Grain depot controlled atmosphere exhaust recycling device

Abstract

The utility model discloses a grain depot controlled atmosphere exhaust recycling device, which belongs to the technical field of grain storage management controlled atmosphere and particularly comprises a connecting pipe, and detachable connector devices are mounted at two ends of the connecting pipe through pipeline hoops. The connector device is mainly composed of a fixing ring and a butt joint ring, the fixing ring and the butt joint ring are in butt joint end to end, and the fixing ring and the butt joint ring are in running fit. The utility model mainly comprises a connecting pipe and joint devices which are arranged at the two ends of the connecting pipe and are used for being connected with an air charging interface and an air discharging interface of an air charging device and an air discharging device of a granary, and when the air-conditioning operation is carried out on the granary, the device is used for connecting the air discharging interface of the granary which is being subjected to air-conditioning with the air charging interface of the granary to be subjected to air-conditioning. According to the air conditioning granary, the air which is synchronously exhausted from the air conditioning granary can be input into the next granary through the connecting pipe, so that newly injected air exhausted along with waste gas can enter the next granary to be recycled and reused, and waste caused by the fact that the newly injected air is directly exhausted into the air is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of controlled atmosphere technology for grain storage management, and specifically relates to a controlled atmosphere exhaust recovery and reuse device for grain depots. Background Technology

[0002] As a national strategic reserve resource, grain storage is of paramount importance. Currently, grain reserve warehouses built across the country all adopt new green grain storage technologies such as nitrogen or carbon dioxide storage. During static storage, controlled atmosphere technology using nitrogen or carbon dioxide is frequently employed to prevent and control pests. Currently, in the process of implementing controlled atmosphere in grain reserve warehouses, gas is typically injected at one end of the warehouse while gas is extracted at the other end to achieve a pressure balance. Because controlled atmosphere operations require that the nitrogen or carbon dioxide concentration in each area of ​​the sealed warehouse reach the target value, the gas replenishment time is relatively long until the concentration inside the warehouse is balanced. During this period, the extraction work at the other end of the warehouse continues, often carrying away newly injected gas along with it. Moreover, currently, controlled atmosphere operations in grain reserve warehouses are carried out separately for each warehouse, and the extracted gas is directly discharged into the air, resulting in a huge waste of resources.

[0003] To address this, we propose a grain depot controlled atmosphere exhaust gas recovery and reuse device that can reduce resource consumption during controlled atmosphere operations in grain storage warehouses. Utility Model Content

[0004] The purpose of this invention is to provide a grain depot controlled atmosphere exhaust gas recovery and reuse device to solve the above-mentioned problems existing in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A grain depot controlled atmosphere exhaust gas recovery and reuse device includes a connecting pipe, with detachable connectors installed at both ends of the connecting pipe via pipe clamps; the connectors mainly consist of a fixed ring and a docking ring, which are connected end-to-end and rotate in a rotatable manner; the docking ring includes an installation ring, the front end of which is integrally formed with a quick-connect interface, and an operating handle is also installed on the outside of the installation ring.

[0007] Furthermore, a sealing ring is provided inside the quick-release interface at the front end of the mounting ring; a gas concentration detection sensor is also installed in the middle of the mounting ring; the signal output terminal of the gas concentration detection sensor is electrically connected to a digital display device installed on the surface of the mounting ring.

[0008] Furthermore, the fixing ring includes a docking end and a pipe fixing end, which are integrally formed. The docking end is inserted into the inner side of the tail end of the mounting ring, and the outer side of the docking end and the corresponding position of the inner wall of the tail end of the mounting ring are integrally formed around the circumference with steel ball grooves, and a number of rolling balls are arranged in the steel ball grooves.

[0009] Furthermore, the mounting ring is provided with an inspection hole for installing balls into the ball groove, and a sealing component with an end face adapted to the inner surface of the ball groove is detachably installed in the inspection hole.

[0010] Furthermore, the front end of the docking end is integrally formed with an axial positioning ring coaxial with the fixing ring, and the inner wall of the mounting ring is integrally formed with an axial positioning adapter groove for fitting with the axial positioning ring at the position corresponding to the axial positioning ring.

