Air exhaust device suitable for temporary air pipe on construction site

Abstract

The utility model discloses an exhaust device suitable for a temporary air pipe on a construction site, which comprises a shell, and an air pipe interface, a filter box, a first pipeline, a Roots blower, a second pipeline, an aeration pipeline, an aeration tank and an exhaust fan which are positioned in the shell and are communicated in sequence, and the air pipe interface and the exhaust fan are exposed out of the shell; a filter screen or a filter bag is arranged in the filter box, the aeration tank covers part of the second pipeline and the aeration pipeline, and the aeration tank is filled with liquid covering the aeration pipeline. The device can be connected with a temporary air pipe arranged on a construction site, the purpose of improving the air quality of the construction site is achieved, pollution or gathering of harmful gas is avoided, and construction safety is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of building mechanical and electrical installation engineering, in particular to an exhaust device suitable for temporary air ducts on construction sites. Background Art

[0002] When the air quality of the working environment at the construction site is poor, it affects the safe construction of the construction workers. In particular, when dust and dangerous gases appear at the construction site, conventional fans cannot safely discharge the dust and dangerous gases. Instead, they cause accumulation within a certain range, aggravating the dangerous environment at the construction site. Therefore, it is necessary to exhaust the construction site by setting up temporary air ducts on site. For this purpose, how to set up an exhaust device and connect it to the temporary air duct to improve the air quality at the construction site has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0003] The purpose of the utility model is to provide an exhaust device suitable for temporary air ducts on construction sites to solve the above problems.

[0004] In order to solve the above technical problems, the technical solution provided by the utility model is: an exhaust device suitable for temporary air ducts at construction sites, comprising:

[0005] case;

[0006] An air duct interface is arranged on the shell, wherein the air duct interface is partially located inside the shell and partially located outside the shell;

[0007] A static pressure box is arranged in the housing and connected to the air duct interface;

[0008] A filter box is arranged in the housing and connected to the static pressure box, wherein a filter screen or a filter bag is arranged in the filter box;

[0009] A first pipe is arranged in the housing and connected to the filter box;

[0010] A Roots blower is arranged in the housing and connected to the first pipe;

[0011] A second pipeline is arranged in the housing and connected to the Roots blower;

[0012] Aeration pipes, which are in multiple numbers, are arranged in the shell and are connected to the second pipe;

[0013] an aeration tank, disposed in the shell and covering a portion of the second pipe and the aeration pipe, wherein the aeration tank is filled with liquid covering the aeration pipe;

[0014] An exhaust fan is arranged in the shell near the aeration tank, and the exhaust fan is exposed from the shell.

[0015] Furthermore, the utility model provides an exhaust device suitable for a temporary air duct at a construction site, and a blower inspection door is provided on the housing close to the Roots blower.

[0016] Furthermore, the utility model provides an exhaust device suitable for a temporary air duct at a construction site, and a filter maintenance door is provided on the shell near the filter box.

[0017] Furthermore, the utility model provides an exhaust device suitable for a temporary air duct at a construction site, wherein the number of the air duct interface is more than one.

[0018] Furthermore, the utility model provides an exhaust device suitable for temporary air ducts at construction sites, wherein the aeration pipe includes a vertical section and a horizontal section, the vertical section is vertically connected below the second pipe, and the horizontal section is horizontally laid in the aeration tank.

[0019] Furthermore, the utility model provides an exhaust device suitable for temporary air ducts at construction sites, wherein a plurality of aeration holes are evenly distributed upward on the transverse section of each aeration duct.

[0020] Furthermore, the utility model provides an exhaust device suitable for a temporary air duct at a construction site, wherein the liquid is water or water with a chemical reaction reagent added thereto.

[0021] Furthermore, the utility model provides an exhaust device suitable for a temporary air duct at a construction site, wherein the shell is in the shape of a rectangular parallelepiped.

[0022] Furthermore, the utility model provides an exhaust device suitable for a temporary air duct at a construction site, wherein the number of exhaust fans is two.

[0023] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0024] The utility model provides an exhaust device suitable for temporary air ducts on construction sites. The exhaust device is connected to the temporary air duct arranged on the construction site through an air duct interface, and the Roots blower and the exhaust fan are started. The air flow in the temporary air duct is transported to the static pressure box through the air duct interface for static pressure noise reduction treatment, and is filtered for dust through the filter box. The Roots blower is sucked into the Roots blower through a first pipe. The Roots blower purifies the air flow carrying dust and dangerous gases in the liquid of the aeration tank through a second pipe and an aeration pipe by dissolving, chemically reacting, etc. The purified air is discharged to the construction site through the exhaust fan, so as to achieve the purpose of improving the air quality on the construction site, avoid pollution or the accumulation of harmful gases, and ensure construction safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1It is a three-dimensional structural schematic diagram of an exhaust device suitable for temporary air ducts at construction sites from one perspective;

[0026] Figure 2 It is a schematic diagram of the internal structure of the exhaust device suitable for temporary air ducts at construction sites;

[0027] Figure 3 It is a schematic diagram of the internal structure of the filter box;

[0028] Figure 4 It is a structural diagram of the layout of the second pipeline, aeration pipeline and exhaust fan;

[0029] Figure 5 It is a three-dimensional structural schematic diagram of an exhaust device suitable for temporary air ducts at construction sites from another perspective;

[0030] As shown in the figure:

[0031] 100. Exhaust device, 101. Shell, 102. Air duct interface, 103. Static pressure box, 104. Filter box, 105. First pipeline, 106. Secondary fan, 107. Second pipeline, 108. Aeration pipeline, 109. Aeration tank, 110. Exhaust fan, 111. Fan maintenance door, 112. Filter maintenance door. DETAILED DESCRIPTION

[0032] The utility model is described in detail below in conjunction with the accompanying drawings: According to the following description, the advantages and features of the utility model will be more clearly understood. It should be noted that the accompanying drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the utility model.

[0033] Please refer to Figures 1 to 5 The embodiment of the utility model provides an exhaust device 100 suitable for a temporary air duct at a construction site, comprising a housing 101, an air duct interface 102, a static pressure box 103, a filter box 104, a first pipeline 105, a Roots blower 106, a second pipeline 107, an aeration pipeline 108, an aeration tank 109 and an exhaust fan 110, wherein:

[0034] Shell 101; wherein the shell 101 may be in the shape of a cuboid, which is convenient for overall transportation.

[0035] The air duct interface 102 is provided on the housing 101, and part of the air duct interface 102 is located inside the housing 101 and part of the air duct interface 102 is located outside the housing 101. There are more than one air duct interface 102, and four air duct interfaces 102 are shown in the figure. Each air duct interface 102 can be connected to a temporary air duct arranged at the construction site. In order to achieve a sealed connection, the air duct interface 102 is a tubular body that matches the temporary air duct.

[0036] The static pressure box 103 is arranged in the housing 101 and is connected to the air duct interface 102. The static pressure box 103 is a necessary accessory of the air supply system to reduce dynamic pressure, increase static pressure, stabilize airflow and reduce airflow vibration, which can make the air supply effect more ideal. The static pressure box 103 is a device that can allow airflow to pass through and effectively prevent or weaken the propagation of sound energy outward. That is, the static pressure box 103 has the function of static pressure and noise reduction on the airflow.

[0037] The filter box 104 is arranged in the housing 101 and connected to the static pressure box 103. A filter screen or a filter bag is arranged in the filter box 104. By replacing the filter screen or the filter bag, the filtering effect of the air can be improved, so that dust and other particles are collected in the filter screen or the filter bag, and the first purification of the air flow is achieved.

[0038] The first pipe 105 is disposed in the housing 101 and is connected to the filter box 104 .

[0039] The Roots blower 106 is disposed in the housing 101 and is connected to the first pipe 105 .

[0040] The second pipe 107 is disposed in the housing 101 and is connected to the Roots blower 106. At this time, the first pipe 105 serves as an air inlet pipe of the Roots blower 106, and the second pipe 107 serves as an air outlet pipe of the Roots blower 106.

[0041] There are multiple aeration pipes 108, which are arranged in the housing 101 and connected to the second pipe 107. The aeration pipe 108 includes a vertical section and a horizontal section. The vertical section of the aeration pipe 108 is connected to the bottom of the second pipe 107, and the horizontal section of the aeration pipe 108 is horizontally laid in the aeration tank 109. A plurality of aeration holes are evenly distributed upward in the horizontal section of each aeration pipe 108. Bubbles are generated in the aeration tank 109 through the aeration holes, so that the purified air continues to circulate.

[0042] The aeration tank 109 is disposed in the housing 101 and covers a portion of the second pipe 107 and the aeration pipe 108. The aeration tank 109 is filled with liquid covering the aeration pipe 108. The liquid may be water or water with a chemical reaction reagent added thereto.

[0043] The Roots blower 106 diverts the air flow to each aeration pipe 108 through the second pipe 107. The aeration pipe 108 discharges the air flow through the aeration holes thereon, and the pollutants and harmful gases in the air flow are dissolved or chemically reacted by the liquid in the aeration holes 109 to purify the air flow, that is, the air flow is purified for the second time.

[0044] An exhaust fan 110 is disposed in the housing 101 close to the aeration tank 109 , and the exhaust fan 110 is exposed from the housing 101 .

[0045] Please refer to Figure 2 The exhaust device 100 suitable for temporary air ducts on construction sites provided by the embodiment of the utility model is connected to the temporary air duct arranged on the construction site through the air duct interface 102, and the Roots blower 106 and the exhaust fan 110 are started. The air flow in the temporary air duct is transported to the static pressure box 103 through the air duct interface 102 for static pressure noise reduction treatment, and is filtered by the filter box 104. The air is sucked into the Roots blower 106 through the first pipe 105. The Roots blower 106 purifies the air flow carrying dust and dangerous gases in the liquid of the aeration tank 109 through the second pipe 107 and the aeration pipe 108 by dissolution, chemical reaction, etc. The purified air is discharged to the construction site through the exhaust fan 110, so as to achieve the purpose of improving the air quality at the construction site, avoid pollution, dust or the accumulation of harmful gases, and ensure construction safety.

[0046] The exhaust device 100 suitable for temporary air ducts at construction sites provided in the embodiment of the utility model performs a first purification on the air flow passing through the filter box 104, and performs a second purification on the air flow passing through the aeration pipe 108 and the aeration tank 109, thereby improving the air purification capability, improving the air quality flowing through the temporary air duct, and reducing the harm of air pollution to construction workers.

[0047] Please refer to Figure 5 In order to inspect and repair the Roots blower 106, the exhaust device 100 suitable for temporary air ducts at construction sites provided by the embodiment of the utility model is provided with a blower inspection door 111 on the housing 101 close to the Roots blower 106. The Roots blower 106 is inspected and repaired by opening the blower inspection door 111. Of course, in order to facilitate starting and shutting down the Roots blower 106, a control switch connected to the Roots blower 106 can also be provided on the housing 101.

[0048] Please refer to Figure 1 to Figure 2 In order to facilitate maintenance of the filter box 104, the exhaust device 100 for temporary air ducts at construction sites provided by the utility model embodiment is provided with a filter maintenance door 112 on the housing 101 near the filter box 104. Through the filter maintenance door 112, the filter screen or filter bag in the filter box 104 can be replaced and maintained to improve its filtering effect.

[0049] Please refer to Figure 2 , Figure 4 and Figure 5In order to improve the exhaust capacity, the exhaust device 100 suitable for temporary air ducts at construction sites provided by the utility model embodiment has two exhaust fans 110. In order to conveniently open and close the exhaust fans 110, a switch connected to the exhaust fans 110 may also be provided on the housing 101.

[0050] The present utility model is not limited to the above-mentioned specific implementation modes. Obviously, the above-mentioned embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the described embodiments of the present utility model belong to the scope of protection of the present utility model. Those skilled in the art can make other levels of modifications and changes to the present utility model. In this way, if these modifications and changes of the present utility model fall within the scope of the claims of the present utility model, the present utility model is also intended to include these changes and changes.

Claims

1. An exhaust device suitable for temporary air ducts at construction sites, characterized in that: include: case; An air duct interface is arranged on the shell, wherein the air duct interface is partially located inside the shell and partially located outside the shell; A static pressure box is arranged in the housing and connected to the air duct interface; A filter box is arranged in the housing and connected to the static pressure box, wherein a filter screen or a filter bag is arranged in the filter box; A first pipe is arranged in the housing and connected to the filter box; A Roots blower is arranged in the housing and connected to the first pipe; A second pipeline is arranged in the housing and connected to the Roots blower; Aeration pipes, which are in multiple numbers, are arranged in the shell and are connected to the second pipe; an aeration tank, disposed in the shell and covering a portion of the second pipe and the aeration pipe, wherein the aeration tank is filled with liquid covering the aeration pipe; An exhaust fan is arranged in the shell near the aeration tank, and the exhaust fan is exposed from the shell.

2. The exhaust device suitable for temporary air ducts at construction sites according to claim 1 is characterized in that: A blower inspection door is arranged on the housing close to the Roots blower.

3. The exhaust device suitable for temporary air ducts at construction sites according to claim 1, characterized in that: A filter maintenance door is arranged on the shell body close to the filter box.

4. The exhaust device suitable for temporary air ducts at construction sites according to claim 1, characterized in that: There is more than one air duct interface.

5. The exhaust device suitable for temporary air ducts at construction sites according to claim 1, characterized in that: The aeration pipeline comprises a vertical section and a transverse section, wherein the vertical section is vertically connected to the lower part of the second pipeline, and the transverse section is horizontally laid in the aeration tank.

6. The exhaust device suitable for temporary air ducts at construction sites according to claim 5, characterized in that: A plurality of aeration holes are evenly distributed upwards in the transverse section of each aeration pipeline.

7. The exhaust device suitable for temporary air ducts at construction sites according to claim 1, characterized in that: The liquid is water or water with chemical reaction reagent added.

8. The exhaust device suitable for temporary air ducts at construction sites according to claim 1, characterized in that: The shell is in the shape of a cuboid.

9. The exhaust device suitable for temporary air ducts at construction sites according to claim 1, characterized in that: There are two exhaust fans.

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