Energy-saving boiler waste heat recycling device

Abstract

The utility model discloses an energy -saving boiler waste heat recycling device belongs to boiler technical field, including boiler main part and the waste heat storage jar body of setting fixed at the top of boiler main part, be provided with the heat storage cavity between boiler main part and waste heat storage jar body, the both ends of heat storage cavity all can detachable fixed with the shunt pipe, equidistance fixed with the heat absorbing metal pipe of arc structure between two shunt pipes, and this energy -saving boiler waste heat recycling device is absorbed and accumulates to the boiler main part surface waste heat through the heat storage filler, and the heat conduction of filter main body outer wall is improved to the heat conducting metal plate, and the heat of heat storage filler is absorbed when water flows in the heat absorbing pipe, and each heat absorbing pipe is relatively independent, and the journey of water in the heat storage box body is shortened, and it is guaranteed that water can fully absorb the heat of heat storage filler, and the utilization effect of boiler main part surface waste heat is improved.

Description

Technical Field

[0001] This utility model belongs to the field of boiler technology, specifically relating to an energy-saving boiler waste heat recovery device. Background Technology

[0002] A boiler is an energy conversion device. The energy input to a boiler includes the chemical energy of fuel and electrical energy. The boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of heat energy. A waste heat boiler is a part of a boiler, which refers to a boiler that uses the waste heat in waste gas, waste materials or waste liquid in various industrial processes and the heat generated after the combustion of combustible substances to heat water to a certain temperature.

[0003] In existing technologies, to achieve preheating and collection of heat from the boiler surface, there are boilers that utilize waste heat. For example, patent number CN202121954309.6 discloses an energy-saving boiler that utilizes waste heat. This boiler has a heat storage mechanism installed outside the furnace body, collecting waste heat from the outside of the furnace body using heat storage clay. A spiral water-liquid jacket is installed within the heat storage clay, and water is introduced into the water-liquid jacket. The heat in the heat storage clay heats the water in the water-liquid jacket, allowing the water to be heated and output, thus achieving the purpose of utilizing the waste heat of the furnace body. However, in... The water-liquid jacket is arranged in a spiral shape and has only one set of inlet and outlet. When water is introduced, it can only enter from one end of the water-liquid jacket and move spirally within it to absorb heat from the heat-storing clay. However, because the water absorbs heat from the heat-storing clay in a spiral motion, the water temperature gradually increases during the movement. When the water moves to the rear section of the water-liquid jacket, the water temperature rises to a certain level, which reduces the amount of heat absorbed from the heat-storing clay in the rear section. This results in more heat being dissipated into the air from the rear section of the heat-storing clay, causing a waste of residual heat. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an energy-saving boiler waste heat recovery device. This device aims to solve the technical problem that in existing technologies, water absorbs heat from the heat storage clay in a spiral motion. During the water's movement, the water temperature gradually increases. When the water reaches the rear section of the water jacket, the water temperature rises to a certain level, which reduces the amount of heat absorbed from the heat storage clay in the rear section. This results in a significant amount of heat being released into the air from the rear section of the heat storage clay, leading to waste of waste heat.

[0006] (2) Technical solution

[0007] To solve the above-mentioned technical problems, this utility model provides an energy-saving boiler waste heat recovery device, including a boiler body and a waste heat storage tank fixed on the top of the boiler body. A heat storage cavity is provided between the boiler body and the waste heat storage tank. Both ends of the heat storage cavity are detachably fixed with diverter pipes. An arc-shaped heat-absorbing metal pipe is fixed at equal intervals between the two diverter pipes. Heat storage filler that fits and is sleeved on the heat-absorbing metal pipe is embedded in the heat storage cavity.

