JP2006275382A - Humidifying method and humidifying device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain balanced, accurate and efficient humidification in the same room by using one low-priced fluid nozzle of simple structure restricted in the occurrence of injection noise. <P>SOLUTION: The humidifier is provided with a pressurized water injection nozzle 1 for injecting water having hydraulic force of about 2 MPa and Raynolds number of about 13,000 and a three-dimensional collision article Q having a curved surface for crushing injected water into particles at about 100 μm when the injected water collides it, and blowers 7 and 8 for blowing the crushed water particles to pass through any run-up section to atomize the water particle into fine spray at 5 to 10 μm. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention comprehensively controls humidity adjustment, deodorization, dust collection, and air-conditioning by spraying fountains of fine water particles using a single fluid nozzle in a room in various facilities such as hospitals, health facilities, and smoking areas. The present invention relates to a humidification method and apparatus in a humidifying / dehumidifying / cooling / heating system that can be used.

  A conventional humidifier uses a two-fluid nozzle having a two-fluid inlet for air and water with respect to the nozzle. For example, an air pressure of about 0.3 MPa and air of about 15 to 20 liters per minute per nozzle. According to the flow rate, water was atomized into fine particles and released into the room.

  In this case, the humidifier was discharged with a water particle size of about 100 μm to 300 μm by adjusting only the spray amount of water.

  However, since the conventional humidifier uses a two-fluid nozzle having two fluid inlets for air and water for the nozzle, the structure of the nozzle itself is complicated, the number of parts is high, and the cost is increased. The eruption noise was great. Further, it is necessary to connect a large air compressor for atomizing water to the nozzle, which increases the cost and installation space.

  In addition, the operation sound of the large air compressor itself is quite large at 80 to 90 dBA and the vibration is large, so that it is not suitable for use in hospitals and other facilities that require quietness.

  In order to solve such various problems, it is possible to propose a method using a single fluid nozzle that introduces only pressurized water instead of the two fluid nozzle, but this single fluid nozzle is used. In this case, there has been a problem that a large pressurized power source of about 150 MPa is required at the actual value in the conventional market.

  Furthermore, since the conventional humidifier is discharged with a water particle size of about 100 μm to 300 μm from the nozzle, the large water particle size is scattered around the outlet of the humidifier. However, it was impossible to obtain a highly accurate and efficient humidification that was balanced in the same room.

  Therefore, the present invention was devised in view of the existing circumstances as described above, and does not require a large pressure power source of about 150 MPa as in the prior art, and is low in vibration, low in cost, and space-saving. Can be used, and a low-cost one-fluid nozzle that is simple in structure and free of jet noise can be used to achieve highly efficient and efficient humidification that is balanced in the same room. It is an object of the present invention to provide a humidification method and apparatus capable of performing the same.

  In order to achieve the above object, in the humidifying method according to the present invention, water having a water pressure of about 2 MPa and a Reynolds number of about 13,000 collide with a solid collision object having a curved surface, or collide with each other. As a result, the first step of forming pulverized particles of water of about 100 μm and the pulverized particles of water are blown and passed through an arbitrary running section, so that the atomized size is reduced to about 5 to 10 μm. And a second step of ejecting.

  Further, in the humidifier according to the present invention, the water pressure of about 100 μm is pulverized by colliding the jet water with a pressurized water jet nozzle for jetting water having a water pressure of about 2 MPa and a Reynolds number of about 13,000. A solid collision object having a curved surface that forms particles, and a blower that sprays the crushed particles of water on an air blow and passes through an arbitrary run-up section to make the spray finer about 5 to 10 μm and eject it. It is a thing.

  And a plurality of nozzles for ejecting pressurized water, the nozzles being arranged obliquely so as to form crushed particles of water of about 100 μm by colliding each other with water pressure of about 2 MPa and Reynolds number of about 13,000. It can be provided with a blower that sprays the finely pulverized water particles of about 5 to 10 μm by placing the pulverized water particles in an air blow and passing through an arbitrary running section.

  Moreover, the said collision object shall exhibit the shape of either a spherical body, an ellipsoid, or a cylindrical body.

  In the humidification method and apparatus according to the present invention configured as described above, when water having a water pressure of about 2 MPa and a Reynolds number of about 13000 collides with the collision object, the water is moved from the left and right sides of the collision object. A Karman vortex street is formed by the spray water flow toward the flow. The stagnation point where the velocity of the spray water flow becomes zero is generated by the wake separation at the separation point of the spray water flow on the surface of the collision object in the turbulent region, and the phenomenon of the negative pressure at this stagnation point is generated. More spray pulverization can be generated.

  Further, according to the present invention, it is possible to use a small booster that does not require a large pressure power source of about 150 MPa as in the prior art, that is low in vibration and low in cost, and that can save space. However, it is possible to use a low-cost one-fluid nozzle that is simple and free from jet noise, and can achieve highly accurate and efficient humidification that is balanced in the same room.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  Reference numeral 1 shown in the figure is a pressurized water ejection nozzle constituting one fluid nozzle in the humidifier, and the pressurized water ejection nozzle 1 is located on the upper side of the lower large-diameter portion 2A as shown in FIG. The small-diameter portion 2B of the bottomed hollow cylindrical housing 2 is connected to the upper side of the small-diameter portion 2B, and the water storage tank P is disposed below the cylindrical housing 2 and supplied. The conduit 6A is connected via a small pressure booster 3, a relief valve 4 and a pressure gauge 5.

  At the upper end side of the small-diameter portion 2B of the cylindrical housing 2, a pusher blower 7 having a fan structure for forcibly pushing the water sprayed and dropped from the pressurized water jet nozzle 1 downward is attached. A collision object Q having a three-dimensional shape with a curved surface, such as a rigid sphere or ellipsoid, is fixed at an inner center of the large-diameter portion 2A on the side, with an arbitrary running distance away from the position of the pressurized water ejection nozzle 1. It is arranged in the state.

  In addition, an outlet 2C for discharging sprayed and refined water is formed on the peripheral side surface of the large-diameter portion 2A on the lower side of the cylindrical casing 2, and the outlet 2C removes the sprayed and refined water from the outside. For example, it is connected to a suction blower 8 having a fan structure for discharging at a wind speed of about 2.6 m / s.

  In addition, on the lower surface side of the large-diameter portion 2A below the cylindrical housing 2, the water is connected to the water storage tank P through the recovery conduit 6B, and water that has not been crushed in the cylindrical housing 2 is sprayed. It can be recovered in P.

  In the present embodiment, the above-described air valves of both the blowers 7 and 8 are controlled, the valve opening / closing control by the electromagnetic valves of the plurality of pressurized water ejection nozzles 1, and the automatic control needle valve that is driven and controlled by the driving motor. The pulverized particle flow density of water can be easily adjusted by controlling the amount of water jetted by controlling the opening and closing of the valve. In addition, if a humidity sensor is arrange | positioned at the nozzle 1 side for pressurized water ejection, humidification adjustment will also be attained.

  In this way, water having a water pressure of about 2 MPa and a Reynolds number of about 13000 is ejected and dropped from the pressurized water jet nozzle 1 and is crushed on the surface of the collision object Q by the blower for pushing 7 to pulverize about 100 μm After the particles are formed, the pulverized particles of the water are put on the air blown by the pushing blower 7 and passed through an arbitrary running section on the circumference inside the large-diameter portion 2A on the lower side of the cylindrical housing 2. In this way, after being atomized to about 5 to 10 μm, the air is blown out by the suction fan 8.

  Next, an example of use and operation of the best mode configured as described above will be described. As shown in FIG. 1, when the relief valve 4 is opened, the water in the water storage tank P is supplied to the small pressure booster 3. The water pressure is about 2 MPa and the Reynolds number is about 13,000, and the water is ejected from the pressurized water ejection nozzle 1. At this time, the pushing blower 7 forcibly pushes down the water sprayed and dropped from the pressurized water jet nozzle 1 toward the lower side and causes it to violently collide with the surface of the collision object Q on the lower side. Thereby, pulverized particles of water of about 100 μm are formed.

  The pulverized particles of water are put on the air blown by the blower 7 for pushing, and are allowed to pass through an arbitrary running section along the circumference of the large-diameter portion 2A on the lower side of the cylindrical housing 2 to be about 5 to 10 μm. It atomizes in the form of spray and is guided to the outlet 2 </ b> C, and is blown out by the suction fan 8.

