KR20060019423A - Hot water tank for cold / hot water purifier to prevent hot water backflow - Google Patents

Abstract

The present invention prevents the phenomenon of the backflow of hot water in the hot water tank when the water temperature and steam pressure in the hot water tank is excessively high, and stably discharges the internal steam when the steam pressure in the hot water tank exceeds a predetermined steam pressure. The present invention relates to a hot water tank for cold / hot water purifier, which can not only increase the temperature of water in the hot water tank but also reduce the temperature deviation due to the inflow and mixing of cold water.

The hot water tank for cold water purifier to prevent the backflow phenomenon according to the present invention,

A main body having a water storage space formed therein and an inlet pipe and an outlet pipe;

A heater built in the main body to heat water in the reservoir; And

It is provided on the inlet pipe of the main body, and includes a non-return valve for preventing the water inside the main body to flow back through the inlet pipe.

In addition, the hot water tank for cold and hot water purifier to prevent the backflow according to the present invention, is installed on the upper surface of the main body, and further includes a safety valve for discharging the internal steam to the outside when the steam pressure inside the main body exceeds the set pressure; It is preferable.

Hot water tank, main body, heater, inlet pipe, steam pressure, non-return valve, safety valve

Description

Hot water tank for cold / hot water purifier that prevents backflow {WATER HEATING BATH F0R A COLD / HOT-WATER CLEANER}             

1 is a structural diagram of a typical cold and hot water purifier.

2 is a perspective view of a hot water tank for cold / hot water purifier according to the present invention;

3 is a cross-sectional view of the hot water tank for cold / hot water purifier according to the present invention.

Figure 4 is an exploded perspective view of the non-return valve of the hot water tank for cold / hot water purifier according to the present invention.

3a and 3b is an operation of the non-return valve of the hot water tank for cold / hot water purifier according to the present invention.

Explanation of symbols on the main parts of the drawings

1: hot water tank for cold and hot water purifier 10: main body

11: reservoir space 12: water pipe

13: water outlet 20: heater

30: non-return valve 31: lower casing

32: closing member 33: upper cap

35: floating port 40: safety valve

100: cold and hot water purifier

The present invention relates to a hot water tank for cold and hot water purifiers, and more particularly, when the water temperature and steam pressure in the hot water tank are excessively high, a phenomenon in which water inside the hot water tank is prevented from flowing back, and the steam pressure inside the hot water tank is set to a set pressure. When the excess water is discharged, it is possible to stably raise the temperature of the water in the hot water tank, and to reduce the temperature deviation due to the inflow and mixing of the cold water. will be.

As shown in FIG. 1, in a general cold / hot water purifier 100, a water tank 110 storing water filtered by a filter (not shown) and an internal water supply tank 110 through an inlet pipe 121. Cold water tank 120 for quenching the water flowing into the refrigerant through the refrigerant pipe 123 surrounding the outer surface and discharged, and the water flowing into the water from the water supply tank 110 through the inlet pipe 131 built-in heater ( The hot water tank 130 for heating and discharging through the 133 is provided.

However, when the above-described hot water tank 130 is overheated and the water temperature and vapor pressure of the hot water tank 130 are excessively high, the water stored therein boils and flows back to the water tank 110 through the water inlet pipe 121. This phenomenon occurs, such a reverse flow phenomenon is caused to increase the temperature of the water in the water tank 110 to reduce the cooling performance in the cold water tank (120).

In addition, when the steam pressure inside the hot water tank 130 is excessively high, there is a risk that the hot water tank 130 may not withstand the steam pressure and be damaged. In general, the temperature of the water in the hot water tank 130 is a high temperature of a predetermined temperature or more. It is not possible to raise the temperature, which is not appropriate for the case of relatively high temperature water, for example, in the case of concern with traditional cars, and the cold water introduced into the hot water tank 130 is mixed with the hot water inside the hot water tank 130. There is a problem that the temperature deviation generated when the increase.

Accordingly, it is an object of the present invention to provide a hot water tank for a cold / hot water purifier, in which a phenomenon in which the hot water inside the hot water tank is reversed when the water temperature and the vapor pressure in the hot water tank is excessively high can be prevented.

Still another object of the present invention is to stably increase the temperature of the water contained in the hot water tank by releasing internal steam when the steam pressure inside the hot water tank exceeds the set pressure, and to reduce the temperature deviation due to the inflow and mixing of cold water. It is to provide a hot water tank for cold and hot water purifier.

The above object of the present invention,

A main body having a storage space formed therein and having an inlet pipe and an outlet pipe at the top;

A heater built in the main body to heat water in the reservoir; And

It is achieved by providing a hot water tank for cold and hot water purifier, which is installed on the water inlet pipe of the main body, and includes a non-return valve preventing the water inside the main body from flowing backward through the inlet pipe.

Another object of the present invention described above,

It is achieved by providing a hot water tank for cold / hot water purifier, which is installed on the upper surface of the main body and further includes a safety valve for discharging the internal steam to the outside when the vapor pressure inside the main body exceeds the set pressure. .

According to a preferred feature of the invention, the non-return valve,

A lower casing installed on an upper surface of the main body, and having a through hole through which an inlet pipe is fitted in the center thereof, and having a closing prevention member formed at an upper end thereof;

An upper cap sealingly coupled to the lower casing and having an inner space communicating with an inlet pipe at a center thereof, and having a connection portion at an upper portion thereof; And

It is accommodated in the inner space of the upper cap, is floated by the vapor pressure inside the main body to close the upper end of the inner space to prevent the water inside the main body backflow; includes.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which is not intended to limit the technical scope of the present invention.

As shown in Figures 2 and 3, the hot water tank 1 for cold and hot water purifier to prevent the backflow phenomenon according to the present invention, the water storage space 11 is formed therein and the water inlet pipe 12 for the access of water on the top ) And a water outlet pipe 13, a fixing bracket 14 for fixing into the cold / hot water purifier, and a main body 10 having a drain pipe 15 provided at a lower portion thereof, and a state fixed to the lower surface of the main body 10. When the heater 20 is built into the furnace body 10 and heats the water in the water storage space 11, and is installed on the inlet pipe 12 of the body 10, the vapor pressure in the body 10 is excessive. In the main body 10 includes a non-return valve 30 to prevent the water flowing back through the inlet pipe (12).

Here, the main body 10 is the water inlet pipe 12, the water outlet pipe 13 and the fixing bracket 14 at the upper and lower ends of the cylindrical portion 10a welded by joining both edges after bending the stainless steel sheet having high corrosion resistance. The upper cover (10a) having a), and the lower cover (10c) having a drain pipe 15 and the heater 20 is formed by integrally coupling through seaming (seaming).

On the outer surface of the main body 10, a temperature control member 16 is fixed by a predetermined fixture to maintain the water temperature inside the main body 10 at a predetermined temperature.

On the inlet pipe 12 of the body 10 described above, there is provided a non-return valve 30 to prevent water in the body 10 from flowing back when the vapor pressure in the body 10 is excessive. 3 to 4, the non-return valve 30 is installed on the upper surface of the main body 10, the through-hole 31a is formed in the center of the water inlet pipe 12 is coupled to the upper end is formed It is sealingly coupled to the lower casing 31 by the lower casing 31 provided with the closing preventing member 32 and the sealing member 34 installed in the groove 31b formed on the outer circumferential surface of the lower casing 31. An inner space (33a) is formed in communication with the inlet pipe 12 in the center and the upper cap 33 is provided with a connecting portion (33b) connected to the water supply tank of the cold and hot water purifier at the top, and the inner space of the upper cap (33) 33a) and the upper cap 33 as it is supported by the vapor pressure inside the body 10 when the vapor pressure inside the body 10 is excessive. It is preferable to include a floating hole 35 to close the upper end of the inner space (33a) of the water inside the body 10 to prevent the back flow.

Here, a male screw portion 31b is formed on the upper outer circumferential surface of the lower casing 31, and a female screw portion 33c corresponding to the male screw portion 31b is formed on the lower inner circumferential surface of the upper cap 33, thereby lowering the casing 31. ) And the upper cap 33 is screwed together.

Closing prevention member 32 is formed in the form of a bar extending across the upper end of the lower body 31, so that even if the vapor pressure inside the main body 10 is low, the floating holes 35 by the lower casing by its own weight ( 31 is in close contact with the upper end of the inlet pipe 12 to prevent the water through the inlet 12 serves to enable the water to be introduced into the body (10).

In addition, the setting of the vapor pressure inside the main body 10 such that the backflow prevention occurs by the non-return valve 30 may be set by the weight of the float 35.

Therefore, when the above-mentioned non-return valve 30 has the vapor pressure inside the main body 10 lower than the own weight of the floating hole 35, as shown in FIG. 5A, the floating hole 35 is an internal space ( 34) is located on the closing prevention member 32 which is the lowest position within the body to enable the inflow of water into the main body 10, but if the vapor pressure inside the main body 10 is excessively high enough to cause a backflow phenomenon, As shown in FIG. 5B, the floating port 35 is floated upward by the vapor pressure inside the main body 10 to close the upper end of the inner space 33a of the upper cap 33, thereby obtaining the inlet pipe 12. Not only prevents water from flowing into the body 10 through the water pipe 12, but also prevents water in the body 10 from flowing back into the water supply tank (not shown) of the cold / hot water purifier.

On the upper surface of the main body 10, a safety valve for stably raising the water temperature inside the main body 10 by immediately discharging the internal steam to the outside when the vapor pressure in the main body 10 exceeds the set pressure. 40 is preferably installed, the structure of such a safety valve 40 is known to be widely applied to a conventional pressure cooker, etc., and will not be described in detail here. The set pressure of the safety valve 40 for discharging the steam in the main body 10 may be determined by the elastic force of an elastic spring (not shown) included therein.

Therefore, when the steam pressure inside the main body 10 is less than the elastic force (set pressure) of the elastic spring, the steam inside the main body 10 cannot be discharged to the outside as the safety valve 40 is closed, but the main body 10 When the internal steam pressure exceeds the elastic force of the elastic spring, the steam inside the main body 10 is discharged to the outside of the main body 10 as the safety valve 40 opens. Vapor pressure is reduced.

Since the main body 10 may not be damaged by the internal steam pressure by the action of the safety valve 40 described above, the user may safely increase the water temperature in the main body 10 to a high temperature, and may be caused by the opening and closing of the safety valve 40. The change in the steam pressure inside the main body 10 also affects the above-described floating port 35 of the non-return valve 30.

As described above, in the hot water tank for cold / hot water purifier, in which the backflow phenomenon is prevented according to the present invention, the backflow phenomenon generated when the water temperature and vapor pressure in the main body is excessively high can be prevented by the backflow prevention valve. Cooling performance can be improved.

In addition, when the internal steam pressure exceeds the preset steam pressure, the internal steam is immediately discharged through the safety valve to stably raise the temperature of the water contained in the hot water tank to a high temperature, and also to reduce the temperature deviation due to the inflow and mixing of cold water. It can be reduced, and can be used even when hot water is required, such as when brewing traditional tea.

Claims (3)

A main body having a water storage space formed therein and an inlet pipe and an outlet pipe; A heater embedded in the main body to heat water in the reservoir; And It is installed on the water inlet pipe of the main body, the hot water tank for cold water purifier to prevent the backflow phenomenon comprising a; backflow prevention valve for preventing the water inside the body backflow through the inlet pipe. The method of claim 1, It is installed on the upper surface of the main body, the hot water tank for cold water purifier to prevent backflow phenomenon further comprising a safety valve for discharging the internal steam to the outside when the steam pressure inside the main body exceeds the set pressure. The method of claim 1 or 2, wherein the non-return valve, A lower casing installed on an upper surface of the main body, a through hole through which the water inlet pipe is inserted and coupled to a center thereof, and a closing preventing member disposed on an upper end thereof; An upper cap sealingly coupled to the lower casing and having an inner space communicating with the water inlet at the center thereof and having a connection portion at an upper portion thereof; And A floating port accommodated in the inner space of the upper cap and supported by the vapor pressure inside the main body to close the upper end of the inner space to prevent the water inside the main body from flowing backward; The hot water tank for cold and hot water purifier is prevented.

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