CN204513404U - A kind of insulating collar for inner flame type cumulative standpipe combustion system - Google Patents

Abstract

The utility model discloses a heat insulation ring for an inner flame type energy-gathering standpipe combustion system, which comprises an annular outer ring and an upper cover ring arranged on the upper opening of the outer ring. The lower concave part, the outer ring is uniformly distributed with air inlet holes along the circumference of the lower side of the lower concave part, the inner ring of the lower concave part is a rounded frustum-shaped smoke guiding cone surface, the outer ring, the upper cover ring and the lower concave part An insulating cavity is formed between the inner rings. The utility model creates a new thermal insulation method for the atmospheric burner, adds the design of the thermal insulation ring, and has three major functions of air intake, thermal insulation, and support for the pot frame, and its biggest function is thermal insulation to prevent heat loss. , thermal efficiency increased by 10%.

Description

A heat insulation ring used in the combustion system of the internal flame type energy-gathering riser

technical field

The utility model relates to a gas burner.

Background technique

The Chinese invention patent with the patent number of 200810121956.1 discloses an inner-flame energy-concentrating standpipe gas burner, which includes a high-fire burner, a low-fire burner, a mixing tube for a large-fire burner, a positioning tube for a small-fire burner and a water accumulation The inner ring of the annular shell of the high-fire burner is in the shape of a rounded table at an angle of 20° to 80° with the horizontal plane. There are 1-5 fire holes on the inner ring, and one end of the mixing tube of the high-fire burner is connected to the annular shell. And it communicates with the inner cavity of the annular shell, and the other end communicates with the large fire nozzle located under the water accumulation tray. There are 1-5 fire discharge holes, and the inner cavity of the round platform cap-shaped shell communicates with the small fire nozzle located under the water accumulation tray through the mixing tube of the small fire burner. Since the burner will lose heat during use, the thermal efficiency is low.

Utility model content

The technical problem to be solved by the utility model is to provide a heat insulation ring for the combustion system of the inner flame type energy-gathering standpipe, reduce heat loss and improve thermal efficiency.

In order to solve the above technical problems, the utility model adopts the following technical scheme: a heat insulation ring for the combustion system of the inner flame type energy-gathering standpipe, which is characterized in that it includes a circular outer ring and an upper opening of the outer ring The upper cover ring of the upper cover ring is provided with a lower concave part at the center of the upper cover ring, and the outer ring is uniformly distributed with air inlet holes along the circumference of the lower side of the lower concave part, and the inner ring of the lower concave part is an inverted frustum-shaped smoke guiding cone surface , a heat insulation cavity is formed between the outer ring, the upper cover ring and the inner ring of the lower recess.

Preferably, the outer edge of the upper cover ring is provided with a pot support boss around the circumference, and the inner edge of the upper cover ring adjacent to the lower recess is provided with an inner ring boss around the circumference direction. A water accumulation groove is formed between the boss and the boss of the inner ring.

Preferably, secondary air windows are uniformly opened on the lower side of the inner ring of the lower concave portion along the circumferential direction.

The utility model creates a new thermal insulation method for the atmospheric burner, adds the design of the thermal insulation ring, and has three major functions of air intake, heat insulation, and support for the pot frame, and its biggest function is heat insulation to prevent heat loss. , thermal efficiency increased by 10%. The heat insulation ring is stamped from a thin-walled stainless steel plate. Square holes are arranged around its lower end for combustion air intake. The upper end is composed of two stepped surfaces plus a slope with a small square hole on the circumference. The layer is used to lock the heat and prevent the heat from dissipating. A small square hole is opened at the bottom of the upper slope to supplement the secondary air.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described:

Fig. 1 is the overall structural diagram of the combustion system of the utility model inner flame type energy-gathering riser;

Fig. 2 is a structural diagram of the inner flame type energy-gathering riser ejecting gas burner;

Fig. 3 is a structural schematic diagram of a large fire burner annular shell;

Fig. 4 is a structural schematic diagram of a thermal insulation ring;

Fig. 5 is a top view of the nozzle seat;

Fig. 6 is a sectional view of the nozzle seat.

Detailed ways

As shown in Figures 1 to 6, the internal flame type energy-gathering standpipe combustion system includes a cooker panel 4 installed on the bottom shell 5, and the bottom shell is provided with a nozzle seat 3 below the cooker panel 4, and the nozzle seat 3 An inner flame riser is installed on the seat to introduce a gas burner 1, and the burner includes a hob base 11 and a large fire burner 12 and a small fire burner 13 arranged above the hob base, and the large fire burner is burned by the large fire. The device upper shell 121 and the high fire burner lower shell 122 are riveted and fixed, and the small fire burner is riveted and fixed by the small fire burner upper shell 131 and the small fire burner lower shell 132. The hob base is installed on the nozzle base, the hob base and the nozzle base are arranged under the cooker panel, the small fire burner is arranged at the center above the hob base, and the large fire burner Set around the small fire burner, the large fire burner and the small fire burner are arranged in the heat insulation ring 2, the heat insulation ring is arranged above the cooker panel, and the upper part of the heat insulation ring is provided with a pot support 7. A water receiving tray 6 is provided on the outer circumference of the tray base, the upper edge of the receiving tray is connected to the heat insulation ring, and the lower edge is connected to the stove tray base.

Described small fire burner 13 comprises round platform hat-shaped shell, is provided with small fire discharge hole 133 around the outer circumference of round platform hat-shaped shell, is provided with a round platform between the round platform hat-shaped shell and the stove base A small-fire burner injection pipe 15 connected to the inner cavity of the hat-shaped shell. The high-fire burner 12 includes an annular shell. Holes 123, between the annular shell and the base of the hob, there are several large fire burner injection pipes 14 communicated with the inner cavity of the annular shell, which are evenly distributed along the annular shell circumferential direction, and the large fire burner injection pipes and small Fire burner ejection pipes all adopt Venturi pipe ejection structure, the bottom of the large fire burner ejection pipe 14 is connected with the large fire nozzle 352, and the bottom of the small fire burner ejection pipe 15 is connected with the small fire nozzle 342.

The combustion system adopts a sunken structure, and half of the height of the inner flame standpipe injection gas burner is located under the cooker panel. In the original burner, the nozzle injection pipe adopts the side opening method. When the nozzle aperture increases, Insufficient primary air will produce yellow flames. For this, the ejector tube of the large fire burner is introduced with a Venturi tube structure to increase the amount of primary air introduced to prevent the generation of yellow flames.

The annular shell of the high-fire burner is provided with a blocking boss 124 at the middle position between the injection pipes of two adjacent large-fire burners to block the mutual circulation of the gases ejected from the injection pipes of the large-fire burners.

The lower shell of the original inner-flame energy-concentrating standpipe gas burner adopts a flat design, and the gas injected by each nozzle is mixed into the cavity of the high-fire burner. If one nozzle is blocked, the other nozzles will spray The gas will be ejected from the ejector pipe that blocks the nozzle, and tempering will occur. For this, a blocking boss is set at the middle position of the two ejector pipe holes in the lower shell of the high-fire burner to prevent it from burning. Cut off the gas flow from each nozzle to prevent backfire.

The bottom of the ejector tube of the small burner is riveted and fixed to the base of the hob, the top is riveted to the round platform hat-shaped shell, the bottom of the ejector tube of the large burner is riveted to the base of the hob, and the top is riveted to the annular shell fixed. Because the low-fire burner and the high-fire burner of the original burner are designed separately, the low-fire burner is easy to fall when the user cleans or picks up, resulting in unsafe hidden dangers. For this purpose, the small-fire burner and the base are riveted. The one-piece method can eliminate the safety hazard of easy falling.

As shown in Figure 4, the heat insulating ring 2 includes an annular outer ring 21 and an upper cover ring 22 located at the upper opening of the outer ring, and a lower concave portion 23 is provided at the center of the upper cover ring, and the outer ring is positioned at the bottom of the outer ring. Air intake holes 211 are uniformly distributed along the circumference of the lower side of the concave portion. The inner ring of the lower concave portion is a rounded frustum-shaped smoke guiding cone surface, and heat insulation is formed between the outer ring, the upper cover ring, and the inner ring of the lower concave portion. Cavity 24. The outer edge of the upper cover ring is provided with a pot support boss 221 around the circumference, and the inner edge of the upper cover ring adjacent to the lower recess is provided with an inner ring boss 222 around the circumference. A water accumulation groove 223 is formed between the platform and the boss of the inner ring. Secondary air windows 231 are uniformly opened on the lower side of the inner ring of the lower concave portion along the circumferential direction. The pot stand is placed on the heat insulation ring, and a positioning square hole is set on the boss of the heat insulation ring pot stand, which fits with the positioning pin of the pot stand to form a positioning and prevent sliding.

Generally, open atmospheric burners on the market are not equipped with heat insulation devices. This utility model creates a new thermal insulation method for atmospheric burners, and increases the design of heat insulation rings. The heat insulation ring has air intake, heat insulation, Supporting the pot support, water accumulation four major functions, its biggest function is heat insulation, an air layer is formed inside the heat insulation cavity 24, with locking heat, prevents heat from dissipating. The heat insulation ring is stamped from a thin-walled stainless steel plate as a whole, the air intake hole 221 is used for combustion intake, and the secondary air window is used to supplement secondary air.

As shown in Figures 5 and 6, the nozzle seat 3 includes a circular panel connection flange 30, and the bottom of the circular panel connection flange is provided with a bottom shell connection support 38, and the circular panel connection method The upper plane of the blue is provided with a circle of square water-retaining flanges 31, and the nozzle seat is provided with a concave lower cavity 33 inside the water-retaining flanges, and the upper plane of the circular panel connecting flange is located between the water-retaining flanges. The inner center of the edge is provided with a small fire boss 34 for installing a small fire nozzle connector, an ignition needle boss 37 and a thermocouple boss 36 are arranged on both sides of the small fire boss, and a large fire nozzle connector is installed at the four corners inside the water retaining convex edge The large fire boss 35, the inside of the circular panel connecting flange is provided with a large fire air intake passage 351 and a small fire air intake passage 341, the large fire air intake passage communicates with the large fire nozzle seat joint, and the small fire air intake passage Connected to the low flame nozzle fitting.

A burner support boss 32 is provided at the center of the four sides of the water retaining flange, and two positioning cylinders 321 are arranged side by side above the burner support boss. The bottom of the water receiving tray is nested outside the outer ring of the water retaining convex edge of the nozzle seat, and the upper flange of the water receiving tray is buckled on the cooker panel. The base of the hob is provided with a positioning hole positioned on the positioning cylinder of the nozzle seat.

The water retaining flange is used to prevent sewage from entering the inner cavity of the nozzle seat, the burner support boss 32 and the positioning cylinder 321 are used to install the burner, and the burner is erected on the 8 positioning cylinders of the nozzle seat through the base of the hob The hob base is supported on the burner support boss, and the positioning holes on the hob base snap into the positioning cylinder.

Claims (3)

1. the insulating collar for inner flame type cumulative standpipe combustion system, it is characterized in that: comprise the outer ring of annular and be located at outer ring upper decorative cover suitable for reading, lower concave part is provided with at the center of upper decorative cover, described outer ring is circumferentially evenly equipped with air admission hole on the downside of lower concave part, the inner ring of described lower concave part be reverse frustoconic lead the cigarette conical surface, form heat-insulation chamber between the inner ring of described outer ring, upper decorative cover and lower concave part.

2. a kind of insulating collar for inner flame type cumulative standpipe combustion system according to claim 1, it is characterized in that: the outer edge of described upper decorative cover is provided with cooker racks boss around circumferential, the inside edge that described upper decorative cover adjoins lower concave part is provided with inner ring boss around circumferential, and described upper decorative cover forms water storage tank between cooker racks boss and inner ring boss.

3. a kind of insulating collar for inner flame type cumulative standpipe combustion system according to claim 1, is characterized in that: circumferentially evenly offer auxiliary air window on the downside of the inner ring of described lower concave part.