[0008] When using this technical solution, a heat storage packing material fitted onto a heat-absorbing metal tank is installed in the heat storage cavity between the boiler body and the waste heat storage tank. The heat storage packing material absorbs and accumulates waste heat from the surface of the boiler body. The heat-conducting metal plate enhances the heat conduction of the outer wall of the filter body, allowing heat to be quickly transferred to the heat storage packing material. Water flows in through one installation pipe and out through another installation pipe after flowing through the separation pipe and the heat-absorbing metal pipe. When the water flows inside the heat-absorbing pipe, it absorbs heat from the heat storage packing material, thereby realizing the utilization of waste heat from the surface of the boiler body. At the same time, each heat-absorbing pipe is relatively independent, shortening the water's travel distance inside the heat storage tank and ensuring water... It can fully absorb the heat stored in the heat storage packing, improving the utilization effect of waste heat on the surface of the boiler body. By welding and fixing mounting rods at both ends of the distribution pipe, and threading nuts through multiple mounting rods through the waste heat storage tank and the top cover, the distribution pipe and heat absorption metal tube are kept fixed in the heat storage chamber. When the distribution pipe and heat absorption metal tube are filled with scale and blocked, the nuts are unscrewed to unscrew the mounting pipe from the connecting pipe, and the top cover is opened to remove the distribution pipe, heat absorption metal tube and heat storage packing from the top of the heat storage chamber. This improves the convenience of disassembling the distribution pipe and heat absorption metal tube and avoids the situation where the heat absorption metal tube cannot be disassembled and replaced due to scale blockage.

[0009] Preferably, the bottom of the boiler body is welded with support legs in a circular array, and the top of the boiler body is fitted with a top cover that covers the waste heat storage tank.

[0010] Furthermore, both ends of the diversion pipe are fixed with mounting rods, and multiple mounting rods pass through the bottom end and top cover of the waste heat storage tank and are threaded with nuts.

[0011] Furthermore, a connecting pipe is fixedly installed on the outer wall of the diversion pipe, and installation pipes are inserted into both ends of the waste heat storage tank.

[0012] Furthermore, one end of the mounting tube is threaded onto the connecting tube, and the other end of the mounting tube is provided with a flange.

[0013] Furthermore, the heat storage packing includes an upper packing and a lower packing, and an arc-shaped groove is opened at one end of the upper packing and the lower packing, wherein the heat storage packing is attached to the outer wall of the heat-absorbing metal tube through the arc-shaped groove.

[0014] Furthermore, a heat-conducting metal plate is provided between two adjacent heat storage fillers and inserted into the heat storage cavity. The inner wall of the heat-conducting metal plate has an arc-shaped structure and is tightly connected to the outer wall of the boiler body.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention features a heat storage packing material fitted onto a heat-absorbing metal tank within a heat storage cavity between the boiler body and the waste heat storage tank. The heat storage packing material absorbs and accumulates waste heat from the surface of the boiler body. A heat-conducting metal plate enhances the heat conduction of the outer wall of the filter body, allowing heat to be quickly transferred to the heat storage packing material. Water flows in through one installation pipe and exits through another installation pipe after passing through a separation pipe and a heat-absorbing metal pipe. As the water flows inside the heat-absorbing pipe, it absorbs heat from the heat storage packing material, thereby utilizing the waste heat from the surface of the boiler body. Simultaneously, each heat-absorbing pipe is relatively independent, shortening the water's travel distance within the heat storage tank and ensuring that the water can fully absorb the heat accumulated in the heat storage packing material, thus improving the utilization effect of waste heat from the surface of the boiler body.

[0018] By welding and fixing mounting rods at both ends of the distribution pipe, and threading nuts onto the multiple mounting rods after passing through the waste heat storage tank and the top cover, the distribution pipe and the heat-absorbing metal pipe are kept fixed in the heat storage chamber. When the distribution pipe and the heat-absorbing metal pipe are filled with scale and clogged, the nuts are unscrewed to remove the mounting pipe from the connecting pipe, and the top cover is opened to remove the distribution pipe, the heat-absorbing metal pipe and the heat storage packing from the top of the heat storage chamber. This improves the convenience of disassembling the distribution pipe and the heat-absorbing metal pipe and avoids the situation where the heat-absorbing metal pipe cannot be disassembled and replaced due to scale blockage. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the heat-absorbing metal tube in this utility model;

[0022] Figure 3 This is a cross-sectional view of the heat-absorbing metal tube in this utility model.

[0023] Figure 4 This is a partial cross-sectional view of the waste heat storage tank in this utility model.

[0024] The markings in the attached diagram are as follows: 1. Boiler body; 2. Mounting pipe; 3. Top cover; 4. Waste heat storage tank; 5. Support leg; 6. Diversion pipe; 7. Heat storage packing; 8. Heat-absorbing metal pipe; 9. Mounting rod; 10. Nut; 11. Connecting pipe; 12. Heat storage chamber; 13. Heat-conducting metal plate; 14. Arc groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This specific embodiment is an energy-saving boiler waste heat recovery device, the structural schematic diagram of which is shown below. Figure 1 and Figure 2 As shown, the system includes a boiler body 1 and a waste heat storage tank 4 fixed to the top of the boiler body 1. A heat storage chamber 12 is provided between the boiler body 1 and the waste heat storage tank 4. Both ends of the heat storage chamber 12 are detachably fixed with diversion pipes 6. A heat-absorbing metal pipe 8 with an arc structure is fixed at equal intervals between the two diversion pipes 6. Heat storage filler 7 that fits and is sleeved on the heat-absorbing metal pipe 8 is embedded in the heat storage chamber 12.

[0027] The bottom of the boiler body 1 is welded with support legs 5 in a ring array, and the top of the boiler body 1 is fitted with a top cover 3 that covers the waste heat storage tank 4. The heat storage packing 7 includes upper packing and lower packing, and each of the upper and lower packing has an arc-shaped groove 14 at one end. The heat storage packing 7 fits against the outer wall of the heat-absorbing metal tube 8 through the arc-shaped groove 14. A heat-conducting metal plate 13 is provided between two adjacent heat storage packings 7 and is inserted into the heat storage cavity 12. The inner wall of the heat-conducting metal plate 13 has an arc-shaped structure and is tightly connected to the outer wall of the boiler body 1. The heat storage packing 7 absorbs and accumulates the waste heat on the surface of the boiler body 1, and the heat-conducting metal plate 13 lifts... The heat conduction of the outer wall of the filter body is improved, so that the heat is quickly conducted to the heat storage packing 7. The water flows in along one installation pipe 2 and flows through the separation pipe and the heat absorption metal pipe 8 before being output from another installation pipe 2. When the water flows inside the heat absorption pipe, it can absorb the heat in the heat storage packing 7, thereby realizing the utilization of the waste heat on the surface of the boiler body 1. At the same time, each heat absorption pipe is relatively independent, shortening the water's journey inside the heat storage box and ensuring that the water can fully absorb the heat stored in the heat storage packing 7, thereby improving the utilization effect of the waste heat on the surface of the boiler body 1. Additional heat storage packing 7 is added to the cavity between two adjacent heat absorption metal pipes 8 for support.

[0028] like Figure 3 and Figure 4 As shown, both ends of the diversion pipe 6 are fixed with mounting rods 9. Multiple mounting rods 9 pass through the bottom end of the waste heat storage tank 4 and the top cover 3 respectively, and are threaded with nuts 10. A connecting pipe 11 is fixedly installed on the outer wall of the diversion pipe 6. Both ends of the waste heat storage tank 4 are inserted with mounting pipes 2. One end of the mounting pipe 2 is threaded onto the connecting pipe 11, and the other end of the mounting pipe 2 is provided with a flange. Multiple mounting rods 9 pass through the waste heat storage tank 4 and the top cover 3 and are threaded with nuts 10, thereby keeping the diversion pipe 6 and the heat-absorbing metal pipe 8 fixed in the heat storage chamber 12. When the diversion pipe 6 and the heat-absorbing metal pipe 8 are filled with scale and blocked, the nuts 10 are unscrewed to unscrew the mounting pipe 2 from the connecting pipe 11, and the top cover 3 is opened to remove the diversion pipe 6, the heat-absorbing metal pipe 8 and the heat storage packing 7 from the top of the heat storage chamber 12, which improves the convenience of disassembling the diversion pipe 6 and the heat-absorbing metal pipe 8.

[0029] After utilizing the waste heat, the heated water can be protected with an insulation jacket to prevent heat loss. The outer surface of the heat storage tank 4 is covered with 1-3cm thick insulation cotton. This insulation cotton protects the heat stored inside the heat storage packing 712 from escaping to the outside, further improving the waste heat utilization efficiency.

[0030] Working Principle: When using the device of this technical solution, the water supply pipe is fixed to the installation pipe 2 via a flange. The heat storage packing 7 absorbs and accumulates the waste heat on the surface of the boiler body 1. The heat-conducting metal plate 13 enhances the heat conduction of the outer wall of the filter body, allowing heat to be quickly transferred to the heat storage packing 7. Water flows in along one installation pipe 2 and flows through the separation pipe and the heat-absorbing metal pipe 8 before exiting through another installation pipe 2. When the water flows inside the heat-absorbing pipe, it can absorb the heat in the heat storage packing 7, thereby realizing the utilization of the waste heat on the surface of the boiler body 1. At the same time, each heat-absorbing pipe is relatively independent, shortening the water's travel distance inside the heat storage tank and ensuring that the water can effectively absorb the waste heat. The heat stored in the heat storage packing 7 is fully absorbed. When the diversion pipe 6 and the heat-absorbing metal pipe 8 are filled with scale and blocked, the nut 10 is unscrewed to remove the installation pipe 2 from the connecting pipe 11. The top cover 3 is then opened to remove the diversion pipe 6, the heat-absorbing metal pipe 8, and the heat storage packing 7 from the top of the heat storage chamber 12. The diversion pipe 6 and the heat-absorbing metal pipe 8 are then replaced. During the replacement process, the heat storage packing 7 is fitted onto the heat-absorbing metal pipe 8. After the heat-absorbing metal pipe 8 is embedded in the heat storage chamber 12, multiple installation rods 9 pass through the waste heat storage tank 4 and the top cover 3 and are threaded onto the nut 10, thereby keeping the diversion pipe 6 and the heat-absorbing metal pipe 8 fixed in the heat storage chamber 12.

[0031] All technical features in this embodiment can be freely combined according to actual needs.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An energy-saving boiler waste heat recovery device, characterized in that, The system includes a boiler body (1) and a waste heat storage tank (4) fitted and fixed at the top of the boiler body (1). A heat storage chamber (12) is provided between the boiler body (1) and the waste heat storage tank (4). Both ends of the heat storage chamber (12) are detachably fixed with diversion pipes (6). A heat-absorbing metal pipe (8) with an arc structure is fixed at equal intervals between the two diversion pipes (6). Heat storage filler (7) that fits and is fitted onto the heat-absorbing metal pipe (8) is embedded in the heat storage chamber (12).

2. The energy-saving boiler waste heat recovery device according to claim 1, characterized in that, The bottom of the boiler body (1) is welded with support legs (5) in a ring array, and the top of the boiler body (1) is fitted with a top cover (3) on the disaster relief heat storage tank (4).

3. The energy-saving boiler waste heat recovery device according to claim 2, characterized in that, Both ends of the diversion pipe (6) are fixed with mounting rods (9), and multiple mounting rods (9) pass through the bottom end and top cover (3) of the waste heat storage tank (4) respectively and are threaded with nuts (10).

4. The energy-saving boiler waste heat recovery device according to claim 3, characterized in that, A connecting pipe (11) is fixedly installed on the outer wall of the diversion pipe (6), and installation pipes (2) are inserted into both ends of the waste heat storage tank (4).

5. The energy-saving boiler waste heat recovery device according to claim 4, characterized in that, One end of the mounting pipe (2) is threaded onto the connecting pipe (11), and the other end of the mounting pipe (2) is provided with a flange.

6. The energy-saving boiler waste heat recovery device according to claim 1, characterized in that, The heat storage packing (7) includes an upper packing and a lower packing. An arc-shaped groove (14) is provided at one end of the upper packing and the lower packing. The heat storage packing (7) is attached to the outer wall of the heat-absorbing metal pipe (8) through the arc-shaped groove (14).

7. The energy-saving boiler waste heat recovery device according to claim 6, characterized in that, A heat-conducting metal plate (13) is provided between two adjacent heat storage fillers (7) and inserted into the heat storage cavity (12). The inner wall of the heat-conducting metal plate (13) has an arc-shaped structure and is tightly connected to the outer wall of the boiler body (1).

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