Three-stage series waste heat heat exchanger

Abstract

The application discloses a three-stage series waste heat exchanging device, and belongs to the field of boiler heat exchange. The device comprises a sliding strip, and the front and back surfaces of the sliding strip are fixedly connected with support rods. A heat exchanging assembly is arranged on the left side of the sliding strip. The heat exchanging assembly comprises an outer shell, and discharge ports and feeding ports are arranged on the upper and lower ends of the outer shell. Heat exchanging pipes are arranged on the inner surface of the outer shell. Water inlets and outlets are fixedly connected with the two ends of the heat exchanging pipes. The water inlets and the outlets are fixedly connected with the right side of the outer shell. The number of the heat exchanging assemblies is three. The heat exchanging assembly is arranged to exchange heat of the flue gas of the fuel oil boiler and external medium. The three heat exchanging assemblies are connected in series, and can allow the medium to pass through the three heat exchanging assemblies in sequence or allow each heat exchanging assembly to exchange heat of the medium independently. The device has the advantages of facilitating efficient heat exchange and being used according to different requirements.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of boiler heat exchange, in particular to a three-stage series waste heat heat exchange device. BACKGROUND

[0002] The fuel oil boiler refers to the boiler using fuel oil as fuel, including diesel, waste oil and other oil boilers. The fuel oil boiler includes fuel oil boiling water boiler, fuel oil hot water boiler, fuel oil heating boiler, fuel oil bathing boiler, fuel oil steam boiler, etc. The fuel oil boiler refers to the boiler using light oil (such as diesel, kerosene), heavy oil, residual oil or crude oil as fuel. Compared with the fuel gas boiler and the electric heating boiler, the fuel oil boiler is more economical than the electric heating boiler and more convenient to use than the fuel gas boiler. In the use process of the fuel oil boiler, the heat exchange device is usually used, and the tube shell heat exchanger is widely used in the boiler system, mainly used for key heat exchange processes such as boiler feed water heating, steam condensation and cooling water circulation.

[0003] The heat exchanger in the prior art usually directly introduces the medium into a single heat exchanger when exchanging heat, the heat exchange effect is weak, and it is inconvenient to increase the medium needing heat exchange according to the demand, and it is inconvenient to more efficiently exchange heat. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a three-stage series waste heat heat exchange device to solve the problems in the background art.

[0005] To achieve the above purpose, the present application provides a three-stage series waste heat heat exchange device, which comprises a sliding bar, characterized in that the sliding bar is fixedly connected with support rods on both front and back surfaces, a heat exchange assembly is arranged on the left side of the sliding bar, the heat exchange assembly comprises an outer shell, discharge and feed ports are arranged at the upper and lower ends of the outer shell respectively, heat exchange pipes are arranged on the inner surface of the outer shell, water inlets and outlets are fixedly connected with the two ends of the heat exchange pipes respectively, the water inlets and outlets are fixedly connected with the right side of the outer shell, the number of the heat exchange assemblies is three, the sliding bar and the support rods are fixedly connected with the right side of the outer shell in the middle heat exchange assembly, the number of the heat exchange pipes, the water inlets and the outlets is six, which are arranged in each heat exchange assembly in pairs, a pipeline assembly is arranged on the right side of the heat exchange assembly, a sliding assembly is arranged on the inner surface of the pipeline assembly, a pushing assembly is arranged behind the sliding assembly, a driving assembly is arranged on the left side of the sliding assembly, a cleaning assembly for cleaning the water inlets and outlets is arranged on the outer surface of the heat exchange assembly, and a filtering assembly for filtering the boiler flue gas is arranged at the bottom of the heat exchange assembly.

[0006] Preferably, the pipeline assembly comprises a first electromagnetic valve, both upper and lower ends of the first electromagnetic valve are fixedly connected with a first connecting pipe, the right side of the first connecting pipe is fixedly connected with a second electromagnetic valve, the right side of the second electromagnetic valve is fixedly connected with a first pipeline joint, the left end of the first connecting pipe is fixedly connected with a first rotary joint, the left end of the first rotary joint is fixedly connected with a first threaded joint, and the first threaded joint is matched with the water inlet and the water outlet.

