A waste heat boiler with smoke gas side leakage prevention

Abstract

This application relates to a waste heat boiler with anti-flue gas side leakage protection, belonging to the technical field of boiler equipment. It includes a frame, a furnace body mounted on the frame, and a flue connected to the furnace body. A vibration damping device is installed on the frame to reduce the vibration amplitude of the flue. This application achieves this by fixing a mounting frame to the frame and installing a vibration damping plate on the mounting frame that contacts the flue. The vibration damping plate confines the flue, reducing the probability of vibration under the influence of internal flue gas flow. Furthermore, the vibration damping plate also covers the outside of the flue, further reducing the probability of flue gas side leakage.

Description

Technical Field

[0001] This application relates to the technical field of boiler equipment, and in particular to a waste heat boiler that prevents side leakage of flue gas. Background Technology

[0002] A waste heat boiler is a device specifically designed to recover waste heat from exhaust gases, waste materials, or waste liquids generated during industrial production processes and convert it into usable energy. This type of boiler utilizes this waste heat to heat water, producing steam or hot water, thereby improving energy efficiency and reducing energy waste.

[0003] In related technologies, one can refer to Chinese invention patent with authorization announcement number CN101451703A, which discloses a furnace body of a waste heat boiler, including: a transition section flue, which includes a rising part and a falling part, with the top end of the rising part connected to the top end of the falling part; and a convection section flue, the inlet of which is connected to the lower end of the falling part of the transition section flue and the outlet of which forms an outlet.

[0004] However, in actual operation, the high temperature and high speed of flue gas may cause equipment vibration, which in turn may lead to flue gas leakage, affecting the boiler's thermal efficiency and operational stability. Summary of the Invention

[0005] In order to reduce the probability of flue gas vibration and leakage caused by flue gas flow, this application provides a waste heat boiler that prevents side leakage of flue gas.

[0006] This application provides a waste heat boiler with anti-smoke gas side leakage, which adopts the following technical solution:

[0007] A waste heat boiler with flue gas leakage prevention includes a frame, a furnace body and a flue connected to the furnace body are mounted on the frame, and a vibration damping device for reducing the vibration amplitude of the flue is mounted on the frame. The vibration damping device includes:

[0008] The mounting frame is set on the frame, the flue is located inside the mounting frame, and a plurality of mounting frames are provided, which are evenly distributed along the length of the flue.

[0009] A shock-absorbing plate is mounted on a mounting frame. The inner wall of the shock-absorbing plate is corrugated and abuts against the outer wall of the flue.

[0010] A shock absorber bar is slidably mounted on two adjacent mounting frames, and the shock absorber bar abuts against the outer wall of the shock-absorbing plate.

[0011] A reset mechanism is provided on the mounting frame so that it can drive the shock absorber rod back to its original position after the shock absorber rod has been moved.

[0012] By adopting the above technical solution, a mounting frame is fixed on the frame, and a shock-absorbing plate that contacts the flue is installed on the mounting frame. The shock-absorbing plate limits the flue, reducing the probability of the flue vibrating under the action of internal flue gas flow. The shock-absorbing plate also covers the outside of the flue, reducing the probability of flue gas leakage. A damping rod is slidably installed on the mounting frame through a reset mechanism. When the shock-absorbing plate vibrates or deforms with the flue, the damping rod can slide along the surface of the shock-absorbing plate, thereby absorbing the vibration or deformation of the shock-absorbing plate, thus greatly reducing the vibration amplitude of the flue and reducing the probability of flue gas leakage inside the flue.

[0013] Optionally, the mounting frame includes a bottom rod, a top rod, and two side rods installed between the bottom rod and the top rod. Both ends of the bottom rod and the top rod are provided with mounting holes. Both ends of the side rods are provided with mounting blocks. The mounting blocks are inserted into the mounting holes. Elastic blocks are provided on the inner sidewall of the mounting holes. A movement gap is left between the mounting blocks and the inner sidewall of the mounting holes. The elastic blocks fill the movement gap.

