30kW gasoline and CNG dual-purpose fuel silent generator set

Abstract

The utility model discloses a 30kW gasoline and CNG dual-purpose fuel silent generator set, and belongs to the technical field of generator sets. Comprising a mute box body, and a generator set controller, a dual-purpose fuel engine, an adapter flange and an alternating-current synchronous generator which are arranged in the mute box body, according to the utility model, the mute box and the mute cotton are coated outside, so that the noise is reduced. According to the dual-purpose fuel engine, the 55-degree large dip angle arrangement is adopted, the overall weight and size of a generator set are reduced, arrangement and movement are convenient, and engine power and unit operation stability are improved. The dual-purpose fuel engine and the alternating-current synchronous generator are connected through independent flanges, the dual-purpose fuel engine can be matched with engines with different cylinder block gantries, engine cylinder blocks do not need to be developed independently, platform design is achieved, and unit cost is reduced; the rated power can reach 30 kW, and the high-power electricity utilization requirement is met; gasoline or natural gas can be selected for combustion according to use scenes, and the use requirements of high-cold and high-altitude areas are met.

Description

Technical Field

[0001] This utility model belongs to the field of generator set technology, specifically relating to a 30kW gasoline and CNG dual-fuel silent generator set. Background Technology

[0002] Currently, gasoline generator sets with a power output below 19kW typically use single-cylinder or twin-cylinder engines, while those above 19kW use diesel engines or are converted from diesel engines to gas-fueled engines. Gasoline generator sets above 20kW are rare, especially dual-fuel (gasoline and CNG) generator sets, which are virtually nonexistent in the industry. However, with rapid economic development, considering noise levels, comfort, and resource availability, the demand for dual-fuel (gasoline and CNG) generator sets above 20kW is increasing. Details are as follows:

[0003] On the one hand, there is an urgent need for high-power generator sets in use scenarios such as luxury villa complexes, large farm equipment, and outdoor drone charging, while also pursuing lightweight and quiet operation. However, diesel generator sets are heavy and noisy.

[0004] On the other hand, in high-altitude and cold regions far from the power grid, diesel and gas-fueled generator sets are usually difficult to start and cannot meet the power demand.

[0005] Therefore, providing a high-power, quiet, dual-fuel generator set is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a 30kW silent generator set that can run on both gasoline and CNG.

[0007] The technical solution adopted by this utility model is:

[0008] A 30kW gasoline and CNG dual-fuel silent generator set includes a silent enclosure, and a generator set controller, a dual-fuel engine, a transfer flange, and an AC synchronous generator installed inside the silent enclosure. The generator set controller can monitor and control the dual-fuel engine and the AC synchronous generator. A silent enclosure cover is provided on the top of the silent enclosure. The dual-fuel engine is arranged with a large tilt angle of 55°. The dual-fuel engine and the AC synchronous generator housing are connected by an independent transfer flange. The flywheel of the dual-fuel engine is connected to the rotor of the AC synchronous generator through a transfer plate.

[0009] Compared with the prior art, the present invention has the following advantages:

[0010] 1. The exterior of this utility model is covered with a soundproof box and soundproof cotton to reduce noise.

[0011] 2. The dual-fuel engine of this utility model adopts a large tilt angle of 55°, which helps to reduce the overall weight and volume of the generator set, facilitates its layout and movement, and improves engine power and unit operation stability.

[0012] 3. The dual-fuel engine and AC synchronous generator of this utility model are designed with an independent flange connection, which can be adapted to engines with different cylinder blocks and gantry, without the need to develop the engine cylinder block separately, realizing platform design and reducing unit cost; the rated power can reach 30kW to meet the high power demand; it can choose to burn gasoline or natural gas according to the usage scenario to meet the needs of high-altitude and cold regions.

[0013] 4. The dual-fuel engine of this utility model is equipped with a gas rail and a fuel rail, and can switch between fuel oil and gas states through the generator set controller. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the combined structure of the dual-fuel engine and AC synchronous generator of this utility model;

[0016] The components include: 1. Silent enclosure; 2. Generator set controller; 3. Dual-fuel engine; 4. Adapter flange; 5. AC synchronous generator; 6. Silent enclosure cover; 7. Casters; 8. Suspension and vibration damping pads; 9. Adapter plate; 10. Air rail; 11. Oil rail. Detailed Implementation

[0017] To better understand the purpose, structure, and function of this utility model, a more detailed description of this utility model will be provided below with reference to the accompanying drawings.

[0018] like Figure 1 , Figure 2As shown, this utility model provides a 30kW gasoline and CNG dual-fuel silent generator set, including a silent enclosure 1, and a generator set controller 2, a dual-fuel engine 3, an adapter flange 4, and an AC synchronous generator 5 installed inside the silent enclosure 1; the top of the silent enclosure 1 is provided with a silent enclosure cover plate 6, and the inner surfaces of the silent enclosure 1 and the silent enclosure cover plate 6 are covered with sound-absorbing cotton, which can reduce the noise generated during the operation of the unit; casters 7 are installed at the bottom of the silent enclosure 1 for easy movement; the dual-fuel engine 3 is installed on a base inside the silent enclosure 1, and the intake and exhaust sides of the dual-fuel engine 3 are respectively integrated with suspension and vibration damping pads 8 to reduce vibration; the dual-fuel engine 3 is laid out with a large tilt angle of 55°, which helps to reduce the inertia generated during the movement of the engine piston, improve engine power, make the engine run more smoothly, reduce vibration, and at the same time reduce the overall weight and volume of the generator set, making it easy to arrange and move;

[0019] The dual-fuel engine 3 and the AC synchronous generator 5 are connected by an independent adapter flange 4, and the flywheel of the dual-fuel engine 3 and the rotor of the AC synchronous generator 5 are connected by an adapter plate 9.

[0020] The dual-fuel engine 3 uses a 1.6L four-cylinder naturally aspirated engine with a maximum power of 80kW. Through meticulous calibration, it ensures that the engine operating point is in the optimal fuel consumption range when the generator set is generating power from 0 to 30kW, thus achieving energy saving and consumption reduction.

[0021] The dual-fuel engine 3 has an air rail 10 and a fuel rail 11 installed on the upper air intake side, which can be controlled by the generator set controller to switch between fuel oil and gas.

[0022] The generator set controller 2 can monitor and control the dual-fuel engine 3 and the AC synchronous generator 5. The generator set controller 2 integrates a display screen function, which can intuitively monitor the unit's operating data. It has remote start and APP remote start functions, and also integrates gasoline and natural gas conversion control functions. It defaults to gasoline ignition and can be set to automatically switch the gas state when a gas connection is detected.

[0023] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A 30kW gasoline and CNG dual-fuel silent generator set, characterized in that: The system includes a soundproof enclosure (1), a generator set controller (2), a dual-fuel engine (3), a transfer flange (4), and an AC synchronous generator (5) installed inside the soundproof enclosure (1). The generator set controller (2) can monitor and control the dual-fuel engine (3) and the AC synchronous generator (5). The top of the soundproof enclosure (1) is provided with a soundproof enclosure cover plate (6). The dual-fuel engine (3) is laid out with a large tilt angle of 55°. The dual-fuel engine (3) and the AC synchronous generator (5) are connected by an independent transfer flange (4). The flywheel of the dual-fuel engine (3) and the rotor of the AC synchronous generator (5) are connected by a transfer plate (9).

2. The 30kW gasoline and CNG dual-fuel silent generator set according to claim 1, characterized in that: The inner surfaces of the soundproof enclosure (1) and the soundproof enclosure cover (6) are covered with soundproofing cotton.

3. A 30kW gasoline and CNG dual-fuel silent generator set according to claim 1 or 2, characterized in that: The bottom of the silent enclosure (1) is equipped with casters (7).

4. The 30kW gasoline and CNG dual-fuel silent generator set according to claim 1, characterized in that: The dual-fuel engine (3) integrates suspension mounts and vibration damping pads (8) on the intake and exhaust sides, respectively.

5. A 30kW gasoline and CNG dual-fuel silent generator set according to claim 1 or 4, characterized in that: The dual-fuel engine (3) is equipped with both an air rail (10) and a fuel rail (11) on the upper air intake side.

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