High-pressure airflow engine
By driving the impeller rotating power generation through a high-pressure airflow engine, the problem of low efficiency of traditional air expanders is solved, and efficient power storage and peak shaving capabilities are achieved. It is suitable for various user needs, improving the power balance and emergency energy storage capabilities of the power grid.
Patent Information
- Application Number
- CN202310878267.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-07-17
- Publication Date
- 2025-01-17
AI Technical Summary
The existing technology is difficult to effectively solve the night power storage problem of user terminals and power plants in various places, especially in the absence of underground caves or hydropower stations, and the efficiency of traditional air expanders is low, which cannot meet the needs of distributed energy storage peak shaving.
Using a high-pressure airflow engine, the air is compressed by the air compressor and stored in a high-pressure air tank. The impeller is driven to rotate through the high-pressure airflow engine, driving the generator power generation or other equipment to work, and using high-pressure airflow injection and planetary gear transmission to achieve efficient power conversion. and energy storage release.
It improves the utilization rate of compressed air, achieves efficient power storage and peak shaving capabilities, and is suitable for all kinds of user needs, especially in cities and industrial areas, improving the power balance and emergency energy storage capabilities of the power grid.
Smart Images
Figure FT_1
Abstract
Description
1. Technical Field
[0001] The present invention relates to a new energy device, which utilizes compressed air tank-type energy storage and uses compressed air to drive a high-pressure airflow engine. It can be used as a technical invention for power generation at the user end of a small-capacity power station or applied to other equipment. The air compressor is used to compress air to store electricity during the low-power consumption period at night, and the high-pressure airflow engine of the present invention is used to drive the generator to generate electricity. During the peak power consumption period during the day, electricity is generated to supplement the user power station. It is a special equipment for the new energy industry. It can be used as the core equipment of a distributed compressed air energy storage peak-shaving power station, used in large, medium and small cities and industrial parks or factories in various places, and as a large energy storage power station in a wind farm to improve the power factor and balance of wind power. It can also be used as an energy storage power station for photovoltaic power stations. 2. Background technology
[0002] At present, there are several ways of power storage, such as hydropower station water storage, battery storage, photovoltaic storage, and compressed air storage. The power consumption during the peak period of daytime and nighttime is very different, and the difference in electricity prices during the day and night is also very large. The power generation of power plants is balanced, and if the electricity generated at night cannot be stored, it will be a great loss. The most effective, reliable and economical way is compressed air energy storage, which mainly uses natural caves to store compressed air. In 2022, China's first compressed air energy storage power station began bidding for construction in Hubei Province, with a power of 300Mw. It is a large compressed air energy storage power station. However, this type of power station is limited by natural conditions. But electricity users are everywhere. In the past, compressed air was used to generate electricity by using air expanders to drive generators, which belonged to high-power energy storage equipment at the power generation end. However, the efficiency of the present invention is much higher than that of air expanders, which significantly improves the utilization rate of compressed air. It belongs to a small-power energy storage peak-shaving power station at the user end. In terms of market demand, a larger number of users are distributed in various places, and it is impossible to have underground caves or build hydropower stations everywhere. The user-end energy storage power station is more able to meet the needs of various users. Various provinces and cities have issued documents to develop energy storage power stations as emergency power stations. It is stipulated that a certain proportion of energy storage power must be used for emergency needs. How to solve the problem of nighttime power storage at the user end, power plants, cities and industrial areas in various places, and how to store energy at appropriate power for peak load regulation is exactly the problem to be solved by this invention technology. 3. Summary of the invention
[0003] 1. Principle: An engine that uses compressed air to drive the impeller to rotate.
[0004] 2. Structure: The high pressure air flow engine is composed of the following components.
[0005] The main components of the high-pressure airflow engine include a main shaft 1, i.e., the transmission main shaft of the engine, which is connected to a planetary gear 2, and a concentric shaft, on which several impellers 3 of the engine are installed, as the driving wheel of the engine, and the impeller has composite fin blades 4, which are distributed around the impeller and driven to rotate by the high-pressure airflow. Adjacent to the impeller is a guide wheel 5, which changes the direction of the high-pressure airflow blown out by the composite fin blades on the impeller through the guide blades, and continues to drive the fin blades of another impeller to add force. The symmetrical side of the guide wheel has a nozzle connected to the gas distribution pipeline 6, and at the front end there are a control switch high-pressure air valve 7 and a pressure regulating valve 8 to adjust the high-pressure airflow to control the speed. After the speed reducer 9 releases the pressure and the gas expands after doing work, there is a supplementary heater 10 at the ice-causing place to prevent ice formation, there is a pressure gauge 11 at the pressure regulating valve, there are multiple sensors 12 inside the high-pressure airflow engine to measure the operating status, there is an actuator 13 on the pressure regulating valve, there are several pressure tanks 14 outside the high-pressure airflow engine that can store air for it, and there is a fully automatic control system 15 for electronic and electrical appliances and air path measurement and control at each key position.
[0006] The high-pressure airflow passes through the pipeline to form an air flow beam around the hub, and the air pressure drives the impeller to rotate. This is different from the air pressure drive in the axial flow direction of the air expander. Instead, the engine shaft is driven to rotate by the impeller blades, and the planetary gear drives the main shaft to rotate and do work after deceleration. It can drive the generator to generate electricity, and can also drive other equipment to rotate and do work. 4. Description of the drawings
[0007] Figure 1 , system structure diagram. 1. The air compressor uses a high-pressure compressor
[0008] 2. The number of gas storage tanks can be flexibly configured according to needs.
[0009] 3. High-pressure air flow engine The detailed structure of the high-pressure air flow engine is shown in the instruction manual.
[0010] 4. Generator,
[0011] 5. High pressure air flow engine control system. Electronic automatic control system. 5. Specific implementation methods
[0012] The air is pressurized by the air compressor and transported to the high-pressure gas tank for storage, so that it can be transported to the high-pressure air flow engine through pipelines when needed to drive the impeller blades to rotate and do work.
[0013] The high-pressure air flow engine and distributed energy storage peak-shaving power station consists of five parts:
[0014] 1) Air compressor.
[0015] 2) High-pressure gas tank
[0016] 3) High-pressure air flow engine. It consists of 14 parts.
[0017] 4) Generator or other load equipment.
[0018] 5) Control system.
Claims
1. The high-pressure air flow engine is composed of a main shaft 1, a planetary gear 2, an impeller 3, a composite fin blade 4, a guide wheel 5, an air distribution pipeline 6, a high-pressure air valve 7, a pressure regulating valve 8, a reheater 9, a pressure gauge 10, a sensor 11, an actuator 12, a pressure tank 13, a control system 14, etc.
2. The outer peripheral surface of the impeller 2 described in claim 1 is evenly distributed with a plurality of composite fish fin blades, which are in the shape of composite curved fish fins, have a certain width and thickness, and can withstand the continuous impact of high-pressure airflow and drive the impeller to rotate.
3. The guide wheel 4 as claimed in claim 1 is parallel to the impeller 3 in the axial direction, and guide grooves are evenly distributed on the outer circumference of the guide wheel 4, and the guide grooves are in reverse arc curves.
4. The control system 14 in claim 1 is a fully automatic control system for controlling the state of the high-pressure airflow engine, the air source and the load. The air inlet and exhaust valves and the sensor 11 automatically open and close the valves according to the load information, and adjust the pressure regulating valve 8 to control the air pressure in a normal working state.