Mixer and gas engine
By designing axial and radial channel systems in the mixer and using blocking partial flow to remix gas, the problem of uneven gas mixing in the gas engine is solved, and more uniform gas mixing is achieved, thereby improving the working performance of the engine.
Patent Information
- Application Number
- CN202420239768.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-31
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-01-31
AI Technical Summary
The mixers in existing gas engines are prone to gas flow disorders when the combustion-assisted gas is mixed with combustible gases, resulting in uneven gas mixing and affecting the normal operation of the engine.
A mixer is designed, and its core has a channel system in the axial and radial directions. The combustion-assisted gas passes through the axial channel, and the combustible gas passes through the radial channel, and the blocking part prevents the combustion-assisted gas from entering the radial channel, thereby realizing the diversion and remixing of the gas and improving the uniformity of the mixture.
Diversion through different runners and then mixing, effectively avoiding gas disorder problems, improving the uniformity of the mixed gas, and thus improving the working performance of the gas engine.
Smart Images
Figure CN222772293U_ABST
Abstract
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 part of the gas engine. The mixer can evenly mix the combustion-supporting gas with the combustible gas to ensure the normal combustion reaction. At present, due to the high pressure of the combustible gas when it enters the mixed gas, the gas flow is easily disturbed when the combustible gas and the combustion-supporting gas are mixed in the mixer, resulting in uneven gas mixing, which affects the normal operation of the gas engine. Utility Model Content
[0003] In order to overcome the deficiencies in the prior art, the present application provides a mixer and a gas engine.
[0004] This application provides the following technical solutions:
[0005] In a first aspect, the present application provides a mixer, comprising:
[0006] The core body has a first channel and a second channel; the first channel is provided with a first air inlet and a first air outlet at two ends along the axial direction of the core body; the second channel is provided with a second air inlet at one end along the radial direction of the core body; the second channel is provided with an opening and a second air outlet at two ends along the axial direction of the core body;
[0007] A panel is connected to one end of the core; an air inlet hole connected to the first air inlet is opened on the panel; the panel has a blocking part; the blocking part is used to block the opening.
[0008] In a possible embodiment, the core body includes a plurality of the first channels and a plurality of the second channels; the plurality of the first channels and the plurality of the second channels are arranged around the circumference of the core body; a plurality of the air inlet holes are opened on the panel; and the plurality of the air inlet holes are respectively connected to the corresponding first air inlet ports.
[0009] In a possible implementation, the first channel is disposed between two adjacent second channels; the panel has a plurality of blocking portions; and the air inlet is disposed between two adjacent blocking portions.
[0010] In a possible embodiment, the core body includes an outer shell, an axis body and a plurality of partitions; the axis body is disposed in the outer shell; a plurality of partitions are circumferentially spaced around the axis body; one end of the partition is connected to the axis body, and an end of the partition away from the axis body is connected to the inner wall of the outer shell.
[0011] In a possible implementation manner, the shell, the shaft body, and the plurality of partitions are integrally formed.
[0012] In a possible implementation, the mixer further includes a flow guide; the flow guide is disposed on a side of the panel away from the core; one end of the flow guide passes through the panel and the core, and is connected to the core.
[0013] In a possible implementation, the guide member includes a guide portion and a connecting portion connected to each other; the guide portion is disposed on a side of the panel away from the core; and the connecting portion passes through the panel and the core and is connected to the core.
[0014] In a possible implementation manner, a diameter of the guide portion at an end close to the connecting portion gradually decreases toward a diameter of the guide portion at an end away from the connecting portion.
[0015] In a possible implementation manner, a fixing groove is provided on a side of the panel close to the core body; and one end of the core body is interference fit with an inner wall of the fixing groove.
[0016] In a second aspect, the present application also provides a gas engine comprising the above-mentioned mixer.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] The mixer provided by the present application is such that the combustion-supporting gas can enter the first channel along the axial direction of the core through the air inlet and the first air inlet in sequence, and then be discharged outward from the first air outlet. The combustible gas can enter the second channel from the second air inlet along the radial direction of the core, and then be discharged outward from the second air outlet. The blocking portion on the panel can block the opening on the second channel to prevent the combustion-supporting gas from entering the second channel. The combustion-supporting gas discharged from the first air outlet and the combustible gas discharged from the second air outlet can be mixed at the end of the core away from the panel. Since the combustible gas turns when entering the second channel, and the combustion-supporting gas and the combustible gas are diverted through different flow channels and then mixed, the occurrence of gas turbulence when the combustion-supporting gas and the combustible gas are mixed is effectively avoided, thereby improving the uniformity of the mixed gas.
[0019] 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
[0020] 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.
[0021] Figure 1 A schematic diagram of the three-dimensional structure of a mixer according to an embodiment of the present application is shown;
[0022] Figure 2 A schematic diagram of the three-dimensional structure of a core body according to an embodiment of the present application is shown;
[0023] Figure 3 A schematic diagram of the three-dimensional structure of the core body of an embodiment of the present application from another angle is shown;
[0024] Figure 4 A schematic diagram of the three-dimensional structure of a panel according to an embodiment of the present application is shown;
[0025] Figure 5 A schematic diagram of the three-dimensional structure of a flow guide member according to an embodiment of the present application is shown.
[0026] Description of main component symbols:
[0027] 100-mixer; 110-core; 111-first air inlet; 112-first air outlet; 113-second air inlet; 114-second air outlet; 115-opening; 116-partition; 117-axis; 1171-fixing hole; 118-housing; 120-panel; 121-air inlet; 122-blocking part; 123-fixing groove; 130-guide member; 131-guide part; 132-connecting part. 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 4 In one embodiment of the present application, a mixer 100 is provided. The mixer 100 is used in a gas engine, and the mixer 100 can evenly mix the combustion-supporting gas and the combustible gas.
[0035] The combustion-supporting gas in this embodiment can be air, oxygen, etc. The combustible gas can be natural gas, liquefied petroleum gas, etc.
[0036] See also Figures 1 to 3 The mixer 100 includes a core 110 and a panel 120 .
[0037] The core 110 has a first channel and a second channel. The extension directions of the first channel and the second channel are both parallel to the axial direction of the core 110 .
[0038] The first channel has a first air inlet 111 and a first air outlet 112 respectively formed at two ends of the first channel along the axial direction of the core body 110 .
[0039] A second air inlet 113 is formed at one end of the second channel along the radial direction of the core 110 ; an opening 115 and a second air outlet 114 are formed at two ends of the second channel along the axial direction of the core 110 .
[0040] The panel 120 is connected to one end of the core 110 close to the first air inlet 111. The panel 120 is provided with an air inlet hole 121 communicating with the first air inlet 111; the panel 120 also has a blocking portion 122.
[0041] The combustion-supporting gas can enter the first channel along the axial direction of the core 110 through the air inlet hole 121 and the first air inlet 111 in sequence, and then be discharged outward from the first air outlet 112 .
[0042] The blocking portion 122 can block the opening 115 to prevent the combustion-supporting gas from entering the second channel.
[0043] The combustible gas can enter the second channel from the second gas inlet 113 along the radial direction of the core 110 , and then be discharged outward from the second gas outlet 114 .
[0044] The combustion-supporting gas discharged from the first gas outlet 112 and the combustible gas discharged from the second gas outlet 114 can be mixed at the end of the core 110 away from the panel 120. Since the combustible gas is turned when entering the second channel, and the combustion-supporting gas and the combustible gas are divided through different flow channels and then mixed, the occurrence of gas turbulence when the combustion-supporting gas and the combustible gas are mixed is effectively avoided, thereby improving the uniformity of the mixed gas.
[0045] In some embodiments, see Figure 2 and Figure 3The core body 110 includes an outer shell 118, a shaft body 117 and a plurality of partitions 116; the shaft body 117 is disposed in the outer shell 118; a plurality of partitions 116 are arranged at circumferential intervals around the shaft body 117; one end of the partition 116 is connected to the shaft body 117, and the end of the partition 116 away from the shaft body 117 is connected to the inner wall of the outer shell 118.
[0046] After the shaft 117 , the housing 118 and the two adjacent partitions 116 are combined, a first channel or a second channel can be formed inside.
[0047] In some embodiments, the core 110 includes a plurality of the first channels and a plurality of the second channels to improve the intake efficiency of the combustion-supporting gas and the combustible gas.
[0048] A plurality of the first channels and a plurality of the second channels are arranged around the circumference of the core 110 ; a plurality of the air inlet holes 121 are opened on the panel 120 ; and the plurality of the air inlet holes 121 are respectively connected to the corresponding first air inlet ports 111 .
[0049] Furthermore, the first channel is arranged between two adjacent second channels, that is, the first channel and the second channel are alternately arranged around the circumference of the core 110 to improve the uniformity of mixing of the combustible gas and the combustion-supporting gas at one end of the core 110 away from the panel 120.
[0050] See also Figure 4 The panel 120 has a plurality of blocking portions 122 ; the air inlet 121 is disposed between two adjacent blocking portions 122 .
[0051] In some embodiments, the panel 120 has a fixing groove 123 on one side close to the core 110 ; one end of the core 110 having the first air inlet 111 is disposed in the fixing groove 123 , so that the panel 120 is connected to the core 110 .
[0052] Exemplarily, the outer wall of the shell 118 is interference fit with the inner wall of the fixing groove 123 , so that one end of the core 110 is fixed in the fixing groove 123 , thereby fixing the core 110 and the panel 120 in fixed connection.
[0053] In some embodiments, the housing 118 , the shaft 117 , and the plurality of partitions 116 are integrally formed.
[0054] At present, the shaft body, shell and partition in the existing mixer core are fixedly connected by interference fit. For example, a plurality of first positioning grooves are opened on the outer surface of the shaft body, and a plurality of second positioning grooves are opened on the inner surface of the shell; one end of the partition is interference fit with the inner wall of the first positioning groove, and the end of the partition away from the shaft body is interference fit with the inner wall of the second positioning groove, so that the shaft body, shell and multiple partitions are combined together. In order to improve the firmness of the mixer core, it is also necessary to perform spot welding reinforcement at the connection between the partition and the shaft body, and at the connection between the partition and the shell.
[0055] The above-mentioned assembly method not only takes a long time to assemble, but also requires high processing accuracy of each component, which increases production costs.
[0056] The present application fixes the shell 118, the shaft 117 and the plurality of partitions 116 together by an integral molding method, which reduces the assembly steps and improves the firmness of the core 110. It does not need to be reinforced by spot welding, thereby improving the aesthetics of the core 110.
[0057] Exemplarily, the core 110 is integrally formed by an injection molding process.
[0058] In some embodiments, see Figure 2 and Figure 3 The shape of the first air inlet 111 is the same as that of the first air outlet 112; the shape of the opening 115 is the same as that of the second air outlet 114, so as to ensure that the combustion-supporting gas flows smoothly in the first channel and the combustible gas flows smoothly in the second channel.
[0059] The operator can adjust the area of the first air inlet 111 or the area of the second air inlet 113 as needed to adjust the mixing ratio of the combustion-supporting gas and the combustible gas.
[0060] Embodiment 2
[0061] See also Figures 1 to 5 This embodiment provides a mixer 100. This embodiment is an improvement made on the technical basis of the above-mentioned embodiment 1. Compared with the above-mentioned embodiment 1, the difference is that:
[0062] In some embodiments, the mixer 100 further includes a guide member 130 ; the guide member 130 is disposed on a side of the panel 120 away from the core 110 ; one end of the guide member 130 passes through the panel 120 and the core 110 , and is connected to the core 110 .
[0063] When the combustion-supporting gas moves toward the panel 120 along the axial direction of the core 110 , the guide member 130 can guide the combustion-supporting gas into the gas inlet hole 121 to avoid gas turbulence caused by the combustion-supporting gas impacting the panel 120 .
[0064] See also Figure 1 , Figure 2 and Figure 5 The guide member 130 includes a guide portion 131 and a connecting portion 132 connected to each other; the guide portion 131 is disposed on a side of the panel 120 away from the core 110; the connecting portion 132 passes through the panel 120 and the core 110, and is connected to the core 110.
[0065] The guide portion 131 is used to guide the combustion-supporting gas, and the connecting portion 132 is used to connect the core body 110 , thereby connecting the guide member 130 to the core body 110 .
[0066] Exemplarily, the diameter of the guide portion 131 at one end close to the connecting portion 132 gradually decreases toward the diameter of the guide portion 131 at one end away from the connecting portion 132 , so that the combustion-supporting gas moving toward the panel 120 along the axial direction of the core 110 moves into the air inlet hole 121 .
[0067] Exemplarily, a fixing hole 1171 is formed on the shaft body 117 ; one end of the connecting portion 132 away from the guide portion 131 is interference fit with the inner wall of the fixing hole 1171 , so that the connecting portion 132 is fixed in the fixing hole 1171 .
[0068] Embodiment 3
[0069] The present application also provides a gas engine, comprising the mixer 100 described above.
[0070] 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.
[0071] 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.
[0072] 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: a core having a first channel and a second channel; The first channel is provided with a first air inlet and a first air outlet at both ends along the axial direction of the core; the second channel is provided with a second air inlet at one end along the radial direction of the core; the second channel is provided with an opening and a second air outlet at both ends along the axial direction of the core; A panel connected to one end of the core; the panel is provided with an air inlet hole connected to the first air inlet; the panel has a blocking portion; the blocking portion is used to block the opening; The core body comprises a shell, a shaft body and a plurality of partitions; The shaft body is arranged in the shell; a plurality of partitions are spaced around the circumference of the shaft body; one end of the partition is connected to the shaft body, and one end of the partition away from the shaft body is connected to the inner wall of the shell; The housing, the shaft and the plurality of partitions are integrally formed; The shape of the first air inlet is the same as that of the first air outlet; the shape of the opening is the same as that of the second air outlet, so as to ensure that the combustion-supporting gas flows smoothly in the first channel and the combustible gas flows smoothly in the second channel; The mixer further comprises a flow guide; the flow guide is arranged on a side of the panel away from the core; one end of the flow guide passes through the panel and the core and is connected to the core; The flow guide comprises a flow guide portion and a connecting portion connected to each other; the flow guide portion is arranged on a side of the panel away from the core; the connecting portion passes through the panel and the core and is connected to the core; A fixing hole is provided on the shaft body; an end of the connecting portion away from the guide portion is interference-fitted with an inner wall of the fixing hole so that the connecting portion is fixed in the fixing hole.
2. The mixer according to claim 1, characterized in that The core body includes a plurality of the first channels and a plurality of the second channels; the plurality of the first channels and the plurality of the second channels are arranged around the circumference of the core body; a plurality of the air inlet holes are opened on the panel; the plurality of the air inlet holes are respectively connected to the corresponding first air inlet ports.
3. The mixer according to claim 2, characterized in that The first channel is arranged between two adjacent second channels; the panel has a plurality of blocking parts; and the air inlet is arranged between two adjacent blocking parts.
4. The mixer according to claim 1, characterized in that The diameter of the guide portion at one end close to the connecting portion gradually decreases toward the diameter of the guide portion at one end away from the connecting portion.
5. The mixer according to any one of claims 1 to 4, characterized in that: A fixing groove is provided on one side of the panel close to the core body; one end of the core body is interference fit with the inner wall of the fixing groove.
6. A gas engine, characterized in that: A mixer comprising the mixer described in any one of claims 1 to 5.