Vertical flow guide fuel mixed combustion device

Abstract

The utility model discloses a vertical flow guide fuel mixed combustion device which comprises a mixed air cavity shell and a flow guide cylinder cavity located in the mixed air cavity shell, and a combustion cylinder is arranged at the top of the mixed air cavity shell in a sealed mode. The guide cylinder cavity consists of a cylinder body B and a top plate which is positioned at the top of the cylinder body B and is sealed with the top end of the cylinder body B; an air inlet B is formed in the bottom of the cylinder body B; a mixing cavity is formed between the outer wall of the cylinder B and the inner wall of the mixing air cavity shell, a fuel inlet B communicated with the mixing cavity is formed in the mixing air cavity shell, and a plurality of air grooves communicated with the mixing cavity are circumferentially distributed in the cylinder wall of the cylinder B; and a plurality of heat outlets are formed in the cylinder wall of the combustion cylinder. The multi-stage combustion structure is adopted, the flow guide cylinder cavity forms needed air flow in the mixing cavity through the air groove structure to be fully mixed with fuel, the combustion efficiency is improved, and the multi-stage combustion device can serve as a core component of a high-fire stove.

Description

TECHNICAL FIELD

[0001] The utility model relates to fuel combustion device field especially relates to a vertical flow guide fuel mixed combustion device. BACKGROUND

[0002] Combustion device is used for important heat source providing device on the equipment of decoction, and combustion device is to carry out combustion to fuel and produce heat source, and fuel generally includes liquid fuel and gas fuel (the utility model mainly aims at liquid and gas fuel), in order to let fuel burn fully, need to carry out sufficient mixing to fuel and air (oxygen in air). But the fuel and air of the existing combustion device are not effectively mixed fully, generally are directly ignited and burn at fuel outlet (such as general gas stove, generally burns at gas outlet, this will lead to some gas not to burn fully with air, leads to insufficient combustion, and there is more carbon monoxide emission), also lead to the utilization rate of fuel not to be high. CONTENT OF THE UTILITY MODEL

[0003] The utility model discloses a vertical flow guide fuel mixed combustion device, and the mixed cavity can be used as the first stage combustion chamber, the inner cavity of the cylinder A can be used as the second stage combustion chamber, and the outside of the cylinder A can be used as the third stage combustion area, so that the fuel is fully combusted in the three-stage combustion chamber or area, the fuel combustion efficiency is improved, and the probability of insufficient combustion of carbon monoxide is reduced.

[0004] The utility model discloses a vertical flow guide fuel mixed combustion device, and the mixed cavity can be used as the first stage combustion chamber, the inner cavity of the cylinder A can be used as the second stage combustion chamber, and the outside of the cylinder A can be used as the third stage combustion area, so that the fuel is fully combusted in the three-stage combustion chamber or area, the fuel combustion efficiency is improved, and the probability of insufficient combustion of carbon monoxide is reduced.

[0005] A vertical flow guide fuel mixed combustion device, comprising a mixed air cavity shell and a flow guide cylinder cavity located inside the mixed air cavity shell, the top of the mixed air cavity shell is sealed and provided with a combustion cylinder, the flow guide cylinder cavity is composed of a cylinder B and a top plate located at the top of the cylinder B and sealed with the top end of the cylinder B, the bottom of the cylinder B is provided with an air inlet B, a mixing cavity is formed between the outer wall of the cylinder B and the inner wall of the mixed air cavity shell, the mixed air cavity shell is provided with a fuel inlet B communicated with the mixing cavity, and a plurality of air grooves communicated with the mixing cavity are circumferentially distributed on the wall of the cylinder B.

[0006] In order to better realize the utility model, the combustion cylinder is composed of a cylinder A with a sealed top plate and a sealed base plate connected to the bottom end of the cylinder A, the bottom end of the cylinder A is provided with a cylinder port communicated with the mixing cavity, the heat outlets are evenly arranged on the cylinder A, and the sealed base plate is connected to the outside of the bottom end of the cylinder A.

