Automatic adjusting system for pressure intensity in granary
By setting up air bags and ventilation ducts in the granary, the air pressure inside and outside the granary is automatically adjusted, which solves the problems of nitrogen leakage and air entry caused by air pressure difference, ensuring the effectiveness of gas-regulating and storing grains.
Patent Information
- Application Number
- CN202421686269.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-16
AI Technical Summary
The air pressure difference inside and outside the granary warehouse leads to nitrogen leakage or air entering outside the warehouse, affecting the insecticide and the effect of inhibiting grain respiration and grain respiration.
Design a pressure automatic regulation system in the granary warehouse, including airbag, membrane tube and ventilation duct. The airbag is connected to the atmosphere outside the granary warehouse through ventilation ducts. As the pressure difference changes, the airbag automatically expands or contracts to balance the air pressure inside and outside the granary.
It effectively avoids nitrogen leakage and air in the outside warehouse caused by air pressure difference, maintains the pressure balance in the granary, and ensures the effect of air conditioning and storage of grains and inhibits grain respiration.
Smart Images
Figure CN222786457U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of grain storage, in particular to an automatic pressure regulating system in a grain silo. Background Art
[0002] At present, controlled atmosphere grain storage has been widely used in grain storage. This technology often uses high-concentration nitrogen to fill the granary to reduce the oxygen concentration in the granary, suffocate the pests in the granary, and inhibit the respiration of grain. It has the advantages of safety and pollution-free. During the closed atmosphere storage in the granary, since the temperature in the granary is controlled by air conditioning, the ambient temperature outside the granary is changing. Once the temperature difference between the inside and outside of the granary is formed, it is very easy to cause the pressure difference inside and outside the granary. In severe cases, it will cause the nitrogen in the granary to leak out or the air outside the granary to enter the granary through the small gaps in the warehouse, resulting in a decrease in the nitrogen concentration in the granary, affecting the insecticidal and grain respiration inhibition effects of controlled atmosphere grain storage. Utility Model Content
[0003] The utility model aims to provide a system for automatically adjusting the pressure inside a granary, which has the effect of automatically adjusting the pressure inside the granary.
[0004] The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: a system for automatically regulating the pressure inside a granary, comprising an air bag, a film tube, and a ventilation pipe, wherein one end of the film tube is connected to the interior of the air bag, and the other end is sealed and connected to the outer edge of the granary vent; one end of the ventilation pipe is connected to the atmosphere outside the granary, and the other end is connected to the interior of the air bag after passing through the film tube; the end of the ventilation pipe located outside the granary is installed and fixed on the granary, and the film tube is fixed to the outer wall of the ventilation pipe.
[0005] By adopting the above technical solution, the airbag is placed on the grain pile in the granary, and the inside of the airbag is connected to the atmosphere outside the granary through a ventilation pipe. As the pressure difference between the inside and outside of the granary changes, the airbag automatically expands or contracts to balance the air pressure inside and outside the granary, which can effectively prevent nitrogen leakage caused by the pressure difference between the inside and outside of the granary or the outside atmosphere from entering the granary through the small gaps in the granary, and automatically adjust the pressure inside the granary and balance the air pressure inside and outside the granary.
[0006] The ventilation pipe has at least two functions. One is to connect the inside of the airbag with the atmosphere outside the granary. The other is to bear weight. The film tube has a certain weight. If the film tube is not fixed on the outer wall of the ventilation pipe, the film tube's own weight will pull down the film tube, causing the seal between the film tube and the granary vent to be subjected to force, affecting the long-term effectiveness of the seal. In addition, when the airbag contracts, it may also pull down the film tube and cause force on the seal. Therefore, the end of the ventilation pipe located outside the granary is installed and fixed on the outer wall of the granary. The film tube is put on and fixed on the ventilation pipe. The ventilation pipe plays a load-bearing role for the film tube, avoiding force on the seal between the film tube and the granary vent.
[0007] The utility model is further configured as follows: the ventilation pipe is vertically configured, and the film tube is vertically configured.
[0008] The utility model is further configured as follows: the ventilation pipe is a corrugated ventilation pipe.
[0009] By adopting the above technical solution, the ventilation pipe uses a corrugated ventilation pipe, so that the film tube can be better fixed on the outer wall of the ventilation pipe.
[0010] The utility model is further configured as follows: the film tube and the airbag are integrally formed.
[0011] By adopting the above technical solution, the sealing performance between the film tube and the airbag is good.
[0012] The utility model is further configured as follows: the film tube is sealedly connected to the airbag.
[0013] By adopting the above technical solution, the film tube and the airbag can also be designed to be separate, and the two are sealed and connected.
[0014] The utility model is further configured as follows: the film tube and the airbag are connected by hot melting.
