CN203584570U - Internal-mixing large-cylinder diameter high-hydrogen gas engine - Google Patents
Internal-mixing large-cylinder diameter high-hydrogen gas engine Download PDFInfo
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- CN203584570U CN203584570U CN201320570367.8U CN201320570367U CN203584570U CN 203584570 U CN203584570 U CN 203584570U CN 201320570367 U CN201320570367 U CN 201320570367U CN 203584570 U CN203584570 U CN 203584570U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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Abstract
The utility model discloses an internal-mixing large-cylinder diameter high-hydrogen gas engine which comprises an engine cylinder cover, wherein the engine cylinder cover is connected with a gas inlet system which comprises an inner gas inlet pipe and an outer gas inlet pipe, air and gas inlet branch pipes are arranged on the inner and outer gas inlet pipes, respectively, the air and gas inlet branch pipes are communicated with the inner and outer gas inlet pipes, respectively, an air-fuel ratio control system comprises a controller, a mixer inner pipe and a mixer outer pipe, an electric air regulating valve and an electric gas regulating valve are arranged on the mixer inner pipe and the mixer outer pipe, respectively, the electric air regulating valve and the electric gas regulating valve are connected with the controller, and the air inlet system is connected with the air-fuel ratio control system. The internal-mixing large-cylinder diameter high-hydrogen gas engine realizes complete isolation of gas and air outside the engine cylinder and avoids the danger of backfire and blasting of a combustible gas; the air-fuel ratio control system based on PLC (Programmable Logic Control) controls the gas inflow and the air inflow sensitively and accurately so that the unit is stable in running; the whole engine is simple in structure, low in cost, low in fault rate and convenient to maintain.
Description
Technical field
The utility model relates to a kind of motor, is specifically related to the high hydrogen gas engine of the large cylinder diameter of a kind of internal-mixing.
Background technique
The continuous aggravation that brings external pressure along with the continuous growth of China's energy demand and the consumption of fossil energy, the exploitation of Non Conventional Energy Sources and renewable energy sources more and more come into one's own, various countries' national policy is vigorously supported energy-saving and emission-reduction, Engine Industry is all devoted to the exploitation of gas engine both at home and abroad, and the combustion gas motor set product kinds such as rock gas, gas, biogas are also more and more.
The key technology of fuel gas generation unit is gas supply system and auxiliary fuel supply-system, and gas supply system is different internal-mixing and the premixed two large classes of being divided into from air hybrid mode by combustion gas.No matter which kind of hybrid mode, can combustion gas fully mix according to correct air fuel ratio with air, is all crucial problem.
Gas engine gas handling system mostly in the market is premixed.When the higher combustion gas of the hydrogeneous tolerance such as engine for combusting biogas, coke-stove gas, impact due to the character such as the burning-point of hydrogen is lower, velocity of combustion is very fast, motor very easily occurs that air inlet-outlet pipe tempering blows out phenomenon, cause generating set power fluctuation, fluctuation of service, thus high Hydrogen fuel is reduced in the utilization ratio of field of internal combustion engine.In addition, also have and a kind ofly on each cylinder cylinder head air intake branch, electric control solenoid valve is installed to realize the gas handling system of single-point discharge, but the control system of this intake method is comparatively complicated, and combustion gas mixes in cylinder cap intake duct with air, do not accomplish the mixed combustion in firing chamber completely, still have tempering hidden danger.Secondly, this type of generator mostly is external product, and complete machine cost is higher, and motor is subject to solenoid valve life-span limitation more serious.
Model utility content
According to above deficiency of the prior art, the purpose of this utility model is: provide that a kind of air intake system structure is simple, air fuel ratio precise control, the high hydrogen gas engine of the large cylinder diameter of internal-mixing that complete machine cost is low.
The utility model solves the technological scheme that its technical problem adopts:
The high hydrogen gas engine of the large cylinder diameter of internal-mixing, comprise engine cylinder cap, engine cylinder cap and gas handling system are joined, gas handling system comprises suction tude inner tube and suction tude outer tube, it is inner that suction tude inner tube is located at suction tude outer tube, air inlet arm and gas inlet arm are located at respectively suction tude inner tube and suction tude outer tube homonymy side by side, air inlet arm communicates with suction tude inner tube, gas inlet arm communicates with suction tude outer tube, auxiliary fuel supply-system comprises controller, mixer inner tube, mixer outer tube, mixer inner tube one end is provided with air electric control valve, mixer outer tube one end is provided with combustion gas electric control valve, air electric control valve is connected with controller with combustion gas electric control valve, auxiliary fuel supply-system and gas handling system are joined.
Air and combustion gas flow into by mixer inner tube and mixer outer tube respectively, the position of docking with suction tude inner tube in mixer inner tube is provided with air electric control valve, the position connecting at mixer outer tube and suction tude outer tube is provided with combustion gas electric control valve, controller can be controlled the aperture of air electric control valve and combustion gas electric control valve and carry out adjusting air-fuel ratio, control accurately, air and combustion gas enter respectively that the suction tude inner tube of gas handling system and suction tude outer tube surround two be space completely independently, completely mutually isolated outside cylinder, avoided inflammable gas tempering, the danger of blowing out, and gas handling system is only comprised of simple pipeline configuration, required cost is lower.
Preferably, described engine cylinder cap is Four-valve cylinder head, cylinder is stamped two intake valves and two exhaust valves, two intake valves independently intake duct of ining succession separately, after two exhaust valves are first independent, disjunctors share air outlet flues, and intake duct and air outlet flue are located at respectively cylinder head both sides, two independently intake duct can guarantee mutually to completely cut off before air and combustion gas enter cylinder, two exhaust valves share an air outlet flue and can simplify engine air cylinder head structure, save space and material.
Preferably, two intake ducts of described engine cylinder cap dock with air inlet arm and gas inlet arm respectively, guarantee to isolate completely before air and combustion gas enter cylinder.
Preferably, described mixer inner tube is docked with suction tude inner tube, mixer outer tube docks with suction tude outer tube, mixer inner tube and suction tude inner tube and air inlet arm form air communication channel, mixer outer tube suction tude outer tube and gas inlet arm have just surrounded gas circulation passage with corresponding outer wall of inner tube, and air communication channel and gas circulation passage are completely isolated.
Preferably, described controller is PLC controller, can realize the accurate control of air fuel ratio by the aperture of air electric control valve and combustion gas electric control valve is controlled, and guarantees the normal operation of gas engine.
Preferably, described gas handling system adopts suction tude adpting flange to be connected with mixer adpting flange with auxiliary fuel supply-system, guaranteed the sealing that gas handling system is connected with auxiliary fuel supply-system, avoided air to sneak into blast tube or gas leakage, eliminated safe hidden trouble.
Preferably, described air electric control valve and combustion gas electric control valve adopt electric butterfly valve, control the air inflow of air and combustion gas.
Preferably, described cylinder covers and is provided with temperature transducer, temperature transducer is connected with controller, temperature transducer is measured the temperature of engine cylinder cap in real time, and temperature data is transferred to controller, controller carries out analysing and processing to temperature data, regulates the aperture of air electric control valve and combustion gas electric control valve thereupon, controls air and gas inlet amount.
During the utility model work, first, according to after combustion gas gas composition analysis theoretical air-fuel ratio, combustion gas electric control valve and air electric control valve are reserved to suitable aperture, auxiliary fuel supply-system is tentatively adjusted.Now, air enters the air communication channel that mixer inner tube and suction tude inner tube and air inlet arm form after adjusting air inflow by air electric control valve, combustion gas enters mixer outer tube after adjusting air inflow by combustion gas electric control valve, suction tude outer tube and gas inlet arm and the gas circulation passage that outer wall of inner tube surrounds accordingly, when motor runs to suction stroke, cylinder covers two intake valves and opens, combustion gas and air are respectively by being connected with two intake ducts and distinct gas inlet arm air inlet arm enters into and carries out mixed combustion in cylinder.In running, the temperature signal that PLC controller records by analyzing the upper temperature transducer of cylinder, combustion gas electric control valve and air motorized adjustment valve opening are adjusted automatically, controlled air and gas flow, thereby motor is moved always under suitable air fuel ratio situation.
Compared with prior art, the utility model has following beneficial effect:
(1) gas handling system has realized completely isolated in cylinder outside of combustion gas and air, mixed combustion in firing chamber, the danger of thoroughly avoided inflammable gas tempering, blowing out.
(2) auxiliary fuel supply-system based on PLC can be controlled the air inflow of combustion gas and air sensitive, accurately, makes unit operation and power stage stable.
(3) gas handling system and auxiliary fuel supply-system are simple in structure, and cost is low, and rate of fault is few, are convenient to safeguard.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
The utility model A-A sectional drawing in Fig. 2 Fig. 1.
The utility model B-B sectional drawing in Fig. 3 Fig. 1.
In figure: 1, suction tude outer tube; 2, suction tude inner tube; 3, air inlet arm; 4, gas inlet arm; 5, suction tude adpting flange; 6, mixer adpting flange; 7, mixer inner tube; 8, mixer outer tube; 9, combustion gas electric control valve; 10, air electric control valve; 11, engine cylinder cap; 12, intake valve; 13, exhaust valve.
Embodiment:
Below in conjunction with accompanying drawing, the utility model embodiment is further described.
Referring to Fig. 1 to Fig. 3, described in the present embodiment, the high hydrogen gas engine of the large cylinder diameter of internal-mixing comprises engine cylinder cap 11, engine cylinder cap 11 joins with gas handling system, gas handling system comprises suction tude inner tube 2 and suction tude outer tube 1, suction tude inner tube 2 is located at suction tude outer tube 1 inside, air inlet arm 3 and gas inlet arm 4 are located at respectively suction tude inner tube 2 and suction tude outer tube 1 homonymy side by side, air inlet arm 3 communicates with suction tude inner tube 2, gas inlet arm 4 communicates with suction tude outer tube 1, auxiliary fuel supply-system comprises controller, mixer inner tube 7, mixer outer tube 8, mixer inner tube 7 one end are provided with air electric control valve 10, mixer outer tube 8 one end are provided with combustion gas electric control valve 9, air electric control valve 10 is connected with controller with combustion gas electric control valve 9, auxiliary fuel supply-system and gas handling system are joined.In Fig. 1, dotted arrow represents air-flow direction, and solid arrow represents fuel gas flow direction.
Wherein, engine cylinder cap 11 is Four-valve cylinder head, engine cylinder cap 11 has two intake valves 12 and two exhaust valves 13, two intake valves 12 independently intake duct of ining succession separately, two first independent rear disjunctors of exhaust valve 13 share an air outlet flue, intake duct and air outlet flue are located at respectively cylinder head both sides, two independently intake duct can to guarantee that air and combustion gas enter before cylinder mutually isolated, two exhaust valves 13 share an air outlet flue and can simplify engine cylinder cap 11 structures, save space and material; Two intake ducts of engine cylinder cap 11 dock with air inlet arm 3 and gas inlet arm 4 respectively, guarantee to isolate completely before air and combustion gas enter cylinder; Mixer inner tube 7 is docked with suction tude inner tube 2, mixer outer tube 8 docks with suction tude outer tube 1, mixer inner tube 7 has formed air communication channel with suction tude inner tube 2 and air inlet arm 3, mixer outer tube 8, suction tude outer tube 1 and gas inlet arm 4 have just surrounded gas circulation passage with corresponding outer wall of inner tube, and air communication channel and gas circulation passage are completely isolated; Controller is PLC controller, can, by the aperture of air electric control valve 10 and combustion gas electric control valve 9 is controlled, realize the accurate control of air fuel ratio; Gas handling system adopts suction tude adpting flange 5 to be connected with mixer adpting flange 6 with auxiliary fuel supply-system, has guaranteed the sealing that gas handling system is connected with auxiliary fuel supply-system, avoids air to sneak into blast tube or gas leakage, eliminates safe hidden trouble; Air electric control valve 10 and combustion gas electric control valve 9 adopt electric butterfly valve, control the air inflow of air and combustion gas; Engine cylinder cap 11 is provided with temperature transducer, temperature transducer is connected with controller, temperature transducer is measured the temperature of engine cylinder cap 11 in real time, and temperature data is transferred to controller, controller carries out analysing and processing to temperature data, regulate the aperture of air electric control valve 10 and combustion gas electric control valve 9 thereupon, control air and gas inlet amount.
The utility model embodiment working procedure is as follows:
First according to after combustion gas gas composition analysis theoretical air-fuel ratio, combustion gas electric control valve 9 and air electric control valve 10 are reserved to suitable aperture, auxiliary fuel supply-system is tentatively adjusted.Now, air is adjusted the air communication channel that enters mixer inner tube 7 and suction tude inner tube 2 and air inlet arm 3 compositions after air inflow by air electric control valve 10, combustion gas enters mixer outer tube 8 after adjusting air inflow by combustion gas electric control valve 9, suction tude outer tube 1 and gas inlet arm 4 and the gas circulation passage that outer wall of inner tube surrounds accordingly, when motor runs to suction stroke, cylinder covers two intake valves 12 and opens, combustion gas and air are respectively by being connected with two intake ducts and distinct gas inlet arm 4 and air inlet arm 3 enter into and carry out mixed combustion in cylinder, tail gas after burning is discharged via exhaust valve 13.In running, PLC controller is by analyzing the temperature signal that on engine cylinder cap 11, temperature transducer records, combustion gas electric control valve 9 and air electric control valve 10 apertures are adjusted automatically, control air and gas flow, thereby motor is moved always under suitable air fuel ratio situation.
The high hydrogen gas engine of the large cylinder diameter of the utility model internal-mixing, accomplished completely isolated outside cylinder of combustion gas and air, thoroughly avoided the danger of combustion gas tempering, be applicable to the higher flammable explosive gas of hydrogeneous tolerance such as biological substance for combustion gas, coke-stove gas, producer gas, blue charcoal gas, system architecture is simple, cost is low, and rate of fault is few, is convenient to safeguard.
Claims (8)
1. the high hydrogen gas engine of the large cylinder diameter of internal-mixing, comprise engine cylinder cap (11), it is characterized in that, engine cylinder cap and gas handling system are joined, gas handling system comprises suction tude inner tube (2) and suction tude outer tube (1), suction tude inner tube (2) is located at suction tude outer tube (1) inside, air inlet arm (3) and gas inlet arm (4) are located at respectively suction tude inner tube (2) and suction tude outer tube (1) homonymy side by side, air inlet arm (3) communicates with suction tude inner tube (2), gas inlet arm (4) communicates with suction tude outer tube (1), auxiliary fuel supply-system comprises controller, mixer inner tube (7), mixer outer tube (8), mixer inner tube (7) one end is provided with air electric control valve (10), mixer outer tube (8) one end is provided with combustion gas electric control valve (9), air electric control valve (10) is connected with controller with combustion gas electric control valve (9), auxiliary fuel supply-system and gas handling system are joined.
2. the high hydrogen gas engine of the large cylinder diameter of internal-mixing according to claim 1, it is characterized in that, described engine cylinder cap (11) is Four-valve cylinder head, on engine cylinder cap (11), there are two intake valves (12) and two exhaust valves (13), two intake valves (12) independently intake duct of ining succession separately, two exhaust valves (13) first independent rear disjunctor share an air outlet flue, and intake duct and air outlet flue are located at respectively cylinder head both sides.
3. the high hydrogen gas engine of the large cylinder diameter of internal-mixing according to claim 2, is characterized in that, two intake ducts of described engine cylinder cap dock with air inlet arm (3) and gas inlet arm (4) respectively.
4. the high hydrogen gas engine of the large cylinder diameter of internal-mixing according to claim 1, is characterized in that, described mixer inner tube (7) is docked with suction tude inner tube (2), and mixer outer tube (8) docks with suction tude outer tube (1).
5. according to the high hydrogen gas engine of the large cylinder diameter of internal-mixing described in claim 1,2 or 4, it is characterized in that, described controller is PLC controller.
6. the high hydrogen gas engine of the large cylinder diameter of internal-mixing according to claim 1, is characterized in that, described gas handling system adopts suction tude adpting flange (5) to be connected with mixer adpting flange (6) with auxiliary fuel supply-system.
7. the high hydrogen gas engine of the large cylinder diameter of internal-mixing according to claim 1, is characterized in that, described air electric control valve (10) and combustion gas electric control valve (9) all adopt electric butterfly valve.
8. the high hydrogen gas engine of the large cylinder diameter of internal-mixing according to claim 1, is characterized in that, described engine cylinder cap (11) is provided with temperature transducer, and temperature transducer is connected with controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320570367.8U CN203584570U (en) | 2013-09-16 | 2013-09-16 | Internal-mixing large-cylinder diameter high-hydrogen gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320570367.8U CN203584570U (en) | 2013-09-16 | 2013-09-16 | Internal-mixing large-cylinder diameter high-hydrogen gas engine |
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| Publication Number | Publication Date |
|---|---|
| CN203584570U true CN203584570U (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320570367.8U Expired - Lifetime CN203584570U (en) | 2013-09-16 | 2013-09-16 | Internal-mixing large-cylinder diameter high-hydrogen gas engine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452651A (en) * | 2013-09-16 | 2013-12-18 | 淄博淄柴新能源有限公司 | Inside-mixing large-bore high-hydrogen-content gas engine |
-
2013
- 2013-09-16 CN CN201320570367.8U patent/CN203584570U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452651A (en) * | 2013-09-16 | 2013-12-18 | 淄博淄柴新能源有限公司 | Inside-mixing large-bore high-hydrogen-content gas engine |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |