Waste heat boiler capable of preventing smoke from laterally leaking

Abstract

The invention relates to the technical field of boiler equipment, in particular to a waste heat boiler capable of preventing smoke side leakage, which comprises a rack, a boiler body and a flue connected with the boiler body are arranged on the rack, and a damping device used for reducing the vibration amplitude of the flue is arranged on the rack. The mounting frame is fixed to the rack, the anti-vibration plate making contact with the flue is mounted on the mounting frame, the flue is limited through the anti-vibration plate, the probability that the flue vibrates under the flowing effect of internal flue gas is reduced, the exterior of the flue is wrapped with the anti-vibration plate, and the probability of side leakage of the flue gas is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of boiler equipment, and in particular to a waste heat boiler capable of preventing flue gas side leakage. Background Art

[0002] Waste heat boiler is a kind of equipment specially designed to recover waste heat from waste gas, waste material or waste liquid generated in industrial production process and convert it into useful energy. This kind of boiler can improve energy utilization efficiency and reduce energy waste by using this waste heat to heat water and produce steam or hot water.

[0003] In the related art, reference may be made to the Chinese invention patent with authorization announcement number CN101451703A, which discloses a furnace body of a waste heat boiler, including: a transition section flue, the transition section flue including an ascending portion and a descending portion, the top of the ascending portion being connected to the top of the descending portion; and a convection section flue, the smoke inlet of the convection section flue being connected to the lower end of the descending portion of the transition section flue and a smoke outlet being formed at the smoke outlet end of the convection section flue.

[0004] However, during the actual operation of the above boiler, the high temperature and high-speed flow of flue gas may cause equipment vibration, which in turn causes flue gas side leakage, affecting the thermal efficiency and operating stability of the boiler. Summary of the invention

[0005] In order to reduce the probability of the flue vibrating and leaking smoke due to the flow of smoke, the present application provides a waste heat boiler that prevents side leakage of smoke.

[0006] The present application provides a waste heat boiler for preventing flue gas leakage, which adopts the following technical solution:

[0007] A waste heat boiler for preventing flue gas side leakage comprises a frame, a furnace body and a flue connected to the furnace body are arranged on the frame, and a shock absorbing device for reducing the vibration amplitude of the flue is arranged on the frame, and the shock absorbing device comprises:

[0008] An installation frame, the installation frame is arranged on the frame, the flue is located in the installation frame, and a plurality of the installation frames are arranged, and the plurality of the installation frames are evenly distributed along the length direction of the flue;

[0009] An anti-vibration plate, the anti-vibration plate is arranged on the mounting frame, the inner side wall of the anti-vibration plate is arranged in a corrugated shape, and the inner side wall of the anti-vibration plate is in conflict with the outer side wall of the flue;

[0010] A shock absorbing rod, wherein the shock absorbing rod is slidably arranged on two adjacent mounting frames, and the shock absorbing rod abuts against an outer side wall of the shockproof plate;

[0011] The reset mechanism is arranged on the mounting frame, so the reset mechanism is used to drive the shock absorbing rod to move back to the original position after the shock absorbing rod moves.

[0012] By adopting the above technical scheme, a mounting frame is fixed on the frame, and a shockproof plate in contact with the flue is installed on the mounting frame. The shockproof plate limits the flue, thereby reducing the probability of the flue vibrating under the action of the internal smoke flow, and the shockproof plate also covers the outside of the flue, thereby reducing the probability of smoke side leakage. A shock-absorbing rod is slidably installed on the mounting frame through a reset mechanism. When the shockproof plate vibrates or deforms with the flue, the shock-absorbing rod can slide along the surface of the shockproof plate, thereby absorbing the vibration or deformation of the shockproof plate, thereby greatly reducing the vibration amplitude of the flue and reducing the probability of smoke side leakage in 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 rod are provided with mounting blocks, the mounting blocks are inserted into the mounting holes, an elastic block is provided on the inner side wall of the mounting hole, a moving gap is left between the mounting block and the inner side wall of the mounting hole, and the elastic block fills the moving gap.

[0014] By adopting the above technical solution, the installation frame is configured as a combination of a bottom rod, a top rod and two side rods, and elastic blocks are arranged in the installation 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, the probability of damage to the connection between the side rods and the bottom rod and the top rod under long-term vibration is also reduced, thereby increasing the overall service life of the installation frame.

