JPH03267182A - Apparatus for drying fire hose - Google Patents

Abstract

PURPOSE:To dry a fire hose with little electric power consumption and in a short time without selecting used surroundings by using the air with the whole heat exchanged in a self system while heating the air with a heater. CONSTITUTION:A heat exchanger 3 introduces the outside air and also by exchanging the heat between the outside air and the air after used to the drying for heating, the air after executing heating is exhausted. In this heat exchanger 3, the outside air subjected to heat exchange is heated with the heater 6. The air heated with this heater 6 is introduced into a drying chamber 7 for drying the fire hose. The air used for drying chamber 7 is introduced into the heat exchanger 3 with a duct 19. Then, the outside air is introduced from air introducing side of the heat exchanger 3 with a blower 4 and is discharged from air discharging side in the heat exchanger 3 through the heater 6 and the drying chamber 7. In this result, the fire hose can be dried with little electric power consumption and in a short time without selecting the used surroundings.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a fire hose drying device for drying fire hoses using heated air.

[Conventional technology]

Once a fire hose has been used, it must be cleaned and dried before next use. Drying the fire hose
Drying in the sun was common, and they were hung from high buildings such as fire watchtowers to drain water and expose them to the sun and let the wind through. However, when drying using the natural environment in this way, drying cannot be done when the weather is bad.

In addition, in cold regions, it may freeze during the winter and be unable to dry at all. For this reason, recently, dryers are often used for drying.

[Problem that the invention seeks to solve]

This type of dryer circulates heated air, exhausts a portion of the air, and uses a dehumidifier to remove moisture contained in the heated air.

However, according to this configuration, when using a 9K11 heater, the time required to dry 10 hoses with a length of 20 m and a diameter of 65 mφ is approximately 8 hours, and although it is not affected by the weather or season, the power consumption There were complaints that the volume was large and it took too much time. [Means for solving the problem] This invention was made to solve the above-mentioned conventional problems, and its structural features are that A heat exchanger that exchanges heat between the outside air and the heated air used for drying and exhausts the heated air, and a heater that heats the outside air that has been heat exchanged with the exchanger. A drying room for drying fire hoses into which heated air heated by a heater is introduced, a duct that leads the air used in the drying room to the heat exchanger, and a duct that introduces outside air from the air introduction side of the heat exchanger. ,
The present invention includes a blower for discharging air from the air discharge side of the heat exchanger via the heater and the drying chamber.

The fire hose to be dried is folded into a Shimada shape on a tray and placed in the drying chamber. At this time, it is preferable to interpose a spacer in each folded hose portion. More preferably, far-infrared paint may be applied to the spacer, the tray, and the wall surface of the drying chamber.

[For production]

In the fire hose drying device configured as described above, when outside air is introduced into the heater side, the outside air is heated by a heat exchanger by exchanging heat with the worked air discharged through the drying chamber to raise the temperature. Next, this preheated outside air is sent to the heater side by a blower and heated to a predetermined temperature. Air heated to a predetermined temperature enters the drying room, passes between fire hoses stored in the drying room, passes through a heat exchanger with the moisture contained in the fire hoses, and is then newly introduced as above. After exchanging heat with the cold outside air, it is exhausted into the atmosphere. In this case, by interposing a spacer between the folded hose members, so-called ventilation is improved, so that drying efficiency is further improved.

Furthermore, by using far-infrared paint, the drying efficiency is further promoted.

〔Example〕

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a schematic perspective view of the fire hose drying device according to this embodiment, viewed from the back side. According to this, the fire hose drying device basically consists of an upper structure 1 and a lower structure 2. The upper structure 1 includes a heat exchanger 3,
A blower 4 serving as a source for introducing outside air and circulating air, and an operation display panel 5 as shown in the front view of FIG. 2 are provided. The lower structure 2 also includes a heater 6 that heats the air supplied by the blower 4, a drying chamber 7. A storage box 8 and a control box 9 are provided. The upper structure 1 and the lower structure 2 are surrounded by upper and lower casings 10 and 11, respectively. In this case, the first
As shown in the drawings and FIG. 2, the intake port 13 of the entire device is formed on the lower casing 11 side. Note that the exhaust port 20 is bored on the upper casing 10 side.

According to this embodiment, a cross-flow type plate-fin type total heat exchanger is used as the heat exchanger 3, and the heat exchanger 3 introduces outside air from an air inlet 12 and a first duct 14. It communicates with the blower 4 through a second duct 15, and further communicates with the heater 6 through a second duct 15.

The heater 6 is installed on a hollow bottom casing 17 in which a third duct 16 is formed. A large number of openings 18 are formed on the opposite side of the bottom housing 17 from the mounting portion of the heater 6, and a drying chamber 7 is provided above the openings 18. Thereby, the air heated by the heater 6 is supplied into the drying chamber 7 from the opening 18 through the third duct 16. A fourth duct 19 is provided in the upper part of the drying chamber 7, and the drying chamber 7 communicates with the exhaust side of the heat exchanger 3 through this, and the above-mentioned exhaust port 20
The heated air that has undergone heat exchange is discharged from the

In the drying chamber 7, as shown in FIGS. 3 and 4, a plurality of trays 21, ten in this embodiment, are installed in a removable manner. Referring to FIG. 5, this tray 21 consists of a box with a shallow bottom and an open top surface, in which a large number of air circulation holes 21a are bored.
The fire hose 22 to be dried is bent into, for example, an orishimada shape and placed. At this time, it is preferable to insert a spacer 23 between each adjacent hose portion of the bent fire hose 22 with the intention of increasing the passing efficiency of the hot air. Also, the 6th
As shown in the cross-sectional view of the main part of the figure, a louver-shaped protrusion 24 is cut and raised at a predetermined portion of the spacer 23 to prevent the generation of an unnecessary temperature boundary layer during air blowing, and an opening 25 is formed accordingly. It is good to have one. In addition, this protrusion 2
4 may be simply a mountain shape as illustrated in FIG. Furthermore, in order to further improve the drying efficiency, far-infrared paint may be applied to the spacer 23, the tray 21, and the wall surfaces of the drying chamber 7.

This far-infrared paint may be an existing one, but in this example, a binder made of alkoxysilane and water-dispersible silica (for example, Cerahit (trade name) manufactured by Hinomaru Paint ■) is added to the following paint components. In addition, far-infrared paint is used.

Total amount of silicic acid (Sun) 65.5SL Soluble silicic acid (
Sins ) 0.20%, total amount of magnesium (MgO) 1.6
1%, <Soluble magnesium (MgO) 0.15%9 Total amount of lime (
Cab) 2.38%, alkaline content (Cab) 1.40
%, ammonia nitrogen (N) 0.005%, nitrate nitrogen (N) 0.02%, total amount of phosphoric acid (P, 0.) 0.0
2%, total potassium (K, 0) 1.50%, sodium oxide (Na20) 1.86%.

Iron oxide (Fe, O,) 3.06%, aluminum oxide (A120.) 14.79%, manganese (MnO) 0
．． 05%, zinc (Zn) 0.01%.

Molybdenum (Mo) 0.006%, boron (B) 0
．． 01%, titanium (Tio,) 0.22%, basic substituent 50.0m, e, (PH7,8) A baffle plate 26 is disposed at the top of the drying chamber 7, and the upper surface side of the baffle plate 26 A fourth duct 19 is in communication with the fourth duct 19 . As a result, the flow of the heated air blown from below is blocked by the baffle plate 26, and after sufficiently staying in the drying chamber 7, it reaches the heat exchanger 3 side. As shown in the front view of FIG. 2, the tray 21 is set by opening the door 27. In addition, this drying room 7
Adjacent to the door 27 are doors 28 and 29 for the storage box 8 and the control box 9, respectively. The storage box 8 is a space for storing, for example, firefighting uniforms, shoes, earth-warmed items, or trays.
Space for stairs is secured.

The control box 9 is for storing control devices including control circuits, power supply circuits, etc., and the blower 4 of this fire hose drying device.
And the operation of the heater 6 is controlled electrically. In addition, the display panel 5 provided on the upper casing 10 in the front view is provided with display lamps that indicate operations and abnormalities associated with the operation of this fire hose drying device, as well as notes and the like. ing. Further, the bottom housing 17 is provided with a drainage mechanism (not shown), and the bottom housing 17 is drained from the opening 18.
The water drips into the third duct 16 of the tank, and the accumulated water can be drained.

The upper and lower casings 10 and 11 are provided because it is necessary to have a drip-proof structure because this fire hose drying device is installed outdoors, and they are provided with a drying chamber 7, a heater 6, and a second casing.
It is intended to prevent rainwater from seeping into the heat insulating material 30 surrounding the third and fourth ducts 15, 16, 19, etc.

Further, the upper casing 10 is intended to insulate the blower 4 from sound, and together with the provision of the intake port 13 in the lower casing 11, quiet operation is possible. In this connection, the outside air is drawn into the casing through the inlet 13 and reaches the air inlet 12 of the heat exchanger 3, in which case the inlet 13 is provided in the lower casing 11 as described above. Since the outside air sucked into the casing comes into contact with the walls of the drying room and each duct more,
Heat is received by the air while reaching the air inlet 12, and waste heat is utilized more effectively. At the lower end of the lower casing 11, wheels 31 for movement and fixed legs 32 for horizontal adjustment are provided.

To dry the fire hose, first, the fire hose 22 is bent into a folded Shimada shape on the tray 21, and a spacer 23 is inserted between each adjacent fire hose section. This is done for the number of pieces to be dried, and the number of shelf supports in the drying chamber 7 is 33.
and close the door 27.

When preparations for drying are completed in this way, the blower 4 and heater 6 in the control box 9 are turned on. As a result, the air entering the casing 11 from the intake port 13 is introduced into the heat exchanger 3 from the air inlet 12 after removing waste heat from, for example, the drying chamber 7 or the duct 15 as described above. The air is guided to the heater 6 side via the blower 4. The air heated by the heater 6 further passes through the third duct 16, enters the drying chamber 7 through the opening 18, and rises from below through between the fire hoses 22. When it reaches the top of the drying chamber 7, it hits the baffle plate 26 and the fourth duct 1
9 and enters the exhaust side of the heat exchanger 3. Then, it exchanges total heat with the air on the intake side as described above, and is exhausted from the exhaust port 20.

In this way, the outside air is heated by taking it into the mass casing 11, and is further led to the heat exchanger 3, where it exchanges heat with the hot air that has already been heated and contains moisture, and after raising the temperature of the taken air, By heating with the heater 16 to reach a predetermined drying temperature, heat loss is greatly reduced, and thermal efficiency is significantly improved compared to the conventional method. Incidentally, even if a 5KW heater is used, it takes only 4 hours, half the time required to dry 10 hoses with a length of 20m and a diameter of 65a+mφ, which is the same as in the conventional example, even if a 5KW heater is used. Therefore, if air is supplied to the drying chamber 7 using such a heating cycle, it will use 5/9 of the electricity and take half the time, so in terms of economic efficiency, it will only require 2.5/9 of the electricity of the conventional method. .

As described above, according to the above embodiment, the fire hose can be dried in a short time with less electric power because the thermal efficiency is good. In addition, since the fire hose drying device is surrounded by the casings 10 and 11, it is weatherproof and can be installed outdoors for a long period of time. You can also get

〔Effect of the invention〕

As explained above, according to the present invention, since the air that has undergone total heat exchange within the system is heated by a heater and used, fire hoses can be used in any usage environment with low power consumption and in a short time. Can be dried.

[Brief explanation of drawings]

All figures are for detailed explanation of this invention.
The figure is a schematic perspective view of the fire hose drying device according to the same embodiment as seen from the back side, FIG. 2 is a front view of the fire hose drying device, and FIG. 3 is a schematic cross-section of the fire hose drying device seen from the side. Figure 4 is a schematic diagram of the configuration seen from the front, and Figure 5 is a perspective view showing the fire hose set in the tray.
FIG. 6 and FIG. 7 are explanatory diagrams showing the relationship between the fire hose and the spacer, respectively. In the figure, 1 is the upper structure, 2 is the lower structure, 3 is the heat exchanger, 4 is the blower, 6 is the heater, 7 is the drying chamber, 10 is the upper casing, 11 is the lower casing, and 12 is the air 13 is an inlet, and 20 is an exhaust port. Figure 1

Claims (3)

[Claims] (1) A heat exchanger that introduces outside air, exchanges heat with the heated air used for drying, and exhausts the heated air; A heater for heating, a drying room for drying fire hoses into which the heated air heated by the heater is introduced, a duct that leads the air used in the drying room to the heat exchanger, and an air introduction for the heat exchanger. A fire hose drying device comprising: a blower that introduces outside air from the side, passes through the heater and the drying chamber, and discharges air from the air discharge side of the heat exchanger. (2) The fire hose dryer according to claim 1, wherein the fire hose is folded into a folded Shimada shape on a tray that is removably placed in the drying chamber, and a spacer is interposed between the hose members. Device. (3) The fire hose drying device according to claim 2, wherein a far-infrared paint is applied to either the spacer, the tray, or the wall surface of the drying chamber.