A high-temperature flue gas double valve plate integrated gas-sealed three-way flapper valve

Abstract

The invention discloses a high-temperature flue gas double-valve plate integrated gas-sealed three-way baffle valve, comprising a three-way body, a valve plate is arranged in the three-way body, and a rear shaft is arranged in the middle body on the three-way body, the middle body on the three-way body cooperates with the sealing valve body, a support plate is arranged at the upper left end of the three-way body, the support plate cooperates with a bearing with a seat, a bracket is arranged at the upper right end of the three-way body, the bracket is connected with a main transmission crank, a sealing crank is arranged on the left side of the main transmission crank, the sealing crank is connected with, a connecting rod is arranged between the main transmission crank and the sealing crank, the bracket cooperates with the mask, the sealing connecting rod cooperates with the front shaft, a rod end bearing is arranged on the right side of the front shaft, the rod end bearing cooperates with the driven crank, a sealing ring is arranged on the outer side of the valve plate, so as to realize the switching and diversion of the high-temperature flue gas flow path and the linkage between the main valve and the sealing gas valve; the double valve plate sealing realizes zero leakage of high-temperature flue gas.

Description

Technical Field

[0001] The invention relates to the technical field of three-way valves, and in particular to a high-temperature flue gas double-valve-plate integrated gas-sealed three-way baffle valve. Background Art

[0002] The three-way valve has three ports, one inlet and two outlets (left inlet, right and bottom outlet). Unlike ordinary valves, there is an outlet at the bottom. When the internal valve core is in different positions, the outlets are different. For example, when the valve core is at the bottom, the left and right ports are connected. When the valve core is at the top, the right outlet is blocked, and the left and bottom ports are connected. Because the left and right ports are not on the same horizontal line, when the high-pressure heater is urgently disconnected, the valve is closed and the water supply is bypassed. Generally, the high-temperature flue gas of the three-way valve is easy to leak, and it is more troublesome to maintain. Summary of the invention

[0003] The object of the present invention is to provide a high-temperature flue gas double valve plate integrated gas-sealed three-way baffle valve to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-temperature flue gas double valve plate integrated gas-sealed three-way baffle valve, comprising a tee, a valve plate is arranged in the tee, and a rear shaft is arranged in the middle body on the tee, the middle body on the tee cooperates with the sealing valve body, a support plate is arranged on the upper left end of the tee, the support plate cooperates with the seat bearing, a bracket is arranged on the upper right end of the tee, the bracket is connected to the main transmission crank, a sealing crank is arranged on the left side of the main transmission crank, and the sealing crank is connected to A connecting rod is arranged between the main drive crank and the sealing crank, the bracket cooperates with the mask, the sealing connecting rod cooperates with the front axle, a rod end bearing is arranged on the right side of the front axle, the rod end bearing cooperates with the driven crank, a sealing ring is arranged on the outer side of the valve plate, the sealing ring cooperates with the support block, the outer side of the support block is connected with, the sealing ring is connected with the support column through the support block, a sealing gasket is arranged on the upper end of the support column, a sealing valve core is arranged on the upper end of the sealing gasket, and the sealing valve core is connected with the packing gland.

[0005] Preferably, baffles are provided at the upper and lower barrel openings of the tee.

[0006] Preferably, the support column is movably connected to the mask.

[0007] Preferably, the double-sided baffles of the tee are designed to guide flow, thereby avoiding turbulence and reducing flow resistance and pressure drop.

[0008] Compared with the prior art, the beneficial effects of the present invention are as follows: this high-temperature flue gas double-valve plate integrated air-sealed three-way baffle valve is composed of a three-way body, a valve plate, a sealing ring, a front axle, a rear axle, a seat bearing, a main drive crank, a driven crank, a connecting rod, a mask, a sealing valve body, a sealing valve core, a stuffing, a stuffing gland, etc., and is a highly integrated valve group device; its mechanical interlocking operating mechanism can realize the switching and diversion of the high-temperature flue gas flow path and the linkage between the main valve and the sealing gas valve; the double-valve plate sealed air-sealed cavity structure can achieve zero leakage of high-temperature flue gas; the air valve cavity sealed air flow is purged and self-cleaned; the support plate can adjust the positioning and installation structure, and the positioning is precise to ensure the concentricity of the front and rear axle transmissions, effectively reduce the torque, and reduce the wear of the stuffing; adjust the sealing ring to control the air flow velocity of the air-sealed cavity to achieve the best purging function, and the sealing ring scrapes and cleans the flue gas impurities on the inner wall of the flow channel during the switching process to avoid the coking and adhesion of flue gas impurities between the valve plate and the inner wall of the flow channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of the present invention;

[0010] Figure 2 It is a schematic diagram of the present invention.

[0011] In the figure: 1- tee, 2- valve plate, 3- rear axle, 4- sealing valve body, 5- support plate, 6- bearing with seat, 7- bracket, 8- main drive crank, 9- sealing crank, 10- connecting rod, 11- mask, 12- sealing connecting rod, 13- driven crank, 14- rod end bearing, 15- front axle, 16- sealing ring, 17- support block, 18- guard plate, 19- support column, 20- sealing gasket, 21- sealing valve core, 22- packing gland. DETAILED DESCRIPTION

[0012] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0013] In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0014] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0015] Please refer to Figures 1-2. The present invention provides a technical solution: a high-temperature flue gas double valve plate integrated gas-sealed three-way baffle valve, comprising a three-way body 1, a valve plate 2 is arranged in the three-way body 1, baffles are arranged at the upper and lower barrel openings of the three-way body 1, and the middle body on the three-way body 1 is provided with a rear shaft 3, the middle body on the three-way body 1 is matched with a sealing valve body 4, the double-side baffles of the three-way body 1 are designed to guide flow, avoid turbulence, and reduce flow resistance and pressure drop, a support plate 5 is arranged on the upper left end of the three-way body 1, and the The support plate 5 cooperates with the seat bearing 6, a bracket 7 is provided on the upper right end of the tee 1, the bracket 7 is connected to the main transmission crank 8, a sealed crank 9 is provided on the left side of the main transmission crank 8, the sealed crank 9 is connected to 12, a connecting rod 10 is provided between the main transmission crank 8 and the sealed crank 9, the bracket 7 cooperates with the mask 11, the sealed connecting rod 12 cooperates with the front shaft 15, a rod end bearing 14 is provided on the right side of the front shaft 15, and the rod end bearing 14 is connected to the driven crank 13 The outer side of the 2 is provided with a sealing ring 16, the sealing ring 16 cooperates with the support block 17, the outer side of the support block 17 is connected to 18, the sealing ring 16 is connected to the support column 19 through the support block 17, the upper end of the support column 19 is provided with a sealing gasket 20, the support column 19 is movably connected to the mask 11, the upper end of the sealing gasket 20 is provided with a sealing valve core 21, the sealing valve core 21 is connected to the packing gland 22, and the mechanical interlocking operating mechanism can realize high temperature The switching and diversion of flue gas flow paths are linked with the main valve and the sealing gas valve; the double valve plate sealed gas sealing chamber structure achieves zero leakage of high-temperature flue gas; the valve chamber sealed air flow is purged and self-cleaned; the support plate has an adjustable positioning installation structure with precise positioning to ensure the concentricity of the front and rear axle transmissions, effectively reduce torque, and reduce packing wear; the sealing ring is adjusted to control the air flow velocity in the gas sealing chamber to achieve the best purging function. The sealing ring scrapes and cleans the flue gas impurities on the inner wall of the flow channel during the switching process to avoid coking and adhesion of flue gas impurities between the valve plate and the inner wall of the flow channel.

[0016] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-temperature flue gas double valve plate integrated gas-sealed three-way baffle valve, comprising a tee (1), wherein two valve plates (2) are arranged in the tee (1), wherein one valve plate (2) is located in the middle body of the tee (1), and the other valve plate (2) is located at the upper opening of the tee (1), and the middle body on the tee (1) is provided with a rear axle (3), the middle body on the tee (1) is matched with a sealing valve body (4), a support plate (5) is provided at the upper left end of the tee (1), and the support plate (5) is matched with a seat bearing (6), a bracket (7) is provided at the upper right end of the tee (1), and the bracket (7) is connected to a main transmission crank (8), a sealing crank (9) is provided on the left side of the main transmission crank (8), and the sealing crank (9) is connected to a sealing connecting rod (12), and the sealing connecting rod (12) is connected to the sealing connecting rod (12). A connecting rod (10) is arranged between the main transmission crank (8) and the sealing crank (9), the bracket (7) cooperates with the mask (11), the sealing connecting rod (12) cooperates with the front shaft (15), a rod end bearing (14) is arranged on the right side of the front shaft (15), the rod end bearing (14) cooperates with the driven crank (13), a sealing ring (16) is arranged on the outer side of the valve plate (2), the sealing ring (16) cooperates with the support block (17), the outer side of the support block (17) is connected to the guard plate (18), the sealing ring (16) is connected to the support column (19) through the support block (17), the upper end of the support column (19) is provided with a sealing gasket (20), the upper end of the sealing gasket (20) is provided with a sealing valve core (21), and the sealing valve core (21) is connected to a packing gland (22).

2. According to claim 1, a high-temperature flue gas double valve plate integrated gas-sealed three-way baffle valve, Features: The supporting column (19) is movably connected to the mask (11).

3. According to claim 1, a high-temperature flue gas double valve plate integrated gas-sealed three-way baffle valve, Features: The two valve plates (2) of the three-way body (1) are designed to guide flow.

Images