Diesel engine oil return measuring system

Abstract

The utility model relates to the technical field of detection, in particular to a diesel engine return oil measuring system which comprises a tank body used for storing return oil liquid, a gas conveying module used for outputting gas in the tank body and an oil conveying module used for conveying out return oil in the tank body and measuring the return oil. The gas conveying module and the oil conveying module are both connected with the tank body. Through the arrangement of the tank body for storing the return oil liquid, the gas conveying module for outputting gas in the tank body and the oil conveying module for conveying out the return oil in the tank body and measuring, the air and the oil are separated, and the measuring precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection, and more specifically, to a diesel engine oil return measurement system. Background Art

[0002] The working principle of a diesel engine's fuel supply is that fuel is supplied to the engine through the fuel inlet pipe. The fuel injection pump generates high pressure in the engine body, and finally sprays it into the cylinder through the fuel injectors for combustion. Some fuel is discharged from the fuel injection pump or the fuel injectors, collected in the return line, and then returned to the fuel tank.

[0003] When the diesel engine returns oil, a small amount of gas foam will be precipitated under high temperature and high pressure, and a small amount of high-pressure air will be mixed in.

[0004] When measuring the fuel volume of a diesel engine, a flow meter is installed on the oil inlet pipe and a flow meter is installed on the oil return pipe. The actual fuel consumption of the diesel engine is obtained by subtracting the oil return volume from the oil inlet volume.

[0005] However, foam and air in the return oil will cause the flow meter to run idle or be unable to measure, which will cause the measurement data accuracy of the return oil flow meter to be relatively poor, and the actual fuel consumption of the diesel engine is difficult to measure accurately.

[0006] Currently, in the measurement application of the actual fuel consumption of diesel engines, there is a large error between the measured data and the actual comparison. Utility Model Content

[0007] Based on this, the purpose of the present invention is to overcome the deficiencies of the prior art and provide a diesel engine oil return measurement system.

[0008] The technical solution of the utility model is: a diesel engine oil return measurement system, including a tank body for storing oil return liquid, a gas transmission module for outputting the gas in the tank body, and an oil transmission module for transporting the oil return in the tank body and measuring it, wherein the gas transmission module and the oil transmission module are both connected to the tank body.

[0009] The utility model comprises a tank body for storing return oil liquid, a gas transmission module for outputting the gas in the tank body, and an oil transmission module for transmitting the return oil in the tank body and measuring it, thereby separating air and oil and improving measurement accuracy.

[0010] Preferably, the air delivery module is connected to the upper end of the tank, and the oil delivery module is connected to the lower end of the tank, near the bottom. This arrangement allows air to be delivered from above based on the density of air and oil, preventing excessive air from entering the oil delivery module and minimizing the air content of the oil delivered from the lower end of the oil delivery module, thereby improving the accuracy of oil detection in the oil delivery module.

[0011] Preferably, the gas delivery module includes a gas delivery pipeline and a first valve body for controlling the opening and closing of the gas delivery pipeline, wherein the first valve body is installed in the gas delivery pipeline. The first valve body is provided to control the opening and closing of the gas delivery pipeline or the size of the gas flow.

[0012] Preferably, one end of the gas and oil transfer modules is connected to and communicates with the tank, while the other ends of the gas and oil transfer modules are connected to and communicate with each other. This arrangement allows for accurate detection of the oil in the oil transfer module to prevent air from mixing in, while also making the overall structure simple and compact, improving practicality.

[0013] Preferably, the oil delivery module includes an oil delivery pipeline, a flowmeter, and a second valve body, and the flowmeter and the second valve body are both installed in the oil delivery pipeline. The oil delivery module includes an oil delivery pipeline, a flowmeter, and a second valve body, and the flowmeter and the second valve body are both installed in the oil delivery pipeline. The purpose of the flowmeter and the second valve body is to measure the oil in the oil delivery pipeline. At the same time, the second valve body can be used to control whether the oil in the oil delivery pipeline flows or stops. Of course, by cooperating with the first valve body and the second valve body, the first valve body can be opened when air circulation is required and closed when it is not required; the second valve body can be opened when the flow rate of the oil in the oil delivery module needs to be detected, and can be closed when the oil in the tank is insufficient. Of course, the entire diesel engine return oil measurement system is also provided with a controller, which is electrically connected to the first valve body, the second valve body, and the flowmeter. This configuration allows the controller to intelligently control the first valve body, the second valve body, and the flowmeter, thereby improving the intelligence of the system.

[0014] Preferably, the oil pipeline and the tank body form a U-shaped layout structure. This U-shaped layout structure can not only detect the flow rate of the oil in the oil pipeline, but also make the entire diesel engine oil return measurement system compact and beautiful. Of course, it should be noted that the oil entering the tank body is all pressurized oil, so it can flow and be transported in the U-shaped layout structure of the oil pipeline and the tank body because the oil pressure is very high.

[0015] Preferably, the tank is provided with a plurality of liquid level detection modules for detecting the oil level. The liquid level detection modules are provided mainly for real-time detection of the oil level, thereby alerting the oil delivery module. Of course, it should be noted that the liquid level detection modules are also electrically connected to the controller.

[0016] Preferably, the liquid level detection module is a liquid level sensor, comprising at least two liquid level sensors spaced vertically within the tank body, the liquid level sensors being interconnected. The provision of the liquid level detection module as a liquid level sensor provides a liquid level detection module. It should be noted that the liquid level detection module being a liquid level sensor is preferred and not restrictive, and other methods that can implement the principle are also feasible.

[0017] Preferably, the inner wall of the tank body is further fixed with a fixed partition, and the fixed partition is used to fix the liquid level sensor. The fixed partition is provided to fix the liquid level sensor.

[0018] Preferably, both the first and second valve bodies are remote-controlled valves. These valves are remote-controlled to control the gas and oil delivery modules. The remote-controlled valves may be solenoid valves, electric valves, air-controlled valves, or other valve structures, without limiting the present disclosure.

[0019] Compared with the prior art, the beneficial effects are:

[0020] The utility model comprises a tank body for storing return oil liquid, a gas transmission module for outputting the gas in the tank body, and an oil transmission module for transmitting the return oil in the tank body and measuring it, thereby separating air and oil and improving measurement accuracy.

[0021] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of a diesel engine oil return measurement system according to a first embodiment of the present utility model;

[0023] Figure 2 for Figure 1 Application block diagram of a diesel engine oil return measurement system according to embodiment 1;

[0024] Figure 3 This is a schematic diagram of a diesel engine oil return measurement system according to a second embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of a diesel engine oil return measurement system according to a third embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of a diesel engine oil return measurement system according to a fourth embodiment of the present invention. DETAILED DESCRIPTION

[0027] To make the objectives, features, and advantages of the present invention more readily apparent, the following detailed description of the present invention is provided with reference to the accompanying drawings. The accompanying drawings illustrate several embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

[0028] In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0029] In the present invention, unless otherwise expressly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. The terms "vertical," "horizontal," "left," "right," "above," "below," and similar expressions are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0030] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0031] Example 1

[0032] like Figure 1 The figure shows a first embodiment of a diesel engine oil return measurement system, which includes a tank body 1 for storing oil return liquid, a gas transmission module 2 for outputting the gas in the tank body 1, and an oil transmission module 3 for transporting the oil return in the tank body 1 and measuring it. The gas transmission module 2 and the oil transmission module 3 are both connected to the tank body 1.

[0033] Among them, it should be noted that the tank body 1 is a columnar tank body with a height of 700mm to 1000mm and a diameter between 150mm and 300mm. This design is to make the structure of the tank body 1 thinner, taller and larger in capacity, to ensure that the oil flowing into the tank body 1 from port A can be fully filled in about 3 minutes during the normal flow rate, thereby giving the oil in the tank body 1 time to settle, and to avoid the tank body 1 being too small and the liquid settling time being insufficient, which will cause incomplete gas-liquid phase separation. It should be noted that the volume of the tank body 1 cannot be too large, as too large a capacity will affect the reaction speed of liquid measurement. It has been proven in practice that the volume of the tank body 1 in this embodiment can meet the oil return processing of a diesel engine of about 400kW.

[0034] The air delivery module 2 is connected to the upper end of the tank body 1, and the oil delivery module 3 is connected to the lower end of the tank body, near the bottom. The air delivery module is connected to the upper end of the tank body, while the oil delivery module is connected to the lower end of the tank body, near the bottom. Air is delivered from the top based on the density of air and oil, preventing excessive air from entering the oil delivery module and minimizing the air content of the oil delivered from the lower end of the oil delivery module, thereby improving the accuracy of oil detection in the oil delivery module.

[0035] In addition, the gas delivery module 2 includes a gas delivery pipeline 21 and a first valve body 22 for controlling the opening and closing of the gas delivery pipeline 21. The first valve body 22 is installed in the gas delivery pipeline 21. The first valve body is provided to control the opening and closing of the gas delivery pipeline or the size of the airflow.

[0036] One end of the gas delivery module 2 and the oil delivery module 3 are connected to and communicate with the tank body 1, and the other ends of the gas delivery module 2 and the oil delivery module 3 are connected to and communicate with each other. This arrangement can achieve accurate detection of the oil in the oil delivery module to prevent mixing with air, while making the entire structure simple and compact, improving practicality.

[0037] In addition, the oil delivery module 3 includes an oil delivery pipeline 31, a flowmeter 32, and a second valve body 33. Both the flowmeter 32 and the second valve body 33 are installed in the oil delivery pipeline 31. The oil delivery module includes an oil delivery pipeline, a flowmeter, and a second valve body. The flowmeter and the second valve body are installed in the oil delivery pipeline to measure the oil in the oil delivery pipeline. The second valve body can also be used to control whether the oil in the oil delivery pipeline is flowing or not. The first and second valve bodies work together to open the first valve body when air is needed and close it when it is not. The second valve body can be opened to monitor the flow rate of the oil in the oil delivery module and closed when the oil in the tank is running low. The entire diesel engine oil return measurement system also includes a controller electrically connected to the first, second, and flowmeter valves. This configuration allows for intelligent control of the first, second, and flowmeter valves by the controller, enhancing the system's intelligence. The flowmeter used in this embodiment is typically an ultrasonic or mass flowmeter capable of handling small flow rates. These flowmeters eliminate the risk of sticking due to moving parts. However, they are sensitive to bubbles in the measured medium. The presence of bubbles degrades the signal echo quality, rendering the measurement impossible. Since the diesel fuel at the flowmeter's installation location is free of bubbles, the measurement is unaffected by bubbles, achieving optimal results.

[0038] The oil pipeline 31 and the tank body 1 form a U-shaped layout structure. This U-shaped layout not only allows for detection of the oil flow rate in the pipeline, but also makes the entire diesel engine oil return measurement system compact and aesthetically pleasing. It should be noted that the oil entering the tank body is pressurized oil, so it can flow and be transported in the U-shaped layout structure because the oil pressure is very high.

[0039] Furthermore, the tank body 1 is equipped with several liquid level detection modules 11 for detecting the oil level. These modules are primarily designed to monitor the oil level in real time, thereby alerting the oil delivery module. It should be noted that these modules are also electrically connected to the controller. The controller in this embodiment can be a 51 single-chip microcomputer or other capable controller. However, other controller models are also feasible, as long as they can perform the required functions.

[0040] The liquid level detection module 11 is a liquid level sensor. The liquid level sensors include at least two arranged vertically and spaced apart within the tank body 1, and the liquid level sensors are interconnected. The configuration of the liquid level detection module as a liquid level sensor provides a liquid level detection module. It should be noted that the use of the liquid level detection module as a liquid level sensor is preferred and not restrictive, and other methods that can implement the principle are also feasible. It should be noted that the optimal distance from the lowest level sensor of the tank body 1 to the bottom of the tank body is 230 mm to 260 mm.

[0041] In addition, a fixed partition 4 is fixed to the inner wall of the tank body 1. The fixed partition 4 is used to fix the liquid level sensor. The fixed partition is provided to fix the liquid level sensor.

[0042] The first valve body 22 and the second valve body 33 are remote-controlled valves. These valve bodies are remote-controlled to control the gas and oil delivery modules. The remote-controlled valves can be solenoid valves, electric valves, air-controlled valves, or other valve structures, and are not intended to be limiting.

[0043] The specific working principle is that this embodiment uses two liquid level sensors, and uses a float form.

[0044] 1. Liquid outflow: When the upper liquid level detection module 11, that is, the upper float, sends a signal, the tank body 1 is in a state with relatively high oil content, and the controller switches to a state where the second valve body 33 is open and the first valve body 22 is disconnected. As the gas-liquid mixture enters the tank body 1, the oil in the tank body 1 flows out along the bottom of the tank body 1, flows to the flow meter 32, and flows to the outlet B through the second valve body 33;

[0045] 2. Gas outflow: When the liquid level detection module 11 at the lower end, that is, the float at the lower end, has a signal, the tank body 1 is in a state with relatively more gas, and the controller switches to a state in which the second valve body 33 is disconnected and the first valve body 22 is flowing. As the gas-liquid mixture flows into the tank body 1, the gas flows out along the top of the tank body 1, flows through the first valve body 22, and flows to the outlet B through the flow device.

[0046] In addition, when using a diesel engine oil return measurement system in this embodiment, the diesel engine oil return pipeline is generally cut off and the device is connected in series. Figure 2 As shown, disconnect the line at C, insert the diesel engine oil return measurement system into it, and let the oil flow in from A and return from B.

[0047] Example 2

[0048] like Figure 3 The second embodiment of a diesel engine oil return measurement system is shown. This embodiment is similar to the first embodiment, except that the second valve body 33 in the first embodiment is a one-way valve.

[0049] Example 3

[0050] like Figure 4 The third embodiment of a diesel engine oil return measurement system is shown. This embodiment is similar to the first embodiment, except that a one-way valve 5 is provided at the gas outlet position connected to the gas pipeline 21 in the tank body 1.

[0051] Example 4

[0052] like Figure 5 The fourth embodiment of a diesel engine oil return measurement system is shown. This embodiment is similar to the first embodiment, except that the first valve body 22 and the second valve body 33 can also be combined into a three-way valve, which is set at the intersection of the gas transmission module 2 and the oil transmission module 3.

[0053] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A diesel engine oil return measurement system, characterized in that: The invention comprises a tank body (1) for storing return oil liquid, a gas transmission module (2) for outputting gas in the tank body (1), and an oil transmission module (3) for transmitting the return oil in the tank body (1) and measuring it, wherein the gas transmission module (2) and the oil transmission module (3) are both connected to the tank body (1); the oil transmission module (3) comprises an oil transmission pipeline (31), a flow meter (32) and a second valve body (33), wherein the flow meter (32) and the second valve body (33) are both installed in the oil transmission pipeline (31); and a plurality of liquid level detection modules (11) for detecting the height of the oil are provided in the tank body (1).

2. The diesel engine oil return measurement system according to claim 1, characterized in that: The gas delivery module (2) is connected to the upper end of the tank body (1), and the oil delivery module (3) is connected to the lower end of the tank body (1) and close to the bottom.

3. The diesel engine oil return measurement system according to claim 2, characterized in that: The gas delivery module (2) comprises a gas delivery pipeline (21) and a first valve body (22) for controlling the opening and closing of the gas delivery pipeline (21); the first valve body (22) is installed in the gas delivery pipeline (21).

4. The diesel engine oil return measurement system according to claim 2, characterized in that: One end of the gas transmission module (2) and the oil transmission module (3) are both connected to and communicate with the tank body (1), and the other ends of the gas transmission module (2) and the oil transmission module (3) are connected to and communicate with each other.

5. The diesel engine oil return measurement system according to claim 2, characterized in that: The oil pipeline (31) and the tank body (1) form a U-shaped layout structure.

6. The diesel engine oil return measurement system according to claim 1, characterized in that: The liquid level detection module (11) is a liquid level sensor, comprising at least two liquid level sensors vertically distributed at intervals within the tank body (1), and the liquid level sensors are interconnected.

7. The diesel engine oil return measurement system according to claim 6, characterized in that: A fixed partition (4) is also fixed to the inner side wall of the tank body (1), and the fixed partition (4) is used to fix the liquid level sensor.

8. The diesel engine oil return measurement system according to claim 3, characterized in that: The first valve body (22) and the second valve body (33) are remote control valves.

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