CN105607680B - Grain storage Ventilation Control experimental system and its control method - Google Patents
Grain storage Ventilation Control experimental system and its control method Download PDFInfo
- Publication number
- CN105607680B CN105607680B CN201610101631.1A CN201610101631A CN105607680B CN 105607680 B CN105607680 B CN 105607680B CN 201610101631 A CN201610101631 A CN 201610101631A CN 105607680 B CN105607680 B CN 105607680B
- Authority
- CN
- China
- Prior art keywords
- air
- control
- refrigerating plant
- heating device
- humidifier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Storage Of Harvested Produce (AREA)
Abstract
The present invention discloses a kind of grain storage Ventilation Control experimental system and its control method, including simulating silo, refrigerating plant, humidifier, heating device, air supply source, measurement and control unit, the outlet port of air supply source passes through refrigerating plant all the way, heating device is connected with simulation silo, the another road of outlet port of air supply source passes through humidifier, heating device is connected with simulation silo, it includes main control chip to measure with control unit, it is set to the Temperature Humidity Sensor of simulation silo air inlet, the signal output end of Temperature Humidity Sensor is connected with the data input pin of main control chip, the control terminal of main control chip respectively with refrigerating plant, humidifier, the control terminal of heating device is connected.The present invention can realize a variety of grain storage Ventilation Control experiments, and cost is relatively low, portable strong, is suitable for carrying out wide popularization and application in grain storage Ventilation Control research field by the control and regulation to the temperature of vent air, humidity, air quantity.
Description
Technical field
The present invention relates to a kind of grain storage Ventilation Control experimental system and its control methods, belong to storage grain Ventilation Control technology
Field.
Background technology
Storage link be Grain Logistics key link, grain storage ventilation be ensure grain security storage main means it
One.To realize safe grain storage, ensureing grain quality, reduction energy consumption, need to establish grain storage Ventilation Control experimental system, for grain storage
Ventilation process carries out multiple-objection optimization experiment, finds and solves grain storage ventilating problem.The storage grain Ventilation Control experimental system is answered
It is with the following functions：Air themperature at air intake vent and humidity can effectively adjust and control；It is logical with connection and reasonable arrangement
Wind system, wind pressure needed for generation system；With the grain containers etc. that can simulate practical grain storage situation.
Currently, there are mainly two types of modes for grain storage Ventilation Control experiment in laboratory conditions：One is use artificial gas
It waits room to regulate and control inlet air aerial temperature and humidity, expansion ventilation experiment, it is real that a variety of Ventilation Control algorithms can be unfolded in this method
It tests, but occupied space is big, equipment investment is big, of high cost, it is portable poor, it can not carry out in common laboratory；Another kind is
Simple experimental system, including ventilating system, heating system and grain containers are designed, this method investment is small, at low cost, removable
Plant property is strong, but cannot achieve the Effective Regulation to inlet air humiture, is limited only to the research of drying generator aeration control method.
Invention content
In view of the foregoing, the purpose of the present invention is to provide a kind of grain storage Ventilation Control experimental system and its controlling parties
Method can carry out a variety of grain storage Ventilation Control experiments such as temperature, humidity, air quantity of vent air, and cost is relatively low, portable
By force.
To achieve the above object, the present invention uses following technical scheme：
A kind of grain storage Ventilation Control experimental system, including simulation silo, refrigerating plant, humidifier, heating device, gas supply
Source, measurement and control unit,
The outlet port of the air supply source is connected by the refrigerating plant, heating device with the simulation silo all the way,
The another road of outlet port of the air supply source is connected by the humidifier, heating device with the simulation silo,
The measurement includes main control chip, is set to the Temperature Humidity Sensor of the simulation silo air inlet with control unit, should
The signal output end of Temperature Humidity Sensor is connected with the data input pin of the main control chip, the control terminal difference of the main control chip
It is connected with the control terminal of the refrigerating plant, humidifier, heating device.
Further,
The gas flowmeter of the outlet port setting regulating flow quantity of the air supply source.
The simulation silo includes warehouse, which is provided with the air inlet, and gas outlet is provided at the top of the warehouse, should
Lower end is equipped with gas-permeable nets in warehouse, and cavity is formed between the warehouse bottom and the gas-permeable nets.
