CN107063693A - Energy-saving expander performance testing device and its method of work - Google Patents
Energy-saving expander performance testing device and its method of work Download PDFInfo
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- CN107063693A CN107063693A CN201710401834.7A CN201710401834A CN107063693A CN 107063693 A CN107063693 A CN 107063693A CN 201710401834 A CN201710401834 A CN 201710401834A CN 107063693 A CN107063693 A CN 107063693A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K13/00—General layout or general methods of operation of complete plants
- F01K13/003—Arrangements for measuring or testing
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Abstract
The present invention relates to a kind of energy-saving expander performance testing device and its method of work, it is characterised in that：Energy-saving expander performance testing device, it is characterised in that：Including activation system, circulation system and monitoring system；The present invention can test working characteristics of a variety of working medium under different operating conditions, system is closed operation, it is to avoid the waste of working medium in open system.Heater and condenser are saved in the circulatory system, it is to avoid heat from heat source is largely taken away by low-temperature receiver, has saved testing cost.
Description
Technical field：
The present invention relates to a kind of energy-saving expander performance testing device and its method of work.
Background technology：
The energy utilization rate of China is low, and the highly energy-consuming trade such as steel, metallurgy and chemical industry has substantial amounts of low grade residual heat.Using having
Machine Rankine cycle can efficiently reclaim low temperature exhaust heat and be generated electricity, and realize making full use of for the energy.Expanding machine is used as organic Rankine
The power output part of circulation, recovery of its performance to residual heat resources has important influence.In order to test expanding machine various
Running status under operating mode, it is ensured that expanding machine it is efficiently and smoothly operated, need to pass through test platform the performance of expanding machine is carried out it is real
Test is tried.
Application No. CN201610164576.0 Chinese invention patent discloses a kind of scroll expander performance test system
System, is sequentially connected by air compressor machine, air accumulator, drier, filter, scroll expander, dynamometer machine and constituted.The system uses normal temperature
Dry air under normal pressure after dehydrating and removing impurities is test working medium, utilizes each of the measurement of power machine testing scroll expander with control system
Individual output performance parameter, and by MCGS configuration softwares by all instrument to collect to signal upload on host computer so that
To the relation of the parameter such as output work, moment of torsion and rotating speed and its inlet pressure, inlet temperature, back pressure and mass flow.Above-mentioned hair
The technical scheme of bright patent is the Performance Test System based on scroll expander, and the system has simple in construction, maintenance and installation side
Just advantage, but the system is open system, can only use air as test working medium.Open circulation can not reclaim working medium, if
When testing working medium for organic working medium, the huge waste of working medium and the increase of testing cost, therefore detectable organic working medium can be caused
The test system of expanding machine should use closed cycle.
Application No. CN201610232607.1 Chinese invention patent discloses a kind of having by thermal source of fume afterheat
Machine Rankine cycle.Foregoing invention uses organic working medium closed cycle, can make full use of fume afterheat.But because flue gas need to be by other
Production unit is provided, and parameter is influenceed by production process, and excursion is larger, is not suitable for the heat as expanding machine test system
Source.
The content of the invention：
It is an object of the invention to overcoming above-mentioned the deficiencies in the prior art there is provided a kind of energy-saving expander performance testing device and
Its method of work, without boiler and condenser during the normal operation of the present invention, it is to avoid heat from heat source is taken away by low-temperature receiver, energy-saving potential
It is huge.
Energy-saving expander performance testing device of the present invention, it is characterised in that：Including activation system, thermodynamic cycle
System and monitoring system；
Wherein activation system includes being in turn connected to form the starting trouble of circulation, the first stop valve, low pressure buffer tank 3 and second section
Only valve；Starting trouble is electrically heated boiler, and it treats that temperature reaches and set initial stage working medium to be heated into design temperature in experiment beginning
Can be out of service after definite value；
Circulation system include being in turn connected to form the low pressure buffer tank of circulation, compressor, high-pressure buffering pot, regulating valve and by
Expanding machine is surveyed, other be connected to by working medium pump, the tested expanding machine is connected to measurement of power between the low pressure buffer tank and high-pressure buffering pot
Machine；
Monitoring system includes the first flow sensor positioned at suction port of compressor end, the second flow sensing of working medium pump arrival end
Device, is tested the 3rd flow sensor at expander inlet end, is tested first temperature sensor and the first pressure at expander outlet end
Force snesor, compressor outlet second temperature sensor and second pressure sensor, the 3rd temperature of the working medium pump port of export are passed
Sensor and the 3rd pressure sensor, and tested expander inlet end the 4th temperature sensor and the 4th pressure sensor.
