Multi-station self-adjusting anti-blocking nozzle

Abstract

The utility model relates to a multi-station self-adjusting anti-blocking nozzle, which belongs to the technical field of nozzles and comprises a valve body, a power component, an ejector pin and a nozzle. A cavity is formed in the valve body, the nozzle is fixed to the valve body, a spraying cavity communicated with the cavity is formed in the nozzle, and the inner diameter of the spraying cavity is smaller than that of the cavity; the power assembly is fixed to the valve body, is in transmission connection with the ejector pin and is used for driving the ejector pin to move, and the end, away from the power assembly, of the ejector pin can stretch into the cavity or the spraying cavity under driving of the power assembly. According to the multi-station self-adjusting anti-blocking nozzle, the position of the ejector pin in the valve body is adjusted, so that the space for water to pass through in the valve body becomes larger or smaller, and the multi-station self-adjusting anti-blocking nozzle can adjust the diameter of dry fog and can adapt to complex and changeable dust particles on site.

Description

Technical Field

[0001] This utility model belongs to the field of nozzle technology, and specifically relates to a multi-station self-adjusting anti-clogging nozzle. Background Technology

[0002] Dry fog equipment is widely used in dust removal and suppression. It works by combining water and air, spraying a water mist from nozzles. Dust particles combine with the water mist and settle under gravity, achieving a dust suppression effect. However, due to harsh on-site conditions and the fact that the water used is often recycled wastewater or fire-fighting water, dry fog nozzles are prone to clogging, losing their dust suppression effect. Clogging requires manual cleaning, increasing maintenance costs. Some sites use large-diameter nozzles to reduce the probability of clogging, but large-diameter nozzles not only increase water consumption but also result in insufficient water-air combination, significantly reducing their dust suppression effect. Most existing nozzles have fixed nozzle openings, making it impossible to adjust the dry fog diameter and adapt to the complex and varied dust particle types present on-site.

[0003] Therefore, to address the problem that existing nozzles cannot adjust the dry fog diameter and cannot adapt to the complex and varied dust particles on site, a multi-station self-adjusting anti-clogging nozzle is needed. Utility Model Content

[0004] This invention provides a multi-station self-adjusting anti-clogging nozzle to solve the problem that existing nozzles cannot adjust the dry fog diameter and cannot adapt to the complex and ever-changing dust particles on site.

[0005] This utility model is achieved through the following technical solution: a multi-station self-adjusting anti-clogging nozzle, comprising a valve body, a power component, a ejector pin, and a nozzle, wherein;

[0006] The valve body has a cavity, the nozzle is fixed to the valve body, and the nozzle is provided with a spray chamber that communicates with the cavity. The inner diameter of the spray chamber is smaller than the inner diameter of the cavity.

[0007] The power assembly is fixed to the valve body and is connected to the ejector pin for driving the ejector pin to move. The end of the ejector pin away from the power assembly can extend into the cavity or the injection chamber under the drive of the power assembly.

[0008] To better realize this utility model, further optimization is made to the above structure. The power assembly includes a first cylinder and a second cylinder. The first cylinder is fixed on the piston rod of the second cylinder. The piston rods of the first cylinder and the second cylinder have different lengths.

[0009] When the second cylinder is receiving air while the first cylinder is not, the piston rod of the second cylinder can push up the piston rod of the first cylinder.

[0010] To better realize this utility model, further optimizations are made to the above structure. A pin telescopic cavity is provided between the valve body and the moving component, and a mechanical sealing device is provided between the pin telescopic cavity and the valve body.

[0011] To better realize this utility model, further optimizations are made to the above structure. The valve body is provided with air inlet and water inlet on both sides, and the top of the valve body is provided with gas-liquid mixing nozzle. The gas entering through the air inlet and the water entering through the water inlet are mixed through the gas-liquid mixing nozzle.

[0012] To better realize this utility model, further optimizations are made to the above structure. The gas-liquid mixing nozzle is threadedly connected to the atomizing head via a knurled nut, and the atomizing head is detachably connected to the nozzle.

[0013] To better realize this utility model, the above structure is further optimized, and the nozzle is a spiral nozzle that extends along the axial direction of the valve body.

[0014] To better realize this utility model, further optimizations are made to the above structure. The outlet of the cavity inside the gas-liquid mixing nozzle is provided with a multi-stage bayonet, and the end of the ejector pin is provided with a multi-stage locking platform. The multi-stage bayonet and the multi-stage locking platform are matched with each other.

[0015] To better realize this utility model, the above structure is further optimized, and the power component is a stepper motor.

[0016] Compared with the prior art, this utility model has the following advantages:

[0017] This utility model provides a multi-position self-adjusting anti-clogging nozzle, comprising a valve body, a power assembly, a ejector pin, and a nozzle; wherein; the valve body has a cavity, the nozzle is fixed to the valve body, and the nozzle has a spray chamber communicating with the cavity, the inner diameter of the spray chamber being smaller than the inner diameter of the cavity; the power assembly is fixed to the valve body and is drivenly connected to the ejector pin, used to drive the ejector pin to move, and the end of the ejector pin opposite to the power assembly can extend into the cavity or the spray chamber under the drive of the power assembly.

[0018] The above structure, via a power assembly, positions the tip of the ejector pin inside the nozzle, causing the pin to occupy the nozzle's space. In this configuration, the water flow rate and dry mist diameter are relatively small, making it suitable for applications with small dust particles. When the ejector pin is positioned within the valve body via the power assembly, the water flow space within the valve body increases, allowing impurities to be ejected through the spray assembly, thus achieving the nozzle's self-cleaning function. In other words, by adjusting the position of the ejector pin within the valve body, the water flow space within the valve body can be increased or decreased, allowing this multi-position self-adjusting anti-clogging nozzle to adjust the dry mist diameter and adapt to complex and varied dust particle conditions on-site. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a cross-sectional view of the multi-station self-adjusting anti-clogging nozzle in this utility model;

[0021] Figure 2 This is a schematic diagram of the multi-station self-adjusting anti-clogging nozzle in this utility model.

[0022] In the picture:

[0023] 1-Valve body; 2-First cylinder; 3-Second cylinder; 4-Spiral nozzle; 5-Ejector pin; 6-Air inlet; 7-Water inlet; 8-Gas-liquid mixing nozzle; 9-Knurled nut; 10-Atomizing head; 11-Multi-stage bayonet; 12-Multi-stage clamping platform; 13-Mechanical seal device. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Example 1:

[0028] A multi-position self-adjusting anti-clogging nozzle includes a valve body 1, a power assembly, a ejector pin 5, and a nozzle. The valve body 1 has a cavity, and the nozzle is fixed to the valve body 1. The nozzle has a spray chamber communicating with the cavity, and the inner diameter of the spray chamber is smaller than the inner diameter of the cavity. The power assembly is fixed to the valve body 1 and is connected to the ejector pin 5 for driving the ejector pin 5. One end of the ejector pin 5 facing away from the power assembly can extend into the cavity or the spray chamber under the drive of the power assembly.

[0029] The above structure, via a power assembly, positions the end of the ejector pin 5 within the nozzle, causing it to occupy nozzle space. This results in a smaller water flow rate and a smaller dry mist diameter, suitable for applications with small dust particles. When the ejector pin 5 is positioned within the valve body 1 via the power assembly, the water passage space within the valve body 1 increases, allowing impurities to be ejected through the spray assembly, thus achieving a self-cleaning function for the nozzle. In other words, by adjusting the position of the ejector pin 5 within the valve body 1, the water passage space within the valve body 1 can be increased or decreased, allowing the multi-position self-adjusting anti-clogging nozzle to adjust the dry mist diameter and adapt to complex and varying dust particle conditions on-site.

[0030] The power assembly includes a first cylinder 2 and a second cylinder 3. The first cylinder 2 is fixed to the piston rod of the second cylinder 3, and the piston rods of the first cylinder 2 and the second cylinder 3 have different lengths.

[0031] When the second cylinder 3 is intake air while the first cylinder 2 is not intake air, the piston rod of the second cylinder 3 can push up the piston rod of the first cylinder 2. Using a multi-stage cylinder power unit has the advantages of low cost and a small overall size for the multi-position self-adjusting anti-clogging nozzle. Preferably, the piston rod length of the first cylinder 2 is set to 15cm, and the piston rod of the second cylinder 3 is set to 10cm. When only the second cylinder 3 moves, the piston rod of the second cylinder 3 pushes up the piston rod of the first cylinder 2 by 10cm, at which point the ejector pin 5 moves upward by 10cm. When only the first cylinder 2 moves, the piston rod of the first cylinder 2 is pushed up by 15cm, at which point the ejector pin 5 moves upward by 15cm. Thus, the ejector pin 5 can reach two heights through the first cylinder 2 and the second cylinder 3, allowing the ejector pin 5 to be in different positions within the valve body 1.

[0032] A telescopic cavity for the ejector pin 5 is provided between the valve body 1 and the moving component, and a mechanical seal device 13 is provided between the telescopic cavity for the ejector pin 5 and the valve body 1. The mechanical seal device 13 ensures that water inside the valve body 1 will not enter the moving component.

[0033] The valve body 1 has air inlet holes 6 and water inlet holes 7 on both sides, and a gas-liquid mixing nozzle 8 at the top. The gas entering through the air inlet holes 6 and the water entering through the water inlet holes 7 are mixed through the gas-liquid mixing nozzle 8. The gas-liquid mixing nozzle 8 is provided with an air inlet pipe, a water inlet pipe, and a gas-liquid mixing chamber, through which water and gas are mixed.

[0034] The gas-liquid mixing nozzle 8 is threadedly connected to the atomizing head 10 via a knurled nut 9, and the atomizing head 10 is detachably connected to the nozzle. The atomizing head 10 forms a spray of the water and gas mixture, and it is easy to replace when the atomizing head 10 or the nozzle is damaged.

[0035] The nozzle is a spiral nozzle 4, which extends along the axial direction of the valve body 1. After the liquid is ejected from the spiral nozzle 4, it can form a full, uniformly distributed conical spray area.

[0036] The outlet of the cavity within the gas-liquid mixing nozzle 8 is provided with a multi-stage locking slot 11, and the end of the ejector pin 5 is provided with a multi-stage locking platform 12. The multi-stage locking slot 11 and the multi-stage locking platform 12 are matched with each other. The multi-stage locking slot 11 decreases in size from top to bottom, while the multi-stage locking platform 12 increases in size from top to bottom. As the ejector pin moves upward, the area occupied by the ejector pin inside the gas-liquid mixing nozzle 8 gradually increases, and the gap between the ejector pin and the gas-liquid mixing nozzle 8 gradually decreases, resulting in a smaller flow rate of water. That is, the position of the ejector pin 5 within the gas-liquid mixing nozzle 8 is determined by the multi-stage locking slot 11, the multi-stage locking platform 12, and the power assembly, which determines the diameter of the ejector pin 5 within the outlet of the cavity within the gas-liquid mixing nozzle 8. When the diameter of the ejector pin 5 within the outlet is large, the exposed area of ​​the outlet is small, and the flow rate of water is small; when the diameter of the ejector pin 5 within the outlet is small, the exposed area of ​​the outlet is large, and the flow rate of water is large.

[0037] The power component is a stepper motor. When a stepper motor is used, the end of the ejector pin is located inside the valve body 1, increasing the space for water to pass through and allowing impurity particles to be sprayed out through the spray assembly, thus achieving the self-cleaning function of the nozzle. When the ejector pin moves upward until its upper end just contacts the nozzle, the nozzle enters a stepless adjustment mode, allowing for stepless adjustment of the dry fog diameter from large to small. When used in conjunction with a dust concentration detection sensor, the dry fog diameter can be automatically controlled. Furthermore, when impurity particles are large enough to clog or adhere to the nozzle, the upward movement of the upper end of the ejector pin can also push the impurities out of the nozzle.

[0038] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations 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 protection scope of the claims.

Claims

1. A multi-station self-adjusting anti-clogging nozzle, characterized in that: Includes valve body, power assembly, ejector pin, and nozzle, among which; The valve body has a cavity, the nozzle is fixed to the valve body, and the nozzle is provided with a spray chamber that communicates with the cavity. The inner diameter of the spray chamber is smaller than the inner diameter of the cavity. The power assembly is fixed to the valve body and is connected to the ejector pin for driving the ejector pin to move. The end of the ejector pin away from the power assembly can extend into the cavity or the injection chamber under the drive of the power assembly.

2. The multi-station self-adjusting anti-clogging nozzle according to claim 1, characterized in that: The power assembly includes a first cylinder and a second cylinder, wherein the first cylinder is fixed to the piston rod of the second cylinder, and the piston rods of the first cylinder and the second cylinder have different lengths. When the second cylinder is receiving air while the first cylinder is not, the piston rod of the second cylinder can push up the piston rod of the first cylinder.

3. The multi-station self-adjusting anti-clogging nozzle according to claim 1, characterized in that: A pin telescopic cavity is provided between the valve body and the power assembly, and a mechanical seal device is provided between the pin telescopic cavity and the valve body.

4. A multi-station self-adjusting anti-clogging nozzle according to claim 1, characterized in that: The valve body has air inlet and water inlet on both sides, and a gas-liquid mixing nozzle at the top of the valve body. The gas entering through the air inlet and the water entering through the water inlet are mixed through the gas-liquid mixing nozzle.

5. A multi-station self-adjusting anti-clogging nozzle according to claim 4, characterized in that: The gas-liquid mixing nozzle is threadedly connected to the atomizing head via a knurled nut, and the atomizing head is detachably connected to the nozzle.

6. A multi-station self-adjusting anti-clogging nozzle according to claim 1, characterized in that: The nozzle is a spiral nozzle, which extends along the axial direction of the valve body.

7. A multi-station self-adjusting anti-clogging nozzle according to claim 4, characterized in that: The outlet of the gas-liquid mixing nozzle cavity is provided with a multi-stage locking slot, and the end of the ejector pin is provided with a multi-stage locking platform. The multi-stage locking slot and the multi-stage locking platform are matched with each other.

8. A multi-station self-adjusting anti-clogging nozzle according to claim 1, characterized in that: The power component is a stepper motor.

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