Cleaning type H-shaped economizer

Abstract

The utility model discloses a clean type H-shaped economizer which comprises a plurality of supports, and a plurality of sets of coiled pipes are arranged among the supports at equal intervals. A plurality of sets of fin assemblies are arranged on the outer wall of the coiled pipe at equal intervals. Each fin assembly comprises a first fin and a second fin, a second fin; the multiple fixing blocks are fixed to the sides, opposite to each other, of the first fins and the second fins on the same column, the tops of the two supporting plates are connected with a movable plate in a sliding and penetrating mode, and the bottom of the movable plate is provided with a connecting mechanism used for moving the fixing blocks in different columns. By means of the arrangement mode that the fin assembly, the movable plate and the connecting mechanism are matched, the connecting mechanism can drive the first fins and the second fins to slide on the outer wall of the coiled pipe in a small range, dust attached to the outer wall of the coiled pipe can be scraped away conveniently, meanwhile, the first fins and the second fins move, the dust can be shaken down, and the dust removal efficiency is improved. The ash removal efficiency is improved, and the heat receiving of the coiled pipe is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of economizers, in particular to a clean H-type economizer. Background Art

[0002] Economizer is a device installed at the lower part of the flue at the rear of the boiler to recover the waste heat of the exhaust gas. It heats the boiler feed water into a heating surface of saturated water under the drum pressure. Because it absorbs the heat of high-temperature flue gas, it reduces the exhaust temperature of the flue gas, saves energy and improves efficiency, so it is called an economizer.

[0003] The existing steel tube economizer is not limited by pressure and can be used as a boiling type. It is generally made of carbon steel tubes, and the existing steel tube economizer is composed of horizontally arranged serpentine tubes. Most of the tubes will add H-shaped fins and ribs outside to absorb the heat of low-temperature flue gas and reduce the exhaust temperature to improve the heat transfer effect. However, the existing H-shaped fins are basically directly fixed on the outer wall of the serpentine tube by welding. When dust and dirt are piled on the outer wall of the serpentine tube, it is difficult to remove the H-shaped fins from the serpentine tube. In addition, the boiler's smoke adhesion is high, and simple soot blowing and other operations cannot clean the outer wall of the serpentine tube, affecting the heat receiving efficiency of the serpentine tube on the economizer. Utility Model Content

[0004] The purpose of the utility model is to provide a clean H-type economizer to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a clean H-type economizer, comprising: a plurality of brackets, wherein a plurality of groups of serpentine tubes are equidistantly arranged between the plurality of brackets;

[0006] The outer wall of the serpentine tube is equidistantly provided with a plurality of groups of fin assemblies, and the fin assemblies include:

[0007] A first fin, wherein the first fin is mounted on the upper surface of a plurality of serpentine tubes at the same level;

[0008] A second fin, the second fin being mounted on the lower surface of a plurality of serpentine tubes at the same level;

[0009] Multiple fixed blocks are respectively fixed on the back side of the first fin and the second fin on the same column, both sides of the top of the multiple brackets are fixedly connected with support plates, the tops of the two support plates are slidably interlaced with movable plates, and the bottom of the movable plate is provided with a connecting mechanism for moving fixed blocks in different vertical columns.

[0010] Preferably, the connecting mechanism comprises:

[0011] A locking screw, the locking screw being interlaced and connected with the middle thread of the moving plate;

[0012] A first clamping member, which is disposed at the bottom of the locking screw and is used to move the positions of a plurality of second fins in different longitudinal rows;

[0013] The second clamping member is arranged below the first clamping member, and the second clamping member is used for moving the positions of the plurality of first fins in different longitudinal rows.

[0014] Preferably, the first clamping member comprises:

[0015] A plurality of first connecting rods, wherein the plurality of first connecting rods are arranged in parallel between the plurality of brackets;

[0016] A first positioning plate, the positioning plate is integrally formed and fixed between the plurality of first connecting rods;

[0017] A plurality of first penetration rods are respectively fixed at the bottom of the plurality of first connecting rods at equal distances.

[0018] Preferably, the middle portion of the first positioning plate is rotatably interpenetratingly connected to the bottom of the locking screw via a bearing, and the first interpenetrating rod is respectively fixedly interpenetratingly connected to the middle portions of the fixing blocks on one side of the adjacent plurality of longitudinal second fins.

[0019] Preferably, the second clamping member comprises:

[0020] A plurality of second connecting rods, wherein the plurality of second connecting rods are arranged in parallel below the plurality of first connecting rods;

[0021] A second positioning plate, the second positioning plate is integrally formed and fixed between the plurality of second connecting rods;

[0022] A plurality of second interpenetrating rods, wherein the plurality of second interpenetrating rods are respectively fixed at equal distances to the bottoms of the plurality of second connecting rods;

[0023] A plurality of compression springs, wherein the plurality of compression springs are fixed on the upper surface of the second positioning plate in a rectangular array;

[0024] A plurality of connecting screws, wherein the plurality of connecting screws are fixed to the upper surface of the second positioning plate in a rectangular array;

[0025] A plurality of nuts are interlaced and connected with the top threads of adjacent connecting screw rods.

[0026] Preferably, the second penetration rods are respectively fixedly and penetratedly connected with the middle parts of the fixing blocks on one side of the adjacent plurality of longitudinal first fins, and the top of the compression spring is fixedly connected with the lower surface of the first positioning plate.

[0027] Preferably, the connecting screw is arranged in the inner cavity of the compression spring, and the connecting screw is slidably and interlacedly connected with the corners of the first positioning plate.

[0028] Technical effects and advantages of the utility model:

[0029] (1) The utility model adopts a configuration mode in which a fin assembly, a movable plate and a connecting mechanism are coordinated, and utilizes the movement of the movable plate between the support plates so that the connecting mechanism can drive the first fin and the second fin to slide in a small range on the outer wall of the serpentine tube, thereby facilitating the scraping of dust adhering to the outer wall of the serpentine tube. At the same time, the movement of the first fin and the second fin can also shake off the dust, thereby improving the cleaning efficiency and preventing the dust from affecting the heat reception of the serpentine tube.

[0030] (2) The utility model uses the arrangement mode in which the first clamping member and the second clamping member cooperate with each other, so that the first positioning plate can elastically press down the second positioning plate through the elasticity of the compression spring, so that there is a certain elastic activity space between the first fin and the second fin, which facilitates the stable movement of the first fin and the second fin on the serpentine tube, and facilitates the first fin and the second fin to conduct heat to the serpentine tube in a close fit, thereby improving the stability of the economizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0032] Figure 2 It is a schematic diagram of the side sectional structure of the movable plate of the utility model.

[0033] Figure 3 For this utility model Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0034] In the figure: 1. bracket; 2. serpentine tube; 3. fin assembly; 31. first fin; 32. second fin; 33. fixed block; 4. support plate; 5. movable plate; 6. connecting mechanism; 61. locking screw; 62. first clamping member; 621. first connecting rod; 622. first positioning plate; 623. first through rod; 63. second clamping member; 631. second connecting rod; 632. second positioning plate; 633. second through rod; 634. compression spring; 635. connecting screw; 636. nut. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] The utility model provides Figure 1-3 A clean H-type economizer shown includes: a plurality of brackets 1, wherein the plurality of brackets 1 are two brackets 1, a plurality of groups of serpentine tubes 2 are equidistantly arranged between the two brackets 1, and water flows through the inner cavity of the serpentine tubes 2;

[0037] Further, a plurality of groups of fin assemblies 3 are equidistantly arranged on the outer wall of the serpentine tube 2, and the fin assembly 3 includes: a first fin 31, a second fin 32 and a plurality of fixing blocks 33, the first fin 31 is mounted on the upper surface of the plurality of serpentine tubes 2 at the same level, the second fin 32 is mounted on the lower surface of the plurality of serpentine tubes 2 at the same level, the first fin 31 and the second fin 32 are arranged opposite to each other, and the opposite ends are formed into a plurality of circular groove structures, so that the first fin 31 and the second fin 32 can be simultaneously clamped on the outer wall of the plurality of serpentine tubes 2, and the movement of the first fin 31 and the second fin 32 can scrape the outer wall of the serpentine tube 2, so as to scrape off the dust and dirt adhered to the outer wall of the serpentine tube 2, and the plurality of fixing blocks 33 are respectively fixed on the back side of the first fin 31 and the second fin 32 in the same column, and the movement of the first fin 31 and the second fin 32 in the same vertical column is synchronized through the fixing blocks 33;

[0038] Furthermore, both sides of the top of the multiple brackets 1 are fixedly connected with support plates 4, and the tops of the two support plates 4 are slidably interlaced with movable plates 5, and the moving distance of the movable plates 5 is the spacing between two adjacent first fins 31 in the horizontal direction, so that the first fins 31 and the second fins 32 can be moved to the positions of the adjacent first fins 31 and the second fins 32 respectively, so that the scraping of the outer wall of the serpentine tube 2 is stable;

[0039] Furthermore, a connecting mechanism 6 for moving the fixed blocks 33 in different longitudinal columns is provided at the bottom of the movable plate 5. The connecting mechanism 6 includes: a locking screw 61, a first clamping member 62, and a second clamping member 63. The locking screw 61 is threadedly connected to the middle portion of the movable plate 5. The first clamping member 62 is provided at the bottom of the locking screw 61. The first clamping member 62 is used for moving the positions of the plurality of second fins 32 in different longitudinal columns. The second clamping member 63 is provided below the first clamping member 62. The second clamping member 63 is used for moving the positions of the plurality of first fins 31 in different longitudinal columns. The first clamping member 62 and the second clamping member 63 are respectively used for connecting the plurality of second fins 32 and the plurality of first fins 31 in series, so that the movement of the plurality of first fins 31 and the plurality of second fins 32 is stable.

[0040] Specifically, the first clamping member 62 includes: a plurality of first connecting rods 621, a first positioning plate 622 and a plurality of first interpenetrating rods 623, the plurality of first connecting rods 621 are arranged in parallel between the plurality of brackets 1, the positioning plate 622 is integrally formed and fixed between the plurality of first connecting rods 621, the middle portion of the first positioning plate 622 is rotatably interpenetrated with the bottom of the locking screw 61 through a bearing, and the first positioning plate 622 can be adjusted in height by rotating the locking screw 61, and the plurality of first interpenetrating rods 623 are equidistant from each other. The first positioning plate 622 is fixed to the bottom of the plurality of first connecting rods 621, so that the first positioning plate 622 can simultaneously drive the plurality of first insertion rods 623 to move, and the first insertion rods 623 are respectively fixedly inserted and connected with the middle of the fixing blocks 33 on one side of the plurality of adjacent longitudinal second fins 32, and the height of the first positioning plate 622 is adjusted so that the plurality of second fins 32 can be adjusted in distance at the bottom of the outer wall of the serpentine tube 2, so that it is convenient to be used for the serpentine tubes 2 of different calibers, and the second fins 32 can be scraped on the outer wall of the serpentine tube 2 conveniently;

[0041] Specifically, the second clamping member 63 includes: a plurality of second connecting rods 631, a second positioning plate 632, a plurality of second interpenetrating rods 633, a plurality of compression springs 634, a plurality of connecting screws 635 and a plurality of nuts 636. The plurality of second connecting rods 631 are arranged in parallel below the plurality of first connecting rods 621. The second positioning plate 632 is integrally formed and fixed between the plurality of second connecting rods 631. The plurality of second interpenetrating rods 633 are respectively and equidistantly fixed to the bottom of the plurality of second connecting rods 631, so that the movement of the second positioning plate 632 drives the plurality of second interpenetrating rods 633 to move. The second interpenetrating rods 633 are respectively fixedly interpenetrated with the middle part of the fixing block 33 on one side of the plurality of adjacent longitudinal first fins 31, so that the movement of the second positioning plate 632 can drive the plurality of first fins 31 to move, so that the movement of the first fins 31 is convenient. The plurality of compression springs 634 are fixed to the upper surface of the second positioning plate 632 in a rectangular array. The screws 635 are fixed on the upper surface of the second positioning plate 632 in a rectangular array, and the nuts 636 are interlaced with the top threads of the adjacent connecting screws 635. The top of the compression spring 634 is fixedly connected to the lower surface of the first positioning plate 622. The connecting screws 635 are arranged in the inner cavity of the compression spring 634, and the connecting screws 635 are slidably interlaced with the corners of the first positioning plate 632. Through the compression spring 634, the first fin 31 can be tightly pressed on the top of the serpentine tube 2, so that the movable plate 5 can move freely under the wind force, and can drive the first positioning plate 622 to move. At the same time, there is a certain elastic activity space between the second positioning plate 632 and the first positioning plate 622, so that the first fin 31 and the second fin 32 can scrape and remove dust on the serpentine tube 2, thereby improving the cleaning efficiency, and does not affect the thermal conductivity of the first fin 31 and the second fin 32 and the serpentine tube 2, and does not affect the heat receiving efficiency of the serpentine tube 2 on the economizer.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A clean H-type economizer, comprising: A plurality of brackets (1), wherein a plurality of groups of serpentine tubes (2) are arranged at equal intervals between the plurality of brackets (1); The invention is characterized in that: a plurality of groups of fin assemblies (3) are equidistantly arranged on the outer wall of the serpentine tube (2), and the fin assemblies (3) comprise: A first fin (31), the first fin (31) being mounted on the upper surfaces of a plurality of serpentine tubes (2) at the same level; A second fin (32), the second fin (32) being mounted on the lower surfaces of a plurality of serpentine tubes (2) at the same level; A plurality of fixed blocks (33), wherein the plurality of fixed blocks (33) are respectively fixed to the back side of the first fin (31) and the second fin (32) on the same column, and both sides of the top of the plurality of brackets (1) are fixedly connected to support plates (4), and the tops of the two support plates (4) are slidably interlaced with movable plates (5), and the bottom of the movable plates (5) is provided with a connecting mechanism (6) for moving the fixed blocks (33) in different vertical columns.

2. A clean H-type economizer according to claim 1, characterized in that: The connecting mechanism (6) comprises: A locking screw (61), wherein the locking screw (61) is threadably connected to a middle portion of the movable plate (5); A first clamping member (62), the first clamping member (62) being arranged at the bottom of the locking screw (61), the first clamping member (62) being used for moving the positions of a plurality of second fins (32) in different longitudinal rows; A second clamping member (63), the second clamping member (63) is arranged below the first clamping member (62), and the second clamping member (63) is used to move the positions of a plurality of first fins (31) on different vertical rows.

3. A clean H-type economizer according to claim 2, characterized in that: The first clamping member (62) comprises: A plurality of first connecting rods (621), wherein the plurality of first connecting rods (621) are arranged in parallel between the plurality of brackets (1); a first positioning plate (622), the positioning plate (622) being integrally formed and fixed between the plurality of first connecting rods (621); A plurality of first penetration rods (623), wherein the plurality of first penetration rods (623) are respectively fixed at equal distances to the bottoms of the plurality of first connecting rods (621).

4. A clean H-type economizer according to claim 3, characterized in that: The middle portion of the first positioning plate (622) is rotatably interlaced with the bottom of the locking screw (61) via a bearing, and the first interlaced rod (623) is fixedly interlaced with the middle portions of the fixing blocks (33) on one side of a plurality of adjacent longitudinal second fins (32).

5. A clean H-type economizer according to claim 3, characterized in that: The second clamping member (63) comprises: a plurality of second connecting rods (631), wherein the plurality of second connecting rods (631) are arranged in parallel below the plurality of first connecting rods (621); a second positioning plate (632), the second positioning plate (632) being integrally formed and fixed between the plurality of second connecting rods (631); A plurality of second interpenetrating rods (633), wherein the plurality of second interpenetrating rods (633) are respectively fixed at equal distances to the bottoms of the plurality of second connecting rods (631); a plurality of compression springs (634), wherein the plurality of compression springs (634) are fixed to the upper surface of the second positioning plate (632) in a rectangular array; a plurality of connecting screws (635), wherein the plurality of connecting screws (635) are fixed to the upper surface of the second positioning plate (632) in a rectangular array; A plurality of nuts (636), wherein the nuts (636) are interlaced and connected with the top threads of adjacent connecting screw rods (635).

6. A clean H-type economizer according to claim 5, characterized in that: The second insertion rod (633) is respectively fixedly inserted and connected with the middle of the fixing block (33) on one side of a plurality of adjacent longitudinal first fins (31), and the top of the compression spring (634) is fixedly connected with the lower surface of the first positioning plate (622).

7. A clean H-type economizer according to claim 5, characterized in that: The connecting screw (635) is arranged in the inner cavity of the compression spring (634), and the connecting screw (635) is slidably connected with the corner of the first positioning plate (622).

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