CN105953569B - Heating device built in crop dryer automatically controls hot water cyclesystem - Google Patents
Heating device built in crop dryer automatically controls hot water cyclesystem Download PDFInfo
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- CN105953569B CN105953569B CN201610529680.5A CN201610529680A CN105953569B CN 105953569 B CN105953569 B CN 105953569B CN 201610529680 A CN201610529680 A CN 201610529680A CN 105953569 B CN105953569 B CN 105953569B
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- hot water
- heating device
- flow valve
- manifold
- hot
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/10—Heating arrangements using tubes or passages containing heated fluids, e.g. acting as radiative elements; Closed-loop systems
-
- 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
- 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
- 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)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Sustainable Development (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Drying Of Solid Materials (AREA)
Abstract
Heating device built in a kind of crop dryer automatically controls hot water cyclesystem, adopts the following technical scheme that：Flow valve is controlled including hot-water boiler, hand sluice valve, hot water manifold, heat-exchanger pump, pressure sensor, heating device, hot water return pipe, warm water's return duct, temperature control flow valve, pressure control flow valve, moisture.Hot-water boiler upper end is connected to hot water manifold, and hot water manifold is equipped with heat-exchanger pump, hot water manifold connection hot water return pipe and heating device, and the other end of heating device is connected to warm water's return duct, and the water of hot water return pipe and warm water's return duct is back to hot-water boiler.Hot water return pipe is equipped with the pressure being controlled by pressure sensor close to the one end hot water manifold and controls flow valve, hot water manifold is equipped with pressure sensor, controls flow valve by the temperature of temperature sensor control, and heating device is equipped with controls flow valve by the moisture that moisture transducer controls.The present invention have hot water flow realization automatically control, be energy saving, uniform drying, the excellent feature of dry grain quality.
Description
Technical field
The present invention relates to a kind of a kind of automatic controls of heating device built in automatic control system more particularly to crop dryer
Heat water circulation system.
Background technology
Currently, foodstuff drying device drying system is based on low-temperature circulating formula.Low temperature drying can preferably keep grain quality, have
Conducive to guaranteeing the quality, preserve.And heat source selection and its control system are relationship grain heat-drying effect and the key link of production cost.
User mainly selects heat source, main heating source to have with fuel oil, combustion gas, fire coal, firewood, rice from cost, the amount of labour used and labor intensity
Shell, stalk etc. are oil burner, hot-blast stove, the steam boiler etc. of fuel, also there is the electric energy devices such as electric furnace, micro-wave oven, heat pump.Using
Hot-blast stove disposably puts into larger, and the degree of automation is low, and the amount of labour used is big, and converter life is short, and it is big such as to dry center scale, needs more
And take up an area more, and the fire incident easily caused by open fire is blown into dryer.Oil burner, gas furnace disposably put into it is small,
Using effect is preferable, and the degree of automation is higher, but use cost is high, is suitable for baked seed.Steam boiler good drying effect, paddy
Object is heated evenly, and the amount of labour used is small at low cost, but kettleman needs professional training.Electroheating type, pump type heat dryer, the degree of automation
Height, the amount of labour used is small, and use cost is slightly lower if applying for agricultural electricity price, but electricity consumption is big, needs mating transformer equipment, is suitable for small rule
The user of mould, separate unit machine.
Invention content
To solve disadvantages mentioned above, what the present invention provided heating device built in a kind of crop dryer automatically controls hot water circuit
System is used for crop dryer.
To solve the above problems, heating device built in a kind of crop dryer automatically controls hot water cyclesystem using such as
Lower technical solution：Including hot-water boiler, hand sluice valve, heat-exchanger pump, hot water manifold, pressure sensor, temperature control flow valve, pressure
Power controls flow valve, moisture control flow valve, heating device, warm water's return duct, hot water return pipe；Hot-water boiler bottom end is connected to
Hot water manifold, hot water manifold are equipped with heat-exchanger pump, hot water manifold connection hot water return pipes and heating device, the other end of heating device
The water of connection warm water's return duct, hot water return pipe and warm water's return duct is back to hot-water boiler.Hot water return pipe is close
The one end hot water manifold be equipped be controlled by pressure sensor pressure control flow valve, hot water manifold be equipped with pressure sensor and by
The temperature of temperature sensor control controls flow valve, is designed with the moisture controlled by moisture transducer on heating device from the bottom to top
Control flow valve.
There is the present invention hot water flow realization to automatically control, is energy saving, uniform drying, and dry grain quality is excellent
Feature.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Wherein 1. hot-water boilers, 2. hand sluice valves, 3. heat-exchanger pumps, 4. hot water manifold, 5. pressure sensors, the control of 6. temperature
Flow valve, 7. pressure control flow valve, 8. moisture control flow valve, 9. heating devices, 10. warm water's return ducts, 11. hot water
Return duct, 12. moisture transducers, 13. temperature sensors.
Embodiment
Heating device automatically controls hot water cyclesystem built in a kind of crop dryer：Including hot-water boiler 1, manual brake
Valve 2, heat-exchanger pump 3, hot water manifold 4, pressure sensor 5, temperature control flow valve 6, pressure control flow valve 7, moisture control stream
Measure valve 8, heating device 9, warm water's return duct 10, hot water return pipe 11, moisture transducer 12, temperature sensor 13.
