JP2002070095A - Water supply equipment for hospital - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide water supply equipment for a hospital, which can reduce its running costs, in the case where sterilized water is supplied in the hospital. SOLUTION: The water supply equipment for the hospital includes a water supply pipe 12, a sterilizing chamber 14 for introducing water from the water supply pipe 12 and heat-sterilizing the water by a heating means 18, to thereby discharge sterilized water, and a sterilized water supply pipe for supplying the sterilized water discharged from the sterilizing chamber 14. According to the equipment, the heating means 18 is comprised of a heat storage tank 22 and an overheated steam supply pipe 20. The heat storage tank 22 includes a heat storage portion 36 charged with a solid heat storage material 42 and a liquid heat storage material 44, a heater 38 for heating the heat storage portion 36, and a heat-transfer pipe 24 arranged in the heat storage portion 36 in a manner passing the interior of the same, for overheating water supplied into the heat storage portion 36 to discharge overheated steam. The overheated steam supply pipe 20 is connected to the heat-transfer pipe 24, and arranges such that the steam overheated and generated at the heat storage portion 36 passes the interior of the sterilizing chamber 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water supply device for supplying water used for hand washing before and after an operation in a hospital.

[0002]

2. Description of the Related Art In hospitals, disinfected water is used for washing hands and medical instruments before and after surgery. In order to supply such disinfected water, a water supply device having a structure as shown in FIG. 9 has been conventionally known. The water supply device 1 is provided such that a disinfecting tank 3 is connected to a water supply pipe 2 for supplying tap water, and disinfecting water heated and disinfected in the disinfecting tank 3 is supplied to a user through a disinfecting water supply pipe 4. ing.

The water flowing through the water supply pipe 2 is supplied to a disinfection tank 3
Introduced within. An electric heater 5 is provided in the disinfecting tank 3, and when the electric heater 5 is energized, the water in the disinfecting tank 3 is heated and disinfected. The water that has been heated and disinfected flows from the disinfection tank 3 through the disinfection water supply pipe 4 to the downstream end where the faucet 6 and the like are provided. As a disinfection method in the disinfection tank 3, there is a method using an ultraviolet lamp in addition to using the electric heater 5.

[0004]

In a water supply device in a hospital, an emergency operation may be performed.
It must be in a state where the disinfecting water used for washing etc. can always be supplied. In other words, in a water supply system for hospitals that uses an electric heater or an ultraviolet lamp to sterilize and supply water,
It is necessary to keep the electric heater or ultraviolet lamp energized at all times. As described above, the conventional water supply apparatus for a hospital has a problem that running costs such as electricity costs are increased due to constant energization of an electric heater and an ultraviolet lamp.

Further, in the conventional water supply device, the water introduced into the disinfection tank can be disinfected without fail, but the inner wall surface of the water supply pipe through which the disinfected water flows is disinfected with an electric heater or an ultraviolet lamp. Can not do. In this case, even if an attempt is made to supply the sterilized water, the sterilized water may be re-contaminated by bacteria or the like attached to the inner wall of the water supply pipe. Therefore, it is necessary to stop the supply of water at regular intervals and to flow the disinfectant into the water supply pipe, and there is a problem that it takes time to pour the disinfectant and wash the disinfectant thereafter.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a hospital water supply apparatus capable of reducing running costs when supplying disinfecting water in a hospital. It is in.

[0007]

That is, according to the hospital water supply apparatus of the present invention, a water supply pipe and water connected to the water supply pipe and introduced from the water supply pipe and heated by the heating means. Disinfecting, in a hospital water supply device comprising a disinfecting tank for discharging the disinfecting water after disinfection, and a disinfecting water supply pipe connected to the disinfecting tank for supplying the disinfecting water discharged from the disinfecting tank, The heating means includes a heat storage unit filled with a solid heat storage material and a liquid heat storage material, a heater for heating the heat storage unit, and a heater that is provided so as to pass through the heat storage unit and superheats water supplied to the heat storage unit. A heat storage tank provided with a heat transfer tube that discharges superheated steam, and is disposed so as to be connected to the heat transfer tube, so that superheated steam generated by being superheated in the heat storage unit passes through the disinfection tank. Superheated steam supply pipe and It is characterized by comprising. By adopting this configuration, it is possible to heat the water introduced into the disinfection tank using the heat stored by using inexpensive midnight power. For this reason, the running cost of the water supply device can be reduced.

One end is connected to the heat transfer tube or the superheated steam supply pipe, and the other end is connected to a disinfecting water supply pipe. In the disinfecting water supply pipe, superheated steam generated by being superheated by the heat storage unit is provided. If the second superheated steam supply pipe is provided so as to be able to supply water, the superheated steam generated in the heat storage unit is directly supplied to the disinfecting water supply pipe for disinfecting the disinfecting water supply pipe. Can be introduced.
For this reason, it is not necessary to flow a disinfecting solution or the like to perform disinfection, thereby saving labor.

Further, if a cooler for cooling water discharged from the disinfection tank is provided, even if the amount of heating by the disinfection tank is too large and the temperature is too high during use, cooling is performed. To a temperature suitable for use.

[0010] A third superheated steam supply pipe connected to the heat transfer pipe or the superheated steam supply pipe, and a cooler that cools and condenses the superheated steam passing through the third superheated steam supply pipe. And a second water supply pipe connected between the cooler and the disinfecting water supply pipe so as to supply the superheated steam cooled by the cooler to the disinfecting water supply pipe. The temperature after disinfection can be lowered by mixing cooling water, but a condensed superheated steam can be used as the cooling water. That is, since the water can be cooled using the superheated steam in a sterilized state from the beginning, contamination of the disinfected water can be prevented.

The solid heat storage material in the heat storage section is composed of solid heat storage materials having different particle diameters, and a small particle size solid heat storage material enters the gap between the large particle diameter solid heat storage materials in the heat storage section. It is characterized in that the liquid heat storage material is filled in the gaps between the solid heat storage materials, and the filling density of the solid heat storage material and the liquid heat storage material per unit area in the heat storage unit can be increased. it can. Therefore, the amount of heat stored in the heat storage unit can be increased, and more heat can be stored with as little power as possible to further reduce running costs.

Further, if the solid heat storage material in the heat storage section is one or two or more kinds of particles selected from magnesia, magnetite, silica and alumina, the heat storage effect of calorie can be enhanced, The running cost can be further reduced by storing a large amount of heat with a small amount of electric power. Furthermore, the liquid heat storage material in the heat storage unit can also enhance the heat storage effect of the amount of heat by being a nitrate,
The running cost can be further reduced by storing a large amount of heat with a small amount of electric power.

According to the eighth aspect of the present invention, there is provided a hospital water supply apparatus, wherein a heat storage section filled with a solid heat storage material and a liquid heat storage material, a heater for heating the heat storage section, and a heat storage section passing through the heat storage section. A heat storage tank provided with a heat transfer tube that is disposed in the heat storage unit and superheats water supplied to the heat storage unit and discharges superheated steam, a superheated steam supply pipe having one end connected to the heat transfer tube, It is characterized by comprising a cooler connected to the other end of the superheated steam supply pipe for cooling and condensing the superheated steam, and a water supply pipe connected to the cooler and supplying the condensed superheated steam. . By adopting this configuration, the superheated steam, which originally exceeds 500 degrees and is sterilized, is condensed and used for water for cleaning or the like, so that equipment such as a disinfection tank is not required. In addition, superheated steam is generated by using heat stored using inexpensive midnight power, so that almost no power is used during the daytime when water supplied is directly used. Therefore, the running cost of the apparatus can be reduced.

[0014] In the water supply apparatus for hospitals according to the present invention, the solid heat storage material in the heat storage section is composed of solid heat storage materials having different particle diameters, and the solid heat storage material having a large particle diameter is stored in the heat storage section. The solid heat storage material having a small particle size is formed so as to enter the gap, and the liquid heat storage material is filled in the gap between the solid heat storage materials. The packing density with the liquid heat storage material can be increased. Therefore, the amount of heat stored in the heat storage unit can be increased, and more heat can be stored with as little power as possible to further reduce running costs.

Further, in the hospital water supply apparatus according to claim 8, the solid heat storage material in the heat storage unit is made of magnesia,
If it is one or two or more kinds of particles selected from magnetite, silica and alumina, it is possible to enhance the heat storage effect of the amount of heat, further reduce the running cost by storing more heat with less power. Can be planned. Furthermore, in the hospital water supply device according to claim 8, the liquid heat storage material in the heat storage unit can be a nitrate, so that the heat storage effect of the amount of heat can be enhanced, and a large amount of heat can be stored with a small amount of electric power for running. The cost can be further reduced.

According to a twelfth aspect of the present invention, there is provided a hospital water supply apparatus including a water supply pipe and a water heater for heating water in the water supply pipe. An outer cylinder that covers the periphery of the tube with a predetermined space, a heat storage unit filled with a solid heat storage material and a liquid heat storage material, a heater that heats the heat storage unit, and a heat storage unit that passes through the heat storage unit. And a heat storage tank provided with a heat transfer tube that superheats water supplied into the heat storage unit and discharges superheated steam, and a superheated steam that is connected to the heat transfer tube and is generated by being superheated in the heat storage unit. And a superheated steam supply pipe disposed so as to supply to a space formed between the outer cylinder and the water supply pipe. By adopting this configuration, it is possible to reduce the overall size without using a large-sized hot water supply system that heats with gas, and furthermore, it is possible to reduce the heat of the heat storage tank that stores heat using inexpensive midnight power. , The running cost can be reduced.

