CN203756371U - Gas inlet channel humidifying device for supercharged diesel engine - Google Patents
Gas inlet channel humidifying device for supercharged diesel engine Download PDFInfo
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- CN203756371U CN203756371U CN201420131187.4U CN201420131187U CN203756371U CN 203756371 U CN203756371 U CN 203756371U CN 201420131187 U CN201420131187 U CN 201420131187U CN 203756371 U CN203756371 U CN 203756371U
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- steam generator
- turbosupercharger
- diesel engine
- water
- valve
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Abstract
The utility model aims at providing a gas inlet channel humidifying device for a supercharged diesel engine. The gas inlet channel humidifying device comprises a control water tank, a steam generator, a first turbocharger and a second turbocharger. A heating pipeline is arranged in the steam generator, waste gas passes through a first turbine to enter the heating pipeline of the steam generator, the heating pipeline is respectively connected with a second turbine and the atmosphere through a three-way solenoid valve, the second turbine is connected with the atmosphere, the control water tank is connected with the steam generator and injects water into the steam generator, a Venturi tube is arranged on a gas inlet pipe between a first gas compressor and a diesel engine cylinder, the water in the steam generator is heated through the waste gas in the heating pipeline to generate the steam, and the steam passes through a second gas compressor to enter the Venturi tube and is further sprayed into the gas inlet pipe. By means of the gas inlet channel humidifying device for the supercharged diesel engine, mixing of the supercharged gas of the diesel engine and the supercharged steam in the gas inlet channel is achieved, so that emulsifying combustion is completed, the utilization rate of resources is improved, and meanwhile NOX emission of the diesel engine further can be greatly reduced.
Description
Technical field
The utility model relates to a kind of diesel engine additional device, specifically diesel engine intake additional device.
Background technique
Diesel engine technology for mixing water originates from earlier 1900s at first, adopts gas in-cylinder water injection to reach cooling object.Along with a large amount of research of people's decades, summed up the mode of multiple emulsifying combustion to improve burning, reduce NO
x, mainly comprise three kinds of modes: intake duct supplies water, emulsifying diesel oil blended with water method and directly spraying water to firing chamber, and three kinds of modes respectively have pluses and minuses.Wherein, intake duct supplies water mainly by atomized water or water vapor are sprayed into from intake duct, along with air enters firing chamber, participates in burning, utilizes humidifying air thermal capacity to increase severely, water down oxygen concentration effect and water gas effect etc., thereby play reduction combustion temperature, so that significantly reduce NO
xdischarge.Diesel exhaust gas temperature is roughly at 400 ℃-450 ℃, and high temperature discharge directly enters atmosphere through after reprocessing conventionally, has caused the significant wastage of energy.Along with the reinforcement of energy-saving and emission-reduction relevant policies, how farthest to improve energy utilization rate, reducing exhaust emission has been very important problem.
At present, in existing intake duct way of supplying water, mostly adopt humidifier heating water to become water vapor, not yet occur realizing based on waste gas heat utilization the Patents of intake duct water spray steam and water vapor supercharging, be necessary this further exploratory development.
Summary of the invention
The purpose of this utility model is to provide the recycling by exhaust energy, realizes a kind of supercharged diesel engine intake duct of object humidifying device of air inlet path for diesel engine water spray steam.
The purpose of this utility model is achieved in that
A kind of supercharged diesel engine intake duct of the utility model humidifying device, it is characterized in that: comprise control water tank, steam generator, the first turbosupercharger, the second turbosupercharger, heating pipe is installed in steam generator, the waste gas that cylinder of diesel engine is discharged enters the heating pipe of steam generator after the turbine of the first turbosupercharger, heating pipe is connected with turbine and the atmosphere of the second turbosupercharger respectively by three-way magnetic valve, the turbine of the second turbosupercharger is communicated with atmosphere, control that water tank connects steam generator and to water filling in steam generator, in the gas compressor of the first turbosupercharger and the suction tude between cylinder of diesel engine, Venturi tube is installed, the steam that water in steam generator generates after the waste gas heating in heating pipe, after the gas compressor of the second turbosupercharger, enter Venturi tube, and then spray into suction tude.
The utility model can also comprise:
1, steam buffer device, flow control valve, one way stop peturn valve are installed between the gas compressor of the second turbosupercharger and Venturi tube, steam buffer device lower end arranges drain valve; The first control solenoid valve is installed between the gas compressor of steam generator and the second turbosupercharger.
2, on the pipeline that control water tank is connected with steam generator, be installed into water management solenoid valve, the lower end of steam generator arranges draining and controls solenoid valve, control installation height liquid level alarm in water tank, level sensor is installed in steam generator, level sensor detects the water liquid level in steam generator, when water liquid level surpasses the highest setting liquid level, two position alarm produces alarm signal, draining is controlled solenoid valve and is opened, when water liquid level is during lower than minimum setting liquid level, two position alarm produces alarm signal, and water inlet is controlled solenoid valve and opened.
3, between steam generator and the gas compressor of the second turbosupercharger, the first pressure transducer is installed, the second pressure transducer is installed between flow control valve and one way stop peturn valve, the 3rd pressure transducer is installed between the gas compressor of the first turbosupercharger and Venturi tube, steam generator bottom arranges hot water outlet, and hot water exit installs hand control valve and temperature transducer.
Advantage of the present utility model is: a waste gas passes into steam generator heating water makes it to produce water vapor, also can meet the demand of hot water supply simultaneously, and this is the secondary utilization of waste gas (being once utilized as large pressurized machine); Secondary waste gas passes into little turbine and drives little gas compressor to realize supercharging to water vapor, and these three times of being waste gas utilize; Exhaust energy through three recyclings reduces greatly, has effectively improved the utilization ratio of the energy.Water vapor completes with pressurized air and mixes, and realizes the object that air inlet path for diesel engine supplies water, and then improves burning, reduces NO
xdischarge, can meet under the condition of air inlet water vapor by bleed valve meanwhile, is applied in other purposes, as indoor humidification, dedusting etc.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is control water tank of the present utility model, steam generator partial enlarged drawing.
Embodiment
Below in conjunction with accompanying drawing, for example the utility model is described in more detail:
In conjunction with Fig. 1～2, a kind of supercharged diesel engine intake duct of the utility model humidifying device comprises big or small exhaust-gas turbocharger, from a waste gas of large turbine 10 outlets, be connected with steam generator 4 bottom inlets, steam generator 4 controls solenoid valve 22,23 by drainage and level sensor 3 is connected with control water tank 1, secondary waste gas outlet 20 is connected with little turbine 18 entrances, and little turbine 18 outlets communicate with atmosphere; Little gas compressor 7 entrances are connected with steam outlet 5, are provided with pressure transducer 25 and solenoid valve 6 therebetween, and little gas compressor 7 outlets are connected with steam buffer tank 8 entrances; Steam buffer tank 8 outlet is connected with flow control valve 12 entrances, is provided with bleed valve 11 therebetween, flow control valve 12 outlets with unidirectional time only valve 15 entrances be connected, be provided with pressure transducer 26 therebetween.Stop valve 15 outlets for unidirectional time and be communicated with Venturi tube one end entrance, Venturi tube 16 another entrances are connected with large gas compressor 16 outlets, and Venturi tube 16 outlets are connected with air inlet pipe of diesel engine.
Secondary waste gas outlet 20 is connected with three-way magnetic valve 19, solenoid valve 19 one end outlets communicate with atmosphere, one end outlet is connected with little turbine 18 entrances, to realize respectively secondary waste gas, directly enters atmosphere and passes into little turbine 18, prevents solenoid valve 6 little gas compressor 7 idle running while not opening.
Level sensor 3 has been installed in steam generator 4, has been conducive to the water in maker to carry out Real-Time Monitoring, and fed back in control water tank 1, hi-lo signal alarm device 2 signals send by controlling water tank 3.
The water vapor of little gas compressor 7 outlets enters in steam buffer tank 8, and tank base is provided with drain valve 9, in voltage stabilizing storage vapour, can discharge in time condensed water.
The little turbosupercharger that utilization consists of little turbine 18 and little gas compressor 7 has realized the utilization again to secondary waste gas, reaches the object of water vapor supercharging.
Pressure transducer 26 is arranged on flow control valve 12 outlets, and pressure transducer 27 is arranged on large blower outlet, so that water vapor pressure and suction pressure are carried out to Real-Time Monitoring.
Heating pipe 22 is set to red copper helical heating pipe, is conducive to strengthen heat transfer effect.
The utility model mainly comprises big and small turbochargers, steam generator 4, controls water tank 1, flow control valve 12, steam buffer tank 8, Venturi tube 16.The waste gas of large turbine 10 outlets is referred to as waste gas one time, and one time waste gas enters from steam generator 4 bottom inlets, by 24 pairs of water heating of the spiral heating pipeline in steam generator 4, makes it to form water vapor, is discharged afterwards by secondary waste gas outlet 20; The waste gas that completes heating is referred to as secondary waste gas, secondary waste gas is connected with little turbine 18 with atmosphere respectively by three-way magnetic valve 19, when solenoid valve 6 cuts out, secondary waste gas directly enters atmosphere, when solenoid valve 6 is opened, secondary waste gas passes into little turbine 18, water vapor enters little gas compressor 7 by steam outlet 5 and realizes supercharging, be provided with pressure transducer 25 therebetween, the water vapor of little gas compressor 7 outlets passes into steam buffer tank 8, steam buffer tank 8 is provided with drain valve 9, and in order to timely discharge condensed water, this is once utilized as large turbosupercharger for the secondary utilization of waste gas; Pressure transducer 26,27 is arranged on respectively after flow control valve 12 and 17 outlets of large gas compressor, the water vapor exporting from steam buffer tank 8 is via flow control valve 12 and stop valve 15 unidirectional time, by Venturi tube 16 and pressurized air, complete injection and mix, enter cylinder and realize emulsifying combustion.By 26,27 pairs of water vapors of pressure transducer and pressurized air, carry out Real-Time Monitoring, when water vapor pressure is higher than pressurized air, bleed valve 11 is opened, and until water vapor pressure, closes during lower than charge-air pressure, guarantees the normal mixing of the two.
Wherein, control the signal that feeds back to display screen that water tank gathers level sensor, the water level situation in judgement steam generator 4, controls the keying of solenoid valve 22,23, and sends corresponding alarm signal.Heating pipe in steam generator 4 is set to red copper screw pipe road, and high-temperature tail gas flows from below to up, compared with straight tube and the more convenient layout of U-shaped pipe, has strengthened heat transfer effect.By pressure transducer 25, realize the pressure monitoring in the slow maker 4 of steam.When overpressure, can exit by bleed valve 11, this part water vapor can be for indoor dedusting, humidification etc.Between flow control valve 12 and Venturi tube 16, arrange one and stop valve 15 unidirectional time, in case backflow.
First the high-temp waste gas that cylinder of diesel engine exhaust manifold 13 is discharged realizes air intake pressurized by large exhaust-gas turbocharger, and the waste gas of large turbine 10 outlets, is referred to as waste gas one time, and temperature is greatly about 400 ℃ to 450 ℃.
1. off-gas circuit.One time waste gas is introduced in steam generator 4, in steam generator 4, consist predominantly of a spiral pipeline, waste gas of high temperature enters in heating pipe 24 from steam generator 4 bottom inlets, water in heating casing, make it to generate water vapor, a waste gas that completes circulation is discharged from the secondary waste gas outlet 20 at steam generator 4 casing tops, becomes secondary waste gas, this process is the secondary utilization of waste gas, is once utilized as large turbosupercharger.Owing to having passed through twice utilization, exhaust energy is greatly to reduce, but in order to utilize to the full extent this portion of energy, at secondary waste gas outlet, a little pressurized machine is set again, by a three-way magnetic valve 19, secondary waste gas is introduced in little turbine 18, drive little gas compressor 7, water vapor is carried out to supercharging, to make up from steam generator the hypodynamic shortcoming of water vapor pressure out.The waste gas of discharging from little turbine 18, is referred to as waste gas three times, and when solenoid valve 6 is closed condition, three-way magnetic valve 19 will directly be introduced atmosphere secondary waste gas, to prevent little gas compressor 7 idle running.
2. water and water vapor loop.
I water loop.Water in this device has to be controlled water tank 1 and provides, and controls in water tank 1 and has added a set of leve monitor,, two position alarm 2, level sensor 3 and 22,23 solenoid valves, consists of.By level sensor, detect in real time the water liquid level in steam generator, when liquid level is more than the highest setting liquid level, alarm 2 produces alarm signal, controls solenoid valve 23 simultaneously and opens, and discharges excessive water, and water level reaches below safety value, and alarming value is cancelled.When water level is when setting minimum, prober sends signal equally, alarm 2 is reported to the police, and meanwhile, solenoid valve 22 is opened, water enters in steam generator 4 by controlling water tank 1, by 24 pairs of water of heating pipe, heat, in steam generator 4 bottoms, be provided with a hot water outlet, on pipeline, be provided with temperature transducer 28, by manual control manually operated valve 21, can meet the hot water needs of other purposes.
II water vapor loop.Water in steam generator 4 is through producing water vapor after 24 heating of spiral heating pipeline, by steam outlet 5, discharge and be connected with little gas compressor 7 entrances, be provided with pressure transducer 25 solenoid valves 6 therebetween, little gas compressor 7 outlets are connected with steam buffer tank 8 entrances, steam buffer tank 8 is provided with drain valve 9, in order to timely discharge condensed water.When water vapor pressure is too high or when sensor 26 signal values are greater than 27, bleed valve 11 is opened, the water vapor of bypass can be used, as dedusting, humidification etc.The water vapor of steam buffer tank 8 outlet, controls the flow of water vapors by flow control valve 12, then flow to one-way valve 15, by Venturi tube 16, sprays into intake duct, realizes and mixing with pressurized air, enters cylinder and fuel oil completes emulsifying combustion.
Claims (5)
1. a supercharged diesel engine intake duct humidifying device, it is characterized in that: comprise control water tank, steam generator, the first turbosupercharger, the second turbosupercharger, heating pipe is installed in steam generator, the waste gas that cylinder of diesel engine is discharged enters the heating pipe of steam generator after the turbine of the first turbosupercharger, heating pipe is connected with turbine and the atmosphere of the second turbosupercharger respectively by three-way magnetic valve, the turbine of the second turbosupercharger is communicated with atmosphere, control that water tank connects steam generator and to water filling in steam generator, in the gas compressor of the first turbosupercharger and the suction tude between cylinder of diesel engine, Venturi tube is installed, the steam that water in steam generator generates after the waste gas heating in heating pipe, after the gas compressor of the second turbosupercharger, enter Venturi tube, and then spray into suction tude.
2. a kind of supercharged diesel engine intake duct humidifying device according to claim 1, it is characterized in that: steam buffer device, flow control valve, one way stop peturn valve are installed between the gas compressor of the second turbosupercharger and Venturi tube, and steam buffer device lower end arranges drain valve; The first control solenoid valve is installed between the gas compressor of steam generator and the second turbosupercharger.
3. a kind of supercharged diesel engine intake duct humidifying device according to claim 1 and 2, it is characterized in that: on the pipeline that control water tank is connected with steam generator, be installed into water management solenoid valve, the lower end of steam generator arranges draining and controls solenoid valve, control installation height liquid level alarm in water tank, level sensor is installed in steam generator, level sensor detects the water liquid level in steam generator, when water liquid level surpasses the highest setting liquid level, two position alarm produces alarm signal, draining is controlled solenoid valve and is opened, when water liquid level is during lower than minimum setting liquid level, two position alarm produces alarm signal, water inlet is controlled solenoid valve and is opened.
4. a kind of supercharged diesel engine intake duct humidifying device according to claim 1 and 2, it is characterized in that: between steam generator and the gas compressor of the second turbosupercharger, the first pressure transducer is installed, the second pressure transducer is installed between flow control valve and one way stop peturn valve, the 3rd pressure transducer is installed between the gas compressor of the first turbosupercharger and Venturi tube, steam generator bottom arranges hot water outlet, and hot water exit installs hand control valve and temperature transducer.
5. a kind of supercharged diesel engine intake duct humidifying device according to claim 3, it is characterized in that: between steam generator and the gas compressor of the second turbosupercharger, the first pressure transducer is installed, the second pressure transducer is installed between flow control valve and one way stop peturn valve, the 3rd pressure transducer is installed between the gas compressor of the first turbosupercharger and Venturi tube, steam generator bottom arranges hot water outlet, and hot water exit installs hand control valve and temperature transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420131187.4U CN203756371U (en) | 2014-03-21 | 2014-03-21 | Gas inlet channel humidifying device for supercharged diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420131187.4U CN203756371U (en) | 2014-03-21 | 2014-03-21 | Gas inlet channel humidifying device for supercharged diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203756371U true CN203756371U (en) | 2014-08-06 |
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ID=51251656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420131187.4U Withdrawn - After Issue CN203756371U (en) | 2014-03-21 | 2014-03-21 | Gas inlet channel humidifying device for supercharged diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203756371U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953470A (en) * | 2014-03-21 | 2014-07-30 | 哈尔滨工程大学 | Gas inlet channel humidifying device for supercharged diesel engine |
| CN106194507A (en) * | 2016-07-08 | 2016-12-07 | 哈尔滨工程大学 | Realize supercharged diesel engine emulsifying combustion based on ejector pump and reduce NOxthe device of discharge |
| CN108661825A (en) * | 2018-06-26 | 2018-10-16 | 胡清萍 | Internal combustion engine oil-water mixed combustion apparatus |
-
2014
- 2014-03-21 CN CN201420131187.4U patent/CN203756371U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953470A (en) * | 2014-03-21 | 2014-07-30 | 哈尔滨工程大学 | Gas inlet channel humidifying device for supercharged diesel engine |
| CN106194507A (en) * | 2016-07-08 | 2016-12-07 | 哈尔滨工程大学 | Realize supercharged diesel engine emulsifying combustion based on ejector pump and reduce NOxthe device of discharge |
| CN108661825A (en) * | 2018-06-26 | 2018-10-16 | 胡清萍 | Internal combustion engine oil-water mixed combustion apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140806 Effective date of abandoning: 20160629 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |