Anti-blocking exhaust gas airflow dust remover nozzle

Abstract

The utility model provides an anti-clogging exhaust gas flow dust remover nozzle, which relates to the technical field of dust removers, and comprises an installation barrel, the lower end of the installation barrel is rotatably connected with a spray head, the interior of the installation barrel is fixedly provided with a clogging cleaning assembly, and the clogging cleaning assembly comprises a telescopic cylinder body, a clogging cleaning piston, a piston ejector rod and a rotating assembly. The rotating assembly comprises an I-shaped ring and a supporting ring rotationally connected to the I-shaped ring, a plurality of guide rods are fixed to the outer wall of the supporting ring, a plurality of spiral grooves formed at equal intervals are formed in the inner wall of the mounting barrel, the guide rods slidably abut against the interiors of the spiral grooves, and a guide beam is fixed to the upper side of the spray head. The supporting ring is slidably arranged on the guide beam in a sleeving mode, and a plurality of communicating holes are formed in the upper end of the side wall of the telescopic cylinder body. When the spray head is blocked, water pressure in the mounting cylinder can push the piston ejector rod to move downwards to push hardened dust blocked in the spray head out, and the anti-blocking purpose is achieved.

Description

Technical Field

[0001] This utility model relates to the field of dust collector technology, specifically to a nozzle for an anti-clogging exhaust gas airflow dust collector. Background Technology

[0002] An electrostatic precipitator is a dust removal device that uses a high-voltage electric field to ionize the exhaust gas flow, causing dust particles to become charged and adsorbed onto the surface of the collecting electrode. It is widely used in the treatment of industrial exhaust gas flow. However, the dust particles in the exhaust gas flow can harden and clump together on the surface of the collecting electrode, reducing the efficiency of the electric field and even causing a short circuit in the equipment. It is necessary to periodically spray water through nozzles to form a liquid film or water mist to wash the surface of the collecting electrode, so that the dust is directly carried away by the water flow, avoiding secondary dust generation caused by rapping.

[0003] During the use of electrostatic precipitators, hygroscopic dust may adhere to and clump onto the nozzles, causing blockages, which will reduce the spraying effect and eventually lead to failure. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an anti-clogging exhaust gas airflow dust collector nozzle, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A dust collector nozzle for preventing clogging of exhaust gas includes an installation cylinder. A nozzle is rotatably connected to the lower end of the installation cylinder. A clogging-clearing assembly is fixedly installed inside the installation cylinder. The clogging-clearing assembly includes a telescopic cylinder, a clogging-clearing piston, a piston rod, and a rotating assembly. The telescopic cylinder is fixed to the inner wall of the installation cylinder. The clogging-clearing piston is slidably installed inside the telescopic cylinder. The piston rod is fixed to the lower side of the clogging-clearing piston and extends downward. The piston rod is positioned directly above the nozzle. The rotating assembly includes an H-shaped ring integrally formed and fixed to the middle of the piston rod and a support ring rotatably connected to the H-shaped ring. Several guide rods are fixed on the outer wall of the support ring. Several equally spaced spiral grooves are formed on the inner wall of the installation cylinder. The guide rods slide and abut against the spiral grooves. A guide beam is fixed to the upper side of the nozzle, and the support ring slides and is sleeved on the guide beam.

[0009] Preferably, the unblocking piston divides the telescopic cylinder into an upper connecting space and a lower sealed space, and the upper end of the side wall of the telescopic cylinder is provided with a plurality of connecting holes communicating with the connecting space.

[0010] Preferably, the nozzle has a water spray hole in the middle, the piston rod slides through the water spray hole, and the lower outer edge of the piston rod has a number of protruding teeth.

[0011] Preferably, a funnel-shaped centrifugal conical groove is provided on the lower side of the water spray hole, and the inner diameter of the centrifugal conical groove gradually increases from top to bottom.

[0012] Preferably, the upper side of the outer wall of the piston rod is provided with several axial guide grooves, the lower side of the telescopic cylinder is provided with a guide sealing ring that mates with the piston rod, and the inner wall of the guide sealing ring is provided with an inner protrusion that slides with the axial guide groove.

[0013] (III) Beneficial Effects

[0014] This invention provides a nozzle for an anti-clogging exhaust gas airflow dust collector. It has the following beneficial effects:

[0015] 1. In this utility model, during the water spraying process, the pressure in the connecting space is the same as the high-pressure water pressure of the installation cylinder, which will push the unblocking piston to squeeze the air in the sealed space and move it downward. At this time, the piston rod is above the water spray hole and is in a connected state, so water can be sprayed normally. At this time, the guide rod slides in the spiral groove and rotates downward, driving the nozzle to rotate. The centrifugal force generated during the rotation can throw the water out along the side wall of the centrifugal cone groove, which can knock off the dust attached to the lower side of the water spray hole.

[0016] 2. When the water spraying stops, the pressure inside the cylinder returns to zero. The air pressure in the sealed space will push the reset and unblocking piston to reset. At this time, the guide rod slides in the spiral groove and rotates upward, driving the nozzle to rotate in the opposite direction. Centrifugal force can dry the water droplets attached to the centrifugal cone groove, preventing hygroscopic dust from adhering to the water spray hole.

[0017] 3. When the spray hole is blocked, the pressure inside the installation cylinder gradually increases, pushing the unblocking piston to move down until the piston rod moves down and pushes the blocked dust out of the spray hole. During this process, the piston rod drives the nozzle to rotate, so that the nozzle and the piston rod rotate relative to each other. The lower end of the piston rod rotates and rubs against the hardened dust blocking the spray hole, which can push the hardened dust out smoothly. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the nozzle structure of an anti-clogging exhaust gas airflow dust collector according to the present invention;

[0019] Figure 2 This is a schematic diagram of the unblocking component in this utility model;

[0020] Figure 3 This is a schematic diagram of the piston rod structure in this utility model;

[0021] Figure 4 This is a cross-sectional view of the mounting cylinder in this utility model.

[0022] In the diagram: 1. Mounting cylinder; 2. Water inlet pipe; 3. Spiral groove; 4. Nozzle; 5. Centrifugal cone groove; 6. Telescopic cylinder; 7. Unblocking piston; 8. Piston rod; 9. Guide sealing ring; 10. Connecting hole; 11. Convex tooth block; 12. I-shaped ring; 13. Support ring; 14. Guide rod; 15. Guide beam; 16. Guide ring. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] This utility model embodiment provides a nozzle for an anti-clogging exhaust gas airflow dust collector, such as... Figure 4 As shown, it includes an installation cylinder 1, an inlet pipe 2 connected to the upper side of the installation cylinder 1, a rotating groove provided on the lower edge of the installation cylinder 1, and a plurality of equally spaced spiral grooves 3 opened on the inner circumference of the installation cylinder 1.

[0025] like Figure 1-3 As shown, a nozzle 4 is rotatably installed in the rotating groove. A water spray hole is provided in the middle of the nozzle 4. A trumpet-shaped centrifugal cone groove 5 is provided on the lower side of the water spray hole. The inner diameter of the centrifugal cone groove 5 gradually increases from top to bottom. An installation ring is integrally formed on the upper end of the outer wall of the nozzle 4. The installation ring is rotatably installed in the rotating groove.

