JP2017009283A - Fluid conveying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To convey humid air to a target position without directly blowing the humid air to the target position.SOLUTION: A humidifier includes a feed water tank 3, a heater 7, an air blower fan 10, a humid wind duct 20, a humid air inlet 21, a conveyance wind inlet 22, a humid wind blowout port 23, a guiding wind duct 30, a guiding wind blowout port 31, a wind direction guide 32, a control section 40 and the like. During an operation of the humidifier, humid air P generated by the heater 7 and conveyance wind Q are mixed with each other in the humid wind duct 20 to generate humid wind R. The generated humid wind R is blown out from the humid wind blowout port 23 to outside. The guiding wind duct 30 is disposed on the upper side of the humid wind duct 20 so as to at least overlap with the humid wind duct, and blows out guide wind S to suppress lifting of the humid wind R.SELECTED DRAWING: Figure 2

Description

    The present invention relates to a fluid conveyance device used as, for example, a humidifier.

  As a prior art, for example, as described in Patent Document 1, a humidifier having a function of conveying high-humidity air to a position where a user is present is known. Prior art humidifiers are used in scenes such as personal use at desks, beauty and sleep.

Japanese Patent Laid-Open No. 7-4725

  In the humidifier described in Patent Document 1 described above, high-humidity air is mixed with wind and blown out toward the position where the user is. However, in this configuration, high-humidity air is diffused between the time when the wind blows and the time when it reaches the position of the user. For this reason, in the prior art, there is a problem that directivity when transporting high-humidity air is weak and the transport distance is short.

  On the other hand, a method is conceivable in which heated steam is squeezed and injected by a nozzle to add thrust to the injected steam and increase the directivity of the steam. However, in this method, the hot jet steam may directly hit the user and give discomfort. In addition, since the temperature of the steam is higher than that of the surroundings, the steam may rise after being blown out and warp from the user, and there is a problem that it is difficult to stably humidify the surroundings of the user.

  The present invention has been made to solve the above-described problems, and is a fluid capable of efficiently conveying high-humidity air to the target position without directly blowing high-humidity air to the target position. It is to provide a transport device.

The fluid conveyance device according to the present invention includes a fluid storage unit that stores fluid, a high-humidity air generation unit that generates high-humidity air from the fluid stored in the fluid storage unit, and air that serves as conveyance air and guide air, respectively. A blowing section to be sent out, a duct into which the conveying air and the high humidity air flow, a high humidity air duct that blows out the high humidity air mixed with the conveying air and the high humidity air to the outside of the fluid conveying device, and the high humidity air A high-humidity air inlet that opens to the lower surface of the duct and allows high-humidity air to flow into the high-humidity air duct is disposed above the high-humidity air duct so that at least part of the high-humidity air duct overlaps. A high-humidity air duct having a space for mixing the conveying air and the high-humidity air downstream of the high-humidity air inlet.

  According to the present invention, it is possible to suppress the rise of the high-humidity air using the guide air and give the high-humidity air a desired directivity. Therefore, high-humidity air can be efficiently transported toward the humidification target located in the horizontal direction and obliquely downward as viewed from the fluid transport device, and the humidification performance can be stably exhibited near the user. Further, by transporting the high-humidity air downward from the target position, the high-humidity air can be transported to the target position. Thereby, the surroundings of the target position can be humidified without blowing high-humidity air directly on the target position.

It is a perspective view which shows the humidifier as a fluid conveyance apparatus by Embodiment 1 of this invention. It is a longitudinal cross-sectional view of the humidifier shown in FIG. It is the longitudinal cross-sectional view which looked at the humidifier from the arrow AA direction in FIG. It is the cross-sectional view which looked at the humidifier from the arrow BB direction in FIG. It is the cross-sectional view which looked at the humidifier from the arrow CC direction in FIG. In Embodiment 1 of this invention, it is a flowchart which shows operation | movement of a humidifier. It is explanatory drawing which shows the effect of the humidifier by Embodiment 1 of this invention. In Embodiment 1 of this invention, it is a principal part expansion perspective view which shows the modification which provided the baffle plate in the side part of the high-humidity air duct. It is the longitudinal cross-sectional view which looked at the humidifier by Embodiment 2 of this invention from the same position as FIG. It is a perspective view which shows the humidifier by Embodiment 3 of this invention. It is a longitudinal cross-sectional view of the humidifier shown in FIG. It is the longitudinal cross-sectional view which looked at the humidifier from the arrow AA direction in FIG. It is a perspective view which shows the humidifier by Embodiment 4 of this invention. It is a longitudinal cross-sectional view of the humidifier shown in FIG. It is the longitudinal cross-sectional view which looked at the humidifier from the arrow AA direction in FIG.

  Embodiments of the present invention will be described below with reference to the drawings. In each embodiment, a humidifier is illustrated as a fluid conveyance device. Moreover, the same code | symbol is attached | subjected to the element which is common in each figure, and the overlapping description is abbreviate | omitted. In addition, the present invention includes all combinations of configurations that can be combined among the configurations described in the following embodiments.

Embodiment 1 FIG.
First, Embodiment 1 of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing a humidifier according to Embodiment 1 of the present invention. 2 is a longitudinal sectional view of the humidifier shown in FIG. 1, and FIG. 3 is a longitudinal sectional view of the humidifier as viewed from the direction of arrows AA in FIG. 4 shows a cross-sectional view of the humidifier as seen from the direction of arrow BB in FIG. 2, and FIG. 5 shows a cross-sectional view of the humidifier as seen from the direction of arrow CC in FIG. Show.

  As shown in FIGS. 1 and 2, the humidifier of the present embodiment includes a casing 1, a water supply tank 3, a heating water storage unit 6, a heater 7, a blower fan 10, a high-humidity air duct 20, a guide air duct 30, A control unit 40 and the like are provided. In this specification, unless otherwise specified, the right side in FIG. 2 is referred to as the front side of the humidifier, and the left side in FIG. 2 is referred to as the rear side of the humidifier. Further, in the following description, air containing steam generated by the heater 7 is expressed as high humidity air P, and air blown from the blower fan 10 to the high humidity air duct 20 is expressed as conveyance air Q. The airflow in which the humid air P and the carrier air Q are mixed is expressed as high humidity air R, and the air blown from the blower fan 10 to the guide air duct 30 is expressed as guide air S.

  The casing 1 constitutes the outer shell of the humidifier, and is formed, for example, as a rectangular housing. A lid 2 is detachably attached to the upper surface of the casing 1. An intake port for taking air into the casing 1 from the outside is formed in the rear surface portion of the casing 1. As shown in FIG. 2, the water supply tank 3 constitutes a fluid storage part for storing water as a fluid, and is accommodated in the upper part of the rearmost part in the casing 1, for example. The water supply tank 3 is detachably connected to the upper side of the water supply unit 4 so that the water supply tank 3 can be taken out of the casing 1 and replenished with water.

  The lower surface of the water supply tank 3 is provided with a normally closed water supply valve that opens when connected to the water supply unit 4 and closes when removed from the water supply unit 4. The lower side of the water supply unit 4 is connected to the lower surface of the heating water storage unit 6 via a water supply passage 5 bent in an upward substantially U-shape. The water in the water supply tank 3 is supplied to the heating water storage section 6 through the water supply section 4 and the water supply passage 5 as shown by a solid line in FIG. At this time, the water supply unit 4 (or the water supply valve) can adjust the amount of water supplied to the heating water storage unit 6. In addition, the water supply unit 4 is provided with a water level detection unit for detecting the water level in the water supply tank 3.

  The water storage section 6 for heating and the heater 7 generate high-humidity air P from the water stored in the water supply tank 3. For example, the high-humidity air generation according to the present embodiment is arranged on the front side in the casing 1. Part. The heating water storage unit 6 is a part for storing the heating water supplied from the water supply tank 3, and is formed in, for example, a cylindrical shape extending in the vertical direction. A water supply passage 5 is connected to the lower surface of the heating water storage section 6. A high-humidity air passage 8 extending in the vertical direction is connected to the upper surface portion of the heating water reservoir 6. The heater 7 generates water vapor (high humidity air P) by heating the water in the heating water storage unit 6 and constitutes the heating unit of the present embodiment. The heater 7 is formed in, for example, a substantially annular shape and surrounds the outer peripheral side of the heating water storage section 6.

  The blower fan 10 sucks air from the intake port of the casing 1 and blows out the air from the blower port, and is configured by an electric fan, for example. In the casing 1, the blower fan 10 is disposed between the water supply tank 3 and the heating water storage unit 6, for example, with the blower port facing upward, and is surrounded by the water supply passage 5 from below. A connection duct 11 extending in the vertical direction is connected to the blower opening of the blower fan 10. The connection duct 11 is formed by integrating a carrier wind inflow passage 12 and a guide wind inflow passage 13 that extend in parallel to each other in the vertical direction.

  The conveyance air inflow passage 12 connects the blower opening of the blower fan 10 and the conveyance air inlet 22 of the high-humidity air duct 20 described later. The guide air inflow passage 13 connects the air outlet of the blower fan 10 and the most upstream part of the guide air duct 30 described later. As shown in FIG. 2, a part of the air sent out from the blower fan 10 flows into the transport wind inflow passage 12 to become the transport wind Q, and the remaining air flows into the guide wind inflow passage 13 to enter the guide wind. S. In this manner, the blower fan 10 constitutes a blower unit that sends out air that becomes the conveying wind Q and the guide wind S, respectively. In the present embodiment, the case where both the conveying wind Q and the guide wind S are generated by the single blower fan 10 is illustrated. However, this invention is not restricted to this, You may provide two ventilation parts which consist of the ventilation part which produces | generates the conveyance wind Q, and the ventilation part which produces | generates the guide wind S. FIG.

(High humidity air duct)
Next, a high-humidity air duct 20 and a guide air duct 30 that are one of the features of the present invention will be described with reference to FIGS. First, as shown in FIG. 2, the high-humidity air duct 20 mixes the high-humidity air P flowing in from the high-humidity air passage 8 and the conveying air Q flowing in from the conveying-air inflow passage 12 so that the high-humidity air R And the high-humidity air R is blown out forward of the casing 1. As shown in FIGS. 2, 3 and 5, the high-humidity air duct 20 has an upper surface portion 20A, a lower surface portion 20B, left and right side surface portions 20C and 20C, and a back wall portion 20D, and is elongated and has a substantially rectangular shape as a whole. Is formed. The length direction of the high-humidity air duct 20 coincides with the flow direction and the blowing direction of the high-humidity air R.

  The upper side of the high-humidity air duct 20 is formed in a quadrangular shape by an upper surface portion 20A, a lower surface portion 20B, and left and right side surface portions 20C and 20C. As shown in FIG. 5, the left and right side surface portions 20 </ b> C and 20 </ b> C face each other in a parallel state with the flow of the high humidity air R interposed therebetween. Further, as shown in FIGS. 2 and 3, the lower surface portion 20 </ b> B of the high-humidity air duct 20 is configured by, for example, four inclined surfaces inclined obliquely downward from the four wall surfaces of the high-humidity air duct 20 toward the center. ing. A high humidity air inlet 21 through which the high humidity air P flows into the high humidity air duct 20 is opened at the lowest portion of the lower surface portion 20B.

  As shown in FIG. 5, the high-humidity air inlet 21 is formed, for example, in a rectangular shape that is elongated in the width direction of the high-humidity air duct 20. It is set smaller than the width dimension. In the present specification, the direction perpendicular to the flow direction of the high-humidity air R and the guide air S in the horizontal direction is denoted as “width direction”, and the dimension in the width direction is denoted as “width dimension”. The high-humidity air inlet 21 is disposed above the heating water reservoir 6. As a result, the high-humidity air passage 8 connects the upper surface portion of the heating reservoir 6 and the high-humidity air inlet 21 in a state where the high-humidity air P extends in the vertical direction so that the high-humidity air P can rise smoothly. . Further, the high-humidity air inlet 21 opens at a position closer to the upstream side than, for example, half of the entire length of the high-humidity air duct 20 extending in the front-rear direction. For this reason, sufficient space for generating the uniform high-humidity air R by mixing the high-humidity air P and the conveyance air Q is secured on the downstream side of the high-humidity air inlet 21.

  As shown in FIGS. 2 and 5, a conveying wind inlet 22 that opens to the lower surface portion 20 </ b> B or the back wall portion 20 </ b> D is formed at the most upstream portion of the high-humidity air duct 20. The conveyance air inlet 22 is connected to the conveyance air inflow passage 12 and allows the conveyance air Q to flow into the high-humidity air duct 20 from the conveyance air inflow passage 12. The conveyance air inlet 22 is disposed upstream of the high-humidity air inlet 21. Further, the width dimension of the conveying air inlet 22 is set larger than the width dimension of the high-humidity air inlet 21. Furthermore, the width dimension of the conveyance air inlet 22 is set to a size larger than half the width dimension of the high-humidity air duct 20 at the opening position of the conveyance air inlet 22, that is, the width dimension of the back wall portion 20D. In addition, in FIG. 5, the case where the width dimension of the conveyance wind inlet 22 and back wall part 20D is set equally is illustrated.

  Further, the conveying air inlet 22 opens at a position higher than the high-humidity air inlet 21 formed at the lowest part of the lower surface portion 20B of the high-humidity air duct 20. And the part located between the conveyance wind inlet 22 and the high-humidity air inlet 21 in the lower surface part 20B is slanted toward the high-humidity air inlet 21 from the conveyance wind inlet 22 as shown in FIG. It is comprised by the inclined surface part 20E inclined downward. On the other hand, as shown in FIG. 5, at least a part of the left and right side surface portions 20 </ b> C includes parallel side surface portions 20 </ b> G arranged in parallel with each other on the upper side of the high-humidity air inlet 21. In the above configuration, it is not always necessary to incline the entire lower surface portion 20B. Moreover, each side part 20C forms only the site | part located in the upper side of the high-humidity air inflow port 21 in parallel, and does not need to form another site | part in parallel.

  As shown in FIGS. 1, 2, and 5, a square-shaped high-humidity air outlet 23 that opens to the front surface of the casing 1 is provided at the most downstream portion of the high-humidity air duct 20. The high-humidity air outlet 23 blows out the high-humidity air R to the outside of the casing 1 and is covered with a lattice mesh cover 24. Moreover, the part located between the high-humidity air outlet 23 and the high-humidity air inlet 21 in the lower surface portion 20B of the high-humidity air duct 20 is directed from the high-humidity air outlet 23 toward the high-humidity air inlet 21. The inclined surface portion 20F is inclined obliquely downward.

  In the vicinity of the high-humidity air outlet 23, a proximity sensor for detecting that a person has approached the high-humidity air outlet 23 is provided. The proximity sensor includes a sensitive sensor set on the mesh cover 24, an infrared sensor installed on the lower surface of a wind direction guide 32 described later, and the like. In addition, a temperature detection unit that detects the temperature of the high-humidity air R is provided inside the high-humidity air duct 20. In addition, although the mesh cover 24 was comprised with the grid | lattice-like mesh material, it is good also as another structure in this invention.

  The high-humidity air duct 20 configured as described above extends in the front-rear direction of the humidifier in a state where the high-humidity air duct 20 is arranged substantially horizontally, and the high-humidity air outlet 23 is a plane perpendicular to the extending direction of the high-humidity air duct 20 ( That is, it opens on the front surface portion of the casing 1. As a result, the high-humidity air R is configured to blow out horizontally from the high-humidity air outlet 23 toward the front of the humidifier. The blown high humidity air R maintains a blowout range that is substantially equal to the width of the high humidity air duct 20 in the horizontal direction, as indicated by a dashed line in FIG.

(Guided wind duct)
Next, the guide air duct 30 will be described. The guide air duct 30 blows out the guide air S flowing in from the guide air inflow passage 13 to the front of the casing 1. As shown in FIGS. 2 to 4, the guide air duct 30 has an upper surface portion 30 </ b> A, a lower surface portion 30 </ b> B, and left and right side surface portions 30 </ b> C and 30 </ b> C, and is formed in a substantially long and narrow rectangular shape as a whole. The guide air duct 30 is disposed almost horizontally at a position overlapping the upper side of the high-humidity air duct 20 in the casing 1 and extends in the front-rear direction of the humidifier. The length direction of the guide air duct 30 coincides with the flow direction of the high-humidity air R as shown in FIGS. In the present embodiment, the upper surface portion 20A of the high-humidity air duct 20 and the lower surface portion 30B of the guide air duct 30 are shared, but in the present invention, the upper surface portion 20A and the lower surface portion 30B are separated from each other. You may comprise by.

  A guide wind inflow passage 13 is opened at the most upstream portion of the guide wind duct 30. As shown in FIGS. 2 and 4, a guide wind outlet 31 for blowing the guide wind S to the outside of the casing 1 is provided at the most downstream portion of the guide wind duct 30. The guide air outlet 31 is open to the front surface of the casing 1 below the high-humidity air outlet 23. Moreover, the guide wind duct 30 is provided with the wind direction guide 32 which sets the blowing direction of the guide wind S diagonally downward as shown in FIG.1 and FIG.2. The wind direction guide 32 is formed of, for example, a plate material having a width dimension similar to that of the guide wind outlet 31 and protrudes obliquely downward from the upper opening end of the guide wind outlet 31 toward the front.

  Note that the wind direction guide 32 is preferably inclined downward from the position where the user or the like is present, as viewed from the guide wind outlet 31. Thereby, as will be described later, the high-humidity air R can be conveyed without blowing the air directly to the user or the like. Further, as shown in FIG. 2, the portion to which the wind direction guide 32 is attached may be the upper surface portion 30 </ b> A of the guide air duct 30 or the front surface portion of the casing 1. Further, the present invention does not necessarily require the wind direction guide 32. That is, in the present invention, for example, at least the downstream portion of the entire length of the guide air duct 30 is inclined obliquely downward, or only the upper surface portion 30A is inclined obliquely downward, whereby the guide air S is blown obliquely downward. It is good.

  Further, as shown in FIG. 4, the portion located in the upstream portion of the side surface portions 30C and 30C of the guide air duct 30 is formed with a narrow side surface portion 30D opposed to each other in parallel with the flow of the guide air S interposed therebetween. 30D. The spacing between the narrow side surfaces 30 </ b> D is set to be smaller than the width dimension of the high-humidity air duct 20. Moreover, the part located in the downstream of each narrow side part 30D among the side parts 30C and 30C is comprised by the expansion parts 30E and 30E expanded in the substantially V shape toward the downstream. The facing interval of each expanding portion 30E is set so as to gradually increase from the upstream side toward the downstream side, and is maximized at the opening position of the guide air outlet 31. That is, the guide air duct 30 is formed wider on the downstream side than on the upstream side.

