CN2934997Y - Pressure-free electric heating water-drinking machine - Google Patents

Abstract

The utility model provides a voltage free electrical heating water distributor. The utility model comprises a heating tank, an electric heater, a boiled water outlet pipe, a safe overflow valve, a tap water inlet pipe, a normal open disconnecting valve, a normal closed disconnecting valve, a limiting inlet pipe, a faucet, a temperature control unit and an enclosure. Regarding the utility model, structure of prior electrical heating water distributor is not changed; only a few general parts are added to achieve voltage free electrical heating function and the function that unboiled water can not be bled. The utility model eliminates the defect that mixture of cold water and hot water is bled, and is convenient to install and maintain, has low cost, can be accepted, popularized and promoted easily.

Description

A kind of pressureless electric heating drinking water machine

Technical field:

The utility model relates to a kind of water dispenser, and particularly a kind of pressureless electric heating drinking water machine belongs to the technical field that daily-use electrical appliance is made.

Background technology:

At present, the drinking-water heater of the tap water supply on the market is because faucet position height, can only lean on the pressure of running water could realize discharging water, the heating that makes water so also is to carry out under pressure, and the heating tank of this mode of heating belongs to pressure-vessel, cost height not only, and very dangerous; When heating, the hydraulic pressure in jar is by 0.2-0.3 MPa (2～3 kilograms per centimeter of tap water pipe line according to surveying and determination ²) pressure rises sharply more than the 1-2 MPa, safety overflow valve must be installed for this reason, and be set in about 0.7 MPa, like this, when the water when heating in the heating tank adds thermal expansion generation hydraulic pressure above 0.7 MPa, just discharge by safety overflow valve, prevent the continuous rising that continues of heating tank internal pressure, although it is so, this heating means are still pressure-vessel, still need to bear the pressure about 0.7 MPa, in case and the safety overflow valve fault, hidden danger is still arranged! In addition, because the phenomenon that the drinking-water heater of above-mentioned tap water supply also has the hot water or cold water to mix water supply, water is not opened the defective that yet can discharge water.

The utility model content:

The purpose of this utility model provides a kind of pressureless electric heating drinking water machine, it does not change the structure of former drinking machine apparatus, only increase the general device of several routines and realized that just no piezoelectricity heating function and water do not open and can not discharge water, solved the defective that the hot water or cold water who discharges water mixes water supply.

The purpose of this utility model is to have adopted by a kind of electric heating drinking water apparatus of following structure to realize, it is by heating tank, electric heater, the boiling water outlet pipe, safety overflow valve, the running water water inlet pipe, the open type stop valve, the closed type stop valve, the limit water inlet pipe, faucet, temperature controller and cabinet are formed, it does not change the structure of former drinking machine apparatus, just increase an open type stop valve at the water inlet pipe place, on heating tank, increase a closed type stop valve, still finish water supply by tap water pipe line pressure, the open type stop valve of water inlet pipe is closed simultaneously when the heating beginning, blocks into water; Closed type stop valve on the heating tank is opened simultaneously, makes to lead to atmosphere in the heating tank, has realized that so just heating tank does not have the heating of pressure.Heating tank of the present utility model is installed in the cabinet, running water water inlet pipe, open type stop valve, safety overflow valve, heating tank pipeline successively connect, electric heater is installed in the heating tank, the boiling water outlet pipe is installed in heating tank top, one end connects faucet, the other end is connected with the limit water inlet pipe, the limit water inlet pipe gos deep into certain-length in the heating tank, make it limit the interior inflow of heating tank and account for 80% of heating tank capacity, leave 20% air chamber and alleviate the heating tank internal pressure, heating tank still is provided with safety overflow valve for guaranteeing safety! The closed type stop valve is installed in heating tank top and connects open to atmosphere pipe, and temperature controller is according to adopting model to be installed in the relevant position.During work, because the stop valve at water inlet pipe place is an open type, running water just relies on the pipeline internal water pressure to enter in the heating tank until the height of limitting water inlet pipe.After this, connect power supply, electric heater is started working, and makes heating tank water inlet normally open solenoid valve get electric closing simultaneously! Stop the water inlet of heating tank, simultaneously the normally closed solenoid valve of heating tank opened, make the logical atmosphere of air chamber of heating tank internal upper part! Implement no pressure heating, air or the normally closed solenoid valve discharge that rises distilled edition heating tank air chamber waterborne of the thermal expansion in the heating tank from opening.If the pressure water of generation is discharged by safety overflow valve the normally closed solenoid valve fault! When being heated to design temperature, temperature controller cuts off the heating tank power supply, and heater quits work, and has realized again that water is not opened can not discharge water, and has solved the defective that the hot water or cold water who discharges water mixes water supply.The water inlet normally open solenoid valve is all opened simultaneously, and cold water tube road pressure enters heating tank bottom moisturizing and gives the boiling water motive force, and after this, heating tank is opened discharging valve at any time boiling water is provided.After water temperature was lower than design temperature in the heating tank, temperature controller was just connected power supply again, and electric heater is started working.Thereby continuous operation goes round and begins again.

