Split adjustable pitch mixer assembly

Abstract

The utility model relates to the technical field of mixer, especially a split type adjustable interval mixer assembly, including first flange, the first flange inside fixed sleeve joint has the air intake component, the air intake component inside movable sleeve joint has the adjusting assembly, the outer surface of adjusting assembly is fixedly connected with urea reductant input pipe and is inserted, the urea reductant input pipe right -hand member fixed sleeve joint has second flange, the adjusting assembly lower end is fixedly connected with mixing component and is inserted, the utility model discloses a split type adjustable interval mixer assembly can be set according to the different working condition of engine idling, high speed, adjusts the internal space, ensures that urea reductant and gas always keep the best mixing ratio, improves the exhaust purification efficiency, filters the impurity and intercepts, reduces the internal component wear and tear, prolongs the service life of equipment, reduces the maintenance cost, guarantees the high -efficient stable operation of engine exhaust treatment system.

Description

Technical Field

[0001] This utility model relates to the field of mixer technology, and in particular to a split-type adjustable spacing mixer assembly. Background Technology

[0002] The engine mixer is a core component of the engine exhaust aftertreatment system, playing a crucial role in environmental protection and stable engine operation. Its main function is to thoroughly mix the urea reducing agent with the gas. The resulting mixture effectively reduces nitrogen oxides in the exhaust gas, converting them into harmless nitrogen and water, thereby significantly reducing exhaust pollution and helping the engine meet stringent environmental emission standards.

[0003] However, traditional mixers use a fixed structure, and the internal spacing and mixing space cannot be flexibly adjusted according to actual operating conditions. Under idling conditions, the gas flow is small, while the internal space of the mixer with a fixed spacing is relatively large, making it difficult for the urea reducing agent to fully contact the gas. The mixing process is slow and insufficient, and a large amount of urea reducing agent cannot effectively participate in the reaction, which not only causes waste but also greatly reduces the exhaust gas purification effect. When the engine is under high-speed and heavy-load conditions, the gas flow increases sharply. Due to the limited internal space, the mixer cannot accommodate a large amount of gas and urea reducing agent in time, making it difficult to achieve uniform mixing. Nitrogen oxides in the exhaust gas cannot be fully reduced. Therefore, we have introduced a split-type adjustable spacing mixer assembly. Utility Model Content

[0004] The main objective of this invention is to provide a split-type adjustable spacing mixer assembly, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] The split-type adjustable spacing mixer assembly includes a first flange, an air intake component fixedly sleeved inside the first flange, a bolt threaded to the right side of the outer surface of the air intake component, an adjustment component movably sleeved inside the air intake component, a urea reducing agent input pipe inserted and fixedly connected to the outer surface of the adjustment component, a second flange fixedly sleeved to the right end of the urea reducing agent input pipe, a mixing component inserted and fixedly connected to the lower end of the adjustment component, and a U-shaped plate fixedly connected to the left end of the mixing component.

[0007] Preferably, the adjusting assembly includes a spacing adjusting tube, a sealing sleeve is fixedly fitted on the left side of the outer surface of the spacing adjusting tube, a plurality of T-shaped sealing blocks are fixedly connected to the outer surface of the sealing sleeve, a plurality of T-shaped adjusting blocks are fixedly connected to the left side of the outer surface of the spacing adjusting tube and to the right of the sealing sleeve, a filter block is fitted into the upper part of the inner side of the spacing adjusting tube, a spiral guide plate is fixedly fitted into the lower part of the inner side of the spacing adjusting tube, and a plurality of second screw holes are opened on the upper part of the outer surface of the spacing adjusting tube and to the right of the T-shaped adjusting blocks.

[0008] By adopting the above technical solution: the filter block uses "nanofiber filter material", which is made of ultra-fine fibers and has extremely high capture efficiency for tiny particles, and can filter out impurities of the micron or even submicron size.

[0009] Preferably, the air intake assembly includes an air intake pipe, the outer surface of which has a first threaded hole that passes through both the inside and outside, and the inner wall of the air intake pipe has several T-shaped adjustment slots. The air intake pipe is fixedly fitted into the first flange.

[0010] Preferably, the left side of the spacing adjustment tube is movably sleeved inside the air intake pipe, and the outer surface of the sealing sleeve is tightly fitted with the inner wall surface of the air intake pipe.

[0011] By adopting the above technical solution, the outer surface of the sealing sleeve is tightly fitted to the inner wall of the air intake pipe, forming a reliable seal to prevent gas from leaking from the connection between the spacing adjustment pipe and the air intake pipe during transmission.

[0012] Preferably, the number of the plurality of T-shaped sealing blocks is the same as the number of the plurality of T-shaped adjusting blocks, and they are distributed in pairs on the left and right. The plurality of T-shaped sealing blocks and the plurality of T-shaped adjusting blocks are respectively movably sleeved in the corresponding plurality of T-shaped adjusting slots, and the plurality of T-shaped sealing blocks are respectively tightly fitted with the inner wall surface of the corresponding plurality of T-shaped adjusting slots.

[0013] By adopting the above technical solution, operators can fine-tune the position of the spacing adjustment tube and change the size of the mixing space according to the changes in the flow rate of gas and urea reducing agent under different operating conditions such as engine idling and high-speed operation, thereby improving the versatility of the equipment.

[0014] Preferably, the outer surface of the bolt is threaded to the inner wall of the first screw hole and extends into the corresponding second screw hole, and the end of the urea reducing agent input pipe near the spacing adjustment pipe is inserted and fixedly connected to the outer surface of the spacing adjustment pipe.

[0015] By adopting the above technical solution, once the spacing adjustment tube is adjusted to the appropriate position, the tightening action of the bolts will firmly fix the spacing adjustment tube.

[0016] Preferably, the mixing component includes an air outlet pipe, a rotary motor is fixedly installed at the left end of the air outlet pipe, and the output end of the rotary motor passes through the left end of the air outlet pipe and extends into the air outlet pipe. A rotating rod is fixedly installed at the output end of the rotary motor, and a plurality of stirring blades are fixedly connected to the outer surface of the rotating rod. An air outlet with internal and external penetration is opened at the right end of the air outlet pipe, and the outer surface of the air outlet pipe is inserted and fixedly connected to the lower end of the spacing adjustment pipe.

[0017] By adopting the above technical solution: a rotary motor drives a rotating rod and several high-speed stirring blades are arranged in a ring array around the rotating rod, which can stir the gas entering the exhaust pipe with the urea reducing agent, so that the two are mixed quickly and evenly, ensuring that the concentration of the mixed gas discharged from the exhaust port is consistent and improving the exhaust gas treatment effect.

[0018] Preferably, the left end of the rotary motor is fixedly connected to the left inner wall of the U-shaped plate, and several of the stirring blades are arranged in a circular array around the center of the rotating rod, and each has a gap with the inner wall of the air outlet pipe.

[0019] By adopting the above technical solution, a gap is reserved between the stirring blade and the inner wall of the air outlet pipe, which effectively avoids collision and friction between the stirring blade and the inner wall of the air outlet pipe when rotating.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] In this invention, the left side of the spacing adjustment tube of the adjustment component is inserted into the intake pipe of the intake component. Initial positioning and sealing are achieved through the cooperation of the T-shaped sealing block, the T-shaped adjustment card block, and the T-shaped adjustment slot, as well as the tight fit between the sealing sleeve and the inner wall of the intake pipe. The position of the spacing adjustment tube within the intake pipe can then be flexibly changed to adjust the mixing space and meet different operating conditions. During use, gas enters the intake pipe through the first flange, passes through the sealed channel into the spacing adjustment tube, and is filtered by the filter block to remove impurities. Urea reducing agent enters through the urea reducing agent input pipe and is initially mixed with the gas under the action of the spiral guide plate. Finally, in the mixing component, the rotating motor drives the stirring blades to fully stir the gas-liquid mixture. The uniformly mixed gas is discharged from the outlet. This mixer assembly, through adjustable spacing settings, can adjust the internal space according to different operating conditions such as engine idling and high speed, ensuring that the urea reducing agent and gas always maintain the optimal mixing ratio, improving exhaust gas purification efficiency. The filter block intercepts impurities, reduces wear on internal components, extends equipment lifespan, reduces maintenance costs, and ensures stable operation of the engine exhaust gas treatment system. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the split-type adjustable spacing mixer assembly of this utility model;

[0023] Figure 2This is a cross-sectional view of the split-type adjustable pitch mixer assembly of this utility model (the air intake component, the adjustment component, and the mixing component are cut out).

[0024] Figure 3 This is a schematic diagram of the air intake assembly of the split-type adjustable spacing mixer assembly of this utility model;

[0025] Figure 4 This is a schematic diagram of the adjustment component of the split-type adjustable spacing mixer assembly of this utility model;

[0026] Figure 5 This is a cross-sectional view of the adjustment component of the split-type adjustable spacing mixer assembly of this utility model (the spacing adjustment tube is cut out in the view).

[0027] Figure 6 This is a schematic diagram of the mixing component of the split-type adjustable spacing mixer assembly of this utility model;

[0028] Figure 7 This is a cross-sectional view of the mixing component of the split-type adjustable spacing mixer assembly of this utility model (the air outlet pipe is shown in the cross-section).

[0029] In the diagram: 1. First flange; 2. Inlet assembly; 3. Bolt; 4. Adjustment assembly; 5. Urea reducing agent input pipe; 6. Second flange; 7. Mixing assembly; 8. U-shaped plate; 21. Inlet pipe; 22. First screw hole; 23. T-shaped adjustment slot; 41. Spacing adjustment pipe; 42. Sealing sleeve; 43. T-shaped sealing block; 44. T-shaped adjustment block; 45. Filter block; 46. Spiral guide plate; 47. Second screw hole; 71. Outlet pipe; 72. Rotary motor; 73. Rotating rod; 74. Stirring blade; 75. Outlet. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0031] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] Please see Figure 1-7 This utility model provides a technical solution:

[0034] The split-type adjustable spacing mixer assembly includes a first flange 1, an air intake component 2 is fixedly sleeved inside the first flange 1, a bolt 3 is threadedly connected to the right side of the outer surface of the air intake component 2, an adjustment component 4 is movably sleeved inside the air intake component 2, a urea reducing agent input pipe 5 is inserted and fixedly connected to the outer surface of the adjustment component 4, a second flange 6 is fixedly sleeved at the right end of the urea reducing agent input pipe 5, a mixing component 7 is inserted and fixedly connected to the lower end of the adjustment component 4, and a U-shaped plate 8 is fixedly connected to the left end of the mixing component 7.

[0035] In this embodiment, the adjustment component 4 includes a spacing adjustment tube 41. A sealing sleeve 42 is fixedly fitted onto the left side of the outer surface of the spacing adjustment tube 41. A plurality of T-shaped sealing blocks 43 are fixedly connected to the outer surface of the sealing sleeve 42. A plurality of T-shaped adjustment blocks 44 are fixedly connected to the left side of the outer surface of the spacing adjustment tube 41, located to the right of the sealing sleeve 42. A filter block 45 is fitted into the upper part of the inner side of the spacing adjustment tube 41. A spiral guide plate 46 is fixedly fitted into the lower part of the inner side of the spacing adjustment tube 41. The upper part of the outer surface of the spacing adjustment tube 41, located to the right of the T-shaped adjustment blocks 44... The intake assembly 2 includes an intake pipe 21. A first threaded hole 22, which passes through both the inner and outer sides, is located on the right side of the outer surface of the intake pipe 21. Several T-shaped adjusting slots 23 are located on the inner wall of the intake pipe 21. The intake pipe 21 is fixedly fitted inside the first flange 1. The left side of the spacing adjusting pipe 41 is movably fitted inside the intake pipe 21. The outer surface of the sealing sleeve 42 is tightly fitted to the inner wall of the intake pipe 21. The number of T-shaped sealing blocks 43 is the same as the number of T-shaped adjusting blocks 44, and they are distributed in pairs on the left and right sides. Block 43 and several T-shaped adjusting blocks 44 are respectively movably fitted into the corresponding several T-shaped adjusting slots 23, and the several T-shaped sealing blocks 43 are respectively tightly fitted with the inner wall surfaces of the corresponding several T-shaped adjusting slots 23; the outer surface of the bolt 3 is threaded to the inner wall surface of the first screw hole 22 and extends into the corresponding second screw hole 47; the end of the urea reducing agent input pipe 5 near the spacing adjusting pipe 41 is inserted and fixedly connected to the outer surface of the spacing adjusting pipe 41; the mixing component 7 includes an exhaust pipe 71, and a rotary motor 72 is fixedly installed at the left end of the exhaust pipe 71, and The output end of the rotary motor 72 passes through the left end of the air outlet pipe 71 and extends into the air outlet pipe 71. A rotating rod 73 is fixedly installed at the output end of the rotary motor 72. Several stirring blades 74 are fixedly connected to the outer surface of the rotating rod 73. An air outlet 75 with internal and external penetration is opened at the right end of the air outlet pipe 71. The outer surface of the air outlet pipe 71 is inserted and fixedly connected to the lower end of the spacing adjustment pipe 41. The left end of the rotary motor 72 is fixedly connected to the left inner wall of the U-shaped plate 8. Several stirring blades 74 are arranged in a circular array around the center of the rotating rod 73, and each has a gap with the inner wall of the air outlet pipe 71.

[0036] It should be noted that this utility model is a split-type adjustable spacing mixer assembly. During installation, the left part of the spacing adjustment tube 41 of the adjustment component 4 is inserted into the air intake pipe 21 of the air intake component 2, so that the T-shaped sealing block 43 and the T-shaped adjustment block 44 are embedded in the T-shaped adjustment groove 23 on the inner wall of the air intake pipe 21, ensuring that the sealing sleeve 42 is tightly fitted with the inner wall of the air intake pipe 21, achieving sealing and initial positioning. According to the mixing requirements, the position of the spacing adjustment tube 41 in the air intake pipe 21 is adjusted to determine the mixing space. After adjustment, the bolt 3 is screwed into the first screw hole 22 and extends into the second screw hole 47 to fix the position of the adjustment component 4 in the air intake component 2. The air intake component 2 is connected to the gas inlet through the first flange 1, and the urea reducing agent input pipe 5 is connected to the urea inlet through the second flange 6. The urea reducing agent supply source, during use, the gas enters the air inlet pipe 21 of the air inlet assembly 2 through the first flange 1, and enters the spacing adjustment pipe 41 through the sealed channel formed by the T-shaped adjustment slot 23, the T-shaped sealing block 43, and the T-shaped adjustment block 44. The filter block 45 filters out impurities in the gas, and the urea reducing agent enters the spacing adjustment pipe 41 through the urea reducing agent input pipe 5. Under the action of the spiral guide plate 46, it flows in a spiral and mixes initially with the filtered gas in the spacing adjustment pipe 41. The initially mixed gas and urea reducing agent enter the air outlet pipe 71 of the mixing assembly 7. The rotary motor 72 is started, which drives the rotating rod 73 and the ring array of stirring blades 74 to rotate, so as to fully stir the gas and urea reducing agent. Finally, the uniformly mixed gas is discharged from the air outlet 75.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A split-type adjustable-gap mixer assembly, comprising a first flange (1), characterized in that: An air intake assembly (2) is fixedly sleeved inside the first flange (1). A bolt (3) is threadedly connected to the right side of the outer surface of the air intake assembly (2). An adjustment assembly (4) is movably sleeved inside the air intake assembly (2). A urea reducing agent input pipe (5) is inserted and fixedly connected to the outer surface of the adjustment assembly (4). A second flange (6) is fixedly sleeved at the right end of the urea reducing agent input pipe (5). A mixing assembly (7) is inserted and fixedly connected to the lower end of the adjustment assembly (4). A U-shaped plate (8) is fixedly connected to the left end of the mixing assembly (7). The adjustment assembly (4) includes a spacing adjustment tube (41). A sealing sleeve (42) is fixedly sleeved on the left side of the outer surface of the spacing adjustment tube (41). Several T-shaped sealing blocks (43) are fixedly connected to the outer surface of the sealing sleeve (42). Several T-shaped adjustment blocks (44) are fixedly connected to the left side of the outer surface of the spacing adjustment tube (41) and to the right of the sealing sleeve (42). A filter block (45) is sleeved on the upper part of the inner side of the spacing adjustment tube (41). A spiral guide plate (46) is fixedly sleeved on the lower part of the inner side of the spacing adjustment tube (41). Several second screw holes (47) are opened on the upper part of the outer surface of the spacing adjustment tube (41) and to the right of the T-shaped adjustment blocks (44).

2. The split-type adjustable-pitch mixer assembly according to claim 1, characterized in that: The air intake assembly (2) includes an air intake pipe (21). The right side of the outer surface of the air intake pipe (21) has a first threaded hole (22) that passes through both the inside and outside. The inner wall of the air intake pipe (21) has several T-shaped adjustment slots (23). The air intake pipe (21) is fixedly sleeved in the first flange (1).

3. The split-type adjustable-pitch mixer assembly according to claim 1, characterized in that: The left side of the spacing adjustment tube (41) is movably sleeved inside the air intake tube (21), and the outer surface of the sealing sleeve (42) is tightly fitted with the inner wall surface of the air intake tube (21).

4. The split-type adjustable-pitch mixer assembly according to claim 1, characterized in that: The number of T-shaped sealing blocks (43) and the number of T-shaped adjusting blocks (44) are the same, and they are distributed in pairs on the left and right. The T-shaped sealing blocks (43) and the T-shaped adjusting blocks (44) are respectively movably sleeved in the corresponding T-shaped adjusting slots (23), and the T-shaped sealing blocks (43) are respectively tightly fitted with the inner wall surface of the corresponding T-shaped adjusting slots (23).

5. The split-type adjustable-pitch mixer assembly according to claim 1, characterized in that: The outer surface of the bolt (3) is threaded to the inner wall of the first screw hole (22) and extends into the corresponding second screw hole (47). The end of the urea reducing agent input pipe (5) near the spacing adjustment pipe (41) is inserted and fixedly connected to the outer surface of the spacing adjustment pipe (41).

6. The split-type adjustable-pitch mixer assembly according to claim 1, characterized in that: The mixing component (7) includes an air outlet pipe (71), a rotary motor (72) is fixedly installed at the left end of the air outlet pipe (71), and the output end of the rotary motor (72) passes through the left end of the air outlet pipe (71) and extends into the air outlet pipe (71). A rotating rod (73) is fixedly installed at the output end of the rotary motor (72), and several stirring blades (74) are fixedly connected to the outer surface of the rotating rod (73). An air outlet (75) with internal and external penetration is opened at the right end of the air outlet pipe (71), and the outer surface of the air outlet pipe (71) is inserted and fixedly connected to the lower end of the spacing adjustment pipe (41).

7. The split-type adjustable-pitch mixer assembly according to claim 6, characterized in that: The left end of the rotary motor (72) is fixedly connected to the left inner wall of the U-shaped plate (8), and several stirring blades (74) are arranged in a circular array around the center of the rotating rod (73), and all of them have gaps with the inner wall of the air outlet pipe (71).

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