CN205064130U - Mining explosion -proof automatically controlled EGR system - Google Patents
Mining explosion -proof automatically controlled EGR system Download PDFInfo
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- CN205064130U CN205064130U CN201520738582.3U CN201520738582U CN205064130U CN 205064130 U CN205064130 U CN 205064130U CN 201520738582 U CN201520738582 U CN 201520738582U CN 205064130 U CN205064130 U CN 205064130U
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Abstract
The utility model relates to a mining explosion -proof automatically controlled EGR system, including the EGR cooler, advancing exhaust manifold, EGR mixing arrangement and explosion -proof EGR valve, the both ends of EGR cooler are equipped with EGR intake pipe and EGR blast pipe, and the EGR intake pipe is connected with the gas vent that advances exhaust manifold, is equipped with water inlet and delivery port on the EGR cooler, EGR mixing arrangement's waste gas entry end and EGR blast pipe are connected, and EGR mixing arrangement's mist exit end and the air inlet that advances exhaust manifold are connected, explosion -proof EGR valve links to each other with EGR mixing arrangement, the pencil links together EGR valve and EGR the control unit, and the flow of EGR waste gas is controlled to the switching of the explosion -proof EGR valve of ECU control, EGR the control unit is located explosion -proof type electrical control device. The utility model discloses a EGR system has good explosion -proof effect for the EGR system can use under the ore deposit, the explosion -proof diesel engine NOx's of effectual reduction emission.
Description
Technical field
The utility model relates to the control technique field of mining diesel engine, particularly a kind of mine anti-explosion electric control EGR system.
Background technique
Particularity due to coal mine operation environment: ventilated is poor, the waste gas that diesel mine power car is discharged is difficult to timely discharge, therefore very large on the healthy impact of underground operators.Along with the continuous reinforcement of people's environmental consciousness, more and more stricter to the requirement of the noxious emission pollutant controlling anti-explosion diesel engine.MT990-2006 " anti-explosion diesel engine for mine general technical specifications " regulation that China is existing: under the operating mode that anti-explosion diesel engine specifies at MT220, in the exhaust of not diluted, the volume concentration of its harmful gas composition: carbon monoxide (CO) should more than 0.1%, nitrogen oxide (NO
x) be no more than 0.08%, and have the purpose improving standard-required further.Do not provide exhaust emissions treatment device and system in existing domestic mine engines system, it is to while environment, and brings adverse influence to the health of underground operators.
Exhaust gas recirculatioon EGR (ExhaustGasRecirculation) refers to that a part for combustion gas is isolated and imports the technology (gimmick or method) that air inlet side makes it burn once again by internal-combustion engine after combustion.Main purpose is reduce the nitrogen oxide (NO in Exhaust Gas
x) can fuel consumption rate be reduced with when sharing sub load, improve fuel economy.
Model utility content
The utility model provides a kind of mine anti-explosion electric control EGR system, effectively to process the exhaust emissions of mine engines, to reduce the environmental pollution of tail gas.
In order to solve the problems of the technologies described above, the utility model provides a kind of mine anti-explosion electric control EGR system, described mine anti-explosion electric control EGR system comprises cooler for recycled exhaust gas, intake and exhaust manifold and EGR mixing arrangement, described cooler for recycled exhaust gas is arranged on above described intake and exhaust manifold, EGR tracheae is provided with in described cooler for recycled exhaust gas, the two ends of described cooler for recycled exhaust gas are provided with the EGR suction tude and EGR outlet pipe that are communicated with described EGR tracheae, described EGR suction tude is connected with the relief opening of described intake and exhaust manifold, described cooler for recycled exhaust gas is provided with cooler for recycled exhaust gas water intake near one end of described EGR suction tude, the other end of described cooler for recycled exhaust gas is provided with cooler for recycled exhaust gas water outlet, described EGR mixing arrangement comprises exhaust gas entrance end, fresh air intake end and mixed gas outlet end, the exhaust gas entrance end of described EGR mixing arrangement is connected with described EGR outlet pipe, and the mixed gas outlet end of described EGR mixing arrangement is connected with the suction port of described intake and exhaust manifold, described EGR mixing arrangement is provided with explosion-proof EGR valve, and described explosion-proof EGR valve is electrically connected with the EGR control unit for control ECR system, and described EGR control unit is positioned at explosion-proof type electric control equipment.
The beneficial effects of the utility model are: the explosion-proof EGR valve used due to mine anti-explosion electric control EGR system and the explosion-proof type electric control equipment for control ECR system, there is good explosion-proof effect, egr system can be applied under ore deposit, preventing engine nitrogen oxide NO can be effectively reduced
xdischarge.
Further, it is poroid that the fresh air intake end of described EGR mixing arrangement is set to loudspeaker, and the large end of described bellmouth orifice is fresh air intake, and the small end of described bellmouth orifice connects one end of columnar through holes, and the other end of described columnar through holes is mixed gas outlet end.
The beneficial effect of above-mentioned further scheme is adopted to be: it is poroid that the fresh air intake end due to EGR mixing arrangement is designed to loudspeaker, such EGR mixing arrangement just has the function of Venturi tube, like this, whole egr system small volume, compact structure, be convenient to anti-explosion diesel engine each cylinder EGR waste gas be uniformly distributed simultaneously, reduced by gas pressure during mixed gas outlet end, and then improve the Energy Efficiency Ratio of starting.
Further, described exhaust gas entrance end is vertical with described columnar through holes, and described mixed gas outlet end is provided with the annular recess coaxial with described columnar through holes, and the exhaust gas entrance of described exhaust gas entrance end is communicated with described annular recess.
The beneficial effect of above-mentioned further scheme is adopted to be: after waste gas enters the annular recess of slightly tangential flow guiding, waste gas can enter convenient and can be uniformly distributed in annular recess, due to annular recess and columnar through holes coaxial, waste gas is made to be looped around the surrounding of fresh air, like this, the mixing of waste gas and fresh air will be very even.
Further, when the ratio in the aperture of the aperture of the large end of described bellmouth orifice and the small end of described bellmouth orifice is between 1.5 to 2.
Adopt the beneficial effect of above-mentioned further scheme to be: when the ratio in the aperture of large end of bellmouth orifice and the aperture of the small end of bellmouth orifice is between 1.5 to 2, the Venturi tube function of EGR mixing arrangement is best.
Further, the electronic control unit ECU for controlling motor is also provided with in described explosion-proof type electric control equipment.
The beneficial effect of above-mentioned further scheme is adopted to be: owing to being provided with the electronic control unit (ECU) for controlling the opening and closing of diesel engine EGR valve in explosion-proof type electric control equipment, like this, electronic control unit (ECU) just and EGR control unit be all arranged in explosion-proof type electric control equipment, improve explosion-proof and the level of integration of system.
Further, described EGR tracheae, described EGR suction tude and described EGR outlet pipe are all Double water-cooled structure tracheae.
Adopt the beneficial effect of above-mentioned further scheme to be: Double water-cooled structure tracheae improves the radiating effect of waste gas, can not high temperature be produced at the outer surface of body simultaneously, there is good explosion prevention function.
Further, described intake and exhaust manifold comprises main intake manifold, main exhaust manifold and shell, the side of described shell is provided with cylinder connecting base, described cylinder connecting base is provided with cylinder intake connecting port and cylinder exhaust connecting port, described main intake manifold and described main exhaust manifold are arranged on the outside of described shell, described main intake manifold is connected with multiple the intake manifold be communicated with it, described main exhaust manifold is connected with multiple the gas exhaust manifolds be communicated with it; Described intake manifold stretches into the inside of described shell, and be communicated with described cylinder intake connecting port, described gas exhaust manifold stretches into the inside of described shell, is communicated with described cylinder exhaust connecting port; Described shell is provided with water intake and water outlet, the linkage section of described main intake manifold and described each intake manifold is intake manifold bending section, the linkage section of described main exhaust manifold and described each gas exhaust manifold is gas exhaust manifold bending section, and described intake manifold bending section and described gas exhaust manifold bending section are all the curved gauge structure of water conservancy diversion.
The beneficial effect of above-mentioned further scheme is adopted to be: because intake manifold bending section and gas exhaust manifold bending section are all the curved gauge structure of water conservancy diversion; The curved gauge structure of water conservancy diversion increases the flow conductivity of air inlet and exhaust, reduces the generation of eddy current, to reduce the resistance of air inlet and exhaust, and the fluency of increase air inlet and exhaust.
Further, described cylinder exhaust connecting port, away from described main exhaust manifold, described each gas exhaust manifold is at least provided with two places and props up gas exhaust manifold bending section, and described gas exhaust manifold bending section is the curved gauge structure of water conservancy diversion.
The beneficial effect of above-mentioned further scheme is adopted to be: because cylinder exhaust connecting port is away from main exhaust manifold, the length of propping up gas exhaust manifold is like this longer, make the independence of each anti-explosion exhaust arm exhaust passage maximum possible, to reduce the circulation interference of each anti-explosion exhaust arm, reduce the exhaust resistance between each anti-explosion exhaust arm; Meanwhile, the curved gauge structure of water conservancy diversion increases the flow conductivity of air inlet and exhaust, reduces the generation of eddy current, to reduce the resistance of air inlet and exhaust, and the fluency of increase air inlet and exhaust.
Further, described in the cylinder at the curved gauge structure of described water conservancy diversion medium and small flexure plane place and macrobending face cylinder coaxial, the radius R 1 of described little flexure plane and the radius R 2 in described macrobending face meet following requirement:
R2/B=R1/B+a, wherein, a is 0.5 to 0.8, B is the water conservancy diversion curved gauge structure inlet calibre consistent with described R1 direction.
The beneficial effect of above-mentioned further scheme is adopted to be: by R1 and R2 described in the curved gauge structure of coupling water conservancy diversion and the relevant parameter of the curved gauge structure inlet calibre of water conservancy diversion, to carry the resistance reducing air inlet and exhaust further, the fluency of increase air inlet and exhaust.
Further, the area of the entrance of the curved gauge structure of described water conservancy diversion is F1, and the area of the outlet of the curved gauge structure of described water conservancy diversion is F2, and described F1 and described F2 meets following requirement: the value of F1/F2 is 1.2 to 2.0.
Adopt the beneficial effect of above-mentioned further scheme to be: curved for water conservancy diversion gauge structure is set to import large, go out young structure, make to reduce being separated of air and outer wall into air inlet and exhaust to greatest extent when changing and flowing to, and reduce the vortex scope of inwall to greatest extent, thus reduce the resistance of intake and exhaust.
Accompanying drawing explanation
Fig. 1 is the utility model mine anti-explosion electric control EGR system structural drawing,
Fig. 2 is EGR mixing arrangement structural drawing,
Fig. 3 is EGR mixing arrangement sectional drawing,
Fig. 4 is intake and exhaust manifold three-dimensional structure diagram,
Fig. 5 is the stereochemical structure of intake manifold,
Fig. 6 is the stereochemical structure of gas exhaust manifold,
Fig. 7 is the stereochemical structure of intake and exhaust manifold combination,
Fig. 8 is the part sectioned view of the curved gauge structure of water conservancy diversion in Fig. 5,
Fig. 9 is the utility model mine anti-explosion electric control EGR system example structure figure.
In accompanying drawing, the list of parts representated by each label is as follows:
01, cooler for recycled exhaust gas, 011, EGR suction tude, 012, EGR outlet pipe, 013, cooler for recycled exhaust gas water intake, 014, cooler for recycled exhaust gas water outlet, 02, intake and exhaust manifold, 021, main intake manifold, 0211, prop up intake manifold, 0212, intake manifold bending section, 0213, main intake manifold interface, 022, main exhaust manifold, 0221, prop up gas exhaust manifold, 0222, gas exhaust manifold bending section, 0223, main exhaust manifold head, 0224, prop up gas exhaust manifold bending section, 023, shell, 0231, water intake, 0232, water outlet, 0233, relief opening, 024, , 0241, cylinder intake connecting port, 0242, cylinder exhaust connecting port, 03, explosion-proof EGR valve, 04, EGR mixing arrangement, 041, exhaust gas entrance end, 042, fresh air intake end, 043, mixed gas outlet end, 05, explosion-proof type electric control equipment, 06, air inflow anti-explosion fence, 07, heat radiator assembly, 08, explosion-proof water-cooled pressurized machine
Embodiment
Below in conjunction with drawings and embodiments, the utility model is further described.
That part Fig. 1 to Fig. 3 wiped by the utility model mine anti-explosion electric control EGR system structural drawing, mine anti-explosion electric control EGR system comprises cooler for recycled exhaust gas 01, intake and exhaust manifold 02 and EGR mixing arrangement 04, cooler for recycled exhaust gas 01 is arranged on above intake and exhaust manifold 02, EGR tracheae is provided with in cooler for recycled exhaust gas 01, the two ends of cooler for recycled exhaust gas 01 are provided with the EGR suction tude 011 and EGR outlet pipe 012 that are communicated with EGR tracheae, EGR suction tude 011 is connected with the relief opening of intake and exhaust manifold 02, cooler for recycled exhaust gas 01 is provided with cooler for recycled exhaust gas water intake 013 near one end of EGR suction tude 011, the other end of cooler for recycled exhaust gas 01 is provided with cooler for recycled exhaust gas water outlet 014, EGR mixing arrangement 04 comprises exhaust gas entrance end 041, fresh air intake end 042 and mixed gas outlet end 043, the exhaust gas entrance end 041 of EGR mixing arrangement 04 is connected with EGR outlet pipe 012, and the mixed gas outlet end 043 of EGR mixing arrangement 04 is connected with the suction port of intake and exhaust manifold 02, EGR mixing arrangement 04 is provided with explosion-proof EGR valve 03, and explosion-proof EGR valve 03 is electrically connected with the EGR control unit for control ECR system, and EGR control unit is positioned at explosion-proof type electric control equipment 05, EGR tracheae, EGR suction tude 011 and EGR outlet pipe 012 are all Double water-cooled structure tracheae, wherein, explosion-proof EGR valve 03 is pouring type solenoid valve.
It is poroid that the fresh air intake end 042 of EGR mixing arrangement 04 is set to loudspeaker, and the large end of bellmouth orifice is fresh air intake, and the small end of bellmouth orifice connects one end of columnar through holes, and the other end of columnar through holes is mixed gas outlet end 043.
Exhaust gas entrance end 041 is vertical with columnar through holes, and mixed gas outlet end 043 is provided with the annular recess coaxial with columnar through holes, and the exhaust gas entrance of exhaust gas entrance end 041 is communicated with annular recess; The ratio in the aperture of large end of bellmouth orifice and the aperture of the small end of bellmouth orifice is between 1.5 to 2; The electronic control unit for controlling motor is also provided with in explosion-proof type electric control equipment 05.
The explosion-proof EGR valve used due to mine anti-explosion electric control EGR system and the explosion-proof type electric control equipment for control ECR system, have good explosion-proof effect, make egr system may be used for underground coal mine, can effectively reduce the discharge of preventing engine NOx; Meanwhile, it is poroid that the fresh air intake end of EGR mixing arrangement is set to loudspeaker, and such EGR mixing arrangement just has the function of Venturi tube, whole egr system small volume, compact structure, is convenient to anti-explosion diesel engine each cylinder EGR waste gas simultaneously and is uniformly distributed; Due to annular recess and columnar through holes coaxial, make waste gas be looped around the surrounding of fresh air, the mixing of waste gas and fresh air will be very even; The ratio in the aperture of large end of bellmouth orifice and the aperture of the small end of bellmouth orifice is between 1.5 to 2, and the Venturi tube function of EGR mixing arrangement is best; Double water-cooled structure tracheae improves the radiating effect of waste gas, can not produce high temperature simultaneously, have good explosion prevention function at the outer surface of body.
The utility model intake and exhaust manifold structural drawing is see Fig. 4 to Fig. 8, intake and exhaust manifold 02 comprises main intake manifold 021, main exhaust manifold 022 and shell 023, the side of shell 023 is provided with cylinder connecting base 024, cylinder connecting base 024 is provided with cylinder intake connecting port 0241 and cylinder exhaust connecting port 0242, main intake manifold 021 and main exhaust manifold 022 are arranged on the outside of shell 023, main intake manifold 021 is connected with multiple the intake manifold 0211 be communicated with it, main exhaust manifold 022 is connected with multiple the gas exhaust manifolds 0221 be communicated with it; Prop up the inside that intake manifold 0211 stretches into shell 023, be communicated with cylinder intake connecting port 0241, a gas exhaust manifold 0221 stretches into the inside of shell 023, is communicated with cylinder exhaust connecting port 0242; Shell 023 is provided with water intake 0231 and water outlet 0232, the linkage section of main intake manifold 021 and each intake manifold 0211 is intake manifold bending section 0212, the linkage section of main exhaust manifold 022 and each gas exhaust manifold 0221 is gas exhaust manifold bending section 0222, and intake manifold bending section 0212 and gas exhaust manifold bending section 0222 are all the curved gauge structure of water conservancy diversion.Cylinder exhaust connecting port 0242, away from main exhaust manifold 022, each gas exhaust manifold 0221 is at least provided with two places and props up gas exhaust manifold bending section 0224, and a gas exhaust manifold bending section 0224 is the curved gauge structure of water conservancy diversion.
The cylinder at the curved gauge structure of water conservancy diversion medium and small flexure plane place and macrobending face cylinder coaxial, the radius R 1 of little flexure plane and the radius R 2 in macrobending face meet following requirement:
R2/B=R1/B+a, wherein, a is 0.5 to 0.8, B is the water conservancy diversion curved gauge structure inlet calibre consistent with R1 direction.The area of the entrance of the curved gauge structure of water conservancy diversion is F1, and the area of the outlet of the curved gauge structure of water conservancy diversion is that F2, F1 and F2 meet following requirement: the value of F1/F2 is 1.2 to 2.0.
Because intake manifold bending section and gas exhaust manifold bending section are all the curved gauge structure of water conservancy diversion; The curved gauge structure of water conservancy diversion increases the flow conductivity of air inlet and exhaust, reduces the generation of eddy current, to reduce the resistance of air inlet and exhaust, and the fluency of increase air inlet and exhaust; By the relevant parameter of R1 and R2 and the curved gauge structure inlet calibre of water conservancy diversion in the curved gauge structure of coupling water conservancy diversion, carry the resistance reducing air inlet and exhaust further, increase the fluency of air inlet and exhaust; Curved for water conservancy diversion gauge structure is set to import large, go out young structure, make to reduce being separated of air and outer wall to greatest extent when changing and flowing to into air inlet and exhaust, and reduce the vortex scope of inwall to greatest extent, thus the resistance of reduction intake and exhaust; Wherein, the resistance of air inlet has 2.25 original newton ~ 2.5 newton to be kept to 1.12 newton ~ 1.3 newton; The resistance of exhaust has 2.83 original newton ~ 3.15 newton to be kept to 1.54 newton ~ 1.66 newton; About its resistance reduces half, the Energy Efficiency Ratio of motor is very high.
The utility model mine anti-explosion electric control EGR system example structure figure, see Fig. 9, comprises cooler for recycled exhaust gas 01, intake and exhaust manifold 02, EGR mixing arrangement 04, explosion-proof EGR valve 03, explosion-proof type electric control equipment 05, air inflow anti-explosion fence 06, heat radiator assembly 07 and explosion-proof water-cooled pressurized machine 08; On the basis of Fig. 1 structure, in the Inner eycle of the cooler for recycled exhaust gas water outlet 014 inflow radiator assembly 07 of cooler for recycled exhaust gas 01, connect explosion-proof water-cooled pressurized machine 08 in heat radiator assembly 07 to guarantee water-cooled and pressurized effect; The fresh air output terminal of heat radiator assembly 07 is connected with the fresh air intake end 042 of EGR mixing arrangement 04 by air inflow anti-explosion fence 06.
In description of the present utility model, it will be appreciated that, term " " center ", " length ", " width ", " on ", D score, " vertically ", " level ", " top ", " end ", the orientation of the instruction such as " interior " or position relationship be based on orientation shown in the drawings or position relationship; be only the utility model and simplified characterization for convenience of description; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature immediately below second feature and tiltedly below, or only represent that fisrt feature level height is less than second feature.
Above the utility model mine anti-explosion electric control EGR system is described in detail, applies specific case herein and principle of the present utility model and mode of execution are set forth.The explanation of above embodiment just understands core concept of the present utility model for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (10)
1. a mine anti-explosion electric control EGR system, it is characterized in that, described mine anti-explosion electric control EGR system comprises cooler for recycled exhaust gas (01), intake and exhaust manifold (02) and EGR mixing arrangement (04), described cooler for recycled exhaust gas (01) is arranged on described intake and exhaust manifold (02) top, described cooler for recycled exhaust gas is provided with EGR tracheae in (01), the two ends of described cooler for recycled exhaust gas (01) are provided with the EGR suction tude (011) and EGR outlet pipe (012) that are communicated with described EGR tracheae, described EGR suction tude (011) is connected with the relief opening of described intake and exhaust manifold (02), described cooler for recycled exhaust gas (01) is provided with cooler for recycled exhaust gas water intake (013) near one end of described EGR suction tude (011), the other end of described cooler for recycled exhaust gas (01) is provided with cooler for recycled exhaust gas water outlet (014), described EGR mixing arrangement (04) comprises exhaust gas entrance end (041), fresh air intake end (042) and mixed gas outlet end (043), the exhaust gas entrance end (041) of described EGR mixing arrangement (04) is connected with described EGR outlet pipe (012), and the mixed gas outlet end (043) of described EGR mixing arrangement (04) is connected with the suction port of described intake and exhaust manifold (02), described EGR mixing arrangement (04) is provided with explosion-proof EGR valve (03), described explosion-proof EGR valve (03) is electrically connected with the EGR control unit for control ECR system, and described EGR control unit is positioned at explosion-proof type electric control equipment (05).
2. mine anti-explosion electric control EGR system according to claim 1, it is characterized in that, it is poroid that the fresh air intake end (042) of described EGR mixing arrangement (04) is set to loudspeaker, the large end of described bellmouth orifice is fresh air intake, the small end of described bellmouth orifice connects one end of columnar through holes, and the other end of described columnar through holes is mixed gas outlet end (043).
3. mine anti-explosion electric control EGR system according to claim 2, it is characterized in that, described exhaust gas entrance end (041) is vertical with described columnar through holes, described mixed gas outlet end (043) is provided with the annular recess coaxial with described columnar through holes, and the exhaust gas entrance of described exhaust gas entrance end (041) is communicated with described annular recess.
4. mine anti-explosion electric control EGR system according to claim 3, is characterized in that, the ratio in the aperture of the aperture of the large end of described bellmouth orifice and the small end of described bellmouth orifice is between 1.5 to 2.
5. the mine anti-explosion electric control EGR system according to the arbitrary claim of Claims 1-4, is characterized in that, is also provided with the electronic control unit for controlling motor in described explosion-proof type electric control equipment (05).
6. the mine anti-explosion electric control EGR system according to the arbitrary claim of Claims 1-4, is characterized in that, described EGR tracheae, described EGR suction tude (011) and described EGR outlet pipe (012) are all Double water-cooled structure tracheae.
7. the mine anti-explosion electric control EGR system according to the arbitrary claim of Claims 1-4, it is characterized in that, described intake and exhaust manifold (02) comprises main intake manifold (021), main exhaust manifold (022) and shell (023), the side of described shell (023) is provided with cylinder connecting base (024), described cylinder connecting base (024) is provided with cylinder intake connecting port (0241) and cylinder exhaust connecting port (0242), described main intake manifold (021) and described main exhaust manifold (022) are arranged on the outside of described shell (023), described main intake manifold (021) is connected with multiple the intake manifold (0211) be communicated with it, described main exhaust manifold (022) is connected with multiple the gas exhaust manifolds (0221) be communicated with it, described intake manifold (0211) stretches into the inside of described shell (023), be communicated with described cylinder intake connecting port (0241), described gas exhaust manifold (0221) stretches into the inside of described shell (023), is communicated with described cylinder exhaust connecting port (0242), described shell (023) is provided with water intake (0231) and water outlet (0232), the linkage section of described main intake manifold (021) and described each intake manifold (0211) is intake manifold bending section (0212), the linkage section of described main exhaust manifold (022) and described each gas exhaust manifold (0221) is gas exhaust manifold bending section (0222), and described intake manifold bending section (0212) and described gas exhaust manifold bending section (0222) are all the curved gauge structure of water conservancy diversion.
8. mine anti-explosion electric control EGR system according to claim 7, it is characterized in that, described cylinder exhaust connecting port (0242) is away from described main exhaust manifold (022), described each gas exhaust manifold (0221) is at least provided with two places and props up gas exhaust manifold bending section (0224), described gas exhaust manifold bending section (0224) is the curved gauge structure of water conservancy diversion.
9. mine anti-explosion electric control EGR system according to claim 8, it is characterized in that, described in the cylinder at the curved gauge structure of described water conservancy diversion medium and small flexure plane place and macrobending face cylinder coaxial, the radius R 1 of described little flexure plane and the radius R 2 in described macrobending face meet following requirement:
R2/B=R1/B+a, wherein, a is 0.5 to 0.8, B is the water conservancy diversion curved gauge structure inlet calibre consistent with described R1 direction.
10. mine anti-explosion electric control EGR system according to claim 9, it is characterized in that, the area of the entrance of the curved gauge structure of described water conservancy diversion is F1, and the area of the outlet of the curved gauge structure of described water conservancy diversion is F2, and described F1 and described F2 meets following requirement: the value of F1/F2 is 1.2 to 2.0.
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| CN201520738582.3U CN205064130U (en) | 2015-09-22 | 2015-09-22 | Mining explosion -proof automatically controlled EGR system |
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| CN201520738582.3U CN205064130U (en) | 2015-09-22 | 2015-09-22 | Mining explosion -proof automatically controlled EGR system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156235A (en) * | 2015-09-22 | 2015-12-16 | 成都天地直方发动机有限公司 | Explosion-proof electrically controlled EGR system for mine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156235A (en) * | 2015-09-22 | 2015-12-16 | 成都天地直方发动机有限公司 | Explosion-proof electrically controlled EGR system for mine |
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