Gas proportioning mixer

Abstract

The utility model relates to the technical field of gas mixing, and discloses a gas proportioning mixer which comprises a mixer main body, a main gas pipeline and an auxiliary pipeline, the main gas pipeline and the auxiliary pipeline are respectively communicated with the mixer main body, a middle pipe is arranged in an inner cavity of the mixer main body, and the main gas pipeline is communicated with the middle pipe. A gas inlet hole is formed in the middle pipe, the middle pipe is communicated with an auxiliary gas pipeline through the gas inlet hole, one end, far away from the main gas pipe, of the mixer main body is communicated with a mixing pipe, a plurality of middle pore plates are buckled and connected in the mixing pipe, the plurality of middle pore plates are arranged in a staggered manner, and hole positions on the middle pore plates are staggered; the end, away from the mixer body, of the mixing pipe communicates with a mixing cavity. The gas mixing device disclosed by the utility model can be used for disturbing the flow of gas and effectively ensuring that various gases can be uniformly mixed so as to facilitate subsequent efficient application.

Description

Technical Field

[0001] The utility model relates to the technical field of gas mixing, in particular to a gas proportion mixer. Background Art

[0002] For the mixer in the existing industrial combustion system, the proportional mixer provides accurate gas / air mixing in the combustion system. The proportional mixing device uses the negative pressure generated by the energy of air flow to suck the combustible gas into the mixing chamber, and fully mixes the air and combustible gas in proportion in the mixing chamber. In actual use, the existing gas proportional mixing device simply relies on the flow of gas to achieve the mixing of multiple gases, so there is a situation where the gas is partially stratified and mixed unevenly, which is not conducive to the full application of the mixed gas. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the deficiencies of the prior art, the utility model provides a gas proportion mixer, which solves the problem that the existing gas mixing device has local uneven mixing of the gas to be mixed, thereby reducing the actual application rate of the mixed gas.

[0005] (II) Technical solution

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A gas proportion mixer comprises a mixer body, a main gas pipeline and a secondary pipeline respectively connected to the mixer body, the inner cavity of the mixer body is provided with an intermediate tube, the main gas pipeline is connected to the intermediate tube, an air inlet hole is provided on the intermediate tube and is connected to the secondary gas pipeline through the air inlet hole, the mixer body is connected to a mixing tube at one end away from the main gas pipeline, a plurality of intermediate orifice plates are snap-connected in the mixing tube, the plurality of intermediate orifice plates are staggered with each other and the orifice positions thereon are staggered with each other; the mixing tube is connected to a mixing chamber at one end away from the mixer body.

[0008] Preferably, an electric valve is arranged on the main gas pipeline, and a control valve is provided on the secondary gas pipeline.

[0009] Preferably, a bell mouth is provided at one end of the intermediate tube close to the main gas pipeline, and a reinforcing ring base is fixedly provided on the intermediate tube, and the reinforcing ring base is fixedly connected to the cavity wall of the mixer body.

[0010] Preferably, a snap groove is arranged on the cavity wall of the mixing tube, and a snap protrusion snap-connected with the snap groove is arranged on the middle orifice plate.

[0011] Preferably, the mixing chamber is symmetrically fixedly connected with a plurality of connection bases at the upper and lower ends near the outlet end of the mixing tube, an intermediate shaft is rotatably connected between the two connection bases arranged upper and lower, a sleeve shaft is fixedly connected to the outside of the intermediate shaft, a plurality of blade plates are evenly distributed in an annular shape on the outer circumferential surface of the sleeve shaft, and the airflow passing through the mixing tube drives the blade plates and the sleeve shaft to rotate.

[0012] (III) Beneficial effects

[0013] The utility model has the following beneficial effects:

[0014] The gas proportion mixer can easily introduce gas of a certain pressure into the main gas pipeline, so that when the gas passes through the middle pipe, the gas in the auxiliary gas pipeline can be actively sucked in through the air inlet, and the two gases can be mixed with each other during the flow in the middle pipe; by arranging the middle orifice plate with a staggered arrangement, when the two gases flow out of the middle pipe, the staggered arrangement of the holes can disrupt the gas stratification during the gas flow, further improving the mixing effect of the two gases in the main gas pipeline and the auxiliary gas pipeline, and being able to thoroughly mix the two gases in the mixing chamber for subsequent application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a partial cross-sectional structural schematic diagram of the utility model;

[0017] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure of the middle A area;

[0018] Figure 4 This is a schematic diagram of the structure inside the mixing chamber of the utility model;

[0019] Figure 5 It is a schematic diagram of the layout structure of the intermediate shaft, shaft sleeve and blade plate of the utility model.

[0020] In the figure: 1. mixer body; 2. main gas pipeline; 3. electric valve; 4. auxiliary gas pipeline; 41. control valve; 5. intermediate pipe; 6. bell mouth; 7. air inlet; 8. reinforcing ring base; 9. mixing tube; 91. snap groove; 92. snap protrusion; 93. intermediate orifice plate; 10. mixing chamber; 11. connecting base; 12. intermediate shaft; 13. sleeve shaft; 14. blade plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 The utility model provides a technical solution: a gas proportion mixer, comprising a mixer body 1, a main gas pipeline 2 and a secondary pipeline respectively connected to the mixer body 1, an inner cavity of the mixer body 1 is provided with an intermediate tube 5, the main gas pipeline 2 is connected to the intermediate tube 5, an air inlet hole is provided on the intermediate tube 5 and is connected to the secondary gas pipeline 4 through the air inlet hole, an end of the mixer body 1 away from the main gas pipe is connected with a mixing tube 9, a plurality of intermediate orifice plates 93 are snap-connected in the mixing tube 9, the plurality of intermediate orifice plates 93 are staggered and the orifice positions thereof are staggered; an end of the mixing tube 9 away from the mixer body 1 is connected with a mixing chamber 10.

[0023] The utility model allows gas of a certain pressure to be introduced into the main gas pipeline 2, so that when the gas passes through the middle pipe 5, the gas in the auxiliary gas pipeline 4 can be actively sucked in through the air inlet 7, and the two gases can be mixed with each other during the flow in the middle pipe 5; by arranging the middle orifice plate 93 with a staggered arrangement, when the two gases flow out of the middle pipe 5, the staggered arrangement of the holes can disrupt the gas stratification during the gas flow, further improving the mixing effect of the two gases in the main gas pipeline 2 and the auxiliary gas pipeline 4, and being able to thoroughly mix the two gases in the mixing chamber 10 for subsequent applications.

[0024] Reference Figure 1 and 2 As shown, in this embodiment, an electric valve 3 is arranged on the main gas pipeline 2, and a control valve 41 is provided on the secondary gas pipeline 4. In daily use, the gas flow in the intermediate pipe 5 sent by the main gas pipeline 2 is sucked into the secondary gas pipeline 4, so the control valve 41 on the secondary gas pipeline 4 can be kept in a normally open state by a manual or electric valve 3. The valve on the main gas pipeline 2 is the only control valve 41. If a manual valve is used, there is a problem of inconvenience in daily adjustment. Therefore, it is more appropriate to use an electric valve 3 and it is convenient to control the opening and closing of the entire mixer in daily life.

[0025] Reference Figure 2As shown, in this embodiment, a bell mouth 6 is provided at one end of the intermediate tube 5 close to the main gas pipeline 2, and a reinforcing ring base 8 is fixedly provided on the intermediate tube 5, and the reinforcing ring base 8 is fixedly connected to the cavity wall of the mixer body 1. When the high-pressure gas entering the main gas pipeline 2 passes through the bell mouth 6 into the intermediate tube 5, it can reach the maximum speed, and then the gas in the auxiliary gas pipeline 4 can be efficiently and stably inhaled; at the same time, due to the arrangement of the reinforcing ring base 8, the stability of the installation of the intermediate tube 5 and the mixer body 1 can be effectively improved.

[0026] Reference Figure 3 As shown, in this embodiment, a snap groove 91 is arranged on the cavity wall of the mixing tube 9, and a snap protrusion 92 snap-connected with the snap groove 91 is arranged on the middle orifice plate 93. When the middle orifice plate 93 with different hole purposes needs to be replaced on a daily basis, the snap installation of the snap protrusion 92 and the snap groove 91 can be released, so that the original middle orifice plate 93 can be disassembled and a new middle orifice plate 93 can be snap-installed again. In actual application, the snap protrusion 92 that can be elastically deformed can be snap-installed with the snap groove 91, or the middle orifice plate 93 that can be elastically deformed can be snap-installed with the snap protrusion 92 and the snap groove 91.

[0027] Reference Figure 4 and 5 As shown, in this embodiment, a plurality of connection bases 11 are symmetrically fixedly connected to the outlet end of the mixing chamber 10 near the mixing tube 9, and an intermediate shaft 12 is rotatably connected between the two connection bases 11 arranged above and below, and a sleeve shaft 13 is fixedly connected to the outside of the intermediate shaft 12, and a plurality of blade plates 14 are evenly distributed in an annular manner on the outer circumference of the sleeve shaft 13, and the airflow passing through the mixing tube 9 drives the blade plates 14 and the sleeve shaft 13 to rotate. When the mixed gas passing through the mixing tube 9 blows toward the blade plate 14, the blade plate 14 drives the sleeve and the intermediate shaft 12 to rotate, and then interferes with the flow direction of the mixed gas again, so that the mixed gas is mixed again, so that the mixed gas finally entering the mixing chamber 10 is fully and evenly mixed, avoiding the situation of local stratification, and further improving the subsequent utilization rate of the mixed gas.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas proportion mixer, comprising a mixer body, a main gas pipeline and a secondary pipeline respectively connected to the mixer body, characterized in that: The inner cavity of the mixer body is provided with an intermediate tube, the main gas pipeline is connected to the intermediate tube, the intermediate tube is provided with an air inlet hole and is connected to the auxiliary gas pipeline through the air inlet hole, the end of the mixer body away from the main gas pipe is connected with a mixing tube, a plurality of intermediate orifice plates are snap-connected in the mixing tube, the plurality of intermediate orifice plates are staggered with each other and the positions of the holes thereon are staggered with each other; the end of the mixing tube away from the mixer body is connected with a mixing chamber.

2. A gas proportion mixer according to claim 1, characterized in that: The main gas pipeline is connected with an electric valve, and the auxiliary gas pipeline is provided with a control valve.

3. A gas proportion mixer according to claim 1, characterized in that: A bell mouth is arranged at one end of the intermediate tube close to the main gas pipeline, and a reinforcing ring base is fixedly arranged on the intermediate tube, and the reinforcing ring base is fixedly connected to the cavity wall of the mixer body.

4. A gas proportion mixer according to any one of claims 1 to 3, characterized in that: A buckle groove is arranged on the cavity wall of the mixing tube, and a buckle protrusion buckled with the buckle groove is arranged on the middle orifice plate.

5. A gas proportion mixer according to any one of claims 1 to 3, characterized in that: The mixing chamber is symmetrically fixedly connected with a plurality of connection bases at the outlet end of the mixing tube, and an intermediate shaft is rotatably connected between the two connection bases arranged above and below. A sleeve shaft is fixedly connected to the outside of the intermediate shaft, and a plurality of blade plates are evenly distributed in an annular shape on the outer circumference of the sleeve shaft. The airflow passing through the mixing tube drives the blade plates and the sleeve shaft to rotate.

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