[0026] An anti-blocking assembly is fixedly installed inside the mounting cylinder 1. The anti-blocking assembly includes a telescopic cylinder 6, an anti-blocking piston 7, a piston rod 8, and a rotating assembly. The telescopic cylinder 6 is fixed to the upper inner wall of the mounting cylinder 1 and extends downwards. A guide sealing ring 9 is provided on the lower side of the telescopic cylinder 6. The anti-blocking piston 7 is slidably installed inside the telescopic cylinder 6, dividing the telescopic cylinder 6 into an upper communicating space and a lower sealed space. The upper end of the side wall of the telescopic cylinder 6 is provided with several communicating holes 10 communicating with the communicating space, allowing the pressure in the communicating space to be controlled by the pressure inside the mounting cylinder 1. The water spray pressure remains consistent. When nozzle 4 is not spraying, the pressure in the connecting space is at its minimum, and the air pressure in the sealed space is balanced with the pressure in the connecting space. At this time, the unblocking piston 7 is at the highest point of the telescopic cylinder 6, which is position one. The unblocking piston 7 can be pushed up and down by the pressure difference between the connecting space and the sealed space, so that the piston rod 8 is on the telescopic cylinder 6. The piston rod 8 is fixed to the lower side of the unblocking piston 7 and extends downward. Several axial guide grooves are opened on the upper side of the outer wall of the piston rod 8. The outer diameter of the piston rod 8 is smaller than the inner diameter of the water spray hole, and the unblocking is formed between the piston rod 8 and the water spray hole. The piston rod 8 has several protruding teeth 11 on its lower outer edge for cutting and grinding dust. The lower end of the telescopic cylinder 6 has a guide sealing ring 9 that mates with the piston rod 8. The inner wall of the guide sealing ring 9 has an inner protrusion that slides into the axial guide groove. The inner protrusion and the axial guide groove slide in a circumferential direction to limit the movement of the piston rod 8, allowing it to slide vertically. During normal water spraying, the water pressure inside the mounting cylinder 1 pushes the unblocking piston 7 downwards a certain distance. At this time, the lower end of the piston rod 8 is directly above the water spray hole, enabling normal water spraying. At this time, the unblocking piston 7 is in position two inside the telescopic cylinder 6. When the water spray hole is blocked, the pressure of the mounting cylinder 1 will gradually increase. By increasing the pressure, the unblocking piston 7 will continue to slide downward until the lower end of the piston rod 8 penetrates into the water spray hole, pushing the hardened dust out of the water spray hole. At this time, the unblocking piston 7 is in position three inside the telescopic cylinder 6, so that the mounting cylinder 1 is connected to the outside through the unblocking gap. The high pressure water is quickly depressurized from the unblocking gap, so that the pressure inside the mounting cylinder 1 reaches the water spray pressure. The air pressure in the sealed space resets the unblocking piston 7 to position two, thus achieving the purpose of unblocking the water spray hole.

[0027] like Figure 3As shown, the rotating assembly includes an I-shaped ring 12 integrally formed and fixed in the middle of the piston rod 8 and a support ring 13 rotatably connected to the I-shaped ring 12. Several guide rods 14 are fixed on the outer wall of the support ring 13. The guide rods 14 slide and abut against the spiral groove 3. Several guide beams 15 are fixed on the upper circumference of the nozzle 4. A guide ring 16 is fixed at the upper end of the guide beam 15. The guide ring 16 is connected to the lower side of the outer wall of the telescopic cylinder 6. Several sliding holes corresponding to the guide beams 15 are provided on the support ring 13. The sliding holes are slidably fitted onto the guide beams 15.

[0028] Working principle:

[0029] In this invention, when the nozzle is not spraying water, the pressure inside the mounting cylinder 1 is at its lowest value. At this time, the pressure in the sealed space and the connected space reaches a balance value, and the unblocking piston 7 is in position one inside the telescopic cylinder 6. When water needs to be sprayed, high-pressure water is connected to the mounting cylinder 1 through the water inlet pipe 2, so that the pressure inside the mounting cylinder 1 quickly reaches the water spraying pressure. At this time, the water spraying pressure is higher than the air pressure in the sealed space, pushing the unblocking piston 7 to slide to position two inside the telescopic cylinder 6. During this process, the rotating component moves down synchronously with the piston rod 8. During the downward translation of the guide rod 14, it rotates synchronously under the guidance of the side wall of the spiral groove 3. The guide rod 14 drives the nozzle 4 to rotate quickly a certain number of times on the lower side of the mounting cylinder 1 through the support ring 13 and the guide beam 15 and keeps it stable. During the rotation, centrifugal force is generated, which throws some water out along the centrifugal cone groove 5, impacting the dust on the side wall of the centrifugal cone groove 5 and washing away the dust attached to the side wall of the centrifugal cone groove 5.

