Economizer convenient to clean

Abstract

The invention belongs to the technical field of coal economizers, and discloses a coal economizer convenient to clean, which comprises a box body, and a plurality of rows of steel pipes are fixedly connected in the box body; the mounting plate is fixedly connected to one side of the box body, a first air cylinder is fixedly connected to the mounting plate, a first connecting frame is fixedly connected to the output end of the first air cylinder, a plurality of first connecting plates are fixedly connected to the first connecting frame, the first connecting plates correspond to the multiple rows of steel pipes one to one, and the first connecting plates and the steel pipes are arranged in parallel; the first connecting plate is fixedly connected with a plurality of second connecting plates, the second connecting plates are perpendicular to the steel pipes, the second connecting plates are provided with a plurality of scraping ring mechanisms, and the scraping ring mechanisms on the second connecting plates are in one-to-one correspondence with a plurality of steel pipes in each row of steel pipes. The economizer keeps good heat exchange efficiency, and time and labor are saved.

Description

Technical Field

[0001] The invention belongs to the technical field of economizers, and in particular relates to an economizer that is easy to clean. Background Art

[0002] Economizer is a device installed at the lower part of the flue at the tail end of the boiler to recover the waste heat of the exhaust gas. Because it absorbs the heat of high-temperature flue gas, reduces the exhaust temperature of the flue gas, saves energy and improves efficiency, it is called an economizer. Economizer is mainly suitable for industry.

[0003] The working environment of the economizer is within the flue gas. When it is in contact with the flue gas for a long time, a thick impurity layer is easily attached to the surface of the economizer heat exchange steel pipe due to the large amount of particulate impurities in the flue gas, resulting in a decrease in heat exchange efficiency. The existing method of cleaning the steel pipe of the economizer is usually to disassemble the whole and scrape off the impurities on the steel pipe. The disassembly and assembly of the economizer requires the use of more bolts, which is time-consuming and inefficient. Summary of the invention

[0004] In order to solve the above technical problems, the present invention proposes an economizer that is easy to clean, aiming to solve or improve at least one of the above technical problems.

[0005] To achieve the above object, the present invention provides an economizer that is easy to clean, comprising:

[0006] A box body, wherein a plurality of rows of steel pipes are fixedly connected to the box body;

[0007] A mounting plate, the mounting plate is fixedly connected to one side of the box body, a first cylinder is fixedly connected to the mounting plate, a first connecting frame is fixedly connected to the output end of the first cylinder, a plurality of first connecting plates are fixedly connected to the first connecting frame, the plurality of first connecting plates correspond one-to-one to the plurality of columns of steel pipes, and the first connecting plates are arranged parallel to the steel pipes, a plurality of second connecting plates are fixedly connected to the first connecting plate, the second connecting plates are arranged perpendicularly to the steel pipes, a plurality of scraping ring mechanisms are arranged on the second connecting plate, and the plurality of scraping ring mechanisms on the second connecting plate correspond one-to-one to the plurality of steel pipes in each column of the steel pipes.

[0008] Optionally, the scraper ring mechanism includes two half rings that form a circle, and a semicircular scraper is provided on the inner arc surface of the half ring. The scraper is used to contact the surface of the steel pipe. One end of the two half rings close to the second connecting plate is connected to an opening and closing component, and the opening and closing component is provided on the second connecting plate.

[0009] Optionally, the opening and closing assembly includes a groove, which is provided on the second connecting plate, in which a first guide rod is fixedly connected, the first guide rod is vertically arranged to the steel pipe, two opening and closing plates are slidably sleeved on the first guide rod, the two opening and closing plates are respectively fixedly connected to the two half rings one by one, a driving plate is provided between the two opening and closing plates, a first connecting rod is hinged between the driving plate and the opening and closing plates, and the multiple driving plates in the second connecting plate are driven by an adjusting assembly.

[0010] Optionally, the adjustment assembly includes a second guide rod, which is slidably connected to the second connecting plate and passes through the plurality of grooves. A plurality of second connecting rods are hinged on the second guide rod, and the plurality of second connecting rods correspond to and are hinged to the plurality of driving plates one by one. A polygonal third guide rod is fixedly connected to the bottom end of the second guide rod, and a polygonal guide groove is provided on the bottom surface of the groove at the bottom. The third guide rod is slidably connected to the guide groove, and the top end of the second guide rod extends to the top surface of the second connecting plate and is provided with a threaded section. The threaded section is threadedly sleeved with a threaded sleeve, and the threaded sleeve is rotatably connected to the second connecting plate.

[0011] Optionally, a gear is fixedly sleeved on the threaded sleeve, a push rod is provided on one side of the first connecting plate, a plurality of racks are fixedly connected to the push rod, the plurality of racks on the push rod correspond one-to-one with and are meshed with a plurality of gears in a corresponding row, and a plurality of push rods are fixedly connected to a second connecting frame, the second connecting frame is slidably connected to the first connecting frame, a second cylinder is fixedly connected to the first connecting frame, and an output shaft of the second cylinder is fixedly connected to the second connecting frame.

[0012] Optionally, the second connecting frame is fixedly connected to two ends of the second connecting frame, and the first connecting frame is provided with two second sliding grooves corresponding to the two second sliding grooves one by one. The second sliding grooves are slidably matched with the second sliding grooves, and the second sliding grooves and the second sliding grooves are both dovetail structures.

[0013] Optionally, first sliders are fixedly connected to both ends of the first connecting frame, and two first sliding grooves corresponding to the two first sliding grooves are opened on the mounting plate. The first sliding grooves are slidably matched with the first sliding grooves, and the first sliding grooves and the first sliding grooves are both dovetail structures.

[0014] Optionally, a third slider is fixedly connected to one end of the driving plate away from the second connecting rod, and the third slider is slidably connected to a third slide groove, the third slide groove is arranged on the side wall of the groove, and the third slider and the third slide groove are both dovetail structures.

[0015] Optionally, a plurality of guide holes are provided on the semi-ring, a fourth guide rod is slidably fitted in the guide hole, one end of the fourth guide rod is fixedly connected to the scraper, a spring is provided on the outer sleeve of the fourth guide rod, and the spring is fixedly connected between the scraper and the semi-ring.

[0016] Optionally, a water conduit is formed between the multiple steel pipes through a water inlet pipe, a drain pipe and multiple connecting pipes.

[0017] Compared with the prior art, the present invention has the following advantages and technical effects:

[0018] By setting up a scraper ring mechanism, when the steel pipe in the box needs to be cleaned, the first connecting frame is pushed by the first cylinder, so that the first connecting frame drives multiple first connecting plates and multiple second connecting plates to move synchronously, thereby driving the scraper ring mechanism to move on the surface of the steel pipe, thereby effectively scraping off impurities attached to the surface of the steel pipe. The surface of the steel pipe can be cleaned without disassembling the economizer as a whole, so that the economizer maintains good heat exchange efficiency, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 for Figure 1 A partial enlarged view of middle A;

[0022] Figure 3 for Figure 1 A partial enlarged view of B in the middle;

[0023] Figure 4 This is a schematic diagram of the connection structure between the half ring and the scraper of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the opening and closing assembly of the present invention;

[0025] Figure 6 It is a schematic diagram of the groove structure of the present invention.

[0026] In the figure: 1, box body; 2, steel pipe; 3, mounting plate; 4, first cylinder; 5, first connecting frame; 6, first connecting plate; 7, second connecting plate; 8, half ring; 9, scraper; 10, groove; 11, first guide rod; 12, opening and closing plate; 13, driving plate; 14, first connecting rod; 15, second guide rod; 16, second connecting rod; 17, third guide rod; 18, guide groove; 19, threaded section; 20, threaded sleeve; 21, gear; 22, push rod; 23, rack; 24, second connecting frame; 25, second cylinder; 26, second slider; 27, second slide groove; 28, first slider; 29, first slide groove; 30, third slider; 31, third slide groove; 32, fourth guide rod; 33, spring; 34, water inlet pipe; 35, drain pipe; 36, connecting pipe. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Reference Figure 1-Figure 6 As shown, this embodiment provides an economizer that is easy to clean, including:

[0030] A box body 1, wherein a plurality of rows of steel pipes 2 are fixedly connected in the box body 1;

[0031] A mounting plate 3 is fixedly connected to one side of the box body 1. A first cylinder 4 is fixedly connected to the mounting plate 3. A first connecting frame 5 is fixedly connected to the output end of the first cylinder 4. A plurality of first connecting plates 6 are fixedly connected to the first connecting frame 5. The plurality of first connecting plates 6 correspond one-to-one to the plurality of rows of steel pipes 2, and the first connecting plates 6 are arranged parallel to the steel pipes 2. A plurality of second connecting plates 7 are fixedly connected to the first connecting plate 6. The second connecting plates 7 are arranged perpendicular to the steel pipes 2. A plurality of scraping ring mechanisms are arranged on the second connecting plate 7. The plurality of scraping ring mechanisms on the second connecting plate 7 correspond one-to-one to the plurality of steel pipes 2 in each row of steel pipes 2.

