Mixer and gas engine

Abstract

The utility model provides a mixer and a gas engine, and relates to the technical field of gas mixing. The mixer comprises an inner core, a shell and at least one flow guide pipe; a mixing cavity is formed in the inner core; the mixing cavity is provided with an air inlet and an air outlet which are communicated; the outer side of the inner core is sleeved with the shell. A flowing cavity is formed in the shell; the flow guide pipe is arranged in the mixing cavity; at least one end of the flow guide pipe penetrates through the inner core; the interior of the diversion pipe communicates with the flowing cavity; an air inlet hole is formed in the flow guide pipe; the air inlet communicates with the interior of the diversion pipe and the mixing cavity. The gas engine includes a mixer. According to the mixer, combustion-supporting gas and combustible gas can be mixed in the mixing cavity.

Description

Technical Field

[0001] The present application relates to the technical field of gas mixing, and in particular to a mixer and a gas engine. Background Art

[0002] The mixer is an important component of a gas engine. The function of the mixer is to mix the combustible gas and the combustion-supporting gas in a certain proportion and send them into the combustion chamber of the gas engine for combustion.

[0003] When the existing mixer mixes the combustible gas and the combustion-supporting gas, a separation interface is likely to exist between the combustible gas and the combustion-supporting gas, resulting in uneven gas mixing, which in turn affects the working stability of the gas engine. Utility Model Content

[0004] In order to overcome the deficiencies in the prior art, the present application provides a mixer and a gas engine.

[0005] This application provides the following technical solutions:

[0006] In a first aspect, the present application provides a mixer, comprising:

[0007] An inner core, wherein the inner core has a mixing chamber; the mixing chamber has an air inlet and an air outlet that are connected;

[0008] An outer shell, the outer shell is sleeved on the outer side of the inner core; the inner part of the outer shell has a flow cavity;

[0009] At least one flow guide tube is arranged in the mixing chamber; at least one end of the flow guide tube is passed through the inner core; the interior of the flow guide tube is connected with the flow chamber; an air inlet is opened on the flow guide tube; the air inlet connects the interior of the flow guide tube with the mixing chamber.

[0010] In a possible implementation, the mixer includes a first flow guide tube and a second flow guide tube; the first flow guide tube is provided with a first air inlet hole; the second flow guide tube is provided with a second air inlet hole; and the extension direction of the first flow guide tube is perpendicular to the extension direction of the second flow guide tube.

[0011] In a possible implementation manner, a plurality of the air inlet holes are formed on the air guide tube; and the plurality of the air inlet holes are evenly arranged along the extension direction of the air guide tube.

[0012] In a possible implementation manner, a plurality of the air inlet holes are formed on the air guide tube; and the plurality of the air inlet holes are evenly arranged around the circumference of the air guide tube.

[0013] In a possible implementation manner, a plurality of through holes are formed on the inner core; the through holes are used to connect the flow chamber and the mixing chamber.

[0014] In a possible implementation manner, the plurality of through holes are evenly arranged around the circumference of the inner core.

[0015] In a possible implementation manner, the mixer further includes a sealing member; a sealing groove is formed on a side of the inner core close to the outer shell; and the sealing member is disposed in the sealing groove.

[0016] In a possible implementation manner, the sealing element is an O-ring; and the sealing groove is an O-groove.

[0017] In a possible embodiment, the mixer also includes a first connecting member and a second connecting member; the first connecting member is connected to the air inlet; the interior of the first connecting member is connected to the mixing chamber; the second connecting member is connected to the side of the outer shell away from the inner core; the interior of the second connecting member is connected to the flow chamber.

[0018] In a second aspect, the present application also provides a gas engine comprising the above-mentioned mixer.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The mixer provided by the present application is provided with at least one flow guide tube in the mixing chamber of the inner core. When the combustion-supporting gas flows into the mixing chamber through the air inlet, the combustible gas flows into the flow guide tube through the flow chamber of the outer shell, and then flows into the mixing chamber through the air inlet hole provided on the flow guide tube, the combustion-supporting gas and the combustible gas can be mixed in the mixing chamber. The method of mixing the combustion-supporting gas and the combustible gas by the mixer of the present application can prevent the existence of a separation interface between the combustible gas and the combustion-supporting gas, thereby improving the uniformity of the gas after mixing.

