CN217423514U - A long-distance multi-stage transport system for pollutant targeting with adjustable airflow direction - Google Patents

Abstract

The utility model discloses a long-distance multi-level transportation system for pollutant targeting with adjustable airflow direction, which comprises a long-distance air supply device and an air exhaust device arranged in a building, and also includes a mobile relay air supply device; The long-distance air supply device is used to deliver airflow into the building; the mobile relay air supply device is used to deliver the captured polluted airflow to the exhaust device; the exhaust device is used to discharge the captured polluted airflow out of the building. . The utility model changes the conveying direction of the airflow in the building by rationally arranging the component structure, especially by arranging single or multiple angle-adjustable mobile relay air supply devices, and achieves the effect of inducing the polluted airflow to diffuse to the discharge port.

Description

A long-distance multi-stage transport system for pollutant targeting with adjustable airflow direction

technical field

The utility model belongs to the technical field of control of gaseous pollutants in large spaces, in particular to a long-distance multi-stage transportation system for targeting pollutants with adjustable airflow direction.

Background technique

At present, industrial plants such as welding plants tend to be larger and larger, and the pollution sources in these plants are characterized by a large number and irregular locations. Comprehensive ventilation is to reduce the concentration of harmful gases in the entire workshop by introducing fresh air, and then discharge the diluted harmful gases out of the workshop through the exhaust port. This method has the disadvantages of poor ventilation efficiency and high energy consumption. Therefore, most enterprises have Local ventilation is used to control pollutants in the workshop, and the local exhaust hood has become the most commonly used local ventilation device. Local exhaust hoods often need to be installed close to the pollutants to have a better control effect. However, in many production processes, due to the limitations of plant space and process operations, it is difficult to install the exhaust hood at the pollution source. Nearby, and it is difficult to control multiple pollution sources at the same time by using a local exhaust hood. Therefore, there is an urgent need to develop a pollutant-targeted long-distance multi-stage transport system suitable for the above-mentioned large-space factory buildings.

Utility model content

Aiming at the deficiencies of the prior art, the purpose of the present invention is to propose a long-distance multi-level transport system for pollutant targeting with adjustable airflow direction, so as to solve the problem of the local exhaust device in the prior art due to the limited location. This results in the inability to transport pollutants over long distances.

In order to achieve the above-mentioned purpose, the technical scheme adopted by the present utility model includes:

A pollutant-targeting long-distance multi-stage transportation system with adjustable airflow direction, comprising a long-distance air supply device and an air exhaust device arranged in a building, and a mobile relay air supply device;

The remote air supply device includes a first outer casing provided with an air supply cavity, a blower is arranged in the air supply cavity, and both ends of the first outer casing are respectively arranged to communicate with the air supply cavity the first air inlet and the air supply outlet, the first air inlet is communicated with the main air inlet opened at the lower part of the first side wall of the building;

The air exhaust device is arranged on the upper part of the second side wall of the building, the second side wall of the building is arranged opposite to the first side wall of the building, and each air exhaust device corresponds to one or more mobile relays for air supply The air exhaust device includes an air exhaust duct, and an air exhaust hood with an air outlet facing downward is connected to the air exhaust duct;

The long-distance air supply device is used for conveying airflow into the building; the mobile relay air supply device is used for conveying the captured polluted airflow to the exhaust device; the exhaust device is used to discharge the captured polluted airflow out of the building thing.

The utility model also has the following technical features:

Specifically, the mobile relay air supply device includes a base, a mounting box is arranged on the base, a fan assembly is arranged in the mounting box, and a second air inlet is also opened on the mounting box; the base is also vertically arranged There is a hollow lifting bracket communicated with the installation box, the upper part of the hollow lifting bracket is provided with an annular air duct communicating with it, an air duct is arranged in the annular air duct, and a gas is opened on the inner side wall of the annular air duct The spray port is provided with an annular anti-diffusion cover at one end of the inner annular surface of the annular air duct facing the air outlet.

Furthermore, a rectifying mechanism is further provided in the first outer casing at a position close to the air supply port, and the rectifying mechanism includes a porous plate and a honeycomb rectifying plate sequentially arranged along the airflow direction.

Further, universal wheels are installed on the four corners of the bottom surface of the base.

Further, the included angle between the axis of the air outlet of the exhaust hood and the horizontal direction is 30°˜60°.

Further, the included angle between the axis of the tuyere of the annular anti-diffusion cover (35) and the vertical direction is 0°˜60°.

Further, the installation box is also provided with a smoke sensor.

