CN211902855U - High-efficiency combustion low-pollution emission oil burner - Google Patents

Abstract

An oil burner with high-efficiency combustion and low pollution discharge comprises an oil burner body, a stabilized voltage power supply, a temperature switch, an exhaust fan and a control circuit; the exhaust fan is arranged at the side end of the boiler flue; the outer side of the oil gun atomizing pipe of the fuel burner body is provided with an outer cylinder body, a heat insulating material and a heat insulating cylinder body; heat supply pipelines are arranged at two ends of the cylinder; the oil tank of the oil burner body is divided into an inner layer and an outer layer, and the outer layer of the oil tank is provided with a heat insulation material and a heat preservation cylinder; the outer side of the inner layer of the oil tank is provided with a heat release pipe; the head end of the heat release pipe is connected with one heat supply pipeline of the outer cylinder, a tail end waste gas pipe of the heat release pipe is arranged on the side wall of the flue, and the other heat supply pipeline of the outer cylinder is connected with an air outlet pipe of the exhaust fan; the temperature switch is arranged on the outer side of the oil gun atomizing pipe; the stabilized voltage supply and the control circuit are arranged in the element box and are connected with the temperature switch and the exhaust fan through leads. This is novel can reach better fuel atomization effect, has improved fuel combustion efficiency, and exhaust pollutant is few, has reduced the pollution that brings the environment.

Description

High-efficiency combustion low-pollution emission oil burner

Technical Field

The utility model relates to a combustor equipment technical field, especially a low pollutant discharge oil burner of high-efficient burning.

Background

Fuels used by burners applied to boilers and the like are generally divided into natural gas, coal, fuel oil and the like, and the fuel oil burners adopt the fuel oil as the fuel; in the application of the boiler fuel oil burner, in order to ensure the combustion effect of fuel oil, the fuel oil entering a boiler hearth needs to be atomized firstly. The atomization is generally divided into pressure atomization, negative pressure atomization and the like, the pressure atomization is to pump out and pressurize fuel oil through an oil pump, then spray the fuel oil from a nozzle of a front spray pipe of an oil gun atomization pipe of a combustor into a hearth of the boiler for combustion, and the pressure atomization is also a mode that compressed air is added into a closed oil tank, and then the fuel oil with pressure is sprayed out from the nozzle of the front spray pipe of the oil gun atomization pipe of the combustor into the hearth of the boiler for combustion; negative pressure atomization is that air with high flow rate output by an air compressor and the like continuously flows through an air pipe from the upper end of a fuel pipe of a burner oil gun, negative pressure is generated at the upper end of the fuel pipe, then fuel in a fuel tank is continuously sprayed out from a nozzle of the fuel pipe in a mist manner to obtain primary atomization, and then the primarily atomized fuel is sprayed out from a nozzle of a front spray pipe of the burner oil gun atomization pipe in a mist manner to enter a boiler hearth for combustion (the ignition gun of the boiler fuel burner ignites the mist fuel entering the boiler hearth firstly, and then the fuel burns by itself). Because the negative pressure atomization effect is better, the negative pressure atomization device is more applied to the fuel oil burner.

At present, current boiler fuel burner's negative pressure atomizing device receives its structure to limit, the fuel gets into the atomizing intraductal back from its preliminary atomizing of fuel pipe nozzle, when spray tube nozzle blowout before oil gun atomizing pipe front end again, low and the air pressure is low time in temperature very much, form oil droplet in the atomizing pipe easily, oil droplet is direct can not obtain effectual atomizing before the spray tube nozzle in the past, can cause the influence to the atomizing effect of fuel like this, further the fuel is not good because the atomizing, the burning can not cause the energy extravagant inadequately, and can cause the pollution to the environment after the fuel that does not have abundant burning releases the air. The existing fuel oil burner adopting pressurized atomization has the problems of poor fuel oil atomization, poor subsequent combustion effect, energy waste and environmental pollution when the temperature is low and the pressure of an oil pump is low. Based on the above, it is particularly necessary to provide a fuel burner capable of effectively realizing fuel atomization, improving combustion efficiency and reducing environmental pollution.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects that the prior boiler fuel oil burner cannot effectively atomize fuel oil sprayed out from the front nozzle of the oil gun atomizing pipe when the temperature is low and the air pressure is low due to the structural limit, the utility model provides a heating pipe which is arranged outside the oil gun atomizing pipe of the oil burner body and outside the oil tank, the heating pipe effectively utilizes the waste heat of the exhaust gas discharged from the boiler flue after the combustion of the oil burner body, so that the fuel oil in the oil tank and the preliminarily atomized fuel oil in the oil gun atomizing pipe can be fully heated, the fluidity of the heated fuel oil is better, the surface area can be increased, and the atomization is more facilitated, therefore, a better fuel oil atomization effect is achieved, the fuel oil combustion efficiency is improved, and the environmental pollution is reduced.

