Flue gas waste heat recovery device

Abstract

The utility model relates to the technical field of recovery devices, and discloses a flue gas waste heat recovery device which comprises a heat exchange box, a waste heat recovery device and a waste heat recovery device, a cleaning assembly is arranged in the heat exchange box. When the outer wall of the heat exchange tube is scaled and the heat exchange efficiency is influenced, a driving motor is started, a mounting base is driven to move through a lead screw, dirt on the surface of the heat exchange tube can be wiped and pushed through a cleaning sponge at the bottom of a cleaning plate, convenience and rapidness are achieved, and when the cleaning plate needs to be cleaned or replaced, only a pull ring on one side of a limiting sliding block needs to be pulled, and the cleaning efficiency is improved. Limiting of the cleaning plate can be relieved by pulling the limiting sliding block out of the connecting base, so that the cleaning plate is cleaned, when a new cleaning plate is mounted, the cleaning plate only needs to be inserted into the mounting groove and then pushed downwards, the limiting sliding block is inserted into the connecting base to limit the cleaning plate, and operation is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a recovery device technical field, concretely is a flue gas waste heat recovery device. BACKGROUND

[0002] The steel converter produces a large amount of high-temperature and high-pressure flue gas in the production process, and if the flue gas is directly discharged, a large amount of heat will be lost, thereby greatly affecting the resource utilization rate, so the flue gas needs to be connected to the waste heat recovery system.

[0003] The existing waste heat recovery system usually uses high-temperature flue gas to heat water, thereby generating continuous hot water to achieve waste heat recovery, but in actual application, since the flue gas also contains a large amount of dust and impurities, long-term use will cause the outer wall of the pipeline to scale, thereby reducing the heat exchange efficiency and greatly affecting the effect of waste heat recovery. In related technologies, such as the flue gas waste heat recovery device disclosed in CN220062665U, the scraper assembly can be raised and lowered along the heat exchange pipe through the cooperation of the air cylinder, support plate, scraper assembly, and scraper, so that the scraper can scrape the outer wall of the heat exchange pipe, thereby effectively preventing the scaling of the outer wall of the heat exchange pipe. However, during use, a large amount of dust and impurities will adhere to the surface of the scraper, thereby affecting the cleaning effect, and the scraper fixedly installed on the scraper assembly is not easy to replace or clean, causing inconvenience in use. SUMMARY

[0004] (I) Technical problems solved

[0005] In view of the deficiencies of the prior art, the utility model provides a flue gas waste heat recovery device, which has the advantages of facilitating the cleaning of the outer wall of the heat exchange pipe and facilitating the disassembly and installation of the scraper, and solves the problem that the existing flue gas waste heat recovery device is not easy to replace or clean the scraper.

[0006] (II) Technical solutions

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a flue gas waste heat recovery device, comprising: a heat exchange box having a heat exchange pipe installed inside; a cleaning assembly is arranged inside the heat exchange box; the cleaning assembly comprises: a driving motor fixedly installed on one side of the heat exchange box, and the driving motor is electrically connected with an external power supply; the output end of the driving motor is fixedly connected with a lead screw, and the outside of the lead screw is threadedly connected with a mounting seat; a cleaning plate is arranged inside the mounting seat; a connecting seat is fixedly connected to the side surface of the cleaning plate; the cleaning plate is slidably connected with the mounting recesses on both sides of the mounting seat through the connecting seat; a limiting assembly is arranged inside the mounting recess, and the cleaning plate is connected with the mounting seat through the limiting assembly.

[0008] In some embodiments, the limiting assembly comprises: a limiting slider, which is slidingly connected to the inside of the mounting seat; two sides of the limiting slider are slidingly connected with guide rods, and the outside of the guide rods is sleeved with springs; and the inside of the connecting seat is provided with a limiting slot.

[0009] In some embodiments, one end of the limiting slider extends to the outside of the mounting seat, and the extending part is provided with a spring; and the shape and size of the limiting slot are the same as those of the extending part of the limiting slider.

[0010] In some embodiments, the connecting seat and the limiting slider form a set, and each of the two sides of the cleaning plate is provided with a set, which are symmetrically arranged.

[0011] In some embodiments, the top of the mounting seat is provided with a stabilizing assembly; the stabilizing assembly comprises: a sliding seat, which is fixedly connected to the two ends of the top of the mounting seat, and the inside of the sliding seat is provided with a through slot; the inside of the sliding seat is slidingly connected with a stabilizing slide rod which is fixedly connected with the heat exchange box, and the diameter of the through slot in the inside of the sliding seat is the same as that of the stabilizing slide rod.

