Ammonia-air mixer convenient to disassemble

Abstract

The utility model relates to the technical field of ammonia-air mixers, in particular to an ammonia-air mixer convenient to disassemble, which comprises a first barrel and a second barrel, the first barrel is connected with the second barrel through threads, limiting devices are arranged in the ends, far away from each other, of the first barrel and the second barrel, and limiting plates are mounted on the limiting devices. A telescopic rod is installed in the middle of the position between the two limiting plates, blades are arranged on the telescopic rod, an air inlet pipe is arranged on the side face of the second barrel, an ammonia gas pipe leading into the second barrel is installed in the air inlet pipe, and the first barrel and the second barrel are connected through threads, so that the device and other pipelines can be rapidly assembled and disassembled, and the device is convenient to use. And the telescopic rod is detachably mounted in the first barrel and the second barrel through the limiting plate and the limiting device, so that an operator can conveniently detach the telescopic rod from the interior of the device after detaching the device, and dust attached to the blades or the telescopic rod is quickly cleaned.

Description

Technical Field

[0001] This utility model relates to the field of ammonia-air mixer technology, specifically to an ammonia-air mixer that is easy to disassemble. Background Technology

[0002] In industrial flue gas NOx treatment technologies, SCR denitrification technology is widely used due to its advantages such as large flue gas volume treatment, high denitrification efficiency, and stable operation. Before passing through the catalyst, the flue gas is mixed evenly with the reducing agent ammonia gas injected into the flue through an ammonia-air mixer. Under the action of the catalyst, the NOx in the flue gas reacts with the reducing agent ammonia to generate harmless substances such as N2 and water, thereby achieving the purpose of denitrification.

[0003] Ammonia-air mixing device, disclosed in CN220294480U, includes a cylinder with an inlet and an outlet. Both ends of the cylinder are detachably fitted with end caps. A fixed pipe is horizontally arranged inside the cylinder along its axial direction, with both ends detachably connected to the cylinder. Multiple sets of guide vanes are arranged on the surface of the fixed pipe. This invention allows for the detachable connection of the fixed pipe to the cylinder, enabling the removal of the fixed pipe and guide vanes from the cylinder for easy disassembly and maintenance, and facilitating cleaning. Furthermore, the mixer has a simple structure; the cross-sectional area of ​​the blades accounts for only about 14% of the cylinder's cross-sectional area, effectively reducing airflow resistance and preventing blockage. The blades of the multiple sets of guide vanes are inclined at a certain angle to the plane they are on, creating a spiral airflow between the guide vanes. This generates a rotational force after the ammonia and air are mixed, enhancing the thorough mixing of the airflow.

[0004] However, when the device is in use, the air impacts the internal blades, which causes backflow and better mixing with other gases. But when the air impacts the blades, the dust it carries is also adsorbed at the angle between the blades. Over time, this will lead to poor mixing effect. In addition, the device is connected by bolts, which makes disassembly and installation time long and reduces the efficiency of installation and disassembly. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an ammonia-air mixer that is easy to disassemble. By rotating the first and second cylinders by thread, the overall length of the first and second cylinders can be increased or decreased, which facilitates quick connection of the first and second cylinders with external pipes. Since the inner walls of the first and second cylinders are provided with limiting devices, the telescopic rod can be installed inside the first and second cylinders by the cooperation of the limiting devices and limiting plates. The telescopic rod can increase or decrease its own length by following the increase or decrease of the overall length of the first and second cylinders.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A disassembleable ammonia-air mixer includes a first cylinder and a second cylinder, which are connected by threads. Each cylinder has a limiting device inside its interior at a distance from the first cylinder and the second cylinder. A limiting plate is installed on the limiting device, and a telescopic rod is installed in the middle between the two limiting plates. The telescopic rod is provided with blades. An air inlet pipe is provided on the side of the second cylinder, and an ammonia gas pipe that enters the interior of the second cylinder is installed in the air inlet pipe.

[0008] Preferably, both the ends of the first cylinder and the second cylinder that are far apart are provided with a connecting joint, and a sealing gasket is provided inside the connecting joint.

[0009] Preferably, the limiting device includes two limiting blocks arranged side by side, and a limiting plate is installed between the two limiting blocks. The limiting blocks protrude from the inner walls of the first sleeve and the second sleeve, and the lengths of the two limiting plates are respectively adapted to the inner diameters of the first cylinder and the second cylinder.

[0010] Preferably, the telescopic rod includes two rods, each with a semi-circular cross-section, the cross-sections of the two rods forming a circle, and matching sliders and grooves are respectively provided on the sides of the two rods that abut against each other, and the two rods are connected by the grooves and sliders.

[0011] Preferably, the ends of the two rods that are far apart are fixedly connected to the limiting plate, and the blades are respectively arrayed on the outer walls of the two rods.

[0012] Preferably, the ends of the two rods that are far apart are rotatably connected to a limiting rod, and the blades are respectively arrayed on the outer walls of the two rods.

[0013] Preferably, an observation window is provided on the side wall of the second cylinder, and both the outer side walls of the first and second cylinders have a prismatic structure.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The present invention has a simple structure. Since the first and second cylinders of the device are connected by threads, it is easy to quickly install and disassemble the device with other pipes. The telescopic rod is detachably installed inside the first and second cylinders through the limiting plate and the limiting device, which makes it easy for the operator to remove the telescopic rod from the inside of the device after disassembling the device, and quickly clean the dust attached to the blades or the telescopic rod, thereby improving the cleaning efficiency of the device.

[0016] 2. This device is designed with connectors to facilitate quick connection with external pipelines. First, place one end of the connector onto the external pipeline. Then, screw on the first and second cylinders to ensure that the other end of the connector is gradually placed onto another pipeline. By continuing to screw on the first and second cylinders, ensure that the sealing gaskets inside the two connectors can effectively prevent ammonia leakage.

[0017] 3. Because the lengths of the two limiting plates in this device are adapted to the internal diameters of the first and second cylinders respectively, it is easy to quickly insert the two limiting plates connected by the telescopic rod into the inside of the first and second cylinders. By rotating the limiting plates, it is ensured that the limiting plates are installed between the two limiting blocks. Since the two limiting blocks are arranged side by side and there is an installation groove between the two limiting blocks, it is easy to quickly install and remove the limiting plates.

[0018] 4. The telescopic rod of this device consists of two rods, which are connected by a sliding groove and a slider. The ends of the two rods that are far apart are connected to two limiting plates, which effectively realizes the telescopic function of the telescopic rod.

[0019] 5. The observation window of this device allows operators to monitor the operating status of the mixer without direct contact with the gas, thereby improving operational safety. The observation window also helps to check for scale buildup, blockages or other abnormalities inside the mixer, facilitating timely maintenance and cleaning. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 A cross-sectional view of this utility model Figure 1 ;

[0022] Figure 3 A cross-sectional view of this utility model Figure 2 .

[0023] In the diagram: 1. First cylinder; 2. Second cylinder; 3. Connecting joint; 4. Limiting block; 5. Limiting plate; 6. Telescopic rod; 7. Blade; 8. Prism-shaped structure; 9. Slider; 10. Slide groove; 11. Observation window; 12. Air inlet pipe; 13. Ammonia pipe; 14. Sealing gasket. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] An easily disassembled ammonia-air mixer, with the following structure: Figures 1-3 As shown, it includes a first cylinder 1 and a second cylinder 2. The first cylinder 1 and the second cylinder 2 are connected by threads. Each of the first cylinder 1 and the second cylinder 2 has a limiting device inside at one end away from each other. The limiting device is equipped with a limiting plate 5. A telescopic rod 6 is installed in the middle between the two limiting plates 5. The telescopic rod 6 is provided with a blade 7. The side of the second cylinder 2 has an air inlet pipe 12. An ammonia gas pipe 13 that enters the interior of the second cylinder 2 is installed in the air inlet pipe 12.

