Air inducing cover device

By using the induced draft fan of the induced draft hood device to extract the gas from the storage tank and introduce it into the exhaust gas absorption component for treatment, the problem of direct gas emission during the material feeding process of the storage tank is solved, and environmentally friendly and safe material storage is achieved.

CN224131902UActive Publication Date: 2026-04-17SHANXI JIASHENG PHARM CHEM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANXI JIASHENG PHARM CHEM CO LTD
Filing Date
2025-06-03
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

During the feeding process of the storage tank, the direct emission of gas from inside the tank leads to failure to meet environmental protection standards, pollutes the environment, and endangers the health of workers.

Method used

Design a draft hood device, including a storage tank, a feed pipe, a draft assembly, and a tail gas absorption assembly. The draft fan draws gas from the storage tank and introduces it into the tail gas absorption assembly for treatment, thus avoiding direct gas emission.

Benefits of technology

It enables effective treatment of gas inside the storage tank during the feeding process, reducing environmental pollution and health hazards to workers, and ensuring environmental protection and safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224131902U_ABST
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Abstract

The utility model relates to the technical field of air inducing covers, and discloses an air inducing cover device which comprises a material storage tank, the surface of the material storage tank is fixedly connected with a feeding pipe, the top of the material storage tank is fixedly connected with an air inducing assembly, and the output end of the air inducing assembly is fixedly provided with a tail gas absorbing assembly. The air inducing assembly comprises a connecting pipe, the top of the connecting pipe is fixedly connected with a breather valve through a bolt, and the surface of the breather valve is sleeved with an annular semi-sealing cover. The annular semi-sealing plate is arranged, the induced draft fan body is started, the induced draft fan body sucks gas which enters the breather valve through the connecting pipe and is exhausted into the adapter pipe through the annular semi-sealing cover, and then the gas enters an induced draft fan pipeline through the adapter pipe; and the output end of the induced draft fan body discharges the gas in the induced draft fan pipeline into the tail gas absorption assembly to be collected, so that the situation that in the feeding process, the gas in the storage tank is directly discharged, and the environmental protection does not reach the standard is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of air hood technology, specifically an air hood device. Background Technology

[0002] Storage tanks are containers used to store various materials. They are widely used in many fields such as industrial production, agriculture, and food processing. They are made of various materials, commonly stainless steel and carbon steel, to adapt to different material properties and operating environments. Their structure generally includes a tank body, inlet and outlet pipes, level gauges, safety valves, and other components. They can store liquid materials such as petroleum, chemical raw materials, and water, as well as solid particulate materials such as grains and ores. Through proper design and layout, storage tanks can ensure a stable supply of materials, preventing production processes from being disrupted by material shortages, and playing a vital role in maintaining the normal operation of various industries.

[0003] During the use of storage tanks, when materials need to be sealed and fed into the tank, the gas inside the tank needs to be released. When the gas is released directly through the breather valve during the feeding process, most storage tanks have an odor, fail to meet environmental protection standards, and are prone to causing environmental pollution. At the same time, workers are also prone to inhaling the exhaust gas, causing health damage. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a draft hood device, including a storage tank, a feed pipe fixedly connected to the surface of the storage tank, a draft assembly fixedly connected to the top of the storage tank, and an exhaust gas absorption assembly fixedly installed at the output end of the draft assembly.

[0005] The induced draft assembly includes a connecting pipe, a breather valve is fixedly connected to the top of the connecting pipe by bolts, an annular semi-sealed cover is fitted onto the surface of the breather valve, an adapter pipe is fixedly connected to the top of the annular semi-sealed cover, an installation sleeve is fixedly connected to the output end of the adapter pipe, an adjusting valve is installed on the surface of the installation sleeve, a flange is fixedly connected to the output end of the adapter pipe, an induced draft fan pipe is fixedly connected to the left end of the flange, and an induced draft fan body is installed at the front end of the induced draft fan pipe.

[0006] As a further improvement to the above solution, an annular semi-sealed plate is installed. When the induced draft fan is activated, the output end of the fan discharges the gas inside the induced draft fan duct into the exhaust gas absorption assembly for collection. This avoids the direct emission of gas from the storage tank during the feeding process, which would fail to meet environmental standards. The storage tank is used to store materials, and the feed pipe allows materials to be fed into the storage tank. The induced draft assembly guides the gas flow, while the exhaust gas absorption assembly treats the exhaust gas output from the induced draft assembly, thus facilitating gas management and exhaust gas treatment during material storage.

[0007] As a further improvement to the above solution, the feed pipe penetrates the inner wall of the storage tank, and the output end of the connecting pipe is located inside the storage tank.

