Combined waste heat boiler

Abstract

The utility model discloses a combined type waste heat boiler which is characterized in that a smoke pipe is detachably connected to the side wall of the top, close to one end, of the boiler, a concentration cover is detachably connected to one end, away from the boiler, of the smoke pipe in a sleeved mode, and a recovery pipe is detachably connected to the top end of the concentration cover; one end, far away from the concentration cover, of the recovery pipe is detachably connected with a purification pipe, and the inner ring wall of the recovery pipe is detachably connected with a spiral heated pipe in an embedded mode. The heated water can be conveyed out for preheating the boiler and the like, waste of high-temperature flue gas is avoided, the purification pipe is connected to the recycling pipe, the flue gas can sequentially penetrate through the purification filter plates in the purification pipe when entering the purification pipe, and therefore impurities in the flue gas can be effectively filtered out, and the waste of the flue gas is avoided. And meanwhile, the flue gas can be deeply purified through the purification filter material filled in the purification filter plate.

Description

Technical Field

[0001] This utility model relates to the technical field of boiler waste heat utilization equipment, specifically to a combined waste heat boiler. Background Technology

[0002] A boiler is a functional device used primarily as a power output and heat source. It heats water inside the boiler to produce steam, which drives an impeller to rotate, thus generating electricity. There are many types of boilers available today, and they can be used in many fields. The modular boiler is one such type, as it is more efficient and has a wider range of applications.

[0003] However, all boilers produce flue gas during operation. This flue gas is high-temperature and contains many substances. Directly releasing it into the atmosphere will damage the atmospheric environment. Furthermore, the high-temperature flue gas can be utilized, and direct discharge will result in a waste of resources. Therefore, a combined waste heat boiler is proposed. Utility Model Content

[0004] The technical solution adopted by this utility model to solve the technical problem is: a combined waste heat boiler, including a boiler, a flue pipe detachably connected to the top side wall of the boiler near one end, a central hood detachably sleeved at the end of the flue pipe away from the boiler, a recovery pipe detachably connected to the top of the central hood, a purification pipe detachably connected to the end of the recovery pipe away from the central hood, and a spiral heating tube detachably embedded in the inner wall of the recovery pipe.

[0005] As a preferred technical solution of this utility model, the side walls near both ends of the recovery tube are connected to external pipes, and the two external pipes are detachably connected to both ends of the spiral heating tube through one end extending into the recovery tube.

[0006] As a preferred technical solution of this utility model, the centralized cover is a conical structure, and the inner wall of the recycling pipe is uniformly and detachably connected with guide plates. The guide plates are inclined upwards, and connecting columns are fixedly connected between every two guide plates and near the two side edges. The shape of the guide plates is in communication with the inside of the recycling pipe and fits against the inner wall of the recycling pipe. One end of the guide plate leaves a 3cm gap with the inner wall of the recycling pipe.

[0007] As a preferred technical solution of this utility model, the purification tube is a hollow cylindrical structure, and the inner wall of the purification tube is uniformly provided with slots. The slots are annular structures, and each slot can be detachably connected to a purification filter plate. The filter plate has filter holes that gradually increase in size from top to bottom.

[0008] As a preferred technical solution of this utility model, each of the purification filter plates has a hollow structure and is filled with different purification filter materials. The bottom end of the purification tube has a conical structure, and a sealing ring is fixedly connected to the side wall of the end of the purification tube near the recovery tube.

[0009] The present invention has the following advantages: the heat of the flue gas entering it can be absorbed by the established recovery pipe, and the water in the spiral heating pipe is heated by the high temperature of the flue gas, so as to realize the secondary use of heat. The heated water will be transported out for use in preheating the boiler, etc., thus avoiding the waste of high temperature flue gas.

[0010] A purification pipe is connected to the recovery pipe. When the flue gas enters the purification pipe, it will pass through the purification filter plates in the purification pipe in sequence. This can effectively filter out impurities in the flue gas. At the same time, the purification filter material filled in the purification filter plates can deeply purify the flue gas, thus avoiding the flue gas from damaging the atmosphere. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural schematic diagram of a preferred embodiment of the present invention;

[0012] Figure 2 This is a three-dimensional structural diagram of the recycling tube according to a preferred embodiment of the present invention;

[0013] Figure 3 This is a schematic diagram of the three-dimensional structure of a purification pipe in a preferred embodiment of the present invention.

[0014] Explanation of reference numerals in the attached drawings: 1. Boiler; 2. Smoke pipe; 3. Central hood; 4. Recovery pipe; 5. External pipe; 6. Purification pipe; 7. Spiral heating pipe; 8. Guide plate; 9. Connecting column; 10. Slot; 11. Purification filter plate. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Please refer to the following: Figure 1-3 This utility model discloses a combined waste heat boiler, including a boiler 1. A flue pipe 2 is detachably connected to the top side wall of the boiler 1 near one end. A central hood 3 is detachably sleeved at the end of the flue pipe 2 away from the boiler 1. A recovery pipe 4 is detachably connected to the top of the central hood 3. A purification pipe 6 is detachably connected to the end of the recovery pipe 4 away from the central hood 3. A spiral heating pipe 7 is detachably embedded in the inner wall of the recovery pipe 4.

[0017] The side walls near both ends of the recovery pipe 4 are connected with external pipes 5. The two external pipes 5 are detachably connected to the two ends of the spiral heating pipe 7 through one end extending into the recovery pipe 4. The central cover 3 has a conical structure. The inner wall of the recovery pipe 4 is detachably connected with guide plates 8. The guide plates 8 have an upward inclined structure. Between every two guide plates 8 and near the two side edges, there are fixed connecting columns 9. The shape of the guide plates 8 is consistent with the inside of the recovery pipe 4 and fits against the inner wall of the recovery pipe 4. One end of the guide plate 8 leaves a 3cm gap with the inner wall of the recovery pipe 4.

[0018] The technical effects of this solution are as follows: Connecting the centralized hood 3 to the flue pipe 2 concentrates the discharged flue gas, ensuring it smoothly enters the recovery pipe 4. The guide plate 8 increases the residence time of the flue gas in the recovery pipe 4 and evenly distributes the flue gas within it. Water is pre-injected into the spiral heating pipe 7 through the external pipe 5, absorbing the high temperature from the flue gas to heat the water in the spiral heating pipe 7. This achieves heat energy recovery and utilization, preventing waste. The heated water is discharged from another external pipe 5 for reuse. Through these steps, the function of flue gas heat energy recovery is achieved, resulting in energy savings.

[0019] The purification tube 6 is a hollow cylindrical structure. The inner wall of the purification tube 6 is evenly provided with slots 10. The slots 10 are annular structures. Each slot 10 is detachably connected to a purification filter plate 11. The filter holes of the purification filter plate 11 gradually increase in size from top to bottom. Each purification filter plate 11 is hollow and filled with different purification filter materials. The bottom end of the purification tube 6 is a conical structure. A sealing ring is fixedly connected to the side wall of the end of the purification tube 6 near the recovery tube 4.

[0020] The technical effect of this solution is as follows: by setting up a purification pipe 6 and connecting a purification filter plate 11 inside the purification pipe 6, the flue gas entering the purification pipe 6 can be filtered. Furthermore, the purification filter material filled in the purification filter plate 11 can perform deep treatment of the flue gas, reducing the harmful substances in the flue gas. Moreover, the temperature of the flue gas will be reduced to a suitable range during the heat absorption and transportation process, avoiding the impact of high-temperature flue gas on the atmosphere.

[0021] Specifically, in use, the concentrator 3 is connected to the flue pipe 2. The flue gas enters the concentrator 3 through the flue pipe 2 and is then concentrated and sent into the recovery pipe 4. After entering the recovery pipe 4, the flue gas flows upward along the guide plates 8. Multiple guide plates 8 are set up to intersect each other, which realizes the function of flue gas circulating in the recovery pipe 4. This ensures that the heat in the flue gas is evenly distributed in the recovery pipe 4, which can heat the water in the spiral heating pipe 7, thereby realizing the function of heat recovery. The heated water is discharged through the outer pipe 5 for secondary use, while the flue gas continues to rise. When the flue gas enters the purification pipe 6, it passes through the purification filter plate 11 in sequence. The purification filter plate 11 can filter solid particles, and the filter material filled in the purification filter plate 11 can perform deep treatment of the flue gas, thereby reducing the temperature and substances in the flue gas and preventing the flue gas from damaging the atmosphere.

[0022] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

[0023] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A combined waste heat boiler, comprising a boiler (1), characterized in that, The boiler (1) has a detachable flue pipe (2) connected to the top side wall near one end. The end of the flue pipe (2) away from the boiler (1) is detachably fitted with a central hood (3). The top of the central hood (3) is detachably connected with a recovery pipe (4). The end of the recovery pipe (4) away from the central hood (3) is detachably connected with a purification pipe (6). The inner wall of the recovery pipe (4) is detachably inlaid with a spiral heating pipe (7).

2. The combined waste heat boiler as described in claim 1, characterized in that, The side walls near both ends of the recovery pipe (4) are connected to external pipes (5), and the two external pipes (5) are detachably connected to both ends of the spiral heating pipe (7) through one end extending into the recovery pipe (4).

3. A combined waste heat boiler as described in claim 1, characterized in that, The central cover (3) has a conical structure. The inner wall of the recycling pipe (4) is uniformly and detachably connected with guide plates (8). The guide plates (8) have an upward inclined structure. Connecting columns (9) are fixedly connected between every two guide plates (8) and near the two side edges. The shape of the guide plates (8) is connected to the inside of the recycling pipe (4) and fits against the inner wall of the recycling pipe (4). One end of the guide plate (8) leaves a 3cm gap with the inner wall of the recycling pipe (4).

4. A combined waste heat boiler as described in claim 1, characterized in that, The purification tube (6) is a hollow cylindrical structure. The inner wall of the purification tube (6) is evenly provided with slots (10). The slots (10) are annular structures. Each slot (10) can be detachably connected to a purification filter plate (11). The filter holes of the purification filter plate (11) gradually increase in size from top to bottom.

5. A combined waste heat boiler as described in claim 4, characterized in that, Each of the purification filter plates (11) is hollow and filled with different purification filter materials. The bottom end of the purification tube (6) is tapered. A sealing ring is fixedly connected to the side wall of the end of the purification tube (6) near the recovery tube (4).

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