CN217875825U

CN217875825U - Efficient and stable air supply mechanism of circulating fluidized bed boiler

Info

Publication number: CN217875825U
Application number: CN202221456721.XU
Authority: CN
Inventors: 陆会忠; 袁世伟
Original assignee: Hangzhou Zhixing Thermal Power Co ltd
Current assignee: Hangzhou Zhixing Thermal Power Co ltd
Priority date: 2022-06-13
Filing date: 2022-06-13
Publication date: 2022-11-22
Anticipated expiration: 2032-06-13

Abstract

The utility model relates to a fan field especially relates to a high-efficient stable air supply mechanism of circulating fluidized bed boiler, including supporting the base, the top parallel arrangement who supports the base has driving motor and fan shell, and driving motor's one end output shaft passes through the belt to be connected with the inside impeller pivot one end of fan shell, and the top of fan shell is provided with out the tuber pipe, and the air-supply line is installed to the top block that goes out the tuber pipe, and one side and the boiler of air-supply line are connected. The utility model discloses a be provided with heat dissipation mechanism, pass through the bolt with the support frame and install in one side of supporting the base, the installation is simple and convenient, with the box card that dispels the heat on driving motor, the heat that driving motor produced is absorbed to the inside coolant liquid of heat dissipation box, through the heat dissipation of heat dissipation box heat conductivity help, the heat dissipation box receives the extrusion rebound can extrude threaded spring and have the shock attenuation guard action to driving motor.

Description

Efficient and stable air supply mechanism of circulating fluidized bed boiler

Technical Field

The utility model relates to a fan field especially relates to a high-efficient stable air supply mechanism of circulating fluidized bed boiler.

Background

The efficient stable air feeder of the circulating fluidized bed boiler is mainly used for providing secondary air, and after passing through the hollow preheater, part of the secondary air is provided to the combustor to provide peripheral air, sandwich air and the like, so that the influence on flame at the burner is realized, and the burner can be cooled. The other part provides the amount of oxygen required for boiler combustion.

An authorized bulletin number is CN206785699U and discloses a controlling means of boiler fan grate, including boiler fan and communicating pipe, the intermediate position department of boiler fan installs the axis of rotation, and the welding has the fan blade in the axis of rotation, fixing bearing has been cup jointed to a side port department of axis of rotation, be provided with fan-shaped ventilative net on the curb plate of boiler fan, the control valve welding has valve controller, be provided with the heat conduction board in the inner wall of communicating pipe. The utility model discloses in, when the boiler fan rotated, the axis of rotation can drive the dust cover and rotate to make fan-shaped ventilative net spill, thereby blast air, when boiler fan stop work, because be connected with reset spring between dust cover and the fan-shaped ventilative net, make the dust cover reset, thereby shelter from fan-shaped ventilative net, make boiler fan inside when not using, avoid the interference of dust, this kind of mode can adjust the regulation and control by oneself of dust screen, and the result of use is better.

However, the existing boiler blower drives the rotating shaft to rotate through the motor, the motor can generate heat after being started for a long time, and the heat is not easy to dissipate near the boiler, so that the high-efficiency stable air supply mechanism of the circulating fluidized bed boiler needs to be designed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The high-efficiency stable air supply mechanism of the circulating fluidized bed boiler is provided for solving the problems that the existing boiler air supply machine in the background art drives the rotating shaft to rotate through the motor, the motor can generate heat when being started for a long time, and the heat is not easy to dissipate near the boiler.

The utility model provides a high-efficient stable air supply mechanism of circulating fluidized bed boiler, including supporting the base, the top of supporting the base is provided with driving motor and fan shell in parallel, and driving motor's one end output shaft is connected with fan shell internal impeller pivot one end through the belt, and the top of fan shell is provided with out the tuber pipe, and the top block of going out the tuber pipe installs the air inlet case, and one side of air inlet case is connected with the boiler, and one side screw thread of supporting the base is installed heat dissipation mechanism; the heat dissipation mechanism comprises a support frame, a bolt is transversely inserted into the bottom end of the support frame, one side of the bolt is connected with one side of the support base through threads, a heat dissipation box is inserted into the top end of the support frame, a threaded cover is installed on the top end of the heat dissipation box through threads, and cooling liquid is filled into the heat dissipation box.

Preferably, the bottom of the air inlet box is symmetrically provided with inserting rods, limiting rods are transversely inserted into the inserting rods, fixed concave blocks are arranged on two sides of the air outlet pipe, limiting plates are arranged on two sides of the air outlet pipe, and the limiting rods are in sliding connection with the limiting plates.

Preferably, the magnetic block is arranged inside the fixed concave block, and one end of the limiting rod is made of metal iron.

Preferably, the inside of going out the tuber pipe is provided with shade mechanism, and shade mechanism includes first spout, and first spout symmetry is seted up in the inside of going out the tuber pipe, and the inside slidable mounting of first spout has the sliding block, and one side that two sliding blocks are close to each other is provided with the folding cloth of ripple, and the inside screw thread of sliding block inserts threaded rod.

Preferably, the inner side of the heat dissipation box is U-shaped, and the heat dissipation box is made of heat-conducting metal materials.

Preferably, the cooling liquid inside the heat dissipation box is fluorinated cooling liquid.

Preferably, the top end of the heat dissipation box is sleeved with a threaded spring, and the top end of the threaded spring is connected with one side of the support frame.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through being provided with heat dissipation mechanism, pass through the bolt with the support frame and install in one side of supporting the base, the installation is simple and convenient, will dispel the heat the box card on driving motor, and the heat that driving motor produced is absorbed to the inside coolant liquid of heat dissipation box, and through the heat dissipation of heat dissipation box heat conductivity help, the heat dissipation box receives extrusion rebound can extrude threaded spring and have the shock attenuation guard action to driving motor.

2. Through being provided with shade mechanism, the rotary threaded rod for the sliding block slides in the inside of first spout, makes the folding cloth of ripple expand to keep off on the play tuber pipe, makes the play tuber pipe can keep off in the inside of play tuber pipe when not using, avoids removing the inside that the dust got into the fan shell, plays the effect of protection.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

fig. 2 is a schematic top view of the mask mechanism of the present invention;

fig. 3 is a schematic view of the front view structure of the heat dissipation mechanism of the present invention;

fig. 4 is an enlarged schematic view of a part of the structure at a in fig. 1 according to the present invention.

In the figure: 110. a support base; 120. a fan housing; 121. an air outlet pipe; 130. an air inlet box; 131. a rod is inserted; 132. a limiting plate; 133. a limiting rod; 134. fixing the concave block; 140. a drive motor; 200. a masking mechanism; 210. a first chute; 211. a slider; 212. corrugated folded cloth; 213. a threaded rod; 300. a heat dissipation mechanism; 310. a threaded cap; 311. a threaded spring; 312. a heat dissipation box; 313. a support frame; 314. and (4) bolts.

Detailed Description

Example one

Referring to fig. 1-3, the present invention provides an embodiment: a high-efficiency stable air supply mechanism of a circulating fluidized bed boiler comprises a supporting base 110, wherein a driving motor 140 and a fan shell 120 are arranged at the top end of the supporting base 110 in parallel, an output shaft at one end of the driving motor 140 is connected with one end of an impeller rotating shaft in the fan shell 120 through a belt, an air outlet pipe 121 is arranged at the top end of the fan shell 120, an air inlet box 130 is clamped and installed at the top end of the air outlet pipe 121, one side of the air inlet box 130 is connected with the boiler, and a heat dissipation mechanism 300 is installed at one side of the supporting base 110 through threads; the heat dissipation mechanism 300 comprises a support frame 313, a bolt 314 is transversely inserted into the bottom end of the support frame 313, one side of the bolt 314 is in threaded connection with one side of the support base 110, a heat dissipation box 312 is inserted into the top end of the support frame 313, a threaded cover 310 is installed on the top end of the heat dissipation box 312 in threaded connection, and cooling liquid is filled in the heat dissipation box 312; the worker mounts the support 313 on one side of the support base 110 through the bolts 314, the mounting is simple and convenient, the heat dissipation box 312 is clamped on the driving motor 140, and the cooling liquid inside the heat dissipation box 312 absorbs the heat generated by the driving motor 140, thereby facilitating the heat dissipation through the heat conductivity of the heat dissipation box 312.

Further, the inside of the heat dissipation box 312 is U-shaped, the heat dissipation box 312 is made of a heat conductive metal, and the inside of the heat dissipation box 312 can be attached to the outside of the driving motor 140.

Furthermore, the cooling liquid inside the heat dissipation box 312 is fluorinated, so that the heat dissipation box has the inert characteristic of insulation and difficult combustion, and the cooling effect is good.

Furthermore, a threaded spring 311 is sleeved at the top end of the heat dissipation box 312, the top end of the threaded spring 311 is connected with one side of the support frame 313, and the threaded spring 311 has a shock absorption effect, so that the heat dissipation box 312 is extruded to move upwards to extrude the threaded spring 311 to have a shock absorption protection effect on the driving motor 140.

Example two

Compared with the first embodiment, referring to fig. 2, the bottom end of the air inlet box 130 is symmetrically provided with the insertion rod 131, the limiting rod 133 is transversely inserted into the insertion rod 131, the two sides of the air outlet pipe 121 are provided with the fixed concave blocks 134, the two sides of the air outlet pipe 121 are provided with the limiting plates 132, and the limiting rods 133 are slidably connected with the limiting plates 132; with air inlet box 130 and play tuber pipe 121 block, inserted bar 131 inserts the inside of play tuber pipe 121, transversely inserts inserted bar 131 with gag lever post 133, and the one end card carries out the block fast on fixed concave block 134, is convenient for install fixed fan fast.

Furthermore, the magnetic block is arranged inside the fixed concave block 134, one end of the limiting rod 133 is made of metal iron, and the limiting rod 133 and the fixed concave block 134 are clamped and adsorbed, so that the stability is improved.

