Boiler soot blower lift valve

Abstract

The utility model relates to a lifting valve of a boiler soot blower, which belongs to the technical field of boiler soot blowers and comprises a valve body, an adjusting head, a valve rod, a spring, a movable hinge seat, a fixed hinge seat and a connecting arm. The adjusting head and the valve rod are installed on the valve body, a spring is installed between the valve rod and the valve body, the valve rod and the valve body are provided with a movable hinge seat and the fixed hinge seat respectively, and a connecting arm is hinged between the movable hinge seat and the fixed hinge seat. The valve body is provided with a protection assembly used for conducting sealing protection on the connecting position of the spring and the connecting arm and storing lubricating oil. According to the boiler soot blower lift valve, sealing protection and lubrication are effectively conducted on the connecting positions of the spring, the movable hinge base and the connecting arm and the connecting position of the fixed hinge base and the connecting arm through the arranged protection assembly, meanwhile, chippings generated during work are conveniently collected, stored and treated through the arranged collection assembly, the lift valve is prevented from being stuck during operation, and the service life is prolonged.

Description

Technical Field

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

[0002] The boiler soot blower lift valve is an important component in the boiler system for controlling and regulating the working state of the soot blower. Its main function is to control the start, stop and regulation of the soot blower by controlling the flow of steam or air, so as to effectively remove the ash and deposits inside the boiler.

[0003] The lift valve usually consists of a valve body, a valve stem, a valve flap and a driving device, etc. Its working principle is as follows:

[0004] Opening: When ash cleaning is required, the control system sends a signal, and the driving device drives the connecting arm to rotate, so that the valve flap opens, allowing steam or air to flow into the soot blower.

[0005] Ash cleaning: High-pressure steam or air is ejected through the soot blower nozzle to form a strong air flow, which blows the ash and deposits inside the boiler away from the heat exchange surface.

[0006] Closing: After the ash cleaning is completed, the control system sends a signal again to close the lift valve and stop the flow of steam or air.

[0007] Based on the above principle, when performing switch control, the connecting arm needs to rotate to compress and reset the spring on the valve stem. When the connecting arm rotates, it is extremely easy to cause wear and corrosion. At the same time, the spring is exposed to the outside and is easy to be affected by moisture and rust, thus reducing the service life of the lift valve and easily causing the phenomenon of working jamming. Therefore, this application designs a boiler soot blower lift valve with a protective lubrication structure to solve this defect of the existing technology. Content of the Utility Model

[0008] Aiming at the deficiencies of the prior art, the utility model provides a boiler soot blower lift valve, which has the advantages of having a protective lubrication structure, etc.

[0009] To achieve the above object, the utility model provides the following technical solution: A boiler soot blower lift valve, including a valve body, an adjusting head, a valve stem, a spring, a movable hinge seat, a fixed hinge seat and a connecting arm;

[0010] The adjusting head and the valve stem are installed on the valve body. A spring is installed between the valve stem and the valve body. A movable hinge seat and the fixed hinge seat are respectively installed on the valve stem and the valve body. A connecting arm is hinged between the movable hinge seat and the fixed hinge seat;

[0011] The valve body is provided with a protective component for sealing and protecting the connection part of the spring and the connecting arm and storing lubricating oil;

[0012] A collection component for collecting wear debris is provided on the protection component.

[0013] As a preferred technical solution of the present utility model, the protection component,

[0014] comprises a telescopic dust-proof rubber sleeve installed between the valve body and the valve stem and located outside the spring, and an oil storage seat installed between the outside of the movable hinge seat and the fixed hinge seat. An elastic telescopic sealing sleeve wrapping the outside of the connecting arm is installed on the oil storage seat.

[0015] Adopting the above technical solution, the spring, the joints of the movable hinge seat and the fixed hinge seat with the valve stem are sealed and protected.

[0016] As a preferred technical solution of the present utility model, the oil storage seat and the elastic telescopic sealing sleeve form a closed system. A transparent indicator strip is embedded on the surface of the oil storage seat, and lubricating oil is stored in the oil storage seat.

[0017] Adopting the above technical solution, the joints of the movable hinge seat and the fixed hinge seat with the valve stem are effectively lubricated, and at the same time, it is convenient to observe the storage amount of the stored lubricating oil.

