Novel efficient air pre-heater for circulating fluidized bed

Abstract

The utility model relates to the technical field of air pre-heaters, and discloses a novel efficient air pre-heater for a circulating fluidized bed, which comprises an air pre-heater shell, a smoke inlet pipe is fixed on one side of the air pre-heater shell, a smoke outlet pipe is fixed on the other side of the air pre-heater shell, and a smoke outlet pipe is fixed on the other side of the air pre-heater shell. An air outlet pipe is fixed to the top of the air pre-heater shell, an air inlet pipe is fixed to the bottom of the air pre-heater shell, a fixing plate is fixed to the inner wall of the smoke inlet pipe, a smoke pipe penetrates through the fixing plate, the penetrating position is attached to the fixing plate, a stop block is fixed to the outer wall of the smoke pipe, a limiting groove is formed in the outer wall of the smoke pipe, and the stop block is fixed to the stop block. According to the novel efficient air pre-heater for the circulating fluidized bed, in order to conveniently replace the smoke pipe, the smoke pipe can be conveniently mounted and dismounted by arranging the threaded rod, the rotary knob, the guide rod, the threaded sleeve, the hinge rod, the sliding plate, the limiting groove and the limiting rod, the working efficiency is improved, and the labor force of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air preheaters, in particular to a novel high-efficiency air preheater for a circulating fluidized bed. Background Art

[0002] New high-efficiency air preheater for circulating fluidized bed It is a device specially designed for circulating fluidized bed system to preheat air. This new air preheater adopts advanced structure and materials, and through the ingenious heat exchange principle, it can more effectively transfer heat from high-temperature medium to cold air about to enter the furnace. Its high-efficiency performance not only improves energy utilization efficiency and reduces energy waste, but also optimizes the operating conditions of the entire circulating fluidized bed system.

[0003] When the smoke tubes in the existing air preheater are used for a long time, the smoke tubes need to be disassembled and cleaned. When disassembling multiple groups of smoke tubes in the existing air preheater, external tools are needed to remove multiple groups of bolts to remove the smoke tubes. This method not only increases the labor of the staff but also reduces work efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a novel high-efficiency air preheater for a circulating fluidized bed to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of high-efficiency air preheater for a circulating fluidized bed, comprising an air preheater shell, a smoke inlet pipe is fixed to one side of the air preheater shell, a smoke outlet pipe is fixed to the other side of the air preheater shell, an air outlet pipe is fixed to the top of the air preheater shell, an air inlet pipe is fixed to the bottom of the air preheater shell, a fixing plate is fixed to the inner wall of the smoke inlet pipe, a smoke pipe penetrates through the fixing plate, and the penetration is fitted, a stopper is fixed to the outer wall of the smoke pipe, a limiting groove is provided on the outer wall of the smoke pipe, a positioning component for quickly installing the smoke pipe is provided on the fixing plate, a control component is provided on the positioning component, and the positioning component comprises:

[0006] A threaded rod, the threaded rod is rotatably mounted on the inner wall of the smoke inlet pipe, and a knob is fixed at the end of the threaded rod;

[0007] A threaded sleeve, the threaded sleeve being threadedly connected to the outer wall of the threaded rod;

[0008] A slide plate is slidably mounted on the side wall of a fixed plate. Two groups of slide plates are provided, and the two groups of slide plates are symmetrically arranged with the center line of the fixed plate in the vertical direction as the axis of symmetry. By arranging threaded rods, knobs, guide rods, threaded sleeves, hinged rods, slide plates, limit grooves and limit rods, installation and disassembly of the smoke pipe are facilitated, work efficiency is improved, and the labor of the staff is reduced.

[0009] Preferably, a hinged rod is hinged on the threaded sleeve, one end of the hinged rod away from the threaded sleeve is hinged on the slide plate, and a limiting rod is fixed on the top of the slide plate.

[0010] Preferably, a guide rod is fixed to the inner wall of the smoke inlet pipe, and the guide rod passes through the threaded sleeve and is slidably connected at the penetration point.

[0011] Preferably, the control assembly comprises an L-shaped connecting rod, the L-shaped connecting rod is fixed to the outer wall of the slide plate, and a connecting column is fixed to one end of the L-shaped connecting rod away from the slide plate.

[0012] Preferably, a rotating rod is rotatably installed on the inner wall of the air outlet pipe and the air inlet pipe, a disc is fixed at the end point of the rotating rod, and a sealing disc is fixed on the outer wall of the rotating rod. By arranging an L-shaped connecting rod, a rotating rod, a sealing disc, a disc, a movable rod and a connecting column, the sealing disc can shield the air outlet pipe and the air inlet pipe to prevent impurities from falling when the equipment is not in use.

[0013] Preferably, one end of the connecting column away from the L-shaped connecting rod is hinged with a movable rod, and one end of the movable rod away from the connecting column is hinged on the disc.

[0014] Compared with the prior art, the utility model provides a new type of high-efficiency air preheater for a circulating fluidized bed, which has the following beneficial effects:

[0015] 1. The circulating fluidized bed uses a new type of high-efficiency air preheater. In order to facilitate the replacement of the smoke pipe, threaded rods, knobs, guide rods, threaded sleeves, hinged rods, slide plates, limit grooves and limit rods are set to facilitate the installation and disassembly of the smoke pipe, improve work efficiency and reduce the labor of staff.

[0016] 2. The new high-efficiency air preheater for the circulating fluidized bed can shield the air outlet and air inlet of the air preheater by arranging an L-shaped connecting rod, a rotating rod, a sealing disc, a disc, a movable rod and a connecting column when the smoke pipe is disassembled and not in use, so as to prevent impurities from falling when the equipment is not in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the air preheater shell of the utility model;

[0020] Figure 4 This is a partial structural diagram of the control component of the utility model;

[0021] Figure 5 For this utility model Figure 2 Schematic diagram of the A structure.

[0022] In the figure: 1. air preheater shell; 2. smoke inlet pipe; 3. smoke outlet pipe; 4. fixing plate; 5. smoke pipe; 6. air outlet pipe; 7. air inlet pipe; 8. positioning assembly; 81. threaded rod; 82. knob; 83. guide rod; 84. threaded sleeve; 85. hinged rod; 86. slide plate; 87. limit groove; 88. limit rod; 9. stopper; 10. control assembly; 101. L-shaped connecting rod; 102. rotating rod; 103. sealing disk; 104. disc; 105. movable rod; 106. connecting column. DETAILED DESCRIPTION

[0023] like Figure 1-Figure 5 As shown, the utility model provides a technical solution: a new type of high-efficiency air preheater for a circulating fluidized bed, comprising an air preheater shell 1, a smoke inlet pipe 2 is fixed to one side of the air preheater shell 1, a smoke outlet pipe 3 is fixed to the other side of the air preheater shell 1, an air outlet pipe 6 is fixed to the top of the air preheater shell 1, an air inlet pipe 7 is fixed to the bottom of the air preheater shell 1, a fixing plate 4 is fixed to the inner wall of the smoke inlet pipe 2, a smoke pipe 5 penetrates the fixing plate 4, and the penetration part is fitted, a plurality of smoke pipes 5 are provided, and the plurality of smoke pipes 5 are arranged in a linear array, a positioning component 8 for quickly installing the smoke pipe 5 is provided on the fixing plate 4, and a control component 10 is provided on the positioning component 8.

[0024] Specifically, the positioning assembly 8 includes a threaded rod 81, a knob 82, a threaded sleeve 84, a slide plate 86, a guide rod 83, a hinged rod 85, a limit rod 88 and a limit groove 87; the inner wall of the smoke inlet pipe 2 is rotatably installed with a threaded rod 81, the end point of the threaded rod 81 is fixed with a knob 82, the outer wall of the threaded rod 81 is threadedly connected with a threaded sleeve 84, the inner wall of the smoke inlet pipe 2 is fixed with a guide rod 83, and the guide rod 83 passes through the threaded sleeve 84, and is slidably connected at the penetration point. By setting the guide rod 83, the threaded sleeve 84 can be guided. A slide plate 86 is slidably installed on the front side of the fixed plate 4. The slide plate 86 is provided with two groups, and the two groups of slide plates 86 are symmetrically arranged with the center line of the fixed plate 4 in the vertical direction as the symmetry axis. The top of the slide plate 86 is fixed with a limit rod 88, and the outer wall of the smoke pipe 5 is provided with a limit groove 87. The outer wall of the smoke pipe 5 is fixed with a stopper 9. When the smoke pipe 5 is inserted into the fixed plate 4, the stopper 9 is fitted with the side wall of the fixed plate 4. The knob 82 is turned forward to move the threaded sleeve 84 to the left. The outer wall of the threaded sleeve 84 is hinged with a hinged rod 85. The end of the hinged rod 85 away from the threaded sleeve 84 is hinged on the slide plate 86. When the threaded sleeve 84 moves to the left to squeeze the hinge, the hinged rod 85 rotates at the hinge, so that the hinged rod 85 squeezes the slide plate 86, so that the two sets of slide plates 86 move away from each other. A limit rod 88 is fixed on the side of the slide plate 86 close to the smoke pipe 5. When the two sets of slide plates 86 move away from each other When the smoke tube 5 is replaced or disassembled, the knob 82 is reversed to move the threaded sleeve 84 to the right, so that the threaded sleeve 84 pulls the hinged rod 85, and the two sets of slide plates 86 can be pulled closer to each other through the hinged rod 85, so that the limit rod 88 is moved out of the limit groove 87, and the smoke tube 5 is positioned to be disassembled.

[0025] Specifically, the control assembly 10 includes an L-shaped connecting rod 101, a disc 104, a rotating rod 102, a sealing disc 103, a connecting column 106 and a movable rod 105; an L-shaped connecting rod 101 is fixed to the side of the slide plate 86 close to the smoke pipe 5, a rotating rod 102 is rotatably mounted on the inner wall of the air inlet pipe 7 and the air outlet pipe 6, a sealing disc 103 is fixed to the outer wall of the rotating rod 102, a disc 104 is fixed to the end of the rotating rod 102, and a connecting column 106 is fixed to the end of the L-shaped connecting rod 101 away from the slide plate 86. When the slide plates 86 are away from each other, the L-shaped connecting rod 101 can be driven to rotate. The connecting rod 101 moves, so that the L-shaped connecting rod 101 drives the connecting column 106 to move. The top of the connecting column 106 is hinged with a movable rod 105, and the end of the movable rod 105 away from the connecting column 106 is hinged on the disc 104. When the connecting column 106 moves upward, it can drive the movable rod 105 to move upward, so that the movable rod 105 can squeeze the disc 104 to rotate forward, drive the rotating rod 102 to rotate forward, and make the sealing disk 103 rotate, so that the sealing disk 103 does not block the air outlet pipe 6 and the air inlet pipe 7, and perform air inlet and outlet operations.

[0026] Working principle: when it is necessary to disassemble the smoke pipe 5, the reverse rotation knob 82 is used to move the threaded sleeve 84 to the right, so that the threaded sleeve 84 pulls the hinged rod 85, and the two groups of slide plates 86 can be pulled closer to each other through the hinged rod 85, so that the limit rod 88 is moved out of the limit groove 87 and contacts the positioning of the smoke pipe 5, so that the smoke pipe 5 can be disassembled. When it is necessary to install the smoke pipe 5, the smoke pipe 5 is inserted into the fixing plate 4, so that the stopper 9 is fitted with the side wall of the fixing plate 4, and the threaded sleeve 84 is moved to the left by rotating the knob 82 forward. When the threaded sleeve 84 moves to the left to squeeze the hinge, the hinged rod 85 is rotated at the hinge, so that the hinged rod 85 squeezes the slide plate 86, so that the two groups of slide plates 86 are moved away from each other, and the limit rod 88 can be driven to extend into the limit groove 87, so that multiple groups of smoke pipes 5 are fixed together, which is convenient for the staff to operate.

[0027] When the connecting column 106 moves upward, it can drive the movable rod 105 to move upward, so that the movable rod 105 can squeeze the disc 104 to rotate forward, drive the rotating rod 102 to rotate forward, and rotate the sealing disk 103, so that the sealing disk 103 does not block the air outlet pipe 6 and the air inlet pipe 7, and performs air in and out operations. When the smoke pipe 5 is limited and is not used, the slide plates 86 are close to each other, so that the slide plates 86 drive the L-shaped connecting rod 101 to move, and the L-shaped connecting rod 101 drives the connecting column 106 to move, so that the disc 104 is reversed, and the rotating rod 102 drives the sealing disk 103 to reverse to block the air outlet pipe 6 and the air inlet pipe 7, so that impurities cannot enter when not in use.

[0028] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A novel high-efficiency air preheater for a circulating fluidized bed, comprising an air preheater shell (1), characterized in that: A smoke inlet pipe (2) is fixed to one side of the air preheater shell (1), a smoke outlet pipe (3) is fixed to the other side of the air preheater shell (1), an air outlet pipe (6) is fixed to the top of the air preheater shell (1), an air inlet pipe (7) is fixed to the bottom of the air preheater shell (1), a fixing plate (4) is fixed to the inner wall of the smoke inlet pipe (2), a smoke pipe (5) penetrates through the fixing plate (4), and the penetration part is fitted, a stopper (9) is fixed to the outer wall of the smoke pipe (5), a limiting groove (87) is provided on the outer wall of the smoke pipe (5), a positioning component (8) for quickly installing the smoke pipe (5) is provided on the fixing plate (4), a control component (10) is provided on the positioning component (8), and the positioning component (8) comprises: A threaded rod (81), the threaded rod (81) being rotatably mounted on the inner wall of the smoke inlet pipe (2), and a knob (82) being fixed at the end of the threaded rod (81); A threaded sleeve (84), wherein the threaded sleeve (84) is threadedly connected to the outer wall of the threaded rod (81); A slide plate (86) is slidably mounted on the side wall of the fixed plate (4). Two groups of slide plates (86) are provided, and the two groups of slide plates (86) are symmetrically arranged with the center line of the fixed plate (4) in the vertical direction as the symmetry axis.

2. The novel high-efficiency air preheater for a circulating fluidized bed according to claim 1, characterized in that: A hinged rod (85) is hinged on the threaded sleeve (84), one end of the hinged rod (85) away from the threaded sleeve (84) is hinged on a slide plate (86), and a limiting rod (88) is fixed on the top of the slide plate (86).

3. The novel high-efficiency air preheater for a circulating fluidized bed according to claim 1, characterized in that: A guide rod (83) is fixed to the inner wall of the smoke inlet pipe (2), and the guide rod (83) passes through the threaded sleeve (84) and is slidably connected at the penetration point.

4. The novel high-efficiency air preheater for a circulating fluidized bed according to claim 1, characterized in that: The control assembly (10) comprises an L-shaped connecting rod (101), wherein the L-shaped connecting rod (101) is fixed to the outer wall of the slide plate (86), and a connecting column (106) is fixed to one end of the L-shaped connecting rod (101) away from the slide plate (86).

5. The novel high-efficiency air preheater for a circulating fluidized bed according to claim 1, characterized in that: A rotating rod (102) is rotatably mounted on the inner walls of the air outlet pipe (6) and the air inlet pipe (7), a disc (104) is fixed at the end of the rotating rod (102), and a sealing disc (103) is fixed on the outer wall of the rotating rod (102).

6. The novel high-efficiency air preheater for a circulating fluidized bed according to claim 4, characterized in that: One end of the connecting column (106) away from the L-shaped connecting rod (101) is hingedly connected to a movable rod (105), and one end of the movable rod (105) away from the connecting column (106) is hingedly connected to the disc (104).

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