CN2457503Y

CN2457503Y - Electric water heater

Info

Publication number: CN2457503Y
Application number: CN 00240206
Authority: CN
Inventors: 何伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-11-15
Filing date: 2000-11-15
Publication date: 2001-10-31
Anticipated expiration: 2010-11-15

Abstract

The utility model discloses an electric water heater, which mainly solves the problems of long preheating time and large power consumption of the existing water heater. The electric water heater of the utility model is that a water inlet and outlet pipe of circulating water is arranged between a water tank and a casing; one end of the water inlet and outlet pipe of circulating water is arranged in the water tank; the other end of the water inlet and outlet pipe of circulating water extends out of the casing to be connected with a heater. Because the water inlet and outlet pipe of circulating water is arranged on the water tank, the water inlet and outlet pipe of circulating water is connected with the heater to form a circulation loop and other heat energy with higher heating speed can be used for heating the heater; water in the water tank is heated by an electric heating device in the electric water heater and the heater, and therefore, preheating time is shortened and power consumption can be reduced.

Description

A kind of electric heater

The utility model relates to a kind of electric heater.

Electric heater does not have the gas leak problem, and security is higher, and increasing user selects to use electric heater.Existing electric heater has the water tank of a fixed volume, converts electrical energy into heat energy by resistance, uses for the user behind the water in the heating water tank; The electric heater of this structure only uses electric energy, has only single source, because electrical heating speed is slower, the user needs the wait long period that the water in the water tank is carried out preheating after opening power; In use, along with the consumption of hot water and the injection of cold water, be difficult to guarantee that water temperature reaches customer requirements; And this electric heater power consumption is big, the waste electric energy, because the electricity charge are higher, user's use cost is also higher.

The purpose of this utility model is to provide a kind of electric heater, has multiple thermal source, can shorten preheating time, is beneficial to the water temperature that keeps in the use, and saves energy reduces customer using cost.

A kind of electric heater described in the utility model, include housing, water tank, water inlet, delivery port and electric calorifie installation, the recirculated water turnover pipe that runs through water tank wall and housing wall is housed between water tank and housing, one end of recirculated water turnover pipe is in water tank, and the other end stretches out outside the housing and is connected with heater.

Because recirculated water turnover pipe is housed on water tank, this recirculated water turnover pipe links to each other with heater and forms soft circulation circuit, can use other as firing rates such as coal, coal gas, combustion gas faster heat energy heater is heated, by the water in electric calorifie installation in the electric heater and the common heating water tank of heater, thereby shortened preheating time, be beneficial to and guarantee that in use water temperature can satisfy user's needs, and can reduce power consumption, saves energy, can utilize the waste heat of other thermal source such as honeycomb briquette, reduce user's use cost.

Fig. 1 is the schematic diagram of electric heater described in the utility model.

Embodiment 1 is as the A portion among Fig. 1

A kind of electric heater described in the utility model, include housing 14, water tank 3, water inlet 1, delivery port 2 and electric calorifie installation, at water tank 3 and 14 of housings the recirculated water turnover pipe 4,5 that runs through water tank wall and housing wall is housed, one end of recirculated water turnover pipe 4,5 is in water tank 3, the other end stretches out housing 14 outer and straight couplings, one end of water pipe 13 is connected with straight coupling, and the other end is connected with the joint 11 of heater 8; Heater 8 is dish, in the bottom of heater water cavity 9 is arranged, and between water cavity 9 upper walls and heater 8 upper walls thermal insulation layer 10 is housed, and joint 11 passes the upper wall and water cavity 9 upper walls of heater 8, and its free end is positioned at water cavity 9; People's water inlet 1 injects water, water flows in the water cavity 9 of dish-shaped heater 8 by recirculated water turnover pipe 4,5 and straight coupling, water pipe 13 and joint 11, dish-shaped heater 8 is placed on the thermals source such as coal stove, gas burner or gas furnace, water in the water cavity 9 is heated, after the water temperature in the water cavity 9 rises, with water generates thermal cycle in the water tank 3 and carry out heat exchange, thus the water in the heating water tank 3.

Embodiment 2 is as the B portion among Fig. 1

Described heater is for being enclosed within the ring pipe of honeycomb briquette periphery, at the two ends of ring pipe joint 12 is housed, joint 12 is connected with water pipe 13, ring pipe heater 7 is enclosed within outside the honeycomb briquette, because honeycomb briquette is a continuous burning, can utilize the waste heat of honeycomb briquette that the water in the ring pipe heater 7 is continued heating, thereby reach the purpose of the water in the heating water tank 3; Other is identical with embodiment 1.

Embodiment 3 is as Fig. 1

Described recirculated water turnover pipe 4,5 connects three-way connection 6, and an end of water pipe 13 is connected with three-way connection 6, and the other end is connected with the joint 11,12 of ring pipe heater 7, dish-shaped heater 8, uses two or more heater simultaneously; Other is identical with embodiment 1,2.

Adopt the very power saving of electric heater of this structure, power consumption can be reduced to about 10 of existing electric heater power consumption, also can be reduced to about 30 percent of existing electric heater preheating time preheating time.

Claims

1, a kind of electric heater, include housing (14), water tank (3), water inlet (1), delivery port (2) and electric calorifie installation, it is characterized in that: the recirculated water turnover pipe (4 that runs through water tank wall and housing wall is housed between water tank (3) and housing (14), 5), recirculated water turnover pipe (4,5) a end is in water tank (3), and the other end stretches out outside the housing (14) and is connected with heater.

2, a kind of electric heater according to claim 1, it is characterized in that: described heater is dish-shaped heater (8), in its bottom water cavity (9) is arranged, between water cavity (9) upper wall and heater (8) upper wall thermal insulation layer (10) is housed, joint (11) passes the upper wall and water cavity (9) upper wall of heater (8), and its free end is positioned at water cavity (9).

3, a kind of electric heater according to claim 1 is characterized in that: described heater is ring pipe heater (7), and joint (12) is arranged at the two ends of ring pipe.

4, a kind of electric heater according to claim 1 is characterized in that: described recirculated water turnover pipe (4,5) connects two with upper heater, perhaps only connects a heater.