CN112212200A - On-line monitoring device for oil gas humidity of cement lubricating station - Google Patents
On-line monitoring device for oil gas humidity of cement lubricating station Download PDFInfo
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- CN112212200A CN112212200A CN202011236780.1A CN202011236780A CN112212200A CN 112212200 A CN112212200 A CN 112212200A CN 202011236780 A CN202011236780 A CN 202011236780A CN 112212200 A CN112212200 A CN 112212200A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N29/00—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2200/00—Condition of lubricant
- F16N2200/20—Detecting water
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Abstract
The invention discloses an oil-gas humidity online monitoring device for a cement lubricating station, and belongs to the technical field of oil-gas humidity monitoring. The online water content monitoring assembly comprises a first oil inlet pipe, a second oil inlet pipe, a gear pump, a monitoring module, an oil return pipe and a flushing assembly; the first oil inlet pipe vertically extends into the lubricating station oil tank relative to the lubricating station oil tank, an oil inlet of the first oil inlet pipe is located at the bottom of the lubricating station oil tank, and the other end of the first oil inlet pipe is connected with the monitoring module; the second oil inlet pipe and the first oil inlet pipe are arranged side by side, an oil inlet of the second oil inlet pipe is positioned above an oil inlet of the first oil inlet pipe, and the other end of the second oil inlet pipe is connected with the monitoring module; the monitoring module is connected with the upper end of an oil tank of the lubricating station through the oil return pipe so as to enable oil to flow back, and the oil return pipe is provided with the gear pump. The invention meets the requirement of continuously monitoring the water content in the lubricating liquid on line for a long time.
Description
Technical Field
The invention relates to the technical field of oil-gas humidity monitoring, in particular to an oil-gas humidity online monitoring device for a cement lubricating station.
Background
Moisture is often present in the lubrication station oil tank in cement lubrication stations and can enter the lubrication station from a number of routes, including breather, recirculation of lubrication fluid, equipment seal aging, and the like. There are three main hazards of moisture in lubricating oils: firstly, after water is mixed into the lubricating oil, foam is easily produced to block an oil duct, the condensation point of the lubricating oil is also improved, the low-temperature flowing performance is not facilitated, the strength of an oil film is weakened, the lubricating performance is reduced, and parts are abraded; secondly, the water can react with the scrap iron falling into the lubricating oil to generate iron soap, and the iron soap is mixed with pollutants such as dust, machine stains, colloid and the like in the lubricating oil to generate oil sludge which is accumulated in an oil duct of a lubricating oil system and filter nets of various filters, so that the oil supply on each friction surface is insufficient, and the abrasion of parts is accelerated; and thirdly, the moisture in the lubricating oil can also absorb sulfur-containing oxides and low-molecular organic acid in the waste gas of the combustion chamber, so that the corrosion to metals is promoted.
Moisture is one of the main factors causing contamination of the lubricating oil, and the lubricating oil containing water in excess of the standard may cause various damages to mechanical equipment. The water content in the lubricating oil is detected regularly, and the safe and stable operation of mechanical equipment can be ensured.
The Chinese patent CN201620318614.9 discloses a lubricating oil on-line monitoring system based on multi-sensor integration, which comprises a fixed seat, a viscosity sensor, a moisture sensor, a grinding particle image sensor, a gear pump, a control system and a data analysis module, wherein the control system is connected with the grinding particle image sensor, the viscosity sensor, the moisture sensor and the gear pump; the data analysis module is connected with the control system. This patent adopts moisture sensor monitoring fluid moisture condition, but this kind of moisture sensor can appear the probe because of the oil film covers at measurement fluid moisture content in-process, and measurement accuracy worsens, can't satisfy the task of long-time online continuous monitoring fluid moisture content.
There is therefore a need for a device that can satisfy the monitoring of the moisture of the lubricating oil in a lubrication station.
Disclosure of Invention
The invention aims to solve the problems and provide an online oil-gas humidity monitoring device for a cement lubricating station, which meets the requirement of continuously monitoring the moisture content in a lubricating liquid online for a long time.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the online monitoring device for the oil-gas humidity of the cement lubricating station comprises a lubricating station oil tank, a monitoring center and an online moisture monitoring assembly arranged outside the lubricating station oil tank, wherein the online moisture monitoring assembly comprises a first oil inlet pipe, a second oil inlet pipe, a gear pump, a monitoring module, an oil return pipe and a flushing assembly; the first oil inlet pipe vertically extends into the lubricating station oil tank relative to the lubricating station oil tank, an oil inlet of the first oil inlet pipe is located at the bottom of the lubricating station oil tank, and the other end of the first oil inlet pipe is connected with the monitoring module; the second oil inlet pipe and the first oil inlet pipe are arranged side by side, an oil inlet of the second oil inlet pipe is positioned above an oil inlet of the first oil inlet pipe, and the other end of the second oil inlet pipe is connected with the monitoring module; the monitoring module is connected with the upper end of an oil tank of the lubricating station through the oil return pipe so as to enable oil to flow back, and the gear pump is arranged on the oil return pipe;
the monitoring module comprises a detection box and a control module, wherein the detection box is divided into an equipment area, a flushing area, an equipment area and a flushing area from top to bottom, and the equipment area and the flushing area are separated by adopting a partition plate; the equipment area is internally provided with a first monitoring channel consisting of a first oil inlet interface, a first dielectric constant module and a first oil outlet interface in sequence, and a second monitoring channel consisting of a second oil inlet interface, a second dielectric constant module and a second oil outlet interface in sequence; the first oil inlet interface and the second oil inlet interface are arranged on the side end face of the detection box, the first oil outlet interface and the second oil outlet interface are both positioned in the detection box and are respectively arranged on an oil return pipe extending into the detection box, and the first oil outlet interface and the second oil outlet interface are both communicated with the oil return pipe; the control module is arranged in the detection box and is connected with the first dielectric constant module and the second dielectric constant module;
the first dielectric constant module comprises a first outer block, a second outer block, an inner ball block and an interface column, wherein the first outer block and the second outer block are both in a rectangular structure and can be combined to form a sealed spherical cavity, the cambered surfaces of the spherical cavities corresponding to the first outer block and the second outer block are provided with corresponding spherical outer electrodes, the inner ball block is in a spherical structure and is concentrically arranged in the spherical cavity, the upper spherical surface of the inner ball block is provided with two spherical inner electrodes, and the spherical outer electrodes and the spherical inner electrodes correspond to each other one by one and can form a dielectric constant measuring area; the interface column is clamped and fixed in a through hole formed by the first outer chunk and the second outer chunk in a symmetrical profile mode, and an insulating layer is arranged on the outer side of the interface column and is respectively sealed with the first outer chunk and the second outer chunk; one end of the interface column is positioned in the spherical cavity and fixedly connected with the inner spherical block, the inner electrodes are respectively connected with inner electrode leads positioned in the interface column, and the outer electrodes are connected with outer electrode leads positioned in the interface column; the inner electrode lead and the outer electrode lead are electrically connected with the control module; a first liquid inlet communicated with a corresponding first oil inlet port is formed in the middle of one side of the first outer group, which corresponds to the spherical cavity, and a first liquid outlet communicated with a corresponding first oil outlet port is formed in the second outer group, which corresponds to the first liquid inlet port; the first oil inlet port is communicated with the first liquid inlet through a first electromagnetic three-way valve; the first dielectric constant module and the second dielectric constant module have the same structure, a second oil inlet interface is communicated with a second liquid inlet of the second dielectric constant module through a second electromagnetic three-way valve, and a second liquid outlet of the second dielectric constant module is communicated with a second oil outlet interface;
the flushing component comprises a flushing pipe, a flushing pump, a third electromagnetic three-way valve, a flushing liquid chamber and a waste liquid chamber, wherein the flushing liquid chamber is divided by a flushing area; one end of the flushing pipe is arranged in the flushing liquid chamber and is connected with a flushing pump, and the other end of the flushing pipe is communicated with the first liquid inlet through the first electromagnetic three-way valve and the second liquid inlet through the second electromagnetic three-way valve; a third electromagnetic three-way valve is arranged on the pipeline section of the oil return pipe in the detection box, an outlet of the third electromagnetic three-way valve is communicated with the waste liquid chamber, and the third electromagnetic three-way valve is positioned at the tail end of the pipeline section in the flow direction;
when monitoring work is carried out, the control module is connected with and controls the first electromagnetic three-way valve, the second electromagnetic three-way valve and the third electromagnetic three-way valve to enable the first monitoring channel and the first monitoring channel to be communicated, the gear pump is started and detection work is started, the control module sends data monitored by the first dielectric constant module and the second dielectric constant module to the monitoring center, and the monitoring center obtains the moisture content in oil according to data analysis and provides a real-time moisture content chart; when the monitoring operation is stopped, the control module is connected with and controls the first electromagnetic three-way valve, the second electromagnetic three-way valve and the third electromagnetic three-way valve to enable the flushing pipe to be respectively communicated with the first liquid inlet and the second liquid inlet and to penetrate through the waste liquid chamber, the flushing pump is started, the flushing pump is stopped after being started for 1-2s, and the flushing operation is repeated for 2-3 times.
Preferably, the interface column is a long-strip-shaped rod with a rectangular cross section, the inner ball block corresponds to the other side of the interface column and is provided with a supporting rod, and one end of the supporting rod can be horizontally placed on a clamping groove corresponding to the first outer block.
Preferably, the first outer block and the second outer block are made of aluminum alloy.
Preferably, the first outer block is connected with the bottom in the detection box through an elastic block, and a micro vibrator is arranged at the bottom of the first outer block.
Preferably, the first oil inlet pipe and the second oil inlet pipe are respectively provided with an auxiliary oil pump, and the auxiliary oil pumps are electrically connected with the control module; before the monitoring work, the control module controls the first electromagnetic three-way valve, the second electromagnetic three-way valve and the third electromagnetic three-way valve to enable the first oil inlet pipe and the second oil inlet pipe to penetrate through the waste liquid chamber, and the auxiliary oil pump is started to be used for flushing the residual flushing liquid.
Preferably, the first oil inlet pipe and the second oil inlet pipe are respectively provided with a filter.
Preferably, the oil return pipe is provided with a one-way valve which faces the oil tank of the lubrication station.
Preferably, one end of the interface column, which corresponds to the inner ball block, is provided with a temperature sensor, and the temperature sensor is connected with the control module.
Preferably, the oil inlet of the third oil inlet pipe is arranged above the liquid level in the oil tank of the lubrication station, the third oil inlet pipe is provided with an air pump and is connected with a third dielectric constant module arranged in the monitoring module, and the third dielectric constant module is communicated with the oil tank of the lubrication station through a copper pipe with a one-way valve; the copper pipe and the third oil inlet pipe are arranged relatively far away from the oil tank of the lubricating station corresponding to the oil inlet pipe, the third dielectric constant module has the same structure as the first dielectric constant module, and a heating wire is arranged in the third dielectric constant module and used for heating the third dielectric constant module; and the control module is connected with and controls the third dielectric constant module, the air pump and the heating wire.
Preferably, the copper pipe is provided with a normally open electromagnetic switch valve connected with the control module.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. the online water content monitoring component is arranged, so that the detection data can be transmitted to the monitoring center in time, the monitoring center obtains the water content in the oil according to the data analysis, and provides a real-time water content chart to help technicians know the change condition of the water content of the oil in time and drain water in time or provide help for solving the problem of water infiltration.
