CN108590907B - Diesel engine fuel constant temperature purifies management system - Google Patents

Diesel engine fuel constant temperature purifies management system Download PDF

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Publication number
CN108590907B
CN108590907B CN201810200871.6A CN201810200871A CN108590907B CN 108590907 B CN108590907 B CN 108590907B CN 201810200871 A CN201810200871 A CN 201810200871A CN 108590907 B CN108590907 B CN 108590907B
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oil
temperature
diesel
heater
heat radiation
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CN108590907A (en
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陈绍英
展召清
陆家祥
王峰
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Jinan Kairuite Automotive Parts Co ltd
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Jinan Kairuite Casting Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus 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
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • F02M31/12—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating electrically
    • F02M31/125—Fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus 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
    • F02M37/04—Feeding by means of driven pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N19/00—Starting aids for combustion engines, not otherwise provided for
    • F02N19/02—Aiding engine start by thermal means, e.g. using lighted wicks
    • F02N19/04—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

The invention provides a diesel engine fuel constant temperature purification management system, which comprises: the device comprises an oil tank, an A-section heat radiation oil conveying pipe, a rough filtration assembly, an output pipe assembly, a B-section heat radiation oil conveying pipe, an oil-water separator, a C-section heat radiation oil conveying pipe, an oil conveying pump assembly, a D-section heat radiation oil conveying pipe, a filter assembly, an E-section heat radiation oil conveying pipe, a purifier and a temperature control unit; specific requirements on fuel quality indexes are combined with quality index change rules of 5#, 0#, -10#, -20#, -35#, -50# diesel oil at normal temperature, a temperature regulation and control program for stabilizing diesel oil temperature and ensuring quality to meet matching requirements is compiled, and the quality of an engine fuel inlet is regulated and stabilized at 0.79-0.84 cm through constant-temperature control of diesel oil in use3Within the range, the maximum power efficiency and the minimum emission index are exerted under the minimum oil consumption index, and the realization of a green power source is promoted.

Description

Diesel engine fuel constant temperature purifies management system
Technical Field
The invention relates to the field of diesel generators, in particular to a constant-temperature purification management system for diesel engine fuel.
Background
The statistics of the national ministry of environmental protection show that the emission of nitrogen oxide (NOx), Hydrocarbon (HC) and PM exceeds the standard with the rapid increase of the use amount of various diesel vehicles, engineering mechanical equipment and diesel ships for marine fishing and cultivation since the evolution is open, so that the emission of the nitrogen oxide (NOx), the Hydrocarbon (HC) and the PM is not only a main factor causing the formation of haze weather and the loss of the balance of the ecological environment, but also one of main reasons causing the reduction of the reproduction rate and the reduction of the yield of marine fishes. Data statistics shows that the water area pollution of Bohai sea and yellow sea in China in recent years is up to 2.4 ten thousand square kilometers, and marine pollution caused by nitrogen oxide (NOx), Hydrocarbon (HC) and PM particles discharged by a diesel engine accounts for a large proportion.
In view of the above problems, if various diesel engine performance test data and performance test methods are used, the reason that the emission of the diesel power equipment exceeds the standard can be easily found, and the problem is mainly caused by that the quality of the diesel oil sprayed into a certain volume of an air cylinder exceeds the standard and the combustion is insufficient after the quality of the used diesel oil is increased due to the influence of low air temperature.
It is known that the fuel rate of diesel engine under rated power condition is obtained by converting the mass of a certain volume ejected from the fuel injection nozzle chamber, however, the mass of diesel oil with the same volume and different temperature has a certain difference, so when the same grade of diesel oil is affected by different temperatures, the mass of the diesel oil changes. Therefore, the fuel consumption, power performance and exhaust emission of diesel engines vary with the quality of diesel fuel. For example, in cold days, diesel vehicles often consume large oil, have insufficient power, emit serious black smoke, are difficult to start in cold, and the like, which are caused by the fact that diesel oil is thickened due to cold and the quality of the diesel oil is increased.
However, when the diesel engine is applied to various fields, the service performance of each part of the fuel supply system is not specified by the GB/T18297-2001 standard clause, so that the actual fuel consumption rate is far higher than the factory measured value, and the exhaust emission is far higher than the design index.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a constant-temperature purification management system for diesel engine fuel, which comprises: the oil tank comprises an A-section heat radiation oil conveying pipe, a rough filtration assembly, an output pipe assembly, a B-section heat radiation oil conveying pipe, an oil-water separator, a C-section heat radiation oil conveying pipe, an oil conveying pump assembly, a D-section heat radiation oil conveying pipe, a filter assembly, an E-section heat radiation oil conveying pipe, a purifier, an F-section heat radiation oil conveying pipe, an H-section heat radiation oil conveying pipe, an oil return pipe and a temperature control unit;
an oil outlet is formed in the bottom of the oil tank, an infrared heater and a first oil temperature sensor T are mounted at the oil outlet, and the oil tank infrared heater is arranged inside the oil tank; the first oil temperature sensor T is arranged outside the oil tank;
the input end of the A-section heat radiation oil conveying pipe is connected with an oil outlet of the oil tank, and the output end of the A-section heat radiation oil conveying pipe is connected with an inlet of the rough filtering assembly; one end of the output pipe assembly is connected with an outlet of the rough filtering assembly, the other end of the output pipe assembly is connected with an input end of the section B of thermal radiation oil conveying pipe, an output end of the section B of thermal radiation oil conveying pipe is connected with an input end of an oil-water separator, an output end of the oil-water separator is connected with an input end of the section C of thermal radiation oil conveying pipe, an output end of the section C of thermal radiation oil conveying pipe is connected with an input end of the oil conveying pump assembly, and an input end of the oil conveying pump assembly is connected; the output end of the oil delivery pump assembly is connected with the input end of a D-section heat radiation oil delivery pipe, the output end of the D-section heat radiation oil delivery pipe is connected with the input end of a filter assembly, the output end of the filter assembly is connected with the input end of an E-section heat radiation oil delivery pipe, the output end of the E-section heat radiation oil delivery pipe is connected with the inlet of a purifier, the outlet of the purifier is connected with the input end of an F-section heat radiation oil delivery pipe, the output end of the F-section heat radiation oil delivery pipe is connected with the oil return input end of the oil delivery pump assembly, the oil return output end of the oil delivery pump assembly is connected with the input end of an H-section heat radiation oil delivery pipe;
a first heater is arranged at the input end of the A-section heat radiation oil conveying pipe; a second heater is arranged in the coarse filtration assembly, a third heater is arranged at the input end of the B-section heat radiation oil conveying pipe, a fourth heater is arranged in the oil-water separator, a fifth heater is arranged at the input end of the C-section heat radiation oil conveying pipe, a sixth heater is arranged at the output end of the D-section heat radiation oil conveying pipe, a seventh heater is arranged at the input end of the E-section heat radiation oil conveying pipe, an eighth heater is arranged at the input end of the F-section heat radiation oil conveying pipe, and a ninth heater is arranged at the output end of the H;
the temperature control unit includes: the temperature control processing module and the temperature acquisition module;
the temperature acquisition module is respectively connected with a first oil temperature sensor T and a second oil temperature sensor T, acquires the oil temperature at the oil outlet of the oil tank through the first oil temperature sensor T, acquires the oil temperature at the inlet of the oil transfer pump through the second oil temperature sensor T, and transmits the acquired oil temperature to the temperature control processing module;
the temperature acquisition module, the infrared heater, the first heater, the second heater, the third heater, the fourth heater, the fifth heater, the sixth heater, the seventh heater, the ninth heater and the eighth heater are respectively connected with the temperature control processing module, the temperature control processing module is used for comparing the acquired oil temperature at the oil outlet of the oil tank and the oil temperature at the inlet of the oil delivery pump with a preset threshold value, when the acquired oil temperature is not within the preset threshold value range, the temperature control processing module respectively controls the infrared heater, the first heater, the second heater, the third heater, the fourth heater, the fifth heater, the sixth heater, the seventh heater, the ninth heater and the eighth heater to be started to heat the oil temperature in the system, and when the oil temperature in the system reaches the preset threshold value range, the heating is stopped.
Preferably, the temperature control unit further comprises: the system comprises a diesel oil grade setting module, an oil heating starting temperature setting module, an oil temperature upper limit value setting module and an oil tank temperature threshold value setting module;
the system comprises a diesel oil grade setting module, an oil heating starting temperature setting module, an oil temperature upper limit value setting module and an oil tank temperature threshold value setting module, wherein the oil temperature upper limit value setting module and the oil tank temperature threshold value setting module are respectively connected with a temperature control processing module and are used for transmitting set parameter data to the temperature control processing module;
the diesel grade setting module is used for setting the grade of diesel in the system, and the grade of the diesel comprises the following components: 5# diesel, 0# diesel, 10# diesel, 20# diesel, 35# diesel and 50# diesel;
the oil heating starting temperature setting module is used for setting the heating starting temperature of the diesel oil of each grade; when 5# diesel oil is in the system, setting the temperature of the oil lower than 7 ℃ as the starting temperature of the heater before the system is started; when 0# diesel oil is in the system, setting the temperature of the oil to be lower than 5 ℃ as the starting temperature of the heater before the system is started; when-10 # diesel oil is in the system, setting the temperature of the oil lower than-4 ℃ as the starting temperature of the heater before the system is started; when-20 # diesel oil is in the system, setting the temperature of the oil lower than-13 ℃ as the starting temperature of the heater before the system is started; when the diesel oil is-35 # diesel oil in the system, setting the temperature of the oil below-28 ℃ as the starting temperature of the heater before the system is started; when the diesel oil is-50 # diesel oil in the system, the oil temperature is lower than-43 ℃ before the system is started, and the starting temperature of a heater is set;
the oil temperature upper limit value setting module is used for setting the heating temperature upper limit values of the diesel oil of each grade;
when 5# diesel oil is in the system and the temperature of the system oil is heated to be higher than 8 ℃, stopping heating the diesel oil in the oil tank and the oil conveying pipe respectively;
when 0# diesel oil is in the system and the heating temperature of the system oil is higher than 7 ℃, stopping heating the diesel oil in the oil tank and the oil conveying pipe respectively;
when the system is-10 # diesel oil and the temperature of the system oil is heated to be higher than-3 ℃, stopping heating the diesel oil in the oil tank and the oil conveying pipe respectively;
when the system is-20 # diesel oil and the temperature of the system oil is heated to be higher than-12 ℃, stopping heating the diesel oil in the oil tank and the oil conveying pipe respectively;
when the temperature of the system oil is higher than-27 ℃, stopping heating the diesel oil in the oil tank and the oil conveying pipe respectively;
when the temperature of the system oil is higher than minus 42 ℃, stopping heating the diesel oil in the oil tank and the oil conveying pipe respectively;
the oil tank temperature threshold setting module is used for setting the temperature control range of each level of diesel oil in the oil tank;
when 5# diesel oil is filled in the oil tank, the oil temperature control range of the oil tank is 13 +/-2 ℃;
when 0# diesel oil is in the system, the oil temperature control range of the oil tank is 8 +/-2 ℃;
when-10 # diesel oil is in the system, the oil temperature control range of the oil tank is 0 +/-2 ℃;
when-20 # diesel oil is in the system, the oil temperature control range of the oil tank is-10 +/-2 ℃;
when-35 # diesel oil is in the system, the oil temperature control range of the oil tank is-25 +/-2 ℃;
when the system is 50# diesel, the oil temperature control range of the oil tank is 40 +/-2 ℃.
Preferably, the temperature control unit further comprises: an oil temperature threshold control module at an inlet of the oil delivery pump;
the oil delivery pump inlet oil temperature threshold control module is connected with the temperature control processing module and is used for transmitting the oil delivery pump inlet oil temperature threshold to the temperature control processing module;
the oil temperature threshold control module at the inlet of the oil delivery pump is used for setting the oil temperature threshold of diesel oil of each grade at the inlet of the oil delivery pump;
when 5# diesel oil is filled in the oil tank, the oil temperature control range of the oil-water separator is 50 +/-2 ℃;
when 0# diesel oil is in the system, the oil temperature control range of the oil-water separator is 40 +/-2 ℃;
when-10 # diesel oil is in the system, the oil temperature control range of the oil-water separator is 30 +/-2 ℃;
when-20 # diesel oil is in the system, the oil temperature control range of the oil-water separator is-6 +/-2 ℃;
when-35 # diesel oil is in the system, the oil temperature control range of the oil-water separator is-18 +/-2 ℃;
when the system is 50# diesel, the oil temperature control range of the oil-water separator is 35 ℃ below zero plus or minus 2 ℃.
Preferably, the temperature control unit further comprises: the system comprises a display screen, a diesel oil grade setting knob, an electric leakage protection module and a heater short-circuit protection module, wherein the electric leakage protection module is used for carrying out electric leakage protection on the system when the system has an electric leakage fault, and the heater short-circuit protection module is used for protecting the system when the heater has a short-circuit fault;
the diesel grade setting knob is connected with the temperature control processing module and is used for setting the current diesel grade in the system and transmitting the current diesel grade in the set system to the temperature control processing module;
the temperature control processing module is connected with the display screen and is used for displaying the current oil temperature of the system and displaying the operating parameters of the system;
the temperature control processing module and the display adopt Modbus protocol communication;
the temperature control processing module comprises: the device comprises a storage, an EEPROM register, a singlechip and a singlechip peripheral circuit;
the storage device stores system data parameters, control instructions of the single chip microcomputer and temperature parameters sensed by the first oil temperature sensor T and the second oil temperature sensor T;
the infrared heater adopts a far infrared heat radiator;
the singlechip adopts an STC15W404AS singlechip.
Preferably, the straining assembly comprises: the connecting pipe assembly, the output pipe assembly, the first filtering device and the second filtering device;
the first filtering device and the second filtering device are arranged in parallel; the top of the first filtering device is provided with a filtering device inlet and a first connecting port; the top of the second filtering device is provided with a filtering device outlet and a second connecting port; the top of the first filtering device and the top of the second filtering device are respectively provided with an exhaust port;
the output end of the A-section heat radiation oil conveying pipe is connected with the inlet of a first filtering device, the first end of a connecting pipe assembly is connected with the first connecting port of the first filtering device, and the second end of the connecting pipe assembly is connected with the inlet of a second filtering device of the second filtering device; the outlet of the second filter device is connected with one end of an output pipe assembly, and the other end of the output pipe assembly is connected with the input end of the B-section heat radiation oil conveying pipe;
the first filtering device is provided with a first stainless steel filter element, and a first filtering shell is wrapped outside the first stainless steel filter element; the bottom of the first filtering device is provided with a first filter element flange which is respectively connected with the bottom of the first stainless steel filter element and the bottom of the first filtering shell in a sealing way; the second heater is arranged on the first filter element flange and is arranged between the first stainless steel filter element and the first filtering shell; the outer side surface of the first filter element flange is provided with a first alumina ceramic heat radiator connecting electrode;
the second filtering device is provided with a second stainless steel filter element, and a second filtering shell is wrapped outside the second stainless steel filter element; the bottom of the second filtering device is provided with a second filter element flange which is respectively connected with the bottom of the second stainless steel filter element and the bottom of the second filtering shell in a sealing way; the second heater is arranged on the second filter element flange and is arranged between the second stainless steel filter element and the second filtering shell;
the outer side surface of the first filter element flange and the outer side surface of the second filter element flange are respectively provided with a second heater connecting electrode;
the second heater adopts an alumina ceramic heat radiator.
Preferably, the filter assembly comprises: the primary fine filter, the secondary fine filter and the fine filter connecting device;
the first-stage fine filter and the second-stage fine filter are respectively communicated with a fine filter connecting device; the fine filter connecting device is provided with a filter assembly input end and a filter assembly output end; diesel oil enters the fine filter connecting device through the input end of the filter component, enters the first-stage fine filter through the fine filter connecting device, enters the second-stage fine filter through the fine filter connecting device, and is finally output through the output end of the filter component of the fine filter connecting device;
the first-stage fine filter and the second-stage fine filter are respectively provided with a fine filter heater;
the fine filter heater is connected with the temperature control processing module, and the temperature control processing module controls the fine filter heater to be opened and closed.
Preferably, the purifier comprises: the purification bin is provided with a purifier inlet and a purifier outlet; a stainless steel magnetizer is fixedly arranged inside the purifying bin;
the stainless steel magnetizer is provided with a stainless steel shell, and a stainless steel permanent magnet bar is fixedly arranged in the stainless steel shell.
Preferably, the oil water separator includes: the filter element assembly is fixedly arranged at the top of the filter element assembly;
the filter element assembly comprises a filter element shell, a filter element and a filter element inner support, wherein a filter element assembly oil inlet hole and a filter element assembly oil outlet are formed in the top of the filter element assembly; the lower part of the filter element shell is provided with a water accumulation cup;
a fourth heater and a water level sensor are arranged in the water accumulation cup; the water level sensor is connected with the temperature control processing module, and the water level sensor transmits the sensed water level to the temperature control processing module.