[0007] Preferably, the pipeline assembly further comprises a second threaded joint matched with the water inlet and the water outlet, the right end of the second threaded joint is fixedly connected with a second rotary joint, the right end of the second rotary joint is fixedly connected with a second connecting pipe, the right end of the second connecting pipe is fixedly connected with a second pipeline joint, and the outer surfaces of the first threaded joint and the second threaded joint are fixedly connected with first gears, the first gears on two adjacent first threaded joints and second threaded joints are meshed with each other.

[0008] Preferably, the sliding assembly comprises a sliding block, the sliding block is in sliding connection with the outer surface of the sliding bar, both upper and lower surfaces of the sliding block are fixedly connected with support plates, the left side of each support plate is fixedly connected with a support seat, the support seat is in rotary connection with the outer surfaces of the first threaded joint and the second threaded joint, and the back surface of the sliding block is fixedly connected with a convex plate.

[0009] Preferably, the pushing assembly comprises a support block, the support block is fixedly connected with the back surface of the shell in the heat exchange assembly located in the middle, the right side of the support block is fixedly connected with an electric push rod, the right end of the electric push rod is fixedly connected with a pushing seat, the back surface of the pushing seat is fixedly connected with a limiting strip, and the limiting strip penetrates through and is in sliding connection with the right side of the support block.

[0010] Preferably, the driving assembly comprises an axle support, the axle support is fixedly connected with the left side of the support plate, the top of the axle support penetrates and is in rotary connection with a rotating shaft, the number of the rotating shafts is two, the outer surface of the rotating shaft is provided with a worm thread, the outer surface of the worm thread is meshed with a worm wheel, the worm wheel is fixedly connected with the outer surfaces of the first threaded joint and the second threaded joint, and the outer surface of the rotating shaft is fixedly connected with a second gear.

[0011] Preferably, the driving assembly further comprises a mounting seat, the mounting seat is fixedly connected with the left side of the support plate, the left side of the mounting seat is fixedly connected with a motor, the output end of the motor is fixedly connected with a driving shaft through a shaft coupling, and the lower end of the driving shaft is fixedly connected with a third gear, and the third gear is meshed with the second gear.

[0012] Preferably, the cleaning assembly comprises a communication pipe, a connecting rod fixedly connected between the communication pipe and the shell, a gas nozzle fixedly connected to both ends of the communication pipe, a gas chamber fixedly connected to the back of the supporting block, the number of the gas chamber is three, every two adjacent gas chambers are fixedly connected to each other, the gas chamber is connected by pipeline with the communication pipe, a piston rod is slidably connected to the inner surface of the gas chamber, a connecting plate is fixedly connected to the right end of the piston rod, and the connecting plate is fixedly connected to the back of the limiting strip.

[0013] Preferably, the filter assembly comprises a filter chamber, a connecting flange fixedly connected to the top of the filter chamber, a flue gas inlet provided at the bottom of the filter chamber, a collection box slidably connected to the inner surface of the bottom of the filter chamber, the collection box is slidably connected with the left side of the filter chamber, a filter screen is fixedly connected to the inner surface of the filter chamber, a scraping strip is slidably connected to the bottom of the filter chamber, a sliding rail is slidably connected to both ends of the scraping strip, the sliding rail is fixedly connected to the inner surface of the filter chamber, a second hydraulic chamber is fixedly connected to the top of the filter chamber, a second hydraulic rod is slidably connected to the inner surface of the second hydraulic chamber, the second hydraulic rod is fixedly connected to the right side of the scraping strip, a first hydraulic chamber is fixedly connected to the bottom of the sliding strip, the first hydraulic chamber is connected by pipeline with the second hydraulic chamber, a first hydraulic rod is slidably connected to the inner surface of the first hydraulic chamber, and the first hydraulic rod is fixedly connected to the right side of the sliding block.

[0014] The application has the advantages that:

[0015] (1) The heat exchange assembly is provided to exchange heat of the flue gas of the fuel oil boiler and external medium, the heat exchange assembly is three groups and is connected in series, can allow the medium to pass through the three groups of heat exchange assemblies in turn or allow each group of heat exchange assemblies to exchange heat of the medium alone, has the effect of facilitating efficient heat exchange, and can be used according to different needs.

[0016] (2) The cleaning assembly is provided to blow gas at the butt joint position before the pipeline assembly and the heat exchange assembly are butt jointed to clean away dust and impurities, thereby preventing the dust and impurities from affecting the tightness of the butt joint, and having the effect of facilitating to ensure the butt joint precision.