The utility model is owing to adopt the device of said structure, make electric heating drinking water apparatus not change the structure of former drinking machine apparatus, only increase conventional general several devices and realized that just no piezoelectricity heating function and water do not open down and can discharge water, solved the defective that the hot water or cold water who discharges water mixes water supply.And install, easy to maintenance, cost is also lower, holds susceptible to user acceptancely, makes things convenient for penetration and promotion.

Description of drawings:

Below in conjunction with drawings and Examples the utility model is further specified:

Fig. 1 is that the structure of existing a kind of electric heating drinking water apparatus is launched schematic diagram, the limit water inlet pipe is not installed in its heating tank, topped up with water in the heating tank, like this, the thermal expansion hydraulic pressure that produces after the electric heater work makes pressurized in the heating tank, could discharge after having only pressure to reach the pressure that safety overflow valve sets, dangerous, do not open under water yet and can not limit jettison gear.

Fig. 2 is that the structure of a kind of pressureless electric heating drinking water machine of the present utility model is launched schematic diagram, and its only increases conventional general several parts and has realized that just no piezoelectricity heating function and water do not open and can not discharge water, and has solved the defective that the hot water or cold water who discharges water mixes water supply.

Among the figure: 1, heating tank, 2, electric heater, 3, the boiling water outlet pipe, 4, safety overflow valve, 5, the running water water inlet pipe, 6, cabinet, 7, open type stop valve, 8, closed type stop valve, 9, logical atmosphere takes over, 10, the limit water inlet pipe, 11, faucet, 12, temperature controller, Q, air chamber, arrow guide and are water (flow) direction.

The specific embodiment:

With reference to Fig. 2 is the structure expansion schematic diagram of a kind of pressureless electric heating drinking water machine of the present utility model.

Heating tank 1 of the present utility model is installed in the cabinet 6, running water water inlet pipe 5, open type stop valve 7, safety overflow valve 4, heating tank 1 pipeline successively connects, electric heater 2 is installed in the heating tank 1, boiling water outlet pipe 3 is installed in heating tank 1 top, one end connects faucet 11, the other end is connected with limit water inlet pipe 10, limit water inlet pipe 10 gos deep into certain-length in the heating tank 1, make it limit heating tank 1 interior inflow and account for 80% of this heating tank capacity, leave 20% air chamber and alleviate heating tank 1 internal pressure, the closed type stop valve is installed in heating tank 1 top and has takes over logical atmosphere, and temperature controller adopts SMD, is installed on the jar barrel at heating tank 1 middle part.During work, because the stop valve 7 at water inlet pipe place is an open type, running water just tube road internal water pressure enters in the heating tank 1 until the height of limitting water inlet pipe 10.After this, connect power supply, electric heater 2 is started working, and makes heating tank 1 water inlet normally open solenoid valve 7 get electric closing simultaneously! Stop the water inlet of heating tank 1, simultaneously the normally closed solenoid valve 8 of heating tank 1 opened, make the logical atmosphere of air chamber Q of heating tank 1 internal upper part! Execution does not have the heating of pressure, air or normally closed solenoid valve 8 discharges from opening that rise distilled edition heating tank air chamber Q waterborne of the thermal expansion in the heating tank 1.If the pressure water of generation is discharged by safety overflow valve 4 normally closed solenoid valve 8 faults! When being heated to design temperature, temperature controller 12 cuts off heating tank 1 power supply, and heater 2 quits work, water inlet normally open solenoid valve 7 is opened simultaneously, cold water tube road pressure enters heating tank 1 bottom moisturizing and gives the boiling water motive force, and after this, heating tank 1 is opened discharging valve 11 at any time boiling water is provided.After water temperature was lower than design temperature in the heating tank 1, temperature controller 12 was just connected power supply again, and electric heater 2 is started working.Thereby continuous operation goes round and begins again.

Claims (2)

1, a kind of pressureless electric heating drinking water machine, by heating tank, electric heater, the boiling water outlet pipe, safety overflow valve, the running water water inlet pipe, the open type stop valve, the closed type stop valve, the limit water inlet pipe, faucet, temperature controller and cabinet are formed, it is characterized in that: heating tank is installed in the cabinet, the running water water inlet pipe, the open type stop valve, safety overflow valve, heating tank pipeline successively connects, electric heater is installed in the heating tank, the boiling water outlet pipe is installed in heating tank top, one end connects faucet, the other end is connected with the limit water inlet pipe, and the limit water inlet pipe gos deep into certain-length in the heating tank.

2, according to the desired a kind of pressureless electric heating drinking water machine of claim 1, it is characterized in that: the limit water inlet pipe gos deep into the interior certain-length of heating tank should make the interior inflow of its qualification heating tank account for 80% of heating tank capacity.