Gas injection device and power generation device

Abstract

The utility model belongs to the technical field of power machines, and particularly relates to a gas injection device and a power generation device. The combustion chamber is calabash-shaped and consists of a first cavity and a second cavity which are communicated with each other; an air outlet pipe communicated with the second cavity is arranged on the combustion container; the spark plug is fixedly connected with the combustion container, and the end part of the spark plug extends into the first cavity; the fuel nozzle is fixedly connected with the combustion container, and the end part of the fuel nozzle extends into the first cavity; the first air inlet pipe is communicated with the first cavity; an air valve is arranged at the first air inlet pipe, and communication or disconnection between the first cavity and the outside is controlled through movement of the air valve; and the driving mechanism is used for controlling the movement of the air valve. The calabash-shaped structure can form a Laval pipe, so that high-speed air flow generated by combustion is sprayed out from the air outlet pipe.

Description

Technical Field

[0001] This utility model belongs to the field of power machine technology, specifically relating to a gas injection device and a power generation device. Background Technology

[0002] Patent application number 201210517559.2 discloses a combustible gas direct-drive engine, which includes a combustion chamber, a ventilation system, a power output device, and a spark plug. The ventilation system is located on one side of the combustion chamber, the spark plug passes through the side wall of the combustion chamber, and the power output device is connected to the outlet of the combustion chamber.

[0003] After the gas in the combustion chamber expands due to combustion, it enters the power output device. In the inertial rotation device, the combustion thrust drives the inertial gear to rotate continuously. The inertial force of the inertial gear drives the transmission wheel to output power, converting the combustion energy into rotational mechanical power.

[0004] Its combustion chamber has a single-chamber structure; therefore, a large amount of fuel is required to satisfy combustion within the chamber; that is, its fuel injection volume is large. Furthermore, the aforementioned inertial gear requires sufficient thrust from the combustion chamber to begin rotating during initial operation, resulting in significant starting difficulties. Additionally, if this power unit is to generate electricity, the transmission wheel needs to be connected to a corresponding generator, leading to a large overall footprint. Utility Model Content

[0005] To address the aforementioned technical problems, one objective of this utility model is to provide a gas injection device that employs a dual-chamber structure, requiring a small amount of fuel injection; another objective is to provide a power generation device that includes the aforementioned gas injection device.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A gas injection device, comprising:

[0008] A combustion container, wherein a combustion chamber is provided inside the combustion container; the combustion chamber is gourd-shaped and consists of two connected first cavities and second cavities; the combustion container is provided with an exhaust pipe connected to the second cavity;

[0009] A spark plug, which is fixedly connected to a combustion container, with the end of the spark plug extending into the first cavity;

[0010] A fuel nozzle, which is fixedly connected to a combustion container, with its end extending into the first cavity;

[0011] The first air intake pipe is connected to the first cavity; a valve is provided at the first air intake pipe, and the movement of the valve controls the connection or disconnection between the first cavity and the outside world.

[0012] Drive mechanism, which controls the movement of valves.

[0013] The drive mechanism includes a drive motor and a camshaft; one end of the valve extends out of the first intake pipe and can contact the cam on the camshaft; a return spring is provided between the valve and the first intake pipe; the drive motor is fixedly connected to the combustion container, and the camshaft is fixedly connected to the output shaft of the drive motor, and the camshaft is driven to rotate by the drive motor.

[0014] The fuel nozzle sprays alcohol-based fuel.

[0015] The spark plug is set at an angle.

[0016] A power generation device includes a mechanical generator and a gas injection device; a high-speed airflow ejected through the outlet pipe of the gas injection device provides power to the mechanical generator, enabling the mechanical generator to operate.

[0017] The mechanical generator includes a power wheel, a starting wheel, a coil, and an initial drive mechanism; a first magnet is fixed to the lower surface of the power wheel; a second magnet is fixed to the upper surface of the starting wheel; the coil is located between the power wheel and the starting wheel; both the power wheel and the starting wheel are fixed on the connecting shaft; the initial drive mechanism drives the starting wheel and the power wheel to rotate; after rotation, the high-speed airflow ejected through the outlet pipe of the gas injection device drives the power wheel and the starting wheel to rotate continuously.

