CN109297540B - Generator-based pipeline working medium pressure and temperature loss measuring device - Google Patents
Generator-based pipeline working medium pressure and temperature loss measuring device Download PDFInfo
- Publication number
- CN109297540B CN109297540B CN201811296115.4A CN201811296115A CN109297540B CN 109297540 B CN109297540 B CN 109297540B CN 201811296115 A CN201811296115 A CN 201811296115A CN 109297540 B CN109297540 B CN 109297540B
- Authority
- CN
- China
- Prior art keywords
- turbine
- generator
- pipeline
- pressure
- temperature loss
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
The application provides a pressure and temperature loss measuring device of pipeline working medium based on generator includes: the system comprises an adjustable flow valve, a turbine, a generator and a data acquisition and processing device, wherein the adjustable flow valve is arranged at the joint of a pipeline and air source equipment; the turbine is connected with the pipeline to convert the air pressure energy in the pipeline into mechanical energy; the generator is connected with an output shaft of the turbine to convert the mechanical energy into hydraulic energy; the data acquisition and processing device is connected with the generator and used for acquiring data and calculating pressure loss and temperature loss.
Description
Technical Field
The application relates to the technical field of aviation, and particularly provides a pressure and temperature loss measuring device for a pipeline working medium based on a generator.
Background
In the existing pipeline pressure and temperature loss measuring method, collected pressure and temperature signals are converted into electric signals with the same frequency through a sensor, and the measured signals are processed into corresponding pressure and temperature values through a signal amplifier by utilizing a test data collection system. The measuring method has the defects that more sensors are required to be arranged on the circumferential section of the outlet of the pipeline, certain influence is caused on the flow of a pipeline system, and meanwhile, the installation of the sensors is not easy to measure for the pipeline with smaller outlet diameter or the pipeline with the diameter-variable characteristic because a certain volume space is required for installing the sensors.
Because the deviation that measurement system installation caused can cause certain influence to the data result, consequently there is the not enough of system measurement data precision unable assurance, only is fit for the great pipeline of export diameter moreover, just is not suitable for to the less pipeline of pipe diameter. In addition, in the measuring method, the sensor is sensitive to the ambient temperature, so that the service life of the sensor is influenced when the sensor is used for measuring in a high-temperature environment, and the application range is relatively narrow. When the pipeline pressure and temperature loss of different flowing media are measured, the method cannot be considered, and has certain limitation in application.
Disclosure of Invention
In order to solve at least one of the above technical problems, the present application provides a generator-based device for measuring pressure and temperature loss of a pipeline working medium, comprising: the system comprises an adjustable flow valve, a turbine, a generator and a data acquisition and processing device, wherein the adjustable flow valve is arranged at the joint of a pipeline and air source equipment; the turbine is connected with the pipeline to convert the air pressure energy in the pipeline into mechanical energy; the generator is connected with an output shaft of the turbine to convert the mechanical energy into electric energy; and the data acquisition and processing device is connected with the generator and is used for acquiring data and calculating pressure loss and temperature loss.
According to at least one embodiment of the application, the data acquisition and processing device is connected with an oil source to ensure that the generator operates normally.
According to at least one embodiment of the present application, the data acquisition and processing device is a computer.
According to at least one embodiment of the application, the turbine is connected with the pipeline through a flange, and a sealing gasket is arranged at the flange connection position.
According to at least one embodiment of the application, the data acquisition and processing device is connected with the generator through a test cable.
In the pressure loss and temperature loss measuring device of pipeline working medium that this application embodiment provided, need not installation pressure and temperature sensor in the pipeline, can directly obtain the pressure and the temperature parameter of pipeline export, the accessible calculates the efficiency that obtains the pipeline simultaneously, reaches that data is accurate, the reliability is high, application scope is wide and can satisfy the purpose of the pipeline loss test of arbitrary pipe diameter and trend to easy and simple to handle, the practicality is good.
