Liquid fuel heating vaporization device

Abstract

The utility model discloses a liquid fuel heating vaporization device, including vaporization cylinder and install in the electric heating spare of vaporization cylinder inside, vaporization cylinder is by the double -layer cylinder body structure of outer layer cylinder body and inner layer cylinder body, there is the annular cavity of closed between outer layer cylinder body and inner layer cylinder body, install with the liquid inlet pipe of annular cavity intercommunication on vaporization cylinder, still be connected with the steam nozzle of annular cavity intercommunication on vaporization cylinder, the electric heating spare is located in the inner layer cylinder body inside, and the electric heating spare electricity is connected with the transmission line. The utility model liquid fuel is input to annular cavity through liquid inlet pipe, and the inner layer cylinder body inner wall is pasted and is distributed with electric heating spare, and electric heating spare power on can carry out even electric heating to annular cavity, makes annular cavity be in high temperature environment, reaches the vaporization temperature of liquid fuel, and liquid fuel vaporization is steam state and is spouted to the specified combustion area through steam nozzle.

Description

Technical Field

[0001] This utility model relates to the field of liquid fuel vaporization equipment, and in particular to a liquid fuel heating and vaporization device. Background Technology

[0002] Chinese patent CN211692674U discloses a coaxial forward-heating and suction-injection integrated impeller pump and a liquid fuel vaporization injection device. This involves heating liquid fuel to its boiling point and vaporizing it into a gaseous state. Converting liquid fuel to a gaseous state facilitates better contact with air and improves fuel efficiency. This technology is mainly used in the combustion cylinders of automobile engines, and its structure is relatively complex. Currently, existing technologies for converting liquid fuel to a gaseous state are all quite complex, and how to inject the vaporized fuel is also a current technical challenge. Therefore, there is an urgent need to develop a device that combines liquid fuel vaporization and injection. Utility Model Content

[0003] The purpose of this invention is to provide a liquid fuel heating and vaporization device that combines liquid fuel vaporization and gaseous fuel injection into one unit, which has the advantages of ingenious structure, novelty and reliable performance.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A liquid fuel heating and vaporization device includes a vaporization cylinder and an electric heating element installed inside the vaporization cylinder. The vaporization cylinder is a double-layer cylinder structure composed of an outer cylinder and an inner cylinder, with a closed annular cavity between the outer and inner cylinders. A liquid inlet pipe communicating with the annular cavity is installed on the vaporization cylinder, and a steam nozzle communicating with the annular cavity is also connected to the vaporization cylinder. The electric heating element is located inside the inner cylinder and is electrically connected to a power transmission line.

[0006] To better realize this utility model, the inner cylinder has a hollow cavity, which is a heating cavity, and the electric heating element is installed in the heating cavity of the inner cylinder.

[0007] Preferably, the electric heating element is a hollow cylindrical shape formed by spirally winding an electric heating wire. An inner liner rod is installed in the cavity of the hollow cylindrical body of the electric heating element. One end of the inner liner rod is fixed with an end cap plate, and the other end of the inner liner rod has a threaded section. The inner liner rod passes through the heating cavity of the inner cylindrical body and is tightly fitted with a fastening nut on the threaded section.

[0008] Preferably, the overall length of the electric heating element corresponds to the overall length of the heating cavity of the inner cylinder.

[0009] Preferably, the liquid inlet pipe is connected to one end of the vaporization cylinder, and the steam nozzle is connected to the other end of the vaporization cylinder.

[0010] Preferably, a high-pressure pulse pump is installed on the inlet pipe.

[0011] Preferably, the outer cylinder of the vaporization cylinder has a steam outlet that communicates with the annular cavity, and the steam outlet is connected to the steam inlet of the steam nozzle.

[0012] Preferably, both ends of the annular cavity have sealing ends.

[0013] Preferably, the outer cylindrical body is provided with a heat-insulating coating or is sealed with heat-insulating material.

[0014] Preferably, the outer wall of the electric heating element is fitted to the inner wall of the inner cylinder.

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

[0016] (1) This utility model develops a small vaporization device that integrates liquid fuel vaporization and gaseous fuel injection. Liquid fuel is input into the annular cavity through the liquid inlet pipe. Electric heating elements are attached to the inner wall of the inner cylinder. When the electric heating elements are powered, they can uniformly heat the annular cavity, so that the annular cavity is in a high-temperature environment and reaches the vaporization temperature of the liquid fuel. The liquid fuel is vaporized into gas and sprayed into the designated combustion area through the steam nozzle.

[0017] (2) The vaporization cylinder of this utility model is provided with a liquid inlet pipe at one end and a steam nozzle at the other end. The liquid fuel moves from the liquid inlet pipe to the steam nozzle under the action of air pressure, which can gradually and fully vaporize the liquid fuel. At the same time, the annular cavity surrounds the electric heating element, and the liquid fuel inside the annular cavity can be heated evenly, which improves the vaporization efficiency.

[0018] (3) The electric heating element of this utility model is made of an electric heating wire spirally wound into a cylinder, which is detachably installed inside the vaporization cylinder by means of an inner liner rod. The installation and disassembly are very convenient, and it has the advantages of ingenious structure, novelty and reliable performance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the vaporization cylinder and electric heating element after assembly.