[0021] In order to make the above-mentioned objects, features and advantages of the present application more obvious and understandable, preferred embodiments are given below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the three-dimensional structure of a mixer according to an embodiment of the present application is shown;

[0024] Figure 2 An internal schematic diagram of a mixer according to an embodiment of the present application is shown;

[0025] Figure 3 A partial structural schematic diagram of a mixer according to an embodiment of the present application is shown.

[0026] Description of main component symbols:

[0027] 100-mixer; 110-inner core; 111-mixing chamber; 112-through hole; 113-sealing groove; 120-first flow guide tube; 121-first air inlet hole; 130-second flow guide tube; 131-second air inlet hole; 140-housing; 141-flow chamber; 142-connecting chamber; 150-sealing member; 160-first connecting member; 170-second connecting member. DETAILED DESCRIPTION

[0028] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0029] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] Embodiment 1

[0034] See also Figures 1 to 3 In one embodiment of the present application, a mixer 100 is provided. The mixer 100 is used in a gas engine. The mixer 100 is used to mix the combustible gas and the combustion-supporting gas uniformly.

[0035] The combustible gas in this embodiment can be natural gas, liquefied petroleum gas, hydrogen, etc. The combustion-supporting gas can be air, oxygen, etc.

[0036] See also Figure 1 The mixer 100 includes an inner core 110, an outer shell 140 and at least one flow guide tube.

[0037] The inner core 110 has a mixing chamber 111 therein; the mixing chamber 111 has an air inlet and an air outlet that are connected to each other.

[0038] The air inlet can be connected to an external combustion-supporting gas pipe, so that the combustion-supporting gas flows into the mixing chamber 111 through the air inlet. The air outlet is communicated with the combustion chamber of the gas engine.

[0039] The outer shell 140 is sleeved on the outer side of the inner core 110, and a flow cavity 141 is formed inside the outer shell 140. The flow cavity 141 can be connected to a combustible gas pipe from the outside.

[0040] The guide tube is arranged in the mixing chamber 111; at least one end of the guide tube passes through the inner core 110; the interior of the guide tube is connected with the flow chamber 141; an air inlet is opened on the guide tube; the air inlet connects the interior of the guide tube with the mixing chamber 111.

[0041] The combustible gas in the combustible gas pipe can flow into the guide tube through the flow cavity 141, and then flow into the mixing cavity 111 through the air inlet hole, so that the combustible gas and the combustion-supporting gas are mixed in the mixing cavity 111. The mixed gas can flow into the combustion chamber of the gas engine through the air outlet.

[0042] The mixer 100 of this embodiment provides at least one flow guide tube in the mixing chamber 111 of the inner core 110. When the combustion-supporting gas flows into the mixing chamber 111 through the air inlet, the combustible gas flows into the flow guide tube through the flow chamber 141 of the outer shell 140, and then flows into the mixing chamber 111 through the air inlet hole provided on the flow guide tube, the combustion-supporting gas and the combustible gas can be mixed in the mixing chamber 111. The mixer 100 of this embodiment mixes the combustion-supporting gas and the combustible gas in a manner that prevents the existence of a separation interface between the combustible gas and the combustion-supporting gas, thereby improving the uniformity of the gas mixture.

[0043] In some embodiments, the mixer 100 includes a guide tube; one end of the guide tube is passed through the inner core 110, and the combustible gas in the flow cavity 141 can flow into the interior of the guide tube through the end of the guide tube connected to the inner core 110.

[0044] In another embodiment, both ends of the flow guide tube are penetrated through the inner core 110. The combustible gas in the flow cavity 141 can flow into the interior of the flow guide tube through both ends of the flow guide tube.