The humidifier includes micro air pump, electric control valve, humidification chamber, atomising head, valve and water injection bottle, the confession
The micro air pump, electric control valve are set gradually on air source to the air pipeline of the humidification chamber, the water injection bottle by the valve with
The atomization pipeline of atomising head in the humidification chamber is connected.
The refrigerating plant includes evaporator, compressor, condenser, which passes through the compressor and the condenser phase
Connection, the outlet of the condenser is connected with the entrance of the evaporator.
The air supply source is air pump, and the outlet port of the air pump is all the way through air pipeline, the refrigerating plant, ventilation duct
Road, heating device are connected with the simulation silo, and the another road of outlet port of the air pump is filled through air pipeline, the humidification
It sets, air pipeline, heating device are connected with the simulation silo.
The outer wall of the warehouse is coated with thermal insulation layer.
A kind of control method of grain storage Ventilation Control experimental system, including：
Set temperature threshold value, humidity threshold,
By the temperature data of Temperature Humidity Sensor acquisition, humidity data, corresponding and the temperature threshold, humidity threshold
It is compared,
If the temperature data is less than the temperature threshold, heating amount is calculated, and heating device is controlled according to result of calculation and is started
Heating, if the temperature data is higher than the temperature threshold, control refrigerating plant starts refrigeration,
If the humidity data is less than the humidity threshold, humidification amount is calculated, and humidified device is controlled according to result of calculation and is added
Wet air mass flow, if the humidity data is higher than the humidity threshold, control refrigerating plant starts dehumidifying.
It is an advantage of the invention that：
1, system and control method of the invention can control to adjust the temperature, humidity and air quantity of vent air,
Carry out a variety of grain storage Ventilation Control experiments；
2, system occupied space of the invention is smaller, and cost is relatively low, portable strong, is suitable in grain storage Ventilation Control research
Field is widely promoted and applied.
Description of the drawings
Fig. 1 is the system structure diagram of the present invention.
Fig. 2 is the control method flow diagram of the present invention.
Specific implementation mode
Below in conjunction with drawings and examples, the present invention is described in further detail.
Fig. 1 is the system structure diagram of the present invention, as shown, grain storage Ventilation Control disclosed by the invention experiment system
System, including simulation silo 6, refrigerating plant 3, humidifier 4, heating device 5, air pump 1, measurement and control unit 8 etc., air pump 1
Outlet port all the way by refrigerating plant 3, heating device 5 with simulation silo 6 inlet port be connected, the outlet of air pump 1
The mouth another road in end is connected by humidifier 4, heating device 5 with the inlet port of simulation silo 6.
It includes warehouse 63 to simulate silo 6, and 63 bottom of warehouse is provided with air inlet 61, and top is provided with gas outlet 64, in warehouse 63
The gas-permeable nets 62 for preventing grain from falling are arranged close to the position of gas outlet 64 in lower end, between 63 bottom of warehouse and gas-permeable nets 62
It is formed with cavity 66, the wind energy for being conducive to be entered by air inlet 61 warehouse 63 is enough uniformly by the grain in warehouse 63 and through outlet
Mouth 64 is discharged into outside warehouse 63；63 outer wall of warehouse is coated with thermal insulation layer 65.
For refrigerating plant 3 for being freezed to vent air, being dehumidified, the outlet port of air pump 1 passes through air pipeline all the way
It is connected with the air inlet of refrigerating plant 3, the air inlet phase that the gas outlet of refrigerating plant 3 passes through air pipeline and heating device 5
Connection.Refrigerating plant 3 includes evaporator 31, compressor 32, condenser 33, the outlet of evaporator 31 and the entrance phase of compressor 32
Connection, the outlet of compressor 32 are connected with the entrance of condenser 33, and the outlet of condenser 33 is connected with the entrance of evaporator 31
It is logical.
For being humidified to vent air, the another road of outlet port of air pump 1 by air pipeline and adds humidifier 4
The air inlet of wet device 4 is connected, and the gas outlet of humidifier 4 is connected by air pipeline with the air inlet of heating device 5.
Humidifier 4 includes micro air pump 41, electric control valve 42, humidification chamber 43, atomising head 44, valve 45 and water injection bottle 46, air pump 1
Micro air pump 41, electric control valve 42 are set gradually on to the air pipeline of humidification chamber 43,43 top of humidification chamber is provided with water inlet,
Water injection bottle 46 is connected by valve 45, water inlet with the atomization pipeline of the atomising head 44 in humidification chamber 43.
