WO2004090419A1 - A burner with environmental protection and energy saving advantages - Google Patents

Abstract

The invention relates to a burner with environmental protection and energy saving advantages. The circular body of the burner has three jackets which are an air preheater, a silencing cavity and a second-silencing combustor. The outside wall of the air preheater has an air inlet opening which connects with a blast fan and a set of vent-pipes which connect with a third-silencing combustor and an U-type oil burning vent-pipe which connects with fuel equalizer. Some spired air-distributing holes are mounted on the outside wall of the silencing cavity. Some silencing vents are mounted on the outside wall of the second-silencing combustor. A balancer which mixes oil and gas is installed on a gasifying coiled pipe which swirls over the outside wall. A burning bowl is fixed on the bottom of the second-silencing combustor and the silencing cavity. A rotational flow accelerator is mounted on the top of second-silencing combustor. Around the rotational flow accelerator, there are an inner jacket and an outer jacket, which are third-silencing combustor and burning layer. The gasified fuel burning in the body has the advantages of higher speed of circumgyrate, multilevel burning and increased thermal efficiency.

Description

 Technical Field The utility model relates to an environmentally-friendly and energy-saving burner, and relates to a fuel oil burner. BACKGROUND OF THE INVENTION Existing fuel burners mainly include: blast-type fuel burners, which are mainly composed of a fuel supply pipe, an oil supply port, an air distribution hole perpendicular to the center line of the inner cylinder, an oil supply rotary head at the bottom of the furnace core, and a circular shape. The furnace body is composed of oil supplied to the rotary head through an oil supply pipe at the bottom of the furnace body, and enters a combustion state after being manually ignited. This type of device has a relatively simple structure, low cost, and easy installation, but it has large oil loss and low thermal efficiency. The other type is an atomized fuel burner, which is mainly composed of an air pressure buffer tank, a mixer, a control valve, a nozzle, a combustion chamber, a stove, etc. It is formed by mixing and atomizing oil and air. Burns under pressure like gas equipment. The ignition point of oil and gas in this type of device has been greatly improved, and the mixed contact between oil mist and air has also been greatly improved, which has improved the thermal efficiency. However, there is insufficient combustion of oil mist and air, the temperature of the exhaust gas is too high, and the structure is compared Complicated and inconvenient for maintenance. SUMMARY OF THE INVENTION The technical problem to be solved by the present utility model is to provide a new type of energy-saving and environmentally-friendly fuel oil burner with low oil loss, high thermal efficiency, low mixed combustion noise, and easy operation in view of the shortcomings of the existing combustion equipment.

 The technical solution of the utility model: The circular furnace body of the utility model has three layers of inner, middle, and outer jacketed structures, which are respectively a two-stage muffler combustion chamber, a muffler cavity, and an air preheater. The outer wall of the air preheater has an air inlet connected to the blower, and a set of ventilation pipes leading to the three-stage muffler combustion chamber, and a U-shaped fuel ventilation pipe connected to the fuel equalizer; on the outer wall of the muffler cavity, there is Several spiral air distribution holes; there are several muffler ventilation holes on the outer wall of the secondary muffler combustion chamber, and the outer wall is also coiled with a vaporization coil equipped with an oil-gas mixing balancer; in the secondary muffler combustion chamber and the muffler cavity A combustion bowl is installed at the bottom; a cyclone is installed at the upper part of the two-stage muffler combustion chamber, and there is an ignition hole cover. The inner and outer two-layer jacketed structure surrounds the cyclone, and they are three-stage muffled combustion. Room and muffler floor.

When in use, the fuel equalizer supplies oil to the vaporization coil. After ignition, the nozzle sprays the vaporized oil into the combustion bowl and the secondary muffler combustion chamber to burn and heat the air preheater. Therefore, the fuel in the vaporization coil is quickly vaporized. The oil-gas mixing balancer sprays to the combustion bowl, and the rising flame is combusted in two or three stages of the muffled combustion chamber. The air in the air preheater enters the muffler cavity along the spiral air holes to heat the vaporization coil, oil and gas. Mixed balance And enters the second-stage muffler combustion chamber through the muffler ventilation hole, and at the same time enters the third-stage muffler combustion chamber through the ventilation pipe, so that the flame accelerates to rotate and is accelerated after entering the cyclone, so that the three-stage muffler combustion chamber The flame is stronger and the combustion is more thorough _Q

 , ¾ with new type. Beneficial effects: As a result of adopting the above scheme, the vaporized fuel is burned in stages, and the flame is rotated at high speed, so that the combustion time is prolonged, the combustion is fuller, the flame is stronger, the thermal efficiency is improved, and the black smoke caused by insufficient combustion is reduced; In addition, since it is not necessary to provide an air compressor for fuel vaporization, a high-pressure oil pump, and a variable-performance atomizing nozzle, the structure is relatively simple, and the cost is reduced.

 A I

 Figure 1 is a cross-section view of the tube

 Figure 2 is the utility model

 Figure 3 is the A_ Luke Vision configuration of Figure 1

 Fig. 4 is a sectional view of the quick connection of the present invention

 Figure 5 is the I-view connector of Figure 4.

 Illustrated

 In the picture: 1. Air inlet; 2. Air preheater; 3 indications ;. Burning bowl; 4. Silencer cavity; 5. Silencer vent; 6. Ventilation pipe; 7. Vaporization coil; 8. Oil and gas mixing Balancer; 9. Two-stage silencing combustion chamber; 10. Swirl intent accelerator; 11. Three-stage silencing combustion chamber; 12. Ignition hole cover; 13. Nozzle; 14 .; Figure spiral cloth air hole; 15. Fuel oil Equalizer; 16. U-shaped fuel ventilation pipe; 17. Blower; 18. Swirl layer; 19. Swirl plate; 20. Silencer layer; 21. Ventilation hole. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1 to FIG. 5, the circular furnace body of the present invention has three layers of inner, middle, and outer jacketed structures, which are a two-stage muffler combustion chamber 9, a muffler cavity 4, and an air preheater. 2. The outer wall of the air preheater 2 has an air inlet 1 connected to the blower 17, and the other end of the ventilation pipe 6 leading to the three-stage silencing combustion chamber 11, and a U-shaped fuel ventilation pipe 16 connected to the fuel equalizer 15; There are several spiral air holes 14 on the outer wall of the sound chamber 4; there are several muffler ventilation holes 5 on the outer wall of the secondary muffler combustion chamber 9, and a vaporization coil 7 equipped with an oil-gas mixing balancer 8 is coiled; in the secondary muffler combustion There is a combustion bowl 3 at the bottom of the chamber 9 and the muffler cavity 4, and a nozzle 13 is arranged in the second-stage muffler combustion chamber 9, and a cyclone accelerator 10 is connected above the second-stage muffler combustion chamber 9, and an ignition hole cover 12 is provided thereon. The flow accelerator 10 is surrounded by two layers of inner and outer jacketed structures, which are a three-stage muffler combustion chamber 11 and a muffler layer 20, respectively.

Among them, the fuel equalizer 15 is composed of one to three U-shaped ring pipes with a diameter of 6-12 mm. One end of the fuel equalizer 15 is connected to the fuel volume regulator, and the other end is connected to the vaporizer. Coil 7, the vaporization coil 7 surrounding the outer wall of the secondary muffler combustion chamber 9 is between 2 and 5 turns, and the tube diameter is between 6 and 12 mm. The vaporization coil Ί is lined with catalytic material Layer, the vaporization coil 7 and the cylindrical oil-gas mixing balancer 8 are connected as a whole, and there are strip-shaped (hole) grooves communicating with each other. The oil-gas mixing balancer 8 has 2-5 groups and has a length of 20- 50mm, diameter between 8-20mm, the other end of the vaporization coil 7 is connected to the nozzle 13; on the spiral line of the outer wall of the muffler chamber 4, there are 10-25 spiral air holes 14 with a diameter of 2-8mm; The shape of the secondary muffler combustion chamber 9 is upper, lower, small conical or upper and lower small middle large waist drum shape; the diameter of the muffler ventilation hole 5 on the outer wall of the secondary muffler combustion chamber 9 is between 2 and 5 mm, and the noise is muffled. Ventilation holes 5 are at an elevation of 10-15 °, and the longitudinal and lateral center distance between the holes is between 10-30mm. They are distributed on the wall of the chamber clockwise along the tangent of the outer wall. The number of tubes 6 is 4-12, and the diameter is 6-12mm _{. The} cyclone 10 is a pagoda-shaped structure with a central conical hole reaching the top. On the top of the center hole, there is an ignition hole cover with a diameter of 20-40mm. There are 2-5 swirl layers 18 on the cyclone accelerator 10, and each swirl layer is between 6-20mm in height. Each swirl layer has 6-30 swirl plates 19, and the swirl plates 19 radiate from the inside to the outside at an elevation angle of 10-15 °. The three-stage muffler combustion chamber 11 has an upper, lower, and large conical shape. The muffler ventilation holes 5 with a diameter of 2-5 mm are at an elevation of 10-15 ⁰ and are distributed clockwise along the wall tangent line. The longitudinal and lateral center distance between the holes is between 10-30 mm. There are 4 to 12 ventilation holes 21 on the wall tangent line 20 for connecting the ventilation pipe 6.

 During operation, the fuel equalizer 15 supplies oil to the vaporization coil 7, and after ignition, the nozzle 13 injects vaporized oil into the combustion bowl 3 and the secondary muffled combustion chamber 9 to burn, so that the air preheater 2 is heated and the air is preheated. The hot air of the heater 2 enters the muffler cavity 4 along the spiral air hole 14, heats the vaporization coil 7, the oil-gas mixing balancer 8, and enters the secondary muffler combustion chamber 9 through the muffler ventilation hole 5, and enters through the muffler 6 The three-stage muffled combustion chamber 11 causes the flame to rotate at high speed and multi-stage combustion.

Claims

Rights request 1. Environmental protection and energy saving burner, which is composed of oil and gas mixer, nozzle, combustion chamber, oil supply pipe, circular furnace body, etc. It is characterized in that the circular furnace body has three layers of inner, middle and outer jacket structure. There are two-stage muffler combustion chamber, muffler chamber and air preheater; the outer wall of the air preheater has an air inlet connected to the blower, and a set of ventilation pipes at the other end leading to the three-stage muffler combustion chamber, and with fuel oil U-shaped fuel ventilation pipe connected to the equalizer; spiral air holes on the outer wall of the muffler cavity; muffler ventilation holes on the outer wall of the second-stage muffler combustion, and coiled vaporization coils equipped with an oil-gas mixing balancer; The bottom of the muffler combustion chamber and the muffler chamber is equipped with a combustion bowl; there is a nozzle in the second-stage muffler combustion chamber; a cyclotron is connected to the upper part of the second-stage muffler combustion chamber, and there is an ignition hole cover thereon. Outer two-layer jacket structure, they are three-stage muffler combustion chamber and muffler layer.  2. The environmentally-friendly and energy-saving burner according to claim 1, characterized in that: the fuel equalizer is composed of one to three U-shaped ring pipes from the bottom up, and the pipe diameter is between 6 and 12 mm, One end of the fuel equalizer is connected to the fuel volume regulator, and the other end is connected to the vaporization coil.  3. The environmentally-friendly and energy-saving burner according to claim 1, characterized in that: the vaporization coil surrounding the outer wall of the second-stage muffled combustion is between 2 and 5 turns, and the diameter of the tube is between 6 and 12 mm, The inner wall of the vaporization coil is lined with a layer of catalytic material. The vaporization coil is connected to a cylindrical oil-gas mixing balancer. Among them, there are stripe (hole) grooves communicating with each other. The oil-gas mixing balance installed on the vaporization coil The device has 2-5 groups with a length of 20-50 mm and a diameter of 8-20 mm. The other end of the vaporization coil is connected to the nozzle.  ° 4. The environmentally-friendly and energy-saving burner according to claim 1, characterized in that: 10 to 25 spiral air distribution holes with a diameter of 2 to 8 mm are distributed on the spiral line of the muffler cavity wall.  5. The environmentally-friendly and energy-saving burner according to claim 1, characterized in that the shape of the second-stage muffler combustion chamber is upper-lower-small conical or upper-lower-small-middle-large-waist-drum-shaped; The diameter of the muffler ventilation hole is between 2 and 5 mm, the muffler ventilation hole is at an elevation of 10 to 15 °, and the longitudinal and lateral center distance between the hole and the hole is between 10 and 30 mm, along the tangent of the outer wall Clockwise on the wall of the chamber.  6. The environmentally-friendly and energy-saving burner according to claim 1, characterized in that the number of ventilation pipes leading to the three-stage muffled combustion chamber is 4-12, and the diameter of the pipes is 6-12 mm.  7. The environmentally-friendly and energy-saving burner according to claim 1, characterized in that the cyclone is a pagoda-shaped structure, the central conical hole reaches the top, and an ignition hole with a diameter of 20-40 mm is formed on the top of the central hole. Cover, there are 2-5 swirl layers on the cyclone, each swirl layer is 6-20 mm in height, each swirl layer has 6-30 swirl plates, and the swirl plates are 10 — 1 5 ° Elevation angle radiates from the inner circle to the outer circle. 8. The environmental protection and energy saving burner according to claim 1, wherein The characteristics are: The three-stage muffler combustion chamber is upper, lower, and large conical, and the wall of the chamber has a muffler ventilation hole with a diameter of 2-5 mm, at an elevation angle of 10-15 °, clockwise along the wall tangent Distribution, the longitudinal and transverse center spacing between the holes is between 10 and 30 mm; there are 4 to 12 ventilation holes on the wall tangent of the muffler layer to connect the ventilation pipes.