JP2001317770A - Indirect steam humidifier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an indirect steam humidifier which is compact and enabled of changing humidifying quantity (the quantity of generating steam) and is maintained easily. SOLUTION: This indirect steam humidifier is provided with the humidifying can 10 of a horizontally arranged cylindrical body, of which upper surface is provided with a plurality of humidifying steam outlet holes 11 and storing inside which the humidifying water of predetermined level and a heating tube 15 dipped into the inside of the humidifying can 10 inserting in the direction of axis and heating the humidifying water 12 by a heating medium supplied into the inside of the heating tube 15, and the humidifying steam generated by the humidifying can 10 is supplied through the humidifying steam outlet holes 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indirect steam humidifier, and more particularly to an air conditioner for supplying clean air in a hospital or the like.

[0002]

2. Description of the Related Art Conventionally, as a humidifier of this type, for example, there is one described in Japanese Patent No. 2599653. In this method, a heating coil is immersed in a heating tank placed outside the air conditioner, and the water in the heating tank is heated by a heating medium passing through the heating coil to generate steam. It was taken out of the heating tank through a pipe and led to an air conditioner through a steam blow-out pipe.

[0003]

In the above arrangement, a heating tank for generating steam and a steam ejection pipe for ejecting steam to the air conditioner to humidify the air are separately provided. This is a configuration that is installed outside the harmony device.Because the heating tank placed outside requires a heat retaining structure, the structure becomes complicated and the size becomes large, so the installation space is separate from the air conditioning device. Required. In addition, it is necessary to set the humidification pipe and the heating tank according to the capacity of the air conditioner. However, the heating tank has a complicated structure, and it is difficult to deal with it by modification or design change. It is necessary to separately prepare heating tanks of various sizes according to the humidification amount). In addition, maintenance such as cleaning of the heating tank is troublesome.

An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide an indirect steam humidifier which is compact and can easily change a humidification amount (steam generation amount) and perform maintenance.

[0005]

Means for Solving the Problems To solve the above-mentioned problems, an indirect steam humidifier according to the present invention according to claim 1 comprises:
A humidifying canister that has a plurality of humidifying steam outlets on the upper surface forming a tubular body arranged in the horizontal direction and stores humidified water at a predetermined level inside, and is inserted axially into the humidifying can. A heating pipe for immersing and heating the humidified water with a heating medium supplied to the inside is provided.

With the above structure, the humidifying water in the humidifying can is heated by the heating medium flowing through the heating tube, and the generated humidifying steam is directly supplied from the humidifying steam outlet to the humidifying target area outside the humidifying can. .

Accordingly, the function of the humidifying canister to generate humidifying steam (corresponding to a conventional heating tank) and the function of supplying humidifying steam to a humidification target area (corresponding to a conventional steam ejection pipe).
Since the structure becomes compact by having the unit integrally, it is possible to arrange most of the components in the air conditioner, and by installing it in the air conditioner, the conventional heat insulation means is not required. This eliminates the need for an extra installation space for disposing members outside the air conditioner. Further, since the heating tube has a simple configuration in which the heating tube is inserted in the axial direction into the humidifying can that forms a cylindrical body, an apparatus for supplying an arbitrary amount of humidification simply by changing the length of the humidifying can and the heating tube. Can be designed and manufactured freely and easily, and the manufacturing cost is reduced.

[0008] According to a second aspect of the present invention, there is provided an indirect steam humidifier having a cap-shaped body covering the entire water surface inside the humidifying can and having a plurality of fine holes penetrating the front and back of the cap-shaped body. This is a configuration provided with a scattering prevention body.

With the above structure, the humidifying steam generated in the humidifying can flows out of the humidifying can from the humidifying steam outlet through each minute hole of the water droplet scattering preventing member. At this time, the water droplet scattering prevention member receives the water droplets scattered from the water surface of the humidifying can due to the boiling of the humidifying water, and prevents the water droplets from scattering to the outside through the humidifying steam outlet.

According to a third aspect of the present invention, there is provided an indirect steam humidifier having at least one humidification steam outflow opening which is formed in a cylindrical body arranged in a horizontal direction, and is opened in an upper surface along an axial direction. , A humidifying can for storing humidifying water at a predetermined water level inside, a water droplet scattering prevention member having a plurality of micro holes penetrating through the front and back, arranged over the humidifying steam outflow opening, and an axial center inside the humidifying can. A heating pipe for inserting, immersing, and heating the humidified water with a heating medium supplied to the inside is provided.

With the above structure, the humidifying water in the humidifying can is heated by the heating medium flowing through the heating tube, and the generated humidifying steam is supplied directly from the humidifying steam outlet to the humidifying target area outside the humidifying can. . At this time, the humidifying steam generated in the humidifying can flows out of the humidifying can from the humidifying steam outflow opening through each minute hole of the humidifying canister. To receive water droplets scattered from the humidifier and prevent the water droplets from scattered to the outside through the humidification vapor outflow opening.

According to a fourth aspect of the present invention, there is provided an indirect steam humidifier having at least one humidifying steam outflow opening which is formed in a cylindrical body arranged in a horizontal direction and which is opened along an axial direction on an upper surface thereof. A humidifying can that stores therein humidifying water at a predetermined level, a cover disposed to cover the humidifying steam outflow opening, and at least one humidifying steam distribution pipe erected on the cover;
A water droplet scattering prevention member having a plurality of micro holes penetrating through the front and back, which is disposed so as to cover at least one steam distribution port formed along the axial direction and formed in the humidification steam distribution pipe; And a heating tube for heating the humidified water with a heating medium supplied inside.

With the above arrangement, the humidifying water in the humidifying vessel is heated by the heating medium flowing through the heating pipe, and the generated humidifying steam is supplied from the humidifying steam outlet opening to the humidifying steam distribution pipe. The water is supplied from the steam distribution port of the pipe to the humidification target area outside the humidification can. At this time, the surrounding air flow can be humidified by extending the humidification steam distribution pipe upward from the humidification can arranged in the horizontal direction. In addition, the cover catches water droplets scattered from the surface of the humidifier due to the boiling of the humidifier, and the humidifying steam generated in the humidifier flows out of the vapor distribution port to the outside of the humidifier through the minute holes of the water droplet scattering prevention body. Therefore, the water droplet scattering prevention member receives the water droplets of the humidifying water, and prevents the water droplets from scattering to the outside through the vapor distribution port.

According to a fifth aspect of the present invention, there is provided an indirect steam humidifier having an opening formed at one end in the axial direction of the humidifying can and a humidifying can flange provided around the opening. A heating pipe flange to be joined to the humidifying can flange is provided at one end of the inserted heating pipe, and the humidifying can and the heating pipe are flange-connected.

With the above configuration, the humidifying can and the heating tube can be easily separated from each other at the respective flange surfaces, so that maintenance such as cleaning of the inner surface of the humidifying can and the outer surface of the heating tube becomes easy.

According to a sixth aspect of the present invention, there is provided an indirect steam humidifier according to the present invention, comprising: a water supply tank for storing therein makeup water to be supplied to a humidification can; a makeup water pipe communicating the water supply tank with a liquid phase portion of the humidification can. , A pressure equalizing pipe for communicating the water supply tank with the gas phase of the humidifying can, and an automatic water faucet for controlling the water level of the water supply tank to a set water level.

With the above configuration, the water tank communicates with the humidifier via the supply water pipe and the equalizing pipe, so that the water level in the water tank and the water level in the humidifier are always the same. For this reason, the water level in the humidifying can can be constantly maintained at the set water level by controlling the water level of the water supply tank with the automatic water tap.

According to a seventh aspect of the present invention, there is provided an indirect steam humidifier according to the present invention, wherein an inner region of the humidifying can is partitioned by a partition wall to form a water supply tank portion for storing makeup water at one end of the humidifying can. A pressure equalizing port for communicating the gas phase of the humidifying can with the gas phase of the water supply tank is provided at the lower part of the partition wall, and a replenishing water port for communicating the liquid phase of the humidifying can and the liquid phase of the water supply tank at the lower part of the partition wall. And an automatic water tap for controlling the water level of the water supply tank to a set water level.

With the above configuration, the water supply tank communicates with the humidifying can through the supply port and the pressure equalizing port, so that the water level in the water supply tank and the water level in the humidifying can always have the same water level.
For this reason, the water level in the humidification can can be constantly maintained at the set water level by controlling the water level in the water supply tank by the automatic water tap. In addition, the water tank and the humidifying can are integrated,
The whole can be made compact.

According to an eighth aspect of the present invention, in the indirect steam humidifier of the present invention, the heating tube is formed of a U-shaped tube. By supplying the heating medium (heating steam) to the U-shaped tube according to the above configuration, the heating medium flows over the entire length of the heating pipe, so that the humidifying steam is uniformly generated in the entire humidifying can.

According to a ninth aspect of the present invention, there is provided an indirect steam humidifier in which a heating medium distribution pipe is inserted and arranged in a double tube inside a heating pipe, and a plurality of orifices are formed in the heating medium distribution pipe. Things.

With the above arrangement, the heating medium (heating steam) is supplied into the heating pipe through each orifice of the heating medium distribution pipe, whereby the heating medium can be evenly distributed over the entire length of the heating pipe. The amount of steam generated for humidification is increased by improving the heating performance.

According to a tenth aspect of the present invention, there is provided an indirect steam humidifier according to the present invention, wherein an orifice formed in a heating medium distribution pipe is formed by a condensate flowing through a condensate discharge passage formed between the heating pipe and the heating medium distribution pipe. This is a configuration formed in the flow forward direction.

According to the above-described structure, the heating medium (heating steam) ejected from the orifice into the heating pipe is condensed by heating the humidifying water, and becomes a condensed liquid and flows through the condensed liquid discharge passage. At this time, the heating medium is ejected from the orifice in the forward direction of the flow of the condensate, thereby promoting the flow of the condensate in the condensate discharge passage. Is less likely to occur.

According to an eleventh aspect of the present invention, there is provided an indirect steam humidifier in which a radiating fin is provided on an outer peripheral surface of a heating tube. With the above configuration, the heat radiation area of the heating tube increases,
The amount of humidifying steam generated increases.

[0026]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, the air conditioner is provided with a return air port 2 and an air supply port 3 on a top surface along a longitudinal direction of a casing 1. A ventilation path is formed toward the opening 3, and a blower 5 driven by a motor 4 is installed immediately below the air supply opening 3.

An air filter 6, a cooling coil 7, and a heating coil 8 are sequentially arranged in the ventilation path along the direction of air flow, and an indirect steam humidifier 9 is arranged downstream of the heating coil 8. I have.

As shown in FIGS. 3 to 10, the indirect steam humidifier 9 has a humidifying can 10 disposed in a horizontal direction and has a tubular body with a closed end. A humidifying water 12 having a predetermined water level is stored inside the humidifying can 10. The humidifying can 10 has an opening 13 on the base end side in the axial direction, and a humidifying can flange 14 is provided around the opening 13.

As shown in FIG. 5, a heating tube 15 is inserted into the humidifying can 10 through the opening 13 in the axial direction and is immersed in the humidifying water 12. The heating tube 15 is closed at the distal end, and has a heating tube flange 16 joined to the humidifying can flange 14 at the base end. The humidifying can flange 14 and the heating pipe flange 16 are fixed by bolts and nuts 17, and the opening 13 of the humidifying can 10 is closed by the heating pipe flange 16.

As shown in FIG. 7, the water supply tank 18 stores therein makeup water to be supplied to the humidifying can 10, communicates with the liquid phase portion 10 a of the humidifying can 10 via a makeup water pipe 19, and
0 communicates with the gas phase portion 10b of the humidifying can 10. A water supply tank 1 is provided at the end of a water supply pipe 21 for supplying water to the water supply tank 18.
An automatic water tap 22 is provided for controlling the water level inside 8 to a set water level. A drain pipe 23 communicates with the makeup water pipe 19, and a drain valve 24 is connected to the drain pipe 23.
Is provided.

As shown in FIG. 5, the heating pipe 15 has a double-walled heating steam distribution pipe 25 inserted therein.
A condensed liquid discharge passage 26 is formed between the pipe 5 and the heated steam distribution pipe 25. The heated steam distribution pipe 25 has a plurality of orifices 27 on a helical trajectory around the axis, and as shown in FIGS.
The opening of the condensate flowing in the direction of flow is directed toward the forward direction.

The heating pipe flange 16 is provided with a steam inlet adapter 28, and the steam inlet adapter 28 is
An internal flow passage 28a communicating with the internal flow passage 28a is provided, and a steam condensed water discharge pipe 29 is provided in communication with the internal flow passage 28a. The base end of the heated steam distribution pipe 25 penetrates through the steam inlet adapter 28 in the axial direction, and communicates with a heated steam inlet 28 b formed at the base end of the steam inlet adapter 28. As shown in FIG. 3, a heating steam supply pipe 30 is connected to the heating steam inlet 28b, and the heating steam supply pipe 30 is provided with an electric valve 31 for controlling the amount of humidification. The degree of opening of the humidification amount control electric valve 31 is controlled by a command from a temperature controller (not shown).

