CN205641470U

CN205641470U - Central electric water heater who has electrothermal tube of heating wire in non -metallic pipe is equipped with

Info

Publication number: CN205641470U
Application number: CN201520843143.9U
Authority: CN
Inventors: 刘运柳; 刘成
Original assignee: Guangdong Shunde Guangsheng Electrical Appliance Co Ltd
Current assignee: Guangdong Guangsheng Limited by Share Ltd
Priority date: 2015-10-24
Filing date: 2015-10-24
Publication date: 2016-10-12
Anticipated expiration: 2025-10-24

Abstract

Central electric water heater who has electrothermal tube of heating wire in non -metallic pipe is equipped with, be equipped with the electric water heater that rivers add hydrothermal fast heat facility after the set time promptly on the outlet pipe way, the shell of used electrothermal tube is non -metallic material, it is in through type or blind hole non -metallic pipe (7) or (8) that its one end or two ends have the electrothermal tube of drawing stick (1), heating wire (3) are equipped with, also have magnesia or nonmetal insulating thing or air (4), it stretches to the outside of tubes through nonmetal end cap (6) to draw forth stick (1), heating wire (3) are dress dry combustion methods in the air in non -metallic pipe (7) or (8), open the end lower part in direct non -metallic pipe (7) or blind hole non -metallic pipe (8) simultaneously, be equipped with circuit breaker (12), the circuit breaker is that one end is two exposed and keep apart wires, and the other end and control circuit board's controlling element is connected, meets water simultaneously when two wires and switches on, just infories controlling element, and messenger's circuit breaks off.

Description

Central electric water heater equipped with the electrothermal tube having heating wire in non-metallic pipe

Technical field

The present invention relates to central electric water heater, relate generally in Water tank for electrical water heater, used is immersed in the non-metallic pipe in water the electrothermal tube having heating wire.

Background technology

The electrothermal tube being currently used in central electric water heater, 100% is the tubular electrothermal element produced by technical standard JB/T4088-1999 " daily tubular electrothermal element " or JB/T2379-1993 " tubular metal electric heating element ", be " with metal tube as shell, heating alloy make heater; at one end or two ends have eduction rod; load closely knit magnesium oxide powder dielectric in metal tube, with the element of fixing heater；" it is the existing heating commonly used；This metal shell heating, is completely sunk in the water, after long-time use, meeting scaling, reduces heating efficiency, and corrosion punctures, and makes water charged, is world-famous puzzle.

Summary of the invention

It is an object of the invention to existing central electric water heater is improved.

The technical measures of the present invention are: water tank, by there being the electrothermal tube 11 of heating wire in metal or the built-in non-metallic pipe of nonmetal making, is provided with the out-of-date fast heating device 17 i.e. adding hot water of current at outlet pipeline.

Electrothermal tube used is built with heating wire 3 and magnesium oxide powder or air 4 at straight-through non-metallic pipe 7, and heating wire 3 is fixed in non-metallic pipe 7, eduction rod 1 is installed at the two ends of heating wire and passes through nonmetal plug 6, outside protruded tube, in becoming non-metal shell, have the electrothermal tube 11 of heating wire；Or at one end close and become blind hole non-metallic pipe 8 built with heating wire 3 and magnesium oxide powder or air 4；By nonmetal plug 6, the blind hole non-metallic pipe other end is blocked, eduction rod 1 is installed at the two ends of heating wire 3, and heating wire 3 is bent to U-shaped in pipe, make two eduction rods 1 at one end, by nonmetal plug 6 protruded tube outside, have the electrothermal tube 11 of heating wire in becoming non-metal shell；Described heating wire 3, is dry combustion method in the air in straight-through non-metallic pipe 7 or blind hole non-metallic pipe 8.

Simultaneously in straight-through non-metallic pipe 7 or blind hole non-metallic pipe 8 open end bottom, equipped with chopper 12, described chopper, be one end be two tinsels that are exposed and that isolate, the other end is connected with the control element of control circuit plate, when two one metal wires simultaneously suffer water conducting, note that control element, make circuit disconnect.

Described non-metallic pipe 7 or 8, first-selected quartz glass tube, either blind hole pipe or straight pipe, internal heating wire has one or more, isolates with non-metallic insulation thing 10, prevent short circuit between heating wire.

The out-of-date i.e. water-heating device 17 of described current, is equipped with electrothermal tube 11 in the container 18 have intake-outlet, and the out-of-date electrothermal tube of current is i.e. connected.

The invention has the beneficial effects as follows that central electric water heater uses in non-metal shell the electrothermal tube having heating wire, be immersed in water not scaling, heating corrodes never and punctures, and will not leak electricity.

Accompanying drawing explanation

Fig. 1 is that two ends have eduction rod, has the electrothermal tube of heating wire in non-metallic pipe；

Fig. 2 to Fig. 4 is that one end has eduction rod, has the electrothermal tube of heating wire in blind hole non-metallic pipe；

Fig. 5 to Fig. 7 is equipped with the central electric water heater structural representation of non-metal shell electrothermal tube；

Detailed description of the invention

In accompanying drawing, eduction rod or have the electrothermal tube 11 of heating wire, chopper 12, metal or nonmetal water tank 15, shell 16, the out-of-date i.e. water-heating device 17 of current in claiming terminal 1, sealing ring or high-temp glue 2, heating wire 3, magnesia powder or air 4, nonmetal plug 6, straight-through non-metallic pipe 7, blind hole non-metallic pipe 8, non-metallic insulation spacer 10, non-metal shell, have the container 18 of intake-outlet.

Fig. 1 to Fig. 4 is the employing non-metal shell electrothermal tube that one end filled in central electric water heater or two ends have eduction rod, there is nonmetal plug 6 termination, eduction rod 1 is by, outside plug 6 protruded tube, having 1 or above heating wire 3, have non-metallic insulation thing 10 to be isolated between heating wire in non-metal shell；In non-metal shell, having magnesia powder or non-metallic insulation thing or air 4, the diameter that Fig. 4 heating wire often encloses presses close to tube wall, can be bonded on tube wall by heating wire.

Due to heating wire 3 can dry combustion method in atmosphere, therefore can be directly installed in non-metal shell, if fill with magnesia powder, the position of heating wire will not be moved.

Fig. 2 to Fig. 4 is in blind hole non-metallic pipe 8, loads heating wire, and heating wire is dry combustion method in the air in non-metallic pipe, this kind of structure, and the eduction rod in blind hole one end to bend and to turn back to the other end.

For realizing double insulation, one layer of non-metallic pipe can be set again between metal or non-metal electric heating silk 3 and straight-through non-metallic pipe 7 or blind hole non-metallic pipe 8.

Fig. 5 to Fig. 7 has the central heater structure chart of the electrothermal tube 11 of heating wire in being equipped with non-metal shell, Fig. 5, Fig. 7 outlet pipeline is provided with the out-of-date i.e. water-heating device 17 of current, being equipped with electrothermal tube 11 in the container 18 have intake-outlet, during water outlet, electrothermal tube must be connected；Fig. 6 middle and upper part arranges an electrothermal tube 11, equipped with multi-form electrothermal tube in Fig. 7.

Claims

1. equipped with the central electric water heater of the electrothermal tube having heating wire in non-metallic pipe, it is characterized in that: water tank is by metal or nonmetal making, the electrothermal tube (11) of heating wire is had: be in straight-through non-metallic pipe (7) in built-in non-metallic pipe, equipped with heating wire (3) and magnesia powder or air (4), eduction rod (1) stretches to outside pipe by the nonmetal plug in two ends (6), has the electrothermal tube (11) of heating wire in becoming non-metal shell；Or at blind hole non-metallic pipe (8) built with heating wire (3), also have magnesia powder or air (4), heating wire curves U-shaped in pipe, make 2 eduction rods (1) at one end, and stretch to outside pipe by the nonmetal plug (6) of unlimited one end, there is the electrothermal tube (11) of heating wire in becoming non-metal shell；Described heating wire (3) is dry combustion method in air in straight-through non-metallic pipe (7) or blind hole non-metallic pipe (8).

The most according to claim 1 equipped with the central electric water heater of the electrothermal tube having heating wire in non-metallic pipe, it is characterized in that: outlet pipeline is provided with the out-of-date i.e. water-heating device (17) of current, is equipped with electrothermal tube (11) in the container (18) having intake-outlet.

The most according to claim 1 equipped with the central electric water heater of the electrothermal tube having heating wire in non-metallic pipe, it is characterized in that: in straight-through non-metallic pipe (7) or blind hole non-metallic pipe (8) open end bottom, equipped with chopper (12), described chopper, be one end be two tinsels that are exposed and that isolate, the other end is connected with the control element of control circuit plate.