A liquid fuel combustion body

Abstract

This utility model discloses a liquid fuel combustor, including a base, a vaporization combustion cylinder, and a cyclone intake cylinder. A vaporization combustion chamber is formed between the inner wall of the vaporization combustion cylinder and the outer wall of the cyclone intake cylinder. Multiple cyclone air outlets are provided at the root of the vaporization combustion cylinder. The cyclone air outlets are evenly spaced around the vaporization combustion cylinder and face the bottom of the vaporization combustion chamber. Compared with the prior art, this utility model adds a ring of cyclone air outlets at the root of the vaporization combustion cylinder. The cyclone air outlets face the bottom of the vaporization combustion chamber, which can lift the liquid fuel deposited at the bottom of the vaporization combustion chamber, thereby further improving the vaporization combustion efficiency and avoiding the deposition of liquid fuel at the bottom of the vaporization combustion chamber when a large amount of oil is injected.

Description

Technical Field

[0001] This utility model relates to the field of stoves, and in particular to a liquid fuel burner. Background Technology

[0002] Currently, liquid fuel stoves primarily use electronic fuel injection systems for fuel supply. These are mainly used in commercial high-powered stoves for Chinese stir-frying and large wok cooking. They are also used in other kitchen appliances such as steamers, braising pots, cooking ovens, and clay pot stoves, as well as in heating products. These systems employ pulse fuel pumps to vaporize the fuel. The combustion process in electronic fuel injection stoves requires the liquid fuel to be pressurized to 12 kg to ensure that the liquid fuel sprayed from the atomizing nozzle is in a mist form. This mist-like liquid fuel then mixes with the air pumped in by the blower within the stove's air chamber for combustion. Electronic injection accelerates the flow of the atomized liquid, thus wasting heat energy.

[0003] Therefore, our company has designed a liquid fuel vaporization combustion chamber (see patent number CN202420362792.6). Through the structural design of the liquid fuel burner, a vaporization combustion chamber is formed by using a vaporization combustion cylinder and a cyclone air inlet. The liquid fuel is mixed with the spiral air sprayed from the cyclone air in the annular oil passage to achieve its full atomization combustion. The high temperature generated by the continuous combustion of the liquid fuel in the vaporization combustion chamber is used to fully vaporize and burn the newly injected liquid fuel, which fundamentally changes its vaporization combustion mode and can achieve the vaporization combustion conditions of liquid fuel without the need for a high-pressure atomizing nozzle.

[0004] During use, it was found that the spiral air generated by the air outlet at the top of the vaporization combustion cylinder is mainly used to tear the oil film on the atomization combustion net and vaporize it in the vaporization combustion chamber. However, when the fuel supply is large, a small amount of unvaporized liquid fuel will still be deposited in the vaporization combustion chamber. The spiral air can only carry it up from the bottom. Therefore, the structure of the combustion body needs to be further optimized. Utility Model Content

[0005] The purpose of this invention is to provide a liquid fuel combustor that solves the above-mentioned problems.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a liquid fuel combustor, including a base, a vaporization combustion cylinder and a cyclone air inlet cylinder, wherein a vaporization combustion chamber is formed between the inner wall of the vaporization combustion cylinder and the outer wall of the cyclone air inlet cylinder, and a plurality of cyclone air outlets are provided at the root of the vaporization combustion cylinder, the cyclone air outlets are evenly distributed around the vaporization combustion cylinder, and the cyclone air outlets face the bottom of the vaporization combustion chamber.

[0007] Preferably, the root of the vaporization combustion cylinder is inclined inward to form a conical surface, and the cyclone outlet is opened on the conical surface.

[0008] Preferably, the vaporization combustion cylinder does not have a cyclone outlet near the fuel injection port.

[0009] Preferably, the base is provided with an impeller air intake channel at its bottom.

[0010] Preferably, the cyclone outlets are all opened at an angle, and the direction of rotation is consistent with the direction of rotation of the impeller air inlet channel.

[0011] Preferably, the cyclone outlet has two or more outlets.

[0012] Preferably, the cyclone inlet cylinder has several vertically arranged air outlets around its perimeter, with the air outlets facing the combustion mesh on the inner wall of the vaporization combustion cylinder.

[0013] Preferably, the air outlet is divided into a high-level air outlet and a low-level air outlet, which are arranged alternately. The high-level air outlet is located at the upper part of the cyclone air inlet, and the low-level air outlet extends from the upper part of the cyclone air inlet to the lower part of the cyclone air inlet.

[0014] Compared with the prior art, the advantages of this utility model are as follows: This utility model adds a ring of cyclone outlets at the root of the vaporization combustion cylinder. The cyclone outlets are directly opposite the bottom of the vaporization combustion chamber, which can carry up the liquid fuel deposited at the bottom of the vaporization combustion chamber, thereby further improving the vaporization combustion efficiency and avoiding the deposition of liquid fuel at the bottom of the vaporization combustion chamber when a large amount of oil is fed in. Attached Figure Description

[0015] Figure 1 This is a diagram illustrating the internal structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the cyclone outlet arrangement structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of a combustion body in the prior art.

[0018] In the diagram: 1. Base; 2. Vaporization combustion chamber; 3. Cyclone air inlet; 4. Impeller air inlet channel; 5. Air outlet; 6. Cyclone air inlet; 7. Conical surface. Detailed Implementation

[0019] The existing liquid fuel combustor consists of a base 1, a vaporization combustion cylinder 2, a cyclone inlet cylinder 3, and an impeller inlet channel 4. A vaporization combustion chamber is formed between the inner wall of the vaporization combustion cylinder 2 and the outer wall of the cyclone inlet cylinder 3. (See [reference]). Figure 3 .

[0020] The present invention will be further described below: A liquid fuel combustor, see [link to relevant documentation]. Figure 1 The device includes a base 1, a vaporization combustion cylinder 2, and a cyclone inlet cylinder 3. A vaporization combustion chamber is formed between the inner wall of the vaporization combustion cylinder 2 and the outer wall of the cyclone inlet cylinder 3. Multiple cyclone outlets 6 are provided at the root of the vaporization combustion cylinder 2, evenly spaced around it and facing the bottom of the vaporization combustion chamber. This invention adds a ring of cyclone outlets 6 at the root of the vaporization combustion cylinder 2, directly facing the bottom of the vaporization combustion chamber. This allows the device to lift up liquid fuel deposited at the bottom of the vaporization combustion chamber, further improving vaporization combustion efficiency and preventing liquid fuel from depositing at the bottom of the vaporization combustion chamber when large amounts of oil are added. Since a small amount of liquid fuel will also deposit at the bottom of the vaporization combustion chamber after the equipment is shut down, the addition of the cyclone outlets 6 at the root of the vaporization combustion cylinder 2 can also lift up the liquid fuel deposited at the bottom of the vaporization combustion chamber after the previous use for vaporization combustion.

[0021] The root of the vaporization combustion cylinder 2 is inclined inward to form a conical surface 7, and the cyclone outlet 6 is opened on the conical surface 7. The multi-conical root design of the vaporization combustion cylinder 2 is conducive to the spiral airflow swirling the oil at the bottom of the root of the vaporization combustion cylinder 2.

[0022] To prevent liquid fuel from being injected into the vaporization combustion chamber 2 from the fuel injector nozzle through the cyclone outlet 6, the vaporization combustion chamber 2 is not provided with a cyclone outlet 6 near the fuel injector nozzle.

[0023] The base 1 has an impeller air inlet channel 4 at its bottom, through which a spiral airflow is formed and enters the vaporization combustion cylinder 2. The cyclone outlets 6 are all angled in the direction of rotation. (See attached image) Figure 2 The rotation direction of the cyclone outlet 6 is consistent with the rotation direction of the impeller inlet channel 4, so that the cyclone outlet 6 can better spiral out the air. There are two or more cyclone outlets 6, which can be set according to the needs, and the cyclone outlets 6 can be evenly distributed.

[0024] The impeller air inlet channel 4 is composed of helical teeth and helical tooth cover plates. There are several helical teeth, which are evenly distributed along the circumference of the air inlet at the bottom of the base 1. The helical tooth cover plates are welded to the helical teeth. When air is blown at the bottom of the base 1, the air will spiral into the cyclone air inlet 3 along the direction of the helical teeth and be sprayed out obliquely from the cyclone air inlet 3 to form a cyclone.

[0025] The cyclone inlet cylinder 3 has several vertically arranged air outlets 5 around its perimeter. These air outlets 5 face the combustion mesh on the inner wall of the vaporization combustion cylinder 2 and are primarily used for the vaporization and combustion of liquid fuel injected into the oil passage via a cyclone. To improve the airflow effect and ensure that the liquid fuel in both the upper and lower parts of the vaporization combustion chamber is fully vaporized and combusted, the air outlets 5 are divided into high-level air outlets and low-level air outlets. These high-level and low-level air outlets are arranged alternately. The high-level air outlets are located at the upper part of the cyclone inlet cylinder 3, while the low-level air outlets extend from the upper part to the lower part of the cyclone inlet cylinder 3. The high-level air outlets ensure that the liquid fuel in the upper part of the vaporization combustion chamber is in full contact with the air, thus improving its vaporization and combustion effect.

[0026] The present invention provides a detailed description of a liquid fuel combustor. Specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, based on the idea of ​​the present invention, there will be changes in the specific implementation and application scope. Modifications and improvements to the present invention are possible without exceeding the concept and scope defined by the appended claims. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A liquid fuel combustor, comprising a base, a vaporization combustion cylinder, and a cyclone inlet cylinder, wherein a vaporization combustion chamber is formed between the inner wall of the vaporization combustion cylinder and the outer wall of the cyclone inlet cylinder, characterized in that: The vaporization combustion cylinder has multiple cyclone air outlets at its root, which are evenly spaced around the vaporization combustion cylinder and face the bottom of the vaporization combustion chamber.

2. The liquid fuel combustor according to claim 1, characterized in that: The root of the vaporization combustion cylinder is inclined inward to form a conical surface, and the cyclone outlet is opened on the conical surface.

3. The liquid fuel combustor according to claim 1, characterized in that: The vaporization combustion cylinder does not have a cyclone outlet near the fuel injection port.

4. The liquid fuel combustor according to claim 1, characterized in that: The base is provided with an impeller air intake channel at its bottom.

5. A liquid fuel combustor according to claim 4, characterized in that: The cyclone outlets are all opened at an angle, and the direction of rotation is consistent with the direction of rotation of the impeller air inlet channel.

6. The liquid fuel combustor according to claim 1, characterized in that: The cyclone outlet has two or more outlets.

7. The liquid fuel combustor according to claim 1, characterized in that: The cyclone inlet cylinder has several vertically arranged air outlets around its perimeter, and the air outlets face the combustion mesh on the inner wall of the vaporization combustion cylinder.

8. A liquid fuel combustor according to claim 7, characterized in that: The air outlet is divided into a high-level air outlet and a low-level air outlet, which are arranged alternately. The high-level air outlet is located at the upper part of the cyclone air inlet, and the low-level air outlet extends from the upper part of the cyclone air inlet to the lower part of the cyclone air inlet.

Images