[0018] As a preferred technical solution of the present utility model, the collection component includes a collection and debris removal part and an adjustment and sealing part;

[0019] The collection and debris removal part,

[0020] comprises a slag discharge pipe connected to the oil storage seat. The other end of the slag discharge pipe is communicated with a transparent slag storage cylinder connected to the valve body. A slag discharge head is provided outside the transparent slag storage cylinder, and a switching valve is provided on the slag discharge head.

[0021] Adopting the above technical solution, the debris generated by wear during work is collected.

[0022] As a preferred technical solution of the present utility model, the adjustment and sealing part,

[0023] comprises an isolation plate installed inside the transparent slag storage cylinder above the slag discharge head. A plurality of through holes are opened on the isolation plate, and a stainless steel threaded rod passing through the transparent slag storage cylinder rotates at the center of the isolation plate;

[0024] Wherein, a plurality of telescopic rods are installed on the isolation plate, and a moving plate threadedly connected to the stainless steel threaded rod is installed between the other ends of the telescopic rods. A plurality of sealing covers corresponding to the through holes one by one and having the same center of the circle are installed on the moving plate.

[0025] With the above technical solution, it is realized that the collected debris is discharged by adjusting the seal.

[0026] As a preferred technical solution of the present utility model, the diameter of the sealing cover is larger than the diameter of the perforation. When the telescopic rod is in a contracted state, the sealing cover seals the perforation.

[0027] With the above technical solution, the adaptive sealing between the sealing cover and the perforation is realized.

[0028] As a preferred technical solution of the present utility model, a threaded cylinder threadedly connected to the stainless steel threaded rod is embedded and installed in the moving disk, and a sealing hole adapted to the stainless steel threaded rod is provided on the transparent slag storage cylinder.

[0029] With the above technical solution, when the stainless steel threaded rod is rotated, the moving disk can be screwed in and out.

[0030] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0031] For the lifting valve of the boiler soot blower, while effectively protecting and lubricating the spring, the joints between the movable hinge seat, the fixed hinge seat and the connecting arm through the provided protection component, the provided collection component is convenient for collecting, storing and processing the debris generated during work, avoiding jamming during the operation of the lifting valve and improving the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a perspective view of the present utility model;

[0033] Figure 2 is a partially sectional perspective view of the present utility model;

[0034] Figure 3 is a side sectional perspective view of the present utility model;

[0035] Figure 4 is a sectional perspective view of the transparent slag storage cylinder of the present utility model.

[0036] In the figure: 1, valve body; 2, adjusting head; 3, valve rod; 4, spring; 5, movable hinge seat; 6, fixed hinge seat; 7, connecting arm; 8, telescopic dust-proof rubber sleeve; 9, oil storage seat; 10, elastic telescopic sealing sleeve; 11, transparent indicator strip; 12, slag discharge pipe; 13, transparent slag storage cylinder; 14, isolation disk; 15, perforation; 16, slag discharge head; 17, on-off valve; 18, stainless steel threaded rod; 19, moving disk; 20, telescopic rod; 21, sealing cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0037] 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. Apparently, 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.

[0038] Please refer to Figures 1 to 2 , a lifting valve of a boiler soot blower in this embodiment includes a valve body 1, an adjusting head 2, a valve rod 3, a spring 4, a movable hinge seat 5, a fixed hinge seat 6, and a connecting arm 7.

[0039] The adjusting head 2 is threadedly connected to the outside of the valve body 1, the valve rod 3 is movably connected to the valve body 1, a spring 4 is installed and fixed between the outside of the valve rod 3 and the valve body 1, a valve flap is installed at one end of the valve rod 3 located inside the valve body 1, a movable hinge seat 5 and the fixed hinge seat 6 are respectively installed and fixed on the valve rod 3 and the valve body 1, a connecting arm 7 is hinged between the movable hinge seat 5 and the fixed hinge seat 6, and a driving structure for driving the connecting arm 7 to press the valve rod 3 to move in the existing soot blower technology is installed on the connecting arm 7.

[0040] In this embodiment, a protection component for sealing and protecting the connection between the spring 4 and the connecting arm 7 and storing lubricating oil is provided on the valve body 1.

