CN109631982A - The pressure and temperature of pipeline working media based on hydraulic pump loses measuring device - Google Patents
The pressure and temperature of pipeline working media based on hydraulic pump loses measuring device Download PDFInfo
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- CN109631982A CN109631982A CN201811295356.7A CN201811295356A CN109631982A CN 109631982 A CN109631982 A CN 109631982A CN 201811295356 A CN201811295356 A CN 201811295356A CN 109631982 A CN109631982 A CN 109631982A
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- turbine
- hydraulic pump
- pressure
- temperature
- pipeline
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- 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 pressure and temperature of this application provides a kind of pipeline working media based on hydraulic pump loses measuring device, comprising: adjustable flow valve, turbine, hydraulic pump and data acquisition processing device, adjustable flow valve are set to the junction of pipeline and air machinery；Air pressure in pipeline is converted to mechanical energy by turbine and piping connection；The output axis connection of hydraulic pump and turbine, to convert mechanical energy into hydraulic energy；Data acquisition processing device is connect with hydraulic pump, for acquiring data and calculating the pressure loss and temperature loss.
Description
Technical field
This application involves technical field of aerospace, specifically provide the pressure and temperature of a kind of pipeline working media based on hydraulic pump
Degree loss measuring device.
Background technique
In existing loine pressure and temperature loss measurement method, the pressure of acquisition, temperature signal are turned by sensor
Be changed to the electric signal of identical frequency, by signal amplifier using experimental test data collection system by the signal processing of measurement at
Corresponding pressure, temperature value.The deficiency of the measurement method is to need to install more sensor in tube outlet circumferential cross-section, right
The flowing of pipe-line system will cause certain influence, simultaneously as installation sensor needs certain volumetric spaces, for outlet
The lesser pipeline of diameter, or the pipeline with variable diameter feature are not easy to measurement sensor installation.
The deviation as caused by measuring system installation will cause certain influence to data result, and there are systematic surveys
The deficiency that data precision not can guarantee, and it is suitable only for the biggish pipeline of outlet diameter, pipeline lesser for caliber is just uncomfortable
With.In addition, being measured under the higher environment of temperature since sensors towards ambient temperature is more sensitive in above-mentioned measurement method
When influence sensor service life, use scope relative narrower.The loine pressure and temperature for being related to different flow medias are damaged
When losing measurement, it can not accomplish to take into account, it is upper with certain limitation in application.
Summary of the invention
In order to solve the above-mentioned technical problem at least one, this application provides a kind of pipeline working media based on hydraulic pump
Pressure and temperature lose measuring device, comprising: adjustable flow valve, turbine, hydraulic pump and data acquisition processing device, institute
State the junction that adjustable flow valve is set to the pipeline and air machinery；The turbine and the piping connection, by institute
The air pressure stated in pipeline is converted to mechanical energy；The output axis connection of the hydraulic pump and the turbine, by the machinery
Hydraulic energy can be converted to；The data acquisition processing device is connect with the hydraulic pump, for acquiring data and calculating pressure damage
It becomes estranged temperature loss.
According at least one embodiment of the application, the data acquisition processing device is connected with oil sources, described in guaranteeing
Hydraulic pump operates normally.
According at least one embodiment of the application, the data acquisition processing device is computer.
According at least one embodiment of the application, by flanged joint between the turbine and the pipeline, in institute
It states flange connections and is provided with gasket.
According at least one embodiment of the application, the data acquisition processing device and the hydraulic pump pass through test electricity
Cable connection.
In the pressure loss and temperature loss measuring device of pipeline working media provided by the embodiments of the present application, without in pipe
Pressure and temperature sensor are installed in road, the pressure and temperature parameter of tube outlet can be directly obtained, while calculating can be passed through
The efficiency for obtaining pipeline, reaches that data are accurate, high reliablity, pipe applied widely and can satisfy any caliber and trend
Path loss loses the purpose of test, and easy to operate, and practicability is good.
Detailed description of the invention
Fig. 1 is the pressure loss of pipeline working media provided by the embodiments of the present application and the structure of temperature loss measuring device
Schematic diagram；
Fig. 2 is the first turbine characteristic figure provided by the embodiments of the present application；
Fig. 3 is the second turbine characteristic figure provided by the embodiments of the present application.
Wherein:
1, air machinery；2, adjustable flow valve；3, pipeline is tested；4, turbine；5, hydraulic pump；6, data acquisition device；
7, power supply.
