CN201963382U - Double-layer exhaust pipe for explosion-proof diesel engine - Google Patents
Double-layer exhaust pipe for explosion-proof diesel engine Download PDFInfo
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- CN201963382U CN201963382U CN2011200670429U CN201120067042U CN201963382U CN 201963382 U CN201963382 U CN 201963382U CN 2011200670429 U CN2011200670429 U CN 2011200670429U CN 201120067042 U CN201120067042 U CN 201120067042U CN 201963382 U CN201963382 U CN 201963382U
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Abstract
The utility model discloses a double-layer exhaust pipe for an explosion-proof diesel engine. The double-layer exhaust pipe comprises a cast exhaust manifold and a cast exhaust bent pipe, wherein the side walls of the exhaust manifold and the exhaust bent pipe consist of inner and outer plates with wall thickness of 6 to 9 millimeters, and cooling water is introduced into the interlayer of the exhaust manifold and the exhaust bent pipe; and the exhaust manifold comprises an inside wall with an air inlet, an outside wall, a bolt perforated pipe cast on the side wall, a flange AII arranged at the closed position of the inside and outside walls and provided with a water outlet and an air outlet, a flange AI positioned on the opposite side of the flange AII and provided with a water inlet, and a drainage port. The exhaust bent pipe comprises an arc bent pipe shaped side wall of a double-layer structure, a flange BI and a flange BII, wherein one end of the side wall of the flange BI is matched with the flange AII and the flange BI is provided with a bent pipe air inlet and a bent pipe water inlet, and the other end of the side wall of the flange BII is provided with a bent pipe air outlet and a bent pipe water outlet. The strength and the sealing property of the exhaust pipe are further improved; and the double-layer exhaust pipe has low processing difficulty, few processing processes, low cost and temperature resistance, and effectively avoids frost cracking caused by the residual cooling water when the temperature is low.
Description
Technical field
The utility model relates to a kind of outlet pipe of diesel engine, specifically is meant the anti-explosion diesel engine air gap pipes.
Background technique
When diesel applications during in the medium inflammable and explosive occasion of the coal mining mine of inflammable gas gas, need carry out explosion-proof processing, explosion-proof technology requires the surface temperature of diesel engine exhaust system component to be lower than 150 ℃, delivery temperature is less than 70 ℃, so the water-cooled spacer structure of the many employings of the outlet pipe of anti-explosion diesel engine.Chinese patent ZL200720043241.x proposes the double-deck water cooled duct of a kind of anti-explosion diesel engine, outlet pipe is provided with the fixed hole that is used for fixing outlet pipe, outlet pipe have with diesel-engine body on oral area exterior edge face, the air outlet madial wall of fitting, madial wall be provided with diesel-engine body on the corresponding inlet hole in air outlet, fixed hole is corresponding with the installation screw on the diesel-engine body, relative with madial wall is the outer side wall of outlet pipe, has exhaust port on the outer side wall, madial wall and outer side wall closure form the exhaust passage, inlet hole communicates with the exhaust passage, in madial wall and outer side wall are all served as reasons, lamina rara externa is formed, the double layer construction of logical cooling water in the interlayer, the lamina rara externa of madial wall has outward extending flange edge with the closed place of outer side wall, and fixed hole is arranged on the flange edge.This patent has solved the problem of outlet pipe and joint, diesel engine air outlet processing difficulties, but generally speaking, outlet pipe need support pressurized machine and exhaust manifold, this fixed form deforms because of not satisfying requirement of strength easily, and outlet pipe is a steel plate material, in order to prevent gas leakage or leak that very high to the welding quality requirement, difficulty of processing is bigger; In addition, this structure makes the remaining cooling water of part in the interlayer, and when external environment is lower than 0 ℃, residual cooling water is easy to cause the outlet pipe bursting by freezing behind engine shutdown.
The model utility content
The utility model technical issues that need to address provide the anti-explosion diesel engine air gap pipes that a kind of intensity increases, is convenient to process, prevent to cause because of remaining cooling water the outlet pipe bursting by freezing.
For solving the problems of the technologies described above, the technological scheme that the utility model adopted is:
A kind of anti-explosion diesel engine air gap pipes, comprise mainly by madial wall, outer side wall, the gas exhaust manifold that the closed outward extending flange AII in place of madial wall and outer side wall constitutes, madial wall and outer side wall are closed into the exhaust passage, the inlet hole corresponding with the diesel-engine body air outlet is set on the madial wall of gas exhaust manifold, outer side wall is positioned at the opposite side of madial wall, the air outlet hole and the flange fixed hole that are communicated with the exhaust passage are set on the flange A II, madial wall, outer side wall all is set to the sandwich structure that is made of inner plating and lamina rara externa, logical cooling water in the interlayer of sidewall, described gas exhaust manifold is the cast-in-block integrative-structure, be cast with the bolt penetration hole pipe that connects madial wall and outer side wall on the gas exhaust manifold, the end face of flange A II is that the osculum that is communicated with interlayer is set on the smooth surface of grinding and flange A II, the couple positioned opposite flange A I of gas exhaust manifold upper flange AII, be provided with and corresponding water inlet of diesel-engine body water outlet and flange fixed hole on the flange A I, the low spot place of gas exhaust manifold is provided with the drain opening of getting rid of remaining cooling water, the flange A II end of gas exhaust manifold connects the cast-in-block exhaust elbow, exhaust elbow is the sandwich structure of curve bend shape, logical cooling water in the interlayer of exhaust elbow, the end face that exhaust elbow one end setting cooperates with flange A II is through the flange B of grinding I, the end face that the setting of the exhaust elbow the other end is connected with the pressurized machine of diesel engine is through the flange B of grinding II, the bend gas intake hole corresponding with the air outlet hole of flange A II is set on the flange B I, the bend pipe water inlet corresponding with the osculum of flange A II is provided with bend pipe air outlet hole and bend pipe osculum on the flange B II.
Further improvement of the utility model is: the inside and outside laminate wall thickness of described gas exhaust manifold and exhaust elbow is the 6-9 millimeter.
Further improvement of the utility model is: the inside and outside laminate wall thickness of described gas exhaust manifold and exhaust elbow is 7 millimeters.
Because the technological progress of having adopted technique scheme, the utility model to obtain is:
The utility model designs double-deck gas exhaust manifold and exhaust elbow structure, internal layer passes through high-temperature gas, skin passes through cooling medium, the final outlet pipe surface temperature that realizes is not higher than 150 ℃ requirement, be applicable under the special working environment motor that surface temperature is had strict restriction, the product of surface temperature authentication requesting is arranged with explosion-proof engine etc. as marine engine, colliery; The utility model adopts spheroidal graphite cast iron cast-in-block outlet pipe, and at place, the water inlet setting of gas exhaust manifold and the water outlet flange connecting end face of diesel-engine body, also be provided with fixed hole on the madial wall of gas exhaust manifold and the outside, effectively fixedly outlet pipe the time, also improved the bulk strength of outlet pipe greatly, after supporting pressurized machine and bearing house steward, be difficult for deforming, and the form processing of cast inblock and face grinding prevents from that effectively outlet pipe from leaking or gas leak phenomenon; The utility model sets out the water hole at gas exhaust manifold low spot place, effectively avoids the bursting by freezing that is caused by remaining cooling water under the low situation of temperature; The utility model is also verified the optimum wall thickness of the outlet pipe that obtains the spheroidal graphite cast iron casting through test of many times, this wall thickness is the preferred value that effectively guarantees outlet pipe bulk strength and product qualified rate, and the utility model difficulty of processing is low, manufacturing procedure is few, cost is low and have heat resistance, intensity and sealing has all obtained further raising.
Description of drawings
Fig. 1 is an overall structure schematic representation of the present utility model;
Fig. 2 is the left view of the utility model gas exhaust manifold;
Fig. 3 is the right elevation of the utility model gas exhaust manifold;
Fig. 4 is that the utility model A-A is to schematic representation;
Fig. 5 is the plan view of the utility model exhaust elbow.
Wherein, 1, madial wall, 2, outer side wall, 3, inlet hole, 4, air outlet hole, 5, the water inlet, 6, osculum, 7, drain opening, 8, flange fixed hole, 9, flange A I, 10, the bend gas intake hole, 11, bend pipe water inlet, 12, the bend pipe air outlet hole, 13, the bend pipe osculum, 14, flange A II, 15, flange B I, 16, flange B II, 17, gas exhaust manifold, 18, exhaust elbow, 19, the bolt penetration hole pipe.
Embodiment
Below in conjunction with embodiment the utility model is described in further details:
A kind of anti-explosion diesel engine air gap pipes as shown in the figure, comprise cast-in-block gas exhaust manifold 17 and exhaust elbow 18, can adopt the spheroidal graphite cast iron casting.Gas exhaust manifold 17 comprises the flange of the end face at madial wall 1, outer side wall 2 and two ends through grinding.On madial wall 1 and the diesel-engine body fit in oral area exterior edge face, air outlet, and madial wall 1 is provided with the inlet hole corresponding with air outlet on the diesel-engine body 3.Outer side wall 2 is relative with madial wall 1, and madial wall 1 and outer side wall 2 are closed into the exhaust passage.Madial wall 1 and outer side wall 2 all are that sandwich structure inner plating and lamina rara externa, the interior logical cooling water of interlayer is set.Madial wall 1 and the outward extending flange AII 14 that outer side wall 2 closed places are provided with are provided with air outlet hole 4, the osculum 6 that is communicated with interlayer, the flange fixed hole 8 that is communicated with the exhaust passage on the flange AII 14.A side relative with flange A II 14 on the gas exhaust manifold is provided with flange A I 9, and water inlet 5, the flange fixed hole 8 corresponding with the water outlet of diesel-engine body are set on the flange A I 9.Casting connects the bolt penetration hole pipe 19 that is used for fixing gas exhaust manifold of madial wall 1 and outer side wall 2 on the gas exhaust manifold 17.The low spot place of gas exhaust manifold 17 is provided with the drain opening 7 that is used to get rid of remaining cooling water.Exhaust elbow 18 comprises the flange of the end face at the sidewall of curve bend shape and sidewall two ends through grinding.Sidewall is set to sandwich structure inner plating and lamina rara externa, the interior logical cooling water of interlayer.Sidewall one end setting and the flange B I 15 that the flange A II 14 of gas exhaust manifold cooperates are provided with bend gas intake hole 10 and bend pipe water inlet 11 on the flange B I 15.The sidewall the other end is provided with the outward extending flange B II 16 be connected with the pressurized machine of diesel engine, and flange B II 16 is provided with the bend pipe air outlet hole 12 corresponding with the air outlet hole of flange A II, with the corresponding bend pipe osculum 13 of the osculum of flange A II.Gas exhaust manifold 17 is the 6-9 millimeter with the inside and outside laminate wall thickness of exhaust elbow 18, preferred 7 millimeters.
Claims (3)
1. anti-explosion diesel engine air gap pipes, comprise mainly by madial wall (1), outer side wall (2), madial wall (1) and the closed gas exhaust manifold (17) of locating outward extending flange A II (14) formation of outer side wall (2), madial wall (1) is closed into the exhaust passage with outer side wall (2), the madial wall of gas exhaust manifold (1) is gone up the inlet hole (3) corresponding with the diesel-engine body air outlet is set, outer side wall (2) is positioned at the opposite side of madial wall (1), the air outlet hole (4) and the flange fixed hole (8) that are communicated with the exhaust passage are set on the flange A II, madial wall (1), outer side wall (2) all is set to the sandwich structure that is made of inner plating and lamina rara externa, logical cooling water in the interlayer of sidewall, it is characterized in that: described gas exhaust manifold (17) is the cast-in-block integrative-structure, be cast with the bolt penetration hole pipe (19) that connects madial wall (1) and outer side wall (2) on the gas exhaust manifold (17), the end face of flange A II (14) is to go up the osculum (6) that setting is communicated with interlayer through the smooth surface of grinding and flange A II (14), the couple positioned opposite flange A I (9) of gas exhaust manifold upper flange A II (14), be provided with and corresponding water inlet of diesel-engine body water outlet (5) and flange fixed hole (8) on the flange A I, the low spot place of gas exhaust manifold (17) is provided with the drain opening (7) of getting rid of remaining cooling water, flange A II (14) end of gas exhaust manifold (17) connects cast-in-block exhaust elbow (18), exhaust elbow (18) is the sandwich structure of curve bend shape, logical cooling water in the interlayer of exhaust elbow (18), the end face that exhaust elbow (18) one end settings cooperate with flange A II (14) is through the flange B of grinding I (15), the end face that exhaust elbow (18) the other end setting is connected with the pressurized machine of diesel engine is through the flange B of grinding II (16), flange B I (15) goes up the bend gas intake hole (10) corresponding with the air outlet hole (4) of flange A II is set, the bend pipe water inlet (11) corresponding with osculum (6) is provided with bend pipe air outlet hole (12) and bend pipe osculum (13) on the flange B II (16).
2. anti-explosion diesel engine air gap pipes according to claim 1 is characterized in that: described gas exhaust manifold (17) is the 6-9 millimeter with the inside and outside laminate wall thickness of exhaust elbow (18).
3. anti-explosion diesel engine air gap pipes according to claim 1 is characterized in that: described gas exhaust manifold (17) is 7 millimeters with the inside and outside laminate wall thickness of exhaust elbow (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200670429U CN201963382U (en) | 2011-03-15 | 2011-03-15 | Double-layer exhaust pipe for explosion-proof diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200670429U CN201963382U (en) | 2011-03-15 | 2011-03-15 | Double-layer exhaust pipe for explosion-proof diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201963382U true CN201963382U (en) | 2011-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200670429U Expired - Lifetime CN201963382U (en) | 2011-03-15 | 2011-03-15 | Double-layer exhaust pipe for explosion-proof diesel engine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720578A (en) * | 2012-06-27 | 2012-10-10 | 浙江大学 | Explosion-proof diesel engine exhaust pipe |
| CN102852617A (en) * | 2012-09-25 | 2013-01-02 | 康跃科技股份有限公司 | Double-runner variable exhaust manifold with three valves |
| CN103590882A (en) * | 2013-11-26 | 2014-02-19 | 中国北方发动机研究所(天津) | Exhaust pipe with cooling water interlayer |
| CN107269374A (en) * | 2016-03-31 | 2017-10-20 | 曼柴油机和涡轮机欧洲股份公司 | Exhaust after treatment system and internal combustion engine |
| CN110344922A (en) * | 2019-08-01 | 2019-10-18 | 浙江创格科技有限公司 | A kind of water jacket gas exhaust pipe used for diesel engine |
-
2011
- 2011-03-15 CN CN2011200670429U patent/CN201963382U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720578A (en) * | 2012-06-27 | 2012-10-10 | 浙江大学 | Explosion-proof diesel engine exhaust pipe |
| CN102852617A (en) * | 2012-09-25 | 2013-01-02 | 康跃科技股份有限公司 | Double-runner variable exhaust manifold with three valves |
| CN103590882A (en) * | 2013-11-26 | 2014-02-19 | 中国北方发动机研究所(天津) | Exhaust pipe with cooling water interlayer |
| CN107269374A (en) * | 2016-03-31 | 2017-10-20 | 曼柴油机和涡轮机欧洲股份公司 | Exhaust after treatment system and internal combustion engine |
| CN110344922A (en) * | 2019-08-01 | 2019-10-18 | 浙江创格科技有限公司 | A kind of water jacket gas exhaust pipe used for diesel engine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110907 |
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| CX01 | Expiry of patent term |