CN202158562U

CN202158562U - Combustor

Info

Publication number: CN202158562U
Application number: CN2011202132238U
Authority: CN
Inventors: 程战锋; 韩建英
Original assignee: Sany Heavy Industry Co Ltd
Current assignee: Sany Heavy Industry Co Ltd
Priority date: 2011-06-22
Filing date: 2011-06-22
Publication date: 2012-03-07
Anticipated expiration: 2021-06-22
Also published as: WO2012174925A1

Abstract

The utility model discloses a combustor, which comprises a furnace cavity, an ignitor, an electrothermal element and an electric source connector; the furnace cavity comprises an outer furnace cavity and an inner furnace cavity; and the electrothermal element is mounted between the outer furnace cavity and the inner furnace cavity and is communicated with an electric source through the electric source connector. The combustor can provide a uniform high-temperature temperature field, which is favorable for improving combustible performance and combustion stability of fuel, reducing pollution on support equipment and decreasing failure rate of the complete equipment.

Description

A kind of burner

Technical field

The utility model relates to thermal hardware, is specifically related to a kind of burner.

Background technology

Burner is a kind of fuel to be converted into the device of heat energy, is widely used on the equipment such as boiler, Industrial Stoves and civilian utensil at present.Burner mainly comprises: burner main frame, fuel oil supply system, wind oil adjusting device, air blast, flame detector system etc.The burner host machine part mainly comprises: combustion chamber, bellows, oil gun, fuel interface etc.The combustion chamber comprises an independently combustion chamber of burner hearth and and main frame one.During work, fuel is in the burner hearth internal combustion, thereby the high temperature resistant refractory brick that inlay burner hearth inside can form the high-temperature temperature field, ensures that combustion flame continous-stable, fuel combustion are abundant.

Usually the service behaviour of burner directly determines energy consumption, quality, production capacity and the processing cost of bituminous mixing plant converted products, also is the important evaluation index of bituminous mixing plant performance quality.The fuel that early stage bituminous mixing plant burner uses is diesel oil mostly, and in recent years, the ratio that heavy oil, residual oil, combustion gas and coal dust use begins to increase, and also has a few part to adopt coal dust technology (mainly being domestic small-sized station).According to the energy resource structure Development Trend, and the production of bound bitumen mixing plant and process characteristic, fuel oil (heavy oil, residual oil), combustion gas and coal dust class burner will occupy critical role in bituminous mixing plant.

At present, fuel oil (heavy oil, residual oil) and coal dust class burner in use, because of the burning initial stage burner hearth in temperature lower; The ignitability of fuel and early stage poor combustion stability; When particularly environment temperature is low, need repeatedly igniting, initiation combustion is often cutoff also; Fuel can not completing combustion, simultaneous over-emitting black exhaust phenomenon.Because the unnecessary fuel (greasy dirt) that the frequent igniting of burner brings can pollute parts such as cylinder blade, deduster cloth bag; And then influence finished product asphalt quality; Also cause cloth bag congestion affects efficiency of dust collection; Even the pitch station was once arranged because the deduster cloth bag by the oil contamination initiation fire, causes serious accident and property loss.Though can be in advance to fuel oil (heavy oil, residual oil) heating, it is improved kindling and early stage flammability effect is limited, also have a very big potential safety hazard to fuel oil (heavy oil, residual oil) heating-up temperature is too high simultaneously.

The utility model content

In order to overcome the above-mentioned defective and the deficiency of prior art, first purpose of the utility model is to provide a kind of flammable performance of fuel and burner of combustion stability of promoting, and comprising: burner hearth, igniter, heating and power connector; Burner hearth comprises outer burner hearth and internal furnace; Heating is installed between outer burner hearth and the internal furnace, and through the power connector energized.

When the utility model is switched on through the heating between the burner hearth inside and outside being arranged on, form the temperature field of even high temperature, help promoting the flammable performance and the combustion stability of fuel, reduce pollution, reduce equipment complete machine rate of breakdown corollary equipment.

Description of drawings

Shown in Figure 1 is the structural representation of the utility model burner.

The specific embodiment

To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.

As shown in Figure 1, the embodiment of the utility model burner comprises: air is supplied with air channel 1, glory hole 2, thermocouple 3, igniter 4, burner shell 5, burner air channel 6, fuel nozzle 7, outer burner hearth 8, heating wire 9, internal furnace 10, power connector (figure does not show) and controller (figure does not show).

Wherein, heating wire 9 is installed between outer burner hearth 8 and the internal furnace 10 in the conduit, and is connected with this power connector; Thermocouple 3 is connected with this controller, is used for the temperature value of real-time sensing internal furnace interior 10, and this temperature value is sent to controller; Controller is connected with this igniter 4, controls the startup of this igniter 4 and closes.

