CN210660352U - Air inlet humidifying device of engine - Google Patents
Air inlet humidifying device of engine Download PDFInfo
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- CN210660352U CN210660352U CN201921119712.XU CN201921119712U CN210660352U CN 210660352 U CN210660352 U CN 210660352U CN 201921119712 U CN201921119712 U CN 201921119712U CN 210660352 U CN210660352 U CN 210660352U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The utility model discloses an engine humidification device that admits air, include: a water tank; the engine exhaust pipe penetrates through the evaporation box; the first end part of the water inlet pipe is positioned in the water tank, the second end part of the water inlet pipe is positioned in the evaporation tank, and the second end part is provided with a nozzle which is over against an engine exhaust pipe; a water pump; the steam pipe is used for communicating the evaporation tank with the supercharger; and the control system is used for controlling the steam amount entering the supercharger. The water in the water tank enters the nozzle under the action of the water pump and is sprayed onto an exhaust pipe of the engine from the nozzle. The water is heated by the heat of the tail gas to become steam, and the steam enters the air inlet of the supercharger through the steam pipe and finally enters the air inlet pipeline of the engine. In addition, the control system is used for controlling the steam amount entering the supercharger so as to keep the inlet air of the engine at a set temperature and humidity value, thereby realizing the optimal emission of the tail gas.
Description
Technical Field
The utility model relates to an air intake technical field of engine, more specifically say, relate to an engine humidification device that admits air.
Background
The influence of the inlet air humidity of the engine on particulate matters and nitrogen oxides in the tail gas of the engine is large. The test results show that: when the inlet air humidity is about 45%, the optimal tail gas emission can be achieved.
Therefore, how to design an engine intake air humidifying device, which can humidify the intake air of the engine and make the intake air of the engine in the optimal humidity range, so as to realize the optimal exhaust emission, is a key problem to be solved by the technical staff in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an engine humidification device that admits air, this humidification device can carry out the humidification to admitting air of engine, makes admitting air of engine be in the best humiture scope to realize the optimal exhaust emissions.
An engine intake air humidification apparatus comprising:
a water tank for containing water;
the engine exhaust pipe penetrates through the evaporation box;
the first end part of the water inlet pipe is positioned in the water tank, the second end part of the water inlet pipe is positioned in the evaporation tank, a nozzle is arranged on the second end part, and the nozzle is opposite to the engine exhaust pipe;
the water pump is arranged in the water inlet pipe;
the steam pipe is used for communicating the evaporation tank with the supercharger;
a control system for controlling an amount of steam entering the supercharger.
Preferably, the control system comprises a controller, a temperature and humidity sensor and a first regulating valve;
the first regulating valve is arranged in the steam pipe and used for controlling the flow of the steam in the steam pipe;
the temperature and humidity sensor is used for detecting the temperature and humidity of steam and sending the detected temperature and humidity value to the controller;
the controller is used for controlling the opening of the first regulating valve according to the temperature and humidity value.
Preferably, the temperature and humidity sensor is disposed near the supercharger.
Preferably, the control system further comprises a second regulating valve, the second regulating valve is arranged in the water inlet pipe and is used for controlling the water flow of the water inlet pipe;
the controller is also used for controlling the opening degree of the second regulating valve according to the temperature and humidity value.
Preferably, the control system further comprises an exhaust pipe temperature sensor, the exhaust pipe temperature sensor is configured to detect a temperature in an exhaust pipe of the engine and send an exhaust pipe temperature value to the controller, and the controller is further configured to control the opening degree of the second regulating valve according to the exhaust pipe temperature value.
Preferably, the second regulating valve is a three-way proportional valve, an inlet and a first outlet of the three-way proportional valve are positioned in the water inlet pipe, and a second outlet of the three-way proportional valve is communicated with the water tank.
Preferably, an insulating layer is further arranged outside the steam pipe.
