CN103776169A

CN103776169A - Electric heater with noise elimination function and manufacturing method thereof

Info

Publication number: CN103776169A
Application number: CN201210401731.8A
Authority: CN
Inventors: 马天才
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-10-19
Filing date: 2012-10-19
Publication date: 2014-05-07

Abstract

The invention relates to an electric heater with a noise elimination function and a manufacturing method thereof. The electric heater with the noise elimination function is an aluminum casting with the cross section in a rectangular or round shape; the inside of the casting is provided with a heating body, the outside of the heating body is provided with a heat-resisting insulating layer, and the heating body is electrically connected with a frequency converter outside a heating furnace; the surface of the casting is provided with convex protrusions; one end of the casting is provided with a flange plate. The electric heater with the noise elimination function can achieve heating through an alternating current power supply as well as a direct current power supply; the electric heating body arranged inside the aluminum casting can be set as required; the aluminum casting is high in thermal conductivity and is provided with the protrusions on the outer wall, thereby radiating heat generated by the electric heating body easily to heat water rapidly and meanwhile achieving noise elimination.

Description

There are electric heater and the method for production thereof of silencing function

Technical field

The present invention relates to the heater of water, specifically a kind of take solar energy and the electric heating installation as the energy.

Background technology

Central heating has become the major way of city heating, although central heating has good environment protecting, because a large amount of thermal energy consumptions are on hot duct, caused the serious waste of the energy, and the changes in temperature effect of overall heating area is very unbalanced.For vast rural area, still continuing traditional heating mode, as local method is burnt carbon heating, burning boiler hot water heating etc., large, seriously polluted, the uneasy congruent problem of these method ubiquity energy consumptions.

The applicant's patent ZL200920034170.6, a kind of little, pollution-free, easy and simple to handle, safe and reliable " energy saving and environment friendly heating installation " of a kind of energy consumption that is applicable to rural area and meagrely-populated area disclosed, be made up of solar energy, electric heat water tank, warmer, water pump, electric heat water tank is communicated with solar energy and warmer respectively; In electric heat water tank, adopt electrical bar heating.When use, to injected water in solar energy; Water enters electric heat water tank after by solar energy heating, and water is subject to the continuation heating of electrical bar in electric heat water tank, is squeezed into warmer subsequently by water pump, has realized the effect to heating of house.This patent adopts solar energy to give heat to water, has effectively reduced energy consumption; Adopt electrical bar to heat again giving hot water, have that heating is fast, solar energy heating adverse influence can supplement rainy weather time.This heating installation is easy and simple to handle, pollution-free, safe and reliable, the use such as be particularly useful for the heating of indoor geothermal tube and have a bath, do washing, wash one's hands.The shortcoming that this patent exists is: adopt the mode of electrical bar heating, its conduction of heat to water generates is poor, and can produce larger noise, only can adopt AC electric-heating and can not adopt direct current to heat.

Summary of the invention

The object of the invention is to, overcome the deficiency that prior art exists, provide a kind of to the good heat conductivity of water generates, and can abate the noise preferably, be both applicable to alternating current and be also applicable to the electrically heated electric heater of direct current.

The present invention is achieved in that

The present invention's electric heater, is that a cross section is rectangle or the circular long foundry goods of aluminium matter, and foundry goods includes calandria, and calandria skin has heat-resisting insulating barrier; Cast(ing) surface is uneven---and be beneficial in water and fully dispel the heat; One end of foundry goods is fixed with ring flange---and this ring flange is fixed on furnace wall, and foundry goods is suspended in the interior water of stove.In power supply circuits, be connected to frequency conversion instrument, to produce good power savings, as: when starting when heater, need electricity consumption 2000W, and reach while giving fixed temperature when water temperature, heat radiation reality only needs power consumption 500W, now, start frequency conversion instrument---make the power consumption of heating be equal to or greater than true heat gain value, thereby reached the effect of power saving noise reduction.

Said calandria is electrically heated rod or resistance wire etc.

The outer field heat-resistant insulation material of said calandria can be the material such as porcelain bushing, high temperature resistant silica gel glass.

Said frequency conversion instrument, comprises manual frequency conversion instrument or frequency-variable electronic instrument.

The present invention's electric heater is manufactured and is formed like this:

1. design as required diameter and the length of calandria;

2. calandria is sleeved in the sleeve pipe of heat-resistant insulation material;

3. the calandria that is set with heat-resistant insulation material sleeve pipe is made to given shape, as bar-shaped or helical form; The two ends connecting power line of calandria;

4. the calandria of given shape is placed on to axis region among the casting die of given shape;

5. to cast aluminum liquid in casting die;

6. slough mould, at one end of calandria fixed flange;

7,, while use, on the power line of mounting flange (3) socket, connecting frequency conversion instrument (8).

The present invention's electric heater can adopt AC power heating, is also applicable to dc source heating; Because the electric heating body being placed in aluminium casting can be determined according to wattage size; Owing to being the aluminum material that thermal conductivity is good, and foundry goods is large, be roughness on outer wall, therefore the heat of foundry goods is more easily transmitted in water, water is rapidly heated, and is more conducive to reach the effect abating the noise.

Accompanying drawing explanation

The profile of Fig. 1, the embodiment of the present invention and structural representation;

The shape and structure schematic diagram of the calandria of Fig. 2, the present embodiment and frequency conversion instrument;

The flange plate structure schematic diagram of the calandria of Fig. 3, the present embodiment.

In figure, 1 device shell, 2 fin, 3 ring flanges, 4 calandrias, 5 high temperature insulation covers, 6 fixing holes, screw hole 6, electrical socket 7, frequency conversion instrument 8.

The specific embodiment

Below in conjunction with drawings and Examples, the present invention will be further described.

Fig. 1 has shown profile and the structure of the present embodiment

The electric heater of this embodiment, is a cuboid, the long 60cm of cuboid, and lateral cross section is 3cm × 8cm; On electric heater outer wall, there is evenly distributed projection---fin 2: the wide 4cm of groove, the high 2cm of fin.

Electric heater is an aluminium matter foundry goods, and the axis area arrangement at foundry goods center becomes the bar-shaped calandria 4 of " m shape ", and the two ends of calandria 4 are connected on the socket 7 of ring flange 3; Ring flange 3 is fixed on the right-hand member of electric heater.

Fig. 2 shows the calandria of the present embodiment and the shape and structure of frequency conversion instrument

Calandria 4 adopts the bar-shaped of " m shape " arrangement, and it is high temperature resistant silica gel glass fiber materials that Ningbo one hundred ultrahigh-temperature Materials Co., Ltd produces that the skin of this calandria adopts high temperature insulation cover 5.Calandria 4 is electrically connected with the frequency conversion instrument 8 outside stove.

Fig. 3 shows the flange plate structure of the calandria of the present embodiment

Calandria 4 two ends are fixed on the electrical socket 7 of ring flange 3.Ring flange 3 is fixed on one end of electric heater.On ring flange 3, have eight screw holes 6, screw can be fixed to ring flange 3 on the outer wall of heat supply stove by screw hole 6.

The method for production of the present embodiment electric heater is as follows:

1, design as required diameter and the length of calandria 4;

2, calandria 4 is sleeved in the sleeve pipe of heat-resistant insulation material;

3, the calandria 4 that is set with heat-resistant insulation material cover 5 is made bar-shaped;

4, the calandria of given shape 4 is placed on to axis region among the casting die of given shape;

5, to cast aluminum liquid in casting die;

6, slough mould, at one end of calandria fixed flange 3;

7,, while use, on the power line of mounting flange 3 sockets, connecting frequency conversion instrument 8.

Claims

1. the electric heater that has silencing function, is characterized in that: its cross section is rectangle or the circular long foundry goods of aluminium matter, and foundry goods includes calandria (4), and calandria (4) skin has high temperature insulation cover (5); Calandria (4) is electrically connected with frequency conversion instrument (8); The multiple fin of cast(ing) surface (2); One end of foundry goods is fixed with ring flange (3).

2. electric heater according to claim 1, is characterized in that: described calandria (4) is electrically heated rod or resistance wire.

3. electric heater according to claim 1, is characterized in that: the outer field heat-resistant insulation material of said calandria (4) is porcelain bushing or high temperature resistant silica gel glass.

4. the method for production that has the electric heater of silencing function, is characterized in that, manufactures and forms according to following method step:

1) design as required diameter and the length of calandria (4);

2) calandria is sleeved in high temperature insulation cover (5);

3) calandria (5) that is set with high temperature insulation cover (5) is made to given shape;

4) calandria of given shape (4) is placed on to axis region among the casting die of given shape;

5) to cast aluminum liquid in casting die;

6) slough mould, the two ends of calandria (4) are fixed on the socket of ring flange (3); Ring flange is fixed on the furnace wall of warming stove;

7), while use, on the power line of mounting flange (3) socket, connecting frequency conversion instrument (8).