Air distribution plate mounting structure of high-temperature and high-pressure circulating fluidized bed boiler

Abstract

The utility model discloses a high-temperature and high-pressure circulating fluidized bed boiler air distribution plate installation structure which comprises an air distribution plate, annular grooves are formed in the upper side and the lower side of the air distribution plate, annular rods are fixedly connected to the bottoms in the two annular grooves, a plurality of installation rods are arranged in the two annular grooves and penetrate through the annular grooves, and the annular rods are fixedly connected to the annular grooves. And the lower sides of the multiple mounting rods are fixedly connected with arc-shaped plates, the arc-shaped plates are located on the upper sides of the annular rods and are in contact connection with the annular rods, the upper sides of the multiple mounting rods are fixedly connected with concentric-square-shaped rods, the outer sides of the concentric-square-shaped rods are rotationally sleeved with rotating plates, and the side walls of the rotating plates are sleeved with multiple threaded rods in a threaded mode. According to the utility model, the contact plate and the inner wall of the fluidized bed boiler are tightly contacted and connected together through the matching of the plurality of mounting rods, the concentric-square-shaped rod, the rotating plate, the threaded rod and the contact plate, so that the whole air distribution plate is mounted and fixed, and the practical effect is good.

Description

Technical Field

[0001] This utility model relates to the field of fluidized bed boiler technology, and in particular to an air distribution plate installation structure for a high-temperature and high-pressure circulating fluidized bed boiler. Background Technology

[0002] Fluidized bed boilers are boilers that utilize fluidized bed combustion. Based on the flue gas pressure within the furnace, fluidized bed boilers can be classified into atmospheric pressure fluidized bed boilers, sub-high pressure fluidized bed boilers, and high pressure fluidized bed boilers. The air distributor plate is a device that supports the bed material, evenly distributes air, and ensures normal fluidization in a fluidized bed boiler. In practice, the air distributor plate is mainly installed and fixed using threaded rods. While the overall operation is simple, this method is time-consuming, labor-intensive, and cumbersome because the fluidized bed boiler is cylindrical. It requires first welding a fixing plate to the side wall of the boiler, and then welding the threaded rod to the fixing plate. Furthermore, the device remains fixed, making adjustment of the air distributor plate impossible. Therefore, this paper proposes a new installation structure for the air distributor plate in a high-temperature, high-pressure circulating fluidized bed boiler. Utility Model Content

[0003] The purpose of this utility model is to solve the shortcomings of the existing technology, such as: using threaded rods for installation, since the fluidized bed boiler is cylindrical, it is necessary to first weld the corresponding fixing plate on the side wall of the fluidized bed boiler, and then weld the corresponding threaded rod on the fixing plate. The whole operation is time-consuming, labor-intensive and very troublesome. Therefore, a high-temperature and high-pressure circulating fluidized bed boiler air distribution plate installation structure is proposed.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A high-temperature and high-pressure circulating fluidized bed boiler air distribution plate installation structure includes an air distribution plate. Annular grooves are provided on both the upper and lower sides of the air distribution plate. Annular rods are fixedly connected to the bottom of the bottom of two of the annular grooves. Multiple mounting rods are provided within the two annular grooves, extending through the grooves. An arc-shaped plate is fixedly connected to the lower side of each mounting rod, positioned above the annular rods and in contact with them. A U-shaped rod is fixedly connected to the upper side of each mounting rod. A rotating plate is rotatably sleeved on the outer side of the U-shaped rod. Multiple threaded rods are threaded onto the sidewall of the rotating plate, extending through it. A contact plate is rotatably connected to one end of each threaded rod. Two annular plates are fixedly sleeved within the two annular grooves, facing each other. A locking hole is provided on the sidewall of each mounting rod, with a fixing plate fixedly connected within the locking hole. First springs are fixedly connected to both sides of the fixing plate. A locking rod is fixedly connected to the side of each first spring away from the fixing plate, positioned below the two annular plates and in contact with them.

[0006] Preferably, two said annular plates are fixedly connected with a gear ring near one side of the bottom of the annular groove, and the clamping rod is in meshing connection with the gear ring.

[0007] Preferably, the clamping rod is fixedly connected with a connecting line in the clamping hole, the connecting line penetrates through the fixed plate and the mounting rod, a moving ring is arranged on the outer side of the mounting rod, the connecting line is fixedly connected with the moving ring, and the moving ring is arranged on the outer side of the annular groove.

[0008] Preferably, a gear is fixedly arranged on the outer side of the rotating plate, a limiting groove is arranged on the side of the mounting rod away from the annular groove, a limiting rod is slidingly connected in the limiting groove, the limiting rod penetrates through the limiting groove, the limiting rod is in meshing connection with the gear, and the limiting rod is connected with the bottom of the limiting groove through the second spring.