Preferably, the filter base assembly comprises a filter base shell and a thermal power valve, the filter base shell is provided with an input port, a filter element assembly oil inlet port interface, a filter element assembly oil outlet port interface, an output port, an oil return port and a heat dissipation port, the input port is communicated with the filter element assembly oil inlet port interface through an input channel, the filter element assembly oil outlet port is communicated with the output port through an output channel, and the filter base assembly is characterized in that: the oil return port is connected with the thermal valve through an oil return channel, the heat dissipation port is connected with the thermal valve through a heat dissipation channel, and the input channel is connected with the thermal valve through a heat recycling channel;
the thermal power valve comprises a thermal power valve core, a thermal power device and a return spring, the thermal power device comprises a thermal power device shell in which thermal wax is filled and a push rod, the thermal power device shell is fixedly connected with the filter base shell, and the thermal power device shell is positioned in the output channel; a heat valve chamber is arranged in the filter base shell, the oil return port is communicated with the heat valve chamber through the oil return channel, the heat dissipation port is connected with an upper port of the heat valve chamber through the heat dissipation channel, and the input channel is connected with a lower port of the heat valve chamber through the heat recycling channel; the thermal valve core is slidably arranged in the thermal valve chamber, the thermal valve core is fixedly connected with the push rod, the return spring is arranged between the thermal valve core and the filter seat shell, and the movement of the thermal valve core can open or close an upper port or a lower port of the thermal valve chamber;
a first one-way valve is arranged in the oil return channel; a second one-way valve is arranged in the heat dissipation channel; and a third one-way valve is arranged in the input channel.
According to the technical scheme, the invention has the following advantages:
according to the quality standard of diesel GB19147-2016, a control program for safely heating and reasonably supplementing heat energy for each grade of diesel is compiled in the diesel constant-temperature purification management system of the diesel engine, so that the cold application range of each grade of diesel is widened, the application efficiency is improved, and the problem of difficulty in cold application is solved.
According to the GB/T18297-2001 bench performance test standard of the diesel engine and the specific requirements of fuel quality indexes,combining the quality (proportion) index change rule of 5#, 0#, -10#, -20#, -35#, -50# diesel oil under the normal temperature state, compiling a temperature regulation and control program for stabilizing the diesel oil temperature and ensuring that the quality meets the matching requirement, regulating and stabilizing the quality of the fuel oil inlet of the engine at 0.79-0.84 cm through constant temperature control of the diesel oil in use3Within the range, the maximum power efficiency and the minimum emission index are exerted under the minimum oil consumption index, and the realization of a green power source is promoted.
In the invention, the constant temperature management is reasonable, and the fuel quality is stable: after the engine is started and operated, when the second oil temperature sensor detects the temperature of the fuel inlet of the engine, the mass of the fuel inlet is lower than that of diesel oil and is stabilized at 0.79-0.84 cm3When the diesel oil is required, the constant temperature data information processing module compares temperature difference according to temperature data detected by the second oil temperature sensor, outputs low level according to the temperature difference obtained by comparison, prompts the temperature control processing module to have high potential output, and supplies the high potential output to a far infrared ceramic heater arranged in a water accumulation cup of a constant temperature oil-water separator to work, so that the far infrared ceramic heater is forced to release high temperature heat waves, and the diesel oil passing through the constant temperature oil-water separator is prompted to be rapidly heated, the quality is stabilized in a range matched with the power change, therefore, the engine can exert the maximum power efficiency under the lowest oil consumption index, and the phenomena of insufficient combustion, overproof exhaust emission and serious environmental pollution caused by the overproof diesel oil quality are effectively prevented.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a general schematic diagram of a diesel engine fuel constant temperature purification management system;
FIG. 2 is a schematic view of a temperature control unit;
FIG. 3 is a pin diagram of a single chip microcomputer;
FIG. 4 is a sectional view of the oil-water separator;
fig. 5 is a sectional view taken along the direction of fig. a.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to specific embodiments and drawings. 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 scope of protection of this patent.
The present embodiment provides a diesel engine fuel constant temperature purification management system, as shown in fig. 1 and fig. 2, including: the device comprises an oil tank 50, an A-section heat radiation oil delivery pipe 2, a rough filtration assembly 3, an output pipe component 9, a B-section heat radiation oil delivery pipe 12, an oil-water separator 51, a C-section heat radiation oil delivery pipe 24, an oil delivery pump component 52, a D-section heat radiation oil delivery pipe 25, a filter component 26, an E-section heat radiation oil delivery pipe 29, a purifier 53, an F-section heat radiation oil delivery pipe 34, an H-section heat radiation oil delivery pipe 35, an oil return pipe 42 and a temperature control unit;
an oil outlet is formed in the bottom of the oil tank 50, the infrared heater 1, an oil tank oil temperature sensor and a first oil temperature sensor T01 are mounted at the oil outlet, and the oil tank oil temperature sensor and the infrared heater 1 are arranged inside the oil tank 50; the first oil temperature sensor T01 is disposed outside the oil tank 50;
the input end of the A-section heat radiation oil conveying pipe 2 is connected with an oil outlet of an oil tank, and the output end of the A-section heat radiation oil conveying pipe 2 is connected with an inlet of a rough filtering assembly 3; one end of an output pipe component 9 is connected with an outlet of the rough filtering assembly 3, the other end of the output pipe component 9 is connected with an input end of a B-section heat radiation oil conveying pipe 12, an output end of the B-section heat radiation oil conveying pipe 12 is connected with an input end of an oil-water separator 51, an output end of the oil-water separator 51 is connected with an input end of a C-section heat radiation oil conveying pipe 24, an output end of the C-section heat radiation oil conveying pipe 24 is connected with an input end of an oil conveying pump component 52, and an input end of the oil conveying pump component 52 is connected with a; the output end of the oil delivery pump assembly 52 is connected with the input end of the D-section heat radiation oil delivery pipe 25, the output end of the D-section heat radiation oil delivery pipe 25 is connected with the input end of the filter assembly 26, the output end of the filter assembly 26 is connected with the input end of the E-section heat radiation oil delivery pipe 29, the output end of the E-section heat radiation oil delivery pipe 29 is connected with the inlet of the purifier 53, the outlet of the purifier 53 is connected with the input end of the F-section heat radiation oil delivery pipe 34, the output end of the F-section heat radiation oil delivery pipe 34 is connected with the oil return input end of the oil delivery pump assembly 52, the oil return output end of the oil delivery pump assembly 52 is connected with the input end of the H-section heat radiation oil delivery pipe 35, the output end of the;
a first heater 61 is arranged at the position, close to the infrared heater 1, of the input end of the A-section heat radiation oil delivery pipe 2; a second heater 62 is arranged in the coarse filtration assembly 3, a third heater 63 is arranged at the input end of the B-section heat radiation oil delivery pipe 12, a fourth heater 22 is arranged in the oil-water separator 51, a fifth heater 65 is arranged at the input end of the C-section heat radiation oil delivery pipe 24, a sixth heater 66 is arranged at the output end of the D-section heat radiation oil delivery pipe 25, a seventh heater 67 is arranged at the input end of the E-section heat radiation oil delivery pipe 29, an eighth heater 68 is arranged at the input end of the F-section heat radiation oil delivery pipe 34, and a ninth heater 69 is arranged at the output end of the H-section;
the temperature control unit includes: a temperature control processing module 17 and a temperature acquisition module 18;
the temperature acquisition module 18 is respectively connected with an oil tank temperature sensor, a first oil temperature sensor T01 and a second oil temperature sensor T02, the temperature acquisition module 19 acquires oil temperature at an oil outlet of the oil tank through the first oil temperature sensor T01, acquires oil temperature at an input end of the oil transfer pump assembly 52 through the second oil temperature sensor T02, acquires oil temperature in the oil tank through the oil tank temperature sensor, and transmits the acquired oil temperature to the temperature control processing module 17;
the temperature acquisition module 18, the infrared heater 1, the first heater 61, the second heater 62, the third heater 63, the fourth heater 22, the fifth heater 65, the sixth heater 66, the seventh heater 67, the ninth heater 69 and the eighth heater 68 are respectively connected with the temperature control processing module 18, the temperature control processing module 18 is used for comparing the acquired oil temperature at the oil outlet of the oil tank and the oil temperature at the input end of the oil transportation pump assembly 52 with a preset threshold value, when the acquired oil temperature is not within the preset threshold value range, the temperature control processing module respectively controls the infrared heater 1, the first heater 61, the second heater 62, the third heater 63, the fourth heater 22, the fifth heater 65, the sixth heater 66, the seventh heater 67, the ninth heater 69 and the eighth heater 68 to be turned on to heat the oil temperature in the system, when the oil temperature in the system reaches the preset threshold value range, the heating was stopped.
