JP6880949B2 - Airflow visualization device - Google Patents

Description

The present invention relates to an airflow visualization device that visualizes an airflow in space.

Conventionally, as a method of identifying a place where air is stagnant, a place where dust is generated, or a place where air leaks in an indoor space, there is a method of directly measuring the wind speed, pressure, and direction of an air flow by a sensor. In this method, although the airflow can be grasped as a numerical value, it is measured at a point with respect to the space. For this reason, it is necessary to install a large number of sensors in a large space such as a room, and it is also necessary to devise such as hanging the sensors with a balloon.

In addition to the method using the above sensor, a method of spraying a tracer (liquid fine particles (mist) or the like) in a space and capturing an image of the tracer moving with an air flow is known (for example, Patent Documents). 1). With this method, it is not necessary to install a large number of sensors, and it is possible to visually capture the airflow.

JP-A-2002-22597

However, the above method of spraying the tracer requires a large amount of tracers in a large space such as a room, and the airflow in the depth direction also appears to overlap. It is easy to observe if there is a uniform and clear flow like a wind tunnel experiment, but if there is a different flow in the depth direction like the wind from indoor air conditioning, a fast flow, a slow flow, or a flow in a different direction Are superimposed and observed. Therefore, even in a large space such as a room, there is a demand for observing a certain cross section, that is, for spraying the tracer in a planar shape.

Further, in order to spray a large amount of tracers, an air flow for ejecting (transporting) the tracers is required. However, when observing a weak and irregular air flow such as in the vicinity of a frozen / refrigerated open showcase in a supermarket, there is a concern that the air flow to be observed will be disturbed by the ejection of the tracer and an analysis error will occur. To.

Furthermore, in the indoor space, it is necessary to pay attention to the substances used for the tracer. For example, when powder or antifreeze mist is used for the tracer, the tracer itself may remain in the room as dust or fly up to the ceiling, causing a malfunction of the fire alarm.

Here, it is conceivable to use, for example, a multi-hole tube as an instrument for spraying the tracer in a planar shape. However, if the tracer generator and the multi-hole pipe for spraying are simply connected, the spraying amount may become uneven, or the inside of the pipe may be blocked by a tracer such as powder or antifreeze mist.

In view of such a problem, the present invention can use a tracer that can spray a small amount of tracer on a surface surface with a weak force in a large space such as a room, and can use a tracer that does not generate dust, and further, it is portable. It is an object of the present invention to provide an airflow visualization device having excellent properties.

In order to solve the above problems, a typical configuration of the airflow visualization device according to the present invention is a linearly extending communication pipe, a water supply bottle connected to one end of the communication pipe, and a plurality of communication pipes provided. It is characterized by including a connection port of the above and a plurality of small ultrasonic humidifiers connected to the connection port and supplied with water from a communication pipe.

With the above configuration, fog is used as a tracer, and since it evaporates after measurement, no dust or the like remains in the space and the space is not contaminated. In addition, since spraying is performed from a plurality of small ultrasonic humidifiers provided in the communication pipe, a small amount of tracer can be sprayed in a plane shape over a large space such as a room. Moreover, since the tracer can be sprayed with a weak force without using a fan or the like, the airflow in the space is not disturbed.

As the above-mentioned compact ultrasonic humidifier, for example, a humidifier driven by a USB power source can be adopted, which makes it possible to realize a lightweight and highly portable airflow visualization device that can use a mobile battery. Therefore, with the above configuration, it is possible to visualize the airflow in a wide range by repeating the local measurement while moving in the space.

The airflow visualization device can use a PET bottle for beverages as a water supply bottle, and it is preferable that an internal screw matching the cap of the PET bottle for beverages is formed at one end of the communication pipe. With this configuration, water bottles can be easily procured locally, and transportation to the site becomes extremely easy.

The airflow visualization device may further include a removable spout component at the connection port. By combining the spout parts, it is possible to arbitrarily adjust the number and arrangement of small ultrasonic humidifiers on the communication pipe.

According to the present invention, a small amount of tracer can be sprayed in a plane with a weak force in a large space such as a room, a tracer that does not generate dust can be used, and further, it is excellent in portability. It becomes possible to provide an airflow visualization device.

