CN113457270A - Oil filter based on PLC - Google Patents
Oil filter based on PLC Download PDFInfo
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- CN113457270A CN113457270A CN202110917309.7A CN202110917309A CN113457270A CN 113457270 A CN113457270 A CN 113457270A CN 202110917309 A CN202110917309 A CN 202110917309A CN 113457270 A CN113457270 A CN 113457270A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 63
- 238000010521 absorption reaction Methods 0.000 claims abstract description 19
- 239000002245 particle Substances 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 16
- 230000005611 electricity Effects 0.000 claims description 9
- 238000005070 sampling Methods 0.000 claims description 5
- 239000003921 oil Substances 0.000 abstract description 248
- 238000001914 filtration Methods 0.000 abstract description 25
- 239000010723 turbine oil Substances 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 8
- 238000000926 separation method Methods 0.000 description 8
- 238000004891 communication Methods 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- 230000005484 gravity Effects 0.000 description 3
- 238000004581 coalescence Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/003—Filters in combination with devices for the removal of liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/02—Combinations of filters of different kinds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
- B01D37/04—Controlling the filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
- B01D37/04—Controlling the filtration
- B01D37/043—Controlling the filtration by flow measuring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
- B01D37/04—Controlling the filtration
- B01D37/045—Controlling the filtration by level measuring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
- B01D37/04—Controlling the filtration
- B01D37/046—Controlling the filtration by pressure measuring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
- B01D37/04—Controlling the filtration
- B01D37/048—Controlling the filtration by temperature measuring
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The application provides an oil filter based on a PLC, which comprises a frame, wherein a pulley is arranged at the bottom of the frame; an oil inlet ball valve is arranged above the frame, the oil inlet ball valve is connected with an oil inlet end of an oil absorption filter, an oil outlet end of the oil absorption filter is connected with an oil inlet end of an oil pump, an oil outlet end of the oil pump is connected with an oil inlet end of a fine filter, an oil outlet end of the fine filter is connected with an oil inlet end of a three-way valve, and a first oil outlet end of the three-way valve is connected with an oil inlet end of a coalescer; the second oil outlet end of the three-way valve is connected with the oil inlet end of the oil outlet ball valve and the oil outlet end of the stop valve, and the oil inlet end of the stop valve is connected with the oil outlet end of the coalescer; the bottom of the coalescer is fixedly connected with a water storage tank; the side of coalescer is provided with automatically controlled cabinet, and automatically controlled cabinet is inside to be equipped with the PLC module. By adopting the device, the problems that the existing oil filter cannot realize online filtering during the operation of a unit, the structure is simple, the function is single, a large amount of time and energy of operators are consumed, and the efficiency of the turbine oil filtering process is low are solved.
Description
Technical Field
The application relates to the technical field of oil filter control, in particular to an oil filter based on a PLC.
Background
The oil filter is a filtering device for removing mechanical impurities, oxidation byproducts and moisture in impure oil by using the techniques of gravity, centrifugation, pressure, vacuum distillation, mass transfer and the like. The oil filter is mainly used for improving the cleanliness of oil for mechanical and electrical equipment, so that the oil filter can exert the best performance and prolong the service life of the equipment.
In general, turbine oil is used in a steam turbine or a hydro generator of a power plant to lubricate a lubrication system in mechanical equipment such as a turbine, a water turbine, and a generator bearing. When the quality of the turbine oil is detected, the turbine, the water turbine and the generator need to be stopped and the turbine oil needs to be discharged into an oil storage tank of an oil depot. And the plate type oil filter and the vacuum oil filter are connected with the oil storage tank to filter impurities and moisture in the turbine oil.
However, when the oil quality of the turbine oil is detected, unit equipment such as a turbine, a water turbine and a generator needs to be closed, and online filtering during the operation of the unit cannot be realized; the plate type oil filter and the vacuum oil filter are both composed of a motor oil pump set, a power supply system filtering system and a manual operation handle, and are simple in structure and single in function; in the turbine oil filtering process, a great deal of time and energy are consumed by operators, and the efficiency of the turbine oil filtering process is low.
Disclosure of Invention
The application provides an oil filter in PLC and control system thereof, its aim at has solved current oil filter and can't realize online filtration when the unit moves, simple structure, and the function singleness and consume a large amount of time and energy of operating personnel cause the inefficiency problem of turbine oil filtering process.
The application provides an oil filter based on a PLC, which comprises a frame, wherein pulleys are arranged at four angular positions of the bottom of the frame; an oil inlet ball valve is arranged above the frame, the oil outlet end of the oil inlet ball valve is connected with the oil inlet end of an oil absorption filter through a pipeline, the oil outlet end of the oil absorption filter is connected with the oil inlet end of an oil pump through a pipeline, the oil outlet end of the oil pump is connected with the oil inlet end of a fine filter through a pipeline, the oil outlet end of the fine filter is connected with the oil inlet end of a three-way valve, and the first oil outlet end of the three-way valve is connected with the oil inlet end of a coalescer through a pipeline; the second oil outlet end of the three-way valve is connected with the oil inlet end of an oil outlet ball valve and the oil outlet end of a stop valve through pipelines, and the oil inlet end of the stop valve is connected with the oil outlet end of the coalescer through a pipeline; the bottom of the coalescer is fixedly connected with a water storage tank, the water outlet end of the water storage tank is connected with the water inlet end of an electromagnetic drain valve through a pipeline, and the water outlet end of the electromagnetic drain valve is connected with the water inlet end of a manual drain valve through a pipeline; the side of coalescer is provided with automatically controlled cabinet, the inside PLC module that is equipped with of automatically controlled cabinet, automatically controlled cabinet is connected through the output electricity of external circuit with the power, the output of automatically controlled cabinet passes through the wire and is connected with the input electricity of PLC module, the output of PLC module pass through the wire with the input electricity of oil pump is connected.
Optionally, an oil absorption vacuum gauge is arranged between the oil absorption filter and the oil pump, and a system pressure gauge, a flow meter, a pressure sensor and a temperature sensor are sequentially arranged on a pipeline between the oil pump and the fine filter; the system pressure gauge is close to the oil pump.
Optionally, the pipeline between temperature sensor and the fine filter has the oil inlet end of first particle count appearance valve through the pipe connection, the oil outlet end of first particle count appearance valve has the oil inlet end of moisture measuring apparatu through the pipe connection, the oil outlet end of moisture measuring apparatu is connected with the oil inlet end of particle count appearance, the oil outlet end of particle count appearance has the oil inlet end of second particle count appearance valve through the pipe connection, the oil outlet end of second particle count appearance valve passes through the pipe connection the oil inlet end of ball valve that produces oil.
Optionally, the oil inlet end and the oil outlet end of the fine filter are connected with a fine filtering differential pressure signal transmitter; the oil inlet end and the oil outlet end of the coalescer are connected with a coalescer differential pressure signal transmitter.
Optionally, a liquid level meter is arranged outside the water storage tank, and two ends of the liquid level meter are respectively connected to the water storage tank through two liquid level meter valves; the bottom of the liquid level meter is connected with the manual drain valve through a pipeline; an oil-water interface instrument is arranged at the bottom of the water storage tank.
Optionally, a coalescer inlet pressure gauge is arranged on a pipeline between the oil inlet end of the coalescer and the three-way valve; and a coalescer outlet pressure gauge is arranged on a pipeline between the oil outlet end of the coalescer and the stop valve.
Optionally, the oil outlet end of the oil inlet ball valve is connected with a first oil inlet end of an emptying valve through a pipeline, and a second oil inlet end of the emptying valve is connected with a water outlet end of the water storage tank through a pipeline.
Optionally, the oil inlet end of the oil outlet ball valve is connected with a sampling valve, and the top of the coalescer is provided with an exhaust valve.