[0014] By adopting the above technical solution, the mounting frame is configured as a combination of a bottom rod, a top rod, and two side rods. Elastic blocks are installed in the mounting holes of the bottom rod and the top rod, so that the two side rods can undergo a certain amount of relative displacement with the bottom rod and the top rod when subjected to vibration, thereby buffering the vibration. At the same time, it also reduces the probability of damage to the connection between the side rods and the bottom rod and the top rod under long-term vibration, and improves the overall service life of the mounting frame.

[0015] Optionally, the reset mechanism includes:

[0016] A reset block, which is vertically slidably sleeved on a side rod, and a shock-absorbing rod is disposed on the reset block;

[0017] A hydraulic damper, wherein the hydraulic damper is mounted on the base rod and connected to the reset block;

[0018] A return spring is sleeved on a hydraulic damper. One end of the return spring is connected to the bottom rod, and the other end of the return spring is connected to the return block.

[0019] By adopting the above technical solution, a reset block is slidably sleeved on the side rod, and the shock absorber is installed on the reset block. When the shock absorber moves, the hydraulic damper absorbs and buffers the vibration of the shock absorber, thereby reducing the vibration amplitude. After the shock absorber has finished vibrating, the shock absorber returns to its original position under the action of the reset spring, which facilitates subsequent work.

[0020] Optionally, the side wall of the shock absorber rod that contacts the shock absorber plate is also corrugated, and the shock absorber rod is fully fitted to the side wall of the shock absorber plate.

[0021] By adopting the above technical solution, the side wall of the damping rod that contacts the vibration damping plate is also corrugated, so that the damping rod and the side wall of the vibration damping plate are fully in contact, thereby increasing the contact area between the damping rod and the vibration damping plate. By improving the transmission efficiency of vibration between the damping rod and the vibration damping plate, the damping effect of the damping rod on the vibration damping plate is enhanced.

[0022] Optionally, the mounting frame is provided with a sealing mechanism for sealing the side edges of two adjacent shock-absorbing plates that are close to each other. The sealing mechanism includes:

[0023] A sealing block is provided between two adjacent mounting frames. The two ends of the sealing block are respectively connected to the bottom rod or top rod on the two adjacent mounting frames. The two mutually perpendicular outer side walls of the sealing block that are not connected to the mounting frames are provided with insertion grooves for the insertion of the shock-absorbing plate.

[0024] A clamping assembly is disposed on the sealing block and is used to clamp and fix the shock-absorbing plate in the insertion slot.

[0025] By adopting the above technical solution, a sealing block is installed between two mounting frames, and then two adjacent shock-absorbing plates are inserted into the sealing block. The clamping component on the sealing block clamps and fixes the shock-absorbing plates in the insertion groove. This completes the fixed installation of the shock-absorbing plates and seals the gap between the two shock-absorbing plates, thereby reducing the probability of flue gas leakage in the flue causing pollution to the working environment.

[0026] Optionally, the clamping assembly includes:

[0027] The first clamping block and the second clamping block are respectively slidably installed on the two inner sidewalls of the insertion slot with sliding grooves.

[0028] A first spring and a second spring are respectively disposed in two sliding grooves and connected to a first clamping block and a second clamping block. Under the action of the first spring and the second spring, the first clamping block and the second clamping block partially extend out of the sliding grooves to clamp the shock-absorbing plate.

[0029] By adopting the above technical solution, sliding grooves are provided on the two opposite inner sidewalls of the insertion groove. Then, the first clamping block and the second clamping block are slidably installed on the two sliding grooves by the first spring and the second spring. The first clamping block and the second clamping block cooperate to clamp and fix the shock-absorbing plate, thereby completing the fixing of the shock-absorbing plate in the insertion groove.

[0030] Optionally, an arc-shaped guide surface is provided on the side wall of the first clamping block and the second clamping block near the opening of the insertion slot at the end of the first clamping block that protrudes from the sliding groove.

[0031] By adopting the above technical solution, an arc-shaped guide surface is opened on the side wall of the first clamping block and the second clamping block near the opening of the insertion groove at the end of the first clamping block and the second clamping block that protrudes out of the sliding groove. Thus, when the shock-absorbing plate is moved into the insertion groove, the shock-absorbing plate will first contact the guide surface. The guide surface will generate a component force to drive the first clamping block and the second clamping block into the sliding groove. Therefore, it is not necessary to manually squeeze the first clamping block and the second clamping block into the sliding groove, which simplifies the installation steps and improves work efficiency.

[0032] Optionally, a semi-circular sealing block is provided on one end of the first clamping block and the second clamping block that are close to each other, and the sealing block fills the gap between the first clamping block, the second clamping block and the shock-absorbing plate.

[0033] By adopting the above technical solution, semi-circular sealing blocks are installed on the ends of the first clamping block and the second clamping block that are close to each other. The sealing blocks fill the gaps between the first clamping block, the second clamping block and the corrugated shock-absorbing plate, thereby enhancing the sealing performance and connection strength.

[0034] Optionally, the shock-absorbing plate includes an inner plate, an outer plate, and a thermal insulation layer disposed between the inner plate and the outer plate. The inner plate abuts against the outer wall of the flue. The inner plate and the outer plate are fixed together by screws. The inner plate and the outer plate are clamped together by the screws to form the thermal insulation layer.

[0035] By adopting the above technical solution, the shock-absorbing plate is configured as an inner plate, an outer plate, and a thermal insulation layer. This enhances the structural strength of the shock-absorbing plate, while the thermal insulation layer reduces the heat dissipation of the flue gas inside the flue, ensuring the utilization rate of the flue gas heat. In addition, the thermal insulation surface layer can also reduce the noise generated when the flue vibrates, thus reducing pollution.

[0036] In summary, this application includes at least one of the following beneficial technical effects:

[0037] 1. By fixing the mounting frame on the frame and installing the anti-vibration plate on the mounting frame that contacts the flue, the anti-vibration plate limits the flue and reduces the probability of the flue vibrating under the action of internal flue gas flow. The anti-vibration plate also covers the outside of the flue, reducing the probability of flue gas leakage.

[0038] 2. By sliding the damping rod on the mounting frame through the reset mechanism, when the damping plate vibrates or deforms with the flue, the damping rod can slide along the surface of the damping plate, thereby absorbing the vibration or deformation of the damping plate, thus greatly reducing the vibration amplitude of the flue and reducing the probability of flue gas leakage in the flue.

[0039] 3. By setting the shock-absorbing plate as an inner plate, an outer plate, and a thermal insulation layer, the structural strength of the shock-absorbing plate is enhanced. At the same time, the thermal insulation layer can reduce the heat dissipation of the flue gas inside the flue, ensuring the utilization rate of flue gas heat. In addition, the thermal insulation surface layer can also reduce the noise generated when the flue vibrates, thus reducing pollution. Attached Figure Description

[0040] Figure 1 This is a three-dimensional structural diagram of this application;

[0041] Figure 2 This is a structural schematic diagram of the shock absorption device in this application, in which the side wall of the top rod is shown in section.

[0042] Figure 3 This is a structural schematic diagram of the sealing mechanism in this application, in which the side wall of the sealing block is shown in cross section.

[0043] Reference numerals: 1. Frame; 11. Furnace body; 12. Flue; 13. Filler block; 2. Vibration damping device; 21. Mounting frame; 22. Anti-vibration plate; 23. Vibration damping rod; 24. Reset mechanism; 25. Bottom rod; 26. Top rod; 27. Side rod; 28. Mounting block; 29. ​​Elastic block; 31. Inner plate; 32. Outer plate; 33. Insulation layer; 41. Reset block; 42. Hydraulic damper; 43. Reset spring; 5. Sealing mechanism; 51. Sealing block; 52. Clamping assembly; 53. Insertion groove; 54. First clamping block; 55. Second clamping block; 56. First spring; 57. Second spring; 58. Sliding groove; 59. Guide surface. Detailed Implementation

[0044] The following is in conjunction with the appendix Figure 1 -Appendix Figure 3 This application will be described in further detail.