[0012] In some embodiments, the bottom of the cleaning plate is fixedly connected with a cleaning sponge, and the bottom of the mounting seat is provided with an ash collecting groove.

[0013] In some embodiments, the distance between the heat exchange pipes in the vertical direction is greater than the height of the cleaning plate.

[0014] In some embodiments, the cleaning plate, the mounting groove and the limiting assembly form a set, and each layer of the heat exchange pipes is provided with a set.

[0015] (Three) beneficial effects

[0016] Compared with the prior art, the present application provides a flue gas waste heat recovery device, which has the following beneficial effects:

[0017] When the outer wall of the heat exchange pipe is scaled and the heat exchange efficiency is affected, only the driving motor needs to be started to move the mounting seat driven by the screw rod, so that the dirt on the surface of the heat exchange pipe can be wiped and pushed by the cleaning sponge at the bottom of the cleaning plate, which is convenient and fast. When it is necessary to clean or replace the cleaning plate, only the pull ring on one side of the limiting slider needs to be pulled to pull the limiting slider out of the inside of the connecting seat, so that the limiting of the cleaning plate is released, thereby cleaning the cleaning plate. When a new cleaning plate is installed, only the cleaning plate needs to be inserted into the mounting groove and then pushed down, and the cleaning plate is limited by the limiting slider inserted into the connecting seat, which is convenient to operate. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the present application.

[0019] Figure 2 It is the internal structure schematic view of the heat exchange box of the utility model;

[0020] Figure 3 It is the structure schematic view of the mounting seat of the utility model;

[0021] Figure 4 It is the structure schematic view of the cleaning assembly of the utility model;

[0022] Figure 5 It is the structure schematic view of the limiting sliding block of the utility model.

[0023] In the drawing:

[0024] 11, heat exchange box; 12, heat exchange pipe;

[0025] 2, cleaning assembly; 21, driving motor; 22, mounting seat; 23, cleaning plate; 24, connecting seat; 25, mounting groove; 26, limiting assembly; 261, limiting sliding block; 262, guide rod; 263, limiting groove;

[0026] 3, stabilizing assembly; 31, sliding seat; 32, stabilizing sliding rod;

[0027] 41, cleaning sponge; 42, ash collecting groove. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work under the premise that the embodiments in the present application are within the scope of protection of the present application.

[0029] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative positional relationship, movement condition and the like between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0030] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] In addition, the description such as "first", "second" and the like in the present application is only for the purpose of description and cannot be understood as indicating or implying the relative importance of the technical features indicated or implying the number of technical features indicated. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the present application.

[0032] In use, the high-temperature flue gas is introduced through the guide opening on one side of the heat exchange box, and the water for heat exchange is introduced into the heat exchange pipe through the water inlet of the heat exchange pipe. Heat exchange is realized through heat exchange between water and flue gas. After heat exchange, the water for heat exchange is transported to other places through the water outlet of the heat exchange pipe, thereby increasing the utilization rate of resources.

[0033] In the related art, such as the flue gas waste heat recovery device disclosed in CN220062665U, through the cooperation of the cylinder, the supporting plate, the scraper assembly and the scraper, the scraper assembly can be lifted up and down along the heat exchange pipe, so that the scraper can scrape the outer wall of the heat exchange pipe, and the dust and impurities attached to the outer wall of the heat exchange pipe can be scraped off, thereby effectively preventing the outer wall of the heat exchange pipe from being scaled. However, during use, a large amount of dust and impurities will be attached to the surface of the scraper, thereby affecting the cleaning effect. The scraper fixedly installed on the scraper assembly is not easy to replace or clean, causing inconvenience in use.

[0034] In order to solve the problems in the related art to some extent, the present application provides a flue gas waste heat recovery device. When the outer wall of the heat exchange pipe 12 is scaled and affects the heat exchange efficiency, only the driving motor 21 needs to be started, and the cleaning sponge 41 at the bottom of the cleaning plate 23 can be used to wipe and push the dirt on the surface of the heat exchange pipe 12 by moving the mounting seat 22 through the lead screw. It is convenient and fast. When the cleaning plate 23 needs to be cleaned or replaced, only the pull ring on one side of the limiting slide block 261 needs to be pulled, and the limiting slide block 261 is pulled out from the inside of the connecting seat 24, so that the limiting of the cleaning plate 23 is released, and the cleaning plate 23 is cleaned. When a new cleaning plate 23 is installed, only the cleaning plate 23 needs to be inserted into the installation groove 25 and then pushed down. The cleaning plate 23 is limited by the limiting slide block 261 inserted into the connecting seat 24, which is convenient to operate.

