JPH0116890Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] The present invention relates to a fluidized bed boiler.

[Purpose of invention]

The purpose of this invention is to create a fluidized bed of adjacent fluidized beds.
The left and right pipes of a V-shaped connecting pipe are connected, and the left and right pipes of this connecting pipe are each provided with a gas inlet along the center axis of each pipe, and either one of these pipes is connected to the other pipe. By injecting gas into the inlet, the fluidized medium of one fluidized bed is transferred to the other fluidized bed via the other pipe, and the temperature can be controlled by adjusting the bed height, and the stop cell can be started for a short time. The purpose of the present invention is to provide a fluidized bed boiler that can effectively perform the following steps.

〔Example〕

To explain the details of the embodiment with reference to the drawings, A shown in FIGS. 1 and 2 is a fluidized bed boiler, and 1 and 2 are the fluidized bed boiler A divided by a partition wall 3.
On one side of the lower part of the partition wall 3,
The bent portion of the communicating tube 6 having a V-shaped front face is attached, and the left and right channels 6a, 6b constituting the connecting tube 6 are inserted into the cells 1 and 2 separately, and the bent portion of the connecting tube 6 is inserted. The left and right pipes 6a bordering on
Gas (or air) inlets 7 and 8 are provided at the base of the pipe 6b along the axes of the pipes 6a and 6b,
Gas supply pipes 9 and 10 are connected to these, respectively. In the figure, 11 is an air distribution plate, and 12 is a wind box. The communication pipe 6 may be provided at any location on the partition wall 3, but if it is provided close to the wall of the fluidized bed as shown in FIG. 9 and 10 are easy to attach, which is preferable.

Furthermore, as shown in FIG. 3, the bent part of the connecting pipe 6 is not attached to the partition wall 3 as shown in FIG.
This communication pipe 6 is placed in the fluidized bed 4 of one cell 1, and the end opening of one pipe line 6a or 6b of the communication pipe 6 is attached to the partition wall 3, and the fluidized bed 5 of the other cell 2 is placed in the fluidized bed 5 of the other cell 2. They may be communicated. In both of the above embodiments, the partition wall 3 is used and the communication pipe 6 is provided in the fluidized bed 4 or 5.
As shown in the figure, a connecting pipe 6 is attached to the outside of the side wall of the fluidized bed boiler A in an upwardly inclined state as shown in FIG. 4 and 5 may be communicated.

Further, in FIG. 6, two fluidized bed boilers A are arranged opposite each other at an appropriate interval, and each fluidized bed 13 of both fluidized bed boilers A is connected to a connecting pipe 6 having a V-shaped front view. The cells are connected by the partition wall 3, and the same effect as in the case of cells partitioned by the partition wall 3 can be obtained.

[Explanation of action]

Next, the operation of the present invention will be explained using the embodiment shown in FIGS.
When the gas is blown into the cell 1, the transport force of this gas
The fluid medium inside is suctioned and transferred into the cell 2 via the conduits 6a, 6b. Conversely, gas is supplied from the other gas supply pipe 10 to the communication pipe 6 through the inlet 8.
By blowing into the pipe line 6a, the fluidizing medium in the cell 2 is sucked by the gas conveying force, and the flow medium in the cell 2 is blown into the pipe line 6a.
It is transferred into the cell 2 via a and 6b.

[Effect of idea]

Since the present invention is configured as described above, when gas (or air) is blown into one of the blowing ports, one fluidized medium can be transferred to the other fluidized bed by the gas conveyance force. Therefore, when one cell is in operation and the other cell is stopped, the feature is that the stopped cell can be started up in a short time by transferring the high-temperature fluid medium in operation to the stopped cell. be. In addition, when both cells are in operation, the height of both fluidized beds can be changed by transferring high-temperature fluidized medium from one to the other or from the other to one, and the load temperature of each cell can be changed. It has great practical effects, such as being able to adjust the

[Brief explanation of the drawing]

Figure 1 is a front view of an embodiment in which a connecting pipe is provided inside, Figure 2 is a plan view of the same as above, Figure 3 is a front view of another example of the same as above, and Figure 4 is an embodiment in which a connecting pipe is provided outside. 5 is a side view of the same, and FIG. 6 is a front view of two fluidized bed boilers. A... Fluidized bed boiler, 1, 2... Cell, 3...
Partition wall, 4, 5, 13... Fluidized bed, 6... Communication pipe, 6a, 6b... Pipe line, 7, 8... Gas blowing port, 9, 10... Gas supply pipe.

Claims (1)

[Scope of utility model registration request] The fluidized bed sections of adjacent fluidized beds are connected so that they can flow through the left and right pipes of a V-shaped connecting pipe having a right-angled bent part in the middle, and the bent part of the communicating pipe is formed as a boundary. A gas (or air) inlet is provided at the base of the left and right conduits, which are aligned with the center axis of each conduit, and a gas (or air) supply pipe is connected to each of these inlets. A fluidized bed boiler characterized by: