JP2518239Y2 - Thermal insulation storage device for sterile water - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The sterile water heat retention storage device according to the present invention is used to store sterile water for hand washing in a hospital or the like.

(Prior art and its problems) As sterilized sterile water is used as water for hand washing in hospital operating rooms, etc., but such sterile water is stored in a storage tank at a temperature around body temperature. It is stored in a maintained state and taken out from the faucet, etc., if necessary.

Therefore, it is necessary to incorporate in the storage tank a heater for keeping the sterile water at a predetermined temperature (body temperature) and a sterilizer for preventing germs from propagating in the stored sterile water. is there.

Therefore, conventionally, in the storage tank for storing sterile water,
A sterile water heat retention storage device is used which is provided with a heater for holding the sterile water at a predetermined temperature and an ultraviolet germicidal lamp for preventing germs from growing in the sterile water.

However, in the case of the conventional aseptic water thermal storage device, an ultraviolet sterilizing lamp for preventing the growth of various germs and a heater for thermal insulation were provided separately, so installation space and operating costs (power consumption)
It was unavoidable that it was too big.

The aseptic water heat retention storage device of the present invention was conceived in view of the above-mentioned circumstances.

(Means for Solving the Problem) The heat retention storage device for sterile water according to the present invention is provided in a storage tank for storing sterile water and a bottom portion of the storage tank to keep the sterile water at a predetermined temperature and A heater that induces convection in water and a heater that is placed inside the convection flow caused by this heater and has titanium oxide (TiO ₂ ) at least on the surface.
And a member covered by.

(Operation) In the sterile water heat retention storage device of the present invention configured as described above, when the heater is energized in order to keep the sterile water at a predetermined temperature, it is caused by the energization of the heater. Aseptic water flows by convection while contacting a member whose surface is covered with titanium oxide.

Titanium oxide has a bactericidal action like copper (Cu), so that the sterile water flowing while contacting the member is sterilized so that germs do not propagate in the sterile water.

(Embodiment) Next, the present invention will be described in more detail with reference to the illustrated embodiment.

1 and 2 show an embodiment of the present invention, in which FIG. 1 is a schematic vertical sectional view showing the entire structure, and FIG. 2 is an enlarged sectional view of a portion A in FIG.

Aseptic water 6 can be freely supplied into the closed cylindrical storage tank 1 through a water supply pipe 2. A water level controller 3 for controlling opening and closing of a valve in the water supply pipe 2 and an intake pipe 4 are provided above the storage tank 1. A sterilization filter 5 is provided at the end of the intake pipe 4, and the storage tank 1 is passed through a take-out pipe 7 provided at the bottom of the storage tank 1.
When the sterile water 6 therein is taken out, clean air is freely sucked into the storage tank 1 through the intake pipe 4.

A heater 8 is provided at the bottom of the storage tank 1.
The energization of the heater 8 is controlled based on a signal from a water temperature sensor 9 that detects the temperature of the sterile water 6, so that the temperature of the sterile water 6 is maintained at about body temperature. And
A sprayed layer of titanium oxide is formed on the surface of the heater 8 so that convection generated by energization of the heater 8 causes the convection current to flow toward the heater 8 to treat germ-free water 6 in contact with the surface of the heater 8. I have to.

Further, a water level gauge 10 of a communicating pipe type is provided on the side surface of the storage tank 1. A plate 13 made of titanium oxide is fixed in the socket 12 in which the lower end of the glass tube 11 constituting the water level gauge 10 is liquid-tightly connected, while the socket 12 is formed on the outer surface of the socket 12. Warm the sterile water 6 present in
Induces convection from the socket 12 to the glass tube 11,
A heater 14 is provided.

In the aseptic water heat retention storage device of the present invention configured as described above, in order to keep the aseptic water 6 at a predetermined temperature, when the heaters 8 and 14 are energized based on the signal from the water temperature sensor 9, this heater Aseptic water 6 flows due to convection caused by the energization of 8 and 14 while coming into contact with a heater 8 having a sprayed layer of titanium oxide on its surface or a plate 13 made of titanium oxide.

As described above, since titanium oxide has a sterilizing action like copper (Cu), the sterilized water 6 flowing while contacting the heater 8 or the plate 13 is sterilized, and various germs are contained in the sterilized water 6. It will not breed.

Since the bactericidal action of titanium oxide is improved by a factor of 2 to 3 in the presence of light as compared with the absence thereof, as shown in FIG. It can also guide light (light from fluorescent lamps is all right).

(Effect of the Invention) Since the sterile water thermal storage device of the present invention is configured as described above, it has a simple structure and can be manufactured at low cost, and the operating cost is low.

[Brief description of drawings]

1 and 2 show an embodiment of the present invention. FIG. 1 is a schematic vertical sectional view showing the overall structure, FIG. 2 is an enlarged sectional view of a portion A of FIG. 1, and FIG. 3 is a heater portion. 1 is a schematic diagram showing a structure for shining light. 1: Reservoir, 2: Water supply pipe, 3: Water level controller, 4: Intake pipe,
5: Sterilization filter, 6: Sterile water, 7: Extraction tube, 8: Heater,
9: Water temperature sensor, 10: Water level gauge, 11: Glass tube, 12: Socket part, 13: Plate, 14: Heater, 15: Optical fiber cable.

Claims (1)

(57) [Scope of utility model registration request] 1. A storage tank for storing sterile water, a heater provided at the bottom of the storage tank for holding the sterile water at a predetermined temperature and for causing convection to the sterile water, and a heater for causing the convection. A heat-retaining storage device for aseptic water, which is arranged inside a convective flow and has at least a surface covered with titanium oxide.