JP3213889U - Drying room equipment - Google Patents

Abstract

The present invention provides a drying room facility that can efficiently dry a wheelchair, a nursing bed, and the like after being accommodated in a drying room. A drying chamber facility 10 is connected to a hot air generator 11, a supply duct 13 that guides hot air generated by the hot air generator 11 into the drying chamber 1, and a supply duct 13. And an exhaust duct 15 arranged and held in a piping layout. In the exhaust duct 15, exhaust holes 16 whose opening diameters change according to the distance from the hot air generator 11 are arranged at a predetermined interval along the longitudinal direction of the duct on a part of the duct peripheral surface. [Selection] Figure 2

Description

  The present invention relates to a drying room facility, and more particularly to a drying room facility that can efficiently and efficiently dry a wheelchair, a nursing bed, etc. as rental equipment that is cleaned and used repeatedly.

  Nursing care beds and wheelchairs as nursing care products are often used as rental equipment, in which case the nursing care beds and wheelchairs once returned are cleaned, dried and rented again. In establishments and the like where work for reusing these many nursing beds and wheelchairs is performed, a facility environment with high work efficiency in each stage of cleaning and drying work is required.

  Among these series of operations, the drying operation employs a method in which a nursing bed and a wheelchair are accommodated in a drying chamber, and the drying is performed by raising the room temperature. For example, bathroom dryers are used as high-temperature equipment for this drying room. However, since the drying efficiency is low and it takes too much work time, a dedicated hot air blower etc. must be installed indoors and used. Is also possible. However, high-temperature hot air blowers tend to generate high temperatures locally, and parts of urethane materials such as mattresses of nursing beds placed in the immediate vicinity are often damaged. Therefore, in order to realize drying with a large air volume, a method has been proposed in which a chamber box having a plurality of blowing portions is installed in a drying chamber and hot air from a high-temperature hot air blower is blown out.

  Further, as a similar facility, a bedding dryer using steam and hot air has been proposed as a facility capable of sterilizing and drying a futon as a care product (Patent Document 1). This dryer includes a hot air outlet and a steam outlet at the lower part of the drying chamber, and a suction hole is provided in the ceiling. In this dryer, after the futon to be dried is brought to a high temperature state by high-temperature steam, the dried duvet can be sterilized and dried by flowing hot air from the bottom to the top of the drying chamber.

Japanese Patent Laid-Open No. 11-276799

  The above-mentioned chamber box is required to be made of stainless steel or the like because it requires heat resistance that can maintain a high temperature state, and the chamber box is generally a stationary facility, so a part of the drying chamber is where the chamber box is installed. Therefore, the space for placing the equipment is limited and the equipment becomes expensive. In addition, in the invention disclosed in Patent Document 1, sufficient sterilization and drying can be realized, but the control process for that is complicated, and the scale of the drying chamber cannot be increased so much that the processing efficiency of the drying operation is sufficient. There is a problem that cannot be expected.

  Therefore, the purpose of the present invention is to provide a drying room facility that solves the problems of the above-described conventional technology, can be laid out flexibly according to the scale of the drying room, and can perform an inexpensive and efficient drying operation. It is to provide.

  In order to achieve the above object, a drying room facility according to the present invention includes a hot air generator, a supply duct for guiding the hot air generated by the hot air generator into the drying chamber, and a supply pipe connected to the supply duct. A drying chamber facility having an exhaust duct arranged and held in a layout, wherein the exhaust duct has an exhaust hole whose opening diameter is changed in accordance with a distance from the hot air generator in a part of a duct peripheral surface. Are arranged at predetermined intervals along the longitudinal direction of the duct.

  The exhaust hole preferably increases the opening diameter as the exhaust duct moves away from the hot air generator.

  Moreover, it is preferable that the said exhaust hole sets an opening diameter for every predetermined range of the said exhaust duct.

  Preferably, the exhaust duct is a spiral duct, and the exhaust holes are arranged at predetermined intervals along the spiral direction on a peripheral surface along a spiral goby formed on the peripheral surface of the exhaust duct.

  The exhaust duct is preferably arranged and held so that the exhaust hole faces a drying object accommodated in the drying chamber.

  According to the present invention having the above-described configuration, a flexible piping layout is possible according to the scale of the drying chamber, so that it is possible to provide an inexpensive and efficient drying chamber facility.

Explanatory drawing which showed an example of the piping layout and working state of the exhaust duct in the drying chamber in the drying chamber equipment of this invention. The schematic front view which showed typically the structure of the drying chamber shown in FIG. The schematic plan view which showed typically the structure of the drying chamber shown in FIG. The elements on larger scale and the expanded sectional view of the exhaust duct utilized for drying room equipment. The schematic front view which showed typically the other piping layout example of the exhaust duct.

  Hereinafter, an embodiment of a drying room facility of the present invention will be described with reference to the accompanying drawings. FIG. 1 shows the inside of a drying room facility 10 of the present invention. A large number of wheelchairs C and folding nursing beds B that have been returned as rental equipment and have been cleaned in each part are accommodated in the drying chamber 1, and exhaust piped between the upper end of the wall and the ceiling surface 5. A state in which dry hot air is blown out from the exhaust hole 16 of the duct 15 is schematically shown. In the drawing, for the sake of simplification, the outer shapes of the care bed B and the wheelchair C accommodated in the drying chamber 1 are schematically shown in a rectangular parallelepiped.

  As shown in FIGS. 1 to 3, the drying room facility 10 of the present invention dries hot air generator 11 installed on the beam assembly 3 in the ceiling space 2 and hot air output from the hot air generator 11. It comprises a hot air supply system 12 introduced into the chamber 1 and an exhaust heat recovery system 20 for reheating part of the high-temperature air filled in the drying chamber 1 as suction air of the hot air generator 11. . The hot air generator 11 can blow hot air up to a maximum temperature of about 350 ° C. with a known electrothermal device, and can set the hot air temperature to a predetermined temperature by external control. When used in the present invention, it is set to a relatively high temperature in order to supply hot air from many exhaust holes 16 of the exhaust duct 15 described later.

  The hot air supply system 12 includes a supply duct 13 and an exhaust duct 15. The supply duct 13 is piped in the ceiling space 2, the outer periphery of the duct is covered with a heat insulating material 14, and the temperature drop of the hot air in the duct until it is supplied into the drying chamber 1 is minimized. As the supply duct 13 and the exhaust duct 15, a spiral duct having a diameter of 125 mm is used in the present invention. In consideration of heat resistance and corrosion resistance, this spiral duct is made of a Galvalume steel plate (registered trademark) duct, but it goes without saying that a general duct made of galvanized steel plate or a stainless steel pipe can be used. Absent.

  FIG. 4A is a schematic front view showing the entire straight pipe of a spiral duct used as the exhaust duct 15 piped in the drying chamber 1. On the peripheral surface of the spiral duct used as the exhaust duct 15, as shown in an enlarged view in FIG. 5 (b), four exhaust holes 16 form a set and form a spiral shape (spiral). Continuously with a predetermined opening pitch (interval) L in a row along the spiral direction in the range of one circumference of the pipe circumferential surface divided by the goby 15b (folded portion of the duct steel plate end) to be formed Is formed. Further, when the arrangement state of the exhaust holes 16 is viewed as the exhaust duct 15 as a whole, as shown in FIG. 4A, a plurality of (four in this embodiment) exhaust holes 16 are predetermined along the longitudinal direction of the duct. It can be seen that they are arranged at intervals P.

  In the present embodiment, round holes having an opening diameter of 8 to 12 mmφ are continuously formed as the exhaust holes 16 at intervals as described above. The opening diameter formed in the exhaust hole 16 is changed so as to increase stepwise according to the distance from the hot air generator 11 of the exhaust duct 15 extending into the drying chamber 1. That is, a uniform temperature rise in the drying chamber 1 can be maintained by supplying a sufficient amount of air as the temperature of the wind decreases with increasing distance from the hot air generator 11 as a heat source. In the present embodiment, as shown in FIG. 3, in the exhaust duct 1, the opening diameter of the exhaust hole 16 of the exhaust duct 15 </ b> H <b> 1 along the wall surface 6 on the supply duct 13 side is 8 mmφ, and the exhaust along the side wall surface 6. The opening diameter of the exhaust hole 16 of the duct 15H2 is set to 10 mmφ, and the opening diameter of the exhaust hole 16 of the exhaust duct 15H3 along the wall surface 6 opposite to the position of the supply duct 13 is set to 12 mmφ. These hole diameters φ, pitches (intervals) P of the holes along the spiral direction (FIG. 4 (b)), the number, the distance from the heat source, the necessary amount of hot air exhausted into the drying chamber 1 is considered. Can be set as appropriate.

  Here, the piping layout of the exhaust duct 15 in the drying chamber 1 will be described with reference to FIGS. The vertical pipe 13 </ b> V of the supply duct 13 in the ceiling space 2 passes through the ceiling plate 4 of the drying chamber 1, and is an exhaust duct 15 that is piped between the peripheral edge of the ceiling surface 5 of the drying chamber 1 and the upper end of the wall 6. It is connected to a part of. As shown in FIG. 3, the exhaust duct 15 is connected to a straight pipe 15A (FIG. 4A) connected to a predetermined length according to the wall length using a 90 ° bend pipe 15B at each corner. Then, at the position opposite to the connecting portion of the supply duct with the vertical pipe 13V and the room, each duct end portion 15a is closed with a cap 17 to constitute a closed piping structure. The exhaust duct 15 is held by a known suspension band (not shown) attached at a predetermined interval along the longitudinal direction of the duct, and is suspended from the ceiling surface 5 via a suspension bolt (not shown). The direction of the ducts of the exhaust holes 16 of the exhaust duct 15 is adjusted so that the four hole positions face downward. In this embodiment, one side of the drying chamber 1 is about 3.4 m, and the total length of the exhaust duct 15 is about 12.5 m. The output air volume of the hot air generator 11 is set so that a sufficient exhaust volume is exhausted from the exhaust hole 16 near the duct end 15a of the exhaust duct 15 in consideration of the entire length of the exhaust duct 15.

  The exhaust heat recovery system 20 includes a return air duct 21 as a return pipe to the hot air generator 11. As shown in FIGS. 2 and 3, the return air duct 21 of the present embodiment is vertically piped at the corner on the wall surface 6 side opposite to the supply duct 13 piped in the drying chamber 1. Is formed of a vertical duct 21V extending to the ceiling space 2 and a horizontal duct 21H connected at the upper end of the vertical duct 21V and having a pipe end 21b connected to the hot air generator 11. In the present embodiment, as shown in FIG. 3, the horizontal duct 21 </ b> H has two horizontal ducts 21 </ b> H extending from both corners of the drying chamber 1 as a single duct via a T-shaped tube 22. The end 21 b is connected to the hot air generator 11.

  In the present embodiment, the circulator 30 is installed on the ceiling surface 5 between the facing duct end portions 15a so that the blowing direction is obliquely downward. By operating the circulator 30, the temperature in the drying chamber 1 is made uniform.

  FIG. 5 is a schematic front view showing another piping layout example of the exhaust duct 15 in the drying chamber 1. In this piping layout, the exhaust duct 15 having the exhaust holes 16 is piped in a downward U-shape in the entire width of the lower half in the drying chamber 1. Each exhaust duct 15 is adjusted and held sideways so that each exhaust hole 16 faces the center of the drying chamber 1. As the opening diameter of the exhaust hole 16 of each exhaust duct 15, the opening diameter of the exhaust hole 16 of the horizontal duct 15H connected to the tip of the vertical pipe 13V of the supply duct 13 is 10 mmφ, and the opening diameter of the exhaust hole 16 of the vertical duct 15V. Is set to 12 mmφ.

  When the exhaust ducts 15 cannot be anchored to the wall 6, it is preferable to assemble a metal rack (not shown) or the like and place and fix them on the rack. In such a piping layout example, a temperature rise in a low height range in the drying chamber 1 is expected. When the object to be dried is a short wheelchair or the like, a sufficient drying effect can be expected even when the drying chamber 1 has such a temperature distribution. When it is desired to make the temperature in the drying chamber 1 uniform, it is preferable to generate heat convection by using ancillary equipment such as a floor circulator (not shown). In this piping layout, the suction port 21a of the return air duct 21 of the exhaust heat recovery system 20 is located near the ceiling. Thereby, efficient exhaust heat recovery of warm air rising in the drying chamber 1 is possible.

  As described above, according to the present invention, the exhaust duct 15 provided with a large number of exhaust holes 16 shown in FIG. 4 (a) is set in a direction so that an appropriate air direction can be obtained. Since only piping is performed in the drying chamber 1 with an appropriate piping layout, the drying efficiency in the drying chamber 1 can be greatly improved at low cost.

  In addition, this invention is not limited to embodiment mentioned above, A various change within the range shown to each claim is possible. In other words, embodiments obtained by combining technical means appropriately changed within the scope of the claims are also included in the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Drying room 2 Ceiling space 5 Ceiling surface 6 Wall 10 Drying room equipment 11 Hot air generator 12 Hot air supply system 13 Supply duct 15 Exhaust duct 16 Exhaust hole 20 Waste heat recovery system 21 Return air duct 30 Circulator

Claims (5)

Drying room equipment comprising a hot air generator, a supply duct for guiding the hot air generated by the hot air generator into the drying chamber, and an exhaust duct connected to the supply duct and arranged and held in a predetermined piping layout in the drying chamber Because
The drying duct is characterized in that an exhaust hole whose opening diameter is changed according to a distance from the hot air generator is arranged at a predetermined interval along a longitudinal direction of the duct on a part of a duct peripheral surface. Room facilities.   The drying chamber facility according to claim 1, wherein the exhaust hole has a larger diameter as the exhaust duct moves away from the hot air generator.   The drying chamber facility according to claim 1 or 2, wherein an opening diameter of the exhaust hole is set for each predetermined range of the exhaust duct.   The exhaust duct is a spiral duct, and the exhaust holes are arranged at predetermined intervals along a spiral direction on a peripheral surface along a spiral goby formed on the peripheral surface of the exhaust duct. Item 4. The drying room facility according to any one of items 3 to 4.   The drying chamber equipment according to claim 1, wherein the exhaust duct is installed so that the exhaust hole faces a drying object accommodated in the drying chamber.

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