CN2662084Y

CN2662084Y - Heat accumulating burning type gas pipe with fin

Info

Publication number: CN2662084Y
Application number: CNU2003201159690U
Authority: CN
Inventors: 赵升智; 张太富
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-11-20
Filing date: 2003-11-20
Publication date: 2004-12-08
Anticipated expiration: 2013-11-20

Abstract

The utility model discloses a regenerative finned gas pipe for combustion, belonging to a gas pipe used in a regenerative burning machine, in particular to the gas pipe with finned structure. The utility model adopts the technical proposal that a long-pipe-type metallic tube, which is surrounded by a heat storage regenerator (directly connected with the burner) for gas transportation, is made to a particular shape, namely, an external fin of uniform distribution along radial is positioned at the peripheral of pipe wall, and an internal fin of uniform distribution along radial is also positioned at an inner cavity. A gas ignition channel for remote ignition is arranged at the inner cavity of the gas pipe. The gas ignition channel is arranged at the gas pipe or in the ignition tube. The gas ignition channel is supposed to be arranged at the position near the external wall of the gas pipe. The utility model is characterized in a simple structure, a reasonable design and a remarkable technique: on one hand, the water equivalent is balanced, and on the other hand the combustion efficiency is improved and energy is saved.

Description

Heat storage type combustion is with being with the fin gas pipe

Technical field

The utility model belongs to a kind of gas pipe that is used in the heat storage type combustion machine, especially a kind of gas pipe that has fin structure.

Background technology

The superiority of heat storage type combustion mode is admitted widely, also more and more is widely used.Hold over system in the existing regenerative combustion technology divides single accumulation of heat and two accumulation of heat, and promptly large-scale regenerative combustion system is provided with heat storage respectively to air and coal gas, thereby can reach more satisfactory energy-saving effect.But medium and small regenerative combustion system mostly is single accumulation of heat, radiant tube heat storage type combustion machine particularly, because the restriction of its installing space, general accumulation of heat air, not heat-storing coal-gas.When using liquefied gas, natural gas or the contour calorific value fuel gas of coke-stove gas, though there is the unbalanced problem of water equivalent, its influence is still not too remarkable.And the more low-calorie combustion gas of use, during as mixed gas or blast furnace gas, because the volume number between air and the combustion product differs bigger, the defective of single accumulation of heat just shows more significantly, the heat that combustion product brings heat storage can not be absorbed by cold air fully, make exhaust gas temperature also constantly be elevated to a higher temperature, increased heat loss due to exhaust gas, so that be difficult to embody the superiority of heat storage type combustion.

Summary of the invention

At above-mentioned defective of the prior art, the purpose of this utility model provides a kind of finned gas pipe, place in the air accumulation of heat passage, it can absorb the unnecessary heat in the heat storage, it is passed to coal gas coal gas is formed preheating, thereby the equilibrium water equivalent guarantees making full use of of heat, and forms the superiority that heat storage type combustion is given full play in two preheatings.

The purpose of this utility model is achieved in that and will be in the long cartridge type metal material pipe of (directly being connected with burner) the conveying coal gas in the heat storage encirclement, be made as special shape: promptly the tube wall outer periphery is equipped with radially equally distributed outer fin, also is provided with radially equally distributed inner fin in the tube wall inner chamber.

Also be provided with coal gas ignition passage in the gas pipe inner chamber for long-range igniting usefulness.The coal gas ignition passage is attached on the gas pipe, or is arranged in the ignitron.Described coal gas ignition passage should be arranged near on the position of gas pipe outer wall." long-range igniting " described herein is another invention of the applicant, and it has been recorded in utility model patent of applying on July 3rd, 2003 (03254702) and the patent of invention (031283802,031283810) of the applying on July 24th, 2003.It is near the diverse new technical scheme of mode of lighting a fire burner a kind of and of the prior art.It is a kind of igniter to be arranged on place away from burner, and the igniting back is sent to a kind of new invention that burner is at a distance lighted coal gas by ignition channel with kindling material.

