CN2344711Y

CN2344711Y - Electric water heater

Info

Publication number: CN2344711Y
Application number: CN 98221230
Authority: CN
Inventors: 方和源; 连邦兴; 侯全舵; 邵竹祥
Original assignee: Qingdao Haier Microwave Products Co ltd; Haier Group Corp
Current assignee: Qingdao Haier Microwave Products Co ltd; Haier Group Corp
Priority date: 1998-05-19
Filing date: 1998-05-19
Publication date: 1999-10-20
Anticipated expiration: 2008-05-19

Abstract

The utility model discloses an electric water heater, comprising an inner lining, a heat insulating layer, an outer shell, a water inlet and a water outlet pipes and an electric heating pipe, wherein, the electric heating pipe comprises a flange plate, an electric heating wire, a descaling supporting frame and a thermostat lining sleeve. The electric heating wire is insulated and fixed in the electric heating tube whose tube segment extends out to the plate surface of the flange plate form a proper angle and winds on one side of the plate to form a parallel reversed-supporting 6-shaped supporting tube and a casing tube communicated with the tail end of the supporting tube; a frame extending tube for the thermostat lining sleeve is arranged between the double supporting tubes of the electric heating tube. The utility model has the advantages of having simple tubular structure, conforming to liquid thermodynamic principles and achieving higher thermal efficiency, and the utility model also has the advantages of long service life, energy saving, accurate and timely water temperature control and safe using performance enhancing.

Description

Electric heater

The utility model relates to the improvement of water heater, especially a kind of electric heater, and it belongs to the daily electrical home appliance equipment technical field.

Commercially available electric heater, electric heating tube wherein generally all are straight type heating tube or ceramic heat pipe.This heating tube is mainly used in the electric heater of vertical inner bag installation.This heating tube is used for the horizontal type inner bag, and its thermal efficiency is lower, is unfavorable for heat conduction and thermal convection current.Yet the electric heater that needs the horizontal type inner bag in the daily life, this certainly will cause the improvement to electric heating tube.

The purpose of this utility model is exactly the higher electric heater of a kind of thermal efficiency of design, to adapt to the electric heater requirement of horizontal type inner bag.This pipe is simple in structure, and moulding is reasonable, is beneficial to heat and conducts heat and thermal convection current, and is easy to manufacture, easy for installation.

Task of the present utility model is that following technical scheme is finished; developed a kind of electric heater; it comprises: horizontal inner bag; heat-insulation layer; outer box shell, inlet tube and outlet tube and electric heating tube; be provided with the mouth of pipe at the middle part of horizontal inner bag and be through near the inwall of courage top outlet pipe; on this courage cover flange dish mounting, be sealed and installed with the ring flange of electric heating tube; this dish is also connected by lead and earth leakage protective device, is provided with water inlet pipe on the courage wall below the electric heating tube in being suspended from this courage chamber admittedly and returns water retaining bowl.Described electric heating tube, it comprises: ring flange, electric wire filament, the scale removal support, the temperature controller bushing pipe, this electric wire filament is that insulation is fixed in the heating muff, the input of this pipe, output two ends are separately fixed on the ring flange, and the pipeline section of this pipe stretches out in this dish card with suitable angle, and prop up the figure six arm and be provided with communicating pipe at the pipe end in the side ring winding formation parallel double of this dish; What be provided with the temperature controller bushing pipe between the figure six double branch pipe of the runs parallel of this pipe stretches the frame pipe, and this Guan Yiduan is fixed on the ring flange.

This electric heating tube, described heating muff, it stretches out the suitable α angle of ring flange card, and in 15-165 degree scope, the frame pipe of stretching of temperature controller bushing pipe also correspondingly stretches out this dish card to manage corresponding β angle with this.

Electric heater of the present utility model, its advantage is: prop up the sleeve pipe that figure six arm end is provided with communicating pipe owing to designed parallel double, according to the thermodynamic fluid principle, make heating muff can be arranged in the rational position of inner bag, improve the heat conduction and the thermal convection current of heating muff convection cell, thereby improved the thermal efficiency.This heating tube has adopted magnesium rod scale removal support, is beneficial to timely scale removal, has improved the service life of this heating tube.The frame pipe of stretching of temperature controller bushing pipe is followed the trend of heating muff and orientation.Be beneficial to timely and accurately the control water temperature.In time outage prevents dry combustion method, has strengthened safe application performance.

The embodiment of electric heating tube of the present utility model is described below in conjunction with the accompanying drawings:

Fig. 1 is the electric heating tube structural front view of electric heater.

Fig. 2 is the electric heating tube structure right view of electric heater.

Fig. 3 is the structure cutaway view of electric heater.

Electric heating tube referring to Fig. 1,2,3, the electric heater made includes: ring flange 1, the electric wire filament 2, be equipped with magnesium rod 3 ' scale removal support 3.Temperature controller bushing pipe 7 '.The electric wire filament 2 of this electric heating tube is that insulation is fixed in the electrical heating sleeve pipe 4.The input 8 of this pipe 4, output 9 are separately fixed on the ring flange 1, the pipeline section of this pipe 4 be suitable for horizontal type inner bag heating efficiently 130 degree α angles tilt and coil 1 one sides in this, and ring twines and constitutes parallel double and prop up the figure six arm.The heating muff 4 that by communicating pipe 6 double branch pipe is communicated with into perforation again in the end of double branch pipe.Between the figure six arm of the runs parallel of this pipe 4, be provided with the temperature controller bushing pipe 7 of 1 one-tenth 115 degree of ring flange β angle ' stretch frame pipe 7, an end of this pipe 7 is fixed on the ring flange 1.The input 8 and the output 9 of this pipe 4 turn on the power line by lug plate 5 respectively.

Make electric heater, it comprises: horizontal inner bag 10, and polyurethane thermal insulation layer 11, outer box shell 12, water inlet pipe 13 returns water retaining bowl 14, outlet pipe 15, electric heating tube 16.The outlet pipe 15 that is provided with at the middle part of horizontal inner bag 10, its mouth of pipe are through to inwall vicinity, courage top.On these courage 10 cover flange dish mountings 17, be sealed and installed with the ring flange 1 of electric heating tube 16.This dish 1 is also connected by lead 18 and earth leakage protective device 19.This water inlet pipe 13 is located on the courage wall of electric heating tube 16 belows, and this is managed 13 mouths of pipe tops and also is provided with and returns water retaining bowl 14.On scale removal support 3, be equipped with magnesium rod 3 '.

Claims

1, a kind of electric heater; it comprises: horizontal inner bag; heat-insulation layer; outer box shell, inlet tube and outlet tube and electric heating tube; it is characterized in that: be provided with the mouth of pipe at the middle part of horizontal inner bag and be through near the inwall of courage top outlet pipe; be sealed and installed with the ring flange of electric heating tube on this courage cover flange dish mounting, this dish is also connected by lead and earth leakage protective device, is provided with water inlet pipe on the courage wall below the electric heating tube in being suspended from this courage chamber admittedly and returns water retaining bowl.

2, according to the described electric heater of claim 1, it is characterized in that: described electric heating tube, it comprises: ring flange, the electric wire filament, scale removal support, temperature controller bushing pipe, this electric wire filament is that insulation is fixed in the heating muff, the input of this pipe, output two ends are separately fixed on the ring flange, and the pipeline section of this pipe stretches out in this dish card with suitable angle, and prop up the figure six arm and be provided with communicating pipe at the pipe end in the side ring winding formation parallel double of this dish; What be provided with the temperature controller bushing pipe between the figure six double branch pipe of the runs parallel of this pipe stretches the frame pipe, and this Guan Yiduan is fixed on the ring flange.

3, according to claim 1 or 2 described electric heaters, it is characterized in that: described heating muff, it stretches out the suitable α angle of ring flange card, and in 15-165 degree scope, the frame pipe of stretching of temperature controller bushing pipe also correspondingly stretches out this dish card to manage corresponding β angle with this.