CN2722041Y

CN2722041Y - Enhanced gas burner

Info

Publication number: CN2722041Y
Application number: CN 200420000077
Authority: CN
Inventors: 周清仁
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-01-05
Filing date: 2004-01-05
Publication date: 2005-08-31
Anticipated expiration: 2014-01-05

Abstract

The utility model discloses an enhanced coal gas burner, which is transformed through energy. The enhanced coal gas burner which relates to a technique in the coal gasification cleaning and burning fields is arranged in the combustion chamber which can directly burn at the outlet of the coal gasification oven gas. The enhanced coal gas burner is composed of a preheated air wind channel with intensified firing, a coal gas controlling switch, a high-temperature flue gas reflux burner port, the mixed zone of the air and the coal gas, a stable burning disk, and the ignition device of the auxiliary fuel. So as to achieve the goal of the intensified firing of the coal gas, the burning air preheat square air duct is welded on the external wall of the coal gasification equipment. A high pressure positive blower which is arranged on one side of the combustion chamber can make the preheat high-temperature air intensively mixed and burned with the coal gas; the head section on the housing of the device is provided with a plurality of the high-temperature flue gas reflux burner ports which are inwardly concave and are semicircular; the high-temperature flue gas which is not burnt out can be burned through refluxing and circulating by means of the air jet, and the emission of the harmful gas can be reduced. In order to solve that the coal gas can be stably burned, the burning blow head position of the device is provided with the stable burning disk; through making use of the ejector action of the combustion air, when the coal gas pressure is under the unstable condition, the enhanced coal gas burner can also stably burn; the required air supply for burning can be provided, and the cutoff phenomenon can be prevented.

Description

The coal gas intensified burning apparatus

Technical field the utility model coal gas intensified burning apparatus is according to the China's energy policy; the environmental protection theory; the gasification of implementation raw coal; produce clean fuel-coal gas; supporting corresponding boiler plant adopts the coal gas intensified burning apparatus, directly overheavy firing; finish energy conversion, belong to the practical green technology of coal gasification clean combustion.

The background technology rich coal resources in China, it is that directly heat is obtained in burning that tradition is used the coal method, and this method one is that energy utilization rate is low, the 2nd, and contaminated environment, therefore, country advocates the coal gasification, clean combustion, still, the coal gasification is the process of a complexity, the coal gas that produces all has certain difference at calorific value and pressure, causes certain difficulty to smooth combustion, easily produces detonation, take off fire, incomplete and the dangerous phenomenon of gas-fired, at present, the domestic producer that a lot of production coal gas generation equipment are arranged, mostly be gasification and divide body structure with burning, coal gas has heat loss and unsafe factor in course of conveying, equipment is huge, complex structure.

Summary of the invention the utility model is the intensifying device that a kind of gas-fired will be provided, in conjunction with coal gasifier equipment basic structure, and the dispensing combustion air of science; the gasification of realization coal; gas-fired, heat energy transforms and one, and it can effectively control gas-fired stability; improve energy utilization rate; solve the coal gas detonation, take off fire, dangerous phenomenon; control reduces the nitrogen oxide discharge of harmful gases, the protection environment.

Technical solutions of the utility model are achieved in that and the utility model proposes coal gas overheavy firing (Fig. 1); this device is placed in the combustion chamber of the direct burning of coal gas of coal gasifier outlet; adopt the austenite heat-resistance stainless steel material to make; do not produce the oxidative phenomena that comes off under 1082 ℃ of high temperature; select the pressure fan that overcomes pressure resistance in the boiler for use; reach the optimization dispensing of air velocity; it is characterized in that: a blowing system air channel part is located in the combustion chamber [1] under the refractory material protection; can obtain the radiant heat preheated air; offer the abundant mixed intensified burning of coal gas, can reach good burning quality.

The utility model proposes solution coal gas and easily produce the dangerous phenomenon of detonation, this device is provided with explosion proof door above the combustion chamber, in addition, also be provided with the coal gas ignition programme-control, gas output by-pass cock [2], control coal gas amount size and switch, close switch before the igniting, open pressure fan and purge the residual fuel gas in combustion chamber, ignition system is to be igniter fuel with the liquefied petroleum gas, externally send into [6] via the air channel, liquefied gas is lighted, at this moment slowly turn on the gas-fire and air switch in a small amount again with isolating high-pressure ignitor with heat-resisting stainless copper pipe, strengthen coal gas and air quantity delivered again after lighting coal gas, be adjusted to a certain degree combustion flame, solve deflagration phenomenon like this, guarantee security of operation.

The utility model proposes the stability of control gas-fired, coal gasification gas calorific value very low (5850kj/m3) is because will there be big coal gas amount burning just can reach same exerting oneself, the pressure of coal gas also is unsettled, and the stability of gas-fired at this moment has certain difficulty.This device adopt part preheated air and coal gas before spout mixed form [4] under the situation that air velocity optimization is provided and delivered, can make air form very strong jet and the abundant mixed intensified burning of coal gas, both made coal gas when low-pressure, sufficient coal gas smooth combustion also can be provided.

The utility model proposes the control burning and take off fiery phenomenon, stablize the gas-fired critical piece surely combustion dish [5] flame kernel be the sufficient district of coal gas, flame fringe is the rotary combustion district, the edge is the air ejection district again, so, be difficult for taking off fire during gas-fired, no matter there is any condition to change in the combustion process, flame kernel has the high-temperature fuel gas of combustion, also can be used as the igniting source of the gas, therefore, stable overheavy firing gas burner can produce high radiant heat, the energy is fully used, and overheavy firing gas boiler efficient further improves.

The utility model proposes control and reduce the nitrogen oxide noxious gas emission, several semicircle orifices have been cut at this crust of the device spout place [3], be processed into concavity, its principal character effect is: utilize the jet of air velocity to make smoke backflow circulation overheavy firing in the combustion chamber, can reduce the nitrogen oxide discharge of harmful gases in a large number.

Description of drawings further describes the utility model below in conjunction with the drawings and specific embodiments

Fig. 1 is the utility model coal gas intensified burning apparatus.

Fig. 2 is that device shown in Figure 1 is useful for supporting boiler, is combined as SZS, WNS-AII type overheavy firing gas boiler.

Fig. 3 is that device shown in Figure 1 is useful for supporting boiler DZL-AII type, is combined as DZS-AII type overheavy firing gas boiler.

Fig. 4 is that device shown in Figure 1 is useful for supporting boiler SZL--AII type, is combined as SZS-AII type, SHS-AII type overheavy firing gas boiler.

The specific embodiment: embodiment 1

Adopt coal gas intensified burning apparatus shown in Figure 1 and the supporting one of SZS-YQ type boiler WNS-YQ type boiler shown in Figure 2, be combined as SZS-AII, WNS-AII type overheavy firing gas boiler, change traditional fuel oil, gas fired-boiler energy resource structure, energy savings is reduced operating cost certain contribution, presses the per hour operating cost calculating of 1t/h boiler:

Coal-fired: 190kg * 0.34 yuan=64.60 yuan

Fuel oil: 65kg * 3.40 yuan=221 yuan of overheavy firing gas boilers are per hour saved operating cost 70% than oil burning boiler

Embodiment 2

Adopt coal gas intensified burning apparatus shown in Figure 1 and the supporting one of DZL-AII type boiler shown in Figure 3, be combined as DZS-AII type overheavy firing gas boiler, changing traditional fire coal directly uses, energy waste, contaminated environment, this utility model reduces noxious gas emission to improving the urban atmosphere quality, be beneficial to environmental protection, energy savings.

Embodiment 3

Adopt coal gas intensified burning apparatus shown in Figure 1 and SZL-AII type shown in Figure 4, the supporting one of SHL-AII type boiler, be combined as SZS-AII type, SHS-AII type overheavy firing gas boiler, can make full use of energy conversion, the protection environment.

Claims

1, a kind of coal gas intensified burning apparatus, it includes overheavy firing preheated air air channel [1], gas control switch [2], high temperature gases recirculating burner port [3], air and coal gas Mixed Zone [4], burning steady combustion dish [5], auxiliary fuel igniter [6] and forms, it is characterized in that this device is located in the combustion chamber of the direct burning of coal gas of coal gasifier outlet, is in hot environment.

2, according to the described coal gas intensified burning apparatus of claim 1, it is characterized in that the square air channel of overheavy firing air preheat [1], be welded on the outer wall of coal gasification apparatus and be positioned at combustion chamber one side that high temperature air is provided, and reinforcement mixed combustion gives gas.

3,, it is characterized in that this device gas passage is provided with dish-shaped hand control switch [2] according to the described coal gas intensified burning apparatus of claim 1.

4,, it is characterized in that this crust of the device head is provided with some semicircle indent combustion chamber high temperature smoke backflow burner ports [3] according to the described coal gas intensified burning apparatus of claim 1.

5, according to the described coal gas intensified burning apparatus of claim 1, it is characterized in that gas-fired surely combustion dish [5] be positioned at burner burning shower nozzle position.

6, according to the described coal gas intensified burning apparatus of claim 1, [1] enters through the air channel to it is characterized in that auxiliary fuel igniter [6], and outlet is positioned at this shower nozzle bottom, device combustion zone.