CN205783942U - The energy-saving control device of fast and stable grain cooling machine air-out humiture - Google Patents
The energy-saving control device of fast and stable grain cooling machine air-out humiture Download PDFInfo
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- CN205783942U CN205783942U CN201620767741.7U CN201620767741U CN205783942U CN 205783942 U CN205783942 U CN 205783942U CN 201620767741 U CN201620767741 U CN 201620767741U CN 205783942 U CN205783942 U CN 205783942U
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- expansion valve
- fluorine
- reheater
- air
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Air Conditioning Control Device (AREA)
Abstract
This utility model relates to the energy-saving control device of a kind of fast and stable grain cooling machine air-out humiture, including the refrigerating plant being made up of the compressor being sequentially connected with, condenser, reservoir, heating power expansion valve and vaporizer and the fluorine reheater being connected in parallel with condenser, vaporizer and fluorine reheater are successively set on air-supply passage, between the outfan and the input of fluorine reheater of compressor, electric expansion valve is set, the input of electric expansion valve controls end and is connected with the outfan of electronic expansion valve controller, and the input of electronic expansion valve controller connects scaling signal.Scaling signal is converted into pulse voltage by electronic expansion valve controller; drive the motor of electric expansion valve; proportion adjustment, the heat again of control fluorine reheater; quickly, linear regulation unit air-out humiture; be effectively ensured unit efficiently, economical operation; guarantee that the fluctuation of machine set outlet humiture is little, stable and control accuracy height.
Description
Technical field
This utility model relates to the energy-saving control device of a kind of fast and stable grain cooling machine air-out humiture.
Background technology
Grain cooling machine is a kind of all-fresh air special air-conditioning units unit, is a kind of for grain cryopreservation, to silo offer
Uniform temperature, the equipment of humidity air.Grain cooling machine must assure that ambient temperature-10～43 DEG C, relative humidity 50～95%
Time, machine set outlet wind pushing temperature 7～18 DEG C ± 0.3 DEG C, relative humidity 65～90% ± 3% is adjustable.Require that unit environment adapts to
Scope is wide, and air blowing control precision is high.
The brand-new refrigeration system of conventional air-conditioning unit is to use multi-stage refrigerating to add energy unloading, configures enough electricity simultaneously and adds
Hot device, by regulating the ability of compressor, makes evaporator outlet temperature reach dew point temperature, by wind pushing temperature setting value regulation electricity
Heating and air quantity, make machine set outlet air-supply humiture reach user's requirement, and this control energy consumption is big, and unit life-time service brings relatively
Big operating cost.
For energy efficient, at present, domestic and international grain cooling machine is general introduces fluorine reheater the most in refrigeration systems, passes through
Controlling the break-make of electromagnetic valve, the input of regulation fluorine reheater utilizes, and makes unit air-out humiture reach user and sets requirement.But
It is that, knowable to the work-based logic of electromagnetic valve, it only has on-off, although unit air-out humiture can reach user's requirement, but
The fluctuation of unit air-out humiture is but jagged, it is difficult to straight line is stable；Moreover, electromagnetic valve is owing to being limited by operating temperature
System, it is necessary to be arranged on the outlet of fluorine reheater, cause fluorine reheater to heat up delayed, causes the fluctuation of air-out humiture big.
It is to say, solve current grain cooling machine fluorine reheater to add the Reasonable input amount of heat, it is to solve paddy drying
The key point that the fluctuation of machine air-out humiture is big.
Summary of the invention
The purpose of this utility model is for the problems referred to above, it is provided that a kind of fast and stable grain cooling machine air-out humiture
Energy-saving control device.
This utility model, including by the compressor being sequentially connected with, condenser, reservoir, heating power expansion valve and vaporizer structure
The refrigerating plant become and the fluorine reheater being connected in parallel with condenser, vaporizer and fluorine reheater are successively set on air-supply passage
On, between the outfan and the input of fluorine reheater of compressor, electric expansion valve is set, the input of electric expansion valve controls
End is connected with the outfan of electronic expansion valve controller, and the input of electronic expansion valve controller connects scaling signal.Electronics is swollen
Scaling signal is converted into pulse voltage by swollen valve control, drives the motor of electric expansion valve, and proportion adjustment, control fluorine are again
The heat again of hot device, quickly, linear regulation unit air-out humiture, be effectively ensured unit efficiently, economical operation, it is ensured that unit goes out
Mouth humiture fluctuation is little, stable and control accuracy height.
This utility model, the downwind side at vaporizer is provided with dew point temperature sensor；Downwind side at fluorine reheater is provided with
Electric heater and air-out Temperature Humidity Sensor.
This utility model, owing to configuring electric expansion valve between compressor and fluorine reheater, is different from general grain cold
But the temperature, pressure sampling mode of machine, this utility model expansion valve controller sampling mode takes communication, outside scaling signal etc.
Variation signal, according to user's needs, can arbitrarily regulate the aperture of electric expansion valve, and step-less adjustment fluorine heat again, this is paddy
Thing cooler is quick, efficient stable unit air-out humiture, it is provided that a new control thinking.
This utility model, electric expansion valve selects to use high temperature resistant valve body, and controller can connect the scaling signal of 0～10V, due to
The aperture of electronic expansion valve body can regulate in 0～100%, when needs fluorine reheating amount, the PLC of grain cooling machine provides
Scaling signal, scaling signal is converted into pulse voltage by controller, drives the motor of electric expansion valve, and the aperture of valve takes
Certainly in scaling signal, and scaling signal is by dew point temperature, air-out dry-bulb temperature setting value and unit actual measurement air-out after vaporizer
The logical relation of dry-bulb temperature provides initial value；The scaling signal of electronic expansion valve controller uses PI to control；Unit compresses
After machine starts, PLC exports certain proportion value to electronic expansion valve controller, it is ensured that fluorine reheater has low discharge cold-producing medium to pass through, fluorine
Reheater keeps certain temperature, it is ensured that fluorine reheater neither hydrops can quickly heat again, effectively reaches quickly to regulate, stable valley
Thing cooler outlet air-supply humiture, energy efficient, reduces the purpose of unit operation cost.
Accompanying drawing explanation
Fig. 1 is the scheme schematic diagram of this utility model embodiment.
In figure, 1, air-out Temperature Humidity Sensor；2, electric heater；3, fluorine reheater；4, dew point temperature sensor；5, steam
Send out device；6, pressure fan；7, compressor；8, heating power expansion valve；9, electronic expansion valve controller；10, electric expansion valve；11, condensation
Device；12, condensation fan；13, reservoir.
Detailed description of the invention
With reference to Fig. 1, the energy-saving control device of a kind of fast and stable grain cooling machine air-out humiture, including by being sequentially connected with
Compressor 7(outfan), condenser 11, reservoir 13, vaporizer 5, heating power expansion valve 8 and compressor 7(input) constitute
Refrigerating plant and the fluorine reheater 3 that is connected in parallel with condenser 11, it is logical that vaporizer 5 and fluorine reheater 3 are successively set on air-supply
On road, the downwind side at vaporizer 5 is provided with dew point temperature sensor 4；Downwind side at fluorine reheater 3 is provided with electric heater 2 He
Air-out Temperature Humidity Sensor 1, between reservoir 13 and vaporizer 5, is provided with heating power expansion valve 8；Compressor 7 outfan with
Between the input of fluorine reheater 3, arranging electric expansion valve 10, the input of electric expansion valve 10 controls end and electric expansion valve control
The outfan of device 9 processed connects, and the input of electronic expansion valve controller 9 connects scaling signal.Due in compressor 7 and fluorine reheating
Between device 3 configure electric expansion valve 10, utilize electric expansion valve 10 aperture can in 0～100% proportion adjustment, work as machine set system
When needing fluorine to heat, machine set PLC providing scaling signal, this scaling signal is converted into pulse electricity by electronic expansion valve controller 9
Pressure, drives the motor of electric expansion valve 10, the observed temperature of dew point temperature sensor 4 after monitoring unit vaporizer 5, with
And air-out Temperature Humidity Sensor 1 actual measurement air-supply humiture and the logical relation of group setup air-out humiture, by regulation, control
The heat again of fluorine reheater 3, quickly, linear regulation unit air-out humiture, be effectively ensured unit efficiently, economical operation, it is ensured that
The fluctuation of machine set outlet humiture is little, stable and control accuracy height.
Claims (2)
1. the energy-saving control device of fast and stable grain cooling machine air-out humiture, including by the compressor (7) being sequentially connected with, cold
Refrigerating plant that condenser (11), reservoir (13), heating power expansion valve (8) and vaporizer (5) are constituted and in parallel with condenser (11)
The fluorine reheater (3) connected, vaporizer (5) and fluorine reheater (3) are successively set on air-supply passage, it is characterised in that: in pressure
Between outfan and the input of fluorine reheater (3) of contracting machine (7), electric expansion valve (10) is set, electric expansion valve (10)
Input controls end and is connected with the outfan of electronic expansion valve controller (9), and the input of electronic expansion valve controller (9) connects ratio
Example signal.
Energy-saving control device the most according to claim 1, it is characterised in that: the downwind side at vaporizer (5) is provided with dew point
Temperature sensor (4)；Downwind side at fluorine reheater (3) is provided with electric heater (2) and air-out Temperature Humidity Sensor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620767741.7U CN205783942U (en) | 2016-07-19 | 2016-07-19 | The energy-saving control device of fast and stable grain cooling machine air-out humiture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620767741.7U CN205783942U (en) | 2016-07-19 | 2016-07-19 | The energy-saving control device of fast and stable grain cooling machine air-out humiture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205783942U true CN205783942U (en) | 2016-12-07 |
Family
ID=58120693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620767741.7U Active CN205783942U (en) | 2016-07-19 | 2016-07-19 | The energy-saving control device of fast and stable grain cooling machine air-out humiture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205783942U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979606A (en) * | 2017-05-09 | 2017-07-25 | 合肥天鹅制冷科技有限公司 | The device of accurate quick control air-supply humiture |
-
2016
- 2016-07-19 CN CN201620767741.7U patent/CN205783942U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979606A (en) * | 2017-05-09 | 2017-07-25 | 合肥天鹅制冷科技有限公司 | The device of accurate quick control air-supply humiture |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |