Boiler soot blower nozzle

Abstract

The utility model relates to a boiler soot blower nozzle, which belongs to the technical field of soot blowers and comprises a gun barrel, a spray head and a spray hole, the end, located in the boiler, of the gun barrel is provided with a spray head, and a plurality of spray holes are formed in the outer portion of the spray head. A movable plugging assembly for plugging the spray hole by moving is arranged on the spray head; the movable plugging assembly is provided with a buffer pushing assembly which is used for carrying out movable reset buffering on the movable plugging assembly and pushing the movable plugging assembly to move to plug the spraying hole. According to the boiler soot blower nozzle, the arranged driving equipment is connected with the gun barrel, the spray head on the gun barrel is driven to move and rotate to achieve soot blowing through air injection of the spray holes, and after soot blowing is completed, the spray head moves and resets to be matched with the arranged buffer pushing assembly to conduct moving buffering; and the spray head continues to move to push the movable plugging assembly to plug and seal the spray hole through the cache pushing assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of soot blowers, in particular to a boiler soot blower nozzle. Background Art

[0002] The boiler soot blower nozzle is an important component in the boiler system for removing the accumulated ash and sediment inside the boiler. Its main function is to blow the ash away from the heat exchange surface of the boiler through high-pressure steam or air, thereby improving the thermal efficiency and operation safety of the boiler.

[0003] Main characteristics of the soot blower nozzle:

[0004] Material: The nozzle is usually made of high-temperature resistant and corrosion-resistant materials to adapt to the high-temperature and corrosive environment inside the boiler.

[0005] Design: The design of the nozzle needs to consider fluid dynamics to ensure that the air flow can effectively cover all parts of the boiler and achieve the best soot cleaning effect.

[0006] Injection mode: According to the type and working conditions of the boiler, the nozzle can be designed with different injection modes, such as direct injection, rotary injection, etc.

[0007] Among them, the nozzle discharges air for soot blowing through the spray holes. The properties of the ash and sediment generated during the boiler combustion process will affect the blockage situation of the nozzle. If the ash contains more viscous substances or moisture, it is easy to enter the nozzle through the spray holes and adhere to the inner wall, resulting in blockage. Therefore, this application designs a boiler soot blower nozzle that can effectively seal the nozzle when the soot blowing work is not carried out to solve this defect of the prior art. Summary of the Utility Model

[0008] Aiming at the deficiencies of the prior art, the utility model provides a boiler soot blower nozzle, which has the advantages of effectively sealing the nozzle when the soot blowing work is not carried out, etc.

[0009] To achieve the above object, the utility model provides the following technical solution: A boiler soot blower nozzle, comprising a barrel for installing and passing through the boiler, a spray head and spray holes;

[0010] One end of the barrel located inside the boiler is provided with a spray head, and a plurality of spray holes are arranged outside the spray head;

[0011] A movable plugging component for plugging the spray holes by moving is arranged on the spray head;

[0012] A buffer and pushing component for moving and resetting the movable plugging component and pushing the movable plugging component to move to plug the spray holes is arranged on the movable plugging component.

[0013] As a preferred technical solution of the present utility model, the movable plugging assembly includes a movable member, an elastic plugging member, and an elastic reset member;

[0014] The movable member,

[0015] includes a plurality of directional sliding grooves provided outside the nozzle, and a sliding sleeve slides along a track between the directional sliding grooves.

[0016] By adopting the above technical solution, the sliding sleeve is realized to perform directional sliding movement in the directional sliding groove.

[0017] As a preferred technical solution of the present utility model, the elastic plugging member,

[0018] includes a plurality of mounting grooves provided on the inner wall of the sliding sleeve and corresponding to the spray holes one by one. A spring is installed in the mounting groove, and the other end of the spring is installed with a plugging ball for plugging and sealing the spray hole.

[0019] By adopting the above technical solution, it is realized that the plugging ball plugs and seals the spray hole by the elastic telescopic and resetting action of the spring.

[0020] As a preferred technical solution of the present utility model, the elastic reset member,

[0021] includes a plurality of placement grooves provided in the sliding sleeve. A telescopic spring is installed in the placement groove, and the other end of the telescopic spring is installed with a reset moving rod that passes through the sliding sleeve and is connected to the nozzle.

[0022] By adopting the above technical solution, the movable and elastic contraction and reset of the sliding sleeve are realized.

[0023] As a preferred technical solution of the present utility model, when the telescopic spring and the spring are in an extended state, the plugging ball is located in the spray hole to plug the spray hole, and when the telescopic spring is in a natural contracted state, the plugging ball is separated from the spray hole.

[0024] By adopting the above technical solution, it is convenient to realize the plugging and separation of the spray hole by the elastic contraction action of the telescopic spring.

[0025] As a preferred technical solution of the present utility model, the buffer pushing assembly,

[0026] includes a plurality of hollow cylinders. A strong spring is installed in the hollow cylinder, and the other end of the strong spring is installed with a pushing rod that passes through the hollow cylinder and the boiler and contacts the sliding sleeve;

[0027] Wherein, a telescopic rod is installed between the hollow cylinder and the pushing rod.

[0028] By adopting the above technical solution, caching is achieved when the sliding sleeve moves and resets, and the sliding sleeve is effectively pushed to move, so that the plugging ball plugs the spray holes.

[0029] As a preferred technical solution of the present utility model, the telescopic rod is composed of a movable cylinder and a moving slide rod. The movable cylinder and the moving slide rod slide relative to each other and are not separated from each other. One end of the movable cylinder and the moving slide rod away from each other is respectively connected to the hollow cylinder and the pushing rod.

[0030] By adopting the above technical solution, the telescopic and retractable functions of the telescopic rod are achieved.

[0031] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0032] For the boiler soot blower nozzle, by connecting the gun barrel with the driving device, driving the spray head on the gun barrel to move and rotate to blow soot through the spray holes, after the soot blowing is completed, the spray head moves and resets to cooperate with the set buffer pushing component for moving buffering, and at the same time, the spray head continues to move to push the moving plugging component through the buffer pushing component to plug and seal the spray holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a perspective view of the present utility model;

[0034] Figure 2 is an overall perspective view of the sliding sleeve of the present utility model;

[0035] Figure 3 is of the present utility model Figure 2 sectional perspective view;

[0036] Figure 4 is a sectional perspective view of the present utility model.

[0037] In the figure: 1, gun barrel; 2, spray head; 3, spray hole; 4, directional sliding groove; 5, sliding sleeve; 6, installation groove; 7, spring; 8, plugging ball; 9, placement groove; 10, telescopic spring; 11, reset moving rod; 12, hollow cylinder; 13, strong spring; 14, telescopic rod; 15, pushing rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0038] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0039] Please refer to Figure 1, A boiler soot blower nozzle in this embodiment includes a barrel 1, a spray head 2, and spray holes 3 for installing and passing through the boiler.

[0040] One end of the barrel 1 is installed with a driving device in an existing boiler that drives the barrel 1 to rotate and move.

[0041] The end of the barrel 1 located inside the boiler is threadedly connected and communicated with the spray head 2, and two symmetrically distributed spray holes 3 are opened outside the spray head 2.

[0042] Please refer to Figures 2 to 3 , In this embodiment, a moving plugging component is provided on the spray head 2 to plug the spray holes 3 by moving.

[0043] It should be noted that the moving plugging component includes a moving part, an elastic plugging part, and an elastic reset part.

[0044] Moving part,

[0045] It includes a plurality of equidistantly distributed directional sliding grooves 4 opened outside the spray head 2, and a sliding sleeve 5 slides along the track between the directional sliding grooves 4.

[0046] The elastic plugging part,

[0047] It includes a plurality of installation grooves 6 opened on the inner wall of the sliding sleeve 5 and corresponding to the spray holes 3 one by one. A spring 7 is installed and fixed in the installation groove 6, and the other end of the spring 7 is installed and fixed with a plugging ball 8 for plugging and sealing the spray holes 3.

[0048] Among them, the plugging ball 8 has the same diameter as the spray hole 3 to ensure the plugging and sealing effect of the spray hole 3. The plugging ball 8 is arranged in a spherical shape to facilitate the movement of the plugging ball 8 from the spray hole 3 and reduce the movement resistance.

[0049] The elastic reset part,

[0050] It includes a plurality of placement grooves 9 opened in the sliding sleeve 5. A telescopic spring 10 is installed and fixed in the placement groove 9, and the other end of the telescopic spring 10 is installed and fixed with a reset moving rod 11 that passes through the sliding sleeve 5 and is connected and fixed to the spray head 2.

[0051] When the telescopic spring 10 and the spring 7 are in an extended state, the plugging ball 8 is located in the spray hole 3 to plug the spray hole 3. When the telescopic spring 10 is in a natural contracted state, the plugging ball 8 is separated from the spray hole 3.

[0052] Please refer to Figure 4, in the present embodiment, a buffer and push component is provided on the movable plugging component to perform a moving reset buffer on the movable plugging component and push the movable plugging component to move to plug the spray hole 3.

[0053] It should be noted that the buffer and push component

[0054] includes a plurality of hollow cylinders 12. A strong spring 13 is fixedly installed inside the hollow cylinder 12. The other end of the strong spring 13 is fixedly installed with a push rod 15 that passes through the hollow cylinder 12 and the boiler and contacts the sliding sleeve 5.

[0055] The elastic force of the strong spring 13 is greater than the elastic force of the strong spring 10, and at the same time, it can overcome the frictional force of the sliding sleeve 5 moving in the directional chute 4, avoiding the phenomenon that when the sliding sleeve 5 contacts the push rod 15, the sliding sleeve 5 continues to move and presses the push rod 15, causing the strong spring 10 to be compressed.

[0056] Wherein, a telescopic rod 14 is fixedly installed between the hollow cylinder 12 and the push rod 15.

[0057] The telescopic rod 14 is composed of a movable cylinder and a moving slide rod. The movable cylinder and the moving slide rod slide relative to each other and are not separated from each other. The ends of the movable cylinder and the moving slide rod away from each other are respectively connected and fixed to the hollow cylinder 12 and the push rod 15.

[0058] The working principle of the above embodiment is as follows:

[0059] When using for soot blowing treatment, while the driving device drives the gun barrel 1 to rotate and move, it synchronously drives the nozzle 2 to move and rotate, so that the push rod 15 is separated from the sliding sleeve 5. Then, when the telescopic spring 10 is in a natural contraction state, the sliding sleeve 5 is located outside the spray hole 3, and the plugging ball 8 is driven to be separated from the spray hole 3, facilitating the movement and rotation of the nozzle 2 while enabling steam to spray out from the spray hole 3 to perform soot blowing treatment on the inner wall of the boiler;

[0060] After the soot blowing is completed, while the driving device drives the gun barrel 1 to move and the nozzle 2 to move back to its original position until the sliding sleeve 5 moves and contacts the push rod 15, by using the elastic telescopic action of the strong spring 13 and the telescopic action of the telescopic rod 14, the push rod 15 performs a moving buffer on the sliding sleeve 5;

[0061] In addition, after the push rod 15 buffers the movement of the sliding sleeve 5, the spray head 2 continues to move back, causing the push rod 15 to push the sliding sleeve 5 to move along the directional sliding groove 4, synchronously driving the reset moving rod 11 to move, and the telescopic spring 10 to stretch synchronously. When the sliding sleeve 5 moves to make the plugging ball 8 move to the spray hole 3, with the elastic stretching effect of the spring 7, the plugging ball 8 is pushed into the spray hole 3 to effectively plug and seal the spray hole 3 (it should be noted that the elastic force of the strong spring 13 is greater than the elastic force of the strong spring 10 and can overcome the frictional force of the sliding sleeve 5 moving in the directional sliding groove 4). Thus, when the soot blowing work is not carried out, the spray head 2 can be effectively plugged and sealed, avoiding the blockage of the spray head 2 caused by particulate dust adhering inside the spray head 2 and affecting the soot blowing and ventilation effect.

Claims

1. A boiler soot blower nozzle, comprising a barrel (1) for installation to pass through the boiler, a nozzle head (2) and spray holes (3); One end of the barrel (1) located inside the boiler is installed with a nozzle head (2), and a plurality of spray holes (3) are arranged outside the nozzle head (2); It is characterized in that: A movable plugging component for plugging the spray holes (3) by moving is arranged on the nozzle head (2); A buffer and pushing component for moving and resetting the movable plugging component and pushing the movable plugging component to move to plug the spray holes (3) is arranged on the movable plugging component.

2. The boiler soot blower nozzle according to claim 1, characterized in that: The movable plugging component includes a movable part, an elastic plugging part and an elastic reset part; The movable part, Comprises a plurality of directional sliding grooves (4) arranged outside the nozzle head (2), and a sliding sleeve (5) slides along a track between the directional sliding grooves (4).

3. The boiler soot blower nozzle according to claim 2, wherein: The elastic plugging part, Comprises a plurality of mounting grooves (6) arranged on the inner wall of the sliding sleeve (5) and corresponding to the spray holes (3) one by one. A spring (7) is installed in the mounting groove (6), and the other end of the spring (7) is installed with a plugging ball (8) for plugging and sealing the spray hole (3).

4. A boiler soot blower nozzle according to claim 3, characterized in that: The elastic reset part, Comprises, A plurality of placing grooves (9) arranged in the sliding sleeve (5). A telescopic spring (10) is installed in the placing groove (9), and the other end of the telescopic spring (10) is installed with a reset moving rod (11) passing through the sliding sleeve (5) and connected to the nozzle head (2).

5. A boiler soot blower nozzle according to claim 4, characterized in that: When the telescopic spring (10) and the spring (7) are in an extended state, the plugging ball (8) is located in the spray hole (3) to plug the spray hole (3). When the telescopic spring (10) is in a natural contracted state, the plugging ball (8) is separated from the spray hole (3).

6. The boiler soot blower nozzle according to claim 2, characterized in that: The buffer and pushing component, Comprises a plurality of hollow cylinders (12). A strong spring (13) is installed in the hollow cylinder (12), and the other end of the strong spring (13) is installed with a pushing rod (15) passing through the hollow cylinder (12) and the boiler and contacting the sliding sleeve (5); Wherein, a telescopic rod (14) is installed between the hollow cylinder (12) and the pushing rod (15).

7. The boiler soot blower nozzle according to claim 6, wherein: The telescopic rod (14) is composed of a movable cylinder and a moving slide rod. The movable cylinder and the moving slide rod slide relative to each other and are not separated from each other. The ends of the movable cylinder and the moving slide rod away from each other are respectively connected to the hollow cylinder (12) and the pushing rod (15).

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