CN216950608U

CN216950608U - V type gas engine inlet arrangement structure

Info

Publication number: CN216950608U
Application number: CN202220471584.0U
Authority: CN
Inventors: 赖柱波; 苗龙森; 曾志龙; 唐克远
Original assignee: Guangxi Yuchai Marine and Genset Power Co Ltd
Current assignee: Guangxi Yuchai Marine and Genset Power Co Ltd
Priority date: 2022-03-04
Filing date: 2022-03-04
Publication date: 2022-07-12
Anticipated expiration: 2032-03-04

Abstract

The utility model discloses an air inlet arrangement structure of a V-shaped gas engine, which comprises a gas three-way pipe, wherein two output ends of the gas three-way pipe are respectively connected with a mixer, the mixer is connected with superchargers, the two superchargers are connected with the same intercooler, the intercooler is connected with two throttle valves, the throttle valves are connected with flame arresters, the flame arresters are connected with an air inlet main pipe, the mixer is connected with an air inlet assembly, and the superchargers are connected with the same turbine rear connecting pipe. The utility model relates to an air inlet arrangement structure of a V-shaped gas engine, which belongs to the technical field of engines, and has the advantages of simple structure and low cost.

Description

V type gas engine inlet arrangement structure

Technical Field

The utility model relates to an engine technology, in particular to an air inlet arrangement structure of a V-shaped gas engine.

Background

At present, under the arrangement condition of having two superchargers, the existing V-shaped gas engine generally needs to be provided with two gas flow metering valves to control fuel, and possibly two air flow metering valves to control air inlet amount so as to adjust the mixed gas passing through the two superchargers, thereby adjusting the unbalance of two sides caused by the superchargers or the structures of the two sides and the like. However, this arrangement of two superchargers leads to increased costs, in particular of the flow valves; the other is a plurality of flow valves which need to be calculated and controlled, and the complexity of a control system is necessarily increased.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide an intake arrangement structure of a V-type gas engine, which can reduce configuration and complexity of a control system.

In order to achieve the purpose, the utility model provides a V-shaped gas engine gas inlet arrangement structure which comprises a gas three-way pipe, wherein two output ends of the gas three-way pipe are respectively connected with a gas inlet pipe, the gas inlet pipe is connected with a mixer, the mixer is connected with a supercharger, the supercharger is connected with a gas compressor gas outlet connecting pipe, the two gas compressor gas outlet connecting pipes are connected with the same intercooler gas inlet pipe, the intercooler gas inlet pipe is connected with an intercooler, two intercooler gas outlet pipes are arranged on the intercooler, the intercooler gas outlet pipes are connected with a throttle valve, the throttle valve is connected with a flame arrester, the flame arrester is connected with a gas inlet main pipe, and an air inlet assembly is connected onto the mixer.

Furthermore, two output ends of the gas three-way pipe are provided with first expansion joints, and an input end of the gas three-way pipe is provided with a second expansion joint.

Furthermore, the two superchargers are connected with the same turbine rear connecting pipe.

As a further improvement, a third expansion joint is arranged between one supercharger and the turbine rear connecting pipe

Further, the air intake assembly includes an air flow control valve coupled to the mixer and an air filter coupled to the air flow control valve.

Furthermore, two air inlet ends of the intercooler air inlet pipe are symmetrically arranged.

Advantageous effects

Compared with the prior art, the utility model has the advantages that:

according to the V-shaped gas engine air inlet arrangement structure, under the conditions of reducing configuration and complexity of a control system, the mixed gas after passing through the supercharger is subjected to secondary mixing on the air inlet pipeline arrangement structure, so that the concentration difference of the mixed gas entering the cylinders on the two sides is reduced, the working difference of the cylinders on the two sides is finally reduced, the problem of unbalance of the two sides of the V-shaped gas engine is avoided, and the V-shaped gas engine air inlet arrangement structure has the advantages of simple structure and low cost.

Drawings

FIG. 1 is a schematic structural view of an intake arrangement of a V-type gas engine of the present invention;

FIG. 2 is a schematic structural view of an intake arrangement of the V-type gas engine of the present invention;

FIG. 3 is an intake schematic view of the V-type gas engine intake arrangement of the present invention;

in the figure: 1. an intercooler; 2. an air cleaner; 3. an air outlet connecting pipe of the air compressor; 4. a turbine rear adapter; 5. a supercharger; 6. an air flow control valve; 7. a mixer; 8. a gas inlet pipe; 9. a first expansion joint; 10. a gas three-way pipe; 11. a second expansion joint; 12. an air intake assembly; 13. an intercooler air inlet pipe; 14. an intercooler air outlet pipe; 15. a throttle valve; 16. a flame arrestor; 17. an intake manifold; 18. and a third expansion joint.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.

