JP2020118505A - Environment formation device - Google Patents

Abstract

To develop an environment formation device that can facilitate layout design so as to allow an article in the environment formation chamber to easily receive blown air and can ensure a sufficient air flow rate of circulated air.SOLUTION: An environment formation device 1 comprises an article arrangement chamber 8 in which an article is arranged, an air conditioning unit 15 accommodating air conditioning equipment 22, and an air blower 30, and circulates the air between the air conditioning unit 15 and the article arrangement chamber 8 using the air blower 30. The air blower 30 is an axial blower in which a plurality of propeller blades 40a and 40b are aligned coaxially along the same rotation axis 35. The air blower 30 is installed in the direction in which the air blower blows the air from the side of the air conditioning unit 15 to the side of the article arrangement chamber 8.SELECTED DRAWING: Figure 1

Description

The present invention relates to an environment forming device that forms a desired environment inside an article placement chamber.

An environment test apparatus is known as an example of the environment forming apparatus. The environment testing device has a test room (article placement room) and artificially creates a predetermined environment such as a temperature environment (for example, high temperature or low temperature) or a humidity environment (for example, high humidity or low humidity) in the test chamber. It can be created in.

Some environment forming devices represented by the environment testing device have an air conditioner and an article placement room. Here, the air conditioner is a part in which an air conditioner such as a heater and a cooler is built in, and the article placement chamber is a space in which an article to be processed such as a sample is placed.
The environment forming device includes a blower, and the air is circulated between the air conditioner and the article arranging chamber by the blower to adjust the environment of the article arranging chamber to a desired environment.

Here, as blowers, centrifugal blowers such as sirocco fans and turbo fans, and axial blowers such as propeller fans are known.
Centrifugal blowers such as sirocco fans generate a high static pressure and can secure a necessary amount of air even in an air blowing path with a large pressure loss.
On the other hand, the centrifugal blower has a complicated casing structure.

On the other hand, an axial flow type blower such as a propeller fan generates a large amount of air for power consumption and can blow a large amount of air. Moreover, the structure of the casing and the like is simple. Further, the axial flow type blower is less expensive than the centrifugal type blower.
On the other hand, in the axial flow type blower, the generated static pressure is low, and it may be difficult to secure a required amount of air in a blower path with a large pressure loss.

JP, 2014-66593, A

For example, when performing an environmental test, it is sometimes desired to blow air directly onto the test piece and bring the temperature of the test piece to the test temperature within a short time.
In such a case, it is desirable that the air blown from the air conditioning unit toward the article arrangement chamber be blown to a place near the sample.

Here, in a centrifugal blower such as a sirocco fan, the intake direction and the exhaust direction intersect. Further, the motor is attached to the casing at a position facing the intake port. Since the casing of a centrifugal blower has a distorted shape, it is often difficult in practice to arrange the layout so that it can be placed in a position where the wind can be directly applied to the specimen. ..

On the other hand, in the axial-flow blower, the intake port and the exhaust port are lined up in a straight line, and therefore it is easy to dispose the axial-flow blower at a position where the wind can be directly applied to the sample.
However, as described above, the static pressure generated by the axial blower is low. Here, the air conditioner of the environmental testing device has an air flow path inside, and a cooler and a heater are built in the air flow path. In addition, the air passage may be narrow. In such a case, the pressure loss in the air conditioning unit is large, and the axial blower may not be able to secure a sufficient ventilation amount.

The present invention pays attention to the above-mentioned problems of the prior art, and an environment forming apparatus that can easily design a layout in which air is easily blown to the articles in the environment forming chamber and can secure a sufficient circulating air volume. The task is to develop.

Aspects for solving the above-mentioned problems include an article placement chamber in which articles are placed, an air conditioner in which an air conditioner is housed, and a blower, and between the air conditioner and the article placement chamber by the blower. In the environment forming device for circulating air, the blower is an axial blower in which a plurality of propeller blades are coaxially arranged side by side on the same rotation axis, and the blower is from the air conditioning unit side to the article placement chamber side. The environment forming device is characterized in that the environment forming device is attached in a direction in which air is blown toward.

The blower used in the environment forming apparatus of the present aspect is an axial blower in which a plurality of propeller blades are coaxially arranged side by side on the same rotation axis. Although the blower is an axial blower, it can generate a high static pressure. Therefore, the axial blower described above can secure a considerable amount of circulating air against pressure loss.

In the above-described aspect, it is preferable that there is a partition that partitions between the article placement chamber and the air conditioning unit, and that the partition has a ventilation opening, and that the ventilation opening blows air toward the article placement chamber.

According to this aspect, it is possible to directly blow air to the article placement chamber without passing through a duct or the like, and the pressure loss is small.

In the above aspect, there is an intake opening near the upper and lower sides of the partition and/or near the left and right sides, and the air in the article placement chamber is introduced from the vicinity of the side of the partition into the air conditioning unit to perform the air conditioning. Desirably, the air passes through the device and is blown by the blower toward the article placement chamber.

According to this aspect, it is possible to realize a layout in which blown air collides with the article and the air can be easily collected in the air conditioning unit. Further, according to this aspect, the retention of air is unlikely to occur.

In each of the above-described aspects, it is preferable that the air conditioner includes at least a heater as one of the air conditioners, and the heater is arranged at a position surrounding the blower.

According to this aspect, it is easy to ensure the opportunity of contact between the air flowing through the air conditioning unit and the heater.

In each of the above-mentioned aspects, the air conditioner includes at least two coolers as one of the air conditioners, and the coolers are preferably arranged at upper and lower sides or left and right positions with the blower interposed therebetween. ..

According to this aspect, it is easy to secure the opportunity of contact between the air flowing through the air conditioning unit and the cooler.

In each of the above-mentioned aspects, it is preferable that a peripheral member is provided around the propeller-shaped blade, and the peripheral member forms a blowing opening for blowing air toward the article placement chamber.

According to this aspect, useless diffusion of air is prevented.

In each of the above-mentioned aspects, it is desirable that a rectifying unit be provided in front of the propeller blade in the air blowing direction.

According to this aspect, the rectified air can be applied to the article.

In each of the above-mentioned aspects, it is desirable that an air flow direction unit is provided in front of the propeller blade in the air flow direction.

According to this aspect, it is possible to direct the air to the article by directing the wind direction means to the article side, or to prevent the direct air flow from hitting the article by directing the wind direction means to a direction other than the article.

It is preferable that the article placement chamber has an article holding means for holding the article in a hollow state, and the air blown by the blower is directly blown to the article.

According to this aspect, the temperature of the article or the like can reach the target temperature or the like within a short time.

INDUSTRIAL APPLICABILITY The environment forming apparatus of the present invention can easily design a layout in which air is easily blown to the articles in the environment forming chamber and can secure a sufficient circulating air volume.

It is sectional drawing of the environment formation apparatus of embodiment of this invention. It is an AA sectional view of FIG. It is explanatory drawing of the blade|wing of the air blower employ|adopted by the environment formation apparatus of FIG. FIG. 2 is a perspective view near a blower of the environment forming device of FIG. 1. (A) And (b) is sectional drawing of the environment formation apparatus of other embodiment of this invention, respectively. It is a perspective view of the compound type|mold test apparatus provided with the environment formation apparatus of other embodiment of this invention. It is sectional drawing of the environment formation apparatus employ|adopted by the composite-type test apparatus of FIG.

Hereinafter, the environment forming apparatus of the present invention will be described by taking the environment test apparatus 1 as an example.
As shown in FIG. 1, the environmental testing device 1 of the present embodiment has a housing 3 formed of a heat insulating wall 2. An opening 5 is provided on the front surface of the housing 3, and a door 6 is provided in the opening 5. Inside the housing 3, there is a space that functions as a test room (article placement room) 8.

In the present embodiment, the housing 3 and the door 6 form the heat insulating tank 10. There is a partition wall (partition) 11 inside the heat insulation tank 10, and the inside of the heat insulation tank 10 is largely divided by the partition wall 11 into a test chamber 8 and an air conditioning unit 15.
The partition wall 11 is provided with intake openings 16 and 17 in the upper and lower ends, that is, in the vicinity of the upper and lower sides of the partition wall 11.
A ventilation opening 20 is provided at the center of the partition wall 11.

An air conditioner 22 and a blower 30 are built in the air conditioner 15.
The air conditioner 22 includes a humidifier 23, coolers 25a and 25b, and a heater 26.
The coolers 25a and 25b are evaporators of a known cooling device. The cooling device of the present embodiment has a configuration in which the downstream side of a condenser (not shown) is branched, two coolers 25a and 25b are connected in parallel, and a refrigerant is supplied to each.
The heater 26 is an electric heater, and is formed in a substantially annular shape as shown in FIGS. The humidifying device 23 includes a humidifying tray 27 that stores water and a humidifying heater 28.

The blower 30 is an axial blower, and has a blade portion 32, a drive motor 33, and a rotary shaft 35.
The drive motor 33 is a known induction motor or DC motor, and the output shaft 36 rotates.
The rotating shaft 35 is connected to the above-mentioned output shaft 36 via a coupling 38, and receives power from the output shaft 36 to rotate.
A drive motor 33 having a long output shaft may be adopted, and the output shaft of the drive motor 33 may be the rotation shaft 35.
As shown in FIG. 1, the drive motor 33 is located outside the housing 3, the rotary shaft 35 is inserted through a through hole 42 provided in the housing 3, and the rotational force is transmitted to the blade portion 32 inside the housing 3. To do.
A peripheral member 31 is provided around the blade portion 32. The peripheral member 31 includes a tubular member and a bell mouth.
Further, an air direction adjusting member 37 is provided on the blowout side of the blower 30.

In the present embodiment, the blade portion 32 has two propeller-shaped blades 40a and 40b. The two propeller blades 40a and 40b are coaxially arranged on the same rotary shaft 35.
In the present embodiment, the two propeller blades 40a and 40b have the same shape. That is, the two propeller blades 40a, 40b have the same number, diameter, and twist of the blades forming each of the propeller blades 40a, 40b.
Both of the two propeller blades 40a and 40b are attached by a key or the like not shown so as to rotate integrally with the rotary shaft 35.
Further, a collar 41 is mounted between the two propeller blades 40a and 40b, and the gap between the propeller blades 40a and 40b is kept constant.
The blade portion 32 is inserted in the peripheral member 31 as shown in FIG.

The air flow adjusting member 37 is composed of a plurality of plates 46 arranged in parallel at regular intervals. The airflow adjusting member 37 may or may not be able to change the angle.
The air flow adjusting member 37 is attached to the tip of the peripheral member 31, and has a function as a rectifying unit that rectifies the wind and a function as a wind direction unit that changes the direction of the wind.

Next, the positional relationship of each member will be described.
In the present embodiment, the air blower 30 is attached to the heat insulating tank 10 so that the blade portion 32 of the blower 30 is located at the center of the partition wall 11 and the opening of the peripheral member 31 is formed in the partition wall (partition) 11. It is an opening 20.
Specifically, a peripheral member 31 is fitted in the center of the partition wall (partition) 11. That is, in the present embodiment, the partition wall (partition) 11 is fitted not at the end portion side but at the middle position (hereinafter referred to as the center). In the present embodiment, the peripheral member 31 is installed at the center of the partition wall (partition) 11, but the position of the peripheral member 31 does not have a great influence even if it is slightly displaced from the center.
As shown in FIGS. 1 and 2, the tip of the peripheral member 31 projects from the partition wall 11 to the test chamber 8 side. The rear end of the surrounding member 31 projects toward the air conditioning unit 15 side.
The peripheral member 31 may protrude only on one of the test chamber 8 side and the air conditioning unit 15 side, or may be a short member that does not protrude on either side.

Since the rear end side opening of the peripheral member 31 functions as the air intake portion 45 of the blower 30, the air intake portion 45 of the air blower 30 is not limited to the height direction (FIG. 2H direction) of the partition wall 11 (FIG. 2W). Direction) is also in the center position.

The two coolers 25a and 25b are located above and below the intake portion 45 of the blower 30 as shown in FIGS. 1, 2, and 4.
In other words, the upper cooler 25a is arranged between the upper intake opening 16 and the intake portion 45.
The lower cooler 25b is arranged between the lower intake opening 17 and the intake portion 45.

The heater 26 is provided at a position surrounding the intake section 45.
The humidifying device 23 is installed below the air conditioning unit 15.
A temperature sensor 50 and a humidity sensor 51 are provided in the test chamber 8 in the vicinity of the ventilation opening 20. The positions of the temperature sensor 50 and the humidity sensor 51 are arbitrary, and are not limited to the vicinity of the ventilation opening 20.

Next, the function of the environment test apparatus 1 of this embodiment will be described.
In the environment test apparatus 1 of the present embodiment, when the blower 30 is activated, air circulates between the air conditioner 15 and the test room 8, and the temperature and humidity inside the test room 8 are adjusted to a desired environment.
When the blower 30 is started, the inside of the air conditioner 15 tends to have a negative pressure, and the air in the test chamber 8 is introduced into the air conditioner 15 through the upper and lower intake openings 16 and 17. Then, the air conditioner 15 is in a ventilated state, the air contacts the air conditioner 22, heat exchange and humidity adjustment are performed, and the air is sucked into the air intake part 45 of the blower 30.
Then, the air whose temperature and humidity have been adjusted is blown out from the tip of the blower 30 into the test chamber 8. Air is blown out from the ventilation opening 20 at the center of the partition wall 11 toward the test chamber 8.

When using the environment test apparatus 1, the blower 30 is operated and the air conditioner 22 is controlled so that the detected values of the temperature sensor 50 and the humidity sensor 51 approach the temperature and humidity of the set environment.
The blower 30 adopted in this embodiment has two propeller blades 40a and 40b, and the two propeller blades 40a and 40b are synchronously rotated by the drive motor 33.
Further, in the present embodiment, the two propeller blades 40a and 40b are both inside the peripheral member 31 and are arranged in series on the same axis.

For convenience of explanation, the propeller blades 40a on the side closer to the air conditioning unit 15 will be referred to as the first propeller blades 40a, and the propeller blades 40b on the side closer to the test chamber 8 will be referred to as the second propeller blades 40b.
In the present embodiment, the negative pressure generated by the two propeller blades 40 a and 40 b sucks and pressurizes the air in the air conditioning unit 15, and discharges it into the test chamber 8.
Here, in the present embodiment, the air that has entered the peripheral member 31 is urged and pressurized by the first propeller blade 40a and sent to the second propeller blade 40b. Then, the air is further urged and pressurized by the second propeller blade 40b and is discharged from the blower opening 20 into the test chamber 8.

As described above, in the present embodiment, the air is pressurized in two stages by the two propeller blades 40a and 40b, so that a higher static pressure is generated as compared with the normal blower configured by one propeller blade. be able to.
In other words, the negative pressure that can be generated by the blower 30 is high, and a necessary amount of air can be drawn into the air conditioning unit 15 against the pressure loss caused by the coolers 25a and 25b and the heater 26.
Therefore, in the environmental test device 1 of the present embodiment, it is possible to sufficiently secure the circulating air between the air conditioning unit 15 and the test chamber 8.
Further, in the environmental testing device 1 of the present embodiment, since the air is blown from the central portion of the partition wall 11 toward the center of the test chamber 8, it is directly connected to the test piece 53 installed in the central portion of the test tank 8. You can also apply the wind. Further, by adjusting the direction of the air flow adjusting member 37, it is possible to apply the wind to the test piece 53 installed at a position other than the center of the test tank 8.

In the above-described embodiment, the intake openings 16 and 17 are provided near the upper and lower sides of the partition wall 11, and the two coolers 25a and 25b are installed between the intake openings 16 and 17 and the intake section 45.
According to this aspect, the coolers 25a and 25b cross the ventilation passage between the intake openings 16 and 17 and the intake portion 45 of the blower 30, and the blower and the coolers 25a and 25b often come into contact with each other. High exchange efficiency.
The same applies to the heater 26, and since the heater 26 is provided at a position surrounding the intake portion 45, there are many opportunities for contact between the air blower and the heater 26, and the heat exchange efficiency is high.

Further, since two ventilation paths are formed in the air conditioning unit 15 and the two ventilation paths are both short, the pressure loss is relatively small.
Further, since air is sucked in from above and below the test chamber 8, it is difficult to form a portion where air stagnates in the test chamber 8.

In the above-described embodiment, as described above, the intake openings 16 and 17 are provided near the upper and lower sides of the partition wall 11, and the two coolers 25a and 25b are provided between the intake openings 16 and 17 and the intake section 45. However, as shown in FIG. 5A, the intake openings 60 and 61 are provided near the left and right sides of the partition wall 11, and the two coolers 25a and 25b are connected to the intake openings 60 and 61 and the intake openings 60 and 61, respectively. It may be arranged between the parts 45.
Further, as shown in FIG. 5B, intake openings 16, 17, 60, 61 are provided in the vicinity of the upper and lower sides of the partition wall 11 and in the vicinity of the left and right sides thereof, and a cooler is provided around the intake section 45. 25a, 25b, 25c and 25d may be arranged in a ring shape.
In the above-described embodiment, the intake opening is provided outside the partition wall 11, but the intake opening may be formed by forming a hole for intake in the partition wall 11 itself.

The shape of the intake opening is arbitrary and may be constituted by a large number of small holes. Further, a filter or the like may be attached.

In the above-described embodiment, the heater 26 is installed at a position surrounding the intake part 45, but like the cooler 25, the heater 26 is divided into a plurality of parts, and the space between the intake openings 16, 17, 60, 61 and the intake part 45 is divided. May be provided.

In the embodiment described above, the propeller blades 40a and 40b that form the blade portion 32 have the same shape, and the number of blades that form each propeller blade 40a and 40b, the direct system, and the twist are the same.
The present invention is not limited to this configuration, and the propeller blades 40a and 40b may have different shapes.
For example, one propeller blade has a strong twist to secure a large air volume, and the other propeller blade has a weak twist to increase the pressurizing performance and a large number of blades. Good.

In the embodiment described above, the blower 30 has the two propeller blades 40a and 40b, but may have three or more propeller blades 40.

In the embodiment described above, the output shaft 36 of the drive motor 33 is extended and the propeller blades 40a and 40b are attached, but the output shaft (rotation shaft) 36 of the drive motor 33 is directly attached to the propeller blades 40a and 40b. May be attached.
Further, the output shaft 36 of the drive motor 33 and the rotary shaft 35 having the propeller blades 40a and 40b are arranged in parallel, and the rotary shaft 35 having the propeller blade 40 is mounted by using a power transmission means such as a belt. You may rotate.

In the above-described embodiment, the airflow adjusting member 37 is provided at the tip of the blower 30. According to this configuration, the wind direction can be changed by the air flow adjusting member 37, and the wind can be directly applied to the sample 53. It is also possible to prevent the wind from directly hitting the test piece 53.
However, the air flow adjusting member 37 is not essential and can be omitted.

The environmental test apparatus of the present invention can also be applied to an environmental test apparatus used as a part of a composite type test apparatus.
Here, the composite type tester is a combination of a tester such as a tensile tester, a compression tester, a shear tester, a hardness tester, an impact tester, and an environmental tester, and is used as a material under a desired environment. A test such as applying a load is performed.
Hereinafter, an aspect in which the present invention is applied to a composite type test apparatus will be described.
The test apparatus 70 shown in FIG. 6 is a composite type test apparatus, and more specifically, a composite type tensile test apparatus. The test apparatus 70 of the present embodiment includes an environmental test apparatus 71 and an external force applying device 72.

The external force application device 72 is a tensile tester. The external force imparting device 72 has a base portion 80 and a gate frame 73 as shown in FIG.
The gate frame 73 has a guide rail (not shown), and the lifting rail 75 is engaged with the guide rail of the gate frame 73.
An upper rod 76 is provided below the elevating rail 75, and an upper grip (article holding means) 77 (see FIG. 7) is provided at the tip of the upper rod 76. That is, the upper grip 77, which is a holding portion, is attached to the lifting rail 75, which is a driving portion, via the upper rod 76.

Further, the base portion 80 is provided with a lower rod 78, and a lower grip (article holding means) 82 (see FIG. 7) is provided at the tip of the lower rod 78.
The external force imparting device 72 includes a moving device that moves the upper grip 77 upward, an extensometer that detects the amount of movement of the grip, and a load meter that detects a tensile load, as in a known tensile tester. (Not shown).

The environmental test device 71 is obtained by modifying the door 6 of the environmental test device 1 of the above-described embodiment and directly attaching the auxiliary component 93 to the door 6.
As shown in FIG. 7, the auxiliary component 93 is provided with through holes 86 and 87 at the top and bottom. The through holes 86 and 87 are provided for inserting the rods 76 and 78 of the external force imparting device 72 and a part of the test piece.
The environmental test device 71 expands the heat insulation tank 10 by attaching the auxiliary component 93, and expands the test chamber 8 to the auxiliary test chamber (article arrangement chamber) 85 in the auxiliary component 93. Also in the environmental test device 71, the partition wall 11 separates the air conditioning unit 15 from the others, and the air blower 30 circulates air between the air conditioning unit 15 and the space in the auxiliary component 93, so that the inside of the auxiliary test chamber 85 is closed. The temperature and humidity are adjusted to the desired environment.

In the composite type test apparatus 70 of the present embodiment, the upper grip 77 and the lower grip 82 are installed inside the environment test apparatus 71, and both ends of the specimen 95 are gripped to make the specimen 95 hollow. Hold and place the specimen 95 in front of the ventilation opening 20.
Then, the wind blown from the blowing opening 20 is directly applied to the sample 95 in the auxiliary test chamber 85, and the tensile test is performed in the environment created in the environmental test device 71.
According to the composite-type testing apparatus 70 of the present embodiment, the test piece 95 is directly blown with air, and the surface temperature and the like of the test piece 95 can be changed to a desired temperature in a short time. Therefore, the tensile test can be performed in a short time.

In the environmental test device 71 adopted in the test device 70, the auxiliary component 93 is provided in the environmental test device 1 shown in FIG. 1, and the through holes 86 and 87 through which the rods 76 and 78 are inserted are provided in the auxiliary component 93. The environmental testing device 1 itself may be provided with the through holes 86 and 87.

In the embodiment shown in FIGS. 1 to 5, the blower 30 is installed at the center of the partition wall 11 and on the center line of the test chamber 8.
This layout is recommended, but the invention is not limited to this layout.
In some environment forming devices such as environment testing devices, the center axis of the partition wall 11 and the center axis of the test chamber 8 do not coincide with each other, and the center point of the partition wall 11 is located above, below, left side, or right side of the test chamber 8. Some are off. The present invention can be applied to the environment test apparatus having such a configuration.

The position of the blower 30 is recommended to be a position where the air can be blown toward the center of the test chamber 8, but the position of the blower 30 is not limited and may be another position.
Especially when the air flow adjusting member 37 is adopted, even if the blower 30 is located at a position not above the center of the test chamber 8 such as above the air conditioning unit 15, the air flow adjusting member 37 may change the direction of the wind. For example, it is possible to blow air to the sample placed around the center of the test chamber 8.

1 Environmental test equipment (environment forming equipment)
8 test room (article placement room)
11 partition walls
15 Air-conditioning unit 16, 17, 60, 61 Air intake opening 20 Blower opening 22 Air-conditioning equipment 25a, 25b Cooler 26 Heater 30 Blower 31 Surrounding member 32 Blade part 33 Drive motor 35 Rotating shaft 37 Air flow adjusting member (rectifying means) (wind direction) means)
40a, 40b Propeller blade 45 Intake part 52 Article holding means 53 Specimen 70 Testing device 71 Environmental testing device 72 External force applying device 77 Upper grip (article holding means)
82 Lower grip (article holding means)
85 Auxiliary test room (article placement room)

Claims (9)

In an environment forming device that has an article placement chamber for placing articles, an air conditioning unit that accommodates an air conditioner, and a blower, and that circulates air between the air conditioning unit and the article placement chamber by the blower,
The blower is an axial blower in which a plurality of propeller blades are coaxially arranged side by side on the same rotation axis,
An environment forming apparatus, wherein the blower is attached in a direction of blowing air from the air conditioning unit side toward the article placement chamber side. The partition for partitioning between the said article arrangement|positioning chamber and the said air-conditioning part is provided, the said ventilation opening is provided in the said partition, and it blows from the said ventilation opening to the said article arrangement chamber side, It is characterized by the above-mentioned. Environment forming device. There is an intake opening in the vicinity of the upper and lower sides of the partition and/or in the vicinity of the left and right sides, and the air in the article placement chamber is introduced into the air conditioner from the vicinity of the side of the partition and passes through the air conditioner. The environment forming apparatus according to claim 2, wherein the air is blown toward the article placement chamber by the blower. The environment according to any one of claims 1 to 3, wherein the air conditioner includes at least a heater as one of the air conditioners, and the heater is arranged at a position surrounding the blower. Forming equipment. The at least two coolers are provided in the air-conditioning unit as one of the air-conditioning devices, and the coolers are arranged at upper and lower sides or left and right positions with the blower interposed therebetween. The environment forming apparatus according to any one of 4 above. The environment according to any one of claims 1 to 5, further comprising: a peripheral member around the propeller blade, wherein the peripheral member forms a ventilation opening for blowing air toward the article placement chamber. Forming equipment. 7. The environment forming apparatus according to claim 1, further comprising a rectifying unit provided in front of the propeller blade in the air blowing direction. 8. The environment forming device according to claim 1, further comprising an air flow direction unit provided in front of the propeller blade in the air flow direction. 9. The article arranging chamber has an article holding means for holding the article in a hollow shape, and the air blown by the blower is directly blown to the article. Environment forming device.

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