[0045] This application discloses a waste heat boiler that prevents side leakage of flue gas.

[0046] Reference Figure 1 The waste heat boiler for preventing side leakage of flue gas includes a frame 1, on which a furnace body 11 and a flue 12 connected to the furnace body 11 are installed. A vibration damping device 2 for reducing the vibration amplitude of the flue 12 is installed on the frame 1.

[0047] Reference Figure 1 and Figure 2The vibration damping device 2 includes a mounting frame 21, a vibration damping plate 22, a vibration damping rod 23, and a reset mechanism 24. The mounting frame 21 is fixedly mounted on the frame 1. Several mounting frames 21 are provided, and the mounting frames 21 are evenly distributed along the length of the flue 12. The mounting frame 21 includes a bottom rod 25, a top rod 26, and two side rods 27 installed between the bottom rod 25 and the top rod 26. The bottom rod 25 is fixedly mounted on the frame 1 and abuts against the lower surface of the flue 12. Vertical mounting holes are opened at both ends of the bottom rod 25 and the top rod 26. Mounting blocks 28 are fixedly installed at both ends of the side rods 27 and are inserted into the mounting holes. Elastic blocks 29 are fixedly installed on the inner sidewall of the mounting holes. A movement gap is left between the mounting blocks 28 and the inner sidewall of the mounting holes, and the elastic blocks 29 fill the movement gap. The elastic block 29 buffers the displacement of the two side rods 27 caused by vibration, and also reduces the probability of loosening and damage at the connection between the side rods 27 and the bottom rod 25 and the top rod 26 under long-term vibration, thus improving the overall service life of the mounting frame 21.

[0048] Reference Figure 2 and Figure 3 The vibration damping plate 22 is fixedly installed between two adjacent mounting frames 21 and abuts against the outer wall of the flue 12. The vibration damping plate 22 includes an inner plate 31, an outer plate 32, and an insulation cotton layer 33 laid between the inner plate 31 and the outer plate 32. The inner plate 31 abuts against the outer wall of the flue 12. The inner plate 31 and the outer plate 32 are fixed together by screws, and the inner plate 31 and the outer plate 32 clamp the insulation layer under the action of the screws. Both the inner plate 31 and the outer plate 32 are corrugated.

[0049] Reference Figure 2 and Figure 3 The shock absorber 23 is vertically slidably mounted on the side rod 27 via the reset mechanism 24. The reset mechanism 24 includes a reset block 41, a hydraulic damper 42, and a reset spring 43. The reset block 41 is vertically slidably sleeved on the outer wall of the side rod 27. The shock absorber 23 is fixedly mounted on the outer wall of the reset block 41 and abuts against the outer wall of the outer plate 32. The reset block 41 is vertically slidably sleeved on the side rod 27. The shock absorber 23 is fixedly mounted on the side wall of the reset block 41. The hydraulic damper 42 is fixedly mounted on the upper surface of the bottom rod 25 and fixedly connected to the reset block 41. The reset spring 43 is sleeved on the hydraulic damper 42, one end of the reset spring 43 is connected to the bottom rod 25, and the other end of the reset spring 43 is fixedly connected to the reset block 41.

[0050] Reference Figure 2The side wall of the damping rod 23 that contacts the anti-vibration plate 22 is also corrugated, and the damping rod 23 is fully fitted to the outer side wall of the outer plate 32. When the flue 12 vibrates, it causes the anti-vibration plate 22 to vibrate, which in turn causes the damping rod 23 to move. The hydraulic damper 42 absorbs and buffers the vibration of the damping rod 23, thereby reducing the vibration amplitude. After the damping rod 23 finishes vibrating, it returns to its original position under the action of the return spring 43, which facilitates subsequent operation.

[0051] Reference Figure 2 and Figure 3 The mounting frame 21 is equipped with a sealing mechanism 5 for sealing the sides of two adjacent shock-absorbing plates 22 that are close to each other. The sealing mechanism 5 includes a sealing block 51 and a clamping assembly 52. ​​The sealing block 51 is fixedly installed between two adjacent mounting frames 21. Both ends of the sealing block 51 are connected to the bottom rod 25 or top rod 26 on the two adjacent mounting frames 21, respectively. The two mutually perpendicular outer side walls of the sealing block 51 that are not connected to the mounting frame 21 are provided with insertion slots 53 for the shock-absorbing plates 22 to be inserted. The clamping assembly 52 is provided on the sealing block 51 and is used to clamp and fix the shock-absorbing plates 22 in the insertion slots 53.

[0052] Reference Figure 2 and Figure 3 The clamping assembly 52 includes a first clamping block 54, a second clamping block 55, a first spring 56, and a second spring 57. Sliding grooves 58 are formed on the two opposing inner sidewalls of the insertion groove 53, and the first clamping block 54 and the second clamping block 55 are slidably mounted on the two sliding grooves 58 respectively. The first spring 56 and the second spring 57 are fixedly mounted in the two sliding grooves 58 and connected to the first clamping block 54 and the second clamping block 55. Under the action of the first spring 56 and the second spring 57, the first clamping block 54 and the second clamping block 55 partially protrude from the sliding grooves 58 to clamp the shock-absorbing plate 22. An arc-shaped guide surface 59 is formed on the sidewall of the first clamping block 54 and the second clamping block 55 near the opening of the insertion groove 53. Semi-circular filling blocks 13 are fixedly installed on the ends of the first clamping block 54 and the second clamping block 55 that are close to each other, filling the gap between the first clamping block 54 and the second clamping block 55 and the shock-absorbing plate 22.

[0053] Reference Figure 2 and Figure 3 The two adjacent shock-absorbing plates 22 are moved and inserted into the sealing block 51. The first clamping block 54 and the second clamping block 55 on the sealing block 51 clamp and fix the shock-absorbing plate 22 in the insertion groove 53. Thus, while completing the fixed installation of the shock-absorbing plate 22, the gap between the two shock-absorbing plates 22 is sealed, thereby reducing the probability of flue gas leakage in the flue 12 causing pollution to the working environment.

[0054] The working principle of this application embodiment is as follows:

[0055] A mounting frame 21 is fixed on the frame 1, and a shock-absorbing plate 22 that contacts the flue 12 is installed on the mounting frame 21. The shock-absorbing plate 22 limits the flue 12, reducing the probability of the flue 12 vibrating under the action of internal flue gas flow. The shock-absorbing plate 22 also covers the outside of the flue 12, reducing the probability of flue gas leakage.

[0056] The damping rod 23 is slidably mounted on the mounting frame 21 via the reset block 41, hydraulic damper 42 and reset spring 43. When the damping plate 22 vibrates or deforms with the flue 12, the damping rod 23 can slide along the surface of the damping plate 22, thereby absorbing the vibration or deformation of the damping plate 22, which greatly reduces the vibration amplitude of the flue 12 and reduces the probability of flue gas leakage in the flue 12.