Heating device 5 uses electric heater.
For air pump 1 for supplying, the inlet end draw ambient air of air pump 1, outlet port is divided into two gas through vent line
Road is connected through refrigerating plant 3, heating device 5 with simulation silo 6 all the way, the humidified device 4 of another way, heating device 5 and mould
Quasi- silo 6 is connected, and the gas flowmeter 2 of flow control valve is provided on the air pipeline of 1 outlet port of air pump, for surveying
Air mass flow in amount, adjustment air pipeline.
It measures and includes main control chip, the Temperature Humidity Sensor being set at the air inlet 61 of simulation silo 6 with control unit 8
7, the signal output end of the Temperature Humidity Sensor is connected with the data input pin of main control chip, the control terminal difference of main control chip
It is connected with the control terminal of heating device 5, refrigerating plant 3, electric control valve 42.
Fig. 2 is the control method flow diagram of the present invention, and in conjunction with shown in Fig. 2, system work process of the invention is：
The temperature of air, humidity data at Temperature Humidity Sensor acquisition simulation 6 air inlet 61 of silo, and by the data of acquisition
It is transferred to main control chip, main control chip is by the temperature data T of acquisition and preset temperature threshold TSIt is compared, by the wet of acquisition
Degrees of data H and preset humidity threshold HSIt is compared, if T=TSAnd H=HS, then main control chip do not export control signal, that is, make
Device for cooling 3, humidifier 4, heating device 5 do not work, and silo ventilation state is good；Otherwise,
If T ＜ TS, main control chip calculates the heating amount of heating device 5, and tie according to calculating according to the temperature data of acquisition
Fruit control heating device 5 is begun to warm up, wherein the formula for calculating the heating amount of heating device is：
QT=P1(Ts-T) (1)
Wherein, P1For proportionality coefficient, it is an empirical value (constant) for carrying out measuring using experimental system, utilizes this
The experiment effect that empirical value is calculated is preferable, with the multiple progress of experiment, can be modified to the empirical value.
If T ＞ TS, main control chip control refrigerating plant 3 start to work, freeze to air；
If H ＜ HS, main control chip calculates the aperture of electric control valve 42, and controls adjustment motorized adjustment according to result of calculation
The aperture of valve 42, to increase the flow of humidifying air in air pipeline, wherein calculate the formula of the aperture of electric control valve 42
For：
V=P2(Hs-H) (2)
Wherein, P2For proportionality coefficient, it is an empirical value (constant) for carrying out measuring using experimental system, utilizes this
The experiment effect that empirical value is calculated is preferable, with the multiple progress of experiment, can be modified to the empirical value.
If H ＞ HS, main control chip control refrigerating plant 3 start to work, dehumidify to air.
The grain storage Ventilation Control experimental system and its control method of the present invention, system include simulation silo, refrigerating plant, add
Wet device, heating device, measurement and control unit etc. are acquired by Temperature Humidity Sensor in real time into the air of simulation silo
Temperature, humidity data, by the temperature of main control chip monitoring acquisition, humidity data and the temperature of setting, humidity threshold, according to monitoring
As a result temperature, the humidity etc. of vent air are automatically adjusted, and the air quantity into silo can be adjusted by gas flowmeter.The present invention
By the control and regulation to the temperature of vent air, humidity, air quantity, a variety of grain storage Ventilation Control experiments, and cost can be realized
It is relatively low, portable strong, it is suitable for carrying out wide popularization and application in grain storage Ventilation Control research field.
The above is presently preferred embodiments of the present invention and its technical principle used, for those skilled in the art
For, without departing from the spirit and scope of the present invention, any equivalent change based on the basis of technical solution of the present invention
Change, simple replacement etc. is obvious changes, all fall within the protection scope of the present invention.
Claims (3)
1. grain storage Ventilation Control experimental system, which is characterized in that including simulation silo, refrigerating plant, humidifier, heating dress
Set, air supply source, measurement and control unit,
The outlet port of the air supply source is connected by the refrigerating plant, heating device with the simulation silo all the way,
The another road of outlet port of the air supply source is connected by the humidifier, heating device with the simulation silo,
The measurement includes main control chip, is set to the Temperature Humidity Sensor of the simulation silo air inlet with control unit, this is warm and humid
The signal output end of degree sensor is connected with the data input pin of the main control chip, the control terminal of the main control chip respectively with this
Refrigerating plant, humidifier, heating device control terminal be connected；
The gas flowmeter of the outlet port setting regulating flow quantity of the air supply source；
The simulation silo includes warehouse, which is provided with the air inlet, is provided with gas outlet at the top of the warehouse, the warehouse
Interior lower end is equipped with gas-permeable nets, and cavity is formed between the warehouse bottom and the gas-permeable nets；
The humidifier includes micro air pump, electric control valve, humidification chamber, atomising head, valve and water injection bottle, the air supply source
The micro air pump, electric control valve are set gradually on to the air pipeline of the humidification chamber, the water injection bottle is by the valve and should add
The atomization pipeline of the atomising head of wet intracavitary is connected；
The refrigerating plant includes evaporator, compressor, condenser, which is connected by the compressor with the condenser
Logical, the outlet of the condenser is connected with the entrance of the evaporator；
The air supply source is air pump, the outlet port of the air pump all the way through air pipeline, the refrigerating plant, air pipeline plus
Thermal is connected with the simulation silo, and the another road of outlet port of the air pump is through air pipeline, the humidifier, ventilation
Pipeline, heating device are connected with the simulation silo.
2. grain storage Ventilation Control experimental system according to claim 1, which is characterized in that the outer wall of the warehouse is coated with
Thermal insulation layer.
3. the control method realized based on grain storage Ventilation Control experimental system described in claim 1, which is characterized in that including：
Set temperature threshold value, humidity threshold,
It is corresponding to be carried out with the temperature threshold, humidity threshold by the temperature data of Temperature Humidity Sensor acquisition, humidity data
Compare,
If the temperature data is less than the temperature threshold, heating amount is calculated, and heating device is controlled according to result of calculation and starts heating,
If the temperature data is higher than the temperature threshold, control refrigerating plant starts refrigeration,
If the humidity data is less than the humidity threshold, humidification amount is calculated, and humidified device humidification is controlled according to result of calculation
Air mass flow, if the humidity data is higher than the humidity threshold, control refrigerating plant starts dehumidifying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610101631.1A CN105607680B (en) | 2016-02-24 | 2016-02-24 | Grain storage Ventilation Control experimental system and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610101631.1A CN105607680B (en) | 2016-02-24 | 2016-02-24 | Grain storage Ventilation Control experimental system and its control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105607680A CN105607680A (en) | 2016-05-25 |
| CN105607680B true CN105607680B (en) | 2018-07-27 |
Family
ID=55987674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610101631.1A Active CN105607680B (en) | 2016-02-24 | 2016-02-24 | Grain storage Ventilation Control experimental system and its control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105607680B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108279195B (en) * | 2018-01-26 | 2021-04-27 | 中煤科工集团重庆研究院有限公司 | Refrigeration and dehumidification device, system and method for dust-containing sample gas |
| CN108227796B (en) * | 2018-02-11 | 2023-04-25 | 河南工业大学 | Multi-field coupling experimental device for bulk grain stack |
| CN108870591A (en) * | 2018-06-28 | 2018-11-23 | 江苏永昇空调有限公司 | A kind of grain depot evaporating condensation type air-conditioner set |
| CN109328669A (en) * | 2018-09-28 | 2019-02-15 | 格兰立方能源科技(江苏)有限公司 | A kind of quenched unit of Almightiness type silo low temperature constant humidity |
