CN218971859U

CN218971859U - Flue gas baffle valve capable of online replacing soft seal

Info

Publication number: CN218971859U
Application number: CN202223257136.XU
Authority: CN
Inventors: 许传贵; 王瑞渠
Original assignee: Shandong Hengtong Chemical Co
Current assignee: Shandong Hengtong Chemical Co
Priority date: 2022-12-02
Filing date: 2022-12-02
Publication date: 2023-05-05
Anticipated expiration: 2032-12-02

Abstract

A soft sealing smoke baffle valve capable of being replaced on line belongs to smoke baffle technology and comprises a main body frame and a flashboard, wherein a window is arranged on the main body frame, and a flashboard capable of being lifted and lowered is arranged in the window. The bottom edge of the flashboard is provided with a hard seal, the bottom edge of the main body frame is provided with a through mounting groove A, a soft seal A matched with the hard seal A is inserted in the mounting groove A, the lower part of the mounting groove A is provided with a detachable sealing pressing plate A, and the sealing pressing plate A is used for supporting the lower side of the soft seal A. The flue gas baffle valve capable of online replacing the soft seal is reasonable in design, ingenious in structure, free of system stopping, time-saving and labor-saving, capable of online replacing the soft seal and ash-removing for workers, and capable of reducing operation difficulty and improving economic benefit.

Description

Flue gas baffle valve capable of online replacing soft seal

Technical Field

The utility model relates to a smoke baffle valve, in particular to a smoke baffle valve capable of online replacing soft seals.

Background

The smoke baffle valve is also called a smoke baffle door, is a vertical lifting opening and closing valve taking a baffle as a closing member, and is mainly used on an inlet and an outlet of an absorption tower or a bypass flue of a smoke desulfurization system or used in a smoke denitration and smoke dust removal system. When the device normally operates, the baffle plate is vertically lifted by the driving device to enable the smoke baffle valve to be in an open state, so that a passage of a flue is formed to ensure smooth discharge of smoke generated by boiler combustion; when the equipment needs to be overhauled, the baffle is put down through the driving device, so that the smoke baffle valve is closed, namely, a flue closes a worker to start overhauling operation.

In the prior art, chinese patent CN201320784346.6 discloses a smoke baffle door, which is mainly composed of an electro-hydraulic drive, a frame and a shutter. The smoke baffle door drives the flashboard to lift and descend through hydraulic driving, the pushing force and the pulling force of electric hydraulic driving are large, the flashboard can be better controlled, a sealing device is further arranged between the flashboard and the frame, and the sealing performance of the flashboard can be greatly improved under the action of the sealing device.

Although the existing smoke baffle door has the advantages, the prior smoke baffle door still has some defects in the practical process: when the sealing surface is used for a long time, accumulated ash can exist on the sealing surface, and under the condition, soft sealing is easy to deform under pressure when the valve is closed, so that the condition of smoke leakage can occur. At present, a worker generally adopts a system to stop and cool, and then the worker enters a flue to clean ash and then replaces a soft seal. The traditional operation mode not only needs to stop operation, but also has higher working strength, consumes time and labor and affects economic benefit.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide the flue gas baffle valve capable of online replacing the soft seal, which is reasonable in design, ingenious in structure, free of system stopping, time-saving and labor-saving, capable of online replacing the soft seal and ash-removing by staff, and capable of reducing operation difficulty and improving economic benefit.

The utility model is realized by the following technical scheme:

the utility model provides a soft sealed flue gas baffle valve can be changed on line, includes main body frame and flashboard, is provided with the window on the main body frame, is provided with the flashboard that can rise, fall in the window. The bottom edge of the flashboard is provided with a hard seal A, the bottom edge of the main body frame is provided with a through mounting groove A, a soft seal A matched with the hard seal A is inserted in the mounting groove A, the lower part of the mounting groove A is provided with a detachable sealing pressing plate A, and the sealing pressing plate A is used for supporting the lower side of the soft seal A.

When impurities such as accumulated ash exist in the baffle valve and influence the sealing performance of the baffle valve, a worker can detach the sealing pressing plate A from the outside at any time, so that the soft sealing A can be taken out, the worker can clean the accumulated ash, and whether to replace the soft sealing A can be determined according to the actual abrasion condition. In the whole process, the system does not need to be stopped, workers do not need to enter a flue, and the system can be operated outside, so that the operation difficulty is greatly reduced, and the influence of stopping on production is avoided.

According to the utility model, the lower sides of the sealing pressing plate A and the mounting groove A are positioned and mounted through self-tapping bolts, the sealing pressing plate A is rotatably connected with an adjusting bolt A in a penetrating mode, and the top of the adjusting bolt A is supported and provided with an inner top plate A attached to the lower side of the soft seal A. The inner top plate A can be moved by the rotation of the adjusting bolt A by a worker, and the soft seal A can be tightly propped or loosened after the inner top plate A moves, so that the tightness between the soft seal A and the hard seal A is adjusted.

The utility model further improves that both ends of the flashboard are respectively provided with a sliding groove, the inner side wall of the main body frame is provided with a sliding rail corresponding to the sliding groove, and the flashboard is in sliding connection with the window through the sliding groove and the sliding rail. The sliding groove is matched with the sliding rail, so that the sliding resistance of the flashboard can be reduced, the opening and closing actions of the flashboard are more flexible, and the jamming is prevented.

The utility model further improves that a hard seal B is arranged in the sliding groove, two side edges of the main body frame are respectively provided with a through installation groove B, a soft seal B which penetrates through the sliding rail and is matched with the hard seal B is arranged in the installation groove B, the outer side part of the installation groove B is provided with a detachable seal pressing plate B, and the seal pressing plate B is used for supporting the outer side of the soft seal B. The staff can dismantle sealing clamp plate B from outside at any time, just so can take out soft seal B, makes things convenient for the deashing or changes soft seal B.

According to the utility model, the sealing pressing plate B is positioned and installed with the outer side of the installation groove B through a self-tapping bolt, an adjusting bolt B is arranged on the sealing pressing plate B in a screwed connection and penetrating mode, and an inner top plate B attached to the outer side of the soft seal B is supported and arranged on the top of the adjusting bolt B. The inner top plate B can be moved by the rotation of the adjusting bolt B by a worker, and the soft seal B can be tightly propped or loosened after the inner top plate B moves, so that the tightness between the soft seal B and the hard seal B is adjusted.

The utility model further improves that the top of the main body frame is provided with a hydraulic cylinder, and a piston rod of the hydraulic cylinder is connected with the flashboard to drive the flashboard to lift and lower. The pushing force and the pulling force of the hydraulic cylinder are large, and the flashboard can be better controlled.

The utility model further improves that the flashboard is thicker in the middle and thinner at two ends. Such a structure of the shutter plate may increase flexibility thereof.

The beneficial effects of the utility model are as follows: when impurities such as accumulated ash exist in the flue gas baffle valve to influence the sealing performance, a worker can detach the sealing pressing plate from the outside at any time, so that the soft seal can be taken out, the worker can clean the accumulated ash, and whether the soft seal is replaced or not can be determined according to the actual abrasion condition. In the whole process, the system does not need to be stopped, workers do not need to enter a flue, and the system can be operated outside, so that the operation difficulty is greatly reduced, and the influence of stopping on production is avoided. And the inner top plate can be moved by rotating the adjusting bolt by a worker, and the soft seal can be propped up or loosened after the inner top plate moves, so that the tight fit degree between the soft seal and the hard seal is adjusted.

Drawings

In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of an embodiment of the present utility model.

Fig. 2 is a schematic side cross-sectional view of a body frame and ram according to an embodiment of the utility model.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is a schematic top cross-sectional view of a body frame and ram according to an embodiment of the utility model.

Fig. 5 is a schematic structural view of a shutter according to an embodiment of the present utility model.

1-a main body frame 101-a window 102-a mounting groove A103-a mounting groove B2-a flashboard 201-a sliding groove 3-a hard seal A301-a hard seal B4-a soft seal A401-a soft seal B5-a sealing pressing plate A501-a sealing pressing plate B6-a self-tapping bolt 7-an inner top plate A701-an inner top plate B8-an adjusting bolt A801-an adjusting bolt B9-a sliding rail 10-a hydraulic cylinder.

Detailed Description

In order to make the objects, features and advantages of the present utility model more obvious and understandable, the technical solutions of the present utility model will be clearly and completely described below with reference to the drawings in this specific embodiment, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, based on the embodiments in this patent, which would be within the purview of one of ordinary skill in the art without the particular effort to make the utility model are intended to be within the scope of the patent protection.

Referring now to fig. 1-5, in connection with the specific embodiments, the following is described: the utility model relates to a smoke baffle valve capable of online replacing soft seals, which comprises a main body frame 1 and a flashboard 2, wherein the main body frame 1 can be manufactured by adopting channel steel welding, a transverse plate is arranged in the main body frame 1, and windows 101 are separated through the transverse plate. The main body frame 1 is provided with a window 101, and a shutter 2 capable of being lifted and lowered is provided in the window 101. The top of the main body frame 1 is provided with a hydraulic cylinder 10, and a piston rod of the hydraulic cylinder 10 is connected to the shutter 2 to drive the shutter 2 to lift and lower, thereby closing or opening the window 101. The bottom edge of the flashboard 2 is provided with a hard seal A3, the bottom edge of the main body frame 1 is provided with a through installation groove A102, a soft seal A4 matched with the hard seal A3 is inserted in the installation groove A102, wherein the hard seal A3 can be made of copper alloy, chromium stainless steel and other materials, and the soft seal A4 can be made of graphite packing with nickel wires. The lower part of the mounting groove A102 is provided with a detachable sealing pressing plate A5, and the sealing pressing plate A5 is used for supporting the lower side of the soft seal A4. The sealing pressing plate A5 is positioned and installed on the lower side of the installation groove A102 through a self-tapping bolt, an adjusting bolt A8 is arranged on the sealing pressing plate A5 in a screwed connection penetrating mode, an inner top plate A7 attached to the lower side of the soft seal A4 is arranged on the top of the adjusting bolt A8 in a supporting mode, and the adjusting bolt A8 is connected with the inner top plate A7 in a rotating mode.

The application principle of the utility model is as follows: referring to the prior art, the flue gas baffle valve is installed, and after the system runs for a period of time, impurities such as accumulated ash and the like can be stored in the baffle valve. When the impurity is required to be cleaned, the sealing pressing plate A5 can be detached from the outside at any time by a worker, so that the soft sealing A4 can be taken out, the accumulated dust can be cleaned by the worker, and whether the soft sealing A5 is replaced or not can be determined according to actual abrasion conditions. In the whole process, the system does not need to be stopped, workers do not need to enter a flue, and the system can be operated outside, so that the operation difficulty is greatly reduced, and the influence of stopping on production is avoided. And moreover, a worker can move the inner top plate A7 by rotating the adjusting bolt A8, and the inner top plate A7 can tightly push or loosen the soft seal A4 after moving, so that the tight fit degree between the soft seal A4 and the hard seal A3 is adjusted.

A further development of the utility model provides that the shutter 2 is of a form with a thicker central portion and gradually thinner ends. Slide grooves 201 are respectively formed in two ends of the flashboard 2, slide rails 9 corresponding to the slide grooves 201 are arranged on the inner side wall of the main body frame 1, and the flashboard 2 is in sliding connection with the window 101 through the slide grooves 201 and the slide rails 9. The sliding groove 201 is matched with the sliding rail 9, so that the sliding resistance of the flashboard 2 can be reduced, the opening and closing actions of the flashboard 2 are more flexible, and the jamming is prevented.

