CN201191054Y - Postposition type spraying and humidifying blower fan - Google Patents

Abstract

The utility model discloses a postposition atomization humidification fan, comprising a wind tube in which a motor, a blade wheel and a water eliminator are arranged in turn, wherein in the wind tube, a spraying device is provided between the blade wheel and the water eliminator, which comprises an annular drencher pipe, the drencher pipe is connected with a high pressure water pump outside the wind tube via a water inlet tube, the circumference of the annular drencher tube is uniformly provided with a plurality of nozzles, and the nozzles communicated with the drencher tube, whose ejection directions are toward the blade wheel. The atomization humidification fan combines air supply technology and air conditioning humidification technology. Compared with traditional spray chambers and atomization humidification fans, the postposition atomization humidification fan can improve heat and moisture transfer efficiency, having simple structure, water-saving property, power-saving property and energy-saving property.

Description

A post-mounted spray humidification fan

technical field

The utility model belongs to the technical field of air conditioning and refrigeration, and relates to a spray humidification device, in particular to a post-mounted spray humidification fan.

Background technique

At present, the humidification methods used to adjust the air mainly include: 1) spray room humidification system, 2) spray axial flow fan humidification system. The spray room humidification system can realize a variety of air treatment processes and has a certain ability to purify the air. However, the heat and moisture exchange of this system is only carried out between the spray pipe and the water baffle, and the distance is short, the resistance is large, and the energy consumption is high. High, the initial investment is large, and the workload of daily maintenance and management is heavy. The spray axial flow fan humidification system sends water to the fan, and the water and the air flow are in contact at the fan end, and can continue throughout the entire air duct transportation process. The contact time is long, and the mist particles generated are fine, which greatly improves the air contact. The contact area has a high heat and moisture exchange efficiency, which saves water and electricity to a certain extent, and reduces the initial investment. However, the spray axial flow fan has the following problems: only relying on the rotation and cutting of the blades of the fan, the water is atomized, the water vapor is high, and the water leakage is serious; the air flow and the water flow are mixed at the impeller of the spray fan to form a gas-liquid two-phase flow, A large number of fog droplets increase the viscous resistance of the air flow, resulting in a reduction in the air volume, wind pressure, and fan efficiency of the fan compared with the normal air supply state.

Contents of the invention

The purpose of this utility model is to provide a rear-mounted spray humidification fan, which uses the principle of secondary atomization and countercurrent cutting to further improve the atomization degree of water, reduce water vapor, eliminate water leakage, and increase the air supply volume, wind pressure and fan efficiency.

The technical solution adopted by the utility model is that the rear-mounted spray humidification fan includes an air cylinder, and in the air cylinder, a motor, an impeller driven by the motor, and a water baffle provided at the air outlet of the air cylinder are arranged in sequence according to the air inlet direction , in the air duct, a spraying device is also provided between the impeller and the water baffle, the spraying device includes an annular water spray pipe, the water spray pipe is connected with the high-pressure water pump outside the air duct through the water inlet pipe, and the circumference of the annular water spray pipe A plurality of nozzles are evenly distributed, and the nozzles are communicated with the water spray pipes and their spraying direction is towards the impeller.

The utility model is also characterized in that,

The circumference of the water spray pipe is fixed with the inner wall of the air cylinder by a plurality of pull rods.

The lower part of the water retaining plate is provided with a water return pipe.

The axis of the motor coincides with the axis of the blower.

The utility model has the following advantages:

1. The heat and moisture exchange is not only carried out between the spray pipe and the water baffle, but also interacts with the strong wind generated by the fan, mixes it many times, and repeatedly atomizes, so the heat and moisture exchange efficiency is high;

2. Using the principle of countercurrent cutting, the water is atomized twice, instead of only relying on the rotating blades of the fan to atomize the water, the water vapor is relatively low, and water leakage is avoided.

3. Changed the mixing method of air flow and water flow at the impeller of the spray fan to form a high-humidity foggy air flow with sufficient gas-liquid mixing. efficiency.

4. Using the technology of organic combination of air supply and air-conditioning humidification, a high-efficiency rear-mounted spray humidification fan that not only utilizes the existing mature high-efficiency fans, but also has essential differences from traditional air-conditioning methods is proposed. Compared with the traditional spray room and spray humidification fan, it has higher heat and moisture exchange efficiency, saving water, electricity and energy.

5. While providing cooling air for buildings, it can also provide humidified air for quick and easy air humidification. Humidification, cooling, and improvement of the working environment can be achieved with low investment and low operating costs.

Description of drawings

Figure 1 is a schematic structural view of an embodiment of the spray humidification fan of the present invention; wherein, a is a front view, and b is a left view.

