CN220750113U - Strong fire fuel oil burner - Google Patents

Abstract

The utility model relates to a white oil burner, in particular to a strong fire fuel oil burner which is used for burning white oil in a strong fire state and comprises an injection pipe bottom plate, an injection gas baffle plate, a static pressure bin baffle plate, a fire port pressing plate, a fire port plate, a middle fire port and a side fire port; the injection pipe bottom plate is arranged below the injection gas partition plate, and is provided with an injection pipe; the static pressure bin partition plate is covered on the injection gas partition plate to form a secondary mixing space, and the injection gas partition plate is provided with an air inlet hole which is communicated with the injection pipe and the secondary mixing space; the fire hole pressing plate is covered on the static pressure bin partition plate to form a static pressure bin, and the static pressure bin partition plate is provided with an air vent for communicating the secondary mixing space with the static pressure bin; the middle fire hole is arranged at the center of the fire hole plate, and the side fire hole surrounds the middle fire hole and is arranged on the fire hole plate. Compared with the prior art, the utility model solves the problems that the fuel oil burner applying white oil in the prior art can not meet the standard of strong fire cooking and can not meet the market demand.

Description

Strong fire fuel oil burner

Technical Field

The utility model relates to a white oil burner, in particular to a strong fire fuel oil burner.

Background

At present, the global demand for energy is increasing, however, the traditional fossil energy is limited, so that new energy sources such as renewable energy sources, plant energy sources, natural energy sources and the like are all listed as energy development projects.

The vegetable white oil is a new fuel oil produced by refining waste edible oil such as waste vegetable oil, is non-spontaneous combustion, is safe, colorless and odorless, only produces water and carbon dioxide after combustion, is a clean and environment-friendly novel energy source, and can be used as fuel of household stoves and commercial stoves. However, the burner using the vegetable white oil is different from a common gas burner in that the vegetable white oil is normally liquid, and the liquid must be gasified at high pressure and high temperature before being burned in the burner. Since gasification is extremely temperature demanding, ensuring gasification temperature in a combustor is a key technique for stable combustion.

The existing fuel burner aims at the combustion of conventional fuel oil, but as the plant white oil has different performance from the conventional fuel oil, the method used is also greatly different, so that the existing fuel burner is difficult to be used for the combustion of the white oil and needs to be redesigned.

The current low-noise fuel oil burner sold or developed in the market is a technology which extends japan, cannot adapt to the traditional strong fire cooking in China, and further cannot fully meet the market demand, and therefore, a strong fire fuel oil burner which at least has strong fire performance and can use white oil needs to be designed.

Disclosure of Invention

The utility model aims to solve at least one of the problems and provide a strong fire fuel oil burner, which solves the problems that the fuel oil burner applying white oil in the prior art cannot meet the standard of strong fire cooking and cannot meet the market demand, and realizes the strong fire fuel oil burner which has strong fire performance, can be applied to white oil and can keep low noise.

The aim of the utility model is achieved by the following technical scheme:

a strong fire fuel oil burner is used for burning white oil in a strong fire state and comprises an injection pipe bottom plate, an injection gas partition plate, a static pressure bin partition plate, a fire port pressing plate, a fire port plate, a middle fire port and a side fire port;

the injection pipe bottom plate is arranged below the injection gas partition plate, and is provided with an injection pipe;

the static pressure bin partition plate is covered on the injection gas partition plate to form a secondary mixing space, and the injection gas partition plate is provided with an air inlet hole which is communicated with the injection pipe and the secondary mixing space;

the fire hole pressing plate is covered on the static pressure bin partition plate to form a static pressure bin, and the static pressure bin partition plate is provided with an air vent for communicating the secondary mixing space with the static pressure bin;

the middle fire port is arranged in the center of the fire port plate, and the side fire port surrounds the middle fire port and is arranged on the fire port plate;

the fire hole plate is arranged on the outer side of the fire hole pressing plate, and the fire hole pressing plate is provided with covering holes corresponding to the middle fire hole and the side fire holes.

Preferably, the end section of the injection pipe is provided with a diversion slope, and the joint is in smooth transition.

Preferably, the angle of the diversion slope is 140-150 degrees.

Mixed air flow (comprising externally injected fuel gas and carried air) entering the injection pipe is guided by the diversion slope to enter the secondary mixing space through an air inlet hole of the injection gas partition plate, and the diversion slope of 140-150 degrees can: 1) The injection performance is prevented from being reduced due to the reflection of the high-speed mixed air flow striking the wall surface; 2) The influence of the reflected air flow generated by impacting the wall surface on the flow velocity of the mixed gas is avoided, and the temperature of the air flow is reduced due to the speed reduction of the ejected mixed gas in the flowing process, so that the mixed gas is converted into liquid oil again after being condensed.

Preferably, the first section of the injection pipe is provided with an injection port inclined plane to form a concave structure. Before the ignition of the fuel oil burner, part of the mixed air flow is not compensated by the combustion temperature, so that a very small amount of fuel oil gas can be condensed into liquid oil at the inlet of an injection pipe (an injection port); the inclined plane of the injection port is arranged, a concave structure is formed, the part of liquid oil can be contained, the temperature at the injection port can gradually rise to the gasification temperature along with the normal operation of the fuel oil burner, so that the liquid oil contained in the concave structure is gasified again and is brought into the fuel oil burner by the mixed airflow to continue to participate in combustion.

Preferably, the size of the air inlet hole is 10-18% larger than the size of the outlet of the injection pipe, so that the air flow speed of the mixed air flow passing through the air inlet hole is ensured to be enough.

Preferably, the vent hole is arranged at the center of the static pressure bin partition plate, and the air inlet hole is eccentrically arranged on the injection gas partition plate. The eccentrically arranged air inlet holes enable the mixed air flow entering the secondary mixing space not to directly leave from the air holes, but to circumferentially rotate and continuously mix in the secondary mixing space, at the moment, turbulence and laminar flow exist simultaneously, and mixing is accelerated, so that air flow mixing is more uniform.

Preferably, the vent hole is a flanging hole. The mixed air flow flowing out from the secondary mixing space flows out along the flanging hole, part of the mixed air flow flows out of the middle fire hole, and part of the mixed air flow flows in the static pressure bin after being bounced by the fire hole pressing plate due to the fact that the air flow speed is high. Because the middle fire port and the side fire port have certain current limiting function, the mixed air flow is equalized in the static pressure bin, and then the mixed air flow flowing out of the fire port (comprising the middle fire port and the side fire port) is in the state of equalizing pressure and equal flow velocity, so that flames generated by combustion are uniform and highly uniform.

Preferably, the side fire hole and the middle fire hole are metal meshes welded and fixed on the fire hole plate, the mesh number is 22-24 meshes, and the wire diameter is 0.3-0.4mm. Too large or too small mesh size and wire diameter can affect combustion stability and exhaust emission index. Because the high-temperature-resistant metal net is adopted, the high-temperature metal net heat heats gasified oil gas in advance despite the high flow speed of the fuel gas, and still has good flame stabilizing performance, so that the gas flow flowing out from the fire hole can be combusted stably.

Preferably, the size of the covering hole corresponding to the side fire port is smaller than the size of the corresponding side fire port, and the size of the covering hole corresponding to the middle fire port is smaller than the size of the corresponding middle fire port. Because the gap is easy to remain after the side fire hole and the middle fire hole are connected with the fire hole plate, in order to avoid incomplete combustion and leakage caused by the outflow of mixed gas from the gap, the fire hole pressing plate and the covering holes with the size smaller than that of the corresponding middle fire hole and the corresponding side fire hole are arranged, and the gap is covered to prevent the air flow from flowing out from the gap.

Preferably, the fire hole plate is of an upward protruding structure, the center is a horizontal plane, the side edges are inclined planes, the included angle between the inclined planes and the horizontal plane is 25-30 degrees, the middle fire hole is arranged on the horizontal plane, and the side fire hole is arranged on the inclined planes. The middle fire hole is arranged at the center position, and the problem of uneven heating in the middle of the bottom of the pot during heating and cooking is solved by increasing the radiant heat of the middle bottom of the pot. In addition, because the bottom of the pan contacts the flame when cooking generally and makes the flame compress, can make the flame spill when serious, lead to combustion efficiency low, through setting up the side burner that is located on inclined plane (conical surface), when the bottom of the pan compresses the flame, partial flame can outwards burn along the bottom of the pan, and partial flame inwards burns along the bottom of the pan, has solved the problem of flame spill basically.

Preferably, the fire hole thermal strength of the fuel oil burner is 8-10W/mm ² 。

The working principle of the utility model is as follows:

the white oil is gasified outside the fuel oil burner and then is injected into the injection port of the injection pipe through the nozzle of the high-pressure pump, a large amount of air is simultaneously brought in, the fuel oil gas and the air are mixed in the injection pipe and then enter the secondary mixing space through the air inlet to be continuously mixed, the mixed air flow passing through the air vent is static pressure in the static pressure bin, and then the mixed air flow flows out through the middle fire port and the side fire port and is combusted.