[0032] By setting up a scraper ring mechanism, when the steel pipe 2 in the box body 1 needs to be cleaned, the first connecting frame 5 is pushed by the first cylinder 4, so that the first connecting frame 5 drives multiple first connecting plates 6 and multiple second connecting plates 7 to move synchronously, thereby driving the scraper ring mechanism to move on the surface of the steel pipe 2, thereby effectively scraping off impurities attached to the surface of the steel pipe 2. The surface of the steel pipe 2 can be cleaned without disassembling the economizer as a whole, so that the economizer maintains a good heat exchange efficiency, saving time and effort.

[0033] A further optimized solution is that the scraper ring mechanism includes two half rings 8 that form a circle, and a semicircular scraper 9 is provided on the inner arc surface of the half ring 8. The scraper 9 is used to contact the surface of the steel pipe 2. One end of the two half rings 8 close to the second connecting plate 7 is connected with an opening and closing component, and the opening and closing component is provided on the second connecting plate 7.

[0034] In order to prevent the scraper ring mechanism from always being in contact with the steel pipe 2 and affecting the contact area between the steel pipe 2 and the flue gas, the scraper 9 and the half ring 8 are set to a detachable structure, which is controlled by the opening and closing components so that the scraper 9 is separated from the steel pipe 2 when there is no need to clean the steel pipe 2, so that the steel pipe 2 maintains a sufficient heat exchange contact area.

[0035] A further optimized solution is that the opening and closing assembly includes a groove 10, which is opened on the second connecting plate 7, and a first guide rod 11 is fixedly connected to the groove 10. The first guide rod 11 is vertically arranged to the steel pipe 2, and two opening and closing plates 12 are slidably sleeved on the first guide rod 11. The two opening and closing plates 12 are respectively fixedly connected to the two half rings 8 one by one, and a driving plate 13 is arranged between the two opening and closing plates 12. A first connecting rod 14 is hinged between the driving plate 13 and the opening and closing plate 12, and the multiple driving plates 13 in the second connecting plate 7 are driven by the adjusting assembly.

[0036] The driving plate 13 is driven to move by the driving assembly, so that the two opening and closing plates 12 can be driven to move by the first connecting rod 14, and the first guide rod 11 limits the moving direction of the two opening and closing plates 12, so that the two opening and closing plates 12 can move relative to or away from each other, thereby driving the two half rings 8 to move synchronously and controlling the contact or separation state of the scraper 9 and the steel pipe 2.

[0037] A further optimized solution is that the adjustment component includes a second guide rod 15, which is slidably connected to the second connecting plate 7, and the second guide rod 15 passes through multiple grooves 10, and multiple second connecting rods 16 are hinged on the second guide rod 15, and the multiple second connecting rods 16 correspond one by one to the multiple driving plates 13 and are hinged, and a polygonal third guide rod 17 is fixed to the bottom end of the second guide rod 15, and a polygonal guide groove 18 is provided on the bottom surface of the groove 10 located at the bottom, and the third guide rod 17 is slidably connected to the guide groove 18, and the top end of the second guide rod 15 extends to the top surface of the second connecting plate 7 and is provided with a threaded section 19, and the threaded section 19 is threadedly sleeved with a threaded sleeve 20, and the threaded sleeve 20 is rotatably connected to the second connecting plate 7.

[0038] By rotating the threaded sleeve 20, the third guide rod 17 and the guide groove 18 limit the second guide rod 15 to prevent the second guide rod 15 from rotating. The second guide rod 15 moves through the threaded cooperation between the threaded sleeve 20 and the threaded section 19, and the second connecting rod 16 drives the drive plate 13 to move.