[0041] It should be noted that the protection component,

[0042] includes a telescopic dust-proof rubber sleeve 8 installed and fixed between the valve body 1 and the valve rod 3 and located outside the spring 4, and an oil storage seat 9 installed and fixed between the outsides of the movable hinge seat 5 and the fixed hinge seat 6. An elastic telescopic sealing sleeve 10 wrapped around the outside of the connecting arm 7 is installed and fixed on the oil storage seat 9.

[0043] The telescopic dust-proof rubber sleeve 8 is a corrugated telescopic pipe, and the elastic telescopic sealing sleeve 10 is an elastic telescopic rubber.

[0044] The oil storage seat 9 and the elastic telescopic sealing sleeve 10 form a closed system. A transparent indicator strip 11 is embedded on the surface of the oil storage seat 9. Lubricating oil is stored in the oil storage seat 9. An oil injection pipe is communicated with the outside of the oil storage seat 9. A seal cover is provided on the oil injection pipe. The transparent indicator strip 11 is a transparent glass, which is convenient for observing the storage situation of the lubricating oil inside the oil storage seat 9, so as to timely add lubricating oil to the oil storage seat 9 through the oil injection pipe by opening the seal cover.

[0045] Please refer to Figures 3 to 4 , a collection component for collecting wear debris is provided on the protection component in this embodiment.

[0046] It should be noted that the collection component includes a collection and impurity removal part and an adjustment and sealing part;

[0047] The collection and impurity removal part,

[0048] includes a slag discharge pipe 12 connected to the oil storage seat 9, the other end of the slag discharge pipe 12 is connected to a transparent slag storage cylinder 13 fixedly connected to the valve body 1. The transparent slag storage cylinder 13 is made of transparent glass. A slag discharge head 16 is connected to the outside of the transparent slag storage cylinder 13, and a switching valve 17 is connected to the slag discharge head 16.

[0049] The adjustment and sealing part,

[0050] includes an isolation disk 14 installed and fixed inside the transparent slag storage cylinder 13 above the slag discharge head 16. The diameter of the isolation disk 14 is equal to the inner diameter of the transparent slag storage cylinder 13. A plurality of through holes 15 are provided on the isolation disk 14. A stainless steel threaded rod 18 passing through the transparent slag storage cylinder 13 rotates circumferentially at the center of the isolation disk 14.

[0051] Among them, a plurality of telescopic rods 20 are installed and fixed on the isolation disk 14. A moving disk 19 threaded to the stainless steel threaded rod 18 is installed and fixed between the other ends of the telescopic rods 20. A plurality of sealing covers 21 corresponding to the through holes 15 one by one vertically and concentrically are installed and fixed on the moving disk 19.

[0052] The diameter of the sealing cover 21 is larger than the diameter of the through hole 15. When the telescopic rod 20 is in a contracted state, the sealing cover 21 seals the through hole 15.

[0053] A threaded cylinder threaded to the stainless steel threaded rod 18 is embedded and fixed in the moving disk 19, and a sealing hole adapted to the stainless steel threaded rod 18 is provided on the transparent slag storage cylinder 13.

[0054] The working principle of the above embodiment is as follows:

[0055] During use, the lifting valve 7 is driven by a driver to rotate on the movable hinge seat 5 and the fixed hinge seat 6, driving the valve stem 3 to move up and down, and realizing the stretching and compression of the spring 4. While driving the valve flap to open and close;

[0056] The setting of the telescopic dust-proof rubber sleeve 8 can effectively isolate and protect the valve stem 3 and the spring 4 while ensuring telescopic movement along with the movement of the valve stem 3 without affecting the operation, avoiding corrosion and jamming of the valve stem 3 and the spring 4 caused by dust and air components;

[0057] The combined sealing system of the oil storage seat 9 and the elastic telescopic sealing sleeve 10 is provided to seal and protect the joints of the movable hinge seat 5 and the fixed hinge seat 6 with the connecting arm 7. At the same time, the elastic telescopic movement of the elastic telescopic sealing sleeve 10 does not affect the movement and rotation of the connecting arm 7. In addition, the oil storage seat 9 stores lubricating oil, which is convenient for lubricating the joints and reducing the wear of the joints during rotation;