Preferably; Present embodiment can also comprise: the photoelectric sensor that is connected with this controller (figure does not show); Be used for after igniter 4 starts, optical signal (being the optical signal that flame sends) in the real-time sensing internal furnace 10, and the signal of telecommunication that optical signal is corresponding is sent to controller; Correspondingly, this controller can comprise: comparing unit (figure does not show) is used to compare temperature value and the preset temperature threshold value that thermocouple 3 senses in real time; First control module (figure do not show) is used for after comparing unit confirms that temperature value that thermocouple 3 senses in real time is greater than the preset temperature threshold value, and control igniter 4 is to realize the function of the automatic preheating of burner; Second control module (figure does not show) is used for behind the value stabilization of the signal of telecommunication that photoelectric sensor sends, and the control heating quits work.

The work engineering of above-mentioned each element is following: before the burner life's work, pass through this power connector energized so that heating wire 9 is switched on; And through the temperature value in the thermocouple 3 real-time sensing burner internal furnaces 10; The comparing unit of controller is compared this temperature value and preset temperature threshold value (as 500 degrees centigrade) in real time; First control module of controller is confirmed (promptly in burner hearth, having set up the high-temperature temperature field) after this temperature value is greater than this preset temperature threshold value at comparing unit; Trigger igniter 4 igniting, make air in supplying with air channel 1,6 entering combustion chambers, burner air channel, and with the fuel mix spray burning that ejects through fuel nozzle 7.After igniter starts; The corresponding optical signal of flame in the real-time sensing internal furnace 10 of photoelectric sensor; And the signal of telecommunication that optical signal is corresponding is sent to controller; Second control module of this controller is behind this signal of telecommunication stable (promptly not changing), and control heating wire 9 quits work, and realizes closing automatically of heating wire 9.

Certainly, during concrete operations, also can pass through glory hole (2) and observe the flame combustion situation; After treating that flame combustion is stable; Realize closing automatically heating wire 9 through operation control, as a heating wire 9 button that quits work can be set, when this button is pressed on controller; Produce corresponding automatic shutdown signal, to realize closing heating wire 9 automatically.

It will be appreciated by those skilled in the art that; Heating wire 9 also can be other heating; Like electric hot plate, ribbon heater, heating cable, electric hot tray, electroheat pair, Electrothermal ring, electrical bar etc., various heatings are arranged between the inside and outside burner hearth and get final product, and are not limited in the groove between the inside and outside burner hearth; Thermocouple 3 also can be other temperature-sensing device, like resistance temperature detector, thermistor and sensor IC etc.

The utility model is through being arranged on the temperature field of the even high temperature of heating wire 9 energising back formation between the inside and outside burner hearth; Help promoting the flammable performance and the combustion stability of fuel; Minimizing is to the pollution of corollary equipment (for example: cylinder blade, deduster cloth bag etc.); Make the fuel and the air that get into the combustion chamber more be prone to light, it is more stable to burn, and reduces equipment complete machine rate of breakdown; Preferably, through being connected of controller and thermocouple 3, and thermocouple 3 sense actual temperature value greater than the preset temperature threshold value after igniter 4 automatically, in advance high-temperature process is carried out in the fuel combustion temperature field, that has realized burner preheats function automatically; Further preferably, through the photoelectric sensor that is connected with controller is set, realized closing automatically of heating wire 9.

The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.

Claims

1. a burner comprises burner hearth, igniter, it is characterized in that, also comprises: heating and power connector; Said burner hearth comprises outer burner hearth and internal furnace; Said heating is installed between said outer burner hearth and the internal furnace, and through said power connector energized.

2. burner according to claim 1 is characterized in that, also comprises:

Temperature-sensing device is used for the temperature value in the said internal furnace of real-time sensing;

Controller is used to compare said temperature value and preset temperature threshold value, and control starts said igniter after said temperature value is greater than said preset temperature threshold value.

3. burner according to claim 2 is characterized in that, also comprises:

Photoelectric sensor is used for after said igniter starts, the optical signal in the real-time said internal furnace of sensing, and the signal of telecommunication that said optical signal is corresponding is sent to said controller.

4. burner according to claim 3 is characterized in that, said controller comprises:

Comparing unit is used to compare said temperature value and preset temperature threshold value;

First control module is used for after said comparing unit confirms that said temperature value is greater than said preset temperature threshold value, and control starts said igniter;

Second control module is used for behind the value stabilization of the said signal of telecommunication, controls said heating and quits work.

5. require each described burner among the 1-4 according to aforesaid right, it is characterized in that said heating is a heating wire.

6. require each described burner among the 2-4 according to aforesaid right, it is characterized in that said temperature-sensing device is a thermocouple.