  From the above, the guide wind duct 30 changes the wind direction of the guide wind S by the wind direction guide 32 and blows the guide wind S diagonally downward from the upper side of the high humidity wind duct 20 toward the flow of the high humidity wind R. It is configured. Further, as shown by a two-dot chain line in FIGS. 4 and 5, the guide wind S is blown out so as to spread in a substantially fan shape in the horizontal direction by the action of each expanding portion 30 </ b> E. The blowing range of the guide wind S is set so as to overlap the blowing range of the high-humidity air R from above and wider than the blowing range of the high-humidity air R. In the present invention, it is not always necessary to dispose the entire guide wind duct 30 above the high-humidity air duct 20, and at least a portion near the guide air outlet 31 in the guide air duct 30 is located above the high-humidity air duct 20. What is necessary is just to arrange | position.

  Next, the control system of the humidifier will be described. The system according to the present embodiment includes a control unit 40 that controls the humidifier, and an operation unit 41 for the user to operate the humidifier. The control unit 40 is disposed, for example, on the front side of the casing 1, and includes a storage circuit having a ROM, a RAM, a nonvolatile memory, and the like, and an arithmetic processing unit (for executing various control programs stored in the storage circuit). CPU), an input / output circuit for inputting / outputting signals to / from the arithmetic processing unit, and a timer circuit for measuring time.

  A sensor system (not shown) that acquires information necessary for controlling the humidifier is connected to the input side of the control unit 40. The sensor system includes a water level detection unit that detects the water level in the water supply tank 3, a temperature detection unit that detects the temperature of the high-humidity air R, a humidity detection unit that detects the humidity around the humidifier, and the humidifier. A human body detection unit that detects a person, a proximity sensor that detects that a person approaches the high-humidity air outlet 23, and the like are included. The heater 7 and the blower fan 10 are connected to the output side of the control unit 40. The operation unit 41 includes a power switch of the humidifier and switches for performing various operations and settings, and is communicably connected to the control unit 40.

(Humidifier operation)
The humidifier according to this embodiment has the above-described configuration. Next, the operation of the humidifier will be described with reference to FIGS. 2 and 6. FIG. 6 is a flowchart showing the operation of the humidifier in the first embodiment of the present invention. In the routine shown in this figure, first, in step S1, when the power switch of the operation unit 41 is turned on, the power supply of the humidifier is turned on and the humidification operation is started.

  Next, in step S2, the heater 7 is activated (ON) by the control unit 40. As a result, the water in the heating water reservoir 6 is heated by the heater 7 to generate high-humidity air P containing steam. Since the generated high-humidity air P has a high temperature and is light, the high-humidity air P rises vertically in the high-humidity air passage 8 and flows into the high-humidity air duct 20 from the high-humidity air inlet 21 as shown in FIG. As described above, the high humidity air inlet 21 is disposed right above the heating water storage section 6 and the high humidity air passage 8 is set up vertically, so that the high humidity air P generated in the heating water storage section 6 can be It can be smoothly introduced into the wind duct 20.

  Next, when sufficient time has passed since the heater 7 was started and the high humidity air P is stably generated, the blower fan 10 is started (ON) by the control unit 40 in step S3. . Thereby, the blower fan 10 sends the conveyance wind Q into the conveyance wind inflow passage 12 and also sends the guide wind S into the guidance wind inflow passage 13. The conveyance air Q flows into the high humidity air duct 20 from the conveyance air inlet 22 and circulates in the high humidity air duct 20 forward while colliding with the high humidity air P and mixing. Thereby, the high-humidity air P and the conveyance wind Q become the high-humidity air R which has the directivity toward the front. The high-humidity air R is blown out horizontally from the high-humidity air outlet 23 and is conveyed toward a humidification target such as a user.

  On the other hand, the guide wind S flows into the guide wind duct 30 from the guide wind inflow passage 13 and flows toward the guide wind outlet 31. At the guide wind outlet 31, the wind direction guide 32 changes the wind direction of the guide wind S to be obliquely downward. Further, the guide air S reaches the guide air outlet 31 while spreading in the left and right directions between the widened portions 30E after passing through the narrow side portions 30D at a high flow rate. As a result, the guide wind S is blown off from the guide wind outlet 31 obliquely downward and spreads in a substantially fan-shaped blowout range so as to cover the high humidity air R from above, and suppresses the high humidity air R from above. As a result, an increase in the high humidity air R can be suppressed as will be described later.

  Next, in step S4, first, detection of the human body, detection of the distance to the human body, and detection of the humidity in the room are executed by the sensor system. Then, for example, the operation state of the humidifier is adjusted based on the detection result by the sensor system and the setting of the operation condition by the user. As a specific example, the control unit 40 stores in advance characteristic data indicating, for example, the relationship between the humidity at the humidifier position, the distance to the user, and the humidity at the user position. . The control unit 40 estimates the humidity at the user's position from the characteristic data based on the humidity and distance actually detected by the sensor system. And based on the estimated humidity, the operation state of a humidifier is adjusted by carrying out intermittent operation of the heater 7, the ventilation fan 10, etc., for example. For example, the control unit 40 is configured to turn on the heater 7 when the estimated humidity falls below an appropriate humidity range, and to turn off the heater 7 when the estimated humidity exceeds the humidity range. It is good.

  Next, in step S5, it is determined whether or not to turn off the power to the humidifier based on various preset conditions. As a specific example, when at least one of the following conditions (1) to (5) is satisfied, the process proceeds to step S6, and the power supply of the humidifier is turned off. On the other hand, if all of the conditions (1) to (5) are not satisfied, the processes of steps S4 and S5 are repeated.

Condition (1) Is the power switch turned off by the user?
Condition (2) Has the time set for the timer elapsed?
Condition (3) Has the water storage capacity in the water supply tank 3 become zero?
Condition (4) Has the temperature in the high-humidity air duct 20 increased beyond the allowable range?
Condition (5) Has the human body contacted the high-humidity air outlet 23 or the like?

  As described above in detail, according to the present embodiment, the guide air duct 30 is configured to blow the guide air S obliquely downward from the upper side of the high humidity air duct 20 toward the flow of the high humidity air R. The following effects can be obtained. FIG. 7 is an explanatory view showing the effect of the humidifier according to Embodiment 1 of the present invention. First, in the case where only the high-humidity air is blown out from the humidifier as in the prior art, there is a tendency that the high-humidity air having a temperature higher than that of the surrounding air is blown forward and then rises. Therefore, in this case, the path of the high humidity air is warped upward from the target position, and it becomes difficult to humidify the user's surroundings. On the other hand, in this embodiment, since the guide air S is blown obliquely downward from the upper side of the high-humidity air R, the increase in the high-humidity air R can be suppressed from the upper side by the guide air S.

  Thereby, the rise of the high humidity wind R can be suppressed using the guide wind S, and desired directivity can be given to the high humidity wind R. Therefore, the high-humidity air R can be efficiently transported toward the humidification target located in the horizontal direction and obliquely downward as viewed from the humidifier, and the humidification performance can be stably exhibited in the vicinity of the user. In particular, the high-humidity air R is preferably transported downward from the position of the user. This is because the high-humidity air R transported in this manner gradually rises toward the user after reaching the lower side of the user. As a result, the user's surroundings can be humidified using the high-humidity air R having a gentle flow, and it is possible to avoid a feeling of blowing or an uncomfortable feeling caused by cold due to the high-humidity air R directly hitting the user. it can.

  Further, by suppressing the increase in the high humidity air R, the high humidity air outlet 23 can be provided at a position higher than the conventional one. Even in a state where the high-humidity air outlet 23 is provided at a high position, for example, the high-humidity air R can be stably conveyed toward a target position close to the floor surface, and user convenience can be improved. .

  In the present embodiment, the high-humidity air R is blown out in the horizontal direction, and the guide air S is blown out obliquely downward. However, the present invention is not limited to this, and the blowing direction of the high-humidity air R is set to be inclined obliquely downward, and the blowing direction of the guide air S is obliquely downward with a larger inclination angle than the blowing direction of the high-humidity air R. It is good also as a structure which makes it incline to. According to this configuration, the high-humidity air R can be conveyed toward a position closer to the floor surface while sufficiently exerting the above-described effect of suppressing the high-humidity air R.

  Further, as shown in FIG. 5, the blowing range of the guide wind S is set to be wider than the blowing range of the high-humidity air R in a state where it overlaps the blowing range of the high-humidity air R. According to this setting, even if the high humidity wind R blown out diffuses and spreads, the high humidity wind R can be stably suppressed from above by the guide wind S. In particular, since the blowing area of the guide wind S is widened by the respective expanding portions 30E of the guide wind duct 30, even if the width of the guide wind duct 30 is small, the blowout area can be greatly widened. In the present invention, for example, the facing interval between the side surface portions 30C of the guide air duct 30 may be widened in a step shape of one or more steps from the upstream side to the downstream side. Moreover, it is good also as a structure which forms the guide air duct 30 in a fixed width dimension over the full length, and sets this width dimension larger than the high-humidity air duct 20. Also by these structures, the effect similar to the expansion part 30E can be acquired.

  Further, the high-humidity air inlet 21 is configured to open at the lower surface 20B of the high-humidity air duct 20, preferably at the lowest position of the lower surface 21B. Thereby, the high-humidity air P can be smoothly introduced into the high-humidity air duct 20 using the characteristic that the high-temperature high-humidity air P rises, and the high-humidity air P and the conveying air Q can be mixed efficiently. . Further, even when the high humidity air P and the conveying air Q are brought into contact with each other in the high humidity air duct 20 and condensed water is generated, the condensed water is caused to flow down from the high humidity air inlet 21 to the heating reservoir 6. It can be recovered naturally and the condensed water can be easily reused.

  Further, the conveying air inlet 22 and the high-humidity air outlet 23 are opened at positions higher than the high-humidity air inlet 21, respectively. Further, on the lower surface portion 20B of the high-humidity air duct 20, there are an inclined surface portion 20E inclined obliquely downward from the conveying air inlet 22 toward the high-humidity air inlet 21, and a high-humidity air inlet 21 from the high-humidity air outlet 23. An inclined surface portion 20F that is inclined obliquely downward is formed. Thereby, even when dew condensation water is generated in the high-humidity air duct 20, it is possible to prevent the dew condensation water from entering the blower fan 10 side from the conveying wind inlet 22 and protect the blower fan 10 from the dew condensation water. it can. Moreover, it is possible to prevent the condensed water from dripping or blowing out from the high-humidity air outlet 23. And the dew condensation water in the high-humidity air duct 20 can be efficiently collected in the high-humidity air inlet 21.

  Further, each side surface portion 20C of the high-humidity air duct 20 is formed with parallel side surface portions 20G arranged in parallel with each other on the upper side of the high-humidity air inlet 21. As a result, the flow of the conveying air Q that collides with the high humidity air P rising from the high humidity air inlet 21 is made uniform on a plane perpendicular to the flow, and the high humidity air P and the conveying air Q are biased. It can mix so that it may not be, and can produce | generate homogeneous high-humidity air R.

  In addition, in this invention, as shown in FIG. 8, it is good also as a structure which provides one or several baffle plates in each side part 20C (parallel side part 20G). FIG. 8 is an essential part enlarged perspective view showing a modification in which a rectifying plate is provided on a side surface portion of the high-humidity air duct in the first embodiment of the present invention. As shown in this figure, the plurality of rectifying plates 25 protrude vertically from the side surface portion 20C toward the center in the width direction of the high-humidity air duct 20, and follow the flow direction of the conveying air Q and the high-humidity air R. Elongate. Also with such a rectifying plate 25, the flow of the conveying air Q can be made uniform above the high humidity air inlet 21 and the homogenization of the high humidity air R can be promoted.

  In addition, the width dimension of the conveying wind inlet 22 is set to be equal to or more than half the width dimension of the high humidity air duct 20 at the opening position of the conveying wind inlet 22, preferably equal to the width dimension of the high humidity air duct 20. . Thereby, the conveyance wind Q can be made to flow in the wide range in the high-humidity air duct 20, and the contact area of the conveyance wind Q and the high-humidity air P can be enlarged. Therefore, the high-humidity air P and the conveying air Q can be mixed uniformly, and the vapor concentration of the high-humidity air R can be equalized.

  Further, in the present embodiment, since the high humidity air P is generated by the heater 7, the high humidity air R having natural warmth can be generated. Thereby, since discomfort, such as a cold feeling, is not given with respect to a user, comfort can be improved. Moreover, the high humidity air P and the conveyance wind Q can be easily mixed using the ascending force of the warm high humidity air P.

Embodiment 2. FIG.
Next, a second embodiment of the present invention will be described with reference to FIG. The feature of this embodiment is that at least a part of the corners on the upper side of the high-humidity air duct is formed in a concave curved shape in the configuration almost the same as that of the first embodiment. FIG. 9 is a longitudinal sectional view of the humidifier according to Embodiment 2 of the present invention as viewed from the same position as in FIG. In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  The humidifier according to the present embodiment includes a casing 1, a water supply tank 3, a heating water storage unit 6, a heater 7, a blower fan 10, a high-humidity air duct 50, a guide air duct 30, and the like in substantially the same manner as in the first embodiment. I have. The high-humidity air duct 50 includes an upper surface portion 50A, a lower surface portion 50B, and left and right side surface portions 50C and 50C. Further, the high-humidity air inlet 21, the conveying wind inlet 22 and the high-humidity air outlet 23 are opened in the high-humidity air duct 50, and these openings have the positional relationship as described in the first embodiment. ing.

  On the other hand, at least some of the corners located between the upper surface portion 50A and the side surface portions 50C of the high-humidity air duct 50 are chamfered to connect the upper surface portion 50A and the side surface portion 50C in a concave curved shape. A part 51 is formed. According to the present embodiment configured as described above, the condensed water adhering to the upper surface portion 50A of the high-humidity air duct 50 can smoothly flow down from the chamfered portion 51 to the side surface portion 50C. Therefore, in addition to the same effects as those of the first embodiment, it is possible to suppress the accumulation of condensed water on the upper surface portion 50A and to efficiently collect the condensed water at the high-humidity air inlet 21.

Embodiment 3 FIG.
Next, Embodiment 3 of the present invention will be described with reference to FIGS. The feature of the present embodiment is that the high-humidity air duct is formed in a substantially cylindrical shape or a substantially conical shape in the same configuration as that of the first embodiment. FIG. 10 is a perspective view showing a humidifier according to Embodiment 3 of the present invention. 11 is a longitudinal sectional view of the humidifier shown in FIG. 10, and FIG. 12 is a longitudinal sectional view of the humidifier as seen from the direction of arrows AA in FIG. In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIGS. 10 and 11, the humidifier of the present embodiment is substantially the same as the first embodiment. Casing 1, water supply tank 3, heating water storage unit 6, heater 7, blower fan 10, high humidity air A duct 60, a guide air duct 30 and the like are provided. However, the high-humidity air duct 60 is formed of a cylindrical body having a substantially cylindrical shape or a substantially conical shape, for example. The axis of the high-humidity air duct 60 extends in the blowing direction of the high-humidity air R. The high-humidity air duct 60 may be formed in a cylindrical shape having a certain width dimension (diameter dimension) in the axial direction, or may be formed in a substantially conical shape as shown in FIG. . Further, in the following description, one side in the axial direction of the high-humidity air duct 60 is referred to as an upstream side, and the other side in the axial direction is referred to as a downstream side.

  A high-humidity air inlet 61 is provided at an intermediate position in the axial direction of the high-humidity air duct 60. The high-humidity air inlet 61 opens at the lowermost part of the peripheral surface portion of the high-humidity air duct 60 and is connected to the upper end of the high-humidity air passage 8. In addition, a conveying wind inlet 62 is open on one side in the axial direction of the high-humidity air duct 60. The conveyance air inlet 62 is connected to an upper end portion of a conveyance air inflow passage 66 described later. Further, the transport wind inlet 62 and the transport wind inflow passage 66 are configured to allow the transport wind Q to flow in the tangential direction of the peripheral surface portion of the high-humidity air duct 60 (see FIG. 12).

  As shown in FIGS. 10 and 11, a circular high-humidity air outlet 63 is provided on the other side in the axial direction of the high-humidity air duct 60. The high-humidity air outlet 63 opens on a plane perpendicular to the axis of the high-humidity air duct 60 at the front surface portion of the casing 1 and is covered with a mesh cover 64. In addition, two inclined surface portions 60A and 60B are formed on the lower side of the high-humidity air duct 60 as in the first embodiment. One inclined surface portion 60 </ b> A is inclined obliquely downward from the conveying wind inlet 62 toward the high-humidity air inlet 61. The other inclined surface portion 60B is inclined obliquely downward from the high-humidity air outlet 63 toward the high-humidity air inlet 61.

  On the other hand, as shown in FIG. 11, a connection duct 65 is connected to the upstream portion of the high-humidity air duct 60 and the guide air duct 30. As in the first embodiment, the connection duct 65 is formed by integrating the carrier wind inflow passage 66 and the guide wind inflow passage 67. One end side (lower end portion) of the conveyance air inflow passage 66 is connected to the blower outlet of the blower fan 10 disposed below the high-humidity air duct 60. The other end side (upper end portion) of the conveyance air inflow passage 66 is connected to the conveyance air inlet 62. And in this Embodiment, the conveyance wind inflow channel 66 inclines diagonally with respect to the orthogonal | vertical direction so that the upper end part may become closer to the high-humidity air duct 60 rather than a lower end part.

  In the present embodiment configured as described above, it is possible to obtain substantially the same operational effects as in the first embodiment. Further, in the present embodiment, the transport air Q that has flowed into the upstream side of the high-humidity air duct 60 from the transport air inflow passage 66 turns around the axis of the high-humidity air duct 60 as shown in FIG. Then, it circulates in the axial direction toward the high-humidity air outlet 63. And this conveyance wind Q entrains and mixes with the high humidity air P, turns into the high humidity air R, and blows it out from the high humidity air blower outlet 63 outside.

  Thereby, the high-humidity air P and the conveyance wind Q can be mixed efficiently, and the high-humidity air R with a uniform vapor density can be generated stably. Further, at least a portion of the high-humidity air duct 60 on the downstream side of the high-humidity air inlet 61 is formed in a substantially conical shape gradually narrowing from the upstream side toward the downstream side. Thereby, a turning radius can be made small in the downstream position where the turning force of the high-humidity air R is weakened, and the turning force can be secured. Moreover, the blowing air speed at the high-humidity air outlet 63 can be increased by narrowing the outer diameter of the high-humidity air duct 60 on the downstream side. Therefore, the directivity of the high-humidity air R can be increased, and the thrust of the high-humidity air R conveyed toward the humidification target can be improved.

  Further, according to the present embodiment, as shown in FIG. 12, the cross-sectional shape of the high-humidity air duct 60 is circular, and therefore the same effect as that obtained when the chamfered portion 51 of the second embodiment is provided. Can be obtained. That is, the dew condensation water adhering to the upper side of the high-humidity air duct 60 can smoothly flow down to the lower side. Further, the conveying wind inflow passage 66 is inclined obliquely so that the upper end portion is closer to the high-humidity air duct 60 than the lower end portion. Thereby, the thrust of the axial direction which goes to a downstream can be added with respect to the conveyance wind Q which flows in into the high-humidity air duct 60. FIG. Accordingly, the conveying wind Q can be circulated vigorously toward the downstream side while swirling. That is, the airflow of the high-humidity air R blown from the high-humidity air outlet 63 can be made stronger.

Embodiment 4 FIG.
Next, a fourth embodiment of the present invention will be described with reference to FIGS. The feature of this embodiment is that the high-humidity air duct is formed in a horizontal cylindrical shape. FIG. 13 is a perspective view showing a humidifier according to Embodiment 4 of the present invention. 14 is a longitudinal sectional view of the humidifier shown in FIG. 13, and FIG. 15 is a longitudinal sectional view of the humidifier as seen from the direction of arrows AA in FIG. In FIG. 14, an irregular cross-sectional view is adopted so that a high-humidity air inlet 71, a conveyance wind inlet 72, and a high-humidity air outlet 73 described later are displayed as cross sections. Moreover, in this Embodiment, the same code | symbol shall be attached | subjected to the component same as Embodiment 1, and the description shall be abbreviate | omitted.

  As shown in FIG. 13 and FIG. 14, the humidifier of the present embodiment is similar to the first embodiment in the casing 1, the water supply tank 3, the heating water storage unit 6, the heater 7, the blower fan 10, and the high humidity air. A duct 70, a guide air duct 30 and the like are provided. However, the high-humidity air duct 70 is formed in, for example, a horizontal cylindrical shape extending in the left-right direction of the humidifier. The axis of the high-humidity air duct 70 extends in the horizontal direction (the left-right direction of the humidifier) along a plane perpendicular to the high-humidity air blowing direction. In the following description, the left side of the high-humidity air duct 70 is expressed as one axial side and the upstream side, and the right side is expressed as the other axial side and the downstream side in FIG. 15 when the humidifier is viewed from the front side.

  As shown in FIGS. 14 and 15, a high-humidity air inlet 71 is formed in a portion of the peripheral surface portion of the high-humidity air duct 70 on the upstream side of the intermediate portion in the left-right direction. The high-humidity air inlet 71 opens at the lowermost part of the high-humidity air duct 70 and is connected to the upper end of the high-humidity air passage 8. Further, a conveying wind inlet 72 is opened in a portion of the peripheral surface portion of the high humidity air duct 70 on the upstream side of the high humidity air inlet 71. The conveyance wind inlet 72 is connected to an upper end portion of a conveyance wind inflow passage 76 described later. The conveying wind inlet 72 and the conveying wind inflow passage 76 are configured to allow the conveying wind Q to flow in the tangential direction of the peripheral surface portion of the high-humidity air duct 70 as shown in FIG.

  On the other hand, as shown in FIGS. 13 and 14, a high-humidity air outlet 73 is opened in a portion downstream of the opening position of the high-humidity air inlet 71 in the peripheral surface portion of the high-humidity air duct 70. Yes. The high-humidity air outlet 73 is formed of, for example, a rectangular tubular body that is flat in the horizontal direction, and protrudes from the peripheral surface portion of the high-humidity air duct 70 in the tangential direction. The protruding end portion of the high-humidity air duct 70 opens to the front surface portion of the casing 1 and is covered with a mesh cover 74. The protruding direction of the high-humidity air duct 70 is set so as to match the turning direction of the conveying air Q that turns in the high-humidity air duct 70. Thereby, the high-humidity air outlet 73 is configured to blow out the high-humidity air R swirling in the high-humidity air duct 70 in the tangential direction of the peripheral surface portion of the high-humidity air duct 70.

  Further, as shown in FIG. 14, a connection duct 75 is connected to the upstream portion of the high-humidity air duct 70 and the guide air duct 30. As in the first embodiment, the connection duct 75 is formed by integrating the carrier wind inflow passage 76 and the guide wind inflow passage 77. The conveying wind inflow passage 76 connects the lower blower fan 10 on the lower end side and the guide wind duct 30 on the upper end side. As in the third embodiment, the upper end portion is higher in humidity than the lower end portion. It is inclined obliquely with respect to the vertical direction so as to be close to the duct 70.

  In the present embodiment configured as described above, it is possible to obtain substantially the same operational effects as in the first embodiment. Further, in the present embodiment, the transport air Q flowing into the left side of the high-humidity air duct 70 from the transport air inflow passage 76 turns around the axis of the high-humidity air duct 70 as shown in FIGS. However, it circulates toward the high-humidity air outlet 73 on the right side. And this conveyance wind Q becomes high-humidity air R, and it blows outside from the high-humidity air outlet 73, involving high-humidity air P and being mixed therewith.

  Therefore, as in the third embodiment, the high-humidity air P and the conveying air Q can be efficiently mixed, and the high-humidity air R having a uniform vapor density can be stably generated. Further, since the high-humidity air R is blown out from the high-humidity air outlet 73 in the tangential direction of the high-humidity air duct 70, the thrust of the high-humidity air R can be improved using the turning force of the high-humidity air R.

  In addition, in this invention, in the said Embodiment 1-4, it is good also as a structure which can rotate the wind direction guide 32 to an up-down direction in the position of the guide wind blower outlet 31. FIG. Thereby, the blowing angle of the guide wind S with respect to the horizontal direction can be adjusted, and the conveyance direction of the high-humidity air R can be appropriately changed according to the position of the heating target. Moreover, in this invention, it is good also as a structure which adjusts the wind direction of the guide wind S, for example by rotating the whole guide wind duct 30 to an up-down direction. In addition, the present invention is not limited to the flat air guide 32, and may be configured to surround the guide air outlet 31 from above and from the side with a substantially U-shaped air guide, for example.

  In the present invention, for example, when the upper surface portion of the high-humidity air duct has an R shape (roundness), the lower surface portion of the guide air outlet is also provided with the same R shape so as to be along the upper surface portion of the high humidity air duct. It is good also as a structure. According to this configuration, since the guide air blown from the guide air outlet is smoothly joined to the high humidity air so as to follow the high humidity air, the direction of the high humidity air can be controlled efficiently.

  In the first to fourth embodiments, the configuration in which the steam is generated by the heater 7 is exemplified. However, the present invention is not limited to this, and examples of the high-humidity air generation unit include a heater and ultrasonic steam generation. It is good also as a structure which combines a means. Moreover, although Embodiment 1 to 4 illustrated the humidifier, the present invention can also be applied to various fluid transport devices used for purposes other than humidification.

DESCRIPTION OF SYMBOLS 1 Casing, 2 Lids, 3 Water supply tank (fluid storage part), 4 Water supply part, 5 Water supply path, 6 Heat storage part (high humidity air production | generation part), 7 Heater (high humidity air production | generation part, heating part), 8 High-humidity air passage, 10 Blower fan (blower), 11, 65, 75 Connection duct, 12, 66, 76 Conveyance air inflow passage, 13, 67, 77 Guide air inflow passage, 20, 50, 60, 70 High humidity Wind duct, 20A, 30A, 50A Upper surface part, 20B, 30B, 50B Lower surface part, 20C, 30C, 50C Side surface part, 20D Back wall part, 20E, 20F, 60A, 60B Inclined surface part, 20G Parallel side part, 21, 61 , 71 High-humidity air inlet, 22, 62, 72 Conveyance air inlet, 23, 63, 73 High-humidity air outlet, 24, 64, 74 Mesh cover, 25 Current plate, 30 Guide air duct, 30D Narrow side face, 30E widening part, 31 guide air outlet, 32 wind direction guide, 40 control part, 41 operation part, 51 chamfering part, P high humidity air, Q conveying air, R high humidity air, S guide air

Claims (15)

A fluid reservoir for storing fluid;
A high-humidity air generating unit that generates high-humidity air from the fluid stored in the fluid storage unit;
A blower unit that sends out air to be a conveying wind and a guiding wind,
A duct into which the conveying air and the high-humidity air flow, and a high-humidity air duct that blows out the high-humidity air mixed with the conveying air and the high-humidity air to the outside of the fluid conveying device;
A high-humidity air inlet that opens to the lower surface of the high-humidity air duct and allows the high-humidity air to flow into the high-humidity air duct;
A high-humidity air duct is disposed on the upper side of the high-humidity air duct so that at least a part of the high-humidity air duct overlaps.
The high-humidity air duct is a fluid conveyance device having a space for mixing the conveyance air and the high-humidity air downstream of the high-humidity air inlet.   The high-humidity air blowing direction is set to be horizontal or obliquely downward, and the guide-air blowing direction is inclined obliquely downward at a larger inclination angle than the high-humidity air blowing direction. The fluid conveyance apparatus as described in.   At least one of a transport wind inlet for allowing the transport wind to flow into the high-humidity air duct and a high-humidity air outlet from which the high-humidity air flowing through the high-humidity air duct blows outside, 3. The fluid conveyance device according to claim 1, wherein the fluid conveyance device is configured to open to the high-humidity air duct at a position higher than a high-humidity air inlet port that flows into the high-humidity air duct.   The fluid conveyance device according to claim 3, wherein a lower surface portion of the high-humidity air duct is configured to be inclined obliquely downward from the at least one port toward the high-humidity air inlet. A high-humidity air outlet through which the high-humidity air flowing through the high-humidity air duct blows out;
A guide air outlet that opens above the high-humidity air outlet and from which the guide air that flows through the guide air duct blows out.
5. The guide air blowing range in the horizontal direction is set to be wider than the high humid air blowing range in a state where it overlaps the high humid air blowing range from above. The fluid conveyance apparatus of any one of these. The guide air duct includes two side wall portions facing each other in the horizontal direction across the flow of the guide air,
6. The fluid conveyance device according to claim 1, wherein an interval between the side wall portions is configured to be larger at a position downstream of the upstream side in the flow direction of the guide air.   The fluid conveyance device according to claim 1, wherein the high-humidity air generation unit includes a heating unit that generates steam by heating the fluid.   The fluid conveyance device according to any one of claims 1 to 7, wherein at least a part of a corner located between the upper surface portion and the side surface portion of the high-humidity air duct is formed in a concave curve shape.   The conveyance air inlet for allowing the conveyance air to flow into the high-humidity air duct is formed such that the horizontal width dimension is at least half the width dimension of the high-humidity air duct at the opening position of the conveyance air inlet. The fluid conveyance device according to any one of claims 1 to 8. The high-humidity air duct includes two side wall portions facing each other in the horizontal direction across the flow of the high-humidity air,
Each said side part is provided with the parallel side part arrange | positioned in parallel mutually mutually on the upper side of the high-humidity air inlet which flows in the said high-humidity air into the said high-humidity air duct. The fluid conveyance device according to item.   11. The air flow duct according to claim 1, wherein the high humidity air duct is provided with a rectifying plate that equalizes the airflow above the high humidity air inlet through which the high humidity air flows into the high humidity air duct. The fluid conveyance device according to item. The high-humidity air duct is formed by a cylindrical or conical duct having an axis extending in the blowing direction of the high-humidity air,
A conveyance air inlet for allowing the conveyance air to flow into the high-humidity air duct is opened on one axial side of the high-humidity air duct, and the conveyance air is caused to flow in a tangential direction of the peripheral surface portion of the high-humidity air duct. age,
The high-humidity air outlet that blows out the high-humidity air from the high-humidity air duct is configured to open on a surface perpendicular to the axis on the other axial side of the high-humidity air duct. The fluid conveying apparatus of any one of them. The high-humidity air duct is formed by a cylindrical duct having an axis extending along a plane perpendicular to the high-humidity air blowing direction,
A conveyance air inlet for allowing the conveyance air to flow into the high-humidity air duct is opened on one axial side of the high-humidity air duct, and the conveyance air is caused to flow in a tangential direction of the peripheral surface portion of the high-humidity air duct. age,
The high-humidity air outlet that blows out the high-humidity air from the high-humidity air duct opens to the other side in the axial direction of the high-humidity air duct, and the high-humidity air is tangential to the peripheral surface portion of the high-humidity air duct. The fluid transfer device according to claim 1, wherein the fluid transfer device is configured to be blown out. One end side is connected to the air blowing section disposed below the high humidity air duct, and the other end side is connected to a conveying air inlet opening in the high humidity air duct, and the high humidity air is supplied from the air blowing section. A transport air inflow passage for allowing the transport air to flow into the duct;
The conveyance air inflow passage is configured to be inclined obliquely with respect to a vertical direction so that the other end side is closer to the high-humidity air duct than the one end side. Item 1. The fluid conveyance device according to item 1.   The fluid conveyance device according to any one of claims 1 to 14, wherein the high-humidity air duct is configured to gradually narrow from an upstream side to a downstream side in a flow direction of the high-humidity air.

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