[0058] In addition, when the joints of the movable hinge seat 5 and the fixed hinge seat 6 with the connecting arm 7 are rotating, the worn debris enters the transparent slag storage cylinder 13 through the provided slag discharge pipe 12, and at the same time falls into the bottom wall of the transparent slag storage cylinder 13 through the through holes 15 on the isolation disk 14 for storage;

[0059] Moreover, due to the transparent setting of the transparent slag storage cylinder 13, it is convenient to observe the internally collected debris. When it is necessary to discharge the collected debris, while rotating the provided stainless steel threaded rod 18, by using the threaded connection between the moving disk 19 and the stainless steel threaded rod 18, and the telescopic support of the telescopic rod 20 for the moving disk 19, it is realized that when the stainless steel threaded rod 18 rotates, the sealing cover 21 on the moving disk 19 moves downward to seal the through hole 15, and in combination with the isolation disk 14, the transparent slag storage cylinder 13 is partitioned. After isolating the lubricating oil, by opening the switch valve 17, the stored debris can be discharged from the slag discharge head 16, avoiding the mixing of debris in the lubricating oil and increasing wear due to poor lubrication effect.

Claims

1. A boiler soot blower lift valve, comprising a valve body (1), an adjusting head (2), a valve stem (3), a spring (4), a movable hinge seat (5), a fixed hinge seat (6) and a connecting arm (7); The adjusting head (2) and the valve stem (3) are installed on the valve body (1). A spring (4) is installed between the valve stem (3) and the valve body (1). A movable hinge seat (5) and the fixed hinge seat (6) are respectively installed on the valve stem (3) and the valve body (1). A connecting arm (7) is hinged between the movable hinge seat (5) and the fixed hinge seat (6); It is characterized in that: A protection component for sealing and protecting the connection part of the spring (4) and the connecting arm (7) and storing lubricating oil is provided on the valve body (1); A collection component for collecting wear debris is provided on the protection component.

2. The lifting valve of a boiler soot blower according to claim 1, characterized in that: The protection component, comprises a telescopic dust-proof rubber sleeve (8) installed between the valve body (1) and the valve stem (3) and located outside the spring (4), and an oil storage seat (9) installed between the outside of the movable hinge seat (5) and the fixed hinge seat (6). An elastic telescopic sealing sleeve (10) wrapped around the outside of the connecting arm (7) is installed on the oil storage seat (9).

3. The lift valve of a boiler soot blower according to claim 2, wherein: The oil storage seat (9) and the elastic telescopic sealing sleeve (10) form a closed system. A transparent indicator strip (11) is embedded on the surface of the oil storage seat (9), and lubricating oil is stored in the oil storage seat (9).

4. The lifting valve of a boiler soot blower according to claim 2, characterized in that: The collection component includes a collection and debris removal part and an adjustment and sealing part; The collection and debris removal part, comprises a slag discharge pipe (12) connected to the oil storage seat (9). The other end of the slag discharge pipe (12) is communicated with a transparent slag storage cylinder (13) connected to the valve body (1). A slag discharge head (16) is provided outside the transparent slag storage cylinder (13), and a switch valve (17) is provided on the slag discharge head (16).

5. The lift valve of a boiler soot blower according to claim 4, characterized in that: The adjustment and sealing part, comprises an isolation disc (14) installed inside the transparent slag storage cylinder (13) above the slag discharge head (16). A plurality of through holes (15) are formed in the isolation disc (14). A stainless steel threaded rod (18) passing through the transparent slag storage cylinder (13) rotates at the center of the isolation disc (14); Wherein, a plurality of telescopic rods (20) are installed on the isolation disc (14). A moving disc (19) threadedly connected to the stainless steel threaded rod (18) is installed between the other ends of the telescopic rods (20). A plurality of sealing covers (21) corresponding to the through holes (15) one by one and having the same center of the circle are installed on the moving disc (19).

6. The lifting valve of a boiler soot blower according to claim 5, characterized in that: The diameter of the sealing cover (21) is larger than the diameter of the through hole (15). When the telescopic rod (20) is in a contracted state, the sealing cover (21) seals the through hole (15).

7. The lift valve of a boiler soot blower according to claim 5, characterized in that: A threaded cylinder threadedly connected to the stainless steel threaded rod (18) is embedded and installed in the moving disc (19), and a sealing hole adapted to the stainless steel threaded rod (18) is formed in the transparent slag storage cylinder (13).

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