[0011] Furthermore, the tail end of the mounting ring is integrally formed with a sealing groove, and a leak-proof sealing component is installed in the sealing groove. The leak-proof sealing component consists of a positioning ring, a sealing rubber ring, and a sealing ring. The sealing rubber ring is fixed inside the positioning ring, and the sealing ring is installed at the tail end of the mounting ring by bolts to seal the sealing groove. The side of the positioning ring away from the sealing rubber ring is engaged with the sealing ring.

[0012] Furthermore, the sealing ring is either a Y-shaped or a V-shaped ring, and the opening of the sealing ring faces the mounting ring.

[0013] Furthermore, a protective ring is bolted to the surface of the fixing ring near the sealing ring. The protective ring has a "П" shaped cross-section, and the edge of the protective ring near the sealing ring is folded towards the docking ring to form a collar that fits over the outer side of the tail end of the mounting ring. A rubber ring is provided in the annular groove in the middle of the protective ring.

[0014] Beneficial effects:

[0015] This utility model mainly consists of a connecting pipe and a connector device installed at both ends of the connecting pipe to connect with the filling and exhaust ports of the grain silo filling and exhaust device. When performing controlled atmosphere operation in a grain depot, this device is used to connect the exhaust port of the grain silo currently undergoing controlled atmosphere operation with the filling port of the grain silo to be controlled atmosphere operation. The gas that is synchronously discharged from the grain silo currently undergoing controlled atmosphere operation can be input into the next grain depot through the connecting pipe, so that the newly injected gas that is discharged along with the exhaust gas can enter the next grain depot for recycling and reuse, avoiding direct discharge into the air and causing waste.

[0016] Meanwhile, the connecting pipe and the connector device adopt a detachable design, which makes later maintenance simple and convenient. Moreover, the connector device is divided into two parts: a fixing ring and a docking ring. While achieving 360-degree rotation, the two parts achieve a sealing effect through structural design and cooperation, making it more convenient to connect and assemble the air injection interface and air exhaust interface of the charging and decompression device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of a half-section of the present invention;

[0019] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0020] Figure 4 for Figure 3 Enlarged structural diagram at point A-1;

[0021] Figure 5 This is a partial exploded cross-sectional view of the present invention.

[0022] Figure 6 This is a schematic diagram of the disassembled structure of the connector device of this utility model.

[0023] In the diagram: 1. Connecting pipe; 2. Pipe clamp; 3. Joint device; 301. Fixing ring; 311. Butt end; 312. Pipe fixing end; 313. Axial positioning ring; 314. Steel ball groove; 302. Butt ring; 321. Mounting ring; 322. Operating handle; 323. Gas concentration detection sensor; 324. Quick-connect interface; 325. Sealing ring; 326. Axial positioning adapter groove; 327. Sealing groove; 303. Ball bearing; 304. Positioning ring; 305. Sealing rubber ring; 306. Sealing ring; 307. Protective ring; 308. Rubber ring; 309. Digital display device. Detailed Implementation

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.

[0025] Example

[0026] In the current controlled atmosphere management operations for grain reserves, traditional methods of controlling atmosphere management for individual warehouses or storage silos result in the direct release of large amounts of newly injected nitrogen or carbon dioxide carried in the exhaust gas into the air during each controlled atmosphere operation. This leads to significant resource waste and increased grain storage costs. To address this, we propose a controlled atmosphere exhaust gas recovery and reuse device for grain reserves. During controlled atmosphere operations, the gas simultaneously extracted from one grain silo can be transferred to the next silo awaiting controlled atmosphere operation, preventing the direct release of exhaust gas mixed with newly injected gas into the air and thus avoiding resource waste. The specific design is as follows:

[0027] like Figure 1-2 As shown in the figure, this embodiment provides a grain depot controlled atmosphere exhaust gas recovery and reuse device, including a connecting pipe 1, with detachable connector devices 3 installed at both ends of the connecting pipe 1 through pipe clamps 2; when the grain depot is implementing controlled atmosphere operation, the exhaust port and gas filling port of two grain depots are connected by the device, so that the gas discharged synchronously in the grain depot can be input into the next grain depot through the connecting pipe 1, so that the newly injected gas discharged along with the exhaust gas can enter the next grain depot for recovery and reuse, avoiding direct discharge into the air and causing waste.

[0028] Because the distance between grain silos in a grain depot is generally 10-15 meters, the connecting pipe 1 used has a large diameter and is an explosion-proof steel wire flexible hose. Furthermore, to facilitate connection with the original air supply and exhaust connectors of the grain silo's filling and exhaust systems, such as... Figure 3-6 As shown, the connector device 3 mainly consists of two parts: a fixing ring 301 and a docking ring 302. The fixing ring 301 and the docking ring 302 are connected end to end and rotate together. The docking ring 302 includes a mounting ring 321, the front end of which is integrally formed with a quick-connect interface 324, and an operating handle 322 is also installed on the outside of the mounting ring 321. In this design, when the connector device 3 is connected to the connectors on the original filling and exhaust devices of the grain depot, it can effectively avoid the resistance caused by the connecting pipe 1 itself when turning the connector device 3, thus facilitating the docking of the connector device 3 with the interface of the filling and exhaust devices of the grain depot.

[0029] In order to improve the airtightness between the connector device 3 and the grain depot filling and exhaust device connector, a sealing ring 325 is provided inside the quick-installation interface 324 at the front end of the installation ring 321.

[0030] Furthermore, in order to more intuitively understand the concentration of nitrogen or carbon dioxide carried in the exhaust gas and thus calculate the concentration of nitrogen and carbon dioxide inside the grain depot, a gas concentration detection sensor 323 is installed in the middle of the mounting ring 321; and the signal output terminal of the gas concentration detection sensor 323 is electrically connected to the digital display device 309 installed on the surface of the mounting ring 321.

[0031] like Figure 3-6 As shown, in order to enable the fixed ring 301 to rotate effectively with the docking ring 302, the fixed ring 301 includes a docking end 311 and a pipe fixing end 312. The docking end 311 and the pipe fixing end 312 are integrally formed. The docking end 311 is inserted into the inner side of the tail end of the mounting ring 321. The outer side of the docking end 311 and the corresponding position of the inner wall of the tail end of the mounting ring 321 are integrally formed around the circumference of a steel ball groove 314, and a number of rolling balls 303 are arranged in the steel ball groove 314.

[0032] Meanwhile, an inspection hole is provided on the mounting ring 321 for installing the ball 303 into the ball groove 314. A sealing component with an end face that matches the inner surface of the ball groove 314 is detachably installed in the inspection hole. When the sealing component seals the inspection hole, its bottom end matches the surface of the ball groove 314, so that the bottom end of the sealing component can fill the gap caused by the inspection hole in the ball groove 314, so that the surface of the ball groove 314 is restored to flatness, which facilitates the normal rolling of the ball 303. Moreover, the design of the inspection hole also facilitates the maintenance and replacement of the ball 303 in the future.

[0033] To improve the stability of the assembly between the fixed ring 301 and the docking ring 302, an axial positioning ring 313 coaxial with the fixed ring 301 is integrally formed at the front end of the docking end 311, and an axial positioning adapter groove 326 for matching the axial positioning ring 313 is integrally formed on the inner wall of the mounting ring 321 at the position corresponding to the axial positioning ring 313.

[0034] To achieve a sealing effect on the joint between the fixing ring 301 and the docking ring 302 without affecting the rotational assembly effect between the docking ring 302 and the fixing ring 301, a sealing groove 327 is integrally formed at the tail end of the mounting ring 321. A leak-proof sealing component is installed in the sealing groove 327. The leak-proof sealing component consists of a positioning ring 304, a sealing rubber ring 305, and a sealing ring 306. The sealing rubber ring 305 is fixed to the inner side of the positioning ring 304. The sealing ring 306 is installed at the tail end of the mounting ring 321 by bolts to seal the sealing groove 327. The side of the positioning ring 304 away from the sealing rubber ring 305 is engaged with the sealing ring 306. The sealing rubber ring 305 is either a Y-type or a V-type ring, and the opening of the sealing rubber ring 305 faces the mounting ring 321.

[0035] To minimize the risk of dust entering the sealing groove through the gap in the sealing ring 306 and affecting the airtightness of the leak-proof sealing assembly, a protective ring 307 is bolted to the surface of the fixing ring 301 near the sealing ring 306. The protective ring 307 has a "П" shaped cross-section, and the edge of the protective ring 307 near the sealing ring 306 is folded towards the mating ring 302 to form a loop that fits over the outer side of the end of the mounting ring 321. A rubber ring 308 is provided in the annular groove in the middle of the protective ring 307.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A controlled atmosphere exhaust gas recovery and reuse device for grain depots, characterized in that, Includes a connecting pipe (1), and both ends of the connecting pipe (1) are equipped with detachable joint devices (3) via pipe clamps (2); The joint device (3) is mainly composed of two parts: a fixed ring (301) and a docking ring (302). The fixed ring (301) and the docking ring (302) are connected end to end, and the fixed ring (301) and the docking ring (302) are rotatably engaged. The docking ring (302) includes a mounting ring (321), the front end of which is integrally formed with a quick-install interface (324), and an operating handle (322) is also installed on the outside of the mounting ring (321).

2. The grain depot controlled atmosphere exhaust gas recovery and reuse device according to claim 1, characterized in that, A sealing ring (325) is provided inside the quick-install interface (324) at the front end of the mounting ring (321); a gas concentration detection sensor (323) is also installed in the middle of the mounting ring (321); the signal output end of the gas concentration detection sensor (323) is electrically connected to the digital display device (309) installed on the surface of the mounting ring (321).

3. The grain depot controlled atmosphere exhaust gas recovery and reuse device according to claim 1, characterized in that, The fixing ring (301) includes a docking end (311) and a pipe fixing end (312). The docking end (311) and the pipe fixing end (312) are integrally formed. The docking end (311) is inserted into the inner side of the tail end of the mounting ring (321). The outer side of the docking end (311) and the corresponding position of the inner wall of the tail end of the mounting ring (321) are integrally formed around the circumference of the ball groove (314), and a number of balls (303) are arranged in the ball groove (314).

4. The grain depot controlled atmosphere exhaust gas recovery and reuse device according to claim 2, characterized in that, The mounting ring (321) has an inspection hole for installing balls (303) into the ball groove (314). A sealing element with an end face that matches the inner surface of the ball groove (314) is detachably installed in the inspection hole.

5. A grain depot controlled atmosphere exhaust gas recovery and reuse device according to claim 3, characterized in that, The front end of the docking end (311) is integrally formed with an axial positioning ring (313) coaxial with the fixing ring (301), and the inner wall of the mounting ring (321) is integrally formed with an axial positioning adapter groove (326) for matching the axial positioning ring (313) at the position corresponding to the axial positioning ring (313).

6. A grain depot controlled atmosphere exhaust gas recovery and reuse device according to claim 5, characterized in that, The tail end of the mounting ring (321) is also integrally formed with a sealing groove (327). A leak-proof sealing component is installed in the sealing groove (327). The leak-proof sealing component consists of a positioning ring (304), a sealing rubber ring (305), and a sealing ring (306). The sealing rubber ring (305) is fixed inside the positioning ring (304). The sealing ring (306) is installed at the tail end of the mounting ring (321) by bolts to seal the sealing groove (327). The side of the positioning ring (304) away from the sealing rubber ring (305) is engaged with the sealing ring (306).

7. A grain depot controlled atmosphere exhaust gas recovery and reuse device according to claim 6, characterized in that, The sealing ring (305) is either a Y-type or a V-type ring, and the opening of the sealing ring (305) is set towards the mounting ring (321).

8. A grain depot controlled atmosphere exhaust gas recovery and reuse device according to claim 2, characterized in that, A protective ring (307) is bolted to the surface of the fixing ring (301) near the sealing ring (306). The protective ring (307) has a "П" shaped cross-section. The edge of the protective ring (307) near the sealing ring (306) is folded towards the docking ring (302) to form a loop that fits around the outer side of the end of the mounting ring (321). A rubber ring (308) is provided in the annular groove in the middle of the protective ring (307).

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