[0045] In some embodiments, see Figures 1 to 3 The mixer 100 includes a first flow guide pipe 120 and a second flow guide pipe 130 ; the first flow guide pipe 120 is provided with a first air inlet hole 121 ; the second flow guide pipe 130 is provided with a second air inlet hole 131 .

[0046] The first air inlet 121 is used to connect the interior of the first flow guide tube 120 with the mixing chamber 111. The second air inlet 131 is used to connect the interior of the second flow guide tube 130 with the mixing chamber 111. The combustible gas in the flow chamber 141 can flow into the first flow guide tube 120 and the second flow guide tube 130 respectively.

[0047] In some embodiments, the extension direction of the first flow guide tube 120 is perpendicular to the extension direction of the second flow guide tube 130 to avoid uneven distribution of the combustible gas when it enters the mixing chamber 111 .

[0048] In some embodiments, there is a certain distance between the first flow guiding tube 120 and the second flow guiding tube 130 .

[0049] In another embodiment, the first flow guiding pipe 120 is disposed through the second flow guiding pipe 130 .

[0050] Exemplarily, the first flow guiding pipe 120 and the second flow guiding pipe 130 are both square pipes.

[0051] Exemplarily, the first flow guide pipe 120 and the second flow guide pipe 130 are both fixedly connected to the inner wall of the mixing chamber 111 by welding.

[0052] In some embodiments, see Figure 2 and Figure 3 The first flow guide pipe 120 is provided with a plurality of the first air inlet holes 121 to increase the air intake amount of the combustible gas entering the mixing chamber 111 per unit time.

[0053] In some embodiments, the plurality of first air inlet holes 121 are evenly arranged along the extension direction of the first flow guide tube 120 to improve the uniformity of the combustible gas entering the mixing chamber 111 and prevent the combustible gas from being unevenly distributed in the mixing chamber 111 .

[0054] In some embodiments, the plurality of first air inlet holes 121 are evenly arranged around the first flow guide tube 120 , which can also improve the uniformity of the combustible gas entering the mixing chamber 111 .

[0055] In some embodiments, see Figure 2 and Figure 3 The second air guide pipe 130 is provided with a plurality of second air inlet holes 131 .

[0056] In some embodiments, the plurality of second air inlet holes 131 are evenly arranged along the extension direction of the second air guide tube 130 . It is understandable that in other embodiments, the plurality of second air inlet holes 131 may also be evenly arranged around the circumference of the second air guide tube 130 .

[0057] Exemplarily, the first air inlet hole 121 and the second air inlet hole 131 are both circular holes and have the same diameter.

[0058] See also Figures 1 to 3 The inner core 110 is roughly cylindrical in shape; the outer shell 140 is sleeved on the outer side of the inner core 110; the flow cavity 141 is annular in shape, so that the combustible gas flows into the first flow conduit 120 from both ends of the first flow conduit 120, or flows into the second flow conduit 130 from both ends of the second flow conduit 130.

[0059] In some implementations, see Figures 1 to 3 , a plurality of through holes 112 are provided on the inner core 110; the through holes 112 are used to connect the flow chamber 141 with the mixing chamber 111; the combustible gas in the mixer 100 can also flow into the mixing chamber 111 through the through holes 112 to further improve the uniformity of the distribution of the combustible gas in the mixing chamber 111.

[0060] Furthermore, the plurality of through holes 112 are evenly arranged around the circumference of the inner core 110 .

[0061] In some embodiments, see Figure 2 and Figure 3 The mixer 100 further includes a sealing member 150 . A sealing groove 113 is formed on a side of the inner core 110 close to the outer shell 140 . The sealing member 150 is disposed in the sealing groove 113 .

[0062] The sealing member 150 is used for sealing connection between the inner core 110 and the outer shell 140 to prevent gas leakage.

[0063] Exemplarily, the sealing member 150 is an O-ring; and the sealing groove 113 is an O-groove.

[0064] In some embodiments, the mixer 100 includes a plurality of the sealing members 150 , a plurality of the sealing grooves 113 are formed on the inner core 110 , and the plurality of the sealing members 150 are respectively disposed in corresponding sealing grooves 113 .

[0065] In some embodiments, see Figure 1 and Figure 2 The mixer 100 further includes a first connecting member 160 and a second connecting member 170 .

[0066] The first connecting member 160 is used to connect the air inlet with an external combustion-supporting gas pipe. The interior of the first connecting member 160 is communicated with the mixing chamber 111 so that the combustion-supporting gas in the combustion-supporting gas pipe can enter the mixing chamber 111.

[0067] The second connecting member 170 is used to connect the outer shell 140 with an external combustible gas pipe. The second connecting member 170 is disposed on a side of the outer shell 140 away from the inner core 110 ; the interior of the second connecting member 170 is communicated with the flow cavity 141 .

[0068] Specifically, a connecting cavity 142 is further provided on the housing 140 , and the connecting cavity 142 is used to connect the flow cavity 141 with the interior of the second connecting member 170 .

[0069] In some embodiments, the first connecting member 160 is connected to the air inlet of the inner core 110 by bolt connection. However, it is not limited thereto, and it is understandable that in other embodiments, the first connecting member 160 can also be connected to the air inlet of the inner core 110 by flange connection.

[0070] In some embodiments, the housing 140 is provided with a protrusion; the connection cavity 142 is provided in the protrusion. The second connection member 170 can be connected to the end of the protrusion away from the inner core 110 by bolt connection or flange connection.

[0071] Embodiment 2

[0072] The present application also provides a gas engine, comprising the mixer 100 described above.

[0073] The gas engine provided in this embodiment has the mixer 100 provided in any of the above embodiments, and therefore has all the beneficial effects of the mixer 100 provided in any of the above embodiments, which will not be described in detail here.

[0074] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0075] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A mixer, characterized in that: include: An inner core, wherein the inner core has a mixing chamber; the mixing chamber has an air inlet and an air outlet that are connected; An outer shell, the outer shell is sleeved on the outer side of the inner core; the inner part of the outer shell has a flow cavity; At least one flow guide tube is arranged in the mixing chamber; at least one end of the flow guide tube is passed through the inner core; the interior of the flow guide tube is connected with the flow chamber; an air inlet is opened on the flow guide tube; the air inlet connects the interior of the flow guide tube with the mixing chamber.

2. The mixer according to claim 1, characterized in that The mixer comprises a first flow guide pipe and a second flow guide pipe; the first flow guide pipe is provided with a first air inlet hole; the second flow guide pipe is provided with a second air inlet hole; the extension direction of the first flow guide pipe is perpendicular to the extension direction of the second flow guide pipe.

3. The mixer according to claim 1, characterized in that The guide tube is provided with a plurality of air inlet holes; the plurality of air inlet holes are evenly arranged along the extension direction of the guide tube.

4. The mixer according to claim 1, characterized in that The guide tube is provided with a plurality of air inlet holes; the plurality of air inlet holes are evenly arranged around the circumference of the guide tube.

5. The mixer according to claim 1, characterized in that The inner core is provided with a plurality of through holes, and the through holes are used to connect the flow cavity and the mixing cavity.

6. The mixer according to claim 5, characterized in that The plurality of through holes are evenly arranged around the circumference of the inner core.

7. The mixer according to claim 1, characterized in that The mixer further comprises a sealing member; a sealing groove is provided on one side of the inner core close to the outer shell; and the sealing member is arranged in the sealing groove.

8. The mixer according to claim 7, characterized in that The sealing element is an O-type sealing ring; the sealing groove is an O-type groove.

9. The mixer according to claim 1, characterized in that The mixer also includes a first connecting member and a second connecting member; the first connecting member is connected to the air inlet; the interior of the first connecting member is connected to the mixing chamber; the second connecting member is connected to a side of the outer shell away from the inner core; the interior of the second connecting member is connected to the flow chamber.

10. A gas engine, characterized in that: A mixer comprising the mixer according to any one of claims 1 to 9.

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