[0008] Through the above technical solution, the feed pipe penetrates the inner wall of the storage tank, ensuring that the material enters the tank smoothly. The output end of the connecting pipe is located inside the storage tank, allowing the induced draft assembly to effectively act on the gas environment inside the tank. A regulating valve is installed in the pipeline to adjust the induced draft volume, maintaining a slight negative pressure in the induced draft hood. The odor from the gas discharged from the breather valve during material feeding is directed to the exhaust gas absorption system for treatment, without affecting the air intake during material discharge.

[0009] As a further improvement to the above solution, the annular semi-sealed cover is spaced 5 mm apart from the surface of the breathing valve.

[0010] With the above technical solution, the annular semi-sealed cover is 5mm away from the surface of the breathing valve. This distance can ensure the normal operation of the breathing valve and also enable the annular semi-sealed cover to play a certain sealing auxiliary role, ensuring that the gas flows in the air intake assembly in a predetermined manner and avoiding unnecessary gas leakage or interference.

[0011] As a further improvement to the above scheme, the input end of the induced draft fan body is located inside the induced draft fan duct.

[0012] With the above technical solution, the input end of the induced draft fan body is located inside the induced draft fan pipeline, which can ensure that the induced draft fan can normally draw in the gas in the induced draft fan pipeline, ensure the effective realization of the induced draft function, and make the gas be drawn by the induced draft fan according to the set path.

[0013] As a further improvement to the above scheme, the output end of the induced draft fan body is located inside the exhaust gas absorption assembly.

[0014] With the above technical solution, the output end of the induced draft fan body is located inside the exhaust gas absorption component, so that the gas extracted by the induced draft fan can directly enter the exhaust gas absorption component for treatment, ensuring that the exhaust gas is effectively absorbed and treated, and reducing adverse effects such as pollution to the environment.

[0015] As a further improvement to the above solution, a fixed platform is fixedly connected to the bottom of the storage tank, and a connecting plate is fixedly connected to the surface of the fixed platform.

[0016] The above technical solution involves a fixed platform at the bottom of the storage tank, providing a stable support structure. The connecting plate on the surface of the fixed platform further enhances the stability of the structure, ensuring the stability of the entire device during operation.

[0017] As a further improvement to the above solution, two fixed platforms are provided, which are symmetrically and evenly distributed on the surface with respect to the center of the bottom of the storage tank, and the connecting plate is located at one end of the two fixed platforms that are close to each other.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This invention, by setting up an annular semi-sealed plate, starts the induced draft fan body. The induced draft fan body draws the gas discharged from the breather valve through the connecting pipe into the interior of the transfer pipe through the annular semi-sealed cover, and then into the interior of the induced draft fan pipeline through the transfer pipe. The output end of the induced draft fan body discharges the gas inside the induced draft fan pipeline into the interior of the exhaust gas absorption component for collection, thus avoiding the direct emission of gas from the storage tank during the feeding process, which would fail to meet environmental protection standards. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall connection structure of the storage tank of this utility model;

[0022] Figure 3 This is a schematic diagram of the overall connection structure of the annular semi-sealed cover of this utility model;

[0023] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A.

[0024] In the diagram: 1. Storage tank; 2. Feed pipe; 3. Exhaust fan assembly; 31. Connecting pipe; 32. Breathing valve; 33. Annular semi-sealed cover; 34. Transfer pipe; 35. Mounting sleeve; 36. Regulating valve; 37. Flange; 38. Exhaust fan duct; 39. Exhaust fan body; 4. Exhaust gas absorption assembly; 5. Fixing platform; 6. Connecting plate. Detailed Implementation

[0025] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] Example:

[0027] Please combine Figure 1-4 The wind hood device of this embodiment includes a storage tank 1, a feed pipe 2 fixedly connected to the surface of the storage tank 1, a wind duct assembly 3 fixedly connected to the top of the storage tank 1, and a tail gas absorption assembly 4 fixedly installed at the output end of the wind duct assembly 3.

[0028] The induced draft assembly 3 includes a connecting pipe 31. A breather valve 32 is fixedly connected to the top of the connecting pipe 31 by bolts. An annular semi-sealed cover 33 is fitted onto the surface of the breather valve 32. An adapter pipe 34 is fixedly connected to the top of the annular semi-sealed cover 33. An installation sleeve 35 is fixedly connected to the output end of the adapter pipe 34. A regulating valve 36 is installed on the surface of the installation sleeve 35. A flange 37 is fixedly connected to the output end of the adapter pipe 34. An induced draft fan pipe 38 is fixedly connected to the left end of the flange 37. An induced draft fan body 39 is installed at the front end of the induced draft fan pipe 38.

[0029] In use, the material is fed into the storage tank 1 through the feed pipe 2, and the internal space of the storage tank 1 is reduced. The gas inside is discharged through the connecting pipe 31. The blower body 39 is started. The blower body 39 draws the gas from the connecting pipe 31 into the breather valve 32 and into the transfer pipe 34 through the annular semi-sealed cover 33. The output end of the blower body 39 discharges the gas inside the blower pipe 38 into the exhaust gas absorption assembly 4 for collection.

[0030] The feed pipe 2 penetrates the inner wall of the storage tank 1, and the output end of the connecting pipe 31 is located inside the storage tank 1. The regulating valve 36 penetrates the inner wall of the mounting sleeve 35. The feed pipe 2 penetrating the inner wall of the storage tank 1 ensures that the material enters the storage tank 1 smoothly. The output end of the connecting pipe 31 being located inside the storage tank 1 allows the induced draft assembly 4 to effectively act on the gas environment inside the storage tank 1. The regulating valve 36 installed in the pipeline regulates the induced draft volume, keeping the induced draft hood 33 at a slight negative pressure. When the storage tank 1 is fed, the odor from the gas discharged from the breather valve 32 is directed to the exhaust gas absorption system for treatment, without affecting the air intake when the storage tank 1 is discharged.

[0031] The annular semi-sealed cover 33 is 5 mm away from the surface of the breather valve 32.

[0032] The input end of the induced draft fan body 39 is located inside the induced draft fan duct 38.

[0033] The output end of the induced draft fan body 39 is located inside the exhaust gas absorption assembly 4.

[0034] A fixed platform 5 is fixedly connected to the bottom of the storage tank 1, and a connecting plate 6 is fixedly connected to the surface of the fixed platform 5.

[0035] There are two fixed platforms 5, which are symmetrically and evenly distributed on the surface of the storage tank 1 with the bottom center of the two fixed platforms 5 close to each other.

[0036] The implementation principle of the draft fan device in this embodiment is as follows: when storing material in the storage tank 1, the material is fed into the storage tank 1 through the feed pipe 2, and the internal space of the storage tank 1 is reduced. The gas inside is discharged through the connecting pipe 31. The draft fan body 39 is started. The draft fan body 39 draws the gas discharged from the connecting pipe 31 into the breather valve 32 through the annular semi-sealed cover 33 and into the interior of the transfer pipe 34. Then, it enters the interior of the draft fan pipe 38 through the transfer pipe 34. The output end of the draft fan body 39 discharges the gas inside the draft fan pipe 38 into the interior of the exhaust gas absorption assembly 4 for collection.

[0037] The storage tank 1 is lifted up completely by the bottom of the fixed platform 5, which is in contact with the ground, thus avoiding direct contact with the ground.

[0038] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A wind scoop arrangement, characterized by: Includes a storage tank (1), a feed pipe (2) is fixedly connected to the surface of the storage tank (1), an air intake assembly (3) is fixedly connected to the top of the storage tank (1), and an exhaust gas absorption assembly (4) is fixedly installed at the output end of the air intake assembly (3). The induced draft assembly (3) includes a connecting pipe (31), the top of which is fixedly connected to a breather valve (32) by bolts. The surface of the breather valve (32) is fitted with an annular semi-sealed cover (33). The top of the annular semi-sealed cover (33) is fixedly connected to a transfer pipe (34). The output end of the transfer pipe (34) is fixedly connected to an installation sleeve (35). The surface of the installation sleeve (35) is fitted with a regulating valve (36). The output end of the transfer pipe (34) is fixedly connected to a flange (37). The left end of the flange (37) is fixedly connected to an induced draft fan pipe (38). The front end of the induced draft fan pipe (38) is fitted with an induced draft fan body (39).

2. A wind scoop device according to claim 1, wherein: The feed pipe (2) penetrates the inner wall of the storage tank (1), the output end of the connecting pipe (31) is located inside the storage tank (1), and the regulating valve (36) penetrates the inner wall of the mounting sleeve (35).

3. A wind scoop device according to claim 1, wherein: The annular semi-sealed cover (33) is 5 mm away from the surface of the breathing valve (32).

4. A wind scoop device according to claim 1, wherein: The input end of the induced draft fan body (39) is located inside the induced draft fan duct (38).

5. A wind scoop device according to claim 1, wherein: The output end of the induced draft fan body (39) is located inside the exhaust gas absorption assembly (4).

6. A wind scoop device according to claim 1, wherein: The bottom of the storage tank (1) is fixedly connected to a fixed platform (5), and the surface of the fixed platform (5) is fixedly connected to a connecting plate (6).

7. A wind scoop device according to claim 6, wherein: The number of fixed platforms (5) is set to two. The two fixed platforms (5) are evenly distributed on the surface with the bottom center of the storage tank (1) symmetrical. The connecting plate (6) is located at the end of the two fixed platforms (5) that are close to each other.