Lubricating oil moisture content detection device

Abstract

The present invention discloses a device for detecting the moisture content in lubricating oil, comprising a detection tank, several sampling components, a measuring component, and a visual measuring chamber. The several sampling components are respectively fixed on both sides of the lower end of the detection tank, and the measuring component and the visual measuring chamber are respectively fixed on the other two sides of the detection tank; the sampling component comprises a distribution block, several connecting blocks, and a sampling hose connector; the measuring component comprises a mounting bracket, a water-in-oil sensor, a DC power supply, an orange indicator light, a red indicator light, and a buzzer; the visual measuring chamber is connected to the detection tank, and the probe of the water-in-oil sensor extends into one side of the visual measuring chamber. The present invention has a simple structure, is easy to carry, and can be installed at any suitable location on a diesel engine. It can not only simultaneously detect the moisture content in the lubricating oil at different pipeline sampling points on a diesel engine, but also simultaneously monitor the moisture content in the lubricating oil at multiple different sampling points on multiple diesel engines. It is very convenient to use and can also transmit alarm signals to the alarm monitoring system in a timely manner.

Description

Technical Field

[0001] The invention relates to a lubricating oil detection device, in particular to a device for detecting moisture in lubricating oil of a marine diesel engine, and belongs to the technical field of diesel engine detection equipment. Background Art

[0002] Marine low-speed diesel engines contain numerous critical components, and lubricating oil primarily serves to lubricate and cool these components. Excessive moisture in the lubricating oil can cause rust in related components, necessitating disassembly, derusting, and repair. To avoid unnecessary work, strict monitoring of the lubricating oil's moisture content is essential. During bench testing, the lubricating oil required comes from the auxiliary engine room, which is typically equipped with an oil-water separator and related water-water detection equipment. Many diesel engines also have a water-in-oil sensor installed on the lubricating oil inlet main to monitor the moisture content. However, due to limitations in test conditions such as the number of control systems at the benches and the availability of power to the equipment, the alarm signals generated by the sensor cannot be transmitted to the alarm monitoring system, resulting in the system being unable to issue a speed reduction request, thus impacting normal diesel engine operation. Furthermore, lubricating oil sampling points are often only located in the main inlet pipe, failing to effectively monitor the condition of other lubricating oil lines. Consequently, when an alarm indicates excessive moisture content, the specific line experiencing the problem cannot be quickly identified. Summary of the Invention

[0003] The purpose of the present invention is to provide a device for detecting the moisture content in lubricating oil, which can simultaneously detect the moisture content in the lubricating oil of multiple pipelines on a diesel engine and transmit the alarm signal to the monitoring system in a timely manner.

[0004] The present invention is achieved through the following technical solutions:

[0005] A device for detecting the moisture content in lubricating oil comprises a detection tank, several sampling components, a measuring component and a visual measuring cavity, wherein the several sampling components are respectively fixed on both sides of the lower end of the detection tank, and the measuring component and the visual measuring cavity are respectively fixed on the other two sides of the detection tank; the sampling component comprises a distribution block, several connecting blocks and a sampling hose connector, the distribution block is fixedly connected to the detection tank, a plurality of through sampling channels are provided at the bottom of the distribution block, a plurality of connecting blocks are fixedly arranged side by side on the top of the distribution block, the oil inlets at the bottom of the plurality of connecting blocks are respectively connected to the plurality of sampling channels on the distribution block, the oil outlets inside the plurality of connecting blocks are respectively connected to the detection tank, one end of the sampling hose connector is connected to a sampling channel port of the distribution block, and the sampling hose connector is connected to the sampling channel port of the distribution block. The other end of the head is connected to the lubricating oil sampling point; the measuring assembly includes a mounting bracket, a water-in-oil sensor, a DC power supply, an orange indicator light, a red indicator light and a buzzer; the mounting bracket is fixed on the boss on the other side of the detection tank; the water-in-oil sensor is fixed on the upper end of the mounting bracket, the DC power supply is fixed on the inner side of the lower end of the mounting bracket, the DC power supply is connected to the water-in-oil sensor, the orange indicator light, the red indicator light and the buzzer are fixed side by side on the outer side of the lower end of the mounting bracket, and the three are respectively connected to the corresponding output signal channels of the water-in-oil sensor; the visual measuring cavity is communicated with the detection tank, the probe of the water-in-oil sensor extends into one side of the visual measuring cavity, and the discharge joint is connected to the discharge port of the visual measuring cavity.

[0006] The purpose of the present invention can be further achieved by the following technical measures.

[0007] The aforementioned device for detecting the moisture content in lubricating oil comprises a plurality of regulating valves provided on the outside of the distribution block, which are respectively connected to the corresponding sampling channels; a plurality of plugs are also provided at the bottom of the distribution block, which are respectively blocked on the openings of the remaining sampling channels.

[0008] In the aforementioned device for detecting the moisture content in lubricating oil, pressure gauges are respectively provided on the tops of the several connecting blocks, and a sealing ring is provided between the oil outlet of the connecting block and the detection tank.

[0009] In the aforementioned device for detecting the moisture content in lubricating oil, the visual measuring cavity is an arc-shaped plastic product with an open inner side, which is fixed to the detection tank by a shift block, and a sealing ring is provided at the connection between the visual measuring cavity and the detection tank.

[0010] The present invention features a simple structure, low cost, and portability. It can be installed anywhere on a diesel engine, eliminating the need for measuring the moisture content in lubricating oil, regardless of the number of control systems or power supply requirements. Because each distribution block is equipped with multiple sampling channels, and the number of distribution blocks can be increased or decreased based on actual conditions, the present invention can simultaneously measure the moisture content in lubricating oil at different pipeline sampling points on a single diesel engine, as well as at multiple different sampling points on multiple diesel engines. Even if the diesel engine lacks power-on testing conditions, or even if the engine is not closed or in a station, testing can be performed as long as lubricating oil enters the engine, making it extremely convenient to use. Furthermore, the present invention can promptly transmit detection alarm signals to an alarm monitoring system, which then issues a speed reduction request, thereby ensuring the proper operation of the diesel engine.

[0011] Advantages and features of the present invention are illustrated and explained by the following non-limiting description of preferred embodiments thereof, which are given by way of example only with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional explosion structure of the present invention;

[0013] Figure 2 yes Figure 1 A-axis three-dimensional explosion structure diagram;

[0014] Figure 3 It is a partial cross-sectional view of the present invention. DETAILED DESCRIPTION

[0015] The present invention will be further described below with reference to the accompanying drawings and examples.

[0016] like Figure 1 、 Figure 2 and Figure 3As shown, the present invention includes a detection tank 1, two sampling assemblies 2, a measuring assembly 3, and a visual measurement chamber 4. The detection tank 1 is a metal tank. The two sampling assemblies 2 are fixed to the two sides of the lower end of the detection tank 1, and the measuring assembly 3 and the visual measurement chamber 4 are fixed to the other two sides of the detection tank 1. The sampling assembly 2 includes a distribution block 21, three connecting blocks 22, and a sampling hose connector 23. The distribution block 21 is fixed to the detection tank 1 via fasteners. The bottom of the distribution block 21 is provided with three through-going sampling channels 211. The number of channels can be increased or decreased by replacing the model of the distribution block 21 according to actual needs. Three regulating valves 24 are provided on the outside of the distribution block 21, and the three regulating valves 24 are respectively connected to the three corresponding sampling channels 211. Three connecting blocks 22 are fixed side by side on top of the distribution block 21. The oil inlet 221 at the bottom of each connecting block is connected to the three sampling channels 211 on the distribution block 21. The oil outlets 222 on the inside of each connecting block 22 are connected to the detection tank 1. A sealing ring is installed between the connecting block oil outlet 222 and the detection tank 1. The tops of the three connecting blocks 22 are respectively equipped with a pressure gauge 223, which is used to indicate the lubricating oil pressure input by different sampling channels 211 and cooperate with the regulating valve 24 on the distribution block 21 to adjust the proportion of lubricating oil entering different sampling points of the detection tank 1. One end of the sampling hose connector 23 is connected to a sampling channel port of the distribution block 21, and the other end of the sampling hose connector 23 is connected to the lubricating oil sampling point. The hose can be configured to an appropriate length as required. The other end of the sampling hose connector 23 is a root valve, which can be configured with connectors of different specifications according to the different interface sizes of different sampling points. Two plugs 25 are also installed at the bottom of the distribution block 21, and the two plugs 25 respectively block the remaining two sampling channel ports.

[0017] The measurement assembly 3 includes a mounting bracket 31, a water-in-oil sensor 32, a DC power supply 33, an orange indicator light 34, a red indicator light 35, and a buzzer 36. The mounting bracket 31 is fixed to the boss on the other side of the test tank 1 via fasteners. The water-in-oil sensor 32 is also fixed to the upper end of the mounting bracket 31 via fasteners. The probe 321 of the water-in-oil sensor 32 extends into one side of the visual measurement cavity 4. The water-in-oil sensor 32 is provided with a display interface for reading measurement data. The display interface can display the water content in the oil and the lubricating oil temperature. The water-in-oil sensor 32 measures and outputs a current signal of 4 to 20 mA, which corresponds to a water content in the oil of 0 to 1 aw. For diesel engines, the high alarm value is usually 0.5 aw, and the extremely high alarm value is 0.9 aw. A DC power supply 33 is fixed to the lower end of the mounting bracket 31. The DC power supply 33 is electrically connected to the water-in-oil sensor 32 to provide a stable power supply for the water-in-oil sensor 32. An orange indicator light 34, a red indicator light 35 and a buzzer 36 are fixed side by side on the lower end of the mounting bracket 31. The three are respectively connected to the corresponding output signal channels of the water-in-oil sensor 32, and serve as local indications and alarm prompts for high and ultra-high water content in the lubricating oil, respectively.

[0018] The visual measurement chamber 4 is an arc-shaped plastic part with an open interior. It is secured to the test tank 1 via a shifter. The interior of the visual measurement chamber 4 communicates with the test tank 1, with a sealing ring between them. Once the visual measurement chamber 4 is pushed into the test tank 1 and in contact with the sealing ring, the shifter is rotated to secure it to the test tank 1. The measurement of the water-in-oil sensor 32 can be observed through the visual measurement chamber 4. A drain connector 41 is connected to the drain port of the visual measurement chamber 4 and is responsible for discharging the lubricating oil from the drain port. The opening of the manual drain valve can be controlled.

[0019] In this embodiment, the two distribution blocks 21 each have three sampling channels 211, for a total of six. If only one sampling channel 211 is to be used to sample lubricating oil at one point, the sampling hose connector 23 is connected to the sampling channel 211, and the remaining sampling channels 211 are sealed with plugs 25. If six sampling channels 211 are to be used to sample lubricating oil at six points simultaneously, six sampling hose connectors 23 are required to be connected to the six sampling channels 211 respectively. Assuming that six sampling channels 211 are currently used to sample lubricating oil at six points, as shown in FIG. Figure 3 As shown, during the test, the sampled lubricating oil at the six points flows into the corresponding sampling channel 211 through the respective sampling hose connectors 23, and then flows from the sampling channel 211 through the oil inlet 221 of the connecting block 22, and enters the test tank 1 from the oil outlet 222 of the connecting block 22. The sampled lubricating oil at the six points is fully mixed in the test tank 1 and then enters the visual measurement chamber 4. The DC power supply 33 is turned on, and the water-in-oil sensor 32 starts working. When the value on the display interface of the water-in-oil sensor 32 is seen to be high, and the orange indicator light 34 or the red indicator light 35 and the buzzer 36 sound an alarm indication, the regulating valve 24 on the distribution block 21 is used to adjust the proportion of the sampled lubricating oil input into the six sampling channels 211 in turn. If the measured water content value in the lubricating oil fluctuates, the water content value in the lubricating oil is normal after closing the lubricating oil input of a certain sampling channel 211, and it can be determined that the water content in the lubricating oil at the sampling point corresponding to the sampling channel 211 is abnormal.

[0020] In addition to the above embodiments, the present invention may also have other implementation methods. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope required by the present invention.

Claims

1. A device for detecting the moisture content in lubricating oil, characterized by: It includes a detection tank, several sampling components, a measuring component and a visual measuring cavity, the several sampling components are respectively fixed on both sides of the lower end of the detection tank, and the measuring component and the visual measuring cavity are respectively fixed on the other two sides of the detection tank; the sampling component includes a distribution block, several connecting blocks and a sampling hose connector, the distribution block is fixedly connected to the detection tank, and the bottom of the distribution block is provided with several through sampling channels, several connecting blocks are fixed side by side on the top of the distribution block, the oil inlets at the bottom of several connecting blocks are respectively connected with the several sampling channels on the distribution block, and the oil outlets inside several connecting blocks are respectively connected with the detection tank, one end of the sampling hose connector is connected to a sampling channel port of the distribution block, and the other end of the sampling hose connector is connected to the lubricating oil sampling point; several regulating valves are provided on the outside of the distribution block, and the several regulating valves are respectively connected with the corresponding several sampling channels, and the bottom of the distribution block is also provided with several stuffy Plugs, several plugs are respectively blocked on the remaining sampling channel openings; pressure gauges are respectively provided on the tops of the several connecting blocks, and a sealing ring is provided between the oil outlet of the connecting block and the detection tank; the measuring assembly includes a mounting bracket, a water-in-oil sensor, a DC power supply, an orange indicator light, a red indicator light and a buzzer; the mounting bracket is fixed on the boss on the other side of the detection tank, the water-in-oil sensor is fixed on the upper end of the mounting bracket, the DC power supply is fixed on the inner side of the lower end of the mounting bracket, the DC power supply is connected to the water-in-oil sensor, the orange indicator light, the red indicator light and the buzzer are fixed side by side on the outer side of the lower end of the mounting bracket, and the three are respectively connected to the corresponding output signal channels of the water-in-oil sensor; the visual measuring cavity is communicated with the detection tank, the probe of the water-in-oil sensor extends into one side of the visual measuring cavity, and the discharge joint is connected to the discharge port of the visual measuring cavity.

2. The device for detecting the moisture content in lubricating oil according to claim 1, wherein: The visual measurement cavity is an arc-shaped plastic product with an open inner side, which is fixed on the detection tank through a shift block. A sealing ring is provided at the connection between the visual measurement cavity and the detection tank.

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