TW202108938A - High-efficiency sealing structure of once-through modular boiler capable of preventing the abutting end faces of the two furnace shells from deformation due to heat, pressure and locking forces - Google Patents

Abstract

The present invention discloses a high-efficiency sealing structure of a once-through modular boiler, which includes two first furnace shells, at least one second furnace shell arranged between the two first furnace shells, and a plurality of refractory insulation layers separately arranged between the first furnace shell and the second furnace shell. The abutting end faces of the first and second furnace shells are respectively provided with first and second pressing ribs. Accordingly, the first and second furnace shells and the first and second pressing ribs respectively clamp and squeeze each refractory insulation layer to form multiple deformations, and define the first and second diameter-reduced channels, so that the path of the first and second furnace shells flowing through the refractory insulation layer from the inside to the outside is in the form of an S-shaped tortuous shape, and the air-tight effect is further ensured through the barrier and pressure of the path itself.

Description

High-efficiency sealing structure of tubular modular boiler

The present invention relates to a technical field related to boiler equipment, in particular to a high-efficiency sealing structure of a tubular modular boiler.

In the previous technology, the size of the boiler will change due to the design requirements of the hot water volume. When the manufacturer is prone to material preparation, it is necessary to prepare different specifications of materials and spare parts for different boiler designs, resulting in material inventory pressure and cost burdens.

In order to avoid the risks and costs related to the procurement of materials and spare parts in the prior art, the inventor of this case has also proposed a solution such as the Chinese Patent No. M493652 (hereinafter referred to as Document 1). According to the content disclosed in Document 1, it is known that two semi-cylindrical and symmetrical first furnace shells are combined with an expandable number of second furnace shells to arbitrarily connect and assemble to meet the boiler specifications of different design requirements.

Although the document 1 teaching plan can solve the lack of common materials in the previous technology, the inventor based on the design concept of excellence, and further made a structural improvement in response to its shortcomings, for example: the loss of each first furnace shell in document 1 The profile is semi-cylindrical. When packaging or entering the container, the volume space of the box and the container is rectangular, so the arc outer profile is likely to cause space waste and increase ineffective transportation costs.

In Document 1, the first furnace shell and the second furnace shell are adjacent to the end surface, or due to processing flatness, locking pressure, etc., a gap will occur between the first furnace shell and the second furnace shell, which will cause energy loss. In order to avoid this phenomenon, it will be in the first Between the adjacent end faces of the first and second furnace shells, a refractory insulation layer is provided.

Although the gap between the adjacent end faces of the first and second furnace shells can be filled through the refractory insulation layer, the effect is not as optimistic as expected; the reason is that when the adjacent end faces of the first and second furnace shells are locked to compress the refractory insulation layer, the first and second furnace shells The adjacent end surface of the furnace shell may be further deformed due to changes in heat, pressure, locking force, etc., which will force the refractory insulation layer to change and deform, and this deformation cannot be expected and controlled, resulting in very limited sealing effect, and It requires frequent inspections and adjustments by engineering personnel.

In view of the above-mentioned problems and deficiencies of the prior art, the main purpose of the present invention is to provide a tubular modular boiler with a high-efficiency sealing structure that solves the above-mentioned deficiencies of the previous art through the creation and new design of the structure.

According to the above objective of the present invention, the present invention proposes a tubular modular boiler high-efficiency sealing structure, which includes two first furnace shells, at least one second furnace shell arranged between the two first furnace shells, and a plurality of separate furnace shells. The refractory insulation layer between the first and second furnace shells; wherein the abutting end faces of the first and second furnace shells are respectively provided with first and second compression ribs. The first and second furnace shells and the first and second compression ribs respectively clamp and squeeze each refractory insulation layer to form multiple deformations, and define the first and second diameter shrinking channels, so that the first and second furnace shells The path that flows through the refractory insulation layer from inside to outside is in an S-shaped zigzag pattern. Through the barrier and back pressure of the path itself, the air-tight effect is further ensured.

10(20)‧‧‧The first furnace shell

12‧‧‧First chamber

14‧‧‧Locking end face

16‧‧‧First compression rib

30‧‧‧Second furnace shell

32‧‧‧Oven Room

34‧‧‧Second locking end face

36‧‧‧Second compression rib

40‧‧‧Fire-resistant insulation layer

S1, S2‧‧‧The first and second diameter reduced channels

Figure 1 is a schematic diagram of the appearance of an embodiment of the present invention.

Figure 2 is an exploded schematic view of the partial components of the embodiment shown in Figure 1.

Figure 3 is a schematic partial cross-sectional view of the embodiment shown in Figure 1.

Figure 4 is a schematic diagram of the operation of the embodiment of the present invention

Hereinafter, please refer to the related drawings to further describe the embodiment of the high-efficiency sealing structure of the tubular modular boiler of the present invention. In order to facilitate the understanding of the embodiments of the present invention, the same components are described below with the same symbols.

Please refer to Figures 1 to 3, the high-efficiency sealing structure of the tubular modular boiler of the present invention includes two first furnace shells 10 (20), at least one second furnace shell 30, and a plurality of refractory insulation layers 40 .

Each of the above-mentioned first furnace shells 10 (20) has a rectangular preset contour, and has a first chamber 12 communicating with the outside, and a first locking end surface 14 surrounding the open end of the first chamber 12; wherein , The first locking end surface 14 is fixedly provided with a plurality of first pressing ribs 16 arranged around the open end of the first chamber 12.

