CN106769071A - A kind of performance detection testing bench of Stirling engine - Google Patents
A kind of performance detection testing bench of Stirling engine Download PDFInfo
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- CN106769071A CN106769071A CN201710083438.4A CN201710083438A CN106769071A CN 106769071 A CN106769071 A CN 106769071A CN 201710083438 A CN201710083438 A CN 201710083438A CN 106769071 A CN106769071 A CN 106769071A
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- stirling
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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
- G01M15/04—Testing internal-combustion engines
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Abstract
The invention discloses a kind of performance detection testing bench of Stirling engine,Thermal source is done using electrically-controlled heating oven,Heat energy is absorbed instead of from the external world,So as to weather will not be subject to,The influence of the factors such as time,It is easy to be adjusted power simultaneously,Use independent air supply system,Pressurizeed in working chamber by gas cylinder after engine enters working condition,Improve operating efficiency,It is vented to low pressure gas cylinder when engine is shut down,Reduce inner pressure of air cylinder,Smoothly started when both can guarantee that start next time,The service life of engine sealing can effectively be extended again,Asynchronous generator is connected using frequency converter,Frequency converter can be with the starting current of controlled motor,Adjust the power of motor,Reduce the impact to power network,The rotating speed of controlled motor,Realize the smooth acceleration and deceleration of motor,Make whole system safer,Testing stand is by the way of bus communication,Subsystems are separate,Connect each other again,It is easy to extension,Maintain easily.
Description
Technical field
The present invention relates to engine performance measuring technical field, the performance detection of specially a kind of Stirling engine is tested
Platform.
Background technology
Stirling engine is English physicist sieve Bart's Stirling（Robert Stirling）Invented in 1816
, so being named as " Stirling engine "（Stirling Engine）, working media in Stirling engine cylinder（Hydrogen
Or helium）Power, therefore the thermomotor that is otherwise known as are exported through supercooling, the circulation compressed, absorb heat, be expanded to a cycle,
As global energy is increasingly severe with the situation of environmental protection, there is the extensive adaptability and excellent ring of various energy resources due to thermomotor
Border characteristic is increasingly taken seriously, so power, solar power, space station power, heat pump air conditioner power, automobile-used under water
The aspects such as hybrid propulsion power have obtained extensive research and have paid attention to, and have obtained some successful applications, and this is special for dish-style
Woods solar heat power generation system it is main by condenser, sun tracker, receiver, Stirling engine, generator, controller and
Gas supply equipment is constituted, and current peak conversion efficiency is rising with excellent performance up to more than 30%, normally
To on solar energy reflection to receiver, be that Stirling starts by condenser by the sun tracker real-time tracing sun during work
Machine provides power, drives electrical power generators, it is necessary to detect the performance of engine in the production process of Stirling engine, does
A series of functional test, can just be installed on sun tracker after the assay was approved, form the electricity generation system of complete set, but
Current Detecting data is in detection, it is necessary to provide heat by outside heating system to ensure the normal work of Stirling engine
Make, heat can be the solar energy or other high temperature heat sources after focusing on, directly using solar energy can by weather, time etc. because
The influence of element, while power adjusting is limited in one's ability, can constantly repeat cooling, compression, heat absorption, expansion in engine working process
Stirling cycle, needs to fill the good Working medium gas of thermal performance in cavity, if cavity internal pressure is excessive, can cause engine
Difficulty in starting, increases equipment processing and manufacturing cost, and pressure is too small, and heat utilization ratio is not high, and engine operating efficiency is low, system peace
Full property is relatively low, while being also not easy to safeguard.
The content of the invention
The technical problem to be solved in the present invention is to overcome existing defect, there is provided a kind of performance detection of Stirling engine
Testing stand, thermal source is done using electrically-controlled heating oven, heat is absorbed instead of the sun from after focusing, so as to will not be subject to weather, time
Etc. the influence of factor, while be easy to be adjusted power, using independent air supply system, after engine enters working condition
Pressurizeed in working chamber by gas cylinder, improve operating efficiency, be vented to low pressure gas cylinder when engine is shut down, reduce cylinder
Interior pressure, smoothly started when both can guarantee that start next time, and the service life of engine sealing can be effectively extended again, used frequency conversion
Device connects asynchronous generator, and frequency converter with the starting current of controlled motor, can adjust the power of motor, and reduction is rushed to power network
Hit, the rotating speed of controlled motor, realize the smooth acceleration and deceleration of motor, make whole system safer, testing stand uses bus communication
Mode, subsystems are separate, connect each other again, it is easy to extend, and maintain easily, in can effectively solving background technology
Problem.
To achieve the above object, the present invention provides following technical scheme：A kind of performance detection experiment of Stirling engine
Platform, including Stirling electricity generation system, gas supply system, heating system, electric power system, CAN communication link and control computer, its
It is characterised by：The Stirling electricity generation system is bi-directionally connected with gas supply system, and the Stirling electricity generation system is with power supply
Unite two-way electrical connection, the Stirling electricity generation system is electrically connected with CAN communication link bidirectional, the CAN communication link is special with this
The two-way electrical connection of woods electricity generation system, the CAN communication link is two-way with electric power system to be electrically connected, the CAN communication link with supply
The two-way electrical connection of hot systems, computer is two-way electrically connects with control for the CAN communication link, and the output end of the electric power system is electrically connected
Connect the input of heating system.
Used as a preferred technical solution of the present invention, the gas supply system includes gas cylinder and low pressure gas cylinder,
The gas cylinder and low pressure gas cylinder are connected to Stirling engine by valve and gas piping.
As a preferred technical solution of the present invention, the Stirling electricity generation system include asynchronous machine, intelligent electric meter,
Engine electric-controlled case, Stirling engine and first sensor group, the output end electrical connection engine of the first sensor group
The input of electric cabinet, the output end of the engine electric-controlled case electrically connects the input of Stirling engine, the Stirling
The output end of engine electrically connects the input of first sensor group, and the Stirling engine is two-way with asynchronous machine to be electrically connected
Connect, the output end of the asynchronous machine electrically connects the input of intelligent electric meter.
Used as a preferred technical solution of the present invention, the heating system includes that second sensor group, heating furnace are automatically controlled
Case and electrically-controlled heating oven, the output end of the second sensor group electrically connect the input of heating furnace electric cabinet, the heating furnace
The output end of electric cabinet electrically connects the input of electrically-controlled heating oven, the output end electrical connection second sensor of the electrically-controlled heating oven
The input of group.
As a preferred technical solution of the present invention, the electric power system include 380V AC power supplies, electrical switchgear and
Frequency converter, the 380V AC power supplies is two-way with electrical switchgear to be electrically connected, and the electrical switchgear is two-way with frequency converter to be electrically connected
Connect, the electric power system is electrically connected by the way that frequency converter is two-way with the asynchronous generator of Stirling electricity generation system, the electric switch
The output end of cabinet is electrically connected the input of Stirling electricity generation system and heating system.
Used as a preferred technical solution of the present invention, the CAN communication link includes CAN, pci interface CAN cards,
The CAN respectively with the engine electric-controlled case for connecing Stirling electricity generation system and intelligent electric meter is two-way electrically connects, the CAN is total
Line is two-way with the heating furnace electric cabinet of heating system to be electrically connected, and the CAN is also electrically connected with the frequency converter two-wire of electric power system
Connect, the CAN is two-way with pci interface CAN cards respectively to be electrically connected, the pci interface CAN cards with control the two-way electricity of computer
Connection.
Compared with prior art, the beneficial effects of the invention are as follows：The performance detection testing bench of this Stirling engine, uses
Electrically-controlled heating oven does thermal source, and heat is absorbed instead of the sun from after focusing, so as to the shadow of the factors such as weather, time will not be subject to
Ring, while being easy to be adjusted power, using independent air supply system, high pressure gas are passed through after engine enters working condition
Bottle pressurizes in working chamber, improves operating efficiency, is vented to low pressure gas cylinder when engine is shut down, and reduces inner pressure of air cylinder, both
Smoothly start when can guarantee that start next time, the service life of engine sealing can be effectively extended again, connect different using frequency converter
Step generator, frequency converter with the starting current of controlled motor, can adjust the power of motor, reduce the impact to power network, control electricity
The rotating speed of machine, realizes the smooth acceleration and deceleration of motor, makes whole system safer, testing stand by the way of bus communication, respectively
Individual subsystem is separate, connects each other again, it is easy to extend, and maintains easily.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1 is referred to, the present invention provides a kind of technical scheme：A kind of performance detection testing bench of Stirling engine, bag
Include Stirling electricity generation system, gas supply system, heating system, electric power system, CAN communication link and control computer, Stirling
Electricity generation system is bi-directionally connected with gas supply system, and Stirling electricity generation system is two-way with electric power system to be electrically connected, and Stirling generates electricity
System is electrically connected with CAN communication link bidirectional, and CAN communication link is two-way with Stirling electricity generation system to be electrically connected, CAN communication link
Two-way with electric power system to electrically connect, CAN communication link is two-way with heating system to be electrically connected, and CAN communication link is double with control computer
To electrical connection, the output end of electric power system electrically connects the input of heating system, and gas supply system includes gas cylinder and low
Air bottle, gas cylinder and low pressure gas cylinder are connected to Stirling engine by valve and gas piping, can be in gas cylinder
