Air exhaust device for clean workshop pipeline

By using wind direction sensors and controllers in the clean factory exhaust device, combined with sealed covers and multi-stage exhaust duct diversion mechanism, the problem of strong winds in the outside world pollutes the factory, and the exhaust effect of clean factory under strong wind conditions is achieved.

CN223283191UActive Publication Date: 2025-08-29CHINA 19TH METALLURGICAL CORP CHENGDU CONSTR +1
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Patent Information

Application Number
CN202422647744.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-31
Publication Date
2025-08-29
Estimated Expiration
2034-10-31

AI Technical Summary

Technical Problem

In a clean factory, backflow wind caused by strong external winds will pollute the interior of the factory and affect product quality.

Method used

The wind direction sensor and controller are used to match the sealing cover and alarm to detect changes in the wind direction and close the exhaust duct if necessary. At the same time, the multi-stage exhaust duct and flow guide mechanism are used to adjust the wind direction to reduce the inlet of backflow wind.

Benefits of technology

It effectively reduces the possibility of backflow wind entering the factory under strong external winds, ensures the cleanliness of the air inside the factory, and ensures product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of air exhaust devices, in particular to a clean workshop pipeline air exhaust device which comprises a first air exhaust pipe, an air exhaust fan assembly is arranged in the first air exhaust pipe, a wind direction sensor is arranged at the end of the left side of the first air exhaust pipe, and a sealing cover is rotationally connected to the first air exhaust pipe. The sealing cover can enable the first exhaust pipe to be in an opened or closed state, and the sealing ring can be detachably arranged in the sealing groove; when the pipeline exhaust device is used and external wind power is too strong to cause backward flowing wind to enter the first exhaust pipe, the wind direction sensor can detect the change of the wind direction at the first time and transmit detected data to the controller, the controller controls the alarm to give an alarm after data analysis, and after a worker knows the data, the alarm gives an alarm. And the sealing cover covers the right side end part of the first exhaust pipe, so that the first exhaust pipe is in a closed state, and therefore, the possibility that unclean backward flowing air enters a plant is effectively reduced, and pollution to air in the plant is reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of exhaust devices, in particular to a clean workshop pipeline exhaust device. Background Art

[0002] A cleanroom, also known as a dust-free workshop or cleanroom, is a specially designed room that removes airborne contaminants such as particulate matter, harmful air, and bacteria from a defined area. It also controls the indoor temperature, cleanliness, pressure, air velocity and distribution, noise, vibration, lighting, and static electricity within a specified range. This means that regardless of changes in external air conditions, the room maintains the required cleanliness, temperature, humidity, and pressure.

[0003] Clean workshops require exhaust ducts and exhaust fans to ventilate the room. However, if the wind volume and speed outside the workshop are high, the wind force discharged by the exhaust duct will be lower than the wind force of the backflow wind. In this way, the unclean backflow wind from the outside will enter the workshop and pollute the air inside the workshop. The products in the clean workshop will be contaminated and the products will be unqualified. Utility Model Content

[0004] The purpose of the utility model is to provide a clean workshop pipeline exhaust device to solve the problems raised in the above background technology.

[0005] The utility model solves the technical problem thereof by adopting the technical solution as follows: a clean workshop duct exhaust device comprises a first exhaust duct, an exhaust fan assembly is provided in the first exhaust duct, a wind direction sensor is provided at the left end portion of the first exhaust duct, a sealing groove is provided at the right end surface of the first exhaust duct, a sealing cover is rotatably connected to the first exhaust duct, a sealing ring is provided on the surface of the sealing cover, the sealing cover can make the first exhaust duct be in an open or closed state, and the sealing ring can be detachably arranged in the sealing groove;

[0006] It also includes a controller and an alarm, and the alarm, the exhaust fan component and the wind direction sensor are all electrically connected to the controller.

[0007] Furthermore, it also includes a second exhaust duct, a third exhaust duct, a collecting mechanism, a fourth exhaust duct and a guide mechanism, the second exhaust duct is connected to the left side of the first exhaust duct, the third exhaust duct is rotatably connected to the left side of the second exhaust duct, and the left side of the third exhaust duct is a closed structure, the fourth exhaust duct is vertically connected to the lower side of the third exhaust duct, and the collecting mechanism is connected to the left side of the third exhaust duct;

[0008] The first exhaust duct, the second exhaust duct, the third exhaust duct and the fourth exhaust duct are connected, and an air induction channel is provided in the collection mechanism. The width of the air induction channel gradually decreases from top to bottom, and the air induction direction of the air induction channel is the same as the exhaust direction of the fourth exhaust duct;

[0009] The air guide mechanism is arranged on the left side of the fourth air exhaust duct.

[0010] Furthermore, the collecting mechanism includes four trapezoidal plates that are larger at the top and smaller at the bottom. The trapezoidal plates are arranged at equal intervals from front to back. A lower pressure plate is provided on the left side of the trapezoidal plate. The channel formed by adjacent trapezoidal plates and the lower pressure plate is an air induced channel.

[0011] Furthermore, the guide mechanism includes two mounting plates, which are a left mounting plate and a right mounting plate respectively. A plurality of guide blocks are arranged between the left mounting plate and the right mounting plate. The guide blocks are arranged at intervals, and a guide groove is opened on the left side of the guide block.

[0012] Furthermore, the air guide mechanism also includes a first wind shield, which is provided at the lower part of the left mounting plate and the right mounting plate, so that the lower part of the air guide mechanism is a closed structure.

[0013] Furthermore, the air guide mechanism is arranged on the left side of the fourth exhaust duct through a mounting ring.

[0014] Furthermore, there are a plurality of fourth air ducts, and the fourth air ducts are arranged at equal intervals from the front to the back;

[0015] It also includes a second wind shield, and a second wind shield is arranged under each fourth exhaust pipe.

[0016] Furthermore, the cross-section of the second wind deflector is triangular.

[0017] The utility model has the following beneficial effects: a wind direction sensor is provided at the left end of the first exhaust duct, a sealing groove is provided on the left end surface of the first exhaust duct, a sealing cover is rotatably connected to the first exhaust duct, a sealing ring is provided on the surface of the sealing cover, the sealing cover can make the first exhaust duct open or close, and the sealing ring can be detachably arranged in the sealing groove; the utility model also includes a controller and an alarm, the alarm, the exhaust fan assembly and the wind direction sensor are all electrically connected to the controller. When the duct exhaust device is in use, the sealing cover makes the first exhaust duct open to exhaust the interior of the factory building. When the external wind force is too strong and causes backflow wind to enter the first exhaust duct, the wind direction sensor can detect the change of wind direction in the first time and transmit the detected data to the controller. After the controller obtains the data analysis, it controls the alarm to sound an alarm. After the staff learns of the change, they cover the sealing cover on the right end of the first exhaust duct to close the first exhaust duct. The sealing ring is detachably arranged in the sealing groove, thereby ensuring the sealing effect of the sealing cover, thereby effectively reducing the possibility of unclean backflow wind entering the interior of the factory building, reducing the pollution to the air inside the factory building, and ensuring the qualified rate of the product.

[0018] In addition, the utility model is also provided with a second exhaust duct, a third exhaust duct, a collecting mechanism, a fourth exhaust duct and a guide mechanism. Under the action of the collecting mechanism and the guide mechanism, the third exhaust duct can rotate around the second exhaust duct with the help of external wind force, so that the wind discharged from the fourth exhaust duct is consistent with the wind direction of the external strong wind, further reducing the possibility of unclean backflow wind entering the interior of the factory building, so that when the external wind force is strong, the pipeline exhaust device can also perform the exhaust work inside the factory building, ensuring the normal use of the factory building. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the utility model;

[0020] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 It is a schematic cross-sectional view of part of the structure of the utility model;

[0022] Figure 4 yes Figure 1 Schematic diagram after rotating 90° clockwise;

[0023] Figure 5 It is a schematic diagram of the diversion mechanism and its connected parts;

[0024] Figure 6 is a schematic diagram of the diversion mechanism;

[0025] Figure 7 is a schematic diagram of the guide block;

[0026] Marked as: first exhaust duct 1, sealing groove 11, second wind shield 12, exhaust fan assembly 2, wind direction sensor 3, sealing cover 4, sealing ring 41, second exhaust duct 5, third exhaust duct 6, collecting mechanism 7, air inlet channel 71, trapezoidal plate 72, lower pressure plate 73, fourth exhaust duct 8, guide mechanism 9, left mounting plate 91, right mounting plate 92, first wind shield 93, guide block 94, air inlet hole 95, mounting ring 10. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0028] The following refers to the direction Figure 1 The position of each component in the figure is used as the reference.

[0029] like Figure 1 、 Figure 2 and Figure 3 As shown, the utility model clean room pipeline exhaust device includes a first exhaust duct 1, an exhaust fan assembly 2 is provided in the first exhaust duct 1, a wind direction sensor 3 is provided at the left end of the first exhaust duct 1, a sealing groove 11 is provided on the left end surface of the first exhaust duct 1, a sealing cover 4 is rotatably connected to the first exhaust duct 1, a sealing ring 41 is provided on the surface of the sealing cover 4, the sealing cover 4 can make the first exhaust duct 1 open or closed, and the sealing ring 41 can be detachably arranged in the sealing groove 11;

[0030] It also includes a controller and an alarm, and the alarm, the exhaust fan assembly 2 and the wind direction sensor 3 are all electrically connected to the controller.

[0031] The wind direction sensor 3 is preferably an ultrasonic wind direction sensor. When the duct exhaust device is in use, the exhaust fan assembly 2 works, and the sealing cover 4 keeps the first exhaust duct 1 in an open state to perform exhaust work inside the factory. When the external wind is too strong and backflow wind enters the first exhaust duct 1, the wind direction sensor 3 can detect the change in wind direction in the first time and transmit the detected data to the controller. After the controller obtains the data analysis, it controls the alarm to sound an alarm. After the staff learns about it, they cover the sealing cover 4 on the right end of the first exhaust duct 1 to make the first exhaust duct 1 in a closed state. The sealing ring 41 is detachably arranged in the sealing groove 11 to ensure the sealing effect of the sealing cover 4, thereby effectively reducing the possibility of unclean backflow wind entering the interior of the factory, reducing the pollution to the air inside the factory, and ensuring the product's qualified rate.

[0032] In order to further reduce the possibility of dirty backflow wind entering the factory, Figure 1 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7As shown, the utility model is also provided with a second exhaust duct 5, a third exhaust duct 6, a collecting mechanism 7, a fourth exhaust duct 8 and a guide mechanism 9. The second exhaust duct 5 is connected to the left side of the first exhaust duct 1, the third exhaust duct 6 is rotatably connected to the left side of the second exhaust duct 5, and the left side of the third exhaust duct 6 is a closed structure. The fourth exhaust duct 8 is vertically connected to the lower side of the third exhaust duct 6, and the collecting mechanism 7 is connected to the left side of the third exhaust duct 6; the first exhaust duct 1, the second exhaust duct 5, the third exhaust duct 6 and the fourth exhaust duct 8 are connected. The collecting mechanism 7 is connected. An air induction channel 71 is provided in the collecting mechanism 7. The width of the air induction channel 71 gradually decreases from top to bottom. The air induction direction of the air induction channel 71 is the same as the exhaust direction of the fourth exhaust duct 8. The guide mechanism 9 is provided on the left side of the fourth exhaust duct 8. The guide mechanism 9 includes two mounting plates, namely a left mounting plate 91 and a right mounting plate 92. A plurality of guide blocks 94 are provided between the left mounting plate 91 and the right mounting plate 92. The guide blocks 94 are arranged at intervals. The left side of the guide block 94 has a guide groove. The third exhaust duct 6 is rotatably connected to the left side of the second exhaust duct 5, which means that the third exhaust duct 6 and the second exhaust duct 5 are coaxial. The third exhaust duct 6 can rotate around the second exhaust duct 5. When the strong wind outside the factory hits the duct exhaust device, the collecting mechanism 7 and the guide mechanism 9 will shake due to the influence of the wind, and the wind will eventually enter the inside of the left mounting plate 91 and the right mounting plate 92 through the air duct 71, and be discharged from the gap between the guide block 94, so that the wind direction is the same as the exhaust direction of the fourth exhaust duct 8, and then with the help of the external wind force, the third exhaust duct 6 is rotated around the second exhaust duct 5, so that the wind discharged from the fourth exhaust duct 8 is consistent with the wind direction of the strong wind outside, further reducing the possibility of unclean backflow wind entering the interior of the factory, so that when the external wind is strong, the duct exhaust device can also perform the exhaust work inside the factory, ensuring the normal use of the factory.

[0033] In order to facilitate the processing and use of the collecting mechanism 7, a preferred structure of the collecting mechanism 7 of the present invention is as follows: Figure 1 、 Figure 4 As shown, the collecting mechanism 7 includes four trapezoidal plates 72 that are larger at the top and smaller at the bottom. The trapezoidal plates 72 are arranged at equal intervals from front to back. A lower pressure plate 73 is provided on the left side of the trapezoidal plate 72. The channel formed by adjacent trapezoidal plates 72 and the lower pressure plate 73 is an air induced channel 71.

[0034] In order to prevent the external strong wind from moving from the bottom of the guide mechanism 9 to the top thereof, affecting the use of the guide mechanism 9, Figure 5 As shown, the air guide mechanism 9 further includes a first wind shield 93 , which is provided at the lower portion of the left mounting plate 91 and the right mounting plate 92 , so that the lower portion of the air guide mechanism 9 is a closed structure.

