JPH10102554A - Fire protecting water tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fire protecting water tank preventing the decay and odor of fire protecting water, easy to execute, and capable of reducing the manufacturing cost. SOLUTION: This fire protecting water tank 1 storing fire protecting water is a concrete molding constituted of one or two or more concrete molding elements, and a filling section 4 filled with a soil molding mainly made of a corroded object and/or the pumice containing an eluting silica component is provided in the fire protecting water tank 1. Two or more concrete molding elements preferably form the bottom section 101, middle sections 102, 103, and cover section 104 of the fire protecting water tank l, an air feed pipe 7 feeding air to the filling section 4 is provided, a float 6 is fitted to the filling section 4, and the filling section 4 is floated in the water.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire prevention water tank for storing fire extinguishing water, and more particularly to a fire prevention water tank for preventing decay and odor of fire extinguishing water, facilitating construction and reducing production costs.

[0002]

2. Description of the Related Art In recent years, it has become necessary to further secure fire extinguishing water in preparation for earthquakes and other disasters. During a disaster,
Not all places have fire trucks. It is necessary to secure fire water in narrow places where fire trucks cannot pass or in more places.

[0003] However, in the current construction work for burying a concrete fireproof water tank underground, there are disadvantages in that it takes time and effort to cast and cure concrete and the construction cost is high.

[0004] Conventionally, water that has been present in a fire prevention water tank as fire-extinguishing water stores rainwater and the like and is left until used, so that the fire-extinguishing water rots, emits odor, and generates blisters. There were drawbacks.

Further, there is a problem in terms of cost in treating the water in the fire prevention water tank with a chemical.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a fire prevention water tank which prevents rot and odor of fire-extinguishing water, is easy to construct, and helps to reduce the production cost.

[0007]

Means for Solving the Problems A fire prevention water tank according to the present invention for solving the above-mentioned problems is a fire-resistant water tank for storing fire-extinguishing water, wherein the fire-protection water tank is a concrete molded body comprising one or more concrete molding elements, In addition, the fire prevention water tank has a filling portion filled with a soil compact mainly composed of humus and / or a pumice containing an eluting silica component.

[0008] Preferably, two or more concrete forming elements constitute a bottom, a middle part and a lid part of the fire prevention water tank, and two or more concrete forming elements form a left part, a middle part and a right side part of the fire prevention water tank. That is.

[0009] Further, an air supply pipe for supplying air to the filling section is provided. The filling section is floated so that the filling section floats in water. The filling section is fixed below the fire prevention water tank. It is also a preferred embodiment to have a transfer pipe for transferring the water that has passed through the pipe upward, and to provide a stirrer above the transfer pipe for stirring the water that has passed through the filling section into the entire fire prevention water tank.

[0010]

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

In FIG. 1, reference numeral 1 denotes a fire prevention water tank, and 2 denotes an introduction section for introducing fire extinguishing water 3 into the fire prevention water tank 1. The water introduced into the fire prevention water tank 1 of the present invention includes treated water obtained by treating rainwater, domestic wastewater, and the like. Reference numeral 4 denotes a filling section provided inside the fire protection water tank 1. Reference numeral 5 denotes a fire extinguishing water 3 discharge unit.

The filling part 4 is filled with a soil compact mainly composed of humus and / or a pumice containing an eluting silica component, and the fire extinguishing water 3 received from the introduction part 2 contains:
It comes into contact with components eluted from the filling section 4.

[0013] The humus-based soil compact used in the present invention is a pellet obtained by mixing a humus or a binder containing an eluting silica component, drying and molding the mixture. The pellets may contain other inorganic materials (for example, minerals such as magnesium and calcium), an elution limiter, and the like. When the dissolution inhibitor is contained, the time for the pellet to dissolve in water can be controlled, and the replenishment time can be controlled. The shape of the pellet may be any of a cylinder, a prism, a disk, and the like.

The pumice containing an eluting silica component used in the present invention is a clay mineral or a volcanic rock hill containing a silica component that can be eluted into water. In the present invention, the pumice may be used as it is, or may be crushed and used.

In addition to the above, the filling section 4 of the present invention is filled with a solidified filter material obtained by impregnating a humus soil powder, granules or humus eluate with a pumice powder containing an eluting silica component. Is also good.

From the filling portion 4 of the present invention, the silica component of the monomer is eluted, and the fire extinguishing water 3 which has come into contact with the eluate is given antibacterial properties. The provision of antibacterial property means that an effect of setting and promoting an environment capable of suppressing the propagation of various bacteria such as Escherichia coli has been provided. Therefore, the fire extinguishing water stored in the fire prevention water tank of the present invention is stored until it is used without decay or emitting odor.

The filling portion 4 may have any shape as long as the above-mentioned filling material can be easily eluted. Preferably, a net-like container made of a material having corrosion resistance such as synthetic fiber, stainless steel, FRP or the like is used. Can be

In the fire protection water tank 1 according to the present invention, the effluent from the filling part 4 diffuses into the fire protection water tank 1, but the eluate of the filling part 4 and the fire extinguishing water 3 are uniformly and quickly distributed in the fire protection water tank 1. It is more preferable to provide means for diffusing.

One of the above means is to supply air to the filling section. In the example of FIG. 1, an air supply pipe 7 for supplying air is provided below the filling section 4, and the air is supplied from a blower 8 (may be a compressor).
The air promotes the elution of the eluate and also creates a water flow in the fire prevention water tank 1, so that the diffusion is also promoted. It is preferable to attach a solar cell (not shown) to the lid of the fire prevention water tank 1 and use the power as the power of the blower 8, since fossil energy is not consumed.

Next, it is preferable to provide a float 6 in the filling section 4 in order to promote the elution and diffusion of the eluate. Float 6
As a result, the filling section 4 is in a state of floating in the water. Therefore, the filling portion 4 moves up and down with the change in the amount of water in the fire prevention water tank 1, and the eluate and the fire extinguishing water 3 are stirred. Also,
Since the filling portion 4 is always floating in the water, there is also an advantage that it can be easily replaced when replacing the soil compact mainly composed of humus.

FIG. 2 shows another example of the fire prevention water tank 1 of the present invention. Reference numeral 9 denotes a movable air lift that supports the filling section 4.
The air supplied from the blower 8 enters the air lift 9 via the air supply pipe 7, and is supplied below the filling unit 4 together with water entering from a hole 9 a located at the lower end of the air lift 9. The bottom plate of the filling section 4 has a structure having many holes through which air passes. By using such a device, the effect of promoting the elution and diffusion of the eluate can be obtained.

Further, as shown in FIG. 3, the fire prevention water tank 1 can use a fixed filling part. In FIG. 3, 11
Is a transfer pipe for transferring water passing through the filling section 4 upward. In the illustrated example, the transfer pipe 11 has a hole 11a near the lower end for taking in water, the filling part 4 is held above the hole 11a, and the upper end is a mixture of the eluate and the water taken in from the hole 11a. It has a trumpet-shaped open shape so that it can be easily diffused throughout the fire prevention water tank 1. When air is supplied from the air supply pipe 7, water enters through the hole 11a, and
Invade. The eluate in the filling section 4 is transferred upward through the transfer pipe 11 and diffused into the fire-resistant water tank 1. Further, by providing the stirrers 10a and 10b, the eluate in the filling section 4 is mixed with the fire extinguishing water 3 and stirred. It is preferable that the transfer pipe 11 has a detachable configuration for exchanging the filler.

Next, a method of manufacturing the fire prevention water tank 1 shown in FIGS. The fire prevention water tank of the present invention is manufactured by a concrete molded body in which concrete molded bodies each including one or more concrete molding elements are laminated. When the concrete molded body is formed of one concrete molding element, a concrete molded element that has been previously manufactured at a factory according to the design shape of the fire prevention water tank can be used. When the concrete molding is composed of two or more concrete molding elements, for example, each molding element can be manufactured in advance at a factory, and each molding element can be combined and installed on site.

Specifically, by combining the bottom part 101 shown in FIG. 4, the intermediate parts 102 and 103 and the lid part 104, one concrete molded body as shown in FIGS. 1 to 3 can be formed. The water tank of the completed concrete molded body can be used as one fire prevention water tank of the present invention, but a plurality of water tanks can be arranged side by side and connected, and in this case, a necessary volume can be easily secured. Can be.

As described above, constructing a fire prevention water tank of a required size by combining a plurality of concrete forming elements reduces the number of molds of the concrete forming elements, enables mass production, and contributes to reduction of manufacturing costs. In addition, compared with the conventional process, a standard product may be combined at the site, and a skilled worker is not required, and a uniform finish can be obtained. Therefore, labor costs can be reduced, and the number of days required for the construction can be reduced, so that the construction cost can be reduced as a whole.

In order to manufacture the buried type fire prevention water tank 1 using the above-mentioned concrete molding element, first, as shown in FIG. 5, a hole having a depth and a size that can be buried at the installation site where the fire prevention water tank is installed is provided. dig. Next, the seismic material 12 is provided on the bottom and / or side of the hole. Examples of the earthquake-resistant material 12 include seismic isolation rubber. Next, the bottom part 101 is mounted, an adhesive is applied to the upper surface, and the intermediate parts 102 and 103 are mounted. Repair the adhesive if necessary. FIG. 5 shows an example in which three water tanks of concrete moldings are juxtaposed. A water pipe 13 is used to connect the water tanks. A flexible joint can be used for the water pipe 13. The filling section may be provided in the first water tank, or may be provided in all the water tanks.

Next, the lid 104 is placed and fixed. The lid 104 may be provided with an opening as required, for example, for inspection, replenishment of the soil compact, and the like.

As shown in FIG. 6, the lid 104 may have a net structure that allows the rainwater R to penetrate. Numeral 14 denotes the permeated rainwater R. If the rainwater R penetrates directly from the lid 104 and is taken into the fire prevention water tank 1, for example, when a large amount of rain falls in the city, it is possible to prevent urban flooding that occurs when the drainage function of the city does not work sufficiently. Can be.

FIG. 7 shows another example of the installation state of the fire prevention water tank 1 of the present invention. The concrete forming element may be cylindrical in addition to the square type shown in FIGS.

Further, as shown in FIG. 8, the concrete forming elements can be arranged side by side like the left side portion 105, the middle portion 106, and the right side portion 107 of the fire prevention water tank. Such a combination of concrete forming elements has a large capacity.
One aquarium can be made and is preferred.

According to the present invention, a wide variety of sizes of tanks can be produced by combining concrete forming elements. In addition to being buried underground, it can be installed on the ground because there is no problem of odor. The fire prevention water tank of the present invention can secure a necessary amount of fire extinguishing water without considering the size of the installation place and the surrounding environment.

[0032]

Embodiments of the present invention will be described below. The present invention is not limited by such embodiments.

Example 1 A fireproof water tank 1 having the shape shown in FIG. 1 was obtained by laminating a square concrete molding element (manufactured by Haneda Hume Pipe Co., Ltd.) shown in FIG.
Was manufactured. Volume was 1m ^3. Rainwater was stored and used as fire extinguishing water. The filling part was filled with the following filler using a net-type filling device manufactured by Toyo Bioreactor Co., Ltd. Soil compacts: “TOY” manufactured by Toyo Bioreactor Co., Ltd.
OROZAI-PL "0.2m ³ pumice: Toyo bioreactor Co., Ltd." TOYORO
ZAI-SO "was left for 4 months in the season from spring to summer when 0.2 m ³ water is easily perishable and observed. As a result, the water in the fire prevention water tank was left without being used for four months, but the water in the fire prevention water tank did not decay and had no odor. No bubbling occurred in the fire tank, and no algae grew.

Comparative Example 1 For comparison, an experiment was conducted in the same manner as in Example 1 except that no filling portion was provided inside the fire-resistant water tank of the present invention, and other conditions were used. As a result, after 4 months, the water in the fire prevention water tank was rotten and had a bad smell.

[0035]

As described above, according to the present invention, it is possible to provide a fire prevention water tank which prevents rot and odor of fire extinguishing water, is easy to construct, and helps to reduce the production cost.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an example of a fire prevention water tank of the present invention.

FIG. 2 is a longitudinal sectional view showing another example of the fire prevention water tank of the present invention.

FIG. 3 is a longitudinal sectional view showing another example of the fire prevention water tank of the present invention.

FIG. 4 is an exploded perspective view showing an example of a concrete forming element.

FIG. 5 is a longitudinal sectional view showing an installation example of a fire prevention water tank of the present invention.

FIG. 6 is a cross-sectional view of a main part showing another example of the lid.

FIG. 7 is a cross-sectional view showing another installation example of the fire prevention water tank of the present invention.

FIG. 8 is a longitudinal sectional view showing another installation example of the fire prevention water tank of the present invention.

[Explanation of symbols]

 1: fire prevention water tank 2: introduction section 3: fire extinguishing water 4: filling section 5: discharge section 6: floating 7: air supply pipe 8: blower 9: air lift 9a: hole 10a, 10b: stirrer 11: transfer pipe 11a: hole 12 : Seismic material 13: Water pipe 14: Rain water 101: Bottom 102, 103: Middle part 104: Lid 105: Left side 106: Middle part 107: Right side

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI C02F 1/50 531 C02F 1/50 531C 540 540C

Claims (6)

[Claims] 1. A fire prevention water tank for storing fire-extinguishing water, wherein the fire prevention water tank is a concrete molded body composed of one or more concrete molding elements, and a soil molded body mainly composed of humus inside the fire prevention water tank and / or A fire prevention water tank having a filling portion filled with pumice containing an eluting silica component. 2. The fire protection water tank according to claim 1, wherein the two or more concrete forming elements constitute a bottom, an intermediate portion, and a lid of the fire protection water tank. 3. The fire protection tank according to claim 1, wherein the two or more concrete forming elements constitute a left side, a middle part and a right side of the fire prevention tank. 4. The fire prevention water tank according to claim 1, further comprising an air supply pipe for supplying air to the filling section. 5. The method according to claim 1, wherein said filling portion is floated, and said filling portion floats in water.
3. The fire prevention water tank according to 3 or 4. 6. A transfer tank for fixing the filling section below a fire protection water tank, and for transferring water passing through the filling section upward, the water passing through the filling section being provided above the transfer pipe. 3. A stirrer for stirring the whole is provided.
3. The fire prevention water tank according to 3 or 4.