The application provides an oil filter based on a PLC, which comprises a frame, wherein pulleys are arranged at four angular positions of the bottom of the frame; an oil inlet ball valve is arranged above the frame and connected with an oil inlet end of an oil absorption filter through a pipeline, an oil outlet end of the oil absorption filter is connected with an oil inlet end of an oil pump through a pipeline, an oil outlet end of the oil pump is connected with an oil inlet end of a fine filter through a pipeline, an oil outlet end of the fine filter is connected with an oil inlet end of a three-way valve, and a first oil outlet end of the three-way valve is connected with an oil inlet end of a coalescer through a pipeline; the second oil outlet end of the three-way valve is connected with the oil inlet end of an oil outlet ball valve and the oil outlet end of a stop valve through pipelines, and the oil inlet end of the stop valve is connected with the oil outlet end of the coalescer through a pipeline; the bottom of the coalescer is fixedly connected with a water storage tank, the water outlet end of the water storage tank is connected with the water inlet end of an electromagnetic drain valve through a pipeline, and the water outlet end of the electromagnetic drain valve is connected with the water inlet end of a manual drain valve through a pipeline; the side of coalescer is provided with automatically controlled cabinet, the inside PLC module that is equipped with of automatically controlled cabinet, automatically controlled cabinet is connected through the output electricity of external circuit with the power, the output of automatically controlled cabinet passes through the wire and is connected with the input electricity of PLC module, the output of PLC module pass through the wire with the input electricity of oil pump is connected. By adopting the device, the problems that the existing oil filter cannot realize online filtering during the operation of a unit, the structure is simple, the function is single, a large amount of time and energy of operators are consumed, and the efficiency of the turbine oil filtering process is low are solved.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of a PLC-based oil filter provided in the section of the embodiment of the present application;
FIG. 2 is a schematic structural diagram of an oil filter based on a PLC according to an embodiment of the present application;
fig. 3 is a side view of a PLC-based oil filter provided in part in an embodiment of the present application.
Wherein, 1-a frame; 2-a pulley; 3-an oil inlet ball valve; 4-an oil absorption filter; 5-an oil pump; 6-fine filter; 7-a three-way valve; 8-a coalescer; 9-oil outlet ball valve; 10-a stop valve; 11-a water storage tank; 12-a solenoid water drain valve; 13-manual drain valve; 14-an electric control cabinet; 15-oil absorption vacuum gauge; 16-system pressure gauge; 17-a flow meter; 18-a pressure sensor; 19-a temperature sensor; 20-a first particle counter valve; 21-moisture meter; 22-particle counter; 23-a second particle counter valve; 24-fine filtering differential pressure signal transmitter; 25-a coalescer differential pressure transmitter; 26-a liquid level meter; 27-a level gauge valve; 28-oil-water interface instrument; 29-coalescer inlet pressure gauge; 30-coalescer outlet pressure gauge; 31-an evacuation valve; 32-a sampling valve; 33-exhaust valve.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As described in the background art, currently, when the quality of turbine oil is detected, it is necessary to stop the operation of the turbine, the hydraulic turbine and the generator and discharge the turbine oil to an oil storage tank of an oil depot. And the plate type oil filter and the vacuum oil filter are connected with the oil storage tank to filter impurities and moisture in the turbine oil. However, when the oil quality of the turbine oil is detected, unit equipment such as a turbine, a water turbine and a generator needs to be closed, and online filtering during the operation of the unit cannot be realized; the plate type oil filter and the vacuum oil filter are both composed of a motor oil pump set, a power supply system filtering system and a manual operation handle, and are simple in structure and single in function; in the turbine oil filtering process, a great deal of time and energy are consumed by operators, and the efficiency of the turbine oil filtering process is low.
In order to solve the above problem, embodiments of the present application provide a PLC-based oil filter, and the PLC-based oil filter provided by the present application is described below with specific embodiments and with reference to the accompanying drawings.
As shown in fig. 1, 2 and 3, the present application provides a PLC-based oil filter, which includes a frame 1, wherein pulleys 2 are disposed at four angular positions of the bottom of the frame 1; an oil inlet ball valve 3 is arranged above the frame 1, the oil inlet end of the oil inlet ball valve 3 is connected with the oil outlet end of an oil-using electrical device, the oil outlet end of the oil inlet ball valve 3 is connected with the oil inlet end of an oil absorption filter 4 through a pipeline, the oil outlet end of the oil absorption filter 4 is connected with the oil inlet end of an oil pump 5 through a pipeline, an oil absorption vacuum meter 15 is arranged between the oil absorption filter 4 and the oil pump 5, and a system pressure meter 16, a flowmeter 17, a pressure sensor 18 and a temperature sensor 19 are sequentially arranged on the pipeline between the oil pump 5 and a fine filter 6; a system pressure gauge 16 is located close to the oil pump 5. The motor of the oil pump 5 is connected with a frequency converter. Because the main loop control of motor is mostly hard start loop, and the initial impact to oil pump 5, filter core of start is great, so need adopt converter control oil pump 5's motor, it is little to the impact of oil pump 5 and filter core like this, control steadily, oil filter oil strain is efficient. The frequency setting of the frequency converter comes from the PLC module, and the frequency conversion control can be realized through PLC pulse increase and decrease.
The pipeline between the temperature sensor 19 and the fine filter 6 is connected with the oil inlet end of a first particle counter valve 20 through a pipeline, the oil outlet end of the first particle counter valve 20 is connected with the oil inlet end of a moisture measuring instrument 21 through a pipeline, and the oil outlet end of the moisture measuring instrument 21 is connected with the oil inlet end of a particle counter 22 and used for detecting the content of moisture in oil. The oil outlet end of the particle counter 22 is connected with the oil inlet end of a second particle counter valve 23 through a pipeline, and is used for detecting the size and the number of insoluble particles in oil. The oil outlet end of the second particle counter valve 23 is connected with the oil inlet end of the oil outlet ball valve 9 through a pipeline. The moisture meter 21 and the particle counter 22 can visually and digitally display the final oil quality in the oil filter to inform the operator of the current filtering effect of the turbine oil.
The oil outlet end of the oil pump 5 is connected with the oil inlet end of a fine filter 6 through a pipeline, and the oil outlet end of the fine filter 6 is connected with the oil inlet end of a three-way valve 7. Wherein, the oil inlet end and the oil outlet end of the fine filter 6 are connected with a fine filtering differential pressure signal transmitter 24, and a fine filtering filter core is arranged in the fine filter 6. After the fine filter element is blocked, the pressure difference between the oil inlet end and the oil outlet end of the fine filter 6 is increased, and when the pressure difference reaches the preset threshold value of the fine filter pressure difference signal transmitter 24, the fine filter pressure difference signal transmitter 24 can send out an alarm to remind a worker to replace the fine filter element. The first oil outlet end of the three-way valve 7 is connected with the oil inlet end of a coalescer 8 through a pipeline; the second oil outlet end of the three-way valve 7 is connected with the oil inlet end of an oil outlet ball valve 9 and the oil outlet end of a stop valve 10 through pipelines, wherein the oil outlet end of the oil outlet ball valve 9 is connected with the oil inlet end of the oil-using electrical equipment. The oil inlet end of the shutoff valve 10 is connected to the oil outlet end of the coalescer 8 by a pipe, preventing the oil in the fine filter 6 from entering the coalescer 8 from the oil outlet end of the coalescer 8. Similarly, the oil inlet and the oil outlet of the coalescer 8 are connected to a coalescer differential pressure transmitter 25, and a separation filter element and a coalescing filter element are installed in the coalescer 8. A coalescer inlet pressure gauge 29 is arranged on a pipeline between the oil inlet end of the coalescer 8 and the three-way valve 7; a coalescer outlet pressure gauge 30 is provided in the conduit between the oil outlet end of the coalescer 8 and the shut-off valve 10. When the separation filter element or the coalescence filter element is blocked, the pressure difference between the oil inlet end and the oil outlet end of the coalescer 8 is increased, and when the pressure difference reaches the preset threshold value of the coalescer differential pressure signal transmitter 25, the coalescer differential pressure signal transmitter 25 can send out an alarm to remind a worker to replace the separation filter element or the coalescence filter element. The coalescer inlet pressure gauge 29 and the coalescer outlet pressure gauge 30 allow the operator to visually see the oil pressure at the oil inlet and outlet of the coalescer 8.
The bottom of the coalescer 8 is fixedly connected with a water storage tank 11, and oil liquid passing through the coalescing filter element enters a separating filter element positioned above the coalescer filter element. Before this point, the larger water droplets in the oil have settled to the bottom in the coalescer 8 under the influence of gravity. But the water drops with smaller sizes are upward to the separation filter element along with the oil liquid under the action of inertia. The separation filter element is made of hydrophobic materials, and when oil passes through the separation filter element, water beads are blocked below the separation filter element. The water droplets that are trapped under the separating cartridge, after mutual accumulation, gradually increase in size and finally settle by gravity into the water storage tank 11 at the bottom of the coalescer 8.
The water outlet end of the water storage tank 11 is connected with the water inlet end of the electromagnetic drain valve 12 through a pipeline, the water outlet end of the electromagnetic drain valve 12 is connected with the water inlet end of the manual drain valve 13 through a pipeline, the water level of the manual drain valve can be measured by the liquid level meter 26, and when the water level reaches a set upper limit value, the electromagnetic drain valve 12 at the lower part of the water storage tank 11 is opened to drain accumulated water. A liquid level meter 26 is arranged on the outer side of the water storage tank 11, and two ends of the liquid level meter 26 are respectively connected to the water storage tank 11 through two liquid level meter valves 27; the bottom of the liquid level meter 26 is connected with a manual drain valve 13 through a pipeline; the bottom of the water storage tank 11 is provided with an oil-water interface instrument 28. The oil outlet end of the oil inlet ball valve 3 is connected with a first oil inlet end of an emptying valve 31 through a pipeline, a second oil inlet end of the emptying valve 31 is connected with a water outlet end of a water storage tank 11 through a pipeline, when the oil filter provided by the application needs to be maintained or carried, oil in the coalescer 8 can be emptied through the emptying valve 31, the oil still exists in the sealing end sealing cavity and the coalescing filter element inner cavity at the moment, and all the oil in the oil filter can be completely discharged by adopting an emptying mode. The oil inlet end of the oil outlet ball valve 9 is connected with a sampling valve 32, a small part of oil can be obtained from the sampling valve 32, and the water content of the oil and the amount of impurities are detected to reach the standard. The top of the coalescer 8 is provided with a vent valve 33, and the oil may generate bubbles during filtration, and the bubbles are collected and separated from the oil and can be discharged out of the coalescer 8 through the vent valve 33.
An electric control cabinet 14 is arranged on the side surface of the coalescer 8, a PLC module is arranged in the electric control cabinet 14, as shown in fig. 3, the PLC module can select Siemens PLC-S200 or the like with the function, and collects external switching value control signals (differential pressure, oil pump fault, start-stop buttons and the like) and analog quantity signals (pressure, temperature, flow and oil level); the control output is expanded through an intermediate relay, and the object operations such as an electromagnetic valve, a frequency converter and the like are carried out. Siemens PLC-S200 is equipped with serial communication (the human-computer interface is connected with PLC by adopting a serial Modbus communication protocol or other industrial communication protocols and used for displaying various acquisition data and writing of control parameters of PLC), and can realize data processing of the acquisition data and data interaction with the human-computer interface. The human-computer interface is respectively an operation interface, a setting interface, an alarm interface and the like. On the interface, the system running state and fault information can be displayed, running and control parameters can be set, and mode switching can also be carried out. The electric control cabinet 14 is connected with the pressure sensor 18 and the temperature sensor 19 through an external electric loop, the sensor signal input and other signal inputs are connected with the input end of the PLC module through wires, and the output end of the PLC module is connected with the input end of the oil pump 5 through a relay, a wire and a contactor. And the communication port of the PLC module is connected with the human-computer interface communication port through a communication cable.
The electric control cabinet 14 is electrically connected with the output end of the power supply through an external circuit, the output end of the electric control cabinet 14 is electrically connected with the input end of the PLC module through a wire, and the output end of the PLC module is electrically connected with the input end of the oil pump 5 through a wire.
When the device is used, the oil inlet ball valve 3 is opened, the switch of the electric control cabinet 14 is opened, the oil pump 5 starts to work, oil passes through the oil inlet ball valve 3 and passes through the oil absorption filter 4 to primarily filter particles in the oil, the oil after primary filtering enters the fine filter 6, the fine filter screen arranged in the fine filter 6 further filters impurities in the oil, a magnetic layer can be arranged in the fine filter 6 to adsorb metal particles in the oil, the oil after impurity removal enters the oil inlet chamber in the coalescer 8 through a pipeline, the oil in the oil inlet chamber of the coalescer 8 enters the coalescing filter element to primarily filter water, the oil after primary filtering enters the transition chamber of the coalescer 8 to be filtered again through the separation filter element, the oil after primary filtering enters the oil outlet chamber of the coalescer 8 and then is conveyed into the oil outlet ball valve 9 through a pipeline, the pure oil after the oil outlet ball valve 9 is opened is conveyed into the oil filter, the water produced by the filtering of the coalescing filter element and the separating filter element drops into the water storage tank 11 at the bottom end of the coalescer 8. Whether the pipelines of the oil filter normally convey oil can be judged by looking at the oil suction vacuum gauge 15, the system pressure gauge 16, the coalescer inlet pressure gauge 29 and the coalescer outlet pressure gauge 30 in the whole working process of the oil filter.
The present application has been described in detail with reference to specific embodiments and illustrative examples, but the description is not intended to limit the application. Those skilled in the art will appreciate that various equivalent substitutions, modifications or improvements may be made to the presently disclosed embodiments and implementations thereof without departing from the spirit and scope of the present disclosure, and these fall within the scope of the present disclosure. The protection scope of this application is subject to the appended claims.
Claims (8)
1. The oil filter based on the PLC is characterized by comprising a frame (1), wherein pulleys (2) are arranged at four angular positions of the bottom of the frame (1); an oil inlet ball valve (3) is arranged above the frame (1), the oil outlet end of the oil inlet ball valve (3) is connected with the oil inlet end of an oil absorption filter (4) through a pipeline, the oil outlet end of the oil absorption filter (4) is connected with the oil inlet end of an oil pump (5) through a pipeline, the oil outlet end of the oil pump (5) is connected with the oil inlet end of a fine filter (6) through a pipeline, the oil outlet end of the fine filter (6) is connected with the oil inlet end of a three-way valve (7), and the first oil outlet end of the three-way valve (7) is connected with the oil inlet end of a coalescer (8) through a pipeline; the second oil outlet end of the three-way valve (7) is connected with the oil inlet end of an oil outlet ball valve (9) and the oil outlet end of a stop valve (10) through pipelines, and the oil inlet end of the stop valve (10) is connected with the oil outlet end of the coalescer (8) through pipelines; the bottom of the coalescer (8) is fixedly connected with a water storage tank (11), the water outlet end of the water storage tank (11) is connected with the water inlet end of an electromagnetic drain valve (12) through a pipeline, and the water outlet end of the electromagnetic drain valve (12) is connected with the water inlet end of a manual drain valve (13) through a pipeline; the side of coalescer (8) is provided with automatically controlled cabinet (14), the inside PLC module that is equipped with of automatically controlled cabinet (14), automatically controlled cabinet (14) are connected through the output electricity of external circuit with the power, the output of automatically controlled cabinet (14) passes through the wire and is connected with the input electricity of PLC module, the output of PLC module pass through the wire with the input electricity of oil pump (5) is connected.
2. The PLC-based oil filter is characterized in that an oil absorption vacuum gauge (15) is arranged between the oil absorption filter (4) and the oil pump (5), and a system pressure gauge (16), a flow meter (17), a pressure sensor (18) and a temperature sensor (19) are sequentially arranged on a pipeline between the oil pump (5) and the fine filter (6); the system pressure gauge (16) is close to the oil pump (5).
3. The PLC-based oil filter machine according to claim 2, characterized in that a pipeline between the temperature sensor (19) and the fine filter (6) is connected with an oil inlet end of a first particle counter valve (20) through a pipeline, an oil outlet end of the first particle counter valve (20) is connected with an oil inlet end of a moisture meter (21) through a pipeline, an oil outlet end of the moisture meter (21) is connected with an oil inlet end of a particle counter (22), an oil outlet end of the particle counter (22) is connected with an oil inlet end of a second particle counter valve (23) through a pipeline, and an oil outlet end of the second particle counter valve (23) is connected with an oil inlet end of the oil outlet ball valve (9) through a pipeline.
4. The PLC-based oil filter machine as claimed in claim 1, wherein the oil inlet end and the oil outlet end of the fine filter (6) are connected with a fine filter differential pressure transmitter (24); the oil inlet end and the oil outlet end of the coalescer (8) are connected with a coalescer differential pressure signal transmitter (25).
5. The PLC-based oil filter machine as claimed in claim 1, characterized in that a liquid level meter (26) is arranged outside the water storage tank (11), and two ends of the liquid level meter (26) are respectively connected to the water storage tank (11) through two liquid level meter valves (27); the bottom of the liquid level meter (26) is connected with the manual drain valve (13) through a pipeline; an oil-water interface instrument (28) is arranged at the bottom of the water storage tank (11).
6. The PLC-based oil filter according to claim 1, characterized in that a coalescer inlet pressure gauge (29) is provided on the pipe between the oil inlet of the coalescer (8) and the three-way valve (7); a coalescer outlet pressure gauge (30) is arranged on a pipeline between the oil outlet end of the coalescer (8) and the stop valve (10).
7. The PLC-based oil filter machine as claimed in claim 1, wherein the oil outlet end of the oil inlet ball valve (3) is connected with a first oil inlet end of an emptying valve (31) through a pipeline, and a second oil inlet end of the emptying valve (31) is connected with the water outlet end of the water storage tank (11) through a pipeline.
8. The PLC-based oil filter according to claim 1, characterized in that a sampling valve (32) is connected to the oil inlet end of the oil outlet ball valve (9), and a vent valve (33) is arranged at the top of the coalescer (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110917309.7A CN113457270A (en) | 2021-08-11 | 2021-08-11 | Oil filter based on PLC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110917309.7A CN113457270A (en) | 2021-08-11 | 2021-08-11 | Oil filter based on PLC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113457270A true CN113457270A (en) | 2021-10-01 |
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| CN202110917309.7A Pending CN113457270A (en) | 2021-08-11 | 2021-08-11 | Oil filter based on PLC |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115653975A (en) * | 2022-12-12 | 2023-01-31 | 常州液压成套设备厂有限公司 | Hydraulic system oil intelligent purification device with online monitoring function |
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| JP2000161039A (en) * | 1998-11-27 | 2000-06-13 | Kubota Corp | Engine lubricating oil purification device |
| CN202724759U (en) * | 2012-08-21 | 2013-02-13 | 四川高精净化设备有限公司 | Turbine oil purifying device |
| CN102979651A (en) * | 2012-11-08 | 2013-03-20 | 重庆长平机械厂 | Oil purifier for oil used in anti-explosion boat |
| CN104801103A (en) * | 2015-05-13 | 2015-07-29 | 重庆万美机电有限公司 | Coalescence vacuum oil purifier |
| CN206138795U (en) * | 2016-08-29 | 2017-05-03 | 新乡市日欣净化设备有限公司 | Fuel absolute oil machine of dividing for naval vessel |
| CN208742085U (en) * | 2018-06-01 | 2019-04-16 | 国电大渡河检修安装有限公司 | A kind of turbine oil precision oil filter |
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000161039A (en) * | 1998-11-27 | 2000-06-13 | Kubota Corp | Engine lubricating oil purification device |
| CN202724759U (en) * | 2012-08-21 | 2013-02-13 | 四川高精净化设备有限公司 | Turbine oil purifying device |
| CN102979651A (en) * | 2012-11-08 | 2013-03-20 | 重庆长平机械厂 | Oil purifier for oil used in anti-explosion boat |
| CN104801103A (en) * | 2015-05-13 | 2015-07-29 | 重庆万美机电有限公司 | Coalescence vacuum oil purifier |
| CN206138795U (en) * | 2016-08-29 | 2017-05-03 | 新乡市日欣净化设备有限公司 | Fuel absolute oil machine of dividing for naval vessel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115653975A (en) * | 2022-12-12 | 2023-01-31 | 常州液压成套设备厂有限公司 | Hydraulic system oil intelligent purification device with online monitoring function |
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