlet of turbulent heat regenerator, air outlet pipeline is used for all the way
Wind is discharged into air；Two-way parallel connection air inlet pipeline is set in the air inlet of evaporator, air inlet pipeline is used to convey the external world all the way
Fresh air；Another way air inlet pipeline is connected to the another way discharge pipe for the first processing wind air outlet for being arranged at turbulent heat regenerator
Road.
Wherein,
In a casing, the air intake for preparing hot blast is delivered in casing for the compressor and condenser, via with
After the air of casing inner compressor radiating confuses, condenser heat exchange wind regime is re-used as.
Wherein,
First temperature sensor and humidity sensor are set in water meter cooler side, and first temperature sensor is used to detect
Ambient temperature；The humidity sensor is used to detect external environment humidity；
Second temperature sensor is set in drying tower air inlet, the second temperature sensor, which is used to detect, is sent into drying tower
The temperature of wind；
In the first processing wind air outlet of turbulent heat regenerator, three-temperature sensor, the three-temperature sensor are set
For detecting the leaving air temp of the first processing wind air outlet；
Setting data processing unit, the data for handling each temperature sensor and humidity sensor detection, and according to
The comparison generation corresponding actions instruction of the data and setting value of detection,
The first temperature comparison module, second temperature comparison module, the 3rd temperature are provided with the data cell and compares mould
Block and humidity comparison module,
In the first temperature comparison module record have the first desired temperature, second temperature setting value, the 3rd desired temperature,
First humidity set point and the second humidity set point；
Record has drying tower air intake wet-bulb temperature setting value in second temperature comparison module；
Record has lowest temperature setting value in the 3rd temperature comparison module；
It is following (as shown in Figure 3) that sequence is walked according to the specific control of above-mentioned formation：
S1：Circulation system and turbulent heat regenerator where startup compressor, when operation to setting duration, by counting
Corresponding real-time detector data is received according to processing unit；
S2：The real time temperature of first temperature sensor detection is delivered into the first temperature comparison module and the 3rd temperature ratio simultaneously
Compared with module；The real-time humidity that humidity sensor detects is delivered into humidity comparison module；
The real time temperature that second temperature sensor detects is delivered into second temperature comparison module；
The real time temperature that three-temperature sensor detects is delivered into the 3rd temperature comparison module；
S3：When deliver to the first temperature comparison module real-time temperature values be more than the first desired temperature and deliver to humidity ratio compared with
When the real-time humidity value of module is more than the first humidity set point, starts variable frequency pump and water meter cooler carries out dehumidifying work to fresh air
Industry, and by delivering to the real-time temperature values of second temperature comparison module and the real-time comparison of drying tower air intake wet-bulb temperature setting value
Calculate the Real-time frequency conversion regulated quantity of variable frequency pump；
S4：When deliver to the first temperature comparison module real-time temperature values be more than second temperature setting value and deliver to humidity ratio compared with
When the real-time humidity value of module is more than the second humidity set point, starts variable frequency pump and water meter cooler carries out dehumidifying work to fresh air
Industry, and by delivering to the real-time temperature values of second temperature comparison module and the real-time comparison of drying tower air intake wet-bulb temperature setting value
Calculate the Real-time frequency conversion regulated quantity of variable frequency pump；
S5：When the real-time temperature values for delivering to the first temperature comparison module are less than three desired temperatures, start frequency conversion water
Pump and water meter cooler carry out heat exchange operation；
S6：Delivered to when the real-time detected value via the detection of the first temperature sensor for delivering to the 3rd temperature comparison module is more than
During the real-time detected value detected via three-temperature sensor of the 3rd temperature comparison module, open at turbulent heat regenerator first
Reason wind air outlet lead to air pipeline carry out air draft operation, while open located at evaporator air inlet be used for convey the external world
The pipeline of fresh air carries out fresh air input.
The course of work is summarized：
Circulation system workflow：
Compressor sucks the gaseous refrigerant of low-temp low-pressure, by being changed into the gaseous state of HTHP after compressed action, is discharged into
Condensation cooling is carried out to condenser and becomes liquid, and the heat distributed is transferred in heated air, and liquid refrigerant passes through section
Flow valve and carry out reducing pressure by regulating flow, the refrigerant after reducing pressure by regulating flow is flowed into evaporator, passes through the heat in evaporator absorption air
It is changed into gaseous refrigerant to be flowed into vapour liquid separator, then is sucked by compressor mouth, is thusly-formed an enclosed heating power cyclic system
System.
Wind system workflow：Fresh air is sent to water meter cooler by air inlet fan, enters back into turbulent heat regenerator and carries out heat
Recovery, then compressor is cooled by compressor cavity, the temperature that condenser be warming up to drying tower demand is reached, is led to
Cross after drying tower dries to grain, the gas of medium temperature high humidity reaches rotary dust wiper and carries out dedusting, is removing the same of dust
When to dust carry out centralized collection, be then fed into turbulent heat regenerator and by water meter cooler fresh air carry out energy-conservation heat return
Receive, two passages are divided into by the wind after turbulent heat regenerator, it is selective to be discharged by exhaust blower and exhaust valve by air-out,
Another part enters evaporator together with the wind by air inlet valve, the wind after being absorbed by evaporator directly by air outlet pipeline,
Discharged by induced-draught fan.
Water system workflow：By water pump, underground water is veered away to water meter cooler, when reaching varying environment temperature, had
When need to dehumidify, the purpose that having time need to be heated up.
Unit start-stop, now water pump be in halted state, compressor is opened, and carries out heating thermal flow process, when unit starts shooting 15
After minute, now system has reached stable operation working condition, records condenser air outlet temperature.
Dehumidify heating mode, when pressure fan mouth dry-bulb temperature >=25 degree, and when relative humidity is more than 60% or dry-bulb temperature
When >=28 degree and relative humidity are more than 65%, ON cycle hydromagnetic, underground water is pumped into water meter cooler, using water meter cooler to sending
The wind of blower fan is dehumidified, and automatically adjusts the running frequency of water pump, and the temperature of condenser air outlet is compared by detection, is being ensured
While the air-out wet-bulb temperature of condenser air outlet is not higher than 12%, a highest condenser air outlet dry bulb temperature is obtained
Degree.So as to reach the hot-air seasoning state most saved.
Heating mode, the operating mode to dehumidify outside heating mode is all heating mode, and two kinds of mode of operations, water are divided under this pattern
The cold heating mode of table and single heating mode, when the temperature of underground water exceedes ambient temperature, the now cold heating mould of table
Formula, now water pump run with highest frequency, the heat of underground water is transferred in pressure fan by water meter cooler.Work as ground water temperature
When degree is less than environment temperature, single heating mode is run, now water pump is out of service.
In unit running process, if detect that turbulent heat regenerator air outlet temperature is less than ambient temperature, beat
Begin to rehearse blower fan, will pass through the low-grade wind discharge of turbulent heat reclamation device, while opens the air inlet valve of evaporator blowing pipeline, will be new
Wind is automatically introduced into by negative pressure.
A kind of adaptive, the self-interacting type heat pump Control System of Airheater and its control method of the present invention,
First, using turbulent heat recovery technology, by by the damp-heat air of the 35 of drying tower degree or so of high enthalpy with it is logical
Cross 18 degree of water meter cooler or so of drying cold wind and carry out turbulent-flow heat-exchanging, so as to which 35 degree of the hot Huis of high humidity hot blast is incorporated as 23
Degree, 18 degree or so of drying cold wind are increased to 30 degree.By technique, heating capacity can be lifted 30% or so, unit
Power but increases, and energy-saving effect becomes apparent from.
Secondly, when environment temperature is less than 3 degrees Celsius, if evaporator directly absorbs heat, evaporator from outdoor environment
Frosting occurs in surface, so as to which unit is not normally functioning.By outside, by 23 degree or so of air after turbulent heat exchange
Evaporator is given, the evaporating temperature of unit can greatly improve, and evaporator surface is not in not only the phenomenon of frosting, the system of unit
Heat energy power can also greatly improve.
Again, low temperature hot blast technique is preheated using water meter cooler, the heat in underground water is fully recovered to what need to be heated
In cold wind, when improving low ambient temperature, the heating capacity of unit.In summer high temperature high humidity, height is warmed by water meter cooler
Wind is dehumidified, and ensures that the high-temperature hot-air wet bulb relative humidity for being sent into drying tower is less than 12%, simultaneously because into condenser
Wind is the air of the relatively dry after dehumidifying, atmospheric density step-down, so can further be improved by the hot blast temperature of condenser；
Wherein, water pump creates variable frequency pump intelligent control scheme, meeting can be high in variable working condition unit according to the various requirement of variable working condition
Effect, safe operation.
Then, using Rotary dust collecting technology, the dust that drying tower comes out is carried out to focus on collection, improves and enters evaporation
The cleanliness factor of the wind of device, simultaneously because dust collection, can efficiently reduce the solid pollution to air.
Finally, the refrigeration system casing that air-inlet cavity passes through where compressor, can effectively be radiated to compressor, while right
Air intake into condenser is heated up in advance.
In summary, a kind of adaptive, self-interacting type heat pump Control System of Airheater and its control method of the invention, are carried
A kind of grain heat-drying control system for considering temperature, humidity, dust concentration and the factor of heat waste degree four and corresponding is supplied
Control method, realize the semi-automatic operation of grain heat-drying operation, ensure that drying effect improves simultaneously and energy-saving transported with unit
Row reliability.
Claims (7)
1. a kind of adaptive, self-interacting type heat pump Control System of Airheater and its control method, for grain heat-drying, its feature exists
In：In the control system list is handled formed with fresh air unit, drying with waste heat wind after hot blast preparation unit and drying
Member,
Temperature sensor, humidity sensor and heat exchanger are provided with fresh air unit, passes through temperature sensor and humidity sensor
Device realizes the real-time detection to extraneous humiture, and the Working mould according to the temperature and humidity regulation heat exchanger detected in real time to adaptation
Formula, prepare a fresh air for meeting system requirements；
In drying hot blast preparation unit formed with the waste heat wind for preparing hot blast air intake and drying tower discharge；
In waste heat wind processing unit formed with heat treatment air intake and the air-out after heat treatment；
The heat treatment is made up of with air intake two parts, and a part is to meet system requirements via what fresh air unit was prepared
A fresh air, another part be drying tower discharge waste heat wind；
Air-out after the heat treatment is conveyed in two parts, and a part is discharged via exhaust pipeline, and another part is used as drying
Conveyed with the hot blast for preparing of hot blast preparation unit；
The grain heat-drying control system of presetting, the remaining sirocco reclamation of fresh air is formed by arrangement above.
2. a kind of adaptive, self-interacting type heat pump Control System of Airheater according to claim 1 and its control method, its
It is characterised by：
The heat exchanger is water meter cooler；Variable frequency pump is set to be used for groundwater abstraction water supply surface cooler operation；
Described " the real-time detection to extraneous humiture is realized by temperature sensor and humidity sensor, and according to real-time inspection
Mode of operation of the temperature and humidity regulation heat exchanger of survey to adaptation ", it is specially：
SA1：When detecting that ambient temperature is less than underground water temperature, startup variable frequency pump carries out heating with water meter cooler and changed
Hot work, to prepare a fresh air for meeting system requirements；
SA2：When detecting that ambient temperature is higher than underground water temperature, stop the operation of variable frequency pump and water meter cooler；
SA3：When detecting ambient temperature more than or equal to 25 DEG C and extraneous relative humidity is more than 60 percent, or when inspection
Measure ambient temperature more than or equal to 28 DEG C and extraneous relative humidity more than 65 percent when, start variable frequency pump and water
Surface cooler carries out dehumidifying heating operation.
3. a kind of adaptive, self-interacting type heat pump Control System of Airheater according to claim 1 and its control method, its
It is characterised by：
The drying hot blast preparation unit includes：By compressor, condenser, evaporator, gas-liquid separator and corresponding pipe
The circulation system that road is formed；
Turbulent heat regenerator and corresponding pipeline are provided with described waste heat wind processing unit；
The turbulent heat regenerator is provided with fresh air air inlet, return air air inlet, the first processing wind air outlet and second processing wind and gone out
Air port；
The fresh air air inlet pipeline is connected to the air outlet of heat exchanger；
The heat treatment air intake place pipeline that the return air air inlet connection is formed via waste heat wind processing unit；
The wind of the first processing wind outlet conveying drains into air by exhaust pipeline；
The wind of the second processing wind air outlet conveying is delivered to drying hot blast preparation list as hot blast is prepared with air inlet pipeline
The corresponding air inlet of member；
It is defeated to form drying wind, pipeline by the use of air intake as condenser heat exchange wind regime after condensed device heat exchange for the hot blast for preparing
It is sent into drying tower；
Caused waste heat wind is conveyed into turbulent recuperation of heat via pipeline, by return air air inlet after drying operation via drying tower
Device；
The thermodynamic cycle structure that condenser, evaporator, gas-liquid separator return compressor is sequentially entered by compressor by working medium
Into the circulation system for providing drying tower drying wind.
4. a kind of adaptive, self-interacting type heat pump Control System of Airheater according to claim 1 and its control method, its
It is characterised by：
Rotary dust wiper is set, and the rotary dust wiper is used to, by after the waste heat wind dedusting of drying tower discharge, be re-used as being heat-treated
With the composition part of air intake, pipeline to waste heat wind processing unit.
5. a kind of adaptive, self-interacting type heat pump Control System of Airheater according to claim 3 and its control method, its
It is characterised by：
Two-way parallel connection air outlet pipeline is set in the first processing wind air outlet of turbulent heat regenerator, air outlet pipeline is used to discharge all the way
Wind is into air；Two-way parallel connection air inlet pipeline is set in the air inlet of evaporator, air inlet pipeline is used to convey extraneous fresh air all the way；
Another way air inlet pipeline is connected to the another way air outlet pipeline for the first processing wind air outlet for being arranged at turbulent heat regenerator.
6. a kind of adaptive, self-interacting type heat pump Control System of Airheater according to claim 3 and its control method, its
It is characterised by：
In a casing, the air intake for preparing hot blast is delivered in casing for the compressor and condenser, via with casing
After the air of inner compressor radiating confuses, condenser heat exchange wind regime is re-used as.
7. a kind of adaptive, self-interacting type heat pump Control System of Airheater and its control according to claim 2,3,4,5
Method, it is characterised in that：
First temperature sensor and humidity sensor are set in water meter cooler side, and first temperature sensor is used to detect the external world
Environment temperature；The humidity sensor is used to detect external environment humidity；
Second temperature sensor is set in drying tower air inlet, the second temperature sensor, which is used to detect, is sent into drying tower wind
Temperature；
Three-temperature sensor is set in the first processing wind air outlet of turbulent heat regenerator, the three-temperature sensor is used for
The leaving air temp of the processing wind air outlet of detection first；
Data processing unit, the data for handling each temperature sensor and humidity sensor detection are set, and according to detection
Data and setting value comparison generation corresponding actions instruction,
In the data cell be provided with the first temperature comparison module, second temperature comparison module, the 3rd temperature comparison module and
Humidity comparison module,
Record has the first desired temperature, second temperature setting value, the 3rd desired temperature, first in the first temperature comparison module
Humidity set point and the second humidity set point；
Record has drying tower air intake wet-bulb temperature setting value in second temperature comparison module；
Record has lowest temperature setting value in the 3rd temperature comparison module；
It is as follows that sequence is walked according to the specific control of above-mentioned formation：
S1：Circulation system and turbulent heat regenerator where startup compressor, when operation to setting duration, by data
Manage unit and receive corresponding real-time detector data；
S2：The real time temperature of first temperature sensor detection is delivered into the first temperature comparison module mould compared with the 3rd temperature simultaneously
Block；The real-time humidity that humidity sensor detects is delivered into humidity comparison module；
The real time temperature that second temperature sensor detects is delivered into second temperature comparison module；
The real time temperature that three-temperature sensor detects is delivered into the 3rd temperature comparison module；
S3：When the real-time temperature values for delivering to the first temperature comparison module are more than the first desired temperature and deliver to humidity comparison module
Real-time humidity value when being more than the first humidity set point, start variable frequency pump and water meter cooler carry out removing wet trade to fresh air, and
Calculated by delivering to the real-time temperature values of second temperature comparison module with the real-time comparison of drying tower air intake wet-bulb temperature setting value
Go out the Real-time frequency conversion regulated quantity of variable frequency pump；
S4：When the real-time temperature values for delivering to the first temperature comparison module are more than second temperature setting value and deliver to humidity comparison module
Real-time humidity value when being more than the second humidity set point, start variable frequency pump and water meter cooler carry out removing wet trade to fresh air, and
Calculated by delivering to the real-time temperature values of second temperature comparison module with the real-time comparison of drying tower air intake wet-bulb temperature setting value
Go out the Real-time frequency conversion regulated quantity of variable frequency pump；
S5：When the real-time temperature values for delivering to the first temperature comparison module are less than three desired temperatures, start variable frequency pump and
Water meter cooler carries out heat exchange operation；
S6：The 3rd is delivered to when the real-time detected value via the detection of the first temperature sensor for delivering to the 3rd temperature comparison module is more than
During the real-time detected value detected via three-temperature sensor of temperature comparison module, open turbulent heat regenerator first and handle wind
Air outlet lead to air pipeline carry out air draft operation, while open located at evaporator air inlet be used for convey extraneous fresh air
Pipeline carry out fresh air input.
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| CN201711044225.7A CN107883744B (en) | 2017-10-31 | 2017-10-31 | Control method of self-adaptive and self-adjusting heat pump hot blast stove control system |
| PCT/CN2018/087795 WO2019085443A1 (en) | 2017-10-31 | 2018-05-22 | Self-adaptive and self-regulating heat pump-based hot blast stove control system and control method thereof |
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| CN201711044225.7A CN107883744B (en) | 2017-10-31 | 2017-10-31 | Control method of self-adaptive and self-adjusting heat pump hot blast stove control system |
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| CN107883744B CN107883744B (en) | 2020-06-12 |
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| CN110895100A (en) * | 2019-12-27 | 2020-03-20 | 上海伯涵热能科技有限公司 | Heat pump unit adopting variable-frequency heat pump subsystem, tobacco leaf baking device and method |
| CN111226802B (en) * | 2020-03-24 | 2024-02-23 | 河南赛诺优农科技有限公司 | Fresh air regulating system, agricultural factory building and fresh air regulating method |
| CN111226802A (en) * | 2020-03-24 | 2020-06-05 | 河南赛诺优农科技有限公司 | Fresh air adjusting system, agricultural workshop and fresh air adjusting method |
| CN112902639A (en) * | 2021-03-01 | 2021-06-04 | 广东省现代农业装备研究所 | Combined intelligent tea drying method and dryer |
| CN115014050A (en) * | 2021-03-03 | 2022-09-06 | 上海交通大学 | Agricultural product low-temperature adsorption drying and heat pump desorption coupling system and method for using same |
| CN115523741B (en) * | 2022-08-09 | 2023-12-19 | 青岛海尔空调器有限总公司 | Control method and device of heat pump dryer and heat pump dryer |
| CN115523741A (en) * | 2022-08-09 | 2022-12-27 | 青岛海尔空调器有限总公司 | Control method and device of heat pump dryer and heat pump dryer |
| CN116294538A (en) * | 2023-05-23 | 2023-06-23 | 五洲丰农业科技有限公司 | Intelligent low-energy-consumption control method for fertilizer production by comprehensively utilizing flue gas waste heat |
| CN116294538B (en) * | 2023-05-23 | 2023-08-22 | 五洲丰农业科技有限公司 | Intelligent low-energy-consumption control method for fertilizer production by comprehensively utilizing flue gas waste heat |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107883744B (en) | 2020-06-12 |
| WO2019085443A1 (en) | 2019-05-09 |
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