[0030] When the water spraying stops, the pressure inside the mounting cylinder 1 quickly returns to its lowest value. The air pressure in the sealed space is higher than the water pressure inside the mounting cylinder 1, which quickly pushes the unblocking piston 7 upward to position one. The guide beam 15 rotates rapidly in the reverse direction in the spiral groove 3, causing the nozzle 4 to rotate rapidly in the reverse direction. This can quickly shake off the water adhering to the centrifugal cone groove 5, minimizing the residual water in the centrifugal cone groove 5 and reducing the possibility of hygroscopic dust adhering to the inner wall of the centrifugal cone groove 5.

[0031] When the spray nozzle becomes clogged, the pressure inside the mounting cylinder 1 gradually increases. This pressure change pushes the unclogging piston 7 to position three within the telescopic cylinder 6. At this point, the lower end of the piston rod 8 extends into the spray nozzle, pushing out the dust that has hardened inside. High-pressure water from the mounting cylinder 1 then rapidly sprays out from the unclogging gap, forming a high-pressure jet that impacts and cleans the remaining dust on the inner wall of the spray nozzle. Due to the pressure relief in the unclogging gap, the water pressure in the mounting cylinder 1 quickly returns to the spray pressure. At this point, the air pressure in the sealed space is higher than the spray pressure inside the mounting cylinder 1, causing the unclogging piston 7 to slide to position two within the telescopic cylinder 6, enabling normal water spraying. During this process, as the piston rod 8 slides down, the side wall of the spiral groove 3 pushes the nozzle 4 to rotate. The dust hardened inside the spray nozzle rotates with the protruding teeth 11 on the lower outer edge of the piston rod 8, creating a cutting and grinding effect, preventing the hardened dust from being too hard to push out.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A nozzle for an anti-clogging exhaust gas dust collector, comprising an mounting cylinder, characterized in that: A nozzle is rotatably connected to the lower end of the mounting cylinder. A blockage-clearing assembly is fixedly installed inside the mounting cylinder. The blockage-clearing assembly includes a telescopic cylinder, a blockage-clearing piston, a piston rod, and a rotating assembly. The telescopic cylinder is fixed to the inner wall of the mounting cylinder. The blockage-clearing piston is slidably installed inside the telescopic cylinder. The piston rod is fixed to the lower side of the blockage-clearing piston and extends downward. The piston rod is positioned directly above the nozzle. The rotating assembly includes an H-shaped ring integrally formed and fixed to the middle of the piston rod and a support ring rotatably connected to the H-shaped ring. Several guide rods are fixed on the outer wall of the support ring. Several equally spaced spiral grooves are opened on the inner wall of the mounting cylinder. The guide rods slide and abut against the spiral grooves. A guide beam is fixed to the upper side of the nozzle. The support ring slides and is sleeved on the guide beam.

2. The nozzle of the anti-clogging exhaust gas dust collector according to claim 1, characterized in that: The unblocking piston divides the telescopic cylinder into an upper connecting space and a lower sealed space. The upper end of the side wall of the telescopic cylinder is provided with several connecting holes that communicate with the connecting space.

3. The nozzle of the anti-clogging exhaust gas airflow dust collector according to claim 2, characterized in that: The nozzle has a water spray hole in the middle, and the piston rod slides through the water spray hole. The lower outer edge of the piston rod has several protruding teeth.

4. The nozzle of the anti-clogging exhaust gas airflow dust collector according to claim 3, characterized in that: A trumpet-shaped centrifugal conical groove is provided on the lower side of the water spray hole, and the inner diameter of the centrifugal conical groove gradually increases from top to bottom.

5. The nozzle of the anti-clogging exhaust gas airflow dust collector according to claim 4, characterized in that: The piston rod has several axial guide grooves on its outer wall. The lower side of the telescopic cylinder is provided with a guide sealing ring that mates with the piston rod. The inner wall of the guide sealing ring is provided with an inner protrusion that slides with the axial guide groove.

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