WO2016093234A1 - 送風機および換気システム - Google Patents
送風機および換気システム Download PDFInfo
- Publication number
- WO2016093234A1 WO2016093234A1 PCT/JP2015/084408 JP2015084408W WO2016093234A1 WO 2016093234 A1 WO2016093234 A1 WO 2016093234A1 JP 2015084408 W JP2015084408 W JP 2015084408W WO 2016093234 A1 WO2016093234 A1 WO 2016093234A1
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- WIPO (PCT)
- Prior art keywords
- air flow
- blower
- airflow
- human hole
- air
- Prior art date
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- 238000009423 ventilation Methods 0.000 claims description 49
- 238000009434 installation Methods 0.000 claims description 12
- 239000000654 additive Substances 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 6
- 230000000996 additive effect Effects 0.000 claims description 5
- 239000003205 fragrance Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/08—Ventilation of sewers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
Definitions
- the present invention relates to a blower and a ventilation system.
- the present invention relates to a blower and a ventilation system suitable for ventilation in structures such as pipes, pipes, and tunnels installed underground or on the ground.
- pipe When performing manual work such as maintenance inspections in pipes or pipes (hereinafter simply referred to as "pipe") such as sewers, the worker enters the pipe through a manhole. Is common. There is a possibility that the inside of the pipe will be in an oxygen-deficient state, and there is a possibility that toxic gas such as hydrogen sulfide may be generated.
- Non-Patent Document 1 is a report on work safety in sewer pipes, and describes recommendations based on the analysis of accident cases and specific safety matters.
- a ventilation method in the tube “Installing a fan considering the wind direction of the outside air, supplying air from one side, and exhausting from the other side to the outside, Ventilation is performed.
- the wind speed in the tube is set to 0.8 m / second or more ”
- an image of the cleaning operation is illustrated
- examples of the fan and the duct are illustrated by photographs. According to the image of the cleaning operation, air is supplied and exhausted by a fan inserted into both the air supply side and exhaust side human holes and connected to the ground surface side of each duct.
- a fan When ventilating a structure for the purpose of securing a traffic road such as a tunnel, for example, a fan is installed on the ceiling of the structure to generate an air flow in the structure, and the structure is ventilated by intake and exhaust from the entrance and exit. This technique is adopted.
- Patent Document 1 discloses a manhole intake / exhaust device
- Patent Document 2 discloses a ventilator for underground structures.
- a fan is installed on the ceiling or the like for ventilation of structures such as tunnels to secure traffic roads, a space for fan installation is required, and the cross-sectional area of the structure is required as a traffic road. The cross-sectional area may be exceeded, and the cost for constructing the structure may be high.
- a tunnel that is a structure for securing a traffic route, traffic blocking at the tunnel entrance and exit is not allowed, and therefore ventilation means that does not block traffic at the entrance and exit is necessary.
- An object of the present invention is to provide a blower suitable for installation at a manhole opening, where an operator can easily go in and out or an article can be carried in and out.
- the objective of this invention is providing the air blower which can be installed in an entrance / exit, without interrupting
- the objective of this invention is providing the ventilation system in structures, such as a pipe rod or a tunnel using the said air blower.
- a frame body and a single or a plurality of airflow generation means arranged in the frame body are generated and generated from the airflow generation means.
- the direction of the airflow is adjusted such that the airflow flows along a virtual axis that passes through a virtual plane that surrounds the frame, and the airflow entrains and flows the air around the virtual axis.
- a blower that generates an air volume exceeding twice the total flow rate.
- the virtual axis may intersect the virtual surface perpendicularly at the center point of the virtual surface.
- a plurality of the airflow generating means may be arranged on the frame, and in this case, the direction of each airflow is such that each airflow generated by the plurality of airflow generating means flows toward one point on the virtual axis. May be adjusted.
- the plurality of airflow generation means may be arranged at symmetrical positions around the intersection of the virtual plane and the virtual axis. You may have the installation tool which installs the said airflow generation means in the said frame, In this case, the said installation tool may have an angle adjustment mechanism which adjusts the angle of the said airflow generation means with respect to the said virtual surface. .
- the incident angle of the airflow with respect to the virtual surface is preferably 16 degrees or more and 24 degrees or less.
- the airflow generation means may include a generation source of the airflow and an emission nozzle that emits the airflow.
- the cone portion that converges the airflow sent from the generation source by the emission nozzle.
- a cylindrical portion located on the tip side of the cone portion.
- the emission nozzle may include a direction adjustment mechanism that adjusts a direction of the airflow.
- You may further have a fixing jig which fixes the said frame to a human-hole opening part.
- You may further have the obstruction
- the blower is installed in at least one inlet, outlet or manhole.
- the air flow direction changing means for changing the direction of the air flow from the vertical direction to the horizontal direction or from the horizontal direction to the vertical direction may be provided at the inlet, outlet or the bottom of the manhole where the blower is installed.
- the air flow direction changing means include an air flow reflecting plate that reflects the air flow to change the direction.
- the air flow direction changing means includes second air flow generation means for generating a second air flow different from the air flow from the blower, and the second air flow is in a direction different from the air flow from the blower. And those that change the direction of the air flow.
- An exhaust device may be installed in at least one of an inlet, an outlet, or a human hole different from the inlet, outlet, or human hole where the blower is installed.
- the exhaust device is installed at the first inlet, outlet or manhole downstream of the inlet, outlet or manhole where the blower is installed.
- Air flow direction changing means for changing the direction of the air flow from the vertical direction to the horizontal direction or from the horizontal direction to the vertical direction may be provided at the bottom of the inlet, outlet or manhole where the exhaust device is installed.
- FIG. 1 is a sectional view showing an example of a ventilation system for a sewer pipe.
- the ventilation system 100 ventilates a pipe 110 buried under the ground surface 102.
- the pipe rod 110 is an underground space defined by a bottom portion 114 and a wall surface 112, and has a horseshoe-shaped cross section, for example.
- a manhole 116 and a manhole 118 are provided between the tube 110 and the ground surface 102, and an operator can enter the tube 110 through the manhole 116 or the manhole 118.
- the human hole 116 is on the air supply side
- the human hole 118 is on the exhaust side.
- a blocking curtain 120 may be provided in the tube rod 110 in order to block the tube tube region between the human hole 116 and the human hole 118 from other tube tube regions. Efficient ventilation can be achieved by the blocking curtain.
- a blower 140 is installed in the opening of the air supply side human hole 116, and an exhaust device 170 is installed in the exhaust side human hole 118.
- the exhaust device 170 is a conventional fan-type exhaust device, and a duct 172 connected to the exhaust device 170 is inserted into the human hole 118.
- the blower 140 may be installed in a plurality of human holes, and the exhaust device 170 may be installed in a plurality of human holes.
- the human hole 118 is preferably the first human hole located downstream of the human hole 116.
- FIG. 2 is a cross-sectional view showing an example of the blower 140 installed in the manhole opening 116b
- FIG. 3 is a top view.
- Reference numeral 116a denotes an inner wall of a human hole, and an operator can enter and leave the human hole 116 with a lifting bracket (not shown).
- the blower 140 includes a frame body 143 and airflow generation means 144, and a plurality of airflow generation means 144 are arranged along the frame body 143.
- the frame body 143 is formed of, for example, metal, and has, for example, a ring shape.
- the shape of the frame 143 is not particularly limited.
- Examples of the outer shape of the frame 143 include, but are not limited to, a ring-shaped or arc-shaped outer shape that matches the shape of the human hole opening 116b.
- the frame 143 may have a shape such as a triangle, a square, a square such as a hexagon, an ellipse, or a horseshoe.
- the airflow generation means 144 generates an airflow 145 in the direction of the arrow in the figure.
- a blower provided with an electric fan can be exemplified.
- a DC fan can be exemplified as the airflow generation unit 144.
- the airflow generation means 144 is not limited to an electric fan or a DC fan, and is not particularly limited as long as it generates an airflow.
- FIG. 4 is a conceptual diagram showing an example of the airflow generation means 144.
- the airflow generation unit 144 includes, for example, an airflow generation source and an emission nozzle that emits the airflow.
- a DC fan 144a can be exemplified as a source of airflow, and the airflow is sent out from the outlet 144b of the DC fan 144a.
- the emission nozzle has a conical portion 144c that converges the airflow sent from the outlet 144b, and a cylindrical portion 144d that is located on the tip side of the conical portion 144c. By having the cylindrical portion 144d, it is possible to suppress the turbulence of the air flow while maintaining the wind speed of the air flow.
- the direction of the airflow 145 is adjusted so that the airflow 145 generated by the airflow generation means 144 flows along the virtual axis 147 passing through the virtual surface 146 around the frame 143.
- the virtual axis 147 is a center line that penetrates the center of the virtual surface 146 around the frame body 143 perpendicularly to the virtual surface 146.
- the airflow generating means 144 is installed on the frame 143 by the installation tool 148.
- the installation tool 148 may include an angle adjustment mechanism that adjusts the angle of the airflow generation unit 144 with respect to the disk surface of the frame 143 (the virtual surface 146 around the frame 143).
- the installation angle of the airflow generation means 144 is adjusted by the angle adjustment mechanism, and each of the plurality of airflow generation means 144 can be arranged toward one point on the normal line (virtual axis 147) standing at the center of the disk surface of the frame 143.
- the airflow generation unit 144 may have an exit nozzle that emits an airflow, and the exit nozzle may adjust the direction of the airflow 145.
- the installation tool 148 may have a clamp part that sandwiches the frame body 143. In this case, it is possible to make the airflow generating means 144 detachable from the frame body 143 and to adjust the angle of the airflow generating means 144 by the clamp portion. In addition, when the installation tool 148 has a clamp portion, the airflow generating means 144 is detachable from the frame body 143 by the clamp portion. Therefore, a plurality of frame bodies 143 having various apertures corresponding to human holes having various aperture diameters are prepared. In addition, the frame body 143 suitable for the opening diameter of the human hole is selected, and the airflow generating means 144 is attached to the selected frame body 143 by the clamp portion, so that it is possible to easily cope with human holes of various diameters.
- the number of airflow generation means 144 is four, and four airflow generation means 144 are arranged along the frame body 143 at equal intervals.
- the number of airflow generation means 144 is not limited to four, and may be any number as long as it is plural.
- the number of airflow generation means 144 is preferably 3 or more in consideration of the efficiency of air supply. The larger the number, the better the efficiency of air supply. Therefore, it is preferable to determine the number of airflow generation means 144 based on a balance between air supply efficiency and cost.
- the plurality of airflow generation means 144 are preferably arranged at symmetrical positions around the intersection of the virtual surface 146 and the virtual axis 147.
- the frame body 143 may be composed of a plurality of members. In this case, the frame 143 can be separated into a plurality of members during transportation. The frame 143 can be folded so that a plurality of members overlap each other. You may further have a fixing jig which fixes the frame 143 to the human hole opening part 116b. Safety can be improved by fixing the blower 140 to the opening of the human hole.
- Table 1 shows the results of an experiment in which a blower 140 is installed at one end of a pipe having an inner diameter of 600 mm and a length of 2 m, and the air volume at the other end of the pipe is measured.
- Experimental Examples 1 to 6 are cases where the blower 140 is applied, and Comparative Example 1 is a case where a conventional fan and duct are applied.
- the airflow generation means 144 is an electric blower, and the discharge port diameter is 24 mm.
- the number of discharge ports that is, the number of electric blowers was changed from 2 to 4, and the power supplied to the electric blower (total amount) was changed in the range of 650 W to 1820 W.
- the total amount of air flow (discharge air amount) at the discharge port of the electric blower is the total amount of the air flow 145 in the blower 140 and is as shown in Table 1.
- the multiplication factor is 1.6, and the effect of the present invention is not seen.
- Example 2 The length of the nozzle provided in the airflow generation means 144 was changed in the range of 100 mm to 300 mm, and the nozzle diameter (diameter) was changed in the range of 30 mm to 50 mm. As a result, the largest discharge wind speed of 27 m / s was obtained with a nozzle length of 100 mm and a nozzle diameter of 40 mm. However, under the conditions of the nozzle length of 100 mm and the nozzle diameter of 40 mm, the turbulence of the air flow at the nozzle outlet was large. Therefore, a nozzle having a shape in which a cylinder is added to the tip of the cone, the length of the cone portion being 100 mm and the length of the cylinder portion being 50 mm, was created. In this nozzle, the wind speed at the discharge port was maintained at the maximum wind speed of 27 m / s, and the turbulence of the air current was not observed.
- Table 2 shows the results of an experiment in which two air flow generating means 144 were installed at one end of a pipe having an inner diameter of 600 mm and a length of 2 m at different angles, and the average wind speed and air volume at the other end of the pipe were measured.
- the range of the focal position corresponds to a range in which the incident angle of the airflow discharged from the nozzle with respect to the tube cross section is from 16.7 degrees to 23.2 degrees. That is, it has been found that a favorable pipe outlet air volume can be obtained by setting the angle of the nozzle to the pipe cross section in the range of 16 degrees to 24 degrees.
- Example 4 shows the results of an experiment in which the average wind speed and the air volume at the other end of the pipe were measured by changing the number (number of nozzles) and arrangement of the air flow generation means 144 and the output of the air flow generation source (discharge air speed) in Example 2. Show.
- the nozzle arrangement indicates the position of the airflow generation means 144 in the frame 143.
- the airflow is generated in three, four, and six times symmetrical with respect to the virtual axis 147, respectively.
- Means 144 are arranged.
- Experimental Examples 16, 18, and 20 show experimental examples in which the axial symmetry is lower than those of Examples 15, 17, and 19, respectively.
- the angles (only acute angles) formed by each airflow generation means 144 are 30 degrees in Experimental Example 16, 40 degrees in Experimental Example 18, and 40 degrees and 50 degrees in Experimental Example 20.
- the nozzle arrangement of Experimental Examples 21 and 23 is the same as that of Experimental Examples 18 and 20, respectively, and the angle (only acute angle) formed by each airflow generation means 144 of Experimental Example 22 is 73 degrees.
- the nozzle arrangement as in Experimental Example 22 may be preferable because it does not hinder the gripping of the frame body 143.
- the nozzle arrangement of Experimental Example 22 can be adopted in consideration of the ease of lifting and lowering the operator rather than giving priority to the symmetry of the nozzle arrangement.
- the ventilation system 100 of the present invention it is possible to obtain an air volume exceeding the conventional level. Moreover, unlike the conventional fan type, the blower 140 of the ventilation system 100 does not require a flexible duct. For this reason, size reduction of an air blower is realizable. In addition, since the blower 140 of the present invention does not block the human hole opening as in the prior art, it is easy for an operator to enter and exit and to carry in and out articles, and it is not necessary to stop the operation of the blower 140 when carrying in and out. . Furthermore, an escape route in an emergency can be secured, and the operator's safety can be further improved.
- FIG. 5 is a sectional view showing another example of a ventilation system for a sewer pipe.
- the ventilation system 200 shown in FIG. 5 changes the direction of the air flow from the vertical direction to the horizontal direction at the bottom of one or both of the human hole 116 where the blower 140 is installed and the human hole 118 where the exhaust device 170 is installed.
- an air flow direction conversion means for converting from the horizontal direction to the vertical direction is installed.
- An airflow reflecting plate 202 can be exemplified as the airflow direction changing means. By such an air flow reflecting plate 202, the air flow is adjusted and the energy loss of the air flow that occurs when the direction of air flow is changed is reduced, thereby realizing a smoother flow. The flow velocity and air volume inside can be increased.
- the second airflow generation means 204 a normal fan type blower can be exemplified.
- the second air flow generation means 204 generates a second air flow 206 different from the air flow from the blower 140, and merges the second air flow 206 from a direction different from the air flow from the blower, thereby converting the direction of the air flow.
- the same airflow generation means 144 may be used.
- FIG. 8 is a sectional view showing still another example of a ventilation system for sewer pipes.
- the blower 140 of the present invention is installed in the air supply-side human hole 116 but also the blower 340 similar to the blower 140 of the present invention is installed in the exhaust-side human hole 118.
- the blower 340 of the present invention is also installed in the exhaust-side human hole 118, so that the exhaust performance is improved, the entry and exit of the worker and the carry-in / out of the articles are further facilitated, and the escape route in an emergency It is possible to secure more than one and to further improve the safety of the worker.
- FIG. 9 is a sectional view showing still another example of a ventilation system for a sewer pipe.
- a booster 402 is provided in the pipe rod 110.
- the booster 402 includes the same fans as the fans 140 and 340.
- the booster 402 generates an air flow in a direction that promotes the flow in the pipe rod 110.
- the booster 402 enhances the air flow in the pipe rod 110, and can further increase the safety of the operator.
- the blower 340 may be installed in the exhaust-side human hole 118 as in the ventilation system 300.
- the opening of the airflow generation unit 144 is continuously or continuously along the frame body. It may be arranged.
- an airflow generating means 144 having a slit-shaped opening supplying air to a flow path connected to the slit-shaped opening, and ejecting the air in the normal direction of the disk surface around the frame.
- An air flow may be generated in the normal direction of the disk surface so that the air flows around the surrounding air.
- the slit-like nozzle in this case may be one in which openings are continuously formed over the entire area of the frame, and the slit-like nozzle having an opening having an appropriate length is continuously opened. It may be arranged along the frame.
- FIG. 1 An example in which the frame body 143 adapted to the diameter of the human hole opening 116b is shown.
- a frame 143 having a diameter smaller than the diameter of the human hole opening 116b may be applied.
- the closing member 502 closes the gap between the periphery of the human hole opening 116b and the frame body 143, and can adapt the frame body 143 to the human hole opening 116b having a large diameter.
- the blower 140 may have an air flow reflecting member 602.
- the air flow reflecting member 602 is a flexible member such as nylon, for example, and changes the direction of the air flow from the vertical direction to the horizontal direction.
- the air flow reflecting member 602 is suspended from the lower portion of the human hole 116 by, for example, a string member 604 in a state where the air flow reflecting member 602 is installed in the human hole opening 116b.
- the air flow reflecting member 602 and the string member 604 can be stored compactly by being folded, and can be deployed simply by being installed at the manhole opening 116b and hanging down, which is convenient.
- the apparatus may further include an additive supply unit that supplies one or more additives selected from a fragrance, water, and steam to the air flowing into the airflow generation unit 144.
- an additive supply means a fragrance, water, or steam generation means may be simply placed at an air inlet or the like.
- supplying the fragrance it is possible to inform the worker who is working inside the tube rod 110 that the air is normally supplied. Further, by supplying water and steam, it is possible to protect the worker who is working inside the pipe rod 110 from drying.
- the pipe fence does not need to be underground, but the pipe rod and pipe constructed
- the above-described blower and ventilation system can be applied to a structure that does not allow traffic interruption at the entrance and exit of a tunnel or the like.
- the blower and ventilation system of the present invention are applied to a tunnel, it is not necessary to install a separate ventilation fan on the ceiling, etc., and it becomes possible to construct a tunnel structure small and to keep construction costs low. Is possible.
- DESCRIPTION OF SYMBOLS 100 Ventilation system, 102 ... Ground surface, 110 ... Pipe wall, 112 ... Wall surface, 114 ... Bottom, 116 ... Human hole, 116a ... Human hole inner wall, 116b ... Human hole opening, 118 ... Human hole, 120 ... Blocking curtain, 140 ... blower, 143 ... frame body, 144 ... airflow generating means, 144a ... DC fan, 144b ... outlet, 144c ... cone, 144d ... cylindrical part, 145 ... airflow, 146 ... virtual surface, 147 ... virtual axis, 148 DESCRIPTION OF SYMBOLS ... Installation tool, 170 ... Exhaust device, 172 ...
- Duct 200 ... Ventilation system, 202 ... Air flow reflector, 204 ... Second air flow generation means, 206 ... Second air flow, 300 ... Ventilation system, 340 ... Blower, 400 ... Ventilation system, 402 ... Booster, 502 ... Occlusion member, 602 ... Air flow reflecting member, 604 ... String material.
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Abstract
Description
気流発生手段144に備えるノズルの長さを100mm~300mmの範囲で変化させ、ノズルの口径(直径)を30mm~50mmの範囲で変化させた。その結果、ノズル長さ100mm、ノズル口径40mmで最も大きな吐出風速27m/sを得た。しかし、ノズル長さ100mm、ノズル口径40mmの条件では、ノズルの吐出口における気流の乱れが大きかった。そこで、円錐部の長さが100mm、円筒部の長さが50mmの、円錐先端に円筒を付加した形状のノズルを作成した。当該ノズルでは、吐出口における風速が最大風速である27m/sが維持され、かつ、気流の乱れが観測されなかった。
表3は、実施例2の気流発生手段144の数(ノズル数)および配置と気流発生源の出力(吐出風速)を変えて、管の他端における平均風速および風量を測定した実験の結果を示す。表3においてノズル配置は、気流発生手段144の枠体143における位置を示し、実施例15、17、19では、それぞれ仮想軸147に対して3回対称、4回対称、6回対称に気流発生手段144が配置されている。これに対し、実験例16、18、20では、それぞれ実施例15、17、19より軸対称性が低下した実験例を示す。各気流発生手段144がなす角度(鋭角のみ)は、実験例16では30度であり、実験例18では40度であり、実験例20では40度および50度である。実験例21および23のノズル配置は、それぞれ実験例18および20と同じであり、実験例22の各気流発生手段144がなす角度(鋭角のみ)は、73度である。
Claims (19)
- 枠体と、前記枠体に配置された単一または複数の気流発生手段と、を有し、
前記気流発生手段から発生した気流が、前記枠体を周辺とする仮想面を貫く仮想軸に沿って流れるよう、前記気流の方向が調整され、
前記気流が前記仮想軸の周辺の空気を巻き込んで流れることで、前記気流の総流量の2倍を超える風量を発生する
送風機。 - 前記仮想軸は、前記仮想面の中心点において前記仮想面と垂直に交わる
請求項1に記載の送風機。 - 前記枠体に、複数の前記気流発生手段が配置され、
前記複数の気流発生手段が発生するそれぞれの気流が、前記仮想軸上の一点に向けて流れるよう各気流の方向が調整されている
請求項1または請求項2に記載の送風機。 - 前記複数の気流発生手段が、前記仮想面と前記仮想軸の交点を中心とする対称な位置に配置されている
請求項3に記載の送風機。 - 前記気流発生手段を前記枠体に設置する設置具を有し、
前記設置具が、前記仮想面に対する前記気流発生手段の角度を調節する角度調節機構を有する
請求項1から請求項4の何れか一項に記載の送風機。 - 前記仮想面に対する前記気流の入射角が、16度以上24度以下である
請求項1から請求項5の何れか一項に記載の送風機。 - 前記気流発生手段が、前記気流の発生源と、前記気流を出射する出射ノズルと、を有し、
前記出射ノズルが、前記発生源から送出される気流を収束する錐部と、前記錐部の先端側に位置する筒部と、を有する
請求項1から請求項6の何れか一項に記載の送風機。 - 前記出射ノズルが、前記気流の方向を調節する方向調節機構を有する
請求項7に記載の送風機。 - 前記枠体を、人孔開口部に固定する固定治具をさらに有する
請求項1から請求項8の何れか一項に記載の送風機。 - 人孔開口部の周辺と前記枠体との隙間を塞ぐ閉塞部材をさらに有する
請求項1から請求項9の何れか一項に記載の送風機。 - 人孔開口部に設置された状態で、人孔内の下部に垂下する柔軟性の部材であって、空気流の方向を、垂直方向から水平方向に変換する空気流反射部材をさらに有する
請求項1から請求項10の何れか一項に記載の送風機。 - 前記気流発生手段に流入する空気に、芳香剤、水および蒸気から選択された1以上の添加物を供給する添加物供給手段をさらに有する
請求項1から請求項11の何れか一項に記載の送風機。 - 請求項1から請求項12の何れか一項に記載の送風機を用いた換気システムであって、
管渠、管路もしくは通路の入口もしくは出口、または、管渠もしくは管路に接続された人孔のうち、少なくとも1つの入口、出口または人孔に前記送風機が設置された
換気システム。 - 前記送風機が設置された入口、出口または人孔の底部に、空気流の方向を、垂直方向から水平方向または水平方向から垂直方向に変換する空気流方向変換手段を有する
請求項13に記載の換気システム。 - 前記空気流方向変換手段が、前記空気流を反射して方向を変換する空気流反射板である
請求項14に記載の換気システム。 - 前記空気流方向変換手段が、前記送風機からの空気流とは異なる第2空気流を発生する第2気流発生手段を備え、
前記第2空気流を前記送風機からの空気流とは異なる方向から合流させ、前記空気流の方向を変換する
請求項14に記載の換気システム。 - 前記送風機を設置した入口、出口または人孔とは異なる他の入口、出口または人孔の少なくとも1つに排気装置が設置されている
請求項13から請求項16の何れか一項に記載の換気システム。 - 前記送風機が設置された入口、出口または人孔より下流側にある最初の入口、出口または人孔に、前記排気装置が設置されている
請求項17に記載の換気システム。 - 前記排気装置が設置された入口、出口または人孔の底部に、空気流の方向を、垂直方向から水平方向または水平方向から垂直方向に変換する空気流方向変換手段を有する
請求項17または請求項18に記載の換気システム。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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US15/535,679 US20180087261A1 (en) | 2014-12-13 | 2015-12-08 | Blower and ventilating system |
EP15866777.4A EP3235964A4 (en) | 2014-12-13 | 2015-12-08 | Blower and ventilating system |
KR1020177019311A KR102434585B1 (ko) | 2014-12-13 | 2015-12-08 | 송풍기 및 환기 시스템 |
US16/953,816 US20210071405A1 (en) | 2014-12-13 | 2020-11-20 | Blower and ventilation system |
Applications Claiming Priority (2)
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JP2014252550A JP6571931B2 (ja) | 2014-12-13 | 2014-12-13 | 送風機および換気システム |
JP2014-252550 | 2014-12-13 |
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Application Number | Title | Priority Date | Filing Date |
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US15/535,679 A-371-Of-International US20180087261A1 (en) | 2014-12-13 | 2015-12-08 | Blower and ventilating system |
US16/953,816 Continuation US20210071405A1 (en) | 2014-12-13 | 2020-11-20 | Blower and ventilation system |
Publications (1)
Publication Number | Publication Date |
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WO2016093234A1 true WO2016093234A1 (ja) | 2016-06-16 |
Family
ID=56107412
Family Applications (1)
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PCT/JP2015/084408 WO2016093234A1 (ja) | 2014-12-13 | 2015-12-08 | 送風機および換気システム |
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Country | Link |
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US (2) | US20180087261A1 (ja) |
EP (1) | EP3235964A4 (ja) |
JP (1) | JP6571931B2 (ja) |
KR (1) | KR102434585B1 (ja) |
TW (1) | TWI649484B (ja) |
WO (1) | WO2016093234A1 (ja) |
Families Citing this family (2)
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JP2018031129A (ja) * | 2016-08-22 | 2018-03-01 | 住友金属鉱山株式会社 | 坑内空調支援システム |
CN107023065A (zh) * | 2017-05-02 | 2017-08-08 | 陆彬燕 | 一种市政管道用新型通风装置 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4925493A (ja) * | 1972-06-30 | 1974-03-06 | ||
JPS55137821U (ja) * | 1979-03-22 | 1980-10-01 | ||
JPS55150443A (en) * | 1979-04-05 | 1980-11-22 | Furukawa Electric Co Ltd:The | Ventilating method for tunnel |
JPH0419400A (ja) * | 1990-05-11 | 1992-01-23 | Hisamoto Suzuki | 送風装置 |
JPH06313603A (ja) * | 1993-02-17 | 1994-11-08 | Mitsubishi Electric Corp | 送風機 |
JP2731145B2 (ja) * | 1987-02-07 | 1998-03-25 | 西村電機株式会社 | 吸引装置 |
WO2013054861A1 (ja) * | 2011-10-13 | 2013-04-18 | 東京都下水道サービス株式会社 | 送風機および換気システム |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0894139A (ja) * | 1994-09-21 | 1996-04-12 | Matsushita Seiko Co Ltd | 誘引換気装置 |
JPH0989344A (ja) * | 1995-09-25 | 1997-04-04 | Mitsubishi Electric Corp | 送風機 |
JP2000104966A (ja) | 1998-09-29 | 2000-04-11 | Yoshida Komuten:Kk | マンホール用給排気装置 |
JP2003328378A (ja) | 2002-05-14 | 2003-11-19 | Kantool Giken Kk | 地下構造物用換気装置 |
JP6208446B2 (ja) * | 2013-03-27 | 2017-10-04 | 東京都下水道サービス株式会社 | 送風機支持体および換気システム |
TWM485966U (zh) * | 2014-01-16 | 2014-09-11 | Jinwefon Electric Co Ltd | 風扇結構 |
-
2014
- 2014-12-13 JP JP2014252550A patent/JP6571931B2/ja active Active
-
2015
- 2015-12-08 EP EP15866777.4A patent/EP3235964A4/en not_active Withdrawn
- 2015-12-08 WO PCT/JP2015/084408 patent/WO2016093234A1/ja active Application Filing
- 2015-12-08 US US15/535,679 patent/US20180087261A1/en not_active Abandoned
- 2015-12-08 KR KR1020177019311A patent/KR102434585B1/ko active IP Right Grant
- 2015-12-14 TW TW104141912A patent/TWI649484B/zh active
-
2020
- 2020-11-20 US US16/953,816 patent/US20210071405A1/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4925493A (ja) * | 1972-06-30 | 1974-03-06 | ||
JPS55137821U (ja) * | 1979-03-22 | 1980-10-01 | ||
JPS55150443A (en) * | 1979-04-05 | 1980-11-22 | Furukawa Electric Co Ltd:The | Ventilating method for tunnel |
JP2731145B2 (ja) * | 1987-02-07 | 1998-03-25 | 西村電機株式会社 | 吸引装置 |
JPH0419400A (ja) * | 1990-05-11 | 1992-01-23 | Hisamoto Suzuki | 送風装置 |
JPH06313603A (ja) * | 1993-02-17 | 1994-11-08 | Mitsubishi Electric Corp | 送風機 |
WO2013054861A1 (ja) * | 2011-10-13 | 2013-04-18 | 東京都下水道サービス株式会社 | 送風機および換気システム |
Non-Patent Citations (1)
Title |
---|
See also references of EP3235964A4 * |
Also Published As
Publication number | Publication date |
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KR102434585B1 (ko) | 2022-08-19 |
EP3235964A4 (en) | 2018-10-10 |
JP2016113798A (ja) | 2016-06-23 |
US20210071405A1 (en) | 2021-03-11 |
JP6571931B2 (ja) | 2019-09-04 |
EP3235964A1 (en) | 2017-10-25 |
TW201641787A (zh) | 2016-12-01 |
US20180087261A1 (en) | 2018-03-29 |
TWI649484B (zh) | 2019-02-01 |
KR20180015108A (ko) | 2018-02-12 |
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