A water-cooled waste heat boiler

Abstract

The utility model discloses a water-cooled waste heat boiler, including a heat exchange tube, an air inlet pipe fixedly connected to the left side of the heat exchange tube and an air outlet pipe fixedly connected to the right end of the heat exchange tube, a heat exchange tube, the heat exchange tube is immersed in the water inside the heat exchange tube, and the heat exchange tube is spiral in the heat exchange tube, the left side of the heat exchange tube is connected to the air inlet pipe, and a filter purification box, a docking mechanism is arranged at an equal angle on the left side of the filter purification box. The water-cooled waste heat boiler is convenient for heat exchange treatment of high-temperature flue gas, and the waste heat in the flue gas is utilized to prevent heat loss. Moreover, through the arrangement of the docking mechanism, it is convenient to dock the filter purification box with the heat exchange tube. An activated carbon purification net is arranged in the middle of the filter purification box. The flue gas after heat exchange is passed into the filter purification box, and is filtered and purified by the activated carbon purification net before being discharged to the outside, so as to prevent dust impurities in the flue gas from polluting the environment after direct discharge.

Description

Technical Field

[0001] The utility model relates to the technical field related to boiler waste heat treatment, in particular to a water-cooled waste heat boiler. Background Art

[0002] Boiler refers to an energy conversion device. The energy input to the boiler includes chemical energy and electrical energy in the fuel, and can output steam, high-temperature water or organic heat carrier with a certain amount of thermal energy. Ordinary boilers will produce a large amount of high-temperature flue gas during use, while waste heat boilers mainly use the heat in the high-temperature flue gas for recovery, recover the heat in the high-temperature flue gas and produce hot water or steam for use;

[0003] For example, patent authorization announcement number CN205065671U, authorization announcement date 2016.03.02, discloses a waste heat boiler, the upper part of which is provided with a flue gas collection area, the cross section of which is circular and gradually increases from top to bottom. A waste heat boiler of the utility model adopts a special flue gas collection area structure and a heat exchange area structure, so that the flue gas flows evenly, the resistance is small, the heat exchange is sufficient, and the structure is compact;

[0004] However, in the prior art, the high-temperature flue gas is mostly directly discharged to the outside after heat exchange, and the flue gas after heat exchange still contains a large amount of dust impurities, which pollutes the environment and is inconvenient to filter and purify the flue gas. For example, the comparative patents listed above have this problem;

[0005] For this reason, we proposed a water-cooled waste heat boiler to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a water-cooled waste heat boiler to solve the problem that in the prior art proposed in the above background technology, most of the high-temperature flue gas is directly discharged to the outside after heat exchange, and the flue gas after heat exchange still contains a large amount of dust impurities, which pollutes the environment and is inconvenient to filter and purify the flue gas.

[0007] To achieve the above object, the utility model provides the following technical solution: a water-cooled waste heat boiler, comprising a heat exchange cylinder, an air inlet pipe fixedly connected to the left side of the heat exchange cylinder, and an air outlet pipe fixedly connected to the right end of the heat exchange cylinder;

[0008] Wherein, the air inlet pipe is connected to the external boiler equipment through a first valve, and a connecting valve is fixedly installed at the lower end of the heat exchange cylinder;

[0009] Also includes:

[0010] A heat exchange tube, wherein the heat exchange tube is immersed in the water inside the heat exchange tube and is spirally arranged in the heat exchange tube, wherein the left side of the heat exchange tube is connected to the air inlet pipe, and the right end of the heat exchange tube is connected to the air outlet pipe;

[0011] A filter purification box, a docking mechanism is arranged at an equal angle on the left side of the filter purification box, and the docking mechanism is used to connect the heat exchange cylinder and the filter purification box, an activated carbon purification net is inserted in the middle of the filter purification box, and a fixed pressure plate is arranged in the middle of the upper end of the activated carbon purification net;

[0012] Wherein, the fixed pressing plate drives the activated carbon purification net to form a disassembly structure in the middle of the filtering and purification box.

[0013] Preferably, the air outlet pipe is plugged and installed in the middle of the connecting pipe, and a sealing ring is fitted between the air outlet pipe and the connecting pipe, and the connecting pipe is fixedly connected to the left end of the filter purification box;

[0014] Wherein, the right end of the filtering and purifying box is connected to the exhaust pipe through the second valve.

[0015] Preferably, the docking mechanism comprises a docking cylinder fixedly connected to the edge of the right end of the heat exchange cylinder, a docking column fixedly connected to the edge of the left end of the filter purification box, a docking rod fixedly connected to the side of the docking column and a docking cap for limiting position;

[0016] Wherein, the docking mechanism drives the filter purification box and the heat exchange cylinder to form a disassembly structure.

[0017] Preferably, the docking sleeve and the docking post are arranged in a one-to-one correspondence, and the docking sleeve is plugged into the middle of the docking post.

[0018] Preferably, the docking tube and the docking rod are connected by a slot, and the docking rod and the docking cap are connected by a thread, and the docking cap is snap-fitted to the side of the docking column.

[0019] Preferably, the fixed pressure plate is hingedly connected to the upper end of the filter purification box, and the fixed pressure plate is fitted on the upper end of the activated carbon purification net, and the fixed pressure plate is used to press and limit the activated carbon purification net.

[0020] Preferably, a movable pin is inserted into the left end of the fixed pressure plate, and the movable pin is telescopically connected to the middle part of the fixed block.

[0021] Preferably, a spring is provided between the movable pin and the fixed block, and the fixed block is fixedly connected to the left side of the upper end of the filter purification box.

[0022] Compared with the prior art, the utility model has the following beneficial effects: the water-cooled waste heat boiler contains an appropriate amount of cold water in the heat exchange tube, the heat exchange tube is immersed in water, and the high-temperature flue gas enters the heat exchange tube, which can heat the cold water inside the heat exchange tube, thereby facilitating heat exchange treatment of the high-temperature flue gas, utilizing the waste heat in the flue gas, and preventing heat loss. Moreover, through the setting of the docking mechanism, it is convenient to dock the filter purification box with the heat exchange tube, and an activated carbon purification net is arranged in the middle of the filter purification box. The flue gas after heat exchange passes into the filter purification box, is filtered and purified by the activated carbon purification net, and then discharged to the outside, so as to prevent dust impurities in the flue gas from polluting the environment after direct discharge.

[0023] 1. It is equipped with a heat exchange cylinder and a heat exchange tube. The heat exchange cylinder contains an appropriate amount of cold water, and the heat exchange tube is immersed in the cold water. The high-temperature flue gas in the heat exchange tube can heat the cold water, which is convenient for recycling the waste heat in the high-temperature flue gas. In addition, the heat exchange tube is spiral, which increases the contact area with the cold water, thereby greatly improving the actual heat exchange efficiency;

[0024] 2. A docking mechanism is provided, which includes a docking tube, a docking column, a docking rod and a docking cap. The docking mechanism is arranged at equal angles between the filter purification box and the heat exchange tube. The setting of the docking mechanism facilitates the installation and docking between the filter purification box and the heat exchange tube;

[0025] 3. Equipped with an activated carbon purification net and a fixed pressure plate. The activated carbon purification net is plugged and installed in the filter purification box. Through the setting of the activated carbon purification net, it is convenient to filter and purify the flue gas in the Tongrui filter purification box after heat exchange, preventing the flue gas from being directly discharged to the outside and causing pollution to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of the utility model viewed from the southeast direction;

[0027] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from the southwest;

[0028] Figure 3 This is a schematic diagram of the front view cutaway structure of the utility model;

[0029] Figure 4 This is a schematic diagram of the cross-sectional structure of the heat exchange cylinder, heat exchange tube, air outlet pipe, filter purification box, connecting pipe and activated carbon purification net of the utility model;

[0030] Figure 5 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0031] Figure 6 This is a schematic diagram of the exploded structure of the docking tube, docking column, docking rod and docking cap of the utility model;

[0032] Figure 7 For this utility model Figure 1 The enlarged structural diagram at B in the middle;

[0033] Figure 8 It is a schematic diagram of the cross-section structure of the fixed block, movable pin and fixed pressure plate of the utility model.

