Energy-saving and environment-friendly flue gas waste heat recovery boiler

Abstract

The utility model relates to the related technical field of single crystal furnaces, in particular to an energy-saving and environment-friendly flue gas waste heat recovery boiler which comprises a base and a boiler body, the boiler body is mounted at the top of the base, and the top of the boiler body is communicated with a gas outlet pipe; the connecting pipe is communicated with one end of the air outlet pipe, a frame body is installed in the connecting pipe, and a filter screen used for filtering smoke, dust and particulate matter is fixed to the inner wall of the frame body. The frame body and the filter screen are detached, the filter screen can be conveniently detached and replaced subsequently, the problem that the filter screen is deformed and is inconvenient to replace due to long-time use is avoided, and a connecting block rotating rod can enable bristles to be inserted into filter holes of the filter screen, dredge the filter holes and clean blockages in the filter holes.

Description

TECHNICAL FIELD

[0001] The utility model relates to single crystal furnace related technical field especially, it is a kind of energy -conserving and environment -friendly flue gas waste heat recovery boiler. BACKGROUND

[0002] The boiler is a kind of equipment that converts fuel chemical energy into heat energy, which produces steam or hot water by heating boiler water through burning fuel (such as coal, natural gas, biomass, etc.), and its core components include furnace, burner, heating surface (such as water pipe, flue pipe) and flue, etc. The fuel combustion releases heat, which is transferred to water through the heating surface to realize energy conversion. The boiler is widely used in industry (such as chemical industry, textile), civil (heating, bathing) and power (driving steam turbine to generate electricity) fields, and is an important source of heat energy for production and life.

[0003] The flue gas waste heat recovery boiler is a kind of equipment that produces steam or hot water by using waste heat generated in the industrial production process. Its core advantage lies in improving energy utilization efficiency, reducing environmental pollution and reducing operating costs. The flue gas waste heat recovery boiler transfers the heat in high-temperature flue gas to water or air through heat exchange technology to produce steam or hot water. This energy conversion process reduces energy waste and improves overall energy utilization efficiency.

[0004] The energy-saving and environment-friendly flue gas waste heat recovery boiler with patent application number 202222482799.5 can improve the filtering effect of flue gas and facilitate the centralized treatment of dust, thereby improving the use efficiency. However, when using the above-mentioned scheme, the dust on the filter screen is cleaned and falls into the dust receiving box by the action of the cleaning brush. The cleaning brush is located on the front side of the filter screen. Although the cleaning brush can clean the filter screen, when the cleaning brush contacts the filter screen, the brush will push the blockage inside the filter hole to the deep part of the filter hole, and the brush will also scrape the dust and particles remaining on the outside of the filter screen to the inside of the filter screen, which can easily cause the filter screen to be blocked, affecting the subsequent flue gas waste heat recovery efficiency. In addition, the filter screen is not convenient to disassemble, and the filter screen will deform due to the flue gas flow after long-term use, which affects the flue gas flow effect and further affects the heat recovery efficiency. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide an energy-saving and environment-friendly flue gas waste heat recovery boiler to solve the problems raised in the above background technology.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] An energy-saving and environment-friendly flue gas waste heat recovery boiler comprises:

[0008] A base and a furnace body mounted on the top of the base, the top of the furnace body being communicated with a gas outlet pipe;

[0009] A connecting pipe communicated with one end of the gas outlet pipe, the inside of the connecting pipe being mounted with a frame, the inner wall of the frame being fixed with a filter screen for filtering smoke dust and particulate matters, the outside of the connecting pipe being provided with a mounting piece for mounting the filter screen;

[0010] A connecting block provided in the inside of the connecting pipe, one side of the connecting block being provided with bristles for cleaning the filter screen, the bottom of the connecting pipe being mounted with a collecting box for collecting dust particulate matters;

[0011] A recovery pipe communicated with one end of the connecting pipe, one end of the recovery pipe being communicated with a heat exchanger body for recovering heat of the smoke.

[0012] Optionally, the mounting piece comprises a mounting rack fixed to one side of the frame, the outside of the connecting pipe is fixed with two groups of limiting seats, and the outside of the limiting seats is fixed with a clamping block.

[0013] Optionally, the mounting piece further comprises a limiting sleeve inserted outside the limiting seat, and the inner wall of the limiting sleeve is threadedly connected with a limiting bolt for limiting the mounting rack.

[0014] Optionally, one end of the gas outlet pipe and the recovery pipe is fixed with a first flange plate, both ends of the connecting pipe are fixed with second flange plates, one side of the second flange plate is mounted with a sealing gasket for improving the sealing performance of the connecting pipe, and the sealing gasket is made of rubber.

[0015] Optionally, the inner wall of the connecting pipe is rotationally connected with a rotating rod for driving the connecting block to rotate, the top of the rotating rod is fixed with a handle, and the outside of the rotating rod is fixedly connected with the inner wall of the connecting block.

[0016] Optionally, the bottom of the connecting pipe is fixed with a mounting seat, one side of the collecting box is fixed with a mounting block, and the inner wall of the mounting block is threadedly connected with a mounting bolt for mounting the collecting box.

[0017] Optionally, the outside of the gas outlet pipe and the recovery pipe is provided with a heat preservation pipe, and the outside of the recovery pipe is provided with a temperature sensor for monitoring the temperature of the smoke.

[0018] Optionally, the outside of the recovery pipe is fixed with a supporting sleeve, and the bottom of the supporting sleeve is fixed with a supporting rod.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] The limiting bolt is screwed with the mounting frame, so that the mounting frame is installed and limited, the frame body and the filter screen are disassembled, and the filter screen is convenient to disassemble and replace, the problem that the filter screen is deformed and inconvenient to replace after long-time use is avoided, the connecting block rotating rod can insert the brush into the filter hole of the filter screen, the filter hole is dredged, and the blockage in the filter hole is cleaned, the brush is located at the back of the filter screen, the problem that dust particles are pushed into the deep filter hole is avoided, and the collecting box can collect the blockage particles cleaned from the filter screen. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0022] Figure 1 It is a structural schematic view of the top of the base in the present application.

[0023] Figure 2 It is a structural schematic view of the gas outlet pipe and the recovery pipe in the present application.

[0024] Figure 3 It is a structural schematic view of the mounting part in the present application.

[0025] Figure 4 It is a structural schematic view of the inside of the connecting pipe in the present application.

[0026] Reference signs:

[0027] 1, base; 2, furnace body; 3, gas outlet pipe; 4, connecting pipe; 5, frame body; 6, filter screen;

[0028] 7, mounting part; 71, mounting frame; 72, limiting seat; 73, clamping block; 74, limiting sleeve; 75, limiting bolt;

[0029] 8, connecting block; 9, brush; 10, collecting box; 11, recovery pipe; 12, heat exchanger body;

[0030] 13, first flange plate; 14, second flange plate; 15, sealing gasket; 16, rotating rod; 17, handle; 18, mounting seat; 19, mounting block; 20, mounting bolt; 21, heat preservation pipe; 22, temperature sensor; 23, supporting sleeve; 24, supporting rod. DETAILED DESCRIPTION

[0031] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is based on the orientation or positional relationship shown in the drawings, or is the orientation or positional relationship commonly used when the utility model product is used, or is the orientation or positional relationship commonly understood by those skilled in the art, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model.

[0032] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise explicitly specified.