[0017] (3) The filter assembly is provided to filter the boiler flue gas entering the heat exchange assembly, and the filter assembly is also self-cleaned through the butt joint of the pipeline assembly and the heat exchange assembly, having the effect of facilitating to ensure the unobstructedness of the filter assembly. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which form a part of this application, are intended to provide further understanding of the application and are incorporated herein in their entirety. The drawings included are schematic representations of exemplary embodiments of the application, and are not limiting of the present application nor are they necessarily drawn to scale. In the drawings:

[0019] Figure 1 is a schematic view of the overall structure of the present application;

[0020] Figure 2 is a rear view of the overall structure of the present application;

[0021] Figure 3 is a schematic view of the left portion of the structure of the present application;

[0022] Figure 4 is a cross-sectional view of the left portion of the structure of the present application;

[0023] Figure 5 is a rear view of the left portion of the structure of the present application;

[0024] Figure 6 is a schematic view of the right portion of the structure of the present application;

[0025] Figure 7 is a rear view of the right portion of the structure of the present application;

[0026] Figure 8 is a schematic view of the lower portion of the structure of the present application;

[0027] Figure 9 is a cross-sectional view of the lower portion of the structure of the present application;

[0028] Figure 10 is a schematic view of the Figure 2 structure of the present application at A;

[0029] Figure 11 is a schematic view of the Figure 3 structure of the present application at B;

[0030] Figure 12 is a schematic view of the Figure 5 structure of the present application at C;

[0031] Figure 13 is a schematic view of the Figure 7 structure of the present application at D.

[0032] In the above figures:

[0033] 1, slide bar; 2, support rod; 3, heat exchange assembly; 301, shell; 302, discharge port; 303, feed port; 304, heat exchange pipe; 305, water inlet; 306, water outlet; 4, pipeline assembly; 401, first electromagnetic valve; 402, first connecting pipe; 403, second electromagnetic valve; 404, first pipeline joint; 405, first rotary joint; 406, first threaded joint; 407, second threaded joint; 408, second rotary joint; 409, second connecting pipe; 410, second pipeline joint; 411, first gear; 5, sliding assembly; 501, sliding block; 502, support plate; 503, support seat; 504, protruding plate; 6, driving assembly; 601, shaft support; 602, rotating shaft; 603, worm thread; 604, worm gear; 605, second gear; 606, mounting seat; 607, motor; 608, third gear; 7, cleaning assembly; 701, communication pipe; 702, connecting rod; 703, air jet nozzle; 704, air chamber; 705, piston rod; 706, connecting plate; 8, filtering assembly; 801, filtering chamber; 802, connecting flange; 803, flue gas inlet; 804, collection box; 805, filter screen; 806, scraping strip; 807, sliding rail; 808, second hydraulic chamber; 809, second hydraulic rod; 810, first hydraulic chamber; 811, first hydraulic rod; 9, pushing assembly; 901, support block; 902, electric push rod; 903, pushing seat; 904, limiting strip. DETAILED DESCRIPTION

[0034] In order to make the personnel in the technical field better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative labor should belong to the scope of protection of the present application.

[0035] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or a chronological sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so as to describe the embodiments of the present application. In addition, the terms "include" and "have" and their any variations, are intended to cover the non-exclusive inclusion, for example, the process, method, system, product or equipment including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or equipment.

[0036] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0037] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned partial terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0038] In addition, the terms "mount", "set", "provided with", "connected", "connected", "sleeved" should be broadly understood. For example, it can be fixedly connected, detachably connected, or integrally constructed; it can be mechanically connected or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two devices, elements or components. 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.

