CN2051717U

CN2051717U - Heat preservation fuel gas cooker and automatic control valve thereof

Info

Publication number: CN2051717U
Application number: CN 89210923
Authority: CN
Inventors: 马福合; 马树芝; 陈明照
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-03-20
Filing date: 1989-03-20
Publication date: 1990-01-24

Abstract

The utility model discloses a gas cooking utensils and the components, in particular to a heat preservation fuel gas cooker and automatic control valve thereof. The heat preservation fuel gas cooker has simple structure and uses the structure of a wind proof and heat preservation ring, the temperature rises quickly and the thermal efficiency is high when the cooker is burning. The automatic fuel gas control switch matched with the fuel gas cooker has novel structure and can control the quantity of the provided air and the entering fuel gas and then mix the air and the fuel gas according to the best proportion for burning. Using and operating the valve can synchronously adjust the mixing ratio of the gas at one time so as to burn the gas completely.

Description

Heat preservation fuel gas cooker and automatic control valve thereof

The utility model is a kind of gas kitchen ranges and parts thereof, especially insulating gas range tool and autocontrol switch valve thereof, and it belongs to human lives's necessity field.

Present home-use gas kitchen ranges upgrades more and more on kind and specification: be applied to kitchen range as far-infrared technique, electronics automatic ignition kitchen range, boiling type kitchen range ...But the technology of how regulating aspect best combustion gas and the air proportioning is not reported always.Commercially available gas kitchen ranges ordinary circumstance is can control what of gas quantity into by the burnt gas switch valve, and air oxygen give input can not along with the combustion gas input what and allotment automatically to reach the mist of optimal proportion, fully burns combustion gas.Use this controlled valve fuel gas buring insufficient, it is more to produce CO gas.The thermal efficiency of kitchen range is lower.

Task of the present utility model is exactly in order to overcome the shortcoming of above-mentioned gas kitchen ranges.In order to improve the combustion thermal efficiency of kitchen range, need a kind of can be automatically the variation with the open amount of burnt gas switch valve, give input and change air, with the gas kitchen ranges of the air mixture ratio that reaches optimal combustion state.

Solution of the present utility model is as follows: at first improved the stiffening ring on the former 65 type kitchen range edge, stone or metal plate for standing a stove on as a precaution against fire face kitchen range hole of (it contains stone or metal plate for standing a stove on as a precaution against fire face, kitchen range attachment screw, far infrared radiation kitchen range, mixed air vessel, mixing breather pipe, burnt gas switch valve, wireway and fuel gas source etc.), increase stiffening ring height, make it have windproof insulation effect from the stone or metal plate for standing a stove on as a precaution against fire face.Axial (vertically) cross section of this windproof insulation ring be shaped as right angled triangle, its big right-angle side is the outer wall of this windproof insulation ring, it is perpendicular to the stone or metal plate for standing a stove on as a precaution against fire face.Another little right-angle side is an anchor ring on the stone or metal plate for standing a stove on as a precaution against fire face.Hypotenuse is the inwall of this windproof insulation ring.Windproof insulation ring like this can block high wind and blow (blowing-out) partially flame, and the gas flame firepower is concentrated, thereby quick heating when making kitchen range work has improved the thermal efficiency.

In order to realize that the automatic air oxygen that changes with the open amount of burnt gas switch valve to the input technical scheme, is provided with 2-4 root air door support on the valve rod that stretches out the valve chest outside of former burnt gas switch valve.This support other end is supporting the air dampers of spherical interior surface shape.The spherical interior surface of this air door is provided with a bar shaped notch.The valve body airway tube is passed in the bar shaped notch, its give vent to anger chew the spherical interior surface that is fixed on the diplopore air port in the heart.The spherical interior surface in diplopore air port and the spherical interior surface of air dampers coincide mutually.Be that the spherical interior surface in diplopore air port is embedded in the big opening end of oviduct (this spherical interior surface is static spherical interior surface), the osculum end of oviduct is communicated with the mixing breather pipe.What coincide with the concave surface of the spherical interior surface in this diplopore air port is the convex surface (this spherical interior surface is moving spherical interior surface) of the spherical interior surface in air air port.It is in static spherical interior surface concave surface, along the outer wall of the valve body airway tube in the bar shaped notch and trackslip moving.This mist is allocated mechanism automatically when burnt gas switch valve closing state, and when promptly passage in the valve rod and the valve body airway in the valve chest were 90 ° of angles, combustion gas did not enter and mixes breather pipe, mixed air vessel.At this moment, because the spherical interior surface of air dampers just in time matches with the spherical interior surface in diplopore air port, make the diplopore eye in diplopore air port be lived, and air outside can not enter mixed air vessel etc. by the block of the spherical interior surface of air dampers institute.When rotating the burnt gas switch valve, the rotation of valve rod just drives the air door support and also rotates thereupon.At this moment, passage in the valve rod communicates with the valve body airway gradually, combustion gas promptly begins to enter passage, road etc., meanwhile because the air door support rotates and the spherical interior surface of drive air dampers trackslips moving, the diplopore air port of being lived by the spherical interior surface block begins breakdown gradually like this, and its breakdown amount can be controlled air oxygen and matches for input and combustion gas inlet by calculating.Along with the valve rod anglec of rotation is pursued big (being 90 ° to the maximum) combustion gas inlet by big, the air that is complementary with it also increases gradually to input, thereby has reached the purpose of the best mist of automatic in proportion allotment.When as required, in the time of transferring few combusting firepower, need only opposite spin burnt gas switch valve, turn combustion gas inlet and air oxygen down and give input, save combustion gas, clean-burning purpose to reach.

This gas kitchen ranges is simple in structure, and the function of its windproof insulation ring has improved combustion thermal efficiency.Improved burnt gas switch valve is allocated the optimum mixture ratio of air oxygen and combustion gas automatically, makes fuel gas buring abundant, to reach optimal heat efficient.The regulating and controlling mechanism of this burnt gas switch valve has advantage simple in structure, easy to operate.

Accompanying drawings embodiment of the present utility model:

Accompanying drawing 1 is gas kitchen ranges structure meaning diagrammatic sketch.Made a kind of gas kitchen ranges, it has the stone or metal plate for standing a stove on as a precaution against fire face (1) of cast iron, its size is with commercially available 65 type gas kitchen ranges, its diameter of radiant panel of far infrared radiation kitchen range (4) is φ 170mm, the mixed air vessel of kitchen range (4 ') is the cylindrical drum of φ 180 * 48mm, and it is fixed in the kitchen range hole of stone or metal plate for standing a stove on as a precaution against fire face (1) together with far infrared radiation kitchen range (4) by kitchen range attachment screw (2).The big right-angle side height of the windproof insulation ring (3) on the stone or metal plate for standing a stove on as a precaution against fire face (1) is 12mm.The root internal radius of this windproof insulation ring (3) is φ 185mm.In the burnt gas switch valve (13) of these kitchen range, except containing valve chest (9), valve body airway tube (10), its inner duct diameter  .5mm, external diameter: φ 8mm, valve rod (8) external diameter is φ 6mm, valve rod passage (12) diameter is outside the φ 2.5mm, also has two groups of four air door supports (7) that angle is 75 ° of angles, and it is supporting the air dampers (6) of spherical interior surface shape; This spherical interior surface bottom surface circular diameter is: φ 45mm, and segment height: 12mm has a bar shaped notch (14) on its spherical interior surface, and groove width is 8.5mm; Be inlaid with diplopore air port (11) in the big opening end (its diameter is φ 48mm) of the oviduct that is connected with mixing breather pipe (5), its spherical interior surface is provided with the half arc eyelet of the length * wide 15 * 25mm of being of two symmetries; The curvature of this spherical interior surface is with the curvature of the spherical interior surface of air dampers.

The opening meaning diagrammatic sketch that accompanying drawing 2 of the present utility model is the burnt gas switch valve.

Accompanying drawing 3 is the front view (A that removes valve chest of Fig. 2 is to view) of diplopore air door (11) concave surface of burnt gas switch valve.

Accompanying drawing 4 is: the front view of the air dampers of burnt gas switch valve (6) concave surface (B that removes valve chest of Fig. 1 is to view).

Fig. 4 has air dampers (6), bar shaped notch (14).

Accompanying drawing 5 is: the burnt gas switch valve is along valve rod axial section (C-C of Fig. 2 is to view).

Fig. 5 has: air dampers (6), air door support (7), valve rod (8), valve chest (9), valve body airway tube (10), diplopore air port (11).

Claims

1, a kind of gas kitchen ranges, it has stone or metal plate for standing a stove on as a precaution against fire face (1), kitchen range attachment screw (2), far infrared radiation kitchen range (4), mixed air vessel (4 '), the mixing breather pipe (5) that communicates with mixed air vessel (4 '), and the burnt gas switch valve (13) that is connected with fuel gas source by wireway, it is characterized in that: on the edge, stone or metal plate for standing a stove on as a precaution against fire face (1) kitchen range hole in far infrared radiation kitchen range (4) outside, the windproof insulation ring (3) with reinforcement effect of a suitable height is arranged.

2, according to the windproof insulation ring (3) of the described gas kitchen ranges of claim 1, it is characterized in that: axial (vertically) cross sectional shape of this windproof insulation ring (3) is a right angled triangle, its big right-angle side is the outer wall of this windproof insulation ring (3), it is perpendicular to stone or metal plate for standing a stove on as a precaution against fire face (1), another little right-angle side is on stone or metal plate for standing a stove on as a precaution against fire face (1), and hypotenuse is the inwall of this windproof insulation ring (3).

3, according to the employed burnt gas switch valve of the described gas kitchen ranges of claim 1 (13), it is except containing valve chest (9), valve body airway tube (10), valve rod (8), outside the valve rod passage (12), also have mist to allocate mechanism automatically, it is characterized in that: on the valve rod (8) that stretches out valve chest (9) outside, be fixed with 2-4 root air door support (7), it is supporting the air dampers (6) of spherical interior surface shape, have a bar shaped notch (14) on its spherical interior surface, valve body airway tube (10) is passed from this bar shaped notch (14), in its spherical interior surface of chewing the diplopore air port (11) in the big opening end that is fixed on oviduct of giving vent to anger in the heart, the osculum end of this oviduct then with mix breather pipe (5) and be communicated with; The spherical interior surface of the spherical interior surface of air dampers (6) and diplopore air port (11) coincide mutually, the spherical interior surface that is diplopore air port (11) is embedded in the big opening end of oviduct, it is static spherical interior surface, and the convex surface of the spherical interior surface of the air dampers that matches with it (6) is to trackslip moving spherical interior surface for moving spherical interior surface along valve body airway tube (10) outer wall in the bar shaped notch (14) in the concave surface of static spherical interior surface.