CN211625598U - Octagonal low-noise high-pressure air exhauster - Google Patents

Abstract

The utility model belongs to the technical field of ventilation equipment, and in particular relates to an octagonal low-noise high-pressure air exhauster, which comprises a case that is externally hung on a wall, an air inlet arranged on one side of the case, and an outlet arranged on the other side of the case. The air outlet is a fan arranged in the chassis, characterized in that the chassis includes a square air inlet box and an octagonal air outlet box, and the air inlet is composed of a group of sub air inlets evenly arranged on one side of the square air inlet box. It consists of a group of sub-air outlets evenly arranged on one side of the octagonal air outlet box. A group of sub-air inlets and a group of sub-air outlets are arranged opposite to each other. The fan is a centrifugal fan, and the fan is connected with an intelligent control device. The utility model adopts an octagonal design, which is more user-friendly and prevents reverse air intake and rainwater; the centrifugal fan is adopted instead of the axial flow main engine, which mainly reduces noise, increases the exhaust pressure, increases the number of replacement ventilation, and increases the exhaust efficiency.

Description

Octagonal low noise high pressure exhaust fan

technical field

The utility model belongs to the technical field of ventilation equipment, in particular to an octagonal low-noise high-pressure air exhauster.

Background technique

The large warehouses of subway depots (operation warehouses, maintenance warehouses, parking train inspection warehouses, factory repair warehouses, car body warehouses, bogie workshops, etc.) are all equipped with ventilation systems, and roof fans or ventilation ducts are usually used for ventilation and temperature adjustment. , smoke and toxic gases, with the improvement of production technology, the production capacity continues to expand, and the demand for large warehouses for subway depots is also increasing, with a height of 12-16 meters and a width of more than 100 meters. become common. In these large warehouses of subway depots, the staff are located below the height of 2-3 meters from the ground. Most equipment and items are also arranged in this height range, and the air resistance is large. Existing ventilation and ventilation systems, such as roof fans or ventilation ducts, cannot achieve sufficient ventilation and become a dead angle for ventilation and ventilation. Especially in the high temperature season, due to the poor ventilation effect, the smoke and dust cannot be discharged in time, the temperature cannot be adjusted, the working environment is very bad, and the operators cannot work normally. The existing ventilation and ventilation system adopts the traditional ordinary exhaust fan, which is noisy, has no waterproof and rainproof technology, and is likely to cause a short circuit of the fan and cannot operate normally; the ordinary exhaust fan is prone to reverse air intake, which greatly reduces the exhaust air. efficiency.

SUMMARY OF THE INVENTION

The purpose of the utility model is to provide an octagonal low-noise high-pressure air exhauster with space for exhausting, high exhausting efficiency, waterproof, rainproof, preventing reverse fan entry, low noise, preventing interference and reducing noise pollution.

The purpose of this utility model is to realize through following technical scheme:

The octagonal low-noise high-pressure air exhauster of the utility model comprises a case that is externally hung on the wall, an air inlet arranged on one side of the case, and an air outlet arranged on the other side of the case, which is arranged in the case The fan is characterized in that the case includes a square air inlet box, an octagonal air outlet box connected with the square air inlet box, and the air inlets are uniformly arranged on the square air inlet box. A group of sub-air inlets on one side is composed of a group of sub-air outlets evenly arranged on one side of the octagonal air outlet box. The group of sub-air inlets and a group of sub-outlets The tuyere is arranged on the opposite side, the fan is a centrifugal fan, and the fan is connected with the intelligent control device.

The sub-air inlet or sub-air outlet is a rectangular hole or a circular hole.

The four side panels of the square air inlet box are provided with muffler cotton and muffler orifices.

The advantages of the utility model:

(1) The octagonal low-noise high-pressure air exhauster of the present utility model adopts an octagonal design, which is more user-friendly and prevents reverse wind and rainwater;

(2) The octagonal low-noise high-pressure air exhauster of the present utility model adopts a centrifugal fan instead of an axial flow main engine, mainly to reduce noise, increase the exhaust pressure, increase the number of displacement ventilation, and increase the exhaust efficiency;

(3) The octagonal low-noise high-pressure exhaust fan of the present utility model has low noise. The four side panels have built-in muffler cotton and corresponding muffler orifices, so that the four sides form a high-efficiency muffler cavity, thereby greatly reducing the exhaust noise and making the exhaust air more efficient. The noise reaches (65-68) dB;

(4) The octagonal low-noise high-pressure air exhauster of the present utility model, the air inlet is designed as a bird-proof mesh to prevent flying objects and inhalation of other debris at the air inlet, and the design is user-friendly;

(5) The octagonal low-noise high-pressure air exhauster of the present utility model has an octagonal outboard unit, which has strong wind and rain resistance, and has a beautiful appearance;

(6) The octagonal low-noise high-pressure air exhauster of the present utility model, the external octagonal cover can be disassembled at will, which is convenient for maintaining the motor and cleaning the dust in the casing.

Description of drawings

Figure 1 is a schematic structural diagram of the utility model.

FIG. 2 is a left side view of FIG. 1 of the utility model.

Fig. 3 is the right side view of Fig. 1 of the utility model.

Detailed ways

The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1-3, the octagonal low-noise high-pressure exhaust fan of the present invention includes a case 2 that is externally hung on the wall, an air inlet 1 arranged on one side of the case 2, and an air inlet 1 arranged on the other side of the case 2. The air outlet 3 on one side, the fan 4 arranged in the case, is characterized in that the case 2 includes a square air inlet box 2-1, an octagonal shape connected to the square air inlet box 2-1. The air outlet box 2-2, the air inlet 1 is composed of a group of sub air inlets 1-1 evenly arranged on one side of the square air inlet box, and the air outlet 3 is evenly arranged on the air inlet box. The octagonal air outlet box 2-2 is composed of a group of sub-air outlets 3-1 on one side, and the group of sub-air inlets 1-1 and a group of sub-air outlets 3-1 are arranged opposite to each other, and the fan 4 It is a centrifugal fan, and the fan 4 is connected with an intelligent control device.

The sub air inlet 1-1 or the sub air outlet 3-1 is a rectangular hole or a circular hole.

The square air inlet box body 2-1 is provided with a sound-absorbing cotton 5 and a sound-absorbing orifice plate 6 in the four-side side panels.

As shown in Figures 1-3, the octagonal low-noise high-pressure air exhauster of the present utility model adopts an octagonal design for the external hanging part, which is more user-friendly, prevents reverse wind and rainwater, and has a beautiful appearance. The fan 4 in the octagonal low-noise high-pressure exhauster adopts a centrifugal fan instead of an axial flow main engine, mainly to reduce noise, increase the exhaust pressure, and increase the number of replacement ventilation. The octagonal low-noise high-pressure exhauster has built-in muffler cotton 5 and corresponding muffler orifice 6 on the four sides, so that the four sides form a high-efficiency muffler cavity, thereby greatly reducing the exhaust noise and making the exhaust noise reach (65-68) dB. Taking into account the risk of flying objects and inhaling other debris when entering the wind, the design of the air inlet 1 of the octagonal low-noise high-pressure exhaust fan is a mesh structure, which has the function of anti-bird net, which can effectively prevent flying objects and other debris at the intake. Inhale other debris, etc. The fan 4 of each octagonal low-noise high-pressure exhaust fan is connected with the intelligent control device. The octagonal low-noise high-pressure exhaust fan has an external octagonal cover that can be disassembled at will, which is convenient for maintaining the motor and cleaning the dust in the casing.

The utility model is suitable for large-scale stations, airports, warehouses, mines, and tunnel maintenance warehouses where dust is relatively large, personnel are dense, and the air circulation speed is required to be slow. , High space ventilation system with low noise.

Claims (3)

1. The utility model provides an octagon low noise high pressure exhaust fan, includes the external quick-witted case on the wall body, sets up the air intake of this quick-witted case one side, sets up the air outlet of quick-witted case opposite side, sets up the fan in the machine incasement, its characterized in that quick-witted case include square air inlet box, the octagon air-out box that is connected with this square air inlet box, the air intake by evenly arrange a set of sub-air intake of square air inlet box one side is constituteed, the air outlet by evenly arrange a set of sub-air outlet of octagon air-out box one side constitute, a set of sub-air intake and a set of sub-air outlet set up to the face, the fan be centrifugal fan, the fan be connected with intelligent control device.

2. An octagonal low-noise high-pressure air exhauster as claimed in claim 1 wherein the sub-air inlet or sub-air outlet is a rectangular hole or a circular hole.

3. The octagonal low-noise high-pressure air exhauster as claimed in claim 1, wherein silencing cotton and silencing orifice plate are disposed in the side plates of four sides of the square air inlet box.

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