CN205208942U - Metal water tank electric boiler side heating formula leads directly to light wave electric heating tube mounting structure - Google Patents

Abstract

Metal water tank electric boiler side heating formula leads directly to light wave electric heating tube mounting structure, on metal water tank 1's straightway, the welding has the screw or has the joint 2 of flange, with 3 dresses of metal sleeve in connect 2 hole with the axle center, there is a sealing member 4 at both ends, compress tightly with nut or lid 5, 6 both ends of electrothermal tube have mica sheet 7 and nonmetal support 8 to install in the air 11 in metal sleeve 3, glass manages 9 electrothermal tube 6 and metal sleeve have the one deck between 3 in the middle of, metal sleeve 3 and middle glass pipe between 9 the gapped hot -air that receives can flow, the mica sheet 7 and the porose or clearance of nonmetal support 8 at 6 both ends of electrothermal tube communicate with each other with the outside air.

Description

Metal water tank boilers heated electrically heater-type leads directly to Optical wave electric heating tube mounting structure

Technical field

The present invention relates to electric boiler, relate generally to the mounting structure of optical wavelength radiation heating electrothermal tube.

Background technology

Electric boiler is electric water heater, and heating power is from several kilowatts to hundreds of kilowatt, similar with the method for electric water heater heating water in essence; The patent of invention of Chinese Guangdong Shuande Guang Sheng electrical equipment limited company numbers 200810091347.6 and patent application 2009101315082.X are electric heating tube side heat type heating.

Another number of patent application 201510261254.3 Optical wave electric heating tube has two kinds: one to be semi-conductor electricity heat pipe 6-1, be by semiconductor heating material, be coated in glass tube inner wall surface, form one deck conducting film, and have binding post, infra-red radiation and heat energy can be produced after energising; Two is luminous energy electrothermal tube 6-2, is at the in-built carbon fiber of glass tube or metal heating wire, produces infra-red radiation and heat energy after energising; Below be all to electrothermal tube around water heat, be also referred to as heater-type, its mounting means is welded with metal water tank by metal sleeve, ensures tank seal, and by electrothermal tube by mounting mat, be placed in sleeve pipe, find following defect in practice:

1. because electrothermal tube is glassware, long again, in long-distance transport, electrothermal tube glass breakage occurred, and heating wire still can be energized work, likely make water-band electricity by metal sleeve; Meanwhile, meeting scaling;

2. mounting mat is for a long time by after high warm, and produce carbonization, electrothermal tube departs from center, produces displacement;

3. two ends sealing, expands after inner air heating, is squeezed by mounting mat, even draw bad electrothermal tube.

Summary of the invention

The object of the invention is to carry out improvement project for above-mentioned defect to electric boiler, optical wave heating method is applied on boilers heated electrically.

Technical measures of the present invention are:

One, on the semicircular end-face of water tank 1 top porose 15, it there is blind flange 16, blind flange 16 is installed the pouring-in utensil 17 of the out-of-date i.e. heating water of current; The pouring-in utensil 17 of the out-of-date i.e. heating water of described current, being one has the in-built electrothermal tube 6 of the closed container 18 of intake-outlet, and when discharging water, electrothermal tube 6 is connected, and to water heating, disconnects when closing water.

Two, on the straightway of metal water tank 1 casing, welding is threaded the joint of (comprising inside/outside screw thread) or the joint 2 with flange, by metal or non-metallic casing 3, be contained in the endoporus of concentric joint 2, there is seal 4 at two ends, compress with nut or lid 5, guarantee that seal 4 makes water tank 1 water-tight; Electrothermal tube 6 has mica sheet 7 and non-metal frame 8 by two ends, is arranged in the air in metal sleeve 3; One deck intermediate glass pipe is had between electrothermal tube 6 and metal sleeve 3; Have gap between metal sleeve 3 and intermediate glass pipe, two ends high-temperature seal adhesive local cling, do not stop two-layer between be heated after air flowing; The mica sheet 7 at electrothermal tube 6 two ends and non-metal frame 8 is porose or gap, communicates with outside air; With glass tube alternative metals sleeve pipe 3, then do not need glass bushing, another feature is electrothermal tube 6 is be contained in air 11, when filling water in water tank 1, does not discharge water and can take out or install.

The invention has the beneficial effects as follows that heating wire is contained in glass tube that electrothermal tube integral installation is in air 11, also have one deck glass tube outside electrothermal tube, security is very high; Simultaneously when electrothermal tube damages, also can change when filling water in water tank.

Accompanying drawing explanation

Fig. 1 Fig. 2 is the electric boiler inner water tank structural representation that electrothermal tube is housed;

Fig. 3 Fig. 4 is Fig. 1 Fig. 2 erection joint Local map;

Detailed description of the invention

In accompanying drawing, water tank 1, have screw thread or flanged joint 2, metal or non-metallic casing 3, seal 4, nut or lid 5, electrothermal tube 6 (comprising semi-conductor electricity heat pipe or luminous energy electrothermal tube), mica sheet 7, non-metal frame 8, air 11, hole 15, blind flange 16, the out-of-date i.e. heating water of current pouring-in utensil 17, have the hermetically sealed container 18 of intake-outlet.

In Fig. 1 Fig. 2, described straight-through Optical wave electric heating tube refers to and arbitrarily can insert from two ends, threaded joint or flanged (FLGD) joint 2 for this reason, be welded on water tank straightway both sides, must keep concentric, guarantee metal or non-metallic casing 3 installation site correctly, by nut or lid 5, seal 4 is compressed, as long as tank seal is just passable; Position and the quantity of joint set on demand.

Described metal sleeve or glass bushing 3 can be selected, and are all to be sleeved on outside electrothermal tube 6, and when adopting metal sleeve 3, between metal sleeve 3 and electrothermal tube 6, dress intermediate glass pipe improves security, does not fill intermediate glass pipe also within this patent protection; If directly with glass bushing 3, require the wall thickness > 2mm of glass bushing 3; When this mounting means electrothermal tube damages, do not discharge water, i.e. replaceable electrothermal tube.

Described mica sheet 7 can play the heat insulation and effect of centering.

Described water tank 1 comprises horizontal or vertical, comprises single barrel or twin-tub.

Because electric boiler uses power, from several kilowatts to hundreds of kilowatt, electrothermal tube 6 can with some, during control temperature, can the balanced electrothermal tube quantity reducing energising work, and can three phase mains be used.

Claims (2)

1. metal water tank boilers heated electrically heater-type leads directly to Optical wave electric heating tube mounting structure, it is characterized in that:

" one " on the semicircular end-face of water tank (1) top porose (15), it there is blind flange (16), at the upper pouring-in utensil (17) installing the out-of-date i.e. heating water of current of blind flange (16); The pouring-in utensil (17) of the out-of-date i.e. heating water of described current, being one has the closed container of intake-outlet (18) in-built electrothermal tube (6), and when discharging water, electrothermal tube is connected, and to water heating, disconnects when closing water;

" two " on the straightway of metal water tank (1) casing, welding is threaded or the joint (2) on flanged limit, metal or non-metallic casing (3) are contained in the hole of coaxial fitting (2), there is seal (4) at two ends, compress with nut or lid (5), electrothermal tube (6) two ends have mica sheet (7) and non-metal frame (8) to be arranged in the air in metal sleeve (3).

2. metal water tank boilers heated electrically heater-type leads directly to Optical wave electric heating tube mounting structure according to claim 1, it is characterized in that: electrothermal tube (6) is installed in atmosphere, when filling water in water tank (1), can take out or install.