Preferably, the method further comprises the following steps: a heating belt for heating the steam pipe; and the steam pipe temperature sensor is used for transmitting the detected steam pipe temperature value to the controller, so that the controller controls the heating power of the heating belt according to the steam pipe temperature value.
Preferably, the steam pipe includes an inclined pipe having an air inlet lower than an air outlet of the lateral pipe.
Preferably, the bottom of the evaporation tank is provided with a residue discharge valve.
According to the technical scheme, the water in the water tank enters the nozzle under the action of the water pump and is sprayed onto the exhaust pipe of the engine from the nozzle. The water is heated by the heat of the tail gas to become steam, and the steam enters the air inlet of the supercharger through the steam pipe and finally enters the air inlet pipeline of the engine. In addition, the control system is used for controlling the steam amount entering the supercharger so as to keep the air inlet of the engine at a set temperature and humidity value. The utility model provides a humidification device can make admitting air of engine keep at the humiture of settlement to realize the optimal emission of tail gas.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained without inventive efforts.
Fig. 1 is a schematic structural view of an engine intake air humidifying device according to an embodiment of the present invention.
Wherein, 1 is a water tank, 2 is a water inlet pipe, 3 is a water pump, 4 is a second regulating valve, 5 is an evaporation tank, 6 is a steam pipe, 7 is an exhaust pipe temperature sensor, 8 is a first regulating valve, 9 is a steam pipe temperature sensor, 10 is a residue discharge valve, and 11 is a temperature and humidity sensor.
Detailed Description
The utility model discloses an engine humidification device that admits air, this humidification device can carry out the humidification to admitting air of engine, make admitting air of engine be in the best humiture scope to realize the optimal emission of tail gas.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
In an embodiment of the present invention, the engine air inlet humidifying device includes: the device comprises a water tank 1, an evaporation tank 5, a water inlet pipe 2, a water pump 3, a steam pipe 6 and a control system.
Wherein the water tank 1 is used to contain water. The evaporation tank 5 is used for forming steam. The engine exhaust pipe penetrates the evaporation tank 5. The first end of the inlet pipe 2 is located in the water tank 1 and the second end is located in the evaporation tank 5. And a nozzle is arranged on the second end part and is opposite to the exhaust pipe of the engine. The nozzle may be a plurality arranged along the second end portion. A water pump 3 is arranged in the water inlet pipe 2 for pumping the water pump 3 from the water tank 1 into the evaporation tank 5. The steam pipe 6 is used for communicating the evaporation tank 5 and the supercharger.
After entering the evaporation tank 5, water is sprayed onto the exhaust pipe of the engine from the nozzle, and is heated by the heat of the exhaust gas in the exhaust pipe of the engine, so that the water is changed into steam. The steam enters the air intake of the supercharger through a steam pipe 6 and then enters the intake pipe of the engine. The control system is used for controlling the steam amount entering the supercharger, or controlling the air inflow entering an air inlet pipe of the engine, so that the temperature and the humidity of the inlet air of the engine are kept at the set temperature and humidity. In the embodiment, the engine intake air humidifying device can keep the intake air of the engine at the set temperature and humidity value, so that the exhaust gas of the engine can achieve the optimal effect.
Further, the control system comprises a controller, a temperature and humidity sensor 11 and a first regulating valve 8. A first regulating valve 8 is provided in the steam pipe 6 for regulating the flow rate of steam in the steam pipe 6. The temperature and humidity sensor 11 is used for detecting the temperature and humidity of the steam and sending the detected temperature and humidity value to the controller. The controller controls the opening of the first regulating valve 8 according to the temperature and humidity value started by the temperature and humidity sensor 11. The specific adjustment process is as follows: if the controller detects that the temperature and humidity value sent by the temperature and humidity sensor 11 is smaller than the set temperature and humidity value, the controller controls the opening of the first regulating valve 8 to be increased, the flow of steam is increased, and more steam enters the air inlet of the engine in unit time; if the controller detects that the temperature and humidity value started by the temperature and humidity sensor 11 is larger than the set temperature and humidity value, the controller controls the opening of the first regulating valve 8 to be reduced, the flow of the steam is reduced, and less steam enters the air inlet of the engine within a single time.
