JPH0425499Y2 - - Google Patents

Description

[Detailed Description of the Invention] A. Field of Industrial Application The present invention relates to a storage shed for housing equipment that is operated unmanned. More specifically, the housing of the present invention accommodates broadcasting equipment, radio relay equipment, telemeters, monitoring equipment, alarm equipment, etc., and is used for river management, disaster prevention information, road information, and measures to prevent difficult viewing of television. It is used to house microwave relays, control equipment for emergency private generators in factories, hospitals, etc.

B. Conventional technology When operating equipment used for control, management, communication, broadcasting, etc., a relatively large amount of heat is generated, and unless appropriate measures are taken, the high temperature can cause these equipment to malfunction. In order to achieve this, cooling means for these equipment devices are always required.

Particularly in housing buildings that house unmanned disaster prevention information equipment, there is a problem in that high reliability is required during times when environmental conditions such as external temperature and humidity are severe. Temperature measures for the containment buildings housing these devices have traditionally been mainly forced ventilation methods or cooler methods used for general cooling purposes (hereinafter simply referred to as cooler methods).
It has been implemented in

It is also required that the temperature and humidity in the housing room be maintained within a range that allows the equipment to operate stably. The range of temperature and humidity in which this device operates stably is becoming wider year by year, and it is becoming possible to maintain it at the temperature and humidity of normal outdoor air. In addition, the amount of heat generated by these devices while operating tends to gradually decrease as the performance of these devices improves, so a cooler-type cooling system is installed as a countermeasure for the temperature of these devices. Increasingly, there is no need for it.

However, there is an increasing tendency for equipment housed in storage buildings to deteriorate and malfunction due to humidity, salt, dust, and harmful gases. This is because forced ventilation allows these moisture, salt, dust, and harmful gases to enter, so there is an increasing demand for enclosures to be sealed, but in the past, cooler systems had to be used to do so. I didn't get it. However, the operating costs of this cooler system are quite high, and the failure rate of this cooler system is relatively high.

In particular, when unmanned enclosures are used as relay stations related to communication lines, there is an increasing number of systems that transmit a large amount of important information, such as computer networks, and if this equipment goes down due to a malfunction. Situations often occur in which all related work becomes paralyzed.

Since it takes several hours for someone to go to the site of this relay station for repairs, there is a need for a high-performance housing facility to maintain the stable operation of these devices.

C. Problems that the invention aims to solve This invention solves the problem of the high cost of temperature measures in conventional equipment storage buildings, and the problem of deterioration of equipment due to the intrusion of moisture, salt, dust, and harmful gases. The purpose is to resolve the points.

D. Means for Solving the Problems The present invention provides a storage building in which equipment is housed in a substantially sealed room whose outer periphery is covered with a material with good heat insulation properties, and the air in the room is sealed. By forcibly circulating the air through a heat exchanger, it exchanges heat with outdoor air, making it possible to keep the temperature difference between indoor air and outdoor air small.

The closed type heat exchanger according to the present invention is of a type in which the gas being vented for heat exchange does not leak out from the heat exchanger. Specific types of this closed type heat exchanger include a multi-tube type, a coiled tube type, a double-tube type, and a diaphragm type.

Therefore, a system in which indoor gas is moved outside, such as a so-called total energy exchange system in which indoor air is forcedly ventilated, is not suitable.

E. Example The present invention will now be explained with reference to the drawings. FIG. 1 is a schematic longitudinal cross-sectional view of a storage building (hereinafter referred to as a building) for housing equipment showing one embodiment of the present invention. The building 1 has its entire circumference covered with a material with good heat insulation properties, and a ventilation fan 2 sucks indoor air and sends it to a heat exchanger 3, which is a multi-tubular heat exchanger. , the air exiting through the heat exchanger 3 is returned to the room. The air circulation path passing through the heat exchanger 3 is configured to be substantially isolated from outside air.

The shell-and-tube heat exchanger is not limited to one in which the tubes are arranged diagonally as shown in FIG. This tube may be arranged horizontally or vertically, and it is also possible to use a tube other than a straight tube. Furthermore, it is preferable to attach fins to this tube.

The outside of the heat exchanger 3 is cooled by outdoor air. In Figure 1, the eaves 4 and the cover 5 form a ventilation duct for outdoor air, and due to the chimney effect of this ventilation duct, the outdoor air efficiently flows around the heat exchanger, cooling the indoor air. let

Another role of the eaves 4 and the cover 5 is to prevent the heat exchanger 3 from being heated by sunlight and the cooling effect being impaired.

For this reason, the eaves 4 and the cover 5 are processed to reflect light, or made of a heat insulating material.

Attach a temperature switch to the power supply of ventilation fan 2,
It is preferable to stop the ventilation fan 2 when the indoor temperature becomes low enough to maintain the performance of the equipment without performing heat exchange with outdoor air. By providing such a mechanism, it is possible to reduce troubles caused by the indoor temperature dropping too much.

Although it is possible to provide entrance doors and windows in the shed 1, it is necessary that they can be easily sealed. The degree of sealing of the shed of this invention is as follows:
It does not need to be sophisticated enough to perform a leak test by pressurization, and at the location where this building is installed,
It is sufficient that the people inside the building do not feel any air leakage against the dynamic pressure that occurs under normally considered strong winds.

The building must be made of highly insulating materials to prevent the indoor temperature from rising due to heat transfer from the outside or from sunlight. For this purpose, thick insulation material may be attached to the outer panel of the building, or the building may be constructed of structural materials with excellent heat insulation properties.

Foamed concrete products are examples of structural materials with excellent heat insulation properties. Examples of the present invention also used this foamed concrete product.

As the foamed concrete product, an autoclave-cured precast board is particularly preferable because its heat insulating performance changes little over time.

In the case of a building with a floor area of approximately ^3.3m2 , a heat exchanger is used for each 1°C temperature difference between indoor air and outdoor air.
A device with a capacity of 10W/hour or more is required. When this heat exchanger is put into practical use, the capacity is preferably 15
~60W/hour is good.

The heat exchanger is preferably made of steel and is hot-dip galvanized or sprayed with zinc. Since the device according to the present invention is used unattended for a long period of time, it must be made of a highly corrosion-resistant material. Further, if the temperature of outdoor air becomes lower than the dew point temperature of indoor air, dew condensation will occur inside the heat exchanger, so it is preferable not to allow this to flow into the inside of the building. Specifically, it is preferable to attach a water drain pipe with a trap to the recirculation passage for air from the heat exchanger to the room.

F. Effects of the invention In this invention, the building has a sealed structure, which isolates the equipment housed in the building from corrosive gases, dust, salt, etc. that can cause failures and malfunctions of the equipment. This has the effect that not only the reliability of the equipment is improved, but also the life of the equipment is extended.

In addition, compared to the conventionally used ventilation heat removal method, it does not take in outside air, so it has the advantage of eliminating the need for an air filter to remove dust etc. at the outside air intake. have When this air filter is installed, it is necessary to replace the filter regardless of its type in order to remove clogging, and the cost is too large to ignore, but in the case of the building in which this invention was implemented, the air filter must be replaced. It has the advantage of not requiring a filter.

Furthermore, compared to cooling using a conventionally used cooler method, the operating cost is lower, and since a cooler, which has a high failure rate, is not used, the failure rate is also reduced.

[Brief explanation of the drawing]

FIG. 1 is a schematic longitudinal cross-sectional view showing an example of an embodiment of the closed equipment housing of this invention. 1... Building, 2... Ventilation fan, 3... Heat exchanger,
4...Eave, 5...Cover.

Claims (1)

[Scope of utility model registration request] In a containment building where equipment is housed in a substantially sealed room whose outer periphery is covered with a material with good heat insulation properties, the air in the room is forced to pass through a closed heat exchanger and circulated. This is a closed-type equipment storage building that exchanges heat with outdoor air and keeps the temperature difference between indoor air and outdoor air small.