| CN109353710B (en) * | 2018-12-18 | 2024-06-28 | 刘建江 | Rice fresh-keeping refrigeration and tempering system |
| CN109884948A (en) * | 2019-03-19 | 2019-06-14 | 辽宁省粮食科学研究所 | A kind of Multifunctional grain situation monitoring experiment system and its control method |
| CN111024595B (en) * | 2019-11-27 | 2022-11-01 | 安徽科技学院 | Simulation device for weathering and oxidation of sulfide minerals under dry-wet alternating condition |
| CN116267252A (en) * | 2023-01-31 | 2023-06-23 | 杭氧集团股份有限公司 | Novel low-temperature constant-humidity grain storage system and application method thereof |
| CN117648011B (en) * | 2023-12-05 | 2024-07-02 | 中通服节能技术服务有限公司 | Constant temperature and humidity machine for data center machine room |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101919330A (en) * | 2009-06-10 | 2010-12-22 | 王允良 | Automatic control system of intelligent low-temperature grain storage and control method thereof |
| CN202374734U (en) * | 2011-12-27 | 2012-08-15 | 湖南粮食集团有限责任公司 | Warehouse air circulation system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4530167A (en) * | 1984-04-30 | 1985-07-23 | The Wickes Corporation | In-bin, controlled atmosphere, grain drying systems and the like |
| GB2463747B (en) * | 2009-04-27 | 2010-08-25 | Vegetable Consultancy Services | Ventilation system for a perishable goods store |
| CN202188576U (en) * | 2011-05-10 | 2012-04-11 | 上海金嘉乐空气技术有限公司 | High-pressure micro mist humidifier |
| CN203489412U (en) * | 2013-09-23 | 2014-03-19 | 钟运海 | High-pressure atomizing humidifier |
| CN204739727U (en) * | 2015-05-03 | 2015-11-04 | 徐华英 | Solar energy air humidifier based on FPGA |
| CN205485693U (en) * | 2016-02-24 | 2016-08-17 | 北京联合大学 | Store up grain ventilation control experimental system |
-
2016
- 2016-02-24 CN CN201610101631.1A patent/CN105607680B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101919330A (en) * | 2009-06-10 | 2010-12-22 | 王允良 | Automatic control system of intelligent low-temperature grain storage and control method thereof |
| CN202374734U (en) * | 2011-12-27 | 2012-08-15 | 湖南粮食集团有限责任公司 | Warehouse air circulation system |
Non-Patent Citations (2)
| Title |
|---|
| 实验室粮堆通风模型试验研究;张来林 等;《粮食储藏》;19921231;第26卷(第6期);正文第3-8页 * |
| 筒仓储粮多功能减压管的设计与应用试验;胡健 等;《粮食储藏》;19990630;第28卷(第3期);正文第47-52页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105607680A (en) | 2016-05-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105607680B (en) | Grain storage Ventilation Control experimental system and its control method | |
| CN107200147A (en) | Jelly cloud icing temperature control simulation laboratory suitable for middle-size and small-size aircraft | |
| CN104075546B (en) | A kind of humiture overall-in-one control schema drying room | |
| CN203869997U (en) | High and low temperature wet and hot compound salt haze box | |
| CN206984424U (en) | Jelly cloud icing temperature control simulation laboratory suitable for middle-size and small-size aircraft | |
| CN105974973B (en) | Simulate the method and system of cabinet condensation process | |
| CN202747835U (en) | Rime fog-resistant controller for cooling tower based on discharged air temperature and humidity detection | |
| CN207123040U (en) | A kind of Animal House two fans formula air conditioner intelligent control system | |
| CN104101041A (en) | High cold and heat stress indoor climate simulation device | |
| CN108844195A (en) | A kind of humiture setting value control device and control method | |
| CN107328032A (en) | A kind of Animal House two fans formula air conditioner intelligent control system | |
| CN108756996A (en) | A kind of mine hot wet environment simulating experiment porch | |
| CN205485693U (en) | Store up grain ventilation control experimental system | |
| CN207478612U (en) | A kind of multifunctional comprehensive environmental chamber detecting system | |
| CN206146161U (en) | Heat pump constant humidity stoving case is adjusted to new trend | |
| CN209376675U (en) | A kind of cigar cabinet internal environment regulating device | |
| CN207586778U (en) | A kind of portable humidity device1 | |
| CN208263118U (en) | A kind of new concrete fog room control device | |
| CN206551189U (en) | Concrete cement standard curing box | |
| CN2886406Y (en) | Humidity keeping and quality regulating device for grain barn | |
| CN209138654U (en) | A kind of constant temperature and humidity chamber of adjustable temperature and humidity | |
| CN105145113A (en) | Edible fungus shaping machine | |
| CN105222292B (en) | All-air conditioning experimental system | |
| CN210079545U (en) | Novel constant temperature and humidity box | |
| CN107361556A (en) | A kind of exhibition room temperature and humidity regulation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |