CN111664905A - Diesel engine oil consumption measuring device, measuring method and application - Google Patents

Abstract

In order to solve the problem of inaccurate measurement results caused by the large liquid surface area and vibration of the liquid surface of the diesel engine oil consumption measurement device in the prior art, the present invention provides a diesel engine oil consumption measurement device, a measurement method and an application, It includes a container, a magnetostrictive liquid level gauge sensor, an oil discharge pipeline arranged at the bottom of the container, and a continuously running oil pressure pump pipeline and an oil return pump pipeline; the top of the container is provided with a filling hole; the oil pressure pump pipe The input end of the circuit is connected to the diesel engine and its output end is connected to the top of the container; the input end of the oil return pump pipeline is connected to the container and its output end is connected to the diesel engine; wherein, the magnetostrictive liquid level sensor is arranged at the top of the container for The oil level in the container is measured; wherein the cross section of the upper part of the container is smaller than the cross section of the bottom part. The invention has the advantages of short measurement time and accurate measurement results.

Description

A diesel engine oil consumption measuring device, measuring method and application

technical field

The invention relates to the technical field of diesel engine auxiliary devices, in particular to a diesel engine oil consumption measuring device, measuring method and application.

Background technique

Oil consumption measurement is an important measurement index in engine performance testing. Excessive oil consumption not only wastes resources, but also leads to excessive oil combustion and increased carbon particle emissions. Less oil consumption is an inevitable development trend in the future. However, a set of accurate measurement devices is required to provide certain technical support for reducing oil consumption. The methods for measuring engine oil consumption in the prior art mainly include the following: 1. SO2 tracer method, which has high precision, but expensive equipment; 2. Calibration of the oil pan liquid level, and the oil consumption is obtained from the change of the liquid level, which is a cumbersome method. , the oil pan liquid level needs to be calibrated, which is prone to errors; 3. The radioactive material tracer method has high precision, but the radioactive material decay period is short, and there is no domestic manufacturer. The damage to the human body remains to be investigated, and it cannot be widely used 4. Using the national standard oil-draining method, observe the liquid level change of the oil pan or the oil tank with the naked eye. Due to the less oil consumption, the liquid level change is not obvious. In addition, the liquid level change is observed with the naked eye, and the error is large. In order to improve the design, the variable section is used to make the liquid level change detailed. In order to increase the accuracy of the liquid level measurement, an electromagnetic liquid level gauge is used to measure the liquid level change.

At present, from the published materials, such as the authorized announcement number: CN 103277168A "an engine and its oil consumption detection device and method", in this invention, the oil consumption detection device includes a detection element, a control element and a display element; detection The element detects the oil depth, and transmits the detected depth signal to the control element; the control element receives the above-mentioned depth signal, and calculates the oil consumption according to the detected depth signal and the pre-stored calculation formula, but the diesel engine has a large liquid surface area, The fluid surface vibrates and the cross section of the oil level changes, resulting in inaccurate measurements.

SUMMARY OF THE INVENTION

In order to solve the problem of inaccurate measurement results caused by the large liquid surface area and vibration of the liquid surface of the diesel engine oil consumption measurement device in the prior art, the present invention provides a diesel engine oil consumption measurement device, a measurement method and an application, The above technical problems can be effectively solved.

The device for measuring the oil consumption of a diesel engine is characterized in that it comprises a container, a magnetostrictive liquid level gauge sensor, an oil discharge pipeline arranged at the bottom of the container, and a continuously running oil pressure pump pipeline and an oil return pump pipeline; The top of the container is provided with a filling hole; the input end of the oil pressure pump pipeline is connected to the diesel engine and the output end of the oil return pump pipeline is connected to the top of the container; the input end of the oil return pump pipeline is connected to the container and the output end is connected to the diesel engine; wherein , the magnetostrictive liquid level gauge sensor is arranged at the top of the container to measure the oil level in the container; wherein, the section of the upper part of the container is smaller than the section of the bottom of the container.

The upper part of the container is also provided with an overflow assembly; the overflow assembly includes an overflow pipe, a shut-off valve, a recovered oil container and a waterproof printing electronic platform scale; wherein, the overflow pipe, the shut-off valve, the recovered oil container and the waterproof The printed electronic platform scales are connected end-to-end and arranged on the container in turn.

A method for measuring the multi-functional oil consumption device of a diesel engine as claimed in claim 1, characterized in that it comprises the following steps:

First, add the same mass of oil into the container in stages, and then measure the liquid level change data through the magnetostrictive liquid level sensor; then, calculate the coefficient according to the ratio of the total amount of oil added to the corresponding liquid level change data; finally , after the oil measurement is completed, the oil consumption is obtained by dividing the liquid level data of the magnetostrictive liquid level sensor by the above-mentioned coefficient.

A method for measuring a multifunctional oil consumption device for a diesel engine, characterized in that it comprises the following steps:

First, add a certain amount of oil to the container through the filling hole, and record the liquid level data of the magnetostrictive liquid level gauge sensor as the initial data;

Then, after the diesel engine is stopped and the oil level is stable, weigh a certain amount of oil and add it to the container through the filling hole; repeatedly add the weighed oil to each time, when the data indicated in the magnetostrictive level gauge sensor matches the When the initial data are consistent, add all the added oil masses together to get the oil consumption.

A method for measuring a multifunctional oil consumption device for a diesel engine, characterized in that it comprises the following steps:

First, open the shut-off valve, the oil in the container flows into the recovered oil container through the overflow pipe, and the quality of the oil in the recovered oil container is measured by the waterproof printing electronic scale to obtain the initial data;

Then, close the shut-off valve and pour the oil in the recovered oil container back into the container;

After the diesel engine has been working for a period of time, the shut-off valve is opened again, the oil in the container flows into the recovered oil container through the overflow pipe, and the quality of the oil in the recovered oil container is measured by the waterproof printing electronic platform scale, and the data after operation is obtained;

Finally, the difference between the data after operation and the initial data is obtained to obtain the oil consumption.

Beneficial effects: the present invention adopts the design of variable cross-section, the cross-section of the upper part of the device is small, the liquid level changes obviously, and the measurement range is large, which solves the problems of large liquid surface area and liquid surface vibration of the diesel engine, and at the same time does not require the diesel engine to start up and run for a long time. long to complete the measurement. The invention adopts the magnetostrictive liquid level gauge sensor to measure the change of the liquid level, obtains the coefficient according to the ratio of the total amount of oil added to the corresponding liquid level change data, and finally obtains the fuel consumption, the measurement time is short, and the measurement result is accurate.

Description of drawings

Figure 1 is a schematic structural diagram of the present invention.

In the picture: 1. Magnetostrictive liquid level gauge sensor; 2. Oil filling hole; 3. Overflow pipe; 4. Globe valve; 5. Oil recovery container; 6. Waterproof printing electronic platform scale; 7. Oil drain valve pipeline; 8. Liquid level gauge; 9. Oil return pump pipeline; 10. Oil pressure pump pipeline; 11. Diesel engine; 12. Container.

Wherein, the dotted line in the container 12 in FIG. 1 is the oil.

Detailed ways

The present invention will be described in further detail below with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are intended to illustrate the invention, but not to limit the scope of the invention.

As shown in FIG. 1, a diesel engine oil consumption measuring device includes a container 12, a magnetostrictive liquid level gauge sensor 1, a continuously running oil pressure pump pipeline 10, and an oil return pump pipeline 9; the top of the container 12 is A filling hole 2 is provided; the input end of the oil pressure pump pipeline 10 is connected to the diesel engine 11 and its output end is connected to the top of the container 12; the input end of the oil return pump pipeline 9 is connected to the container 12 and its output end is connected to the diesel engine 11; Wherein, the magnetostrictive liquid level sensor 1 is arranged at the top of the container 12 to measure the oil level in the container 12; wherein, the section of the upper part of the container 12 is smaller than that of the bottom part.

The oil pressure pump in the oil pressure pump pipeline 10 extracts the oil from the oil pan of the diesel engine 11 and flows into the container 12 . In order to facilitate the observation of the oil level when adding oil, the liquid level gauge 8 is installed on the side of the container 12 , the oil drain valve pipeline 7 is installed at the bottom of the container 12 to facilitate oil discharge, and an overflow pipe is installed on the upper part of the container 12 3 and the cut-off valve 4, a recovery oil container 5 and a waterproof printing electronic platform scale 6 are arranged at the lower part of the overflow pipe 3 and the cut-off valve 4, so as to facilitate the weighing of the oil flowing out from the container 12; the top of the container 12 is installed with a Magnetostrictive liquid level sensor 1 is convenient to measure the change of oil consumption, and a refueling hole 2 is provided to facilitate adding oil; at the same time, the refueling hole 2 also has the function of a vent; The oil in the container 12 is delivered to the diesel engine 11 to complete the oil cycle.

As we all know, the traditional oil measurement directly measures the change of the oil consumption of the oil pan. Due to the large cross-sectional area of the oil pan and the inconsistent cross-sectional changes, the diesel engine needs to be started for a long time when measuring the oil, which wastes a lot of time. Fuel, lubricating oil, water and electricity and other resources, but also increase the pollution to the environment. At the same time, the traditional method needs to read the number of oil droplets per minute. Due to the high viscosity of the oil, it takes a long time to wait, especially after the diesel engine is stopped, the oil temperature drops and the oil viscosity increases, and the entire measurement process takes a long time.

Even if the technical solutions such as Authorized Bulletin No.: CN 103277168 A "An Engine and its Oil Consumption Detection Device and Method" are adopted, it cannot be applied to the complicated and changeable cross-section of the diesel engine.

In order to illustrate the situation of different diesel engine sections, the following specific embodiments are now provided for description.

Specific embodiment 1: The above-mentioned diesel engine oil consumption measuring device is aimed at the method for measuring the oil consumption under the condition of the liquid level of equal cross-section.

First, add the same mass of oil into the container 12 in stages, and then use the liquid level change data measured by the magnetostrictive liquid level gauge sensor 1;

Then, according to the ratio of the total amount of oil added to the corresponding liquid level change data, the coefficient is obtained;

Finally, after the oil measurement is completed, the oil consumption is obtained by dividing the liquid level data of the magnetostrictive liquid level gauge sensor 1 by the above-mentioned coefficient.

For example: before the measurement, the magnetostrictive level sensor 1 is set to zero, a total of 5 times of oiling are performed, and the average coefficient is 5. After the measurement, the data recorded by the magnetostrictive level sensor 1 is 10, the oil consumption The amount is 10/5=2.

Specific embodiment II: The above-mentioned diesel engine oil consumption measuring device is aimed at the method for measuring the oil consumption under the condition of the liquid level of unequal cross-section.

Before measuring the oil consumption, record the data of the magnetostrictive level sensor 1, after the measurement, add oil to the batch container 12, and record the added oil quality, until the magnetostrictive level sensor 1 records the data. At this time, the sum of the added oil quality is the oil consumption.

For example: before measuring the oil consumption, record the magnetostrictive level gauge sensor 1 as 5, after the measurement, add oil in 6 times, and record the amount of oil added each time until the magnetostrictive level gauge sensor 1 Display data 5, the total amount of oil added is 2, then the oil consumption is 2.

Specific embodiment III: In the actual production process, in order to save costs, the magnetostrictive liquid level sensor 1 may not be provided in the diesel engine oil consumption measuring device. In this case, the measurement method for diesel engine oil consumption measurement is:

First, the shut-off valve 4 is opened, the oil in the container 12 flows into the recovered oil container 5 through the overflow pipe 3, and the quality of the oil in the recovered oil container 5 is measured by the waterproof printing electronic scale 6 to obtain the initial data;

Then, close the shut-off valve 4, and re-pour the oil in the recovered oil container 5 into the container 12;

After the diesel engine 11 works for a period of time, the shut-off valve 4 is opened again, the oil in the container 12 flows into the recovered oil container 5 through the overflow pipe 3, and the quality of the oil in the recovered oil container 5 is measured by the waterproof printing electronic scale 6, and the data after operation is obtained. ;

Finally, the difference between the data after operation and the initial data is obtained to obtain the oil consumption.

For example, before the measurement, the measured oil amount is 5, after the diesel engine 11 has been working for a period of time, the measured oil amount is 3, and the difference between the two is 5-3=2, which is the oil consumption.

To be clear:

The shape of the container 12 in this paper is shown in Figure 1. In order to measure accurately, the sensor 1 of the magnetostrictive liquid level gauge is located in the upper part of the smaller section.

The magnetostrictive liquid level gauge sensor 1 described herein may be an intelligent digital display magnetostrictive liquid level gauge sensor.

The oil pressure pump line 10 and the oil return pump line 9 described herein are used to circulate the oil in the container 12 to the oil in the diesel engine 11 .

The container 12 described herein is ventilated with the outside world through the refueling hole 2, and the other positions are closed.

The description of the directionality involved in this article is based on Figure 1.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical scope disclosed by the present invention can easily change or replace them, all belonging to the scope of the present invention. within the protection scope of the present invention. Therefore, the protection scope of the present invention is described in accordance with the protection scope of the claims.

Claims (9)

1. A diesel engine oil consumption measuring device which characterized in that: the device comprises a container (12), a magnetostrictive liquid level meter sensor (1), a pressure oil pump pipeline (10) and an oil return pump pipeline (9) which operate continuously; the top of the container (12) is provided with an oil filling hole (2); the input end of the pressure oil pump pipeline (10) is connected with the diesel engine (11) and the output end of the pressure oil pump pipeline is connected with the top of the container (12); the input end of the oil return pump pipeline (9) is connected with the container (12) and the output end of the oil return pump pipeline is connected with the diesel engine (11);

wherein the magnetostrictive liquid level meter sensor (1) is arranged at the top end of the container (12) and is used for measuring the height of the engine oil in the container (12);

wherein the cross-section of the upper part of the container (12) is smaller than the cross-section of the bottom part.

2. The diesel engine oil consumption measuring apparatus according to claim 1, wherein: the upper part of the container (12) is also provided with an overflow assembly;

the overflow assembly comprises an overflow pipe (3), a stop valve (4), a recovered engine oil container (5) and a waterproof printing electronic platform scale (6);

the overflow pipe (3), the stop valve (4), the engine oil recovery container (5) and the waterproof printing electronic platform scale (6) are sequentially connected end to end and arranged on the container (12).

3. The diesel engine oil consumption measuring apparatus according to claim 1 or 2, characterized in that: a liquid level meter (8) is arranged on the side surface of the container (12).

4. The diesel engine oil consumption measuring apparatus according to claim 1 or 2, characterized in that: the lower part of the container (12) is provided with an oil drain valve pipeline (7).

5. A measuring method using the multifunctional engine oil consumption device of the diesel engine as set forth in claim 1, characterized in that: the method comprises the following steps:

firstly, adding engine oil with equal mass into a container (12) in a plurality of times, and measuring liquid level change data through a magnetostrictive liquid level meter sensor (1);

then, according to the ratio of the total amount of the added engine oil to the corresponding liquid level change data, calculating a coefficient;

and finally, after the engine oil measurement is finished, the oil consumption is obtained by dividing the liquid level data of the magnetostrictive liquid level meter sensor (1) by the coefficient.

6. The application of the multifunctional engine oil consumption measuring method of the diesel engine according to claim 5 to the liquid level of the equal section of the diesel engine.

7. A measuring method using the multifunctional engine oil consumption device of the diesel engine as set forth in claim 1, characterized in that: the method comprises the following steps:

firstly, adding a certain amount of engine oil into a container (12) through an oil filling hole (2), and recording liquid level data of a magnetostrictive liquid level meter sensor (1) as initial data;

then, after the diesel engine (11) is stopped and the oil level is stable, weighing a certain amount of oil to be added into the container (12) through the oil filling hole (2); and continuously and repeatedly adding weighed engine oil to each time, and adding the mass of all the added engine oil together when the data indicated in the magnetostrictive liquid level meter sensor (1) is consistent with the initial data to obtain the consumption of the engine oil.

8. The application of the multifunctional engine oil consumption measuring method of the diesel engine according to claim 7 to the liquid level of the unequal cross sections of the diesel engine.

9. A measuring method using the multifunctional engine oil consumption device of the diesel engine as set forth in claim 2, characterized in that: the method comprises the following steps:

firstly, opening a stop valve (4), enabling the engine oil in a container (12) to flow into a recovered engine oil container (5) through an overflow pipe (3), and measuring the quality of the engine oil in the recovered engine oil container (5) through a waterproof printing electronic platform scale (6) to obtain initial data;

then, closing the stop valve (4), and pouring the engine oil in the recovered engine oil container (5) into the container (12) again;

after the diesel engine (11) works for a period of time, the stop valve (4) is opened again, the engine oil in the container (12) flows into the recovered engine oil container (5) through the overflow pipe (3), the quality of the engine oil in the recovered engine oil container (5) is measured through the waterproof printing electronic platform scale (6), and data after operation are obtained;

and finally, performing difference on the operated data and the initial data to obtain the engine oil consumption.

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