In addition, the utility model further improves, a hard seal B301 is arranged in the chute 201, through mounting grooves B103 are respectively arranged on two side edges of the main body frame 1, a soft seal B401 which penetrates through the sliding rail 9 and is matched with the hard seal B301 is arranged in the mounting groove B103, a detachable sealing pressing plate B501 is arranged on the outer side part of the mounting groove B103, and the sealing pressing plate B501 is used for supporting the outer side of the soft seal B401. The sealing pressing plate B501 and the outer side of the mounting groove B103 are positioned and mounted through self-tapping bolts, an adjusting bolt B801 is arranged on the sealing pressing plate B501 in a screwed connection penetrating mode, and an inner top plate B701 attached to the outer side of the soft seal B401 is supported and arranged on the top of the adjusting bolt B801. Similarly, the soft seal B401 at both sides of the window 101 has a detachable function, and the soft seal B401 and the hard seal B301 have an adjusting function.

The terms "upper", "lower", "outside", "inside", and the like in the description and in the claims of the present utility model and in the above drawings, if any, are used for distinguishing between relative relationships in position and not necessarily for giving qualitative sense. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a soft sealed flue gas baffle valve can be changed on line, includes main body frame (1) and flashboard (2), is provided with window (101) on main body frame (1), is provided with flashboard (2) that can rise, fall in window (101), its characterized in that: be provided with hard seal A (3) on the base of flashboard (2), seted up mounting groove A (102) that link up on the base of main body frame (1), the inside of mounting groove A (102) is inserted and is equipped with soft seal A (4) with hard seal A (3) matched with, mounting groove A (102) lower part is provided with detachable seal clamp plate A (5), seal clamp plate A (5) are used for supporting soft seal A (4) downside.

2. An on-line replaceable soft seal smoke baffle valve according to claim 1, wherein: the sealing pressing plate A (5) is positioned and installed with the lower side of the installation groove A (102) through a self-tapping bolt, the sealing pressing plate A (5) is connected with an adjusting bolt A (8) in a screwed mode, and an inner top plate A (7) attached to the lower side of the soft sealing A (4) is supported and arranged at the top of the adjusting bolt A (8).

3. An on-line replaceable soft seal smoke baffle valve according to claim 1, wherein: sliding grooves (201) are respectively formed in the left end and the right end of the flashboard (2), and sliding rails (9) corresponding to the sliding grooves (201) are arranged on the inner side wall of the main body frame (1).

4. A smoke barrier valve for on-line replacement of soft seals according to claim 3, wherein: be provided with hard seal B (301) in spout (201), mounting groove B (103) that link up have been seted up respectively to main body frame (1) both sides limit, be provided with in mounting groove B (103) run through slide rail (9) and with hard seal B (301) matched with soft seal B (401), the outside portion of mounting groove B (103) is provided with detachable seal clamp plate B (501), seal clamp plate B (501) are used for supporting soft seal B (401) outside.

5. An on-line replaceable soft seal smoke baffle valve according to claim 4, wherein: the sealing pressing plate B (501) is positioned and installed with the outer side of the installation groove B (103) through a self-tapping bolt, an adjusting bolt B (801) is arranged on the sealing pressing plate B (501) in a screwed connection penetrating mode, and an inner top plate B (701) attached to the outer side of the soft sealing B (401) is arranged on the top of the adjusting bolt B (801) in a supporting mode.

6. An on-line replaceable soft seal smoke baffle valve according to claim 1, wherein: the top of the main body frame (1) is provided with a hydraulic cylinder (10), and a piston rod of the hydraulic cylinder (10) is connected with the flashboard (2) so as to drive the flashboard (2) to lift and lower.

7. A smoke barrier valve for on-line replacement of soft seals according to claim 1 or 3, characterized in that: the flashboard (2) is thicker in the middle and thinner at two ends.