[0034] In the figure: 1. heat exchange cylinder; 2. air inlet pipe; 3. heat exchange tube; 4. air outlet pipe; 5. filter purification box; 6. connecting pipe; 7. connecting valve; 8. docking mechanism; 9. docking cylinder; 10. docking column; 11. docking rod; 12. docking cap; 13. activated carbon purification net; 14. fixed pressure plate; 15. fixed block; 16. spring; 17. movable pin; 18. exhaust pipe. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] See also Figure 1-8 The utility model provides a technical solution: a water-cooled waste heat boiler, including a heat exchange tube 1, an air inlet pipe 2, a heat exchange tube 3, an air outlet pipe 4, a filter purification box 5, a connecting pipe 6, a connecting valve 7, a docking mechanism 8, a docking tube 9, a docking column 10, a docking rod 11, a docking cap 12, an activated carbon purification net 13, a fixed pressure plate 14, a fixed block 15, a spring 16, a movable pin 17 and an exhaust pipe 18.

[0037] When using the water-cooled waste heat boiler, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the left side of the heat exchange cylinder 1 is connected to the air inlet pipe 2 through the first valve, and the air inlet pipe 2 is connected to the flue gas pipe of the external boiler, which is not shown in the figure. At the same time, the air inlet pipe 2 is connected to the left side of the heat exchange pipe 3, and the left side of the heat exchange pipe 3 is connected to the air outlet pipe 4. Combined with the setting of the docking mechanism 8, the docking mechanism 8 is set at an equal angle between the heat exchange cylinder 1 and the filter purification box 5, and the docking mechanism 8 includes a docking cylinder 9 fixedly connected to the edge of the right end of the heat exchange cylinder 1, a docking column 10 fixedly connected to the edge of the left end of the filter purification box 5, a docking rod 11 fixedly connected to the side of the docking column 10, and a docking cap 1 for limiting. 2. The filter purification box 5 drives the docking column 10 to be inserted into the docking tube 9, and the docking column 10 drives the docking rod 11 to be connected with the docking tube 9 by a slot. At the same time, the left side of the filter purification box 5 is fixedly connected with a connecting pipe 6, and the filter purification box 5 drives the connecting pipe 6 to be sleeved on the outer surface of the outlet pipe 4, and a sealing ring is provided between the connecting pipe 6 and the outlet pipe 4. Then, the docking cap 12 connected to the outer surface of the docking rod 11 is rotated, so that the docking cap 12 is engaged with the side of the docking tube 9, so as to facilitate the position limiting between the docking tube 9 and the docking column 10, and facilitate the assembly between the filter purification box 5 and the heat exchange tube 1;

[0038] A water inlet is provided at the upper left end of the heat exchange cylinder 1. First, a proper amount of cold water is added to the heat exchange cylinder 1 through the water inlet. A heat exchange tube 3 is provided in the heat exchange cylinder 1. The heat exchange tube 3 is completely immersed in the cold water inside the heat exchange cylinder 1. Then, the first valve on the air inlet pipe 2 is opened. At this time, the high-temperature flue gas enters the heat exchange tube 3 through the air inlet pipe 2. The cold water in the heat exchange cylinder 1 can be heated to achieve heat exchange. The heat exchange tube 3 is spiral in the heat exchange cylinder 1, thereby increasing the actual heat exchange area and improving the heat exchange efficiency. Water can be discharged through the connecting valve 7 installed at the lower end of the heat exchange tube 1, and the flue gas after heat exchange enters the filter purification box 5 through the outlet pipe 4 and the connecting pipe 6, and an activated carbon purification net 13 is installed in the middle of the filter purification box 5. The activated carbon purification net 13 can filter and purify dust impurities in the flue gas to prevent the flue gas from being directly discharged to the outside and causing pollution to the environment. In addition, the right end of the filter purification box 5 is connected to the exhaust pipe 18 through the second valve, and the purified flue gas is directly discharged to the outside through the exhaust pipe 18;

[0039] In addition, if Figure 7 and Figure 8As shown, by pulling the movable pin 17, the movable pin 17 slides in the fixed block 15, and the movable pin 17 squeezes the spring 16, so that the spring 16 is elastically deformed, and the movable pin 17 is disengaged from the fixed pressure plate 14, thereby releasing the limit on the fixed pressure plate 14, and then by flipping the fixed pressure plate 14, the fixed pressure plate 14 is rotated at the upper end of the filter purification box 5, so that the fixed pressure plate 14 releases the clamping limit on the activated carbon purification net 13, and then the activated carbon purification net 13 is pulled out of the filter purification box 5, thereby facilitating the disassembly, cleaning and replacement of the activated carbon purification net 13.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water-cooled waste heat boiler, comprising a heat exchange tube (1), an air inlet pipe (2) fixedly connected to the left side of the heat exchange tube (1), and an air outlet pipe (4) fixedly connected to the right end of the heat exchange tube (1); in, The air inlet pipe (2) is connected to an external boiler device via a first valve, and a connecting valve (7) is fixedly mounted on the lower end of the heat exchange cylinder (1); It is characterized by further comprising: A heat exchange tube (3), the heat exchange tube (3) being immersed in water inside the heat exchange tube (1), and the heat exchange tube (3) being spirally shaped in the heat exchange tube (1), the left side of the heat exchange tube (3) being connected to the air inlet pipe (2), and the right end of the heat exchange tube (3) being connected to the air outlet pipe (4); A filter purification box (5), wherein a docking mechanism (8) is arranged at an equal angle on the left side of the filter purification box (5), and the docking mechanism (8) is used to connect the heat exchange cylinder (1) and the filter purification box (5), an activated carbon purification net (13) is inserted in the middle of the filter purification box (5), and a fixed pressure plate (14) is arranged in the middle of the upper end of the activated carbon purification net (13); The fixed pressing plate (14) drives the activated carbon purification net (13) to form a disassembly structure in the middle of the filtering and purification box (5).

2. A water-cooled waste heat boiler according to claim 1, characterized in that: The air outlet pipe (4) is plugged and installed in the middle of the connecting pipe (6), and a sealing ring is provided between the air outlet pipe (4) and the connecting pipe (6), and the connecting pipe (6) is fixedly connected to the left end of the filter purification box (5); The right end of the filter purification box (5) is connected to the exhaust pipe (18) via a second valve.

3. The water-cooled waste heat boiler according to claim 1, characterized in that: The docking mechanism (8) comprises a docking cylinder (9) fixedly connected to the right edge of the heat exchange cylinder (1), a docking column (10) fixedly connected to the left edge of the filter purification box (5), a docking rod (11) fixedly connected to the side of the docking column (10), and a docking cap (12) for limiting position; The docking mechanism (8) drives the filter purification box (5) and the heat exchange cylinder (1) to form a disassembly structure.

4. A water-cooled waste heat boiler according to claim 3, characterized in that: The docking cylinder (9) and the docking column (10) are arranged in a one-to-one correspondence, and the docking cylinder (9) is plugged into the middle of the docking column (10).

5. A water-cooled waste heat boiler according to claim 4, characterized in that: The docking tube (9) and the docking rod (11) are connected by a slot, and the docking rod (11) and the docking cap (12) are connected by a threaded connection, and the docking cap (12) is snap-connected to the side of the docking column (10).

6. The water-cooled waste heat boiler according to claim 1, characterized in that: The fixed pressing plate (14) is hingedly connected to the upper end of the filter purification box (5), and the fixed pressing plate (14) is arranged in close contact with the upper end of the activated carbon purification net (13), and the fixed pressing plate (14) is used to press and limit the activated carbon purification net (13).

7. The water-cooled waste heat boiler according to claim 6, characterized in that: A movable pin (17) is inserted into the left end of the fixed pressure plate (14), and the movable pin (17) is telescopically connected to the middle part of the fixed block (15).

8. The water-cooled waste heat boiler according to claim 7, characterized in that: A spring (16) is provided between the movable pin (17) and the fixed block (15), and the fixed block (15) is fixedly connected to the left side of the upper end of the filter purification box (5).

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