CN215410276U

CN215410276U - Leakage-proof flue gas desulfurization double-baffle valve for power station

Info

Publication number: CN215410276U
Application number: CN202121869504.9U
Authority: CN
Inventors: 官典; 黎伟
Original assignee: Jiangsu Juzheng Machinery Co ltd
Current assignee: Jiangsu Juzheng Machinery Co ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2022-01-04
Anticipated expiration: 2031-08-11

Abstract

The utility model discloses an anti-leakage flue gas desulfurization double-baffle valve for a power station, which comprises a valve body, wherein the valve body comprises a control section and a gas passing section, a cavity is arranged in the control section, a turntable is arranged above the cavity, the bottom end of the turntable is fixedly connected with a first connecting rod, the bottom end of the first connecting rod penetrates through the top wall of the cavity and is fixedly connected with a threaded rod, a moving block is in threaded connection with the threaded rod, limiting rods are respectively connected to the through holes on the left side and the right side of the moving block in a sliding manner, and second connecting rods are respectively fixedly connected to the left side and the right side of the bottom end of the moving block. According to the utility model, the rotation of the threaded rod is controlled through the rotation of the rotary table, the moving block on the threaded rod moves linearly along with the threaded rod, the moving block drives the lifting plate to move through the second connecting rod, and the position of the baffle plate in the air passing section is further controlled, so that the opening and closing of the valve are realized, the opening and closing of the valve are simple and rapid, and meanwhile, the possibility of leakage is reduced by adopting a double-baffle structure.

Description

Leakage-proof flue gas desulfurization double-baffle valve for power station

Technical Field

The utility model relates to the technical field of desulfurization devices, in particular to an anti-leakage flue gas desulfurization double-baffle valve for a power station.

Background

The valves are used for opening and closing pipelines, controlling flow direction, adjusting and controlling parameters of conveying media, and can be divided into shut-off valves, check valves, adjusting valves and the like according to functions of the valves, wherein the valves are control parts in a fluid conveying system and have functions of stopping, adjusting, guiding, preventing backflow, stabilizing pressure, shunting or overflowing and relieving pressure, the valves used for the fluid control system range from the simplest stop valves to various valves used in an extremely complex automatic control system, the variety and the specification of the valves are quite various, and the valves are important parts in a desulfurization device in flue gas desulfurization.

Chinese patent document CN202531862U discloses a more labor-saving and effectively wear-reducing desulfurization butterfly valve, which comprises a valve body, wherein the valve body is fixedly connected with a packing cover through a fastening device, and the packing is distributed between a valve rod and the valve body. The design of the rotating shaft of the utility model leads the rotating shafts at two sides to be driven to rotate simultaneously when the valve rod rotates, and saves labor when the valve is opened or closed. The part of the rotating shaft, which is contacted with the valve body, is provided with a sealing gasket, one sealing gasket can protect the filler from leakage, and the other sealing gasket can play a role in reducing abrasion. However, the valve has the disadvantages of inconvenient operation, easy leakage and low corrosion resistance.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides an anti-leakage flue gas desulfurization double-baffle valve for a power station.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides an anti-leakage flue gas desulfurization double-baffle valve for power station, includes the valve body, the valve body includes control section and gas passing section, be provided with the cavity in the control section, the cavity top is provided with the carousel, carousel bottom end fixedly connected with head rod, cavity roof and fixedly connected with threaded rod are run through to the head rod bottom, threaded connection has the movable block on the threaded rod, the equal sliding connection of movable block both sides through-hole department has the gag lever post about it, the equal fixedly connected with second connecting rod in the movable block bottom left and right sides, second connecting rod bottom end fixedly connected with lifter plate, be sliding connection between lifter plate and the control section inner wall, the equal fixedly connected with baffle in lifter plate bottom left and right sides, the baffle includes base member layer and anti-corrosion layer.

As a further description of the above technical solution:

the air passing section comprises an air inlet and an air outlet.

As a further description of the above technical solution:

the base layer is made of carbon steel.

As a further description of the above technical solution:

the material of the anti-corrosion layer is nickel-based alloy.

As a further description of the above technical solution:

and two ends of the limiting rod are respectively and fixedly connected to the inner walls of the top end and the bottom end of the cavity.

As a further description of the above technical solution:

the moving block is connected with the inner wall of the cavity in a sliding manner.

As a further description of the above technical solution:

the valve body is made of carbon steel.

As a further description of the above technical solution:

the cross-sectional shape of the gas passing section is rectangular, and the shape of the baffle is the same as that of the gas passing section.

The utility model has the following beneficial effects:

1. according to the utility model, the rotation of the threaded rod is controlled through the rotation of the rotary table, the moving block on the threaded rod moves linearly along with the threaded rod, the moving block drives the lifting plate to move through the second connecting rod, and the position of the baffle plate in the air passing section is further controlled, so that the opening and closing of the valve are realized, the opening and closing of the valve are simple and rapid, and meanwhile, the possibility of leakage is reduced by adopting a double-baffle structure.

2. In the utility model, the valve body and the substrate layer in the baffle are made of carbon steel materials, so that the valve has good corrosion resistance, and the corrosion resistant layer in the baffle is made of nickel-based alloy materials, so that the corrosion resistance of the baffle is further improved, the service life of the valve is prolonged, and the valve is worth of being widely popularized.

Drawings

FIG. 1 is a schematic view of the internal structure of a leakage-proof flue gas desulfurization double-baffle valve for a power station, which is provided by the utility model;

FIG. 2 is a perspective view of a leakage-proof flue gas desulfurization double flapper valve for a power station according to the present invention;

FIG. 3 is a schematic structural view of a leakage-proof flue gas desulfurization double-baffle valve for a power station according to the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 1;

FIG. 5 is a sectional view of a gas passing section of a leakage-proof flue gas desulfurization double-baffle valve for a power station according to the present invention;

FIG. 6 is a sectional view of a middle baffle plate of the leakage-proof flue gas desulfurization double-baffle valve for a power station.

Illustration of the drawings:

1. a control section; 2. a gas passing section; 3. an air inlet; 4. an air outlet; 5. a cavity; 6. a turntable; 7. a first connecting rod; 8. a threaded rod; 9. a moving block; 10. a limiting rod; 11. a second connecting rod; 12. a lifting plate; 13. a baffle plate; 14. a substrate layer; 15. an anti-corrosion layer; 16. the valve body.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-6, one embodiment of the present invention is provided: an anti-leakage flue gas desulfurization double-baffle valve for a power station comprises a valve body 16, wherein the valve body 16 comprises a control section 1 and a gas passing section 2, the control section 1 is used for opening and closing a valve, a cavity 5 is arranged in the control section 1, a rotary table 6 is arranged above the cavity 5, a first connecting rod 7 is fixedly connected to the bottom end of the rotary table 6, the bottom end of the first connecting rod 7 penetrates through the top wall of the cavity 5 and is fixedly connected with a threaded rod 8, a moving block 9 is connected to the threaded rod 8 in a threaded manner, limiting rods 10 are respectively and slidably connected to the through holes on the left side and the right side of the moving block 9, second connecting rods 11 are respectively and fixedly connected to the left side and the right side of the bottom end of the moving block 9, a lifting plate 12 is fixedly connected to the bottom end of the second connecting rods 11, a baffle 13 is respectively and slidably connected between the lifting plate 12 and the inner wall of the control section 1, the baffle 13 comprises a base body layer 14 and an anti-corrosion layer 15, and the rotary table 6 is rotated, the first connecting rod 7 fixedly connected with the rotary table 6 drives the threaded rod 8 to rotate, the moving block 9 on the threaded rod 8 moves linearly under the action of the limiting rod 10, the moving block 9 drives the lifting plate 12 to lift through the second connecting rod 11, and then the baffle 13 is driven to lift, so that the valve is controlled to be opened and closed.

The gas passing section 2 comprises a gas inlet 3 and a gas outlet 4, the base layer 14 is made of carbon steel, the anti-corrosion layer 15 is made of nickel-based alloy, the nickel-based alloy used by the anti-corrosion layer 15 has good anti-corrosion performance, the baffle 13 can be prevented from leaking gas due to corrosion, two ends of the limiting rod 10 are respectively and fixedly connected to the top end and the bottom end inner wall of the cavity 5, the moving block 9 and the inner wall of the cavity 5 are in sliding connection, the valve body 16 is made of carbon steel, the cross section of the gas passing section 2 is rectangular, the baffle 13 is identical to the cross section of the gas passing section 2, the baffles 13 are two in number, and the leakage risk is further reduced.

The working principle is as follows: when the valve needs to be controlled, the rotary table 6 is rotated manually, the first connecting rod 7 fixedly connected with the rotary table 6 drives the threaded rod 8 to rotate, the moving block 9 on the threaded rod 8 moves linearly under the action of the limiting rod 10, the moving block 9 drives the lifting plate 12 to lift through the second connecting rod 11, and then the baffle 13 is driven to lift, so that the valve is controlled to be opened and closed, meanwhile, carbon steel is used as raw materials for the valve body 16 and the base layer 14 in the baffle 13, the carbon steel has good corrosion resistance and absorption performance, the possibility of valve corrosion is reduced, meanwhile, the baffle 13 is provided with the corrosion-resistant layer 15, the corrosion-resistant layer 15 is made of nickel-based alloy, and the corrosion resistance of the baffle 13 is further improved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a prevent flue gas desulfurization double-baffle valve for power station that reveals, includes valve body (16), its characterized in that: the valve body (16) comprises a control section (1) and a gas passing section (2), a cavity (5) is arranged in the control section (1), a rotary table (6) is arranged above the cavity (5), a first connecting rod (7) is fixedly connected to the bottom end of the rotary table (6), the bottom end of the first connecting rod (7) penetrates through the top wall of the cavity (5) and is fixedly connected with a threaded rod (8), a moving block (9) is in threaded connection with the threaded rod (8), limiting rods (10) are respectively and slidably connected to through holes in the left side and the right side of the moving block (9), second connecting rods (11) are respectively and fixedly connected to the left side and the right side of the bottom end of the moving block (9), a lifting plate (12) is fixedly connected to the bottom end of the second connecting rods (11), the lifting plate (12) is in sliding connection with the inner wall of the control section (1), and baffle plates (13) are respectively and fixedly connected to the left side and the right side of the bottom end of the lifting plate (12), the baffle plate (13) comprises a base layer (14) and an anti-corrosion layer (15).

2. The leakage-proof flue gas desulfurization double-baffle valve for the power station as claimed in claim 1, wherein: the gas passing section (2) comprises a gas inlet (3) and a gas outlet (4).

3. The leakage-proof flue gas desulfurization double-baffle valve for the power station as claimed in claim 1, wherein: the material of the substrate layer (14) is carbon steel.

4. The leakage-proof flue gas desulfurization double-baffle valve for the power station as claimed in claim 1 or 3, wherein: the material of the anti-corrosion layer (15) is nickel-based alloy.

5. The leakage-proof flue gas desulfurization double-baffle valve for the power station as claimed in claim 1, wherein: and two ends of the limiting rod (10) are respectively and fixedly connected to the inner walls of the top end and the bottom end of the cavity (5).

6. The leakage-proof flue gas desulfurization double-baffle valve for the power station as claimed in claim 1, wherein: the moving block (9) is in sliding connection with the inner wall of the cavity (5).

7. The leakage-proof flue gas desulfurization double-baffle valve for the power station as claimed in claim 1, wherein: the valve body (16) is made of carbon steel.

8. The leakage-proof flue gas desulfurization double-baffle valve for the power station as claimed in claim 1, wherein: the cross-sectional shape of the gas passing section (2) is rectangular, and the shape of the baffle (13) is the same as that of the cross-sectional shape of the gas passing section (2).