CN119512257A - A fuel flow temperature control metering system - Google Patents
A fuel flow temperature control metering system Download PDFInfo
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- CN119512257A CN119512257A CN202411543448.8A CN202411543448A CN119512257A CN 119512257 A CN119512257 A CN 119512257A CN 202411543448 A CN202411543448 A CN 202411543448A CN 119512257 A CN119512257 A CN 119512257A
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- fuel
- flow
- oil
- temperature
- supply pipeline
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- 239000000446 fuel Substances 0.000 title claims abstract description 170
- 230000001105 regulatory effect Effects 0.000 claims abstract description 72
- 239000002828 fuel tank Substances 0.000 claims abstract description 69
- 238000005303 weighing Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 94
- 230000001276 controlling effect Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 58
- 230000001502 supplementing effect Effects 0.000 description 21
- 238000010586 diagram Methods 0.000 description 6
- 239000000295 fuel oil Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The invention relates to a fuel flow temperature control metering system which comprises a fuel assembly, a flow regulating assembly, a temperature regulating assembly and a control assembly, wherein the fuel assembly comprises a fuel tank and a weighing device arranged at the bottom of the fuel tank, the fuel tank is provided with a fuel supply pipeline, the flow regulating assembly comprises a flow regulating end arranged on the fuel supply pipeline, the temperature regulating assembly comprises a temperature regulating end arranged on the fuel supply pipeline, the control assembly comprises a feedback module, a flow control module and a temperature control module, the feedback module is arranged at the output end of the fuel supply pipeline, the weight change rate of the fuel tank can be controlled by controlling the flow regulating assembly, meanwhile, the flow information of the output end of the fuel supply pipeline can be known through the feedback module, the flow regulating assembly is further finely regulated, the fuel flow output by the fuel supply pipeline can be stably and accurately controlled, and the feedback module can also feed back the temperature information of the fuel at the output end of the fuel supply pipeline so as to accurately regulate the temperature of the output fuel.
Description
Technical Field
The invention relates to the technical field of engine bench fuel metering, in particular to a fuel flow temperature control metering system.
Background
The stability and accuracy of the fuel oil control metering system have great influence on the experimental result of the engine bench, and the metering accuracy directly relates to the experimental capability of the engine bench. At present, the measuring and adjusting modes for fuel flow are more, and most systems use a liquid flowmeter for measurement.
However, when the fuel flow of the engine bench is small, the flow signal is weak, so that the measured data has larger deviation compared with the actual data, the fuel flow and the temperature are difficult to precisely control, and the stability and the accuracy of the experimental result of the engine bench are affected.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a fuel flow rate and temperature control metering system for solving the problem that when the fuel flow rate of an engine rack is small, the flow rate signal is weak, and the metering of the fuel flow rate and temperature is difficult to be accurately controlled by the existing system.
The invention provides a fuel flow temperature control metering system, which comprises a fuel assembly, a flow regulating assembly, a temperature regulating assembly and a control assembly, wherein the fuel assembly comprises a fuel tank and a weighing device arranged at the bottom of the fuel tank, the fuel tank is provided with a fuel supply pipeline, the fuel inlet end of the fuel supply pipeline is communicated with the fuel tank, the flow regulating assembly comprises a flow regulating end arranged on the fuel supply pipeline and is used for regulating the flow of fuel in the fuel supply pipeline, the temperature regulating assembly comprises a temperature regulating end arranged on the fuel supply pipeline and is used for regulating the temperature of the fuel in the fuel supply pipeline, the control assembly comprises a feedback module, a flow control module and a temperature control module, the feedback module is arranged at the output end of the fuel supply pipeline and is used for detecting the flow and the temperature of the fuel in the fuel supply pipeline, the feedback module and the weighing device are electrically connected with the flow regulating end through the flow control module, the flow control module controls the flow regulating end according to the flow information of the output end of the fuel supply pipeline and the internal change value of the fuel supply pipeline, and the feedback module is connected with the temperature control module through the temperature regulating end according to the action of the temperature regulating end of the fuel supply pipeline.
Further, the flow regulating assembly comprises a first oil pump mounted on the oil supply pipeline, and the first oil pump is electrically connected with the flow control module.
Further, the fuel tank is provided with an oil return pipeline, an oil outlet end of the oil return pipeline is communicated with the fuel tank, and the flow regulating assembly further comprises a pressure regulating valve arranged on the oil return pipeline.
Further, the fuel tank is provided with a fuel supplementing pipeline, the fuel outlet end of the fuel supplementing pipeline is communicated with the fuel tank, the flow regulating assembly further comprises a fuel supplementing piece arranged on the fuel supplementing pipeline, the fuel supplementing piece is electrically connected with the flow control module, and the flow control module is used for regulating the fuel supplementing flow of the fuel supplementing piece.
Further, the oil supplementing piece comprises an oil supplementing tank, a second oil pump and a control valve which are sequentially arranged on the oil supplementing pipeline along the direction of the fuel tank, the second oil pump and the control valve are electrically connected with the flow control module, and the flow control module is used for adjusting the power of the second oil pump and the opening and closing degree of the control valve.
Further, the temperature regulation assembly comprises a water tank, a water pump and a first heat exchanger arranged on the oil supply pipeline, wherein the water outlet end of the water tank is communicated with the water inlet end of the first heat exchanger through the water pump, the water outlet end of the first heat exchanger is communicated with the water inlet end of the water tank, the water pump is electrically connected with the temperature control module, and the temperature control module is used for regulating the power of the water pump.
Further, the fuel tank is provided with an oil return pipeline, the temperature adjusting assembly further comprises a second heat exchanger arranged on the oil return pipeline, and the water outlet end of the first heat exchanger is communicated with the water inlet end of the water tank through the second heat exchanger.
Further, the fuel tank is provided with a fuel supplementing pipeline, the temperature adjusting assembly further comprises a third heat exchanger arranged on the fuel supplementing pipeline, and the water outlet end of the second heat exchanger is communicated with the water inlet end of the water tank through the third heat exchanger.
Further, the fuel tank further comprises a fourth heat exchanger and a solenoid valve, the third heat exchanger is provided with a first water outlet end and a second water outlet end, the water tank is provided with a first water inlet end and a second water inlet end, the first water outlet end of the third heat exchanger is communicated with the first water inlet end of the water tank through the solenoid valve, and the second water outlet end of the third heat exchanger is communicated with the second water inlet end of the water tank through the fourth heat exchanger.
Further, the temperature control module is connected with the electromagnetic valve and controls the opening and closing degree of the electromagnetic valve according to the temperature information of the output end of the oil supply pipeline.
Compared with the prior art, the weight change of the fuel tank can be accurately known through the weighing device arranged at the bottom of the fuel tank, the weight change rate of the fuel tank can be controlled through controlling the flow regulating assembly, namely, the flow of fuel in the fuel supply pipeline is controlled, the flow meter is replaced, the metering is more accurate, meanwhile, the flow information of the output end of the fuel supply pipeline can be known through the feedback module, the flow regulating assembly is further finely regulated, the fuel flow output by the fuel supply pipeline is stably and accurately controlled, and the feedback module can also feed back the temperature information of the fuel at the output end of the fuel supply pipeline so as to accurately regulate the temperature of the output fuel.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a fuel flow temperature control metering system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the arrangement of the oil replenishing parts in the fuel flow temperature control metering system according to the embodiment of the present invention;
Fig. 3 is a schematic structural diagram of a temperature adjusting component in a fuel flow temperature control metering system according to an embodiment of the present invention.
Detailed Description
The following detailed description of preferred embodiments of the application is made in connection with the accompanying drawings, which form a part hereof, and together with the description of the embodiments of the application, are used to explain the principles of the application and are not intended to limit the scope of the application.
Fig. 1 is a schematic diagram of the overall structure of a fuel flow temperature control metering system according to an embodiment of the present invention. The invention provides a fuel flow temperature control metering system, which comprises a fuel assembly 100, a flow regulating assembly 200, a temperature regulating assembly 300 and a control assembly 400, wherein the fuel assembly 100 comprises a fuel tank 110 and a weighing device 120 arranged at the bottom of the fuel tank 110, the fuel tank 110 is provided with a fuel supply pipeline 111, the fuel inlet end of the fuel supply pipeline 111 is communicated with the fuel tank 110, the flow regulating assembly 200 comprises a flow regulating end arranged on the fuel supply pipeline 111 and is used for regulating the flow of fuel in the fuel supply pipeline 111, the temperature regulating assembly 300 comprises a temperature regulating end arranged on the fuel supply pipeline 111 and is used for regulating the temperature of the fuel in the fuel supply pipeline 111, the control assembly 400 comprises a feedback module 410, a flow control module 420 and a temperature control module 430, the feedback module 410 is arranged at the output end of the fuel supply pipeline 111 and is used for detecting the flow and the temperature of the fuel in the fuel supply pipeline 111, the feedback module 410 and the weighing device 120 are electrically connected with the flow regulating end through the flow control module 420, the flow control module 420 controls the flow regulating end according to the flow information of the output end of the fuel supply pipeline 111 and the change value of the fuel in the fuel tank 110, the feedback module 410 is connected with the temperature control module 430 according to the temperature control end of the temperature regulating end of the fuel supply pipeline 111.
During implementation, the weight change of the fuel tank 110 can be accurately known through the weighing device 120 arranged at the bottom of the fuel tank 110, the weight change rate of the fuel tank 110 can be controlled through controlling the flow regulating assembly 200, namely, the flow of fuel in the fuel supply pipeline 111 is controlled, the metering is more accurate, meanwhile, the flow information of the output end of the fuel supply pipeline 111 can be known through the feedback module 410, the flow regulating assembly 200 is further finely tuned, the fuel flow output by the fuel supply pipeline 111 is stably and accurately controlled, and the feedback module 410 can also feed back the temperature information of the fuel at the output end of the fuel supply pipeline 111 so as to accurately regulate the temperature of the output fuel.
The fuel assembly 100 in this embodiment provides fuel to an engine and includes a fuel tank 110 and a weight 120 mounted to the bottom of the fuel tank 110. The fuel tank 110 has a fuel supply line 111.
The fuel tank 110 is a tank structure for storing fuel, and the weighing device 120 can be realized by adopting a high-precision weighing balance.
The flow regulating assembly 200 in this embodiment includes a flow regulating end mounted to the fuel supply line 111 for regulating the flow of fuel within the fuel supply line 111.
In one embodiment, the flow regulation assembly 200 includes a first oil pump 210 mounted on the oil supply line 111, the first oil pump 210 being electrically connected to the flow control module 420.
Specifically, the flow control module 420 decreases the power of the first oil pump 210 when the fuel flow fed back by the feedback module 410 is greater than a preset value, and conversely, the flow control module 420 increases the power of the first oil pump 210 when the fuel flow fed back by the feedback module 410 is less than the preset value.
In one embodiment, the fuel tank 110 has a return line 112, the outlet end of the return line 112 being in communication with the fuel tank 110, and the flow regulating assembly 200 further includes a pressure regulating valve 220 mounted to the return line 112. By adjusting the opening and closing degree of the pressure regulating valve 220, the fuel returned from the engine can be controlled.
In one embodiment, the fuel tank 110 has a fuel supplementing line 113, the fuel outlet end of the fuel supplementing line 113 is connected to the fuel tank 110, the flow regulating assembly 200 further includes a fuel supplementing member 230 mounted on the fuel supplementing line 113, the fuel supplementing member 230 is electrically connected to the flow control module 420, and the flow control module 420 is used for regulating the flow rate of the fuel supplementing member 230.
As shown in fig. 2, which is a schematic layout diagram of the oil replenishing member 230 in the fuel flow temperature control metering system according to the embodiment of the present invention, the oil replenishing member 230 includes an oil replenishing tank 231, a second oil pump 232 and a control valve 233 sequentially arranged on the oil replenishing pipeline 113 along the direction of the flow direction of the fuel tank 110, the second oil pump 232 and the control valve 233 are electrically connected to the flow control module 420, and the flow control module 420 is used for adjusting the power of the second oil pump 232 and the opening and closing degree of the control valve 233.
When the fuel level in the fuel tank 110 is lower than a preset value (which can be known by the weighing device 120), the flow control module 420 controls the first oil pump 210 to be closed, the second oil pump 232 to be opened, and simultaneously, the flow of the fuel in the fuel supplementing pipeline 113 can be adjusted by adjusting the power of the second oil pump 232 and the opening and closing degree of the control valve 233.
The temperature regulating assembly 300 in this embodiment includes a temperature regulating end mounted on the oil supply line 111 for regulating the temperature of the fuel in the oil supply line 111.
As shown in fig. 3, which is a schematic structural diagram of a temperature adjusting assembly 300 in a fuel flow temperature control metering system according to an embodiment of the present invention, the temperature adjusting assembly 300 includes a water tank 310, a water pump 320 and a first heat exchanger 330 installed on an oil supply pipeline 111, a water outlet end of the water tank 310 is communicated with a water inlet end of the first heat exchanger 330 via the water pump 320, a water outlet end of the first heat exchanger 330 is communicated with a water inlet end of the water tank 310, the water pump 320 is electrically connected with a temperature control module 430, and the temperature control module 430 is used for adjusting power of the water pump 320.
Specifically, the temperature control module 430 increases the power of the water pump 320 when the temperature of the fuel fed back by the feedback module 410 is greater than a preset value, and conversely, the flow control module 420 decreases the power of the water pump 320 when the flow rate of the fuel fed back by the feedback module 410 is less than the preset value.
In one embodiment, the fuel tank 110 has an oil return line 112, and the temperature regulating assembly 300 further includes a second heat exchanger 340 mounted on the oil return line 112, wherein the water outlet end of the first heat exchanger 330 is in communication with the water inlet end of the water tank 310 via the second heat exchanger 340.
It can be understood that, besides adjusting the power of the water pump 320, the opening and closing degree of the pressure regulating valve 220 can be synchronously adjusted, i.e. the flow rate in the oil return pipeline 112 is controlled, so as to ensure that the fuel entering the fuel tank 110 reaches the preset temperature, and avoid the temperature difference between the fuel entering and exiting the fuel tank 110, and influence the stability of the fuel temperature in the fuel tank 110.
In one embodiment, the fuel tank 110 has a fuel supply line 113, and the temperature adjustment assembly 300 further includes a third heat exchanger 350 mounted on the fuel supply line 113, and the water outlet end of the second heat exchanger 340 is in communication with the water inlet end of the water tank 310 via the third heat exchanger 350.
Meanwhile, besides adjusting the power of the water pump 320, the opening and closing degree of the control valve 233 can be synchronously adjusted, namely, the flow in the oil supplementing pipeline 113 is controlled, so that the fuel oil entering the fuel tank 110 reaches the preset temperature, and the temperature difference between the oil entering and exiting the fuel tank 110 is avoided, and the stability of the fuel oil temperature in the fuel tank 110 is influenced.
The fuel tank 110 in this embodiment further includes a fourth heat exchanger 360 and a solenoid valve 370, the third heat exchanger 350 has a first water outlet end and a second water outlet end, the water tank 310 has a first water inlet end and a second water inlet end, the first water outlet end of the third heat exchanger 350 is in communication with the first water inlet end of the water tank 310 via the solenoid valve 370, and the second water outlet end of the third heat exchanger 350 is in communication with the second water inlet end of the water tank 310 via the fourth heat exchanger 360.
The temperature control module 430 is connected to the solenoid valve 370, and controls the opening and closing degree of the solenoid valve 370 according to temperature information of the output end of the oil supply pipeline 111.
Specifically, if the temperature of the fuel oil output from the fuel oil supply pipeline 111 is too high, the opening and closing degree of the electromagnetic valve 370 can be reduced, so that more circulating water is distributed to the fourth heat exchanger 360, and part of the water is cooled by the fourth heat exchanger 360 and then returned to the water tank 310, so that the cooling efficiency of the whole temperature adjusting assembly 300 can be improved. It will be appreciated that the greater the difference between the temperature of the fuel output from the fuel supply line 111 and the preset value, the greater the opening and closing degree of the solenoid valve 370, and the smaller the difference between the temperature of the fuel output from the fuel supply line 111 and the preset value, the smaller the opening and closing degree of the solenoid valve 370.
It should be noted that, the first heat exchanger 330, the second heat exchanger 340 and the third heat exchanger 350 may use heat exchange tubes, and the heat exchange tubes pass through the oil return line 111, the oil return line 112 and the oil supplementing line 113 to exchange heat with the fuel in the corresponding lines. Of course, it will be appreciated that the heat exchanger may be replaced by other forms of construction, and is not limited thereto.
Meanwhile, the fourth heat exchanger 360 is used to cool the diverted circulating water and return the same to the water tank 310, and the temperature of the circulating water can be controlled.
In this embodiment, the control assembly 400 includes a feedback module 410, a flow control module 420 and a temperature control module 430, wherein the feedback module 410 is installed at an output end of the oil supply pipeline 111 and is used for detecting flow and temperature of fuel in the oil supply pipeline 111, the feedback module 410 and the weighing device 120 are electrically connected with a flow adjustment end through the flow control module 420, the flow control module 420 controls the flow adjustment end according to flow information at the output end of the oil supply pipeline 111 and a fuel variation value in the fuel tank 110, the feedback module 410 is electrically connected with the temperature adjustment end through the temperature control module 430, and the temperature control module 430 controls the temperature adjustment end according to temperature information at the output end of the oil supply pipeline 111.
The feedback module 410 may use a pressure sensor to detect the flow rate of the fuel in the fuel supply pipe, and meanwhile, the feedback module 410 may use a thermometer to detect the temperature of the fuel in the fuel supply pipe 111, and the feedback module 410 transmits the detected flow rate information and the detected temperature to the flow control module 420.
The flow control module 420 is a structure that controls the pump and valve actions according to gravity changes and flow changes as will occur to those of skill in the art. Similarly, the temperature control module 430 is a structure that controls pump and valve actions based on temperature changes as would occur to those skilled in the art.
In one embodiment, a purge valve 114 and a pressure relief valve 115 are also provided on the fuel assembly 100.
The working flow is as follows:
1) In the fuel supply stage, the liquid level in the fuel tank 110 is higher than the preset minimum liquid level, at this time, the gravity information of the fuel tank 110 is fed back to the flow control module 420 through the weighing device 120, the flow control module 420 controls the first oil pump 210 to work, the fuel flow rate of the fuel tank 110 to be delivered to the fuel supply pipeline 111 can be known according to the gravity change rate of the fuel tank 110, the power of the first oil pump 210 is controlled to control the magnitude of the fuel flow rate delivered to the fuel supply pipeline 111, the flow information of the output end of the fuel supply pipeline 111 can be known through the feedback module 410, when the fuel flow rate fed back by the feedback module 410 is higher than the preset value, the flow control module 420 reduces the power of the first oil pump 210, and otherwise, when the fuel flow rate fed back by the feedback module 410 is lower than the preset value, the flow control module 420 increases the power of the first oil pump 210. Thereby realizing the closed-loop control of the fuel flow of the fuel supply pipeline.
2) In the oil replenishing stage, the liquid level in the fuel tank 110 is lower than the preset minimum liquid level, at this time, the gravity information of the fuel tank 110 is fed back to the flow control module 420 through the weighing device 120, the flow control module 420 controls the first oil pump 210 to be closed, the second oil pump 232 to be opened, and simultaneously, the flow of the fuel in the oil replenishing pipeline 113 can be adjusted by adjusting the power of the second oil pump 232 and the opening and closing degree of the control valve 233.
Compared with the prior art, the weight change of the fuel tank 110 can be accurately known through the weighing device 120 arranged at the bottom of the fuel tank 110, the weight change rate of the fuel tank 110 can be controlled through controlling the flow regulating assembly 200, namely, the flow of the fuel in the fuel supply pipeline 111 is controlled, the flow meter is replaced, the metering is more accurate, meanwhile, the flow information of the output end of the fuel supply pipeline 111 can be known through the feedback module 410, the flow regulating assembly 200 is further finely tuned, the fuel flow output by the fuel supply pipeline 111 is stably and accurately controlled, and the feedback module 410 can also feed back the temperature information of the fuel at the output end of the fuel supply pipeline 111 so as to accurately regulate the temperature of the output fuel.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention.
Claims (10)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN119512257A true CN119512257A (en) | 2025-02-25 |
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