[0020] Figure 2 This is a schematic diagram of the vaporization cylinder without the liquid inlet pipe installed in the embodiment;

[0021] Figure 3 for Figure 2 A cross-sectional view of the internal structure;

[0022] Figure 4 This is a schematic diagram of the structure in the embodiment where the electric heating element is mounted on the inner liner rod;

[0023] Figure 5 This is a schematic diagram of the inner liner rod in the embodiment;

[0024] Figure 6 This is a schematic diagram of the structure of the electric heating element in the embodiment.

[0025] The names corresponding to the reference numerals in the attached figures are as follows:

[0026] 1 - Vaporization cylinder, 2 - Outer cylinder, 3 - Inner cylinder, 31 - Heating cylinder cavity, 4 - Annular cavity, 41 - Sealing end, 5 - Liquid inlet pipe, 6 - Steam outlet, 7 - Steam nozzle, 8 - Electric heating element, 9 - Power transmission line, 10 - Inner liner rod, 101 - Threaded section, 11 - Fitting nut, 12 - End cover plate. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the embodiments:

[0028] Example

[0029] like Figures 1-4 As shown, a liquid fuel heating and vaporization device includes a vaporization cylinder 1 and an electric heating element 8 installed inside the vaporization cylinder 1, such as... Figure 3 As shown, the vaporization cylinder 1 is a double-layer cylinder structure composed of an outer cylinder 2 and an inner cylinder 2. A closed annular cavity 4 exists between the outer and inner cylinders 2 (the annular cavity 4 is used to allow liquid fuel to enter and be heated and vaporized into gas, which is then ejected through a steam nozzle 7). In this embodiment, both ends of the annular cavity 4 have sealed ends 41. A liquid inlet pipe 5 communicating with the annular cavity 4 is installed on the vaporization cylinder 1, and a steam nozzle 7 communicating with the annular cavity 4 is also connected to the vaporization cylinder 1. An electric heating element 8 is located inside the inner cylinder 3 and is electrically connected to a power transmission line 9. A high-pressure pulse pump is installed on the liquid inlet pipe 5. The high-pressure pulse pump sprays liquid fuel in the form of water mist or fine water droplets into the annular cavity 4 through the liquid inlet pipe 5. The power transmission line 9 supplies power to the electric heating element 8. The electric heating element 8 is located inside the inner cylinder 3 and heats up to form a high-temperature environment. The high temperature is transferred to the annular cavity 4, and the annular cavity 4 achieves rapid vaporization of the liquid fuel (as the electric heating element 8 continues to heat up, the heat inside the annular cavity 4 is evenly distributed, and the gas flows from the liquid inlet pipe 5 to the direction of the steam nozzle 7 and forms a stable airflow. The airflow will carry the liquid fuel to gradually vaporize fully). The gas pressure inside the annular cavity 4 increases and is sprayed into the required combustion area through the steam nozzle 7.

[0030] like Figure 3 As shown, the inner cylinder 3 has a hollow cavity, which is a heating cavity 31. (See Figure 3) Figure 3The heating cavity 31 is a hollow cavity along the length of the inner cylinder 3. The length of the heating cavity 31 is preferably the same as the length of the inner cylinder 3. The electric heating element 8 is fitted and installed in the heating cavity 31 of the inner cylinder 3. Preferably, the overall length of the electric heating element 8 corresponds to the overall length of the heating cavity 31 of the inner cylinder 3. The electric heating element 8 preferably fills the heating cavity 31 (of course, the length of the electric heating element 8 can also be less than the length of the heating cavity 31, and the electric heating element 8 only heats a portion of the area inside the heating cavity 31).

[0031] like Figure 6 As shown, the electric heating element 8 is a hollow cylindrical shape formed by spirally winding an electric heating wire. An inner liner rod 10 is installed inside the cavity of the hollow cylindrical body of the electric heating element 8 (the hollow cylindrical body of the electric heating element 8 is used to install the inner liner rod 10). Figure 5 As shown, one end of the inner liner rod 10 is fixed with an end cap 12, and the other end of the inner liner rod 10 has a threaded section 101. The inner liner rod 10 passes through the heating cylinder cavity 31 of the inner cylinder 3 and is tightly fitted with a fastening nut 11 on the threaded section 101. In use, the inner liner rod 10 is first inserted into the heating cylinder cavity 31 of the inner cylinder 3, with the end cap 12 of the inner liner rod 10 aligned with the end side of the vaporization cylinder 1. The threaded section 101 of the inner liner rod 10 extends slightly beyond the other end side of the vaporization cylinder 1. The electric heating element 8 is then inserted from the other end side of the vaporization cylinder 1 and fitted onto the outside of the inner liner rod 10. After assembly, the fastening nut 11 is then threaded onto the threaded section 101 to secure the electric heating element 8 tightly into the heating cylinder cavity 31 (see [reference]). Figure 4 , Figure 4 To demonstrate the internal structure, the vaporization cylinder 1 is not installed; the electric heating element 8 is fitted onto the inner liner rod 10, with both ends clamped to the vaporization cylinder 1 via end caps 12 and fastening nuts 11 respectively. After installation, the outer wall of the electric heating element 8 is fitted to the inner wall of the inner cylinder 3.

[0032] In some embodiments, such as Figure 1 , Figure 2 As shown, the liquid inlet pipe 5 is connected to one end of the vaporization cylinder 1, and the steam nozzle 7 is connected to the other end of the vaporization cylinder 1. Figure 3 As shown, the outer cylinder 2 of the vaporization cylinder 1 has a through-hole 6 that communicates with the annular cavity 4, and the steam outlet 6 is connected to the steam inlet end of the steam nozzle 7. Preferably, the outer wall of the outer cylinder 2 of this utility model is provided with a heat-insulating coating or is sealed with heat-insulating material.

[0033] In use, a high-pressure pulse pump is installed on the liquid inlet pipe 5. The high-pressure pulse pump pulses liquid fuel in the form of water mist or fine water droplets into the annular cavity 4 through the liquid inlet pipe 5. The power transmission line 9 supplies power to the electric heating element 8. The electric heating element 8 is located inside the inner cylinder 3 and heats up to form a high-temperature environment. The high temperature is transferred to the annular cavity 4, and the annular cavity 4 achieves rapid vaporization of the liquid fuel. As the electric heating element 8 continues to heat up, the heat inside the annular cavity 4 is evenly distributed. The gas flows from the liquid inlet pipe 5 to the direction of the steam nozzle 7 and forms a stable airflow. The airflow carries the liquid fuel and gradually vaporizes it completely. The air pressure inside the annular cavity 4 increases and is sprayed into the required combustion area through the steam nozzle 7. During the stabilization phase, the temperature near the liquid inlet pipe 5 in the annular cavity 4 will reach the boiling point temperature (i.e., vaporization temperature) of the liquid fuel. The liquid fuel will vaporize upon entering the annular cavity 4. The vaporized gas carries away the insufficiently vaporized liquid fuel and moves from the liquid inlet pipe 5 toward the steam nozzle 7. During the movement, the fuel is gradually vaporized, making the vaporization process more complete. After complete vaporization, the fuel gas is injected through the steam nozzle 7 and supplied to the designated combustion area.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A liquid fuel heating vaporization apparatus characterized by: The device includes a vaporization cylinder (1) and an electric heating element (8) installed inside the vaporization cylinder (1). The vaporization cylinder (1) is a double-layer cylinder structure consisting of an outer cylinder (2) and an inner cylinder (3). There is a closed annular cavity (4) between the outer cylinder (2) and the inner cylinder (3). A liquid inlet pipe (5) communicating with the annular cavity (4) is installed on the vaporization cylinder (1). A steam nozzle (7) communicating with the annular cavity (4) is also connected to the vaporization cylinder (1). The electric heating element (8) is located inside the inner cylinder (3) and is electrically connected to a power transmission line (9).

2. A liquid fuel heating vaporization device according to claim 1, characterized in that: The inner cylinder (3) has a hollow cavity, which is a heating cavity (31). The electric heating element (8) is installed in the heating cavity (31) of the inner cylinder (3).

3. A liquid fuel heating vaporization device according to claim 2, characterized in that: The electric heating element (8) is made of an electric heating wire spirally wound into a hollow cylindrical shape. An inner liner rod (10) is installed in the cavity of the hollow cylinder of the electric heating element (8). One end of the inner liner rod (10) is fixed with an end cap plate (12), and the other end of the inner liner rod (10) has a threaded section (101). The inner liner rod (10) passes through the heating cavity (31) of the inner cylinder (3) and a tight-fitting nut (11) is threaded on the threaded section (101) for tight-fitting installation.

4. A liquid fuel heating vaporization device according to claim 3, characterized in that: The overall length of the electric heating element (8) corresponds to the overall length of the heating cavity (31) of the inner cylinder (3).

5. The liquid fuel heating vaporization device according to claim 1 or 4, characterized in that: The liquid inlet pipe (5) is connected to one end of the vaporization cylinder (1), and the steam nozzle (7) is connected to the other end of the vaporization cylinder (1).

6. A liquid fuel heating vaporization device as defined in claim 1, wherein: A high-pressure pulse pump is installed on the inlet pipe (5).

7. A liquid fuel heating vaporization device as defined in claim 5, wherein: The outer cylinder (2) of the vaporizing cylinder (1) has a steam outlet (6) that communicates with the annular cavity (4), and the steam outlet (6) is connected to the steam inlet of the nozzle (7).

8. A liquid fuel heating vaporization apparatus according to claim 1, wherein: Both ends of the annular cavity (4) have sealing ends (41).

9. A liquid fuel heating vaporization apparatus according to claim 1, wherein: The outer wall of the outer cylinder (2) is provided with a heat insulation coating or is sealed with heat insulation material.

10. The liquid fuel heating vaporization apparatus of claim 1, wherein: The outer wall of the electric heating element (8) is fitted to the inner wall of the inner cylinder (3).

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