CN113417777B - Engine air inlet heating device - Google Patents
Engine air inlet heating device Download PDFInfo
- Publication number
- CN113417777B CN113417777B CN202110876731.2A CN202110876731A CN113417777B CN 113417777 B CN113417777 B CN 113417777B CN 202110876731 A CN202110876731 A CN 202110876731A CN 113417777 B CN113417777 B CN 113417777B
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- pipe
- air
- engine
- box body
- air outlet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
- F02M31/04—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture
- F02M31/06—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture by hot gases, e.g. by mixing cold and hot air
- F02M31/08—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture by hot gases, e.g. by mixing cold and hot air the gases being exhaust gases
- F02M31/0825—Particular constructional characteristics of the heat exchange surfaces, e.g. finned pipes, coiled pipes or the like
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention discloses an engine inlet air heating device which comprises a closed box body, an inlet pipe, an outlet pipe and an engine exhaust pipe, wherein the outlet pipe is used for conveying gas to an engine, the engine exhaust pipe is used for being communicated with an exhaust port of a three-way catalyst, the engine exhaust pipe penetrates through the closed box body, and the inlet pipe and the outlet pipe are respectively communicated with the closed box body; and the air outlet end of the air outlet pipe is connected with a temperature controller. The engine intake heating device of the invention effectively utilizes the high heat energy of the exhaust gas, thereby achieving the effect of energy saving.
Description
Technical Field
The invention relates to the technical field of engines, in particular to an engine intake air heating device.
Background
Different inlet air temperatures are usually used in engine development and testing, and the air is heated by a high-power heating device and then input into the engine, which causes great energy consumption.
Disclosure of Invention
The invention aims to provide an engine intake air heating device, which effectively utilizes high heat energy of exhaust gas to further achieve the effect of energy conservation.
In order to achieve the purpose, the invention provides an engine inlet air heating device which comprises a closed box body, an inlet pipe, an outlet pipe and an engine exhaust pipe, wherein the outlet pipe is used for conveying gas to an engine, the engine exhaust pipe is used for being communicated with an exhaust port of a three-way catalyst, the engine exhaust pipe penetrates through the closed box body, and the inlet pipe and the outlet pipe are respectively communicated with the closed box body; and the air outlet end of the air outlet pipe is connected with a temperature controller.
Further, a plurality of cooling fins are mounted on the engine exhaust pipe.
Furthermore, N first partition plates extending along the radial direction of the engine exhaust pipe are arranged in the closed box body, N is more than or equal to 1, and the closed box body is divided into N +1 heating chambers through the partition plates or the partition plates; the air inlet pipe and the air outlet pipe are both multi-channel pipes, each multi-channel pipe is provided with N +2 mutually communicated channels and N +2 ends, one end of each air inlet pipe is used as an air inlet end of the air inlet pipe, the rest N +1 ends are used as air outlet ends of the air inlet pipe and are respectively and correspondingly connected with the N +1 heating chambers 11, and valves used for controlling the opening and closing of the corresponding pipelines are respectively arranged on the N air outlet ends of the N +1 air outlet ends of the air inlet pipe; one end of the air outlet pipe is used for being connected with a temperature controller, and the other N +1 ends are respectively connected with the N +1 heating chambers in a one-to-one correspondence mode.
Furthermore, the closed box body is a cuboid or a cube.
Further, the engine exhaust pipe transversely passes through the closed box body, and the first partition plate is vertically arranged in the closed box body.
Further, intake pipe and outlet duct set up adjacent two faces at the airtight box respectively, be provided with the second baffle in the airtight box, the one end and the airtight box of second baffle are connected, intake pipe and outlet duct are located the both sides of second baffle.
Further, a spoiler is further arranged in the closed box body.
Furthermore, a first flange plate used for being connected with the three-way catalyst and a second flange plate used for being connected with the silencer are respectively arranged at two ends of the engine exhaust pipe.
Further, an air pressurizing device is arranged on the air inlet pipe.
Furthermore, the air outlet pipe is connected with the temperature controller through a high-temperature-resistant hose, and the air outlet end of the temperature controller is connected with an air filter.
Compared with the prior art, the invention has the following advantages:
the engine intake heating device has a compact structure, does not need a heating device with larger power, improves the temperature of intake gas through the heat exchange between high-temperature exhaust gas and low-temperature gas generated in the combustion process of the engine, effectively utilizes the high heat energy of the exhaust gas, and further achieves the effect of energy conservation; and the required temperature of the engine can be adjusted according to the opening amount of the valve.
