CN108954806B

CN108954806B - Electric water heater capable of automatically cleaning scale

Info

Publication number: CN108954806B
Application number: CN201810884428.5A
Authority: CN
Inventors: 姜井平; 姜铭成
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-08-06
Filing date: 2018-08-06
Publication date: 2020-11-06
Anticipated expiration: 2038-08-06
Also published as: CN108954806A

Abstract

The invention discloses an electric water heater capable of automatically cleaning scale, and belongs to the field of household appliances. The water heater is provided with the inner water tank and the outer water tank, the heating rod is arranged at the bottom of the outer side of the inner water tank, when the water heater is used, the pressure of the water tanks is that tap water is communicated, namely 6 atmospheric pressures, when a hot water outlet is opened, the pressure of the water tanks is reduced, the tap water enters from cold water inlets of the inner water tank, flows to the bottoms of the two sides of the outer water tank from water outlets on the two sides of the inner water tank and then flows to a hot water outlet of the outer water tank, the water in the water tanks is fully heated through heat transfer, and the water tanks are taken along with water flow when the water heater is used every time because the bottom of the outer water tank is provided.

Description

Electric water heater capable of automatically cleaning scale

Technical Field

The invention relates to the field of household appliances, in particular to an electric water heater capable of automatically cleaning scale.

Background

The existing electric water heater adopts bottom water inlet, an overflow port at the upper part in a water tank is used for discharging water, scale generated by high temperature during water boiling is deposited at the bottom of the water tank and cannot be discharged from a hot water outlet at the upper part of the water tank, and after a long time, the scale can be formed into blocks and firmly attached to the bottom of the water tank, so that the water tank is difficult to clean. In some areas with harder water quality, the water scale caking phenomenon is more serious, so that the electric water heater can not be normally used. The scale deposited at the bottom of the water tank is easy to breed bacteria, pollutes water and harms the health of people.

Disclosure of Invention

The invention aims to provide an electric water heater capable of automatically cleaning scale.

The technical scheme of the invention is as follows: the utility model provides an automatic wash electric water heater of incrustation scale, including outer water tank, the inside inner water tank that is equipped with of outer water tank, the top both sides of inner water tank are equipped with inner water tank delivery port, be equipped with the electric bar between the outer water tank bottom outside and the outer water tank, outer water tank bottom is equipped with the delivery port, delivery port department is connected with the outlet pipe, inner water tank bottom is equipped with the water inlet, water inlet department is connected with the inlet tube, be equipped with non-pressure release check valve on inlet tube and the outlet pipe respectively, be close to the vertical blast pipe that is equipped with in inner water tank one side in the outer water tank, the blast pipe is close to inner water tank delivery port one.

According to a further technical scheme, the water inlet pipe is a T-shaped tee-joint water pipe, and two water inlets in the water inlet pipe are arranged in a manner of being closely attached to the bottom surface of the inner water tank in parallel.

In a further technical scheme, the volume of the inner water tank is 3/4 of the volume of the outer water tank.

The invention has the beneficial effects that:

1. according to the invention, the inner water tank and the outer water tank are arranged, the heating rod is arranged at the bottom of the outer side of the inner water tank, when the water heater is used, the pressure of the water tanks is that tap water is communicated, namely 6 atmospheric pressures, when a hot water outlet is opened, the pressure of the water tanks is reduced, the tap water enters from a cold water inlet of the inner water tank, flows to the bottoms of the two sides of the outer water tank from water outlets on the two sides of the inner water tank and then flows to a hot water outlet of the outer water tank, the water in the water tanks is fully heated by heat transfer, no scale is generated in the inner water tank because the heating rod is only arranged in the outer water tank, and the scale is taken out of the water tanks along with water flow when the water heater is used every time because the.

2. According to the invention, air in the water tank is compressed by water pressure and flows to the lower exhaust valve through the air exhaust pipeline in the water tank, because the exhaust port of the exhaust valve is opened, the air in the water tank is exhausted by the exhaust valve, after the water tank is full of water, the water overflows into the exhaust valve through the exhaust port, the float bowl of the exhaust valve is floated by the water, and the exhaust valve is automatically closed.

Drawings

FIG. 1 is a schematic structural view of the present invention,

figure 2 is a schematic view of the water flow in use of the present invention,

the water heater comprises an outer water tank 1, an inner water tank 2, an inner water tank 21, an inner water tank water outlet 3, an electric heating rod 4, a water outlet 5, a water outlet pipe 6, a water inlet 7, a water inlet pipe 8, a non-pressure-relief one-way valve 9, an exhaust pipe 91, an exhaust port 10, an exhaust valve 11 and a pressure relief valve.

Detailed Description

The invention will be further illustrated and understood by the following non-limiting examples.

Referring to fig. 1-2, the present invention relates to an electric water heater for automatically cleaning scale, which adopts an inner and outer container structure, and comprises an outer water tank 1, an inner water tank 2 arranged inside the outer water tank 1, wherein the capacity of the inner water tank 2 is 3/4 of the capacity of the outer water tank 1,

the top both sides of interior water tank 2 are equipped with interior water tank delivery port 21, are equipped with the glow stick 3 between the 2 bottom outsides of interior water tank and the outer water tank 1, and outer water tank 1 bottom is equipped with delivery port 4, and delivery port 4 department is connected with outlet pipe 5, and interior water tank 2 bottom is equipped with water inlet 6, and water inlet 6 department is connected with inlet tube 7, is equipped with non-pressure release check valve 8 on inlet tube 7 and the outlet pipe 5 respectively. The water inlet pipe 7 is a T-shaped tee-joint water pipe, and two water inlets 6 on the water inlet pipe 7 are arranged in parallel and tightly attached to the bottom surface of the inner water tank.

Be close to the vertical blast pipe 9 that is equipped with in 2 one side of interior water tank in the outer water tank 1, blast pipe 9 is close to interior water tank delivery port 21 one end and is the gas vent 91, and gas vent 91 position is higher than interior water tank delivery port 21, and 1 one end of blast pipe 9 surpasss outer water tank is equipped with discharge valve 10, relief valve 11 in proper order.

When water is boiled, the electric heating rod 3 is arranged between the bottoms of the outer water tank 1 and the inner water tank 2, the generated scale is only arranged at the bottom of the outer water tank 1, the electric heating rod 3 is not arranged in the inner water tank 2, the scale is not generated, the water temperature of the inner water tank 2 is transferred by the water temperature of the outer water tank 1,

the water heater is characterized in that water is fed into the bottom of an inner water tank 2, because of the principle that the specific gravity of cold water is heavy, the cold water at the bottom slowly presses hot water in the inner water tank 2 into an outer water tank 1 from a top water outlet hole, the hot water flows from two sides of the outer water tank 1 to the bottom and then flows from the bottom to a water outlet of a middle water heater, the water flow fully carries scale generated when the water is boiled at the bottom, water outlet holes at two sides of the inner water tank 2 are as close to the top positions of the two sides as possible to ensure that the hot water in the inner water tank 2 is fully used, the hot water flows out from the two sides and flows to the bottom of the outer water tank 1, water flows from the two sides of the bottom to a middle hot water outlet, the water flows out from the bottom of the outer water tank 1, the scale at the bottom of the,

the air outlet is close to the top of the outer water tank 1 as much as possible, and air in the outer water tank 1 is fully discharged, so that the water capacity of the outer water tank 1 is maximized.

The water inlet is opened, air in the water tank flows to the exhaust valve 10 below through the air exhaust pipeline in the water tank after being compressed by water pressure, the air in the water tank is exhausted through the exhaust valve 10 because the exhaust port of the exhaust valve 10 is opened, the water in the water tank overflows into the exhaust valve 10 through the exhaust port 91 after the water tank is full of water, the float bowl of the exhaust valve 10 is floated by the water, and the exhaust valve 10 is automatically closed.

When the electric bar 3 heats the water in the water tank, oxygen in the water is released to the water tank due to the rising of the water temperature. The air in the upper part of the tank increases to increase the pressure in the tank, and the air in the upper part of the tank is discharged out of the tank through the vent 91 to the relief valve 11.

When the air on the upper part of the water tank is increased, the water level of the water tank is reduced, water can not overflow from the air outlet 91, the air in the water tank can compress the water in the exhaust pipe 9 to be discharged from the pressure release valve 11, when the water in the exhaust pipe is completely emptied, the water in the exhaust valve 10 is also emptied, the buoy falls down, the valve is automatically opened, the air in the water tank is discharged, the emptied space is supplemented by the water,

the original "one-way pressure release dual-purpose valve" under the water inlet 6 is no longer used, changes into the one-way valve of independent function, prevents that the inside pressure of water tank from because the pressure release of water inlet 6 "one-way pressure release dual-purpose valve" does not pass through the relief valve 11 evacuation under the air evacuation pipe, leads to the air in the water tank to gather more.

The working process is as follows: when the electric heating rod 3 is heated, water in the outer water tank 1 is heated, generated scale deposits sink at the bottom of the outer water tank 1, water in the outer water tank 1 surrounds the whole inner water tank 2, the water temperature of the outer water tank 1 is quickly transferred to the inner water tank 2, finally the water temperatures of the two water tanks are the same, the inner water tank 2 is not heated by the electric heating rod 3, and no scale deposits are generated, when the electric heating water, so that the water tank and the electric heating rod 3 can be cleaned in time.

Claims

1. The utility model provides an automatic wash electric water heater of incrustation scale, including outer water tank, a serial communication port, outer water tank inside is equipped with interior water tank, the top both sides of interior water tank are equipped with interior water tank delivery port, be equipped with the electric bar between the inside water tank bottom outside and the outer water tank, outer water tank bottom is equipped with the delivery port, delivery port department is connected with the outlet pipe, interior water tank bottom is equipped with the water inlet, water inlet department is connected with the inlet tube, be equipped with non-pressure release check valve on inlet tube and the outlet pipe respectively, be close to the vertical blast pipe that is equipped with in interior water tank one side in the outer water tank, the blast pipe is close to interior water tank delivery port one end and is the gas vent, the gas vent position is higher than interior water tank delivery port, the blast pipe.

2. The electric water heater for automatically cleaning scale according to claim 1, wherein the water inlet pipe is a T-shaped three-way water pipe, and two water inlets of the water inlet pipe are arranged in parallel and tightly attached to the bottom surface of the inner water tank.

3. An automatic scale-cleaning electric water heater according to claim 1, wherein the volume of the inner tank is 3/4 of the volume of the outer tank.