[0027] Ammonia gas enters the second cylinder 2 through the ammonia pipe 13 and the inlet pipe 12. Air enters the second cylinder 2 from the end away from the first cylinder 1 and exits from the end of the first cylinder 1 away from the second cylinder 2. The ammonia gas and air mix inside the first cylinder 1 and the second cylinder 2. Since the first cylinder 1 and the second cylinder 2 are connected by threads, it is easy to rotate the first cylinder 1 and the second cylinder 2 by threads, thereby increasing or decreasing the overall length of the first cylinder 1 and the second cylinder 2, which facilitates quick connection between the first cylinder 1 and the second cylinder 2 and external pipes. Since limit devices are provided on the inner walls of the first cylinder 1 and the second cylinder 2, the telescopic rod 6 can be easily installed in the first cylinder 1 and the second cylinder 2 through the cooperation of the limit devices and the limit plate 5. Inside cylinder 2, the telescopic rod 6 can increase or decrease its own length by following the increase or decrease of the overall length of the first cylinder 1 and the second cylinder 2. The blades 7 on the telescopic rod 6 can fully stir and mix ammonia and air to ensure uniform gas mixing and improve mixing efficiency. Since the first cylinder 1 and the second cylinder 2 of this device are connected by threads, it is easy to quickly install and disassemble this device with other pipelines. The telescopic rod 6 is detachably installed inside the first cylinder 1 and the second cylinder 2 through the limiting plate 5 and the limiting device, which makes it easy for the operator to remove the telescopic rod 6 from the inside of this device after disassembling the device, and quickly clean the dust attached to the blades 7 or the telescopic rod 6, thereby improving the cleaning efficiency of this device.

[0028] Both the first cylinder 1 and the second cylinder 2 are provided with a connecting joint 3 at their far ends, and a sealing gasket 14 is provided inside the connecting joint 3.

[0029] The connector 3 facilitates quick connection with external pipes. First, the connector 3 at one end is placed on the external pipe. Then, the first cylinder 1 and the second cylinder 2 are screwed on to ensure that the connector 3 at the other end is gradually placed on another pipe. By continuing to screw on the first cylinder 1 and the second cylinder 2, the sealing gasket 14 inside the two connectors 3 can effectively prevent ammonia leakage.

[0030] The limiting device includes two limiting blocks 4 arranged side by side, and a limiting plate 5 is installed between the two limiting blocks 4. The limiting blocks 4 protrude from the inner walls of the first sleeve and the second sleeve, and the lengths of the two limiting plates 5 are respectively adapted to the inner diameters of the first cylinder 1 and the second cylinder 2.

[0031] Since the lengths of the two limiting plates 5 are adapted to the internal diameters of the first cylinder 1 and the second cylinder 2 respectively, it is convenient to quickly insert the two limiting plates 5 connected by the telescopic rod 6 into the first cylinder 1 and the second cylinder 2. By rotating the limiting plates 5, it is ensured that the limiting plates 5 are installed between the two limiting blocks 4. Since the two limiting blocks 4 are arranged side by side and there is an installation groove between the two limiting blocks 4, it is convenient to quickly install and remove the limiting plates 5.

[0032] The telescopic rod 6 includes two rods with semi-circular cross sections, the cross sections of the two rods forming a circle, and the sides of the two rods that abut against each other are respectively provided with matching sliders 9 and grooves 10. The two rods are connected by the grooves 10 and sliders 9.

[0033] Since the overall length of the first cylinder 1 and the second cylinder 2 can be increased or decreased by threads, the telescopic rod 6 installed inside the first cylinder 1 and the second cylinder 2 needs to extend or retract in accordance with the increase or decrease of the overall length of the first cylinder 1 and the second cylinder 2. Since the telescopic rod 6 is composed of two rods, and the two rods are connected by a sliding groove 10 and a slider 9, the ends of the two rods that are far apart are respectively connected to two limiting plates 5, effectively realizing the telescopic function of the telescopic rod 6.

[0034] The two ends of the rods that are far apart are respectively fixedly connected to the limiting plate 5, and the blades 7 are respectively arranged in an array on the outer wall of the two rods.

[0035] Since the two rods are fixedly connected to the two limiting plates 5 respectively, the blades 7 on the rods cannot rotate with the flow of gas. The air and ammonia are fully mixed by impacting the blades 7. Since the rods are directly fixed on the limiting plates 5, the structure is simpler and the possibility of mechanical failure is reduced. Since there are no moving parts, maintenance and upkeep are simpler and maintenance costs are reduced.

[0036] Example 2

[0037] Based on Embodiment 1, the two ends of the rods that are far apart are rotatably connected to a limiting rod, and the blades 7 are arrayed on the outer walls of the two rods. The rotating blades 7 can promote the mixing between ammonia and air. Through the rotational movement of the blades 7, the gas is effectively stirred, thereby achieving a more uniform and faster mixing.

[0038] An observation window 11 is provided on the side wall of the second cylinder 2, and the outer side walls of the first cylinder 1 and the second cylinder 2 both have a prismatic structure 8.

[0039] Ammonia is a toxic and irritating gas. The observation window 11 allows operators to monitor the operating status of the mixer without direct contact with the gas, thereby improving operational safety. In addition, the observation window 11 helps to check for scale buildup, blockages or other abnormalities inside the mixer, facilitating timely maintenance and cleaning.

[0040] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations, additions, subtractions, or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An ammonia-air mixer which is easy to disassemble, comprising a first cylinder (1) and a second cylinder (2), characterized in that, The first cylinder (1) and the second cylinder (2) are connected by threads, the interior of the distal end of the first cylinder (1) and the second cylinder (2) is provided with a limiting device, the limiting device is installed with a limiting plate (5), the middle part between the two limiting plates (5) is installed with an extension rod (6), the extension rod (6) is provided with a blade (7), the side of the second cylinder (2) is provided with an air inlet pipe (12), the air inlet pipe (12) is installed with an ammonia pipe (13) which penetrates into the interior of the second cylinder (2).

2. An ammonia-air mixer according to claim 1, wherein The distal end of the first cylinder (1) and the second cylinder (2) is provided with a butt joint (3), the butt joint (3) is provided with a sealing gasket (14).

3. The ammonia-air mixer of claim 1, wherein, The limiting device includes two limiting blocks (4) which are arranged side by side, the two limiting blocks (4) are installed with a limiting plate (5), the limiting block (4) is protruded from the inner wall of the first sleeve and the second sleeve, the length of the two limiting plates (5) is respectively matched with the diameter of the interior of the first cylinder (1) and the second cylinder (2).

4. The ammonia-air mixer of claim 1, wherein, The extension rod (6) includes two rod bodies which are both semicircular in cross section, the cross sections of the two rod bodies form a circle, the side of the two rod bodies which abut against each other is respectively provided with a matched sliding block (9) and a sliding groove (10), the two rod bodies are connected through the sliding groove (10) and the sliding block (9).

5. An ammonia-air mixer according to claim 4, wherein The distal end of the two rod bodies is respectively fixedly connected with the limiting plate (5), the blade (7) is respectively arranged on the outer wall of the two rod bodies.

6. An ammonia-air mixer according to claim 4, wherein The distal end of the two rod bodies is respectively rotatably connected with the limiting rod, the blade (7) is respectively arranged on the outer wall of the two rod bodies.

7. The ammonia-air mixer of claim 1, wherein, The side wall of the second cylinder (2) is provided with an observation window (11), the side wall of the exterior of the first cylinder (1) and the second cylinder (2) is provided with a prismatic structure (8).

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