Drawings
FIG. 1 is a schematic structural diagram of an engine intake air heating device according to the present invention;
FIG. 2 is a side view of the engine intake air heating apparatus of the present invention;
FIG. 3 is another side view of the engine intake air heating apparatus of the present invention.
In the figure:
1-a closed box body and 11-a heating chamber; 2-engine exhaust pipe, 21-first flange, 22-second flange, 23-corrugated pipe; 3, an air inlet pipe; 4-an air outlet pipe, 41-a high temperature resistant hose; 5-a temperature controller; 6-a valve; 7-a second separator; 8-a heat sink; 9-spoiler, 10-first baffle; a 1-an air filter; a-an engine.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings.
Referring to fig. 1 to 3, the embodiment discloses an engine intake air heating device, which includes a sealed box 1, an intake pipe 3, an outlet pipe 4 for conveying gas to an engine, and an engine exhaust pipe 2 for communicating with an exhaust port of a three-way catalyst, wherein the engine exhaust pipe 2 penetrates through the sealed box 1, and the intake pipe 3 and the outlet pipe 4 are respectively communicated with the sealed box 1; and the air outlet end of the air outlet pipe 4 is connected with a temperature controller 5. The closed box body 1 is welded on an engine exhaust pipe 2. At this time, the heat-exchanged gas enters the temperature controller 5 through the gas outlet pipe 4 and is input to the engine a after being regulated and controlled by the temperature controller 5.
In this embodiment, an air pressurizing device is provided on the intake pipe.
In this embodiment, a high temperature resistant hose 41 is connected between the air outlet pipe 4 and the temperature controller 5, and an air filter a1 is connected to an air outlet end of the temperature controller 5. The air filter a1 is connected with an air inlet end temperature controller 5, and an air outlet end of the air filter is connected with the engine A. At this time, the heat-exchanged gas enters the temperature controller 5 and the air cleaner a1 through the outlet pipe 4 in sequence and is then supplied to the engine a.
In the embodiment, N first partition plates 10 extending along the radial direction of the engine exhaust pipe 2 are arranged in the closed box body 1, N is more than or equal to 1, and the closed box body 1 is divided into N +1 heating chambers 11 through the partition plates or the partition plates; the gas inlet pipe 3 and the gas outlet pipe 4 are both multi-channel pipes, each multi-channel pipe is provided with N +2 mutually communicated channels and N +2 ends, one end of the gas inlet pipe 3 is used as a gas inlet end of the gas inlet pipe 3, the other N +1 ends are used as gas outlet ends of the gas inlet pipe 3 and are respectively and correspondingly connected with N +1 heating chambers 11, and N gas outlet ends of the N +1 gas outlet ends of the gas inlet pipe 3 are respectively provided with a valve 6 for controlling the opening and closing of the corresponding pipeline; one end of the air outlet pipe 4 is used for being connected with the temperature controller 5, and the other N +1 ends are respectively connected with the N +1 heating chambers 11 in a one-to-one correspondence mode.
The method for heating the engine intake by adopting the engine intake heating device comprises the following steps: when the temperature required by the engine A is low, all the valves 6 are closed, and at the moment, the gas only carries out heat energy exchange through one heating chamber 11, and then is input into the engine A after being regulated and controlled by the gas outlet pipe 4 and the high temperature resistant hose 41 through the temperature controller 5; when the temperature required by the engine A is high, at least one valve 6 is opened, gas simultaneously carries out heat energy exchange through a plurality of heating chambers 11, and then is input into the engine A after being regulated and controlled by an air outlet pipe 4 and a high temperature resistant hose 41 through a temperature controller 5.
In this embodiment, the closed box 1 is a rectangular parallelepiped or a cube.
In this embodiment, the engine exhaust pipe 2 transversely penetrates through the sealed box body 1, and the first partition plate 10 is vertically arranged in the sealed box body 1.
In this embodiment, the air inlet pipe 3 and the air outlet pipe 4 are respectively arranged on two adjacent surfaces of the sealed box body 1, a second partition plate 7 is arranged in the sealed box body 1, one end of the second partition plate 7 is connected with the sealed box body 1, and the air inlet pipe 3 and the air outlet pipe 4 are located on two sides of the second partition plate 7.
In the present embodiment, a plurality of fins 8 are attached to the engine exhaust pipe 2.
In this embodiment, a spoiler 9 is further disposed in the sealed box 1. Spoilers 9 are installed at the inner corners of the closed box 1.
In the present embodiment, a first flange 21 for connection to a three-way catalyst and a second flange 22 for connection to a muffler are provided at both ends of the engine exhaust pipe 2, respectively. The engine exhaust pipe 2 and the first flange 21 are connected by a bellows 23.
In order to utilize the high heat energy of the exhaust gas, an engine intake air heating device is generally arranged at the exhaust gas system, the engine intake air heating device obtains gas from air, and then the gas and the high heat energy exhaust gas exchange heat energy, so that the high temperature gas is obtained for simulating a high temperature environment.
The engine intake heating device has a compact structure, does not need a heating device with larger power, improves the temperature of intake gas through the heat exchange between high-temperature exhaust gas and low-temperature gas generated in the combustion process of the engine, effectively utilizes the high heat energy of the exhaust gas, and further achieves the effect of energy conservation; and the required temperature of the engine can be adjusted according to the number of the opened valves.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the above teachings. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (7)
1. The engine air inlet heating device is characterized by comprising a closed box body (1), an air inlet pipe (3), an air outlet pipe (4) used for conveying air to an engine and an engine exhaust pipe (2) used for being communicated with an air outlet of a three-way catalyst, wherein the engine exhaust pipe (2) penetrates through the closed box body (1), and the air inlet pipe (3) and the air outlet pipe (4) are respectively communicated with the closed box body (1); the air outlet end of the air outlet pipe (4) is connected with a temperature controller (5); n first partition plates (10) extending along the radial direction of the engine exhaust pipe (2) are arranged in the closed box body (1), N is larger than or equal to 1, and the closed box body (1) is divided into N +1 heating chambers (11) through the partition plates; the air inlet pipe (3) and the air outlet pipe (4) are both multi-channel pipes, and each multi-channel pipe is provided with N +2 mutually communicated channels and N +2 ends; one end of the air inlet pipe (3) is used as an air inlet end of the air inlet pipe (3), the other N +1 ends are used as air outlet ends of the air inlet pipe (3) and are respectively and correspondingly connected with the N +1 heating chambers (11), and valves (6) used for controlling the opening and closing of corresponding pipelines are respectively arranged on the N air outlet ends of the N +1 air outlet ends of the air inlet pipe (3); one end of the air outlet pipe (4) is used for being connected with the temperature controller (5), and the other N +1 ends are respectively connected with the N +1 heating chambers (11) in a one-to-one correspondence manner;
the engine exhaust pipe (2) transversely penetrates through the closed box body (1), and the first partition plate (10) is vertically arranged in the closed box body (1); the air inlet pipe (3) and the air outlet pipe (4) are respectively arranged on two adjacent surfaces of the closed box body (1), a second partition plate (7) is arranged in the closed box body (1), one end of the second partition plate (7) is connected with the closed box body (1), and the air inlet pipe (3) and the air outlet pipe (4) are located on two sides of the second partition plate (7).
2. The engine intake-air heating apparatus according to claim 1, characterized in that a plurality of fins (8) are mounted on the engine exhaust pipe (2).
3. The engine intake air heating apparatus according to claim 1 or 2, wherein the containment case (1) is a rectangular parallelepiped or a cube.
4. The engine intake air heating apparatus according to claim 1 or 2, wherein a spoiler (9) is further provided inside the hermetic case (1).
5. The engine intake air heating apparatus according to claim 4, wherein both ends of the engine exhaust pipe (2) are provided with a first flange (21) for connection with a three-way catalyst and a second flange (22) for connection with a muffler, respectively.
6. The engine intake-air heating apparatus according to claim 1 or 2, characterized in that an air pressurizing device is provided on the intake pipe (3).
7. The engine intake air heating device according to claim 6, wherein the outlet pipe (4) is connected with the temperature controller (5) through a high temperature resistant hose (41), and an air outlet end of the temperature controller (5) is connected with an air filter (a 1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110876731.2A CN113417777B (en) | 2021-07-31 | 2021-07-31 | Engine air inlet heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110876731.2A CN113417777B (en) | 2021-07-31 | 2021-07-31 | Engine air inlet heating device |
Publications (2)
| Publication Number | Publication Date |
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| CN113417777A CN113417777A (en) | 2021-09-21 |
| CN113417777B true CN113417777B (en) | 2023-03-28 |
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| CN202110876731.2A Active CN113417777B (en) | 2021-07-31 | 2021-07-31 | Engine air inlet heating device |
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