[0015] Optionally, the reset mechanism includes:

[0016] A reset block, wherein the reset block is vertically slidably sleeved on the side rod, and the damping rod is arranged on the reset block;

[0017] A hydraulic damper, which is arranged on the bottom rod and connected to the reset block;

[0018] A return spring is sleeved on the 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 mounted on the side rod, and the shock-absorbing rod is installed on the reset block. When the shock-absorbing rod moves, the hydraulic damper absorbs and buffers the vibration of the shock-absorbing rod, thereby reducing the vibration amplitude. After the shock-absorbing rod finishes vibrating, the shock-absorbing rod returns to its original position under the action of the reset spring, so as to facilitate subsequent continued work.

[0020] Optionally, the side wall of the shock-absorbing rod in contact with the shock-proof plate is also configured in a corrugated shape, and the shock-absorbing rod is fully fitted with the side wall of the shock-proof plate.

[0021] By adopting the above technical solution, the side wall on which the shock-absorbing rod contacts the shock-proof plate is also configured in a corrugated shape, so that the shock-absorbing rod and the side wall of the shock-proof plate are fully fitted, thereby increasing the contact area between the shock-absorbing rod and the shock-proof plate, and enhancing the shock-absorbing effect of the shock-absorbing rod on the shock-proof plate by improving the transmission efficiency of the vibration amount between the shock-absorbing rod and the shock-proof plate.

[0022] Optionally, the installation frame is provided with a sealing mechanism for sealing the sides of two adjacent anti-vibration plates close to each other, and the sealing mechanism includes:

[0023] A sealing block, the sealing block is arranged between two adjacent mounting frames, the two ends of the sealing block are respectively connected to the bottom rods or top rods on the two adjacent mounting frames, and 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 inserting the shockproof plate;

[0024] A clamping assembly is arranged on the sealing block and is used to clamp and fix the shockproof plate in the plug-in slot.

[0025] By adopting the above technical solution, a sealing block is installed between the two installation frames, and then two adjacent shock-proof plates are inserted into the sealing block. The clamping assembly on the sealing block clamps and fixes the shock-proof plates in the plug-in grooves, thereby completing the fixed installation of the shock-proof plates and sealing the gap between the two shock-proof plates, thereby reducing the probability of smoke leakage in the flue causing pollution to the working environment.

[0026] Optionally, the clamping assembly comprises:

[0027] A first clamping block and a second clamping block, wherein two opposite inner side walls of the plug-in slot are provided with sliding grooves, and the first clamping block and the second clamping block are respectively slidably mounted on the two sliding grooves;

[0028] The first spring and the second spring are respectively arranged in two sliding grooves and connected with the first clamp block and the second clamp block. Under the action of the first spring and the second spring, the first clamp block and the second clamp block partially pass out of the sliding groove to clamp the shockproof plate.

[0029] By adopting the above technical solution, sliding grooves are opened on the two opposite inner walls of the plug-in slot, and then the first clamp block and the second clamp block are slidably installed on the two sliding grooves through the first spring and the second spring. The first clamp block and the second clamp block cooperate to clamp and fix the shockproof plate, thereby completing the fixation of the shockproof plate in the plug-in slot.

[0030] Optionally, an arc-shaped guide surface is provided on a side wall of one end of the first clamping block and the second clamping block that passes through the sliding groove and is close to the opening of the plug-in groove.

[0031] By adopting the above technical solution, an arc-shaped guide surface is provided on the side wall of one end of the first clamp block and the second clamp block passing through the sliding groove and close to the opening of the plug-in groove, so that when the anti-vibration plate is moved into the plug-in groove, the anti-vibration plate will first contact the guide surface, and the guide surface will generate a component force that drives the first clamp block and the second clamp block to move into the sliding groove, thereby eliminating the need to manually squeeze the first clamp block and the second clamp block to move into the sliding groove, simplifying the installation steps and improving work efficiency.

[0032] Optionally, a semicircular sealing block is provided on the ends 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 shockproof plate.

[0033] By adopting the above technical solution, a semicircular sealing block is installed on the end of the first clamp block and the second clamp block that are close to each other. The sealing block fills the gap between the first clamp block, the second clamp block and the corrugated shockproof plate, thereby enhancing the sealing and connection strength.

[0034] Optionally, the shockproof plate includes an inner plate, an outer plate and a thermal insulation cotton layer arranged between the inner plate and the outer plate, the inner plate is in contact with the outer wall of the flue, the inner plate and the outer plate are fixed by screws, and the inner plate and the outer plate clamp the thermal insulation surface layer under the action of the screws.

[0035] By adopting the above technical scheme, the shockproof plate is set to a structure of an inner plate, an outer plate and a thermal insulation cotton layer, thereby enhancing the structural strength of the shockproof plate. At the same time, the thermal insulation cotton layer can reduce the heat dissipation of the flue gas inside the flue, ensuring the utilization rate of the flue gas heat, and the thermal insulation surface layer can also reduce the noise generated by the vibration of the flue, reducing pollution.

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

[0037] 1. By fixing the mounting frame on the rack, installing a shockproof plate in contact with the flue on the mounting frame, the shockproof plate limits the flue, reducing the probability of the flue vibrating under the action of the internal flue gas flow, and the shockproof plate also covers the outside of the flue, reducing the probability of flue gas leakage;

[0038] 2. By slidingly installing the shock-absorbing rod on the installation frame through the reset mechanism, when the shock-absorbing plate vibrates or deforms with the flue, the shock-absorbing rod can slide along the surface of the shock-absorbing plate, thereby absorbing the vibration or deformation of the shock-absorbing plate, thereby greatly reducing the vibration amplitude of the flue and reducing the probability of side leakage of smoke in the flue;

[0039] 3. By setting the shockproof plate as a structure of inner plate, outer plate and thermal insulation cotton layer, the structural strength of the shockproof plate is enhanced. At the same time, the thermal insulation cotton layer can reduce the heat dissipation of the flue gas inside the flue, ensuring the utilization rate of the flue gas heat. The thermal insulation surface layer can also reduce the noise generated by the vibration of the flue and reduce pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a three-dimensional structural schematic diagram of the present application;

[0041] Figure 2 is a schematic diagram of the structure of the shock absorbing device in the present application, wherein the side wall of the top rod is cut away;

[0042] Figure 3 is a schematic structural diagram of the sealing mechanism in the present application, in which the side wall of the sealing block is cut away.

[0043] 1. Frame; 11. Furnace body; 12. Flue; 13. Filling block; 2. Shock-absorbing device; 21. Mounting frame; 22. Shock-proof plate; 23. Shock-absorbing 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 cotton layer; 41. Reset block; 42. Hydraulic damper; 43. Reset spring; 5. Sealing mechanism; 51. Sealing block; 52. Clamping assembly; 53. Plug-in slot; 54. First clamping block; 55. Second clamping block; 56. First spring; 57. Second spring; 58. Sliding slot; 59. Guide surface. DETAILED DESCRIPTION

[0044] The following is combined with Figure 1 -Attached Figure 3 This application is described in further detail.

[0045] The embodiment of the present application discloses a waste heat boiler that prevents flue gas side leakage.

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

[0047] Reference Figure 1 and Figure 2The shock absorbing device 2 includes a mounting frame 21, a shockproof plate 22, a shock absorbing rod 23 and a reset mechanism 24. The mounting frame 21 is fixedly mounted on the frame 1. There are a plurality of mounting frames 21, and the plurality of mounting frames 21 are evenly distributed along the length direction 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 contacts the lower surface of the flue 12. Vertical mounting holes are provided at both ends of the bottom rod 25 and the top rod 26, and mounting blocks 28 are fixedly mounted at both ends of the side rod 27, and the mounting blocks 28 are inserted into the mounting holes. An elastic block 29 is fixedly mounted on the inner side wall of the mounting hole, and a moving gap is left between the mounting block 28 and the inner side wall of the mounting hole, and the elastic block 29 fills the moving gap. The elastic block 29 buffers the displacement of the two side bars 27 caused by vibration, and also reduces the probability of loosening and damage of the connection between the side bars 27 and the bottom bar 25 and the top bar 26 under long-term vibration, thereby increasing the overall service life of the mounting frame 21.

[0048] Reference Figure 2 and Figure 3 The anti-vibration plate 22 is fixedly installed between two adjacent mounting frames 21 and contacts the outer wall of the flue 12. The anti-vibration plate 22 includes an inner plate 31, an outer plate 32, and a heat-insulating cotton layer 33 laid between the inner plate 31 and the outer plate 32. The inner plate 31 contacts the outer wall of the flue 12. The inner plate 31 and the outer plate 32 are fixed by screws, and the inner plate 31 and the outer plate 32 clamp the heat-insulating surface layer under the action of the screws. The inner plate 31 and the outer plate 32 are both arranged in a corrugated shape.

[0049] Reference Figure 2 and Figure 3 , the shock absorber rod 23 is vertically slidably mounted on the side rod 27 through 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 rod 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 rod 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 is 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 where the shock absorbing rod 23 contacts the shockproof plate 22 is also arranged in a corrugated shape, and the shock absorbing rod 23 is fully fitted with the outer wall of the outer plate 32. When the vibration of the flue 12 drives the shockproof plate 22 to vibrate, the vibration of the shockproof plate 22 drives the shock absorbing rod 23 to move, and the hydraulic damper 42 absorbs and buffers the vibration of the shock absorbing rod 23, thereby reducing the vibration amplitude. After the vibration of the shock absorbing rod 23 is completed, the shock absorbing rod 23 returns to its original position under the action of the return spring 43, so as to facilitate the subsequent continued work.

[0051] Reference Figure 2 and Figure 3 The installation frame 21 is provided with a sealing mechanism 5 for sealing the side edges of two adjacent anti-vibration 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 installation frames 21. The two ends of the sealing block 51 are respectively connected to the bottom rod 25 or the top rod 26 on the two adjacent installation frames 21. The two outer perpendicular walls of the sealing block 51 that are not connected to the installation frame 21 are provided with plug-in slots 53 for inserting the anti-vibration plates 22. The clamping assembly 52 is provided on the sealing block 51 and is used to clamp and fix the anti-vibration plates 22 in the plug-in 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 provided on the two opposite inner side walls of the plug-in slot 53, and 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 fixedly installed 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 pass out of the sliding groove 58 to clamp the shockproof plate 22. A circular arc-shaped guide surface 59 is provided on the side wall of one side of the opening of the plug-in slot 53 near the end of the first clamping block 54 and the second clamping block 55 passing out of the sliding groove 58. A semicircular filling block 13 is fixedly installed on the end of the first clamping block 54 and the second clamping block 55 close to each other, and the filling block 13 fills the gap between the first clamping block 54 and the second clamping block 55 and the shockproof plate 22.

[0053] Reference Figure 2 and Figure 3 , move two adjacent shockproof plates 22 and insert them into the sealing block 51, and the first clamping block 54 and the second clamping block 55 on the sealing block 51 clamp and fix the shockproof plates 22 in the insertion groove 53, thereby completing the fixed installation of the shockproof plates 22 and sealing the gap between the two shockproof plates 22, thereby reducing the probability of smoke leakage in the flue 12 causing pollution to the working environment.

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

[0055] A mounting frame 21 is fixed on the frame 1, and a shockproof plate 22 in contact with the flue 12 is installed on the mounting frame 21. The shockproof plate 22 limits the flue 12, reducing the probability of the flue 12 vibrating under the action of internal smoke flow, and the shockproof plate 22 also covers the outside of the flue 12, reducing the probability of smoke side leakage.

[0056] The shock absorbing rod 23 is slidably installed on the installation frame 21 through the reset block 41, the hydraulic damper 42 and the reset spring 43. When the shock-proof plate 22 vibrates or deforms with the flue 12, the shock-absorbing rod 23 can slide along the surface of the shock-proof plate 22, thereby absorbing the vibration or deformation of the shock-proof plate 22, thereby greatly reducing the vibration amplitude of the flue 12 and reducing the probability of side leakage of smoke in the flue 12.

[0057] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A waste heat boiler for preventing flue gas leakage, characterized in that: The invention comprises a frame (1), a furnace body (11) and a flue (12) connected to the furnace body (11) being arranged on the frame (1), a shock absorbing device (2) for reducing the vibration amplitude of the flue (12) being arranged on the frame (1), and the shock absorbing device (2) comprising: An installation frame (21), the installation frame (21) being arranged on the frame (1), the flue (12) being located in the installation frame (21), a plurality of the installation frames (21) being arranged, and the plurality of the installation frames (21) being evenly distributed along the length direction of the flue (12); A shockproof plate (22), the shockproof plate (22) being arranged on the mounting frame (21), the inner side wall of the shockproof plate (22) being arranged in a corrugated shape, and the inner side wall of the shockproof plate (22) being in contact with the outer side wall of the flue (12); A shock absorbing rod (23), wherein the shock absorbing rod (23) is slidably arranged on two adjacent mounting frames (21), and the shock absorbing rod (23) abuts against an outer side wall of the shockproof plate (22); A reset mechanism (24), wherein the reset mechanism (24) is arranged on the mounting frame (21), and the reset mechanism (24) is used to drive the shock absorbing rod (23) to move back to its original position after the shock absorbing rod (23) moves.

2. A waste heat boiler for preventing flue gas side leakage according to claim 1, characterized in that: The mounting frame (21) comprises a bottom rod (25), a top rod (26) and two side rods (27) mounted between the bottom rod (25) and the top rod (26); both ends of the bottom rod (25) and the top rod (26) are provided with mounting holes; both ends of the side rods (27) are provided with mounting blocks (28); the mounting blocks (28) are inserted into the mounting holes; an elastic block (29) is provided on the inner side wall of the mounting hole; a moving gap is left between the mounting block (28) and the inner side wall of the mounting hole; the elastic block (29) fills the moving gap.

3. A waste heat boiler for preventing flue gas side leakage according to claim 2, characterized in that: The reset mechanism (24) comprises: A reset block (41), wherein the reset block (41) is vertically slidably sleeved on the side rod (27), and the damping rod (23) is arranged on the reset block (41); A hydraulic damper (42), wherein the hydraulic damper (42) is arranged on the bottom rod (25) and connected to the reset block (41); A return spring (43), wherein the return spring (43) is sleeved on the hydraulic damper (42), one end of the return spring (43) is connected to the bottom rod (25), and the other end of the return spring (43) is connected to the return block (41).

4. A waste heat boiler for preventing flue gas side leakage according to claim 1, characterized in that: The side wall of the shock absorbing rod (23) in contact with the shockproof plate (22) is also arranged in a corrugated shape, and the shock absorbing rod (23) is fully fitted with the side wall of the shockproof plate (22).

5. The waste heat boiler for preventing flue gas side leakage according to claim 1, characterized in that: The installation frame (21) is provided with a sealing mechanism (5) for sealing the side edges of two adjacent anti-vibration plates (22) close to each other, and the sealing mechanism (5) comprises: A sealing block (51), the sealing block (51) being arranged between two adjacent mounting frames (21), the two ends of the sealing block (51) being respectively connected to the bottom rods (25) or the top rods (26) on the two adjacent mounting frames (21), and the two mutually perpendicular outer side walls of the sealing block (51) not connected to the mounting frames (21) are both provided with insertion grooves (53) for inserting the shockproof plate (22); A clamping assembly (52) is arranged on the sealing block (51) and is used to clamp and fix the shockproof plate (22) in the plug-in groove (53).

6. A waste heat boiler for preventing flue gas side leakage according to claim 5, characterized in that: The clamping assembly (52) comprises: A first clamping block (54) and a second clamping block (55), wherein two opposite inner side walls of the plug-in slot (53) are each provided with a sliding slot (58), and the first clamping block (54) and the second clamping block (55) are respectively slidably mounted on the two sliding slots (58); A first spring (56) and a second spring (57), wherein the first spring (56) and the second spring (57) are respectively arranged 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 pass out of the sliding groove (58) to clamp the shockproof plate (22).

7. A waste heat boiler for preventing flue gas side leakage according to claim 6, characterized in that: An arc-shaped guide surface (59) is provided on a side wall of one end of the first clamping block (54) and the second clamping block (55) that passes out of the sliding groove (58) and is close to the opening of the plug-in groove (53).

8. The waste heat boiler for preventing flue gas side leakage according to claim 6, characterized in that: A semicircular filling block (13) is provided on one end of the first clamping block (54) and the second clamping block (55) that are close to each other, and the filling block (13) fills the gap between the first clamping block (54), the second clamping block (55) and the shockproof plate (22).

9. The waste heat boiler for preventing flue gas side leakage according to claim 1, characterized in that: The shockproof plate (22) comprises an inner plate (31), an outer plate (32) and a heat-insulating cotton layer (33) arranged between the inner plate (31) and the outer plate (32); the inner plate (31) contacts the outer wall of the flue (12); the inner plate (31) and the outer plate (32) are fixed by screws; the inner plate (31) and the outer plate (32) clamp the heat-insulating surface layer under the action of the screws.

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