JP3108869B2 - Non-power supply / drainage device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water supply / drainage device which can be used for all water supply operations such as fire extinguishing, draining, water supply, pumping, etc., and is particularly safe even in disasters, power outages, or places where fires are strictly prohibited. The present invention relates to a non-power supply / drainage device that can be easily used by anyone.

[0002]

2. Description of the Related Art Even a water supply device such as a fire extinguisher that uses a commercial power supply that normally exhibits sufficient functions cannot use the commercial power supply in the event of a disaster or power outage. could not. Therefore, a water supply device such as a fire extinguisher equipped with a generator, a motor, an engine and the like in preparation for a power failure has been devised.

[0003]

However, a water supply device such as a fire extinguisher equipped with a power generator can be used without any problem in the event of a mere power outage, but it may be used in places where flammable gas such as city gas or propane gas has leaked during a disaster. In places where fire is strictly prohibited, there was a risk of explosion due to sparks from generators and the like. Further, in the event of an emergency requiring an emergency, a fire extinguishing device that can be easily operated even by a person who is not familiar with fire extinguishing work has been demanded.

Therefore, the present invention provides a safe and safe water supply system for fire extinguishing, drainage, water supply, pumping, etc. even in the event of a disaster, power outage, or in a place where fire is strictly prohibited. An object of the present invention is to provide a power supply / drainage device.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, a non-power supply / drainage device according to the present invention comprises a gas cylinder containing compressed or liquefied carbon dioxide and a gas delivered from the gas cylinder through a pressure reducing valve. A gas pump that uses only high-pressure carbon dioxide as a power source and discharges water sucked by a suction hose provided on one side from a discharge hose provided on the other side,
A heat exchanger for exchanging heat by disposing a pipe through which high-pressure carbon dioxide gas sent from the gas cylinder to the gas pump passes in a vessel through which part or all of the water sucked by the gas pump flows. The heat exchanger is characterized by heating the high-pressure carbon dioxide cooled by being sent from the gas cylinder through a pressure reducing valve.

[0006] Further, a flow path of water to be sucked by a gas pump may be provided in parallel with a path including a pressure reducing valve and a pressure gauge through which high-pressure carbon dioxide gas sent from a gas cylinder passes.

[0007]

FIG. 1 shows a non-powered water supply / drainage device 1 according to the present invention. In this embodiment, an example in which the device is used as a fire extinguisher will be described. In the figure, 2 is a gas cylinder for storing liquefied carbon dioxide, 3 is a main valve for controlling opening and closing of the output of carbon dioxide from the gas cylinder 2, 4 is a pressure gauge for measuring the pressure of the carbon dioxide gas passing through the main valve 3, and 5 is a pressure gauge. A pressure reducing valve that adjusts the pressure of carbon dioxide gas to an appropriate value, 6 is a water storage tank storing water, 7 is a gas pump that operates using only pressure energy of high-pressure gas as a power source without using electricity, and 8 is a gas pump 7. A first suction hose for sucking water in the water storage tank 6, a discharge hose 9 for discharging water to the outside by the gas pump 7, a nozzle 10 provided at a tip of the discharge hose 9, and a gas pump 11 A heat exchanger that makes the pipe body 12 through which the high-pressure carbon dioxide gas supplied to the pipe 7 passes through meander in the container 13 and circulates the water in the water storage tank 6 through the second suction hose 14 in the container 13. Water in the container 13 of the exchanger 11 Container 13 so as to suction the gas pump 7 and the first suction hose 8
Is a connecting hose for connecting. The water supply source of the fire extinguisher may be a water tank, a fire prevention water tank, a pool, a pond, a river, or the like, in addition to the water storage tank 6.

In this embodiment, the gas pump 7 that operates using only high-pressure gas as a power source uses high-pressure carbon dioxide gas from the gas cylinder 2 and has a known structure and is not particularly shown. However, a brief description is given below. The high-pressure gas supplied to the gas pump 7 drives a rotating body having blades and the like to operate a switching valve that switches a high-pressure gas discharge location at regular intervals. The discharge location of this high-pressure gas is two spaces partitioned by a partition through which a movable shaft is inserted. Both ends of the shaft are movable to both sides while opposing the partition and partitioning each space. A simple diaphragm is provided. On the back side of each of the diaphragms, a flow path of water or the like sandwiched between two check valves that can flow water in only one direction is formed in parallel.

When the high-pressure gas is discharged into one space by the switching valve and one of the diaphragms in the space moves outward, the other diaphragm connected to the one diaphragm via the shaft is moved to the inner side. Pulled by As a result, the volume of the water flow path on the back side of the other diaphragm is increased and becomes negative pressure, so that the water is sucked into the inside while opening the check valve on the suction side. Next, when the discharge location of the high-pressure gas is switched from one space to the other space by the switching valve, the other diaphragm moves outward and compresses the volume of the outer water flow path. Then, the check valve on the discharge side is opened to push out the water in the flow path.
At the same time, one of the diaphragms is pulled inward, thereby sucking water inside while opening the check valve on the suction side. When the high-pressure gas is discharged into one space surrounded by the partition and the diaphragm, the exhaust valve provided in the other space is opened to discharge the high-pressure gas to the outside. As a result, the gas pump 7 can discharge water while continuously sucking water as long as high-pressure gas is supplied. 1 in the figure
Reference numeral 6 denotes an exhaust unit for carbon dioxide gas discharged after driving the gas pump 7.

The carbon dioxide gas used as a power source of the gas pump 7 in the non-powered water supply / drainage device 1 of the present invention is safe, inexpensive and not a dangerous substance as used as a fire extinguishing agent because it does not have combustion supporting properties and hinders combustion. It is very suitable for use as a power source for the gas pump 7 because it can be used by anyone, even if it is not a qualified person. However, on the other hand, when the temperature of the carbon dioxide gas decreases due to the expansion of the compressed carbon dioxide gas, the pressure in the gas pump decreases and the pressure of the water discharged from the pump decreases, or the temperature of the carbon dioxide gas further decreases. Continue to form solid dry ice. If this dry ice accumulates in the gas pump 7 or in the pipe, which is a flow path for carbon dioxide gas, the function of the pump may be stopped.

In order to prevent such a situation, the non-power supply / drainage device 1 according to the present invention employs a heat exchanger 11 for preventing the temperature of carbon dioxide from becoming extremely low and from being converted into dry ice.
Is arranged. That is, the main plug 3 is
The high-pressure carbon dioxide expanded and cooled by passing through the pressure reducing valve 5 passes through the meandering pipe 12 provided in the vessel 13 of the heat exchanger 11, while passing through the vessel 13 of the heat exchanger 11. Inside, the water in the water storage tank 6 constantly flows while being in contact with the meandering pipe 12 from the second suction hose 14 to the connecting hose 15, so that the low-temperature high-pressure carbon dioxide gas in the pipe 12 is removed. Since the water flowing through the container 13 is heated through the tube 12, there is no danger of extremely low temperature or dry ice. In addition, as the water to be circulated in the container 13 of the heat exchanger 11, it is also possible to take out the water from the discharge hose 9 of the gas pump 7. Since the water cannot be discharged through the storage tank 6, wasteful use of energy such as returning to the water storage tank 6 occurs.

Further, although the surface temperature of the tube 12 through which the low-temperature and high-pressure carbon dioxide gas flows is below freezing, the water in contact with the tube 12 is always flowing (the flowing water does not freeze). Therefore, in order to continuously drive the gas pump 7 for a long time, the heat exchanger 11 of the present invention operates effectively. In the embodiment described above, a part of the water sucked by the gas pump 7 is introduced into the heat exchanger 11 by the second suction hose 14, but the invention is not limited to this. The heat exchanger 11 may be provided in the middle part of the above, and all the water sucked by the gas pump 7 may be passed through the heat exchanger 11.

Although heat exchange by air instead of the heat exchanger 11 using water is also possible, in that case, a radiation fin having a large surface area according to the ratio of the heat capacity of water to air is required. Therefore, the non-power supply / drainage device 1 becomes large and requires a large cost. The non-power supply / drainage device 1 of the present invention can be miniaturized, so that it can be easily installed in a building as a fire-extinguishing facility in a space-saving manner, and can be installed on a trolley or the like to be a movable fire-extinguishing device. Can also. Furthermore, when a water storage tank is also mounted on the bogie, a fire can be extinguished even in a narrow alley at the time of a disaster, with a small turn to enter the area, and even in a water outage state or a place without a water source.

Although not particularly shown, the flow path of the water sucked by the gas pump 7 is not only in the heat exchanger 11 but also in the heat exchanger 11.
By heating in parallel to the path of low-temperature and high-pressure carbon dioxide gas including a pressure control member such as a pressure reducing valve and a pressure gauge, the parts other than the gas pump 7 can be prevented from becoming dry ice or freezing carbon dioxide gas. Thus, the pressure control members such as the pressure reducing valve and the pressure gauge can function smoothly without any trouble.

In the above-described embodiment, a fire extinguisher has been described as an example of a non-power supply / drainage device. Water supply from the tank to the hydrant and the receiving tank,
Also, it can be effectively used for draining water collected in gas pipes and pits at the time of an earthquake, supplying drinking water at the time of a disaster, and the like. All of these are when electricity supply is cut off, generators,
Since there is a risk of explosion due to sparks from a motor, an engine, or the like, the non-power supply / drainage device 1 of the present invention that operates using only the pressure energy of high-pressure gas as a power source without using electricity is extremely safe and useful. It is.

[0016]

As described in detail above, a gas pump having only a high-pressure carbon dioxide gas delivered from a gas cylinder storing compressed or liquefied carbon dioxide through a pressure reducing valve as a power source is used for one of the gas pumps. The non-power supply / drainage device of the present invention, in which water sucked by the suction hose provided is discharged from the discharge hose provided on the other side, uses only carbon dioxide gas, which does not have combustion supportability and hinders combustion, as a power source, so that electricity is supplied. Safe and easy for anyone to extinguish, drain, supply and pump water even in disasters, power outages, or places where fires are strictly prohibited, in which there is a risk of explosion due to sparks from generators, motors, engines, etc. Etc. can be performed. Further, the high-pressure carbon dioxide gas, which is a power source of the gas pump and is cooled by being sent from the gas cylinder to the gas pump through the pressure reducing valve, is heated by the water sucked by the pump in the heat exchanger, and thus the carbon dioxide gas is cooled. Extremely low temperature reduces the pressure in the gas pump and reduces the water pressure to be discharged, and there is no danger that carbon dioxide gas becomes dry ice and accumulates in the gas pump to stop the function of the pump. It can be driven continuously for a long time.

When a flow path of water to be sucked by a gas pump is provided in parallel with a path including a pressure reducing valve and a pressure gauge through which high-pressure carbon dioxide gas sent from a gas cylinder passes, parts other than the gas pump are also provided. It is possible to prevent the formation of dry ice or freezing of carbon dioxide gas and to allow the pressure control members such as the pressure reducing valve and the pressure gauge to function smoothly without any trouble.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a non-power supply / drainage device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Non-power supply / drainage device 2 Gas cylinder 3 Main plug 4 Pressure gauge 5 Pressure reducing valve 6 Water tank 7 Gas pump 8 First suction hose 9 Discharge hose 10 Nozzle 11 Heat exchanger 12 Tube 13 Container 14 Second suction hose 15 Connection hose 16 Exhaust part

Claims (2)

(57) [Claims] 1. A gas cylinder containing compressed or liquefied carbon dioxide, and water sucked by a suction hose provided on one side, using only high-pressure carbon dioxide gas sent from the gas cylinder through a pressure reducing valve as a power source. A gas pump discharged from a discharge hose disposed on the other side, and a pipe through which a part or all of water sucked by the gas pump flows through a pipe through which high-pressure carbon dioxide gas sent from the gas cylinder to the gas pump flows. A heat exchanger which heats the cooled high-pressure carbon dioxide gas by being sent out from the gas cylinder through a pressure reducing valve. . 2. A path including a pressure reducing valve and a pressure gauge through which high-pressure carbon dioxide gas sent from a gas cylinder passes, is provided with a flow path of water sucked by a gas pump. No power supply and drainage device as described.