[0039] A further optimized solution is that a gear 21 is fixedly sleeved on the threaded sleeve 20, a push rod 22 is provided on one side of the first connecting plate 6, a plurality of racks 23 are fixedly connected to the push rod 22, the plurality of racks 23 on the push rod 22 correspond one to one with and are meshedly connected to the plurality of gears 21 in the corresponding row, and the plurality of push rods 22 are fixedly connected to a second connecting frame 24, the second connecting frame 24 is slidably connected to the first connecting frame 5, and a second cylinder 25 is fixedly connected to the first connecting frame 5, and the output shaft of the second cylinder 25 is fixedly connected to the second connecting frame 24.

[0040] The second connecting frame 24 is pushed to move by the second cylinder 25, thereby driving the multiple push rods 22 to move synchronously, and then the rack 23 cooperates with the gear 21 to make the multiple threaded sleeves 20 rotate synchronously.

[0041] To further optimize the solution, second sliders 26 are fixedly connected to both ends of the second connecting frame 24, and two second slide grooves 27 corresponding to the two second sliders 26 are opened on the first connecting frame 5. The second sliders 26 and the second slide grooves 27 are slidably matched, and the second sliders 26 and the second slide grooves 27 are both dovetail structures.

[0042] The sliding stability of the second connecting frame 24 can be improved by providing the second sliding block 26 and the second sliding groove 27 .

[0043] To further optimize the solution, first sliders 28 are fixedly connected to both ends of the first connecting frame 5, and two first slide grooves 29 corresponding to the two first sliders 28 are opened on the mounting plate 3. The first sliders 28 and the first slide grooves 29 are slidably matched, and the first sliders 28 and the first slide grooves 29 are both dovetail structures.

[0044] The sliding stability of the first connecting frame 5 can be improved by providing the first sliding block 28 and the first sliding groove 29 .

[0045] According to a further optimization scheme, a third slider 30 is fixedly connected to one end of the driving plate 13 away from the second connecting rod 16. The third slider 30 is slidably connected to a third slide groove 31. The third slide groove 31 is provided on the side wall of the groove 10, and both the third slider 30 and the third slide groove 31 are dovetail structures.

[0046] The sliding stability of the driving plate 13 can be improved by providing the third sliding block 30 and the third sliding groove 31 .

[0047] To further optimize the solution, a plurality of guide holes are opened on the half ring 8, a fourth guide rod 32 is slidably fitted in the guide hole, one end of the fourth guide rod 32 is fixedly connected to the scraper 9, a spring 33 is provided on the outer sleeve of the fourth guide rod 32, and the spring 33 is fixedly connected between the scraper 9 and the half ring 8.

[0048] By providing the fourth guide rod 32 and the spring 33, the scraper 9 can be effectively brought into contact with the surface of the steel pipe 2, thereby improving the scraping effect.

[0049] To further optimize the solution, a water conduit is formed between the multiple steel pipes 2 through a water inlet pipe 34, a drain pipe 35 and multiple connecting pipes 36, so that the water can flow.

[0050] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0051] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. An economizer that is easy to clean, characterized in that: include: A box body (1), wherein a plurality of rows of steel pipes (2) are fixedly connected inside the box body (1); A mounting plate (3), the mounting plate (3) being fixedly connected to one side of the box body (1), a first cylinder (4) being fixedly connected to the mounting plate (3), an output end of the first cylinder (4) being fixedly connected to a first connecting frame (5), a plurality of first connecting plates (6) being fixedly connected to the first connecting frame (5), the plurality of first connecting plates (6) corresponding one-to-one to a plurality of rows of steel pipes (2), and the first connecting plates (6) being arranged parallel to the steel pipes (2), a plurality of second connecting plates (7) being fixedly connected to the first connecting plate (6), the second connecting plates (7) being arranged perpendicularly to the steel pipes (2), a plurality of scraping ring mechanisms being arranged on the second connecting plate (7), the plurality of scraping ring mechanisms on the second connecting plate (7) corresponding one-to-one to a plurality of steel pipes (2) in each row of the steel pipes (2).

2. The economizer that is easy to clean according to claim 1, characterized in that: The scraper ring mechanism comprises two half rings (8) which are combined to form a circle, and a semicircular scraper (9) is arranged on the inner arc surface of the half ring (8), and the scraper (9) is used to contact the surface of the steel pipe (2), and one end of the two half rings (8) close to the second connecting plate (7) is connected to an opening and closing component, and the opening and closing component is arranged on the second connecting plate (7).