EXAMPLE III

Compared with the first embodiment, referring to fig. 2, the efficient stable air supply mechanism of the circulating fluidized bed boiler provided by the utility model has the advantages that the inside of the air outlet pipe 121 is provided with the shielding mechanism 200, the shielding mechanism 200 comprises the first chute 210, the first chute 210 is symmetrically arranged inside the air outlet pipe 121, the sliding block 211 is slidably arranged inside the first chute 210, the corrugated folding cloth 212 is arranged on one side of the two sliding blocks 211, which are close to each other, and the threaded rod 213 is inserted into the internal thread of the sliding block 211; the user rotates the handle of threaded rod 213 one side simultaneously for sliding block 211 slides in the inside of first spout 210, makes ripple folding cloth 212 expand to keep off on air-out pipe 121, makes air-out pipe 121 can keep off in the inside of air-out pipe 121 when not using, avoids removing the inside that the dust got into fan shell 120, plays the effect of protection.

The working principle of the utility model is as follows: the worker installs the support frame 313 on one side of the support base 110 through the bolt 314, the installation is simple and convenient, the heat dissipation box 312 is clamped on the driving motor 140, the cooling liquid in the heat dissipation box 312 absorbs the heat generated by the driving motor 140, the heat dissipation is assisted through the heat conductivity of the heat dissipation box 312, meanwhile, the thread spring 311 has a damping effect, and the heat dissipation box 312 is extruded to move upwards so that the thread spring 311 can be extruded to have a damping protection effect on the driving motor 140; with air inlet box 130 and play tuber pipe 121 block, inserted bar 131 inserts the inside of play tuber pipe 121, transversely inserts inserted bar 131 with gag lever post 133, and the one end card carries out the block fast on fixed concave block 134, is convenient for install fixed fan fast.

The user rotates the handle of threaded rod 213 one side simultaneously for sliding block 211 slides in the inside of first spout 210, makes ripple folding cloth 212 expand to keep off on air-out pipe 121, makes air-out pipe 121 can keep off in the inside of air-out pipe 121 when not using, avoids removing the inside that the dust got into fan shell 120, plays the effect of protection.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those skilled in the art.

Claims

1. The efficient and stable air supply mechanism of the circulating fluidized bed boiler is characterized by comprising a supporting base (110), wherein a driving motor (140) and a fan shell (120) are arranged at the top end of the supporting base (110) in parallel, an output shaft at one end of the driving motor (140) is connected with one end of an impeller rotating shaft inside the fan shell (120) through a belt, an air outlet pipe (121) is arranged at the top end of the fan shell (120), an air inlet box (130) is installed at the top end of the air outlet pipe (121) in a clamping mode, one side of the air inlet box (130) is connected with the boiler, and a heat dissipation mechanism (300) is installed on one side of the supporting base (110) through threads;

the heat dissipation mechanism (300) comprises a support frame (313), a bolt (314) is transversely inserted into the bottom end of the support frame (313), one side of the bolt (314) is connected with one side of the support base (110), a heat dissipation box (312) is inserted into the top end of the support frame (313), a threaded cover (310) is installed on the top end of the heat dissipation box (312) in a threaded mode, and cooling liquid is filled into the heat dissipation box (312).

2. The efficient and stable air supply mechanism of the circulating fluidized bed boiler according to claim 1, wherein the bottom end of the air inlet box (130) is symmetrically provided with an insertion rod (131), a limiting rod (133) is transversely inserted into the insertion rod (131), two sides of the air outlet pipe (121) are provided with fixed concave blocks (134), two sides of the air outlet pipe (121) are provided with limiting plates (132), and the limiting rod (133) is slidably connected with the limiting plates (132).

3. The efficient and stable air supply mechanism of the circulating fluidized bed boiler as claimed in claim 2, wherein the fixed concave block (134) is internally provided with a magnetic block, and one end of the limiting rod (133) is made of metal iron.

4. The efficient and stable air supply mechanism of the circulating fluidized bed boiler according to claim 1, wherein a shielding mechanism (200) is disposed inside the air outlet pipe (121), the shielding mechanism (200) comprises a first sliding chute (210), the first sliding chute (210) is symmetrically disposed inside the air outlet pipe (121), sliding blocks (211) are slidably mounted inside the first sliding chute (210), corrugated folding cloth (212) is disposed on one side of the two sliding blocks (211) close to each other, and a threaded rod (213) is inserted into an internal thread of each sliding block (211).

5. The efficient and stable air supply mechanism of the circulating fluidized bed boiler as claimed in claim 1, wherein the inside of the heat dissipation box (312) is U-shaped, and the heat dissipation box (312) is made of heat conductive metal.

6. The efficient and stable air supply mechanism of the circulating fluidized bed boiler as claimed in claim 1, wherein the cooling liquid inside the heat dissipation box (312) is fluorinated cooling liquid.

7. The efficient and stable air supply mechanism of the circulating fluidized bed boiler according to claim 1, wherein a top end of the heat dissipation box (312) is sleeved with a threaded spring (311), and a top end of the threaded spring (311) is connected with one side of the support frame (313).