  Next, the result of the demonstration experiment by using the humidifier of 1 fluid nozzle in this Embodiment was as follows. That is, as shown in FIG. 4, regarding the relationship between the spray amount (cc / min) and the spray effective rate (%) with respect to the pressure (MPa), for example, in the case of a sphere having a diameter of 22 mm and a cylinder having a diameter of 25 mm, the pressure is The spray amount (cc / min) / spray effective rate (%) suddenly increases from 1 MPa to 2 MPa, and the spray amount (cc / min) / spray effective rate (%) reaches the maximum from 2 MPa to 3 MPa. At a pressure of 3 MPa or more, the spray amount (cc / min) / spray effective rate (%) hardly changes or slightly decreases. Thus, at a water pressure of about 2 MPa, it is possible to obtain a balanced and accurate and efficient humidification.

  FIG. 2 shows another embodiment of the pressurized water ejection nozzle 1 and the collision object Q according to the present invention. In this case, the collision object Q is formed into a cylindrical body, and this is laid sideways with respect to the center of the large-diameter portion 2A on the lower side of the cylindrical casing 2, and the cylindrical casing is arranged along the collision object Q. Three pressurized water ejection nozzles 1 are arranged adjacent to each other on the upper side of the two small diameter portions 2B.

  FIG. 3 shows another embodiment of the pressurized water jet nozzle 1 according to the present invention. In this case, without using the collision object Q, the two pressurized water ejection nozzles 1 are arranged obliquely on the upper side in the small diameter portion 2B of the cylindrical housing 2 so that the water discharge directions intersect each other. . Note that three or more pressurized water ejection nozzles 1 may be disposed obliquely so that the water discharge directions intersect each other.

  As a result, the water ejected from each of the two pressurized water ejection nozzles 1 collide with each other to form water pulverized particles of about 100 μm, and the water pulverized particles are put on the air blown by the pushing blower 7. It is made to spray outside by the suction blower 8 after atomizing to about 5 to 10 μm by passing through an arbitrary running section.

  The means for crossing the water particles discharged from the pressurized water jet nozzle 1 of the third embodiment and the means for causing the collision with the collision object Q shown in the first and second embodiments can also coexist.

It is a perspective view which shows the outline of the use condition in the best form for implementing this invention. It is a perspective view which shows the outline of the use condition which shows the other Example in this Embodiment. It is a perspective view which shows the outline of the use condition which shows the other Example in this Embodiment. The graph which demonstrates the result of the demonstration experiment by use of the humidifier of 1 fluid nozzle in this Embodiment, Comprising: The graph which shows the relationship of the spray amount (cc / min) and spray effective rate (%) with respect to pressure (MPa) It is.

Explanation of symbols

P Water storage tank Q Collision object 1 Pressurized water ejection nozzle 2 Cylindrical housing 2A Large diameter portion 2B Small diameter portion 2C Outlet 3 Small pressure booster 4 Relief valve 5 Pressure gauge 6A Supply conduit 6B Recovery conduit 7 Pushing fan 8 Suction fan

Claims (4)

  Water having a water pressure of about 2 MPa and a Reynolds number of about 13,000 are collided with a solid collision object having a curved surface or / and collide with each other to form pulverized water particles of about 100 μm. A humidifying method characterized by comprising a first step and a second step of spraying the pulverized particles of water on an air blow and allowing them to pass through an arbitrary run-up section and atomizing and spraying them to about 5 to 10 μm. .   A pressurized water jet nozzle for jetting water having a water pressure of about 2 MPa and a Reynolds number of about 13000, and a solid collision object having a curved surface that forms ground particles of water of about 100 μm by colliding the jet water. And a blower for spraying the finely pulverized particles of water on a blown air and allowing them to pass through an arbitrary running section to be sprayed into a fine atomized form of about 5 to 10 μm.   A plurality of nozzles for ejecting pressurized water, the nozzles being arranged obliquely to form crushed particles of water of about 100 μm by colliding each other with water pressure of about 2 MPa and Reynolds number of about 13,000; A humidifying device comprising: a blower that sprays pulverized particles on a blown air and passes through an arbitrary running section so as to be atomized to about 5 to 10 μm and ejected. The humidifying device according to claim 2, wherein the collision object has a shape of a sphere, an ellipsoid, or a cylinder.

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