Drawings
FIG. 1 is a schematic structural diagram of a device for measuring pressure loss and temperature loss of a pipeline working medium according to an embodiment of the present application;
FIG. 2 is a first turbine map provided by an embodiment of the present application;
FIG. 3 is a second turbine map provided by an embodiment of the present application.
Wherein:
1. a gas source device; 2. an adjustable flow valve; 3. testing the pipeline; 4. a turbine; 5. a generator; 6. a data acquisition device; 7. a power source.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant application and are not limiting of the application. It should be noted that, for convenience of description, only the portions related to the present application are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
It should be noted that in the description of the present application, the terms of direction or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present application, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those skilled in the art as the case may be.
Fig. 1 is a schematic structural diagram of a device for measuring pressure loss and temperature loss of a pipeline working medium according to an embodiment of the present application.
As shown in fig. 1, the device for measuring pressure loss and temperature loss of a line working medium includes: adjustable flow valve 2, turbine 4, generator 5 and data acquisition and processing device 6.
The adjustable flow valve 2 is arranged at the joint of the pipeline 3 and the air source equipment 1; the turbine 4 is connected to the pipe 3 to convert the air pressure energy in the pipe 3 into mechanical energy; the generator 5 is connected to an output shaft of the turbine 4 to convert mechanical energy into electrical energy; the data acquisition device 6 is connected with the generator 5 and is used for acquiring data and calculating pressure loss and temperature loss.
Optionally, the data acquisition and processing device 6 is connected with an oil source to ensure the normal operation of the generator 5.
Alternatively, the turbine 4 and the pipeline 3 are connected by a flange, and a sealing gasket is arranged at the flange connection.
Optionally, the data acquisition and processing device 6 is connected with the generator 5 through a test cable.
Optionally, the data acquisition and processing device 6 is a computer.
In some embodiments, the data acquisition processing apparatus 6 is configured to:
the specific mass flow work of a given turbine, the flow parameters of the adjustable flow valve, the design point inlet temperature of the turbine, the relative physical speed of the turbine, and the turbine front pressure of the turbine.
And acquiring the output voltage and the output current of the generator, and calculating the actual output power of the generator according to the output voltage and the output current.
In this embodiment, the actual output power of the generator is calculated as follows:
Pd＝U*I/cosΦ，
wherein, PdThe actual output power of the generator is U, the output voltage of the generator is I, the output current of the generator is I, and the power factor of the generator is cos phi.
A first output power of the turbine is calculated based on the actual output power.
In the present embodiment, the output power of the turbine can be obtained according to interpolation in the turbine characteristic diagrams given in fig. 2 and 3, based on the actual output power of the generator.
And calculating the inlet total temperature of the turbine according to the first output power of the turbine.
In this embodiment, the total inlet temperature of the turbine is calculated as follows:
Pt＝Wa*Lt，
wherein, PtFor the first output power of the turbine, the value of which is taken from the actual output power P of the generatordWa is the flow parameter of the adjustable flow valve, LtIs the first output power per unit mass flow of the turbine.
And acquiring the total outlet temperature and the total outlet pressure of the turbine, and acquiring the inlet temperature, the relative physical rotating speed and the pressure before the turbine of the turbine.
And calculating the relative converted rotating speed of the turbine and the converted flow of the turbine according to the inlet total temperature of the turbine.
In this embodiment, the relative converted rotational speed of the turbine is calculated according to the following formula:
wherein n _ cor is the relative conversion speed of the turbine, n _ r is the relative physical speed of the turbine, Tt3Is the total inlet temperature of the turbine.
In this embodiment, the converted flow rate of the turbine is calculated as follows:
wherein Wa _ cor is the converted flow of the turbine, Wa is the flow parameter of the adjustable flow valve, Tt3Is the total inlet temperature, P, of the turbinet2Is the total pressure of the air source outlet.
And acquiring a turbine drop-out ratio array and an efficiency array under the relative conversion rotating speed of the turbine by adopting a Newton interpolation method on the turbine characteristic diagram.
In the present embodiment, referring to fig. 2, a newton interpolation method is used on the first turbine characteristic diagram shown in fig. 2 to obtain a turbine pressure drop ratio array at the relative converted rotation speed of the turbine.
Continuing with FIG. 3, an efficiency array for the turbine at the relative scaled rotational speed is obtained using Newton's interpolation on the second turbine map shown in FIG. 3.
And interpolating in the turbine pressure drop ratio array and the efficiency array to obtain the turbine pressure drop ratio and the efficiency of the turbine under the converted flow.
And calculating the second output power of the turbine according to the turbine pressure drop ratio and the efficiency.
In this embodiment, the second output power of the turbine is calculated as follows:
wherein L istA second output power per unit mass flow of the turbine and is assigned to Lt_new，CpTo a specific pressure heat capacity, Tt3Is the total inlet temperature of the turbine, pi is the turbine pressure drop ratio, etaTK is a constant for the expansion efficiency of the turbine.
And calculating the turbine work residual of the turbine according to the first output power and the second output power.
In this embodiment, the turbine work residual is calculated as follows:
E＝(Lt_new-Lt)/Lt，
wherein E is the turbine work residual, Lt_newSecond output power per unit mass flow of the turbine, LtIs the first output power per unit mass flow of the turbine.
And judging whether the turbine work residual is smaller than a set threshold value.
In this embodiment, if it is determined that the turbine work residual is smaller than the set threshold, the turbine inlet total pressure of the turbine is calculated according to the inlet total temperature of the turbine.
In this embodiment, the total turbine inlet pressure of the turbine is calculated as follows:
wherein Wa _ cor is the converted flow of the turbine, Wa is the flow parameter of the adjustable flow valve, Tt3The total inlet temperature of the turbine and the total turbine inlet pressure of the turbine.
And calculating the total pressure loss of the pipeline outlet according to the total inlet pressure of the turbine and the total pressure of the air source outlet.
In this embodiment, the total temperature loss amount is calculated as follows:
ΔT＝T1-T2，
wherein, Delta T is total temperature loss amount, T1Total outlet temperature, T, of the gas source2Is the total inlet temperature of the turbine.
Calculating the total pressure loss of the pipeline outlet according to the total inlet pressure of the turbine and the total outlet pressure of the air source, wherein the total pressure loss comprises the following steps:
the total pressure loss was calculated as follows:
ΔP＝P1-P2，
wherein, the delta P is total pressure loss amount, P1Total pressure of outlet, P, as gas source2Is the total inlet pressure of the turbine.
In some embodiments, the data acquisition processing apparatus 6 is configured to:
and judging whether the turbine work residual is smaller than a set threshold value.
If the turbine work residual is not smaller than the set threshold, the second output power of the turbine is recalculated until the turbine work residual is smaller than the set threshold.
In this embodiment, if the turbine work residual is not less than the set threshold, the method in the above embodiment is repeated, and the second output power of the turbine is recalculated until the turbine work residual is less than the set threshold.
In some embodiments, the data acquisition processing apparatus 6 is configured to:
adjusting the flow parameters of the adjustable flow valve, repeating the steps in the embodiment, and obtaining the total temperature loss and the total pressure loss of the pipeline outlet under the flow parameters of different adjustable flow valves;
and drawing curves of the total temperature loss and the total pressure loss of the pipeline outlet along with the change of flow parameters of the adjustable flow valve according to the total temperature loss and the total pressure loss of the pipeline outlet.
So far, the technical solutions of the present application have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present application is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the present application, and the technical scheme after the changes or substitutions will fall into the protection scope of the present application.
Claims (5)
1. A pressure and temperature loss measuring device of pipeline working medium based on a generator is characterized by comprising: an adjustable flow valve (2), a turbine (4), a generator (5) and a data acquisition and processing device (6),
the adjustable flow valve (2) is arranged at the joint of the pipeline (3) and the air source equipment (1);
the turbine (4) is connected with the pipeline (3) to convert the air pressure energy in the pipeline (3) into mechanical energy;
the generator (5) is connected with the output shaft of the turbine (4) to convert the mechanical energy into electric energy;
and the data acquisition and processing device (6) is connected with the generator (5) and is used for acquiring data and calculating the pressure loss and the temperature loss of a pipeline working medium.
2. The generator-based pipeline working medium pressure and temperature loss measuring device according to claim 1, wherein the data acquisition and processing device (6) is connected with an oil source to ensure the normal operation of the generator (5).
3. The generator-based pipe line working medium pressure and temperature loss measuring device according to claim 1, wherein the data acquisition and processing device (6) is a computer.
4. The generator-based pipe work medium pressure and temperature loss measuring device according to claim 1, characterized in that the turbine (4) and the pipe (3) are connected by a flange, where a sealing gasket is arranged.
5. The generator-based pipe line working medium pressure and temperature loss measuring device according to claim 1, characterized in that the data acquisition and processing device (6) is connected with the generator (5) through a test cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811296115.4A CN109297540B (en) | 2018-11-01 | 2018-11-01 | Generator-based pipeline working medium pressure and temperature loss measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811296115.4A CN109297540B (en) | 2018-11-01 | 2018-11-01 | Generator-based pipeline working medium pressure and temperature loss measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109297540A CN109297540A (en) | 2019-02-01 |
| CN109297540B true CN109297540B (en) | 2021-04-16 |
Family
ID=65145532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811296115.4A Active CN109297540B (en) | 2018-11-01 | 2018-11-01 | Generator-based pipeline working medium pressure and temperature loss measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109297540B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1871421A (en) * | 2003-09-23 | 2006-11-29 | 韦斯特波特研究公司 | Method for controlling combustion in an internal combustion engine and predicting performance and emissions |
| CN103670693A (en) * | 2012-08-31 | 2014-03-26 | 通用汽车环球科技运作有限责任公司 | Turbo compounding hybrid generator powertrain |
| CN103838920A (en) * | 2014-02-13 | 2014-06-04 | 南京航空航天大学 | Turboshaft engine dynamic real-time model establishing method and system |
| CN204388901U (en) * | 2015-01-09 | 2015-06-10 | 中国航空工业集团公司沈阳发动机设计研究所 | The integrated thermometric pressure tester of a kind of engine runner |
| CN105138854A (en) * | 2015-09-21 | 2015-12-09 | 北京航空航天大学 | Interpolation calculating method and system for liquid volume/mass |
| CN105298568A (en) * | 2015-10-07 | 2016-02-03 | 江曼 | Power generation system and control method thereof |
| CN107702924A (en) * | 2017-11-21 | 2018-02-16 | 贵州智慧能源科技有限公司 | Monitoring system and its trouble-shooter |
-
2018
- 2018-11-01 CN CN201811296115.4A patent/CN109297540B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1871421A (en) * | 2003-09-23 | 2006-11-29 | 韦斯特波特研究公司 | Method for controlling combustion in an internal combustion engine and predicting performance and emissions |
| CN103670693A (en) * | 2012-08-31 | 2014-03-26 | 通用汽车环球科技运作有限责任公司 | Turbo compounding hybrid generator powertrain |
| CN103838920A (en) * | 2014-02-13 | 2014-06-04 | 南京航空航天大学 | Turboshaft engine dynamic real-time model establishing method and system |
| CN204388901U (en) * | 2015-01-09 | 2015-06-10 | 中国航空工业集团公司沈阳发动机设计研究所 | The integrated thermometric pressure tester of a kind of engine runner |
| CN105138854A (en) * | 2015-09-21 | 2015-12-09 | 北京航空航天大学 | Interpolation calculating method and system for liquid volume/mass |
| CN105298568A (en) * | 2015-10-07 | 2016-02-03 | 江曼 | Power generation system and control method thereof |
| CN107702924A (en) * | 2017-11-21 | 2018-02-16 | 贵州智慧能源科技有限公司 | Monitoring system and its trouble-shooter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109297540A (en) | 2019-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7552614B2 (en) | System and method for determining functionality or accuracy of a sensor | |
| CN104154017B (en) | Water pump detecting system | |
| RU2451825C2 (en) | Method and device for measurements, inspection and/or continuous monitoring of turbine functioning | |
| CN112556978B (en) | Wind tunnel test airflow field rotation measuring device | |
| CN209295902U (en) | Oil-gas pipeline geometry deformation detection device | |
| Mohtar et al. | Describing uncertainties encountered during laboratory turbocharger compressor tests | |
| CN109341771B (en) | Pressure and temperature loss measuring method of pipeline working medium based on generator | |
| CN103842659A (en) | Systems and methods for determining a level of fouling of compressors | |
| CN207991706U (en) | Pipeline liquid sensor for measuring temperature | |
| CN109297540B (en) | Generator-based pipeline working medium pressure and temperature loss measuring device | |
| US20220205890A1 (en) | Device and method for fluid and equipment monitoring | |
| Hajilouy-Benisi et al. | Empirical assessment of the performance characteristics in turbocharger turbine and compressor | |
| CN207502554U (en) | A kind of transient state oil stream velocity measuring device during transformer short-circuit impact | |
| CN109655102B (en) | Method for measuring pressure and temperature loss of pipeline working medium based on hydraulic pump | |
| CN115525996B (en) | Turbine working blade flow characteristic rotation correction method and system | |
| Agnalt et al. | Onboard measurements of pressure pulsations in a low specific speed Francis model runner | |
| CN102384760A (en) | Novel calibrating device | |
| CN109839178A (en) | A kind of current vortex sensor method of calibration | |
| KR100429279B1 (en) | The performance measuring device for hydro-utilities with thermodynamic method | |
| CN117129043B (en) | Centralized monitoring system and monitoring method for high Wen Xuanjin flowmeter | |
| CN109631982A (en) | The pressure and temperature of pipeline working media based on hydraulic pump loses measuring device | |
| CN108387324A (en) | Pipeline internal medium temperature measuring transducer | |
| Kurz et al. | Site Performance Test Evaluation For Gas Turbine And Electric Motor Driven Compressors. | |
| Ye et al. | Turbine efficiency measurement by thermodynamic test method | |
| CN106289421A (en) | A kind of flow transducer control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200402 Address after: 100020 No. 1901 Motorcycle Building, 199 Chaoyang North Road, Chaoyang District, Beijing Applicant after: BEIJING QINGRUAN CHUANGXIANG INFORMATION TECHNOLOGY Co.,Ltd. Applicant after: SHENYANG AIRCRAFT DESIGN INSTITUTE, AVIATION INDUSTRY CORPORATION OF CHINA Address before: Thavorn street in Huanggu District of Shenyang city of Liaoning Province, No. 40 110035 Applicant before: SHENYANG AIRCRAFT DESIGN INSTITUTE, AVIATION INDUSTRY CORPORATION OF CHINA |
|
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ma Song Inventor after: Liu Jiao Inventor after: Liu Fangxing Inventor after: Huang Lei Inventor after: Huang Jinzhi Inventor before: Ma Song Inventor before: Li Jiyang Inventor before: Liu Fangxing Inventor before: Huang Lei Inventor before: Huang Jinzhi |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20201211 Address after: Thavorn street in Huanggu District of Shenyang city of Liaoning Province, No. 40 110035 Applicant after: SHENYANG AIRCRAFT DESIGN INSTITUTE, AVIATION INDUSTRY CORPORATION OF CHINA Address before: 1901 MoMA building, 199 Chaoyang North Road, Chaoyang District, Beijing 100020 Applicant before: BEIJING QINGRUAN CHUANGXIANG INFORMATION TECHNOLOGY Co.,Ltd. Applicant before: SHENYANG AIRCRAFT DESIGN INSTITUTE, AVIATION INDUSTRY CORPORATION OF CHINA |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |