CN201972802U - Cylinder cover water outlet pipe on marine diesel - Google Patents
Cylinder cover water outlet pipe on marine diesel Download PDFInfo
- Publication number
- CN201972802U CN201972802U CN2011200276992U CN201120027699U CN201972802U CN 201972802 U CN201972802 U CN 201972802U CN 2011200276992 U CN2011200276992 U CN 2011200276992U CN 201120027699 U CN201120027699 U CN 201120027699U CN 201972802 U CN201972802 U CN 201972802U
- Authority
- CN
- China
- Prior art keywords
- pipe
- water outlet
- outlet pipe
- arm
- cylinder cap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Joints Allowing Movement (AREA)
Abstract
The utility model discloses a cylinder cover water outlet pipe on a marine diesel, which comprises a water outlet main pipe, a metal corrugated pipe, a first branch pipe and a second branch pipe, wherein the water outlet main pipe and the metal corrugated pipe are arranged along the water inlet direction, the first branch pipe and the second branch pipe are connected to the water outlet main pipe, the water outlet main pipe is connected with the metal corrugated pipe through a flange, a branch pipe with a flange extends out from the side wall of the water outlet main pipe and is connected to the first branch pipe through the flange arranged at the end of the first branch pipe, the second branch pipe is welded and fixed on the side wall of the water outlet main pipe, and a throttle threaded plug is arranged at the front end of the branch pipe on the water outlet main pipe. The cylinder cover water outlet pipe fulfills normal functions, can be normally prefabricated and has high fault tolerance, therefore the problems of fire work on a station, misalignment and fracture of the corrugated pipe, pipe fracture and the like are solved.
Description
Technical field
The utility model relates to marine diesel engine, particularly relates to the cylinder cap outlet pipe on the marine diesel engine.
Background technique
The cylinder cap outlet pipe is positioned at cylinder of diesel engine and covers, and is used for the discharging of jacket-cooling water and the cooling of outlet valve, in order to control flow velocity, is furnished with restricting orifice in piping.Joint chair in the piping is used for the installation of thermometer, so that obtain the temperature data of cooling water.
The cylinder cap outlet pipe of prior art is constructed as shown in Figure 1, and it is that outfall sewer has been divided into the first cylinder cap outlet pipe 1 ' and 5 ' two parts of the second cylinder cap outlet pipe that its structure is formed, and two parts adopt flange to connect, and are furnished with restricting orifice between the flange junction surface.Wherein the other end of the first cylinder cap outlet pipe 1 ' connects a corrugated flexible hose 2 ' by flange, be connected with first arm 4 ' at the first cylinder cap outlet pipe, 1 ' sidewall, the sidewall of the second cylinder cap outlet pipe 5 ' is provided with 3 ', two arms of second arm and is used for the outlet valve cooling.
In the long-term production practice, we find that the cylinder cap outlet pipe of said structure on the marine diesel engine of types such as 6S50MC-C, 5S60MC exists can't be prefabricated, bellows misaligns, arm shakes easily problem such as splits, by comprehensive various situations, we analyze existing situation.
The first, cylinder cap outlet pipe of the prior art design can't be prefabricated, need be on the platform position pipe.Because pipe belongs to the pipe of big part junction surface, and be rigidly connected too much, to having relatively high expectations of dimensional accuracy.Because design margin is little, pipe is too much, and it is bad that factors such as welding deformation cause pipe to couple together alignment, is prone to deviation, and prepackage can't accurately be located, and makes cylinder cap outlet pipe many places need on-the-spot pipe, has prolonged the manufacture cycle of diesel engine.
The second, the rigid connector of cylinder cap outlet pipe design is too much in the prior art, and a bellows and a length of tube are too short, causes pipe stress to be concentrated, and very easily ruptures.Because bellows length is too short, absorb stretching, diastrophic ability is less.Add that the centering difficulty is big, the deviation of pipe position, cause the suffered stress of bellows and welded flange thereof excessive, very easily rupture.
Three, to exist stress excessive for the arm of the cylinder cap outlet pipe of S50MC-C model design, the crackly problem of pipe and weld thereof.Because a length of tube is shorter, small machining error can be exaggerated, and makes installation difficulty strengthen, and the stress that has increased arm is simultaneously concentrated.In the process of diesel engine work, because the distortion that vibration causes can make arm be easy to occur breaking.
Summary of the invention
The purpose of the utility model cylinder cap outlet pipe is for overcoming above-mentioned the deficiencies in the prior art, cylinder cap on a kind of marine diesel engine outlet pipe is provided, adopt new structural type, except that satisfying function of use, also improved the reliability of work, make the cylinder cap outlet pipe can realize prepackage, to shorten the manufacture cycle of diesel engine.
In order to reach the foregoing invention purpose, the technological scheme that the utility model provides is as follows:
Cylinder cap outlet pipe on a kind of marine diesel engine, its characteristics are, this cylinder cap outlet pipe includes along the outfall sewer and the metal bellows of water inlet direction setting and is connected in first arm and second arm on the outfall sewer, described outfall sewer is connected by flange with metal bellows, on the sidewall of described outfall sewer, stretch out the arm that has flange, this arm is connected to first arm by the flange of its end, and described outfall sewer sidewall is welded with second arm.
In the utility model, the front end of arm is provided with the throttling plug screw on described outfall sewer.
In the utility model, described throttling plug screw is positioned on the outfall sewer in first arm and the second arm neutral position.
Based on technique scheme, cylinder cap outlet pipe of the present utility model compared with prior art has following technological merit:
Cylinder cap outlet pipe of the present utility model by the marine diesel engine of the 5S60MC-73#, the 5S60MC-67# that assemble in the workshop, 6S50MCC-108# model is tested, observation, record.The cylinder cap outlet pipe function of the transformation of the way is normal, can be normally prefabricated, and the fault tolerant height, solved on the platform position get angry, problem such as bellows misaligns, break, pipe break, improve the reliability of work simultaneously, the prepackage of cylinder cap outlet pipe can be realized, shortened the manufacture cycle of diesel engine.
Description of drawings
Fig. 1 is the structural representation of marine diesel engine upper cylinder cover outlet pipe in the prior art.
Fig. 2 is the structural representation of marine diesel engine upper cylinder cover outlet pipe of the present utility model.
Fig. 3 is the throttling plug screw enlarged diagram of marine diesel engine upper cylinder cover outlet pipe of the present utility model.
Fig. 4 is that patent is proved part metals bellows deviation situation one dimension constraint schematic representation.
Fig. 5 is that patent is proved part metals bellows deviation situation two dimension constraint schematic representation.
Embodiment
Below we come the structure and the behaviour in service of marine diesel engine upper cylinder cover outlet pipe of the present utility model are described in detail with concrete example in conjunction with the accompanying drawings, but can not limit protection domain of the present utility model with this.
Please see Figure 2, Fig. 2 is the structural representation of marine diesel engine upper cylinder cover outlet pipe of the present utility model.As seen from the figure, cylinder cap outlet pipe on the marine diesel engine of the present utility model structurally includes along the outfall sewer 1 and the metal bellows 2 of water inlet direction setting and is connected in first arm 3 and second arm 4 on the outfall sewer 1, described outfall sewer 1 and metal bellows 2 are connected by flange, on the sidewall of described outfall sewer 1, stretch out the arm that has flange, this arm is connected to first arm 3 by the flange of its end, and described outfall sewer 1 sidewall is welded with second arm 4.
In the utility model design, the front end of arm is provided with throttling plug screw 5 on described outfall sewer 4.
In the utility model design, described throttling plug screw 5 is positioned on the outfall sewer 1 in first arm 3 and second arm, 4 neutral positions.
The utility model design is simplified the pipe of original cylinder cap outlet pipe on the basis that guarantees the realization original function, and two cylinder cap outlet pipes are reduced to one, and the deviation that the minimizing composite tube causes, cancellation be pipe.Owing to cancelled the restricting orifice between original two outlet pipes, now changed into and adopt adjustable throttling plug screw, as Fig. 3.Its position is played the effect of throttling equally between two arms.
The bellows of lengthening design has been adopted in the utility model design, and original corrugated flexible hose is changed to the better metal bellows of fatigue strength.Owing to adopt the flexible pipe design, can greatly absorb because bellows misaligns, and the distortional stress that vibration causes in the diesel engine work.Allow pipe to have certain deviation simultaneously, improved the reliability of prepackage.
The 6S50MC-C type of marine diesel engine is after the structural type change of cylinder cap outlet pipe, make the cylinder cap outlet pipe have stronger compensation ability, can remedy because the too short stress that causes of cylinder cap outlet pipe is concentrated, be difficult for problems such as installation, the functional reliability and the working life of having improved arm on the cylinder cap outlet pipe.
By the experiment of metal bellows, can draw the minimum bending radius of metal bellows, when promptly keeping identical pressure with the straight line shape pipe arrangement, the minimum bending radius that metal bellows can allow.
Below, we, discuss to the reliability of metal bellows by two kinds of situations guaranteeing that the minimum elbow radius under the quiescent conditions is on the basis of 120mm.
Situation one: the size of supposing the cylinder cap outlet pipe does not have deviation, the problem that does not exist metal bellows to misalign.
Metal bellows is of a size of 551mm on the y direction, at z to being of a size of 202mm.Supposition metal bellows bending radius is 120mm earlier, and by the UG simulation, the length that UG measures metal bellows is 701.5mm.Suppose that again bending radius is 130mm, the length that draws metal bellows by same method is 697.2mm.Learn that thus when the wavy metal length of tube was 700mm, minimum elbow radius between the 130mm, met the designing requirement of marine diesel engine between 120mm.Relative dimensions constraint schematic representation is referring to Fig. 4.
Situation two: the supposition metal bellows have the centering problem, promptly have x to deviation.
Suppose that static lower deviation can not influence the bellows length overall, deviate is w, and deviation directly influence is of a size of the straight section part.We discuss the reliability of metal bellows to the influence of elbow radius by deviation.Construct equilateral right-angled triangle by a dotted line, hypotenuse is of a size of 1.414w, and then the size of straight section part has increased 0.414w, therefore can cause the variation of elbow radius.Relative dimensions constraint schematic representation is referring to Fig. 5.
By the method for first kind of situation of situation, get different w values and elbow radius value, we can draw table 1 data.Can be drawn by following table, the wavy metal length of tube is 700mm, and during w=5, elbow radius is near 130mm, and during w=10, elbow radius is near 135mm, during w=15, near 140mm.Hence one can see that, and deviation w is big more, and the elbow radius of metal bellows is big more, all greater than minimum elbow radius 120mm, meets design requirement.
| Deviation w | 5 | 5 | 10 | 10 | 15 | 15 |
| Elbow radius | 120 | 130 | 120 | 135 | 130 | 140 |
| Length overall | 703.6 | 699.3 | 705.6 | 699.2 | 703.4 | 699.1 |
By the analysis of above two kinds of situations, draw and adopt new metal bellows, can solve because the centering problem of bellows.
Because in the utility model design piping is simplified, corresponding mobile has been done in the restricting orifice position, in view of the spatial position of piping, changes restricting orifice into shown in Fig. 3 throttling plug screw, and makes it have adjustable characteristics.We prove the throttling action of throttling plug screw by the calculating to circulation area.In test, the circulation area of supposing restricting orifice is S1=452.16mm
2, the circulation area of throttling plug screw is S2=447.23mm
2, S2 is slightly less than S1, and about equally, and the throttling plug screw has adjustable feature, therefore can reach original throttling action.
Above doctrine that everything has two aspects card has proved absolutely, this practical cylinder cap outlet pipe architecture advances design can be satisfied function of use, and improved the reliability of work greatly, the prepackage of cylinder cap outlet pipe can be realized, solved on the platform position get angry, problem such as bellows misaligns, break, pipe break, shortened manufacture cycle of diesel engine.
Claims (3)
1. the cylinder cap outlet pipe on the marine diesel engine, it is characterized in that, this cylinder cap outlet pipe includes outfall sewer (1) and the metal bellows (2) that is provided with along the water inlet direction and is connected in first arm (3) and second arm (4) on the outfall sewer (1), described outfall sewer (1) is connected by flange with metal bellows (2), on the sidewall of described outfall sewer (1), stretch out the arm that has flange, this arm is connected to first arm (3) by the flange of its end, and described outfall sewer (1) sidewall is welded with second arm (4).
2. the cylinder cap outlet pipe on a kind of marine diesel engine according to claim 1 is characterized in that, the front end of going up arm at described outfall sewer (1) is provided with throttling plug screw (5).
3. the cylinder cap outlet pipe on a kind of marine diesel engine according to claim 2 is characterized in that, described throttling plug screw (5) is positioned on the outfall sewer (5) in first arm (3) and second arm (4) neutral position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200276992U CN201972802U (en) | 2011-01-27 | 2011-01-27 | Cylinder cover water outlet pipe on marine diesel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200276992U CN201972802U (en) | 2011-01-27 | 2011-01-27 | Cylinder cover water outlet pipe on marine diesel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201972802U true CN201972802U (en) | 2011-09-14 |
Family
ID=44577909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200276992U Expired - Lifetime CN201972802U (en) | 2011-01-27 | 2011-01-27 | Cylinder cover water outlet pipe on marine diesel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201972802U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454127A (en) * | 2014-11-10 | 2015-03-25 | 上海中船三井造船柴油机有限公司 | Cold corrosion preventing bypass type cooling water system pipeline for cylinder sleeve of diesel engine |
| CN110529280A (en) * | 2019-07-31 | 2019-12-03 | 上海中船三井造船柴油机有限公司 | The ventilative pipeline structure of diesel engine cylinder lid for ship/jacket-cooling water |
-
2011
- 2011-01-27 CN CN2011200276992U patent/CN201972802U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454127A (en) * | 2014-11-10 | 2015-03-25 | 上海中船三井造船柴油机有限公司 | Cold corrosion preventing bypass type cooling water system pipeline for cylinder sleeve of diesel engine |
| CN110529280A (en) * | 2019-07-31 | 2019-12-03 | 上海中船三井造船柴油机有限公司 | The ventilative pipeline structure of diesel engine cylinder lid for ship/jacket-cooling water |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201972802U (en) | Cylinder cover water outlet pipe on marine diesel | |
| CN206369028U (en) | Stainless steel automobile exhaust pipe flange | |
| CN203477722U (en) | Shock absorption and noise elimination device on fluid transportation pipeline | |
| CN202647044U (en) | Flexible high-pressure pipe connecting device | |
| CN202852294U (en) | Temperature-pressure integration pipeline integration device | |
| CN202659324U (en) | Corrugated pipe for exhaust system | |
| CN202561295U (en) | Thin-wall stainless steel corrugated pipe | |
| CN206875021U (en) | A kind of loop-type bellows | |
| CN204692883U (en) | A kind of corrugated expansion joint | |
| CN203585608U (en) | Wound type corrugated metal hose | |
| CN205781650U (en) | A kind of thermal expansion of pipeline compensation device | |
| CN202811029U (en) | Flexible connection of exhaust pipe of automobile | |
| CN110985801A (en) | High-low temperature pipeline compensator assembly | |
| CN206055051U (en) | A kind of composite plane hinge straight pipe pressure-balancing type expansion joint of staged arm-tie | |
| CN203628082U (en) | Brake pipe for wagon | |
| CN203847889U (en) | Anti-fatigue pump inlet and outlet damping expansion joint | |
| CN204756233U (en) | Three hinge expansion joints in two ripples | |
| CN210770949U (en) | Large-diameter hinge type metal corrugated expansion joint | |
| CN210196156U (en) | Hydraulic tank oil-out and switch connection structure | |
| CN215138083U (en) | High-temperature-resistant corrosion-resistant dynamic wave washer inlet device | |
| CN203296927U (en) | Four-degree-of-freedom support device | |
| CN103438319A (en) | Axial internal-pressure-type corrugated compensator | |
| CN202674371U (en) | Novel all-welded ball valve | |
| CN221922485U (en) | Negative pressure resistant shock absorber for pipeline | |
| CN204692881U (en) | Expansion joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110914 |
|
| CX01 | Expiry of patent term |