An exhaust system arrangement

By employing a cylinder-based isolation structure and a dual-control structure, the risks of flammable gas ignition and the complexity of control in exhaust systems are resolved, achieving both safety and reliability and flexibility in airflow adjustment.

CN224567542UActive Publication Date: 2026-07-28ZHUHAI HUAXIN PURIFICATION EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHUHAI HUAXIN PURIFICATION EQUIP CO LTD
Filing Date
2025-09-11
Publication Date
2026-07-28

AI Technical Summary

Technical Problem

Existing exhaust systems have a high risk of ignition from flammable gases in their motor components, and their intake control structure is complex, making it difficult to effectively isolate and seal off the system in emergency situations.

Method used

The exhaust fan blades are isolated from the drive motor by a cylindrical seat isolation structure. Combined with a dual control structure, the air volume of the main air duct and the branch pipe side are adjusted by valve plates and rotary drum drive motor respectively. The air volume adjustment adopts a slotted staggered type.

Benefits of technology

It improves the operational safety of the exhaust system and the reliability and accuracy of airflow adjustment, simplifies the control structure, and enhances operational flexibility.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to exhaust device technical field and disclose an exhaust system device, is provided with the isolation cylinder seat in the transmission installation side of exhaust fan blade and exhaust drive motor, can form the closed cylinder cavity structure in the transmission side of exhaust fan blade and exhaust drive motor after installation, realizes the isolation installation of exhaust fan blade transmission part and the inner chamber of air pipe, avoids the ignition risk when flammable gas is sent, adopts the exhaust control structure of double type, realizes the control adjustment to the total exhaust capacity of air pipe in the main air duct through the regulating valve piece driven by the valve piece drive motor, realizes the control adjustment to the exhaust capacity of exhaust branch pipe side through the regulating rotary cylinder driven by the rotary cylinder drive motor in the branch pipe side, and double cooperation can effectively improve the work reliability and accuracy of device air volume adjustment, and the regulating rotary cylinder adopts the air volume adjustment structure of notched staggered type, and the flexible adjustment and on-off control of branch pipe section air volume can be realized by the rotary cylinder drive motor drive, can effectively improve the work control flexibility of device.
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Description

Technical Field

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

[0002] A cleanroom is a room where local air filtration, distribution, optimization, and construction materials and equipment are used. Specific operating procedures are followed to control the concentration of airborne particles to achieve an appropriate level of cleanliness. In order to ensure ventilation within the cleanroom and to exhaust waste gases generated from production, work, and daily life, dedicated ventilation and exhaust systems must be installed.

[0003] In order to drive the exhaust fan blades, an electric motor is required in the exhaust system. The motor of the existing exhaust device is mostly located inside the exhaust pipe. Since the motor is an electrically driven component, there is a risk of ignition of the flammable gas flowing in the exhaust pipe during the exhaust process. In addition, the existing exhaust device controls the air intake of the branch exhaust pipe by using a fan and air intake plate set on the air intake side of the duct. This is not only complex in structure, but also difficult to effectively isolate and seal the duct in emergency situations. Therefore, an exhaust system device is proposed. Utility Model Content

[0004] The purpose of this invention is to provide an exhaust system device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an exhaust system device, comprising an exhaust mechanism and an air guiding mechanism, wherein the exhaust mechanism comprises a fan support, exhaust fan blades, an exhaust drive motor, a valve plate drive motor, an adjusting valve plate, and an isolation cylinder seat; the exhaust fan blades are driven and installed inside the fan support by the exhaust drive motor; the isolation cylinder seat is installed on the transmission side between the exhaust fan blades and the exhaust drive motor; and the adjusting valve plate is movably installed on the connecting side of the rear air duct of the fan support by the valve plate drive motor.

[0006] The air guiding mechanism includes a diverter base, an exhaust branch pipe, a rotary drum drive motor, and an adjusting rotary drum. The diverter base is connected and installed at the rear of the fan support. Multiple sets of exhaust branch pipes are provided. The exhaust branch pipes are connected and installed in conjunction with the diverter base. The adjusting rotary drum is driven to rotate and installed inside the diverter base by the rotary drum drive motor. A ventilation groove is provided on the periphery of the adjusting rotary drum.

