JPS62255755A - Uniform distribution type blowout port device - Google Patents

Abstract

PURPOSE:To make a uniform distribution of temperature and improve stability in operation by a method wherein a face panel having blowing air holes is arranged at a lower surface of a partition plate having orifices and small aeration holes in a uniform distribution type blowout port device for keeping a circumstance in a hospital and the like and a dispersion panel is arranged in it. CONSTITUTION:A filter 4 is arranged at an intermediate stage of a chamber 2 of rectangular type of which lower surface is released, orifices 11 are made at a lower central part of the unit and several small aeration holes 13 are made in a range corresponding to a blowout port 12 of the filter 4. To the lower surface of the chamber 2 is fixed a frust pyramidal pan-type face panel 14 oppositely faced to each other. Air discharging holes 21-25 are arranged in an entire area of a portion 19 and a bottom part 20 except blind portions 17 and 18 of circumferential walls 15 and 16 of this face panel 14 so as to form an air regulation chamber 23. A dispersion panel 27 is arranged in a horizontal orientation in the air regulation chamber 23 with hanger bolts 28. With this arrangement, it is possible to make a mean distribution of temperature and a stable distribution of temperature.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention is applied to a uniform system used to ensure an optimal environment such as airflow and temperature in laboratories, hospitals, pharmaceutical factories, food factories, and other factories. - It relates to a distribution outlet device.

[Conventional technology]

Conventionally, as shown in FIGS. 1 to 3, this type of air outlet device has been conventionally equipped with a chamber (2) having an approximately cubic shape with a duct connection collar (1) on the upper part of the side surface and having only the lower surface open. ) Turn and install the filter mounting frame (3) on the inner peripheral surface of the lower part of K.
3) Fix the K ultra-high performance filter (4) with the filter mounting bolt (5) and filter mounting bracket (6) K, and install the ventilation holes (31) on the entire bottom surface of the chamber (2).
) is arranged with a dish-shaped face panel (14) exhibiting an upside-down truncated pyramid shape, and the peripheral edge of this face panel α4 is fixed to the lower flashing edge of the chamber (2). When compared with the embodiments of the present application which will be described later, there are known devices that do not have the functions of the partition plate (8), the oriice aυ, the blind spot t17) (Lυ, the diffusion panel, etc.).

[Problem that the invention seeks to solve]

The conventional air outlet device described above had poor airflow distribution and temperature distribution, as is clear from the experimental results described below. In particular, it is necessary to obtain a state in which the wind speed in the area immediately below the air outlet and in the bounce area, that is, the entire indoor living area, is 0.2 m/s or less, and the temperature distribution in the room is averaged and stable over the entire area. There were deficiencies such as the inability to do so.

[Means for solving problems]

The present invention aims to eliminate the above-mentioned defects and achieve improvement in airflow distribution and temperature distribution by adding a partition plate (8), an orifice aυ, a diffusion panel (c), etc.

〔Example〕

The embodiment of the present invention shown in the figure is a box-shaped chamber (2) which is open only on the bottom side and has a collar (1) for connecting a duct (not shown) at the upper side of the chamber (2). A filter mounting frame (3) is provided around the circumferential surface of the filter mounting frame (3), and the ultra-high performance filter (4) is fixed to the filter mounting bolt (5) and filter mounting bracket (6), and the chamber ( 2) Install a partition plate (8) on the bottom surface of the chamber (2) to separate the chamber (2) into a pre-cleaning chamber (9) and a post-cleaning chamber α.
・Separated into two, and an orifice (
11), and in the partition plate (8), numerous small ventilation holes ( 13, and a dish-shaped face panel I having an upside-down truncated pyramid shape is arranged on the lower surface of the chamber (2), and the peripheral edge of the face panel I is fixed to the lower opening edge of the chamber (2), The left and right peripheral walls a of this face panel I
9 and the upper blind spot (17) on the front and rear peripheral walls (16)
and the clear area (1) excluding the blind area (18) on the lower side.
9) and the bottom wall (20) of the same face panel (14)
There are countless small left-facing vents (21), right-facing vents (A), forward-facing vents (C), backward-facing vents (I), and downward-facing vents on the entire surface of the face. Banel I
A disc-shaped diffusion panel (3) whose diameter is slightly larger than the orifice συ is placed horizontally in the air conditioning chamber (a) surrounded by the partition plate (8) and the orifice (c!). Diffusion is achieved by fixing the suspension bolt (2) in an upright position at the center point of D, and aligning the upper end of the suspension bolt (2) with the nut (■) of the bridge member (■) stretched within the orifice αυ. The vertical position of the panel can be adjusted freely within the above-mentioned ventilation room.