The utility model provides a technical scheme that its technical problem adopted is:

the high-efficiency combustion low-pollution discharge oil burner comprises an oil burner body, a stabilized voltage power supply, a temperature switch and an exhaust fan, and is characterized by also comprising a control circuit; the exhaust fan is arranged at the side end of the boiler flue; the outer side of the oil gun atomizing pipe of the fuel burner body is provided with an outer cylinder body, a heat insulating material and a heat insulating cylinder body; heat supply pipelines are arranged at two ends of the outer cylinder; the oil tank of the oil burner body is divided into an inner layer and an outer layer, and the outer layer of the oil tank is provided with a heat insulation material and a heat preservation cylinder; the outer side of the inner layer of the oil tank is provided with a heat release pipe; the head end of the heat release pipe is connected with one heat supply pipeline of the outer cylinder, a tail end waste gas pipe of the heat release pipe is arranged on the side wall of the flue, and the other heat supply pipeline of the outer cylinder is connected with an air outlet pipe of the exhaust fan; the temperature switch is arranged on the outer side of the oil gun atomizing pipe; the stabilized voltage supply and the control circuit are arranged in the element box; the anode of the power output end of the stabilized voltage power supply is electrically connected with one end of the temperature switch, and the other end of the temperature switch, the cathode of the power output end of the stabilized voltage power supply and the two ends of the power input of the control circuit are respectively electrically connected; the control power supply input end of the control circuit is electrically connected with one pole of the alternating current power supply, and the control power supply output end of the control circuit, the other pole of the alternating current power supply and the two ends of the power supply input end of the exhaust fan are electrically connected respectively.

Furthermore, the heat supply pipeline is communicated with the space between the outer side of the oil gun atomizing pipe and the inner side of the outer cylinder body.

Further, the exhaust gas pipe communicates with the inside of the flue.

Further, the stabilized voltage supply is an alternating current to direct current switching power supply module.

Further, the temperature switch is a kick type normally closed contact temperature switch.

Further, the control circuit is a relay.

The utility model has the advantages that: the rest of the using processes and principles of the novel boiler atomizing fuel oil burner are completely consistent with the working principle and the using process of the existing boiler atomizing fuel oil burner. This is novel, be provided with the heating pipe in the fuel burner body oil gun atomizing pipe outside and the fuel tank outside, the heating pipe effectively utilizes fuel burner body burning back through boiler flue exhaust waste gas waste heat, and at temperature switch, control circuit combined action is down, the fuel fully obtains the heating after making the preliminary atomizing in fuel and the oil gun atomizing pipe in the fuel tank, the fuel obtains after heating, the mobility is better, can increase the surface area and then do benefit to the atomizing more, reach better fuel atomization effect from this, get into the better combustion that obtains in the furnace, fuel combustion efficiency has been improved from this, and because fuel combustion is effectual, exhaust waste gas pollutant is few, the pollution brought the environment has been reduced. Based on the above, so this novel application prospect that has.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic plan view of the present invention;

fig. 2 is a circuit diagram of the present invention.

Detailed Description

As shown in figure 1, the high-efficiency combustion low-pollution emission oil burner comprises an oil burner body 7, a stabilized voltage power supply 8, a temperature switch 9 and an exhaust fan 10, wherein the oil burner body is provided with a circular oil tank 1, an air pipe 2, an igniter 3, a fuel oil pipe 4, a circular oil gun atomizing pipe 5, a blower 6 and the like, the stabilized voltage power supply 8, the temperature switch 9 and the exhaust fan 10 are arranged on the upper end of the oil tank 1, the upper end of the oil tank 1 is provided with an oil filling pipe, the upper end of the oil tank is provided with a one-way air valve 101, external air can enter the oil tank 1 through the one-way air valve 101 to prevent vacuum generation in the oil tank 1 when fuel oil in the oil tank 1 flows out through the fuel oil pipe 4, the front part of the air pipe 2 is transversely arranged in the middle part of the inner rear end of the oil gun atomizing pipe 5, the rear side end is positioned at the rear outer side end of the atomizing pipe 5, the upper end of a fuel pipe 4 is welded on the lower part of the front end of an air pipe 2 and is communicated with the inner space of the front end of the air pipe 2, the lower end of the fuel pipe 4 is positioned in an oil tank 1, the lower end of an oil gun atomizing pipe 5 is arranged on a support frame 11, the support frame 11 is arranged on the front outer side end of a boiler hearth 12, a nozzle 51 of a front spray pipe of the oil gun atomizing pipe 5 is positioned in the hearth 12, an igniter 3 is arranged on the front outer side end of the hearth 12, a front end point fire head 31 of the igniter is positioned in the hearth 12 and is positioned at the upper end of the front spray pipe nozzle 51 of the oil gun atomizing pipe, an air blower 6 is arranged on the front lower side end of the hearth 12, a front end air outlet pipe 61 of the air blower is positioned at the lower end of the front spray pipe nozzle 41 of the oil; the exhaust fan 10 is arranged in the middle of the side end of a flue of the boiler (the temperature in the middle of the flue is about 130 ℃) through a screw and a nut, and an air inlet pipe of the exhaust fan 10 is positioned in the flue; the outer side of the oil gun atomizing pipe 5 is welded with a circular outer cylinder 52, a hollow structure is arranged between the outer side of the oil gun atomizing pipe 5 and the inner side of the outer cylinder 52 at an interval of 3 cm, the outer side of the annular outer cylinder 52 is wrapped with heat-insulating glass fibers 53, the outer side of the glass fibers 53 is also provided with a circular heat-insulating cylinder 54, and the heat-insulating cylinder 54 and the outer side of the outer cylinder 52 are welded together (the glass fibers 53 are positioned between the inner side of the heat-insulating cylinder 54 and the outer side of the outer cylinder 52; the middle parts of the upper end and the lower end of the outer cylinder 52 are respectively welded with a heat supply pipeline 14, the two heat supply pipelines 14 are communicated with the space between the outer side of the oil gun atomizing pipe 5 and the inner side of the outer cylinder 52, and the contact parts of the outer sides of the two heat supply pipelines 14 and the openings at the upper end and the lower end of the heat insulation cylinder 54 are welded together; the oil tank 1 is divided into an inner layer and an outer layer except the upper end and the lower end, the outer side of the outer layer of the oil tank 1 is wrapped and provided with heat insulation glass fibers 102 except the outer side of the upper end and the lower end, the outer side of the glass fibers 102 is also provided with a round heat insulation cylinder 103, and the heat insulation cylinder 103 and the outer side of the outer layer of the oil tank 1 are welded together (the glass fibers 102 are positioned between the inner side of the heat insulation cylinder 103 and the outer; the outer side of the inner layer of the oil tank 1 is provided with a heat release pipe 15 in a surrounding manner from top to bottom (the heat release pipe 15 is wound into a plurality of circles to surround and is welded on the outer side of the inner layer of the oil tank 1), the head end and the tail end of the heat release pipe 15 are respectively led out from the outer side of the outer layer of the oil tank and two upper and lower openings at the right end of the heat insulation cylinder 103, and the outer side of the heat release pipe 15 is welded with; the head end of the heat release pipe 15 is connected with the heat supply pipeline 14 at the lower part of the outer cylinder body through a pipeline and a pipeline joint, the tail end of the heat release pipe is connected with and provided with a waste gas pipe 16, the waste gas pipe 16 is arranged on the side wall of the flue, the waste gas pipe 16 is communicated with the inside of the flue, the waste gas pipe 16 is positioned at the upper end of the exhaust fan 10, and the heat supply pipeline 14 at the upper part of the outer cylinder body 52 is connected with the air outlet pipe 10 of; the temperature switch 9 is arranged in the middle of the upper end of the rear outer side of the oil gun atomizing pipe 5 through a screw and a nut, a lead connected with the temperature switch 9 is led out to the outer side through an opening in the middle of the upper end of the rear outer side of the outer cylinder 52 and the heat insulation cylinder 54, and the opening is sealed by heat-resistant sealant; the stabilized voltage power supply 8 and the control circuit 10 are installed on a circuit board, the circuit board is installed in the element box 17, and the element box 17 is installed on the rear outer side of the lower end of the heat insulation barrel 54.

As shown in fig. 2, regulated power supply a1 is a finished product of a 220V ac to 12V dc switching power supply module with power of 200W. The temperature switch W is a 120 ℃ temperature switch finished product of a kick type normally closed contact of a model KSD301 (the temperature sensing surface of the temperature switch W is tightly attached to the outer end of the gun atomizing pipe). Blower M is an electric air blower with 100W power and 220V working voltage. The control circuit is a relay J. The power input ends 1 and 2 of the stabilized voltage supply A1 and two poles of an alternating current 220V power supply are respectively connected through leads, the positive electrode 3 of the power output end of the stabilized voltage supply A1 is connected with one end of a temperature switch W through a lead, and the other end of the temperature switch W, the negative electrode 4 of the power output end of the stabilized voltage supply A1 and two ends of the power input of a control circuit relay J are respectively connected through leads; the input end of a relay J control power supply of the control circuit is connected with one pole of an alternating current 220V power supply through a wire, and the output end of the control power supply of the control circuit is connected with the normally open contact end of the relay J, the other pole of the 220V alternating current power supply and the input end of an exhaust fan M power supply through wires.

As shown in fig. 1 and 2, the other using processes and principles of the present invention are completely consistent with the working principle and using process of the existing boiler fuel oil atomizing burner, when the compressed air output by the air compressor (the operator opens the power switch of the air compressor) enters the fuel oil atomizing pipe 5 through the air pipe 2, the air flowing through at high speed will generate negative pressure at the upper end of the fuel oil pipe 4, thus, the fuel oil in the oil tank 1 will rise along the fuel oil pipe 4 under the action of negative pressure and initially spray out from the fuel oil nozzle 41, and then enter the front end of the fuel oil atomizing pipe through the air flow action, and then spray out again from the front nozzle 51 of the fuel oil atomizing pipe (the atomization effect is better) to enter the furnace 12, the operator opens the power switch of the igniter 3, and after the electric spark generated by the ignition head of the igniter 3 ignites the mist, the mist fuel oil continuously input into the furnace 12 can be continuously combusted, thereby heating heat-absorbing media such as water in the boiler at the upper end of the hearth 12 (after the fuel oil is ignited, the igniter 3 does not work any more); an operator turns on a power switch of the air blower 6, and the air flow entering the hearth 12 from the air blower 6 can be adjusted by adjusting the rotating speed of the air blower 6, so that the atomized fuel oil is favorably combusted. In the utility model, after the power switch of the regulated power supply A1 is opened, the 220V AC power supply can enter the 1 and 2 pins of the regulated power supply A1, the 3 and 4 pins of the regulated power supply A1 can output stable 12V power supply under the action of the internal circuit of the regulated power supply A1 and enter one end of the gun atomizing tube 5 and the negative power supply input end of the relay J, in actual conditions, when the temperature in the gun atomizing tube 5 is lower than 120 ℃, because the temperature sensing surface of the temperature switch W is tightly attached to the outer side end of the gun atomizing tube 5, the internal contact of the temperature switch W is in a closed state at the moment, the anode of the 12V power supply can enter the anode power supply input end of the relay J through the temperature switch W with the closed contact, then, the relay J is electrified to attract the control power supply input end of the relay J and the normally open contact end to be closed, because the control power supply input end of the relay J is connected with one pole of the, therefore, when the temperature in the oil gun atomizing pipe 5 is lower than 120 ℃, the exhaust fan M can be electrified to work, after the exhaust fan M is electrified to work, fan blades of the exhaust fan M rotate to extract waste heat air exhausted after a burner in a flue burns, then the waste heat air enters a space between the outer cylinder 52 and the outer layer of the atomizing pipe 5 through an air outlet of the exhaust fan M and the heat supply pipeline 14 in the middle of the upper end of the outer cylinder 52 (the waste heat air can heat atomized foggy fuel oil in the atomizing pipe 5 when flowing through the space between the outer cylinder 52 and the outer layer of the atomizing pipe 5), then enters the upper end of the heat release pipe 15 outside the inner layer of the oil tank from the heat supply pipeline 14 in the middle of the lower end of the outer cylinder 52, and the hot waste gas flowing through the heat release pipe 15 is beneficial to heating the fuel oil in the oil tank 1, and the subsequent; the waste gas after heat release enters the flue through the lower end of the heat release pipe 15 and the waste gas pipe 16 on the outer side of the inner layer of the oil tank, so that the waste gas after heat release can be discharged to the atmosphere (or enters waste gas treatment equipment for treatment as required). In practical situations, when waste hot air in the flue continuously enters a space between the outer cylinder 52 and the outer layer of the atomizing pipe 5 and a heat release pipe 15 on the outer side of the inner layer of the oil tank, and heats the atomizing pipe 5 and the oil tank 1, when the temperature in the oil gun atomizing pipe 5 is higher than 120 ℃, an internal contact of the temperature switch W is opened, so that the relay J stops being powered off and is in a power-off state, the control power supply input end and the normally closed contact end of the relay J are opened, the exhaust fan M is not operated when being powered off, waste hot air in the flue is not pumped into the space between the outer cylinder 52 and the outer layer of the atomizing pipe 5 and the heat release pipe 15 on the outer side of the inner layer of the oil tank, and the heating in the atomizing pipe 5 and the oil; when the temperature in the oil gun atomizing pipe 5 is lower than 120 ℃ again, the internal contact of the temperature switch W is closed again, so that the relay J is electrified again for suction, and the exhaust fan M is electrified again for work to suck the waste heat air in the flue into the space between the outer cylinder 52 and the outer layer of the atomizing pipe 5 and the heat release pipe 15 on the outer side of the inner layer of the oil tank, so as to heat the atomizing pipe 5 and the oil tank 1 again. Through under above-mentioned circuit and relevant mechanism, air exhauster M combined action, in this novel application, can be in about 120 ℃ always in the atomizing pipe 5, the oil tank 1, effectively guaranteed fuel atomization effect, and then improved fuel combustion effect to because fuel combustion is effectual, exhaust gas pollutant is few, reduced the pollution that brings the environment. In fig. 2, the relay J is a DC12V, 4123 type relay. In this is novel, air exhauster M mounted position is located flue side middle part, and this position combustor burning back exhaust gas temperature has fallen to about 130 ℃, and 130 ℃ temperature can not cause any influence to air exhauster M's work, and has also effectively guaranteed the temperature needs in heating atomizing pipe 5, the oil tank 1.

Having shown and described the fundamental principles and essential features of the invention, and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. The high-efficiency combustion low-pollution discharge oil burner comprises an oil burner body, a stabilized voltage power supply, a temperature switch and an exhaust fan, and is characterized by also comprising a control circuit; the exhaust fan is arranged at the side end of the boiler flue; the outer side of the oil gun atomizing pipe of the fuel burner body is provided with an outer cylinder body, a heat insulating material and a heat insulating cylinder body; heat supply pipelines are arranged at two ends of the outer cylinder; the oil tank of the oil burner body is divided into an inner layer and an outer layer, and the outer layer of the oil tank is provided with a heat insulation material and a heat preservation cylinder; the outer side of the inner layer of the oil tank is provided with a heat release pipe; the head end of the heat release pipe is connected with one heat supply pipeline of the outer cylinder, a tail end waste gas pipe of the heat release pipe is arranged on the side wall of the flue, and the other heat supply pipeline of the outer cylinder is connected with an air outlet pipe of the exhaust fan; the temperature switch is arranged on the outer side of the oil gun atomizing pipe; the stabilized voltage supply and the control circuit are arranged in the element box; the anode of the power output end of the stabilized voltage power supply is electrically connected with one end of the temperature switch, and the other end of the temperature switch, the cathode of the power output end of the stabilized voltage power supply and the two ends of the power input of the control circuit are respectively electrically connected; the control power supply input end of the control circuit is electrically connected with one pole of the alternating current power supply, and the control power supply output end of the control circuit, the other pole of the alternating current power supply and the two ends of the power supply input end of the exhaust fan are electrically connected respectively.

2. The oil burner of claim 1, wherein the heat supply pipe is in communication with the space between the outside of the atomizing pipe of the oil gun and the inside of the outer cylinder.

3. The high efficiency combustion low pollutant discharge oil burner of claim 1, wherein said flue gas duct is in communication with the interior of said flue.

4. The oil burner of claim 1, wherein the regulated power supply is an AC to DC switching power supply module.

5. A high efficiency combustion low pollutant discharge oil burner according to claim 1, wherein the temperature switch is a kick type normally closed contact temperature switch.

6. A high efficiency combustion low pollutant discharge oil burner as claimed in claim 1, wherein the control circuit is a relay.

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