[0033] In view of the prior art, the prior art in use, the dust on the filter screen is cleaned into the dust receiving box by the cleaning brush, the cleaning brush is located on the front of the filter screen, although the filter screen can be cleaned, but when the cleaning brush contacts the filter screen, the brush will not only push the blockage in the filter hole to the deep part of the filter hole, but also the dust and particles remaining on the outside of the filter screen will be scraped to the inside of the filter screen, which is easy to cause the filter screen to be blocked, affect the subsequent flue gas waste heat recovery efficiency, and the filter screen is not convenient to disassemble, and the filter screen will be deformed due to the flue gas circulation after long-term use, affecting the flue gas circulation effect, and further affecting the heat recovery efficiency.

[0034] As shown in Figures 1-4 The utility model discloses an energy -conserving and environment -friendly flue gas waste heat recovery boiler, including base 1 and furnace body 2, furnace body 2 installs at the top of base 1, and the top of furnace body 2 is communicated with the gas outlet pipe 3.

[0035] The connecting pipe 4 is communicated to one end of the gas outlet pipe 3, and the inside of the connecting pipe 4 is installed with the frame 5, and the inner wall of the frame 5 is fixed with the filter screen 6 for filtering flue gas dust and particles, and the outside of the connecting pipe 4 is provided with the mounting part 7 for installing the filter screen 6.

[0036] A connecting block 8 is located inside the connecting pipe 4. A brush bristle 9 for cleaning the filter screen 6 is provided on one side of the connecting block 8. A collection box 10 for collecting dust particles is installed at the bottom of the connecting pipe 4.

[0037] The recovery pipe 11 is connected to one end of the connecting pipe 4, and one end of the recovery pipe 11 is connected to the heat exchanger body 12 for recovering heat from the flue gas.

[0038] During use, the flue gas discharged from the furnace body 2 is discharged into the connecting pipe 4 through the exhaust pipe 3. The filter screen 6 filters the dust and particulate matter in the flue gas, preventing dust and particulate matter from clogging the heat exchanger body 12 and affecting the boiler waste heat recovery efficiency. The installation part 7 facilitates the installation and removal of the filter screen 6, avoiding the problem of the filter screen 6 deforming after long-term use and being difficult to replace. The bristles 9 have a certain length, and the connecting block 8 can rotate the rod to insert the bristles 9 into the filter holes of the filter screen 6 to unclog the filter holes and clean the blockage inside the filter holes. The bristles 9 are located on the back of the filter screen 6, avoiding the problem of pushing dust and particulate matter deep into the filter holes. The collection box 10 collects the blockage particles cleaned by the filter screen 6. The heat exchanger body 12 is a heat pipe heat exchanger in the prior art, which transfers the heat of high-temperature flue gas to the liquid for waste heat recovery, which will not be described in detail here.

[0039] Specifically, the mounting component 7 includes a mounting bracket 71 fixed to one side of the frame 5, two sets of limiting seats 72 fixed to the outside of the connecting pipe 4, and a locking block 73 fixed to the outside of the limiting seat 72.

[0040] The mounting bracket 71 is provided with two sets of limit seats 72 and locking blocks 73 to facilitate the subsequent limiting of the mounting bracket 71, thereby installing the frame 5 and the filter screen 6.

[0041] Specifically, the mounting component 7 also includes a limiting sleeve 74 that is inserted into the outside of the limiting seat 72, and the inner wall of the limiting sleeve 74 is threaded with a limiting bolt 75 for limiting the mounting bracket 71.

[0042] The limiting bolt 75 is threaded to the inner wall of the mounting bracket 71. The limiting sleeve 74 is inserted into the outer side of the limiting seat 72. The limiting bolt 75 is rotated to threadedly connect with the mounting bracket 71, thereby limiting the installation of the mounting bracket 71 and allowing the frame 5 and filter screen 6 to be disassembled. This facilitates the subsequent disassembly and replacement of the filter screen 6, avoiding the problem of the filter screen 6 becoming deformed and difficult to replace after long-term use.

[0043] Specifically, a first flange 13 is fixed to one end of both the exhaust pipe 3 and the recovery pipe 11, and a second flange 14 is fixed to both ends of the connecting pipe 4. A sealing gasket 15 to improve the sealing performance of the connecting pipe 4 is installed on one side of the second flange 14. The sealing gasket 15 is made of rubber.

[0044] The first flange 13 and the second flange 14 are fixed with bolts to achieve the effect of installing the connecting pipe 4 between the gas outlet pipe 3 and the recovery pipe 11. The sealing gasket 15 improves the sealing performance at both ends of the connecting pipe 4 and avoids the problem of flue gas leakage.

[0045] Specifically, the inner wall of the connecting pipe 4 is rotatably connected to a rotating rod 16 that drives the connecting block 8 to rotate. A handle 17 is fixed to the top of the rotating rod 16, and the outer side of the rotating rod 16 is fixedly connected to the inner wall of the connecting block 8.

[0046] Turning the handle 17 causes the rotating rod 16 and the connecting block 8 to rotate, which in turn causes the brush bristles 9 to rotate. The continuous rotation of the brush bristles 9 unclogs the filter holes of the filter screen 6 and cleans the blockages inside the filter holes.

[0047] Specifically, a mounting base 18 is fixed to the bottom of the connecting pipe 4, and a mounting block 19 is fixed to one side of the collection box 10. The inner wall of the mounting block 19 is threaded with mounting bolts 20 for installing the collection box 10.

[0048] Insert the collection box 10 into the connecting pipe 4, and fix the mounting block 19 to the top of the mounting base 18 with the mounting bolt 20, thereby achieving the effect of installing the collection box 10 and facilitating the subsequent disassembly and cleaning of the collection box 10.

[0049] Specifically, both the exhaust pipe 3 and the recovery pipe 11 are equipped with heat insulation pipes 21 on their outer sides, and a temperature sensor 22 for monitoring the flue gas temperature is installed on the outer side of the recovery pipe 11.

[0050] Temperature sensor 22 is a prior art technology that converts temperature signals into electrical signals based on thermoelectric effect, resistance effect or infrared absorption effect, so as to achieve accurate temperature measurement and control and achieve the effect of monitoring the flue gas temperature inside recovery pipe 11.

[0051] Specifically, a support sleeve 23 is fixed to the outside of the recycling pipe 11, and a support rod 24 is fixed to the bottom of the support sleeve 23.

[0052] The recovery pipe 11 is supported by the support sleeve 23 and the support rod 24, which improves the stability of the recovery pipe 11 and the exhaust pipe 3.

[0053] In use, the first flange 13 and the second flange 14 are installed with bolts to achieve the effect of installing the connecting pipe 4 between the exhaust pipe 3 and the recovery pipe 11. The sealing gasket 15 improves the sealing performance at both ends of the connecting pipe 4, preventing flue gas leakage. The flue gas discharged from the furnace body 2 is discharged into the connecting pipe 4 through the exhaust pipe 3. The filter screen 6 filters the dust and particulate matter in the flue gas, preventing dust and particulate matter from clogging the heat exchanger body 12 and affecting the boiler waste heat recovery efficiency. The limiting sleeve 74 is inserted into the outside of the limiting seat 72, and the limiting bolt 75 is rotated to connect with the mounting bracket 71 by thread, thereby limiting the installation of the mounting bracket 71. The frame 5 and the filter screen 6 can be disassembled, which facilitates the subsequent disassembly and replacement of the filter screen 6, avoiding the problem of the filter screen 6 becoming deformed after long-term use and difficult to replace. The handle 17 is turned to drive the rotating rod 16 and the connecting block 8 to move. The brush 9 rotates, causing it to continuously unclog the filter holes of the filter screen 6. The brush 9 has a certain length, and the rotating rod of the connecting block 8 allows it to insert into the filter holes of the filter screen 6, clearing blockages and removing impurities. The brush 9 is located on the back of the filter screen 6, preventing dust particles from being pushed deeper into the filter holes. The collection box 10 collects the clogged particles cleared from the filter screen 6. The collection box 10 is inserted into the connecting pipe 4, and the mounting block 19 is fixed to the top of the mounting base 18 using the mounting bolts 20, thus installing the collection box 10 and facilitating subsequent disassembly and cleaning. The temperature sensor 22 monitors the temperature of the flue gas inside the recovery pipe 11. The heat from the high-temperature flue gas is transferred to the liquid through the heat exchanger body 12 for waste heat recovery.

[0054] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An energy-saving and environmentally friendly flue gas waste heat recovery boiler, characterized in that, include: The base (1) and the furnace body (2) are installed on the top of the base (1). The top of the furnace body (2) is connected to the exhaust pipe (3). The connecting pipe (4) is connected to one end of the exhaust pipe (3). A frame (5) is installed inside the connecting pipe (4). A filter screen (6) for filtering flue gas dust and particulate matter is fixed on the inner wall of the frame (5). An installation part (7) for installing the filter screen (6) is provided on the outer side of the connecting pipe (4). The connecting block (8) is located inside the connecting pipe (4). A brush bristle (9) for cleaning the filter screen (6) is provided on one side of the connecting block (8). A collection box (10) for collecting dust and particulate matter is installed at the bottom of the connecting pipe (4). The recovery pipe (11) is connected to one end of the connecting pipe (4). One end of the recovery pipe (11) is connected to a heat exchanger body (12) for recovering heat from the flue gas.

2. The energy-saving and environmentally friendly flue gas waste heat recovery boiler according to claim 1, characterized in that, The mounting component (7) includes a mounting bracket (71) fixed to one side of the frame (5), two sets of limiting seats (72) are fixed to the outside of the connecting pipe (4), and a locking block (73) is fixed to the outside of the limiting seat (72).

3. The energy-saving and environmentally friendly flue gas waste heat recovery boiler according to claim 2, characterized in that, The mounting component (7) also includes a limiting sleeve (74) inserted into the outside of the limiting seat (72), and the inner wall of the limiting sleeve (74) is threaded with a limiting bolt (75) for limiting the mounting bracket (71).

4. The energy-saving and environmentally friendly flue gas waste heat recovery boiler according to claim 1, characterized in that, The first flange (13) is fixed at one end of the air outlet pipe (3) and the recovery pipe (11), and the second flange (14) is fixed at both ends of the connecting pipe (4). A sealing gasket (15) to improve the sealing performance of the connecting pipe (4) is installed on one side of the second flange (14). The sealing gasket (15) is made of rubber.

5. The energy-saving and environmentally friendly flue gas waste heat recovery boiler according to claim 1, characterized in that, The inner wall of the connecting pipe (4) is rotatably connected to a rotating rod (16) that drives the connecting block (8) to rotate. A handle (17) is fixed to the top of the rotating rod (16), and the outer side of the rotating rod (16) is fixedly connected to the inner wall of the connecting block (8).

6. The energy-saving and environmentally friendly flue gas waste heat recovery boiler according to claim 1, characterized in that, The bottom of the connecting pipe (4) is fixed with a mounting base (18), and a mounting block (19) is fixed on one side of the collection box (10). The inner wall of the mounting block (19) is threaded with mounting bolts (20) for installing the collection box (10).

7. The energy-saving and environmentally friendly flue gas waste heat recovery boiler according to claim 1, characterized in that, Both the exhaust pipe (3) and the recovery pipe (11) are provided with heat insulation pipes (21) on the outside, and a temperature sensor (22) for monitoring the flue gas temperature is provided on the outside of the recovery pipe (11).

8. The energy-saving and environmentally friendly flue gas waste heat recovery boiler according to claim 1, characterized in that, A support sleeve (23) is fixed to the outside of the recycling tube (11), and a support rod (24) is fixed to the bottom of the support sleeve (23).

Images