A double temperature control ventilation device for a shallow silo

Abstract

A dual-temperature control and ventilation device for a shallow circular silo includes an air conditioner, a return air duct, and an outlet air duct. The return air inlet of the air conditioner is connected to a first ventilation opening of the shallow circular silo via the return air duct, and the outlet air duct is connected to a second ventilation opening of the shallow circular silo via the outlet air duct. The first ventilation opening has an upper opening at its top and a lower opening at its bottom. A first ventilation opening cover is hinged to the top of the first ventilation opening, and the first ventilation opening cover has a through hole. An upper cover sleeve and a lower cover sleeve are respectively installed on the upper and lower ends of the through hole. The return air duct is connected to a return air duct sleeve. The upper cover sleeve and the return air duct sleeve are connected via a connecting pipe. A flexible hose is connected to the bottom of the lower cover sleeve, and the lower end of the flexible hose extends out from the lower opening. The end of the flexible hose is connected to the pipe network around the silo wall or the pipe network of the grain pile inserted into the grain pile. This utility model can achieve dual temperature control of the grain / grain pile interior and surface around the silo wall without installing a fan, saving equipment operating costs and ensuring the safety of equipment operation.

Description

Technical Field

[0001] This utility model relates to the field of shallow circular silo temperature control technology, and more specifically to a shallow circular silo dual temperature control and ventilation device. Background Technology

[0002] Shallow round silos are warehouses used for long-term grain storage. To prevent grain from heating up and becoming moldy due to excessively high temperature or humidity inside the silo, air conditioning is usually installed inside for cooling and dehumidification. The return air vents and outlet air vents of the dedicated air conditioning unit for shallow round silos are connected to the ventilation openings on the silo roof to control the temperature of the grain inside.

[0003] However, due to the cross-ventilation of grains such as corn and soybeans stored in shallow circular silos, especially those near the silo walls, they are prone to overheating and clumping. To address these issues, existing solutions include a dynamic gas temperature and humidity control system for shallow circular silos, as disclosed in Chinese Utility Model Patent No. CN 209710779U. This system includes an air conditioner and at least one gas extraction device, both of which are installed inside the shallow circular silo. The gas extraction device comprises a main pipe, branch pipes, and an exhaust fan. The main pipe is connected to the exhaust fan, and the main pipe is arranged along its length in a plurality of branch pipes. Each of the branch pipes has a plurality of air inlets on its lower sidewall.

[0004] While the above patents can reduce the temperature inside grain piles, this type of gas extraction device, which installs a fan on the main pipe, cannot achieve dual extraction from both the inside and surface of the grain pile. Therefore, we provide a shallow circular silo dual temperature control and ventilation device. Utility Model Content

[0005] This invention provides a dual temperature control and ventilation device for shallow circular silos to solve the problem that existing gas temperature and humidity control systems in shallow circular silos cannot achieve dual ventilation from both the inside and surface of the grain pile.

[0006] The present invention adopts the following technical solution: A dual temperature control and ventilation device for a shallow circular silo includes an air conditioner, a return air duct, and an outlet air duct. The return air inlet of the air conditioner is connected to a first ventilation opening of the shallow circular silo via the return air duct, and the outlet air outlet of the air conditioner is connected to a second ventilation opening of the shallow circular silo via the outlet air duct. The first ventilation opening has an upper opening and a lower opening at its top and bottom, respectively. A ventilation opening cover plate is hinged to the top of the first ventilation opening to close the upper opening. The ventilation opening cover plate has a through hole, and an upper cover plate sleeve and a lower cover plate sleeve are respectively installed on the upper and lower ends of the through hole. The return air duct is also connected to a return air duct sleeve. The upper cover plate sleeve and the return air duct sleeve are connected via a connecting pipe. A flexible hose is connected to the bottom of the lower cover plate sleeve. The lower end of the flexible hose extends out from the lower opening and the end of the flexible hose is connected to the silo wall pipe network or the grain pile pipe network inserted into the grain pile.

[0007] In a preferred embodiment, a butterfly valve is installed on the return air duct, and the return air duct sleeve is installed on the return air duct between the butterfly valve and the return air inlet of the air conditioner.

[0008] In a preferred embodiment, the end side of the aforementioned hose is provided with a plurality of branch pipes.

[0009] In a preferred embodiment, the top and bottom of the above-mentioned ventilation opening two have an upper opening two and a lower opening two, respectively, and the top of the ventilation opening two is also hinged with a ventilation opening cover two that closes the upper opening two.

[0010] In a preferred embodiment, the through hole is formed in the middle of the vent cover plate, and the outer diameter of the hose is smaller than the inner diameter of the lower opening.

[0011] As can be seen from the above structural description of this utility model, compared with the prior art, this utility model has the following advantages: 1. This utility model modifies the ventilation openings and air return ducts of a shallow circular silo. A through hole is made in the ventilation opening cover plate one, and an upper cover plate sleeve and a lower cover plate sleeve are installed on the upper and lower ends of the through hole, respectively. A return duct sleeve is also connected to the through hole. In use, the ventilation opening cover plate one is opened, a flexible hose is installed at the lower cover plate sleeve and extended to the grain surface, connecting to the corresponding pipe network around the silo wall or grain pile. Then, the ventilation opening cover plate one is closed, and the upper cover plate sleeve is connected to the return duct sleeve via a connecting pipe. Simultaneously, the cover plate on the second ventilation opening is closed. The air conditioner is started, and the built-in fan draws air from the flexible hose and the lower opening one. Therefore, this utility model can achieve dual temperature control of the grain / grain pile interior and surface around the silo wall without installing a fan, saving equipment operating costs and ensuring equipment safety.

[0012] 2. This utility model also has a butterfly valve installed on the return air duct. By adjusting the butterfly valve, the gas flow rate of the hose drawing gas from the silo wall pipe network or grain pile pipe network can be controlled. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the ventilation vent cover of this utility model in an open state. Detailed Implementation

[0015] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Many details are described below to provide a comprehensive understanding of this utility model; however, those skilled in the art can implement this utility model without these details. Well-known components, methods, and processes will not be described in detail below.

[0016] This embodiment provides a shallow circular silo dual temperature control and ventilation device, referencing... Figure 1 It includes an air conditioner 10, a return air duct 20, an air outlet duct 30, a butterfly valve 40, a flexible hose 50, and a connecting pipe 60. The top of the shallow circular silo is equipped with a ventilation opening 1 and a ventilation opening 2. The return air vent of the air conditioner 10 is connected to the ventilation opening 1 through the return air duct 20, and the air outlet of the air conditioner 10 is connected to the ventilation opening 2 through the air outlet duct 30.

[0017] Reference Figure 1 Both vent 1 and vent 2 are cylindrical bodies that extend through both ends, so that vent 1 has an upper opening 1 and a lower opening 1 at its top and bottom, respectively, and vent 2 has an upper opening 2 and a lower opening 2 at its top and bottom, respectively. A vent cover plate 11 that can close the upper opening 1 is hinged to the top of vent 1, and a vent cover plate 21 that can close the upper opening 2 is also hinged to the top of vent 2.

[0018] Reference Figure 1 and Figure 2 ,in Figure 2 The connecting pipe is omitted. A through hole is opened in the middle of the above-mentioned vent cover plate 11. The upper end face and lower end face of the through hole are respectively installed with upper cover plate sleeve 111 and lower cover plate sleeve 112. A return air duct sleeve 201 is also connected to the return air duct 20. The upper cover plate sleeve 111 and the return air duct sleeve 201 are connected by a connecting pipe 60.

[0019] Reference Figure 1 and Figure 2 A flexible hose 50 is connected to the bottom of the lower cover plate sleeve 112, and the lower end of the flexible hose 50 extends out from the lower opening. The end of the flexible hose 50 is provided with several branch pipes 51, which are respectively connected to the pipe network around the silo wall or the pipe network of the grain pile inserted into the grain pile.

[0020] Reference Figure 1 and Figure 2A butterfly valve 22 is installed on the aforementioned return air duct 20, and the aforementioned return air duct sleeve 201 is installed on the return air duct 20 between the butterfly valve 22 and the return air inlet of the air conditioner. By adjusting the butterfly valve 22, the flow rate of the gas drawn by the hose 50 can be controlled.

[0021] Reference Figure 1 and Figure 2 The outer diameter of the aforementioned hose 50 is smaller than the inner diameter of the lower opening 1, so as to ensure that the gas on the surface of the shallow circular grain bin can be drawn into the ventilation opening 1 by the air conditioner's blower through the gap between the lower opening 1 and the hose 50, and enter the air conditioner's compressor along the return air duct 20 for heat exchange.

[0022] In use, open the vent cover 11, install the flexible hose 50 at the lower cover sleeve 112 and extend it to the grain surface, connecting it to the corresponding ring wall pipe network or grain pile pipe network. Then close the vent cover 11, and connect the upper cover sleeve 112 to the return air pipe sleeve 201 via the connecting pipe 60. At the same time, close the vent cover 21 on the vent 2. Start the air conditioner, using the built-in blower to draw gas from the flexible hose 50 and the lower opening 1. Simultaneously adjust the opening of the butterfly valve 22 to ensure the gas flow rate in the ring wall pipe network or grain pile pipe network reaches the set value. When the air conditioner stops, the ring wall pipe network system or grain pile pipe network system stops operating, achieving dual temperature control of the grain / grain pile interior and grain surface around the silo wall.

[0023] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A shallow circular compartment dual temperature control and ventilation device, comprising an air conditioner, a return air duct, and an outlet air duct, wherein the return air inlet of the air conditioner is connected to a first ventilation opening of the shallow circular compartment via the return air duct, and the outlet air outlet of the air conditioner is connected to a second ventilation opening of the shallow circular compartment via the outlet air duct, wherein the first ventilation opening has an upper opening and a lower opening at its top and bottom respectively, and a ventilation opening cover plate is hinged to the top of the first ventilation opening to close the upper opening, characterized in that: The ventilation vent cover has a through hole, and an upper cover sleeve and a lower cover sleeve are respectively installed on the upper and lower ends of the through hole. The return air pipe is also connected to a return air pipe sleeve. The upper cover sleeve and the return air pipe sleeve are connected by a connecting pipe. A flexible hose is connected to the bottom of the lower cover sleeve. The lower end of the flexible hose extends out from the lower opening and the end of the flexible hose is connected to the ring wall pipe network or the grain pile pipe network inserted into the grain pile.

2. The shallow circular silo dual temperature control and ventilation device as described in claim 1, characterized in that: A butterfly valve is installed on the return air duct, and the return air duct sleeve is installed on the return air duct between the butterfly valve and the return air inlet of the air conditioner.

3. The shallow circular silo dual temperature control and ventilation device as described in claim 1, characterized in that: The end side of the hose has several branch pipes.

4. The shallow circular silo dual temperature control and ventilation device as described in claim 1, characterized in that: The top and bottom of the second ventilation opening have an upper opening and a lower opening, respectively. The top of the second ventilation opening is also hinged with a second ventilation opening cover to close the upper opening.

5. The shallow circular silo dual temperature control and ventilation device as described in claim 1, characterized in that: The through hole is located in the middle of the vent cover plate, and the outer diameter of the hose is smaller than the inner diameter of the lower opening.

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