In this embodiment, the temperature control unit further includes: a display screen 99, a diesel level setting knob 96, an earth leakage protection module 97 for performing earth leakage protection on the system when the system has an earth leakage fault, and a heater short-circuit protection module 98 for protecting the system when the heater has a short-circuit fault;
the diesel grade setting knob 96 is connected with the temperature control processing module 17, and the diesel grade setting knob 96 is used for setting the current diesel grade in the system and transmitting the current diesel grade in the set system to the temperature control processing module;
the temperature control processing module 17 is connected with the display screen 99 and is used for displaying the current oil temperature of the system and displaying the operation parameters of the system; the temperature control processing module 17 and the display 99 adopt Modbus protocol communication;
the temperature control processing module 17 includes: the device comprises a storage, an EEPROM register, a singlechip and a singlechip peripheral circuit; the storage device stores system data parameters, control instructions of the single chip microcomputer and temperature parameters sensed by the first oil temperature sensor T01 and the second oil temperature sensor T02; the infrared heater 1 adopts a far infrared heat radiator; the singlechip adopts an STC15W404AS singlechip.
The far infrared thermo-optical wave radiation heater is an alumina ceramic body which is electrified to emit far infrared thermo-optical waves, the surface temperature of the heater is low, and the radius of the thermo-optical waves released only by electrifying reaches 6-24 cm.
The far infrared heat radiator is a cylindrical far infrared radiator made of alumina ceramics, carbon-nickel materials capable of releasing far infrared heat waves are electrified and printed on an alumina ceramic plate, the printed carbon-nickel materials are compounded in the middle of the alumina ceramic plate by using the same alumina ceramics, and the aluminum-nickel heat radiator is pressed by a forming tool and sintered at high temperature, so that the special heat radiator suitable for heating flammable oil products is formed. The infrared thermo-optical wave is released by electrifying, the surface temperature is low, and oil molecules are not damaged; low power consumption and high heat transfer efficiency up to 97%. Compared with the common metal heater, the metal heater has the characteristics of bright energy conservation, environmental protection, light wave radiation heating, high insulativity, long service life and the like.
Adopt the Modbus communication protocol between temperature controller and the display, implement automatic handshake, when not correctly shaking hands, the display is flowing water and shows "-". And when the handshake is successful, respectively displaying the inlet temperature of the engine and the outlet temperature of the oil tank.
After the EEPROM register finishes signal storage, the display automatically exits the setting state and immediately displays the temperature of the current diesel oil. After the diesel oil label is changed, the selection identification button is lightly pressed, the EEPROM register automatically identifies a temperature regulation and control instruction according to the obtained information, and the temperature controller controls the electrifying time, the heating time and the release temperature of the heat radiation component according to the temperature regulation and control instruction, and the form is shown in the following graph.
As shown in figure 3, the execution data password is written into the singlechip, when the data information commands of the 7 th pin and the 9 th pin of the singlechip are not consistent with the written data password, the singlechip automatically calculates the data difference between the two, outputs the level converted by the data command through the pins 18, 19 and 20, drives the conduction state of a triode Q1/Q2/Q3, and changes the output end of power Q1/Q5/Q6 and the magnitude of output current through the change of the conduction state of the triode, thereby prompting the far infrared heater AZ/BZ/CZ to release the thermo-optical wave which ensures that the oil temperature is not changed, so far, the ideal constant temperature management is obtained when diesel is used.
The temperature of the fuel supplied to the engine is high and low, and the output time and the output potential of the digital module temperature controller are determined; the digital module temperature controller can not receive oil temperature data information, and the singlechip is closed to output and enters a dormant state, namely: potential safety hazards caused by long-time heating due to faults such as damage and open circuit of the sensor are avoided.
When any heat radiation component or heat radiation component working power supply circuit is grounded by a heater short-circuit protection module, a magnetic sensing element is interfered by an abnormal magnetic field and is conducted, and a high level is output to close an STC15W404AS single chip microcomputer, like the conventional computer crash, so that unsafe faults caused by overcurrent are prevented.
In this embodiment, the temperature control unit can implement that, when an output source load line of a certain element has a short circuit or a leakage fault, the leakage protection module or the heater short circuit protection module magnetic sensing element switches on the active pole to output a high level by a change of the output magnetic field, and closes the diesel oil level and the database, and forces the temperature data comparison module to lose the working level and close, so that the power output module enters a static state, thereby preventing the fault from being enlarged. At the moment when the magnetic sensitive element is switched on, the load circuit dynamic diagnosis module decodes the fault code and directly displays the fault code on a desktop through a display.
For example: at the moment that an oil tank of the fuel constant-temperature purification management system is preheated, a constant-temperature management load is short-circuited or a circuit has an electric leakage fault, different magnetic deformation exists on a wire harness passing through the magnetic sensitive device and is conducted under the influence of the different magnetic deformation, and the load circuit dynamic diagnosis module immediately decodes an Er0 fault code.
If the oil pipeline of the fuel constant-temperature purification management system is short-circuited or the line has an electric leakage fault, abnormal magnetic deformation exists on a wire harness passing through the magnetic sensitive device and the wire harness is conducted under the influence of the abnormal magnetic deformation, and the load circuit dynamic diagnosis module immediately decodes an Er1 fault code.
Wherein, the adoption of magnetism sensing original paper and the settlement and the trouble position suggestion of fault code, promptly: if the display has a fault code, the heating load of the oil tank is determined to have a short circuit or leakage fault, and the innovation point is that the fault position is conveniently searched and eliminated. And secondly, after the source load of one unit of the power output module fails, is locked by the load circuit dynamic diagnosis module and is closed to output, the source output of the other two units and the normal work of the load are not influenced.
In this embodiment, the temperature control unit may be implemented such that, when the temperature data detected by a certain sensor is drifted (data is unclear), the temperature data comparison module immediately closes the corresponding constant temperature data information processor, and forces the power output module to lose the corresponding control load data link and close the output, and the load circuit in communication with the sensor loses power to stop working, and at the same time, the constant temperature data information processing module decodes the fault code of the faulty sensor and displays the fault code in the digital window of the display. If the sensor has an open-circuit fault, the constant temperature data information processing module immediately decodes a fault code; if the sensor is damaged and loses detection efficiency, the constant temperature data information processing module immediately decodes a fault code; when the sensor breaks down, the power output module immediately closes the output.
In this embodiment, the temperature control unit further includes: a diesel oil level setting module 91, an oil heating starting temperature setting module 92, an oil temperature upper limit value setting module 93 and an oil tank temperature threshold value setting module 94;
the diesel oil level setting module 91, the oil heating starting temperature setting module 92, the oil temperature upper limit value setting module 93 and the oil tank temperature threshold value setting module 94 are respectively connected with the temperature control processing module 17 and are used for transmitting set parameter data to the temperature control processing module;
the diesel grade setting module is used for setting the grade of diesel in the system, and the grade of the diesel comprises the following components: 5# diesel, 0# diesel, 10# diesel, 20# diesel, 35# diesel and 50# diesel;
the oil heating starting temperature setting module is used for setting the heating starting temperature of the diesel oil of each grade; when 5# diesel oil is in the system, setting the temperature of the oil lower than 7 ℃ as the starting temperature of the heater before the system is started; when 0# diesel oil is in the system, setting the temperature of the oil to be lower than 5 ℃ as the starting temperature of the heater before the system is started; when-10 # diesel oil is in the system, setting the temperature of the oil lower than-4 ℃ as the starting temperature of the heater before the system is started; when-20 # diesel oil is in the system, setting the temperature of the oil lower than-13 ℃ as the starting temperature of the heater before the system is started; when the diesel oil is-35 # diesel oil in the system, setting the temperature of the oil below-28 ℃ as the starting temperature of the heater before the system is started; when the diesel oil is-50 # diesel oil in the system, the oil temperature is lower than-43 ℃ before the system is started, and the starting temperature of a heater is set;
the oil temperature upper limit value setting module is used for setting the heating temperature upper limit values of the diesel oil of each grade;
when 5# diesel oil is in the system and the temperature of the system oil is heated to be higher than 8 ℃, stopping heating the diesel oil in the oil tank and the oil conveying pipe respectively;
when 0# diesel oil is in the system and the heating temperature of the system oil is higher than 7 ℃, stopping heating the diesel oil in the oil tank and the oil conveying pipe respectively;
when the system is-10 # diesel oil and the temperature of the system oil is heated to be higher than-3 ℃, stopping heating the diesel oil in the oil tank and the oil conveying pipe respectively;
when the system is-20 # diesel oil and the temperature of the system oil is heated to be higher than-12 ℃, stopping heating the diesel oil in the oil tank and the oil conveying pipe respectively;
when the temperature of the system oil is higher than-27 ℃, stopping heating the diesel oil in the oil tank and the oil conveying pipe respectively;
when the temperature of the system oil is higher than minus 42 ℃, stopping heating the diesel oil in the oil tank and the oil conveying pipe respectively;
the oil tank temperature threshold setting module is used for setting the temperature control range of each level of diesel oil in the oil tank;
the oil delivery pipe herein includes: a section heat radiation oil delivery pipe, a section B heat radiation oil delivery pipe, a section C heat radiation oil delivery pipe, a section D heat radiation oil delivery pipe, a section E heat radiation oil delivery pipe, a section F heat radiation oil delivery pipe, a section H heat radiation oil delivery pipe and an oil return pipe (42). Other oil lines in the system are also included.
When 5# diesel oil is filled in the oil tank, the oil temperature control range of the oil tank is 13 +/-2 ℃;
when 0# diesel oil is in the system, the oil temperature control range of the oil tank is 8 +/-2 ℃;
when-10 # diesel oil is in the system, the oil temperature control range of the oil tank is 0 +/-2 ℃;
when-20 # diesel oil is in the system, the oil temperature control range of the oil tank is-10 +/-2 ℃;
when-35 # diesel oil is in the system, the oil temperature control range of the oil tank is-25 +/-2 ℃;
when the system is 50# diesel, the oil temperature control range of the oil tank is 40 +/-2 ℃.
In this embodiment, the temperature control unit further includes: an oil temperature threshold control module 95 at the input end of the oil delivery pump;
the oil temperature threshold control module at the input end of the oil delivery pump is connected with the temperature control processing module and is used for transmitting the oil temperature threshold at the input end of the oil delivery pump to the temperature control processing module;
the oil temperature threshold control module at the input end of the oil delivery pump is used for setting the oil temperature threshold of diesel oil of each grade at the input end of the oil delivery pump;
when 5# diesel oil is filled in the oil tank, the oil temperature control range of the oil-water separator is 50 +/-2 ℃;
when 0# diesel oil is in the system, the oil temperature control range of the oil-water separator is 40 +/-2 ℃;
when-10 # diesel oil is in the system, the oil temperature control range of the oil-water separator is 30 +/-2 ℃;
when-20 # diesel oil is in the system, the oil temperature control range of the oil-water separator is-6 +/-2 ℃;
when-35 # diesel oil is in the system, the oil temperature control range of the oil-water separator is-18 +/-2 ℃;
when the system is 50# diesel, the oil temperature control range of the oil-water separator is 35 ℃ below zero plus or minus 2 ℃.
In the embodiment, the internal elements of the temperature control unit of the diesel engine fuel constant-temperature purification management system adopt asynchronous serial (UART) communication to complete data exchange, digital display is realized through a nixie tube, and fault types are diagnosed by switching value signals and displayed on a desktop in a code form to warn an operator and the like,
the cold filter plugging point, the condensation point and the quality specified for each grade of diesel oil according to the quality standard GB19147-2016 of the diesel oil are programmed into the storage according to the specific requirements of the performance test standard GB/T18297-2001 of the diesel engine rack, and the constant temperature management of each grade of diesel oil is realized under different temperature conditions. The constant temperature management working process is as follows; and a working power supply of the temperature control unit is switched on, the display is lightened, and the temperature control unit realizes asynchronous serial communication. The user can touch the selection button lightly, the user can select the diesel oil label to be used, the correctness of the selected diesel oil label is displayed through the display, the user can compare the temperature from the temperature sensor with the comparison data difference of the preset threshold value through the temperature control processing module after the user lightly presses the selection button for about 3 seconds to confirm, when the obtained oil temperature is not in the range of the preset threshold value, the temperature control processing module respectively controls the infrared heater 1, the first heater 61, the second heater 62, the third heater 63, the fourth heater 22, the fifth heater 65, the sixth heater 66, the seventh heater 67, the ninth heater 69 and the eighth heater 68 to be started to heat the oil temperature in the system, and when the oil temperature in the system reaches the range of the preset threshold value, the heating is stopped.
The invention provides a method for programming the specific requirements of the relationship between the temperature and the quality of diesel oil in No. 6 and No. 6.5 according to the cold filter plugging point and the condensation point specified by the diesel oil of each grade according to the GB19147-2016 quality standard and in combination with the GB/T18297-2001 bench performance test standard of a diesel engine, and the reasons are that the quality of the diesel oil of different grades has great difference under the same temperature condition, the voltage output dynamic parameters of a temperature control unit need to be programmed according to the maximum fuel oil quality requirement under the rated power of the diesel engine, the temperature control unit needs to be programmed and written into a storage to form a password. The constant temperature management program of a certain diesel oil label is found through a diesel oil level setting knob of the temperature control unit and is memorized by the temperature data comparison module after being confirmed, the constant temperature management program is compared with the temperature data from the module sensor, the temperature data difference obtained by comparison is converted into a control level for constant temperature data information processing, corresponding heating voltage is adjusted and output according to the height of the control level, and after the control level is detected by the load circuit dynamic diagnosis module, the control level is used for a far infrared heat radiator to work, and the thermo-optical wave temperature meeting the constant temperature requirement of the diesel oil in use is released, wherein the thermo-optical wave temperature is shown in the following table.
Constant temperature management data table for diesel oil of each label
Figure GDA0002416125520000141
Figure GDA0002416125520000151
In this embodiment, asynchronous serial (UART) communication: the accuracy of database data chain retrieval is achieved through the pulse signals, the synchronization of the detection data of the module sensor and the database is guaranteed, the heating temperature is reliable, and the power output is safe.
The cold start preheating temperature is accurate: when the engine is in cold start, when the temperature data of the diesel oil in use detected by the first oil temperature sensor T01 and the second oil temperature sensor T02 are compared with the database through the temperature data comparison module, if the comparison result is equal to or lower than a cold filter plugging point, a low level is output according to the comparison temperature difference, so that the temperature control processing module has high potential output, all heat radiation components of the constant temperature purification management system are powered to release hot light waves, the diesel oil which is lower than the use requirement is heated to be diluted, and an oil path is unblocked. If the temperature data of the diesel oil in use detected by the first oil temperature sensor T01 and the second oil temperature sensor T02 are compared with the database through the temperature data comparison module to obtain a result of 4 ℃ higher than the cold filter plugging point, the temperature control processing module outputs high level, and the electric heating is turned off, namely: and cutting off a fuel tank, each section of heat radiation oil delivery pipe and a heating power supply of the preheating type filter. Otherwise, the operation is performed again.
In the invention, the constant temperature management is reasonable, and the fuel quality is stable: after the engine is started and operated, when the second oil temperature sensor T02 detects the temperature of the fuel inlet of the engine, the mass of the fuel inlet is lower than that of diesel oil and is stabilized at 0.79-0.84 cm3When in demand, the constant temperature data information processing module compares temperature difference according to the temperature data detected by the second oil temperature sensor T02, outputs low level according to the temperature difference obtained by comparison, prompts the temperature control processing module to have high potential output, and supplies to a far infrared ceramic heater arranged in a water collecting cup of a constant temperature oil-water separator to work, so as to force the far infrared ceramic heater to release high temperature heat waves, and prompt diesel oil passing through the constant temperature oil-water separator to be rapidly heated, the quality is stabilized in a range matched with the power change, thereby the engine can exert the maximum power efficiency under the lowest oil consumption index, and the phenomena of insufficient combustion, excessive exhaust emission and serious environmental pollution caused by excessive diesel oil quality are effectively prevented.
According to the quality standard of diesel oil GB19147-2016, a temperature regulating program is compiled and written into a diesel oil grade and temperature database according to the quality requirements of diesel oil of each grade, when a certain grade of diesel oil is used, the diesel oil grade and the oscillation frequency of the temperature database can be changed only by setting a knob through the diesel oil grade, the diesel oil grade and the oscillation frequency of the temperature database are changed through voltage, and the working state of a temperature data comparison module is automatically synchronized with the diesel oil grade and the temperature database, so that the output state of a power output module has digital modular temperature regulating and controlling efficiency (see a diesel oil constant temperature management data table of each grade).
In this embodiment, the rough filtration assembly 3 includes: a connecting pipe assembly 8, an output pipe assembly 9, a first filter device 71 and a second filter device 72;
the first filtering device and the second filtering device are arranged in parallel; the top of the first filtering device is provided with a filtering device inlet and a first connecting port; the top of the second filtering device is provided with a filtering device outlet and a second connecting port; the top of the first filtering device and the top of the second filtering device are respectively provided with an exhaust port 7;
the output end of the A-section heat radiation oil conveying pipe 2 is connected with the inlet of a first filtering device 71, the first end of a connecting pipe assembly 8 is connected with the first connecting port of the first filtering device, and the second end of the connecting pipe assembly 8 is connected with the inlet of a second filtering device of the second filtering device; the outlet of the second filter device is connected with one end of an output pipe assembly 9, and the other end of the output pipe assembly 9 is connected with the input end of a B-section heat radiation oil conveying pipe 12;
the first filtering device is provided with a first stainless steel filter element 4, and a first filtering shell 400 is wrapped outside the first stainless steel filter element 4; the bottom of the first filtering device is provided with a first filter element flange 6, and the first filter element flange 6 is respectively connected with the bottom of the first stainless steel filter element 4 and the bottom of the first filtering shell 400 in a sealing way; the second heater 62 is arranged on the first filter element flange 6, and the second heater 62 is arranged between the first stainless steel filter element 4 and the first filter housing 400; a first alumina ceramic heat radiator connecting electrode is arranged on the outer side surface of the first filter element flange 6;
the second filtering device is provided with a second stainless steel filter element 10, and a second filtering shell 100 wraps the outside of the second stainless steel filter element 10; the bottom of the second filtering device is provided with a second filter element flange 101, and the second filter element flange 101 is respectively connected with the bottom of the second stainless steel filter element 10 and the bottom of the second filtering shell 100 in a sealing way; the second heater 62 is arranged on the second filter element flange 101, and the second heater 62 is arranged between the second stainless steel filter element 10 and the second filter shell 100;
the outer side surface of the first filter element flange 6 and the outer side surface of the second filter element flange 101 are respectively provided with a second heater connecting electrode 5;
the second heater 62 employs an alumina ceramic heat radiator.
In the present embodiment, the filter assembly 26 includes: a primary fine filter 27, a secondary fine filter 28 and a fine filter connection 11;
the primary fine filter 27 and the secondary fine filter 28 are respectively communicated with the fine filter connecting device 11; the fine filter connecting device 11 is provided with a filter assembly 26 input end and a filter assembly 26 output end; diesel oil enters the fine filter connecting device 11 through the input end of the fine filter assembly 26, enters the first-stage fine filter 27 through the fine filter connecting device 11, enters the second-stage fine filter 28 through the fine filter connecting device 11, and is finally output through the output end of the fine filter assembly 26 of the fine filter connecting device 11;
the first-stage fine filter 27 and the second-stage fine filter 28 are respectively provided with a fine filter heater;
the fine filter heater is connected with the temperature control processing module, and the temperature control processing module controls the fine filter heater to be opened and closed.
In the present embodiment, the purifier 53 includes: a purification bin 32, wherein the purification bin 32 is provided with a purifier inlet 30 and a purifier outlet 33; a stainless steel magnetizer 322 is fixedly arranged inside the purifying bin 32;
the stainless steel magnetizer 322 is provided with a stainless steel shell, and a stainless steel permanent magnet bar is fixedly arranged inside the stainless steel shell.
In this embodiment, the oil-water separator 51 includes: the filter element assembly is fixedly arranged at the top of the filter element assembly; as shown in fig. 4 and 5.
The filter element assembly comprises a filter element shell 22A, a filter element 23A and a filter element inner support 24A, the top of the filter element assembly is provided with a filter element assembly oil inlet hole and a filter element assembly oil outlet, the filter element assembly oil inlet hole interface 4A is communicated with the filter element assembly oil inlet hole, and the filter element assembly oil outlet interface 5A is communicated with the filter element assembly oil outlet; the lower part of the filter element shell 22A is provided with a water accumulation cup 21;
a fourth heater 22 and a water level sensor 23 are arranged in the water accumulation cup 21; the water level sensor 23 is connected with the temperature control processing module, and the water level sensor 23 transmits the sensed water level to the temperature control processing module.
Strain a seat assembly including straining a seat casing 1A and thermal power valve, strain and be equipped with input port 3A, filter core assembly inlet port interface 4A, filter core assembly oil-out interface 5A, delivery outlet 6A, oil return 7A and thermovent 8A on the seat casing 1A, input port 3A with filter core assembly inlet port interface 4A communicates through input channel 9A, filter core assembly oil-out interface 5A with delivery outlet 6A communicates through output channel 10A, its characterized in that: the oil return port 7A is connected with the thermal valve through an oil return passage 11A, the heat dissipation port 8A is connected with the thermal valve through a heat dissipation passage 12A, and the input passage 9A is connected with the thermal valve through a heat recycling passage 13A;
the thermal power valve comprises a thermal power valve core 14A, a thermal power device and a return spring 15A, the thermal power device comprises a thermal power device shell 16A filled with thermal wax and a push rod 17A, the thermal power device shell 16A is fixedly connected with the filter base shell 1A, and the thermal power device shell 16A is positioned in the output channel 10A; a thermal valve chamber 18A is arranged in the filter base housing 1A, the oil return port 7A is communicated with the thermal valve chamber 18A through the oil return passage 11A, the heat dissipation port 8A is connected with an upper port of the thermal valve chamber 18A through the heat dissipation passage 12A, and the input passage 9A is connected with a lower port of the thermal valve chamber 18A through the heat reuse passage 13A; the thermal valve core 14A is slidably disposed in the thermal valve chamber 18A, the thermal valve core 14A is fixedly connected with the push rod 17A, the return spring 15A is disposed between the thermal valve core 14A and the filter seat housing 1A, and the thermal valve core 14A moves to open or close the upper port or the lower port of the thermal valve chamber 18A;
a first one-way valve 19A is arranged in the oil return channel 11A; a second one-way valve 20A is arranged in the heat dissipation channel 12A; a third check valve 21A is provided in the input passage 9A.
When the engine is in cold start, if the oil temperature detected by the constant temperature controller 27 is lower than the specification of the GB/T18297-2001 rack performance test standard, the far infrared ceramic heat radiator 26 is started to heat the diesel oil, and the sufficient diesel oil supply and the smooth start of the engine in cold start are ensured.
After the engine is in cold start operation, if the oil temperature detected by the constant temperature controller 27A does not reach the specifications of the GB/T18297-2001 rack performance test standard item 6 and item 6.5, the far infrared ceramic heat radiator 26A is controlled to heat the diesel oil, and the oil temperature is stabilized within the range specified by the GB/T18297-2001 standard.
After the engine is cold started and operated, if the oil temperature in the output channel 10 is lower than the specification of GB/T18297-2001 rack performance test standard item 6 and item 6.5, the push rod 17 is in a retraction state under the action of the return spring 15, at this time, the upper port of the thermal valve chamber 18A is closed, the lower port of the thermal valve chamber is opened, high-temperature diesel oil which is delivered to the injection pump through the oil delivery pump to lubricate and dissipate heat of the plunger coupling part and carries mechanical heat back sequentially passes through the oil return channel 11, the thermal valve chamber 18A and the heat reuse channel 13 to enter the input channel 9A, and then enters the filter element 23A after being mixed with the low-temperature diesel oil, so as to prevent the low-temperature diesel oil from separating out oil wax grains to block the. When the oil temperature exceeds the GB/T18297-2001 rack performance test standard, thermal wax in the thermal power device shell 16A is heated to generate mechanical expansion force, so that the push rod 17A gradually extends out, the upper port of the thermal power valve chamber 18A is gradually opened, the lower port of the thermal power valve chamber is gradually closed, and all or part of high-temperature diesel oil sequentially passes through the oil return channel 11A, the thermal power valve chamber 18A and the heat dissipation channel 12A and enters the oil tank for heat dissipation.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. A diesel engine fuel constant temperature purifies management system which characterized in that includes: the oil tank (50), an A-section heat radiation oil delivery pipe (2), a rough filtering assembly (3), an output pipe assembly (9), a B-section heat radiation oil delivery pipe (12), an oil-water separator (51), a C-section heat radiation oil delivery pipe (24), an oil delivery pump assembly (52), a D-section heat radiation oil delivery pipe (25), a filter assembly (26), an E-section heat radiation oil delivery pipe (29), a purifier (53), an F-section heat radiation oil delivery pipe (34), an H-section heat radiation oil delivery pipe (35), an oil return pipe (42) and a temperature control unit;
an oil outlet is formed in the bottom of the oil tank (50), the oil outlet is provided with an infrared heater (1), an oil temperature sensor of the oil tank and a first oil temperature sensor (T01), and the oil temperature sensor of the oil tank and the infrared heater (1) are arranged inside the oil tank (50); the first oil temperature sensor (T01) is arranged outside the oil tank (50);
the input end of the section A heat radiation oil conveying pipe (2) is connected with an oil outlet of an oil tank, and the output end of the section A heat radiation oil conveying pipe (2) is connected with an inlet of a rough filtering assembly (3); one end of an output pipe component (9) is connected with an outlet of the rough filtering assembly (3), the other end of the output pipe component (9) is connected with an input end of a section B of heat radiation oil conveying pipe (12), an output end of the section B of heat radiation oil conveying pipe (12) is connected with an input end of an oil-water separator (51), an output end of the oil-water separator (51) is connected with an input end of a section C of heat radiation oil conveying pipe (24), an output end of the section C of heat radiation oil conveying pipe (24) is connected with an input end of an oil conveying pump component (52), and an input end of the oil conveying pump component (52) is connected with a second oil temperature sensor (T; the output end of the oil transportation pump assembly (52) is connected with the input end of a D-section heat radiation oil transportation pipe (25), the output end of the D-section heat radiation oil transportation pipe (25) is connected with the input end of a filter assembly (26), the output end of the filter assembly (26) is connected with the input end of an E-section heat radiation oil transportation pipe (29), the output end of the E-section heat radiation oil transportation pipe (29) is connected with the inlet of a purifier (53), the outlet of the purifier (53) is connected with the input end of an F-section heat radiation oil transportation pipe (34), the output end of the F-section heat radiation oil transportation pipe (34) is connected with the oil return input end of the oil transportation pump assembly (52), the oil return output end of the oil transportation pump assembly (52) is connected with the input end of an H-section heat radiation oil transportation pipe (35), the output end of the H-section heat radiation oil transportation pipe (35) is connected with the oil return input;
a first heater (61) is arranged at the position, close to the infrared heater (1), of the input end of the A-section heat radiation oil conveying pipe (2); a second heater (62) is arranged inside the rough filtering assembly (3), a third heater (63) is arranged at the input end of the B-section heat radiation oil conveying pipe (12), a fourth heater (22) is arranged inside the oil-water separator (51), a fifth heater (65) is arranged at the input end of the C-section heat radiation oil conveying pipe (24), a sixth heater (66) is arranged at the output end of the D-section heat radiation oil conveying pipe (25), a seventh heater (67) is arranged at the input end of the E-section heat radiation oil conveying pipe (29), an eighth heater (68) is arranged at the input end of the F-section heat radiation oil conveying pipe (34), and a ninth heater (69) is arranged at the output end of the H-section heat;
the temperature control unit includes: the temperature control processing module and the temperature acquisition module;
the temperature acquisition module is respectively connected with a first oil temperature sensor (T01) and a second oil temperature sensor (T02), acquires the oil temperature at the oil outlet of the oil tank through the first oil temperature sensor (T01), acquires the inlet oil temperature of the oil delivery pump (52) through the second oil temperature sensor (T02), and transmits the acquired oil temperature to the temperature control processing module;
the temperature acquisition module, the infrared heater (1), the first heater (61), the second heater (62), the third heater (63), the fourth heater (22), the fifth heater (65), the sixth heater (66), the seventh heater (67), the ninth heater (69) and the eighth heater (68) are respectively connected with the temperature control processing module, the temperature control processing module is used for comparing the acquired oil temperature of an oil outlet of the oil tank and the acquired oil temperature of an inlet of the oil transfer pump (52) with a preset threshold value respectively, when the acquired oil temperatures are not within the preset threshold value range, the temperature control processing module respectively controls the infrared heater (1), the first heater (61), the second heater (62), the third heater (63), the fourth heater (22), the fifth heater (65), the sixth heater (66), the seventh heater (67), the ninth heater (69) and the eighth heater (68) to be turned on, heating the oil temperature in the system, and stopping heating when the oil temperature in the system reaches a preset threshold range.
2. The diesel engine fuel constant temperature purge management system of claim 1,
the temperature control unit further includes: the system comprises a diesel oil grade setting module, an oil heating starting temperature setting module, an oil temperature upper limit value setting module and an oil tank temperature threshold value setting module;
the system comprises a diesel oil grade setting module, an oil heating starting temperature setting module, an oil temperature upper limit value setting module and an oil tank temperature threshold value setting module, wherein the oil temperature upper limit value setting module and the oil tank temperature threshold value setting module are respectively connected with a temperature control processing module and are used for transmitting set parameter data to the temperature control processing module;
the diesel grade setting module is used for setting the grade of diesel in the system, and the grade of the diesel comprises the following components: 5# diesel, 0# diesel, 10# diesel, 20# diesel, 35# diesel and 50# diesel;
the oil heating starting temperature setting module is used for setting the heating starting temperature of the diesel oil of each grade; when 5# diesel oil is in the system, setting the temperature of the oil lower than 7 ℃ as the starting temperature of the heater before the system is started; when 0# diesel oil is in the system, setting the temperature of the oil to be lower than 5 ℃ as the starting temperature of the heater before the system is started; when-10 # diesel oil is in the system, setting the temperature of the oil lower than-4 ℃ as the starting temperature of the heater before the system is started; when-20 # diesel oil is in the system, setting the temperature of the oil lower than-13 ℃ as the starting temperature of the heater before the system is started; when the diesel oil is-35 # diesel oil in the system, setting the temperature of the oil below-28 ℃ as the starting temperature of the heater before the system is started; when the diesel oil is-50 # diesel oil in the system, the oil temperature is lower than-43 ℃ before the system is started, and the starting temperature of a heater is set;
the oil temperature upper limit value setting module is used for setting the heating temperature upper limit values of the diesel oil of each grade;
when 5# diesel oil is in the system and the temperature of the system oil is heated to be higher than 8 ℃, stopping heating the diesel oil in the oil tank and the oil conveying pipe respectively;
when 0# diesel oil is in the system and the heating temperature of the system oil is higher than 7 ℃, stopping heating the diesel oil in the oil tank and the oil conveying pipe respectively;
when the system is-10 # diesel oil and the temperature of the system oil is heated to be higher than-3 ℃, stopping heating the diesel oil in the oil tank and the oil conveying pipe respectively;
when the system is-20 # diesel oil and the temperature of the system oil is heated to be higher than-12 ℃, stopping heating the diesel oil in the oil tank and the oil conveying pipe respectively;
when the temperature of the system oil is higher than-27 ℃, stopping heating the diesel oil in the oil tank and the oil conveying pipe respectively;
when the temperature of the system oil is higher than minus 42 ℃, stopping heating the diesel oil in the oil tank and the oil conveying pipe respectively;
the oil tank temperature threshold setting module is used for setting the temperature control range of each level of diesel oil in the oil tank;
when 5# diesel oil is filled in the oil tank, the oil temperature control range of the oil tank is 13 +/-2 ℃;
when 0# diesel oil is in the system, the oil temperature control range of the oil tank is 8 +/-2 ℃;
when-10 # diesel oil is in the system, the oil temperature control range of the oil tank is 0 +/-2 ℃;
when-20 # diesel oil is in the system, the oil temperature control range of the oil tank is-10 +/-2 ℃;
when-35 # diesel oil is in the system, the oil temperature control range of the oil tank is-25 +/-2 ℃;
when the system is 50# diesel, the oil temperature control range of the oil tank is 40 +/-2 ℃.
3. Diesel engine fuel thermostatic purification management system as set forth in claim 1 or 2,
the temperature control unit further includes: an oil temperature threshold control module at the input end of the oil delivery pump;
the oil temperature threshold control module at the input end of the oil delivery pump is connected with the temperature control processing module and is used for transmitting the oil temperature threshold at the input end of the oil delivery pump to the temperature control processing module;
the oil temperature threshold control module at the input end of the oil delivery pump is used for setting the oil temperature threshold of diesel oil of each grade at the input end of the oil delivery pump;
when 5# diesel oil is filled in the oil tank, the oil temperature control range of the oil tank is 50 +/-2 ℃;
when 0# diesel oil is in the system, the oil temperature control range of the oil tank is 40 +/-2 ℃;
when-10 # diesel oil is in the system, the oil temperature control range of the oil tank is 30 +/-2 ℃;
when-20 # diesel oil is in the system, the oil temperature control range of the oil tank is-6 +/-2 ℃;
when-35 # diesel oil is in the system, the oil temperature control range of the oil tank is-18 +/-2 ℃;
when the system is 50# diesel, the oil temperature control range of the oil tank is 35 ℃ below zero plus or minus 2 ℃.
4. The diesel engine fuel constant temperature purge management system of claim 2,
the temperature control unit further includes: the system comprises a display screen, a diesel oil grade setting knob, an electric leakage protection module and a heater short-circuit protection module, wherein the electric leakage protection module is used for carrying out electric leakage protection on the system when the system has an electric leakage fault, and the heater short-circuit protection module is used for protecting the system when the heater has a short-circuit fault;
the diesel grade setting knob is connected with the temperature control processing module and is used for setting the current diesel grade in the system and transmitting the current diesel grade in the set system to the temperature control processing module;
the temperature control processing module is connected with the display screen and is used for displaying the current oil temperature of the system and displaying the operating parameters of the system;
the temperature control processing module and the display adopt Modbus protocol communication;
the temperature control processing module comprises: the device comprises a storage, an EEPROM register, a singlechip and a singlechip peripheral circuit;
the storage device stores system data parameters, control instructions of the single chip microcomputer and temperature parameters sensed by the first oil temperature sensor (T01) and the second oil temperature sensor (T02);
the infrared heater (1) adopts a far infrared heat radiator;
the singlechip adopts an STC15W404AS singlechip.
5. Diesel engine fuel thermostatic purification management system as set forth in claim 1 or 2,
the strainer assembly (3) includes: a connecting pipe assembly (8), an output pipe assembly (9), a first filter device (71) and a second filter device (72);
the first filtering device and the second filtering device are arranged in parallel; the top of the first filtering device is provided with a filtering device inlet and a first connecting port; the top of the second filtering device is provided with a filtering device outlet and a second connecting port; the top of the first filtering device and the top of the second filtering device are respectively provided with an exhaust port (7);
the output end of the A-section heat radiation oil conveying pipe (2) is connected with the inlet of a first filtering device (71), the first end of a connecting pipe assembly (8) is connected with the first connecting port of the first filtering device, and the second end of the connecting pipe assembly (8) is connected with the inlet of a second filtering device of the second filtering device; the outlet of the filtering device of the second filtering device is connected with one end of an output pipe component (9), and the other end of the output pipe component (9) is connected with the input end of a B-section heat radiation oil conveying pipe (12);
the first filtering device is provided with a first stainless steel filter element (4), and a first filtering shell (400) is wrapped outside the first stainless steel filter element (4); the bottom of the first filtering device is provided with a first filter element flange (6), and the first filter element flange (6) is respectively in sealing connection with the bottom of the first stainless steel filter element (4) and the bottom of the first filtering shell (400); the second heater (62) is arranged on the first filter element flange (6), and the second heater (62) is arranged between the first stainless steel filter element (4) and the first filtering shell (400); a first alumina ceramic heat radiator connecting electrode is arranged on the outer side surface of the first filter element flange (6);
the second filtering device is provided with a second stainless steel filter element (10), and a second filtering shell (100) is wrapped outside the second stainless steel filter element (10); a second filter element flange (101) is arranged at the bottom of the second filtering device, and the second filter element flange (101) is respectively in sealing connection with the bottom of the second stainless steel filter element (10) and the bottom of the second filtering shell (100); the second heater (62) is arranged on the second filter element flange (101), and the second heater (62) is arranged between the second stainless steel filter element (10) and the second filtering shell (100);
the outer side surface of the first filter element flange (6) and the outer side surface of the second filter element flange (101) are respectively provided with a second heater connecting electrode (5);
the second heater (62) is an alumina ceramic heat radiator.
6. Diesel engine fuel thermostatic purification management system as set forth in claim 1 or 2,
the filter assembly (26) includes: a primary fine filter (27), a secondary fine filter (28) and a fine filter connection device (11);
the primary fine filter (27) and the secondary fine filter (28) are respectively communicated with the fine filter connecting device (11); the fine filter connecting device (11) is provided with a filter assembly (26) input end and a filter assembly (26) output end; diesel oil enters a fine filter connecting device (11) through an input end of a filter component (26), enters a first-stage fine filter (27) through the fine filter connecting device (11), enters a second-stage fine filter (28) through the fine filter connecting device (11), and is finally output through an output end of the filter component (26) of the fine filter connecting device (11);
the first-stage fine filter (27) and the second-stage fine filter (28) are respectively provided with a fine filter heater;
the fine filter heater is connected with the temperature control processing module, and the temperature control processing module controls the fine filter heater to be opened and closed.
7. Diesel engine fuel thermostatic purification management system as set forth in claim 1 or 2,
the purifier (53) comprises: the purification bin (32), the purification bin (32) is provided with a purifier inlet (30) and a purifier outlet (33); a stainless steel strong magnetic device (322) is fixedly arranged in the purifying bin (32);
the stainless steel magnetizer (322) is provided with a stainless steel shell, and a stainless steel permanent magnet bar is fixedly arranged in the stainless steel shell.
8. Diesel engine fuel thermostatic purification management system as set forth in claim 1 or 2,
the oil-water separator (51) comprises: the filter element assembly is fixedly arranged at the top of the filter element assembly;
the filter element assembly comprises a filter element shell (22A), a filter element (23A) and a filter element inner support (24A), the top of the filter element assembly is provided with a filter element assembly oil inlet hole and a filter element assembly oil outlet, a filter element assembly oil inlet hole interface (4A) is communicated with the filter element assembly oil inlet hole, and a filter element assembly oil outlet interface (5A) is communicated with the filter element assembly oil outlet; a water collecting cup (21) is arranged at the lower part of the filter element shell (22A);
a fourth heater (22) and a water level sensor (23) are arranged in the water collecting cup (21); the fourth heater (22) and the water level sensor (23) are connected with the temperature control processing module, and the water level sensor (23) transmits the sensed water level to the temperature control processing module.
9. The diesel engine fuel thermostatic purification management system as set forth in claim 8,
strain a seat assembly including straining a seat casing (1A) and thermal power valve, strain and be equipped with input port (3A), filter core assembly inlet port interface (4A), filter core assembly oil-out interface (5A), delivery outlet (6A), oil return opening (7A) and thermovent (8A) on seat casing (1A), input port (3A) with filter core assembly inlet port interface (4A) is through input channel (9A) intercommunication, filter core assembly oil-out interface (5A) with delivery outlet (6A) is through output channel (10A) intercommunication, its characterized in that: the oil return port (7A) is connected with the thermal valve through an oil return channel (11A), the heat dissipation port (8A) is connected with the thermal valve through a heat dissipation channel (12A), and the input channel (9A) is connected with the thermal valve through a heat recycling channel (13A);
the thermal power valve comprises a thermal power valve core (14A), a thermal power device and a return spring (15A), the thermal power device comprises a thermal power device shell (16A) filled with thermal wax and a push rod (17A), the thermal power device shell (16A) is fixedly connected with the filter base shell (1A), and the thermal power device shell (16A) is positioned in the output channel (10A); a thermal valve chamber (18A) is arranged in the filter base shell (1A), the oil return port (7A) is communicated with the thermal valve chamber (18A) through the oil return channel (11A), the heat dissipation port (8A) is connected with the upper port of the thermal valve chamber (18A) through the heat dissipation channel (12A), and the input channel (9A) is connected with the lower port of the thermal valve chamber (18A) through the heat reuse channel (13A); the thermal valve core (14A) is slidably arranged in the thermal valve chamber (18A), the thermal valve core (14A) is fixedly connected with the push rod (17A), the return spring (15A) is arranged between the thermal valve core (14A) and the filter seat shell (1A), and the movement of the thermal valve core (14A) can open or close the upper port or the lower port of the thermal valve chamber (18A);
a first one-way valve (19A) is arranged in the oil return channel (11A); a second one-way valve (20A) is arranged in the heat dissipation channel (12A); a third one-way valve (21A) is arranged in the input channel (9A).
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CN107476904B (en) * 2017-08-21 2022-08-05 淄博盛鼎瑞电器科技有限公司 Heat recycling filter base assembly and oil-water separator
CN112474052B (en) * 2020-11-09 2021-06-04 崇左南方水泥有限公司 Oil vapor recovery device for cement lubricating station
CN114962099A (en) * 2021-12-22 2022-08-30 中国船舶重工集团公司第七一一研究所 High-power diesel engine fuel oil pretreatment system
CN115045784B (en) * 2022-06-20 2024-02-23 陕西柴油机重工有限公司 Heavy oil storage device for large medium-speed diesel engine test run and method thereof

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