[0015] The utility model is further configured as follows: the film tube is fixed to the outer wall of the ventilation tube through a tie or a rope.
[0016] By adopting the above technical solution, the film tube can be fixed to the outer wall of the ventilation pipe by a cable tie or a rope, or by other means.
[0017] The utility model is further configured as follows: the airbag is located on the grain pile in the granary.
[0018] The beneficial effect of the utility model is that the airbag is placed on the grain pile in the granary, and the inside of the airbag is connected to the atmosphere outside the granary through the ventilation pipe. As the pressure difference between the inside and outside of the granary changes, the airbag automatically expands or contracts to balance the air pressure inside and outside the granary, which can effectively prevent nitrogen leakage caused by the pressure difference between the inside and outside of the granary or the outside atmosphere from entering the granary through the small gaps in the granary, and automatically adjust the pressure inside the granary and balance the air pressure inside and outside the granary. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0020] Figure 1 It is a structural schematic diagram of Example 1.
[0021] In the figure, 1. air bag; 2. film tube; 3. ventilation pipe; 4. granary; 5. grain pile; 6. ventilation hole. DETAILED DESCRIPTION
[0022] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] Embodiment 1: A system for automatically adjusting the pressure inside a granary, such as Figure 1 As shown, it includes an airbag 1, a film tube 2, and a ventilation pipe 3. The airbag 1 is placed on the grain pile 5 in the granary 4. The airbag 1 and the film tube 2 are integrally formed. The film tube 2 and the ventilation pipe 3 are both arranged vertically. The upper end of the film tube 2 is sealed and connected to the outer edge of the vent 6 on the top of the granary 4, and the lower end is connected to the airbag 1. The upper end of the ventilation pipe 3 extends from the vent 6 on the top of the granary 4 and is located outside the granary 4. The upper end is installed and fixed on the outer wall of the granary 4, and the lower end droops naturally. After passing through the inside of the film tube 2, the lower end is located inside the airbag 1. The ventilation pipe 3 connects the inside of the airbag 1 with the atmosphere outside the granary 4. The ventilation pipe 3 uses a corrugated ventilation pipe 3, and the film tube 2 is fixed to the outer wall of the ventilation pipe 3 by a cable tie.
[0024] Working principle: The inside of the airbag 1 is connected to the atmosphere outside the granary 4 through the ventilation pipe 3. As the pressure difference between the inside and outside of the granary 4 changes, the airbag 1 automatically expands or contracts to balance the pressure inside and outside the granary 4. It can effectively prevent nitrogen leakage caused by the pressure difference between the inside and outside of the granary 4 or the outside atmosphere from entering the granary through the small gaps in the granary 4, and automatically adjust the pressure inside the granary 4 and balance the pressure inside and outside the granary 4.
[0025] Embodiment 2: An automatic pressure regulating system in a granary 4, which is different from Embodiment 1 in that the film tube 2 and the air bag 1 are not integrally formed, and the two are sealed by hot-melt connection. The film tube 2 is fastened and fixed to the ventilation pipe 3 by a rope.
Claims
1. An automatic pressure adjustment system for a granary, characterized in that: It comprises an air bag (1), a film tube (2), and a ventilation pipe (3); one end of the film tube (2) is connected to the interior of the air bag (1), and the other end is sealed to the outer edge of the ventilation opening (6) of the granary (4); one end of the ventilation pipe (3) is connected to the atmosphere outside the granary (4), and the other end is connected to the interior of the air bag (1) after passing through the film tube (2); the end of the ventilation pipe (3) located outside the granary (4) is installed and fixed on the granary (4), and the film tube (2) is fixed to the outer wall of the ventilation pipe (3).
2. The automatic pressure regulating system in a granary according to claim 1 is characterized in that: The ventilation pipe (3) is arranged vertically, and the film tube (2) is arranged vertically.
3. The automatic pressure regulating system in a granary according to claim 1 is characterized in that: The ventilation pipe (3) is a corrugated ventilation pipe (3).
4. The automatic pressure regulating system in a granary according to claim 1 is characterized in that: The film tube (2) and the airbag (1) are integrally formed.
5. The automatic pressure regulating system in a granary according to claim 1 is characterized in that: The film tube (2) is sealedly connected to the airbag (1).
6. The automatic pressure regulating system in a granary according to claim 5 is characterized in that: The film tube (2) and the airbag (1) are connected by hot melting.
7. The automatic pressure regulating system in a granary according to claim 1 is characterized in that: The film tube (2) is fixed to the outer wall of the ventilation pipe (3) by means of a tie or a rope.
8. The automatic pressure regulating system in a granary according to claim 1 is characterized in that: The air bag (1) is located on a grain pile (5) in a grain bin (4).