CN112856388B

CN112856388B - Particle combustion furnace

Info

Publication number: CN112856388B
Application number: CN202110016756.5A
Authority: CN
Inventors: 郑颖
Original assignee: Individual
Current assignee: Shenzhen Esmec Technology Co ltd
Priority date: 2021-01-07
Filing date: 2021-01-07
Publication date: 2022-10-14
Anticipated expiration: 2041-01-07
Also published as: CN112856388A

Abstract

The invention discloses a particle combustion furnace, which belongs to the field of combustion equipment and solves the problem of low combustion efficiency of particle fuel in the prior art, and the technical scheme for solving the problem is mainly that a through hole for air inlet and ash falling is formed in the bottom surface of a combustor, a grate is arranged above the through hole, an air guide channel is arranged on the outer side wall of the bottom of the combustor, the top end of the air guide channel is connected with an air supply channel, an annular windshield is arranged at the bottom end of the air guide channel, an annular air inlet gap is formed between the annular windshield and the bottom end of the combustor, a through hole is formed in the inner ring of the annular windshield, a rebound windshield is arranged below the annular windshield, and the rebound windshield faces the grate through hole. The invention is mainly used for promoting combustion-supporting effect and improving the fuel efficiency of the granular fuel.

Description

Particle combustion furnace

Technical Field

The invention relates to combustion equipment, in particular to a particle combustion furnace.

Background

Existing pellet combustion furnace, for example oven, the combustor that wherein adopts, basically is bottom confined structure, sets up the air intake through the lateral wall at the combustor and sends into the air and carry out combustion-supportingly, because pellet fuel all can pile up on the interior bottom surface of combustor after sending into the combustor, even the air intake sets up low again, also can't carry out effective combustion-supporting to the pellet fuel that lies in on the interior bottom surface of combustor, leads to partial pellet fuel to burn inadequately, can not obtain effective utilization. Like the heating stove again, can set up grate and air intake in the bottom surface of combustor, because ash after the burning of pellet fuel can not scatter at once, just pile up on grate and air intake for a long time, obstruct the air admission combustor, influence pellet fuel's combustion efficiency, need the user to go regularly in addition and clear up the grate, use and experience not good.

Disclosure of Invention

The invention aims to provide a particle combustion furnace which has good combustion-supporting effect and improves the fuel efficiency of particle fuel.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a granule fires burning furnace, the induction cooker comprises a cooker bod, be equipped with the combustor in the furnace body, the furnace body is equipped with the air supply passageway of air from the furnace body outside income, the bottom surface of combustor is equipped with the through hole that is used for the air inlet and falls the ash, through hole top is equipped with the grate, the lateral wall of combustor bottom is equipped with wind-guiding channel, wind-guiding channel's top and air supply passageway are connected, wind-guiding channel's bottom is equipped with annular windscreen, annular air inlet clearance has between the bottom of annular windscreen and combustor, annular windscreen's inner circle forms the perforating hole, annular windscreen's below is equipped with the bounce-back windscreen, the bounce-back windscreen sees through hole and faces the through hole.

Further, the bottom end of the combustor is open to form a through hole.

Furthermore, a feed inlet is formed in the side wall of the combustor, and the bottom end face of the combustor is arranged from the side wall where the feed inlet is located to the opposite side wall in an inclined mode from high to low.

Furthermore, a mounting frame is arranged in the furnace body, the air supply channel is located in the mounting frame, the burner is fixedly suspended on the mounting frame, an air guide cover is arranged at the bottom of the mounting frame, and the air guide cover is sleeved on the periphery of the bottom of the burner to form an air guide channel.

Furthermore, the bottom end of the wind scooper is turned inwards to form an annular windshield.

Furthermore, the bottom of the furnace body is provided with an installation through hole, the wind scooper is positioned at the installation through hole, and the rebound windshield is positioned outside the furnace body.

Furthermore, the bottom of the furnace body is provided with a freely removable ash receiving disc, and the rebound windshield is arranged in the ash receiving disc.

Furthermore, the bottom surface of the ash receiving disc is provided with a boss protruding upwards, and the top surface of the boss forms a rebound windshield; or the inner bottom surface of the ash receiving disc forms a rebound windshield.

Furthermore, a water storage tray is arranged at the bottom of the furnace body, the water storage tray is provided with a boss protruding upwards, and a rebound windshield is formed on the top surface of the boss; or a water storage disc is arranged at the bottom of the furnace body, and a rebound wind shield is formed on the water surface in the water storage disc.

Further, the projection of the through hole on the rebound windshield is located within the range of the rebound windshield.

After the technical scheme is adopted, the invention has the following advantages: the invention has the advantages that large-area ash falling and air inlet are realized through the through hole, the ash falling effect and the air inlet efficiency can be ensured, in order to effectively support combustion, a direct air inlet mode is not adopted, but a rebound air inlet mode is adopted, specifically, air is firstly guided to the bottom end of the combustor through the air guide channel, then the air flow direction is changed by utilizing the annular windshield to change into the air flow direction flowing from outside to inside, after passing through a narrow air inlet gap, a part of air can upwards enter the combustor, a part of air can downwards pass through the through hole, and after encountering the rebound windshield, the part of air is divided into a part of air flowing towards the periphery of the rebound windshield and a part of air flowing upwards in a rebound mode, the part of air flowing towards the periphery of the rebound windshield can blow ash on the rebound windshield away, the part of air flowing upwards in a rebound mode forms a first-to-last-layer flow effect with the aforementioned air directly upwards entering the combustor, the combustion supporting effect is good, the fuel efficiency of the particle fuel can be improved, the fuel efficiency can be calculated through experiments, 25% of use amount can be saved, the vibration effect can be formed, and the ash falling effect of better can be beneficial to the dispersion and the ash dispersion effect of the improvement of the ash dispersion and the ash dispersion effect of the combustion supporting. Because the air inlet gap is of an annular structure, air is blown into the lower part of the whole grate, ash on the whole grate can be blown out, and dead corners are avoided.

Drawings

The invention is further described below with reference to the accompanying drawings:

FIG. 1 is a schematic view of a particle burning furnace according to an embodiment of the present invention;

FIG. 2 is an enlarged view taken at I in FIG. 1;

FIG. 3 is an enlarged view taken at II in FIG. 2;

FIG. 4 is a schematic view of an ash receiving tray according to an embodiment of the present invention;

fig. 5 is a schematic view of an ash receiving tray according to a second embodiment of the present invention.

Detailed Description

The first embodiment is as follows:

as shown in fig. 1 to 4, the present invention provides a particle combustion furnace, which includes a furnace body 1, a burner 2 is arranged in the furnace body 1, the furnace body 1 is provided with an air supply channel 100 for supplying air from the outside of the furnace body 1, a through hole for supplying air and dropping ash is arranged on the bottom surface of the burner 2, a fire grate 21 is arranged above the through hole, an air guide channel 101 is arranged on the outer side wall of the bottom of the burner 2, the top end of the air guide channel 101 is connected with the air supply channel 100, an annular wind shield 31 is arranged at the bottom end of the air guide channel 101, an annular air supply gap 102 is arranged between the annular wind shield 31 and the bottom end of the burner 2, a through hole 311 is formed in the inner ring of the annular wind shield 31, a rebound wind shield 41 is arranged below the annular wind shield 31, and the rebound wind shield 41 faces the through hole 311.

The invention realizes large-area ash falling and air inlet through the through hole, both the ash falling effect and the air inlet efficiency can be ensured, in order to effectively support combustion, a direct air inlet mode is not adopted in the invention, but a rebound air inlet mode is adopted, specifically, air is firstly guided to the bottom end of the combustor 2 through the air guide channel 101, then the air flow direction is changed by the annular windshield 31 to flow from outside to inside, after passing through the narrow air inlet gap 102, a part of air can upwards enter the combustor 2, a part of air can downwards pass through the through hole 311, and after encountering the rebound windshield 41, the part of air can be divided into a part of air flowing around the rebound windshield 41 and a part of air flowing upwards in a rebound mode, the part of air flowing around the rebound windshield 41 can blow ash on the rebound windshield 41, the part of air flowing upwards and the air directly upwards entering the combustor 2 form a first-layer and second-layer flowing effect, as shown by arrows in figure 3, the combustion-supporting effect is good, the fuel efficiency of particle fuel can be improved, the experiment can be realized, 25% of vibration can be saved, the ash falling effect can be better formed, and the vibration effect of the fuel can be better calculated, and the fuel particle dispersion can be better beneficial to the measurement and calculation can be realized. Because the air inlet gap is of an annular structure, air is blown into the lower part of the whole grate, ash on the whole grate can be blown out, and dead corners are avoided.

In order to obtain the largest area of ash falling and air inlet, the bottom end of the combustor 2 can be directly designed to be open to form a through hole. The through-hole may be formed only in a part of the bottom surface of the burner 2, but is not so small as to be smaller than, for example, 1/4 of the bottom surface of the burner 2.

The side wall of the burner 2 is provided with a feeding hole 201, and the position of the grate 21 below the feeding hole 201 is always easy to accumulate the particle fuel, so that when air enters the burner 2, larger wind force blows the particle fuel below the feeding hole 201, and the bottom end face of the burner 2 can be designed to be inclined from the side wall where the feeding hole 201 is located to the opposite side wall from high to low. The air inlet clearance 102 that forms like this is wide right side narrow, lets the burning of the pellet fuel below feed inlet 201 faster, avoids piling up too high at this position, can effectively prevent from tempering in the feed inlet 201.

As a specific mode for installing the burner 2, a mounting frame 11 may be disposed in the furnace body 1, the air supply channel 100 is located in the mounting frame 11, the burner 2 is suspended and fixed on the mounting frame 11, so as to form an annular air inlet gap 102 and ensure a stable structure, the bottom of the mounting frame 11 is provided with an air guide cover 3, and the air guide cover 3 is sleeved on the periphery of the bottom of the burner 2 to form an air guide channel 101. In order to facilitate the processing and reduce the cost, the bottom end of the wind scooper 3 can be directly turned inwards to form the annular windshield 31. It will be appreciated that it is also possible for the annular damper 31 to be separately machined and mounted fixed beneath the burner 2.

Because the space inside the furnace body 1 is relatively limited, the bottom of the furnace body 1 can be provided with the installation through hole 103, the wind scooper 3 is positioned at the installation through hole 103, and the rebound wind shield 41 is positioned outside the furnace body 1. In this embodiment, since the ash after the combustion of the particulate fuel falls onto the bounce damper 41, and the aforementioned ash on the bounce damper 41 is blown to the periphery by the air flow, in order to receive the ash and prevent the ash from flying around, the ash receiving tray 4 that can be freely removed may be disposed at the bottom of the furnace body 1, and the ash receiving tray 4 may be designed in a drawer shape for the convenience of users to clean the ash received by the ash receiving tray 4, and the bounce damper 41 is disposed in the ash receiving tray 4. As a structure which is convenient to process, the bottom surface of the ash receiving disc 4 can be provided with a boss 42 which protrudes upwards, the boss 42 can be directly formed by punching, and the top surface of the boss 42 forms a rebound wind shield 41. It can be understood that the rebound dampers 41 can be fixed on the furnace body 1, the wind scooper 3 or the burner 2.

In this embodiment, the mounting bracket 11 extends from the outside of the furnace body 1 into the inside of the furnace body 1, and is installed in cooperation with the mounting bracket 11 at the side wall opening of the furnace body 1, and the outer end of the mounting bracket 11 is provided with an air inlet 104 communicated with the air supply channel 100 and is provided with a fan 12.

In order to make air pass through the narrow air inlet gap 102, a part of air will naturally enter the burner 2 upwards, and a part of air will pass through the through hole 311 downwards, and the size difference between the aperture D1 of the through hole 311 and the inner circumference aperture D2 of the bottom end of the burner 2 cannot be too large. In the present embodiment, the through hole 311 is a circular hole, and the burner 2 is cylindrical, so that the diameters are all diameters. But other possible shapes are not excluded, such as oval, rounded square, etc. common shapes. In order to ensure the air bounce effect, the projection of the through hole 311 on the bounce damper 41 is required to be within the range of the bounce damper 41, which is represented by the diameter D4 of the bounce damper 41 being larger than D1 in the present embodiment.

Example two:

as shown in fig. 5, the inner bottom surface of the ash receiving tray 4 can be directly designed to form a rebound damper 41.

Other contents not described in the present embodiment may refer to the above embodiments.

Example three:

besides the ash receiving disc, a water storage disc can be arranged at the bottom of the furnace body, the water storage disc is provided with a boss protruding upwards, and a rebound windshield is formed on the top surface of the boss; or the water surface in the water storage disc is directly utilized to form a rebound wind shield. The water storage tray is used for receiving ash, as the granular fuel can generate more heat when being combusted in the combustor, the water in the water storage tray is heated, the evaporation and vaporization of the water are accelerated, and the ash after the combustion of the granular fuel can be combined with water vapor in the process of falling into the water storage tray through the through hole, so that the weight of the ash is increased, the ash can more easily fall into the water storage tray and cannot be blown up to fly in the furnace body, and the self-cleaning effect can be achieved; the water vapor can be combined with carbon molecules generated in the combustion process of the granular fuel to generate CO, so that combustion is facilitated; the humidity inside the oven body is increased after the water is evaporated, and if the oven body is used for barbecue, the oven body also has the function of humidifying food, so that the food is more fragrant, tender and delicious.

Certainly, the ash receiving disc and the water storage disc can be arranged at the same time, and the rebound windshield is arranged in the ash receiving disc.

Other embodiments of the present invention than the preferred embodiments described above, and those skilled in the art can make various changes and modifications according to the present invention without departing from the spirit of the present invention, should fall within the scope of the present invention defined in the claims.

Claims

1. A particle combustion furnace comprises a furnace body, wherein a burner is arranged in the furnace body, the furnace body is provided with an air supply channel for supplying air from the outside of the furnace body, and the particle combustion furnace is characterized in that a through hole for air inlet and ash falling is formed in the bottom surface of the burner, a grate is arranged above the through hole, an air guide channel is arranged on the outer side wall of the bottom of the burner, the top end of the air guide channel is connected with the air supply channel, an annular windshield is arranged at the bottom end of the air guide channel, an annular air inlet gap is formed between the annular windshield and the bottom end of the burner, a through hole is formed in the inner ring of the annular windshield, a rebound windshield is arranged below the annular windshield, and the rebound windshield faces the through hole; the bottom of the furnace body is provided with a freely removable ash receiving disc, and the rebound windshield is arranged in the ash receiving disc; the bottom surface of the ash receiving disc is provided with a boss protruding upwards, and the top surface of the boss forms a rebound windshield.

2. The particle burning furnace of claim 1, wherein the bottom end of the burner is open to form a through opening.

3. Particle burning furnace as in claim 2, wherein the side walls of the burner are provided with feed openings, and wherein the bottom end surface of the burner is inclined from the side wall where the feed openings are located to the opposite side wall from high to low.

4. The particle combustion furnace as claimed in claim 1, wherein a mounting frame is provided in the furnace body, the air supply passage is provided in the mounting frame, the burner is suspended and fixed to the mounting frame, and an air guide cover is provided at a bottom of the mounting frame and is fitted around an outer periphery of the bottom of the burner to form the air guide passage.

5. The particle burning furnace of claim 4, wherein the bottom end of the wind scooper is turned inward to form an annular wind shield.

6. The particle combustion furnace as recited in claim 4, wherein the bottom of the furnace body is provided with a mounting through hole, the wind scooper is positioned at the mounting through hole, and the rebound damper is positioned outside the furnace body.

7. The particle combustion furnace as in claim 1, wherein the bottom of the furnace body is provided with a water storage tray, the water storage tray is provided with a boss protruding upwards, and the top surface of the boss forms a rebound damper; or the bottom of the furnace body is provided with a water storage disc, and a rebound windshield is formed on the water surface in the water storage disc.

8. The particle burning furnace of any of claims 1 to 7, wherein the projection of the through hole onto the bounce screen is within the range of the bounce screen.