CN202229230U - Wind screen cover of hot surface ignitor - Google Patents

Abstract

The utility model relates to a wind screen cover of a hot surface ignitor comprising a wind screen cover body, on which is coated a far-infrared emission coating layer. In the utility model, a surface of the wind screen cover is additionally provided with a modified coating layer, thereby the antioxidizability, the temperature toleration and the capability of emitting far infrared of the stainless steel or the carbon wind screen cover can be improved. The wind screen cover provided with the modified coating layer on the surface has performance of resistance to temperatures below 1000DEG and antioxidizability. The entire radiation emissivity can reach 85% to more than 90%, thereby the thermal efficiency of the ignitor can be greatly improved, and the energy consumption of the ignitor can be reduced. The production costs can be reduced by using the stainless steel or the carbon steel to replace the nickel to produce the wind screen cover of the hot surface ignitor.

Description

A kind of windshield that is used for the surface ignition device

Technical field

The utility model relates to a kind of windshield of novel surface ignition device.

Background technology

Electronic type igniter manufacturing is rapid at Chinese development in recent years, and it relates to all trades and professions such as some head system of automobile, all kinds of boiler, various fuel heater and weapon, but major part is to adopt electronic ignition mode at present.Though the reaction of electronic ignition method is fast; Can accomplish that miniaturization and reliability are high; But interfere harmful owing to can produce high-frequency electronic in the electronic ignition course of work; And fuel gas buring is incomplete, and unburnt gas discharging meeting and portioned product adopt leaded piezoelectric ceramics etc., can produce environment to pollute.More and more pay attention to problem of environmental pollution at home and abroad; Especially to today of low-carbon economy development; People are more and more tighter to the emission control of human body interference, unburnt gas to electromagnetic wave, and the discharging of poisonous metal element presses for and develops a kind of high-frequency electronic interference that do not produce; Fuel gas buring fully and do not have the novel surface ignition system and the heater element of discharge of poisonous waste, with meeting the market requirement.

From a kind of surface ignition device of development in 1975, be widely used in ignition system in the world, but, be easy in the use damage, and the volume of ignition system be bigger because its density is low, and intensity is low with the recrystallized silicon carbide preparation.Developed again in 1988 and a kind of small-sized composite ceramics surface ignition device, it has performances such as homogeneous, densification, intensity height.Therefore, when it is used for igniter, start soon, the material thermal-shock resistance is good.Its very fast combustion vapour igniting market that gets into.It is mainly by carborundum, molybdenum disilicide, aluminium nitride; Carborundum, molybdenum disilicide or silicon nitride, aluminium oxide (US.Patent No 5045237); Aluminium nitride, carborundum, aluminium oxide, silicon nitride, boron carbide (US.Patent No3649310); Carborundum, silicon nitride (US.Patent No3890250), and from based on silicon carbide compositions such as (U.S.Patent3252827), their preparation technology adopts heat pressing process or recrystallization sintering process.These patents all do not relate to the surface modification problem of surface ignition device windshield.

The utility model content

The utility model technical problem to be solved is to provide a kind of raising heat energy utilization rate, reduces the windshield of surface ignition device igniting power.

The technical scheme of the utility model is: a kind of windshield that is used for the surface ignition device, comprise the windshield body, and be coated with the far infrared emission coating on the described windshield body surface.

Preferably, described windshield body adopts the stainless steel body.

Preferably, described windshield body adopts the carbon steel body.

The utility model adopts stainless steel or carbon steel to substitute traditional metallic nickel windshield body, scribbles the far infrared emission coating on the surface of the windshield of stainless steel or carbon steel, and the windshield of stainless steel or carbon steel is carried out surface modification.This kind far infrared emission coating can be made up of titanium oxide, nickel oxide, magnesia, silica, aluminium oxide etc.; Also can add silica, aluminium oxide, iron oxide by one or more rare earth zirconiums of oxide rare earth, samarium, cobalt, Ce elements; Or contain coatings such as carborundum, cobalt oxide, talcum powder, manganese dioxide, aluminium oxide, chromium oxide, iron oxide, nickel oxide, boron nitride, Suzhou soil, zirconia, lanthana and form.

This far infrared emission coating can adopt plasma, plasma spray technology or be prepared into the slurry direct brushing at the windshield table after form the surface modification protective finish behind the baking sintering; Surface modified coat is as implementing with plasma spraying technology, and its coating is formed and can be implemented with reference to patent of invention publication number CN1493626A; Surface modified coat is implemented as adopting slurry coated sintering process, and its coating is formed and can be implemented with reference to patent of invention publication number: CN1493626A, CN1583631A technology.

The beneficial effect of the utility model is:

1, increases modified coating on the windshield surface, can improve non-oxidizability, temperature tolerance and the emitting far-infrared performance of stainless steel or carbon windshield; Windshield with surface modified coat has anti-high temperature, antioxygenic property below 1000 ℃, and its total radiation rate can improve the thermal efficiency of igniter greatly up to more than the 85-90%, reduces the igniter energy consumption;

2, adopting stainless steel or carbon steel replacement nickel to process the windshield that the surface ignition device uses can reduce production costs.

Description of drawings

Fig. 1 is the profile of said windshield.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is done further detailed explanation, but be not restriction the utility model protection domain.

With reference to Fig. 1, a kind of windshield that is used for the surface ignition device compriseswindshield body 1, and described windshield body is coated with farinfrared emission coating 2 on 1 surface.Describedwindshield body 1 adopts the stainless steel body.

Claims (3)

1. a windshield that is used for the surface ignition device comprises the windshield body, it is characterized in that: be coated with the far infrared emission coating on the described windshield body surface.

2. the windshield that is used for the surface ignition device according to claim 1 is characterized in that: described windshield body adopts the stainless steel body.

3. the windshield that is used for the surface ignition device according to claim 1 is characterized in that: described windshield body adopts the carbon steel body.

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