CN205826326U - A kind of cooler for recycled exhaust gas heat exchange efficiency detecting system - Google Patents
A kind of cooler for recycled exhaust gas heat exchange efficiency detecting system Download PDFInfo
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- CN205826326U CN205826326U CN201620814653.8U CN201620814653U CN205826326U CN 205826326 U CN205826326 U CN 205826326U CN 201620814653 U CN201620814653 U CN 201620814653U CN 205826326 U CN205826326 U CN 205826326U
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- cooler
- exhaust gas
- recycled exhaust
- electromotor
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Abstract
The utility model discloses a kind of cooler for recycled exhaust gas heat exchange efficiency detecting system, including electromotor, dynamometer machine, gas handling system, oil supply system, cooling circulating water controller, fuel consumption meter, mass air flow sensor, temperature sensor, pressure transducer and control device, the controlled end dynamometer machine for connecting of described electromotor, electromotor is connected with oil supply system and gas handling system respectively, the tail gas outlet of electromotor connects cooler for recycled exhaust gas to be detected by exhaust main, and the controlled end of cooler for recycled exhaust gas to be detected connects cooling circulating water controller；Controlling the device controlled end respectively with dynamometer machine, gas handling system, oil supply system and cooling circulating water controller to be connected, the data acquisition end controlling device is connected with fuel consumption meter, mass air flow sensor, temperature sensor and pressure transducer respectively.This utility model feasibility is strong, simple to operate, with low cost, the temperature-controllable of waste gas during detection, the cooler for recycled exhaust gas heat exchange efficiency met under cooler for recycled exhaust gas actual service conditions can be tested out, for can with electromotor Proper Match and improve engine efficiency provide basis.
Description
Technical field
This utility model relates to engine exhaust emission recirculating technique field, particularly one and is used for detecting EGR cooling
The test system of device performance.
Background technology
In engine exhaust-gas recirculating system (egr system), EGR valve is for again joining a part of tail gas return cylinder
With burning, tail gas increases the specific heat ratio in cylinder containing substantial amounts of noble gas, it is possible to absorb the heat of more burning, and
To reduce oxygen concentration, thus reduce gas in-cylinder combustion temperature and burning velocity, reduce NO furtherxDischarge capacity, reach
Discharge standard.
Cooler for recycled exhaust gas imports, for reducing, the exhaust temperature that cylinder participates in burning, and the reduction of exhaust temperature can not only be dropped
Low maximum combustion temperature, and the coefficient of charge of gas in the jar can be increased, indirectly add compression ratio；Cool down EGR valve simultaneously
Can also preferably reduce discharge, reduce the oil consumption of electromotor.
The ratio of the heat that the heat exchange efficiency of cooler for recycled exhaust gas i.e. gas liberated heat absorbs with cooling water, is coupling difference
The important parameter of displacement engine, therefore when cooler for recycled exhaust gas produces and mates electromotor, it is possible to accurately detect that EGR cools down
The heat exchange efficiency of device, is the premise improving engine efficiency.Although the equipment of test cooler heat exchange efficiency is a lot of at present, but all
Much more expensive, and floor space is big.
Summary of the invention
This utility model technical issues that need to address are to provide a kind of cooler for recycled exhaust gas easy to operate, with low cost and change
Thermal efficiency detecting system, it is possible to simulation cooler for recycled exhaust gas real operating environments, accurately detects the heat exchange efficiency of cooler for recycled exhaust gas.
For solving above-mentioned technical problem, technical solution adopted in the utility model is as follows.
A kind of cooler for recycled exhaust gas heat exchange efficiency detecting system, including the electromotor for producing detection tail gas, for controlling
The dynamometer machine of engine behavior, the gas handling system of constant-humidity constant-temperature gas is provided for electromotor, provides fuel oil for electromotor
Oil supply system, for control to enter cooling water flow and temperature in cooler for recycled exhaust gas to be detected cooling circulating water controller and
Controlling device, the controlled end dynamometer machine for connecting of described electromotor, electromotor is connected with oil supply system and gas handling system respectively, starts
The tail gas outlet of machine connects the air inlet of cooler for recycled exhaust gas to be detected, the controlled end of cooler for recycled exhaust gas to be detected by exhaust main
Connect cooling circulating water controller；Described control device respectively with dynamometer machine, gas handling system, oil supply system and cooling circulating water control
The controlled end of device processed connects；
Pipeline between described electromotor and oil supply system is provided with fuel consumption meter, the pipe between electromotor and gas handling system
Road is provided with mass air flow sensor, the exhaust main between electromotor and cooler for recycled exhaust gas to be detected is provided with cooler entrance
Pressure transducer and cooler inlet temperature sensor, the outlet port of cooler for recycled exhaust gas to be detected is provided with cooler outlet temperature
Degree sensor；The data acquisition end of described control device senses with fuel consumption meter, mass air flow sensor, cooler inlet pressure respectively
The outfan of device, cooler inlet temperature sensor and cooler outlet temperature sensor connects.
Above-mentioned cooler for recycled exhaust gas heat exchange efficiency detecting system, the outfan of described control device connects display device.
Above-mentioned cooler for recycled exhaust gas heat exchange efficiency detecting system, the gas outlet of described cooler for recycled exhaust gas to be detected is provided with the aerofluxus back of the body
Pressure valve, cooler outlet temperature sensor is arranged between cooler for recycled exhaust gas to be detected and exhaust backpressure valve, controls the output of device
End connects the controlled end of exhaust backpressure valve.
Above-mentioned cooler for recycled exhaust gas heat exchange efficiency detecting system, described cooler for recycled exhaust gas to be detected and cooling circulating water controller it
Between inlet channel on be provided with intake pressure sensor and inflow temperature sensor, cooler for recycled exhaust gas to be detected and cooling circulation
It is provided with discharge pressure sensor and leaving water temperature sensors on outlet conduit between water controller, controls the input of device
Connect intake pressure sensor, inflow temperature sensor, discharge pressure sensor and the signal end of leaving water temperature sensors respectively.
Owing to have employed above technical scheme, technological progress acquired by this utility model is as follows.
This utility model feasibility is strong, simple to operate, with low cost, for detecting the heat exchange efficiency of cooler for recycled exhaust gas, and can be true
The real use environment simulating cooler for recycled exhaust gas, measures cooler for recycled exhaust gas accurately, intuitively at different coolant water temperatures, different cooling current
Heat exchange efficiency under amount, different exhaust flow, different exhaust temperature, for can be with electromotor Proper Match improve electromotor effect
Rate provides basis.
Accompanying drawing explanation
Fig. 1 is structure principle chart of the present utility model；
Fig. 2 is the fundamental diagram of this utility model control part.
Wherein: 1. electromotor, 2. dynamometer machine, 3. oil supply system, 4. fuel consumption meter, 5. gas handling system, 6. mass air flow sensor, 7.
Exhaust main, 8. cooler inlet pressure transducer, 9. cooler inlet temperature sensor, 10. cooler for recycled exhaust gas, 11. coolings
Recirculated water controller, 12. intake pressure sensors, 13. inflow temperature sensors, 14. discharge pressure sensors, 15. go out water temperature
Degree sensor, 16. cooler outlet temperature sensors, 17. exhaust backpressure valves, 18. control device, 19. display devices.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is further elaborated.
A kind of cooler for recycled exhaust gas heat exchange efficiency detecting system, including electromotor 1, dynamometer machine 2, oil supply system 3, gas handling system
5, exhaust main 7, cooling circulating water controller 11, exhaust backpressure valve 17, control device 18 and display device 19, electromotor 1
Controlled end dynamometer machine for connecting 2, electromotor 1 is connected with oil supply system and gas handling system respectively, the tail gas outlet of electromotor lead to
Crossing exhaust main 7 and connect the air inlet of cooler for recycled exhaust gas 10 to be detected, the controlled end of cooler for recycled exhaust gas to be detected connects cooling circulation
Water controller 11, the gas outlet of cooler for recycled exhaust gas to be detected is provided with exhaust backpressure valve 17；Control device respectively with dynamometer machine, enter
The controlled end of gas system, oil supply system, cooling circulating water controller and exhaust backpressure valve connects.
Electromotor 1 is used for producing detection tail gas, can be selected for middle small displacement engine in this utility model, it is to avoid discharge capacity is relatively
Input cooler for recycled exhaust gas inlet pressure to be detected time big excessive, cooler for recycled exhaust gas to be detected is caused damage.The tail gas of electromotor
Outlet connects the air inlet of cooler for recycled exhaust gas to be detected by exhaust main 7, is all delivered to treat by the tail gas that electromotor produces
Detection cooler for recycled exhaust gas.Wherein, exhaust main 7 is provided with cooler inlet pressure transducer 8 and cooler inlet temperature sensing
Device 9, for monitoring the tail gas force value in exhaust main and temperature value.
Dynamometer machine 2, for controlling the duty of electromotor, i.e. controls rotating speed and the moment of torsion of electromotor, controls further to send out
The capacity size of motivation and delivery temperature.
Oil supply system 3 connects with electromotor for providing fuel oil, oil supply system 3 to pass through oil pipe line for electromotor, oil pipe line
On be provided with fuel consumption meter 4, for test engine consume average fuel consumption, and be transferred to control device.
Gas handling system 5 for providing the air of constant-humidity constant-temperature for electromotor, and gas handling system 5 is started by air pipe line connection
The air inlet pipe of machine, air pipe line is provided with mass air flow sensor 6, for measuring the air mass flow that electromotor consumes, and is transferred to
Control device.
The controlled end of cooler for recycled exhaust gas to be detected connects cooling circulating water controller 11, and cooling circulating water controller 11 is used for
Control to enter flow and the temperature cooling down water in cooler for recycled exhaust gas to be detected, entrance EGR to be detected cooling can be set according to demand
The stationary flow amount of device and steady temperature.Set on inlet channel between cooler for recycled exhaust gas to be detected and cooling circulating water controller
It is equipped with intake pressure sensor 12 and inflow temperature sensor 13, is respectively used to detection and enters the water inlet of cooler for recycled exhaust gas cooling water
Temperature and intake pressure；It is provided with water outlet pressure on outlet conduit between cooler for recycled exhaust gas to be detected and cooling circulating water controller
Force transducer 14 and leaving water temperature sensors 15, be respectively used to detection and flow out leaving water temperature and the water outlet of cooler for recycled exhaust gas cooling water
Pressure.
The gas outlet of cooler for recycled exhaust gas to be detected is provided with exhaust backpressure valve 17, and exhaust backpressure valve is used for controlling exhaust main
Interior tail gas pressure.It is provided with cooler outlet temperature sensor 16 between cooler for recycled exhaust gas to be detected and exhaust backpressure valve 17, uses
In the temperature value detecting cooler for recycled exhaust gas to be detected outlet tail gas.
Control device data acquisition end respectively with fuel consumption meter, mass air flow sensor, cooler inlet pressure transducer, water inlet
Pressure transducer 12, inflow temperature sensor 13, discharge pressure sensor 14, leaving water temperature sensors 15 and cooler outlet temperature
The outfan of degree sensor 16 connects, and the outfan controlling device follows with dynamometer machine, gas handling system, oil supply system, cooling respectively
The controlled end of ring water controller and exhaust backpressure valve connects；The outfan controlling device 18 is also connected with display device 19, is used for
Testing result is intuitively shown.
This utility model is for detecting the principle of cooler for recycled exhaust gas to be detected as depicted in figs. 1 and 2, and detailed process is as follows.
First, adjust engine speed and moment of torsion, electromotor is adjusted to medium and small rotating speed underload point, then pass through, cold
But recirculated water controller controls to enter cooling water temperature and the pressure of cooler for recycled exhaust gas to be detected, turns down exhaust backpressure valve until treating
The pressure of the exhaust backpressure valve before detection cooler for recycled exhaust gas arrives desired value, if being difficult to reach goal pressure, then and can be by increasing
Engine speed or suitably increase moment of torsion improve capacity thus increase admission pressure and the air inlet temperature of cooler for recycled exhaust gas to be detected
Degree.After electromotor works well, the fuel oil of oil supply system output enters back into electromotor, this aperture of fuel consumption meter record through fuel consumption meter
The fuel consumption of lower electromotor；Gas handling system is for exporting the air of constant-humidity constant-temperature to engine air inlet tube, mass air flow sensor
Record the specific air consumption of electromotor under this aperture；It is cold that the tail gas that electromotor is discharged all sends into EGR to be detected through exhaust main
But the air inlet of device.
In test process, the cooler inlet pressure transducer on exhaust main monitors the force value of exhaust main i.e. in real time
The exhaust gas pressure of cooler for recycled exhaust gas to be detected, and pass in real time control device, control device according to preset value by adjusting aerofluxus
Counterbalance valve makes the gas pressure in exhaust main arrive desired value.
After temperature, pressure all reach desired value, control device and read fuel consumption and the mass air flow sensor of fuel consumption meter
Value, both show value units are kg/h；According to law of conservation of energy, participate in the air capacity of engine combustion and fuel oil
Weight summation is the weight of tail gas, the most just can draw the flow of motor exhaust, and now the exhaust flow of electromotor is the most logical
Cross the exhaust gas flow of cooler for recycled exhaust gas to be detected.Control device to be incorporated into water pressure sensor 12, inflow temperature sensor 13, go out
Water pressure sensor 14 and leaving water temperature sensors 15 value calculate the heat that cooling water is taken away；Further according to cooler outlet temperature
The numerical value of degree sensor transmissions, can calculate the tail gas heat quantity through cooler for recycled exhaust gas to be detected and lose.Finally control device
The heat exchange that the heat that the heat taken away by calculating cooling water and tail gas are lost is carried out than obtaining cooler for recycled exhaust gas to be detected is imitated
Rate, is then intuitively shown cooler for recycled exhaust gas heat exchange efficiency to be detected by display device.
Control device, by controlling dynamometer machine, gas handling system, oil supply system, cooling circulating water controller, controls to be checked
Survey cooler for recycled exhaust gas heat exchange effect under different coolant water temperatures, different cooling water flow, different exhaust flow, different exhaust temperature
Rate.
This utility model simple in construction, with low cost, it is not necessary to special flow test facility, wherein electromotor, fuel feeding system
System, gas handling system, dynamometer machine, display device are the indispensable equipment of engine industry and electromotor key components and parts enterprise, because of
This this utility model in an assembling process, use by expensive equipment.This utility model uses motor exhaust to test out
Heat exchange efficiency is more fitted the actual service condition of cooler for recycled exhaust gas, for can be with electromotor Proper Match improve engine efficiency
Basis is provided.
Claims (4)
1. a cooler for recycled exhaust gas heat exchange efficiency detecting system, it is characterised in that: include the electromotor for producing detection tail gas
(1), for control engine behavior dynamometer machine (2), for electromotor provide constant-humidity constant-temperature gas gas handling system (5),
The oil supply system (3) of fuel oil is provided, for controlling to enter cooling water flow and temperature in cooler for recycled exhaust gas to be detected for electromotor
Cooling circulating water controller (11) and control device (18), the controlled end dynamometer machine for connecting (2) of described electromotor (1), start
Machine (1) is connected with oil supply system and gas handling system respectively, and the tail gas outlet of electromotor connects to be detected by exhaust main (7)
The air inlet of cooler for recycled exhaust gas (10), the controlled end of cooler for recycled exhaust gas to be detected connects cooling circulating water controller (11)；Described control
Device processed controlled end with dynamometer machine, gas handling system, oil supply system and cooling circulating water controller respectively is connected；
Pipeline between described electromotor (1) and oil supply system (3) is provided with fuel consumption meter (4), electromotor (1) and gas handling system
(5) being provided with mass air flow sensor (6) in the pipeline between, the aerofluxus between electromotor (1) and cooler for recycled exhaust gas to be detected (10) is total
It is provided with cooler inlet pressure transducer (8) and cooler inlet temperature sensor (9), cooler for recycled exhaust gas to be detected on pipe (7)
Outlet port be provided with cooler outlet temperature sensor (16)；The data acquisition end of described control device respectively with oil consumption
Instrument, mass air flow sensor, cooler inlet pressure transducer, cooler inlet temperature sensor and cooler outlet temperature sensing
The outfan of device connects.
A kind of cooler for recycled exhaust gas heat exchange efficiency detecting system the most according to claim 1, it is characterised in that: described control fills
The outfan connection putting (18) has display device (19).
A kind of cooler for recycled exhaust gas heat exchange efficiency detecting system the most according to claim 1, it is characterised in that: described to be detected
The gas outlet of cooler for recycled exhaust gas is provided with exhaust backpressure valve (17), and cooler outlet temperature sensor (16) is arranged on EGR to be detected
Between cooler and exhaust backpressure valve (17), the outfan controlling device connects the controlled end of exhaust backpressure valve.
Cooler for recycled exhaust gas heat exchange efficiency detecting system the most according to claim 1, it is characterised in that: described EGR to be detected is cold
But intake pressure sensor (12) and inflow temperature sensing it are provided with on the inlet channel between device and cooling circulating water controller
Device (13), the outlet conduit between cooler for recycled exhaust gas to be detected and cooling circulating water controller is provided with discharge pressure sensor
(14) input and leaving water temperature sensors (15), controlling device connects intake pressure sensor (12), inflow temperature respectively
Sensor (13), discharge pressure sensor (14) and the signal end of leaving water temperature sensors (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620814653.8U CN205826326U (en) | 2016-07-29 | 2016-07-29 | A kind of cooler for recycled exhaust gas heat exchange efficiency detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620814653.8U CN205826326U (en) | 2016-07-29 | 2016-07-29 | A kind of cooler for recycled exhaust gas heat exchange efficiency detecting system |
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| Publication Number | Publication Date |
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| CN205826326U true CN205826326U (en) | 2016-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620814653.8U Active CN205826326U (en) | 2016-07-29 | 2016-07-29 | A kind of cooler for recycled exhaust gas heat exchange efficiency detecting system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017968A (en) * | 2016-07-29 | 2016-10-12 | 无锡隆盛科技股份有限公司 | EGR cooler heat exchange efficiency detection system |
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2016
- 2016-07-29 CN CN201620814653.8U patent/CN205826326U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017968A (en) * | 2016-07-29 | 2016-10-12 | 无锡隆盛科技股份有限公司 | EGR cooler heat exchange efficiency detection system |
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