CN210269178U - Marine low-speed diesel engine lubricating oil test system - Google Patents
Marine low-speed diesel engine lubricating oil test system Download PDFInfo
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- CN210269178U CN210269178U CN201921435993.XU CN201921435993U CN210269178U CN 210269178 U CN210269178 U CN 210269178U CN 201921435993 U CN201921435993 U CN 201921435993U CN 210269178 U CN210269178 U CN 210269178U
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Abstract
The utility model discloses a marine low-speed diesel engine lubricating oil test system, the lubricating oil unloading and conveying system comprises an oil unloading and oil transporting line, the oil unloading and oil transporting line is provided with an oil unloading and conveying pump, the oil unloading and oil transporting line is communicated with the inlet of a lubricating oil storage cabinet, the outlet of the lubricating oil storage cabinet is connected to the oil unloading and oil transporting line through a first oil transporting line, and the oil unloading and oil transporting line is also communicated with the first inlet of a lubricating oil circulating cabinet through a second oil transporting line; the lubricating oil purifying system comprises a lubricating oil separating machine, the lubricating oil separating machine is communicated with a second inlet of the lubricating oil circulating cabinet through an oil purifying and conveying line, a first outlet of the lubricating oil circulating cabinet is communicated with the lubricating oil separating machine through a third oil conveying line, and the third oil conveying line is communicated with a lubricating oil storage tank through a security line; the lubricating oil supply system comprises an oil supply and delivery line communicated with a second outlet of the lubricating oil circulation cabinet, the oil supply and delivery line is provided with a temperature control valve, the oil supply and delivery line exchanges heat with the heat exchanger for cooling, and the oil supply and delivery line is communicated with the diesel engine.
Description
Technical Field
The disclosure belongs to the technical field of lubricating oil systems, and particularly relates to a lubricating oil test system of a marine low-speed diesel engine.
Background
The low-speed high-power two-stroke diesel engine is the leading product of the low-speed diesel engine of the ship and is used as a main engine of a large ship. The progress of the two-stroke low-speed machine from a common machine type to a modern machine type mainly reflects the improvement of power and the reduction of unit oil consumption, can burn inferior fuel oil and simultaneously meets the requirement of international ocean environmental protection. The power is greatly improved, the requirement for building large and huge ships is greatly met, the unit oil consumption is reduced, the pursuit and the desire of people for environmental protection are met, and the requirement of an environment-friendly engine is met.
The bench test system for the marine low-speed diesel engine is a key support system for ensuring product qualification verification and production and manufacturing of a host factory. The marine low-speed diesel engine needs to be subjected to bench test before leaving a factory, and corresponding performance indexes need to meet design requirements and are approved by classification society and shipowners. The bench test stage is a series of performance tests before the low-speed diesel engine leaves a factory, and comprises a series of verification tests of basic functions, oil consumption, lubrication, cooling, emission, power output characteristics and the like of the diesel engine.
The lubricating oil system is used for lubricating and cooling all moving parts of the main machine under certain pressure and temperature. The purpose is to prevent dry friction between two contact members by liquid friction, thereby reducing the consumption of friction work, reducing the abrasion, and taking away harmful substances such as metal chips and carbon slag generated by friction in the machine members. Corresponding impurities can be generated in the existing lubricating oil system, and further equipment in the whole system can be damaged; meanwhile, the conventional lubricating oil system is not provided with a corresponding safety protection circuit, so that the lubricating oil cannot be transferred in time in case of fire or emergency, and the damage is great.
SUMMERY OF THE UTILITY MODEL
The purpose of the present disclosure is to overcome the above-mentioned deficiencies of the prior art, and to provide a system for testing the lubricating oil of a marine low-speed diesel engine; the system has the functions of unloading and conveying lubricating oil, purifying oil, supplying oil and the like, meets the requirements of the diesel engine on the temperature, the pressure, the precision and the like of the lubricating oil, is provided with a security pipeline, and can convey the oil of the lubricating oil circulating cabinet in time to keep away from a dangerous area.
The purpose of the present disclosure is to provide a marine low-speed diesel engine lubricating oil test system, in order to achieve the above purpose, the present disclosure adopts the following technical scheme:
a lubricating oil test system of a marine low-speed diesel engine comprises a lubricating oil unloading and conveying system, a lubricating oil purifying system and a lubricating oil supplying system,
the lubricating oil unloading and conveying system comprises an oil unloading and conveying line, the oil unloading and conveying line is provided with an oil unloading and conveying pump, the oil unloading and conveying line is communicated with an inlet of a lubricating oil storage cabinet, an outlet of the lubricating oil storage cabinet is connected to the oil unloading and conveying line through a first oil conveying line, and the oil unloading and conveying line is also communicated with a first inlet of a lubricating oil circulation cabinet through a second oil conveying line;
the lubricating oil purifying system comprises a lubricating oil separating machine, the lubricating oil separating machine is communicated with a second inlet of the lubricating oil circulating cabinet through an oil purifying and conveying line, a first outlet of the lubricating oil circulating cabinet is communicated with the lubricating oil separating machine through a third oil conveying line, and the third oil conveying line is communicated with a lubricating oil storage tank through a security line;
the lubricating oil supply system comprises an oil supply and delivery line communicated with a second outlet of the lubricating oil circulation cabinet, the oil supply and delivery line is provided with a temperature control valve, the oil supply and delivery line exchanges heat with the heat exchanger for cooling, and the oil supply and delivery line is communicated with the diesel engine.
As a further technical scheme, a coarse filter is arranged on the oil unloading and conveying line corresponding to the inlet side of the oil unloading and conveying pump.
As a further technical solution, the first oil delivery line is connected to the inlet side of the oil discharge oil delivery line corresponding to the oil discharge transfer pump.
As a further technical scheme, valves are arranged on the oil unloading and conveying line, the first oil conveying line, the second oil conveying line, the clean oil conveying line and the oil supplying and conveying line.
As a further technical scheme, an independent oil supply pump is arranged on the third oil delivery line, a heater is further arranged on the third oil delivery line, one end of the heater is communicated with a steam source, and the other end of the heater is communicated with a condensed water storage tank.
As a further technical scheme, a parallel line is arranged at the position, corresponding to the heater, of the third oil delivery line, a valve is arranged on the parallel line, and a three-way valve is arranged at the connecting position of the parallel line and the third oil delivery line.
As a further technical scheme, the oil supply and delivery line is provided with an automatic backwashing filter and a magnetic filter which are arranged in parallel.
As a further technical scheme, the magnetic filter is also communicated with a third inlet of the lubricating oil circulation cabinet through a fourth oil delivery line, and the fourth oil delivery line is provided with a valve.
As a further technical scheme, the fourth oil delivery line is also communicated with an automatic backwashing filter, and the automatic backwashing filter is also communicated with a compressed air source.
As a further technical scheme, the oil supply and delivery line is provided with a circulating pump.
The beneficial effect of this disclosure does:
this disclosed lubricating oil test system, its lubricating oil feeding system pass through the control temperature output that electric temperature control valve can be more accurate, and oil feeding system configuration magnetic filter can get rid of the iron fillings in the system when the cluster oil, accomplishes to prevent to suffer from in the bud.
According to the lubricating oil test system, the safety protection circuit is added behind the independent oil supply pump of the lubricating oil purifying system, and oil in the lubricating oil circulating cabinet is transferred in time through the safety protection circuit when a fire disaster or an emergency occurs.
According to the lubricating oil test system, the lubricating oil unloading module and the conveying module share the oil unloading pump and the conveying pump by changing pipelines, and cost output is reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic view of a lube oil unloading delivery system;
FIG. 2 is a schematic diagram of a lubricating oil purification system;
FIG. 3 is a schematic view of a lubricant supply system;
in the figure, 1, a tank truck, 2, an oil outlet, 3, an oil unloading and conveying line, 4 coarse filters, 5 oil unloading and conveying pumps, 6, a lubricating oil storage cabinet, 7, a first oil conveying line, 8, a second oil conveying line, 9, a lubricating oil circulation cabinet, 10, a lubricating oil separating machine, 11, a working water inlet, 12, an oil residue outlet, 13, a clean oil conveying line, 14, a third oil conveying line, 15 safety lines, 16 independent oil supply pumps, 17 heaters, 18 steam inlets, 19 condensate outlets, 20 parallel lines, 21 control air inlets, 22 three-way valves, 23 oil supplying and conveying lines, 24 circulating pumps, 25 temperature control valves, 26 heat exchangers, 27 automatic backwashing filters, 28 magnetic filters, 29, a fourth oil conveying line, 30 compressed air inlets and 31 diesel engines.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
for convenience of description, the words "up", "down", "left" and "right" in this disclosure, if any, merely indicate correspondence with up, down, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate description of the disclosure and simplify description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the disclosure.
The noun explains:
a lubricating oil storage cabinet: for storing lubricating oil.
The lubricating oil circulation cabinet: the lubricating oil circulation device is used for completing the full circulation of the lubricating oil between the main machines so as to precipitate impurities and dissipate heat; in addition, the circulation of the oil separating machine oil purifying system is completed.
An oil separating machine: a centrifugal precipitation apparatus for separating contaminant particles from moisture in lubricating oil.
Automatic back flush filter of lubricating oil with secondary filtration: impurities in the medium are filtered, the filter screen precision is utilized to meet the requirement of medium cleanliness, and the backwashing oil is subjected to secondary filtration.
As described in the background, the existing lubricating oil system generates corresponding impurities, which in turn may damage the equipment in the whole system; meanwhile, the current lubricating oil system is not provided with a corresponding safety protection circuit, lubricating oil cannot be transferred in time when a fire disaster or an emergency occurs, and the produced damage is large.
The application provides a lubricating oil test system of a marine low-speed diesel engine, which comprises a lubricating oil unloading and conveying system, a lubricating oil purifying system and a lubricating oil supplying system,
the lubricating oil unloading and conveying system comprises an oil unloading and conveying line, the oil unloading and conveying line is provided with an oil unloading and conveying pump, the oil unloading and conveying line is communicated with an inlet of a lubricating oil storage cabinet, an outlet of the lubricating oil storage cabinet is connected to the oil unloading and conveying line through a first oil conveying line, and the oil unloading and conveying line is also communicated with a first inlet of a lubricating oil circulation cabinet through a second oil conveying line;
the lubricating oil purifying system comprises a lubricating oil separating machine, the lubricating oil separating machine is communicated with a second inlet of the lubricating oil circulating cabinet through an oil purifying and conveying line, a first outlet of the lubricating oil circulating cabinet is communicated with the lubricating oil separating machine through a third oil conveying line, and the third oil conveying line is communicated with a lubricating oil storage tank through a security line;
the lubricating oil supply system comprises an oil supply and delivery line communicated with a second outlet of the lubricating oil circulation cabinet, the oil supply and delivery line is provided with a temperature control valve, the oil supply and delivery line exchanges heat with the heat exchanger for cooling, and the oil supply and delivery line is communicated with the diesel engine.
Example 1
The lubricating oil test system disclosed in the present embodiment will be further described with reference to fig. 1 to 3;
the lubricating oil test system for the marine low-speed diesel engine 31 comprises a lubricating oil unloading and conveying system, a lubricating oil purifying system and a lubricating oil supplying system;
as shown in fig. 1, the lubricating oil unloading and conveying system comprises an oil unloading and conveying line 3, wherein the oil unloading and conveying line 3 is communicated with an oil unloading port 2 of an oil tank truck 1, the oil unloading and conveying line 3 is provided with an oil unloading conveying pump 5, the oil unloading and conveying line 3 is communicated with an inlet of a lubricating oil storage cabinet 6, and the oil unloading and conveying line 3 is provided with a valve;
an outlet of the lubricating oil storage cabinet 6 is connected to the front end of an oil unloading and conveying pump 5 of the oil unloading and conveying line 3 through a first oil conveying line 7, namely the first oil conveying line 7 is connected to the inlet side, corresponding to the oil unloading and conveying pump 5, of the oil unloading and conveying line 3, and the oil unloading pump and the conveying pump are combined into one pump through the arrangement of the first oil conveying line 7, so that the cost of the pump is reduced; the first oil delivery line 7 is provided with a valve.
The oil unloading and conveying line 3 is also communicated with a first inlet of a lubricating oil circulation cabinet 9 through a second oil conveying line 8, and the second oil conveying line 8 is provided with a valve.
The oil discharge and delivery line 3 is provided with a strainer 4 corresponding to the inlet side of the front end of the oil discharge delivery pump 5 to strainer the lubricating oil.
After impurities of lubricating oil in the oil tank truck 1 are filtered by a coarse filter 4, the lubricating oil is injected into a lubricating oil storage cabinet 6 through an oil discharge delivery pump 5, and the coarse filter 4 is used for protecting the oil discharge delivery pump 5; the oil in the lubricating oil storage cabinet 6 is conveyed to a lubricating oil circulating cabinet 9 through an oil unloading conveying pump 5; the system realizes the sharing of oil discharge and a transfer pump by adding pipelines so as to save cost. The lubricating oil storage tank 6 and the lubricating oil circulation tank 9 are provided with an on-site liquid level meter and a high-low liquid level sensor for completing security and automatic injection.
One set of system of the existing marine diesel engine lubricating oil system corresponds to one diesel engine, and the lubricating oil system of the present disclosure sets the oil discharge delivery pump 5 as a variable frequency pump (outputting different flow rates according to the type of the diesel engine) and can correspond to diesel engines with different powers.
As shown in fig. 2, the lubricating oil purifying system includes a lubricating oil separating machine 10, the lubricating oil separating machine 10 is communicated with the second inlet of the lubricating oil circulation cabinet 9 through an oil purifying and conveying line 13, and the oil purifying and conveying line 13 is provided with a valve; the lubricating oil separating machine 10 is provided with a working water inlet 11 and an oil residue outlet 12.
A first outlet of the lubricating oil circulating cabinet 9 is communicated with a lubricating oil separating machine 10 through a third oil conveying line 14, and the third oil conveying line 14 is communicated with a lubricating oil storage tank through a security line 15; after a security circuit is added, oil in the lubricating oil circulation cabinet is transferred in time through the security circuit when a fire or an emergency occurs.
The third oil delivery line 14 is provided with an independent oil supply pump 16, the third oil delivery line 14 is further provided with a heater 17, one end of the heater 17 is communicated with a steam source through a steam inlet 18, and the other end of the heater 17 is communicated with a condensed water storage tank through a condensed water outlet 19.
The third oil transportation line 14 is provided with a parallel line 20 corresponding to the heater 17, the parallel line 20 is provided with a valve, a three-way valve 22 is arranged at the joint of the parallel line 20 and the third oil transportation line 14, and the three-way valve 22 is communicated with a compressed air source through a control air inlet 21. The compressed air source is used for controlling the three-way valve and determining which direction is communicated, when the lubricating oil separating machine 10 works normally, the lubricating oil is heated by the heater 17 and then transmitted to the lubricating oil separating machine 10, when the lubricating oil separating machine 10 discharges slag, the lubricating oil separating machine 10 does not work, and the lubricating oil which flows through the heater 17 flows back to the outlet end of the independent oil supply pump 16 through the three-way valve 22 and the parallel line 20.
The lubricating oil in the lubricating oil circulation cabinet 9 passes through the independent oil supply pump 16 and the heater 17 to be heated to the optimal separation temperature of the lubricating oil separating machine 10, and is conveyed to the lubricating oil separating machine 10 to separate moisture and impurities in the lubricating oil, and finally returns to the circulation process of the lubricating oil circulation cabinet 9.
As shown in fig. 3, the oil supply system includes an oil supply and delivery line 23 communicated with the second outlet of the oil circulation cabinet 9, the oil supply and delivery line 23 is provided with a circulation pump 24, and the oil supply and delivery line 23 is provided with valves. The oil supply and delivery line 23 is provided with a temperature control valve 25, the oil supply and delivery line 23 and the heat exchanger 26 exchange heat and cool, and the oil supply and delivery line 23 is communicated with the diesel engine 31. The heat exchanger 26 has two channels, one is a lubricant channel, and the other is a cooling water channel, and when the lubricant flows through the heat exchanger 26, the lubricant is cooled by the fresh water in the cooling water channel, so that the lubricant reaches the lubricant temperature required by the host.
The oil supply and delivery line 23 is provided with an automatic backwashing filter 27 and a magnetic filter 28 which are arranged in parallel. The magnetic filter 28 is also connected to the third inlet of the oil circulation tank 9 via a fourth oil line 29, the fourth oil line 29 being provided with a valve, the fourth oil line 29 also being connected to the automatic backwash filter 27.
The magnetic filter 28 and the automatic backwashing filter 27 are used in parallel, and the magnetic filter 28 and the automatic backwashing filter 27 are both in the prior art and will not be described in detail herein.
The magnetic filter 28 is used when oil is mixed, because scrap iron possibly exists in the pipeline when the new machine is used, the scrap iron in the medium can be effectively removed through the serial washing of the magnetic filter, and the major accident caused by equipment damage is prevented.
The automatic backwashing filter 27 is used in a formal test and is used for removing impurities in a medium, ensuring that the cleanliness of oil entering the diesel engine 31 meets requirements and ensuring that equipment normally operates.
The automatic backwashing filter 27 is also communicated with a compressed air source through a compressed air inlet 30, when the automatic backwashing filter 27 runs, a filter screen can be adhered with a plurality of impurities to influence the filtering effect, so a certain time interval is set, the filter sheet is cleaned by using compressed air to ensure that the automatic backwashing filter 27 runs normally, and in addition, the filter is provided with a pressure difference switch for monitoring the cleaning condition of the filter sheet.
The lubricating oil in the lubricating oil circulation cabinet 9 is sent to a heat exchanger 26 through a circulation pump 24, then the temperature required by the lubricating oil of the main engine is adjusted through an automatic temperature control valve 25, impurities in the lubricating oil are filtered through an automatic backwashing filter 27, and finally the lubricating oil is conveyed to a diesel engine 31 for use.
The working principle of the lubricating oil test system is as follows:
the diesel engine has certain requirements on the pressure, flow, temperature and cleanliness of lubricating oil, the lubricating oil meets the requirements on the flow and pressure required by the diesel engine through a lubricating oil circulating pump, the temperature requirement of the diesel engine is ensured through a heater and a temperature regulating valve, and finally the cleanliness requirement of the lubricating oil is ensured through an automatic backwashing filter.
Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A lubricating oil test system of a marine low-speed diesel engine is characterized by comprising a lubricating oil unloading and conveying system, a lubricating oil purifying system and a lubricating oil supplying system,
the lubricating oil unloading and conveying system comprises an oil unloading and conveying line, the oil unloading and conveying line is provided with an oil unloading and conveying pump, the oil unloading and conveying line is communicated with an inlet of a lubricating oil storage cabinet, an outlet of the lubricating oil storage cabinet is connected to the oil unloading and conveying line through a first oil conveying line, and the oil unloading and conveying line is also communicated with a first inlet of a lubricating oil circulation cabinet through a second oil conveying line;
the lubricating oil purifying system comprises a lubricating oil separating machine, the lubricating oil separating machine is communicated with a second inlet of the lubricating oil circulating cabinet through an oil purifying and conveying line, a first outlet of the lubricating oil circulating cabinet is communicated with the lubricating oil separating machine through a third oil conveying line, and the third oil conveying line is communicated with a lubricating oil storage tank through a security line;
the lubricating oil supply system comprises an oil supply and delivery line communicated with a second outlet of the lubricating oil circulation cabinet, the oil supply and delivery line is provided with a temperature control valve, the oil supply and delivery line exchanges heat with the heat exchanger for cooling, and the oil supply and delivery line is communicated with the diesel engine.
2. The marine low speed diesel engine oil test system of claim 1, wherein said oil discharge and delivery line is provided with a strainer corresponding to an inlet side of the oil discharge delivery pump.
3. The marine low speed diesel engine oil test system of claim 1, wherein said first oil delivery line is connected to an oil discharge delivery line corresponding to an inlet side of an oil discharge transfer pump.
4. The marine low-speed diesel engine oil test system of claim 1, wherein the third oil delivery line is provided with an independent oil supply pump, and the third oil delivery line is further provided with a heater, one end of the heater is communicated with the steam source, and the other end of the heater is communicated with the condensed water storage tank.
5. The marine low-speed diesel engine oil test system of claim 4, wherein the third oil delivery line is provided with a parallel line corresponding to the heater, the parallel line is provided with a valve, and a three-way valve is arranged at the connection of the parallel line and the third oil delivery line.
6. The marine low-speed diesel engine lubricating oil test system of claim 1, wherein the oil supply and delivery line is provided with an automatic backwashing filter and a magnetic filter which are arranged in parallel.
7. The marine low speed diesel engine oil test system of claim 6, wherein said magnetic filter is further in communication with a third inlet of the oil circulation tank via a fourth oil delivery line, the fourth oil delivery line being valved.
8. The marine low speed diesel engine oil test system of claim 7, wherein said fourth oil delivery line is further in communication with an automatic backwash filter, the automatic backwash filter further in communication with a source of compressed air.
9. The marine low speed diesel engine oil test system of claim 1, wherein said oil supply and delivery line is provided with a circulation pump.
10. The marine low-speed diesel engine lubricating oil test system of claim 1, wherein the oil unloading and delivery line, the first oil delivery line, the second oil delivery line, the net oil delivery line and the oil supply and delivery line are provided with valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921435993.XU CN210269178U (en) | 2019-08-30 | 2019-08-30 | Marine low-speed diesel engine lubricating oil test system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921435993.XU CN210269178U (en) | 2019-08-30 | 2019-08-30 | Marine low-speed diesel engine lubricating oil test system |
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| CN210269178U true CN210269178U (en) | 2020-04-07 |
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| CN201921435993.XU Active CN210269178U (en) | 2019-08-30 | 2019-08-30 | Marine low-speed diesel engine lubricating oil test system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487555A (en) * | 2019-08-30 | 2019-11-22 | 中国船舶重工集团柴油机有限公司 | A kind of marine low speed diesel engine lubricating oil pilot system |
-
2019
- 2019-08-30 CN CN201921435993.XU patent/CN210269178U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487555A (en) * | 2019-08-30 | 2019-11-22 | 中国船舶重工集团柴油机有限公司 | A kind of marine low speed diesel engine lubricating oil pilot system |
| CN110487555B (en) * | 2019-08-30 | 2024-01-26 | 中船发动机有限公司 | Lubricating oil test system of marine low-speed diesel engine |
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Address after: 266520 No. 501 Lijiang East Road, Huangdao District, Qingdao, Shandong Patentee after: China Shipbuilding Industry Corporation Diesel ENGINE Co.,Ltd. Address before: 266520 No. 501 Lijiang East Road, Huangdao District, Qingdao, Shandong Patentee before: CHINA SHIPBUILDING INDUSTRY CORPORATION DIESEL ENGINE Co.,Ltd. |