Hydrogen or helium, it is ensured that the gas circulation supply in engine cylinder body, Stirling electricity generation system includes asynchronous machine, intelligence electricity
Electromechanics is started in table, engine electric-controlled case, Stirling engine and first sensor group, the output end electrical connection of first sensor group
Control the input of case, the output end of engine electric-controlled case electrically connects the input of Stirling engine, Stirling engine it is defeated
Go out end electrical connection first sensor group input, Stirling engine is two-way with asynchronous machine to be electrically connected, asynchronous machine it is defeated
Go out the input of end electrical connection intelligent electric meter, first sensor group includes the sensors such as temperature, pressure, rotating speed, vibration, by electricity
Cable is connected to the data acquisition unit in engine electric-controlled case, the running status for monitoring engine, intelligent electric meter collection
The electrical parameters such as measurement voltage, electric current, power, engine electric-controlled case, and the control unit in electric cabinet are connected to by CAN
Communication, heating system includes second sensor group, heating furnace electric cabinet and electrically-controlled heating oven, the output end electricity of second sensor group
The input of heating furnace electric cabinet is connected, the output end of heating furnace electric cabinet electrically connects the input of electrically-controlled heating oven, automatically controlled to add
The output end of hot stove electrically connects the input of second sensor group, and second sensor group includes 4 K-type thermocouples, is distributed in and adds
The surrounding of hot furnace cavity, the data acquisition and procession unit in electric cabinet is connected to by cable, for monitoring heating furnace
Working condition, heating furnace electric cabinet has CAN communication interface, and by CAN and control dataphone, electric power system includes
380V AC power supplies, electrical switchgear and frequency converter, 380V AC power supplies is two-way with electrical switchgear to be electrically connected, electrical switchgear with
The two-way electrical connection of frequency converter, electric power system is electrically connected by the way that frequency converter is two-way with the asynchronous generator of Stirling electricity generation system, electricity
The output end of device switch cubicle is electrically connected the input of Stirling electricity generation system and heating system, and CAN communication link includes CAN
Bus, pci interface CAN cards, CAN respectively with the engine electric-controlled case and the two-way electricity of intelligent electric meter for connecing Stirling electricity generation system
Connection, CAN is two-way with the heating furnace electric cabinet of heating system to be electrically connected, and frequency converter of the CAN also with electric power system is double
Line is electrically connected, and CAN is two-way with pci interface CAN cards respectively to be electrically connected, pci interface CAN cards with control that computer is two-way is electrically connected
Connect, the said equipment collectively constitutes a controller LAN, and data interaction is carried out by CAN, by equipment parameters
Control computer is passed to, the instruction for receiving control computer is acted accordingly.
When in use：For a Stirling engine for brand-new assembling, first it is fixed on the support on testing stand,
Gas supply system, electric power system, heating system and CAN are connected, the monitoring software on control computer is opened, first carried out
Cold conditions is tested（Carried out in the case where not heating）, check that temperature, pressure, rotating speed, vibration in first sensor group etc. are sensed
Whether device is normal, checks whether gas piping and valve switch on engine are normal, and cold conditions opens automatically controlled adding after being completed
Hot stove, to the hot head heating of Stirling engine, engine controller reaches setting value by first sensor group detection temperature
When send a command to frequency converter, open generator, engine rotation is driven, while open gas cylinder adding to engine cavity
Pressure, with gradually rising for temperature, engine speed is continuously increased, and starts to drive electrical power generators during more than critical speed.
Engine controller can constantly gather the various sensing datas of measurement in the course of work, and it is obtained by CAN
The working condition of its subsystem, and corresponding control action is made, adjustment engine reaches optimum Working.On control computer
Debugging software the running parameter of electricity generation system and subsystems is collected by CAN, be saved in database.Positive reason
Condition does not need manual intervention, and control system is automatically performed all of engine performance detection work, can be sent out by operator if necessary
Control command is sent, changes the working condition of equipment
The present invention do thermal source using electrically-controlled heating oven, instead of from after focusing the sun absorb heat so that will not by weather, when
Between etc. factor influence, while being easy to be adjusted power, using independent air supply system, working condition is entered in engine
Pressurizeed in working chamber by gas cylinder afterwards, improve operating efficiency, be vented to low pressure gas cylinder when engine is shut down, reduce gas
In-cylinder pressure, smoothly started when both can guarantee that start next time, and the service life of engine sealing can be effectively extended again, used change
Frequency device connects asynchronous generator, and frequency converter with the starting current of controlled motor, can adjust the power of motor, and reduction is rushed to power network
Hit, the rotating speed of controlled motor, realize the smooth acceleration and deceleration of motor, make whole system safer, testing stand uses bus communication
Mode, subsystems are separate, connect each other again, it is easy to extend, and maintain easily.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding can carry out various changes, modification, replacement to these embodiments without departing from the principles and spirit of the present invention
And modification, the scope of the present invention be defined by the appended.
Claims (6)
1. a kind of performance detection testing bench of Stirling engine, including Stirling electricity generation system, gas supply system, heat supply system
System, electric power system, CAN communication link and control computer, it is characterised in that：The Stirling electricity generation system and gas supply system
It is bi-directionally connected, the Stirling electricity generation system is two-way with electric power system to be electrically connected, the Stirling electricity generation system and CAN communication chain
The two-way electrical connection in road, the CAN communication link is two-way with Stirling electricity generation system to be electrically connected, the CAN communication link with power supply
System bidirectional electrically connect, the CAN communication link is two-way with heating system to be electrically connected, the CAN communication link with control computer
Two-way electrical connection, the output end of the electric power system electrically connects the input of heating system.
2. the performance detection testing bench of a kind of Stirling engine according to claim 1, it is characterised in that：The gas
Supply system includes gas cylinder and low pressure gas cylinder, and the gas cylinder and low pressure gas cylinder are connected by valve and gas piping
To Stirling engine.
3. the performance detection testing bench of a kind of Stirling engine according to claim 1, it is characterised in that：Described this spy
Woods electricity generation system includes asynchronous machine, intelligent electric meter, engine electric-controlled case, Stirling engine and first sensor group, described
The output end of first sensor group electrically connects the input of engine electric-controlled case, the output end electrical connection of the engine electric-controlled case
The input of Stirling engine, the output end of the Stirling engine electrically connects the input of first sensor group, described
Stirling engine is two-way with asynchronous machine to be electrically connected, and the output end of the asynchronous machine electrically connects the input of intelligent electric meter.
4. the performance detection testing bench of a kind of Stirling engine according to claim 1, it is characterised in that：The heat supply
System includes second sensor group, heating furnace electric cabinet and electrically-controlled heating oven, and the output end of the second sensor group is electrically connected
The input of heating furnace electric cabinet, the output end of the heating furnace electric cabinet electrically connects the input of electrically-controlled heating oven, the electricity
The output end for controlling heating furnace electrically connects the input of second sensor group.
5. the performance detection testing bench of a kind of Stirling engine according to claim 1, it is characterised in that：The power supply
System includes 380V AC power supplies, electrical switchgear and frequency converter, and the 380V AC power supplies is two-way with electrical switchgear to be electrically connected,
The electrical switchgear is two-way with frequency converter to be electrically connected, and the electric power system is asynchronous with Stirling electricity generation system by frequency converter
The two-way electrical connection of generator, the output end of the electrical switchgear is electrically connected the defeated of Stirling electricity generation system and heating system
Enter end.
6. the performance detection testing bench of a kind of Stirling engine according to claim 1, it is characterised in that：The CAN
Communication link includes CAN, pci interface CAN cards, and the CAN is engine electric-controlled with Stirling electricity generation system respectively
Case and the two-way electrical connection of intelligent electric meter, the CAN is two-way with the heating furnace electric cabinet of heating system to be electrically connected, the CAN
Bus is also electrically connected with the frequency converter two-wire of electric power system, and the CAN is two-way with pci interface CAN cards respectively to be electrically connected, institute
Computer is two-way electrically connects with control to state pci interface CAN cards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710083438.4A CN106769071A (en) | 2017-02-16 | 2017-02-16 | A kind of performance detection testing bench of Stirling engine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710083438.4A CN106769071A (en) | 2017-02-16 | 2017-02-16 | A kind of performance detection testing bench of Stirling engine |
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| CN106769071A true CN106769071A (en) | 2017-05-31 |
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| CN201710083438.4A Pending CN106769071A (en) | 2017-02-16 | 2017-02-16 | A kind of performance detection testing bench of Stirling engine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111397906A (en) * | 2020-03-19 | 2020-07-10 | 上海齐耀动力技术有限公司 | Comprehensive test bed and test method for power system of hot gas engine |
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Effective date of abandoning: 20231110 |