Compared with the prior art, the advantages of the present utility model are:

(1) The present utility model changes the conveying direction of the airflow in the building by rationally setting the component structure, especially by setting a single or multiple adjustable angle-adjustable mobile relay air supply devices, so as to induce the pollutant airflow to diffuse to the discharge port. At the same time, it reduces the attenuation rate of the airflow suction speed of the exhaust device with distance, effectively shields the ambient wind such as the inward airflow inside the building, avoids the escape of pollutants, and achieves the effect of efficiently capturing pollutants.

(2) The utility model reduces the diffusion of the air supply air flow by setting the rectification mechanism, especially the rectification effect of the honeycomb orifice plate, and can solve the problem of short conveying distance caused by power dissipation during the transportation of pollutants.

(3) The utility model is also provided with a smoke sensor for monitoring the concentration of pollutants in real time. The operator can adjust the rotational speed of the fan assembly according to the actual load, thereby moving the wind speed of the relay air supply device, and finally realizing energy saving.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification, and together with the following specific embodiments, are used to explain the present utility model, but do not constitute a limitation to the present utility model. In the attached image:

Fig. 1 is the overall structure schematic diagram of the system of the present invention;

2 is a schematic structural diagram of a mobile relay air supply device, wherein the direction of the arrow is the conveying direction of the polluted airflow;

3 is a schematic diagram of the partial structure of the mobile relay air supply device, wherein the direction of the arrow is the airflow direction in the mobile relay air supply device;

4 is a schematic diagram of the setting angle of the mobile relay air supply device;

5 is a schematic structural diagram of a rectifier mechanism;

Fig. 6 is the distribution cloud map of the polluted airflow of application example 1;

Fig. 7 is the cloud map of the pollution airflow velocity field distribution of application example 1;

FIG. 8 is a trace diagram of the contaminated air flow in Application Example 1. FIG.

The symbols in the figure are represented as:

1-remote air supply device, 2-exhaust device, 3-mobile relay air supply device, 4-rectification mechanism, 5-smoke sensor, 11-first outer casing, 21-exhaust duct, 22-exhaust hood ;31- base, 32-installation box, 33-hollow lifting bracket, 34-annular air duct, 35-annular anti-diffusion cover; 41-perforated plate, 42-honeycomb fairing plate, 111-first air inlet, 112-supply Air outlet; 311- universal wheel, 321- second air inlet, 341- gas jet.

Detailed ways

Specific embodiments of the present utility model are given below. It should be noted that the present utility model is not limited to the following specific embodiments, and all equivalent transformations made on the basis of the technical solutions of the present application all fall into the protection scope of the present utility model.

It should be noted that, all components in the present invention, unless otherwise specified, are all components that can be purchased from the market.

The terms "upper", "lower", "front", "rear", "top", "bottom", etc. used in the present invention indicate the orientation or positional relationship only for the convenience of describing the present invention and simplifying the description, rather than Indicates or implies that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and "inner" and "outer" refer to the inside and outside of the contour of the corresponding component, and the above terms should not be construed as a reference to the present invention. limit. In addition, the terms "first", "second" and other ordinal numbers are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature.

In the present utility model, unless otherwise stated, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection It can be connected or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication between the two elements or the interaction relationship between the two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Example 1

Following the above technical solutions, as shown in FIG. 1 to FIG. 5 , the present embodiment discloses a long-distance multi-stage transportation system for pollutant targeting with adjustable airflow direction, including a long-distance air supply device arranged in a building 1 and the air exhaust device 2, and also include a mobile relay air supply device 3; in this embodiment, the building includes a workshop, a factory building, and the like.

The remote air supply device 1 includes a first outer casing 11 provided with an air supply cavity, and two ends of the first outer casing 11 are respectively provided with a first air inlet 111 and an air supply port 112 communicating with the air supply cavity. The air inlet 111 is communicated with the main air inlet opened at the lower part of the first side wall of the building; the air supply cavity is provided with a blower, and under the action of the blower, the airflow entering the air supply cavity through the first air inlet 111 flows through The air supply cavity then enters the interior of the building through the air supply port 112 .

The exhaust device 2 is arranged on the upper part of the second side wall of the building, and the second side wall of the building is arranged opposite to the first side wall of the building; each exhaust device 2 corresponds to one or more mobile relay air supply devices 3; The exhaust device 2 includes an exhaust duct 21, and the exhaust duct 21 is connected with an exhaust hood 22 with an exhaust outlet facing downward;

The air blowing direction of each mobile relay air blowing device 3 is directed toward its corresponding air exhaust hood 22 .

The remote air supply device 1 is used to deliver airflow into the building; the mobile relay air supply device 3 is used to deliver the captured polluted airflow to the exhaust device 2; the exhaust device 2 is used to deliver the captured polluted airflow Evacuate the building.

