Transverse push-pull type flue gate valve

Abstract

The invention discloses a transverse push-pull type flue gate valve, which adopts a transverse push-pull structure, avoids the dependence of a traditional hoisting type valve on the upper space, and is suitable for technical improvement occasions with limited space. The H-shaped rolling wheels arranged at the bottom of the inserting plate are in rolling fit with the fixed light rail, traditional sliding friction is converted into efficient rolling friction, and opening and closing operation of the large-size inserting plate becomes extremely labor-saving and rapid; the design of the upper and lower guide rails effectively limits the shaking and toppling of the plugboard during operation and compression, and ensures stable operation and reliable structure; the bolt sealing assembly with the side edge capable of being pressed tightly is matched, so that the excellent smoke sealing performance is achieved; the whole structure is simple, the universality of parts is high, installation and maintenance are convenient, and the manufacturing cost and the maintenance difficulty are remarkably reduced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of plug-in plate valves, and particularly relates to a transverse push-pull type flue plug-in plate valve. BACKGROUND

[0002] As a commonly used fluid pipeline cutting device, the plug-in plate valve is widely used in industrial flue systems to realize the on-off control of flue gas to meet the needs of process switching, maintenance and environmental protection isolation. At present, the common flue plug-in plate valve mainly includes a hoisting type and a manual type. The hoisting type plug-in plate valve usually relies on the lifting mechanism at the top to realize the lifting of the valve plate, and both its installation and operation need to reserve sufficient vertical space above the valve body. In the technical transformation occasions where the pipeline layout is compact and the upper space is limited (such as the existing dense pipeline area, low space or obstacles above the equipment), the hoisting type plug-in plate valve often cannot be installed, and its applicability is greatly limited. The valve plate and the sealing surface of the traditional manual plug-in plate valve, especially the large size valve, are usually in sliding friction, and the friction is huge. Therefore, a long wrench or a large hand wheel needs to be used for opening and closing, which has the obvious disadvantages of laborious operation, long time consumption and high physical requirement for the operator. In addition, the existing valve structure is often complex, the manufacturing and maintenance costs are high, the sealing assembly is easy to wear and inconvenient to replace, and it is difficult to meet the implementation principles of "economy, simplicity, efficiency and reliability" commonly pursued in current industrial technical transformation projects. Therefore, there is an urgent need for a flue plug-in plate valve which can be installed in a narrow space, can realize labor-saving and rapid operation, and has a simple structure and low cost. SUMMARY

[0003] The present application aims to provide a transverse push-pull type flue plug-in plate valve to solve the technical problems of the hoisting type plug-in plate valve which cannot be installed due to limited upper space and the large size manual plug-in plate valve which is laborious to open and close.

[0004] To solve the above technical problems, the specific technical solutions of the present application are as follows: In some embodiments of the present application, a transverse push-pull type flue plug-in plate valve is provided, which comprises: a flue body having a gap for inserting a plug-in plate assembly on one side and the lower side; The plug-in plate assembly comprises a plug-in plate and an H-shaped roller installed at the bottom of the plug-in plate; The track assembly comprises an upper track assembly arranged above the moving path of the plug-in plate and a lower guide rail assembly arranged below; the lower guide rail assembly is fixedly provided with a light rail, and the H-shaped roller is in rolling cooperation with the light rail; The sealing assembly is arranged at the edge of the gap of the flue body to realize sealing after the plug-in plate is inserted.

[0005] In some embodiments of the present application, the upper rail assembly comprises an upper guide rail and an angle steel fixedly connected to the flue body, the upper guide rail is fixed by the angle steel, and a gap is left between the upper edge of the plug plate and the upper guide rail to provide guidance and limit shaking.

[0006] In some embodiments of the present application, the upper rail assembly comprises an upper guide rail and an angle steel fixedly connected to the flue body, the upper guide rail is fixed by the angle steel, and a gap is left between the upper edge of the plug plate and the upper guide rail to provide guidance and limit shaking.

[0007] In some embodiments of the present application, the sealing assembly comprises: an angle steel with an opening, welded to the gap edge of the flue body; a flat steel with an opening, welded to the edge of the plug plate; a sealing material, filled between the angle steel with an opening and the flat steel with an opening; a bolt assembly, passing through corresponding holes on the angle steel with an opening and the flat steel with an opening to connect them and compress the sealing material.

[0008] In some embodiments of the present application, the contact part of the bottom of the plug plate and the light rail is provided with a sealing gasket.

[0009] In some embodiments of the present application, the plug plate assembly further comprises a handrail welded to the outside of the plug plate.

[0010] In some embodiments of the present application, the plug plate assembly further comprises a stiffened plate welded to the connection between the plug plate and the H-shaped roller.

[0011] In some embodiments of the present application, the shape of the plug plate matches the cross-sectional shape of the flue body.

[0012] Compared with the prior art, the present application has the beneficial effects that by adopting a transverse push-pull structure, the dependence of the traditional hoist-type valve on the upper space is avoided, and it is suitable for technical improvement occasions with limited space; by setting the H-shaped roller at the bottom of the plug plate in rolling cooperation with the fixed light rail, the traditional sliding friction is converted into efficient rolling friction, so that the opening and closing operation of the large-size plug plate becomes extremely labor-saving and fast; the design of the upper and lower double guide rails effectively limits the shaking and tilting of the plug plate during operation and under pressure, ensuring stable operation and reliable structure; in cooperation with the bolt sealing assembly that can be compressed on the side edge, excellent flue gas sealing performance is achieved; the overall structure is simple, the components are highly versatile, installation and maintenance are convenient, and the manufacturing cost and maintenance difficulty are significantly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic diagram of the gate in a fully closed state according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the gate in its fully open state according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the installation of the insert assembly provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the installation of the upper guide rail assembly provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the installation of the lower guide rail assembly provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the installation of the lower sealing assembly provided in an embodiment of the present invention.

[0014] In the diagram: 1. Flue body; 2. Insert plate assembly; 3. Upper rail assembly; 4. Lower guide rail assembly; 5. Sealing assembly; 6. Insert plate; 7. Handrail; 8. Upper guide rail; 9. Angle steel; 10. Reinforcing plate; 11. Lower guide rail; 12. Light rail; 13. H-type roller; 14. Flat steel; 15. Sealing material; 16. Bolt assembly. Detailed Implementation

[0015] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0016] To better understand the purpose, structure, and function of this invention, the invention will be described in further detail below with reference to the accompanying drawings.

[0017] See appendix Figures 1-6 As shown, according to some embodiments of this application, (a) the overall structure: This horizontal push-pull flue gate valve mainly consists of a flue body 1, a gate assembly 2, an upper rail assembly 3, a lower guide rail assembly 4, and a sealing assembly 5.

[0018] (II) Detailed structure and connection relationship of each component: 1) Flue body 1 The flue body 1 is the main structure for flue gas circulation, and gaps are provided on one side and the bottom for the insertion of the insert plate assembly 2. The size of the gap is adapted to the size of the insert plate 6 of the insert plate assembly 2, ensuring that the insert plate 6 can be smoothly pushed and pulled laterally, while providing space for the installation of the sealing assembly 5.

[0019] 2) Insertion plate assembly 2 The insert plate assembly 2 is the core component for realizing the opening and closing of the flue, including the insert plate 6, the handrail 7, the H-shaped roller 13 and the stiffening plate 10.

[0020] The insert plate 6 is made of steel plate and its shape matches the cross section of the flue body 1, ensuring that it can completely block the flow of flue gas after insertion.

[0021] Handrail 7 is welded to the outside of insert plate 6, providing a point of leverage for the operator to push or pull insert plate 6 to achieve lateral movement.

[0022] H-shaped rollers 13 are welded to the bottom of the insert plate 6 and are adapted to the rail head of the light rail 12 below it. They can roll smoothly along the light rail 12, converting the sliding friction of the insert plate 6 into rolling friction, which greatly reduces the operating resistance.

[0023] The stiffening plate 10 is welded to the connection between the insert plate 6 and the H-shaped roller 13 as a local reinforcement.

[0024] It is worth noting that the insert plate 6, which extends into the flue body 1, cannot be reinforced with additional ribs, and its thickness must be selected so that it can withstand the negative pressure of the flue.

[0025] 3) Upper guide rail assembly 3 The upper track assembly 3 includes an upper guide rail 8 and an angle steel 9, which are used to guide and limit the upper part of the insert plate 6. The upper guide rail 8 is made of steel profiles and is machined into a shape that fits the upper edge of the insert plate 6. It is fixed to the top edge of the flue body 1 by the angle steel 9, with a small gap reserved between it and the upper edge of the insert plate 6, so as not to affect the lateral movement of the insert plate 6 and to limit its swaying.

[0026] 4) Lower guide rail assembly 4 The lower guide rail assembly 4 includes a lower guide rail 11 and a light rail 12, which are the main support and guide structures for the lateral movement of the insert plate 6. The lower guide rail 11 provides an installation base for the H-shaped roller 13. The light rail 12 is fixed on the lower guide rail 11, and its extension direction is consistent with the pushing and pulling direction of the insert plate 6. The H-shaped roller 13 rolls along the light rail 12 to realize the lateral movement of the insert plate 6.

[0027] 5) Sealing assembly 5 The sealing assembly 5 includes a flat steel bar 14, sealing material 15, and bolt assembly 16, used to achieve flue gas sealing of the flue.

[0028] The perforated angle steel 9 is welded to the edge of the gap in the flue body 1, and the perforated flat steel 14 is welded to the corresponding edge of the insert plate 6. Both have corresponding bolt holes.

[0029] The sealing material 15 is filled between the perforated angle steel 9 and the perforated flat steel 14. After being tightened by the bolt assembly 16, the sealing material 15 is compressed and fills the gap to achieve side sealing. At the same time, a sealing gasket is also provided at the contact part between the bottom of the insert plate 6 and the light rail 12 to prevent smoke leakage from the bottom.

[0030] (III) Work Process 1) Closing the flue: The operator holds the handle 7 of the insert plate assembly 2. This embodiment is for small gate plates that can be pushed manually. For larger gate plates that cannot be pushed or pulled manually, or for which a hand-operated / electric hoist is used for opening and closing, the insert plate 6 is pushed into the flue body 1. At this time, the H-shaped roller 13 at the bottom of the insert plate 6 rolls along the light rail 12 of the lower guide rail assembly 4, causing the insert plate 6 to move laterally into the flue body 1 along the gap; the upper part of the insert plate 6 moves along the upper rail assembly 3 to achieve upper guidance. When the insert plate 6 is fully inserted into the flue body 1, its edge fits against the steel limiting frame inside the flue, limiting shaking, while the bolt assembly 16 presses the sealing material 15 to achieve a reliable seal (e.g., Figure 1 As shown, the gate is in a fully closed state.

[0031] 2) Opening the flue: After loosening the bolt assembly 16 in the sealing assembly 5, the operator pulls the handle 7 in the opposite direction. The H-shaped roller 13 at the bottom of the insert plate 6 rolls in the opposite direction along the light rail 12, and the insert plate 6 is moved out of the flue body 1. After it is moved out, the bolt assembly 16 is used again to compact the sealing material 15 to prevent flue gas leakage. At this time, the flue is restored to flow (e.g., Figure 2 As shown, the gate is in the fully open state.

[0032] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0033] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0034] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0035] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0036] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not 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. A horizontally sliding flue gate valve, characterized in that, include: The flue body (1) has gaps on one side and the bottom side for inserting the plate assembly (2); The insert assembly (2) includes an insert plate (6) and an H-shaped roller (13) mounted on the bottom of the insert plate (6); The track assembly includes an upper track assembly (3) disposed above the moving path of the insert plate (6) and a lower guide rail assembly (4) disposed below it; a light rail (12) is fixedly disposed on the lower guide rail assembly (4), and the H-shaped roller (13) rolls in cooperation with the light rail (12); A sealing component (5) is disposed at the edge of the gap of the flue body (1) for sealing after the insert plate (6) is inserted.

2. The transverse push-pull flue gate valve according to claim 1, characterized in that, The upper track assembly (3) includes an upper guide rail (8) and an angle steel (9) fixedly connected to the flue body (1). The upper guide rail (8) is fixed by the angle steel (9) and has a gap with the upper edge of the insert plate (6) to provide guidance and limit swaying.

3. The transverse push-pull flue gate valve according to claim 1, characterized in that, The lower guide rail assembly (4) includes a lower guide rail (11), and the light rail (12) is fixed on the lower guide rail (11).

4. The transverse push-pull flue gate valve according to claim 1, characterized in that, The sealing assembly (5) includes: An open angle steel (9) is welded to the edge of the gap in the flue body (1); A perforated flat steel bar (14) is welded to the edge of the insert plate (6); Sealing material (15) is filled between the perforated angle steel (9) and the perforated flat steel (14); The bolt assembly (16) passes through the corresponding holes on the perforated angle steel (9) and the perforated flat steel (14) to connect the two and press the sealing material (15).

5. The transverse push-pull flue gate valve according to claim 1, characterized in that, A sealing gasket is provided at the contact point between the bottom of the insert plate (6) and the light rail (12).

6. The transverse push-pull flue gate valve according to claim 1, characterized in that, The insert assembly (2) also includes a handrail (7) welded to the outside of the insert (6).

7. The transverse push-pull flue gate valve according to claim 1, characterized in that, The insert plate assembly (2) also includes a stiffening plate (10) welded to the connection between the insert plate (6) and the H-shaped roller (13).

8. The transverse push-pull flue gate valve according to claim 1, characterized in that, The shape of the insert plate (6) matches the cross-sectional shape of the flue body (1).

Images