[0007] Preferably, the bottom end of the cylinder body A of the combustion cylinder is circularly arc transitioned with the sealing base plate at the connecting position; and the edge of the sealing base plate is outwardly turned to form an annular groove.

[0008] Preferably, in all the wind slots, all the wind slots are downwind slots, or all the wind slots are upwind slots, or part of the wind slots are downwind slots and the remaining wind slots are upwind slots.

[0009] Preferably, in all the wind slots, half of the wind slots are downwind slots and the other half of the wind slots are upwind slots, all the downwind slots form a downwind slot unit and are arranged on one half of the cylinder wall of the cylinder body B, and all the upwind slots form an upwind slot unit and are arranged on the other half of the cylinder wall of the cylinder body B.

[0010] Preferably, a wire mesh is fixed to the inner wall of the mixed wind cavity shell, and the wire mesh is provided with a fuel inlet A corresponding to the fuel inlet B.

[0011] Preferably, a sealing bottom plate is sealingly connected to the bottom of the mixed cavity.

[0012] Preferably, the bottom plate of the mixed wind cavity shell is provided with an air inlet A in communication with the air inlet B.

[0013] Preferably, the fuel inlet B is sealingly provided with a fuel delivery pipe, and the fuel delivery pipe is provided with a delivery pump.

[0014] Preferably, the downwind slots are arranged to be inclined outward in a clockwise direction from the inner wall to the outer wall of the cylinder body B, and the upwind slots are arranged to be inclined outward in an anticlockwise direction from the inner wall to the outer wall of the cylinder body B.

[0015] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0016] (1) The mixed cavity of the utility model can be used as a first-stage combustion chamber, the inner cavity of the cylinder body A can be used as a second-stage combustion chamber, and the outside of the cylinder body A can be used as a third-stage combustion area, so that the fuel is fully combusted in the three-stage combustion chamber or area to improve the fuel combustion efficiency and reduce the probability of incomplete combustion of carbon monoxide; the high-temperature environment formed inside and outside the flow guide cylinder cavity also promotes the rapid vaporization of the entering liquid fuel, which is sequentially and fully combusted under the guidance of the air flow of the fan.

[0017] (2) The cylinder wall of the cylinder body B is provided with a plurality of wind slots in communication with the mixed cavity and distributed in a circumferential direction, three wind slot arrangement schemes are provided, the wind in the inside of the cylinder body B is combed and guided to the required air flow and fully mixed with the fuel for full combustion, the combustion efficiency is improved, and the utility model can be used as a core component of a fierce fire stove.

[0018] (3)The utility model discloses can be used for gaseous fuel, also can be used for liquid fuel, the edge of sealed base plate is turned out to form annular groove, and annular groove can be convenient for the collection of smoke or residual liquid oil. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is external structure schematic diagram of vertical flow guide fuel mixed combustion device of the utility model;

[0020] Figure 2 It is Figure 1 sectional view;

[0021] Figure 3 It is Figure 2 structure schematic diagram after removing mixed wind cavity shell;

[0022] Figure 4 It is structure schematic diagram of flow guide cylinder cavity;

[0023] Figure 5 It is structure schematic diagram of combustion cylinder;

[0024] Figure 6 It is schematic diagram of arranging adverse wind groove, following wind groove respectively in the left and right sides of fuel import A in embodiment.

[0025] Among them, the name corresponding to the reference sign in the drawing is:

[0026] 1-mixed wind cavity shell, 11-air inlet A, 2-combustion cylinder, 21-cylinder A, 211-heat outlet, 22-sealed base plate, 222-annular groove, 3-flow guide cylinder cavity, 31-cylinder B, 32-top plate, 33-adverse wind groove, 34-following wind groove, 35-air inlet B, 36-oil or gas import direction, 4-wire net, 5-mixing cavity, 51-sealed bottom plate, 6-fuel import A. DETAILED DESCRIPTION

[0027] The utility model will be further explained in detail in combination with embodiment:

[0028] EMBODIMENT

[0029] For example, Figures 1-5As shown, a vertical guide flow fuel mixing and combustion device (this invention is mainly used for combustion devices using liquid and gaseous fuels as fuels. After fully mixing the fuel and air, the combustion occurs in stages in the mixing chamber 5, the inner cavity of the combustion cylinder 2, and the outer cavity of the combustion cylinder, continuously generating a roaring flame that heats surrounding objects. Simultaneously, the roaring flame also improves the completeness of fuel combustion, greatly reducing the probability of incomplete carbon monoxide combustion) includes a mixing chamber shell 1 and a guide flow cylinder cavity 3 located inside the mixing chamber shell 1 (the guide flow cylinder cavity 3 can be connected to a fan, which provides a large airflow to mix more air with the fuel). The combustion cylinder 2 is sealed at the top of the mixing chamber shell 1, and the vaporized gas from the gaseous or liquid fuel mainly burns inside the combustion cylinder 2. The guide flow cylinder cavity 3 consists of a cylinder B31 and a top plate 32 located at the top of the cylinder B31 and sealed to the top of the cylinder B31. The top of the cylinder B31 is sealed by the top plate 32, and the guide flow cylinder cavity 3 is an integrally formed structure. The bottom of the cylinder B31 has an air inlet B35, through which air from the fan enters the internal cavity of the guide cylinder 3. A mixing chamber 5 is formed between the outer wall of the cylinder B31 and the inner wall of the mixing chamber shell 1 (fuel and airflow are mixed in the mixing chamber 5). The mixing chamber shell 1 has a fuel inlet B that communicates with the mixing chamber 5 (fuel is introduced into the fuel inlet B; the fuel can be a gaseous fuel, such as natural gas, or a liquid fuel. The liquid fuel is sprayed into the mixing chamber 5 by a pulse oil pump, and the spray can be in the form of water mist, which vaporizes in the high-temperature mixing chamber 5 and then is fully mixed). The cylinder wall of the cylinder B31 has several air slots distributed circumferentially, which communicate with the mixing chamber 5. The airflow inside the cylinder B31 moves through all the air slots in the annular space of the mixing chamber 5, forming an annular airflow (the bottom of the mixing chamber 5 is sealed with a sealing base plate 51, and the mixing chamber 5 is a relatively closed annular space), allowing the fuel and air to be fully mixed and burned. The combustion cylinder 2 has several heat outlets 211 on its cylinder wall. The heat outlets 211 discharge the heat, flame and high-temperature flue gas from the combustion, thereby heating external appliances (such as pots).

[0030] In some embodiments, such as Figure 5 As shown, the combustion cylinder 2 consists of a cylinder A21 with a sealed top plate and a sealed base plate 22 connected to the bottom end of the cylinder A21. The bottom end of the cylinder A21 has an opening communicating with the mixing chamber 5 (after the fuel and air are fully mixed, they enter the inner cavity of the cylinder A21 through the opening for further combustion). The heat outlet 211 is evenly distributed on the cylinder A21. The sealed base plate 22 is connected to the outer side of the bottom end of the cylinder A21 (the sealed base plate 22 is a circular seat plate located on the outer side of the bottom end of the cylinder A21); preferably, as Figure 5 As shown, the combustion cylinder 2 has a cylinder body A21, a sealing base plate 22, and a sealing top plate that are integrally molded.

[0031] As Figure 4 shown, the bottom end of the cylinder body A21 of the combustion cylinder 2 is circularly arc transitioned with the sealing base plate 22 at the connecting position; the edge of the sealing base plate 22 is outwardly turned to form an annular groove 222, which can facilitate the collection of smoke or residual liquid oil; if the fuel is liquid fuel, the liquid after high-temperature vaporization and cooling will fall into the annular groove 222 and be collected.

[0032] In some preferred embodiments, in all air flumes, there are three kinds of layout schemes as follows: the first scheme: all air flumes are downwind flumes; since all air flumes of the cylinder body A21 are downwind flumes, the air fan blows air into the inner cavity of the cylinder body A21, and after passing through all air flumes (the air flumes play a role of combing and guiding the air flow, and the air flow after combing and guiding enters the mixing chamber 5), the clockwise air flow is formed, the clockwise air flow is fully mixed with the fuel entering the fuel inlet A6 in succession, and then is uniformly distributed in the whole mixing chamber 5. During the combustion process of the combustion device of the utility model, at this time, the flow guide cylinder cavity 3 and the mixed air chamber shell 1 are high-temperature, and the mixing chamber 5 is also a high-temperature environment; if liquid fuel is used, the liquid fuel is sprayed into the mixing chamber 5 by the pulse oil pump (the spraying can be in the form of water mist), and the liquid fuel is vaporized into a gas body in the high-temperature environment of the mixing chamber 5.

[0033] The second scheme: all air flumes are upwind flumes; since all air flumes of the cylinder body A21 are upwind flumes, the air fan blows air into the inner cavity of the cylinder body A21, and after passing through all air flumes (the air flumes play a role of combing and guiding the air flow, and the air flow after combing and guiding enters the mixing chamber 5), the counterclockwise air flow is formed, the counterclockwise air flow is fully mixed with the fuel entering the fuel inlet A6 in succession, and then is uniformly distributed in the whole mixing chamber 5.

[0034] The third scheme: part of the air flumes are downwind flumes, and the remaining air flumes are upwind flumes.

[0035] The downwind flume 34 is set to be inclined outward in a clockwise direction from the inner wall to the outer wall of the cylinder body B31 (so that the air discharged from the downwind flume 34 of the cylinder body B31 forms a clockwise wind, and then a clockwise air flow guide is formed when entering the mixing chamber 5), and the upwind flume 33 is set to be inclined outward in a counterclockwise direction from the inner wall to the outer wall of the cylinder body B31 (so that the air discharged from the downwind flume 34 of the cylinder body B31 forms a counterclockwise wind, and then a counterclockwise air flow guide is formed when entering the mixing chamber 5).

[0036] As Figure 6 shown, the third scheme of the embodiment is further preferably provided with the following technical scheme: referring to Figure 6In all the wind slots, half of the wind slots are downwind slots 34 and the other half of the wind slots are upwind slots 33, all the downwind slots 34 form a downwind slot unit and are arranged on one half of the cylinder wall of the cylinder B31, and all the upwind slots 33 form an upwind slot unit and are arranged on the other half of the cylinder wall of the cylinder B31. Figure 6 The arrow shows the direction of the fuel inlet A6, and the fuel entering the direction of the fuel inlet A6 is vaporized into a gas body in a high-temperature environment (if it is a gas fuel, it does not need to be vaporized), the fuel inlet A6 is arranged at the junction of the downwind slot unit and the upwind slot unit, and a part of the fuel entering the direction of the fuel inlet A6 moves clockwise under the guidance of the downwind flow of the downwind slot unit and is fully mixed, and the other part moves counterclockwise under the guidance of the upwind flow of the upwind slot unit and is fully mixed.

[0037] As shown in Figure 2 , Figure 4 , a wire mesh 4 is fixed to the inner wall of the mixed air cavity shell 1, a part of the fuel is burned on the wire mesh 4, and the wire mesh 4 is provided with a fuel inlet A6 corresponding to the fuel inlet B. As shown in Figure 1 , the bottom plate of the mixed air cavity shell 1 has an air inlet A11 connected with the air inlet B35.

[0038] The fuel inlet B is sealed and mounted with a fuel conveying pipe, and the fuel conveying pipe is mounted with a conveying pump (the conveying pump is preferably a pulse oil pump).

[0039] In use, taking liquid fuel as an example, the mixed air cavity shell 1 can be connected with a fan, the fan enters the flow guide cylinder cavity 3 inside through the air inlet A11, and forms the required air flow after being combed and guided by all the wind slots (the air flow of any one of the three modes, and the air flow of the third mode of the wind slot design is preferred in this embodiment), and the liquid fuel entering through the fuel inlet A6 is fully mixed and burned with the air flow in the mixed cavity 5 in a high-temperature environment, the mixed cavity 5 of the utility model can be used as a first-stage combustion chamber, the inner cavity of the cylinder A21 can be used as a second-stage combustion chamber, and the outside of the cylinder A21 can be used as a third-stage combustion area, and the fuel is fully burned in the three-stage combustion chamber or area to produce a large fire, improve the fuel combustion efficiency, reduce the probability of incomplete combustion of carbon monoxide, and fully heat the surrounding appliances, the fuel combustion in the first-stage combustion chamber also promotes the rapid vaporization of the entering liquid fuel, and the inside and outside of the flow guide cylinder cavity 3 form a high-temperature environment, which is sequentially and fully burned under the guidance of the fan air flow.

[0040] The above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A vertical flow-guided fuel hybrid combustion device, characterized by: The application relates to a mixed air cavity shell and a guide cylinder cavity inside the mixed air cavity shell, wherein the top of the mixed air cavity shell is sealed with a combustion cylinder; the guide cylinder cavity is composed of a cylinder B and a top plate on the top of the cylinder B and sealed with the top end of the cylinder B; the bottom of the cylinder B is provided with an air inlet B; a mixing cavity is formed between the outer wall of the cylinder B and the inner wall of the mixed air cavity shell; the mixed air cavity shell is provided with a fuel inlet B communicated with the mixing cavity; the cylinder wall of the cylinder B is provided with a plurality of air grooves communicated with the mixing cavity; and a plurality of heat outlets are formed in the cylinder wall of the combustion cylinder.

2. A vertical flow-guided fuel mixing combustion device according to claim 1, characterized in that: The combustion cylinder is composed of a cylinder A with a sealed top plate and a sealed base plate connected to the bottom end of the cylinder A; the bottom end of the cylinder A is provided with a cylinder port communicated with the mixing cavity; the heat outlets are uniformly arranged on the cylinder A; and the sealed base plate is connected to the outside of the bottom end of the cylinder A.

3. A vertical flow-guided fuel mixing combustion device according to claim 2, characterized in that: The bottom end of the cylinder A of the combustion cylinder and the sealed base plate are circularly arc transitioned at the connecting position; and the edge of the sealed base plate is outwardly turned to form an annular groove.

4. A vertical flow-guided fuel mixing combustion device according to claim 1, characterized in that: All the air grooves are downwind grooves, or all the air grooves are upwind grooves, or part of the air grooves are downwind grooves and the remaining air grooves are upwind grooves.

5. A vertical flow-guided fuel mixing combustion device according to claim 1 or 4, characterized in that: Half of the air grooves are downwind grooves and the other half of the air grooves are upwind grooves; all the downwind grooves form a downwind groove unit and are arranged on one half of the cylinder wall of the cylinder B; and all the upwind grooves form an upwind groove unit and are arranged on the other half of the cylinder wall of the cylinder B.

6. A vertical flow-guided fuel mixing combustion device according to claim 1, characterized in that: A wire mesh is fixed to the inner wall of the mixed air cavity shell; the wire mesh is provided with a fuel inlet A corresponding to the fuel inlet B.

7. A vertical flow-guided fuel mixing combustion device according to claim 1, characterized in that: A sealed bottom plate is sealingly connected to the bottom of the mixing cavity.

8. A vertical flow-guided fuel mixing combustion device according to claim 1, characterized in that: The bottom plate of the mixed air cavity shell is provided with an air inlet A communicated with the air inlet B.

9. A vertical flow-guided fuel mixing combustion device according to claim 6, characterized in that: A fuel conveying pipe is sealingly mounted on the fuel inlet B; and a conveying pump is mounted on the fuel conveying pipe.

10. A vertical flow-guided fuel mixing combustion device according to claim 5, characterized in that: The downwind grooves are arranged to be out of the wind in a clockwise direction from the inner wall to the outer wall of the cylinder B; and the upwind grooves are arranged to be out of the wind in an anticlockwise direction from the inner wall to the outer wall of the cylinder B.

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