In the figure, 1. Motor, 2. Impeller, 3. Inlet pipe, 4. Water spray pipe, 5. Nozzle, 6. Pull rod, 7. Water baffle, 8. Air cylinder, 9. Motor bracket, 10. Return pipe .

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

The spray humidification blower of the present utility model, as shown in Figure 1, in the air cylinder 8, according to the direction of the wind, there are arranged in turn: a motor 1, supported by the motor bracket 9, to ensure that the axis of the motor 1 coincides with the axis of the air cylinder 8 The impeller 2 fixedly connected with the motor shaft is driven by the motor 1; the water baffle 7 provided at the air outlet of the air duct 8, and the bottom of the water baffle 7 is provided with a return pipe 10; in the air duct 8, the water baffle 7 A spraying device is arranged between the impeller and the impeller 2, the spraying device is an annular water spray pipe 4, the annular water spray pipe 4 is fixed on the inner wall of the fan cylinder 8 through a pull rod 6, and the water spray pipe 4 is connected with one end of the water inlet pipe 3 , the other end of the water inlet pipe 3 protrudes from the top of the air cylinder 8 and is connected with the high-pressure water pump. A plurality of nozzles 5 are evenly distributed on the circumference of the water spray pipe 4, and the nozzles 5 communicate with the water spray pipe 4, and the direction of the spray outlet is towards impeller 2.

Working process of the present utility model:

When the motor 1 is powered on, the motor shaft of the motor 1 starts to rotate at a high speed, and at the same time drives the impeller 2 fixed on the motor shaft to rotate at a high speed. The high-speed rotating impeller 2 blows the air to the air outlet of the air cylinder 8. At this time, a vacuum is formed behind the impeller 2, and the air enters the air cylinder 8 from the air inlet of the air cylinder 8 under the action of the pressure difference. An airflow flowing from the air inlet to the air outlet is formed. Turn on the high-pressure water pump, and after the water is pressurized by the high-pressure water pump, high-pressure water with pressure is formed. The high-pressure water in the water spray pipe 4 flows along the annular pipe at high speed, generating centrifugal force, which acts on the water entering the nozzle 5, making the water stretch into a thin film on its surface, and move toward the outlet of the nozzle 5 at a continuously increasing speed. Finally, it is sprayed out at a high speed from the nozzle 5 water outlet.

The water sprayed through the water outlet of the nozzle 5 is sprayed to the impeller 2 against the wind to realize the first atomization; during the high-speed rotation of the impeller 2, a lift effect is generated, and under the action of strong wind, the small water droplets that have not been atomized further Form a "water curtain" to achieve the second atomization. The "water curtain" interacts with the strong wind, mixes and atomizes repeatedly, and the atomized fine water droplets are mixed with the airflow to form a high-humidity foggy air flow, which flows to the air outlet of the air cylinder 8. The motor 1 drives the impeller 2 to run continuously, and the nozzle 5 continuously provides water mist, realizing and completing the whole process of conveying air and treating air.

Part of the non-atomized water reaches the outlet of the blower 8 along with the airflow, meets the water retaining plate 7, and adheres to the side wall of the water retaining plate 7. Then, under the action of gravity, it flows down along the side wall of the water retaining plate 7, enters the return pipe 10 provided at the bottom of the water retaining plate 7, and flows back to the water supply pool through the return pipe 10 for recycling.

Claims (4)

1. rear-mounted spraying humidification blower fan, comprise air duct (8), in the air duct (8), be disposed with motor (1) by the air intake direction, impeller (2) by motor (1) driving, and the water fender (7) of air duct (8) air outlet place setting, it is characterized in that, in the air duct (8), also be provided with sprayer unit between impeller (2) and the water fender (7), described sprayer unit comprises an annular spray pipe (4), described sparge pipe (4) is connected by the outside high-pressure hydraulic pump of water inlet pipe (3) and air duct (8), be evenly equipped with a plurality of nozzles (5) on the circumference of annular spray pipe (4), described nozzle (5) communicate with sparge pipe (4) and its injection direction towards impeller (2).

2. according to the described rear-mounted spraying humidification blower fan of claim 1, it is characterized in that, fix by a plurality of pull bars (6) and the inwall of air duct (8) on the circumference of described sparge pipe (4).

3. according to the described rear-mounted spraying humidification blower fan of claim 1, it is characterized in that the bottom of described water fender (7) is provided with return pipe (10).

4. according to claim 1 or 2 described rear-mounted spraying humidification blower fans, it is characterized in that the axle center of the axle center of described motor (1) and air duct (8) coincides.

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