[0057] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A waste heat boiler with anti-smoke gas side leakage, characterized in that: The system includes a frame (1), on which a furnace body (11) and a flue (12) connected to the furnace body (11) are mounted. The frame (1) is also equipped with a vibration damping device (2) for reducing the vibration amplitude of the flue (12). The vibration damping device (2) includes: Mounting frame (21), the mounting frame (21) is set on the frame (1), the flue (12) is located inside the mounting frame (21), and there are a plurality of mounting frames (21), which are evenly distributed along the length of the flue (12); The shock-absorbing plate (22) is installed on the mounting frame (21). The inner wall of the shock-absorbing plate (22) is corrugated and the inner wall of the shock-absorbing plate (22) abuts against the outer wall of the flue (12). The shock absorber (23) is slidably mounted on two adjacent mounting frames (21) and the shock absorber (23) abuts against the outer wall of the shock absorber plate (22); A reset mechanism (24) is provided on the mounting frame (21). The reset mechanism (24) is used to drive the shock absorber (23) back to its original position after the shock absorber (23) has moved. The mounting frame (21) includes a bottom rod (25), a top rod (26), and two side rods (27) installed between the bottom rod (25) and the top rod (26). The bottom rod (25) and the top rod (26) are provided with mounting holes at both ends. The side rods (27) are provided with mounting blocks (28) at both ends. The mounting blocks (28) are inserted into the mounting holes. The inner sidewall of the mounting holes is provided with elastic blocks (29). A moving gap is left between the mounting blocks (28) and the inner sidewall of the mounting holes. The elastic blocks (29) fill the moving gap. The mounting frame (21) is provided with a sealing mechanism (5) for sealing the side edges of two adjacent shock-absorbing plates (22) that are close to each other. The sealing mechanism (5) includes: A sealing block (51) is provided between two adjacent mounting frames (21). The two ends of the sealing block (51) are respectively connected to the bottom rod (25) or top rod (26) on the two adjacent mounting frames (21). The two mutually perpendicular outer walls of the sealing block (51) that are not connected to the mounting frame (21) are provided with insertion slots (53) for the shock-absorbing plate (22) to be inserted. Clamping assembly (52), which is disposed on sealing block (51) and used to clamp and fix shockproof plate (22) in insertion groove (53); The clamping assembly (52) includes: The first clamping block (54) and the second clamping block (55) are provided with sliding grooves (58) on the two opposite inner sidewalls of the insertion groove (53). The first clamping block (54) and the second clamping block (55) are respectively slidably installed on the two sliding grooves (58). The first spring (56) and the second spring (57) are respectively disposed in two sliding grooves (58) and connected to the first clamping block (54) and the second clamping block (55). Under the action of the first spring (56) and the second spring (57), the first clamping block (54) and the second clamping block (55) partially extend out of the sliding groove (58) to clamp the shock-absorbing plate (22). The first clamping block (54) and the second clamping block (55) have an arc-shaped guide surface (59) on the side wall near the opening of the insertion groove (53) at the end that protrudes from the sliding groove (58).

2. A waste heat boiler with anti-smoke gas side leakage according to claim 1, characterized in that: The reset mechanism (24) includes: The reset block (41) is vertically slidably sleeved on the side rod (27), and the shock absorber rod (23) is set on the reset block (41); A hydraulic damper (42) is mounted on the base rod (25) and connected to the reset block (41); A reset spring (43) is sleeved on a hydraulic damper (42). One end of the reset spring (43) is connected to the bottom rod (25), and the other end of the reset spring (43) is connected to the reset block (41).

3. A waste heat boiler with anti-smoke gas side leakage according to claim 1, characterized in that: The side wall of the shock absorber (23) that contacts the shock absorber plate (22) is also corrugated, and the shock absorber (23) and the side wall of the shock absorber plate (22) are fully in contact.

4. A waste heat boiler with anti-smoke gas side leakage according to claim 1, characterized in that: The first clamping block (54) and the second clamping block (55) are each provided with a semi-circular filling block (13) at one end close to each other. The filling block (13) fills the gap between the first clamping block (54), the second clamping block (55) and the shock-absorbing plate (22).

5. A waste heat boiler with anti-smoke gas side leakage according to claim 1, characterized in that: The shock-absorbing plate (22) includes an inner plate (31), an outer plate (32), and a thermal insulation cotton layer (33) disposed between the inner plate (31) and the outer plate (32). The inner plate (31) abuts against the outer wall of the flue (12). The inner plate (31) and the outer plate (32) are fixed together by screws. The inner plate (31) and the outer plate (32) are clamped together by the screws to form the thermal insulation layer.

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