3. The economizer that is easy to clean according to claim 2, characterized in that: The opening and closing assembly comprises a groove (10), wherein the groove (10) is provided on the second connecting plate (7), a first guide rod (11) is fixedly connected in the groove (10), the first guide rod (11) is vertically arranged with the steel pipe (2), two opening and closing plates (12) are slidably sleeved on the first guide rod (11), the two opening and closing plates (12) are respectively fixedly connected to the two half rings (8) one by one, a driving plate (13) is provided between the two opening and closing plates (12), a first connecting rod (14) is hinged between the driving plate (13) and the opening and closing plates (12), and the plurality of driving plates (13) in the second connecting plate (7) are driven by the adjusting assembly.

4. The economizer that is easy to clean according to claim 3, characterized in that: The adjustment assembly comprises a second guide rod (15), the second guide rod (15) is slidably connected to the second connecting plate (7), and the second guide rod (15) passes through the plurality of grooves (10), a plurality of second connecting rods (16) are hingedly connected to the second guide rod (15), and the plurality of second connecting rods (16) correspond to and are hingedly connected to the plurality of driving plates (13) one by one, a polygonal third guide rod (17) is fixedly connected to the bottom end of the second guide rod (15), a polygonal guide groove (18) is provided on the bottom surface of the groove (10) at the bottom, the third guide rod (17) is slidably connected to the guide groove (18), the top end of the second guide rod (15) extends to the top surface of the second connecting plate (7) and is provided with a threaded section (19), the threaded section (19) is threadedly sleeved with a threaded sleeve (20), and the threaded sleeve (20) is rotatably connected to the second connecting plate (7).

5. The economizer that is easy to clean according to claim 4, characterized in that: A gear (21) is fixedly sleeved on the threaded sleeve (20), a push rod (22) is provided on one side of the first connecting plate (6), a plurality of racks (23) are fixedly connected to the push rod (22), the plurality of racks (23) on the push rod (22) correspond one to one with the plurality of gears (21) in the corresponding row and are meshedly connected, and a plurality of push rods (22) are fixedly connected to a second connecting frame (24), the second connecting frame (24) is slidably connected to the first connecting frame (5), a second cylinder (25) is fixedly connected to the first connecting frame (5), and an output shaft of the second cylinder (25) is fixedly connected to the second connecting frame (24).

6. The economizer that is easy to clean according to claim 5, characterized in that: The second connecting frame (24) is respectively fixedly connected with a second sliding block (26) at both ends, and the first connecting frame (5) is provided with two second sliding grooves (27) corresponding to the two second sliding blocks (26) one by one, and the second sliding blocks (26) and the second sliding grooves (27) are slidably matched, and the second sliding blocks (26) and the second sliding grooves (27) are both dovetail structures.

7. The economizer that is easy to clean according to claim 1, characterized in that: The first connecting frame (5) is respectively fixedly connected with a first sliding block (28) at both ends, and the mounting plate (3) is provided with two first sliding grooves (29) corresponding to the two first sliding blocks (28) one by one, and the first sliding blocks (28) and the first sliding grooves (29) are slidably matched, and the first sliding blocks (28) and the first sliding grooves (29) are both dovetail structures.

8. The economizer that is easy to clean according to claim 4, characterized in that: A third slider (30) is fixedly connected to one end of the driving plate (13) away from the second connecting rod (16); the third slider (30) is slidably connected to a third slide groove (31); the third slide groove (31) is arranged on the side wall of the groove (10); and the third slider (30) and the third slide groove (31) are both dovetail structures.

9. The economizer that is easy to clean according to claim 2, characterized in that: The semi-ring (8) is provided with a plurality of guide holes, in which a fourth guide rod (32) is slidably fitted, one end of the fourth guide rod (32) is fixedly connected to the scraper (9), and a spring (33) is provided on the outer sleeve of the fourth guide rod (32), and the spring (33) is fixedly connected between the scraper (9) and the semi-ring (8).

10. The economizer that is easy to clean according to claim 1, characterized in that: A water conduit is formed between the plurality of steel pipes (2) through a water inlet pipe (34), a water discharge pipe (35) and a plurality of connecting pipes (36).

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