CN214261417U - Air and gas blender - Google Patents
Air and gas blender Download PDFInfo
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- CN214261417U CN214261417U CN202120096151.7U CN202120096151U CN214261417U CN 214261417 U CN214261417 U CN 214261417U CN 202120096151 U CN202120096151 U CN 202120096151U CN 214261417 U CN214261417 U CN 214261417U
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Abstract
The utility model discloses an air gas blender relates to colliery safety technical field, including mixing pipe, guide plate and buffer gear, it is regional that mixing is intraductal to be provided with the water conservancy diversion, and the guide plate is provided with a plurality of pieces and is located the water conservancy diversion intra-area, and buffer gear is located mixing intraductally and is located the regional below of water conservancy diversion, and buffer gear includes the circular plate, and circular plate outer fringe circumference distributes and has a plurality of connecting blocks, and the connecting block is all connected at mixing inside pipe wall, and the circular plate bottom is connected with the cone, the utility model has the advantages of can slow down the gas mixture velocity of flow, improve mixing uniformity, reduce the erosion effect to the guide plate.
Description
Technical Field
The utility model relates to a coal mine safety technical field, concretely relates to air gas blender.
Background
The ventilation air is also called coal mine air exhaust gas, namely coal mine gas with the methane concentration lower than 0.75 percent. The use of "ventilation air" has been a worldwide problem. Due to the low concentration and great technical difficulty in utilization, the methane can only be completely discharged into the atmosphere for a long time, and huge greenhouse gas pollution is caused. The low-concentration gas refers to coal bed gas with the methane concentration lower than 30%, and is divided into two parts, namely air exhaust gas (ventilation air methane) and drainage gas. The concentration of ventilation air discharged by a mine ventilation system is lower than 0.75%, the air volume is extremely large, and the contained methane accounts for about 81% of the total methane content of coal mine gas in China. The principle of ventilation air methane and low-concentration gas oxidation power generation is that pumping gas of a pump station is mixed into ventilation air methane, the ventilation air methane is guided into a heat accumulating type high-temperature oxidation device, low-concentration methane is instantly oxidized into water and carbon dioxide in a high-temperature reaction cavity without flame, huge oxidation heat is released, a small part of the heat energy is used for maintaining reaction temperature, and most of the heat energy is guided out to a waste heat boiler to exchange heat with water to generate superheated high-pressure water vapor to drive a steam turbine to generate power. The ventilation air and low-concentration gas oxidation power generation can destroy more than 95% of evacuated methane, and a distributed clean energy system is built by using low-concentration gas resources, so that the method conforms to the national gas control policy of 'pumping promotion'.
In the system of mixing, the ware of mixing needs to be used when ventilation air methane and drainage gas mix, and current gas mixes ware simple structure, and its inside stroke that delays the mist through setting up a plurality of guide plates to improve the mixed effect, but ventilation air methane and drainage gas are great when getting into the guide plate region velocity of flow, have just passed through the guide plate region very fast, and the mist mixing homogeneity is lower, and the great gas of velocity of flow erodees the effect greatly to the guide plate, and guide plate life is on the low side.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model provides an air gas blender to thereby reach and slow down the effect of the mist velocity of flow and improve mixing uniformity, and reduce the erosion effect to the guide plate.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model provides an air gas blender, includes mixing pipe, guide plate and buffer gear, and the intraductal water conservancy diversion region that is provided with of mixing, guide plate are provided with a plurality of pieces and are located the water conservancy diversion region, and buffer gear is located the intraductal below that is located the water conservancy diversion region of mixing, and buffer gear includes the circular slab, and circular slab outer fringe circumference distributes and has a plurality of connecting blocks, and the connecting block is all connected at the mixing inside pipe wall, and the circular slab bottom is connected with the cone.
Preferably, adjacent baffles are arranged in a staggered manner, and all baffles are arranged obliquely.
Preferably, a dynamic mixing device is arranged in the mixing pipe and positioned above the guide plate, the dynamic mixing device comprises a support fixed on the inner wall of the mixing pipe, a rotating shaft is movably arranged on the support, and a plurality of blades are arranged on the rotating shaft.
Preferably, the axis of rotation is connected with actuating mechanism, and actuating mechanism is connected with drive bevel gear including connecting the driven bevel gear in the axis of rotation bottom, and driven bevel gear meshing is connected with drive bevel gear, and drive bevel gear is connected with the drive shaft, and the drive shaft activity runs through mixing pipe and is connected with the reduction gear, and the reduction gear setting is at mixing pipe outer wall, and the reduction gear connection has driving motor.
Preferably, the blending tube is connected to a buffer tube above the dynamic mixing device, the buffer tube having a diameter greater than the diameter of the blending tube.
Preferably, the buffer tube is connected with a mixing conveying pipe, and a gas concentration detector is arranged on the mixing conveying pipe.
Preferably, a return pipe is connected between the mixing conveying pipe and the mixing pipe, the connecting position of the return pipe and the mixing pipe is located below the buffer mechanism, control valves A are arranged on the return pipe and close to the mixing conveying pipe and the mixing pipe, a control valve B is arranged on the mixing conveying pipe, and the connecting position of the return pipe and the mixing conveying pipe is located between the control valves A and B.
The beneficial effects of the utility model are embodied in:
1. after the mixed gas enters the mixing pipe, the mixed gas is firstly obstructed to be dispersed under the action of the conical head in the buffer mechanism, the flow velocity of the mixed gas is delayed, the mixed gas is contacted with the mixed gas through the conical head, the erosion action is small, then the mixed gas is divided into a plurality of air flows when passing through the gap between the connecting blocks, the impact force and the flow velocity of the mixed gas are greatly reduced, the mixing uniformity of the mixed gas is improved, the erosion action is small when the mixed gas is contacted with the guide plate, and the service life of the guide plate is prolonged.
2. The adjacent guide plates are arranged in a staggered mode, all the guide plates are arranged in an inclined mode, the stroke of mixed gas flowing through the guide plates is increased, and the mixing uniformity of the mixed gas is further improved.
3. When the mist passes through dynamic mixing device, make a plurality of blades stir the mist under the axis of rotation effect, strengthen the mixed effect to the mist, mix more fully evenly, improved the mixing precision greatly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic structural view of an air-gas blender according to the present invention;
fig. 2 is a schematic perspective view of the buffer mechanism of the present invention;
fig. 3 is a schematic view of the connection structure of the dynamic mixing device and the driving mechanism of the present invention.
Reference numerals:
1-mixing pipe, 2-guide plate, 3-buffer mechanism, 3.1-round plate, 3.2-connecting block, 3.3-cone, 4-dynamic mixing device, 4.1-support, 4.2-rotating shaft, 4.3-blade, 5-driving mechanism, 5.1-driven main gear, 5.2-driving bevel gear, 5.3-driving shaft, 5.4-speed reducer, 5.5-driving motor, 6-buffer pipe, 7-mixing conveying pipe, 8-gas concentration detector, 9-reflux pipe, 10-control valve A, 11-control valve B.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "up", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are conventionally placed when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
Example 1
As shown in fig. 1-3, this embodiment provides an air gas blender, including mixing pipe 1, guide plate 2 and buffer mechanism 3, mixing pipe 1 is connected with two pipeline (not shown in the figure) respectively, two pipeline are used for carrying the ventilation air methane and the drainage gas respectively, the ventilation air methane and the drainage gas form the mist after entering mixing pipe 1, be provided with the water conservancy diversion region in the mixing pipe 1, guide plate 2 is provided with a plurality of pieces and is located the water conservancy diversion region, buffer mechanism 3 is located mixing pipe 1 and is located the below of water conservancy diversion region, buffer mechanism 3 includes circular plate 3.1, the outer fringe circumference of circular plate 3.1 distributes has a plurality of connecting blocks 3.2, here connecting block 3.2 evenly distributes around circular plate 3.1, connecting block 3.2 all connects at mixing pipe 1 inner wall, circular plate 3.1 bottom is connected with cone 3.3.
In this embodiment, after the mist got into in the mixing pipe 1, at first in buffer gear 3 the cone head effect down obstructed and broken up, the mist velocity of flow has been delayed, and through cone head and mist contact, the erosion effect is little, then the mist is divided into the stranded air current again when passing in the clearance between connecting block 3.2, the impact force and the velocity of flow of mist have been reduced greatly, thereby the mixing uniformity of mist has been improved, and at this moment the erosion effect is very little when mist and the contact of guide plate 2, the life of guide plate 2 has been improved, therefore, the practicality is high.
Specifically, the adjacent guide plates 2 are arranged in a staggered manner, and all the guide plates 2 are arranged in an inclined manner, so that the stroke of the mixed gas flowing through the guide plates 2 can be increased, and the mixing uniformity of the mixed gas is further improved.
Specifically, be provided with the dynamic mixing device 4 that is located guide plate 2 top in the mixing pipe 1, dynamic mixing device 4 is including fixing support 4.1 at mixing pipe 1 inner wall, the activity is provided with axis of rotation 4.2 on support 4.1, be provided with a plurality of blades 4.3 on the axis of rotation 4.2, axis of rotation 4.2 is connected with actuating mechanism 5, actuating mechanism 5 is including connecting the driven bevel gear in axis of rotation 4.2 bottom, driven bevel gear meshing is connected with drive bevel gear 5.2, drive bevel gear 5.2 is connected with drive shaft 5.3, drive shaft 5.3 activity runs through mixing pipe 1 and is connected with reduction gear 5.4, reduction gear 5.4 sets up at mixing pipe 1 outer wall, reduction gear 5.4 is connected with driving motor 5.5.
Can drive bevel gear 5.2 and driven bevel gear when driving motor 5.5 starts and rotate to drive axis of rotation 4.2 and rotate, make a plurality of blades 4.3 stir the mist under the 4.2 rotation of axis of rotation effect, strengthen the mixed effect to the mist, mix more abundant even, improved the mixing precision greatly, degree of automation is high.
It should be noted that, here, a bearing seat is arranged on the support 4.1, the rotating shaft 4.2 is movably connected in the bearing seat, the driven bevel gear is located below the bearing seat, and the bearing seat plays a role in supporting the rotating shaft 4.2 and matching with the rotating shaft to rotate.
Specifically, the mixing tube 1 is connected with a buffer tube 6 positioned above the dynamic mixing device 4, and the diameter of the buffer tube 6 is larger than that of the mixing tube 1. Because the flow velocity of the mixed gas from the mixing pipe 1 is increased under the action of the dynamic mixing device 4, the buffer pipe 6 is arranged, and the gas pressure is reduced after the mixed gas enters the buffer pipe 6 with the large diameter from the mixing pipe 1 with the small diameter, so that the flow velocity of the mixed gas is reduced through buffering, the normal flow velocity of the mixed gas is recovered, and the normal operation of the follow-up work is ensured.
Specifically, the buffer tube 6 is connected with a mixing conveying pipe 7, the mixing conveying pipe 7 is used for conveying mixed gas, and a gas concentration detector 8 is arranged on the mixing conveying pipe 7. A return pipe 9 is connected between the mixing delivery pipe 7 and the mixing pipe 1, the connecting position of the return pipe 9 and the mixing pipe 1 is positioned below the buffer mechanism 3, control valves A10 are arranged on the positions, close to the mixing delivery pipe 7 and the mixing pipe 1, of the return pipe 9, the control valves A10 are closed under the normal working condition, mixed gas is prevented from entering the return pipe 9, a control valve B11 is arranged on the mixing delivery pipe 7, and the connecting position of the return pipe 9 and the mixing delivery pipe 7 is positioned between the control valve A10 and the control valve B11.
When the gas concentration detector 8 detects that the gas concentration of the mixed gas is still higher, the control valve B11 is closed, the two control valves A10 are opened simultaneously, the mixed gas can flow back into the mixing pipe 1 through the return pipe 9 to be mixed for the second time, until the mixed gas concentration reaches the standard, the control valve B11 is opened again, the two control valves A10 are closed simultaneously, the mixed gas normally flows through the mixing conveying pipe 7, and the safety is guaranteed.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (7)
1. An air-gas blender, comprising:
the mixing pipe is internally provided with a flow guide area;
the guide plate is provided with a plurality of blocks and is positioned in the guide area;
the buffer mechanism is positioned in the mixing pipe and below the flow guide area, the buffer mechanism comprises a circular plate, a plurality of connecting blocks are distributed on the outer edge of the circular plate in the circumferential direction, the connecting blocks are connected to the inner wall of the mixing pipe, and the bottom of the circular plate is connected with a cone.
2. The air gas blender of claim 1 wherein adjacent baffles are staggered relative to each other and all baffles are angled.
3. The air-gas blender of claim 1 wherein the blending pipe includes a dynamic mixing device disposed above the baffle, the dynamic mixing device including a support secured to an inner wall of the blending pipe, the support having a rotatable shaft, the rotatable shaft having a plurality of blades disposed thereon.
4. The air-gas blender of claim 3 wherein the rotating shaft is connected to a driving mechanism, the driving mechanism comprises a driven bevel gear connected to the bottom of the rotating shaft, the driven bevel gear is connected to a driving bevel gear in a meshing manner, the driving bevel gear is connected to a driving shaft, the driving shaft movably penetrates through the blending pipe and is connected to a speed reducer, the speed reducer is arranged on the outer wall of the blending pipe, and the speed reducer is connected to a driving motor.
5. An air-gas blender as claimed in claim 4 in which the blending tube is connected to a buffer tube above the dynamic mixing device, the buffer tube having a diameter greater than the diameter of the blending tube.
6. The air-gas blender of claim 5 wherein the buffer tube is connected to a mixing duct, the mixing duct having a gas concentration detector disposed thereon.
7. The air-gas blender of claim 6 wherein a return pipe is connected between the mixing duct and the blending duct, the connection of the return pipe and the blending duct is located below the cushioning mechanism, the return pipe is provided with a control valve A adjacent to both the mixing duct and the blending duct, the mixing duct is provided with a control valve B, and the connection of the return pipe and the mixing duct is located between the control valve A and the control valve B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120096151.7U CN214261417U (en) | 2021-01-14 | 2021-01-14 | Air and gas blender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120096151.7U CN214261417U (en) | 2021-01-14 | 2021-01-14 | Air and gas blender |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214261417U true CN214261417U (en) | 2021-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120096151.7U Active CN214261417U (en) | 2021-01-14 | 2021-01-14 | Air and gas blender |
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| Country | Link |
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| CN (1) | CN214261417U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754216A (en) * | 2022-04-14 | 2022-07-15 | 安徽晋煤中能化工股份有限公司 | Pipeline vibration damper |
| CN115245781A (en) * | 2022-07-27 | 2022-10-28 | 济南德洋特种气体有限公司 | Flow rate control and stirring device for gas mixing |
-
2021
- 2021-01-14 CN CN202120096151.7U patent/CN214261417U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754216A (en) * | 2022-04-14 | 2022-07-15 | 安徽晋煤中能化工股份有限公司 | Pipeline vibration damper |
| CN114754216B (en) * | 2022-04-14 | 2023-06-02 | 安徽晋煤中能化工股份有限公司 | Pipeline vibration damper |
| CN115245781A (en) * | 2022-07-27 | 2022-10-28 | 济南德洋特种气体有限公司 | Flow rate control and stirring device for gas mixing |
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