As shown in FIGS. 11 and 13, the steam inlet adapter 28 can be screwed to the heating pipe flange 16. Hereinafter, the operation of the above configuration will be described. By driving the blower 5, return air in the room to be air-conditioned flows into the ventilation passage through the return air opening 2, and the return air passes through the air filter 6, the cooling coil 7, the heating coil 8, and the blower 5. It flows out of the air supply port 3 into the room to be air-conditioned.
During this time, air is humidified by the indirect steam humidifier 9 on the downstream side of the heating coil 8.

The operation of the indirect steam humidifier 9 will be described below. Pure water or clean water is supplied from the water supply pipe 21 to the water supply tank 18 through the automatic water faucet 22, and the water level of the water supply tank 18 is controlled to the set water level by the automatic water faucet 22. At this time, since the water supply tank 18 communicates with the humidifying can 10 through the supply water pipe 19 and the equalizing pipe 20, the water level inside the water supply tank 18 and the water level inside the humidifying can 10 always become the same water level. For this reason, the water supply tank 18 is
By controlling the water level, the water level inside the humidifying can 10 can be constantly maintained at the set water level.

The electric valve 31 for controlling the amount of humidification is controlled to an appropriate opening by a command from a temperature controller (not shown), and the heating steam is supplied from the heating steam supply pipe 30 to the heating steam distribution pipe 25 through the heating steam inlet 28b. Supply. The heating steam passes through each orifice 27 of the heating medium distribution pipe 30 and the heating pipe 1
5 and is condensed by heating the humidifying water 12 through the heating pipe 15 to become condensed water, and the condensed liquid discharge passage 26
Flows through.

At this time, since the orifices 27 are arranged at appropriate intervals on a spiral trajectory around the axis of the heating steam distribution pipe 25, the heating steam can be evenly distributed over the entire length of the heating pipe 15. In addition, the amount of steam generated for humidification increases due to the improvement of the heating performance.

As shown in FIG. 9, each orifice 2
7 is open in the forward direction of the condensed water flowing through the condensate discharge passage 26, so that the heating steam is ejected from the orifice 27 in the forward direction of the condensed water flow, and
Since the flow of the condensed water in 6 is promoted, the discharging performance of the condensed water is enhanced, and the steam hammer phenomenon due to the condensed water pool hardly occurs.

The drain valve 24 is opened periodically (for example, once a day) to drain all the water in the humidifying can 10 and the water supply tank 18. Then, the drain valve 24 is closed and the water is replaced. It prevents the impurity concentration of water from becoming high. This operation is not necessary for pure water supply.

When humidification is not required in summer or the like, the water supply to the water supply pipe 21 is stopped (the valve is not shown), the drain valve 24 is opened, and the water in the humidification can 10 and the water supply tank is discharged, so that the water is decomposed. prevent.

As shown in FIG. 10, the humidifying steam generated in the humidifying can 10 is supplied from each humidifying steam outlet 11 to the humidifying can 10.
Is supplied directly to the humidification target area outside. Therefore,
The humidification can 10 has a function of generating humidification water (corresponding to a conventional heating tank) and a function of supplying humidification steam to a humidification target area (corresponding to a conventional steam ejection pipe), so that the structure is compact. become. For this reason, it becomes possible to arrange most of the components in the air conditioner, and by installing the components in the air conditioner, the conventional heat retaining means is not required, and the components are arranged outside the air conditioner. No extra installation space is required.

Since the humidifying can 10 and the heating tube 15 can be easily separated from each other at the flange surfaces, maintenance such as cleaning of the inner surface of the humidifying can 10 and the outer surface of the heating tube 15 can be easily performed. Since the heating tube 15 is simply inserted into the cylindrical humidifying can 10 in the axial direction, any humidification can be performed simply by changing the length of the humidifying can 10 and the heating tube 15 and the number of orifices 27. The device for supplying the amount can be designed and manufactured freely and easily, and the manufacturing cost is reduced.

Referring to FIGS. 14 and 15, another embodiment of the present invention will be described. Members that perform the same operations as in the previous embodiment are given the same numbers, and descriptions thereof are omitted. FIG.
4 to 15, a water droplet scattering prevention body 41 is arranged inside the humidifying can 10. The water droplet scattering prevention body 41 forms a shade 41a that covers the entire surface of the water, and the shade 41a
Are provided with a plurality of micro holes 41b penetrating the front and back sides, and are formed of punching metal (hole diameter: 1 mm, pitch: about 3 mm) or the like.

With this configuration, the humidifying steam generated inside the humidifying can 10 is supplied to each of the minute holes 41b of the water droplet scattering prevention member 41.
Through the humidifying steam outlet 11 to the outside of the humidifying can 10. At this time, the water droplet scattering prevention member 41 receives the water droplet scattered from the water surface of the humidifying can 10 due to the boiling of the humidifying water, and prevents the water droplet from scattering to the outside through the humidifying steam outlet 11.

Another embodiment of the present invention will be described with reference to FIGS. Members that perform the same operations as in the previous embodiment are given the same numbers, and descriptions thereof are omitted. FIG.
6 to 20, the heating tube 51 is formed of a U-shaped tube,
One end opening 51 a of the heating pipe 51 communicates with the steam condensed water discharge pipe 29, and the other end opening 51 b communicates with the heating steam supply pipe 30.

In this configuration, the humidifying water is heated by the heating steam flowing through the heating pipe 41. Other functions and effects are the same as those of the previous embodiment. Also in this configuration, as shown in FIGS. 21 to 22, a water droplet scattering prevention member 41 can be provided.

Another embodiment of the present invention will be described with reference to FIGS. Members that perform the same operations as in the previous embodiment are given the same numbers, and descriptions thereof are omitted. FIG.
3 to 28, the humidifying can 61 has a rectangular cylindrical shape with a rectangular cross section, and has a humidifying steam outflow opening 62 that opens along the axial direction on the upper surface. The water droplet scattering prevention body 63 disposed so as to cover the humidification steam outflow opening is provided with a plurality of fine holes 63a penetrating the front and back sides, and is formed of a punching metal (hole diameter 1 mm, pitch about 3 mm) or the like. The heating tube 15 has a double tubular heating steam distribution pipe 25 inside.
Is inserted.

At one end of the humidifying can 61, an inner area is partitioned by a partition wall 6.
A water supply tank section 65 for storing makeup water by partitioning at 4 is provided. An equalizing port 66 for communicating the gas phase section of the humidifying can 61 and the gas phase section of the water supply tank section 65 is formed above the partition wall 64. A supply water port 67 is provided below the partition wall 64 to communicate the liquid phase of the humidifying can 61 and the liquid phase of the water supply tank 65. The water supply tank unit 65 is provided with an automatic water tap 22 for controlling the water level to a set water level. Instead of the automatic water tap 22, a combination of a water level detector and a solenoid valve may be used.

With the above configuration, the humidifying steam generated inside the humidifying can 61 is supplied to each of the micro holes 6
It flows out of the humidification can 61 from the humidification steam outflow opening 62 through 3a. At this time, the water droplet scattering prevention body 63 receives the water droplets scattered from the water surface of the humidifying can 61 due to the boiling of the humidifying water, and prevents the water droplets from scattering to the outside through the humidifying steam outflow opening 62.

The shape of the water droplet scattering prevention member 63 is such that the received water droplet is returned to the inside of the humidifying can 61, and is preferably substantially V-shaped or substantially U-shaped.
Other shapes may be used. Further, by providing the water droplet scattering prevention body 63 detachably and removing the same, the inspection and cleaning of the inside of the humidifying can 61 can be easily performed.

In this embodiment, the heating pipe 15 in which the heating steam distribution pipe 25 is inserted in a double tubular shape is disclosed. However, as shown in FIGS.
It is also possible to form it with a figured tube. Further, the humidifying steam outlets 62 are provided at a plurality of locations, and the humidifying steam outlets 62 are respectively provided.
3 may be arranged.

Referring to FIGS. 33 to 36, another embodiment of the present invention will be described. Members that perform the same operations as in the previous embodiment are given the same numbers, and descriptions thereof are omitted. FIG.
In FIGS. 3 to 36, the humidifying can 61 has a humidifying steam outflow opening 62 that opens along the axial direction on the upper surface, and a cover 71 is detachably disposed to cover the humidifying steam outflow opening 62. One or a plurality of humidifying steam distribution pipes 72 are erected on the cover 71, and the humidifying steam distribution pipe 72 has a steam distribution port 73 that opens along the axial direction toward the upstream side of the airflow. Provided. The water droplet scattering prevention member 74 which is detachably disposed so as to cover the vapor distribution port 73 is provided with a plurality of minute holes 74a penetrating the front and back, and is formed of a punching metal (hole diameter 1 mm, pitch about 3 mm) or the like.

The shape of the water droplet scattering preventing member 74 is such that the received water droplets fall into the inside of the humidifying vapor dispersion tube 72, and is preferably substantially V-shaped or substantially U-shaped, but may be any other shape. .

With the above-described configuration, the humidifying steam generated inside the humidifying can 61 flows into the humidifying steam distribution pipe 72 from the humidification vapor outflow opening 62, and from the steam distribution port 73 of the humidification steam distribution pipe 72. Supply into the surrounding airflow. At this time, the entire surrounding air flow can be humidified by extending the humidifying steam distribution pipe 72 upward from the humidifying can 61 arranged in the horizontal direction.

The cover 71 receives water droplets scattered from the surface of the humidifying can 61 due to the boiling of the humidifying water, and the humidifying steam generated inside the humidifying can 61 passes through the minute holes 74 a of the water droplet scattering prevention member 74. Since the water flows out of the humidifying can 61 from the distribution port 73, the water droplet scattering preventive body 7
4 receives the water droplets of the humidifying water, and prevents the water droplets from splashing outside through the vapor distribution port 73.

In each of the above embodiments, the heating tube 1
5 was formed in a circular cross section,
As shown in FIG. 38, the heating tube 81 may be formed in an elliptical cross section. With this configuration, the heat radiation area of the heating tube 81 increases, and the amount of humidifying steam generated increases. The shape of the heat radiating tube 81 may be changed to a shape having a large heat radiating area such as a rectangular cross section.

As shown in FIGS. 39 to 40, the heating tube 15 may be provided with a plurality of disk-shaped heat radiation fins 82 on the outer peripheral surface thereof, and the heat radiation fins 82 may be formed in a spiral shape. . With this configuration, the heat radiation area of the heating tube 15 increases, and the amount of humidifying steam generated increases. The radiation fins 82 can be changed to other shapes. Further, as shown in FIGS. 41 to 42, the heating tube 15 may be provided with a plurality of strip-shaped heat radiation fins 83 on the outer peripheral surface thereof in a radial manner.

[0057]

As described above, according to the present invention, the function of the humidifying can to generate the humidifying steam (corresponding to the conventional heating tank) and the function of supplying the humidifying steam to the humidification target area (the conventional humidifying tank). (Corresponding to a steam ejection pipe), the structure becomes compact, and most of the components can be arranged in the air conditioner. For this reason, installing in the air conditioner eliminates the need for a conventional heat retaining means and eliminates the need for an extra installation space for disposing members outside the air conditioner. In addition, since it is a simple configuration in which the heating tube is simply inserted in the axial direction into the humidifying can that forms a cylindrical body, an arbitrary humidification amount can be obtained simply by changing the length of the humidifying can and the heating tube and the number of orifices. Freely supply equipment
In addition, it can be easily designed and manufactured, and the manufacturing cost is reduced. Further, since the humidifying can and the heating tube can be easily separated from each other at the flange surfaces, maintenance such as cleaning of the inner surface of the humidifying can and the outer surface of the heating tube becomes easy. Further, since the water supply tank communicates with the humidifying can by the supply water pipe and the equalizing pipe, the water level in the water supply tank and the water level in the humidifying can always have the same water level. For this reason, the water level in the humidifying can can be constantly maintained at the set water level by controlling the water level of the water supply tank with the automatic water tap. In addition, by supplying the heating medium (heating steam) into the heating pipe through each orifice of the heating medium distribution pipe, the heating medium can be evenly distributed over the entire length of the heating pipe, and humidification can be achieved by improving the heating performance. The amount of generated steam increases. In addition, since the heating medium is ejected from the orifice in the forward direction of the flow of the condensate to promote the flow of the condensate in the condensate discharge path, the discharge performance of the condensate is enhanced, and the vapor hammer phenomenon due to the condensate pool is reduced. Less likely to happen. Further, the water droplet scattering prevention member receives the water droplets scattered from the water surface of the humidifying can due to the boiling of the humidifying water, and prevents the water droplets from scattering outside through the humidifying steam outlet or the humidifying steam outlet. Further, by supplying the humidifying steam through the humidifying steam distribution pipe extending upward from the humidifying can arranged in the horizontal direction, the entire surrounding airflow can be humidified. Further, by making the heating tube have an elliptical cross-sectional shape or by providing a radiation fin on the outer peripheral surface of the heating tube, the heat radiation area of the heating tube increases, and the amount of humidifying steam generated can be increased. .

[Brief description of the drawings]

FIG. 1 is a plan view of an air conditioner showing an embodiment of the present invention.

FIG. 2 is a side view of the air conditioner.

FIG. 3 is a schematic view of an indirect steam humidifier showing an embodiment of the present invention.

FIG. 4 is a plan view of the indirect steam humidifier.

FIG. 5 is a sectional view of the indirect steam humidifier.

FIG. 6 is a front view of the indirect steam humidifier.

FIG. 7 is a sectional view of a water supply tank of the indirect steam humidifier.

FIG. 8 is a longitudinal sectional view of a main part of the indirect steam humidifier.

FIG. 9 is an enlarged view of a main part of the indirect steam humidifier.

FIG. 10 is a cross-sectional view of a main part of the indirect steam humidifier.

FIG. 11 is a side view of a main part of an indirect steam humidifier showing another embodiment of the present invention.

FIG. 12 is a sectional view of a main part of the indirect steam humidifier.

FIG. 13 is a front view of the indirect steam humidifier.

FIG. 14 is a longitudinal sectional view of an indirect steam humidifier showing another embodiment of the present invention.

FIG. 15 is a sectional view of a main part of the indirect steam humidifier.

FIG. 16 is a plan view of an indirect steam humidifier showing another embodiment of the present invention.

FIG. 17 is a longitudinal sectional view of the indirect steam humidifier.

FIG. 18 is a front view of the indirect steam humidifier.

FIG. 19 is a sectional view of a water supply tank of the indirect steam humidifier.

FIG. 20 is a cross-sectional view of the indirect steam humidifier.

FIG. 21 is a longitudinal sectional view of an indirect steam humidifier showing another embodiment of the present invention.

FIG. 22 is a cross-sectional view of the indirect steam humidifier.

FIG. 23 is a schematic view of an indirect steam humidifier showing another embodiment of the present invention.

FIG. 24 is a plan view of the indirect steam humidifier.

FIG. 25 is a sectional view of the indirect steam humidifier.

FIG. 26 is an exploded view of the indirect steam humidifier.

FIG. 27 is a sectional view of a main part of the indirect steam humidifier.

FIG. 28 is a front view of the indirect steam humidifier.

FIG. 29 is a plan view of an indirect steam humidifier showing another embodiment of the present invention.

FIG. 30 is a sectional view of the indirect steam humidifier.

FIG. 31 is a sectional view of a main part of the indirect steam humidifier.

FIG. 32 is a front view of the indirect steam humidifier.

FIG. 33 is a plan view of an indirect steam humidifier showing another embodiment of the present invention.

FIG. 34 is a side view of the indirect steam humidifier.

FIG. 35 is a sectional view of a main part of the indirect steam humidifier.

FIG. 36 is a sectional view of a main part of the indirect steam humidifier.

FIG. 37 is a perspective view of a heating tube of an indirect steam humidifier showing another embodiment of the present invention.

FIG. 38 is a cross-sectional view of a main part of the indirect steam humidifier.

FIG. 39 is a perspective view of a heating tube of an indirect steam humidifier showing another embodiment of the present invention.

FIG. 40 is a cross-sectional view of a main part of the indirect steam humidifier.

FIG. 41 is a perspective view of a heating tube of an indirect steam humidifier showing another embodiment of the present invention.

FIG. 42 is a sectional view of a main part of the indirect steam humidifier.

[Explanation of symbols]

 Reference Signs List 9 indirect steam humidifier 10 humidifying can 11 humidifying steam outlet 12 humidifying water 15 heating pipe 18 water supply tank 19 makeup water pipe 20 equalizing pipe 22 automatic water tap 25 heated steam distribution pipe 26 condensate discharge path 27 orifice 61 humidifying can 62 Humidification steam outflow opening 63, 74 Water droplet scattering prevention body 63a, 74a Micro hole 71 Cover 72 Humidification steam distribution pipe 73 Steam distribution port 82, 83 Radiation fin

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masaaki Shinohara 28 Hirade Industrial Park, Utsunomiya City, Tochigi Pref. (72) Inventor Hiroyuki Kato 28 Hirade Industrial Park, Utsunomiya-shi, Tochigi Kubota Sora Tochigi Plant F-term (reference) 3L055 BC03 CA08 DA03 DA06

Claims (11)

[Claims] 1. A humidifying can having a plurality of humidifying steam outlets on an upper surface and storing a humidifying water at a predetermined water level inside, and a shaft center in the humidifying can. A humidifier, wherein the humidifier is provided with a heating tube for heating the humidified water with a heating medium supplied into the humidifier. 2. A water droplet scattering prevention member having a hat-shaped body covering the entire surface of the water inside the humidifying can and having a plurality of minute holes penetrating the front and back of the hat-shaped body. 2. The indirect steam humidifier according to 1. 3. A humidifying humidifier which has a cylindrical body arranged in a horizontal direction, has at least one humidifying steam outflow opening which is opened in an axial direction on an upper surface, and stores therein humidifying water at a predetermined water level. A can, a water droplet scattering prevention member arranged over the humidification steam outflow opening and having a plurality of fine holes penetrating the front and back, and a heating medium inserted into the humidification can in the axial direction, immersed therein, and supplied to the inside An indirect steam humidifier comprising: a heating pipe for heating the humidifying water with the heating pipe. 4. A humidifying can that forms a tubular body arranged in a horizontal direction, has at least one humidifying steam outflow opening that opens along an axial direction on an upper surface, and stores therein humidifying water at a predetermined water level. A cover arranged to cover the humidification steam outflow opening, at least one humidification steam distribution pipe erected on the cover, and at least one steam opening along the axial direction formed in the humidification steam distribution pipe. Place it over the distribution port,
It is provided with a water droplet scattering prevention body having a plurality of micro holes penetrating the front and back, and a heating tube which is inserted into the humidifying can in the axial direction and immersed therein, and heats the humidifying water with a heating medium supplied inside. Characteristic indirect steam humidifier. 5. An opening is formed at one end in the axial direction of the humidifying can, a humidifying can flange is provided around the opening, and one end of a heating tube inserted into the humidifying can is joined to the humidifying can flange. The indirect steam humidifier according to any one of claims 1 to 4, wherein a heating pipe flange is provided, and the humidifying can and the heating pipe are flange-connected. 6. A water supply tank for storing therein make-up water to be supplied to the humidifying can, a make-up water pipe communicating the water supply tank with the liquid phase of the humidifying can, and a water supply tank communicating with the gas phase of the humidifying can. The indirect steam humidifier according to any one of claims 1 to 5, further comprising: a pressure equalizing pipe that performs the operation; and an automatic water faucet that controls a water level of the water supply tank to a set water level. 7. A water supply tank section for storing makeup water at one end of the humidifying can by partitioning an inner region of the humidifying can with a partition wall,
An equalizing port is provided at the upper part of the partition wall for communicating the gas phase part of the humidifier and the gas phase part of the water supply tank, and the liquid part of the humidifier and the liquid part of the water supply tank are provided at the lower part of the partition. The water supply port which communicates was provided, and the automatic water tap which controlled the water level of a water supply tank part to a set water level was provided, The any one of Claims 1-5 characterized by the above-mentioned.
The indirect steam humidifier according to the paragraph. 8. The indirect steam humidifier according to claim 1, wherein the heating tube is formed of a U-shaped tube. 9. The heating medium distribution pipe according to any one of claims 1 to 7, wherein a heating medium distribution pipe is inserted and arranged in a double tube inside the heating pipe, and a plurality of orifices are formed in the heating medium distribution pipe. Indirect steam humidifier as described. 10. An orifice formed in a heating medium distribution pipe is formed so as to face a forward direction of a condensed liquid flowing through a condensed liquid discharge passage formed between the heating pipe and the heating medium distribution pipe. An indirect steam humidifier according to claim 9. 11. The indirect steam humidifier according to claim 1, wherein a radiation fin is provided on an outer peripheral surface of the heating tube.