阅读说明：本技术 一种连杆传动滑槽式插板门 (Connecting rod transmission sliding groove type inserting plate door ) 是由 牛艳青 田顺泉 何伟楠 于 2021-06-24 设计创作，主要内容包括：本发明公开了一种连杆传动滑槽式插板门,包括密封门框和插板门,密封门框置于烟道中与烟道直接相连并且密封,密封门框高于插板门二倍高度,密封门框顶端设有固定杆,插板门放置在密封门框内,插板门内设有螺纹杆,螺纹杆上端穿过固定杆与传动件相连,传动件外接电动执行机构转动,所述插板门由≥2块模块组合而成,模块接临处通过卯榫结构连接。本发明通过滑槽式螺纹杆传动以及小模块工艺协同作用实现大型插板门的长期连续运行,在保证插板门高密封性的前提减少插板门的启闭时间,解决电厂较大截面所需大型插板门的生产制造、运输及安装所面临的困难。(The invention discloses a connecting rod transmission sliding groove type inserting plate door which comprises a sealing door frame and an inserting plate door, wherein the sealing door frame is arranged in a flue and is directly connected and sealed with the flue, the sealing door frame is higher than the inserting plate door by two times, a fixed rod is arranged at the top end of the sealing door frame, the inserting plate door is arranged in the sealing door frame, a threaded rod is arranged in the inserting plate door, the upper end of the threaded rod penetrates through the fixed rod to be connected with a transmission piece, the transmission piece is externally connected with an electric actuating mechanism to rotate, the inserting plate door is formed by combining more than or equal to 2 modules, and the adjacent parts of the modules are connected through mortise and tenon structures. The invention realizes the long-term continuous operation of the large-scale inserting plate door through the synergy of the sliding groove type threaded rod transmission and the small module process, reduces the opening and closing time of the inserting plate door on the premise of ensuring the high sealing performance of the inserting plate door, and solves the difficulties in the production, the transportation and the installation of the large-scale inserting plate door required by the larger section of a power plant.)

1. The utility model provides a connecting rod transmission slotted picture peg door which characterized in that: including sealed door frame (1) and picture peg door (2), sealed door frame (1) is arranged in the flue and is directly linked to each other and sealed with the flue, sealed door frame (1) is higher than picture peg door (2) two times height, sealed door frame (1) top is equipped with dead lever (5), and the picture peg door is placed in sealed door frame, is equipped with threaded rod (3) in the picture peg door, and threaded rod (3) upper end is passed dead lever (5) and is linked to each other with driving medium (4), and the external electric actuator of driving medium (4) rotates, picture peg door (2) are formed by more than or equal to 2 module combinations, and the module meets the department and passes through mortise-tenon joint structural connection.

2. The link-driven sliding-slot type slat door according to claim 1, wherein: the sliding groove between the sealing door frame (1) and the inserting plate door (2) is of a mountain-shaped structure.

3. The link-driven sliding-slot type slat door according to claim 1, wherein: the split of picture peg door (2) is 4 standard module A, B, C, D, and wherein the A module is isolation door left side standard module, and the right side is seal structure, and its width is constant value X, and B module width is constant value X equally, and B module both sides are seal structure, and the quantity of B module is N, C module is unanimous with B module structure, and its width is less than constant value X and size is indefinite, and D module is similar with the A module, for isolation door right side standard module, and the left side is seal structure, and its width is constant value X.

4. The link-driven sliding-slot type slat door according to claim 3, wherein: the module is of a rectangular structure.

5. The link-driven sliding-slot type slat door according to claim 4, wherein: and mortise and tenon structures are arranged between adjacent modules of the inserting plate door (2), and an upper row and a lower row of bolt fasteners are arranged along mortise and tenon matching positions.

6. The link-driven sliding-slot type slat door according to claim 5, wherein: and a gap between adjacent modules of the inserting plate door is filled with a high-temperature-resistant sealing material (8).

7. The link-driven sliding-slot type slat door according to claim 1, wherein: and a cross beam (6) is arranged on the back surface of the isolation door.

8. The link-driven sliding-slot type slat door according to claim 1, wherein: the manufacturing and installing process of the inserting plate door comprises the following steps:

the spile door (2) is split into 4 standard modules A, B, C, D to be manufactured respectively, and large-scale production is realized by stipulating the structure and the size of each module; the module A is a standard module on the left side of the isolation door, the right side of the isolation door is a sealing structure, and the width of the sealing structure is a constant value X; the width of the module B is also a constant value X, two sides of the module B are provided with sealing structures, the number of the module B is N, and the total width of the smoke isolation door is adjusted by increasing the installation number of the module B in the installation process; the module C has the same structure as the module B, the width of the module C is smaller than a constant value X, the size of the module C is not fixed, and the width of the module C is adjusted to adapt to different working sizes; the module D is similar to the module A and is a standard module on the right side of the isolation door, the left side of the isolation door is a sealing structure, and the width of the sealing structure is a constant value X; the module is of a rectangular structure or a trapezoid.

Technical Field

The invention belongs to the technical field of smoke and air isolation in a boiler smoke and air pipeline system, and particularly relates to a connecting rod transmission sliding groove type inserting plate door.

Background

In recent years, the development of economy in China brings serious environmental problems to society, and a large amount of flue gas emission is one of important factors causing environmental pollution in China. Most of the smoke emission is caused by coal combustion, in thermal power generation in China, a large amount of sulfur dioxide and other substances are generated in the coal combustion process, acid rain is caused when the smoke is emitted into the air, and the smoke emission causes great harm to the environment. In the present stage, in order to reduce air pollution caused by flue gas emission, a thermal power plant carries out desulfurization and denitration treatment on flue gas. Before carrying out SOx/NOx control, the picture peg door application is behind the draught fan, before booster fan, and the picture peg door is used for isolated flue gas circulation, also can be used to other operations to keep apart in requiring higher flue gas pipeline. The inserting plate door can also control the flue gas flow, and the flue gas flow control inserting and pulling device is mainly used for a bypass flue in a bypass flue gas heating system.

The inserting plate door is an important auxiliary device of the boiler and is installed on the occasions needing to be shut off and isolated on the hot and cold air ducts of the boiler in the thermal power plant. The manual inserting plate door is installed at an ash hopper or on a pipeline to play a role in opening and closing, the flow of materials can be controlled by adjusting the opening degree, and the manual inserting plate door is suitable for the metallurgy and chemical industry and is ideal material partition equipment.

The prior plug board door mainly has the defects of untight closing, overlong closing time and the like, seriously influences the switching and outage overhaul of equipment and causes inconvenience to all large power plants in China.

The large-scale smoke inserting plate door faces certain technical difficulties in the production, manufacture and installation processes and mainly comprises the following aspects: (1) the length and the width of the isolation door can reach more than 5m due to the large section of the flue of the power plant, and the isolation door is difficult to produce, transport and install due to the overlarge size; (2) the working temperature of the smoke isolation door is about 200 ℃, the temperature change is large at the initial stage of work, the size of the smoke isolation door is too large, so that the expansion variable is too large to cause deformation, and the sealing performance is reduced. Accordingly, there is a need for innovations in existing slatted doors.

Disclosure of Invention

In order to solve the problems, the invention discloses a connecting rod transmission sliding groove type inserting plate door, which realizes long-term continuous operation of a large inserting plate door through the cooperation of sliding groove type threaded rod transmission and a small module process, reduces the opening and closing time of the inserting plate door on the premise of ensuring the high sealing performance of the inserting plate door, and solves the difficulties in production, transportation and installation of the large inserting plate door required by a large section of a power plant.

In order to achieve the purpose, the technical scheme of the invention is as follows:

the utility model provides a connecting rod transmission sliding slot formula picture peg door, includes sealed door frame and picture peg door, sealed door frame arrange in the flue with the flue directly link to each other and sealed, sealed door frame is higher than the twice height of picture peg door, sealed door frame top is equipped with the dead lever, the picture peg door is placed in sealed door frame, be equipped with the threaded rod in the picture peg door, the threaded rod upper end is passed the dead lever and is linked to each other with the driving medium, the external electric actuator of driving medium rotates, the picture peg door is formed by more than or equal to 2 module combinations, the module department of meeting is through mortise and tenon structural connection.

As an improvement of the invention, the sliding groove between the sealing door frame and the inserting plate door is of a mountain-shaped structure.

As an improvement of the present invention, the inserting plate door is divided into 4 standard modules A, B, C, D, wherein a module is a left standard module of the isolating door, the right side is a sealing structure, the width of the module is a constant value X, the width of the module B is also a constant value X, two sides of the module B are sealing structures, the number of the module B is N, the module C and the module B have the same structure, the width of the module C is smaller than the constant value X, the size of the module D is variable, the module D is similar to the module a, and is a right standard module of the isolating door, the left side is a sealing structure, and the width of the module C is the constant value X.

As an improvement of the invention, the module is of a rectangular structure, and other modules can be designed according to the requirement of the flue.

As an improvement of the invention, a mortise and tenon structure is arranged between adjacent modules of the inserting plate door, and an upper row and a lower row of bolt fasteners are arranged along mortise and tenon matching positions.

As an improvement of the invention, the gap between the adjacent modules of the inserting plate door is filled with high-temperature resistant sealing material (asbestos rope or asbestos plate).

As an improvement of the invention, the isolating door is provided with a beam on the back surface.

The invention has the beneficial effects that:

according to the connecting rod transmission sliding groove type inserting plate door, long-term continuous operation of a large inserting plate door is realized through the synergistic effect of sliding groove type threaded rod transmission and a small module process; the sealing structure in the sliding groove is optimized, so that the stable operation and the quick opening and closing of the inserting plate door are guaranteed, and the high sealing performance of the inserting plate door is improved.

The split of picture peg door is a plurality of little modules of standard for the manufacturing process to consolidate the isolation door through adding crossbeam and longeron, the sealed of design package assembly assurance between each module, solved the flue cross-section of power plant great lead to the length and width homoenergetic of picture peg door to reach the problem that the manufacturing, transportation and installation process face great difficulty more than 5 m.

The temperature change of the inserting plate door is large at the initial stage of working, the small modules are connected with each other to form an external seal, and meanwhile, the inner part of the small modules is provided with a gap, so that the inserting plate door is not easy to deform in the expansion process, and the good sealing performance is kept.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a sectional view taken along line a-a of fig. 1.

FIG. 3 is a schematic process diagram of a module according to the present invention.

Fig. 4 is a schematic view of the module installation of the present invention.

List of reference numerals:

1. the high-temperature-resistant door comprises a sealing door frame, 2, a flashboard door, 3, a threaded rod, 4, a transmission part, 5, a fixing rod, 6, a vertical beam, 7, an upper stud, 8, high-temperature-resistant sealing material and 9, and a lower stud.

Detailed Description

The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

As shown in the figure, the connecting rod transmission sliding groove type inserting plate door comprises a sealing door frame 1, an inserting plate door 2, a threaded rod 3, a transmission piece 4, a fixing rod 5, a vertical beam 6, an upper stud 7, a high-temperature-resistant sealing material 8 and a lower stud 9. The sealing door frame 1 is arranged in a required flue, the sealing door frame is fixed and sealed, the sealing door frame 1 is higher than the flue and is arranged outside the flue, the sealing door frame 1 is higher than the double height of the inserting plate door 2, the sliding between the sealing door frame 1 and the inserting plate door 2 is designed into a mountain-shaped sealing structure, as shown in figure 2, the flow resistance of flue gas in a gap is improved mainly according to the labyrinth sealing principle by constantly changing the labyrinth gap structure between the isolating door and the flue, so that the purpose of reducing the leakage amount of the flue gas is achieved, and the inserting plate door 2 can move back and forth in the sealing door frame 1 along the mountain-shaped sealing structure. The design has threaded rod 3 (similar to the lead screw that runs through) in the picture peg door 2, and 3 upper ends of threaded rod are supported by 1 top dead lever 5 of sealed door frame to link to each other with driving medium 4 on the dead lever 5, driving medium 4 is driven by the motor, pulls 3 rotatory rises of threaded rod, thereby drives picture peg door 2 and rises along the leakproofness spout, and then realizes opening and close of picture peg door.

Meanwhile, the invention provides a novel manufacturing and installing process of the inserting plate door, which is characterized in that the inserting plate door 2 is divided into a plurality of standard small modules to be manufactured respectively. The detailed description with reference to fig. 2 is as follows:

the smoke inserting plate door is split into 4 standard modules A, B, C, D, and large-scale production is realized by stipulating the structure and the size of each module. The module A is a standard module on the left side of the isolation door, the right side of the isolation door is a sealing structure (the sealing structure is a half of a mortise and tenon structure), and the width of the module A is a constant value X. The width of the module B is also a constant value X, and the total width of the smoke isolation door is adjusted by increasing the installation number of the module B in the installation process. The C module and the B module have the same structure, the width of the C module is smaller than a constant value X, the size is not fixed, and the width of the C module is adjusted to adapt to different working sizes. The module D is similar to the module A, and is a standard module on the right side of the isolation door, and the left side is a sealing structure, and the width of the sealing structure is a constant value X. The module is rectangular structure, and other shape modules can be designed according to the requirement of the flue.

Referring to fig. 4, mortise and tenon structures are arranged between adjacent modules, bolt fasteners are arranged along mortise and tenon matching positions, so that the adjacent modules are matched tightly, and the smoke is prevented from leaking between installation gaps between the adjacent modules. Meanwhile, in order to ensure the strength of each module, a cross beam 6 is arranged at the mortise and tenon structure, 3 cross beams are arranged on the surface of the isolation door after each module passes through a bolt fastener, and the modules are further reinforced through the cross beams.

The bolt fastener mounting process is characterized in that the two modules are fixed by a front bolt and a rear bolt, and a high-temperature-resistant sealing material 8 is filled between the modules. The upper stud 7 extrudes the module B downwards, and the lower stud 9 tightens the module B downwards through tension.

The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by arbitrary combination and modification of the above technical features.