CN102022819B - Electric water heater - Google Patents

Abstract

An electric water heating device comprises a cold water tank, a heating water tank, an electric heater, a water outlet pipe and a water tap, wherein the cold water tank is communicated with the heating water tank; the water cooling tank is communicated with the heating water tank through a communicating water valve, and the communicating water valve comprises a valve body with a water guide channel, a float-type valve core and a valve core bracket; under a certain state, the valve core is matched with the valve seat, and under a certain state, the valve core is matched with the valve core bracket; the valve body is in sliding fit with the water outlet of the cold water tank, and the water inlet of the heating water tank is connected with the water outlet of the cold water tank. Due to the adoption of the structure, when the water level of the heating water tank is lower than the set water level, the communicating water valve is automatically opened, and the water in the cold water tank automatically enters the heating water tank; when the water in the heating water tank reaches a set water level or the pressure of steam is applied, the communicating water valve is automatically closed; the heating water tank has less heat loss, and only when the pressure in the heating water tank is too large, the communicating water valve releases the pressure, so that the heat loss is reduced compared with the prior art, and the energy-saving effect is achieved.

Description

An electric water heater

technical field

The invention relates to a hot water device.

Background technique

In the current prior art, an electric water heating device includes a cold water tank, a heating water tank, an electric heater, a water outlet pipe and a faucet. The cold water tank and the heating water tank are connected through an electromagnetic valve. A steam pipe is arranged in the cold water tank, and the steam pipe is connected to the heating water tank. connected. Existing problems are: complex structure, inconvenient assembly, large heat loss; when there is a problem in the circuit, the cold water tank and the water heater are not connected, and there is a phenomenon of dry heating.

Contents of the invention

The object of the present invention is to provide an electric water heating device, which is not only easy to assemble, but also automatically realizes the connection between the cold water tank and the heating water tank, relieves pressure and saves energy.

The present invention is realized in the following way: an electric water heating device includes a cold water tank, a heating water tank, an electric heater, a water outlet pipe and a faucet, and the cold water tank communicates with the heating water tank; its special feature is that it also includes a connecting water valve,

The communicating water valve includes a valve body with a water guide, a float spool and a valve core support, a water guide groove is arranged on the circumferential surface of the valve body, the water guide groove communicates with the water guide, and the upper part of the water guide of the valve body has a valve Seat, the spool support is set at the bottom of the valve body;

The float spool is slidably matched with the water guide, in a certain state, with the valve seat, and in a certain state with the spool support;

The valve body is slidingly matched with the water outlet of the cold water tank, and the water inlet of the heating water tank is connected with the water outlet of the cold water tank.

The electric water heating device described above is special in that: the float valve core is cylindrical.

The electric water heater described above is special in that: the float valve core is in the shape of an inverted truncated cone.

The above-mentioned electric water heating device is special in that: the float valve core is in the shape of a cylindrical spherical crown.

The above-mentioned electric water heating device is special in that: the top flange of the valve body cooperates with the bottom plate of the water tank at the water outlet of the cold water tank to seal.

An electric water heating device of the present invention adopts such a structure, when the water level of the heating water tank is lower than the set water level, the connecting water valve is automatically opened, and the water in the cold water tank automatically enters the heating water tank; when the water in the heating water tank reaches the set water level Under the action of water level or steam pressure, the connecting water valve automatically closes; the heat loss of the heating water tank is small, only when the pressure in the heating water tank is too high, the connecting water valve releases the pressure, which reduces the heat loss compared with the existing technology and has an energy-saving effect .

Description of drawings

Fig. 1 is a sectional view of the present invention.

Fig. 2 is a cross-sectional view of the water communicating valve of the present invention.

Fig. 3 is the second sectional view of the present invention.

Fig. 4 is the third sectional view of the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figure 1, an electric water heating device includes a cold water tank 1, a heating water tank 2, an electric heater 3, a water outlet pipe 4 and a faucet 5, the cold water tank 1 communicates with the heating water tank 2; it also includes a communicating water valve 6,

As shown in Figure 2, the communication water valve 6 includes a valve body 61 with a water guide, a float valve core 62 and a valve core bracket 63, a water guide groove 611 is arranged on the circumferential surface of the valve body 61, and the water guide groove 611 is connected to the water guide groove 611. The water guiding channel 612 is connected, the upper part of the water guiding channel of the valve body 61 has a valve seat 613, and the valve core support 63 is arranged on the bottom of the valve body 61; the said float valve core 62 is in the shape of a cylindrical spherical crown.

The float spool 62 is slidably matched with the water guide 612, and in a certain state, cooperates with the valve seat 613, and in a certain state, cooperates with the spool support 63, and the bottom of the float spool 62 is in contact with the valve core support 63. hole fit;

The valve body 61 is slidingly fitted with the water outlet 11 of the cold water tank 1 , and the water inlet of the heating water tank 2 is connected with the water outlet of the cold water tank 1 .

The flange 614 on the top of the valve body 61 is liquid-tight with the bottom plate at the water outlet 11 of the cold water tank 1 .

The float spool 62 may also be cylindrical or inverted truncated cone.

In the state of Figure 1, when water enters the heating water tank 2 from the cold water tank 1, the state of connecting the water valve 6, that is, the float valve core 62 cooperates with the valve core bracket 63; Figure 2 shows that the water level in the heating water tank 2 reaches the set value The state when required, the float spool 62 cooperates with the valve seat 613, so that the water in the cold water tank 1 cannot enter the heating water tank; The water port 11 moves, the valve body 61 moves into the cold water tank 1, the steam enters the water guide channel 612 from the hole on the valve core bracket 63, and overflows into the cold water tank 1 from the water guide groove 611 located in the cold water tank 1 to achieve pressure relief the goal of.

What has been described above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, which are also considered as the protection scope of the present invention. the

Claims (5)

1. an electric water-heating apparatus comprises cold water storage cistern, heating water tank, thermoelectric heating device, outlet pipe and tap, and cold water storage cistern is communicated with heating water tank; It is characterized in that: comprise that also one is communicated with water valve,

Said connection water valve comprises valve body, float spool and the spool support with water guide road, on the circumferential surface of said valve body guiding gutter is arranged, and guiding gutter is communicated with the water guide road, and valve seat is arranged at the top in the water guide road of valve body, and the spool support is arranged on the bottom of valve body;

Said float spool and water guide road are slidingly matched, and when the water level in heating water tank reached requiring of setting, the float spool cooperated with valve seat; When cold water storage cistern got into heating water tank, the float spool cooperated with the spool support at water;

The delivery port of valve body and cold water storage cistern is slidingly matched, and the water inlet of heating water tank is connected with the delivery port of cold water storage cistern.

2. a kind of electric water-heating apparatus according to claim 1 is characterized in that: said float spool is cylindrical.

3. a kind of electric water-heating apparatus according to claim 1 is characterized in that: said float spool is the rounding taper type.

4. a kind of electric water-heating apparatus according to claim 1 is characterized in that: it is spherical that said float spool is cylinder.

5. according to claim 1,2,3 or 4 described a kind of electric water-heating apparatus, it is characterized in that: the water tank bottom plate fitted seal at the delivery port place of valve body top flange and cold water storage cistern.

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