CN2597672Y - Air cooled natural gas enginer - Google Patents
Air cooled natural gas enginer Download PDFInfo
- Publication number
- CN2597672Y CN2597672Y CNU012623741U CN01262374U CN2597672Y CN 2597672 Y CN2597672 Y CN 2597672Y CN U012623741 U CNU012623741 U CN U012623741U CN 01262374 U CN01262374 U CN 01262374U CN 2597672 Y CN2597672 Y CN 2597672Y
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- cooling
- natural gas
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- air
- belt
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Abstract
A forced air cooling natural gas generator is provided. The utility model comprises a cylinder, a cylinder cover, a piston connecting rod, a machine body, a crank shaft, a fuel supply system, and a machine oil cooling system; wherein, the cooling system adopts the forceful forced air cooling method, using the crank shaft output as the power to drive a blower, thus forming a cooling airflow with certain pressure inside of a wind pressure room; wherein, cooling wind is blown over the cylinder and the radiator on the outer surface of the cylinder cover, exerting cooling function; and the generator is also provided with a cylinder cover temperature and a belt breaking protection device. The utility model is suitable for the areas far from water source and without persons on duty and natural gas, thoroughly solving various bad soaking corrosion of the cooling water to the machine body, thus being widely applied to oil exploitation, agricultural water drainage and irrigation, small size generator sets, etc.
Description
Technical field the utility model relates to natural gas engine technology, the especially air cooled natural gas engine in the field of dynamic engineering.
Background technique is present, in petroleum production, because oil well is located in remote wilderness, and distribute and quite disperse, need use the energy that power is provided on the spot, resource be exactly rock gas (oil field gas) the most easily, and general natural gas engine all adopts the water-cooled cooling, under the situation of unattended duty, because the seepage loss of cooling water and to the corrosion of system can not continue the unattended duty operation for a long time, adds that again the well site is away from the water source, so, need a kind of motor that does not have water cooling.Patent 98102138.7 " having the gas engine of gas fuel modifying device " (Japan) is with CO
2With CH
4Mix, send into the catalyst reactor that is configured on the exhaust passageway then, make its decomposition and be transformed to modified fuel,, do not adopt air-cooled technology though this utility model patent is a gas engine with the heat energy of waste gas; Chinese patent " automobile with compressed natural gas motor the pressure governor " (patent No.: 9720831406) use on the water-cooled engine; Chinese patent " rock gas internal-combustion engine the precombustion chamber " (patent No.: 96248515.2) do not relate to air-cooled technology.Therefore, invent a kind of air-cooled natural gas engine and have natural gas resource, and use, become extremely important away from the area at water source to satisfy.
The summary of the invention technical problem to be solved in the utility model is a kind of air cooled natural gas engine of design, replace original water-cooled natural gas engine, solve water-cooled engine and leak and cavitation pitting, adapt to engine operated scene away from the water source, and the needs of unattended duty continuous firing.Air cooled natural gas engine, with the rock gas is fuel, it comprises cylinder barrel, cylinder cap, piston rod, body, bent axle, fuel supply system, oil cooled system etc., the cooling system of motor be forced air cooling but, the structure of cooling system is, at crankshaft free-end main pulley is installed, main pulley is by v belt belt driven blower belt pulley, Idle wheel is installed in the inboard of v belt, and by being bolted on the body, the place is equipped with the blast chamber at the blower air outlet slit, is smooth transition before and after the blast chamber, the blast chamber is installed on body air inlet side and the cylinder head by bolt, is cast with radiating fin at the outer surface of cylinder head and cylinder barrel.
The engine fuel supply system mainly is made up of gas pressure regulating valve, gas electromagnetic valve, air fuel gas mixer, air inlet piping and distribution device etc.At the characteristics of premixed natural gas engine work cycle, valve cam peach shape is carried out analog computation, optimize port timing, to satisfy the needs of its working procedure; Suction tude adopts the large diameter cylinder structure, improves the stability of air-flow, increases the air inlet charge of motor; Pressure regulator valve is housed in the gas pipeline, guarantees that rock gas has suitable steady pressure in the pipeline; The diaphragm type mixer is installed before the suction tude,, realizes the good combustion of mixed gas in the cylinder to guarantee that inflammable mixture enters cylinder with rational air fuel ratio.Fuel supply system of the present utility model is to realize like this, the fuel supply system of this motor is a gas gas premix mode, rock gas after treatment (oil field gas), pass through gas pressure regulating valve, with metastable setting pressure, under the pumping action of cylinder degree of vacuum, in the air fuel gas mixer with air mixing, and enter suction tude by a certain percentage, enter cylinder again.
Cooling system of the present utility model is to realize like this, be output as power with crankshaft front end, drive the axial blower rotation by belt transmission, the cooling air that blower blows out is at the cooling blast of the indoor formation certain pressure of blast, pass the radiating fin of cylinder head and cylinder barrel outer wall, to exhaust side, cooling air cylinder cap and cylinder barrel reduce the heat load of motor heated part from engine charge side-blown.
The oil radiator of motor has independent cooling blast loop, the part of the cooling air that blower blows out is passed through machine oil cooler, directly communicate with the external world, do not disturb mutually with the cooling circuit of cylinder cap and cylinder barrel, promptly guaranteed the good cooling of machine oil, not to the cooling generation extra duty of cylinder head and cylinder barrel, the cooling effectiveness of whole cooling system is higher again.
The air cooled natural gas facility have the advantage of natural gas engine, CO, CH and NO in the products of combustion
XObviously be less than the traditional liquid engine fuel Deng compound, and do not contain exhaust particulate, exhaust smoke also obviously reduces, and is desirable economic environment protecting type engine.
The air cooled natural gas machine has the advantage of air cooling engine simultaneously, its forced air cooling is mode but, cooling effect is subjected to external environment influence less, and do not need to add cooling water, has thoroughly solved cooling water to the cavitation pitting of body and cylinder barrel and to the various bad etch of motor.Be specially adapted to severe cold, extremely hot, highland and desert etc. and use, for unattended duty and the automatic operating of realizing motor provides good guarantee away from the occasion at water source.
The air cooled natural gas machine is because its air cooling way, simplified the structure of cooling system, reduced the difficulty of key components and partss such as body, cylinder cap because of arranging that cooling water channel brings, and loaded down with trivial details and inconvenient on structural configuration of cooling piping and radiator, reduce the volume of motor simultaneously, reduced the weight of motor.
Motor adopts digital ignition system, because the rock gas in-cylinder combustion requires ignition voltage and ignition energy all to be higher than common ignition type engine, guarantees the continuous reliable ignition of motor.
Motor adopts digital monitoring and protective system; characteristics at air cooling engine; set up the high and disconnected protective gear in fan belt of cylinder cap temperature; the high protective gear of cylinder cap temperature, it adopts digital control, comprises cpu controller, cylinder head temperature sensor and cutting type gas electromagnetic valve etc.; sensor is installed in the exhaust side of cylinder cap; and link by communication line and cpu controller, connecing the cutting type gas electromagnetic valve behind the cpu controller, the pneumoelectric magnet valve is installed in the fuel gas pipeline.The belt protective gear that breaks, protective switch is installed on the Idle wheel, and links by signaling line and cpu controller, connects the cutting type gas electromagnetic valve behind the cpu controller, and this solenoid valve is installed in the fuel gas pipeline.Its protective function is achieved in that when protective signal passes to electronic engine management system this system output signal disconnects the gas electromagnetic valve circuit, cuts off natural gas path, forces engine shutdown.The high protective function of cylinder cap temperature can prevent that the aluminum alloy cylinder cover temperature from surpassing allowable value and impaired, and the disconnected protective gear in fan belt can guarantee that motor does not have the purpose that cooling is promptly shut down.
The air cooled natural gas machine can be widely used in fields such as oilfield exploitation, agricultural drainage and irrigation, small power generation unit and contain, and also can be used as the motor of multiple special vehicle and engineering machinery.(oil field gas) resource that it is particularly useful for having rock gas, and use away from the area at water source.It uses in rugged environment such as severe cold, extremely hot, plateau, desert area, more can bring into play the advantage of its air cooling way.
Description of drawings Fig. 1 is the front view of the utility model air cooled natural gas engine; Fig. 2 is the side view of the utility model air cooled natural gas engine.
1 oil sump, 8 cylinder head, 15 cylinder barrels
2 main pulleys, 9 outlet pipes, 16 speed regulators
3 Idle wheels, 10 charging machines blast chambers 17
4 blowers, 11 actuating motors, 18 fan belts
5 spark coils, 12 mixers, 19 bodies
6 high-pressure ignition wires, 13 ignition detectors, 20 oil filter
7 spark plugs, 14 suction tude, 21 bent axles
Embodiment is with reference to Fig. 1, Fig. 2, the T3120F air cooled natural gas engine comprises cylinder barrel, cylinder cap, piston rod, body, bent axle, fuel supply system, oil cooled system, pressure regulator valve, solenoid valve, mixer 12 and air inlet piping 14 supply systems are arranged in the motor right side, and cooling systems such as blower 4 and blast chamber 17; The cooling system of motor be forced air cooling but, the structure of cooling system is for to be equipped with main pulley 2 at crankshaft free-end, main pulley 2 is by v belt belt driven blower belt pulley, Idle wheel 3 is installed in the inboard of v belt, and by being bolted on the body, the place is equipped with blast chamber 17 at the blower air outlet slit, is smooth transition before and after the blast chamber, blast chamber 17 is installed on body air inlet side and the cylinder head 8 by bolt, is cast with radiating fin on the outer surface of cylinder head and cylinder barrel 15.
| Model | 3120FT | 3120FT-2 | |
| Pattern | Vertical, forced air cooling in upright arrangement, four-stroke, natural aspiration | ||
| Cylinder number | 3 | ||
| Bore/stroke mm | 120×140 | ||
| Total displacement L | 4.75 | ||
| | 10∶1 | ||
| Rated power kW | 35 | 25 | |
| Rated speed r/min | 1500 | 1000 | |
| Rock gas heat consumption rate kJ/kWh | 11000 | ||
| Specific oil consumption g/kWh | ≤1.8 | ||
| Exhaust smoke R B | ≤0.8 | ||
| Electric ignition system | Priming supply | Magneto alternator | |
| Firing order | 1-3-2 (cylinder puts in order from free end) | ||
| Firing mode | The spark plug electric ignition | ||
| Ignition advance angle (budc) | 38°±4° | 36°±4° | |
| Delivery temperature ℃ | ≤601 | ||
| Boundary dimension (the mm of 1 * b * h) | 890×644×1067 | ||
| Clean quality kg | 600 | ||
Claims (5)
1, air cooled natural gas engine, it comprises cylinder barrel, cylinder cap, piston, body etc., its fuel supply system comprises gas pressure regulating valve, gas electromagnetic valve, the air fuel gas mixer, air inlet piping and distribution device etc., its oil cooled system has independent cooling blast loop, the cooling system that it is characterized in that motor be forced air cooling but, the structure of cooling system is, at crankshaft free-end main pulley is installed, main pulley is by v belt belt driven blower belt pulley, Idle wheel is installed in the inboard of v belt, and by being bolted on the body, the place is equipped with the blast chamber at the blower air outlet slit, before and after the blast chamber is smooth transition, and the blast chamber is installed on body air inlet side and the cylinder head by bolt.
2, air cooled natural gas engine according to claim 1 is characterized in that being cast with radiating fin at the outer surface of cylinder head and cylinder barrel.
3, air cooled natural gas engine according to claim 1; it is characterized in that motor is equipped with the high protective gear of cylinder cap temperature; it adopts digital control; comprise cpu controller, cylinder head temperature sensor and cutting type gas electromagnetic valve etc.; sensor is installed in the exhaust side of cylinder cap; and link by communication line and cpu controller, connecing the cutting type gas electromagnetic valve behind the cpu controller, this solenoid valve is installed in the fuel gas pipeline.
4, air cooled natural gas engine according to claim 1 is characterized in that being shaped as of described blast chamber, and front end is columnar structured, and the rear end is an ellipsoidal structure.
5, air cooled natural gas engine according to claim 1; it is characterized in that motor is equipped with the disconnected protective gear of belt; protective switch is installed on the Idle wheel; and link by signaling line and cpu controller; connect the cutting type gas electromagnetic valve behind the cpu controller, this solenoid valve is installed in the fuel gas pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU012623741U CN2597672Y (en) | 2001-10-29 | 2001-10-29 | Air cooled natural gas enginer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU012623741U CN2597672Y (en) | 2001-10-29 | 2001-10-29 | Air cooled natural gas enginer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2597672Y true CN2597672Y (en) | 2004-01-07 |
Family
ID=34141445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU012623741U Expired - Fee Related CN2597672Y (en) | 2001-10-29 | 2001-10-29 | Air cooled natural gas enginer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2597672Y (en) |
-
2001
- 2001-10-29 CN CNU012623741U patent/CN2597672Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENGLI OILFIELD SHENGLI POWER MACHINERY CO., LTD. Free format text: FORMER NAME OR ADDRESS: POWER MACHINERY FACTORY, SHENGLI PETROLEUM ADMINISTRATION |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Shengli Power Machinery Co., Ltd., Shengli Oil Field Patentee before: Power Machinery Plant, Shengli Petroleum Admistration |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |