CN106610108A

CN106610108A - An air source electric water heater having an electric heating tube with an electric heating wire placed in a non-metal tube

Info

Publication number: CN106610108A
Application number: CN201510716732.5A
Authority: CN
Inventors: 刘运柳; 刘成
Original assignee: Guangdong Shunde Guangsheng Electrical Appliance Co Ltd
Current assignee: Guangdong Shunde Guangsheng Electrical Appliance Co Ltd
Priority date: 2015-10-24
Filing date: 2015-10-24
Publication date: 2017-05-03

Abstract

The invention provides an air source electric water heater having an electric heating tube with an electric heating wire placed in a non-metal tube. The electric water heater is characterized in that a water outlet pipe is provided with a rapid heating device capable of heating water immediately when the water flows by; an outer shell of the electric heating tube is made of non-metal material; one end or two ends of the electric heating tube are provided with cold leads (1); the electric heating wire (3), and magnesia powder, a non-metal insulator or air (4) are placed in a straight-through or blind hole non-metal tube (7) or (8); the cold leads (1) extend out of the tube via non-metal plugs (6); the electric heating wire (3) is installed in air in the non-metal tube (7) or (8) for dry burning; a circuit breaker (12) is installed at the lower portion of an open end of the straight-through non-metal tube (7) or blind hole non-metal tube (8); one end of the circuit breaker is two bare isolated metal wires and the other end is connected with a control element of a control circuit board; when the two metal wires meet water and are turned on at the same time, the control element is notified to break the circuit.

Description

Air source electric heater equipped with the electrothermal tube for having heating wire in non-metallic pipe

Technical field

The present invention relates to air source electric heater, relates generally in electric heater, what is adopted is immersed in water There is the electrothermal tube of heating wire in non-metallic pipe.

Background technology

The electrothermal tube being currently used in air source electric heater, 100% is by technical standard JB/T4088-1999《Day Use tubular electrothermal element》Or JB/T2379-1993《Tubular metal electric heating element》The tubular electrothermal element of production, Be " with metal tube as shell, heating alloy make heater, at one end or two ends have eduction rod, in metal Closely knit magnesium oxide powder dielectric is loaded in pipe, to fix the element of heater；" it is existing commonly using Heating；This metal shell heating, is completely sunk in the water, and after long-time use, can bear water Dirt, reduces heating efficiency, and corrosion punctures, and makes water powered, is world-famous puzzle.

The content of the invention

The purpose of the present invention is that existing air source electric heater is improved.

The present invention technical measures be：Water tank by metal or nonmetallic making, built with having electric heating in non-metallic pipe The electrothermal tube 11 of silk；Outlet pipeline is provided with the out-of-date fast heating device 20 for heating water of current；The electric heating Pipe is built with heating wire 3 and magnesium oxide powder or air 4, and by electric heating in straight-through non-metallic pipe or shell 7 Silk 3 is fixed in non-metallic pipe 7, is installed eduction rod 1 by nonmetallic plug 6 at the two ends of heating wire, is stretched Outside outlet pipe, becoming has the electrothermal tube 11 of heating wire in non-metallic pipe；Or closing becomes the non-gold of blind hole at one end Category pipe or shell 8 are built with heating wire 3 and magnesium oxide powder or air 4；Install at the two ends of heating wire 3 and draw Go out rod 1, and heating wire 3 is bent to into U-shaped, make two eduction rods 1 at one end, by nonmetallic plug 6 Outside protruded tube, becoming has the electrothermal tube 11 of heating wire in non-metallic pipe；The heating wire 3 is installed in nonmetallic In pipe 7 or 8 in air, dry combustion method；Communicate with the air outside pipe in pipe.

Simultaneously in 8 open end bottom of straight-through non-metallic pipe 7 or blind hole non-metallic pipe, equipped with chopper 12, institute Chopper is stated, is the control element that one end is two tinsels that are exposed and isolating, the other end and control board Connection, when two one metal wires run into water conducting simultaneously, notes that control element, disconnects circuit.

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

The invention has the beneficial effects as follows air source electric heater is using the nonmetallic electrothermal tube for having heating wire inside the Pass, soak Duck in drink not scaling, and heating never corrodes and punctures, and will not leak electricity.

Description of the drawings

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, the electrothermal tube for having heating wire in blind hole non-metallic pipe；

Fig. 5 to Fig. 7 is equipped with non-metallic pipe the air source electric heater structural representation of the electrothermal tube for having heating wire Figure；

Specific embodiment

In accompanying drawing：Eduction rod claims terminal 1, sealing ring or high-temp glue 2, heating wire 3, magnesia powder or non- Outside metal-insulator thing or air 4, metal or non-metallic pipe 5, nonmetallic plug 6, straight-through non-metallic pipe or title Shell 7, blind hole non-metallic pipe claim in shell 8, heater 9, non-metallic insulation spacer 10, non-metallic pipe Have the electrothermal tube 11 of heating wire, chopper 12, metal or nonmetallic water tank 15, shell 16, blind flange 17, The out-of-date i.e. water-heating device 20 of mounting seat 18, friction top 19, current, the container 21, air for having intake-outlet Source host 22.

Fig. 1 to Fig. 4 is the employing non-metallic pipe that there is eduction rod at filled one end or two ends in central electric water heater Inside there is the electrothermal tube of heating wire, there is nonmetallic plug 6 termination, and eduction rod 1 is by outside 6 protruded tube of plug, non- There is 1 or more heating wire 3 in metal shell, between heating wire, have non-metallic insulation thing 10 to be isolated；It is non- In metal shell, there are magnesia powder or non-metallic insulation thing or air 4, what Fig. 4 heating wire was often enclosed is relatively large in diameter Tube wall can be pressed close to.

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

To realize double insulation, one layer of non-metallic pipe can be set between heating wire 3 and non-metallic pipe 7 or 8 again.

Fig. 5 to Fig. 7 is equipped with non-metallic pipe the air source Water tank for electrical water heater of the electrothermal tube 11 for having heating wire 15 structure chart, outlet pipeline are provided with the out-of-date i.e. water-heating device 20 of current, are having the appearance of intake-outlet Electrothermal tube 11 is housed in device 21, electrothermal tube must be connected during water outlet；Air source main frame 22 in figure, independently can set Put, it is also possible to be combined into one with water tank, this kind of air source water heater is applied to any cold climate conditions, With air source host 22 during cop ＞ 2, heat, as cop ＜ 1.5, automatic replacing is worked with electrothermal tube.

Claims

1. the air source electric heater equipped with the electrothermal tube for having heating wire in non-metallic pipe, it is characterised in that：Water tank By metal or nonmetallic making, in built-in non-metallic pipe, there is the electrothermal tube (11) of heating wire：It is in non-metallic pipe Or claim, in shell (7), equipped with heating wire (3) and magnesia powder or non-metallic insulation thing or air (4), to draw Go out rod (1) to stretch to outside pipe by nonmetallic plug (6), become the electrothermal tube (11) for having heating wire in non-metallic pipe； Or in blind hole non-metallic pipe (8) built with heating wire (3) and magnesia powder or non-metallic insulation thing or air (4), heating wire curves U-shaped in pipe, makes 2 eduction rods (1) at one end, and eduction rod (1) is by non- Metal plug (6) is stretched to outside pipe, becomes the electrothermal tube (11) for having heating wire in non-metallic pipe；The heating wire (3) in the air in being installed in non-metallic pipe (7) or (8), dry combustion method.

2. the air source electric hot water of the electrothermal tube for having heating wire is housed in non-metallic pipe according to claim 1 Device, it is characterised in that：Outlet pipeline is provided with the out-of-date i.e. water-heating device (20) of current, is having Inlet and outlet water Electrothermal tube (11) is housed in the container (21) of mouth.

3. the air source electric hot water of the electrothermal tube for having heating wire is housed in non-metallic pipe according to claim 1 Device, it is characterised in that：In straight-through non-metallic pipe (7) or blind hole non-metallic pipe (8) open end bottom, it is equipped with Chopper (12), the chopper, be one end be two it is exposed and isolate tinsels, the other end with control The control element connection of circuit board.