1 upper end of hot-water boiler is connected to hot water manifold 4, and hot water manifold 4 is equipped with heat-exchanger pump 3 and hand close to 1 one end of hot-water boiler
Dynamic gate valve 2（Maintenance is used）, straight up, 4 vertical portions of hot water manifold are respectively communicated with heat to the bending of 4 lower horizontals of hot water manifold upwards
The heating device 9 of water return duct 11 and 2 or 2 or more, the equidistant parallel and equal length of heating device 9, heating device 9
The other end is connected to warm water's return duct 10.The other end bending of warm water's return duct 10 is connected to hot water return pipe 11 downwards, temperature
The water of hot water return pipe 10 and hot water return pipe 11 flows to hot-water boiler 1.Hot water return pipe 11 is set close to 4 one end hot water manifold
There is pressure to control flow valve 7,11 place on the lower side of hot water return pipe is equipped with pressure sensor 5 on hot water manifold 4, inclined in heating device 9
Lower place is equipped with temperature and controls flow valve 6, is equipped with moisture control flow valve 8 on heating device 9 from the bottom to top.
Control principle is analyzed：
1, it originally automatically controls hot water cyclesystem and is applied to crop dryer, when each layer paddy moisture of drying machine increases or drops
Low, the moisture transducer 12 in paddy layer sends out signal, and control moisture control flow valve 8 is automatically turned on or closed, to realize
The drying effect of " high humidity high temperature, low humidity low temperature ".
2, being raised and lowered when drying machine layer paddy temperature, the temperature sensor 13 in paddy layer send out signal, control
Heat supply mains 4 on temperature control flow valve 6 automatically turn on or close, to realize paddy within the temperature range of setting into
Row drying.
3, the hot water temperature that hot-water boiler provides is set as 90 DEG C, and it is ± 10% to control temperature and float up and down, to reach
It is basicly stable to hot water temperature.
4, pressure control flow valve 7, moisture control turning off or on for flow valve 8, will necessarily cause in hot water manifold 4
Pressure rise or reduction, pressure sensor 5 will send out the pressure control flow valve 7 on signal control hot water manifold 4 and open automatically
It opens or closes, so that it is guaranteed that the pressure in hot water manifold is substantially at steady state.
Specific embodiment
The pressure value of pressure sensor is set as P；Set the drying temperature of each layer paddy in drying machine as T1, T2, T3,
T4, T5, T6 set the hot water temperature of hot-water boiler offer as 90 DEG C（<± 10%）.
1, as the paddy moisture ＞ 30% for entering drying machine.Moisture on heating device 9 controls 8 standard-sized sheet of flow valve, and
Temperature control flow valve 6 is shown in a fully open operation, and the pressure control flow valve 7 on hot water return pipe 11 will be closed.
2, when enter drying machine paddy moisture from high to low：
（1）If the paddy moisture into drying machine is reduced to 25~30% by ＞ 30%.Moisture control on heating device 9
Flow valve 8 processed will be closed gradually, and the pressure on hot water manifold 4 will be stepped up, and the pressure sensor 5 on hot water manifold 4 is sent out
Signal controls the control flow valve 7 of the pressure on hot water return pipe 11 and gradually opens, and part hot water is let out to hot water return pipe 11, heat
Pressure on supply mains 4 will gradually reduce again.When the pressure on hot water manifold 4 drops to setting value P, on hot water manifold 4
Pressure sensor 5 will also send out signal, control the control flow valve 7 of the pressure on hot water return pipe 11 and be stopped.
（2）If, when continuing to be reduced to 20~25% by 25~30% into the paddy moisture of drying machine, on heating device 9
Moisture control flow valve 8 will continue to close, the pressure on hot water manifold 4 will continue to increase, the pressure sensing on hot water manifold 4
Device 5 sends out signal, and controlling the control flow valve 7 of the pressure on hot water return pipe 11 will continue on, and part hot water is let out to hot water and returned
Flow tube 11, the pressure on hot water manifold 4 will continue to reduce again.When the pressure on hot water manifold 4 drops to setting value P, hot water
Pressure sensor 5 on manifold 4 will also send out signal, control the control flow valve 7 of the pressure on hot water return pipe 11 and be stopped.
3, when enter drying machine paddy moisture from low to high：
（1）If the paddy moisture into drying machine is promoted by 20~25% to 25~30%.Moisture on heating device 9
Control flow valve 8 will be opened gradually, and the pressure on hot water manifold 4 will gradually reduce, and the pressure sensor 5 on hot water manifold 4 is sent out
Go out signal, controls the control flow valve 7 of the pressure on hot water return pipe 11 and gradually close, let out to the hot water amount of hot water return pipe 11 and subtract
Few, the pressure on hot water manifold 4 will be stepped up.When the pressure on hot water manifold 4 rises to setting value P, on hot water manifold 4
Pressure sensor 5 will send out signal, control the control flow valve 7 of the pressure on hot water return pipe 11 and be stopped.