[0009] Preferably, a rubber sleeve is fixedly arranged on the outer side of the clamping rod.

[0010] Compared with the prior art, the beneficial effects of the utility model are that: through cooperation between the plurality of mounting rods, the back-shaped rod, the rotating plate, the threaded rod and the contact plate, the contact plate and the inner wall of the fluidized bed boiler are tightly connected together, and then the installation and fixing operation of the air distribution plate as a whole is completed, cooperation between the plurality of devices can greatly improve the stability of the device as a whole, and adjustment operation can be carried out according to actual working conditions, more different working needs are met, the device as a whole is in an assembled structure, installation and disassembly are fast, and the practical effect is good. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 A structural schematic view of a high-temperature high-pressure circulating fluidized bed boiler air distribution plate installation structure is provided in the utility model;

[0012] Figure 2 A structural schematic view of a high-temperature high-pressure circulating fluidized bed boiler air distribution plate installation structure is provided in the utility model; Figure 1 A structural schematic view of a high-temperature high-pressure circulating fluidized bed boiler air distribution plate installation structure is provided in the utility model;

[0013] Figure 3 A structural schematic view of a high-temperature high-pressure circulating fluidized bed boiler air distribution plate installation structure is provided in the utility model; Figure 1 A structural schematic view of a high-temperature high-pressure circulating fluidized bed boiler air distribution plate installation structure is provided in the utility model;

[0014] Figure 4 A top view connection schematic view of an annular plate in a high-temperature high-pressure circulating fluidized bed boiler air distribution plate installation structure is provided in the utility model.

[0015] In the figure: 1 cloth wind board, 2 annular groove, 3 annular rod, 4 arc plate, 5 mounting rod, 6 rotating plate, 7 threaded rod, 8 contact plate, 9 annular plate, 10 gear ring, 11 clamping hole, 12 clamping rod, 13 fixed plate, 14 first spring, 15 connecting wire, 16 moving ring, 17 back-shaped rod, 18 gear, 19 limiting groove, 20 limiting rod, 21 second spring. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0017] Reference Figures 1-4The utility model provides a kind of secondary high-temperature secondary high-pressure circulating fluidized bed boiler air distribution plate 1 installation structure, including air distribution plate 1, the upper and lower sides of air distribution plate 1 are equipped with annular groove 2, two annular grooves 2 inner bottom fixedly connected with annular rod 3, two annular grooves 2 are equipped with multiple installation rods 5, multiple installation rods 5 are set through annular groove 2, the lower side of multiple installation rods 5 is fixedly connected with arc plate 4, arc plate 4 is located the upper side of annular rod 3 and annular rod 3 contact connection setting, the upper side of multiple installation rods 5 is fixedly connected with backshaped rod 17, the outer side of backshaped rod 17 rotatably covers set with rotating plate 6, the sidewall of rotating plate 6 is threadedly covered with multiple threaded rods 7, multiple threaded rods 7 are set through rotating plate 6, one end of multiple threaded rods 7 is rotatably connected with contact plate 8, two annular grooves 2 are fixedly covered with two annular plates 9, two annular plates 9 are oppositely arranged, the sidewall of multiple installation rods 5 is equipped with clamping hole 11, clamping hole 11 is fixedly connected with fixed plate 13, both sides of fixed plate 13 are fixedly connected with first spring 14, the side of first spring 14 away from fixed plate 13 is fixedly connected with clamping rod 12, clamping rod 12 is located the lower side of two annular plates 9 and two annular plates 9 contact connection setting, the side of two annular plates 9 close to the bottom of annular groove 2 is fixedly connected with gear ring 10, clamping rod 12 and gear ring 10 are engagedly connected, the position of installation rod 5 is limited and clamping fixed operation is completed by cooperating between clamping rod 12 and two gear rings 10, clamping rod 12 is fixedly connected with connecting wire 15 in clamping hole 11, connecting wire 15 is set through fixed plate 13 and installation rod 5, the outer side of installation rod 5 is covered with moving ring 16, moving ring 16 is located the outside of annular groove 2, connecting wire 15 and moving ring 16 are fixedly connected, and the movement control operation of clamping rod 12 is completed, the outer side of rotating plate 6 is fixedly covered with gear 18, the side of installation rod 5 away from annular groove 2 is equipped with limiting groove 19, limiting groove 19 is slidably connected with limiting rod 20, limiting rod 20 is set through limiting groove 19, limiting rod 20 and gear 18 are engagedly connected, limiting rod 20 is connected by second spring 21 and limiting groove 19 bottom, the angle between rotating plate 6 and installation rod 5 is adjusted and fixed operation is completed by cooperating between gear 18 and limiting rod 20.

[0018] The utility model discloses a cloth air baffle 1 is installed to the operation of the following specific operation: selecting the integral of the proper number of mounting pole 5, moving upwards or downwards moving ring 16, and moving ring 16 is driven the card pole 12 movement through the connecting line 15, inserts the mounting pole 5 into annular groove 2, and makes arc plate 4 and mounting pole 5 closely contact and connect together, adjusts the position of mounting pole 5 in annular groove 2, until the position of mounting pole 5 satisfies the work need, loosens moving ring 16, and under the action of first spring 14, card pole 12 respectively and annular plate 9 and gear ring 10 closely contact and connect together, moves the limit rod 20 in the direction of approaching cloth air baffle 1, and limit rod 20 compresses second spring 21, until limit rod 20 and gear 18 are disconnected, with back-shaped rod 17 as center, rotates rotating plate 6, until the position of rotating plate 6 satisfies the work need, loosens limit rod 20, and under the action of second spring 21, limit rod 20 is engaged together again between gear 18, rotates threaded rod 7, and threaded rod 7 drives contact plate 8 to move, until contact plate 8 and corresponding mounting position closely contact and connect together, and then complete the installation operation of cloth air baffle 1.

[0019] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and utility model concept of the utility model, carries out equivalent replacement or change, should be covered in the protection scope of the utility model.

Claims

1. A high-temperature high-pressure circulating fluidized bed boiler air distribution plate mounting structure comprising an air distribution plate (1), characterized by, The upper and lower sides of the cloth air distribution plate (1) are provided with annular grooves (2), the inner bottom of the two annular grooves (2) is fixedly connected with annular rods (3), a plurality of mounting rods (5) are arranged in the two annular grooves (2), the plurality of mounting rods (5) penetrate through the annular grooves (2), the lower side of the plurality of mounting rods (5) is fixedly connected with arc-shaped plates (4), the arc-shaped plates (4) are arranged on the upper side of the annular rods (3) and are in contact with the annular rods (3), the upper side of the plurality of mounting rods (5) is fixedly connected with back-shaped rods (17), the outer side of the back-shaped rods (17) is rotatably sleeved with rotating plates (6), the side wall of the rotating plates (6) is threadedly sleeved with a plurality of threaded rods (7), the plurality of threaded rods (7) penetrate through the rotating plates (6), one end of the plurality of threaded rods (7) is rotatably connected with contact plates (8), two annular plates (9) are fixedly sleeved in the two annular grooves (2), the two annular plates (9) are oppositely arranged, the side wall of the plurality of mounting rods (5) is provided with clamping holes (11), the clamping holes (11) are fixedly connected with fixed plates (13), the two sides of the fixed plates (13) are fixedly connected with first springs (14), the side, away from the fixed plates (13), of the first springs (14) is fixedly connected with clamping rods (12), and the clamping rods (12) are arranged on the lower side of the two annular plates (9) and are in contact with the two annular plates (9).

2. The high-temperature and high-pressure circulating fluidized bed boiler air distribution plate mounting structure according to claim 1, characterized by, The side, close to the bottom of the annular groove (2), of the two annular plates (9) is fixedly connected with tooth rings (10), and the clamping rods (12) and the tooth rings (10) are in meshing connection.

3. The high-temperature and high-pressure circulating fluidized bed boiler air distribution plate mounting structure according to claim 1, characterized by, The clamping rods (12) are fixedly connected with connecting wires (15) in the clamping holes (11), the connecting wires (15) penetrate through the fixed plates (13) and the mounting rods (5), the outer side of the mounting rods (5) is sleeved with moving rings (16), the moving rings (16) are arranged on the outer side of the annular grooves (2), and the connecting wires (15) and the moving rings (16) are fixedly connected.

4. The high-temperature and high-pressure circulating fluidized bed boiler air distribution plate mounting structure according to claim 1, characterized by The outer side of the rotating plates (6) is fixedly sleeved with gear wheels (18), the side, away from the annular grooves (2), of the mounting rods (5) is provided with limiting grooves (19), limiting rods (20) are slidably connected in the limiting grooves (19), the limiting rods (20) penetrate through the limiting grooves (19), the limiting rods (20) and the gear wheels (18) are in meshing connection, and the limiting rods (20) are connected with the bottoms of the limiting grooves (19) through second springs (21).

5. The high-temperature and high-pressure circulating fluidized bed boiler air distribution plate mounting structure according to claim 1, characterized by, The outer side of the clamping rods (12) is fixedly sleeved with rubber sleeves.

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