[0039] It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0040] Embodiment one, see Figures 1-13The embodiment provides a three-stage series waste heat exchanging device, which comprises a sliding strip 1, the top of the sliding strip 1 is provided with a track with a trapezoidal cross section, characterized in that the sliding strip 1 is fixedly connected with support rods 2 on the front and back surfaces, the number of the support rods 2 is two, the support rods 2 are L-shaped and used for supporting the support rods 2, a heat exchanging assembly 3 is arranged on the left side of the sliding strip 1, the heat exchanging assembly 3 comprises an outer shell 301, discharge ports 302 and feeding ports 303 are arranged at the upper and lower ends of the outer shell 301 respectively, the discharge ports 302 and the feeding ports 303 are all provided with flanges, heat exchanging pipes 304 are arranged on the inner surface of the outer shell 301, the heat exchanging pipes 304 are spiral-shaped, water inlets 305 and water outlets 306 are fixedly connected at the two ends of the heat exchanging pipes 304 respectively, wherein the water inlets 305 are arranged above the water outlets 306, the water inlets 305 and the water outlets 306 penetrate through and are fixedly connected with the right side of the outer shell 301, the outer surfaces of the right ends of the water inlets 305 and the water outlets 306 are provided with threads, the rotation directions of the threads between every two adjacent water inlets 305 and water outlets 306 are opposite, the number of the heat exchanging assemblies 3 is three, the three heat exchanging assemblies 3 are vertically connected in series, the discharge ports 302 and the feeding ports 303 in every two adjacent heat exchanging assemblies 3 are connected with each other through the flanges, the sliding strip 1 and the support rods 2 are fixedly connected with the right side of the outer shell 301 in the middle heat exchanging assembly 3, the number of the heat exchanging pipes 304, the water inlets 305 and the water outlets 306 is six, and the heat exchanging pipes 304, the water inlets 305 and the water outlets 306 are arranged in every heat exchanging assembly 3 in pairs, a pipeline assembly 4 is arranged on the right side of the heat exchanging assembly 3, the pipeline assembly 4 comprises a first electromagnetic valve 401, the first electromagnetic valve 401 and the auxiliary components in the pipeline assembly 4 connected with the first electromagnetic valve 401 are arranged between every two adjacent heat exchanging assemblies 3, and the first electromagnetic valve 401 is used for enabling the medium to pass through the three heat exchanging assemblies 3 in sequence, first connecting pipes 402 are fixedly connected with the upper and lower ends of the first electromagnetic valve 401, the first connecting pipes 402 are communicated between the upper and lower ends of the first electromagnetic valve 401 by opening the first electromagnetic valve 401, so that the medium can pass through the three heat exchanging assemblies 3 in sequence, the first connecting pipes 402 are L-shaped, a second electromagnetic valve 403 is fixedly connected with the right side of the first connecting pipe 402, a first pipeline joint 404 is fixedly connected with the right side of the second electromagnetic valve 403, the first pipeline joint 404 is used for connecting a pipeline to an external water inlet or water outlet end and is used for the separate use of every heat exchanging assembly 3, a first rotary joint 405 is fixedly connected with the left end of the first connecting pipe 402, a first threaded joint 406 is fixedly connected with the left end of the first rotary joint 405, the first threaded joint 406 is matched with the water inlets 305 and the water outlets 306, the pipeline assembly 4 further comprises a second threaded joint 407, the second threaded joint 407 is matched with the water inlets 305 and the water outlets 306, the first threaded joint 406 and the second threaded joint 407 are provided with internal threads and are used for being screwed on the threads on the outer surfaces of the water inlets 305 and the water outlets 306, a second rotary joint 408 is fixedly connected with the right end of the second threaded joint 407, the first rotary joint 405 and the second rotary joint 408 are specifically a kind of central rotary joint,The system ensures that the pipeline remains connected and leak-free when the first threaded joint 406 and the second threaded joint 407 rotate. A second connecting pipe 409 is fixedly connected to the right end of the second rotary joint 408, and a second pipe joint 410 is fixedly connected to the right end of the second connecting pipe 409. There are two sets of the second threaded joint 407, second rotary joint 408, second connecting pipe 409, and second pipe joint 410, with two sets in each set. These two sets of second threaded joints 407, second rotary joints 408, second connecting pipes 409, and second pipe joints 410 are respectively located at the inlet 305 of the uppermost heat exchange component 3 and the outlet 306 of the lowermost heat exchange component 3, allowing the medium to pass sequentially through the three sets of heat exchange components. The water inlet and outlet of the heat exchange component 3, and the water inlet of the uppermost heat exchange component 3 and the water outlet of the lowermost heat exchange component 3 when each heat exchange component 3 is used alone, are provided with first gears 411 fixedly connected to the outer surfaces of the first threaded joint 406 and the second threaded joint 407. The first gears 411 on two adjacent first threaded joints 406 and the second threaded joint 407 mesh with each other. The inner surface of the pipe assembly 4 is provided with a sliding assembly 5, which includes a slider 501. The slider 501 is slidably connected to the outer surface of the sliding strip 1. Support plates 502 are fixedly connected to both the upper and lower surfaces of the slider 501. The support plates 502 are T-shaped and there are two support plates 502. A support plate 502 is fixedly connected to the left side of the support plate 502. Support base 503, L-shaped, six in number, mirror-image and staggered. Support base 503 is rotatably connected to the outer surface of the first threaded joint 406 and the second threaded joint 407. Bearing is provided between the support base 503 and the outer surface of the first threaded joint 406 and the second threaded joint 407. A protruding plate 504 is fixedly connected to the back of the slider 501. A pushing assembly 9 is provided behind the sliding assembly 5. The pushing assembly 9 includes a support block 901, which is fixedly connected to the back of the outer shell 301 in the heat exchange assembly 3 located in the middle. An electric push rod 902 is fixedly connected to the right side of the support block 901. A pushing seat 903 is fixedly connected to the right end of the electric push rod 902. The sliding assembly 5 has a U-shaped component. A limiting strip 904 is fixedly connected to the back of the push base 903. The limiting strip 904 passes through and is slidably connected to the right side of the support block 901. A drive assembly 6 is provided on the left side of the sliding assembly 5. The drive assembly 6 includes a shaft support 601, which is T-shaped. The shaft support 601 is fixedly connected to the left side of the support plate 502. A rotating shaft 602 passes through and is rotatably connected to the top of the shaft support 601. A bearing is provided between the rotating shaft 602 and the shaft support 601. There are two rotating shafts 602. A worm thread 603 is provided on the outer surface of the rotating shaft 602. A worm wheel 604 meshes with the outer surface of the worm thread 603. The worm wheel 604 is fixedly connected to the outer surface of the first threaded joint 406 and the second threaded joint 407.A worm gear 604 is arranged on every two adjacent first threaded joints 406 or second threaded joints 407, only on the lower first threaded joints 406 or second threaded joints 407, and the outer surface of the rotating shaft 602 is fixedly connected with a second gear 605; the driving assembly 6 further comprises a mounting seat 606, the mounting seat 606 is fixedly connected with the left side of the supporting plate 502, a motor 607 is fixedly connected with the left side of the mounting seat 606, a driving shaft is fixedly connected with the output end of the motor 607 through a shaft coupling, a third gear 608 is fixedly connected with the lower end of the driving shaft, the third gear 608 is engaged with the second gear 605, the third gear 608 is arranged between the second gears 605 on the two rotating shafts 602, and the outer surface of the heat exchange assembly 3 is provided with a cleaning assembly 7 for cleaning the water inlets 305 and the water outlets 306, and the bottom of the heat exchange assembly 3 is provided with a filtering assembly 8 for filtering the boiler flue gas.