In the water supply apparatus for a hospital according to claim 12, one end of the water supply pipe is connected to the heat transfer pipe or the superheated steam supply pipe, and the other end of the water supply pipe is downstream of a portion where the water heater is provided. And a second superheated steam that is provided so as to be able to supply superheated steam generated by being superheated in the heat storage unit into a water supply pipe downstream of a portion where the hot water device is provided. If the supply pipe is provided, the superheated steam generated in the heat storage unit can be directly introduced into the disinfecting water supply pipe for disinfecting the water supply pipe. Therefore, it is not necessary to disinfect the inside of the water supply pipe by flowing a disinfecting solution or the like, and it is possible to save labor.

According to a twelfth aspect of the present invention, the solid heat storage material in the heat storage unit is formed of solid heat storage materials having different particle sizes, and the solid heat storage material having a large particle size is stored in the heat storage unit. The solid heat storage material having a small particle diameter is formed so as to enter the gap, and the liquid heat storage material is filled in the gap between the solid heat storage materials. The packing density with the liquid heat storage material can be increased. For this reason, the amount of heat stored in the heat storage unit can be increased, and more heat can be stored with as little power as possible to further reduce running costs.

[0019] In the water supply apparatus for a hospital according to claim 12, the solid heat storage material in the heat storage section is one or more particles selected from magnesia, mag- ite, silica and alumina. If this is the case, the heat storage effect of the amount of heat can be enhanced, and more heat can be stored with less electric power to further reduce running costs.
Further, in the hospital water supply apparatus according to claim 12, since the liquid heat storage material in the heat storage unit is a nitrate, the heat storage effect of the amount of heat can be enhanced, and a large amount of heat can be stored with a small amount of power for running. The cost can be further reduced.

[0020]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. (First Embodiment) First, a first embodiment of a hospital water supply apparatus having a disinfection tank in a water supply pipe will be described with reference to FIG. The hospital water supply device 10 according to the present embodiment includes a water supply pipe 12 for flowing tap water and the like, a disinfection tank 14 connected to a downstream portion of the water supply pipe 12, and a faucet 15 from the disinfection tank 14.
A disinfecting water supply pipe 16 for flowing disinfected water (hereinafter, also simply referred to as disinfecting water) to a downstream side provided with a heating means 18 for heating water in the disinfecting tank 14. I have.

The heating means 18 will be described in more detail. The heating means 18 is provided in the disinfection tank 14, and has a superheated steam supply pipe 20 through which superheated steam flows, and a heat storage tank 22 for feeding superheated steam to the superheated steam supply pipe 20. A water supply tank (not shown) is connected to the heat storage tank, and water in the water supply tank is overheated (su) in the heat storage tank 22.
perheating) and supply superheated steam as superheated steam 20
Supplying to pipes. The superheated steam that has passed through the superheated steam supply pipe 20 and exchanged heat with the water in the disinfection tank 14 is condensed and returned to the water supply tank. Then, the water returned into the water supply tank is heated again and used. It is not necessary to connect a water supply tank to the heat storage tank 22, and a water pipe may be connected so as to directly supply tap water.

The superheated steam supply pipe 20 provided in the disinfection tank 14 for heating water is a metal pipe through which the superheated steam generated in the heat storage tank 22 flows. The metal pipe is immersed in the water in the disinfecting tank 14, and the heat of the superheated steam is transmitted to the water through the metal pipe to disinfect the disinfecting tank 1.
The water in 4 is heated. The superheated steam supply pipe 20 is preferably wound in a coil shape or formed in a corrugated shape in order to increase the contact area with water.

On the other hand, a heat transfer tube 24 is provided in the heat storage tank 22, and a supply pipe 25 from a water supply tank is connected to one end 24a of the heat transfer tube 24. A pump 26 is attached to the supply pipe 25, and the pump 26 supplies water in the water supply tank. And the heat transfer tube 24
From the other end 24b, superheated steam generated by overheating of water by the heat storage material in the heat storage tank 22 is taken out. The other end 24 b of the heat transfer tube 24 is connected to a pipe 27 that goes to the superheated steam supply pipe 20. Piping 27
Is connected to one end 20a of the superheated steam supply pipe 20, and supplies superheated steam to the superheated steam supply pipe 20. Note that such a pipe 27 is connected to the superheated steam supply pipe 20.
And may be formed separately or integrally.

The superheated steam supply pipe 20 in the disinfection tank 14
The other end 20b is connected to a pipe 28 to a water supply tank. This pipe 28 returns superheated steam condensed by heat exchange in the disinfection tank 14 to the water supply tank. In this way, the water in the water supply tank circulates through the heat storage tank 22 and the superheated steam supply pipe 20. In addition, as water stored in the water supply tank to be superheated in the heat storage tank 22, ions such as magnesium and calcium are ion-exchanged with ions from the viewpoint of preventing the scale of the heat transfer pipe 24 and the superheated steam supply pipe 20. It is preferable to use the removed treated water.

The water supply apparatus has a disinfecting water supply pipe 16.
A superheated steam supply pipe 19 through which superheated steam is allowed to flow directly into the disinfecting water supply pipe 16 is disposed in order to disinfect the inner wall surface and the like. The superheated steam supply pipe 19 is connected to the heat storage tank 22.
The superheated steam flowing toward the superheated steam supply pipe 20 is distributed.
The superheated steam supply pipe 19 is provided with a control valve 30 which is normally closed so that the superheated steam does not flow directly into the disinfecting water supply pipe 16 and is opened only when disinfecting the disinfecting water supply pipe 16. It is controlled so that When the superheated steam is directly introduced into the disinfecting water supply pipe 16, the superheated steam also blows out from the faucet 15, so that it is necessary to be careful when there is no person using water in the present water supply device. .

It is preferable that the water supply device is provided with a cooler for lowering the temperature of the disinfecting water flowing through the disinfecting water supply pipe 16. In the present embodiment, the disinfecting tank 14
A bypass pipe 32 connected so as to supply water without passing through the disinfecting tank is provided from the water supply pipe 12 before introduction to the disinfecting water supply pipe after passing through the disinfecting tank 14, whereby the disinfecting water is supplied. I'm trying to cool. That is, the water passing through the bypass pipe 32 mixes with the disinfecting water to lower the temperature of the disinfecting water. When the sterilized water whose temperature has dropped is discharged from the faucet 15, the temperature becomes suitable for human use.

Hereinafter, the structure of the heat storage tank will be described. FIG. 2 shows a detailed structure of the heat storage tank 22 used in the saturated steam generator shown in FIG. The heat storage tank 22 shown in FIG. 2 includes an electric heater 3 for heating the heat storage material in a heat storage portion 36 filled with a heat storage material formed by mixing a solid heat storage material and a liquid heat storage material.
8 and a heat transfer tube 24 to which water is supplied by a pump 26. Further, the heat storage section 36 has its outer peripheral surface covered with a heat insulating material 40 to prevent heat radiation from the heat storage section 36. The heat storage material filled in the heat storage unit 36 is composed of a solid heat storage material and a liquid heat storage material having different particle diameters, and is filled so that the small-diameter solid heat storage material enters the gaps between the large-diameter solid heat storage materials. ing. Further, a gap between the solid heat storage material having a large particle diameter and the solid heat storage material having a small particle diameter is filled with a liquid heat storage material.

FIG. 3 shows a state where the heat storage material is filled in the heat storage section. FIG. 3A shows a large-diameter solid heat storage material 42.
a and the solid heat storage material 42b having a small particle diameter are in a state where the solid heat storage material 42 and the liquid heat storage material 44 having two kinds of particle diameters are filled, and the small heat storage material 42a having a large particle diameter is filled in the gap. A solid heat storage material 42b having a diameter enters and is filled, and a gap between the solid heat storage materials 42 is filled with a liquid heat storage material 44.

FIG. 3B shows a state of the heat storage section filled with a solid heat storage material and a liquid heat storage material having three kinds of particle diameters. The solid heat storage material is composed of a large-diameter solid heat storage material 42a, a small-diameter solid heat storage material 42b, and a medium-diameter solid heat storage material 42c having an intermediate particle size between the solid heat storage materials. The gap between the heat storage materials 42a is filled with a medium-sized solid heat storage material 42c, and the gap between the large-sized solid heat storage material 42a and the medium-sized solid heat storage material 42c is filled with small-sized solid heat storage material 42c. The heat storage material 42b is filled so as to enter.
Further, a gap between the filled solid heat storage materials 42 is filled with a liquid heat storage material 44. Thus, FIG.
As shown in (b), the gaps between the large-diameter solid heat storage materials 42a are filled so that the smaller-diameter solid heat storage materials 42b and 42c enter the gaps. In the heat storage section 36 filled with the material 44, the packing density of the solid heat storage material 42 and the liquid heat storage material 44 is compared with the packing density of the solid heat storage material 42 and the liquid heat storage material 44 having one kind of particle diameter. The heat storage amount and the heat conduction to the heat transfer tube 24 can be improved.

A specific example of the heat storage tank will be described. FIG.
As the solid heat storage material 42 shown in (a) and (b), one or more kinds of particles selected from magnesia, magnetite, silica, and alumina can be suitably used. Can be suitably used. Nitrate is solid at room temperature, but melts above 142 ° C. to become a liquid. Here, a large particle size magnesia having a particle size of 7 to 10 mm as the solid heat storage material 42 and a particle size of 1 mm
Magnesia 1800k consisting of the following small particle size magnesia
g and 370 kg of a nitrate as the liquid heat storage material 78 were filled to form the heat storage section 36. The composition of the heat storage material forming the heat storage unit 36 is 55% of large-diameter magnesia, 25% of small-diameter magnesia, and 20% of nitrate.

The heat storage section 36 is provided with an electric heater 38 of 27 kW and a heat transfer tube 24 so that the heat transfer area is 3.4 m ^2.
And the heat storage part 36 was surrounded by the heat insulating material 40 to form the heat storage tank 22. The heat insulating material 44 has a thickness of 5 microporous structure whose main component is silicon oxide and titanium oxide.
A heat insulating material of 0 mm was used. The formed heat storage tank 22 has a width of 8
The size was 30 mm, the width was 1200 mm, the height was 1900 mm, and the weight was 3000 kg.

Next, after the electric heater of the formed heat storage tank 36 is energized for about 10 hours at night, water is continuously supplied to the inlet of the heat transfer tube 24 by the pump 26 so that the outlet pressure of the heat transfer tube 24 becomes 0.5 MPa. Then, the temperature of the steam discharged from the outlet of the heat transfer tube 24 and the temperature of the heat storage material were examined. FIG. 4 shows the results. In FIG. 4, curve A of the heat storage material temperature is a temperature curve of the heat storage material near the inlet of the heat transfer tube, and curve B is a heat transfer material 62.
The heat storage material temperature curve near the middle of the curve C and the curve C
Respectively shows the heat storage material temperature curves near the outlet of the above. The generated steam temperature is the temperature of the steam discharged from the outlet of the heat transfer tube 24. Further, the amount of heat output was calculated from the steam temperature discharged from the outlet of the heat transfer tube 24 and the amount of water supplied to the heat transfer tube, and the change over time in the amount of heat output is also shown in FIG.

As is apparent from FIG. 4, the heat storage material in the heat storage tank 22 is heated to a high temperature of 500 ° C. by heating the electric heater 38, and the steam discharged from the heat transfer tube 24 is superheated steam of 500 ° C. is there. In addition, superheated steam at 500 ° C. can be continuously discharged for about 4 hours. Even if the temperature of the discharged superheated steam drops to 500 ° C. or lower, the superheated steam can still be discharged, and the superheated steam can be continuously discharged for 8 hours or more.
As a result, the heat output was stable until about 7 hours 30 minutes from the start of heat output.

This means that the temperature of the heat storage material also decreases near the inlet of the heat transfer tube 24 with the start of heat output, and begins to decrease near the center of the heat transfer tube 24 two and a half hours after the start of heat output. It is also understood from the fact that the vicinity of the outlet of the heat transfer tube 24 starts to decrease after a lapse of time. In other words, since the location where the heat stored in the heat storage unit 36 is taken out is sequentially moved from the heat storage material near the inlet of the heat transfer tube 24 to the heat storage material near the outlet with the heat output, the heat is discharged from the heat transfer tube 24. The temperature of the superheated steam and the amount of heat output can be stabilized. As described above, since the heat storage material can be heated by the low-cost late-night power, clean and inexpensive superheated steam can be obtained. And
In the water supply device, since heating and disinfection is performed using superheated steam using heat that has been stored in advance using such inexpensive midnight power, there is no need to constantly supply electricity for disinfection, and running costs are reduced. Can be reduced.

(Second Embodiment) Hereinafter, a second embodiment of the water supply device of the present invention will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof may be omitted. In this embodiment, the disinfecting water that has been disinfected from the disinfecting tank 14 is branched into two systems and discharged. In other words, the disinfecting tank 14 is connected with two pipes for discharging the disinfecting water: a normal disinfecting water supply pipe 16 and a cooling pipe 48 to a cooler 46 for cooling the disinfecting water. I have. Pumps 49 and 50 are connected to the disinfecting water supply pipe 16 and the cooling pipe 48, respectively.

The structure of the cooler 46 will be described. The cooler 46 includes an introduction pipe 52 for introducing cooling water, a tank 55 for storing the introduced water, a drain pipe 54 for draining the introduced water, and a cooling pipe 48 from the disinfecting tank 14.
And a cooling pipe 56 arranged so as to pass through the inside of the tank 55. The cooling pipe 56 that has passed through the cooler 46 is connected to the disinfecting water supply pipe 1 by a water supply pipe 59.
6 is connected. Here, the introduction pipe 52 is provided branched from the water supply pipe 12 so that water before disinfection can be introduced from the water supply pipe 12 before being introduced into the disinfection tank 14. Further, the cooling pipe 56 may be formed in a coil shape or a corrugated shape in order to increase a contact area with the introduced water.

The operation of the water supply device will be described.
First, tap water before disinfection is supplied from the water supply pipe 12 to the disinfection tank 14.
Sent inside. The water in the disinfecting tank is heated by exchanging heat with the heated steam passing through the superheated steam supply pipe 20, and is heated and disinfected. The heat-disinfected disinfecting water is discharged from the disinfecting tank 14 and supplied to the user through the disinfecting water supply pipe 16.

On the other hand, a part of the disinfecting water heated and disinfected in the disinfecting tank 14 is discharged to a cooling pipe 48 and supplied to a cooling pipe 56 in the cooler 46. Unheated water is supplied into the cooler 56 from the water supply pipe 12 via the introduction pipe 52, and exchanges heat with the disinfecting water passing through the cooling pipe 56. The heat-exchanged water rises in temperature and is drained from the drain pipe 54. The disinfecting water cooled by passing through the cooler 46 is mixed with the disinfecting water in the disinfecting water supply pipe 16 through the water supply pipe 59. By using such a water supply device, when it is desired to supply the disinfecting water heated and disinfected in the disinfecting tank 14 to a high temperature to a user or the like, the disinfecting water cooled through the cooler is mixed. Disinfecting water can be supplied to lower the temperature and not to burn the user.

(Third Embodiment) A hospital water supply apparatus according to a third embodiment of the present invention will be described with reference to FIG.
Note that the same components as those in the above-described first and second embodiments are denoted by the same reference numerals, and description thereof may be omitted. The water supply apparatus of the present embodiment is the same as the second embodiment in that the temperature of the disinfecting water finally supplied to the user is lowered, but what is mixed in the disinfecting water supply pipe is the second. Unlike the third embodiment, the disinfection water disinfected via the disinfection tank 14 is mixed with superheated steam cooled by passing through the cooler 46.

The superheated steam for cooling is taken from the superheated steam supply pipe 20 that has passed through the disinfection tank 14. That is, the three-way valve 58 is provided on the other end 20 b side of the superheated steam supply pipe 20, and the cooling superheated steam pipe 60 from the three-way valve 58 to the cooler 46 is provided. As described above, by taking the superheated steam to be cooled from the superheated steam supply pipe 20 after passing through the disinfection tank 14, the superheated steam that has passed through the disinfection tank 14 and has been slightly cooled by heat exchange is used. In the case of cooling with the vessel 46, cooling can be performed efficiently.

In the cooler 46, a cooling pipe 62, which is a metal pipe through which superheated steam passes, is provided. The cooling pipe 62 may be formed in a coil shape or a waveform in order to increase a contact area between the cooling pipe 62 and water introduced from the water supply pipe 12 side. Further, similarly to the above-described embodiment, the introduction pipe 52 is provided so that water before disinfection can be introduced from the water supply pipe 12 before being introduced into the disinfection tank 14.
It is arranged branching from. The superheated steam that has been cooled and condensed in the cooler 46 is mixed with the disinfecting water in the disinfecting water supply pipe 16 via the water supply pipe 59.

As in the present embodiment, a cooler 46 is provided,
By mixing the water obtained by cooling the superheated steam into the disinfecting water, the disinfecting water is appropriately cooled to reach a temperature that can be used by the user. Further, since the temperature of the superheated steam is sterilized by increasing the temperature to 500 degrees, sterilized water, which is a condensed superheated steam, can be directly mixed. That is, by mixing the superheated steam into the disinfecting water, the propagation state of the bacteria of the disinfecting water can be suppressed.

(Fourth Embodiment) Next, a fourth embodiment of the hospital water supply apparatus of the present invention will be described. Note that the same components as those in the above-described embodiment are denoted by the same reference numerals, and description thereof may be omitted. In the water supply device according to the present embodiment, the heat storage tank 22 for generating superheated steam is used.
And a cooler 64 for cooling the superheated steam discharged from the heat storage tank 22. Then, the superheated steam that has been cooled and condensed flows into the water supply pipe 69 so that it can be used as it is for washing or the like.

The structure of the cooler 64 will be described. Cooler 64
Are connected to an introduction pipe 65 for introducing cooling water, a tank 67 for storing the introduced water, a drain pipe 66 for draining the introduced water, and the heat transfer pipe 24 of the heat storage tank 22, And a cooling pipe 68 arranged to pass through the inside of the tank 67. The superheated steam cooled by the cooling pipe 68 is supplied to the user through a water supply pipe 69. Here, a normal water pipe is used as the introduction pipe 65, but the present invention is not limited to this as long as heat exchange with superheated steam can cool the superheated steam. In addition, the cooling pipe 68 may be formed in a coil shape or a waveform in order to increase the contact area with the introduced water.

By providing such a hospital water supply apparatus, it is possible to supply sterilized water heated to 500 degrees Celsius and condensed with superheated steam which is originally sterilized and can be used directly. For this reason, there is no need to newly disinfect water, and it is not necessary to separately provide a disinfection tank or the like, so that the equipment can be simplified. When disinfecting the inner wall surface of the water supply pipe 69, if the superheated steam is introduced into the water supply pipe at the same temperature without being cooled by the cooler 64, the inner wall surface of the water supply pipe 69 can also be disinfected, The trouble of disinfecting the water supply pipe 69 can be saved.

(Fifth Embodiment) Next, a fifth embodiment of the hospital water supply apparatus of the present invention will be described with reference to FIG. Note that the same components as those in the above-described embodiment are denoted by the same reference numerals, and description thereof may be omitted. In this embodiment, a water heater 70 is provided in the water supply pipe 12 in order to supply warm water to the user. Here, the water heater 70 is performed using superheated steam supplied from the heat storage tank 22 that generates superheated steam. That is, the water heater 70 includes a tank 72 configured to cover the outside of the water supply pipe 12 at a predetermined interval,
An introduction pipe 74 for introducing superheated steam into the tank 2 and a tank 72
And a pipe 28 for exchanging heat with water that is introduced into the inside and passes through the water supply pipe 12 to discharge cooled superheated steam.

In the water supply apparatus provided with such a water heater 70, it is not necessary to provide hot water supply equipment using gas or the like, and superheated steam using heat previously stored using inexpensive midnight power is used. As a result, the running cost can be reduced. It is preferable that such a water heater is attached to the above-described first to fourth embodiments.

Although the present invention has been described in detail with reference to preferred embodiments, the present invention is not limited to these embodiments, and many modifications can be made without departing from the spirit of the invention. Of course.

[0049]

According to the hospital water supply apparatus of the present invention,
The water introduced into the disinfection tank can be heated using heat stored using inexpensive midnight power. For this reason, the running cost of the water supply device can be reduced. Further, according to the hospital water supply device of the eighth aspect, since the superheated steam which is originally higher than 500 degrees and is sterilized is condensed and used for water for washing, etc., equipment such as a disinfection tank becomes unnecessary. In addition, superheated steam is generated by using heat stored using inexpensive midnight power, so that almost no power is used during the daytime when water supplied is directly used. Therefore, the running cost of the apparatus can be reduced. Furthermore, according to the hospital water supply apparatus of the twelfth aspect, it is possible to reduce the size of the whole without having to employ a large-sized hot water supply equipment heated by gas, and to store heat using inexpensive midnight power. Since the heat of the stored heat storage tank can be used, the running cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a piping diagram showing a configuration of a hospital water supply apparatus according to the present invention.

FIG. 2 is a sectional view showing the structure of a heat storage tank.

FIG. 3 is an explanatory diagram showing a state of filling a heat storage material in a heat storage unit of a heat storage tank.

FIG. 4 is a graph showing a change over time in output characteristics of a heat storage tank.

FIG. 5 is a piping diagram showing a second embodiment of the hospital water supply apparatus according to the present invention.

FIG. 6 is a piping system diagram showing a third embodiment of the hospital water supply apparatus according to the present invention.

FIG. 7 is a piping diagram showing a fourth embodiment of the hospital water supply apparatus according to the present invention.

FIG. 8 is a piping diagram showing a fifth embodiment of the hospital water supply apparatus according to the present invention.

FIG. 9 is a piping diagram showing a configuration of a conventional hospital water supply apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Hospital water supply apparatus 12 Water supply pipe 14 Disinfection tank 15 Faucet 16 Disinfection water supply pipe 18 Heating means 19, 20 Superheated steam supply pipe 22 Heat storage tank 24 Heat transfer pipe 25 Supply pipe 26, 49, 50 Pump 27, 28, 76 Pipe 30 Control valve 32 Bypass pipe 36 Heat storage unit 38 Electric heater 40 Heat insulator 42 Solid heat storage material 44 Liquid heat storage material 46, 64 Cooler 48 Cooling pipe 52, 65, 74 Introductory pipe 54, 66 Drain pipe 55, 67, 72 Tank 56 , 62, 68 Cooling pipe 58 Three-way valve 59 Water supply pipe 70 Water heater

Claims (16)

[Claims] A disinfection tank connected to the water supply pipe, for introducing water from inside the water supply pipe, heating and disinfecting the water by heating means, and discharging the disinfected water after disinfection; And a disinfecting water supply pipe for supplying disinfecting water discharged from the disinfecting tank, wherein the heating means comprises a heat storage unit filled with a solid heat storage material and a liquid heat storage material. A heat storage tank provided with a heater that heats the heat storage unit, and a heat transfer tube that is disposed so as to pass through the heat storage unit and that discharges superheated steam by superheating water supplied to the heat storage unit. A superheated steam supply pipe connected to the heat transfer pipe and arranged so that superheated steam generated by being superheated in the heat storage unit passes through the disinfecting tank. Water supply device. 2. One end is connected to the heat transfer pipe or the superheated steam supply pipe, and the other end is connected to a disinfecting water supply pipe. In the disinfecting water supply pipe, superheated steam generated by being superheated by the heat storage unit is provided. 2. The hospital water supply apparatus according to claim 1, further comprising a second superheated steam supply pipe disposed so as to supply the water. 3. A cooling device for cooling water discharged from the disinfecting tank is provided.
Hospital water supply as described. 4. A third superheated steam supply pipe connected to the heat transfer pipe or the superheated steam supply pipe, and a cooler for cooling and condensing superheated steam passing through the third superheated steam supply pipe. A second water supply pipe connected between the cooler and the disinfecting water supply pipe so as to supply the superheated steam cooled by the cooler to the disinfecting water supply pipe. Item 5. A hospital water supply device according to item 1, 2 or 3. 5. The solid heat storage material in the heat storage section is made of solid heat storage materials having different particle diameters, and the small-diameter solid heat storage material enters the gaps between the large particle diameter solid heat storage materials in the heat storage section. And a gap between the solid heat storage materials is filled with a liquid heat storage material.
Or the hospital water supply device according to 4. 6. The solid thermal storage material in the thermal storage unit is one or more particles selected from magnesia, magnetite, silica, and alumina.
2. The hospital water supply device according to 2, 3, 4 or 5. 7. The hospital water supply device according to claim 1, wherein the liquid heat storage material in the heat storage unit is a nitrate. 8. A heat storage unit filled with a solid heat storage material and a liquid heat storage material, a heater for heating the heat storage unit, and water provided to pass through the heat storage unit and supplied to the heat storage unit. A heat storage tank provided with a heat transfer tube for discharging superheated steam by overheating; a superheated steam supply tube having one end connected to the heat transfer tube; and a superheated steam connected to the other end of the superheated steam supply tube. A water supply device for a hospital, comprising: a cooler that cools and condenses water; and a water supply pipe that is connected to the cooler and supplies condensed superheated steam. 9. The solid heat storage material in the heat storage unit is made of solid heat storage materials having different particle diameters, and the small-diameter solid heat storage material enters the gaps between the large-diameter solid heat storage materials in the heat storage unit. 9. The hospital water supply apparatus according to claim 8, wherein the liquid heat storage material is filled in a gap between the solid heat storage materials. 10. The solid heat storage material in the heat storage unit is one or more kinds of particles selected from magnesia, magnetite, silica and alumina.
Or a hospital water supply device according to 9. 11. The hospital water supply apparatus according to claim 8, wherein the liquid heat storage material in the heat storage unit is a nitrate. 12. A hospital water supply apparatus comprising: a water supply pipe; and a water heater for heating water in the water supply pipe, wherein the water heater comprises: an outer cylinder that covers a periphery of the water supply pipe with a predetermined space. A heat storage section filled with a solid heat storage material and a liquid heat storage material; a heater for heating the heat storage section; and a heat storage section disposed to pass through the heat storage section and overheating water supplied to the heat storage section. A heat storage tank provided with a heat transfer tube for discharging water vapor, and superheated steam that is connected to the heat transfer tube and is generated by being superheated in the heat storage unit is formed between the outer cylinder and the water supply pipe. And a superheated steam supply pipe disposed to supply the space. 13. One end is connected to the heat transfer pipe or the superheated steam supply pipe, and the other end is connected to the water supply pipe downstream of the part where the water heater is provided, and from the part where the water heater is provided. Also in the water pipe on the downstream side,
The hospital water supply device according to claim 12, further comprising a second superheated steam supply pipe arranged so as to be able to supply superheated steam generated by being superheated in the heat storage unit. 14. The solid heat storage material in the heat storage unit is made of solid heat storage materials having different particle diameters, and the small heat storage material having a small particle diameter enters into the gap between the large particle diameter solid heat storage materials in the heat storage unit. 14. The hospital water supply apparatus according to claim 12, wherein a liquid heat storage material is filled in a gap between the solid heat storage materials. 15. The solid thermal storage material in the thermal storage unit is one or more particles selected from magnesia, magnetite, silica, and alumina.
15. The hospital water supply device according to 2, 13, or 14. 16. The hospital water supply device according to claim 12, wherein the liquid heat storage material in the heat storage unit is a nitrate.