Boiler hot gas recycling device

Abstract

The utility model discloses a boiler hot gas recycling device, and relates to the technical field of hot gas recycling devices. The device comprises a heat preservation barrel, wherein a uniform distribution mechanism and an anti-backflow mechanism are arranged on the heat preservation barrel; a boiler is arranged on the left side of the heat preservation barrel, a connecting pipe is arranged on the top of the heat preservation barrel in a communicating mode, the tail end of the connecting pipe is communicated with the boiler, the uniform distribution mechanism comprises a circular ring arranged on the top of the heat preservation barrel, and a plurality of connecting blocks are fixedly connected to the top of the circular ring; the tops of the multiple connecting blocks are fixedly connected with the heat preservation barrel. Through the arrangement of the uniform distribution mechanism, the problems that in the using process of an existing boiler hot gas recycling device, hot gas is inconvenient to uniformly distribute around a heated water body, the heat transfer rate is in direct proportion to the temperature difference, and the temperature difference of partial areas is too large or too small due to uneven temperature distribution, and the heat transfer rate is too high are solved. And therefore, the problems of excessive local heat exchange and insufficient local heat exchange are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hot gas recovery and utilization devices, in particular to a boiler hot gas recovery and utilization device. Background Art

[0002] With the acceleration of the global industrialization process, energy consumption continues to increase, and the energy crisis has gradually become prominent. Boilers, as equipment widely used in industrial production and heating fields, consume huge amounts of energy. During the operation of traditional boilers, a large amount of hot air is directly discharged into the atmosphere. These hot gases contain considerable heat. According to statistics, the heat loss carried away by boiler flue gas that is not recycled can reach about 10%-30%. This heat waste not only increases energy costs, but also does not conform to the development trend of energy conservation and emission reduction. In order to cope with the energy crisis and improve energy utilization efficiency, recycling boiler hot air has become an inevitable choice.

[0003] However, during the use of existing boiler heat recovery and utilization devices, the hot gas is not easy to be evenly distributed around the heated water body. The heat transfer rate is proportional to the temperature difference, and the uneven temperature distribution makes the temperature difference in some areas too large or too small, resulting in excessive local heat exchange and insufficient local heat exchange. Utility Model Content

[0004] The purpose of the utility model is to provide a boiler heat recovery and utilization device. By setting a uniform distribution mechanism, the problem of the existing boiler heat recovery and utilization device in which the hot gas is not easy to be evenly distributed around the heated water body during use, the heat transfer rate is proportional to the temperature difference, and the uneven temperature distribution makes the temperature difference in some areas too large or too small, thereby causing excessive local heat exchange and insufficient local heat exchange.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model is a boiler heat recovery and utilization device, comprising a heat preservation barrel, wherein the heat preservation barrel is provided with a uniform distribution mechanism and a backflow prevention mechanism;

[0007] A boiler is provided on the left side of the insulation barrel, and a connecting pipe is provided on the top of the insulation barrel, and the end of the connecting pipe is connected to the boiler. The uniform distribution mechanism includes a circular ring provided on the top of the insulation barrel, and a plurality of connecting blocks are fixedly connected to the top of the circular ring, and the tops of the plurality of connecting blocks are fixedly connected to the insulation barrel. A spiral water inlet pipe is provided in the insulation barrel, and the inlet and outlet of the spiral water inlet pipe extend to the front side of the insulation barrel, and the water outlet of the spiral water inlet pipe extends to the rear side of the insulation barrel. A rotating shaft is rotatably connected to the inner wall of the top of the insulation barrel.

[0008] Furthermore, a disc is fixedly connected to the outer wall of the rotating shaft, and a plurality of fan blades are fixedly connected to the outer wall of the disc.

[0009] Furthermore, the anti-backflow mechanism includes an anti-backflow component 1 and an anti-backflow component 2, the anti-backflow component 1 includes a filter plate fixedly connected to the inner wall of the connecting pipe, and a cross support frame is fixedly connected to the inner wall of the connecting pipe.

[0010] Furthermore, an adapting ring is fixedly connected to the inner wall of the connecting pipe, and a piston is slidably connected to the inner wall of the adapting ring.

[0011] Furthermore, the second anti-backflow component includes a telescopic rod fixedly connected to the left side of the cross support frame, and the left side of the telescopic rod is fixedly connected to the piston.

[0012] Furthermore, a spring is sleeved on the outer wall of the telescopic rod, the left side of the spring is fixedly connected to the piston, and the right side of the spring is fixedly connected to the cross support frame.

[0013] Furthermore, two fixing rings are fixedly connected to the outer walls of the heat preservation barrel and the boiler, and an air outlet pipe is provided at the bottom of the heat preservation barrel.

[0014] The utility model has the following beneficial effects:

[0015] 1. By setting up a uniform distribution mechanism, when the gas flows into the insulation barrel, the gas will blow the fan blades on the disc to rotate under the action of the rotating shaft. Due to the rotation of the fan blades, the gas will be disrupted and redistributed in a relatively uniform state, and evenly act on the spiral water inlet pipe to preheat the water in the spiral water inlet pipe, so that all parts of the spiral water inlet pipe can be heated more evenly, and the temperature difference around the spiral water inlet pipe can be kept in a relatively stable and appropriate range, so that the amount can be continuously and efficiently transferred from the hot gas to the water in the pipe, thereby improving the preheating efficiency;

[0016] 2. By setting up an anti-backflow mechanism, when the boiler generates hot gas, the hot gas will increase the air pressure in the boiler, and this air pressure will push the piston to the right and create a gap between the piston and the adapter ring. In the process of the piston moving to the right, the telescopic rod and the spring will be compressed accordingly, and the spring will gradually undergo elastic deformation and generate elastic force during the compression process. At this time, the hot gas will flow into the insulation barrel from the gap between the adapter ring and the piston. As the hot gas flows in, when the air pressure in the boiler is not enough to compress the spring, the piston will be reset under the action of the elastic force of the spring and cooperate with the adapter ring again, so that the boiler is in a sealed environment again, avoiding the backflow of hot gas, so that the backflow of hot gas can be effectively prevented, and the interference of the backflow of hot gas on the normal operation of the boiler is avoided, ensuring that the hot gas flows in the predetermined direction, maintaining the stability of the system, and enabling the boiler system and the heat recovery system to operate in an orderly manner.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the front side cross-sectional structure of the present invention;

[0021] Figure 3 This is a partial cross-sectional structural diagram of the uniform distribution mechanism of the utility model;

[0022] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure of A in the middle;

[0023] Figure 5 For this utility model Figure 2 Schematic diagram of the enlarged structure of B.

[0024] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0025] 1. Thermostatic drum; 101. Boiler; 102. Fixing ring; 103. Connecting pipe; 104. Exhaust pipe; 2. Uniform distribution mechanism; 201. Ring; 202. Connecting block; 203. Spiral water inlet pipe; 204. Rotating shaft; 205. Disc; 206. Fan blade; 3. Anti-backflow mechanism; 31. Anti-backflow component 1; 311. Filter plate; 312. Cross support frame; 313. Adapter ring; 314. Piston; 32. Anti-backflow component 2; 321. Telescopic rod; 322. Spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-5 As shown, the utility model is a boiler heat recovery and utilization device, including an insulation barrel 1, which is provided with a uniform distribution mechanism 2 and an anti-backflow mechanism 3. A boiler 101 is provided on the left side of the insulation barrel 1, and a connecting pipe 103 is provided on the top of the insulation barrel 1. The end of the connecting pipe 103 is connected to the boiler 101. The uniform distribution mechanism 2 includes a ring 201 provided on the top of the insulation barrel 1, and a plurality of connecting blocks 202 are fixedly connected to the top of the ring 201. The tops of the plurality of connecting blocks 202 are all fixedly connected to the insulation barrel 1. A spiral water inlet pipe 203 is provided in the insulation barrel 1, and the inlet and outlet of the spiral water inlet pipe 203 are The mouth extends to the front side of the heat preservation barrel 1, and the water outlet of the spiral water inlet pipe 203 extends to the rear side of the heat preservation barrel 1. A rotating shaft 204 is rotatably connected to the inner wall of the top of the heat preservation barrel 1, and a disk 205 is fixedly connected to the outer wall of the rotating shaft 204. A plurality of fan blades 206 are fixedly connected to the outer wall of the disk 205. By setting up a uniform distribution mechanism 2, various parts of the spiral water inlet pipe 203 can be heated more evenly, and the temperature difference around the spiral water inlet pipe 203 can be maintained in a relatively stable and appropriate range, so that the amount can be continuously and efficiently transferred from the hot air to the water in the pipe, thereby improving the preheating efficiency.

[0028] The anti-backflow mechanism 3 includes an anti-backflow component 1 31 and an anti-backflow component 2 32. The anti-backflow component 1 31 includes a filter plate 311 fixedly connected to the inner wall of the connecting pipe 103, a cross support frame 312 fixedly connected to the inner wall of the connecting pipe 103, an adaptor ring 313 fixedly connected to the inner wall of the connecting pipe 103, and a piston 314 slidably connected to the inner wall of the adaptor ring 313. The anti-backflow component 2 32 includes a telescopic rod 321 fixedly connected to the left side of the cross support frame 312, the left side of the telescopic rod 321 is fixedly connected to the piston 314, and the outer wall of the telescopic rod 321 is sleeved with Spring 322, the left side of the spring 322 is fixedly connected to the piston 314, and the right side of the spring 322 is fixedly connected to the cross support frame 312. Two fixing rings 102 are fixedly connected to the outer walls of the insulation barrel 1 and the boiler 101. The bottom of the insulation barrel 1 is connected to the exhaust pipe 104. By setting up an anti-backflow mechanism 3, the backflow of hot gas can be effectively prevented, and the interference of the backflow of hot gas on the normal operation of the boiler 101 is avoided, ensuring that the hot gas flows in a predetermined direction, maintaining the stability of the system, and enabling the boiler 101 system and the heat recovery system to operate in an orderly manner.

[0029] A specific application of this embodiment is as follows: when in use, first place the device in the corresponding position, connect the water inlet of the spiral water inlet pipe 203 to the water pump, and guide water out through the water outlet of the spiral water inlet pipe 203. When the boiler 101 generates hot air, the hot air will increase the air pressure in the boiler 101, and the air pressure will push the piston 314 to move to the right, and a gap will be generated between the piston 314 and the adapter ring 313. In the process of the piston 314 moving to the right, the telescopic rod 321 and the spring 322 will be compressed accordingly, and the spring 322 will gradually undergo elastic deformation and generate elastic force during the compression process. At this time, the hot air will pass through the gap between the adapter ring 313 and the piston 314. The gap flows into the heat preservation barrel 1, and with the inflow of hot air, when the air pressure in the boiler 101 is not enough to compress the spring 322, the piston 314 will be reset under the action of the elastic force of the spring 322, and cooperate with the adapter ring 313 again, so that the boiler 101 is in a sealed environment again to avoid the backflow of hot air. When the gas flows into the heat preservation barrel 1, the gas will blow the fan blades 206 on the disc 205 to rotate under the action of the rotating shaft 204, and due to the rotation of the fan blades 206, the gas will be disrupted and redistributed in a relatively uniform state, and evenly act on the spiral water inlet pipe 203 to preheat the water in the spiral water inlet pipe 203.

[0030] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0031] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A boiler heat recovery and utilization device, comprising a heat preservation barrel (1), characterized in that: The heat preservation barrel (1) is provided with a uniform distribution mechanism (2) and a backflow prevention mechanism (3); A boiler (101) is provided on the left side of the heat preservation barrel (1), and a connecting pipe (103) is provided on the top of the heat preservation barrel (1), and the end of the connecting pipe (103) is connected to the boiler (101). The uniform distribution mechanism (2) comprises a ring (201) provided on the top of the heat preservation barrel (1), and a plurality of connecting blocks (202) are fixedly connected to the top of the ring (201), and the tops of the plurality of connecting blocks (202) are fixedly connected to the heat preservation barrel (1). A spiral water inlet pipe (203) is provided in the heat preservation barrel (1), and the inlet and outlet of the spiral water inlet pipe (203) extend to the front side of the heat preservation barrel (1), and the outlet of the spiral water inlet pipe (203) extends to the rear side of the heat preservation barrel (1). A rotating shaft (204) is rotatably connected to the inner wall of the top of the heat preservation barrel (1).

2. The boiler heat recovery and utilization device according to claim 1, characterized in that: A disc (205) is fixedly connected to the outer wall of the rotating shaft (204), and a plurality of fan blades (206) are fixedly connected to the outer wall of the disc (205).

3. The boiler heat recovery and utilization device according to claim 2, characterized in that: The anti-backflow mechanism (3) comprises an anti-backflow component 1 (31) and an anti-backflow component 2 (32), wherein the anti-backflow component 1 (31) comprises a filter plate (311) fixedly connected to the inner wall of the connecting pipe (103), and a cross support frame (312) is fixedly connected to the inner wall of the connecting pipe (103).

4. The boiler heat recovery and utilization device according to claim 3, characterized in that: An adapting ring (313) is fixedly connected to the inner wall of the connecting tube (103), and a piston (314) is slidably connected to the inner wall of the adapting ring (313).

5. The boiler heat recovery and utilization device according to claim 4, characterized in that: The second anti-backflow component (32) includes a telescopic rod (321) fixedly connected to the left side of the cross support frame (312), and the left side of the telescopic rod (321) is fixedly connected to the piston (314).

6. The boiler heat recovery and utilization device according to claim 5, characterized in that: A spring (322) is sleeved on the outer wall of the telescopic rod (321), the left side of the spring (322) is fixedly connected to the piston (314), and the right side of the spring (322) is fixedly connected to the cross support frame (312).

7. The boiler heat recovery and utilization device according to claim 6, characterized in that: Two fixing rings (102) are fixedly connected to the outer walls of the heat preservation barrel (1) and the boiler (101), and an air outlet pipe (104) is provided at the bottom of the heat preservation barrel (1).

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