[0041] The above-mentioned device is used in specific, first through the located at the bottom of the shell 301 feed port 303 into the boiler flue gas, the boiler flue gas will be through the discharge port 302 into the next shell 301, finally from the located at the top of the shell 301 discharge port 302 export, by starting the electric push rod 902 makes it shrink to pull the pusher seat 903 to the left, the pusher seat 903 will drive the tab 504 so that the slider 501 on the sliding bar 1 to the left, and then drive the support plate 502 and support seat 503, so that the first threaded joint 406 and the second threaded joint 407 close and fit all the shell 301 on the water inlet 305 and the water outlet 306, at this time start the motor 607, the motor 607 will drive the third gear 608 rotation, in turn, the second gear 605 to rotate the rotating shaft 602, through the rotating shaft 602 rotation will drive the worm screw 603 so that the worm wheel 604 rotation, the worm wheel 604 will drive the first threaded joint 406 and the second threaded joint 407 rotation, in turn, the first gear 411 so that the first threaded joint 406 and the second threaded joint 407 adjacent to it rotate at the same time, through the rotation of the first threaded joint 406 and the second threaded joint 407 to connect at the water inlet 305 and the water outlet 306, at this time by opening the first electromagnetic valve 401 and closing the second electromagnetic valve 403 so that the first connection pipe 402 between the first electromagnetic valve 401 upper and lower ends of the communication, through the located at the top of the second pipe joint 410 connecting pipe to the outside of the existing heat exchange water or other medium through the second connecting pipe 409, the second rotary joint 408, the second threaded joint 407 and the water inlet 305 into the heat exchange pipe 304 in the shell 301 located at the top, so as to carry out heat exchange for the boiler flue gas, the water will flow out through the water outlet 306 of the heat exchange pipe 304, and then through the first threaded joint 406, the first rotary joint 405, the first pipe joint 404, the first connecting pipe 402 and the first electromagnetic valve 401 into the heat exchange pipe 304 in the next shell 301, and then repeat into the heat exchange pipe 304 in the shell 301 at the bottom, finally from the second pipe joint 410 at the shell 301 at the bottom, so as to pass through the heat exchange pipe 304 in the three shell 301 in turn to carry out heat exchange, so as to improve the heat exchange efficiency, when the heat exchange pipe 304 in the three shell 301 is needed to be used separately, by closing the first electromagnetic valve 401 and opening the second electromagnetic valve 403 so that the first connection pipe 402 between the first electromagnetic valve 401 upper and lower ends of the communication is cut off, at this time, the four groups of first pipe joints 404 are connected to the outside of the water outlet and the water inlet respectively, so that the heat exchange pipe 304 in the shell 301 at the middle can be in and out of water, and the heat exchange pipe 304 in the shell 301 at the top and bottom can be out of water and in water, so that the heat exchange pipe 304 in the three shell 301 can be in and out of water separately.