Compared with the prior art, the utility model has the following beneficial effects:

through the structural design to the fuel oil burner, can effectively realize fierce fire culinary art (8-19 kW) and low noise operation, the fully satisfied market demand.

By the detailed design of the structure in the fuel burner, it is possible to: 1) The influence of serious back mixing of the mixed gas flow on the flow speed caused by the reduction of injection performance and the condensation and liquefaction of fuel gas are avoided; 2) The liquid oil which is slightly liquefied at the injection port before the burner is ignited is contained, and the liquid oil can be gasified again to participate in combustion after the normal operation for a period of time; 3) Through the size and position design of the openings, the sufficient and uniform mixing of the airflow speed, uniform pressure outflow, stable combustion and meeting of the exhaust emission requirements are ensured; 4) The problem of incomplete combustion caused by the outflow of air flow from the connecting gap is avoided through the relative size design of the openings; 5) Through the design of the position and the angle of the fire port, the radiation heat quantity at the center is increased, the problem of uneven heating is avoided, and the problem of flame overflow can be basically avoided; 6) Through the setting of static pressure storehouse, can effectively reduce the combustion noise on the basis of guaranteeing the air current misce bene, further according to the size correspondence optimization static pressure storehouse of fuel burner, can acquire best mixing effect and minimum combustion noise.

Drawings

FIG. 1 is a schematic cross-sectional view of a structure of a high-fire fuel burner;

FIG. 2 is a schematic structural view of the ejector base plate wherein a) front view, b) side view, c) top view;

FIG. 3 is a schematic top view of an injection gas baffle;

FIG. 4 is a schematic view of the structure of a static pressure compartment divider wherein a) is a front view and b) is a top view;

FIG. 5 is a schematic structural view of a fire port platen, wherein a) is a front view, b) is a top view;

FIG. 6 is a schematic structural view of a burner plate wherein a) is a front view and b) is a top view;

FIG. 7 is a schematic view of the structure of an intermediate fire port, wherein a) is a perspective view, b) is a top view;

FIG. 8 is a schematic view of a side fire port;

in the figure: 1-a side fire port; 2-an intermediate burner; 3-burner plate; 4-a fire hole pressing plate; 41-covering the hole; 5-a static pressure bin partition plate; 51-a static pressure bin; 52-vent holes; 6-injecting a gas separator; 61-secondary mixing space; 62-an air inlet hole; 7-injecting a pipe bottom plate; 71-an ejector tube; 72-diversion ramp; 73-injection port inclined plane.

Detailed Description

The utility model will now be described in detail with reference to the drawings and specific examples.

Example 1

1-8, the strong fire fuel oil burner is used for burning white oil in a strong fire state (8-19 kW), and comprises an injection pipe bottom plate 7, an injection gas partition plate 6, a static pressure bin partition plate 5, a fire port pressing plate 4, a fire port plate 3, a middle fire port 2 and a side fire port 1;

the injection pipe bottom plate 7 is arranged below the injection gas partition plate 6, and the injection pipe bottom plate 7 is provided with an injection pipe 71;

the static pressure bin partition board 5 is covered on the injection gas partition board 6 to form a secondary mixing space 61, and the injection gas partition board 6 is provided with an air inlet hole 62 which is communicated with the injection pipe 71 and the secondary mixing space 61;

the fire hole pressing plate 4 is covered on the static pressure bin partition plate 5 to form a static pressure bin 51, and the static pressure bin partition plate 5 is provided with a vent hole 52 for communicating the secondary mixing space 61 with the static pressure bin 51;

the middle fire port 2 is arranged in the center of the fire port plate 3, and the side fire port 1 surrounds the middle fire port 2 and is arranged on the fire port plate 3;

the fire hole plate 3 is arranged at the outer side of the fire hole pressing plate 4, and the fire hole pressing plate 4 is provided with a covering hole 41 corresponding to the middle fire hole 2 and the side fire hole 1.

More specifically, in the present embodiment:

as shown in fig. 1, the fierce fire fuel burner is formed by sequentially overlapping and connecting an injection pipe bottom plate 7, an injection gas partition plate 6, a static pressure bin partition plate 5, a fire port pressing plate 4 and a fire port plate 3, wherein a middle fire port 2 and a side fire port 1 are further arranged on the fire port plate 3. The injection pipe bottom plate 7 forms an injection pipe 71, a secondary mixing space 61 is formed between the injection gas partition plate 6 and the static pressure bin partition plate 5, and a static pressure bin 51 is formed between the static pressure bin partition plate 5 and the fire hole pressing plate 4; the injection gas baffle 6 is provided with an air inlet 62 which is communicated with the injection pipe 71 and the secondary mixing space 61, the static pressure bin baffle 5 is provided with an air vent 52 which is communicated with the secondary mixing space 61 and the static pressure bin 51, and the fire port pressing plate 4 is provided with a covering hole 41 which is communicated with the static pressure bin 51, the middle fire port 2 and the side fire port 1.

As shown in fig. 2, an ejector tube 71 is formed at the lower portion of the ejector tube base plate 7. The end position of the injection pipe 71 is provided with a diversion slope 72 with 140-150 degrees, and the joint is smoothly transited, so that the mixed air flow entering the injection pipe 71 can smoothly enter the secondary mixing space 61 through the air inlet 62 under the guidance of the diversion slope 72; the injection performance reduction caused by the reflection of the mixed gas flow striking the wall and the condensation of the fuel gas into liquid oil caused by the influence of the mixed gas flow striking the wall to the flow velocity are avoided. The injection port of injection pipe 71 head end department is provided with injection port inclined plane 73, forms a sunk structure, can hold a small amount of liquid oil that does not receive combustion temperature compensation and condense before the fuel burner ignites, and after the normal work of fuel burner, the temperature of injection port department can progressively rise to the gasification temperature, and the liquid oil that accumulates in sunk structure can gasify again and continue to participate in the burning.

As shown in FIG. 3, the air inlet holes 62 formed in the air injecting partition plate 6 are eccentrically arranged, the size of the air inlet holes 62 is about 10-18% larger than the size of the outlet of the air injecting pipe 71, and the air flow speed passing through the air inlet holes 62 is ensured to meet the subsequent combustion requirement.

As shown in fig. 4, the static pressure chamber partition plate 5 is covered on the injection gas partition plate 6 in a covering manner, and a secondary mixing space 61 is formed between the static pressure chamber partition plate 5 and each section of injection gas. The vent hole 52 arranged on the static pressure bin partition plate 5 is arranged at the center of the static pressure bin partition plate, so that the mixed air flow entering the secondary mixing space 61 through eccentric arrangement cannot directly pass through the vent hole 52, but secondary mixing occurs in the secondary mixing space 61; and the mixed air flows rotate circumferentially along the inner wall surface of the static pressure bin baffle plate 5, and turbulent flow and laminar flow coexist, so that the mixing effect is further promoted, and the mixed air flows are mixed more uniformly. The vent holes 52 are upward flanging holes, so that mixed air flow for secondary mixing flows out along the flanging holes when passing through the vent holes 52, wherein part of mixed air flow directly flows out from the middle fire port 2, and part of mixed air flow is blocked by the fire port pressing plate 4 due to the flow speed of the mixed air flow and the flow limiting effect of the middle fire port 2 and the side fire port 1, so that the mixed air flow flows in the static pressure chamber 51 formed by encircling the fire port pressing plate 4 and the static pressure chamber partition plate 5, the pressure in each place in the static pressure chamber 51 is equal, the pressure is equal, the flow speed is equal, and the flame formed by burning the mixed air flow flowing out from the middle fire port 2 and the side fire port 1 from the static pressure chamber 51 is uniform and has the same height; meanwhile, the static pressure bin 51 uniformly mixes the air flow and keeps the air flow at uniform pressure, so that the arrangement of the static pressure bin 51 can also effectively reduce combustion noise.

As shown in fig. 7 and 8, the side fire port 1 and the middle fire port 2 are both made of high-temperature resistant metal mesh, and the shape of the side fire port is matched with the opening of the fire port plate 3; the mesh number of the metal net is 22-24 meshes, the wire diameter is 0.3-0.4mm, and the combustion stability is ensured and the exhaust emission index is met. The side fire port 1 and the middle fire port 2 are fixedly connected with the fire port plate 3 in a welding mode after being respectively processed and molded. Because the high-temperature-resistant metal net is adopted, the high-temperature-resistant metal net can realize good flame stability despite the high flow rate of the fuel gas, so that the flame can be stably combusted.

As shown in fig. 5 and 6, the side fire port 1 and the middle fire port 2 are fixedly connected with the fire port plate 3 by adopting a welding mode, so that partial gaps are easy to exist at welding positions; in order to avoid incomplete combustion caused by the outflow of the mixed air flow from the gap, the covering hole 41 formed on the fire hole pressing plate 4 is designed to be smaller than the corresponding side fire hole 1 and middle fire hole 2 in size, covers the gap, and can indirectly fix the side fire hole 1 and the middle fire hole 2.

As shown in fig. 6, the central fire hole is arranged at the central position of the fire hole plate 3, and is used for increasing the radiant heat quantity of the center of the pan bottom during heating and cooking, so as to solve the problem of uneven heating of the center of the pan bottom. The side fire ports 1 are circumferentially arranged on inclined planes on the side edges of the central fire port at intervals, and the inclined planes and the horizontal plane on which the central fire port is arranged form an included angle of 25-30 degrees, so that the problem of flame overflow can be basically avoided; specifically, in a normally installed fuel burner, after the bottom of a pan contacts the flame, the flame can be compressed, and the flame overflows when severe, so that the combustion efficiency is low.

The strong fire fuel oil burner is used for burning white oil, and the heat intensity of the fire hole is different from that of conventional natural gas and liquefied gas, and is designed to be 8-10W/mm ² 。

When the gas burner is used, white oil is gasified outside the gas burner and then is injected into the injection port of the injection pipe 71 through the nozzle of the high-pressure pump, a large amount of air is simultaneously brought in, the gas and the air are mixed in the injection pipe 71 and then enter the secondary mixing space 61 through the air inlet 62 to be continuously mixed, the mixed gas passing through the air vent 52 is static pressure in the static pressure bin 51, and then flows out through the middle fire port 2 and the side fire port 1 to be burnt.

The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present utility model. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present utility model is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present utility model.

Claims (10)

1. The strong fire fuel oil burner is characterized by comprising an injection pipe bottom plate (7), an injection gas partition plate (6), a static pressure bin partition plate (5), a fire port pressing plate (4), a fire port plate (3), a middle fire port (2) and a side fire port (1);

the injection pipe bottom plate (7) is arranged below the injection gas partition plate (6), and the injection pipe bottom plate (7) is provided with an injection pipe (71);

the static pressure bin partition board (5) is covered on the injection gas partition board (6) to form a secondary mixing space (61), and the injection gas partition board (6) is provided with an air inlet hole (62) which is communicated with the injection pipe (71) and the secondary mixing space (61);

the fire hole pressing plate (4) is covered on the static pressure bin partition plate (5) to form a static pressure bin (51), and the static pressure bin partition plate (5) is provided with a vent hole (52) for communicating the secondary mixing space (61) with the static pressure bin (51);

the middle fire hole (2) is arranged in the center of the fire hole plate (3), and the side fire hole (1) surrounds the middle fire hole (2) and is arranged on the fire hole plate (3);

the fire hole plate (3) is arranged at the outer side of the fire hole pressing plate (4), and the fire hole pressing plate (4) is provided with a covering hole (41) corresponding to the middle fire hole (2) and the side fire hole (1).

2. A fierce fire fuel burner as claimed in claim 1, wherein the end of the injection pipe (71) is provided with a diversion slope (72), and the junction is smoothly transited.

3. A fierce-fire fuel burner as claimed in claim 2, wherein the angle of the deflector ramp (72) is 140-150 °.

4. A fierce fire fuel burner as claimed in claim 1, wherein the head section of the injection pipe (71) is provided with an injection port inclined plane (73) to form a concave structure.

5. A fierce oil burner according to claim 1, wherein the inlet aperture (62) is 10-18% larger than the outlet of the ejector tube (71).

6. A fierce fire fuel burner according to claim 1, wherein the vent (52) is arranged at the center of the static pressure chamber partition plate (5), and the air inlet (62) is eccentrically arranged on the injection gas partition plate (6).

7. A fierce fire fuel burner as claimed in claim 1, wherein said vent holes (52) are flanging holes.

8. The fierce fire oil burner according to claim 1, wherein the side fire port (1) and the middle fire port (2) are metal mesh welded and fixed on the fire port plate (3), the mesh number is 22-24 mesh, and the wire diameter is 0.3-0.4mm.

9. A fierce fire fuel burner as claimed in claim 1, wherein the size of the covering hole (41) corresponding to the side fire port (1) is smaller than the size of the corresponding side fire port (1), and the size of the covering hole (41) corresponding to the middle fire port (2) is smaller than the size of the corresponding middle fire port (2).

10. The fierce fire fuel burner according to claim 1, wherein the burner plate (3) has an upward protruding structure, the center is a horizontal plane, the side edges are inclined planes, the included angle between the inclined planes and the horizontal plane is 25-30 degrees, the middle burner (2) is arranged on the horizontal plane, and the side burner (1) is arranged on the inclined planes.