As shown in fig. 1-3, a V-shaped gas engine air inlet arrangement structure comprises a gas three-way pipe 10, two output ends of the gas three-way pipe 10 are respectively connected with a gas inlet pipe 8, the gas inlet pipe 8 is connected with a mixer 7, the mixer 7 is connected with a supercharger 5, the supercharger 5 is connected with a compressor air outlet connecting pipe 3, the two compressor air outlet connecting pipes 3 are connected with a same intercooler air inlet pipe 13, the intercooler air inlet pipe 13 is connected with an intercooler 1, two intercooler air outlet pipes 14 are arranged on the intercooler 1, the intercooler air outlet pipes 14 are connected with a throttle valve 15, the throttle valve 15 is connected with a flame arrester 16, the flame arrester 16 is connected with an air inlet main pipe 17, and the mixer 7 is connected with an air inlet assembly 12; the gas enters the gas three-way pipe 10 through the gas inlet valve assembly, then is injected into the two mixers 7 respectively, is mixed with the air from the air assembly 12 in the mixers 7, and then is pressurized through the supercharger 5; the gas after mixing and supercharging in the two mixers 7 enters the same intercooler air inlet pipe 13, the two gas streams are fully mixed again in the intercooler air inlet pipe 13 and enter the intercooler 1, then are separated again, and are injected into the two air inlet header pipes through the two intercooler air outlet pipes 14 respectively.

In this embodiment, two output ends of the gas three-way pipe 10 are provided with first expansion joints 9, and an input end of the gas three-way pipe 10 is provided with a second expansion joint 11; the expansion joint can compensate the thermal expansion difference generated by the gas three-way pipe 10 and the gas inlet pipe 8 due to different wall temperatures, and reduce the axial load of the gas three-way pipe 10 and the gas inlet pipe 8, thereby reducing the temperature difference stress of the gas three-way pipe 10 and the gas inlet pipe 8 and avoiding causing strength damage, instability damage and pipe pull-off damage.

In the embodiment, two superchargers 5 are connected with the same turbine rear connecting pipe 4; the two superchargers 5 are connected with the same turbine rear connecting pipe 4 mainly for reducing configuration and cost.

In the embodiment, a third expansion joint 18 is arranged between one of the superchargers 5 and the turbine rear connecting pipe 4; the expansion joint can compensate the thermal expansion difference of the two superchargers 5 caused by different wall temperatures, and reduce the axial load of the two superchargers 5, thereby reducing the temperature difference stress of the two superchargers 5 and avoiding causing strength damage, instability damage and pipe pull-out damage.

In the present embodiment, the air intake assembly 12 includes an airflow control valve 6 connected to the mixer 7 and an air cleaner 2 connected to the airflow control valve 6; the air filter 2 filters air and then the air is controlled by the air flow control valve 6 to enter the mixer 7 to be mixed with the fuel gas.

In this embodiment, two inlet ends of the intercooler air inlet pipe 13 are symmetrically arranged; the two air inlet ends are symmetrically arranged, so that the fuel gas entering from the two air compressor air outlet connecting pipes 3 is flushed and mixed more fully.

The above is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that several variations and modifications can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent.

Claims

1. The V-shaped gas engine air inlet arrangement structure is characterized by comprising a gas three-way pipe (10), wherein two output ends of the gas three-way pipe (10) are respectively connected with a gas inlet pipe (8), the gas inlet pipe (8) is connected with a mixer (7), the mixer (7) is connected with a supercharger (5), the supercharger (5) is connected with a gas compressor air outlet connecting pipe (3), the two gas compressor air outlet connecting pipes (3) are connected with a same intercooler air inlet pipe (13), the intercooler air inlet pipe (13) is connected with an intercooler (1), two intercooler air outlet pipes (14) are arranged on the intercooler (1), the intercooler air outlet pipes (14) are connected with an air throttle (15), the air throttle (15) is connected with a flame arrester (16), and the flame arrester (16) is connected with an air inlet main pipe (17), an air inlet component (12) is connected to the mixer (7).

2. The air inlet arrangement structure of a V-shaped gas engine as claimed in claim 1, wherein a first expansion joint (9) is arranged on two output ends of the gas tee (10), and a second expansion joint (11) is arranged on an input end of the gas tee (10).

3. The intake arrangement of a V-type gas engine according to claim 1, wherein the same turbine rear nozzle (4) is connected to both superchargers (5).

4. A V-type gas engine intake arrangement according to claim 3, wherein a third expansion joint (18) is provided between one of the superchargers (5) and the turbine rear nozzle (4).

5. A V-type gas engine intake arrangement according to claim 1, characterized in that the air intake assembly (12) comprises an air flow control valve (6) connected to the mixer (7) and an air filter (2) connected to the air flow control valve (6).

6. The intake arrangement structure of a V-type gas engine according to claim 1, wherein both intake ends of the intercooler intake pipe (13) are symmetrically disposed.