Specific embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related application, rather than the restriction to this application.It also should be noted that in order to
Convenient for description, part relevant to the application is illustrated only in attached drawing.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
It should be noted that in the description of the present application, term " center ", "upper", "lower", "left", "right", "vertical",
The direction of the instructions such as "horizontal", "inner", "outside" or the term of positional relationship are direction based on the figure or positional relationship, this
It is intended merely to facilitate description, rather than indication or suggestion described device or element must have a particular orientation, with specific
Orientation construction and operation, therefore should not be understood as the limitation to the application.In addition, term " first ", " second ", " third " are only used
In description purpose, it is not understood to indicate or imply relative importance.
In addition it is also necessary to explanation, in the description of the present application unless specifically defined or limited otherwise, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.To those skilled in the art, it can understand that above-mentioned term exists as the case may be
Concrete meaning in the application.
Fig. 1 is the pressure loss of pipeline working media provided by the embodiments of the present application and the structure of temperature loss measuring device
Schematic diagram.
As shown in Figure 1, the pressure loss and temperature loss measuring device of pipeline working media include: adjustable flow valve 2, whirlpool
Turbine 4, hydraulic pump 5 and data acquisition processing device 6.
Wherein, adjustable flow valve 2 is set to the junction of pipeline 3 Yu air machinery 1；Turbine 4 is connect with pipeline 3, with
Air pressure in pipeline 3 is converted into mechanical energy；The output axis connection of hydraulic pump 5 and turbine 4, to convert mechanical energy into liquid
Pressure energy；Data acquisition device 6 is connect with hydraulic pump 5, for acquiring data and calculating the pressure loss and temperature loss.
Optionally, data acquisition processing device 6 is connected with oil sources, to guarantee that hydraulic pump 5 operates normally.
Optionally, gasket is provided in flange connections by flanged joint between turbine 4 and pipeline 3.
Optionally, data acquisition processing device 6 is connect with hydraulic pump 5 by test cable.
Optionally, data acquisition processing device 6 is computer.
In some embodiments, data acquisition processing device 6 is configured as:
The acting of unit mass flow, the import of the flow parameter of adjustable flow valve, design point turbine of given turbine
Pressure before the turbine of temperature, the opposite physics revolving speed of turbine and turbine.
Import oil pressure Pin, outlet oil pressure Pout and the flow Wf of hydraulic pump are obtained, and according to import oil pressure Pin, outlet oil
Pout and flow Wf is pressed to calculate the real output of hydraulic pump.
In the present embodiment, the real output of hydraulic pump is calculated as follows:
Pd=Wf* (Pout-Pin) * η,
Wherein, PdFor real output, Pout is outlet oil pressure, and Pin is import oil pressure, and η is the efficiency of hydraulic pump.
According to real output, the first output power of turbine is calculated.
In the present embodiment, according to the real output of generator, in the turbine characteristic figure provided according to Fig. 2 and Fig. 3
It can obtain the first output power of hydraulic pump.
According to the first output power P of turbinet, calculate the import total temperature T of turbinet3。
In the present embodiment, the import total temperature of turbine is calculated according to the following formula:
Pt=Wa*Lt,
Wherein, PtFor the first output power, Wa is the flow parameter of adjustable flow valve, LtFor the unit mass stream of turbine
Amount acting, CpFor specific heat capacity at constant pressure, Tt3For the import total temperature of turbine, π is turbine blow down ratio, ηTFor the expansion efficiency of turbine,
pt3For stagnation pressure before turbine, pt4For stagnation pressure after turbine.K is constant.
Obtain the outlet total temperature T of hydraulic pumpt2, outlet stagnation pressure Pt2, obtain the inlet temperature T of turbinet3_d, opposite physics turns
Pressure P before fast n_r and turbinet4°
According to the import total temperature T of turbinet3, calculate the opposite corrected spool speed n_cor of turbine and the conversion stream of turbine
Measure Wa_cor.
In the present embodiment, the opposite corrected spool speed of turbine is calculated according to the following formula:
Wherein, n_cor is the opposite corrected spool speed of turbine, and n_r is the opposite physics revolving speed of turbine, Tt3For turbine
Import total temperature；
The reduced discharge of turbine is calculated according to the following formula:
Wherein, Wa_cor is the reduced discharge of turbine, and Wa is the flow parameter of adjustable flow valve, Tt3For turbine into
Mouth total temperature, Pt2For the stagnation pressure of source outlet.
Newton interpolating method is used on turbine characteristic figure, obtains the turbine blow down ratio number under the opposite corrected spool speed of turbine
Group and efficiency array.
In the present embodiment, referring to Figure 2 together, Fig. 2 shows the first turbine characteristic figure on use Newton interpolating method,
Obtain the turbine blow down ratio array under the opposite corrected spool speed of turbine.
With continued reference to Fig. 3, Newton interpolating method is used on the second turbine characteristic figure shown in Fig. 3, obtains the phase of turbine
To the efficiency array under corrected spool speed.
The interpolation in turbine blow down ratio array and efficiency array, obtain turbine blow down ratio under the reduced discharge of turbine and
Efficiency.
According to turbine blow down ratio and efficiency, the second output power of turbine is calculated.
In the present embodiment, the second output power of turbine is calculated according to the following formula:
Pt=Wa*Lt,
Wherein, PtFor output power, Wa is the flow parameter of adjustable flow valve, LtIt is done for the unit mass flow of turbine
Function, CpFor specific heat capacity at constant pressure, Tt3For the import total temperature of turbine, π is turbine blow down ratio, ηTFor the expansion efficiency of turbine, pt3For
Stagnation pressure before turbine, pt4For stagnation pressure after turbine.K is constant.
According to the first output power and the second output power, the turbine function residual error of turbine is calculated.
In the present embodiment, turbine function residual error is calculated according to the following formula:
E=(Lt_new-Lt)/Lt,
Wherein, E is turbine function residual error, Lt_newFor the second output power of turbine, LtFor the first output work of turbine
Rate.
Judge whether turbine function residual error is less than given threshold.
In the present embodiment, if judging, turbine function residual error is less than given threshold.
According to the import total temperature of turbine, the turbine inlet stagnation pressure of turbine is calculated.
In the present embodiment, the turbine inlet stagnation pressure of the turbine is calculated according to the following formula:
Wherein, Wa_cor is the reduced discharge of turbine, and Wa is the flow parameter of adjustable flow valve, Tt3For turbine into
Mouth total temperature is the turbine inlet stagnation pressure of turbine.
According to the import total temperature of turbine and the inlet temperature of turbine, the total temperature loss of tube outlet is calculated, and, root
According to the import stagnation pressure of turbine and the outlet stagnation pressure of hydraulic pump, the pitot loss of tube outlet is calculated.
In the present embodiment, total temperature loss amount is calculated according to the following formula:
Δ T=T1-T2,
Wherein, Δ T is total temperature loss amount, T1For the outlet total temperature of hydraulic pump, T2For the import total temperature of hydraulic pump.
According to the outlet stagnation pressure of the import stagnation pressure of turbine and hydraulic pump, the pitot loss of tube outlet is calculated, comprising:
Pitot loss amount is calculated according to the following formula:
Δ P=P1-P2,
Wherein, Δ P is pitot loss amount, P1For the outlet stagnation pressure of turbine, P2For the import stagnation pressure of turbine.
In some embodiments, data acquisition processing device 6 is configured that
Judge whether turbine function residual error is less than given threshold.
If turbine function residual error is not less than given threshold, the second output power of turbine is recalculated, until turbine function
Residual error is less than given threshold.
In the present embodiment, if turbine function residual error is not less than given threshold, repeatedly the method in above-described embodiment, heavy
New the second output power for calculating turbine, until turbine function residual error is less than given threshold.
In some embodiments, data acquisition processing device 6 is configured as:
The flow parameter of adjustable flow valve is adjusted, the step in above-described embodiment is repeated, is obtained in different adjustable flows
The total temperature of tube outlet under the flow parameter of valve loses and pitot loss；
According to the loss of the total temperature of tube outlet and pitot loss, the total temperature loss for drawing tube outlet and pitot loss are with can
Adjust the curve of the flow parameter variation of flow valve.
So far, it has been combined preferred embodiment shown in the drawings and describes the technical solution of the application, still, this field
Technical staff is it is easily understood that the protection scope of the application is expressly not limited to these specific embodiments.Without departing from this
Under the premise of the principle of application, those skilled in the art can make equivalent change or replacement to the relevant technologies feature, these
Technical solution after change or replacement is fallen within the protection scope of the application.
Claims (5)
1. a kind of pressure and temperature of pipeline working media based on hydraulic pump loses measuring device characterized by comprising can
Flow valve (2), turbine (4), hydraulic pump (5) and data acquisition processing device (6) are adjusted,
The adjustable flow valve (2) is set to the junction of the pipeline (3) Yu air machinery (1)；
The turbine (4) and the piping connection, are converted to mechanical energy for the air pressure in the pipeline (3)；
The output axis connection of the hydraulic pump (5) and the turbine (4), is converted to hydraulic energy for the mechanical energy；
The data acquisition processing device (6) connect with the hydraulic pump (5), for acquiring data and calculating the pressure loss and temperature
Degree loss.
2. the pressure and temperature of the pipeline working media according to claim 1 based on hydraulic pump loses measuring device,
It is characterized in that, the data acquisition processing device (6) is connected with oil sources, to guarantee that the hydraulic pump (5) operate normally.
3. the pressure and temperature of the pipeline working media according to claim 1 based on hydraulic pump loses measuring device,
It is characterized in that, the data acquisition processing device (6) is computer.
4. the pressure and temperature of the pipeline working media according to claim 1 based on hydraulic pump loses measuring device,
It is characterized in that, by flanged joint between the turbine (4) and the pipeline (3), is provided in the flange connections close
Packing.
5. the pressure and temperature of the pipeline working media according to claim 1 based on hydraulic pump loses measuring device,
It is characterized in that, the data acquisition processing device (6) is connect with the hydraulic pump (5) by test cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811295356.7A CN109631982A (en) | 2018-11-01 | 2018-11-01 | The pressure and temperature of pipeline working media based on hydraulic pump loses measuring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811295356.7A CN109631982A (en) | 2018-11-01 | 2018-11-01 | The pressure and temperature of pipeline working media based on hydraulic pump loses measuring device |
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| CN109631982A true CN109631982A (en) | 2019-04-16 |
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| CN201811295356.7A Pending CN109631982A (en) | 2018-11-01 | 2018-11-01 | The pressure and temperature of pipeline working media based on hydraulic pump loses measuring device |
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Citations (7)
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|---|---|---|---|---|
| CN202117831U (en) * | 2011-03-21 | 2012-01-18 | 中国人民解放军总后勤部油料研究所 | Self-holding type power generation device based on oil transportation power of pipeline |
| CN203784021U (en) * | 2014-04-28 | 2014-08-20 | 泸州沱江液压件有限公司 | Multifunctional comprehensive hydraulic experiment device |
| CN104246210A (en) * | 2012-02-18 | 2014-12-24 | 海德鲁控股有限责任公司 | Turbine system for generating power from a flow of liquid, and related systems and methods |
| US20150102603A1 (en) * | 2012-06-19 | 2015-04-16 | Sensus Spectrum Llc | Method and device for supplying a measurement electronics system with electrical energy |
| RO131118A0 (en) * | 2015-09-29 | 2016-05-30 | Institutul Naţional De Cercetare-Dezvoltare Pentru Inginerie Electrică Icpe - Ca | Stand for studying rotational biphase flowing with adverse pressure gradient |
| CN108488631A (en) * | 2018-02-05 | 2018-09-04 | 晖保智能科技（上海）有限公司 | A kind of heat distribution pipe network remote supervision system based on big-dipper satellite |
| CN108661891A (en) * | 2018-05-09 | 2018-10-16 | 浙江工业大学 | A kind of low cost metering diaphragm pump diaphragm breakage leakage detection method |
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2018
- 2018-11-01 CN CN201811295356.7A patent/CN109631982A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202117831U (en) * | 2011-03-21 | 2012-01-18 | 中国人民解放军总后勤部油料研究所 | Self-holding type power generation device based on oil transportation power of pipeline |
| CN104246210A (en) * | 2012-02-18 | 2014-12-24 | 海德鲁控股有限责任公司 | Turbine system for generating power from a flow of liquid, and related systems and methods |
| US20150102603A1 (en) * | 2012-06-19 | 2015-04-16 | Sensus Spectrum Llc | Method and device for supplying a measurement electronics system with electrical energy |
| CN203784021U (en) * | 2014-04-28 | 2014-08-20 | 泸州沱江液压件有限公司 | Multifunctional comprehensive hydraulic experiment device |
| RO131118A0 (en) * | 2015-09-29 | 2016-05-30 | Institutul Naţional De Cercetare-Dezvoltare Pentru Inginerie Electrică Icpe - Ca | Stand for studying rotational biphase flowing with adverse pressure gradient |
| CN108488631A (en) * | 2018-02-05 | 2018-09-04 | 晖保智能科技（上海）有限公司 | A kind of heat distribution pipe network remote supervision system based on big-dipper satellite |
| CN108661891A (en) * | 2018-05-09 | 2018-10-16 | 浙江工业大学 | A kind of low cost metering diaphragm pump diaphragm breakage leakage detection method |
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Effective date of registration: 20200407 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 |
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Inventor after: Ma Song Inventor after: Liu Suping Inventor after: Liu Jiao Inventor after: Li Jiyang Inventor after: Huang Lei Inventor before: Ma Song Inventor before: Liu Fangxing Inventor before: Li Jiyang Inventor before: Zhang Zhiwei Inventor before: Liu Yaoyang |
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Effective date of registration: 20210106 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 |
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Application publication date: 20190416 |
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