CN220153688U - High-temperature lubricating oil flow standard device - Google Patents
High-temperature lubricating oil flow standard device Download PDFInfo
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- CN220153688U CN220153688U CN202321402948.0U CN202321402948U CN220153688U CN 220153688 U CN220153688 U CN 220153688U CN 202321402948 U CN202321402948 U CN 202321402948U CN 220153688 U CN220153688 U CN 220153688U
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- 239000010687 lubricating oil Substances 0.000 title claims abstract description 24
- 239000003921 oil Substances 0.000 claims abstract description 95
- 238000003860 storage Methods 0.000 claims abstract description 43
- 238000005303 weighing Methods 0.000 claims abstract description 29
- 238000007872 degassing Methods 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 238000004891 communication Methods 0.000 claims abstract description 3
- 238000012795 verification Methods 0.000 claims description 32
- 239000007788 liquid Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 238000011160 research Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001739 density measurement Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
The utility model discloses a high-temperature lubricating oil flow standard device which comprises a control system, an oil storage tank, a centrifugal oil pump, a steady flow tank, a degassing filter, an electronic scale, a standard meter, a heating and temperature control system and a medium pipeline, wherein the control system is used for controlling the flow of lubricating oil; a heater is arranged in the oil storage tank, and an oil outlet of the oil storage tank is sequentially connected with a centrifugal oil pump, a steady flow tank, a degassing filter, a checked meter area, a standard meter area and an electronic scale through pipelines; the outlet of the oil storage tank is connected with the inlet end of the medium pipeline, and the outlet end of the medium pipeline is connected with the oil inlet of the oil storage tank through a pipeline; the flowmeter to be detected is clamped and fixed on the medium pipeline through a meter clamping device; the upper end of the electronic scale is provided with a weighing box, and the control system is respectively connected with the centrifugal oil pump and the detected flowmeter and receives pulse signals of the detected flowmeter; the control system is in protocol communication with the electronic scale, and the value of the electronic scale is transmitted to the computer in real time. The utility model has small volume, small occupied area and high repeatability, and can meet the precision requirement of the flow standard device.
Description
Technical Field
The utility model belongs to the technical field of liquid flow standard devices, and relates to a high-temperature lubricating oil flow standard device.
Background
Metering is the science of research and measurement, is a support for the development of all the science, and plays a fundamental role in the production of industrial enterprises. International organization for standardization (ISO) determination: metering, standard, qualification assessment are three major posts for sustainable development of future world economies.
In aviation scientific research, the measuring work has great significance, and is a basic work of flight test and scientific research production. The final purpose of the flight test is to obtain a reliable test flight conclusion by acquiring accurate scientific research test flight data. And the measurement can ensure the accuracy and reliability of various data measured by the flight test research and the unification of magnitude transmission, and ensure the legal basis and effectiveness of product quality and test flight conclusion.
As a branch in metering, flow metering is widely used in countries where aviation technology is rapidly developed, thousands of flow meters are installed in an aircraft, they provide data in real time for the soaring blue sky of the aircraft, these data are the basis for whether the aircraft can safely operate, and the working environments of these flow meters are all high-temperature, high-pressure, flammable and explosive environments, and how to meter these flow meters operating in the high-temperature environments is an object of the present device development.
Therefore, there is a need to independently develop a complete set of high-temperature oil flow standard devices to solve the metering difficulties of these high-temperature flowmeters.
Disclosure of Invention
In order to solve the technical problems, the utility model aims to provide a high-temperature lubricating oil flow standard device, a control system of the device can control the operation of the whole device, collect on-site detection values of temperature, pressure, density, liquid level and the like in the device, issue a command for starting verification and a command for ending verification at the same time, control a reverser to start operation for verification, record the pulse number of a detected flowmeter, calculate the accumulated volume, and compare the accumulated volume with the standard volume obtained by weighing by an electronic scale to detect the error of the detected flowmeter. The specific technical scheme is as follows:
a high-temperature lubricating oil flow standard device comprises a control system, an oil storage tank, a centrifugal oil pump, a steady flow tank, a degassing filter, an electronic scale and a medium pipeline; the oil outlet of the oil storage tank is connected with a centrifugal oil pump through a pipeline, the centrifugal oil pump, the steady flow tank and the degassing filter are sequentially connected, the outlet of the degassing filter is connected with a medium pipeline, the medium pipeline sequentially passes through a detected flowmeter, a detected flowmeter on the meter clamping device and a standard flowmeter, and finally is connected with a reverser at the upper end of the electronic scale, and the medium enters a weighing tank at the upper end of the electronic scale through the reverser and returns to the oil storage tank after weighing is completed; the weighing box is arranged at the upper end of the electronic scale, the commutator is arranged at the upper part of the weighing box, the photoelectric sensor is arranged on the commutator, and the commutator acts to trigger the photoelectric sensor to control the start and the end of verification; the control system is respectively and electrically connected with the centrifugal oil pump and the detected flowmeter; meanwhile, the control system is in communication connection with the electronic scale.
The heating device is arranged in the oil storage tank: the circulating medium of the device is stored in an oil storage tank, and meanwhile, a heater is arranged in the oil storage tank, so that the temperature of the lubricating oil of the verification medium can be adjusted at will between 30 ℃ and 90 ℃, and all the heaters are arranged below the liquid level to prevent the occurrence of local overhigh temperature; the device is also provided with a heat tracing function while heating, so that the medium in the oil storage tank is heated uniformly. The temperature control system is independent of the device control system, monitors the temperature of the oil storage tank independently, and gives a temperature regulation instruction to enable the medium in the oil storage tank to maintain a set temperature.
The medium pipeline is also provided with a standard flowmeter which is arranged at the rear end of the detected flowmeter; explosion-proof pneumatic ball valves are designed on medium pipelines at the front end and the rear end of the detected flowmeter; and the medium pipelines at the front end and the rear end of the standard flowmeter are provided with explosion-proof pneumatic ball valves.
The outlet of the steady flow tank is provided with a degassing filter, the inlet of the degassing filter is connected with the steady flow tank, the outlet of the degassing filter is connected with a medium pipeline, the inside of the degassing filter is provided with a filter screen, an exhaust liquid-blocking valve and a sewage discharging valve.
The pneumatic telescopic device is designed at the rear end of the detected flowmeter, the length of the pneumatic telescopic device is adjusted to realize connection of the device and different detected flowmeters, and a sealing ring is designed at the interface of the pneumatic telescopic device and the detected flowmeter, and the pneumatic telescopic device is made of special oil discharge corrosion materials.
The flow standard device is provided with a plurality of medium pipelines, and the detected flowmeters with different calibers are clamped and fixed on the corresponding medium pipelines through meter clamping devices.
An oil collecting groove is arranged below the medium pipeline and is connected with an oil inlet of the oil storage tank through an oil return pipeline, and an oil return pump is arranged on the oil return pipeline.
The back end of the standard flowmeter is provided with a reverser, an inlet of the reverser is connected with an outlet of a pipe section of the standard flowmeter, the lower end of the reverser is provided with a water separator, the lower end of the water separator is provided with a weighing box, the weighing box is arranged on an electronic scale, the bottom of the weighing box is provided with a valve, and an outlet of the valve is connected with an oil storage tank through a pipeline, so that medium lubricating oil can circulate back to the oil storage tank.
The high-temperature lubricating oil flow standard device provided by the utility model has at least the following beneficial effects:
1. the device selects the electronic scale as the main standard device, has small volume, small occupied area and high repeatability, and can completely meet the 0.05% precision requirement of the flow standard device. The flow standard device is designed to be arranged at the downstream of the detected flowmeter and the standard flowmeter after the electronic scale is arranged, so that the detected flowmeter and the standard flowmeter can be guaranteed to work under the same pressure during verification, and meanwhile, the medium can directly circulate back to the oil storage tank after passing through the electronic scale, so that the verified medium naturally flows back to the oil storage tank under the condition of no additional power equipment.
2. The utility model introduces a weighing unit, an electronic scale with a main standard device, a weighing box for holding medium and a key component reverser for a mass method. After the verification medium flows through the detected flowmeter and the standard flowmeter, the verification medium enters the inlet of the reverser, the reverser is positioned at the bypass end before verification is prepared, the medium lubricating oil directly flows back to the oil storage tank through the pipeline at the bypass end, after verification is started, the position of the reverser is switched to the weighing tank end, the medium lubricating oil flows into the weighing tank, and the electronic scale starts weighing.
3. The utility model introduces density detection, the device adopts a mass method, the density measurement influences the final calculation result, and the device is provided with a glass tube densimeter, so that the lubricating oil density at a certain temperature can be measured on site. And meanwhile, a table look-up method is also provided, the lubricating oil density at a certain temperature is found out through table look-up, and the measured density value or the density value obtained through table look-up is input into a control system for operation.
3. According to the utility model, an explosion-proof centrifugal oil pump is selected, one 37KW oil pump is selected according to the flow, the working temperature is between 0 ℃ and 120 ℃, the verification requirement of high-temperature lubricating oil is completely met, and meanwhile, the oil pump inlet is positioned below the liquid level of the oil storage tank, so that the lubricating oil can enter the oil pump for circulation without adding any device.
4. In the utility model, besides the electronic scale is used as a standard device, each medium pipeline is also provided with a high-precision standard flowmeter (elliptic gear flowmeter), the measurement precision is 0.2 percent, the high-precision standard flowmeter is used for displaying the real-time flow value of the device during operation, and signals are transmitted to a control system, so that an operator can accurately regulate the flow of the device on a computer. The device is used for detecting low-precision flowmeter and is also used as an indication flowmeter of the device. The standard flowmeter is designed at the rear end of the detected flowmeter, so that the flow is more conveniently regulated, and meanwhile, the detected flowmeter and the standard flowmeter are under the same pressure during verification, so that the influence of uncertainty caused by pressure change is greatly reduced.
5. The device is provided with a temperature sensor, a pressure sensor and a liquid level sensor, the temperature and pressure change of the whole device are monitored, the precision of the temperature transmitter is 0.2 ℃, the precision of the pressure transmitter is 0.1%, and when the temperature and the pressure exceed alarm values, the control system can give an alarm; meanwhile, the oil level sensor is arranged, so that the control system can monitor the change condition of the liquid level in the oil tank conveniently, and when the oil level is too low, the control system can give an alarm to prompt that the liquid level of the oil tank is too low.
6. The utility model is designed with the flow regulating valve, which is positioned at the rear end of the standard flowmeter, and the structure has the advantages that the flow is regulated at the position, so that the standard flowmeter and the detected flowmeter can work under the same pressure, the pressure of the detected flowmeter during detection can be regulated, and meanwhile, the uncertainty caused by pressure difference is greatly reduced.
7. The utility modelThe novel design has verification medium heating system, and the device oil storage tank is 10m 3 According to the volume, 8 heating pipes are designed, the heating pipes are arranged below the liquid level of the medium lubricating oil, a certain number of heating pipes are selectively opened according to different verification temperatures, meanwhile, the temperature sensor and the liquid level sensor monitor the oil storage tank in real time, and the temperature of the heater is regulated through the controller, so that the temperature of the medium of the oil storage tank is kept constant.
8. The control system of the utility model adopts the configuration Wang Pingtai, has stable and reliable operation, economy and practicability, chinese operation interface and Chinese programming language, is suitable for domestic use, and is convenient for upgrading and reconstruction of the system. The hardware selected by the control system is an automation original commonly used in the market, and compared with hundreds of thousands and millions of prices of special equipment abroad, the price of the control system is only one fifth of the price, so that the use cost of the domestic volume management control system is greatly reduced. Meanwhile, the control system selects a graphical operation interface and a Chinese operation language, so that domestic users are greatly facilitated, operators can monitor the running condition of the device conveniently, and meanwhile, the requirements on the users are greatly reduced.
Drawings
FIG. 1 is a schematic diagram of a high temperature oil flow standard device of the present utility model;
wherein: 1-oil storage tank, 3-centrifugal oil pump, 4-steady flow tank, 5-degassing filter, 6-pipeline pressure transmitter, 7-pipeline temperature sensor, 8-meter clamping device, 9-standard flowmeter, 10-regulating valve, 11-commutator, 12-weighing container, 13-electronic scale, 15-medium pipeline.
Detailed Description
As shown in fig. 1, a high temperature lubricant flow standard device of the present utility model comprises: the system comprises an oil storage tank 1, a heating system, a centrifugal oil pump 3, a steady flow tank 4, a degassing filter 5, a pipeline pressure transmitter 6, a pipeline temperature sensor 7, a meter clamping device 8, a standard flowmeter 9, a regulating valve 10, a reverser 11, a weighing container 12, an electronic scale 13 and a control system; the outlet of the oil storage tank 1 is connected with the inlet of the centrifugal oil pump 3, the inlet of the steady flow tank 4 is connected with the outlet of the centrifugal oil pump 3, the outlet of the steady flow tank 4 is connected with the inlet of the degassing filter 5, the outlet of the degassing filter 5 is connected with a medium pipeline 15, the medium pipeline 15 is connected with a detected flowmeter in the meter clamping device 8, the outlet of the detected flowmeter is connected with the standard flowmeter 9 through the medium pipeline 15, the regulating valve 10 is connected with the outlet of the standard flowmeter 9 through the medium pipeline 15, the inlet of the reverser 11 is connected with the outlet of the regulating valve 10 through the medium pipeline 15, the weighing tank 12 is arranged at the upper end of the electronic scale 13, the temperature sensor 6 and the pressure sensor 7 are arranged on the medium pipeline 15, the heater 2-1 is arranged inside the oil storage tank 1, and the control system is electrically connected with the whole device; the control system selects the king platform.
The centrifugal oil pump 3 pumps out verification media from the oil storage tank 1, an outlet of the centrifugal oil pump is connected with the steady flow tank 4, the media enter a media pipeline 15 through the degassing filter 5, and finally flow back to the oil storage tank 1 from an outlet of the weighing tank 12, so that the whole circulation process is completed.
The medium pipeline 15 is provided with a standard flowmeter 9, and the standard flowmeter 9 is arranged at the rear end of the detected flowmeter. Solenoid valves are arranged on the medium pipelines at the front end and the rear end of the detected flowmeter; solenoid valves are arranged on the medium pipelines at the front end and the rear end of the standard flowmeter 9.
Preferably, the device is designed with two basic detected pipelines, the meter clamping device 8 is respectively designed with electromagnetic valves at the front and the back, when the detected flowmeter is arranged on one pipeline, the electromagnetic valve of the current pipeline is opened, medium flows, and the electromagnetic valve of the other pipeline is closed.
The verification medium can flow back to the oil storage tank 1 or flow into the weighing container 12 through the outlet of the reverser 11, when verification is started, the reverser can act on the weighing container, and when verification is finished, the reverser outlet can act on the return pipe.
Before verification, firstly, heating a medium in the oil storage tank according to the temperature requirement of the detected flowmeter, selecting a heater 2-1 to be used on a heating controller 2-4, setting a temperature value, clicking a start button, starting the heater 2-1 to work, simultaneously starting the oil storage tank temperature transmitter 2-2 to work, if the actual temperature does not reach the set temperature, continuing heating the heater, if the actual temperature does not reach the set temperature, controlling the heater 2-1 to stop heating by the heating controller 2-4, simultaneously, monitoring the liquid level by a liquid level sensor 2-3 in real time, and if the liquid level of the medium is lower than the set value, stopping the operation of the heating controller 2-4, and circulating the verification medium in a pipeline while heating to uniformly heat the medium.
Before verification, solenoid valves before and after a pipeline meter clamping device 8 where a detected flowmeter is located are opened, solenoid valves before and after a standard flowmeter 9 is selected are opened, and a required reverser 11 and an electronic scale 13 are selected. The control system controls the centrifugal oil pump 3 to start, oil is conveyed into the steady flow tank 4, the flow speed of the medium is reduced to be less than 1 m/s, the medium passes through the steady flow tank 4 and then enters the degassing filter 5, impurities and gas of the medium are filtered by the degassing filter 5, and the medium enters the medium pipeline 15. The medium flow pipeline is provided with a temperature sensor and a pressure sensor, the temperature and the pressure of the pipeline are measured, the running state of the medium is monitored, and data are sent to the control system. The medium flows through the checked flowmeter and the standard flowmeter 9, then through the reverser 11 and the weighing box 12, and finally returns to the oil tank. In the medium circulation process, the control system regulates the flow by controlling the centrifugal oil pump 3 and a flow regulating electromagnetic valve at the rear side of the standard flowmeter 9, and the standard flowmeter 9 uploads the accurate flow in the current pipeline to the control system for an operator to select verification flow points; the tested flowmeter transmits the pulse signal through an electric transmission control system, and the test is started after the pressure and the flow of the pipeline are stable.
In the verification process, the control system can control the operation of the whole device, meanwhile, the on-site detection values of temperature, pressure, oil tank liquid level and the like in the device are collected, the control system sends out a command to start verification, the commutator 11 acts, a medium is switched into the weighing container 12 from the bypass, meanwhile, a photoelectric switch on the commutator sends out a signal to the control system, verification starts, the control system starts timing, and meanwhile, the pulse number of the detected flowmeter is recorded. When the verification time reaches the set time, the control system sends out a verification ending command, the commutator is switched out, the photoelectric switch is triggered at the same time, the timer finishes timing, the pulse recording ends, and the one-time verification process is completed. Meanwhile, the control system calculates the error of the current flowmeter and stores the error into a table, so that verification of all verification flow points of the detected flowmeter is completed repeatedly.
When each verification flow point of the detected flowmeter is verified, the detected flowmeter is taken down, the medium in the medium pipeline 15 flows into the oil collecting tank 1, and the control system controls the oil pump 3 to stop.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the scope of the utility model, but rather to enable any modification, equivalent replacement, improvement or the like to be made without departing from the spirit and principles of the utility model.
Claims (8)
1. The high-temperature lubricating oil flow standard device is characterized by comprising a control system, an oil storage tank, a centrifugal oil pump, a steady flow tank, a degassing filter, an electronic scale and a medium pipeline; the oil outlet of the oil storage tank is connected with a centrifugal oil pump through a pipeline, the centrifugal oil pump, the steady flow tank and the degassing filter are sequentially connected, the outlet of the degassing filter is connected with a medium pipeline, the medium pipeline sequentially passes through a detected flowmeter, a detected flowmeter on the meter clamping device and a standard flowmeter, and finally is connected with a reverser at the upper end of the electronic scale, and the medium enters a weighing tank at the upper end of the electronic scale through the reverser and returns to the oil storage tank after weighing is completed; the weighing box is arranged at the upper end of the electronic scale, the commutator is arranged at the upper part of the weighing box, the photoelectric sensor is arranged on the commutator, and the commutator acts to trigger the photoelectric sensor to control the start and the end of verification; the control system is respectively and electrically connected with the centrifugal oil pump and the detected flowmeter; meanwhile, the control system is in communication connection with the electronic scale.
2. The high temperature oil flow standard device according to claim 1, wherein the heating device is mounted in the oil reservoir: the circulating medium of the device is stored in an oil storage tank, and meanwhile, a heater is arranged in the oil storage tank; all heaters are arranged below the liquid level, so that local overhigh temperature is prevented; the temperature control system is independent of the device control system, monitors the temperature of the oil storage tank independently, and gives a temperature regulation instruction to enable the medium in the oil storage tank to maintain a set temperature.
3. The high-temperature lubricating oil flow standard device according to claim 1, wherein explosion-proof pneumatic ball valves are designed on medium pipelines at the front end and the rear end of the detected flowmeter; and the medium pipelines at the front end and the rear end of the standard flowmeter are provided with explosion-proof pneumatic ball valves.
4. The high temperature oil flow standard device according to claim 1, wherein the filter screen, the exhaust liquid-blocking valve and the drain valve are arranged in the degassing filter.
5. The high-temperature lubricating oil flow standard device according to claim 1, wherein a pneumatic expansion device is arranged at the rear end of the detected flowmeter, the length of the pneumatic expansion device is adjusted to realize the connection of the device with different detected flowmeters, and a sealing ring is arranged at the interface of the pneumatic expansion device and the detected flowmeter.
6. The high-temperature lubricating oil flow standard device according to claim 1, wherein the flow standard device is provided with a plurality of medium pipelines, and the detected flowmeters with different calibers are clamped and fixed on the corresponding medium pipelines through meter clamping devices.
7. The high-temperature lubricating oil flow standard device according to claim 1, wherein an oil collecting groove is arranged below the medium pipeline and is connected with an oil inlet of the oil storage tank through an oil return pipeline, and an oil return pump is arranged on the oil return pipeline.
8. The high-temperature lubricating oil flow standard device according to claim 1, wherein an inlet of the reverser is connected with an outlet of a pipe section of the standard flowmeter, a water separator is arranged at the lower end of the reverser, a weighing box is arranged at the lower end of the water separator, the weighing box is arranged on an electronic scale, a valve is arranged at the bottom of the weighing box, and an outlet of the valve is connected with an oil storage tank through a pipeline so that the lubricating oil of a medium can be circulated back to the oil storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321402948.0U CN220153688U (en) | 2023-06-05 | 2023-06-05 | High-temperature lubricating oil flow standard device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321402948.0U CN220153688U (en) | 2023-06-05 | 2023-06-05 | High-temperature lubricating oil flow standard device |
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| CN220153688U true CN220153688U (en) | 2023-12-08 |
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| CN202321402948.0U Active CN220153688U (en) | 2023-06-05 | 2023-06-05 | High-temperature lubricating oil flow standard device |
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| CN (1) | CN220153688U (en) |
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- 2023-06-05 CN CN202321402948.0U patent/CN220153688U/en active Active
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