[0007] Preferably, the isolation cylinder seat is L-shaped and is fixedly installed inside the fan support by a support. A fan blade mounting seat is provided on the rear end pipe side of the isolation cylinder seat. The exhaust fan blade is rotatably installed on the rear of the fan blade mounting seat by a rotating shaft. The upper end pipe side of the isolation cylinder seat is aligned and connected with the circular slot provided on the upper part of the fan support.

[0008] Preferably, the exhaust drive motor is fixedly mounted on the upper part of the fan support by a support bracket. Both the exhaust drive motor and the shaft end of the exhaust fan blade are fixedly mounted with drive pulleys. A drive belt is mounted on the upper part of the two sets of drive pulleys. The drive belt is located on the inner cavity side of the isolation cylinder seat.

[0009] Preferably, the aforementioned regulating valve plate is mounted on the connecting side of the rear air duct of the fan support by means of a rotating shaft support and fixed axis flipping, and the valve plate drive motor is fixedly mounted on the rear side of the fan support, with the drive shaft end of the valve plate drive motor being fixedly mounted to the rotating shaft end of the regulating valve plate.

[0010] Preferably, the front part of the aforementioned diversion cylinder seat is connected to the rear part of the fan support via a duct, and a connecting ventilation pipe is fixedly connected to the side of the diversion cylinder seat. Multiple connecting ventilation pipes are provided, and the exhaust branch pipe is connected to the diversion cylinder seat via the connecting ventilation pipe.

[0011] Preferably, the exhaust branch pipe is square-shaped, the exhaust branch pipe is installed vertically, and a ventilation slot plate is installed on the lower end of the exhaust branch pipe.

[0012] Preferably, the middle part of the above-mentioned diverter cylinder seat is provided with a rotating cylinder mounting cavity, the adjusting rotating cylinder is rotatably fitted and installed inside the rotating cylinder mounting cavity, and multiple connecting ventilation slots are provided, the connecting ventilation slots being opened through the outer periphery of the adjusting rotating cylinder.

[0013] Preferably, the rear of the above-mentioned diverter cylinder seat is provided with a sealing end cover, which is fixedly installed to the rear of the diverter cylinder seat by bolts. The rotary drum drive motor is fixedly installed to the rear of the sealing end cover, and the transmission output shaft end of the rotary drum drive motor transmission part is fixedly installed to the rear of the adjusting rotary drum.

[0014] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0015] 1. This device adopts a cylindrical base isolation type working protection structure. An isolation cylindrical base is set on the transmission installation side of the exhaust fan blade and the exhaust drive motor. The isolation cylindrical base is L-shaped. After installation, it can form a closed cylindrical cavity structure on the transmission side of the exhaust fan blade and the exhaust drive motor, realizing the isolation installation of the exhaust fan blade transmission part and the inner cavity of the air duct, avoiding the risk of ignition when flammable gas is discharged, and effectively improving the working safety of the exhaust device.

[0016] 2. A dual exhaust control structure is adopted. In the main air duct, the total exhaust volume of the air duct is controlled and adjusted by a regulating valve driven by a valve plate drive motor. On the branch pipe side, the exhaust volume of the branch pipe is controlled and adjusted by a regulating drum driven by a drum drive motor. The dual cooperation can effectively improve the reliability and accuracy of the air volume adjustment of the device. In addition, the regulating drum adopts a slotted air volume adjustment structure. Driven by the drum drive motor, the air volume of the branch pipe section can be flexibly adjusted and controlled on and off. The structure is simple and flexible in operation, which can effectively improve the working control flexibility of the device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall installation upper structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall installation lower structure of this utility model;

[0020] Figure 3 A schematic diagram of the front structure of the exhaust mechanism of this utility model during operation;

[0021] Figure 4 A schematic diagram of the rear structure of the exhaust mechanism of this utility model during operation;

[0022] Figure 5 This is a schematic diagram of the exhaust fan blade drive installation structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the working installation structure of the adjusting drum of this utility model.

[0024] Explanation of reference numerals in the attached drawings: 1. Fan support; 2. Exhaust fan blade; 3. Exhaust drive motor; 4. Valve drive motor; 5. Adjusting valve; 6. Isolation cylinder seat; 7. Drive belt; 8. Drive pulley; 9. Diverter cylinder seat; 10. Exhaust branch pipe; 11. Rotary drum drive motor; 12. Adjusting rotary drum; 13. Connecting ventilation pipe; 14. Ventilation slot plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0027] Example

[0028] Please see Figure 1-6 This utility model provides a technical solution: an exhaust system device, including an exhaust mechanism and an air guiding mechanism. The exhaust mechanism is used for exhausting and transporting air in the duct. The exhaust mechanism includes a fan support 1, exhaust fan blades 2, an exhaust drive motor 3, a valve plate drive motor 4, an adjusting valve plate 5, and an isolation cylinder seat 6. The exhaust fan blades 2 are driven and installed inside the fan support 1 by the exhaust drive motor 3. The isolation cylinder seat 6 is installed on the transmission side between the exhaust fan blades 2 and the exhaust drive motor 3. Specifically, see attached... Figure 3 As shown, the isolation cylinder base 6 is L-shaped and is fixedly installed inside the fan support 1 by means of a support bracket, as shown in the attached figure. Figure 5 As shown, to facilitate the installation and support of the exhaust fan blade 2, a fan blade mounting seat is provided on the rear end pipe side of the isolation cylinder seat 6. The exhaust fan blade 2 is rotatably mounted on the rear of the fan blade mounting seat via a rotating shaft support. The upper end pipe side of the isolation cylinder seat 6 is aligned and connected with the circular slot provided on the upper part of the fan support 1. The exhaust drive motor 3 is used for the working drive of the exhaust fan blade 2. The exhaust drive motor 3 is fixedly mounted on the upper part of the fan support 1 via a support. In order to realize the working drive of the exhaust fan blade 2, both the exhaust drive motor 3 and the rotating shaft end of the exhaust fan blade 2 are fixed. The exhaust fan blade 2 is equipped with a drive pulley 8, and a drive belt 7 is installed on the upper part of the two sets of drive pulleys 8. The drive belt 7 is located on the inner cavity side of the isolation cylinder seat 6. The working protection structure is isolated by the cylinder seat. The isolation cylinder seat 6 is set on the transmission installation side of the exhaust fan blade 2 and the exhaust drive motor 3. The isolation cylinder seat 6 is L-shaped. After installation, it can form a sealed cylinder cavity structure on the transmission side of the exhaust fan blade 2 and the exhaust drive motor 3, realizing the isolation installation of the transmission part of the exhaust fan blade 2 and the inner cavity of the air duct, avoiding the risk of ignition when flammable gas is discharged, and effectively improving the working safety of the exhaust device.

[0029] The regulating valve 5 is used to adjust the airflow on the main duct side. The regulating valve 5 is driven by the valve drive motor 4 and is movably mounted on the connecting side of the duct behind the fan support 1. Specifically, see attached... Figure 4 As shown, the regulating valve 5 is mounted on the connecting side of the air duct at the rear of the fan support 1 by rotating and rotating on a fixed axis. The valve drive motor 4 is fixedly mounted on the rear side of the fan support 1. The drive shaft end of the valve drive motor 4 is fixedly mounted with the shaft end of the regulating valve 5. The total exhaust volume of the air duct can be controlled and adjusted by controlling the rotation angle of the regulating valve 5.

[0030] The air guiding mechanism is used for guiding and connecting the air duct on the branch pipe side. The air guiding mechanism includes a diverter seat 9, an exhaust branch pipe 10, a rotary drum drive motor 11, and an adjusting rotary drum 12. The diverter seat 9 is connected and installed at the rear of the fan support 1. Specifically, see attached... Figure 1 As shown, the front of the distribution cylinder base 9 is connected to the rear of the fan support 1 via a duct. Two sets of exhaust branch pipes 10 are provided, and the exhaust branch pipes 10 are connected to the distribution cylinder base 9. Specifically, to facilitate the operation of the exhaust branch pipes 10, two connecting ventilation pipes 13 are fixedly installed on the side of the distribution cylinder base 9. The exhaust branch pipes 10 are connected to the distribution cylinder base 9 via the connecting ventilation pipes 13, as shown in the attached diagram. Figure 2 As shown, the exhaust branch pipe 10 is square tube in shape and is installed vertically. In order to facilitate the installation and protection of the lower opening of the exhaust branch pipe 10, a ventilation slot plate 14 is installed on the lower end of the exhaust branch pipe 10.

[0031] The adjusting drum 12 is driven to rotate by the drum drive motor 11 and is installed inside the diverter drum seat 9, as shown in the attached figure. Figure 6As shown, to facilitate the connection and installation of the adjusting drum 12, a drum mounting cavity is provided in the middle of the diverter drum seat 9. The adjusting drum 12 is rotatably fitted into the inside of the drum mounting cavity. A dual exhaust control structure is adopted. In the main air duct, the total exhaust volume of the air duct is controlled and adjusted by the adjusting valve 5 driven by the valve plate drive motor 4. On the branch pipe side, the exhaust volume of the exhaust branch pipe 10 is controlled and adjusted by the adjusting drum 12 driven by the drum drive motor 11. The dual cooperation can effectively improve the reliability and accuracy of the air volume adjustment of the device. In order to facilitate the connection between the air volume adjustment and the air duct, three connecting ventilation slots are provided on the periphery of the adjusting drum 12. The three connecting ventilation slots are opened through the outer periphery of the adjusting drum 12. To achieve working closure of the open side at the rear of the diverter seat 9, a sealing end cover is provided at the rear of the diverter seat 9. The sealing end cover is fixedly installed to the rear of the diverter seat 9 by bolts. The rotary drum drive motor 11 is used to adjust the working drive of the rotary drum 12. The rotary drum drive motor 11 is fixedly installed at the rear of the sealing end cover. A reducer is provided on the drive side of the rotary drum drive motor 11. The shaft end of the rotary drum drive motor 11 is fixedly installed with the drive input shaft end of the reducer. The transmission output shaft end of the reducer is fixedly installed with the rear of the adjusting rotary drum 12. The air volume adjustment structure adopts a slotted staggered structure. Driven by the rotary drum drive motor 11, the air volume of the branch pipe section can be flexibly adjusted and controlled on and off. The structure is simple and the operation is flexible, which can effectively improve the working control flexibility of the device.

[0032] Working principle or structural principle: During operation, the exhaust drive motor 3, in conjunction with the drive belt 7 and drive pulley 8, drives the exhaust fan blades 2 to extract air from the duct. During operation, a sealed cylindrical cavity structure is formed between the exhaust fan blades 2 and the drive side of the exhaust drive motor 3, achieving shielding and isolation of the isolation cylinder seat 6. This creates a cylindrical isolation and protection structure between the drive part of the exhaust fan blades 2 and the inner cavity of the duct, avoiding the risk of ignition during the exhaust of flammable gases and effectively improving the operational safety of the exhaust device. For airflow regulation during operation, in the main duct, the regulating valve 5, driven by the valve plate drive motor 4, controls and adjusts the total exhaust volume and controls the opening and closing of the main duct. In the branch ducts, the airflow is adjusted by... The regulating drum 12, driven by the drum drive motor 11, controls and adjusts the exhaust air volume on the side of the exhaust branch pipe 10. During adjustment, the regulating drum 12 is rotated by the drum drive motor 11. By changing the stagger of the ventilation slots on both sides, the exhaust air volume of the exhaust branch pipe 10 is controlled and adjusted. Furthermore, by changing the docking direction of the three sets of ventilation slots on the upper part of the regulating drum 12, the on / off control of the exhaust branch pipe 10 on one side can be achieved. The dual cooperation can effectively improve the reliability and accuracy of the air volume adjustment of the device. Moreover, the regulating drum 12 adopts a slot staggered air volume adjustment structure. Driven by the drum drive motor 11, the air volume of the branch pipe section can be flexibly adjusted and controlled. The structure is simple and the operation is flexible, which can effectively improve the working control flexibility of the device.

[0033] In summary, this device adopts a cylindrical base isolation working protection structure. An isolation cylindrical base 6 is provided on the transmission mounting side of the exhaust fan blade 2 and the exhaust drive motor 3. The isolation cylindrical base 6 is L-shaped. After installation, it can form a sealed cylindrical cavity structure on the transmission side of the exhaust fan blade 2 and the exhaust drive motor 3, realizing the isolation installation of the transmission part of the exhaust fan blade 2 and the inner cavity of the air duct, avoiding the risk of ignition when flammable gas is discharged, and effectively improving the working safety of the exhaust device. It adopts a dual exhaust control structure. In the main air duct, the regulating valve 5 driven by the valve plate drive motor 4 realizes the control and adjustment of the total exhaust volume of the air duct. On the branch pipe side, the regulating drum 12 driven by the drum drive motor 11 realizes the control and adjustment of the exhaust volume on the exhaust branch pipe 10 side. The dual cooperation can effectively improve the reliability and accuracy of the air volume adjustment of the device. In addition, the regulating drum 12 adopts a slotted staggered air volume adjustment structure. Driven by the drum drive motor 11, it can realize flexible adjustment and on / off control of the air volume of the branch pipe section. The structure is simple and flexible in operation, which can effectively improve the working control flexibility of the device.

[0034] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. An exhaust system device, comprising an exhaust mechanism and an air guiding mechanism, characterized in that, The exhaust mechanism includes a fan support (1), an exhaust fan blade (2), an exhaust drive motor (3), a valve plate drive motor (4), an adjusting valve plate (5), and an isolation cylinder seat (6). The exhaust fan blade (2) is driven and installed inside the fan support (1) by the exhaust drive motor (3). The isolation cylinder seat (6) is installed on the transmission side of the exhaust fan blade (2) and the exhaust drive motor (3). The adjusting valve plate (5) is driven and movably installed on the connecting side of the rear air duct of the fan support (1) by the valve plate drive motor (4). The air guiding mechanism includes a diverter base (9), an exhaust branch pipe (10), a rotary drum drive motor (11), and an adjusting rotary drum (12). The diverter base (9) is connected to and installed at the rear of the fan support (1). Multiple sets of exhaust branch pipes (10) are provided. The exhaust branch pipes (10) are connected to and installed in the diverter base (9). The adjusting rotary drum (12) is driven to rotate inside the diverter base (9) by the rotary drum drive motor (11). The adjusting rotary drum (12) has ventilation slots on its periphery.

2. The exhaust system device according to claim 1, characterized in that, The isolation cylinder seat (6) is L-shaped. The isolation cylinder seat (6) is fixedly installed inside the fan support (1) by a support. A fan blade mounting seat is provided on the rear end pipe side of the isolation cylinder seat (6). The exhaust fan blade (2) is rotatably installed on the rear of the fan blade mounting seat by a rotating shaft. The upper end pipe side of the isolation cylinder seat (6) is aligned and connected with the circular slot provided on the upper part of the fan support (1).

3. The exhaust system device according to claim 2, characterized in that, The exhaust drive motor (3) is fixedly installed on the upper part of the fan support (1) by a support. Both the exhaust drive motor (3) and the exhaust fan blade (2) have drive pulleys (8) fixedly installed on their shaft ends. The upper part of the two sets of drive pulleys (8) is equipped with drive belts (7), which are located on the inner cavity side of the isolation cylinder seat (6).

4. An exhaust system device according to claim 3, characterized in that, The regulating valve plate (5) is mounted on the connecting side of the rear air duct of the fan support (1) by means of a rotating shaft support and fixed axis flipping. The valve plate drive motor (4) is fixedly mounted on the rear side of the fan support (1). The drive shaft end of the valve plate drive motor (4) is fixedly mounted with the shaft end of the regulating valve plate (5).

5. An exhaust system device according to claim 1, characterized in that, The front part of the diversion cylinder seat (9) is connected to the rear part of the fan support (1) through the air duct. A connecting ventilation pipe (13) is fixedly connected to the side of the diversion cylinder seat (9). Multiple connecting ventilation pipes (13) are provided. The exhaust branch pipe (10) is connected to the diversion cylinder seat (9) through the connecting ventilation pipe (13).

6. An exhaust system device according to claim 5, characterized in that, The exhaust branch pipe (10) is square tube in shape and is installed vertically. A ventilation slot plate (14) is installed on the lower end of the exhaust branch pipe (10).

7. An exhaust system device according to claim 6, characterized in that, The middle part of the diverter cylinder seat (9) is provided with a rotating cylinder mounting cavity. The adjusting rotating cylinder (12) is rotatably fitted and installed inside the rotating cylinder mounting cavity. Multiple connecting ventilation slots are provided. The connecting ventilation slots are opened through the outer periphery of the adjusting rotating cylinder (12).

8. An exhaust system device according to claim 7, characterized in that, The rear of the diverter cylinder seat (9) is provided with a sealing end cover. The sealing end cover is fixedly installed to the rear of the diverter cylinder seat (9) by bolts. The rotary drum drive motor (11) is fixedly installed to the rear of the sealing end cover. The transmission output shaft end of the transmission part of the rotary drum drive motor (11) is fixedly installed to the rear of the adjusting drum (12).