[0035] In order to facilitate the installation of the guide mechanism 9, Figure 1As shown, the air guide mechanism 9 is arranged on the left side of the fourth exhaust duct 8 through the mounting ring 10 .

[0036] In order to improve the use effect, the diameter of the fourth exhaust pipe 8 is a smaller diameter, and the number of the fourth exhaust pipe 8 is multiple, and the fourth exhaust pipe 8 is arranged in equal intervals from the front to the back. Figure 1 As shown, the present invention is further provided with a second wind shield 12. A second wind shield 12 is provided below each fourth exhaust duct 8. The second wind shield 12 is arranged horizontally and can be connected to the air guide mechanism 9 or installed on the fourth exhaust duct 8 via a connecting plate. To reduce the possibility of the second wind shield 12 affecting the exhaust of the fourth exhaust duct 8, the cross-section of the second wind shield 12 is triangular.

Claims

1. A clean room duct exhaust device, comprising a first exhaust duct (1), wherein an exhaust fan assembly (2) is provided in the first exhaust duct (1), and characterized in that: A wind direction sensor (3) is provided at the left end of the first exhaust duct (1), a sealing groove (11) is provided at the right end surface of the first exhaust duct (1), a sealing cover (4) is rotatably connected to the first exhaust duct (1), a sealing ring (41) is provided on the surface of the sealing cover (4), the sealing cover (4) can make the first exhaust duct (1) be in an open or closed state, and the sealing ring (41) can be detachably provided in the sealing groove (11); It also includes a controller and an alarm, and the alarm, the exhaust fan assembly (2) and the wind direction sensor (3) are all electrically connected to the controller.

2. The clean room duct exhaust device according to claim 1, characterized in that: It also includes a second exhaust pipe (5), a third exhaust pipe (6), a collecting mechanism (7), a fourth exhaust pipe (8) and a flow guiding mechanism (9), wherein the second exhaust pipe (5) is connected to the left side of the first exhaust pipe (1), the third exhaust pipe (6) is rotatably connected to the left side of the second exhaust pipe (5), and the left side of the third exhaust pipe (6) is a closed structure, the fourth exhaust pipe (8) is vertically connected to the lower side of the third exhaust pipe (6), and the collecting mechanism (7) is connected to the left side of the third exhaust pipe (6); The first exhaust duct (1), the second exhaust duct (5), the third exhaust duct (6) and the fourth exhaust duct (8) are connected, and an air induction channel (71) is provided in the collecting mechanism (7). The width of the air induction channel (71) gradually decreases from top to bottom, and the air induction direction of the air induction channel (71) is the same as the exhaust direction of the fourth exhaust duct (8); The flow guide mechanism (9) is arranged on the left side of the fourth exhaust duct (8).

3. The clean room duct exhaust device according to claim 2, characterized in that: The collecting mechanism (7) comprises four trapezoidal plates (72) that are larger at the top and smaller at the bottom. The trapezoidal plates (72) are arranged in sequence from front to back at equal intervals. A lower pressing plate (73) is provided on the left side of the trapezoidal plates (72). A channel formed by adjacent trapezoidal plates (72) and the lower pressing plate (73) is an air induction channel (71).

4. The clean room duct exhaust device according to claim 2, characterized in that: The flow guide mechanism (9) comprises two mounting plates, the two mounting plates being a left mounting plate (91) and a right mounting plate (92). A plurality of flow guide blocks (94) are arranged between the left mounting plate (91) and the right mounting plate (92). The flow guide blocks (94) are arranged at intervals, and a flow guide groove is provided on the left side of the flow guide block (94).

5. The clean room duct exhaust device according to claim 4, characterized in that: The air guide mechanism (9) further comprises a first wind shield (93), which is provided at the lower parts of the left mounting plate (91) and the right mounting plate (92), so that the lower part of the air guide mechanism (9) is a closed structure.

6. The clean room duct exhaust device according to claim 2, characterized in that: The flow guide mechanism (9) is arranged on the left side of the fourth exhaust pipe (8) through a mounting ring (10).

7. The clean room duct exhaust device according to any one of claims 1 to 6, characterized in that: The number of the fourth exhaust ducts (8) is multiple, and the fourth exhaust ducts (8) are arranged in equal intervals from the front to the back; It also includes a second windshield (12), and a second windshield (12) is provided below each fourth exhaust pipe (8).

8. The clean room duct exhaust device according to claim 7, characterized in that: The cross-section of the second windshield (12) is triangular.