2. The detection box is internally provided with a new moisture monitoring structure, a structure consisting of an inner electrode and an outer electrode is constructed by utilizing the dielectric constant principle, the inner electrode and the outer electrode are both spherical structures, the spherical structures can enable the first monitoring channel to form an upward flowing spherical monitoring channel, and particularly, the inner ball blocks play a role in buffering and decelerating entering oil and enable the entering oil to uniformly flow; meanwhile, the upper and lower measurement is carried out in the same dielectric constant module, so that the influence caused by the entering of oil is avoided, and the two sets of monitoring are more accurate and better in monitoring effect.
Drawings
Fig. 1 is a schematic structural diagram of the overall functional module of the present invention.
FIG. 2 is a schematic view of the structure of the detection box of the present invention.
FIG. 3 is a schematic diagram of a first dielectric constant module according to the present invention.
In the attached drawing, 1-a lubricating station oil tank, 2-a monitoring middle, 3-an online moisture monitoring component, 4-a first oil inlet pipe, 5-a second oil inlet pipe, 6-a gear pump, 7-an oil return pipe, 8-a first oil inlet interface, 9-a first electromagnetic three-way valve, 10-a first dielectric constant module, 11-a first oil outlet interface, 12-a second electromagnetic three-way valve, 13-a second dielectric constant module, 14-a detection box, 15-a flushing pump, 16-a flushing pipe, 17-a second electromagnetic three-way valve, 101-a first external block, 102-a second external block, 103-an internal ball block, 104-an external electrode, 105-an internal electrode, 106-an interface column, 107-a first liquid inlet, 108-a first liquid outlet, 141-an equipment area, 142-flushing fluid chamber, 143-waste fluid chamber.
Detailed Description
The following further describes the embodiments of the present invention with reference to the drawings.
As shown in figure 1, the on-line monitoring device for the oil-gas humidity of the cement lubricating station analyzes the condition of the water content in the lubricating oil in the oil tank 1 of the lubricating station and the condition of the water content in the oil tank 1 of the lubricating station by monitoring, so as to monitor the change condition of the water content of the oil in time on line. The online monitoring device comprises a lubricating station oil tank 1, a monitoring center 2 and an online moisture monitoring assembly 3 arranged outside the lubricating station oil tank 1. The online moisture monitoring assembly 3 comprises a first oil inlet pipe 4, a second oil inlet pipe 5, a gear pump 6, a monitoring module, an oil return pipe 7 and a flushing assembly. The first oil inlet pipe 4 vertically extends into the lubricating station oil tank 1 relative to the lubricating station oil tank 1, an oil inlet of the first oil inlet pipe 4 is located at the bottom of the lubricating station oil tank 1, and the other end of the first oil inlet pipe 4 is connected with the monitoring module. The second oil inlet pipe 5 and the first oil inlet pipe 4 are arranged side by side, the oil inlet of the second oil inlet pipe 5 is located above the oil inlet of the first oil inlet pipe 4, and the other end of the second oil inlet pipe 5 is connected with the monitoring module. The monitoring module is connected with the upper end of the lubricating station oil tank 1 through the oil return pipe 7 so that oil can flow back, and the oil return pipe 7 is provided with the gear pump 6. The monitoring module measures the moisture content in oil and gas by using dielectric constant.
As shown in fig. 2-3, the monitoring module includes a detection box 14 and a control module, the detection box 14 is divided into an equipment area 141 and a flushing area 141 from top to bottom, and the equipment area and the flushing area are separated by a partition. The equipment area 141 is provided with a first monitoring channel which is composed of a first oil inlet port 8, a first dielectric constant module 10 and a first oil outlet port 11, and a second monitoring channel which is composed of a second oil inlet port, a second dielectric constant module 13 and a second oil outlet port. The first oil inlet port 8 and the second oil inlet port are arranged on the side end face of the detection box 14, the first oil outlet port 11 and the second oil outlet port are both located in the detection box 14 and are respectively arranged on an oil return pipe 7 extending into the detection box 14, and the first oil outlet port 11 and the second oil outlet port are both communicated with the oil return pipe 7. The control module is installed in the detection box 14 and connects the first dielectric constant module 10 and the second dielectric constant module 13.
Here, the flushing assembly includes a flushing pipe 16, a flushing pump 15, a third electromagnetic three-way valve, a flushing liquid chamber 142 partitioned by a flushing area, and a waste liquid chamber 143, and the flushing liquid chamber 142 is filled with a flushing liquid. The flushing fluid is lubricating oil, also can be anhydrous alcohol, diesel oil, because first dielectric constant module 10, the washing of second dielectric constant module 13 mainly avoid because the lubricating oil itself that passes through exists emulsification or contain the condition such as impurity more thereby cause form at first dielectric constant module 10, second dielectric constant module 13 and block or siltation thereby cause the detection effect variation. One end of a flushing pipe 16 is arranged in the flushing liquid chamber 142 and is connected with a flushing pump 15, and the other end of the flushing pipe 16 is communicated with the first liquid inlet 107 through the first electromagnetic three-way valve 9 and is communicated with a second liquid inlet through the second electromagnetic three-way valve 1712; a third electromagnetic three-way valve is arranged on the pipeline section of the oil return pipe 7 in the detection box 14, an outlet of the third electromagnetic three-way valve is communicated with the waste liquid chamber 143, and the third electromagnetic three-way valve is positioned at the tail end of the pipeline section in the flow direction. The first electromagnetic three-way valve 9 is a three-position three-way electromagnetic valve and is used for separately communicating the first oil inlet port 8 with the first dielectric constant module 10, communicating the flushing liquid chamber 142 with the first dielectric constant module 10, communicating the first dielectric constant module 10 with the waste liquid chamber 143, and completing liquid inlet and flushing.
Similarly, the second oil inlet port, the flushing pipe 16 and the waste liquid pipe are respectively communicated with the first liquid inlet 107 of the second dielectric constant module 13 through the second electromagnetic three-way valve 1712, and are also used for respectively and independently realizing the communication between the second oil inlet port and the second dielectric constant module 13, the communication between the flushing liquid chamber 142 and the second dielectric constant module 13, and the communication between the second dielectric constant module 13 and the waste liquid chamber 143, so that the liquid inlet and the flushing are completed.
As shown in fig. 3, the first dielectric constant module 10 includes a first outer block 101, a second outer block 102, an inner ball 103, and an interface column 106, where the first outer block 101 and the second outer block 102 are rectangular and the first outer block 101 and the second outer block 102 can be closed to form a sealed ball chamber. The cambered surfaces of the spherical cavities corresponding to the first outer block 101 and the second outer block 102 are provided with corresponding spherical outer electrodes 104, the inner spherical block 103 is in a spherical structure and concentrically arranged in the spherical cavity, the upper spherical surface of the inner spherical block 103 is provided with two spherical inner electrodes 105, and the spherical outer electrodes 104 and the spherical inner electrodes 105 are in one-to-one correspondence and can form a dielectric constant measuring area. The interface column 106 is clamped in a through hole formed by the first outer block 101 and the second outer block 102 in a symmetrical outline, and an insulating layer is arranged on the outer side of the interface column 106 and forms sealing with the first outer block 101 and the second outer block 102 respectively. One end of the interface column 106 is positioned in the spherical cavity and fixedly connected with the inner spherical block 103, the inner electrodes 105 are respectively connected with the leads of the inner electrodes 105 positioned in the interface column 106, and the outer electrodes 104 are connected with the leads of the outer electrodes 104 positioned in the interface column 106. The inner electrode 105 lead and the outer electrode 104 lead are electrically connected with the control module. A first liquid inlet 107 communicated with the first oil inlet port 8 is formed in the middle of one side, corresponding to the spherical cavity, of the first outer block 101, and a first liquid outlet 108 communicated with the first oil outlet port 11 is formed in the second outer block and corresponds to the first liquid inlet 107; the first oil inlet port 8 is communicated with the first liquid inlet 107 through a first electromagnetic three-way valve 9. The first dielectric constant module 10 and the second dielectric constant module 13 have the same structure, the second oil inlet port is communicated with the second liquid inlet of the second dielectric constant module 13 through a second electromagnetic three-way valve 1712, and the second liquid outlet of the second dielectric constant module 13 is communicated with the second oil outlet port.
The interface column 106 is a long strip-shaped rod with a rectangular cross section, a support rod is arranged on the other side, corresponding to the interface column 106, of the inner ball block 103, and one end of the support rod can be horizontally placed on a clamping groove corresponding to the first outer block 101. The first outer block 101 and the second outer block 102 are aluminum alloy. The first outer block 101 is connected with the bottom in the detection box 14 through an elastic block, and a micro vibrator is arranged at the bottom of the first outer block 101.
Wherein, the first oil inlet pipe 4 and the second oil inlet pipe 5 are respectively provided with a filter. The oil return pipe 7 is provided with a one-way valve which faces the oil tank 1 of the lubrication station. And one end of the interface column 106, corresponding to the inner ball block 103, is provided with a temperature sensor, and the temperature sensor is connected with the control module.
When monitoring is carried out, the control module is connected with and controls the first electromagnetic three-way valve 9, the second electromagnetic three-way valve 1712 and the third electromagnetic three-way valve, so that the first monitoring channel and the first monitoring channel are communicated, the gear pump 6 is started and the detection is started, the control module sends data monitored by the first dielectric constant module 10 and the second dielectric constant module 13 to the center 2 of the monitoring center, the center 2 of the monitoring center obtains the moisture content in the oil according to the data analysis, and a real-time moisture content chart is provided; when the monitoring operation is stopped, the control module connects and controls the first electromagnetic three-way valve 9, the second electromagnetic three-way valve 1712 and the third electromagnetic three-way valve to enable the flushing pipe 16 to be respectively communicated with the first liquid inlet 107 and the second liquid inlet and to penetrate through the waste liquid chamber 143, the flushing pump 15 is started, the flushing pump 15 is stopped after being started for 1 to 2 seconds, and the flushing operation is repeated for 2 to 3 times.
When a plurality of oil inlet pipes are sampled, the plurality of oil inlet pipes are simultaneously and respectively processed according to the above operation.
Here, the first oil inlet pipe 4 and the second oil inlet pipe 5 are respectively provided with an auxiliary oil pump, and the auxiliary oil pumps are electrically connected with the control module; before monitoring operation, the control module controls the first electromagnetic three-way valve 9, the second electromagnetic three-way valve 1712 and the third electromagnetic three-way valve to enable the first oil inlet pipe 4 and the second oil inlet pipe 5 to penetrate through the waste liquid chamber 143, and starts the auxiliary oil pump to flush the flushing liquid residue.
In order to detect the water content of the oil gas, a third oil inlet pipe is further arranged, an oil inlet of the third oil inlet pipe is arranged above the liquid level in the oil tank 1 of the lubrication station, an air pump is arranged on the third oil inlet pipe, the third oil inlet pipe is connected with a third dielectric constant module arranged in the monitoring module, and the third dielectric constant module is communicated with the oil tank 1 of the lubrication station through a copper pipe with a one-way valve; the copper pipe and the third oil inlet pipe are arranged relatively far away from the oil tank 1 of the lubricating station, the third dielectric constant module has the same structure as the first dielectric constant module 10, and a heating wire is arranged in the third dielectric constant module and used for heating the third dielectric constant module; and the control module is connected with and controls the third dielectric constant module, the air pump and the heating wire. And the copper pipe is provided with a normally open electromagnetic switch valve connected with the control module.
The above description is intended to describe in detail the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the claims of the present invention, and all equivalent changes and modifications made within the technical spirit of the present invention should fall within the scope of the claims of the present invention.
Claims (10)
1. Cement lubrication station oil gas humidity on-line monitoring device, including lubrication station oil tank, surveillance center and set up the outer online moisture monitoring subassembly of lubrication station oil tank, its characterized in that: the online water monitoring assembly comprises a first oil inlet pipe, a second oil inlet pipe, a gear pump, a monitoring module, an oil return pipe and a flushing assembly; the first oil inlet pipe vertically extends into the lubricating station oil tank relative to the lubricating station oil tank, an oil inlet of the first oil inlet pipe is located at the bottom of the lubricating station oil tank, and the other end of the first oil inlet pipe is connected with the monitoring module; the second oil inlet pipe and the first oil inlet pipe are arranged side by side, an oil inlet of the second oil inlet pipe is positioned above an oil inlet of the first oil inlet pipe, and the other end of the second oil inlet pipe is connected with the monitoring module; the monitoring module is connected with the upper end of an oil tank of the lubricating station through the oil return pipe so as to enable oil to flow back, and the gear pump is arranged on the oil return pipe;
the monitoring module comprises a detection box and a control module, wherein the detection box is divided into an equipment area, a flushing area, an equipment area and a flushing area from top to bottom, and the equipment area and the flushing area are separated by adopting a partition plate; the equipment area is internally provided with a first monitoring channel consisting of a first oil inlet interface, a first dielectric constant module and a first oil outlet interface in sequence, and a second monitoring channel consisting of a second oil inlet interface, a second dielectric constant module and a second oil outlet interface in sequence; the first oil inlet interface and the second oil inlet interface are arranged on the side end face of the detection box, the first oil outlet interface and the second oil outlet interface are both positioned in the detection box and are respectively arranged on an oil return pipe extending into the detection box, and the first oil outlet interface and the second oil outlet interface are both communicated with the oil return pipe; the control module is arranged in the detection box and is connected with the first dielectric constant module and the second dielectric constant module;
the first dielectric constant module comprises a first outer block, a second outer block, an inner ball block and an interface column, wherein the first outer block and the second outer block are both in a rectangular structure and can be combined to form a sealed spherical cavity, the cambered surfaces of the spherical cavities corresponding to the first outer block and the second outer block are provided with corresponding spherical outer electrodes, the inner ball block is in a spherical structure and is concentrically arranged in the spherical cavity, the upper spherical surface of the inner ball block is provided with two spherical inner electrodes, and the spherical outer electrodes and the spherical inner electrodes correspond to each other one by one and can form a dielectric constant measuring area; the interface column is clamped and fixed in a through hole formed by the first outer chunk and the second outer chunk in a symmetrical profile mode, and an insulating layer is arranged on the outer side of the interface column and is respectively sealed with the first outer chunk and the second outer chunk; one end of the interface column is positioned in the spherical cavity and fixedly connected with the inner spherical block, the inner electrodes are respectively connected with inner electrode leads positioned in the interface column, and the outer electrodes are connected with outer electrode leads positioned in the interface column; the inner electrode lead and the outer electrode lead are electrically connected with the control module; a first liquid inlet communicated with a corresponding first oil inlet port is formed in the middle of one side of the first outer group, which corresponds to the spherical cavity, and a first liquid outlet communicated with a corresponding first oil outlet port is formed in the second outer group, which corresponds to the first liquid inlet port; the first oil inlet port is communicated with the first liquid inlet through a first electromagnetic three-way valve; the first dielectric constant module and the second dielectric constant module have the same structure, a second oil inlet interface is communicated with a second liquid inlet of the second dielectric constant module through a second electromagnetic three-way valve, and a second liquid outlet of the second dielectric constant module is communicated with a second oil outlet interface;
the flushing component comprises a flushing pipe, a flushing pump, a third electromagnetic three-way valve, a flushing liquid chamber and a waste liquid chamber, wherein the flushing liquid chamber is divided by a flushing area; one end of the flushing pipe is arranged in the flushing liquid chamber and is connected with a flushing pump, and the other end of the flushing pipe is communicated with the first liquid inlet through the first electromagnetic three-way valve and the second liquid inlet through the second electromagnetic three-way valve; a third electromagnetic three-way valve is arranged on the pipeline section of the oil return pipe in the detection box, an outlet of the third electromagnetic three-way valve is communicated with the waste liquid chamber, and the third electromagnetic three-way valve is positioned at the tail end of the pipeline section in the flow direction;
when monitoring work is carried out, the control module is connected with and controls the first electromagnetic three-way valve, the second electromagnetic three-way valve and the third electromagnetic three-way valve to enable the first monitoring channel and the first monitoring channel to be communicated, the gear pump is started and detection work is started, the control module sends data monitored by the first dielectric constant module and the second dielectric constant module to the monitoring center, and the monitoring center obtains the moisture content in oil according to data analysis and provides a real-time moisture content chart; when the monitoring operation is stopped, the control module is connected with and controls the first electromagnetic three-way valve, the second electromagnetic three-way valve and the third electromagnetic three-way valve to enable the flushing pipe to be respectively communicated with the first liquid inlet and the second liquid inlet and to penetrate through the waste liquid chamber, the flushing pump is started, the flushing pump is stopped after being started for 1-2s, and the flushing operation is repeated for 2-3 times.
2. The online oil-gas humidity monitoring device for the cement lubricating station as claimed in claim 1, wherein: the interface post is rectangular shape pole for the cross section, interior ball piece corresponds the opposite side of interface post is equipped with the bracing piece, bracing piece one end can the level be placed on the draw-in groove that first outer blocking piece corresponds.
3. The online oil-gas humidity monitoring device for the cement lubricating station as claimed in claim 1, wherein: the first outer block and the second outer block are made of aluminum alloy.
4. The online oil-gas humidity monitoring device for the cement lubricating station as claimed in claim 1, wherein: the first outer assembly block is connected with the bottom in the detection box through an elastic block, and a micro vibrator is arranged at the bottom of the first outer assembly block.
5. The online oil-gas humidity monitoring device for the cement lubricating station as claimed in claim 1, wherein: the first oil inlet pipe and the second oil inlet pipe are respectively provided with an auxiliary oil pump, and the auxiliary oil pumps are electrically connected with the control module; before the monitoring work, the control module controls the first electromagnetic three-way valve, the second electromagnetic three-way valve and the third electromagnetic three-way valve to enable the first oil inlet pipe and the second oil inlet pipe to penetrate through the waste liquid chamber, and the auxiliary oil pump is started to be used for flushing the residual flushing liquid.
6. The online oil-gas humidity monitoring device for the cement lubricating station as claimed in claim 1, wherein: and the first oil inlet pipe and the second oil inlet pipe are respectively provided with a filter.
7. The online oil-gas humidity monitoring device for the cement lubricating station as claimed in claim 1, wherein: and the oil return pipe is provided with a one-way valve which faces the oil tank of the lubricating station.
8. The online oil-gas humidity monitoring device for the cement lubricating station as claimed in claim 1, wherein: one end of the interface column, which corresponds to the inner ball block, is provided with a temperature sensor, and the temperature sensor is connected with the control module.
9. The online oil-gas humidity monitoring device for the cement lubricating station as claimed in claim 1, wherein: the oil inlet of the third oil inlet pipe is arranged above the liquid level in the oil tank of the lubricating station, the third oil inlet pipe is provided with an air pump and is connected with a third dielectric constant module arranged in the monitoring module, and the third dielectric constant module is communicated with the oil tank of the lubricating station through a copper pipe with a one-way valve; the copper pipe and the third oil inlet pipe are arranged relatively far away from the oil tank of the lubricating station corresponding to the oil inlet pipe, the third dielectric constant module has the same structure as the first dielectric constant module, and a heating wire is arranged in the third dielectric constant module and used for heating the third dielectric constant module; and the control module is connected with and controls the third dielectric constant module, the air pump and the heating wire.
10. The online oil-gas humidity monitoring device for the cement lubricating station as claimed in claim 9, wherein: and the copper pipe is provided with a normally open electromagnetic switch valve connected with the control module.
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