CN115045782B - Fuel cooling system, engineering machinery and oil liquid sampling method thereof - Google Patents
Fuel cooling system, engineering machinery and oil liquid sampling method thereof Download PDFInfo
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- CN115045782B CN115045782B CN202210736084.XA CN202210736084A CN115045782B CN 115045782 B CN115045782 B CN 115045782B CN 202210736084 A CN202210736084 A CN 202210736084A CN 115045782 B CN115045782 B CN 115045782B
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- 238000005070 sampling Methods 0.000 title claims abstract description 101
- 239000000446 fuel Substances 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000001816 cooling Methods 0.000 title claims abstract description 29
- 239000007788 liquid Substances 0.000 title claims abstract description 21
- 230000017525 heat dissipation Effects 0.000 claims abstract description 44
- 239000002828 fuel tank Substances 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims description 208
- 238000004891 communication Methods 0.000 claims description 13
- 230000002159 abnormal effect Effects 0.000 claims description 5
- 239000000295 fuel oil Substances 0.000 claims description 4
- 239000010729 system oil Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000002283 diesel fuel Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/20—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for cooling
-
- 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
- F02M31/20—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for cooling
- F02M31/205—Control
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1031—Sampling from special places
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Hydrology & Water Resources (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Testing Of Engines (AREA)
Abstract
The invention relates to the technical field of engineering machinery and discloses a fuel cooling system, engineering machinery and a fuel sampling method thereof, comprising a fuel radiator arranged in a fuel return flow path of an engine and a fuel tank, wherein the fuel radiator comprises an oil inlet, an oil outlet, an oil inlet passage arranged on one side and connected with the oil inlet, an oil outlet passage arranged on the other side and connected with the oil outlet, and heat dissipation chambers, at least 2 heat dissipation chambers are longitudinally arranged, at least 2 heat dissipation chambers are transversely arranged, and two ends of the heat dissipation chambers are respectively connected with the oil inlet passage and the oil outlet passage arranged on two sides of the heat dissipation chambers; a control valve for controlling the oil liquid circulation in the lower heat dissipation chamber is arranged between the upper heat dissipation chamber and the lower heat dissipation chamber, and the lower heat dissipation chamber is configured to store the oil liquid. The beneficial effects of the invention are as follows: the oil liquid sampling can be completed in real time in the normal operation of the whole engineering machinery.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to a fuel cooling system, engineering machinery and an oil liquid sampling method thereof.
Background
The oil liquid of the engineering machinery is generally diesel oil, and along with the continuous improvement of the national standard, whether the tail gas discharged by the engineering machinery is qualified or not is an important standard for checking whether the engineering machinery meets the national standard requirement or not, the quality of the diesel oil directly influences the tail gas components discharged by the engineering machinery, and the monitoring work of the quality of the diesel oil is more important after the emission is upgraded. At present, the quality of diesel oil is difficult to monitor, and the diesel oil is mainly sampled on site, but the on-site sampling has time difference, and the monitoring result deviation is larger.
Chinese patent application CN114604083a (application No. 202210240253.0) discloses an engineering vehicle oil tank system, an engineering vehicle and an automatic oil sampling method, in which immediate sampling is completed through the oil return resistance of diesel oil, but when the oil amount of the diesel oil tank is small, sampling cannot be completed in real time.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a fuel cooling system, engineering machinery and an oil sampling method thereof, and the oil can be sampled in real time in the normal operation of the whole engineering machinery.
In order to achieve the above purpose, the present invention provides the following technical solutions:
in a first aspect, the invention provides a fuel cooling system, which comprises a fuel radiator arranged in an oil return flow path of an engine and an oil tank, wherein the fuel radiator comprises an oil inlet, an oil outlet, an oil inlet passage arranged on one side and connected with the oil inlet, an oil outlet passage arranged on the other side and connected with the oil outlet, and heat dissipation chambers, the oil inlet passage and the oil outlet passage are longitudinally arranged, at least 2 heat dissipation chambers are transversely arranged, and two ends of the heat dissipation chambers are respectively connected with the oil inlet passage and the oil outlet passage arranged on two sides of the heat dissipation chambers; the control valve is arranged between the upper heat dissipation chamber and the lower heat dissipation chamber to control oil liquid flowing in the lower heat dissipation chamber, the corresponding oil inlet passage section and the corresponding oil return passage section are configured to store the oil liquid, when the oil liquid needs to be sampled, the control valve closes an oil way of the lower heat dissipation chamber to enable the oil liquid to be stored in the lower heat dissipation chamber for sampling, and the oil inlet passage, the upper heat dissipation chamber and the oil outlet passage still form an oil return oil way, so that the execution of the functions of the fuel cooling system can still be ensured.
With reference to the first aspect, further, the control valve includes a first control valve and a second control valve, the first control valve is disposed on the oil inlet passage, divides the oil inlet passage into a first oil inlet passage and a second oil inlet passage, and the second control valve is disposed on the oil outlet passage, and divides the oil outlet passage into a first oil outlet passage and a second oil outlet passage; the first oil inlet passage, the upper heat dissipation chamber and the first oil outlet passage form a first oil return flow path, and the second oil inlet passage, the lower heat dissipation chamber and the second oil outlet passage form a second oil return flow path; the first control valve and the second control valve are used for closing or conducting the second oil return flow path.
In general, the first control valve and the second control valve are opened, and the oil normally passes through the second oil return flow path of the flowing fuel oil radiator. When oil is required to be sampled, the first control valve closes the passage from the first oil inlet passage to the second oil inlet passage, and the second control valve closes the circulation passage from the second oil return passage to the first oil return passage, so that the oil in the second oil return passage can not flow any more and is stored for sampling, and the closed states of the first control valve and the second control valve are always kept before the sampling is finished, so that the real-time sampling of the oil is realized; and after the sampling is finished, opening the first control valve and the second control valve.
In combination with the first aspect, the device further comprises a controller electrically connected with the control valve, wherein the controller is used for controlling the valve position of the control valve to close the second oil return flow path or conduct the second oil return flow path according to the received sampling demand signal and the sampling end signal.
With reference to the first aspect, further, the controller is a complete machine controller of the engineering machinery.
With reference to the first aspect, the system further comprises a communication module, wherein the communication module is electrically connected with the controller and the engine respectively and is used for identifying and converting an abnormal operation signal of the engine into a sampling demand signal and transmitting the sampling demand signal to the controller; and is also configured to transmit the received samplings status signal from the controller to the remote terminal of the host plant; and is also used for receiving a sampling end signal sent by an operator remotely or in the field and transmitting the sampling end signal to the controller.
In combination with the first aspect, a sampling joint is further arranged on a channel at the lower part of the fuel oil radiator, and when the oil is required to be sampled, the sampling joint is unscrewed to take out the oil; preferably, the sampling joint is arranged at the bottom of the fuel radiator; preferably, the sampling connector is in threaded connection with a sampling port arranged on a channel at the bottom of the fuel radiator.
Furthermore, the sampling connector is not required to be arranged on the fuel radiator, a sampling person can directly take down the fuel radiator and open the second control valve to directly pour out the oil sample, and the sampling process can be repeated.
With reference to the first aspect, further, the second control valve is a check valve or a solenoid valve.
With reference to the first aspect, further, the first control valve is a solenoid valve.
In a second aspect, the invention provides an engineering machine, which comprises an engine, an oil tank and the fuel cooling system in any one of the above technical schemes, wherein the oil inlet is connected with the engine, and the oil outlet is connected with the oil tank.
In a third aspect, the present invention provides an oil sampling method for an engineering machine, and the method includes the following steps that:
judging whether a complete machine controller of the engineering machinery where the fuel cooling system is located receives a sampling demand signal or not;
if the sampling demand signal is received, closing the second oil return flow path;
the sampled oil remains in the second oil return flow path, and the system oil completely flows back to the oil tank through the first oil return flow path.
With reference to the third aspect, the method further includes feeding back the signal of the end of sampling to the controller by the operator through the communication module after the end of sampling, and controlling the valve position of the control valve to conduct the second oil return flow path after the controller receives the signal of the end of sampling.
Compared with the prior art, the invention provides a fuel cooling system, engineering machinery and an oil liquid sampling method thereof, which have the following beneficial effects:
(1) According to the fuel cooling system, the oil sample can be normally stored in the fuel radiator and can be taken out from the fuel radiator according to the requirement.
(2) The fuel cooling system can realize continuous sampling for a plurality of times by adding the heat dissipation chamber, the control valve, the sampling joint and the passage, and can be reused after oil is taken.
(3) The engineering machinery can complete the sampling of oil in real time in the normal operation of the whole engineering machinery.
(4) According to the oil liquid sampling method, the oil liquid in the fuel oil radiator is sampled in real time according to the external signal requirement.
Drawings
FIG. 1 is a schematic cross-sectional front view of a fuel cooling system according to some embodiments of the present invention;
FIG. 2 is a schematic flow chart of an oil sampling method for an engineering machine according to other embodiments of the present invention;
FIG. 3 is a schematic diagram illustrating control logic of an oil sampling method for an engineering machine according to another embodiment of the present invention.
The meaning of the reference numerals in the figures is:
1. a fuel radiator; 1-1, an oil inlet; 1-2, an oil outlet; 1-3, a first oil inlet passage; 1-4, a second oil inlet passage; 1-5, a first oil outlet passage; 1-6, a second oil outlet passage; 2. a controller; 3. a first control valve; 4. a second control valve; 5. a first oil return flow path; 6. a second oil return flow path; 7. and a communication module.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may also include different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the protection of the present invention.
As shown in fig. 1, the invention provides a fuel cooling system, which comprises a fuel radiator 1 arranged in a return flow path of an engine and a fuel tank, wherein the fuel radiator 1 comprises an oil inlet 1-1, an oil outlet 1-2, an oil inlet passage arranged on one side and connected with the oil inlet 1-1, an oil outlet passage arranged on the other side and connected with the oil outlet 1-2, and heat dissipation chambers, the oil inlet passage and the oil outlet passage are longitudinally arranged, at least 2 heat dissipation chambers are transversely arranged, and two ends of the heat dissipation chambers are respectively connected with the oil inlet passage and the oil outlet passage arranged on two sides of the heat dissipation chambers; the control valve is arranged between the upper heat dissipation chamber and the lower heat dissipation chamber to control the oil liquid in the lower heat dissipation chamber to circulate, the lower heat dissipation chamber, a part of oil inlet passage and an oil outlet passage are arranged to store the oil liquid, when the oil liquid needs to be sampled, the control valve closes the oil way of the lower heat dissipation chamber, so that the oil liquid is stored in the lower heat dissipation chamber, the part of oil inlet passage and the part of oil outlet passage for sampling, and the oil inlet passage, the upper heat dissipation chamber and the oil outlet passage still form an oil return oil way, so that the execution of the functions of the fuel cooling system can be ensured.
In other embodiments, the control valve comprises a first control valve 3 and a second control valve 4, the first control valve 3 is arranged on the oil inlet passage, the oil inlet passage is divided into a first oil inlet passage 1-3 and a second oil inlet passage 1-4, the second control valve 4 is arranged on the oil outlet passage, and the oil outlet passage is divided into a first oil outlet passage 1-5 and a second oil outlet passage 1-6; the first oil inlet passage 1-3, the upper heat dissipation chamber and the first oil outlet passage 1-5 form a first oil return flow path 5, and the second oil inlet passage 1-4, the lower heat dissipation chamber and the second oil outlet passage 1-6 form a second oil return flow path 6; the first control valve 3 and the second control valve 4 are used to close or open the second oil return flow path 6.
In general, the first control valve 3 and the second control valve 4 are opened, and the oil normally passes through the second return flow path 6 of the flow oil radiator 1. When oil is required to be sampled, the first control valve 3 closes the passage from the first oil inlet passage 1-3 to the second oil inlet passage 1-4, and the second control valve 4 closes the passage from the second oil return passage to the first oil return passage, so that the oil in the second oil return passage 6 can not flow any more and is stored for sampling, and the closed states of the first control valve 3 and the second control valve 4 are always kept before the sampling is finished, so that the real-time sampling of the oil is realized; after the sampling is completed, the first control valve 3 and the second control valve 4 are opened again.
In other embodiments, the fuel cooling system further includes a controller 2 electrically connected to the control valve, where the controller 2 is configured to control a valve position of the control valve to close the second oil return flow path 6 or to conduct the second oil return flow path 6 according to the received sampling demand signal and the sampling end signal.
In other embodiments, the controller 2 is a work machine overall controller.
In other embodiments, the fuel cooling system further comprises a communication module 7, wherein the communication module 7 is electrically connected with the controller 2 and the engine respectively, and is used for identifying and converting an abnormal operation signal of the engine into a sampling demand signal, and then transmitting the sampling demand signal to the controller 2; and is also used for transmitting the received samplings status signals from the controller 2 to the remote terminal of the host factory; and is also operative to receive a sampled sampling status signal (i.e., end of sampling signal) from an operator, either remotely or in the field, and to transmit the end of sampling signal to the controller 2.
In other embodiments, a sampling joint is arranged on a channel at the lower part of the fuel radiator 1, and when the oil needs to be sampled, the sampling joint is unscrewed to take out the oil; preferably, the sampling joint is arranged at the bottom of the fuel radiator 1; preferably, the sampling connector is in threaded connection with a sampling port provided on a channel at the bottom of the fuel radiator 1.
In other embodiments, the sampling connector may not be provided on the fuel radiator 1, the sampling personnel may directly take the fuel radiator 1 and open the second control valve 4 to directly pour out the oil sample, and the sampling process may be repeated.
In other embodiments, the second control valve 4 is a one-way valve or a solenoid valve.
When the second control valve 4 is a one-way valve, the first oil outlet passage 1-5 cannot circulate like the second oil outlet passage 1-6 because the second control valve 4 is a one-way valve, but the second oil outlet passage 1-6 can circulate to the first oil outlet passage 1-5, the controller 2 and the second control valve 4 have no control relationship, and the controller 2 only needs to control the closing and opening of the first control valve 3 to realize the functions of oil storage and sampling of the fuel cooling system.
When the second control valve 4 is a solenoid valve, the controller 2 is electrically connected with the first control valve 3 and the second control valve 4 to control them to be closed and conducted simultaneously.
In other embodiments, the first control valve 3 is a solenoid valve.
In other embodiments, a status sensor is provided on the control valve or a pressure sensor is provided on the fuel radiator 1.
The status sensor is configured to send a signal to the controller 2 according to a change in the valve position of the control valve, for example, after the control valve is closed (when the valve position of the control valve is changed from an open working position to a closed working position), where the signal to be sent to the controller 2 by the status sensor is a sampable status signal.
The pressure sensor is configured to send a signal to the controller 2 according to the detected change of the pressure value in the fuel radiator 1, for example, after the control valve is closed, the second oil return flow path 6 stores oil for sampling, and at this time, the pressure value in the fuel radiator 1 is greater than a certain threshold, that is, the current state is a sampable state, and the pressure sensor sends a sampable state signal to the controller 2.
It should be noted that: the samplings status signal that can be sampled indicates that the staff member can de-sample; the sampled sampling status signal indicates that the worker has finished sampling.
The embodiment of the invention also provides engineering machinery, which comprises an engine, an oil tank and the fuel cooling system in any technical scheme, wherein the oil inlet 1-1 is connected with the engine, and the oil outlet 1-2 is connected with the oil tank.
As shown in fig. 2 and fig. 3, the embodiment of the invention further provides an oil sampling method for engineering machinery, and the method comprises the following steps of:
step S1: judging whether the engineering machinery complete machine controller 2 where the fuel cooling system is located receives a sampling demand signal or not;
step S2: if the sampling demand signal is received, closing the second oil return flow path 6;
step S3: the sampled oil remains in the second oil return flow path 6, and all the system oil flows back to the oil tank through the first oil return flow path 5.
In other embodiments, the oil sampling method of the engineering machine further includes that when the sampling is finished, an operator feeds back a signal of finishing the sampling to the controller 2 through the communication module 7, and the controller 2 controls the valve position of the control valve to conduct the second oil return flow path 6 according to the received signal of finishing the sampling.
In other embodiments, as shown in fig. 3, the oil sampling method control logic of the present invention is:
firstly, a sensor for monitoring the operation of an engine monitors abnormality and sends an abnormality signal to a communication module;
secondly, the communication module recognizes a received abnormal operation signal of the engine, converts the abnormal operation signal into a sampling demand signal and then sends the sampling demand signal to the controller;
thirdly, the controller closes the control valve according to the received sampling demand signal; after the control valve is closed, the second oil return flow path 6 stores oil for sampling, and at the moment, the sampling state is a sampable state; the state sensor or the pressure sensor feeds back a sampling state signal which can be sampled to the controller;
thirdly, the controller feeds back a message to a remote terminal of the host factory through the communication module so as to inform the host factory of timely dispatching personnel to sample on site;
and finally, after the sampling is finished, an operator sends a signal of finishing the sampling to the controller through the communication module, and after the controller receives the signal of finishing the sampling, the controller opens the control valve to conduct the second oil return flow path 6.
In other embodiments, the signal of the end of sampling may be a signal sent by a sampled operator (like the operator above), or may be sent to the controller by a pressure sensor (whether the oil is poured out through a sampling connector or a removed oil radiator, the pressure in the oil radiator is reduced, and when the pressure sensor detects that the pressure value is smaller than another threshold value, the signal indicates that the operator has finished sampling).
It is noted that in this application relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A fuel cooling system, characterized by: the oil radiator comprises an oil inlet, an oil outlet, an oil inlet passage arranged on one side and connected with the oil inlet, an oil outlet passage arranged on the other side and connected with the oil outlet, and heat dissipation chambers, wherein the oil inlet passage and the oil outlet passage are longitudinally arranged, at least 2 heat dissipation chambers are transversely arranged, and two ends of the heat dissipation chambers are respectively connected with the oil inlet passage and the oil outlet passage arranged on two sides of the heat dissipation chambers; a control valve for controlling the oil liquid in the lower heat dissipation chamber to circulate is arranged between the upper heat dissipation chamber and the lower heat dissipation chamber, the corresponding oil inlet passage section and the oil return passage section are configured to store the oil liquid;
the control valve comprises a first control valve and a second control valve, the first control valve is arranged on the oil inlet passage and divides the oil inlet passage into a first oil inlet passage and a second oil inlet passage, the second control valve is arranged on the oil outlet passage and divides the oil outlet passage into a first oil outlet passage and a second oil outlet passage; the first oil inlet passage, the upper heat dissipation chamber and the first oil outlet passage form a first oil return flow path, and the second oil inlet passage, the lower heat dissipation chamber and the second oil outlet passage form a second oil return flow path; the first control valve and the second control valve are used for closing or conducting the second oil return flow path.
2. A fuel cooling system according to claim 1, wherein: the controller is electrically connected with the control valve and is used for controlling the valve position of the control valve to close the second oil return flow path or conduct the second oil return flow path according to the received sampling demand signal and the sampling end signal.
3. A fuel cooling system according to claim 2, wherein: the system also comprises a communication module which is electrically connected with the controller and the engine respectively and is used for identifying and converting the abnormal operation signals of the engine into sampling demand signals and transmitting the sampling demand signals to the controller.
4. A fuel cooling system according to claim 1, wherein: and a sampling joint is arranged on a channel at the lower part of the fuel oil radiator.
5. A fuel cooling system according to claim 1, wherein: the second control valve is a one-way valve or an electromagnetic valve.
6. A fuel cooling system according to claim 1, wherein: the first control valve is an electromagnetic valve.
7. An engineering machine, characterized in that: comprising an engine, a fuel tank and a fuel cooling system according to any one of claims 1 to 6, said fuel inlet being connected to the engine and said fuel outlet being connected to the fuel tank.
8. The oil liquid sampling method of the engineering machinery is characterized by comprising the following steps of: use of a fuel cooling system according to any one of claims 1 to 6, said method comprising the steps of:
judging whether a complete machine controller of the engineering machinery where the fuel cooling system is located receives a sampling demand signal or not;
if the sampling demand signal is received, closing the second oil return flow path;
the sampled oil remains in the second oil return flow path, and the system oil completely flows back to the oil tank through the first oil return flow path.
9. The oil sampling method of an engineering machine according to claim 8, wherein: the method further comprises the step that after sampling is finished, an operator feeds back a signal of finishing the sampling to the controller through the communication module, and after the controller receives the signal of finishing the sampling, the controller controls the valve position of the control valve to conduct the second oil return flow path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210736084.XA CN115045782B (en) | 2022-06-27 | 2022-06-27 | Fuel cooling system, engineering machinery and oil liquid sampling method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210736084.XA CN115045782B (en) | 2022-06-27 | 2022-06-27 | Fuel cooling system, engineering machinery and oil liquid sampling method thereof |
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| CN115045782A CN115045782A (en) | 2022-09-13 |
| CN115045782B true CN115045782B (en) | 2024-03-29 |
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2022
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| JPH01155004A (en) * | 1987-12-11 | 1989-06-16 | Toshiba Corp | Device for continuously monitoring oil of oil pressure generating equipment |
| JP2000130161A (en) * | 1998-10-22 | 2000-05-09 | Shin Caterpillar Mitsubishi Ltd | Cooling device of construction machine |
| KR20040022856A (en) * | 2002-09-10 | 2004-03-18 | 현대자동차주식회사 | Control system for cooling water of radiator |
| CN111189670A (en) * | 2020-03-27 | 2020-05-22 | 威海怡和专用车有限公司 | Dark drainage appearance device and use this dark drainage appearance device's oil quality testing car |
| CN214174383U (en) * | 2020-10-23 | 2021-09-10 | 国网江西省电力有限公司电力科学研究院 | A standard oil appearance storage device for on-spot check-up |
| CN113299464A (en) * | 2021-05-21 | 2021-08-24 | 广东电网有限责任公司 | Adjustable reflux unit of fluid is got to on-load conservator |
| CN114604083A (en) * | 2022-03-10 | 2022-06-10 | 徐州徐工挖掘机械有限公司 | Engineering vehicle oil tank system, engineering vehicle and oil liquid automatic sampling method |
| CN115143001A (en) * | 2022-06-22 | 2022-10-04 | 中联重科土方机械有限公司 | Method for detecting fault, controller and fuel retention system |
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