Further, it is also other between above-mentioned low pressure buffer tank and high-pressure buffering pot to be connected to pressure-reducing valve, the high-pressure buffering pot
It is also associated with a cooling water pump.
The method of work of the energy-saving expander performance testing device of the present invention, is illustrated by working medium of water：
When the device starts, the first stop valve and the second stop valve are first turned on, starting trouble is run；The built-in water of starting trouble
Pump squeezes into the working medium in low pressure buffer tank in starting trouble, and working medium is slow into low pressure after endothermic temperature rise in starting trouble
Rush in tank, be then again introduced into starting trouble circulation heat absorption；Treat that the working medium in low pressure buffer tank reaches 1.0MPa, at 179.9 DEG C,
Compressor is opened, high-pressure buffering pot will be sent into after the both vapor compression isolated in low pressure buffer tank to 2.5MPa；Open regulating valve,
Working substance steam enters tested expanding machine and carries out expansion work, and the parameters such as power output, the moment of torsion of expanding machine are measured by dynamometer machine；Do
Exhaust steam after complete work(returns to low pressure buffer tank, if organic working medium is wet working medium, and the exhaust steam after expansion is liquid-vapor mixture, working medium
In low pressure buffer tank after steam-water separation, the saturated vapor separated（1.0MPa, 179.9 DEG C）Be again introduced into compressor after
Continuous circulation；Working medium is superheated steam at compressor outlet（2.5MPa, 313.1 DEG C）, and when normally running, be in high-pressure buffering pot
Saturation state, therefore, the cooling water that unnecessary heat is squeezed into by cooling water pump are taken away；During normal operation, expanding machine feeding is tested
The saturated solution that moist steam in low pressure buffer tank is isolated, which is stayed in low pressure buffer tank, can cause its liquefaction constantly rise, in order to tie up
Low pressure buffer tank and the liquid level equilibrium in high-pressure buffering pot are held, working medium pump can be by the low pressure saturation working medium in low pressure buffer tank
（1MPa）High-pressure buffering pot is sent into after pressurization（2.5MPa）It is interior；Pipeline where pressure-reducing valve is bypass duct, and tested expanding machine goes out
During existing failure, the working medium in high-pressure buffering pot enters low pressure buffer tank after being depressured by pressure-reducing valve；
The temperature and pressure of tested expander outlet is monitored by the first temperature sensor and first pressure sensor.Compressor
The temperature and pressure of outlet is monitored by second temperature sensor and second pressure sensor.The temperature and pressure of working medium pump discharge
Power is monitored by three-temperature sensor and the 3rd pressure sensor.The temperature and pressure of tested expander inlet is by the 4th temperature
Degree sensor and the 4th pressure sensor are monitored；
The flow of suction port of compressor is monitored by first flow sensor.The flow of working medium pump intake is by second flow sensor
It is monitored.The flow of tested expander inlet is monitored by the 3rd flow sensor.
Apparatus of the present invention are in normal operation, and the working medium of HTHP is changed into the steaming of low-temp low-pressure after expander
Vapour, is continued cycling through by compressor compresses to high-temperature high-pressure state again after vapor-liquid separation, by changing compressor horsepower, can adjust
The inlet temperature and pressure of expanding machine；The flow of expanding machine is can adjust by changing expander inlet control valve opening, so as to survey
Try performance parameter of the expanding machine under various operating modes.The capital equipment of monitoring system is the multigroup TEMP set in platform
Device, pressure sensor and flowmeter etc., its data gathered are finally transmitted to terminal and show and store.
Compared with prior art, the present invention has advantages below：
（1）The present invention can test working characteristics of a variety of working medium under different operating conditions, and system is closed operation, it is to avoid
The waste of working medium in open system.
（2）Of the invention maximum difference is compared with other enclosed test systems, and heating is saved in the circulatory system
Device and condenser, it is to avoid heat from heat source is largely taken away by low-temperature receiver, has saved testing cost.
（3）Test system does not contain the heater and condenser of costliness, simplifies system architecture, saves the same of system investments
When, also it is easily installed and repairs.
Brief description of the drawings：
Fig. 1 is the structural representation of the embodiment of the present invention；
It is designated in figure：1- starting troubles；The stop valves of 2- first；3- low pressure buffer tanks；The stop valves of 4- second；The temperature of 5- first is passed
Sensor；6- first pressure sensors；7- first flowmeters；8- compressors；9- second temperature sensors；10- second pressures are sensed
Device；11- high-pressure buffering pots；12- second flowmeters；13- working medium pumps；14- three-temperature sensors；The pressure sensors of 15- the 3rd；
16- cooling water pumps；17- regulating valves；The temperature sensors of 18- the 4th；The pressure sensors of 19- the 4th；The flowmeters of 20- the 3rd；21- quilts
Survey expanding machine；22- dynamometer machines；23- pressure-reducing valves.
Embodiment：
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
Energy-saving expander performance testing device of the present invention, it is characterised in that：Including activation system, thermodynamic cycle
System and monitoring system；
Wherein activation system includes being in turn connected to form starting trouble 1, the first stop valve of circulation（2）, low pressure buffer tank（3）With
Second stop valve（4）；Starting trouble is electrically heated boiler, and it is treated initial stage working medium to be heated into design temperature in experiment beginning
Temperature reaches can be out of service after setting value；
Circulation system includes the low pressure buffer tank for being in turn connected to form circulation（3）, compressor（8）, high-pressure buffering pot（11）、
Regulating valve（17）With tested expanding machine（21）, the low pressure buffer tank（3）With high-pressure buffering pot（11）Between other be connected to working medium pump
（13）, the tested expanding machine（21）Side is connected to dynamometer machine（22）；
Monitoring system includes being located at compressor（8）The first flow sensor of arrival end（7）, working medium pump（13）The second of arrival end
Flow sensor（12）, it is tested expanding machine（21）3rd flow sensor of arrival end（20）, it is tested expanding machine（2）1 port of export
The first temperature sensor（5）With first pressure sensor（6）, compressor（8）Port of export second temperature sensor（9）With second
Pressure sensor（10）, working medium pump（13）The three-temperature sensor of the port of export（14）With the 3rd pressure sensor（15）, and
Tested expanding machine（21）4th temperature sensor of arrival end（18）With the 4th pressure sensor（19）.
Further, above-mentioned low pressure buffer tank（3）With high-pressure buffering pot（11）Between also other be connected to pressure-reducing valve（23）, it is described
High-pressure buffering pot（11）It is also associated with a cooling water pump.
The method of work of the energy-saving expander performance testing device of the present invention,
When the device starts, the first stop valve is first turned on（2）With the second stop valve（4）, run starting trouble（1）；Start pot
Stove（1）Built-in water pump by low pressure buffer tank（3）Interior working-medium water squeezes into starting trouble（1）In, working medium is in starting trouble（1）In
Enter low pressure buffer tank after endothermic temperature rise（3）It is interior, then it is again introduced into starting trouble（1）Circulation heat absorption；Treat low pressure buffer
Tank（3）Interior working medium reaches 1.0MPa, at 179.9 DEG C, opens compressor（8）, by low pressure buffer tank（3）The steam inside isolated
It is compressed to after 2.5MPa and sends into high-pressure buffering pot（11）；Open regulating valve（17）, working substance steam, which enters, is tested expanding machine（21）Enter
Row expansion work, by dynamometer machine（22）Measure expanding machine（21）The parameter such as power output, moment of torsion；The exhaust steam after work(is finished to return to
Low pressure buffer tank（3）If organic working medium is wet working medium, the exhaust steam after expansion is liquid-vapor mixture, and working medium is in low pressure buffer tank
（3）The interior saturated vapor after steam-water separation, separated（1.0MPa, 179.9 DEG C）It is again introduced into compressor（8）Continue to follow
Ring；Compressor（8）Exit working medium is superheated steam（2.5MPa, 313.1 DEG C）, and when normally running, high-pressure buffering pot（11）
Interior is saturation state, and therefore, unnecessary heat is by cooling water pump（16）The cooling water squeezed into is taken away；During normal operation, it is tested swollen
Swollen machine（21）Send into low pressure buffer tank（3）The saturated solution that interior moist steam is isolated stays in low pressure buffer tank（3）It is interior to cause it
Liquefaction constantly rise, in order to maintain low pressure buffer tank（3）With high-pressure buffering pot（11）Interior liquid level equilibrium, working medium pump（13）Can be by
Low pressure buffer tank（3）Interior low pressure saturation working medium（1MPa）High-pressure buffering pot is sent into after pressurization（11）（2.5MPa）It is interior；Pressure-reducing valve
（23）The pipeline at place is bypass duct, is tested expanding machine（21）During failure, high-pressure buffering pot（11）Interior working medium can be by
Pressure-reducing valve（23）Enter low pressure buffer tank after decompression（3）；
Tested expanding machine（21）The temperature and pressure of outlet is by the first temperature sensor（5）With first pressure sensor（6）Carry out
Monitoring.Compressor（8）The temperature and pressure of outlet is by second temperature sensor（9）With second pressure sensor（10）Supervised
Survey.Working medium pump（13）The temperature and pressure of outlet is by three-temperature sensor（14）With the 3rd pressure sensor（15）Supervised
Survey.Tested expanding machine（21）The temperature and pressure of entrance is by the 4th temperature sensor（18）With the 4th pressure sensor（19）Carry out
Monitoring；
Compressor（8）The flow of entrance is by first flow sensor（7）It is monitored.Working medium pump（13）The flow of entrance is by second
Flow sensor（12）It is monitored.Tested expanding machine（21）The flow of entrance is by the 3rd flow sensor（20）It is monitored.
Apparatus of the present invention are in normal operation, and the working medium of HTHP is changed into the steaming of low-temp low-pressure after expander
Vapour, is continued cycling through by compressor compresses to high-temperature high-pressure state again after vapor-liquid separation, by changing compressor horsepower, can adjust
The inlet temperature and pressure of expanding machine；The flow of expanding machine is can adjust by changing expander inlet control valve opening, so as to survey
Try performance parameter of the expanding machine under various operating modes.The capital equipment of monitoring system is the multigroup TEMP set in platform
Device, pressure sensor and flowmeter etc., its data gathered are finally transmitted to terminal and show and store.
If the flow of tested expanding machine is 13t/h during normal operation of the invention, compressor wasted work is 908.2kW, working medium
Total wasted work of pump and cooling water pump is 2.4 kW, and total system power consumption is 910.6 kW, and commercial power price is in terms of 0.8 yuan/degree
Calculate, the required electricity charge per hour are 728.5 yuan during normal operation.Compared with the runtime of traditional rankine cycle, expander inlet
And in the case of discharge state identical, when using boiler efficiency for 0.8 oil burning boiler per hour needed for diesel consumption be
0.8239 ton, diesel-fuel price is with 6500 yuan/ton of calculating, then it is 5355.4 yuan, the fuel of two kinds of systems that fuel oil hourly, which expends,
Power cost difference is huge.This is higher mainly due to expander outlet exhaust temperature and pressure, boiler in traditional rankine cycle
The heat energy that fuel combustion is discharged only has about 4.7% conversion for output work, and the cooled water of remaining energy is taken away, and causes
The huge waste of the energy.
The present invention is illustrated by working medium of water, but working medium is not limited to water, organic working medium and other low boiling working fluids etc.
Working medium of the invention can be used as.
Present invention omits the boiler in traditional rankine cycle and condenser, to ensure the normal operation of tested expanding machine,
The saturated vapor and saturation water for being isolated the liquid-vapor mixture that expanding machine is discharged using compressor and pump are pressurized to expansion again
Machine inlet condition.
Present system is simple in construction, reasonable utilization of energy, the cost of investment for the equipment not only saved, while having saved and being
The operating cost of system.
The foregoing is only presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification, should all belong to the covering scope of the present invention.
Claims (3)
1. a kind of energy-saving expander performance testing device, it is characterised in that：Including activation system, circulation system and prison
Examining system；
Wherein activation system includes being in turn connected to form the starting trouble of circulation（1）, the first stop valve（2）, low pressure buffer tank（3）
With the second stop valve（4）；Starting trouble is electrically heated boiler, and it is that working medium is heated into design temperature at experiment beginning initial stage,
Can be out of service after temperature reaches setting value；
Circulation system includes the low pressure buffer tank for being in turn connected to form circulation（3）, compressor（8）, high-pressure buffering pot（11）、
Regulating valve（17）With tested expanding machine（21）, the low pressure buffer tank（3）With high-pressure buffering pot（11）Between other be connected to working medium pump
（13）, the tested expanding machine（21）Side is connected to dynamometer machine（22）；
Monitoring system includes being located at compressor（8）The first flow sensor of arrival end（7）, working medium pump（13）The second of arrival end
Flow sensor（12）, it is tested expanding machine（21）3rd flow sensor (20) of arrival end, is tested expanding machine (21) port of export
The first temperature sensor (5) and first pressure sensor (6), compressor (8) port of export second temperature sensor (9) and second
Pressure sensor (10), the three-temperature sensor (14) and the 3rd pressure sensor (15) of working medium pump (13) port of export, and
4th temperature sensor of tested expanding machine (21) arrival end（18）With the 4th pressure sensor (19).
2. energy-saving expander performance testing device according to claim 1, it is characterised in that：The low pressure buffer tank
（3）With high-pressure buffering pot（11）Between also other be connected to pressure-reducing valve（23）, the high-pressure buffering pot（11）It is also associated with a cooling water
Pump（16）.
3. a kind of method of work of energy-saving expander performance testing device as claimed in claim 1, it is characterised in that：
Illustrated by working medium of water：When the device starts, the first stop valve is first turned on（2）With the second stop valve（4）, operation
Starting trouble（1）；Starting trouble（1）Built-in water pump by low pressure buffer tank（3）Interior working medium squeezes into starting trouble（1）In, work
Matter is in starting trouble（1）Enter low pressure buffer tank after middle endothermic temperature rise（3）It is interior, then it is again introduced into starting trouble（1）Follow
Ring absorbs heat；Treat low pressure buffer tank（3）Interior working medium reaches 1.0MPa, at 179.9 DEG C, opens compressor（8）, by low pressure buffer tank
（3）The both vapor compression inside isolated is to sending into high-pressure buffering pot after 2.5MPa（11）；Open regulating valve（17）, working substance steam entrance
Tested expanding machine（21）Expansion work is carried out, by dynamometer machine（22）Measure expanding machine（21）The parameter such as power output, moment of torsion；Do
Exhaust steam after complete work(returns to low pressure buffer tank 3, if working medium is wet working medium, the exhaust steam after expansion is liquid-vapor mixture, and working medium exists
Low pressure buffer tank（3）Interior to separate 1.0MPa after steam-water separation, 179.9 DEG C of saturated vapor is again introduced into compressor（8）
Continue cycling through；The exit working medium of compressor 8 is 2.5MPa, 313.1 DEG C of superheated steams, and when normally running, high-pressure buffering pot
（11）Interior is saturation state, and therefore, unnecessary heat is by cooling water pump（16）The cooling water squeezed into is taken away；During normal operation, quilt
Survey expanding machine（21）Send into low pressure buffer tank（3）The saturated solution that interior moist steam is isolated stays in low pressure buffer tank（3）It is interior to make
Its liquefaction constantly rise is obtained, in order to maintain low pressure buffer tank（3）With high-pressure buffering pot（11）Interior liquid level equilibrium, working medium pump（13）
Can be by low pressure buffer tank（3）2.5MPa high-pressure buffering pots are sent into after interior 1MPa low pressure saturations working medium pressurization（11）It is interior；Pressure-reducing valve
（23）The pipeline at place is bypass duct, is tested expanding machine（21）During failure, high-pressure buffering pot（11）Interior working medium can be by
Pressure-reducing valve（23）Enter low pressure buffer tank after decompression（3）；
Tested expanding machine（21）The temperature and pressure of outlet is carried out by the first temperature sensor (5) and first pressure sensor (6)
Monitoring, the temperature and pressure of compressor (8) outlet is supervised by second temperature sensor (9) and second pressure sensor (10)
Survey, the temperature and pressure of working medium pump (13) outlet is supervised by three-temperature sensor (14) and the 3rd pressure sensor (15)
Survey, the temperature and pressure for being tested expanding machine (21) entrance is carried out by the 4th temperature sensor (18) and the 4th pressure sensor (19)
Monitoring；
The flow of compressor (8) entrance is monitored by first flow sensor (7), and the flow of working medium pump (13) entrance is by second
Flow sensor (12) is monitored, and the flow of tested expanding machine (21) entrance is monitored by the 3rd flow sensor (20).
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| CN108956183A (en) * | 2018-09-13 | 2018-12-07 | 上海齐耀膨胀机有限公司 | Expanding machine experimental rig and its test method |
| CN112412769A (en) * | 2020-11-30 | 2021-02-26 | 青岛万宝压缩机有限公司 | Compressor noise vibration testing system and method |
| CN113250947A (en) * | 2021-05-20 | 2021-08-13 | 势加透博洁净动力如皋有限公司 | Fuel cell air compressor durability test system and method |
| CN113865909A (en) * | 2021-10-11 | 2021-12-31 | 江苏国富氢能技术装备股份有限公司 | Performance testing device for refrigeration expander |
| CN114397127A (en) * | 2022-01-19 | 2022-04-26 | 重庆江增船舶重工有限公司 | Performance test method for high-temperature gas driven expander |
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| CN114397127A (en) * | 2022-01-19 | 2022-04-26 | 重庆江增船舶重工有限公司 | Performance test method for high-temperature gas driven expander |
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| CN107063693B (en) | 2019-01-11 |
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