It is a figure which showed the whole of the airflow visualization apparatus which concerns on embodiment of this invention. It is an enlarged view around the water supply bottle. It is a figure which showed the process of using an airflow visualization device. It is sectional drawing in the vicinity of a branch pipe. It is an exploded view of the airflow visualization device.

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in such an embodiment are merely examples for facilitating the understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are designated by the same reference numerals to omit duplicate description, and elements not directly related to the present invention are not shown. To do.

FIG. 1 is a diagram showing the entire airflow visualization device 100 according to the embodiment of the present invention. The airflow visualization device 100 is configured to be carried and used by workers as a main feature, and sprays water from a water supply bottle 102 as a tracer by atomizing it from a plurality of small ultrasonic humidifiers 104. This achieves local visualization of the airflow in space.

The communication pipe 106 is a rod-shaped flow path extending in a straight line, and supplies the water of the water supply bottle 102 to each small ultrasonic humidifier 104. The communication pipe 106 can be constructed to be lightweight by using, for example, a vinyl chloride pipe. Since the communication pipe 106 also functions as a grip portion that the worker grips by hand, it is possible to provide a grip or the like as a non-slip.

FIG. 2 is an enlarged view of the vicinity of the water supply bottle 102. The water supply bottle 102 is detachably connected to one end 108 of the communication pipe 106. In the airflow visualization device 100, a commercially available PET bottle for beverages can be used as the water supply bottle 102. Therefore, an internal screw matching the cap of the beverage PET bottle is formed at one end 108 of the communication pipe 106.

With the above configuration, the airflow visualization device 100 makes it possible to easily procure the water supply bottle 102 locally, and the transportation to the site is extremely easy. Further, in the present embodiment, the mist is sprayed from the small ultrasonic humidifier 104 as a tracer, but the above configuration makes it possible to supply a commercially available bottled water (drinking water) to the small ultrasonic humidifier 104. .. Commercially available bottled water has extremely few impurities, can spray clean mist, and is beneficial without worrying about contaminating the space.

See FIG. 1 again. A plurality of branch pipes 109 are branched from the communication pipe 106, and the plurality of small ultrasonic humidifiers 104 are used by being connected to a connection port 110 (see FIG. 5) at the tip of the branch pipe 109. The small ultrasonic humidifier 104 has a vibrator inside, applies a voltage to the vibrator to vibrate it, and uses the vibration energy to disperse water instead of a fine mist. In the present embodiment, a plurality of small ultrasonic humidifiers 104 are arranged in a straight line, and the same amount of mist is generated from each place, so that the tracer can be uniformly and planarly sprayed in the space. In the present embodiment, the small ultrasonic humidifiers 104 are arranged at equal intervals, but the intervals at the height at which the airflow is desired to be known in more detail may be narrowed.

As the compact ultrasonic humidifier 104 having the above configuration, for example, a compact and lightweight humidifier driven by a USB power supply is widely used, and thus this can be adopted. If it is a type driven by a USB power source, the popular mobile battery 112 can be used as a power source, and a lightweight and highly portable airflow visualization device 100 can be realized.

Further, since the small ultrasonic humidifier 104 is widely used on the premise that it is attached to the mouth of a PET bottle for beverages, it can be preferably used. As a result, the small ultrasonic humidifier 104 can be easily attached to the communication pipe 106 by forming a screw of the same standard as the PET bottle mouth at the connection port 110 of the branch pipe 109 (see FIG. 5). It is possible.

FIG. 3 is a diagram showing a process of using the airflow visualization device 100. FIG. 3 shows the flow of using the airflow visualization device 100 in order from FIG. 3 (a) to FIG. 3 (c).

As shown in FIG. 3A, when using the airflow visualization device 100, first, the water supply bottle 102 is connected to one end 108 of the communication pipe 106. Next, as shown in FIG. 3B, the water supply bottle 102 is raised with the communication pipe 106 turned upside down, and the water in the water supply bottle 102 flows toward the other end 114 of the communication pipe 106, and each small ultrasonic humidification method is used. Water is supplied to the vessel 104.

FIG. 4 is a cross-sectional view of the vicinity of the branch pipe 109. The small ultrasonic humidifier 104 includes a filter paper 118 for water absorption, and absorbs water by utilizing the capillary phenomenon of the filter paper 118. Further, the branch pipe 109 is provided with a weir 120 so that the filter paper 118 can easily absorb water. The weir 120 is provided so as to close the lower half of the branch pipe 109 on the side opposite to the water supply bottle 102 (see FIG. 3B).

Based on the above configuration, when water is supplied to each small ultrasonic humidifier 104 in FIG. 3B, the communication pipe 106 is provided so that water enters the upper half of the branch pipe 109 which is not blocked by the weir 120. Is tilted toward the small ultrasonic humidifier 104, and the water in the water supply bottle 102 flows. The excess water at this time collects on the other end 114 side of the communication pipe 106.

In the present embodiment, since water can be stored in the branch pipe 109 by the weir 120, water can be supplied to each small ultrasonic humidifier 104 without filling the entire communication pipe 106 with water. .. That is, it is possible to spray fog with a small amount of water. Therefore, the airflow visualization device 100 can reduce the capacity of the water supply bottle 102 and further reduce the weight. Further, the amount of water used is limited to an amount that does not reach the lowermost branch pipe 109 when it flows down to the other end 114 side of the communication pipe 106 in FIG. 3 (b), so that the amount of water used can be reduced from the joint of the branch pipe 109. There is no need to worry about water leaks.

After supplying water to each small ultrasonic humidifier 104, mist is sprayed and the air flow is observed. Then, as shown in FIG. 3C, after the measurement, the water supply bottle 102 is turned downward again to transfer the excess water in the communication pipe 106 and each small ultrasonic humidifier 104 to the water supply bottle 102. Can be recovered.

In the airflow visualization device 100 of the present embodiment described above, fog is used as a tracer, and since it evaporates after measurement, no dust or the like remains in the space, the space is not contaminated, and a fire alarm is used. There is little impact on indoor equipment such as. In addition, since spraying is performed from a plurality of small ultrasonic humidifiers 104 provided in the communication pipe 106, a small amount of tracer can be sprayed in a plane shape over a large space such as a room. Moreover, since the tracer can be sprayed with a weak force without using a fan or the like, the airflow in the space is not disturbed as compared with a large-capacity humidifier. Furthermore, because of its lightweight and concise structure, it is possible to easily repeat movement in space and local measurement, and it is possible to easily visualize the airflow even in a wide range.

FIG. 5 is an exploded view of the airflow visualization device 100. The airflow visualization device 100 can be easily disassembled. The water supply bottle 102, the small ultrasonic humidifier 104, the mobile battery 112, and the like are removable from the communication pipe 106, and the communication pipe 106 can also be disassembled into a plurality of pipes 106a and 106b. With these configurations, the airflow visualization device 100 can be transported and stored extremely easily.

In addition to the above configuration, the airflow visualization device 100 also includes a spout component 116 that closes the connection port 110. The spout component 116 is a lid of the connection port 110 used in place of the small ultrasonic humidifier 104, and is configured to be removable from the connection port 110. By combining the plurality of small ultrasonic humidifiers 104 and the spout component 116, the airflow visualization device 100 can arbitrarily adjust the number and arrangement of the small ultrasonic humidifiers 104 on the communication pipe 106.

Although preferred embodiments of the present invention have been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to such examples. It is clear that a person skilled in the art can come up with various modifications or modifications within the scope of the claims, which naturally belong to the technical scope of the present invention. Understood.

The present invention can be used as an airflow visualization device that visualizes the airflow in space.

100 ... Airflow visualization device, 102 ... Water supply bottle, 104 ... Small ultrasonic humidifier, 106 ... Communication pipe, 106a, 106b ... Disassembled communication pipe, 108 ... One end of communication pipe, 109 ... Branch pipe, 110 ... Connection port, 112 ... mobile battery, 114 ... the other end of the communication pipe, 116 ... spout parts, 118 ... filter paper, 120 ... dam

Claims (3)

A linear communication pipe and
A water bottle connected to one end of the communication pipe and
A plurality of branch pipes provided in the communication pipe and
A plurality of small ultrasonic humidifiers connected to the connection port at the tip of the branch pipe and supplied with water from the communication pipe, and
An airflow visualization device including a weir that closes about the lower half of the branch pipe on the side opposite to the water supply bottle. The airflow visualization device can use a PET bottle for beverages as the water supply bottle.
The airflow visualization device according to claim 1, wherein an internal screw matching the cap of the beverage PET bottle is formed at one end of the communication pipe. The airflow visualization device according to claim 1 or 2, further comprising a detachable plug component at the connection port.

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