Exhaust device

Abstract

The utility model discloses an air exhaust device which comprises an air exhaust chamber body, a fan volute and an air exhaust motor. One side of the air exhaust chamber body is connected with an air exhaust motor through a fan volute, and an air inlet is formed in the other side of the air exhaust chamber body and used for collecting water mist; the fan volute comprises two connecting plates and an arc-shaped plate, the arc-shaped plate is assembled between the two connecting plates, and an exhaust structure is arranged on the arc-shaped plate; air containing water mist in the room can be efficiently collected and discharged through the air inlet and the fan volute which are arranged on the exhaust chamber body; and the exhaust chamber body, the fan volute, the exhaust motor and other parts are reasonable in design, so that the exhaust efficiency is ensured, and the operation noise and the energy consumption are reduced.

Description

Technical Field

[0001] The utility model relates to the field of painting processes, and more particularly to an exhaust device. Background Art

[0002] In modern painting production lines, pretreatment before painting is a crucial link, which directly affects the quality and durability of subsequent paint coatings. The pretreatment process usually includes multiple process sections such as degreasing, silane conversion, and water washing. A large amount of water mist and fine particles are generated during these process sections. These water mists are mainly formed by the evaporation of process liquids, water droplets splashed during the cleaning process, and the condensation of gases generated by chemical reactions. They contain impurities such as grease and chemical treatment agent residues, posing a potential threat to the environment and human health.

[0003] If these generated water mists are not treated promptly and effectively, they will quickly spread and overflow into the entire workshop, deteriorating the working environment. Specifically, the water mist will not only reduce the visibility in the workshop, increasing the operation difficulty and safety risks, but may also corrode the surface of equipment, accelerating equipment aging. In addition, long-term exposure to water mist containing chemical substances will also have adverse effects on the respiratory system, skin, etc. of workers, seriously threatening the health and safety of staff. Therefore, developing an efficient and reliable steam mist treatment device has become an urgent problem to be solved in the pretreatment process before painting. Traditional methods such as natural ventilation or simple exhaust fans can alleviate the water mist problem to a certain extent, but the effect is limited, unable to completely solve the problem, and may spread pollutants to a wider area. Summary of the Utility Model

[0004] In order to overcome the above defects in the prior art, an exhaust device with high exhaust efficiency and convenient assembly is provided.

[0005] The technical solution of the utility model is as follows: an exhaust device, including an exhaust chamber body, a fan volute, and an exhaust motor; one side of the exhaust chamber body is connected to the exhaust motor through the fan volute, and the other side of the exhaust chamber body is provided with an air inlet for collecting water mist; the fan volute includes two connecting plates and an arc-shaped plate, the arc-shaped plate is located between the two connecting plates, and an exhaust structure is provided on the arc-shaped plate; through the air inlet provided in the exhaust chamber body and the fan volute, the air containing water mist in the room can be efficiently collected and discharged; the design of components such as the exhaust chamber body, the fan volute, and the exhaust motor is reasonable, which not only ensures the exhaust efficiency but also reduces the operation noise and energy consumption.

[0006] Preferably, a plurality of water return holes are provided on the arc-shaped plate, and the plurality of water return holes are arranged on the side far from the exhaust structure; the water return holes are used to discharge the water droplets formed by the condensation of water mist. By discharging the accumulated water droplets in time, the accumulation of water in the exhaust device is avoided, thereby affecting the normal operation of the device or causing damage.

[0007] Preferably, there are at least three water return holes, and the three water return holes are arranged equidistantly on the arc-shaped plate. The existence of multiple water return holes reduces the possibility of water droplets accumulating and forming ponding on the arc-shaped plate, avoids problems such as local ponding or poor drainage, and improves the overall stability and reliability of the device.

[0008] Preferably, the first through holes and the second through holes are respectively arranged on the two connecting plates. The first through holes are communicated with the exhaust chamber body, and a connecting steel plate for installing the exhaust fan motor is assembled on the second through holes. The first through holes are used to communicate with the exhaust chamber body to ensure that the air flow can smoothly enter the fan volute from the exhaust chamber body and then be driven by the exhaust fan motor to be discharged. A connecting steel plate is assembled on the second through holes, and the connecting steel plate is used to install the exhaust fan motor. Through the connecting steel plate, the exhaust fan motor can be firmly fixed on the fan volute to ensure the stability and reliability of power transmission.

[0009] Preferably, the exhaust structure includes an exhaust pipe and a guide plate. The connection between the guide plate and the outer side of the arc-shaped plate is smoothly connected, and the exhaust pipe is connected to the arc-shaped plate through the guide plate. The guide plate is used to guide the air flow, and is smoothly connected to the arc-shaped plate, ensuring that the air flow can smoothly transition during the flowing process, reducing turbulence and resistance, and improving the exhaust efficiency.

[0010] Preferably, the exhaust pipe is communicated with the fan volute, ensuring that the air flow can smoothly flow out of the fan volute and continue to flow along the exhaust pipe.

[0011] Preferably, an output shaft is provided on the exhaust fan motor. The output shaft is assembled on the connecting steel plate and is used to connect with the fan volute, ensuring a firm connection between the motor and the fan volute, and enabling the power of the motor to be efficiently transmitted to the fan volute and its internal components.

[0012] Preferably, a support member for supporting the exhaust fan motor is installed on the connecting steel plate. It provides a firm supporting force to ensure that the exhaust fan motor will not be displaced or tilted due to vibration or external force during operation. It also has the functions of shock absorption and noise reduction, and can reduce the vibration and noise during the operation of the motor.

[0013] Preferably, the exhaust fan motor and the support member are fixed by bolts, which is convenient for installation and disassembly and facilitates the operation and maintenance personnel to carry out inspection and replacement.

[0014] Preferably, it further includes a control system, and the control system is electrically connected to the exhaust fan motor. Through the connection with the exhaust fan motor, the control system realizes the real-time monitoring and control of the operation state of the motor and the operation parameters of the system, ensuring the normal operation and efficient work of the entire exhaust system.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] An exhaust device can efficiently exhaust air and collect water mist. Through the air inlet opened in the exhaust chamber body, it can effectively collect and guide the water mist into the device. The coordinated work of the fan volute and the exhaust motor can quickly exhaust the water mist and air, ensuring a dry and clean environment.

[0017] Furthermore, the return water function is optimized. Multiple evenly arranged return water holes opened on the arc-shaped plate enhance the return water efficiency and also ensure the uniform distribution of the water mist in the volute, reducing the accumulation of the water mist in the device, thereby avoiding possible blockage or corrosion problems.

[0018] Furthermore, the layout of the first through holes and the second through holes on the two connecting plates is reasonable, which not only meets the requirement of air flow but also ensures the stable installation of the exhaust motor. This makes the structure of the entire exhaust device compact, reasonable and easy to maintain.

[0019] Other features and advantages of the present utility model will be disclosed in detail in the following specific embodiments and drawings. Brief Description of the Drawings

[0020] The following further describes the present utility model with reference to the drawings:

[0021] Figure 1 Side view of the structure of an exhaust device of the present utility model Figure 1 ;

[0022] Figure 2 Side view of the structure of an exhaust device of the present utility model Figure 2 ;

[0023] The description of the reference numerals is as follows:

[0024] Exhaust chamber body 1, fan volute 2, exhaust motor 3, air inlet 4, connecting plate 21, arc-shaped plate 22, exhaust structure 221, return water hole 222, first through hole 211, second through hole 212, exhaust pipe 221-1, guide plate 221-2, output shaft 31, connecting steel plate 5, support member 51. Detailed Description of the Preferred Embodiment

[0025] The technical solutions of the embodiments of the present utility model will be explained and described below with reference to the drawings of the embodiments of the present utility model. However, the following embodiments are only the preferred embodiments of the present utility model and not all of them. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present utility model.

[0026] In the following description, terms indicating orientation or positional relationships such as "inner", "outer", "upper", "lower", "left", "right", etc. are only for the convenience of describing the embodiments and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0027] As Figures 1 to 2 shown, an exhaust device includes an exhaust chamber body 1, a blower housing 2, and an exhaust motor 3; the exhaust chamber body 1 serves as the main part of the entire exhaust device, responsible for accommodating and guiding the air flow; one side of the exhaust chamber body 1 is connected to the exhaust motor 3 through the blower housing 2, and the exhaust motor 3, as a power source, is used to drive the air flow inside the blower housing 2; the other side of the exhaust chamber body 1 is provided with an air inlet 4, and the air inlet 4 is used to collect water mist; the blower housing 2 includes two connecting plates 21 and an arc plate 22, and the two connecting plates 21 are respectively fixed on both sides of the blower housing 2, providing a stable support structure for the arc plate 22; the arc plate 22 is located between the two connecting plates 21, and an exhaust structure 221 for discharging the water mist is further provided on the arc plate 22.

[0028] Among them, a plurality of water return holes 222 are provided on the arc plate 22, and the plurality of water return holes 222 are opened on the side far from the exhaust structure 221; the water return holes 222 are used for draining water. During the exhaust process, if there is more water mist or water vapor in the air, these water vapor may condense into water droplets when encountering cold or being affected by other factors. The water return holes 222 can ensure that these water droplets can be discharged smoothly, avoiding accumulation inside the blower housing 2, thereby affecting its normal operation or causing damage.

[0029] In this embodiment, at least three water return holes 222 are provided, and the three water return holes 222 are arranged at equal distances on the arc plate 22, which can achieve multi-point drainage; no matter where the water droplets condense on the arc plate 22, they can be quickly discharged through the nearest water return hole, thereby improving the overall drainage efficiency; reducing the possibility of water droplets accumulating and forming ponding on the arc plate 22. Even in an environment with high humidity or a large amount of water mist, the interior of the device can be kept dry and clean.

[0030] On the two connecting plates 21, a first through hole 211 and a second through hole 212 are respectively arranged; the first through hole 211 is communicated with the exhaust chamber body 1, and the first through hole 211 is used to communicate with the exhaust chamber body 1 to ensure that the air flow can smoothly enter the fan volute 2 from the exhaust chamber body 1 and then be driven by the exhaust motor 3 to be discharged. To ensure the airtightness and exhaust efficiency of the air flow, the connection between the first through hole 211 and the exhaust chamber body 1 should adopt a sealing material or a sealing structure to prevent air leakage; a connecting steel plate 5 for installing the exhaust motor 3 is assembled on the second through hole 212. Through the connecting steel plate 5, the exhaust motor 3 can be firmly fixed on the fan volute 2 to ensure the stability and reliability of power transmission.

[0031] The exhaust structure 221 includes an exhaust pipe 221-1 and a guide plate 221-2. The guide plate 221-2 is smoothly connected to the end of the arc plate 22, so that the outermost side of the arc plate 22 is smoothly connected to the guide plate 221-2, ensuring that the air flow can smoothly transition during the flowing process, reducing turbulence and resistance; moreover, the smooth connection reduces the stress concentration and wear problems caused by gaps or unevenness between components, thereby prolonging the service life of the exhaust device; the exhaust pipe 221-1 is connected to the arc plate 22 through the guide plate 221-2; the exhaust pipe 221-1 is connected to the arc plate 22 through the guide plate 221-2, further strengthening the air flow guiding property. The smooth inner surface and low resistance design of the exhaust pipe 221-1 contribute to the rapid flow of the air flow in the pipe, while the guide plate 221-2 ensures that the air flow can smoothly enter the exhaust pipe 221-1, avoiding noise and vibration caused by air flow impact. One end of the exhaust pipe 221-1 is communicated with the exhaust pipe 221-1 of the fan volute 2, forming a complete air flow circulation path, ensuring that the air flow can smoothly flow out of the fan volute and continue to flow along the exhaust pipe 221-1.

[0032] In this embodiment, for the convenience of maintenance and cleaning work, the guide plate 221-2 and the exhaust pipe 221-1 in the exhaust structure 221 adopt a detachable design. When these components need to be cleaned or inspected, they can be conveniently disassembled for processing.

[0033] An output shaft 31 is provided on the exhaust motor 3; the output shaft 31 is used for the output of the motor power, generating power through rotation to drive components such as the impeller in the fan volute to work. The output shaft 31 is assembled on the connecting steel plate 5 and is used to connect with the fan volute 2, ensuring a firm connection between the exhaust motor 3 and the fan volute 2, so that the power of the exhaust motor 3 can be efficiently transmitted into the fan volute 2.

[0034] The connecting steel plate 5 serves as a bridge between the motor output shaft 31 of the motor and the blower volute 2, playing a role in fixing and supporting. It not only ensures the connection strength between the exhaust fan motor 3 and the blower volute 2, but also ensures the stability and reliability of the exhaust fan motor 3 during operation. Further, a support member 51 for supporting the exhaust fan motor 3 is installed on the connecting steel plate 5. The connecting steel plate 5 ensures that the exhaust fan motor 3 will not be displaced or tilted due to vibration or external forces during operation, effectively dispersing the load generated by the exhaust fan motor 3 and reducing the pressure on the connecting steel plate 5 and the blower volute 2, thereby extending the service life of the entire device.

[0035] In this embodiment, the exhaust fan motor 3 and the support member 51 are fixed by bolts, which is convenient for installation and disassembly and facilitates maintenance or replacement by the operator.

[0036] Among them, an exhaust device further includes a control system, which is electrically connected to the exhaust fan motor 3. The control system realizes the real-time monitoring and control of the operating state of the exhaust fan motor 3 and the operating parameters of the device, ensuring the normal operation and efficient work of the entire exhaust device.

[0037] As described above, the above is only the specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the content described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention will be included in the scope of the claims.

Claims

1. An exhaust device, characterized in that: The invention comprises an exhaust chamber body (1), a fan volute (2) and an exhaust motor (3); one side of the exhaust chamber body (1) is connected to the exhaust motor (3) via the fan volute (2), and the other side of the exhaust chamber body (1) is provided with an air inlet (4) for collecting water mist; the fan volute (2) comprises two connecting plates (21) and an arc plate (22), the arc plate (22) is located between the two connecting plates (21), and an exhaust structure (221) is provided on the arc plate (22).

2. An exhaust device according to claim 1, characterized in that: The arc-shaped plate (22) is provided with a plurality of water return holes (222), and the plurality of water return holes (222) are arranged on a side away from the exhaust structure (221).

3. An exhaust device according to claim 2, characterized in that: At least three water return holes (222) are provided, and the three water return holes (222) are arranged at equal intervals on the arc-shaped plate (22).

4. The exhaust device according to claim 1, characterized in that: The two connecting plates (21) are respectively provided with a first through hole (211) and a second through hole (212); the first through hole (211) is connected to the exhaust chamber body (1), and the second through hole (212) is equipped with a connecting steel plate (5) for mounting an exhaust motor (3).

5. The exhaust device according to claim 1, characterized in that: The exhaust structure (221) comprises an exhaust pipe (221-1) and a guide plate (221-2); the guide plate (221-2) is smoothly connected to the outer connection of the arc plate (22); and the exhaust pipe (221-1) is connected to the arc plate (22) via the guide plate (221-2).

6. An exhaust device according to claim 5, characterized in that: The exhaust pipe (221-1) is in communication with the fan volute (2).

7. An exhaust device according to claim 4, characterized in that: The exhaust motor (3) is provided with an output shaft (31); the output shaft (31) is mounted on a connecting steel plate (5) and is used to be connected to a fan volute (2).

8. The exhaust device according to claim 4, characterized in that: A support member (51) for supporting the exhaust motor (3) is mounted on the connecting steel plate (5).

9. An exhaust device according to claim 8, characterized in that: The exhaust motor (3) and the support member (51) are fixed by bolts.

10. The exhaust device according to claim 1, characterized in that: It also includes a control system, which is electrically connected to the exhaust motor (3).

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