In this embodiment, the remote air supply device 1 and the air exhaust device 2 are respectively arranged on the opposite first and second side walls of the building, and the mobile relay air supply device 3 is arranged on the remote air supply device 1 and the exhaust device 2, the pollution source is located between the remote air supply device 1 and the mobile relay air supply device 3. After the uniform airflow delivered by the remote air supply device 1 passes through the pollution source, it carries the pollutants emitted by the pollution source, such as The smoke and dust, etc., become polluted airflow, and then the polluted airflow is sucked and transported by the mobile relay air supply device 3, that is, the remote air supply device 1, the pollution source, the mobile relay air supply device 3 and the exhaust device 2 in this embodiment. They are arranged in sequence along the air conveying direction.

As a preferred solution of this embodiment, the structure and working method of the mobile relay air supply device 3 are similar to those of a bladeless fan, including a base 31, a mounting box 32 is arranged on the base 31, and a fan assembly is arranged in the mounting box 32, and The installation box 32 is also provided with a second air inlet 321; the base 31 is also vertically provided with a hollow lifting bracket 33 that communicates with the installation box 32, and the upper part of the hollow lifting bracket 33 is provided with an annular air duct 34 that communicates with it. An air duct is provided in the cylinder 34, a gas injection port 341 is opened on the inner side wall of the annular air cylinder 34, and an annular anti-diffusion cover 35 is provided at the end of the inner annular surface of the annular air cylinder 34 facing the air outlet.

Under the action of the fan assembly, the ambient air in the building enters the installation box 32 through the second air inlet 321, then enters the hollow lifting bracket 33 communicated with the installation box 32, enters the annular air duct 34 and is ejected through the gas injection port 341. , the direction of the ejected airflow is parallel to the axis of the tuyere of the mobile relay device 3, and the high-speed ejected airflow causes a negative pressure to be generated in the annular air duct 34, and the polluted airflow near the annular air duct 34 is sucked into the annular air duct 34, and then passes through the annular air duct 34. The anti-diffusion cover 35 is sent out to realize relay transmission of polluted airflow.

Preferably, the installation box is further provided with a conventional control unit for controlling the operation of the fan assembly, and the control unit is used for controlling the opening, closing and rotation speed of the fan assembly.

As a preferred solution of this embodiment, a rectifying mechanism 4 is further provided in the air supply cavity at a position close to the air supply port 112 . The inhaled ambient air enters the air supply cavity and is rectified by the relay rectification mechanism 4 before being discharged into the building. The first outer casing 11 above the rectifying mechanism 4 is provided with a replacement window, and a detachable cover plate is arranged on the replacement window. To replace the rectifier mechanism.

As a preferred solution of this embodiment, universal wheels 311 are installed on the four corners of the bottom surface of the base 31 . The operator can more flexibly arrange the mobile relay air supply device 3 according to the relative position of the pollution source emission point, the remote air supply device 1 and the air exhaust device 2, and the number of the relay air supply device 3 can be multiple, according to needs, A plurality of relay air supply devices 3 facing the same air exhaust hood 22 are arranged at one pollution source.

As a preferred solution of this embodiment, the included angle between the axis of the air outlet of the exhaust hood and the horizontal direction is 30° to 60°

As a preferred solution of this embodiment, the angle between the axis of the tuyere of the annular anti-diffusion cover 35 and the vertical direction is 0° to 60°. Since the universal wheel is provided under the base, the mobile relay air supply device 3 can be moved arbitrarily. For the position and adjustment angle, preferably, when it moves in the horizontal direction, the change angle of the air inlet axis of the second air inlet 321 is ±45°.

As a preferred solution of this embodiment, the installation box 32 is further provided with a smoke sensor 5 .

The use process of this embodiment is as follows:

On the opposite side walls of buildings such as workshops and workshops, one or more main air inlets/main air outlets are opened respectively, and then the installation of the remote air supply device 1 and the air exhaust device 2 is completed. position, the relative position of the remote air supply device 1 and the air exhaust device 2, select one or more mobile relay air supply devices 3, and when the pollution source emits pollutants, start the multi-level long-distance transportation pollutant system to make the pollution The material is transported to the purification device connected with the exhaust device 2 along with the air flow, and is discharged after purification.

Application example 1

In order to verify the feasibility and effectiveness of the present utility model, computational fluids simulations are carried out according to the present utility model, as shown in Figs. 6 to 8 respectively.

As can be seen from Figure 6, the pollution source emits pollutants including dust and smoke, which diffuse under the action of the air supply, but the diffusion height is very low and it is easy to turn around. The pollutants move after moving the relay air supply device 3. The direction turns to the direction of the exhaust hood 22, and moves to the vicinity of the exhaust hood 22 with the air flow of the moving relay air supply device 3, and is inhaled by the exhaust hood 22, the control effect of pollutants is better, and the collection efficiency of the exhaust hood 22 is close to 100%.

It can be seen from Figure 7 that the air velocity sent by the long-distance air supply device 1 is relatively small, and the degree of diffusion of the air supply jet is extremely small. The air flow rate generated by moving the relay air supply device 3 is relatively high, the outlet air distribution is uniform, and the spread along the process is small. Therefore, the long-distance transportation of the polluted air flow can be ensured.

It can be seen from FIG. 8 that the pollutants emitted by the pollution source are directed into the exhaust hood 22 along a predetermined trajectory under the control of the system of the present invention, which realizes the long-distance relay directional control of the pollutants, and greatly improves the pollution of the pollutants. Control effect

The preferred embodiments of the present disclosure have been described above in detail with reference to the accompanying drawings. However, the present disclosure is not limited to the specific details of the above-mentioned embodiments. Various simple modifications can be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure. These simple modifications all fall within the protection scope of the present disclosure.

In addition, it should be noted that the various specific technical features described in the above-mentioned specific embodiments can be combined in any suitable manner unless they are inconsistent. In order to avoid unnecessary repetition, the present disclosure provides The combination method will not be specified otherwise. In addition, the various embodiments disclosed in the present disclosure can also be combined arbitrarily, as long as they do not violate the spirit of the present disclosure, they should also be regarded as the content of the utility model disclosed in the present disclosure.

Claims (7)

1. a pollutant targeting long-distance multi-stage transportation system with adjustable airflow direction, comprising the long-distance air supply device (1) and the air exhaust device (2) that are arranged in the building, it is characterized in that, also comprises Mobile relay air supply device (3); The long-distance air supply device (1) includes a first outer casing (11) provided with an air supply cavity, and two ends of the first outer casing (11) are respectively provided with a connection with the air supply cavity. a first air inlet (111) and an air supply port (112), the first air inlet (111) is communicated with the main air inlet opened at the lower part of the first side wall of the building, and a blower is provided in the air supply cavity; The air exhaust device (2) is arranged on the upper part of the second side wall of the building, the second side wall of the building is arranged opposite to the first side wall of the building, and each air exhaust device (2) corresponds to one or more A plurality of mobile relay air supply devices (3); the air exhaust device (2) includes an air exhaust duct (21), and an air exhaust hood (22) with an air outlet facing downward is connected to the air exhaust duct (21). ; The long-distance air supply device (1) is used for conveying air flow into the building; the mobile relay air supply device (3) is used for conveying the captured polluted air flow to the air exhaust device (2); the air exhaust device (2) ) is used to discharge the captured air of pollutants out of the building. 2. The pollutant targeting long-distance multi-stage transportation system with adjustable airflow direction as claimed in claim 1, wherein the mobile relay air supply device (3) comprises a base (31), and the base ( 31) An installation box (32) is arranged on the installation box (32), a fan assembly is arranged in the installation box (32), and a second air inlet (321) is also opened on the installation box (32); the base (31) is also vertical A hollow lifting bracket (33) communicated with the installation box (32) is provided, an annular air duct (34) communicated with the upper part of the hollow lifting bracket (33) is provided, and the annular air duct (34) is An air duct is provided, a gas injection port (341) is opened on the inner side wall of the annular air duct (34), and an annular anti-diffusion cover (35) is provided at the end of the inner annular surface of the annular air duct (34) facing the air outlet. ). 3. The pollutant-targeting long-distance multi-stage transportation system with adjustable airflow direction according to claim 2, characterized in that, a rectifying mechanism is also provided in the air supply cavity at a position close to the air supply port (112). (4), the rectifying mechanism (4) includes a perforated plate (41) and a honeycomb rectifying plate (42) sequentially arranged along the airflow direction. The long-distance multi-stage transportation system for pollutant targeting with adjustable airflow direction according to claim 2, characterized in that, universal wheels (311) are installed on the four corners of the bottom surface of the base (31). 5. The long-distance multi-stage transportation system for pollutant targeting with adjustable airflow direction as claimed in claim 1, wherein the angle between the axis of the air outlet of the exhaust hood (22) and the horizontal direction is 30° ~60°. 6. The long-distance multi-stage transportation system for pollutant targeting with adjustable airflow direction according to claim 2, wherein the angle between the axis of the tuyere of the annular anti-diffusion cover (35) and the vertical direction is 0°～60°. 7 . The long-distance multi-stage transportation system for pollutant targeting with adjustable airflow direction according to claim 2 , wherein a smoke sensor ( 5 ) is further provided on the installation box ( 32 ). 8 .

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