（2）If the paddy moisture into drying machine is promoted by 25~30% to ＞ 30%.Moisture control on heating device 9
Flow valve 8 processed will continue on（It is substantially at full-gear）, the pressure on hot water manifold 4 will continue to reduce, on hot water manifold 4
Pressure sensor 5 send out signal, control the control flow valve 7 of the pressure on hot water return pipe 11 and continue to close（It is substantially at pass
Closed state）, let out to the hot water amount of hot water return pipe 11 and continue to reduce, the pressure on hot water manifold 4 will continue to increase again.Work as hot water
When pressure on manifold 4 rises to setting value P, the pressure sensor 5 on hot water manifold 4 will send out signal, control hot water return
Pressure control flow valve 7 on pipe 11 is stopped.
4, it is more than the certain proportion of setting value T3 when the temperature drift of third layer paddy in drying machine, on hot water manifold 4
Temperature control flow valve 6 will be closed gradually, and the pressure on hot water manifold 4 will be stepped up, and pressure sensor 5 sends out signal, control
Pressure control flow valve 7 on water heating return duct 11 is gradually opened, and part hot water is let out to hot water return pipe 11, hot water manifold 4
On pressure will gradually reduce again.When the pressure on hot water manifold 4 drops to setting value P, the pressure sensing on hot water manifold 4
Device 5 will also send out signal, control the control flow valve 7 of the pressure on hot water return pipe 11 and be stopped.
5, when the temperature of third layer paddy in drying machine is relatively low, it is less than the certain proportion of setting value T3, on hot water manifold 4
Temperature control flow valve 6 will be opened gradually, and the pressure on hot water manifold 4 will gradually decline, and pressure sensor 5 sends out signal, control
Pressure control flow valve 7 on water heating return duct 11 is gradually closed, and is let out to hot water amount's reduction of hot water return pipe 11, hot water is total
Pressure on pipe 4 will be stepped up again.When the pressure rise on hot water manifold 4 is to setting value P, the pressure on hot water manifold 4
Sensor 5 will also send out signal, control the control flow valve 7 of the pressure on hot water return pipe 11 and be stopped.
Claims (2)
1. heating device automatically controls hot water cyclesystem built in a kind of crop dryer, it is characterised in that including water bath
Stove, hand sluice valve, hot water manifold, heat-exchanger pump, pressure sensor, heating device, hot water return pipe, warm water's return duct, temperature
It controls flow valve, pressure control flow valve, moisture and controls flow valve；Hot-water boiler upper end is connected to hot water manifold, and hot water manifold is set
There are heat-exchanger pump, hot water manifold connection hot water return pipes and heating device, the other end of heating device to be connected to warm water's return duct, heat
The water of water return duct and warm water's return duct is back to hot-water boiler, and hot water return pipe is equipped with close to the one end hot water manifold by pressing
The pressure of force snesor control controls flow valve, the temperature that hot water manifold is equipped with pressure sensor, is controlled by temperature sensor
Flow valve is controlled, heating device is equipped with controls flow valve by the moisture that moisture transducer controls.
2. heating device built in a kind of crop dryer according to claim 1 automatically controls hot water cyclesystem, institute
The equidistant parallel and equal length of heating device stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610529680.5A CN105953569B (en) | 2016-07-07 | 2016-07-07 | Heating device built in crop dryer automatically controls hot water cyclesystem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610529680.5A CN105953569B (en) | 2016-07-07 | 2016-07-07 | Heating device built in crop dryer automatically controls hot water cyclesystem |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105953569A CN105953569A (en) | 2016-09-21 |
| CN105953569B true CN105953569B (en) | 2018-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610529680.5A Active CN105953569B (en) | 2016-07-07 | 2016-07-07 | Heating device built in crop dryer automatically controls hot water cyclesystem |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109539551A (en) * | 2017-09-22 | 2019-03-29 | 江苏智谋科技有限公司 | A kind of numerically controlled boiler of nursery |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3802342C2 (en) * | 1988-01-27 | 1997-10-30 | Toyotomi Kogyo Co Ltd | Hot water circulation system with an open tank and a water heater |
| CN2084183U (en) * | 1990-12-19 | 1991-09-04 | 克山县克山粮库 | Laminated grain direr |
| KR100861167B1 (en) * | 2007-07-19 | 2008-09-30 | 정의갑 | hot water circulation system |
| CN203478341U (en) * | 2013-08-29 | 2014-03-12 | 宋波 | Large-pot cooking range type energy-saving hot water heating stove |
| CN205825685U (en) * | 2016-07-07 | 2016-12-21 | 江西省农业科学院农产品加工研究所 | The built-in heater of crop dryer automatically control hot water cyclesystem |
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| CB03 | Change of inventor or designer information |
Inventor after: Zhou Jinying Inventor after: Ma Yanbo Inventor after: Feng Jianxiong Inventor after: Chen Guipeng Inventor after: He Jialin Inventor after: Xiong Wenhua Inventor before: Ma Yanbo Inventor before: Feng Jianxiong Inventor before: Zhou Jinying Inventor before: Chen Guipeng Inventor before: He Jialin Inventor before: Xiong Wenhua |
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