CN112240255A - Air inlet system of low-concentration gas engine - Google Patents
Air inlet system of low-concentration gas engine Download PDFInfo
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- CN112240255A CN112240255A CN202011188356.4A CN202011188356A CN112240255A CN 112240255 A CN112240255 A CN 112240255A CN 202011188356 A CN202011188356 A CN 202011188356A CN 112240255 A CN112240255 A CN 112240255A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
- F02M21/0215—Mixtures of gaseous fuels; Natural gas; Biogas; Mine gas; Landfill gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0227—Means to treat or clean gaseous fuels or fuel systems, e.g. removal of tar, cracking, reforming or enriching
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
- F02M21/0239—Pressure or flow regulators therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
- F02M21/0242—Shut-off valves; Check valves; Safety valves; Pressure relief valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/04—Gas-air mixing apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
- F02M35/08—Air cleaners with means for removing dust, particles or liquids from cleaners; with means for indicating clogging; with by-pass means; Regeneration of cleaners
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
- F02M35/10255—Arrangements of valves; Multi-way valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
- F02M35/10275—Means to avoid a change in direction of incoming fluid, e.g. all intake ducts diverging from plenum chamber at acute angles; Check valves; Flame arrestors for backfire prevention
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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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Supercharger (AREA)
Abstract
The invention discloses a low-concentration gas engine air inlet system, which relates to a gas engine and mainly solves the technical problem of cleaning an air filter by frequent shutdown. According to the invention, the plurality of air filters are arranged, so that the blocked air filters can be cleaned without stopping.
Description
Technical Field
The invention relates to a gas engine, in particular to an air inlet system of a low-concentration gas engine.
Background
At present, the field application of the low-concentration coal mine gas engine is more and more extensive. The low-concentration gas is a mixed gas, and the main components of the low-concentration gas are methane, nitrogen, carbon dioxide and oxygen. The mixed gas has the characteristics of inflammability and explosiveness, so that the utilization degree of the mixed gas is more complicated than that of the common gas. The air intake system is an important component of a gas engine and relates to structures of air intake, gas intake, mixed supercharging intake and the like. The existing air inlet system of the low-concentration gas engine has the following defects or shortcomings: firstly, the mixed gas is inflammable and explosive and is easy to generate backfire in an air inlet pipe, most of the existing gas inlet pipes are cast aluminum or iron castings, the gas is inflammable and explosive, once the backfire occurs, the cast air inlet pipe is shot-shaped and exploded, the damage force is huge, the engine is extremely easy to damage, and even casualties are caused; secondly, because the working environment has much dust, the air filter is easy to block, the mixing quality of the mixed gas can be seriously influenced after the air filter is blocked, the air filter needs to be frequently stopped to be cleaned, and the working efficiency and the stability are influenced.
Disclosure of Invention
The present invention has been made to solve the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide a low-concentration gas engine intake system which is highly safe and operates stably.
The technical scheme of the invention is as follows: the utility model provides a low concentration gas engine air intake system, is including installing in stabilivolt, the automatically controlled blender at engine top, the both sides of stabilivolt are equipped with at least one air cleaner respectively, each air cleaner passes through the air valve and connects the stabilivolt, one side of automatically controlled blender is equipped with two superchargers, the stabilivolt passes through automatically controlled blender is connected two the booster, the output top of engine is equipped with connects two the intercooler of booster, the both sides of engine are equipped with respectively with the intake pipe that the cylinder of intercooler and engine is connected, the one end of intake pipe loops through first spark arrester, air throttle connection the intercooler, the other end is equipped with explosion-proof valve, the intake pipe adopts sectional type welded structure.
As a further improvement, a gas inlet pipe connected with the electric control mixer is arranged on one side of the engine.
And furthermore, a pressure stabilizing valve, a second flame arrester, a cut-off valve, a filter and a gas injection metering valve are sequentially arranged on the gas inlet pipe from the input end to the output end.
Furthermore, the two superchargers are arranged side by side, and the arrangement direction of the pressure stabilizing tube, the electric control mixer and the two superchargers is consistent with the length direction of the engine.
Further, air filters on two sides of the pressure stabilizing pipe respectively extend outwards of the engine.
Further, the two superchargers are close to one end, far away from the intercooler, of the engine.
Further, the two throttle valves are connected through a connecting rod.
Advantageous effects
Compared with the prior art, the invention has the advantages that:
1. according to the invention, a plurality of air filters are connected with the electric control mixer through the pressure stabilizing pipes, and the air filters can be cleaned by closing the air valves corresponding to the blocked air filters without stopping the engine, so that the working efficiency and the stability of the engine can be ensured.
2. The invention can increase the air supply quantity of the engine by pressurizing the mixed gas by the two superchargers, so that the pressure fluctuation in the air inlet pipe is not obvious in the air inlet process in the cylinder, the air inlet pulsation effect can be effectively eliminated, the working balance of each cylinder is greatly improved, and the air inlet resistance is reduced.
3. The invention keeps the air inlet temperature in a reasonable range all the time through the intercooler, improves the air inlet density, increases the air charging quantity, prevents the air inlet pipe from backfiring, and thus obtains excellent performance of the whole machine.
4. According to the invention, the first flame arrester and the throttle valve are sequentially arranged at one end of the air inlet pipe and connected with the intercooler, so that backfire can be effectively prevented, the explosion-proof valve is arranged at the other end of the air inlet pipe, and when abnormal phenomena such as backfire and the like occur in the air inlet pipe, the explosion-proof valve can be opened under the action of pressure, so that excessive pressure is rapidly discharged, and the safety of an engine is protected.
5. The air inlet pipe adopts a sectional type welding structure, and compared with the traditional cast air inlet pipe, the welding air inlet pipe is only damaged locally, so that the damage is much less.
6. The pressure stabilizing valve, the second flame arrester, the cut-off valve, the filter and the gas injection metering valve are sequentially arranged on the gas inlet pipe from the input end to the output end, so that the backfire can be further prevented, and the safety is improved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Wherein: 1-engine, 2-pressure maintaining tube, 3-electric control mixer, 4-air filter, 5-air valve, 6-supercharger, 7-intercooler, 8-cylinder, 9-air inlet tube, 10-first flame arrester, 11-throttle valve, 12-explosion-proof valve, 13-pressure maintaining valve, 14-second flame arrester, 15-cut-off valve, 16-filter, 17-gas injection metering valve and 18-gas inlet tube.
Detailed Description
The invention will be further described with reference to specific embodiments shown in the drawings.
Referring to fig. 1, the intake system of the low-concentration gas engine comprises a pressure stabilizing pipe 2 and an electric control mixer 3 which are arranged at the top of an engine 1, wherein the engine 1 is a V-shaped engine. At least one air filter 4 is respectively arranged on two sides of the pressure stabilizing tube 2, and each air filter 4 is connected with the pressure stabilizing tube 2 through an air valve 5. In the embodiment, two air filters 4 are respectively arranged on two sides of the pressure stabilizing pipe 2, and 4 air filters 4 are symmetrically arranged on two sides of the pressure stabilizing pipe 2. One side of automatically controlled blender 3 is equipped with two superchargers 6, and stabilivolt 2 connects two superchargers 6 through automatically controlled blender 3, carries out the pressure boost to the gas mixture through two superchargers 6, can improve the air supply of engine for intake pipe internal pressure fluctuation is not very obvious in the cylinder air inlet process, can effectively eliminate the pulsation effect of admitting air, and each cylinder work balance improves greatly, reduces the resistance of admitting air. The top of the output end of the engine 1 is provided with an intercooler 7 connected with two superchargers 6, so that the air inlet temperature is always kept within a reasonable range, the air inlet density is improved, the air charging quantity is increased, the air inlet pipe is prevented from backfiring, and the excellent performance of the whole engine is obtained. The both sides of engine 1 are equipped with respectively the intake pipe 9 of being connected intercooler 7 with engine 1's cylinder 8, and the one end of intake pipe 9 loops through first spark arrester 10, throttle 11 and connects intercooler 7, and the other end is equipped with explosion-proof valve 12, and intake pipe 9 adopts sectional type welded structure. Set up first spark arrester 10, throttle 11 and connect the intercooler, can effectively prevent the tempering, set up explosion-proof valve 12, take place abnormal phenomena such as tempering in intake pipe 9, explosion-proof valve 12 can be opened under the pressure effect, unloads too big pressure rapidly, protects the safety of engine. The intake pipe adopts sectional type welded structure, compares with traditional casting intake pipe, and the welding intake pipe is only in local destruction, and the harm that causes is much littleer (traditional gas intake pipe is mostly cast aluminium or iron casting, and the gas is a flammable explosive gas, in case take place the tempering, the casting intake pipe is shrapnel-shaped and explodes, and the injury is huge, very easily destroys the engine, causes the casualties even).
A gas inlet pipe 18 connected with the electric control mixer 3 is arranged on one side of the engine 1, and a pressure stabilizing valve 13, a second flame arrester 14, a cut-off valve 15, a filter 16 and a gas injection metering valve 17 are sequentially arranged on the gas inlet pipe 18 from the input end to the output end, so that backfire can be further prevented, and the safety is improved.
The two superchargers 6 are arranged side by side, the arrangement direction of the stabilivolt 2, the electric control mixer 3 and the two superchargers 6 is consistent with the length direction of the engine 1, and the whole structure is compact and the volume is small.
The air cleaners 4 on both sides of the surge tank 2 extend outward of the engine 1, respectively. Two superchargers 6 are close to one end of the engine 1 far away from the intercooler 7, namely the surge tank 2 and the electric control mixer 3 are positioned between the superchargers 6 and the intercooler 7.
The two throttle valves 11 are connected through a connecting rod, and linkage can be achieved.
According to the invention, a plurality of air filters are connected with the electric control mixer through the pressure stabilizing pipes, and the air filters can be cleaned by closing the air valves corresponding to the blocked air filters without stopping the engine, so that the working efficiency and the stability of the engine can be ensured.
The above is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that several variations and modifications can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent.
Claims (7)
1. The low-concentration gas engine air inlet system is characterized by comprising a pressure stabilizing pipe (2) and an electric control mixer (3) which are arranged at the top of an engine (1), wherein at least one air filter (4) is arranged on each of two sides of the pressure stabilizing pipe (2), each air filter (4) is connected with the pressure stabilizing pipe (2) through an air valve (5), two superchargers (6) are arranged on one side of the electric control mixer (3), the pressure stabilizing pipe (2) is connected with the two superchargers (6) through the electric control mixer (3), an intercooler (7) connected with the two superchargers (6) is arranged at the top of the output end of the engine (1), air inlet pipes (9) for connecting the intercooler (7) and a cylinder (8) of the engine (1) are arranged on each of two sides of the engine (1), and one end of each intercooler (9) sequentially passes through a first flame arrester (10) and an air inlet pipe, Throttle valve (11) are connected intercooler (7), and the other end is equipped with explosion-proof valve (12), intake pipe (9) adopt sectional type welded structure.
2. A low-concentration gas engine intake system according to claim 1, wherein a gas intake pipe (18) connected to the electrically controlled mixer (3) is provided at one side of the engine (1).
3. The low-concentration gas engine air intake system of claim 2, wherein the gas intake pipe (18) is provided with a pressure maintaining valve (13), a second flame arrester (14), a cut-off valve (15), a filter (16) and a gas injection metering valve (17) in sequence from an input end to an output end.
4. The low-concentration gas engine air intake system according to claim 1, wherein the two superchargers (6) are arranged side by side, and the arrangement direction of the surge tank (2), the electric control mixer (3) and the two superchargers (6) is consistent with the length direction of the engine (1).
5. The intake system for a low-concentration gas engine according to claim 1, wherein the air cleaners (4) on both sides of the surge tank (2) are extended outward of the engine (1), respectively.
6. A low-concentration gas engine intake system according to claim 1, wherein two superchargers (6) are provided near an end of the engine (1) remote from the intercooler (7).
7. A low-concentration gas engine intake system according to claim 1, wherein the two throttle valves (11) are connected by a connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011188356.4A CN112240255A (en) | 2020-10-30 | 2020-10-30 | Air inlet system of low-concentration gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011188356.4A CN112240255A (en) | 2020-10-30 | 2020-10-30 | Air inlet system of low-concentration gas engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112240255A true CN112240255A (en) | 2021-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011188356.4A Pending CN112240255A (en) | 2020-10-30 | 2020-10-30 | Air inlet system of low-concentration gas engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112240255A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113389668A (en) * | 2021-07-30 | 2021-09-14 | 广西玉柴机器股份有限公司 | Semi-coke engine air inlet system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007023863A (en) * | 2005-07-14 | 2007-02-01 | Toyota Motor Corp | Intake device |
| CN202645790U (en) * | 2012-04-17 | 2013-01-02 | 胜利油田胜利动力机械集团有限公司 | Air intake mechanism for high-power gas engine |
| CN203948813U (en) * | 2014-04-24 | 2014-11-19 | 成都万友滤机有限公司 | Pipeline welding structure |
| CN204163899U (en) * | 2014-08-28 | 2015-02-18 | 河南柴油机重工有限责任公司 | A kind of pre-mixing type gas machine air inlet pipeline |
| CN109611241A (en) * | 2019-02-15 | 2019-04-12 | 广西玉柴机器股份有限公司 | In-line low-pressure fuel gas feed system |
| CN110410226A (en) * | 2019-07-29 | 2019-11-05 | 潍柴西港新能源动力有限公司 | V-type gas engine two sides powered balance control system and control method |
| CN210460906U (en) * | 2019-08-13 | 2020-05-05 | 甘肃喜匠智能设备科技有限公司 | Excavator filter easy to disassemble |
-
2020
- 2020-10-30 CN CN202011188356.4A patent/CN112240255A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007023863A (en) * | 2005-07-14 | 2007-02-01 | Toyota Motor Corp | Intake device |
| CN202645790U (en) * | 2012-04-17 | 2013-01-02 | 胜利油田胜利动力机械集团有限公司 | Air intake mechanism for high-power gas engine |
| CN203948813U (en) * | 2014-04-24 | 2014-11-19 | 成都万友滤机有限公司 | Pipeline welding structure |
| CN204163899U (en) * | 2014-08-28 | 2015-02-18 | 河南柴油机重工有限责任公司 | A kind of pre-mixing type gas machine air inlet pipeline |
| CN109611241A (en) * | 2019-02-15 | 2019-04-12 | 广西玉柴机器股份有限公司 | In-line low-pressure fuel gas feed system |
| CN110410226A (en) * | 2019-07-29 | 2019-11-05 | 潍柴西港新能源动力有限公司 | V-type gas engine two sides powered balance control system and control method |
| CN210460906U (en) * | 2019-08-13 | 2020-05-05 | 甘肃喜匠智能设备科技有限公司 | Excavator filter easy to disassemble |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113389668A (en) * | 2021-07-30 | 2021-09-14 | 广西玉柴机器股份有限公司 | Semi-coke engine air inlet system |
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Application publication date: 20210119 |
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| RJ01 | Rejection of invention patent application after publication |