Natural gas engine gas supply system with selectable heating media
A heating medium and gas supply system technology, applied in the direction of engine components, engine control, combustion engine, etc., can solve the problems of slow vaporization rate, difficult control of vaporization rate, low specific heat capacity of water-ethylene glycol solution, etc., and achieve easy control Effect
Inactive Publication Date: 2020-11-27
HARBIN ENG UNIV
View PDF8 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] At present, the heating medium used by the carburetor can directly use the cooling water of the engine, but the disadvantage is that the vaporization rate is not easy to control; an electric heater can also be used to heat the water-ethylene glycol, and then use the water-ethylene glycol as the heating medium to vaporize the LNG , the disadvantage is that the water-ethylene glycol solution has a low specific heat capacity and a slow vaporization rate
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0015] The present invention is described in more detail below in conjunction with accompanying drawing example:
[0016] combine figure 1 , the present invention is a gas supply system for a natural gas engine with an optional heating medium, including an engine 10, a gas supply system, a cooling water circuit, a water-glycol circuit, and the like.
[0017] The gas supply system includes LNG storage tank 1, solenoid valve I2, vaporizer I3, voltage stabilizer 14, gas filter 13, gas injection valve 12, and premixer 11. It is heated and vaporized, enters the voltage stabilizer 14 to stabilize the pressure, then filters through the gas filter 13, and enters the premixer 11 through the injection valve 12, forms a homogeneous combustible mixture with air, and enters the cylinder of the engine 10 for combustion and work.
[0018] The cooling water circuit includes carburetor I3, thermostat 4, radiator 5 and water pump 6. The cooling water flowing out from the engine 10 flows into ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a natural gas engine gas supply system with selectable heating media. The system involves a liquefied natural gas storage tank, the liquefied natural gas storage tank is connected with a first vaporizer and a second vaporizer, the first vaporizer is sequentially connected with a pressure stabilizer, a gas filter, a premixer and an engine, a cooling water outlet of the engineis sequentially connected with the first vaporizer, a thermostat, a radiator and a water pump, the medium flows back to the engine, the engine is connected with a generator, the generator is connected with an electric heater, an outlet of the electric heater is connected with a hydrothermal solution inlet of the second vaporizer, and a hydrothermal solution outlet of the vaporizer is connected with an inlet of the electric heater. According to the system, the two vaporizers are arranged, cooling water and water-ethylene glycol are used as the heating media, and the two heating media work in two loops and do not interfere with each other; an electric control system controls the opening degree of electromagnetic valves in the two loops, the flow of liquefied natural gas flowing into the twovaporizers is regulated and controlled, the heating media are selected, and the vaporization rate and the air cylinder temperature are regulated and controlled.
Description
technical field [0001] The invention relates to a natural gas engine, in particular to a gas supply system for a natural gas engine. Background technique [0002] Liquefied Natural Gas (LNG) is mainly composed of methane and other hydrocarbons, and has good emission performance after combustion. As an efficient and high-quality clean energy, it has abundant reserves and low cost, and has attracted widespread attention. It can be used as Fuel for gas engines. [0003] During transportation and storage, natural gas is stored in storage tanks in a low-temperature, liquid state. In the actual use process, the vaporizer in the gas supply system heats and vaporizes the liquefied natural gas stored at low temperature, transforms it into a state that meets the needs of the engine, and transports it into the cylinder for combustion and work. Most natural gas engines at this stage use water-bath carburetors, and the heat required for the vaporization process is provided by the heati...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): F02M21/02F02M21/06F02D19/02F02B63/04F01P3/20F02G5/00
CPCF01P3/20F02B63/04F02D19/022F02G5/00F02M21/0215F02M21/0218F02M21/06Y02T10/12Y02T10/30
Inventor 丁宇李兆徐珂达
Owner HARBIN ENG UNIV