In the figure, (c) is the hanging fitting, (to) is the face panel frame,
(b) shows the face panel mounting screw, and (to) shows the adjustment hole plug.

Nine, the above-mentioned ultra-high performance filter (4) is a piece of glass fiber folded into pleats, sandwiched between corrugated separators, housed in a frame, and sealed to prevent leakage. , its performance is based on US standards <:
When measured by the DOP method, 9 with 0.3 μm particles
It has a high dust collection efficiency of 9.97% or more.

[For production]

Next, test data on airflow distribution and temperature distribution of the outlet device of the present application (hereinafter referred to as improved type) and a conventional outlet device (hereinafter referred to as conventional type) will be described.

(Test method) As shown in Figure 7 and tlc8, the sample for health use (
(to) is attached to the ceiling (to) of the measurement room (9), and this sample (to) has a spiral duct with a built-in punching panel (to), a flexible duct (6), and an orifice (to).
A test air conditioner (9) is connected via a duct (to) with a manometer (to) and a measurement room (r37)
An exhaust port (B) is opened at the bottom of the left side wall (■), and a box component with a built-in swingable punching panel (C) and a 7 lexiple duct 6I with a control damper 60 are installed at the bottom of the left side wall (■).
), and a manometer mallet for static pressure measurement is attached to the box part (to), and a manometer hammer for measuring static pressure is connected to the inside of the measurement chamber (C37) and the spiral duct) (KC in 40).
A large number of u-Con thermocouples (1) are installed outside the measurement chamber (9), and a hybrid recorder for temperature measurement to which these thermocouples (1) are connected is also installed on the right side of the measurement chamber (2). A test device is used, each equipped with a floodlight on the outside.

The instrument used above is a hybrid recorder Trpm 5o8e yyr w 11Cu.
-Con thermocouple Kokka Denki Moanpetz type manometer Rika Seiki ■θ~2o? ″8±0.
1 Orifice Manufactured by Shimadzu ■8~53/4
N Hot wire anemometer MODBL manufactured by Nihon Kagaku Iiho
-6121.

(a) Airflow distribution measurement ■ Airflow is blown out from the air outlet, causing fluffy dust to float in the measurement chamber (b).

■ Photograph the movement of the dust mentioned above by illuminating the side of the measurement room (shutter speed: 1 second)
do.

■ Wind speed measurements are obtained using a hot wire anemometer and the airflow distribution photograph above.

(b) Temperature distribution measurement test air conditioner (with air blowing from 4!9 to control the temperature at the outlet, temperature measurements were performed at multiple points using Ou-Con thermocouples (to), and High print record;-Der EdK records its service.

(C) Setting the blowout air volume The differential pressure across the orifice (6) installed in the middle of the duct 04) was measured with a manometer.1, Tl5B-8330
Determine this using the "air volume - orifice differential pressure" diagram created according to the blower test method.

fd) The air volume is calculated by measuring the average wind speed using a control damper and a hot wire anemometer installed in the middle of the air volume setting duct 61) of the indoor exhaust outlet.

(Test results) (a) Conventional type Analytical diagrams based on photographed photographs shown in FIG. 9 and FIG. 1O could be obtained.

(b) Improved model Analytical diagrams based on photographs shown in FIGS. 11 and 12 were obtained.

Solution, in the analysis diagram, A is the case when the thermocouple is installed on the vertical plane that includes line A in Figure 8, and B
is the case when the device is installed on a vertical plane containing line B.

(Considerations from the analysis diagram) (a) Conventional type ■ In the central part of the indoor living area, that is, the part directly below the air outlet, the wind speed is o, s s rrv'h 1! It is approximately 0.1 m7s at the rebound part of the airflow.

■ The temperature distribution in the room is such that a concentrated stream of cold air falls directly below the room.
The temperature difference between the part directly below this and the part where it bounces off is about 1.5 degrees Celsius.

(b) Improved type ■ The wind speed in the area directly below the air outlet and in the splash area, that is, in the entire indoor living area, is 0.2 TIV or less.

■ The temperature distribution in the room is average and stable over the entire area.

〔Effect of the invention〕

Since the present invention is based on the above, it is of course possible to achieve an excellent effect of completely achieving the intended purpose.
eK In the present invention, the partition plate, the oriice, the blind area, and the diffusion panel greatly contribute to the achievement of the above object and enable the implementation of the present invention, as is clear from the above test results.
It is highly effective.

[Brief explanation of drawings]

The figure shows an embodiment of the uniform distribution type outlet device of the present invention, and FIG. 1 is a partially cutaway front view showing a conventional embodiment;
FIG. 2 is a partially cutaway side view, FIG. 3 is a bottom view, FIG. 4 is a partially cutaway front view showing an embodiment of the present invention, and FIG. 5 is a partially cutaway side view. Fig. 6 is a partially cutaway bottom view, Fig. 7 is a schematic front view showing the test device, Fig. 8 is a schematic plan view, Fig. 9 is an analytical view of a photograph taken from the front of the conventional llK test condition, and Fig. Figure 10 is an analysis diagram of a photograph taken from the side, Figure 1I is an analysis diagram of a photograph taken from the front of the improved test condition, and Figure 12 is an analysis diagram of a photograph taken from the side. (1)...Duct connection collar, (2)...Chamber, (3)...Filter mounting frame, (4)...Ultra high performance filter, (5)...Filter mounting bolt, (6)... Filter mounting bracket, (8)... Partition plate, (9)... Cleaning front chamber, α0... Cleaning rear chamber, aυ
... Orifice, a2 ... Blowout side port, 0 ... Ventilation hole, (14 ... Face panel, (2) ... Left and right peripheral walls, (16) ... Front and rear peripheral walls, (17) ... Upper blind spot (18)... Lower blind spot, α1... Open area area, (1)... Bottom wall, 31)... Left facing ventilation hole, (c)... Right facing Exhaust vent, @... forward facing exhaust vent, Q4)
... Rearward facing ventilation hole, (A) ... Downward facing ventilation hole, (A) ... Air conditioning room, Punishment 9.・Diffusion panel, (c)...hanging bolt, (7)...bridge member, (g)...oak), C33...hanging fitting, (to)...face panel frame, ( 2)...Face panel mounting screw, (to)...
・・Adjustment hole plug, (to) ・・Sample, C17)・・
・Measurement room, ■...ceiling, fence...punching panel,
(4(lI...Spiral duct, (41)...Flexible duct, (Rotation)...Orifice, (C)...
... Manometer, (44... Duct, (c)...
Test air conditioner, (c)...left side wall, αη...-exhaust port, (4 sand...punching panel, (to)...box, (to)...control damper, 51) ...Flexible duct, Me...Exhaust blower, Hammer...Manometer for measuring static pressure, (To)...Thermocouple, Trowel...Hybrid recorder, 57)...Floodlight.

Claims (1)

[Claims] A partition plate is attached to the bottom of the box shape with a collar for connecting the duct at the upper part, and an orifice is opened in the center of the partition plate, and innumerable places are placed in a wide area around the orifice in the partition plate. A small ventilation hole is formed in the chamber, and a dish-shaped face panel with an upside-down truncated cone shape is placed on the bottom surface of the chamber, and the peripheral edge of the face panel is fixed to the bottom opening edge of the chamber. Numerous small left-facing ventilation holes, right-facing ventilation holes, forward-facing ventilation holes, and rear-facing ventilation holes are located on the peripheral wall, the front and rear peripheral walls, excluding blind areas, and the bottom wall of the same face panel. , a downward vent is opened, and a diffusion panel with a diameter slightly larger than the orifice is installed in the air conditioning chamber surrounded by a face panel and a partition plate, the vertical position of which can be adjusted horizontally, and which is concentric with the orifice. Uniform distribution type air outlet device featuring: