Waste heat recycling equipment of steam boiler

Abstract

The utility model relates to the technical field of waste heat recycling, and discloses waste heat recycling equipment of a steam boiler, which comprises a heat recovery device main body, a flue gas inlet, a water pipe, a connecting pipe I, a water inlet, a connecting pipe II, a water outlet and the like, the middle of the rotating shaft is fixedly sleeved with fan blades. Flue gas is utilized to blow the fan blades to rotate, so that the fan blades drive the rotating shaft to rotate, then reciprocating threads on the rotating shaft are matched with the sleeve, the reciprocating magnetic sliding block is promoted to do reciprocating motion in the sleeve, the electromagnetic effect is generated between the reciprocating magnetic sliding block and the electromagnetic coil, and therefore the electromagnetic coil is promoted to generate current; the output end of the electromagnetic coil is connected with the input end of the storage battery through the wire, so that current generated by the electromagnetic coil can be transmitted into the storage battery and stored, and the utilization rate of waste heat is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat reuse, in particular to a waste heat reuse device for a steam boiler. Background Technique

[0002] A boiler is an energy converter that uses the heat energy released by fuel combustion or other heat energy to heat working medium water or other fluids to a certain parameter. It is mostly used in thermal power plants, ships, locomotives and industrial and mining enterprises. The boiler mainly operates by burning coal. With the strong development of energy conservation and emission reduction in society, a waste heat reuse device will be set on the boiler to improve the utilization rate of waste heat in the furnace.

[0003] At present, the existing waste heat reuse devices for boilers mainly use the flue gas with heat generated by the boiler. By allowing the flue gas to enter the interior of the waste heat reuse device, the water inside the water pipe is heated to ensure the reuse of heat. However, its heat method is too single, resulting in greater limitations in heat reuse. Secondly, the flue gas is used to heat the water pipe, and the flue gas is mainly formed by the combustion of coal inside the boiler. A large amount of coking substances are contained in the flue gas. With long-term accumulation, a large amount of dust and the like will adhere to the outer surface of the water pipe, resulting in a reduction in the heating effect of the flue gas on the water pipe, thereby causing a decrease in the utilization rate of waste heat. Summary of the Utility Model

[0004] In view of the deficiencies of the existing heat reuse devices, the utility model provides a waste heat reuse device for a steam boiler, which has the advantages of improving the utilization rate of heat reuse, storing the excess current by using a storage battery, and then scraping off the dust and the like adhering to the outer surface of the water pipe to improve the heat receiving effect of the water pipe, and solves the technical problems such as low utilization rate of waste heat reuse.

[0005] The utility model provides the following technical solutions: A waste heat reuse device for a steam boiler, including the main body of the heat recovery device, and further including:

[0006] A flue gas inlet, fixedly arranged in the middle of the right end face of the main body of the heat recovery device. A flue gas outlet is fixedly arranged at the left part of the top surface of the main body of the heat recovery device. A water pipe is fixedly installed in the middle of the side wall of the main body of the heat recovery device.

[0007] A connecting pipe I, fixedly installed at the right port of the water pipe. An inlet is fixedly arranged on the upper part of the outer surface of the connecting pipe I. A connecting pipe II is fixedly installed at the left port of the water pipe. An outlet is fixedly arranged on the lower part of the outer surface of the connecting pipe II.

[0008] Preferably, the interior of the main body of the heat recovery device includes:

[0009] The rotating shaft is rotatably connected to the inner cavity side wall of the main body of the heat recovery device and is located at the flue gas inlet;

[0010] The wind blade is fixedly sleeved on the middle part of the rotating shaft;

[0011] The reciprocating thread is arranged on the outer surface of the rotating shaft and is located on both sides of the wind blade;

[0012] The reciprocating magnetic slider is drivingly sleeved on the outer surface of the rotating shaft and is located at the reciprocating thread.

[0013] Preferably, the reciprocating magnetic slider includes:

[0014] The sleeve is movably sleeved on the outer surface of the reciprocating magnetic slider, and the sleeve is fixedly connected to the inner side wall of the main body of the heat recovery device;

[0015] The electromagnetic coil is fixedly arranged inside the side wall of the sleeve.

[0016] Preferably, the main body of the heat recovery device further includes:

[0017] The fixed box is fixedly connected to the outer surface of the main body of the heat recovery device at the flue gas inlet;

[0018] The storage battery is movably placed inside the fixed box, and the output end of the electromagnetic coil is electrically connected to the input end of the storage battery through a wire;

[0019] The box cover is arranged on the top of the fixed box.

[0020] Preferably, the inside of the main body of the heat recovery device further includes:

[0021] The sliding rod is fixedly connected to the inner side wall of the main body of the heat recovery device and is located on both sides of the water pipe;

[0022] The magnetic scraper is slidably sleeved on the outer surface of the sliding rod, the magnetic scraper is slidably sleeved with the water pipe, and the magnetism of the magnetic scraper is opposite to the magnetism of the reciprocating magnetic slider.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] 1. By designing a rotating shaft, a wind blade, a reciprocating thread, a reciprocating magnetic slider, a sleeve, an electromagnetic coil, a storage battery, etc., when the flue gas with heat enters the interior of the main body of the heat recovery device through the flue gas inlet, the wind blade is rotated by the flue gas, causing the wind blade to drive the rotating shaft to rotate. Then, by the cooperation of the reciprocating thread on the rotating shaft and the sleeve, the reciprocating magnetic slider will make a reciprocating movement inside the sleeve, resulting in an electromagnetic effect between the reciprocating magnetic slider and the electromagnetic coil, thereby causing the electromagnetic coil to generate an electric current. The output end of the electromagnetic coil is connected to the input end of the storage battery by a wire, so that the electric current generated by the electromagnetic coil is transmitted to and stored in the storage battery, thus improving the utilization rate of waste heat.

[0025] 2. By designing a slide bar, a reciprocating magnetic slider, a magnetic scraper, etc., when the reciprocating magnetic slider makes a reciprocating movement due to the rotation of the rotating shaft, due to the magnetic suction force of the reciprocating magnetic slider on the magnetic scraper, the magnetic scraper will slide synchronously with the reciprocating magnetic slider on the slide bar. And the magnetic scraper is movably sleeved on the outer surface of the water pipe. Therefore, during the movement of the magnetic scraper, it will scrape off the dust and the like attached to the outer surface of the water pipe, preventing the dust from attaching to the water pipe and affecting the heat absorption of the water pipe, and improving the utilization rate of heat reuse. Description of the Drawings

[0026] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0027] Figure 2 It is a schematic diagram of the internal structure of the main body of the heat recovery device of the present utility model;

[0028] Figure 3 It is a schematic diagram of the structure at the rotating shaft and the wind blade of the present utility model;

[0029] Figure 4 It is a schematic diagram of the internal structure of the sleeve of the present utility model;

[0030] Figure 5 It is a schematic diagram of the structure of the cooperation between the magnetic scraper and the water pipe of the present utility model.

[0031] In the figure: 1. Main body of the heat recovery device; 2. Flue gas inlet; 21. Rotating shaft; 22. Wind blade; 23. Reciprocating thread; 24. Reciprocating magnetic slider; 25. Sleeve; 26. Electromagnetic coil; 27. Fixed box; 28. Storage battery; 29. Box cover; 3. Flue gas outlet; 4. Water pipe; 41. Slide bar; 42. Magnetic scraper; 5. Connecting pipe I; 6. Water inlet; 7. Connecting pipe II; 8. Water outlet. Detailed Embodiment

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Please refer to Figures 1 - 5 , a waste heat recycling device for a steam boiler, including a main body 1 of the heat recovery device. In the middle of the right end face of the main body 1 of the heat recovery device, a flue gas inlet 2 is fixedly arranged. On the left part of the top surface of the main body 1 of the heat recovery device, a flue gas outlet 3 is fixedly arranged. In the middle of the side wall of the main body 1 of the heat recovery device, a water pipe 4 is fixedly installed. At the right port of the water pipe 4, a connecting pipe I 5 is fixedly installed. On the upper part of the outer surface of the connecting pipe I 5, a water inlet 6 is fixedly arranged. At the left port of the water pipe 4, a connecting pipe II 7 is fixedly installed. On the lower part of the outer surface of the connecting pipe II 7, a water outlet 8 is fixedly arranged.

[0034] Please refer to Figures 1 - 5 , on the inner cavity side wall of the main body 1 of the heat recovery device at the flue gas inlet 2, a rotating shaft 21 is rotatably installed. In the middle of the rotating shaft 21, a wind blade 22 is fixedly sleeved. Ensure that after the flue gas enters through the flue gas inlet 2, the flue gas can blow the wind blade 22 to rotate, so as to drive the rotating shaft 21 to rotate by the wind blade 22. On the outer surface of the rotating shaft 21 on both sides of the wind blade 22, a reciprocating thread 23 is arranged. On the outer surface of the rotating shaft 21 at the reciprocating thread 23, a reciprocating magnetic slider 24 is drivingly sleeved. When the rotating shaft 21 rotates, due to the design of the reciprocating thread 23, the reciprocating magnetic slider 24 will make a reciprocating movement.

[0035] Please refer to Figures 1 - 5 , on the outer surface of the reciprocating magnetic slider 24, a sleeve 25 is movably sleeved. The sleeve 25 is fixedly welded to the inner side wall of the main body 1 of the heat recovery device. Inside the side wall of the sleeve 25, an electromagnetic coil 26 is fixedly arranged. Ensure that when the reciprocating magnetic slider 24 makes a reciprocating movement, an electromagnetic effect can be generated between the reciprocating magnetic slider 24 and the electromagnetic coil 26, so that the electromagnetic coil 26 generates current.

[0036] Please refer to Figures 1 - 5 , on the outer surface of the main body 1 of the heat recovery device at the flue gas inlet 2, a fixed box 27 is fixedly welded. Inside the fixed box 27, a storage battery 28 is movably placed. The output end of the electromagnetic coil 26 is electrically connected to the input end of the storage battery 28 through a wire. Ensure that the current generated by the electromagnetic coil 26 will be transmitted to the storage battery 28 through the wire, so as to store electrical energy by the storage battery 28. On the top of the fixed box 27, a box cover 29 is arranged.

[0037] Please refer to Figures 1 - 5, on the inner side walls of the main body 1 of the heat recovery device, slide bars 41 are fixedly welded on both sides of the water pipe 4. A magnetic scraping plate 42 is slidably sleeved on the outer surface of the slide bar 41. The magnetic scraping plate 42 is slidably sleeved between the magnetic scraping plate 42 and the water pipe 4. The magnetism of the magnetic scraping plate 42 is opposite to that of the reciprocating magnetic slider 24, ensuring that during the movement of the reciprocating magnetic slider 24, the magnetic scraping plate 42 will be synchronously moved with the reciprocating magnetic slider 24 on the slide bar 41 through the action of magnetic attraction, so as to use the magnetic scraping plate 42 to clean the dust and the like on the outer surface of the water pipe 4, thereby improving the heating efficiency of the flue gas on the water pipe 4.

[0038] Working principle: When the main body 1 of the heat recovery device is in use, first connect the smoke outlet of the boiler to the flue gas inlet 2, and then the flue gas will enter the inside of the main body 1 of the heat recovery device. Then, use the flue gas with heat to heat the water pipe 4, so that the water inside the water pipe 4 will be heated by the flue gas with heat. After the heating is completed, the hot water will be discharged through the water outlet 8, and then cold water will be recharged into the water pipe 4 through the water inlet 6. The flue gas after being utilized will be discharged through the flue gas outlet 3. During this process, use the flue gas to blow the wind blade 22 to rotate, so that the wind blade 22 drives the rotating shaft 21 to rotate. Then, use the reciprocating thread 23 on the rotating shaft 21 to cooperate with the sleeve 25, so that the reciprocating magnetic slider 24 will reciprocate inside the sleeve 25, resulting in an electromagnetic effect between the reciprocating magnetic slider 24 and the electromagnetic coil 26, thereby causing the electromagnetic coil 26 to generate an electric current. Connect the output end of the electromagnetic coil 26 to the input end of the storage battery 28 by a wire, so that the current generated by the electromagnetic coil 26 will be transmitted into the storage battery 28 and stored, thereby improving the utilization rate of waste heat. At the same time, during the reciprocating movement of the reciprocating magnetic slider 24 due to the rotation of the rotating shaft 21, use the magnetic attraction of the reciprocating magnetic slider 24 on the magnetic scraping plate 42, so that the magnetic scraping plate 42 will slide synchronously with the reciprocating magnetic slider 24 on the slide bar 41. And the magnetic scraping plate 42 is movably sleeved on the outer surface of the water pipe 4. Therefore, during the movement of the magnetic scraping plate 42, it will scrape off the dust and the like attached to the outer surface of the water pipe 4, preventing the dust from adhering to the water pipe 4 and affecting the heat absorption of the water pipe 4, and improving the utilization rate of heat reuse.

Claims

1. A waste heat recycling device for a steam boiler, comprising a main body (1) of a heat recovery device, characterized in that, It also includes: A flue gas inlet (2), fixedly arranged in the middle of the right end face of the heat recovery device main body (1). A flue gas outlet (3) is fixedly arranged at the left part of the top surface of the heat recovery device main body (1). A water pipe (4) is fixedly installed in the middle of the side wall of the heat recovery device main body (1). A connecting pipe I (5), fixedly installed at the right port of the water pipe (4). An inlet (6) is fixedly arranged on the upper part of the outer surface of the connecting pipe I (5). A connecting pipe II (7) is fixedly installed at the left port of the water pipe (4). An outlet (8) is fixedly arranged on the lower part of the outer surface of the connecting pipe II (7).

2. The waste heat recycling device of a steam boiler according to claim 1, characterized in that: The interior of the heat recovery device main body (1) includes: A rotating shaft (21), rotatably connected to the inner side wall of the cavity of the heat recovery device main body (1) and located at the flue gas inlet (2). A wind blade (22), fixedly sleeved in the middle of the rotating shaft (21). A reciprocating thread (23), arranged on the outer surface of the rotating shaft (21) and located on both sides of the wind blade (22). A reciprocating magnetic slider (24), drivingly sleeved on the outer surface of the rotating shaft (21) and located at the reciprocating thread (23).

3. The waste heat recovery device of a steam boiler according to claim 2, characterized in that: On the reciprocating magnetic slider (24) includes: A sleeve (25), movably sleeved on the outer surface of the reciprocating magnetic slider (24). The sleeve (25) is fixedly connected to the inner side wall of the heat recovery device main body (1). An electromagnetic coil (26), fixedly arranged inside the side wall of the sleeve (25).

4. The waste heat recovery device of a steam boiler according to claim 3, characterized in that: On the heat recovery device main body (1) also includes: A fixed box (27), fixedly connected to the outer surface of the heat recovery device main body (1) at the flue gas inlet (2). A storage battery (28), movably placed inside the fixed box (27). The output end of the electromagnetic coil (26) is electrically connected to the input end of the storage battery (28) through a wire. A box cover (29), arranged on the top of the fixed box (27).

5. The waste heat reuse device of a steam boiler according to claim 4, characterized in that: The interior of the heat recovery device main body (1) also includes: A sliding rod (41), fixedly connected to the inner side wall of the heat recovery device main body (1) and located on both sides of the water pipe (4). A magnetic scraper (42), slidably sleeved on the outer surface of the sliding rod (41). The magnetic scraper (42) is slidably sleeved with the water pipe (4). The magnetism of the magnetic scraper (42) is opposite to that of the reciprocating magnetic slider (24).

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