Mounting mechanism and air pre-heater heat storage element

Abstract

The utility model relates to the technical field of boiler equipment, in particular to an installation mechanism and an air pre-heater heat storage element. Comprising a cover plate, at least one partition plate and a first baffle, the partition plate is fixedly arranged on the inner wall of the cover plate, and the first baffle is fixedly arranged at the bottom end of the cover plate; the placing part comprises at least one mounting shell and at least one second baffle, the mounting shell is arranged on the first baffle and between the two partition plates, and the second baffle is fixedly connected with the inner wall of the bottom end of the mounting shell. The problem that the heat exchange pieces are tedious to install is solved through the arrangement of the containing pieces and the partition plates, the heat exchange pieces can be installed in a grouped mode and are convenient to disassemble, and meanwhile air circulation is more convenient through the arrangement of the heat dissipation holes.

Description

TECHNICAL FIELD

[0001] The utility model relates to a boiler equipment technical field, especially a kind of installation mechanism and air preheater heat storage element. BACKGROUND

[0002] Supercritical parameter variable pressure operation spiral pipe coil once-through boiler designed and manufactured according to some special requirements, adopts single furnace, once intermediate reheating, four corner tangential combustion mode, balance ventilation, solid slagging, full-steel suspension structure Π type boiler, open-air layout coal-fired boiler. Boiler combustion system is designed according to medium-speed mill cold once-through pulverizing system. 24 direct-flow burners are arranged in the lower part of furnace in six layers at four corners, and coal powder and air are sent in from four corners and burned in tangential mode in furnace. The furnace bottom slagging system uses mechanical slagging scraper slag extractor slag removal device. Air preheater, as the heat exchange equipment of boiler, transmits the heat carried in flue gas discharged from the tail of boiler to air before entering the boiler through radiating fins, and preheats air to a certain temperature.

[0003] At present, the existing air preheater has the problems of complicated heat storage element installation and poor heat dissipation, and the air preheater heat storage element is seriously worn due to the fact that the smoke and air resistance is always higher than the design level, which brings great risk to the safe and stable operation of the unit and the load carrying capacity. SUMMARY

[0004] This section aims to outline some aspects of the embodiments of the present utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name, and such simplifications or omissions cannot be used to limit the scope of the present utility model.

[0005] In view of the above or the problem of difficult heat exchange fin installation and poor heat dissipation in the prior art, the present utility model is proposed.

[0006] Therefore, the purpose of the present utility model is to provide an installation mechanism. To solve the above technical problems, the present utility model provides the following technical solutions: including a fixing part, a cover plate, at least one partition and a first baffle, the partition is fixedly arranged on the inner wall of the cover plate, and the first baffle is fixedly arranged at the bottom end of the cover plate; a placing part including at least one installation shell and a second baffle, the installation shell is arranged on the first baffle and between two partitions, and the second baffle is fixedly connected with the inner wall of the bottom end of the installation shell.

[0007] As a preferred solution of the installation mechanism of the present utility model, the cover plate has a first accommodating space in the middle, and the placing part is arranged in the first accommodating space.

[0008] As a preferred scheme of the installation mechanism, a plurality of first heat dissipation holes are evenly distributed on the cover plate.

[0009] As a preferred scheme of the installation mechanism, the heat dissipation holes are inclined holes, a first upper inclined hole is arranged on the upper half of the cover plate, and a first lower inclined hole is arranged on the lower half of the cover plate.

[0010] As a preferred scheme of the installation mechanism, a first waist hole is arranged on the first baffle.

[0011] As a preferred scheme of the installation mechanism, the installation shell has a second accommodating space, and the cross section of the installation shell is geometrically similar to the first accommodating space.

[0012] As a preferred scheme of the installation mechanism, a plurality of second heat dissipation holes are arranged around the installation shell, a second upper inclined hole is arranged on the upper half of the installation shell, and a second lower inclined hole is arranged on the lower half of the installation shell.

[0013] As a preferred scheme of the installation mechanism, a second waist hole is arranged on the second baffle, and the second waist hole is aligned with the first waist hole.

[0014] The installation mechanism has the advantages that the heat exchange sheet can be installed in groups, is convenient to disassemble, and the air is more convenient to circulate due to the arrangement of the heat dissipation holes.

[0015] In actual use, the air preheater heat storage element is seriously worn, which affects the safe operation of the unit.

[0016] To solve the above technical problems, the installation mechanism is used in the air preheater heat storage element.

[0017] As a preferred scheme of the air preheater heat storage element, the heat exchange sheet is composed of inclined plates and straight plates.

[0018] The air preheater heat storage element has the advantages that the heat exchange sheet is updated and reconstructed, the resistance of the air preheater is reduced, and the heat exchange performance of the air preheater is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the premise of not deviating from the concept of the present application. Among them:

[0020] Figure 1 It is a whole schematic view of the mounting mechanism.

[0021] Figure 2 It is another angle schematic view of the mounting mechanism.

[0022] Figure 3 It is a schematic view of the placing piece.

[0023] Figure 4 It is another angle schematic view of the placing piece.

[0024] Figure 5 It is a direction schematic view of the first heat dissipation hole.

[0025] Figure 6 It is a schematic view of the gas flowing from top to bottom.

[0026] Figure 7 It is a schematic view of the gas flowing from bottom to top. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification.

[0028] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without deviating from the concept of the present application, therefore the present application is not limited to the specific embodiments disclosed below.

[0029] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. In this specification, "in one embodiment" does not mean the same embodiment, nor is it an independent or alternative embodiment.

[0030] Embodiment 1

[0031] Reference Figures 1-7 , the first embodiment of the present application provides a mounting mechanism, which can realize convenient installation and better heat dissipation effect, which comprises a fixing piece 100 and a placing piece 200.

[0032] Specifically, the fixing part 100 comprises a cover plate 101, at least one partition plate 102 and a first baffle 103, the partition plate 102 is fixedly arranged on the inner wall of the cover plate 101, and the first baffle 103 is fixedly arranged at the bottom end of the cover plate 101; the placing part 200 comprises at least one mounting shell 201 and a second baffle 202, the mounting shell 201 is arranged on the first baffle 103 and between the two partition plates 102, and the second baffle 202 is fixedly connected with the inner wall at the bottom end of the mounting shell 201.

[0033] Further, the cover plate 101 is semicircular and is divided into a front cover plate, a rear cover plate, a left cover plate and a right cover plate.

[0034] Among them, the cover plate 101 has a first containing space M in the middle, and the two ends of the partition plate 102 are fixedly arranged on the inner walls of the left cover plate and the right cover plate.

[0035] The first baffle 103 is fixedly arranged at the bottom of the left cover plate and the right cover plate to prevent the placing part 200 from falling off. The placing part 200 is arranged in the first containing space M.

[0036] The mounting shell 201 is not blocked from top to bottom, the second baffle 202 is fixedly arranged along the bottom end of the mounting shell 201, a second containing space Q is formed in the mounting shell 201, a plurality of heat exchange fins 300 are arranged in the second containing space Q, and the cross section of the mounting shell 201 is geometrically similar to the first containing space M.

[0037] Preferably, a plurality of first heat dissipation holes 101a are evenly arranged on the cover plate 101, the heat dissipation holes 101a are inclined holes, a first upper inclined hole 101a-1 is arranged on the upper half of the cover plate 101, and a first lower inclined hole 101a-2 is arranged on the lower half of the cover plate 101.

[0038] Preferably, a plurality of second heat dissipation holes 201a are arranged around the mounting shell 201, a second upper inclined hole 201a-1 is arranged on the upper half of the mounting shell 201, and a second lower inclined hole 201a-2 is arranged on the lower half of the mounting shell 201.

[0039] Preferably, a first waist hole 103a is arranged on the first baffle 103, a second waist hole 202a is arranged on the second baffle 202, and the second waist hole 202a is aligned with the first waist hole 103a.

[0040] In use, first, a plurality of heat exchange sheets 300 are grouped, one group of heat exchange sheets 300 is placed in the placing piece 200, and the remaining heat exchange sheets 300 are placed in other placing pieces 200 respectively. When installing, a plurality of placing pieces 200 can be directly placed in corresponding partitions 102, and when taking out, the heat exchange sheets 300 do not need to be taken out one by one, and the placing pieces 200 can be directly taken out. As shown in Figure 6 and Figure 7 As shown, considering that the fixing piece 100 and the placing piece 200 are not good at heat dissipation, the upper inclined holes are arranged in the upper half of the cover plate 101 and the mounting shell 201, and the lower inclined holes are arranged in the lower half of the cover plate 101 and the mounting shell 201. When the flue gas enters from above the cover plate 101, the flue gas flows out downward through the first lower inclined hole 101a-2, and the flue gas on both sides of the cover plate 101 can flow out through the first upper inclined hole 101a-1. When the flue gas enters from below, the flue gas flows out upward through the first upper inclined hole 101a-1, and the flue gas on both sides of the cover plate 101 flows out through the first lower inclined hole 101a-2. Compared with ordinary heat dissipation holes, the design of the inclined holes accelerates the circulation of the flue gas and improves the heat dissipation efficiency. Similarly, when the flue gas enters from above, the flue gas flows out from the second lower inclined hole 201a-2 of the current mounting shell 201, and the flue gas on both sides of the mounting shell flows out from the second upper inclined hole 201a-1. When the flue gas enters from below, it is just the opposite.

[0041] In summary, the arrangement of the placing piece 200 and the partition 102 solves the problem of complicated installation of the heat exchange sheet 300, so that the heat exchange sheet 300 can be installed in groups and is convenient to disassemble, and the arrangement of the heat dissipation holes makes the air flow more conveniently.

[0042] Embodiment 2

[0043] Referring to Figure 3 The second embodiment of the utility model is different from the previous embodiment, which provides a heat exchange sheet 300, solves the problem that the air preheater heat storage element is seriously worn and cannot meet the safety of the unit, and comprises the heat exchange sheet 300, and the heat exchange sheet 300 is arranged in the second containing space Q.

[0044] Specifically, the hot-end heat exchange sheet 300 adopts a compact open plate type, which combines the advantages of heat exchange and straight-through, that is, there are diagonal lines to disturb the wind and smoke, and there are straight lines to be transparent; the cold-end heat exchange sheet 300 adopts a closed anti-blocking plate type, which is composed of a diagonal plate with a plane and a diagonal plate with straight lines, and the two plates are in line contact to form a closed channel, which can avoid element fatigue caused by long-term operation and prevent one pitch channel from being blocked to affect another pitch channel.

[0045] Further, the hot end heat exchange sheet 300 adopts atmospheric corrosion resistant material (Corten steel), thickness 0.5mm; the cold end adopts decarburized steel plated enamel (static dry method) process, base material thickness 0.8mm, single side enamel thickness 0.15mm.

[0046] In summary, through the update and modification of the heat exchange sheet 300, the air preheater resistance of the unit is reduced, and the air preheater heat exchange performance is improved.

[0047] Importantly, it should be noted that the constructions and arrangements of the present application shown in the various different exemplary embodiments are merely illustrative. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of elements or positions can be altered or varied. Accordingly, all such modifications are intended to be included within the scope of the present application. The order or sequence of any process or method steps can be varied or re-sequenced without materially affecting the application. Any "means plus function" clauses are intended to cover the structures described herein as performing the recited functionality and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present application. Accordingly, the present application is not limited to the particular embodiments described and illustrated herein, but extends to equivalents of which the foregoing describes are intended to cover.

[0048] Furthermore, in order to provide a concise description of exemplary embodiments, all features of an actual implementation can not be described (i.e., those unrelated to the best mode of practicing the present application, or those that are well known in the art).

[0049] It is to be understood that in the development of any actual implementation, numerous implementation-specific decisions can be made. These development efforts can significantly impact the complexity of the illustrative embodiments described herein and the specifics of the illustrative embodiments can be incorporated into other implementations all without departing from the spirit and scope of the present application. Additionally, certain

[0050] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A mounting mechanism characterized by: Including, The fixing piece (100) comprises a cover plate (101), at least one partition plate (102) and a first baffle (103), the partition plate (102) is fixedly arranged on the inner wall of the cover plate (101), and the first baffle (103) is fixedly arranged on the bottom end of the cover plate (101); The placing piece (200) comprises at least one mounting shell (201) and at least one second baffle (202), the mounting shell (201) is arranged on the first baffle (103) and between the two partition plates (102), and the second baffle (202) is fixedly connected with the inner wall of the bottom end of the mounting shell (201).

2. The mounting mechanism of claim 1, wherein: The cover plate (101) has a first containing space (M) in the middle, and the placing piece (200) is arranged in the first containing space (M).

3. The mounting mechanism of claim 1 or 2, wherein: A plurality of first heat dissipation holes (101a) are evenly arranged on the cover plate (101).

4. The mounting mechanism of claim 3, wherein: The first heat dissipation holes (101a) are inclined holes, a first upper inclined hole (101a-1) is arranged in the upper half of the cover plate (101), and a first lower inclined hole (101a-2) is arranged in the lower half of the cover plate (101).

5. The mounting mechanism of claim 4, wherein: A first waist hole (103a) is arranged on the first baffle (103).

6. The mounting mechanism of claim 5, wherein: The mounting shell (201) has a second containing space (Q) therein, and the cross section of the mounting shell (201) is geometrically similar to the first containing space (M).

7. The mounting mechanism of claim 6, wherein: A plurality of second heat dissipation holes (201a) are arranged around the mounting shell (201), a second upper inclined hole (201a-1) is arranged in the upper half of the mounting shell (201), and a second lower inclined hole (201a-2) is arranged in the lower half of the mounting shell (201).

8. The mounting mechanism of claim 7, wherein: A second waist hole (202a) is arranged on the second baffle (202), and the second waist hole (202a) is aligned with the first waist hole (103a).

9. A regenerative element for an air preheater, characterized by: The mounting mechanism comprises the mounting mechanism according to any one of claims 6-8, and The heat exchange sheet (300) is arranged in the second containing space (Q).

10. The heat storage element of the air preheater according to claim 9, characterized in that: The heat exchange sheet (300) is composed of an inclined plate and a straight plate.

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