JPS6096854A - Chlorine remover for hot water supplier - Google Patents

Abstract

PURPOSE:To prevent the deterioration of a rubber hose by a method in which a chlorine remover is set on the upstream side of the rubber hose to remove chlorine present in supplied water and hot water flowing in the rubber hose. CONSTITUTION:A chlorine remover 12 is set on a chlorine removal section 2 of upstream side of a rubber hose used in the path through which water and hot water are supplied. The chlorine remover used is adsorbent such as activated carbon or compounds containing one or more oxides selected from the groups of magnesium, aluminium, and silica in the form of granular, block, or powdery solids having great surface areas. Since the inner surface of the rubber hose is protected from effects of chlorine in water, the deterioration of the rubber hose can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a device for removing chlorine contained in water supplied to water heating equipment, and is applicable to water storage tanks of natural circulation type and forced circulation type solar water heaters. Rubber hoses are often used in the waterways of heat collectors and water supply and refill waterways of water heaters with electric, gas, and oil heating wires, and this rubber hose is intended to prevent deterioration due to chlorine.

Conventional structure and its problems Rubber hoses normally used for this type of function are:
A considerable amount of carbon is added to the material formulation to strengthen its general properties as a rubber hose over a long period of time, making it resistant to sunlight and ultraviolet rays.

This carbon gradually becomes exposed due to the chlorine in the hot water supply over a long period of time, and when it freezes in the winter, it comes off the inside of the hose all at once and gets mixed into the hot water supply, causing a problem that stains the water black.

OBJECTS OF THE INVENTION The present invention was made in view of this problem, and it is an object of the present invention to provide a chlorine removal device that can suppress the deterioration of the rubber hose itself.

Structure of the Invention In order to achieve the above object, the present invention removes chlorine from the water supply and hot water flowing through the rubber hose by disposing a chlorine removal material on the upstream side of the rubber hose.

DESCRIPTION OF EMBODIMENTS In Fig. 1, 1 is a hot water storage tank, and a chlorine removal unit 2 is installed on the water supply side.
A pole tap 3 with a water guide pipe 4 and a hot water sampling port 8 are installed in the upper half.

Further, connection nipples 1a to the heat collector 6 are provided at four locations in the lower half. Heat collector 6 is hot water storage I! ! Usually 2 at the bottom of 1
There are two contact channel connection nipples 6a prepared at the upper end of each, made of rubber (material: EPDM).
In this case, the rubber hose 5 is fixed with a clamper 7.

The water 9 from which chlorine has been removed in the chlorine removal section 2 and supplied from the pole tap passes through the water guide pipe 4 and fills the hot water tank 1, but flows in the direction of the arrow and flows into the heat collector 6. , heated by solar heat. A return to the hot water storage tank 1 is included based on the thermosiphon principle. The heated water 9 is taken out from the sampling tank 8, but since the water level drops by that much, the water from which chlorine has been removed in the chlorine removal section 2 is replenished from the hole tap 3.

In this cycle, the rubber hose 5 serves as a passage through which water and hot water are slowly circulated by a thermosiphon. Although nothing is attached to the outer periphery of the rubber pouch 5, a foamed rubber pouch or the like may be attached to the outer periphery.

FIG. 2 is a sectional view of the chlorine removal part 2. In the same figure,
The water containing disinfectant chlorine (chlorine) flowing in from the inlet io is uniformized in flow through the fluid guide plate 11 with flowability at the bottom, and then passed through the chlorine removal material stored in the fluid guide plate 11''. 12, chlorine is removed and discharged from the outlet 13.

As a chlorine removal material, an adsorbent such as activated carbon or a compound containing one or more oxides selected from the group of magnesium, aluminum, and silica is effective. Use a solid substance of

The rubber hose (Material J: EPDM) with the above configuration does not come into contact with hot water containing disinfectant chlorine (chlorine) as described above, so its effectiveness was confirmed in the above test.

First, water with a chlorine concentration of 200 ppm was heated at 200 m 80 ° C (
7) Size 20”m x 20mIn (D rubber material (
Material: EpDm) and State (number of times: 70
The test solution was stirred at 0 r, p, m) and the degree of deterioration was examined after 12 hours. The degree of deterioration is determined by the unit type f of the rubber material.
The results, expressed as the weight of blackened precipitated particles per f1 (!/), are shown in Table 1. In water where chlorine was removed from the water supply using a chlorine-removing material, there were no blackened precipitated particles from the rubber material. , the effect was confirmed.

Furthermore, when the surface of each test piece was observed with a scanning electron microscope, it was found that the surface of the test piece using water from which chlorine was removed using a chlorine-removing material was the same as before the test, but the chlorine concentration was 200 pp.
The surface of the sample tested in 500 m of water was extremely uneven, indicating that it had deteriorated due to chlorine.

Effects of the invention ■ Since the chlorine removal material removes the disinfecting chlorine contained in the water supply, the inner surface of the rubber hose will not be affected by chlorine engravings in the water, and deterioration of the hose can be suppressed. .

- For the above reasons, the elution of various components such as carphone in the hose material can be suppressed, making the hot water purer. .

■ Compatible and convenient with existing equipment.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing an embodiment in which the chlorine removal device for a water heater of the present invention is used in a solar water heater, and FIG. 2 is a cross-sectional view of the main parts of the device. 2... Chlorine removal section, 5 Rubber hose, 12... Chlorine removal material. Name of agent: Patent attorney Toshio Nakao (1st person)
figure

Claims (2)

[Claims] (1) A chlorine removal device installed in a hot water supply equipment, in which a chlorine removal material is placed on the 1st stream side of the rubber hose used in the water supply, which ends up in the irrigation canal. (2) The chlorine removal material is activated carbon or magnesium,
The chlorine removal device for a water supply equipment as set forth in claim 1, which is a hydrochloric acid adsorbent containing one or more oxides selected from the group of aluminum and silica.