CN212544699U - Multifunctional grain condition simulation test system - Google Patents
Multifunctional grain condition simulation test system Download PDFInfo
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- CN212544699U CN212544699U CN202020810636.3U CN202020810636U CN212544699U CN 212544699 U CN212544699 U CN 212544699U CN 202020810636 U CN202020810636 U CN 202020810636U CN 212544699 U CN212544699 U CN 212544699U
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Abstract
The utility model relates to a multifunctional grain condition simulation test system, which mainly comprises a combined test bin, an axial flow fan, a temperature and humidity detection system, a heat pump high-efficiency cold/heat source and a control system; the combined test bin consists of four independent test single bins, the top of each test single bin is provided with an independent vent and a temperature and humidity detection system, and the bottom of each test single bin is provided with an independent vent and a grain outlet; an axial flow fan arranged outside the combined test bin is connected with a vent at the top of each test single bin through a bin top ventilation pipe network; the heat pump high-efficiency cold/heat source arranged outside the combined test bin is connected with the ventilation opening at the bottom of each test single bin through a bin bottom ventilation pipe network; the temperature and humidity detection system, the axial flow fan and the heat pump efficient cold/heat source are respectively connected with the control system through cables. The simulation test system can simulate the grain condition of a real warehouse and various special working conditions and parameters in a test room, study the influence of temperature and humidity on a grain storage ecological system, and provide reliable basis for practical application.
Description
Technical Field
The utility model relates to a multi-functional grain condition analogue test system belongs to grain safety storage test equipment technical field.
Background
China is a large agricultural country with nearly 14 hundred million population and 9 hundred million farmers, and is also a large food production country and a large consumption country, and the characteristics of large food reserve and long storage time generally exist in China from a national food reserve warehouse to a grain reserve of farmers.
In order to ensure the grain storage safety, some application researches related to the grain storage safety are required to be carried out in a targeted manner, such as the research on the variation trend and the succession rule of grain storage microorganisms in grain piles, the research on the cause of abnormal grain situation changes which endanger the grain storage safety, such as dewing, heating and mildew of grain piles, and the like. Meanwhile, the new technology, the new process and the new equipment for grain storage developed through research need to pass application verification, improve technical parameters, optimize application processes and ensure use performance, and can be popularized and applied in grain storage warehouses. Although the grain storage warehouse is provided with a plurality of manual intervention measures such as ventilation, an air conditioner, a grain cooler, a temperature measuring cable, a monitoring system and the like at present, the grain quantity in each warehouse is over 1000t, the grain storage environment regulation and control reaction is slow, the difficulty is high, the cost is high, and the grain storage safety in the warehouse can be endangered by directly carrying out the experimental research and the technical verification in the grain storage warehouse. Therefore, a multifunctional grain condition simulation test system is needed, which utilizes the test bin to simulate the grain conditions of the real bin and the working conditions and parameters of special conditions and researches the influence of each influence factor on the grain storage safety.
At present, some experimental bins and experimental systems with simpler structures are developed by individual scientific research institutions, but most of the experimental bins have single functions and mainly collect temperature and humidity signals, and although the grain loading quantity of individual experimental bins is close to that of real bins, the occupied space is large, the input of equipment for entering and exiting the bins is large, the cost is high, the auxiliary equipment is not completely matched, the grain storage safety can not be comprehensively monitored, analyzed and processed in multiple parameters from the perspective of a grain storage ecosystem, and various requirements for developing experimental research and processing technical verification aiming at abnormal grain conditions which endanger the grain storage safety, such as grain pile condensation, heating, mildew and the like, can not be met.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a multifunctional grain condition simulation test system which can simulate real-warehouse grain conditions and various special working conditions and parameters in a test room and research the influence of temperature and humidity on a grain storage ecological system; the test bin consists of 4 single bins, each single bin reasonably divides the space through a detachable clapboard, and basic research can be simultaneously carried out under the conditions of no more than 16 different grain and oil types or varieties, different water contents, different working condition parameters and the like.
For solving the above problems, the specific technical scheme of the utility model is as follows: a multifunctional grain condition simulation test system mainly comprises a combined test bin, an axial flow fan, a temperature and humidity detection system, a heat pump efficient cold/heat source and a control system; the combined test bin consists of four independent test single bins, the top of each test single bin is provided with an independent vent and a temperature and humidity detection system, and the bottom of each test single bin is provided with an independent vent and a grain outlet; an axial flow fan arranged outside the combined test bin is connected with a vent at the top of each test single bin through a bin top ventilation pipe network; the heat pump high-efficiency cold/heat source arranged outside the combined test bin is connected with the ventilation opening at the bottom of each test single bin through a bin bottom ventilation pipe network; the temperature and humidity detection system, the axial flow fan and the heat pump efficient cold/heat source are respectively connected with the control system through cables.
