CN210003423U

CN210003423U - body type gas injection mixer

Info

Publication number: CN210003423U
Application number: CN201921021824.1U
Authority: CN
Inventors: 王家祥; 杨占林; 蔡晓霞
Original assignee: Guangxi Yuchai Machinery Co Ltd
Current assignee: Guangxi Yuchai Marine and Genset Power Co Ltd
Priority date: 2019-07-03
Filing date: 2019-07-03
Publication date: 2020-01-31
Anticipated expiration: 2029-07-03

Abstract

The utility model discloses an style gas sprays blender, including spraying and mixing the integrated body, a plurality of sprayers, cross wing hybrid portion and vortex portion, spray and mix the integrated body essence and be the drum structure, a plurality of sprayers set up in spraying and mix the upper portion of integrated body, a plurality of sprayers are used for spraying and mix the integrated body and spray the gas, cross wing hybrid portion sets up in spraying and mixes the internal middle part of integrated body, vortex portion sets up in spraying and mixes the internal end of integrated body, wherein the air gets into and mixes the back with the gas that a plurality of sprayers sprayed from the end of spraying and mixing the integrated body, carry out intensive mixing through cross wing hybrid portion earlier, discharge from spraying and mixing the integrated body's end in addition after the secondary mixing of vortex portion again, the utility model discloses a style gas sprays blender has and effectively solves high-power gas engine middling pressure back gas and air mixing homogeneity problem.

Description

body type gas injection mixer

Technical Field

The utility model relates to a style gas jet mixer of integrated spoilers.

Background

With the national emphasis on environmental protection, a gas engine is widely used in the land power generation field and the marine field, at present, a medium-pressure system (gas pressure 400-600 kPa) gas engine is generally adopted in occasions with high requirements on engine transient response, such as a drilling platform, a ship engine and the like, and the gas of the medium-pressure system gas engine is injected after being pressurized and cooled, so that the dynamic response of the fuel is fast, and the transient response of the engine is good.

The style blender in the present market mainly has style gas injection blender without turbulent flow, namely the gas and air directly enter the cylinder to burn after mixing in the blender, as shown in fig. 1, fig. 1 is the structure schematic diagram of style blender of the prior art, style blender of the prior art mainly includes upper air rail 1, ejector 2, lower air rail and blender integrated body 3, pressure temperature sensor 4, air inlet joint 5, blender portion 6 to constitute, style blender of the prior art has following superiority and disadvantages:

the advantages are that: the gas injection transient response is fast, and the structure is compact.

The disadvantages are as follows: the gas connecting piece is in threaded connection, and is easy to leak gas after being assembled and disassembled for many times, so that safety risk is caused.

Therefore, integrated spoiler type gas injection mixers suitable for applying a medium-pressure system on an engine with the power of more than 500kW need to be designed, and the problem of gas and air mixing uniformity of a high-power medium-pressure engine is solved.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art .

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide kinds of style gas jet mixer, it can effectively overcome the defect that exists among the prior art.

In order to achieve the purpose, the utility model provides an style gas jet mixer, including spraying and mixing integrated body, a plurality of sprayers, cross wing mixing portion and vortex portion, spraying and mixing integrated body is the drum structure substantially, a plurality of sprayers set up in the upper portion of spraying and mixing integrated body, a plurality of sprayers are used for spraying the gas to spraying and mixing integrated body, cross wing mixing portion sets up in the middle part of spraying and mixing integrated body inside, vortex portion sets up in the end of spraying and mixing integrated body inside, wherein the air gets into and mixes the gas that a plurality of sprayers sprayed from the end of spraying and mixing integrated body after, carry out intensive mixing through cross mixing wing portion earlier, discharge from the end in addition of spraying and mixing integrated body after the secondary mixing of vortex portion again.

In , the cross wing mixing part adopts two oblate cylinders which intersect orthogonally to form a cross structure.

, each of the oblate cylinders has a cross-sectional area with a large end, with a small oblate, the large end of the oblate being oriented in the direction of air entry.

