CN110360034A - Diesel engine constant oil supply pressure system - Google Patents

Diesel engine constant oil supply pressure system Download PDF

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Publication number
CN110360034A
CN110360034A CN201910718014.XA CN201910718014A CN110360034A CN 110360034 A CN110360034 A CN 110360034A CN 201910718014 A CN201910718014 A CN 201910718014A CN 110360034 A CN110360034 A CN 110360034A
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CN
China
Prior art keywords
oil
valve
main
branch
flow sensor
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Granted
Application number
CN201910718014.XA
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Chinese (zh)
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CN110360034B (en
Inventor
罗金光
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Shenzhen Xitong Automation Equipment Co Ltd
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Shenzhen Xitong Automation Equipment Co Ltd
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Priority to CN201910718014.XA priority Critical patent/CN110360034B/en
Publication of CN110360034A publication Critical patent/CN110360034A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0011Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0011Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
    • F02M37/0023Valves in the fuel supply and return system
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0011Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
    • F02M37/0023Valves in the fuel supply and return system
    • F02M37/0029Pressure regulator in the low pressure fuel system
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0047Layout or arrangement of systems for feeding fuel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0047Layout or arrangement of systems for feeding fuel
    • F02M37/0052Details on the fuel return circuit; Arrangement of pressure regulators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04Feeding by means of driven pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)

Abstract

The present invention provides a kind of diesel engine constant oil supply pressure system.The diesel engine constant oil supply pressure system includes diesel fuel tank;System control cabinet, the system control cabinet are connected with the diesel fuel tank;One end of main oil pipeline, the main oil pipeline is connected with the diesel fuel tank;High-precision filter, one end of the high-precision filter are connected with the other end of the main oil pipeline;One end of main transformer frequency oil transfer pump, the main transformer frequency oil transfer pump is connected with the other end of the high-precision filter;One end of standby variable frequency oil transfer pump, the standby variable frequency oil transfer pump is connected with the other end of the high-precision filter.Diesel engine constant oil supply pressure system provided by the invention have it is easy to use, easy to operate, exempt to have ensured operator's personal safety while frequently shutting down repairing, while sustainable to diesel engine constant pressure oil supply, the advantages of greatly improving working efficiency.

Description

Diesel engine constant oil supply pressure system
Technical field
The present invention relates to technical field of fluid delivery more particularly to a kind of diesel engine constant oil supply pressure systems.
Background technique
Diesel engine is essential equipment on oil field fracturing vehicle, has oil in fuel tank on vehicle in order not to allow when work, with Exempt to bring security risk, while when this set diesel engine constant oil supply pressure system can be cut automatically when something goes wrong without disassembly oil pipe Change fuel tank fuel feeding into, then being the most important thing for the constant pressure oil supply of diesel engine, existing constant pressure oil supply mode has fuel tank Oil feeding method.
Fuel tank oil feeding method: after equipment downtime, by manually dismantling fuel tank filling lid, diesel oil is filled into fuel tank Interior, after the completion of filling, personnel are withdrawn, diesel engine starting, and diesel oil is supplied by carrying fueller on vehicle toward diesel engine in fuel tank Oil after being finished, needs to shut down, and carries out repairing toward fuel tank again.Although this method is simple, according to diesel engine fuel consumption and fuel oil Tankage is it is easily concluded that diesel engine work needs to shut down for 2-3 hours or so, from artificial toward fuel tank progress repairing, extreme influence work Make efficiency, and there are security risks for artificial execute-in-place.
Therefore, it is necessary to provide a kind of new diesel engine constant oil supply pressure system solution above-mentioned technical problem.
Summary of the invention
The technical problem to be solved by the present invention is to provide it is a kind of it is easy to use, easy to operate, exempt from frequently to shut down the same of repairing When ensured operator's personal safety, while it is sustainable give diesel engine constant pressure oil supply, greatly improve the diesel engine of working efficiency Constant oil supply pressure system.
In order to solve the above technical problems, diesel engine constant oil supply pressure system provided by the invention includes: diesel fuel tank;System control Cabinet, the system control cabinet are connected with the diesel fuel tank;Main oil pipeline, one end of the main oil pipeline and the diesel oil Tank is connected;High-precision filter, one end of the high-precision filter are connected with the other end of the main oil pipeline;It is main One end of frequency conversion oil transfer pump, the main transformer frequency oil transfer pump is connected with the other end of the high-precision filter;Standby variable frequency is defeated One end of oil pump, the standby variable frequency oil transfer pump is connected with the other end of the high-precision filter;Accumulator, the accumulation of energy Device is connected with the other end of the other end of the main transformer frequency oil transfer pump and the standby variable frequency oil transfer pump;Overflow valve, it is described to overflow Stream valve is connected with the other end of the other end of the main transformer frequency oil transfer pump and the standby variable frequency oil transfer pump;The electronic decompression of main road One end of valve, the electronic pressure reducing valve of main road is connected with the overflow valve;Main oil transportation road flow sensor, the main oil transportation road One end of flow sensor is connected with the other end of the electronic pressure reducing valve of the main road;Main road check valve, the main road check valve One end be connected with the other end of the main oil transportation road flow sensor;Multiple branch roads systems, multiple branch roads systems One end is connected with the other end of the main road check valve;Main oil return line flow sensor, the main oil return line flow sensor One end be connected with the other end of the branch roads system;Frequency conversion scavenge oil pump, one end of the frequency conversion scavenge oil pump and the master return The other end of oil circuit flow sensor is connected, and the other end of the frequency conversion scavenge oil pump passes through main oil returning tube and the diesel fuel tank It is connected.
Preferably, the both ends of the main transformer frequency oil transfer pump are respectively connected with the first ball valve, and the two of the standby variable frequency oil transfer pump End is respectively connected with the second ball valve, and the frequency conversion scavenge oil pump is equipped with the 4th ball valve, institute with the main oil return line flow sensor It states and third ball valve is installed between the 4th ball valve and the other end of the frequency conversion scavenge oil pump, the main transformer frequency oil transfer pump is far from high-precision The one end for spending filter is connected with the first check valve, and first check valve is connected with corresponding first ball valve, described standby Second one-way valve, the second one-way valve and corresponding are connected with far from one end of high-precision filter with frequency conversion oil transfer pump Two ball valves are connected.
Preferably, the 7th ball valve is connected between the main oil transportation road flow sensor and the main road check valve, it is described 5th ball valve, the 5th ball valve and the 7th ball valve are installed between main oil return line flow sensor and the branch roads system On be mounted on main road pressure sensor.
Preferably, the system control cabinet is equipped with bus, and the system control cabinet passes through the bus and the main transformer Frequency oil transfer pump, the standby variable frequency oil transfer pump, the frequency conversion scavenge oil pump, the main oil transportation road flow sensor, main road pressure pass Sensor is connected with the main oil return line flow sensor.
Preferably, the 6th ball valve is installed, on the 6th ball valve between the main road check valve and the branch roads system Equipped with line stripper.
Preferably, the branch roads system includes multiple branch check valves, and one end of multiple branch check valves is and institute The other end for stating main road check valve is connected, and the other end of the branch check valve is connected with one end of y-type filter, the Y The other end of type filter is connected with one end of the electronic pressure reducing valve of branch, the other end of the electronic pressure reducing valve of branch be connected with The other end of one end of branch oil transportation flow sensor, the branch oil transportation flow sensor is connected with the one of branch way solenoid valve End, the other end of the branch way solenoid valve are connected with one end and the oil transportation electric T-shaped valve of exhaust solenoid valve, and the oil transportation is electronic It is connected with diesel engine on triple valve, oil return electric T-shaped valve is connected on the diesel engine, is connected on the oil return electric T-shaped valve Be connected to branch return flow sensor, multiple branch return flow sensors with the main oil return line flow sensor phase Connection, the other end of the branch way solenoid valve are equipped with the 8th ball valve, are equipped with branch pressure sensor on the 8th ball valve.
Preferably, fuel tank, the fuel tank and the oil transportation electric three passes are connected on the oil return electric T-shaped valve Valve is connected.
Preferably, the electronic pressure reducing valve of the branch, branch oil transportation flow sensor, branch way solenoid valve, branch pressure sensing It is connected on device, exhaust solenoid valve, oil transportation electric T-shaped valve, oil return electric T-shaped valve and branch return flow sensor same Branch control cabinet.
Preferably, the branch control cabinet is equipped with optical fiber cable, and the optical fiber cable is connected with system control cabinet.
Preferably, the diesel fuel tank is equipped with liquid level sensor, and the liquid level sensor passes through bus and the system control Cabinet processed is connected.
Compared with the relevant technologies, diesel engine constant oil supply pressure system provided by the invention is had the following beneficial effects:
The present invention provides a kind of diesel engine constant oil supply pressure system, can realize separate unit, more diesel oil at any time according to site requirement Machine constant pressure oil supply, in the diesel oil oil return to the oil storage tank being not used, on the system control cabinet remotely control to required Diesel engine progress start and stop fuel feeding could be mended after avoiding operator that scene is gone to operate and need to shut down toward the fuel tank Oil had both avoided frequently shutting down repairing while having ensured that operator's person is pacified under the premise of comparing existing constant pressure oil supply mode Entirely, and diesel engine constant pressure oil supply can be persistently given, greatly improves working efficiency.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of preferred embodiment of diesel engine constant oil supply pressure system provided by the invention;
Fig. 2 is the structural schematic diagram of part A shown in FIG. 1.
Figure label: 1, main oil pipeline, 2, high-precision filter, 3, main oil returning tube, the 401, first ball valve, 402, Two ball valves, 403, third ball valve, the 404, the 4th ball valve, the 405, the 5th ball valve, the 406, the 6th ball valve, the 407, the 7th ball valve, 408, 8th ball valve, 5, main transformer frequency oil transfer pump, 6, standby variable frequency oil transfer pump, 7, frequency conversion scavenge oil pump, 8, accumulator, 9, overflow valve, 10, master The electronic pressure reducing valve in road, 11, main oil transportation road flow sensor, 12, main road pressure sensor, 13, main road check valve, 14, main oil return Road flow sensor, 15, system control cabinet, 16, branch roads system, 161, branch check valve, 162, y-type filter, 163, branch Electronic pressure reducing valve, 164, branch oil transportation flow sensor, 165, branch way solenoid valve, 166, branch pressure sensor, 167, exhaust Solenoid valve, 168, oil transportation electric T-shaped valve, 169, oil return electric T-shaped valve, 17, diesel engine, 171, branch return flow sensing Device, 172, branch control cabinet, 18, fuel tank, 19, optical fiber cable, 20, bus, 21, liquid level sensor, 22, diesel fuel tank, 23, pipeline purging Device.
Specific embodiment
The invention will be further described with embodiment with reference to the accompanying drawing.
Please refer to Fig. 1 and Fig. 2, wherein Fig. 1 is that one kind of diesel engine constant oil supply pressure system provided by the invention is preferable The structural schematic diagram of embodiment;Fig. 2 is the structural schematic diagram of part A shown in FIG. 1.Diesel engine constant oil supply pressure system includes: bavin Oil tank 22;System control cabinet 15, the system control cabinet 15 are connected with the diesel fuel tank 22;Main oil pipeline 1, the master are defeated One end of oil-piping 1 is connected with the diesel fuel tank 22;High-precision filter 2, one end of the high-precision filter 2 with it is described The other end of main oil pipeline 1 is connected;Main transformer frequency oil transfer pump 5, one end of the main transformer frequency oil transfer pump 5 high-precision are spent with described The other end of filter 2 is connected;Standby variable frequency oil transfer pump 6, one end of the standby variable frequency oil transfer pump 6 and the high-precision filtration The other end of device 2 is connected;Accumulator 8, the other end and the spare change of the accumulator 8 with the main transformer frequency oil transfer pump 5 The other end of frequency oil transfer pump 6 is connected;Overflow valve 9, the other end of the overflow valve 9 and the main transformer frequency oil transfer pump 5 and described The other end of standby variable frequency oil transfer pump 6 is connected;The electronic pressure reducing valve 10 of main road, one end of the electronic pressure reducing valve 10 of main road and institute Overflow valve 9 is stated to be connected;Main oil transportation road flow sensor 11, one end of the main oil transportation road flow sensor 11 and the main road The other end of electronic pressure reducing valve 10 is connected;Main road check valve 13, one end of the main road check valve 13 and the main oil transportation road The other end of flow sensor 11 is connected;Multiple branch roads systems 16, one end of multiple branch roads systems 16 and the main road The other end of check valve 13 is connected;Main oil return line flow sensor 14, one end of the main oil return line flow sensor 14 with The other end of the branch roads system 16 is connected;Frequency conversion scavenge oil pump 7, one end of the frequency conversion scavenge oil pump 7 and the main oil return line The other end of flow sensor 14 is connected, and the other end of the frequency conversion scavenge oil pump 7 passes through main oil returning tube 3 and the diesel fuel tank 22 are connected.
In the present embodiment, the quantity of the branch roads system 16 can be 20, it will be understood that in other embodiments, The quantity of the branch roads system 16 can be voluntarily adjusted according to the actual situation.
The both ends of the main transformer frequency oil transfer pump 5 are respectively connected with the first ball valve 401, the both ends of the standby variable frequency oil transfer pump 6 It is respectively connected with the second ball valve 402, the frequency conversion scavenge oil pump 7 is equipped with the 4th ball valve with the main oil return line flow sensor 14 404, third ball valve 403 is installed between the 4th ball valve 404 and the other end of the frequency conversion scavenge oil pump 7.
It is connected with the 7th ball valve 407 between the main oil transportation road flow sensor 11 and the main road check valve 13, it is described 5th ball valve 405, the 5th ball valve 405 and institute are installed between main oil return line flow sensor 14 and the branch roads system 16 It states and is mounted on main road pressure sensor 12 on the 7th ball valve 407.
The system control cabinet 15 is equipped with bus 20, and the system control cabinet 15 passes through the bus 20 and the main transformer Frequency oil transfer pump 5, the standby variable frequency oil transfer pump 6, the frequency conversion scavenge oil pump 7, the main oil transportation road flow sensor 11, main road pressure Force snesor 12 is connected with the main oil return line flow sensor 14.
6th ball valve 406, the 6th ball valve 406 are installed between the main road check valve 13 and the branch roads system 16 It is equipped with line stripper 23.
The branch roads system 16 includes multiple branch check valves 161, and one end of multiple branch check valves 161 is and institute The other end for stating main road check valve 13 is connected, and the other end of the branch check valve 161 is connected with the one of y-type filter 162 End, the other end of the y-type filter 162 are connected with one end of the electronic pressure reducing valve 163 of branch, the electronic pressure reducing valve of branch 163 other end and the one end for being connected with branch oil transportation flow sensor 164, the branch oil transportation flow sensor 164 it is another One end is connected with one end of branch way solenoid valve 165, and the other end of the branch way solenoid valve 165 is connected with exhaust solenoid valve 167 One end and oil transportation electric T-shaped valve 168, are connected with diesel engine 17 on the oil transportation electric T-shaped valve 168, on the diesel engine 17 It is connected with oil return electric T-shaped valve 169, branch return flow sensor 171 is connected on the oil return electric T-shaped valve 169, it is more A branch return flow sensor 171 is connected with the main oil return line flow sensor 14, the branch way solenoid valve 165 other end is equipped with the 8th ball valve 408, is equipped with branch pressure sensor 166 on the 8th ball valve 408.
Fuel tank 18, the fuel tank 18 and the oil transportation electric three passes are connected on the oil return electric T-shaped valve 169 Valve 168 is connected.
The electronic pressure reducing valve 163 of the branch, branch oil transportation flow sensor 164, branch way solenoid valve 165, branch pressure pass Sensor 166, exhaust solenoid valve 167, oil transportation electric T-shaped valve 168, oil return electric T-shaped valve 169 and branch return flow sensor The same branch control cabinet 172 is connected on 171.
The branch control cabinet 172 is equipped with optical fiber cable 19, and the optical fiber cable 19 is connected with system control cabinet 15.
In the present embodiment, system control cabinet 15 is communicated using optical fiber cable 19 with branch control cabinet 172, so that control is every One branch roads system 16 can also use between system control cabinet 15 and branch control cabinet 172 with lower section in other embodiments Formula:
1), system control cabinet 15 and branch control cabinet 172 use wireless communication mode, and not needing any cable also can be by being Control cabinet 15 of uniting controls each branch roads system 16;
2), system control cabinet 15 is attached with electric elements in every branch roads system 16 by cable, thus to each Branch roads system 16 is controlled.
The diesel fuel tank 22 is equipped with liquid level sensor 21, and the liquid level sensor 21 passes through bus 20 and the system control Cabinet 15 processed is connected.
The working principle of diesel engine constant oil supply pressure system provided by the invention is as follows:
When work, main variable-frequency delivery pump 5 is controlled by system control cabinet 15 or standby variable frequency conveying 6 carries out start and stop, then is controlled The branch roads system 16 starting is made, frequency converter is passed through by 15 detection data of control system control cabinet by main road pressure sensor 12 It controls main variable-frequency delivery pump 5 or standby variable frequency delivery pump 6 adjusts revolving speed, simultaneity factor control cabinet 15 passes through PID arithmetic, automatic root Change according to pressure size and adjust the electronic pressure reducing valve 10 of main road, and overflow valve 9 is opened also by mechanical spring when pressure is excessive, Diesel oil is flowed away by overflow port and carries out pressure release;
When system control cabinet 15 by main road pressure sensor 12 detect the pressure on major loop in a certain value, automatically Start frequency conversion scavenge oil pump 7, the diesel oil of oil return line is pumped into oil storage tank 22;
Branch control cabinet 172 is by the data of detection branch pressure sensor 166, when fuel feeding, branch pressure sensor 166 When numerical value change, the valve opening of the electronic pressure reducing valve 163 of branch is automatically adjusted by PID arithmetic by branch control cabinet 172, is being pressed Branch way solenoid valve 165 is automatically closed when being more than a certain numerical value in power, and closes the electronic pressure reducing valve 163 of branch, and pressure is lower than the number It is automatic preferential to open branch way solenoid valve 165 after value, the electronic pressure reducing valve 163 of branch is then opened, by detecting pressure, allows branch Electronic pressure reducing valve 163 rests on a certain position adjust automatically pressure;
When diesel engine 17 is exhausted, diesel engine 17 does not work, and controls exhaust solenoid valve 167 by system control cabinet 15 It opens, branch oil transportation electric T-shaped valve 168, branch oil return triple valve 169 automatically switch into fuel tank fuel feeding mode;
When the diesel engine constant oil supply pressure system when something goes wrong, can pass through system control cabinet 15 control oil transportation electric T-shaped valve 168, oil return triple valve 169 switches to fuel tank fuel feeding mode.
Compared with the relevant technologies, diesel engine constant oil supply pressure system provided by the invention is had the following beneficial effects:
The present invention provides a kind of diesel engine constant oil supply pressure system, can realize separate unit, more diesel oil at any time according to site requirement Machine constant pressure oil supply, in the diesel oil oil return being not used to the oil storage tank 22, remotely control is given on the system control cabinet 15 Required diesel engine 17 could be toward the combustion after carrying out start and stop fuel feeding, avoiding operator that scene is gone to operate and need to shut down 18 repairing of fuel tank had both avoided frequently shutting down repairing while having ensured operator under the premise of comparing existing constant pressure oil supply mode Personal safety, and diesel engine constant pressure oil supply can be persistently given, greatly improve working efficiency.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills Art field, is included within the scope of the present invention.

Claims (10)

1. a kind of diesel engine constant oil supply pressure system characterized by comprising
Diesel fuel tank;
System control cabinet, the system control cabinet are connected with the diesel fuel tank;
One end of main oil pipeline, the main oil pipeline is connected with the diesel fuel tank;
High-precision filter, one end of the high-precision filter are connected with the other end of the main oil pipeline;
One end of main transformer frequency oil transfer pump, the main transformer frequency oil transfer pump is connected with the other end of the high-precision filter;
One end of standby variable frequency oil transfer pump, the standby variable frequency oil transfer pump is connected with the other end of the high-precision filter;
Accumulator, the accumulator and the other end of the main transformer frequency oil transfer pump and the other end phase of the standby variable frequency oil transfer pump Connection;
Overflow valve, the overflow valve and the other end of the main transformer frequency oil transfer pump and the other end phase of the standby variable frequency oil transfer pump Connection;
One end of the electronic pressure reducing valve of main road, the electronic pressure reducing valve of main road is connected with the overflow valve;
Main oil transportation road flow sensor, one end of the main oil transportation road flow sensor are another with the electronic pressure reducing valve of the main road End is connected;
Main road check valve, one end of the main road check valve are connected with the other end of the main oil transportation road flow sensor;
Multiple branch roads systems, one end of multiple branch roads systems are connected with the other end of the main road check valve;
One end of main oil return line flow sensor, the main oil return line flow sensor is connected with the other end of the branch roads system It connects;
Frequency conversion scavenge oil pump, one end of the frequency conversion scavenge oil pump are connected with the other end of the main oil return line flow sensor, institute The other end for stating frequency conversion scavenge oil pump is connected by main oil returning tube with the diesel fuel tank.
2. diesel engine constant oil supply pressure system according to claim 1, which is characterized in that the both ends of the main transformer frequency oil transfer pump It is respectively connected with the first ball valve, the both ends of the standby variable frequency oil transfer pump are respectively connected with the second ball valve, the frequency conversion scavenge oil pump and institute The 4th ball valve that is equipped with for stating main oil return line flow sensor, between the 4th ball valve and the other end of the frequency conversion scavenge oil pump Third ball valve is installed, the main transformer frequency oil transfer pump is connected with the first check valve far from one end of high-precision filter, and described One check valve is connected with corresponding first ball valve, and the standby variable frequency oil transfer pump is connected far from one end of high-precision filter There is second one-way valve, the second one-way valve is connected with corresponding second ball valve.
3. diesel engine constant oil supply pressure system according to claim 1, which is characterized in that the main oil transportation road flow sensor It is connected with the 7th ball valve between the main road check valve, pacifies between the main oil return line flow sensor and the branch roads system Equipped with the 5th ball valve, main road pressure sensor is mounted on the 5th ball valve and the 7th ball valve.
4. diesel engine constant oil supply pressure system according to claim 1, which is characterized in that the system control cabinet is equipped with total Line, the system control cabinet are returned by the bus and the main transformer frequency oil transfer pump, the standby variable frequency oil transfer pump, the frequency conversion Oil pump, the main oil transportation road flow sensor, main road pressure sensor are connected with the main oil return line flow sensor.
5. diesel engine constant oil supply pressure system according to claim 1, which is characterized in that the main road check valve and the branch 6th ball valve is installed, the 6th ball valve is equipped with line stripper between the system of road.
6. diesel engine constant oil supply pressure system according to claim 1, which is characterized in that the branch roads system includes multiple One end of road check valve, multiple branch check valves is connected with the other end of the main road check valve, the branch list One end of y-type filter is connected with to the other end of valve, the other end of the y-type filter is connected with the electronic pressure reducing valve of branch One end, the other end of the electronic pressure reducing valve of branch and the one end for being connected with branch oil transportation flow sensor, the branch oil transportation The other end of flow sensor is connected with one end of branch way solenoid valve, and the other end of the branch way solenoid valve is connected with exhaust electromagnetism One end of valve and oil transportation electric T-shaped valve are connected with diesel engine on the oil transportation electric T-shaped valve, are connected on the diesel engine Oil return electric T-shaped valve is connected with branch return flow sensor, multiple branch oil returns on the oil return electric T-shaped valve Flow sensor is connected with the main oil return line flow sensor, and the other end of the branch way solenoid valve is equipped with the 8th ball Valve is equipped with branch pressure sensor on the 8th ball valve.
7. diesel engine constant oil supply pressure system according to claim 6, which is characterized in that connect on the oil return electric T-shaped valve It is connected to fuel tank, the fuel tank is connected with the oil transportation electric T-shaped valve.
8. diesel engine constant oil supply pressure system according to claim 6, which is characterized in that the electronic pressure reducing valve of the branch, branch Road oil transportation flow sensor, branch way solenoid valve, branch pressure sensor, exhaust solenoid valve, oil transportation electric T-shaped valve, oil return are electronic The same branch control cabinet is connected on triple valve and branch return flow sensor.
9. diesel engine constant oil supply pressure system according to claim 8, which is characterized in that the branch control cabinet is equipped with light Fine line, the optical fiber cable are connected with system control cabinet.
10. diesel engine constant oil supply pressure system according to claim 1, which is characterized in that the diesel fuel tank is equipped with liquid level Sensor, the liquid level sensor are connected by bus with the system control cabinet.
CN201910718014.XA 2019-08-05 2019-08-05 Constant-pressure oil supply system of diesel engine Active CN110360034B (en)

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Application Number Priority Date Filing Date Title
CN201910718014.XA CN110360034B (en) 2019-08-05 2019-08-05 Constant-pressure oil supply system of diesel engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910718014.XA CN110360034B (en) 2019-08-05 2019-08-05 Constant-pressure oil supply system of diesel engine

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CN110360034A true CN110360034A (en) 2019-10-22
CN110360034B CN110360034B (en) 2024-02-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113202671A (en) * 2021-05-11 2021-08-03 四川简阳瑞特机械设备有限公司 Novel high-low pressure oil supply system and oil supply method

Citations (13)

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