The test single bin structure is characterized in that a plurality of layers of partition plate supports with consistent directions are arranged in a bin body of a cuboid, a ventilation pore plate is arranged at the lower part of the bin body of the cuboid, and a grain storage room is arranged between the ventilation pore plate and a bin cover; a ventilation chamber is formed between the ventilation pore plate and the bottom plate of the test single bin, and a bottom ventilation opening is communicated with the ventilation chamber; a vertical partition plate is connected to the partition plate bracket, the outer side of the partition plate extends to the inner wall of the bin body, the lower part of the partition plate extends to the upper surface of the vent hole plate, and the test single bin is divided into 2-4 vertical independent spaces by the partition plate; the top of the test single bin is provided with a bin cover of a wind collecting cover structure, the top center of the bin cover is provided with a top vent, and the top vent is provided with a test bin grain condition detection port.
A plurality of uniformly-distributed sample holes are formed in one side wall of each test single bin, one-way through holes are formed in corresponding positions on the partition plate, and the sample devices can penetrate through the one-way through holes of the partition plate from one independent space to reach the other independent space.
The bin cover is provided with four sight glasses.
The bin top ventilation pipe network is connected with the ultrasonic humidifier through a pipeline, and the ultrasonic humidifier is connected through a control system in a control mode.
The bin top ventilation pipe network is connected with an ozone generator through a pipeline, and the ozone generator is connected with a control system in a control mode.
The multifunctional grain condition simulation test system is composed of a combined test bin, a ventilation system, a temperature and humidity detection and regulation system, a control system and the like, can simulate real bin grain conditions and various special working conditions and parameters in a test room, and researches the influence of temperature and humidity on a grain storage ecological system.
The combined test bin consists of 4 single bins, each single bin reasonably divides the space through a detachable partition plate, and basic research under the conditions of no more than 16 different grain and oil types or varieties, different moisture contents, different working condition parameters and the like can be simultaneously carried out. The simulation system can simulate abnormal grain conditions such as dewing, heating and mildewing of the grain pile, develop basic researches such as change causes and early warning parameters, and application researches such as corresponding prevention and control measures and technical processes, and improve the test efficiency and the effective contrast test environment.
Drawings
Fig. 1 is a schematic structural diagram of a multifunctional grain situation simulation test system.
FIG. 2 is a schematic diagram of the structure inside the test single bin (without partition inside).
Detailed Description
As shown in fig. 1, a multifunctional grain condition simulation test system mainly comprises a combined test bin, an axial flow fan, a temperature and humidity detection system, a heat pump efficient cold/heat source and a control system; the combined test bin consists of four independent test single bins 1, the top of each test single bin 1 is provided with an independent vent and a temperature and humidity detection system 4, and the bottom of each test single bin is provided with an independent vent and a grain outlet; an axial flow fan 5 arranged outside the combined test bin is connected with a vent at the top of each test single bin 1 through a bin top ventilation pipe network 2; a heat pump high-efficiency cold/heat source 6 arranged outside the combined test bin is connected with a vent at the bottom of each test single bin 1 through a bin bottom vent pipe network 3; the temperature and humidity detection system 4, the axial flow fan 5 and the heat pump efficient cold/heat source 6 are respectively connected with the control system 9 through cables.
As shown in fig. 2, the test single bin 1 has a structure that a bin body 11 of the test single bin is a cuboid, the horizontal section of the bin body is a square, and in order to ensure the heat insulation performance of the test single bin 1, high-density PEF heat insulation boards can be lined at the four arms and the bottom of the bin body; a plurality of layers of partition plate brackets 15 with the same direction are arranged in the bin body 11, a ventilation pore plate 14 is arranged at the lower part of the rectangular bin body 11, and a grain storage chamber 12 is arranged between the ventilation pore plate 14 and a bin cover 17; a ventilation chamber 13 is formed between the ventilation hole plate 14 and the bottom plate of the test single bin 1, and a bottom ventilation opening 19 is communicated with the ventilation chamber 13; the ventilation pore plate is provided with a plurality of round holes with the aperture of 1.5mm, 2.0mm and 3.0mm respectively so as to meet the requirement of grain size difference of different stored grain types. A vertical partition plate is connected to the partition plate bracket 15, the outer side of the partition plate extends to the inner wall of the bin body 11, the lower part of the partition plate extends to the upper surface of the vent hole plate 14, and the test single bin 1 is divided into 2-4 vertical independent spaces by the partition plate; the top of the single test bin 1 is provided with a bin cover 17 with a wind collecting cover structure, the lower opening of the bin cover comprises a flange and is connected with the bin body through a bolt, the top center of the bin cover 17 is a top vent, the slopes of four slopes of the bin cover are all 20 degrees, and the central position of each slope is provided with a sight glass 18 with a pipe connecting flange; a grain condition detection port 10 of the test bin is arranged on the top ventilation opening, and the detection port 10 is an access port of the temperature and humidity detection system 4, is also used as a detection port of a handheld anemoscope and a gas concentration detector, and is also used as a gas sampling hole in the bin.
A lateral wall of experimental single storehouse 1 on set up 5 layers of 4 rows totally 20 sample holes 16, install in this lateral wall co-altitude department, correspond the position on the baffle and set up one-way through-hole, the sample ware can pass the one-way through-hole of baffle and reach another independent space from an independent space, sample hole 16 end is equipped with stainless steel pipe to adopt the blind plate shutoff of quick-opening clamp and experimental single storehouse 1.
The bin top ventilation pipe network 2 is connected with an ultrasonic humidifier 7 and an ozone generator 8 through pipelines, and the ultrasonic humidifier 7 and the ozone generator 8 are in control connection through a control system 9.
The control system 9 respectively controls the axial flow fan 5, the heat pump high-efficiency cold/heat source 6, the ultrasonic humidifier 7 and the ozone generator 8 to simulate different temperature and humidity environments, so that abnormal grain conditions such as dewing, heating and mildewing of grain piles are caused, basic researches such as change causes and early warning parameters are carried out, and application researches such as corresponding prevention and control measures and technical processes are carried out.
Claims (6)
1. A multifunctional grain condition simulation test system is characterized in that: the system mainly comprises a combined test bin, an axial flow fan, a temperature and humidity detection system, a heat pump efficient cold/heat source and a control system; the combined test bin consists of four independent test single bins (1), the top of each test single bin (1) is provided with an independent vent and a temperature and humidity detection system (4), and the bottom of each test single bin is provided with an independent vent and a grain outlet; an axial flow fan (5) arranged outside the combined test bin is connected with a ventilation opening at the top of each test single bin (1) through a bin top ventilation pipe network (2); a heat pump efficient cold/heat source (6) arranged outside the combined test bin is connected with a vent at the bottom of each test single bin (1) through a bin bottom ventilation pipe network (3); wherein the temperature and humidity detection system (4), the axial flow fan (5) and the heat pump efficient cold/heat source (6) are respectively connected with the control system (9) through cables.
2. The multi-functional grain situation simulation test system of claim 1, characterized in that: the test single bin (1) is structurally characterized in that a plurality of layers of partition plate supports (15) with consistent directions are arranged in a cuboid bin body (11), a ventilation pore plate (14) is arranged at the lower part of the cuboid bin body (11), and a grain storage chamber (12) is arranged between the ventilation pore plate (14) and a bin cover (17); a ventilation chamber (13) is formed between the ventilation pore plate (14) and the bottom plate of the test single bin (1), and a bottom ventilation opening (19) is communicated with the ventilation chamber (13); a vertical partition plate is connected to the partition plate bracket (15), the outer side of the partition plate extends to the inner wall of the bin body (11), the lower part of the partition plate extends to the upper surface of the ventilation pore plate (14), and the test single bin (1) is divided into 2-4 vertical independent spaces by the partition plate; the top of the single test bin (1) is provided with a bin cover (17) of an air collecting cover structure, the top center of the bin cover (17) is provided with a top vent, and the top vent is provided with a test bin grain condition detection port (10).
3. The multi-functional grain situation simulation test system of claim 2, wherein: a side wall of the single test bin (1) is provided with a plurality of uniformly distributed sample holes (16), the corresponding positions on the partition plate are provided with one-way through holes, and the sample device can pass through the one-way through holes of the partition plate from one independent space to reach the other independent space.
4. The multi-functional grain situation simulation test system of claim 2, wherein: the bin cover (17) is provided with four sight glasses (18).
5. The multi-functional grain situation simulation test system of claim 1, characterized in that: the bin top ventilation pipe network (2) is connected with the ultrasonic humidifier (7) through a pipeline, and the ultrasonic humidifier (7) is in control connection through the control system (9).
6. The multi-functional grain situation simulation test system of claim 1, characterized in that: the bin top ventilation pipe network (2) is connected with an ozone generator (8) through a pipeline, and the ozone generator (8) is in control connection through a control system (9).
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| CN202020810636.3U CN212544699U (en) | 2020-05-15 | 2020-05-15 | Multifunctional grain condition simulation test system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113390463A (en) * | 2021-06-15 | 2021-09-14 | 河南工业大学 | Grain storage simulation multi-field coupling test platform |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113390463A (en) * | 2021-06-15 | 2021-09-14 | 河南工业大学 | Grain storage simulation multi-field coupling test platform |
| CN113390463B (en) * | 2021-06-15 | 2023-01-24 | 河南工业大学 | Grain storage simulation multi-field coupling test platform |
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