The above-mentioned second furnace shell 30 is a rectangular preset contour, which is set between the two first furnace shells 10 (20), and has a furnace chamber 32 formed through the second furnace shell 30 in the extending direction, and a furnace chamber along the extending direction of the second furnace shell 30. The two open ends of 32 are respectively surrounded by a second locking end surface 34; wherein, the second locking end surface 34 is fixedly provided with a plurality of second pressing ribs 36 arranged around each open end of the furnace chamber 32. During implementation, the second pressing rib 36 and the first pressing rib 16 are arranged in a staggered configuration, that is, the second pressing rib 36 is located outside or inside the surrounding contour of the first pressing rib 16, and the first and second pressing ribs 16 The cross-sectional profile of, 36 is arc-shaped.

Each of the above-mentioned fire-resistant and heat-insulating layers 40 is an elastic body arranged between the first and second locking end surfaces 14 and 34.

Therefore, the foregoing is an introduction to the various components and assembly methods of the high-efficiency sealing structure of the tubular modular boiler in a preferred embodiment provided by the present invention. The operating characteristics of the embodiments of the present invention are introduced as follows.

First, the first and second locking end surfaces 14, 34 respectively abut the opposite ends of the matched refractory insulation layer 40, so that the refractory insulation layer is deformed for the first time to eliminate the abutment of the first and second furnace shells 10 (20), 30 The first and second locking end faces 14, 34 have a gap. Then, the first and second compression ribs 16, 36 are pressed against the refractory insulation layer 40 to form a second deformation. Since the contours of the first and second compression ribs 16, 36 are arc-shaped surfaces, the average force is applied through the arc-shaped surfaces In the refractory insulation layer 40, the refractory insulation layer 40 is deformed along (adhered to) the surface of the first and second compression ribs 16, 36, and the pressure exerted by the first and second compression ribs 16, 36 is evenly distributed, and The surfaces of the first and second pressing ribs 16, 36 and the first and second locking end surfaces 14, 34 jointly form (define) the first and second diameter reduction channels S1 and S2 (as shown in Fig. 4).

The arc-shaped surface of the first and second pressing ribs 16, 36 is different from the conventional rectangular profile in the previous art. Because of the right angle and the physical deformation limit of the refractory insulation layer 40, a gap is formed at the right-angle periphery. Cannot fit tightly like an arc. It is more different from the triangular cross-section profile design commonly used in the previous art, because the sharp-angled end edge will cut the risk of cutting the refractory insulation layer 40.

Please refer to Figs. 3 and 4 together. It can be clearly seen that the surfaces of the first and second pressing ribs 16, 36 and the first and second locking end surfaces 14, 34 jointly form (define) the first and second diameters. The contraction channels S1 and S2 will make the path from the inside to the outside of the first and second furnace shells 10 (20), 30 through the refractory insulation layer 40 into an S shape. Through the obstruction and back pressure of the tortuous path itself, the gas will be further ensured. Dense effect.

For example, when the heating of the boiler causes the first and second furnace shells 10 (20) and 30 to form thermal deformation (the first and second locking end faces 14, 34), the refractory insulation layer 40 can be used for the first time Deform to eliminate. And when the internal pressure of the first and second furnace shells 10 (20), 30 rises and hot air is pushed to move outward along the first and second locking end faces 14, 34, the hot air will first be blocked by the second pressing rib 36 , Can only change the sport It moves outward through the second diameter reduction channel S2, but the first back pressure will be formed due to the path diameter reduction.

When the remaining hot air moves outward through the second diameter-reduced passage S2, it is blocked by the first pressing rib 16 and can only change the direction of movement again and move toward the first diameter-reduced passage S1, but it will be reduced due to the path diameter again. It will form a second back pressure, effectively preventing its leakage.

With the above-mentioned tortuous path and multiple back pressure structural design, the force (pressure) of the hot air movement is further eliminated, so as to achieve the expected benefit of the tightness requirement.

The above description is only the preferred embodiments of the present invention. It is intended to clarify the characteristics of the present invention and is not intended to limit the scope of the embodiments of the present invention. Those skilled in the art make equal changes based on the present invention. , And changes well known to those skilled in the art should still fall within the scope of the present invention.

10(20)‧‧‧The first furnace shell

30‧‧‧Second furnace shell

Claims (3)

An efficient sealing structure for a tubular modular boiler, comprising: two first furnace shells, which are a rectangular conveying profile with a first chamber communicating with the outside, and a first chamber enclosed along the open end of the first chamber A locking end surface and a plurality of first pressing ribs arranged along the first locking end surface and having an arc-shaped cross section; at least one second furnace shell has a rectangular profile and is arranged between each of the first furnace shells, It has a furnace chamber penetratingly formed along the extension direction of the second furnace shell, a second locking end surface surrounding the two open ends of the furnace chamber, and a second locking end surface arranged along the second locking end surface and having an arc-shaped cross section. Pressing ribs; and a plurality of fire-resistant insulation layers are arranged between the first and second locking end surfaces; wherein the first and second locking end surfaces respectively abut each of the fire-resistant insulation layers to form a first Once deformed, the first and second compression ribs are pressed against each of the refractory insulation layers to form a second deformation, and the first and second compression ribs and the second and the first compression ribs are matched with each other to form a second deformation. A locking end surface jointly forms (defines) a first and a second diameter-reduced passage that communicate with each other. For example, the high-efficiency sealing structure of the tubular modular boiler described in item 1 of the scope of patent application, wherein each of the second pressing ribs is located outside the surrounding contour of each of the first pressing ribs. For example, the high-efficiency sealing structure of the tubular modular boiler described in item 1 of the scope of patent application, wherein each of the second pressing ribs is located inside the surrounding contour of each of the first pressing ribs.

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