In a preferred embodiment , the mixing portion of the cruciform airfoil has a hollow oblate cylinder with a plurality of small holes, the interior of the oblate cylinder is communicated with an injector, and part of the fuel gas ejected from the injector passes through the interior of the oblate cylinder and then is ejected from the small holes.

in a preferred embodiment, the spoiler includes an outer ring body coaxially disposed with the jet and mixing manifold at an end thereof, an inner ring body coaxially disposed with the outer ring body at a center thereof, and a plurality of fan-shaped spoilers uniformly distributed between the outer ring body and the inner ring body, the plurality of fan-shaped spoilers having a curved surface.

In , the gas injection mixer further includes a sensor disposed on the injection and mixing manifold for sensing a pressure or temperature within the injection and mixing manifold.

In the preferred embodiment, the body gas injection mixer further includes a flange-type inlet fitting, the end of which communicates with the plurality of injectors, and the end of which is adapted to be connected to a source of gas.

, the injection and mixing manifold has inlet and outlet flanges at each end.

Compared with the prior art, the utility model discloses a style gas jet mixer has following beneficial effect because increased the spoiler behind gas and air mixing, reaches the effect of turbulent flow mixing again, effectively solves high-power gas engine middling pressure back gas and air mixing homogeneity problem of admitting air, and the gas is admitted air and is connected to change flange joint into by threaded connection and installs and remove safer more convenient simultaneously.

Drawings

Fig. 1 is a schematic structural view of a -type gas injection mixer according to an embodiment of the related art.

Fig. 2 is a schematic right view of a split gas injection mixer according to an embodiment of the present invention .

Fig. 3 is a left side schematic view of a split gas injection mixer according to an embodiment of the present invention .

Fig. 4 is a schematic structural view of a spoiler portion of a type gas injection mixer according to an embodiment of the present invention .

Fig. 5 is a schematic front view of a cross-wing mixing section of a body type gas injection mixer according to an embodiment of the present invention .

Fig. 6 is a schematic side view of a cross-wing mixing section of a body gas injection mixer in accordance with an embodiment of the present invention .

Fig. 7 is a schematic front view of a split gas injection mixer according to an embodiment of the present invention .

Description of the main reference numerals:

1-upper air rail, 2-ejector, 3-lower air rail and mixer integrated body, 4-pressure temperature sensor, 5-air inlet joint, 6-mixer part, 7-ejector, 8-injection and mixing integrated body, 9-sensor, 10-flange type air inlet joint, 11-spoiler part, 1101-fan-shaped spoiler, 12-cross wing mixing part and 1201-small hole.

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 by the following detailed description.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

As shown in fig. 2 to 3 and 7, fig. 2 is a schematic diagram of a right side view of a type gas injection mixer according to an embodiment of the present invention , fig. 3 is a schematic diagram of a left side view of a type gas injection mixer according to an embodiment of the present invention , fig. 7 is a schematic diagram of a main view of a type gas injection mixer according to an embodiment of the present invention , and kinds of type gas injection mixers according to a preferred embodiment of the present invention include an injection and mixing integrated body 8, a plurality of injectors 7, a cross-wing mixing portion 12, and a turbulent portion 11.

the integrated body 8 is a cylinder with an inlet flange and an outlet flange for connecting with the corresponding parts, the upper part of the integrated body 8 is provided with a plurality of injectors 7, the inner wall of the integrated body 8 has a plurality of injection holes connected with the injectors 7 for injecting gas to the integrated body 8, the end of the flange type inlet joint 10 is connected with the injectors 7, and the end is connected with the gas source.

As shown in fig. 4, fig. 4 is a schematic structural diagram of a spoiler portion of a split gas injection mixer according to an embodiment of the present invention, in embodiments, the spoiler portion 11 is disposed at a end inside the injection and mixing integrated body 8, the spoiler portion 11 includes an outer ring body, an inner ring body, and a plurality of segmental spoilers 1101, the outer ring body and the injection and mixing integrated body 8 are coaxially disposed at a end inside the injection and mixing integrated body 8, the inner ring body and the outer ring body are coaxially disposed at a center of the outer ring body, the plurality of segmental spoilers 1101 are uniformly distributed between the outer ring body and the inner ring body, and the plurality of segmental spoilers 1101 have curved surfaces, which are more favorable for sufficiently and uniformly mixing of the mixer.

As shown in fig. 5 to 6, fig. 5 is a schematic front view of a cross wing mixing part of a type gas injection mixer according to an embodiment of the present invention , fig. 6 is a schematic side view of a cross wing mixing part of a type gas injection mixer according to an embodiment of the present invention , in embodiments, the cross wing mixing part 12 is disposed in the middle inside an injection and mixing integrated body 8, the cross wing mixing part 12 is a cross structure formed by two oblate cylinders intersecting orthogonally, each oblate cylinder has a cross section of end, a large end and a small end end (somewhat similar to the cross section of an airplane wing), the large end of the oblate cylinder faces the air inlet direction, the oblate cylinder of the cross wing mixing part is a hollow structure, a plurality of small holes are formed in the oblate cylinder, the inside of the oblate cylinder is communicated with an injector, a part of gas sprayed out from the small holes 1201 inside the oblate cylinder, and a mixed gas of air and cross gas can be mixed more fully after passing through the wing mixing part 12.

In , the gas jet mixer further includes a sensor disposed on the jet and mixing manifold 8 for sensing the pressure or temperature inside the jet and mixing manifold 8.

In practical operation, air enters from the end of the injection and mixing integrated body 8 and is mixed with fuel gas injected by the plurality of injectors 7, then the air is fully mixed through the cross wing mixing part 12, and then the air is secondarily mixed through the turbulence part 11 and then is discharged from the other end of the injection and mixing integrated body 8, so that the mixing uniformity degree of the mixer can be ensured as much as possible.

To sum up, the style gas jet mixer of the utility model has the advantages of higher mixing uniformity of gas and air, more stable engine performance, simple structure, easy assembly and disassembly, high product reliability, reduced maintenance and service cost, low manufacturing cost, safety and reduced leakage risk of gas joints.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims

1, a style gas jet mixer, characterized by, including:

a jetting and mixing manifold having a substantially cylindrical configuration;

a plurality of injectors provided at an upper portion of the injection and mixing manifold, the plurality of injectors being configured to inject gas into the injection and mixing manifold;

the cross-shaped wing mixing part is arranged in the middle of the inside of the injection and mixing integrated body; and

a turbulent flow part arranged at the end inside the injection and mixing integration body;

the air enters from the end of the injection and mixing integrated body and is mixed with the fuel gas injected by the injectors, then the air is fully mixed by the cross wing mixing part, and then the air is secondarily mixed by the turbulence part and then is discharged from the other end of the injection and mixing integrated body.

2. The -body type gas injection mixer of claim 1, wherein the cross-shaped wing mixing part is a cross structure formed by two oblate cylinders intersecting orthogonally.

3. The -body type gas injection mixer of claim 2, wherein each of the oblate cylinders has a cross-sectional area of a circular oblate with ends and ends, the large ends of the oblate cylinders facing in the air intake direction.

4. The type gas jet mixer of claim 3, wherein the oblate column of the cross-shaped wing mixing part is hollow and has a plurality of small holes, the interior of the oblate column is communicated with the injector, and part of the gas jetted from the injector passes through the interior of the oblate column and then is jetted from the small holes.

5. The -style gas injection mixer of claim 1, wherein the spoiler comprises:

an outer ring body disposed at an end inside the jetting and mixing manifold coaxially with the jetting and mixing manifold;

an inner ring body disposed at a center of the outer ring body coaxially with the outer ring body; and

a plurality of fan-shaped spoilers evenly distributed between the outer ring body and the inner ring body, the plurality of fan-shaped spoilers having a curved surface.

6. The -style gas injection mixer of claim 1, further comprising a sensor disposed on the injection and mixing manifold for sensing a pressure or temperature inside the injection and mixing manifold.

7. The body type gas injection mixer of claim 1, further comprising a flange type gas inlet connector, wherein end of the flange type gas inlet connector is communicated with the plurality of injectors, and end of the flange type gas inlet connector is used for connecting a gas source.

8. The -style gas injection mixer of claim 7, wherein the injection and mixing manifold has an inlet end flange and an outlet end flange at each end.