The utility model is simple in structure, and is reasonable in design, obtained obvious technical effects.Though only in air/flue, be provided with heat storage, be single accumulation of heat outwardly, in fact because the setting of fin on the gas pipe, after also can being stored the heat on the heat storage, gas pipe passes to coal gas again, improve the initial temperature of coal gas, reduced the amount of unbalance of water equivalent on the one hand, reduced exhaust gas temperature, also improve efficiency of combustion on the other hand, saved the energy.

Description of drawings

Accompanying drawing 1 is used for the structural representation of heat storage coal gas pipe radiator combustion engine for the utility model;

Accompanying drawing 2 is a kind of cross-sectional structure schematic diagram of the utility model gas pipe;

Accompanying drawing 3 is the cross-sectional structure schematic diagram of another kind of the utility model gas pipe;

Accompanying drawing 4 is the cross-sectional structure schematic diagram of another kind of the utility model gas pipe;

Accompanying drawing acceptance of the bid keep the score state as follows: 1---burner; 2---heat storage; 3---gas pipe; 4---air/fume pipe; 5---air/exhaust gases passes; 6,7,9,10---the air/fume pipe that is communicated with reversal valve; 8---air/flue gas reversal valve; 11---the coal gas reversal valve; 12---the gas pipe that is communicated with reversal valve; 13---outer fin; 14---inner fin; 15---ignition channel; 16---gas passage; 17---the coal gas ignition pipe.

The specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail.Accompanying drawing 1 is depicted as the embodiment that gas pipe of the present utility model is used on heat storage coal gas pipe radiator combustion engine.Coal gas enters coal gas reversal valve 11 from managing 12, enters the right side (the arrow direction is seen in figure) of combustor by coal gas reversal valve 11, leads to burner 1 through gas pipe 3; Air flows to the right side that pipe 9 enters combustor by reversal valve 8 from managing 10, and when air passed through heat storage 2 in air/exhaust gases passes 5, the heat that absorbs heat storage obtained preheating; Coal gas and air mix at the burner place, light after-combustion by routine igniting or remote spots ignition method, and combustion product is through the left side of U-shaped tube chamber arrival combustor, and combustion product is passed to heat storage 2 through heat storage 2 with heat, and gas pipe 3 also absorbs a part of heat; Then, combustion product is discharged through air/exhaust gases passes 5, air/fume pipe 7, reversal valve 8, air/fume pipe 6.Arrived next circulation, cold coal gas and air all enter the left side of combustor, and heat storage 2 and gas pipe 3 will be passed to air and coal gas to the heat that has stored, make them obtain preheating, thereby improve efficiency of combustion, also balance water equivalent.Figure 3 shows that the structural representation of the gas pipe that uses when adopting the general point ignition method, find out thus inside and outside fin be arranged on equably tube wall inside and outside, they are radial distribution; The structural representation of the gas pipe that Fig. 2, Fig. 4 use when adopting long-range igniting, the setting of inside and outside fin is similar to Fig. 3, also be provided with a long-range igniting ignition channel 15 in its pipe, ignition channel 15 can be attached on the tube wall of gas pipe, also can be arranged in addition in the ignitron 17.Fin is a kind of embodiment among the figure, is not to have only a kind of set-up mode of diagram, according to stove shape difference, the size of combustor and the difference of structure, the setting of fin is can be diversified, and not necessarily one is long and the other is short such as inner fin, and other set-up mode is also arranged.

Claims

1, a kind of heat storage type combustion machine is with being with the fin gas pipe, carry the pipe of coal gas for a kind of long cartridge type, make by metal material, directly be connected and be in the heat storage encirclement with burner, it is characterized in that: the tube wall outer periphery of described gas pipe (3) is equipped with radially equally distributed outer fin (13), also is provided with radially equally distributed inner fin (14) in the tube wall inner chamber of gas pipe (3).

2, gas pipe according to claim 1 is characterized in that: also be provided with the coal gas ignition passage (15) for long-range igniting usefulness in gas pipe (3) inner chamber.

3, gas pipe according to claim 1 is characterized in that: coal gas ignition passage (15) is attached on the gas pipe (3), or is arranged in the ignitron (17).

4, according to the described gas pipe of arbitrary claim in the claim 1 to 3, it is characterized in that: described coal gas ignition passage (15) is arranged near on the position of gas pipe (3) wall.