A boiler processing device with waste heat recovery function

Abstract

The utility model discloses a boiler processing device with residual heat recovery function, including pass through the smoke pipeline, pass through the smoke pipeline one side fixed installation has the water inlet pipe, pass through the smoke pipeline's other side fixedly connected with the water outlet pipe, fixedly connected with two groups of mounting panel in pass through the smoke pipeline, two groups fixed mounting have the heat exchange pipe between mounting panel, the heat exchange pipe is "serpentine" setting, one end of heat exchange pipe is fixedly connected with the water inlet pipe, the other end of heat exchange pipe is fixedly connected with the water outlet pipe, be provided with dustproof subassembly in pass through the smoke pipeline, in the utility model, through the heat exchange pipe to the residual heat in the high temperature flue gas of boiler discharge carries out the recovery, makes the feedwater of entering the boiler and obtains the preheating, has reduced the fuel quantity required for the boiler combustion, and then has reduced the energy waste and the heat influence to the surrounding environment.

Description

Technical Field

[0001] This utility model relates to the field of boiler equipment, specifically to a boiler processing device with waste heat recovery function. Background Technology

[0002] A boiler is an energy conversion device that converts chemical energy or electrical energy into heat energy through combustion or electric heating by inputting fuel (such as coal, oil, natural gas, biomass, etc.) or electricity into the boiler. This heat energy is then used to heat water into hot water or steam, providing the heat energy needed for industrial production and residential life.

[0003] Boilers heat incoming cold water through combustion to produce the required steam and hot water. During the combustion process, a large amount of high-temperature flue gas is generated. This flue gas carries a large amount of unused heat energy. The high-temperature flue gas is directly discharged into the atmosphere, which not only wastes energy but also has a thermal impact on the surrounding environment, such as exacerbating the urban heat island effect and causing environmental pollution. Utility Model Content

[0004] In response to the technical problem that the high-temperature flue gas generated by existing boilers is directly emitted into the atmosphere, which not only wastes energy but also causes thermal impact on the surrounding environment, this utility model provides a boiler processing device with waste heat recovery function.

[0005] The technical solution adopted by this utility model is as follows: it includes a flue pipe, an inlet pipe is fixedly installed on one side of the flue pipe, an outlet pipe is fixedly connected to the other side of the flue pipe, two sets of mounting plates are fixedly connected in the flue pipe, a heat exchange tube is fixedly installed between the two sets of mounting plates, the heat exchange tube is arranged in a "serpentine" shape, one end of the heat exchange tube is fixedly connected to the inlet pipe, the other end of the heat exchange tube is fixedly connected to the outlet pipe, and a dustproof component is provided in the flue pipe.

[0006] Furthermore, several sets of heat exchange fins are fixedly installed on the heat exchange tube, and the several sets of heat exchange fins are arranged at equal intervals.

[0007] By adopting the above technical solutions, the efficiency of heat exchange tubes in recovering waste heat from flue gas can be improved.

[0008] Furthermore, the dustproof assembly includes a slot formed on the flue pipe and a mounting frame slidably installed in the slot. The slot is located on the same side as the water inlet pipe, and a dustproof filter is fixedly installed in the mounting frame, with the dustproof filter positioned above the heat exchange tube.

[0009] By adopting the above technical solution, the impurities in the flue gas can be avoided from affecting the waste heat recovery efficiency of the heat exchange tube.

[0010] Furthermore, the mounting frame has two sets of movable cavities, each with a limit block slidably installed. A first spring is fixedly installed in each movable cavity, with one end of the first spring fixedly connected to the limit block. The smoke duct has two sets of limit grooves, which are respectively connected to the two sets of movable cavities. The limit block is adapted to the limit groove, and a sealing gasket is fixedly installed in the slot.

[0011] By adopting the above technical solutions, the stability of the dust filter after installation can be improved.

[0012] Furthermore, a sliding groove is provided on one side of the mounting frame, the sliding groove is connected to the movable cavity, and a push plate is slidably connected in the sliding groove, the push plate being fixedly installed on one side of the limiting block.

[0013] By adopting the above technical solution, it is easy to disassemble the dust filter.

[0014] Furthermore, a guide hole is provided on the side wall of the movable cavity, and a guide rod is slidably installed in the guide hole. The guide rod is fixedly connected to the limiting block, and the first spring is sleeved on the outside of the guide rod.

[0015] By adopting the above technical solution, the stability of the first spring during use is improved.

[0016] Furthermore, the smoke duct is provided with an installation groove, in which a second spring is fixedly connected, and the end of the mounting frame away from the push plate is provided with a positioning groove, which is adapted to the second spring.

[0017] By adopting the above technical solution, the ease of disassembling the dust filter is improved.

[0018] The beneficial effects of this utility model are as follows: through the flue pipe in conjunction with the inlet pipe, heat exchange pipe, heat exchange fins and outlet pipe, cold water supplied by the external water supply equipment enters the heat exchange pipe through the inlet pipe and exchanges heat with the high temperature flue gas generated by the boiler. The heated water flows into the boiler through the outlet pipe for use. The heat exchange pipe allows the cold water to recover the waste heat in the flue gas, so that the feedwater entering the boiler is preheated, reducing the amount of fuel required for boiler combustion, improving the thermal efficiency of the boiler, reducing energy waste, and at the same time reducing the flue gas emission temperature and reducing the thermal impact on the surrounding environment.

[0019] The installation frame, in conjunction with the dust filter, filters impurities in the flue gas flowing through the heat exchange tubes, preventing impurities from falling onto the heat exchange tubes and fins, accumulating dust and forming an insulation layer that affects the heat exchange efficiency of the heat exchange tubes. The movable cavity, along with the limiting block, limiting groove, first spring, push plate, and second spring, improves the stability of the dust filter after installation and facilitates the disassembly and cleaning of the dust filter, thereby enhancing the practicality and convenience of the device. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a cross-sectional structural diagram of the flue pipe in this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the heat exchange tube and heat exchange fins in this utility model;

[0023] Figure 4 This is a cross-sectional structural diagram of the mounting frame in this utility model;

[0024] Figure 5 Appendix of this utility model Figure 4 Enlarged view of point A in the middle;

[0025] Figure 6 Appendix of this utility model Figure 4 Enlarged view of section B in the middle.

[0026] The following are the labels in the diagram: 1. Smoke duct; 2. Water inlet pipe; 3. Water outlet pipe; 4. Mounting plate; 5. Heat exchanger tube; 6. Heat exchanger fins; 7. Slot; 8. Mounting frame; 9. Dust filter; 10. Movable cavity; 11. Limiting block; 12. Limiting groove; 13. First spring; 14. Slide groove; 15. Push plate; 16. Guide hole; 17. Guide rod; 18. Sealing gasket; 19. Mounting groove; 20. Second spring; 21. Positioning groove. Detailed Implementation

[0027] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The following is in conjunction with the appendix Figure 1 - Appendix Figure 6 The present invention will be further described below.

[0030] To address the problems existing in the background technology, this application proposes the following technical solution: It includes a flue pipe 1, with an inlet pipe 2 fixedly installed on one side of the flue pipe 1 and an outlet pipe 3 fixedly connected to the other side. Two sets of mounting plates 4 are fixedly connected in the flue pipe 1, and a heat exchange tube 5 is fixedly installed between the two sets of mounting plates 4. The heat exchange tube 5 is arranged in a "serpentine" shape, with one end of the heat exchange tube 5 fixedly connected to the inlet pipe 2 and the other end of the heat exchange tube 5 fixedly connected to the outlet pipe 3. A dustproof component is provided in the flue pipe 1.

[0031] The upper end of flue gas duct 1 is connected to the boiler exhaust end. High-temperature flue gas generated during boiler combustion enters flue gas duct 1 and flows downwards within it. Water inlet pipe 2 is connected to an external water supply pipe, and water outlet pipe 3 is connected to the boiler's water inlet pipe. Cold water is supplied to water inlet pipe 2 via an external water supply pipe, then enters heat exchange tube 5 and flows upwards. Finally, it flows into the boiler through water outlet pipe 3 for heating, forming hot water and generating steam. As the high-temperature flue gas flows through flue gas duct 1, it washes over heat exchange tube 5. The cold water flowing through heat exchange tube 5 further enhances the heat exchange effect. The heat in the flue gas is absorbed to achieve heat exchange, and the temperature of the cold water in the heat exchange tube 5 is increased, which preheats the feedwater entering the boiler, reduces the amount of fuel required for boiler combustion, improves the boiler's thermal efficiency, realizes the recovery and reuse of waste heat from the high-temperature flue gas, and reduces energy waste. At the same time, the temperature of the flue gas is reduced by absorbing waste heat through the heat exchange tube 5, thereby reducing the flue gas emission temperature and reducing the thermal impact on the surrounding environment. Since the flue gas contains a large number of unburned impurity particles, the dustproof components treat the impurities in the flue gas to prevent them from falling onto the heat exchange tube 5 and affecting its heat exchange with the flue gas.

[0032] Furthermore, several sets of heat exchange fins 6 are fixedly installed on the heat exchange tube 5, and the sets of heat exchange fins 6 are equidistantly arranged.

[0033] By setting the heat exchange fins 6, the contact area between the heat exchange tube 5 and the high-temperature flue gas is increased, thereby improving the heat exchange efficiency of the heat exchange tube 5, which in turn improves the efficiency of recovering waste heat from the flue gas and the cooling effect of the flue gas, thus improving the practicality of the heat exchange tube 5.

[0034] To further explain, the dustproof component includes a slot 7 opened on the flue duct 1 and a mounting frame 8 slidably installed in the slot 7. The slot 7 is located on the same side as the water inlet pipe 2. A dustproof filter 9 is fixedly installed in the mounting frame 8 and is located above the heat exchange tube 5.

[0035] The mounting frame 8 provides installation conditions for the dust filter 9. By inserting the mounting frame 8 into the slot 7, the dust filter 9 is installed above the heat exchange tube 5. The high-temperature flue gas in the flue duct 1 flows from top to bottom and must pass through the dust filter 9 before it can contact the heat exchange tube 5 and the heat exchange fins 6. The dust filter 9 filters impurities in the flue gas, preventing impurities from falling onto the heat exchange tube 5 and the heat exchange fins 6 and accumulating dust to form an insulation layer that affects the heat exchange efficiency of the heat exchange tube 5. The dustproof component prevents impurities in the flue gas from affecting the heat exchange tube 5, thus improving the practicality of the device.

[0036] Furthermore, the mounting frame 8 has two sets of movable cavities 10, each of which is slidably fitted with a limit block 11. A first spring 13 is fixedly installed in each movable cavity 10, with one end of the first spring 13 fixedly connected to the limit block 11. The smoke duct 1 has two sets of limit grooves 12, which are respectively connected to the two sets of movable cavities 10. The limit block 11 is adapted to the limit groove 12. A sealing gasket 18 is fixedly installed in the slot 7.

[0037] During the installation of the dust filter 9, as the mounting frame 8 is inserted into the slot 7, the limiting block 11 contacts the outer wall of the smoke duct 1. One end of the limiting block 11 is beveled, and the outer wall of the smoke duct 1 applies pressure to one end of the limiting block 11, causing the limiting block 11 to slide into the movable cavity 10. At this time, the first spring 13 is compressed and deformed. After the mounting frame 8 is fully inserted into the slot 7, the limiting block 11 moves to the position of the limiting groove 12. After the limiting block 11 loses the restriction of the side wall of the smoke duct 1, the compressed first spring 13 pushes the limiting block 11 to move in order to return to its initial state, so that one end of the limiting block 11 moves from the movable cavity 10 to the limiting groove 12 (as shown in the attached figure). Figure 5 As shown, the limiting block 11, together with the limiting groove 12, restricts the movement of the mounting frame 8, fixing the mounting frame 8 in the slot 7, thereby fixing the dust filter 9 in the flue duct 1, improving the stability of the dust filter 9 after installation. After the mounting frame 8 is installed, it squeezes the sealing gasket 18. The sealing gasket 18 is made of elastic material, and its elasticity is used to seal the slot 7, preventing the high-temperature flue gas in the flue duct 1 from leaking out and causing waste of heat energy.

[0038] Furthermore, a slide groove 14 is provided on one side of the mounting frame 8. The slide groove 14 is connected to the movable cavity 10. A push plate 15 is slidably connected in the slide groove 14. The push plate 15 is fixedly installed on one side of the limiting block 11.

[0039] By pushing the push plate 15 to slide in the slide groove 14, the push plate 15 drives the limiting block 11 to move, so that the limiting block 11 moves out of the limiting groove 12, thereby releasing the limitation of the limiting groove 12 and the limiting block 11 on the movement of the mounting frame 8. The mounting frame 8 can then drive the dust filter 9 to move out of the slot 7, thereby removing the dust filter 9 from the smoke duct 1. This facilitates cleaning of the dust filter 9, prevents excessive accumulation of impurities on it from affecting the passage of flue gas, and improves the practicality of the dust filter 9.

[0040] Furthermore, a guide hole 16 is provided on the side wall of the movable cavity 10, and a guide rod 17 is slidably installed in the guide hole 16. The guide rod 17 is fixedly connected to the limiting block 11, and the first spring 13 is sleeved on the outside of the guide rod 17.

[0041] The guide rod 17, in conjunction with the guide hole 16, guides and limits the movement of the limit block 11, improving the stability of the limit block 11 during movement. At the same time, the guide rod 17 limits the first spring 13, preventing the first spring 13 from shifting during deformation and ensuring the normal use of the first spring 13.

[0042] Furthermore, the smoke duct 1 is provided with an installation groove 19, in which a second spring 20 is fixedly connected. The end of the mounting frame 8 away from the push plate 15 is provided with a positioning groove 21, which is adapted to the second spring 20.

[0043] During the installation of the dust filter 9, when the mounting frame 8 is inserted into the slot 7, one end of it contacts and presses against the second spring 20, causing the second spring 20 to compress and deform. After the dust filter 9 is installed in the smoke duct 1, the mounting frame 8 is in the slot 7, at which point the second spring 20 is in a compressed state. When it is necessary to clean the impurities on the dust filter 9, during the process of removing the dust filter 9 from the smoke duct 1, when the limit block 11 no longer restricts the movement of the mounting frame 8, the compressed second spring 20 returns to its initial state and pushes the mounting frame 8 to move, causing the mounting frame 8 to pop out of the slot 7. This facilitates the removal of the dust filter 9 by pulling the mounting frame 8 out of the slot 7, improving the ease of removing the dust filter 9. The positioning groove 21 facilitates the alignment of the mounting frame 8 and the second spring 20, preventing the second spring 20 from shifting.

[0044] For specific operation, please refer to the following: The upper end of the flue gas duct 1 is connected to the boiler exhaust end. The high-temperature flue gas generated during boiler combustion enters the flue gas duct 1 and flows from top to bottom. The water inlet pipe 2 is connected to the external water supply pipe, and the water outlet pipe 3 is connected to the boiler's water inlet pipe. Cold water is transported to the water inlet pipe 2 through the external water supply pipe, and then enters the heat exchange tube 5 through the water inlet pipe 2, flowing from bottom to top. The high-temperature flue gas flows through the flue gas duct 1 and is filtered by the dust filter screen 9 before being flushed. The heat exchange tube 5, through which cold water flows, absorbs heat from the high-temperature flue gas to achieve heat exchange, thereby raising the temperature of the cold water in the heat exchange tube 5 and preheating the feedwater entering the boiler, thus reducing the amount of fuel required for boiler combustion. When too many impurities accumulate on the dust filter 9, the push plate 15 moves the limiting block 11 out of the limiting groove 12, and the second spring 20 pops the mounting frame 8 out of the slot 7. Then, the mounting frame 8 is pulled out of the slot 7, the dust filter 9 is cleaned, and then it is installed in the flue gas duct 1.

[0045] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0046] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A boiler processing device with waste heat recovery function, characterized in that, The flue includes a flue pipe (1), on one side of which a water inlet pipe (2) is fixedly installed, and on the other side of which a water outlet pipe (3) is fixedly connected. Two sets of mounting plates (4) are fixedly connected in the flue pipe (1), and a heat exchange pipe (5) is fixedly installed between the two sets of mounting plates (4). The heat exchange pipe (5) is arranged in a "serpentine" shape. One end of the heat exchange pipe (5) is fixedly connected to the water inlet pipe (2), and the other end of the heat exchange pipe (5) is fixedly connected to the water outlet pipe (3). A dustproof component is provided in the flue pipe (1).

2. The boiler processing device with waste heat recovery function according to claim 1, characterized in that, Several sets of heat exchange fins (6) are fixedly installed on the heat exchange tube (5), and the several sets of heat exchange fins (6) are arranged at equal intervals.

3. A boiler processing device with waste heat recovery function according to claim 2, characterized in that, The dustproof assembly includes a slot (7) opened on the flue pipe (1) and a mounting frame (8) slidably installed in the slot (7). The slot (7) is located on the same side of the water inlet pipe (2). A dustproof filter (9) is fixedly installed in the mounting frame (8). The dustproof filter (9) is located above the heat exchange tube (5).

4. A boiler processing device with waste heat recovery function according to claim 3, characterized in that, The mounting frame (8) has two sets of movable cavities (10), and each set of movable cavities (10) has a limit block (11) slidably installed in each set of movable cavities (10). A first spring (13) is fixedly installed in each movable cavity (10), and one end of the first spring (13) is fixedly connected to the limit block (11). The smoke duct (1) has two sets of limit grooves (12), and the two sets of limit grooves (12) are respectively connected to the two sets of movable cavities (10). The limit block (11) is adapted to the limit groove (12). A sealing gasket (18) is fixedly installed in the slot (7).

5. A boiler processing device with waste heat recovery function according to claim 4, characterized in that, A sliding groove (14) is provided on one side of the mounting frame (8). The sliding groove (14) is connected to the movable cavity (10). A push plate (15) is slidably connected in the sliding groove (14). The push plate (15) is fixedly installed on one side of the limiting block (11).

6. A boiler processing device with waste heat recovery function according to claim 5, characterized in that, A guide hole (16) is provided on the side wall of the active cavity (10), and a guide rod (17) is slidably installed in the guide hole (16). The guide rod (17) is fixedly connected to the limiting block (11), and the first spring (13) is sleeved on the outside of the guide rod (17).

7. A boiler processing device with waste heat recovery function according to claim 6, characterized in that, The smoke duct (1) has an installation groove (19) and a second spring (20) is fixedly connected in the installation groove (19). The mounting frame (8) has a positioning groove (21) at one end away from the push plate (15) and the positioning groove (21) is adapted to the second spring (20).

Images