Drinking water dispenser with double heating boxes

Abstract

The invention discloses a drinking water dispenser with double heating boxes, which comprises a liquid inlet pipe, heating boxes, a heating element and a liquid outlet pipe, and is characterized in that the drinking water dispenser is provided with two heating boxes including a first heating box and a second heating box; the liquid inlet pipe is linked with the first heating box and the second heating box by an arranged liquid inlet triple valve, and the liquid outlet pipe is linked with the first heating box and the second heating box by an arranged liquid outlet triple valve; the liquid inlet triple valve is linked with the liquid outlet triple valve by a control rod; when the liquid inlet triple valve communicates the liquid inlet pipe with the first heating box, the liquid outlet triple valve communicates the second heating box with the liquid outlet pipe; when the liquid inlet triple valve communicates the liquid inlet pipe with the second heating box, the liquid outlet triple valve communicates the first heating box with the liquid outlet pipe; and the heating element comprises a first heating element and a second heating element. The drinking water dispenser can prevent long-boiled water caused by repetitive heating and avoid the mixing of raw cooling water and boiled water, and is applicable to heating equipment for liquid such as drinking water, drinks, liquid medicine and the like.

Description

technical field [0001] The invention relates to a heating device, in particular to a heating device that can prevent repeated heating from producing "thousand boiling water" and prevent raw and cold water from mixing with hot boiled water into "yin and yang water" (suitable for household water dispensers and enterprises and institutions) It can also be said to be a heating device that can prevent repeated heating from wasting energy and prevent unheated liquid from being mixed with heated liquid (suitable for Heating or processing equipment for liquids such as beverages and medicinal liquids). Background technique [0002] Drinking water heating devices in the prior art mainly include two categories, one is an electric water boiler, which is used in places with a large water consumption such as canteens, restaurants, production workshops, and waiting rooms. The water source is tap water, and the buoyancy valve is generally used as the water supply switch. The heated boiling...

AI Technical Summary

Problems solved by technology

What's more troublesome is that water users need to wait for the water in the water tank to be heated and boiled before drinking, which requires waiting for a period of time. These defects bring great inconvenience and unhygienic to water users

The other is the heating device in the household water dispenser. This heating device generally injects raw and cold drinking water (mainly bottled water or filtered tap water) at the bottom of the heating box, and the heated drinking water flows from the heating box. The discharge of hot water depends on the pressure of the cold water (water bucket or water tank) above the heating tank. As much hot water in the heating tank is discharged, as much cold water will be replenished into the heating tank, and hot boiling water and raw cold water will be produced at any time. Mixed "yin and yang water", when the temperature in the heating box drops, the yin and yang water is heated again. When the user has not used it for several hours, the hot boiled water in the heating box will be heated many times due to heat dissipation and cooling. Therefore, thousands of boiling water is generated, and the cold water injection port is usually not equipped with a switch. The hot boiling water in the heating tank will exchange heat with the cold water in the cold water tank or bucket, resulting in convection. The heat preservation effect of the heating tank is extremely poor, and repeated heating will waste a lot of electricity

[0003] For the heating device of the water dispenser, some manufacturers have come up with an instant tubular heating scheme, that is, the drinking water passes through the slender heating pipe, and the heating process is completed in the pipe. The characteristic is that the power of the heating element is relatively large. Household power supply lines cause a certain burden. In addition, the slender heating pipe will accumulate a lot of scale on the pipe wall during the heating process. Over time, it will seriously affect the heating efficiency or even the pipe will be blocked.

In addition, when a small amount of water is used, the water retained in the original heating pipe will flow out without completing the heating, and there is a defect that the water temperature is not high

In addition, the thermal efficiency of this pipe-type heating scheme is low, which is likely to cause heat loss, increase the user's electricity bill burden, and the load on the heating element is relatively high, increasing the user's power supply line cost

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