[0035] The present application will be described below in conjunction with the drawings and specific embodiments:

[0036] In combination Figures 1-5The embodiment of the application provides a flue gas waste heat recovery device, which comprises a heat exchange box 11, a heat exchange pipe 12 is arranged in the heat exchange box 11, a cleaning assembly 2 is arranged in the heat exchange box 11, the cleaning assembly 2 comprises a driving motor 21, the driving motor 21 is fixedly installed on one side of the heat exchange box 11, and the driving motor 21 is electrically connected with an external power supply, a lead screw is fixedly connected to the output end of the driving motor 21, an installation seat 22 is threadedly connected to the lead screw, a cleaning plate 23 is arranged in the installation seat 22, a connecting seat 24 is fixedly connected to the side of the cleaning plate 23, the cleaning plate 23 is slidably connected to the installation grooves 25 on the two sides of the installation seat 22 through the connecting seat 24, and a limiting assembly 26 is arranged in the installation groove 25 and the cleaning plate 23 is connected with the installation seat 22 through the limiting assembly 26.

[0037] In use, high-temperature flue gas is introduced through the flow guide opening on one side of the heat exchange box 11, water for heat exchange is introduced into the heat exchange pipe 12 through the water inlet of the heat exchange pipe 12, heat exchange is realized through heat exchange between the water and the flue gas, after heat exchange, the water for heat exchange is transported to other places through the water outlet of the heat exchange pipe 12, the utilization rate of resources is increased, when the outer wall of the heat exchange pipe 12 is scaled and the heat exchange efficiency is affected, the driving motor 21 is started, the installation seat 22 is driven to move through the rotation of the lead screw and the threaded connection, at this time, the cleaning sponge 41 at the bottom of the cleaning plate 23 rubs the upper surface and the side surface of the heat exchange pipe 12, the dirt on the surface of the heat exchange pipe 12 is wiped and pushed through the cleaning sponge 41, and falls into the bottom of the heat exchange box 11, in the movement process of the installation seat 22, the fallen dirt is concentrated in the interior of the ash collecting groove 42, the influence of the dirt on the movement of the installation seat 22 is reduced, and meanwhile, the dirt is conveniently concentrated and treated, when it is necessary to clean or replace the cleaning plate 23, a pull ring on one side of the limiting slide block 261 is pulled, the limiting slide block 261 is pulled out from the interior of the connecting seat 24, the limiting of the cleaning plate 23 is released, and then the cleaning plate 23 is cleaned, when a new cleaning plate 23 is installed, the connecting seats 24 on the two sides of the cleaning plate 23 are inserted into the installation grooves 25 and then are pushed downward, the connecting seat 24 first compresses and pushes the limiting slide block 261, and meanwhile, the spring outside the guide rod 262 is compressed, when the limiting groove 263 reaches the position of the limiting slide block 261, the limiting groove 263 is pushed into the interior of the limiting groove 263 under the action of the spring, and then the limiting of the cleaning plate 23 and the connecting seat 24 is realized, and the operation is facilitated.

[0038] In some embodiments, the limiting assembly 26 comprises a limiting slide block 261 which is slidably connected to the interior of the installation seat 22, guide rods 262 are slidably connected to the two sides of the limiting slide block 261, and springs are arranged outside the guide rods 262, and the interior of the connecting seat 24 is provided with a limiting groove 263, and the connecting seat 24 is limited.

[0039] In some embodiments, one end of the limiting sliding block 261 extends to the outside of the mounting seat 22, the protruding part is provided with a spring, and the shape and size of the limiting groove 263 are the same as those of the protruding part of the limiting sliding block 261, so that when the connecting seat 24 is pushed downward, the limiting sliding block 261 can be pushed by pressing the inclined surface at one end of the limiting sliding block 261, thereby preventing the limiting sliding block 261 from blocking the sliding of the connecting seat 24 in the mounting groove 25.

[0040] In some embodiments, the connecting seat 24 and the limiting sliding block 261 form a group, and one group is arranged on each side of the cleaning plate 23, and the groups are symmetrically arranged to enhance the stability of the limiting.

[0041] In some embodiments, the top of the mounting seat 22 is provided with a stabilizing assembly 3; the stabilizing assembly 3 comprises: sliding seats 31 fixedly connected to both ends of the top of the mounting seat 22, and a through groove is formed in the inside of the sliding seat 31; a stabilizing sliding rod 32 fixedly connected with the heat exchange box 11 is slidably connected in the inside of the sliding seat 31, and the diameter of the through groove in the inside of the sliding seat 31 is the same as that of the stabilizing sliding rod 32, thereby enhancing the stability of the sliding of the mounting seat 22 in the heat exchange box 11.

[0042] In some embodiments, the bottom of the cleaning plate 23 is fixedly connected with a cleaning sponge 41, and a dust collecting groove 42 is formed in the bottom of the mounting seat 22, so that the surface of the heat exchange pipe 12 can be cleaned by the cleaning sponge 41, and the influence of the falling dirt on the sliding of the mounting seat 22 can be reduced by the dust collecting groove 42.

[0043] In some embodiments, the vertical distance between the heat exchange pipes 12 is greater than the height of the cleaning plate 23, so that the cleaning plate 23 can be easily taken out.

[0044] In some embodiments, the cleaning plate 23, the mounting groove 25 and the limiting assembly 26 form a group, and one group is arranged on each layer of the heat exchange pipes 12, thereby enhancing the cleaning effect.

[0045] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present specification.

[0046] In addition, the technical solutions among various embodiments can be combined with each other, but it must be based on that a person skilled in the art can realize, when the combination of the technical solutions appears contradictory or cannot be realized, it should be considered that the combination of the technical solutions does not exist, and is not within the protection scope required by the present application.

[0047] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A flue gas heat recovery device, characterized by, include: A heat exchange box (11) is provided inside, with heat exchange tubes (12) installed therein; a cleaning assembly (2) is provided inside the heat exchange box (11); the cleaning assembly (2) includes: A drive motor (21) is fixedly installed on one side of the heat exchange box (11) and is electrically connected to an external power source. A lead screw is fixedly connected to the output end of the drive motor (21), and a mounting base (22) is connected to the external thread of the lead screw. A cleaning plate (23) is provided inside the mounting base (22). A connecting seat (24) is fixedly connected to the side of the cleaning plate (23). The cleaning plate (23) is slidably connected to the mounting grooves (25) on both sides of the mounting base (22) through the connecting seat (24). A limiting component (26) is provided inside the mounting groove (25), and the cleaning plate (23) is connected to the mounting base (22) through the limiting component (26).

2. A flue gas waste heat recovery device according to claim 1, characterized in that The limiting component (26) includes: A limiting slider (261) is slidably connected to the inside of the mounting base (22); guide rods (262) are slidably connected to both sides of the limiting slider (261), and springs are sleeved on the outside of the guide rods (262); a limiting groove (263) is opened inside the connecting base (24).

3. A flue gas heat recovery device according to claim 2, characterised in that: One end of the limiting slider (261) extends to the outside of the mounting base (22), the protruding part is provided with a spring, and the shape and size of the limiting groove (263) are the same as the protruding part of the limiting slider (261).

4. A flue gas heat recovery device according to claim 2, characterised in that: The connecting seat (24) and the limiting slider (261) are a set, and a set is provided on each side of the cleaning plate (23), and they are arranged symmetrically.

5. A flue gas waste heat recovery device according to claim 1, characterized in that, A stabilizing component (3) is provided on the top of the mounting base (22); the stabilizing component (3) includes: A sliding seat (31) is fixedly connected to both ends of the top of the mounting base (22), and a through groove is opened inside the sliding seat (31); a stabilizing slide rod (32) that is fixedly connected to the heat exchange box (11) is slidably connected inside the sliding seat (31), and the diameter of the through groove inside the sliding seat (31) is the same as the diameter of the stabilizing slide rod (32).

6. A flue gas heat recovery device according to claim 1, characterized in that: The bottom of the cleaning plate (23) is fixedly connected to a cleaning sponge (41), and the bottom of the mounting base (22) has a dust collection groove (42).

7. A flue gas heat recovery device according to claim 1, characterized in that: The vertical spacing of the heat exchange tubes (12) is greater than the height of the cleaning plate (23).

8. A flue gas heat recovery device according to claim 1, characterized in that: The cleaning plate (23), the mounting groove (25) and the limiting component (26) are a set, and each layer of the heat exchange tube (12) is provided with a set.

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