[0018] The initial drive mechanism includes a stator and a rotor. The stator is rotatably connected to the connecting shaft; the rotor is fixedly connected to the connecting shaft or the starting wheel; the rotor rotates after the stator is energized.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] The combustion chamber is gourd-shaped, consisting of two interconnected chambers, a first chamber and a second chamber. An exhaust pipe connected to the second chamber is located on the combustion vessel. This gourd-shaped structure forms a "Laval tube," allowing the high-speed gas flow generated by combustion to be ejected from the exhaust pipe. Simultaneously, fuel is injected only into the first chamber; compared to a single-chamber structure of comparable overall volume, the required fuel injection volume is significantly reduced. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of Embodiment 1 of this utility model;

[0023] Figure 3 This is a schematic diagram of Embodiment 1 of this utility model;

[0024] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;

[0025] Figure 5 This is a schematic diagram of the overall structure of Embodiment 2 of this utility model;

[0026] Figure 6 This is a schematic diagram of the internal structure of Embodiment 2 of this utility model from one direction;

[0027] Figure 7 This is a schematic diagram of the internal structure of Embodiment 2 of this utility model from another direction;

[0028] Figure 8 This is a half-sectional structural diagram of Embodiment 2 of this utility model;

[0029] Figure 9 This is a half-sectional front view of Embodiment 2 of this utility model;

[0030] Figure 10 This is a schematic diagram of the overall structure of the outer shell of Embodiment 2 of this utility model;

[0031] Wherein: 10 is a gas injection device, 101 is a combustion vessel, 102 is a combustion chamber, 103 is a first cavity, 104 is a second cavity, 105 is an exhaust pipe, 106 is a spark plug, 107 is a fuel nozzle, 108 is a first intake pipe, 109 is a valve, 1010 is a drive mechanism, 1011 is a drive motor, 1012 is a camshaft, 1013 is a return spring, and 1014 is a cam.

[0032] 20 is a mechanical generator, 201 is a power swing wheel, 202 is the first magnet, 203 is the starting swing wheel, 204 is the second magnet, 205 is a coil, 206 is a connecting shaft, 207 is the initial drive mechanism, 208 is the stator, 209 is the rotor, 2010 is the outer casing, 2011 is the inclined slot, 2012 is the spiral slot, 2013 is the intake pipe, 2014 is the exhaust pipe, 2015 is the muffler, 2016 is the base, 2017 is the bearing, 2018 is the protrusion, and 2019 is the wire. Detailed Implementation

[0033] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0034] like Figure 1-4As shown, a gas injection device includes a combustion container 101, a spark plug 106, a fuel nozzle 107, a first air intake pipe 108, and a drive mechanism 1010. The combustion container 101 contains a combustion chamber 102; the combustion chamber 102 is gourd-shaped and consists of two interconnected first cavities 103 and second cavities 104, forming a "Laval tube"; an exhaust pipe 105 communicating with the second cavity 104 is provided on the combustion container 101.

[0035] Spark plug 106 is fixedly connected to combustion container 101, and the end of spark plug 106 extends into first cavity 103; fuel nozzle 107 is fixedly connected to combustion container 101, and the end of fuel nozzle 107 extends into first cavity 103; first intake pipe 108 is connected to first cavity 103; valve 109 is provided at first intake pipe 108, and the movement of valve 109 controls the connection or disconnection between first cavity 103 and the outside world; the movement of valve 109 is controlled by drive mechanism 1010.

[0036] In use, the valve 109 is opened by the drive mechanism 1010 to allow air to enter; then, the valve 109 is closed and fuel is injected into the first chamber 103 through the fuel nozzle 107; finally, the fuel is ignited by the spark plug 106, and the ignited gas is ejected at high speed under the action of forming a "Laval tube".

[0037] Furthermore, the aforementioned drive mechanism 1010 can adopt a structure similar to that on an automobile engine, including a drive motor 1011 and a camshaft 1012; one end of the valve 109 extends out of the first intake pipe 108 and can contact the cam on the camshaft 1012; the other end of the valve 109 is used to block the first intake pipe 108; a return spring 1013 is provided between the valve 109 and the first intake pipe 108; the two ends of the return spring 1013 abut against the valve 109 and the first intake pipe 108 respectively.

[0038] The housing of the drive motor 1011 is fixedly connected to the combustion container 101, and the camshaft 1012 is fixedly connected to the output shaft of the drive motor 1011. The drive motor 1011 drives the camshaft 1012 to rotate, so that the cam on the camshaft 1012 cooperates with the valve 109 to control the movement of the valve 109 to achieve opening and closing.

[0039] Furthermore, the fuel nozzle 107 sprays alcohol-based fuel, specifically methanol.

[0040] Furthermore, the spark plug 106 is preferably installed at an angle.

[0041] This embodiment provides a power generation device based on embodiment 1, which specifically includes a mechanical generator and a gas injection device; the high-speed airflow ejected through the gas outlet pipe 105 of the gas injection device provides power to the mechanical generator, enabling the mechanical generator to work and operate.

[0042] Furthermore, such as Figure 5-10 As shown, the aforementioned mechanical generator specifically includes a power wheel 201, a starting wheel 203, a coil 205, and a connecting shaft 206. Both the power wheel 201 and the starting wheel 203 are fixed on the connecting shaft 206 to achieve synchronous rotation of the two. When one of them rotates, it can drive the other to rotate accordingly.

[0043] Coil 205 is located between the power wheel 201 and the starting wheel 203, and is entirely sleeved around the connecting shaft 206. A first magnet 202 is fixed to the lower surface of the power wheel 201, and a second magnet 204 is fixed to the upper surface of the starting wheel 203. That is, coil 205 is located in the magnetic field formed by the first magnet 202 and the second magnet 204. When the power wheel 201, the starting wheel 203, and the first and second magnets 202 and 204 rotate, coil 205 is affected by the constantly changing magnetic field. Coil 205 is connected to corresponding wires; that is, the magnetic field generated by the magnetic poles induces a voltage in coil 205, and the change in the magnetic field causes an induced electromotive force to be generated inside coil 205, thereby converting mechanical energy into electrical energy.

[0044] In this device, during the initial startup process, the initial drive mechanism 207 drives the starting wheel 203 and the power wheel 201 to rotate. Once a certain rotational speed is reached, the initial drive mechanism 207 is no longer needed; instead, high-pressure airflow is injected into the power wheel 201 to drive both the power wheel 201 and the drive wheel to rotate continuously. This structural design overcomes the difficulty of initial startup using high-pressure airflow and directly converts mechanical energy into electrical energy.

[0045] Furthermore, the initial drive mechanism 207 can adopt a structure similar to that of an electric motor; specifically, it includes a stator 208 and a rotor 209. The stator 208 is rotatably connected to the connecting shaft 206; the rotor 209 is fixedly connected to the connecting shaft 206 or the starting wheel 203. Specifically, the stator 208 is a coil 205, and the rotor 209 is a permanent magnet. When the stator 208 is energized (connected with corresponding wires and a power source), the rotor 209 rotates, driving the starting wheel 203, the connecting shaft 206, and the power wheel 201 to rotate. After reaching a certain speed, the stator 208 is de-energized.

[0046] Furthermore, to improve overall integration, a housing 2010 is also provided. Specifically, the power wheel 201, coil 205, starting wheel 203, and initial drive mechanism 207 are arranged sequentially from top to bottom within the housing 2010. The coil 205 and stator 208 are both fixedly connected to the housing 2010, and the upper end of the connecting shaft 206 is rotatably connected to the housing 2010. That is, the stator 208 and coil 205 are in a fixed state, while the power wheel 201, starting wheel 203, connecting shaft 206, and rotor 209 are in a rotating state.

[0047] Furthermore, several inclined grooves 2011 are evenly distributed around the circumference of the power wheel 201; the high-pressure airflow can drive the power wheel 201 to rotate through the inclined grooves 2011.

[0048] Furthermore, a spiral groove 2012 is provided in the upper part of the outer casing 2010. An intake pipe 2013 and an exhaust pipe 2014 are connected to the upper part of the outer casing 2010. High-pressure airflow enters the outer casing 2010 through the intake pipe 2013, moves along the spiral groove 2012, and drives the power wheel 201 to rotate. Then, the high-pressure airflow is discharged through the exhaust pipe 2014. The intake pipe 2013 is connected to a high-pressure air source. The spiral groove 2012 guides the flow direction of the high-pressure airflow and increases the residence time of the high-pressure airflow, so that it can fully drive the power wheel 201 to rotate. Specifically, the intake pipe 2013 is connected to the exhaust pipe 105 on the combustion container 101; the high-speed airflow ejected through the exhaust pipe 105 of the gas injection device enters the outer casing 2010 through the exhaust pipe 105 and the intake pipe 2013 in sequence.

[0049] Alternatively, a connecting hole and a rotary joint can be provided at the upper end of the connecting shaft 206 to connect it to the air outlet pipe 105. The high-speed airflow ejected through the air outlet pipe 105 of the gas injection device passes through the air outlet pipe 105 and the connecting hole in sequence and exits from the power wheel 201, thereby driving the power wheel 201 to rotate in the opposite direction. With this configuration, the spiral groove 2012 and the air inlet pipe 2013 can be omitted.

[0050] Meanwhile, the power wheel 201 and the starting wheel 203 are spaced apart from the outer casing 2010 to ensure the normal rotation of the power wheel 201 and the starting wheel 203.

[0051] Furthermore, the spiral groove 2012 is spiraled upwards; the intake pipe 2013 is arranged along the tangential direction of the outer casing 2010, that is, the high-pressure airflow enters the outer casing 2010 along the tangential direction. In addition, to avoid unnecessary noise during exhaust, a muffler 2015 is provided on the exhaust pipe 2014.

[0052] Furthermore, to ensure rotational stability, a base 2016 is fixedly installed at the bottom of the outer casing 2010 and fixedly connected to the stator 208, with the stator 208 fixed on the base 2016. Bearings 2017 connected to the connecting shaft 206 are provided on both the base 2016 and the outer casing 2010; that is, both ends of the connecting shaft 206 are connected to the bearings 2017 to ensure rotational stability.

[0053] Furthermore, the first magnet 202 and the second magnet 204 mentioned above can be permanent magnets.

[0054] Furthermore, several protrusions 2018 are provided on the circumference of the starting wheel 203. By providing multiple protrusions 2018, the circumferential roughness of the starting wheel 203 can be increased. Simultaneously, dynamic balancing can be achieved by adding protrusions 2018.

[0055] The above description only describes the preferred embodiments of the present invention, and all variations should be included within the protection scope of the present invention.

Claims

1. A gas jetting device characterized by, include: A combustion container (101) is provided with a combustion chamber (102) inside the combustion container (101); the combustion chamber (102) is gourd-shaped and consists of two connected first cavities (103) and second cavities (104); the combustion container (101) is provided with an exhaust pipe (105) connected to the second cavity (104). Spark plug (106), the spark plug (106) is fixedly connected to the combustion container (101), and the end of the spark plug (106) extends into the first cavity (103); Fuel nozzle (107) is fixedly connected to combustion container (101), and the end of fuel nozzle (107) extends into first cavity (103); The first air intake pipe (108) is connected to the first cavity (103); the first air intake pipe (108) is provided with a valve (109), and the movement of the valve (109) controls the connection or disconnection between the first cavity (103) and the outside world; Drive mechanism (1010) controls the movement of valve (109).

2. A gas injection device according to claim 1, characterised in that: The drive mechanism (1010) includes a drive motor (1011) and a camshaft (1012); one end of the valve (109) extends out of the first intake pipe (108) and can contact the cam on the camshaft (1012); a return spring (1013) is provided between the valve (109) and the first intake pipe (108); the drive motor (1011) is fixedly connected to the combustion container (101), and the camshaft (1012) is fixedly connected to the output shaft of the drive motor (1011), and the camshaft (1012) is driven to rotate by the drive motor (1011).

3. A gas injection device according to claim 1, wherein: The fuel nozzle (107) sprays out alcohol-based fuel.

4. A gas injection device according to claim 1, wherein: The spark plug (106) is set at an angle.

5. A power generation device characterized by comprising: It includes a mechanical generator and a gas injection device according to any one of claims (1) to (3); the high-speed airflow ejected through the gas outlet pipe (105) of the gas injection device provides power to the mechanical generator, enabling the mechanical generator to operate.

6. A power generation device according to claim 5, characterised in that: The mechanical generator includes a power wheel (201), a starting wheel (203), a coil (205), a connecting shaft (206), and an initial drive mechanism (207). A first magnet (202) is fixed on the lower surface of the power wheel (201). A second magnet (204) is fixed on the upper surface of the starting wheel (203). The coil (205) is located between the power wheel (201) and the starting wheel (203). Both the power wheel (201) and the starting wheel (203) are fixed on the connecting shaft (206). The initial drive mechanism (207) drives the starting wheel (203) and the power wheel (201) to rotate. After rotation, the high-speed airflow ejected through the gas outlet pipe (105) of the gas injection device drives the power wheel (201) and the starting wheel to rotate continuously.

7. A power generation device according to claim 6, characterised in that: The initial driving mechanism (207) comprises a stator (208) and a rotor (209), the stator (208) is rotationally connected with the connecting shaft (206); the rotor (209) is fixedly connected with the connecting shaft (206) or the starting flywheel (203); the stator (208) is energized to rotate the rotor (209).

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