[0042] Embodiment two, see Figures 1-13The cleaning assembly 7 comprises three communication pipes 701, which are arranged on the three groups of heat exchange assemblies 3, and the communication pipes 701 are in U shape, and the two ends of the communication pipes 701 are respectively aligned with the water inlet 305 and the water outlet 306 in each group of heat exchange assemblies 3, and the communication pipes 701 are fixedly connected with the connecting rods 702 between the communication pipes 701 and the shell 301, and the communication pipes 701 are fixedly connected with the air nozzles 703 at the two ends, and the back of the supporting block 901 is fixedly connected with the air warehouses 704, and the number of the air warehouses 704 is three, and every two adjacent air warehouses 704 are fixedly connected with each other, and the air warehouses 704 are connected with the communication pipes 701 through pipelines, and every air warehouse 704 is connected and communicated with every communication pipe 701 through a hose, and the air warehouses 704 are slidably connected with the piston rods 705 on the inner surfaces, and the right ends of the piston rods 705 are fixedly connected with the connecting plates 706, and the connecting plates 706 are in T shape, and the connecting plates 706 are fixedly connected with the limiting strips 904 on the back.

[0043] When the electric push rod 902 pulls the push seat 903 to move leftwards in the specific use of the above equipment, the limiting strip 904 will slide leftwards in the supporting block 901, the limiting strip 904 will drive the connecting plate 706 to move leftwards, and then drive the piston rod 705 to slide leftwards in the air warehouse 704, and when the piston rod 705 slides leftwards in the air warehouse 704, it will push the gas in the air warehouse 704 to inject into the communication pipe 701 through the hose, and then sprayed from the air nozzle 703, so as to blow the gas to the water inlet 305 and the water outlet 306, and blow away the dust and impurities on the threads of the water inlet 305 and the water outlet 306, so as to ensure the precision of the threaded connection.

[0044] Embodiment three, see Figures 1-13The filter assembly 8 comprises a filter bin 801, a connecting flange 802 is fixedly connected to the top of the filter bin 801, the connecting flange 802 is matched with and connected to the flange of the feed inlet 303, a flue gas inlet 803 is arranged at the bottom of the filter bin 801, a collecting box 804 is slidably connected to the bottom of the inner surface of the filter bin 801, a handle is arranged on the collecting box 804, the collecting box 804 and the filter bin 801 are of a drawer type structure, the collecting box 804 penetrates through the left side of the filter bin 801 and is slidably connected, a filter screen 805 is fixedly connected to the inner surface of the filter bin 801, the filter screen 805 is arranged in an inclined manner, the filter screen 805 is arranged above the collecting box 804, a scraping strip 806 is slidably connected to the bottom of the filter bin 801, sliding rails 807 are slidably connected to the front and rear ends of the scraping strip 806, the sliding rails 807 are fixedly connected to the inner surface of the filter bin 801, a second hydraulic bin 808 penetrates through and is fixedly connected to the top of the filter bin 801, hydraulic oil is arranged in the second hydraulic bin 808, a second hydraulic rod 809 is slidably connected to the inner surface of the second hydraulic bin 808, the second hydraulic rod 809 is fixedly connected to the right side of the scraping strip 806, a first hydraulic bin 810 is fixedly connected to the bottom of the sliding strip 1, the first hydraulic bin 810 is connected to the second hydraulic bin 808 through a pipeline, the first hydraulic bin 810 is connected to the second hydraulic bin 808 through a hose and is in communication, a first hydraulic rod 811 is slidably connected to the inner surface of the first hydraulic bin 810, the first hydraulic rod 811 is fixedly connected to the right side of the sliding block 501.

[0045] In actual use, when the flue gas enters the feed inlet 303 of the lowermost shell 301, the flue gas first enters the filter bin 801 from the flue gas inlet 803, at this time, the filter screen 805 in the filter bin 801 filters the dust and impurities in the flue gas, preventing the dust and impurities from adhering to the heat exchange pipes 304 in the shell 301 and affecting the heat exchange efficiency, at this time, the first hydraulic rod 811 is pulled to slide leftwards in the first hydraulic bin 810 by sliding the sliding block 501 leftwards on the sliding strip 1, the first hydraulic rod 811 draws the hydraulic oil in the second hydraulic bin 808 through the hose, so that the second hydraulic rod 809 is retracted into the second hydraulic bin 808, at this time, the second hydraulic rod 809 pulls the scraping strip 806 to slide rightwards on the sliding rail 807, the scraping strip 806 scrapes the dust and impurities on the filter bin 801, so that the impurities fall into the collecting box 804 and are collected, to ensure the smoothness of the filter screen 805.

[0046] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacements or changes according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A three-stage series type waste heat exchanger device comprising a sliding strip (1), characterized in that, The sliding bar (1) is fixedly connected with support rods (2) on both sides, and the left side of the sliding bar (1) is provided with a heat exchange assembly (3); The heat exchange assembly (3) comprises an outer shell (301), the upper and lower ends of the outer shell (301) are respectively provided with discharge ports (302) and feed ports (303), the inner surface of the outer shell (301) is provided with heat exchange pipes (304), the two ends of the heat exchange pipes (304) are respectively fixedly connected with water inlets (305) and water outlets (306), the water inlets (305) and the water outlets (306) are fixedly connected with the right side of the outer shell (301), the number of the heat exchange assemblies (3) is three, the sliding bar (1) and the support rod (2) are fixedly connected with the right side of the outer shell (301) in the middle heat exchange assembly (3), the number of the heat exchange pipes (304), the water inlets (305) and the water outlets (306) is six, and each two of them are arranged in each heat exchange assembly (3); The right side of the heat exchange assembly (3) is provided with a pipeline assembly (4), the inner surface of the pipeline assembly (4) is provided with a sliding assembly (5), the rear of the sliding assembly (5) is provided with a pushing assembly (9), the left side of the sliding assembly (5) is provided with a driving assembly (6), the outer surface of the heat exchange assembly (3) is provided with a cleaning assembly (7) for cleaning the water inlets (305) and the water outlets (306), and the bottom of the heat exchange assembly (3) is provided with a filtering assembly (8) for filtering boiler flue gas; The pushing assembly (9) comprises a support block (901), the support block (901) is fixedly connected with the back of the outer shell (301) in the middle heat exchange assembly (3), the right side of the support block (901) is fixedly connected with an electric push rod (902), the right end of the electric push rod (902) is fixedly connected with a pushing seat (903), the back of the pushing seat (903) is fixedly connected with a limiting strip (904), and the limiting strip (904) penetrates through the right side of the support block (901) and is in sliding connection; The cleaning assembly (7) comprises a communication pipe (701), a connecting rod (702) is fixedly connected between the communication pipe (701) and the outer shell (301), the two ends of the communication pipe (701) are fixedly connected with air injection nozzles (703), the back of the support block (901) is fixedly connected with air warehouses (704), the number of the air warehouses (704) is three, every two adjacent air warehouses (704) are fixedly connected with each other, the air warehouses (704) are connected with the communication pipe (701) through pipelines, the inner surface of the air warehouse (704) is slidably connected with a piston rod (705), the right end of the piston rod (705) is fixedly connected with a connecting plate (706), and the connecting plate (706) is fixedly connected with the back of the limiting strip (904).

2. The three-stage, series flow, waste heat recovery heat exchanger of claim 1, wherein, The pipeline assembly (4) comprises a first electromagnetic valve (401), the first electromagnetic valve (401) is fixedly connected with a first connecting pipe (402) at both ends, the right side of the first connecting pipe (402) is fixedly connected with a second electromagnetic valve (403), the right side of the second electromagnetic valve (403) is fixedly connected with a first pipeline joint (404), the left end of the first connecting pipe (402) is fixedly connected with a first rotary joint (405), the left end of the first rotary joint (405) is fixedly connected with a first threaded joint (406), and the first threaded joint (406) is matched with the water inlet (305) and the water outlet (306).

3. A three-stage, series flow, waste heat recovery heat exchanger according to claim 2, wherein, The pipeline assembly (4) further comprises a second threaded joint (407), the second threaded joint (407) is matched with the water inlet (305) and the water outlet (306), the right end of the second threaded joint (407) is fixedly connected with a second rotary joint (408), the right end of the second rotary joint (408) is fixedly connected with a second connecting pipe (409), the right end of the second connecting pipe (409) is fixedly connected with a second pipeline joint (410), and the outer surfaces of the first threaded joint (406) and the second threaded joint (407) are fixedly connected with first gears (411), and the first gears (411) on two adjacent first threaded joints (406) and second threaded joints (407) are meshed with each other.

4. The three-stage, series flow, waste heat recovery heat exchanger of claim 3, wherein, The sliding assembly (5) comprises a sliding block (501), the sliding block (501) is slidingly connected with the outer surface of the sliding bar (1), the upper and lower surfaces of the sliding block (501) are fixedly connected with supporting plates (502), the left side of the supporting plate (502) is fixedly connected with a supporting seat (503), the supporting seat (503) is rotatably connected with the outer surfaces of the first threaded joint (406) and the second threaded joint (407), and the back of the sliding block (501) is fixedly connected with a convex plate (504).

5. A three-stage, series flow, waste heat recovery heat exchanger according to claim 4, wherein, The driving assembly (6) comprises an axle support (601), the axle support (601) is fixedly connected with the left side of the supporting plate (502), the top of the axle support (601) penetrates and is rotatably connected with rotating shafts (602), the number of the rotating shafts (602) is two, the outer surface of the rotating shaft (602) is provided with a worm thread (603), the outer surface of the worm thread (603) is meshed with a worm wheel (604), the worm wheel (604) is fixedly connected with the outer surfaces of the first threaded joint (406) and the second threaded joint (407), and the outer surface of the rotating shaft (602) is fixedly connected with a second gear (605).

6. A three-stage, series flow, waste heat recovery heat exchanger according to claim 5, wherein, The driving assembly (6) further includes a mounting seat (606) fixedly connected with the left side of the support plate (502), a motor (607) fixedly connected with the left side of the mounting seat (606), a driving shaft fixedly connected with the output end of the motor (607) through a shaft coupling, and a third gear (608) fixedly connected with the lower end of the driving shaft.

7. A three-stage, series flow, waste heat recovery heat exchanger according to claim 4, wherein, The filtering assembly (8) includes a filtering bin (801), a connecting flange (802) fixedly connected with the top of the filtering bin (801), a flue gas inlet (803) arranged at the bottom of the filtering bin (801), a collecting box (804) slidably connected with the bottom of the inner surface of the filtering bin (801), the collecting box (804) penetrating through and slidably connected with the left side of the filtering bin (801), a filter screen (805) fixedly connected with the inner surface of the filtering bin (801), a scraping strip (806) slidably connected with the bottom of the filtering bin (801), sliding rails (807) slidably connected with the front and rear ends of the scraping strip (806), the sliding rails (807) fixedly connected with the inner surface of the filtering bin (801), a second hydraulic bin (808) penetrating through and fixedly connected with the top of the filtering bin (801), a second hydraulic rod (809) slidably connected with the inner surface of the second hydraulic bin (808), the second hydraulic rod (809) fixedly connected with the right side of the scraping strip (806), a first hydraulic bin (810) fixedly connected with the bottom of the sliding strip (1), the first hydraulic bin (810) connected with the second hydraulic bin (808) through a pipeline, a first hydraulic rod (811) slidably connected with the inner surface of the first hydraulic bin (810), and the first hydraulic rod (811) fixedly connected with the right side of the sliding block (501).

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