JP4628891B2 - Heat storage material support base and heat storage device including the heat storage material support base - Google Patents

Description

  The present invention relates to a heat storage material support base on which a heat storage material is placed, and a heat storage device including the heat storage material support base.

  Conventionally, as a heat storage device, a large number of heat storage materials such as alumina balls are placed on a support base for heat storage materials, and high temperature exhaust gas is passed from the upper side to absorb heat to the heat storage material, and low temperature air is supplied from the lower side. It is known that the heat is used for preheating combustion air, for example, by supplying and radiating heat from the heat storage material (see, for example, Patent Document 1).

  Then, as shown in FIG. 7, a plurality of support plates 21 are juxtaposed at predetermined intervals (intervals at which the heat storage material does not fall) as a heat storage material support base, and rods are inserted into the through holes 22 formed in each support plate 21. A material in which the material 23 is inserted and the support plate 21 and the bar 23 are integrated by welding is known.

  Moreover, the thing of a honeycomb structure is known as another support stand for heat storage materials (for example, refer patent document 2, 3).

Japanese Patent No. 3182045 JP-A-7-127983 Utility Model Registration No. 2598619

  However, the former support for a heat storage material has the following problems.

  (1) Although the support plate and the bar are integrated by welding, the position of the support plate may be shifted during the welding operation, and the interval between the support plates cannot often be maintained at an appropriate value. That is, the yield is bad.

  (2) It is necessary to position each support plate with a jig or the like so that the interval between the support plates does not shift. In addition, it is necessary to weld between all the support plates and the rods, which increases the number of welding points and takes time and effort to remove the slot. That is, workability is bad.

  (3) Since the welding location and the position where the heat storage material is placed are close, the welding location is easily affected by heat. As a result, there is a high possibility that the welded portion is damaged by the heat shrinkage. And if a welding location is damaged, the space | interval of a support plate will shift | deviate and there exists a possibility that a thermal storage material may fall during use. That is, the durability is poor.

  (4) Processing cost is increased due to poor yield and poor workability.

  Further, the latter support for the heat storage material is difficult to manufacture and costs high.

  Accordingly, an object of the present invention is to provide a heat storage material support base and a heat storage device that have a simple and inexpensive structure, are excellent in workability, and are less likely to be damaged during use.

  As a means for solving the above-mentioned problems, the present invention has a configuration in which a support for a heat storage material is provided with a first support plate and a second support plate placed so as to cross the first support plate. And heat storage for mounting a gap formed between adjacent second support plates by forming a plurality of guide grooves at a predetermined interval in at least the first support plate and guiding the second support plate with the guide grooves. It is a value that can prevent the material from falling.

  With this configuration, the interval between the second support plates that support the heat storage material is determined by the interval between the guide grooves formed in the first support plate. Therefore, the distance between the second support plates can be accurately set to a desired value. Moreover, it is not always necessary to weld and integrate the first support plate and the second support plate. Therefore, workability is improved and the yield is improved. Further, since the guide groove can be easily formed by pressing or the like, the manufacturing cost can be suppressed.

  It is preferable that the first support plate and the second support plate are welded and integrated on the bottom surface side of the guide groove formed in the first support plate.

  With this configuration, welding can be integrated at a position away from the heat storage material to be placed, and high-temperature gas such as exhaust gas is supplied from the heat storage material side, so that the welding location is not easily affected by heat. Therefore, it is difficult to damage and can be used for a long time. Further, even if the welded portion is damaged, the second support plate is guided by the guide groove, so there is no fear of displacement.

  The first support plate and the second support plate are further provided with a rectangular frame that guides the periphery in a state where the first support plate and the second support plate are crossed with each other, and the frame has one of the two opposing walls. A first engagement groove is formed from the upper part of the opposing wall, and a second engagement groove is formed from the lower part of the other opposing wall, and is supported by the first engagement groove at both ends of the first support plate. Preferably, the first engaging portions are formed, and the second engaging portions supported by the second engaging grooves are formed at both ends of the second support plate.

  With this configuration, the first support plate and the second support plate can be guided by the frame, so that the overall rigidity is increased and a strong structure can be obtained. The second support plate is supported in a state where it is sandwiched from above and below by the first support plate and the frame. That is, the attachment state of the second support plate that directly supports the heat storage material can be strengthened, and a stable support structure can be obtained.

  The heat storage material supported by the support plate is spherical, and among the support plates, the interval between adjacent support plates is 45 to 85%, preferably 60 to 70%, optimally with respect to the diameter of the heat storage material. It may be 65%.

  With this configuration, the support state of the heat storage material can be stabilized.

  Further, the present invention provides a heat storage device as a means for solving the above-mentioned problem, wherein the heat storage material support base and the heat storage material supported by the heat storage material support base are arranged in a fluid passage, A high temperature gas is supplied to the fluid passage from an upper side where the heat storage material is located, and a low temperature gas is supplied from a lower side where the heat storage material support is located.

  In addition, what is necessary is just to select suitably the space | interval of the said support plate, ie, a guide groove, according to the size of a thermal storage material.

  According to the present invention, the guide groove is formed at a predetermined interval on the first support plate, and the second support plate is supported by the guide groove, so that the heat storage material is simple and inexpensive. It is possible to accurately position the interval between the second support plates that support. Further, it is not always necessary to integrate the first support plate and the second support plate, so that the workability is improved and the yield is improved.

  Embodiments according to the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 shows a heat storage material support 1 according to this embodiment. The heat storage material support 1 includes a first support plate 2, a second support plate 3, and a frame 4.

  As shown in FIG. 2, the first support plate 2 is formed of a substantially rectangular plate (for example, a flat bar), and guide grooves 5 are formed at predetermined intervals on one side edge portion, and on both end portions. A first engaging portion 6 is provided. The 2nd support plate 3 is arrange | positioned at the guide groove 5, and the space | interval shall be a value which can support the thermal storage material 11 so that it may mention later. First engaging portions 6 are provided at both ends of the first support plate 2. The first support plate 2 is pressed, and the guide groove 5 and the first engaging portion 6 are also processed at the same time. Therefore, if the mold accuracy is increased, the position of the guide groove 5 can be obtained with high accuracy. And since it can mass-produce, it becomes possible to produce at low cost.

  As shown in FIG. 2, the second support plate 3 is formed of a substantially rectangular plate-like body (for example, a flat bar) that can be formed by pressing, as with the first support plate 2. A second engaging portion 7 is provided. The second support plate 3 intersects with the first support plate 2 (here, orthogonal) and is arranged to be guided by the guide groove 5. In this state, the distance between the second support plates 3 can be obtained with high accuracy by the guide grooves 5 formed as described above. In this case, the interval between the adjacent second support plates 3 is 45 to 85%, preferably 60 to 70%, and optimally 65% of the diameter if the heat storage material 11 to be placed is spherical. Thereby, it becomes possible to place the heat storage material 11 in a stable state without dropping. Further, the upper edge portion of the first support plate 2 and the upper edge portion of the second support plate 3 are located in the same plane. However, the upper edge portion of the second support plate 3 can be positioned above the first support plate 2 as necessary. Moreover, the upper edge part of the 2nd support plate 3 does not necessarily need to be located in the same plane, For example, you may change height so that it can arrange in concave shape.

  As shown in FIG. 2, the frame body 4 is a combination of four plate-like bodies. Of the two sets of opposing walls, the frame body 4 is provided on the upper part of one opposing wall (the first side wall 8 a and the second side wall 8 b). Are formed with first engaging grooves 9 to be engaged with the first engaging portions 6 of the first support plate 2, respectively, and the other opposing walls (the third side wall 8c and the fourth side wall 8d) have the first engaging grooves 9 below them. 2nd engagement groove | channel 10 with which the 2nd engagement part 7 of the support plate 3 engages is formed, respectively.

  The heat storage material support 1 having the above-described structure is assembled as follows.

  First, the first support plate 2 is arranged with an interval so that the side edge portion in which the guide groove 5 is formed is located at the upper part (here, three plates are arranged in parallel). Then, the second support plate 3 is placed so as to intersect the first support plate 2 and is positioned in the guide groove 5. Thereby, the 1st support plate 2 is aligned and the arrangement | positioning of the 2nd support plate 3 after the 2nd sheet | seat becomes easy (here, 11 sheets are arrange | positioned).

  Thereafter, one of the second opposing walls (for example, the third side wall 8 c) is disposed on one end side of each second support plate 3 among the plate-like bodies constituting the frame body 4, and the second support plate 3 is second. The engaging portion 7 is engaged with the second engaging groove 10. Thereby, the position of the longitudinal direction of each 2nd support plate 3 can be arrange | equalized. Further, one of the first opposing walls (for example, the first side wall 8 a) is disposed on one end side of the first support plate 2, and the first engagement portion 6 is positioned in the first engagement groove 9. And the end surface of the 3rd side wall 8c is contact | abutted to the 1st side wall 8a, and the contact part is integrated by welding. Thereby, a desired positional relationship can be obtained between the first support plate 2 and the second support plate 3. Furthermore, the 2nd side wall 8b and the 4th side wall 8d are attached, and the contact stand of each side wall 8a-8d is integrated by welding, and the support stand 1 for heat storage materials is completed. Further, the second support plate 3 is welded and integrated on the bottom surface side of the guide groove 5 of the first support plate 2 as necessary. Here, the welding location between the support plates is the deepest position of the guide groove 5 as shown in FIG. However, the welding position does not necessarily need to be performed between all the support plates, and may be performed at a necessary position in consideration of the overall strength (in FIG. 4, every second welding is performed). .

As described above, the heat storage material support 1 is completed. According to this heat storage material support 1, the distance between the second support plates 3 can be set to a value capable of supporting the heat storage material 11 simply by positioning the second support plate 3 in the guide groove 5 of the first support plate 2. be able to. The first support plate 2 and the second support plate 3 do not necessarily have to be integrated by welding. This eliminates the need for welding and subsequent removal (removing impurities made of metal oxide called “NORO”, SiO _2, etc.). Therefore, it is very excellent in workability and can be produced with high accuracy.

  In the embodiment, as shown in FIGS. 3 and 4, the diameter of the heat storage material 11 is φA, the thickness of the second support plate 3 is B, the interval between adjacent second support plates 3 is C, and the first support is provided. When the thickness of the plate 2 is D, the reference value CH of the dimension C, the allowable range CP of the dimension C, the allowable range BP of the dimension B, and the allowable range DP of the dimension D are determined as follows.

  Moreover, in the said embodiment, although the 1st support plate 2 and the 2nd support plate 3 were guided by the frame 4, what was assembled in the state which crossed the 1st support plate 2 and the 2nd support plate 3 Can also be installed in a furnace or the like. Further, by making the lengths of the support plates 2 and 3 different, it is possible to take various planar shapes such as a circle and a polygon, and the heights of the support plates 2 and 3 can be set freely. . Furthermore, it is also possible to install a plurality of heat storage material support bases 1 in combination according to the cross-sectional shape of the passage to be arranged.

  A heat storage material 11 is placed on the heat storage material support 1 having the above-described configuration, and is used as the heat storage device 12. In this case, for example, the height dimension of the frame body 4 is higher than the height dimension of the first support plate 2 and the second support plate 3 so that there is no problem such that the heat storage material 11 to be placed rolls down to the side. By enlarging, you may make it form the concave space which can accommodate the thermal storage material 11. FIG. In addition, as described above, such a concave space has different height dimensions of the second support plate 3, for example, the surface on which the upper edge portion of the second support plate 3 is located is concave. It is feasible.

  The heat storage device 12 is incorporated in, for example, a heat storage burner device 13 shown in FIG. 5 (for details, see Japanese Patent No. 3182045) and functions as follows.