Further, it is preferable to dispose the temperature/humidity sensor 11 on the side close to the supercharger. Because the temperature and humidity values of the steam close to the supercharger are closest to the temperature and humidity values of the steam entering the air inlet of the engine, the control accuracy is improved.
Further, in an embodiment of the present invention, the control system further comprises a second regulating valve 4. A second regulating valve 4 is arranged in the water inlet pipe 2 for controlling the water flow of the water inlet pipe 2. The controller also controls the opening of the second regulating valve 4 according to the temperature and the humidity. The specific adjustment process is as follows: when the controller detects that the temperature and humidity sent by the temperature and humidity sensor 11 is smaller than a set temperature and humidity value, the controller controls the opening of the second regulating valve 4 to be increased, so that the water flow of the water inlet pipe 2 is increased, and the evaporation box 5 generates more steam in unit time; if the controller detects that the temperature and humidity sent by the temperature and humidity sensor 11 is greater than the set temperature and humidity value, the controller can control the opening degree of the second regulating valve 4 to be reduced, so that the water flow of the water inlet pipe 2 is reduced, and the evaporation box 5 generates less steam in unit time.
Further, in an embodiment of the present invention, the control system further includes an exhaust pipe temperature sensor 7. The exhaust pipe temperature sensor 7 is used to detect the temperature in the exhaust pipe of the engine, and then sends the detected exhaust pipe temperature value to the controller. The controller controls the opening degrees of the first regulating valve 8 and the second regulating valve 4 according to the exhaust pipe temperature value. The specific adjustment process is as follows: if the controller detects that the temperature value of the exhaust pipe is smaller than the set temperature value of the exhaust pipe, which indicates that the heat is insufficient, and the steam generated by the steam box 5 in unit time is insufficient in set amount, the controller increases the opening degree of the second regulating valve 4, so that more water enters the steam box 5, and the steam amount formed in unit time is increased.
Further, the second regulating valve 4 is set as a three-way proportional valve. The three-way proportional valve includes an inlet and two outlets. Wherein the inlet and the first outlet are located in the inlet conduit 2 for conducting the inlet conduit 2. The second outlet is communicated with the water tank 1 through a return pipe. The controller controls the opening of the second regulating valve 4 to increase, namely controls the water yield of the first outlet to increase and controls the water yield of the second outlet to decrease; the controller controls the opening of the second regulating valve 4 to be reduced, and even if the water yield of the first outlet is controlled to be reduced, the water yield of the second outlet is controlled to be increased.
Further, in order to prevent steam from condensing in steam pipe 6 as much as possible, an insulating layer may be provided outside steam pipe 6. Further, a heating belt for heating the steam pipe 6 may be provided. The heating tape may be wound around the outer surface of steam pipe 6 or embedded inside steam pipe 6. In addition, a steam pipe temperature sensor 9 is additionally arranged, and the steam pipe temperature sensor 9 is used for detecting the temperature in the steam pipe 6 and transmitting the steam pipe temperature value to the controller. The controller controls the heating power of the heating belt according to the temperature value of the steam pipe. The specific control process is as follows: if the controller detects that the temperature value of the steam pipe is lower than the ideal temperature value, the controller increases the heating power of the heating belt; if the controller detects a steam pipe temperature value higher than the desired temperature value, the controller reduces the heating power of the heating belt. At the desired temperature value of the steam pipe 6, the steam will neither condense nor overheat.
In an embodiment of the invention, the steam pipe 6 comprises an inclined pipe. The air inlet of the inclined pipe is lower than the air outlet. The steam inevitably forms condensed water in the steam pipe 6. The condensed water inside the inclined tube flows back under the action of gravity. The steam pipe 6 may also comprise a vertical pipe. The condensed water inside the vertical pipe will flow back under the action of gravity. That is, the condensed water inside the entire steam pipe 6 flows back into the evaporation tank 5. This improves the smoothness of steam pipe 6.
Further, a residual discharge valve 10 may be further provided at the bottom of the evaporation tank 5 to discharge residual water inside the evaporation tank 5.
Finally, it should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An engine intake air humidification device, comprising:
a water tank (1) for holding water;
the engine exhaust pipe penetrates through the evaporation box (5);
the first end part of the water inlet pipe (2) is positioned in the water tank (1), the second end part of the water inlet pipe is positioned in the evaporation tank (5), and a nozzle is arranged on the second end part and is opposite to the engine exhaust pipe;
the water pump (3) is arranged in the water inlet pipe (2);
the steam pipe (6) is used for communicating the evaporation tank (5) and the supercharger;
a control system for controlling an amount of steam entering the supercharger.
2. The engine intake air humidification device of claim 1, wherein the control system includes a controller, a temperature and humidity sensor (11), a first regulator valve (8);
the first regulating valve (8) is arranged in the steam pipe (6) and is used for controlling the flow of the steam in the steam pipe (6);
the temperature and humidity sensor (11) is used for detecting the temperature and humidity of steam and sending the detected temperature and humidity value to the controller;
the controller is used for controlling the opening degree of the first regulating valve (8) according to the temperature and humidity value.
3. The engine intake air humidification device of claim 2, wherein the temperature and humidity sensor (11) is disposed adjacent to the supercharger.
4. The engine intake air humidification apparatus of claim 2, characterized in that the control system further comprises a second regulating valve (4), the second regulating valve (4) being provided in the intake pipe (2) for controlling the water flow of the intake pipe (2);
the controller is also used for controlling the opening degree of the second regulating valve (4) according to the temperature and humidity value.
5. The engine intake air humidification apparatus according to claim 4, characterized in that the control system further includes an exhaust pipe temperature sensor (7), the exhaust pipe temperature sensor (7) being configured to detect a temperature in the engine exhaust pipe and send an exhaust pipe temperature value to the controller, the controller being further configured to control the opening degree of the second regulation valve (4) in accordance with the exhaust pipe temperature value.
6. The engine intake air humidification device according to claim 4, characterized in that the second regulating valve (4) is a three-way proportional valve, the inlet and the first outlet of which are located in the water inlet pipe (2), the second outlet of which communicates with the water tank (1).
7. The engine intake air humidification device according to claim 1, wherein an insulation layer is further provided outside the steam pipe (6).
8. The engine intake air humidification device of claim 2, further comprising: a heating belt for heating the steam pipe (6); a steam pipe temperature sensor (9) for detecting an internal temperature of the steam pipe (6), the steam pipe (6) temperature sensor being configured to transmit a detected steam pipe temperature value to the controller, so that the controller controls the heating power of the heating belt according to the steam pipe temperature value.
9. The engine intake air humidification device of claim 1, wherein the steam pipe (6) includes an inclined pipe having an inlet lower than an outlet thereof.
10. The engine intake air humidification device according to claim 1, characterized in that a blow-off valve (10) is provided at the bottom of the evaporation tank (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921119712.XU CN210660352U (en) | 2019-07-16 | 2019-07-16 | Air inlet humidifying device of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921119712.XU CN210660352U (en) | 2019-07-16 | 2019-07-16 | Air inlet humidifying device of engine |
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| Publication Number | Publication Date |
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| CN210660352U true CN210660352U (en) | 2020-06-02 |
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| CN201921119712.XU Active CN210660352U (en) | 2019-07-16 | 2019-07-16 | Air inlet humidifying device of engine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113250865A (en) * | 2021-05-31 | 2021-08-13 | 武汉飞恩微电子有限公司 | Engine air intake control system and method |
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2019
- 2019-07-16 CN CN201921119712.XU patent/CN210660352U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113250865A (en) * | 2021-05-31 | 2021-08-13 | 武汉飞恩微电子有限公司 | Engine air intake control system and method |
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