CN220875151U - Forced local breeze circulation green grain storage temperature control system of circulating fan - Google Patents

Forced local breeze circulation green grain storage temperature control system of circulating fan Download PDF

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Publication number
CN220875151U
CN220875151U CN202322206199.0U CN202322206199U CN220875151U CN 220875151 U CN220875151 U CN 220875151U CN 202322206199 U CN202322206199 U CN 202322206199U CN 220875151 U CN220875151 U CN 220875151U
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air
grain
circulation
local
temperature
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林荣华
邬昌荣
徐翔宇
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Chengdu Best Science And Technology Co ltd
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Chengdu Best Science And Technology Co ltd
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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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/51—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture specially adapted for storing agricultural or horticultural products

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Abstract

The utility model discloses a forced local breeze circulation green grain storage temperature control system of a circulating fan, wherein a local breeze circulation pipe network is arranged on a gas tank in a high-rise flat-house bin before grain entering, and ditches are dug around a grain surface after grain entering. The pressure of the circulating fan is used for directly sending air-conditioning cold air to the periphery of the grain pile to reduce the temperature of the grain around the grain pile. The local breeze circulation airflow loop is as follows: air conditioner, cold air, circulating fan, electric valve, circulating vertical pipe, wall-supported air duct or main air duct, grain pile periphery, cabin space, hot air and air conditioner.

Description

Forced local breeze circulation green grain storage temperature control system of circulating fan
Technical Field
The utility model relates to the technical field of temperature regulation and control of grain piles in a large flat house, in particular to a device for directly sending air-conditioning cold air to the periphery of a grain pile by using the pressure of a circulating fan to reduce the temperature of the grain around the grain pile.
Background
The external heat is continuously transferred to the inside of the grain pile in the temperature rising season and the high temperature season, so that the common phenomenon of cold heart and hot skin of the grain pile can be formed. The granary which cannot be regulated by nitrogen gas can only control the temperature to realize the fumigation-free green grain storage. The high-rise flat house with the local breeze circulation pipe network is not arranged at the periphery in the house, after entering the grain, the air conditioner can only control the surface grain temperature in the temperature rising season and the high-temperature season, the grain temperature at the periphery can not be controlled, the damage of pests and fumigation disinsection can not be avoided, and the fumigation-free green grain storage can not be realized.
For a tall and big flat house without local breeze circulation pipe network at the periphery in the house, in order to simultaneously control surface grain temperature to be lower than 17 ℃ and grain temperature at the periphery, and realize fumigation-free green grain storage, the utility model is provided with the local breeze circulation pipe network on the air storage box, ditches are formed on the grain surface after grain is fed, air conditioning cold air is directly led to the periphery of a grain pile by means of the pressure of a circulating fan, and the temperature at the periphery of the grain pile is reduced.
Disclosure of utility model
The utility model aims to provide a forced local breeze circulation green grain storage temperature control system of a circulating fan, which directly sends air-conditioning cold air to the periphery of a grain pile by means of the pressure of the circulating fan, and reduces the temperature of the periphery of the grain pile; and simultaneously, the operation parameters of the air conditioner in different operation environments are adjusted to save energy.
In order to achieve the above object, the present utility model provides the following solutions:
Circulating fan push-in type local breeze circulation green grain storage temperature control system, its characterized in that includes: an air conditioner, an overground cage ventilation system, a local breeze circulation pipe network, a measurement and control terminal and local breeze circulation software;
The air conditioner is arranged on the outer wall of the granary, the air conditioner is connected with an air supply main pipe and an air return main pipe, the air supply main pipe and the air return main pipe penetrate through the granary wall and are communicated with the granary, the air return main pipe is provided with an air return port, the air supply main pipe is provided with a plurality of universal nozzles which enable air distribution to be uniform, and the universal nozzles are arranged above the grain pile;
The air conditioner, the main air supply pipe, the universal nozzle, the air return port, the main air return pipe and the granary are arranged to form an air flow loop of the air conditioner, the cold air, the main air supply pipe, the universal nozzle, the granary, the hot air between the granaries, the air return port and the air conditioner;
the ground cage ventilation system comprises a gas storage box, a main air duct and a branch air duct which are arranged at the bottom of the grain pile; the main air duct is connected with the air storage box, and the branch air duct is connected with the main air duct;
The local breeze circulation pipe network is used for communicating the interior of a bin of an air conditioner air supply main pipe with 1 or more air storage boxes;
The measurement and control terminal integrates and automatically controls the air conditioner, detects the real-time running state of the air conditioner and sets the running parameters of the air conditioner;
the measurement and control terminal is integrated with grain condition detection equipment to detect air temperature and humidity, bin temperature and humidity and grain pile temperature;
The air conditioner integrates a return air temperature and humidity sensor and an air supply temperature and humidity sensor to detect the air supply temperature and humidity and the return air temperature and humidity of the air conditioner; the return air temperature and humidity sensor is arranged outside the bin wall and behind the universal nozzle; after the air supply temperature and humidity sensor is arranged outside the bin wall and at the return air inlet, the distortion of the inspection result is avoided, and the control of the air conditioner is influenced;
The local breeze circulation software is communicated with the measurement and control terminal to acquire real-time grain conditions, air supply temperature and humidity and return air temperature and humidity of the air conditioner, and indirectly control the air conditioner;
Grooves are formed in the periphery of the surface of the grain pile.
Furthermore, the single air storage box and the peripheral area of the bin wall covered by the main air duct and the branch air duct connected with the single air storage box are an independent temperature control area.
Furthermore, when the number of the air conditioners is more than or equal to the number of the air storage boxes, each temperature control area uses a set of local breeze circulation pipe network, namely one air storage box corresponds to one set of local breeze circulation pipe network;
the local breeze circulation pipe network comprises a circulation standpipe, an electric valve and a circulation fan;
The circulating standpipe is arranged between the bin bottom air storage box and the inner part of the air conditioner air supply main pipe bin; the electric valve and the circulating fan are arranged on a circulating standpipe above the grain surface, an air inlet of the circulating standpipe is communicated with the inner part of the main air supply bin of the air conditioner, and an air outlet of the circulating standpipe is connected with the electric valve; and foam heat insulation cotton with the thickness of 50mm is wrapped on the upper part of the grain surface of the circulation standpipe.
Further, when the number of air conditioners is less than the number of air storage boxes, part of air conditioners control 2 temperature control areas, and at the moment, a set of local breeze circulation pipe network corresponds to the 2 air storage boxes;
The local breeze circulation pipe network comprises a circulation standpipe, a horizontal circulation pipe, 2 electric valves, a circulation fan and a circulation main pipe;
The circulating standpipe is arranged on the bin bottom gas storage box; two ends of the horizontal circulation pipe are connected with circulation vertical pipes; the circulating main pipe is connected between the horizontal circulating pipe and the inner part of the air conditioner air supply main pipe bin; the circulating fan is arranged on the circulating main pipe, and the air inlet is communicated with the inner part of the air supply main pipe bin of the air conditioner; the electric valve is arranged on the horizontal circulation pipe and is arranged on two sides of the circulation main pipe in a split manner; the circulating vertical pipe and the horizontal circulating pipe are arranged below the grain surface; the control part of the electric valve is exposed out of the grain surface; and the circulation main pipe is wrapped with foam heat insulation cotton with the thickness of 50 mm.
Further, the local breeze circulation software divides the ambient grain temperature into a plurality of areas according to the positions and the number of the air boxes in the bin, and controls the electric valve and the circulating fan in a regional and time-sharing mode to control the ambient grain temperature; and the measurement and control terminal is integrated and automatically controls the electric valve and the circulating fan to detect the real-time running states of the electric valve and the circulating fan.
Further, the grain surface is dug along the wall to be 30-50 cm wide and 600-800 mm deep, the ventilation resistance around the grain pile is reduced, cold air flowing out of the branch air duct or the main air duct is forced to avoid the central area of the grain pile with high ventilation resistance, and the grain temperature around the grain pile is reduced along the bin wall with small ventilation resistance.
Further, pest trapping lamps are arranged on the grain surface.
Further, the electric valves of the adjacent independent control areas regulate the airflow direction by utilizing the difference of opening and closing states, and meanwhile, ventilation short circuits between the adjacent areas are avoided.
The utility model discloses the following technical effects:
1. The temperature of the surface layer of the grain pile and the temperature of the grain around the grain pile are controlled within a certain range through an air conditioner and a local breeze circulation pipe network, so that the problem of cold core and hot skin of the grain pile in the season of rising air temperature and the season of high temperature is solved.
2. The vertical circulation pipe is installed on the ground cage air storage box, and the inner circulation fan of the circulation pipe sends the cool air in the main air supply pipe to the ground cage ventilation system, namely the cool air is pressed into the grain pile. Through covering the film at the center of the grain surface, reserving grooves around, reserving air along bin walls pressed into the bottom of the grain pile from the groove, forming positive pressure at the bottom of the grain pile, enabling cold air to pass through gaps around the film under the positive pressure, extending the grain pile to ascend around, successfully guiding air conditioning cold air around the grain pile, and reducing the temperature around the grain pile.
3. Through a plurality of universal nozzles, cold air of an air conditioner is sent to a space above the grain surface, and the temperature of the bin and the grain surface is controlled to be at a certain degree.
4. Through the ditching, the height around the grain pile is reduced, ventilation resistance is reduced, air is drained to the periphery of the grain pile as much as possible, and the effect of controlling the grain temperature around is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a system architecture of the present utility model;
FIG. 2 is a schematic diagram of a local breeze circulation network;
FIG. 3 is a schematic diagram of another embodiment of a local breeze circulation network;
FIG. 4 is a schematic diagram of a partition of the present utility model;
fig. 5 is a schematic side view of the present utility model.
1. The air conditioner comprises a ditch, an air conditioner, a bin wall, an electric valve, an air supply main pipe, a universal nozzle, a return air main pipe, an air return opening, an air storage box, a main air duct, an air branch duct, a circulating vertical pipe, an inner circulating fan and a circulating main pipe.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model will be further described in detail with reference to the drawings and detailed description below in order to make the objects, features and advantages of the utility model more comprehensible.
Example 1
As shown in fig. 1 to 3, the press-in type local breeze circulation green grain storage temperature control system of the inner circulation fan 11 provided by the utility model comprises: the system comprises an air conditioner 2, an overground cage ventilation system, a local breeze circulation pipe network, a measurement and control terminal and local breeze circulation software;
In the application of the application, the air conditioner 2 is arranged on the external wall of the granary, the air conditioner 2 is connected with the main air supply pipe 5 and the main air return pipe 6, the main air supply pipe 5 and the main air return pipe 6 penetrate through the granary wall 3 to be communicated with the granary, the main air return pipe 6 is provided with the air return port 61, the main air supply pipe 5 is provided with a plurality of universal nozzles 51 which enable air distribution to be uniform, the universal nozzles 51 are arranged above the granary, cold air is blown to the upper side of the granary through the universal nozzles 51, and the universal nozzles 51 can enable the cold air sent out to be distributed more uniformly among the granaries. Meanwhile, the universal nozzle 51 can prevent cold air from directly flowing out of the return air main pipe 6 after coming out of the air supply main pipe 5.
In the implementation process of the application, an air-conditioning 2, an air supply main pipe 5, a universal nozzle 51, an air return port 61, an air return main pipe 6 and a granary are arranged to form an air flow loop of the air-conditioning 2, cold air, the air supply main pipe 5, the universal nozzle 51, the granary, hot air between the granaries, the air return port 61 and the air-conditioning 2.
By means of the present air flow circuit, the air conditioner 2 generates cold air which is partly delivered to the space above the grain surface through the universal nozzle 51, cools the air in the cabin, and controls the cabin temperature and the surface grain temperature to a certain extent by the low temperature air formed above the film (the structure of the film is not written in the claims here, and deletion is suggested).
In the implementation process of the application, the ground cage ventilation system comprises a gas storage box 7, a main air duct 8 and a branch air duct 9 which are arranged at the bottom of the grain pile; the main air duct 8 is connected with the air storage box 7, the branch air duct 9 is connected with the main air duct 8, the air supply area is further extended to the periphery of the bottom of the whole grain pile, and the cooling effect of the periphery of the grain pile is further improved.
In the implementation process of the application, the grain pile peripheral area covered by the single air storage box 7, the main air duct 8 and the branch air duct 9 which are connected with the single air storage box is an independent temperature control area, as shown by a dotted line frame in fig. 4. Specifically, the branch air duct 9 is divided into: the bottom of the grain pile is provided with an air duct 9 and an air duct 9 along the wall. In actual use, because the air flow of the air channel 9 at the bottom of the grain pile can hardly flow to the periphery of the grain pile leaning against bin wall 3 under the influence of grain resistance, the specific temperature control area is as follows: the single air storage box 7 and the main air duct 8 connected with the single air storage box as well as the grain pile peripheral area covered by the wall branch air duct 9.
The local breeze circulation pipe network is used for communicating the cabin interior of the main air supply pipe 5 of the air conditioner 2 with 1 or more air storage boxes 7. Namely, according to different concrete conditions of the granary and different configuration conditions of the air conditioner 2, one set of local breeze circulation pipe network can control one or more temperature control areas.
In the implementation process of the application, the measurement and control terminal integrates and automatically controls the air conditioner 2, detects the real-time running state of the air conditioner 2 and sets the running parameters of the air conditioner 2. The measurement and control terminal integrates grain condition detection equipment to detect air temperature and humidity, bin temperature and humidity and grain pile temperature.
In the implementation process of the application, the air conditioner 2 integrates a return air temperature and humidity sensor and an air supply temperature and humidity sensor to detect the air supply temperature and humidity and the return air temperature and humidity of the air conditioner 2; the return air temperature and humidity sensor is arranged outside the bin wall 3 and behind the universal nozzle 51; the air supply temperature and humidity sensor is arranged outside the bin wall 3 and after the air return port 61, so that the distortion of the inspection result is avoided, and the control of the air conditioner 2 is influenced.
In the application of the application, local breeze circulation software is communicated with a measurement and control terminal to acquire real-time grain conditions, air supply temperature and humidity and return air temperature and humidity of the air conditioner 2, and indirectly control the air conditioner 2.
In the application of the application, the grooves 1 are arranged around the surface of the grain pile, so that ventilation resistance around the grain pile is reduced, and cold air is forced to flow around the grain pile along the wall branch air duct 9 or the main air duct 8. In order to facilitate construction, grooves 1 around the surface of the grain pile are in a slope-releasing mode. The depth of the ditch 1 is 60-80 cm, and the width of the ditch 1 is 30-50 cm. And adjusting according to the size of the granary.
In the implementation process of the application, the generated cold air generated by the air conditioner 2 is mainly sent to the space above the grain surface through a plurality of universal nozzles 51, so that the phenomenon that the grain temperature of the surface layer part area is out of control due to uneven distribution of the cold air of the air conditioner 2 between bins is prevented. Meanwhile, the distance between the universal nozzle 51 and the air conditioner 2 air return port 61 is increased, so that air short circuit is avoided, namely, part of cold air of the air conditioner 2 flows out of the air supply main pipe 5 and then directly returns to the air conditioner 2 from the air conditioner 2 air return port 61.
Part of cold air of the air conditioner 2 is sent to the upper part of the grain pile through the universal nozzle 51, and the temperature of the control cabin and the grain temperature on the surface layer are controlled to be not more than the control target; the rest air conditioner 2 supplies cold air to the periphery of the bottom of the grain pile through the inner circulation fan 11, the cold core of the grain pile is gradually moved upwards while the temperature of the periphery of the grain pile is kept low, the surface grain temperature is always controlled not to exceed a control target, the temperature of the surface grain is mainly determined by the cold supplementing of the bottom of the grain pile, and the cold core is gradually moved upwards.
In the implementation process of the application, the air supply temperature of the air conditioner 2 is 8-12 ℃ and the difference between the cabin temperature and 17-20 ℃ is larger, and in order to ensure that the temperature of cold air fed into the air storage box 7 is low enough, the air supply pipe of the air conditioner 2 is connected with the inner circulation pipe of the air storage box 7, and the exposed part above the grain pile is wrapped by a heat insulation material with the thickness of 50 mm.
During the use, the local breeze circulation pipe network presses the cold air of partial air conditioner 2 into the bottom of the grain pile through the air storage box 7. Because the grooves 1 are arranged around the surface of the grain pile, the air circulation resistance around the grain pile is obviously smaller than that in the middle of the grain pile, the cold air rises around the grain pile, and finally returns to the air conditioner 2 through the air return port 61, and in the process, the heat around the grain pile is taken away by the cold air of the air conditioner 2, so that the purpose of controlling the temperature of the grain around is realized.
Example 2
In this embodiment, as shown in fig. 2, the number of air conditioners 2 is greater than or equal to the number of air storage boxes 7, and each temperature control area uses a set of local breeze circulation pipe network, i.e. one air storage box 7 corresponds to one set of local breeze circulation pipe network.
In the embodiment application, the local breeze circulation pipe network comprises a circulation standpipe 10, an electric valve 4 and an inner circulation fan 11; the circulating standpipe 10 is arranged between the bin bottom air storage box 7 and the part in the bin of the air supply main pipe 5 of the air conditioner 2; the electric valve 4 and the inner annular flow fan 11 are arranged on a circular flow vertical pipe 10 above the grain surface, an air inlet of the circular flow vertical pipe 10 is communicated with the inner part of a cabin 5 of an air supply main pipe of the air conditioner 2, and an air outlet of the circular flow vertical pipe 10 is connected with the electric valve 4; and a 50mm thick foam heat insulation cotton is wrapped outside the upper part of the grain surface of the circulation standpipe 10.
Example 3
In this embodiment, as shown in fig. 2, when the number of air conditioners 2 is less than the number of air storage boxes 7, part of the air conditioners 2 control 2 temperature control areas, and at this time, a set of local breeze circulation pipe network corresponds to 2 air storage boxes 7;
In the implementation process of the embodiment, the local breeze circulation pipe network comprises a circulation standpipe 10, a horizontal circulation pipe, 2 electric valves 4, an inner circulation fan 11 and a circulation main pipe 12.
The circulating standpipe 10 is arranged on the bin bottom gas storage box 7; two ends of the horizontal circulation pipe are connected with a circulation vertical pipe 10; the circulating main pipe 12 is connected between the horizontal circulating pipe and the part in the 5 bins of the air supply main pipe of the air conditioner 2; the inner annular flow fan 11 is arranged on the annular flow main pipe 12, and an air inlet is communicated with the inner part of the air supply main pipe 5 bin of the air conditioner 2; the electric valve 4 is arranged on the horizontal circulation pipe, and is arranged on two sides of the circulation main pipe 12 in a split manner; the circulating vertical pipe 10 and the horizontal circulating pipe are arranged below the grain surface; the control part of the electric valve 4 exposes out of the grain surface; the circulation main pipe 12 is wrapped with foam heat insulation cotton with the thickness of 50 mm.
Example 4
In the embodiment, the local breeze circulation software divides the ambient grain temperature into a plurality of areas according to the positions and the number of the air boxes 7 in the bin, and controls the electric valve 4 and the inner circulation fan 11 in a zoned and time-sharing mode to control the ambient grain temperature; the measurement and control terminal is integrated and automatically controls the electric valve 4 and the inner annular flow fan 11 to detect real-time running states of the electric valve 4 and the inner annular flow fan 11.
In the implementation process of the application, the forced pressure of the inner annular flow fan 11 is used for sending the cold air of the air conditioner 2 to the periphery of the bin wall 3, so that the defect that the residual pressure outside the air conditioner 2 is insufficient and the air cannot be sent to the periphery of the grain pile is overcome.
In the practice of the application, the electrically operated valve 4 is designed to avoid a short circuit between adjacent zones and to regulate the flow direction of the air. When the air conditioner 2 controls 2 temperature control areas, the electric valve 4 is used for adjusting the air flow direction and controlling the air flow to different areas. In 2 adjacent areas, when the circulating fan 11 in 1 area is started to operate and the other area is stopped, as in the areas A3 and A4 in fig. 1, the branch air duct 9 is too close to the air duct, and the air flow in the operation area without the electric valve 4 directly flows out from the non-operation area to form a ventilation short circuit, and in this case, the electric valve 4 has the function of avoiding the ventilation short circuit.
In the embodiment, the local breeze circulation software starts the air conditioner 2 or stops the air conditioner 2 according to intelligent decisions such as real-time bin temperature, surface grain temperature, bin temperature control target, surface grain temperature control target, mathematical control model, decision flow and the like. An storehouse air conditioner 2 is started or stopped at the same time.
In the application of the embodiment, the local breeze circulation software intelligently decides to open/close the electric valve 4 and start/stop the internal circulation fan 11 according to the regional real-time ambient grain temperature, ambient grain temperature control targets, starting temperature difference, shutdown temperature difference, mathematical control model and decision flow.
In the embodiment application, the local breeze circulation software automatically analyzes the running environment of the air conditioner 2 according to the real-time air temperature, the air temperature speed, the air temperature suddenly-reduced analysis model, so as to automatically modify the return air target temperature of the air conditioner 2. The air conditioner 2 has a higher return air target temperature than the low temperature environment in the high temperature environment, so that the air conditioner 2 has short running time in the high temperature environment and long running time in the low temperature environment, thereby saving energy.
Example 5
In this embodiment, a pest trap lamp is provided above the membrane. The temperature rising season and the high temperature season are used as the periphery of the grain pile with higher grain pile temperature, although the temperature is controlled within 17 ℃, the growth and development speed of pests is slow. However, the pests still have harm to grains, and in order to realize fumigation-free, the pest is trapped by using the ultraviolet trapping lamp and the trapping agent, so that the pest quantity is further reduced. Number of violet trapping lamps: according to the living habit of pests, the purple light trapping lamps are arranged on the grain surface, and the distance between the periphery of the purple light trapping lamps and the walls is not more than 1 meter; insect trapping agent is added to the purple light trapping lamp. The insect flies to the purple light lamp to gather and drop in the trap due to the influence of the purple light and the pheromone, and is manually taken out to kill the insect.
The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to assist in understanding the methods of the present utility model and the core ideas thereof; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.

Claims (8)

1. Circulating fan push-in type local breeze circulation green grain storage temperature control system, its characterized in that includes: an air conditioner, an overground cage ventilation system, a local breeze circulation pipe network, a measurement and control terminal and local breeze circulation software;
The air conditioner is arranged on the outer wall of the granary, the air conditioner is connected with an air supply main pipe and an air return main pipe, the air supply main pipe and the air return main pipe penetrate through the granary wall and are communicated with the granary, the air return main pipe is provided with an air return port, the air supply main pipe is provided with a plurality of universal nozzles which enable air distribution to be uniform, and the universal nozzles are arranged above the grain pile;
The air conditioner, the main air supply pipe, the universal nozzle, the air return port, the main air return pipe and the granary are arranged to form an air flow loop of the air conditioner, the cold air, the main air supply pipe, the universal nozzle, the granary, the hot air between the granaries, the air return port and the air conditioner;
the ground cage ventilation system comprises a gas storage box, a main air duct and a branch air duct which are arranged at the bottom of the grain pile; the main air duct is connected with the air storage box, and the branch air duct is connected with the main air duct;
The local breeze circulation pipe network is used for communicating the interior of a bin of an air conditioner air supply main pipe with 1 or more air storage boxes;
The measurement and control terminal integrates and automatically controls the air conditioner, detects the real-time running state of the air conditioner and sets the running parameters of the air conditioner;
the measurement and control terminal is integrated with grain condition detection equipment to detect air temperature and humidity, bin temperature and humidity and grain pile temperature;
The air conditioner integrates a return air temperature and humidity sensor and an air supply temperature and humidity sensor to detect the air supply temperature and humidity and the return air temperature and humidity of the air conditioner; the return air temperature and humidity sensor is arranged outside the bin wall and behind the universal nozzle; after the air supply temperature and humidity sensor is arranged outside the bin wall and at the return air inlet, the distortion of the inspection result is avoided, and the control of the air conditioner is influenced;
The local breeze circulation software is communicated with the measurement and control terminal to acquire real-time grain conditions, air supply temperature and humidity and return air temperature and humidity of the air conditioner, and indirectly control the air conditioner;
Grooves are formed in the periphery of the surface of the grain pile.
2. The forced local breeze circulation green grain storage temperature control system of the circulating fan according to claim 1, wherein the single air storage tank and the cabin wall surrounding area covered by the main air duct and the branch air duct connected with the single air storage tank are an independent temperature control area.
3. The forced local breeze circulation green grain storage temperature control system of the circulating fan according to claim 2, wherein when the number of the air conditioners is more than or equal to the number of the air storage boxes, each temperature control area uses a set of local breeze circulation pipe network, namely one air storage box corresponds to one set of local breeze circulation pipe network;
the local breeze circulation pipe network comprises a circulation standpipe, an electric valve and a circulation fan;
The circulating standpipe is arranged between the bin bottom air storage box and the inner part of the air conditioner air supply main pipe bin; the electric valve and the circulating fan are arranged on a circulating standpipe above the grain surface, an air inlet of the circulating standpipe is communicated with the inner part of the main air supply bin of the air conditioner, and an air outlet of the circulating standpipe is connected with the electric valve; and foam heat insulation cotton with the thickness of 50mm is wrapped on the upper part of the grain surface of the circulation standpipe.
4. The forced local breeze circulation green grain storage temperature control system of the circulating fan according to claim 3, wherein when the number of the air conditioners is less than the number of the air storage boxes, part of the air conditioners control 2 temperature control areas, and a set of local breeze circulation pipe network corresponds to the 2 air storage boxes;
The local breeze circulation pipe network comprises a circulation standpipe, a horizontal circulation pipe, 2 electric valves, a circulation fan and a circulation main pipe;
The circulating standpipe is arranged on the bin bottom gas storage box; two ends of the horizontal circulation pipe are connected with circulation vertical pipes; the circulating main pipe is connected between the horizontal circulating pipe and the inner part of the air conditioner air supply main pipe bin; the circulating fan is arranged on the circulating main pipe, and the air inlet is communicated with the inner part of the air supply main pipe bin of the air conditioner; the electric valve is arranged on the horizontal circulation pipe and is arranged on two sides of the circulation main pipe in a split manner; the circulating vertical pipe and the horizontal circulating pipe are arranged below the grain surface; the control part of the electric valve is exposed out of the grain surface; and the circulation main pipe is wrapped with foam heat insulation cotton with the thickness of 50 mm.
5. The circulating fan pressed-in type local breeze circulation green grain storage temperature control system according to claim 3 or 4, wherein the local breeze circulation software divides the grain temperature around into a plurality of areas according to the positions and the number of the air boxes in the bin, and controls the electric valve and the circulating fan in a time-sharing manner to control the grain temperature around; and the measurement and control terminal is integrated and automatically controls the electric valve and the circulating fan to detect the real-time running states of the electric valve and the circulating fan.
6. The circulating fan press-in type local breeze circulation green grain storage temperature control system of claim 5, wherein the grain surface is dug to a groove of 30-50 cm wide and 600-800 mm deep along the wall, the ventilation resistance around the grain pile is reduced, cold air flowing out of the branch air duct or the main air duct is forced to avoid a grain pile central area with high ventilation resistance, and the grain temperature around the grain pile is reduced along the bin wall with small ventilation resistance.
7. The forced local breeze circulation green grain storage temperature control system with forced circulation of the circulating fan according to claim 6, wherein the grain surface is provided with pest trapping lamps.
8. The forced local breeze circulation green grain storage temperature control system of the circulating fan according to claim 7, wherein the electric valves of the adjacent independent control areas regulate the flow direction of the air flow by utilizing the difference of opening and closing states, and simultaneously avoid ventilation short circuits between the adjacent areas.
CN202322206199.0U 2023-08-16 2023-08-16 Forced local breeze circulation green grain storage temperature control system of circulating fan Active CN220875151U (en)

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