  That is, the heat storage material support 1 is installed in the middle of the exhaust passage 14 of the heat storage burner device 13, and the heat storage material 11 is placed thereon. Thereby, after the hot gas in the furnace discharged through the burner (in FIG. 5, the flow direction of the hot gas is indicated by a solid arrow) passes through the heat storage material 11 and is absorbed, the support for the heat storage material It is discharged to the outside through the table 1. Therefore, the air that has been absorbed by the heat storage material 11 and the temperature has decreased flows to the welded portion between the support plates 2 and 3. For this reason, it is hard to damage a welding location and it is possible to maintain a favorable state over a long period of time. Further, during the preheating of the burner, the air that has taken in outside air (in FIG. 5, the flow direction of outside air is indicated by a dotted arrow) is passed through the heat storage material 11 from the heat storage material support base 1 and radiated from the heat storage material 11. It supplies by heating.

  In the above-described embodiment, the guide groove 5 is formed only on the first support plate 2. However, as shown in FIG. 6, by forming the guide groove 15 on the corresponding position of the second support plate 3. The two may be engaged with each other. According to this, only by assembling the first support plate 2 and the second support plate 3, the positional relationship between them can be set to a desired state. Therefore, the frame 4 is not always necessary. However, it is preferable that the support plates 2 and 3 are integrated with a jig (not shown) or temporarily fixed by welding or the like until they are assembled to a heat storage burner device or the like. Further, the depth of the guide groove 15 formed in the second support plate 3 is sufficient as long as the displacement of the first support plate 2 can be prevented. When the guide groove 15 is formed in the second support plate 3, the welded portion between the first support plate 2 and the second support plate 3 is the lower edge portion of the second support plate 3 (inlet side of the guide groove 15: In FIG. 6, it is described as “welded spot”.

It is a perspective view of the support stand for heat storage materials which concerns on this embodiment. FIG. 2 is an exploded perspective view of FIG. 1. FIG. 2 is a partial plan view of FIG. 1. FIG. 4 is a front sectional view of FIG. 3. It is sectional drawing which shows the state which integrated the support stand for heat storage materials shown in FIG. 1 in the heat storage type burner apparatus. It is a fragmentary perspective view which shows the example of an assembly | attachment of a 1st support plate and a 2nd support plate. It is a front view which shows the support stand for heat storage materials which concerns on a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Thermal storage material support stand 2 ... 1st support plate 3 ... 2nd support plate 4 ... Frame 5 ... Guide groove 6 ... 1st engaging part 7 ... 2nd engaging part 8a-8d ... Side wall 9 ... 1st Engagement groove 10 second engagement groove 11 heat storage material 12 heat storage device 13 heat storage burner device 14 exhaust passage 15 guide groove

Claims (5)

A first support plate;
A second support plate placed across the first support plate,
Forming a plurality of guide grooves at a predetermined interval on at least the first support plate;
By supporting the second support plate with the guide groove, the support for the heat storage material is set to a value capable of preventing the heat storage material to be placed in the gap formed between the adjacent second support plates. Stand.   2. The heat storage material support base according to claim 1, wherein the first support plate and the second support plate are welded and integrated on a bottom surface side of a guide groove formed in the first support plate. A rectangular frame for guiding the periphery in a state where the first support plate and the second support plate are assembled so as to cross each other;
The frame body is formed with a first engagement groove from the upper part of one of the two opposing walls, and a second engagement groove from the lower part of the other opposing wall,
Forming first engagement portions supported by the first engagement grooves at both ends of the first support plate;
The support base for a heat storage material according to claim 1 or 2, wherein a second engagement portion supported by the second engagement groove is formed at each end portion of the second support plate. The heat storage material supported by the support plate is spherical,
The support for a heat storage material according to any one of claims 1 to 3, wherein an interval between adjacent support plates among the support plates is 45 to 85% with respect to a diameter of the heat storage material. Stand. The heat storage material support base according to any one of claims 1 to 4,
A heat storage material supported by the support for heat storage material is disposed in the fluid passage,
A heat storage device, wherein a high temperature gas is supplied to the fluid passage from an upper side where the heat storage material is located, and a low temperature gas is supplied from a lower side where the support for heat storage material is located.

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