JPH09159148A - Heat storage unit replacing apparatus for regenerative burner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to replace a heat storage unit without influence to the temperature gradient in the unit during operating of a regenerative burner by providing a heat storage unit auxiliary chamber at the upper outside of a heat storage chamber, and supplying the unit by the dropped quantity of the unit from a heat storage unit suitable amount drop floor from the auxiliary chamber into the storage chamber. SOLUTION: A heat storage unit suitable amount drop floor 10 has upper and lower porous plates 5 having a diameter larger than a heat storage unit 4, upper and lower nets 6, or one upper or lower porous plate 5 and the other net 6. The plate 5 or net 6 disposed at the lower side is rotated, and the unit 4 is dropped at the position where the sizes of the holes coincide. In this case, the supplement of the unit 4 can be controlled according to the size of the hole, or rotating speed. The dropped amount of the unit 4 from the floor 10 is automatically supplied from a heat storage unit supplementing chamber 1 into a heat storage chamber 2. A gas supply and exhaust unit 8 is provided at a heat storage unit discharge chamber 13 to alternately supply and exhaust the gas.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat storage medium exchange device for a regenerative burner.

[0002]

2. Description of the Related Art In conventional regenerative burners,
Put the alumina balls etc. which are the heat storage body in the heat storage chamber,
By storing exhaust gas from the high temperature side there, heat is stored in the heat storage body,
This is an excellent technique in which high temperature preheated air can be obtained by causing combustion air to flow from the low temperature side and heat exchange between the heat storage body and the combustion air at that time.

[0003]

However, since the heat storage body plays a role of heat storage and also functions as a filter, if the exhaust gas contains a large amount of dust or the like, the heat storage body must be frequently replaced. . That is, the dust in the exhaust gas causes the heat storage body to function as a filter to cause clogging of the heat storage unit, and the temperature of the exhaust gas decreases as the heat is transferred to the heat storage body while flowing between the heat storage bodies. , Volatilized in exhaust gas is deposited in a certain temperature range. Therefore, when heating an object to be heated including dust and volatilized material,
When the differential pressure exceeds the setting while constantly monitoring the differential pressure between the upper and lower sides of the heat storage body, the entire amount of the heat storage body in the heat storage chamber is replaced. Also, when exchanging the heat storage body manually and
While burning the regenerative burners one by one,
The exchange took about 30 minutes. Therefore, when there are many dusts and volatilized substances from the object to be heated, it is necessary to frequently exchange the heat storage body, which is actually unsuitable for such heating.

In order to solve the above-mentioned problems, the present invention provides a regenerator replenishing chamber outside the upper part of the regenerator, and the regenerator and the regenerator replenishing chamber are communicated with each other by one or a plurality of regenerator supplying units. The bottom of the heat storage chamber is composed of an appropriate amount of the heat storage body falling bed, and only the amount of the heat storage body falling from the falling bed is supplied to the heat storage chamber from the heat storage body replenishing chamber via the heat storage body supply unit. The present invention provides a heat storage medium exchange device for a regenerative burner.

Further, according to the present invention, an appropriate amount of regenerator falling bed is provided with a discharge part provided with an opening / closing valve in the center thereof, and the periphery of the discharge part is a porous body or a mesh body having a diameter smaller than that of the heat storage body. The present invention provides a heat storage medium exchange device for a regenerative burner, wherein the heat storage medium exchange device is configured by sloping upward.

Further, in order to solve the above-mentioned problems, the present invention comprises two perforated plates having a diameter larger than that of the regenerator, the perforated plate positioned below the perforated plate. The present invention provides a heat storage medium exchange device for a regenerative burner, characterized in that it is configured to rotate.

Further, in order to solve the above-mentioned problems, the present invention provides that the falling bed of a proper amount of the heat storage body comprises two mesh bodies vertically having a diameter larger than that of the heat storage body, and the mesh body positioned below the mesh bodies. The present invention provides a heat storage medium exchange device for a regenerative burner, characterized in that it is configured to rotate.

Further, in order to solve the above-mentioned problems, the present invention provides a proper quantity falling bed of a heat storage body, in which two perforated plates and a net having a diameter larger than that of the heat storage body are vertically arranged, and the lower side thereof is It is intended to provide a heat storage medium exchange device for a regenerative burner, characterized in that it is configured to rotate a perforated plate or a mesh body located therein.

In order to solve the above problems, the present invention provides a regenerative burner characterized in that a regenerator burner chamber provided with an air supply / exhaust section is formed in a lower portion of a bed for dropping a proper amount of the regenerator. A heat storage medium exchange device is provided.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Reference numeral 1 denotes a heat storage medium replenishing chamber provided outside the upper part of a heat storage chamber 2, and the heat storage medium replenishing chamber 1 and the heat storage chamber 2 are connected by a single or a plurality of heat storage medium supplying portions 3. To do. The bottom of the heat storage chamber 2 is composed of an appropriate amount of the heat storage body falling floor 10, and the amount of the heat storage body from the appropriate amount fall floor 10 to the heat storage medium discharge chamber 13 is passed from the heat storage medium replenishing chamber 1 via the heat storage supply unit 3. The heat storage body 4 is supplied to the heat storage chamber 2. Heat storage body appropriate amount falling floor 1
No. 0, as shown in FIG. 3, is provided with a heat storage body discharge part 11 having an opening / closing valve 12 in the center thereof, and the periphery of the heat storage body discharge part 11 is a porous body having a diameter smaller than that of the heat storage body 4. Alternatively, the regenerator support member 14 made of a mesh is tilted upward. The appropriate amount of the heat storage body falling floor 10 is also shown in FIG.
As shown in FIG. 2, the perforated plates 5 having a diameter larger than that of the heat storage body 4 are vertically arranged, or the mesh bodies 6 are vertically arranged, or one of the upper and lower sides is the perforated plate and the other is the mesh body 6. And rotating the perforated plate 5 or the mesh body 6 located on the lower side,
The heat storage body 4 is configured to drop at a location where the holes have the same size. In this case, it is possible to control the replenishment of the heat storage body 4 depending on the size of the hole, the rotation speed, and the like. The heat storage body 4 is automatically supplied into the heat storage chamber 2 from the heat storage body replenishing chamber 1 by the amount of the heat storage body 4 dropped into the heat storage body discharge chamber 13.
The heat storage / discharge chamber 13 is provided with an air supply / exhaust unit 8 to alternately supply and exhaust air.

The pair of regenerative burners A and B installed on both sides of the furnace body 7 alternately supply high temperature preheated air to the furnace 15 for combustion in the furnace as shown by solid line arrows and broken line arrows in the figure. Contribute. That is, in the regenerative burner A, fresh air is introduced from the air supply / exhaust section 8 as shown by the solid line arrow in the figure, heated by the heat storage body 4, and becomes hot preheated air as shown by the arrow. It jets from the portion 9 into the furnace 15 and contributes to combustion in the furnace. The combustion gas in the furnace 15 is
As shown by the arrow in the figure, after being guided by the regenerative burner B to heat the heat storage body 4, it is discharged from the air supply / exhaust section 8. The jetting portions 9 of the regenerative burners A and B may be provided with a flame holding mechanism, or fuel may be jetted separately into the furnace 15 and mixed combustion with high temperature preheated air in the furnace 15 may be performed. . After the flow indicated by the solid line arrow in the figure is performed for 60 seconds, for example, the flow indicated by the broken line in the figure is performed for 60 seconds, and this is repeated.

In the above-mentioned state, the appropriate amount of the heat storage body falling floor 1
0 is appropriately operated to drop the heat storage body 4 by an appropriate amount, and the heat storage body 4 is automatically supplied from the heat storage body replenishing chamber 1 to the heat storage chamber 2 by the fall amount. If the heat storage body proper amount falling floor 10 is rotated,
A proper amount of the heat storage body 4 can be discharged. The heat storage body 4
With the above-described configuration, the heat can be discharged uniformly from various positions in the heat storage chamber 2, and the temperature gradient in the heat storage chamber 2 is not destroyed. Further, if the opening / closing valve 12 is opened for an appropriate amount or for an appropriate time, the appropriate amount of the heat storage body 4 can be discharged. In this case, since the heat storage body supporting member 14 is inclined downward, the natural storage is smoothly performed.

The heat storage layer 19 consisting of the heat storage body 13 must always have a temperature gradient, for example, if the top is 900 ° C. after cooling, the bottom is 150 ° C. and the top is 950 ° C. after heating. A temperature gradient of 200 ° C. is required at the bottom. Without such temperature distribution, it does not have a function as a heat storage body. In the present invention, for example, if the heat storage body 4 is gradually discharged and introduced every time, the temperature distribution in the heat storage chamber 2 is not destroyed and the heat storage body 13 is not destroyed.
Can be replaced.

[0014]

As described above, the present invention has the following effects. By discharging the heat storage body little by little, it is possible to replace the regenerative burner without affecting the temperature gradient in the heat storage body even during operation. In addition, by dropping the regenerator from various positions, it is possible to prevent the regenerator from sticking to the regenerator due to dust and volatilized substances in the heat accumulator, and to use a regenerative burner when heating an object with a lot of dust and volatilized substances. It will be possible. The control when replenishing the heat storage body can be performed by the size of the hole of the perforated plate on the low temperature side and the rotation speed. Further, it becomes possible to automatically replace the heat storage body, which has been done manually until now. The heat storage body can be replaced without breaking the temperature gradient of the heat storage layer, and the excellent aspect of heat storage combustion can be further exerted.

[Brief description of the drawings]

FIG. 1 is a systematic cross-sectional explanatory view of the whole of the present invention.

FIG. 2 is an explanatory diagram of a heat storage body appropriate amount dropping device.

FIG. 3 is an explanatory diagram of a heat storage body appropriate amount dropping device.

FIG. 4 is an explanatory diagram of a heat storage body appropriate amount dropping device.

FIG. 5 is an overall system cross-sectional explanatory view showing another embodiment of the present invention.

[Explanation of symbols]

 A, B Regenerative burner 1 Heat storage body replenishing chamber 2 Heat storage chamber 3 Heat storage body appropriate amount falling bed 4 Heat storage body 5 Perforated plate 6 Net body 7 Furnace body 8 Air supply / exhaust section 9 Ejection section 10 Heat storage body appropriate amount Falling bed 11 Heat storage body discharge Part 12 Open / close valve 13 Heat storage body discharge chamber 14 Heat storage body support member 15 Inside furnace

Claims (6)

[Claims] 1. A regenerator for regenerator is provided outside the upper part of the regenerator,
The heat storage chamber and the heat storage medium replenishing chamber are connected by a single or a plurality of heat storage medium supply units, the bottom of the heat storage chamber is constituted by a heat storage medium appropriate amount falling floor, the amount of the heat storage medium appropriate amount dropped from the falling floor, the A heat storage medium exchange device for a regenerative burner, characterized in that the heat storage medium is supplied from the heat storage medium replenishing chamber to the heat storage chamber via a heat storage medium supplying section. 2. An appropriate amount of heat storage body falling bed is provided with a discharge part equipped with an on-off valve in the center thereof, and the periphery of the discharge part is directed upward with a porous body or a mesh body having a diameter smaller than that of the heat storage body. The regenerative burner heat storage medium exchange device according to claim 1, wherein the heat storage medium exchange device is configured to be inclined. 3. The appropriate amount of the regenerator falling bed is characterized in that two perforated plates having a diameter larger than that of the regenerator are vertically arranged, and a perforated plate located below the perforated plates is rotated. The regenerative burner heat storage medium exchange device according to claim 1. 4. The appropriate amount of regenerator falling bed is characterized in that two reticulate bodies having a diameter larger than that of the regenerator are vertically arranged, and the reticulate body located on the lower side is rotated. The regenerative burner heat storage medium exchange device according to claim 1. 5. An appropriate amount of falling bed of heat storage body comprises two perforated plates and a net-like body having a diameter larger than that of the heat storage body, and the perforated plate or the net-like body located below one of them is rotated. The regenerative burner heat storage medium exchange device according to claim 1, which is configured. 6. The heat storage medium exchange device for a regenerative burner according to claim 1 or 2, wherein a heat storage medium discharge chamber having an air supply / exhaust portion is formed in a lower portion of the appropriate amount of floor of the heat storage medium.