A waste heat energy storage device for household garbage incineration boiler

Abstract

The utility model relates to domestic waste treatment technical field especially, a kind of waste heat energy storage equipment for domestic waste incineration boiler, its technical scheme includes: front water tank, rear water tank and flue body, the front water tank and rear water tank are respectively installed in the front and rear ends of flue body and intercommunication, the flue body is used for the flue gas of incineration boiler to pass through;The front water tank and rear water tank are used for water storage heat exchange;Heating tank is communicated on the rear water tank, and the heating tank is used to increase heating area;The front water tank is detachably installed with protective sleeve, the protective sleeve is movably sleeved on the outside of heating tank, for protecting heating tank from the influence of smoke dust.The utility model has the advantages of guaranteeing waste heat recovery efficiency and reducing maintenance difficulty, solves the problem that existing equipment is affected by smoke dust, resulting in the decline of waste heat recovery efficiency and higher maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of municipal solid waste treatment technology, specifically to a waste heat storage device for municipal solid waste incineration boilers. Background Technology

[0002] Municipal solid waste incineration is one of the important technological means to achieve the reduction and harmless treatment of municipal solid waste. While processing waste, the incineration boiler generates a large amount of high-temperature flue gas, which contains considerable waste heat resources. To improve energy utilization efficiency, the industry generally carries out waste heat recovery and utilization work for incineration boilers. By using supporting waste heat storage equipment, the waste heat in the flue gas is captured and stored, and then converted into usable energy according to actual needs, thereby reducing energy waste and realizing the secondary utilization of resources. This process has become an indispensable and important part of the municipal solid waste incineration treatment system.

[0003] However, in actual operation, existing waste heat storage equipment used for municipal solid waste incineration boilers often suffers from a large amount of dust in the flue gas produced due to the complex composition of municipal solid waste. As this dust flows through the heat exchange-related areas inside the waste heat storage equipment, it tends to gradually adhere to and accumulate, which in turn has an adverse effect on the heat transfer efficiency of the equipment, causing the waste heat recovery efficiency to gradually decrease over time. At the same time, the accumulation of dust also increases the difficulty and cost of daily cleaning and maintenance of the equipment.

[0004] To address these issues, a waste heat storage device for municipal solid waste incineration boilers is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a waste heat storage device for municipal solid waste incineration boilers, which has the advantages of ensuring waste heat recovery efficiency and reducing maintenance difficulty, and solves the problem that the existing equipment suffers from reduced waste heat recovery efficiency and high maintenance costs due to the influence of smoke and dust.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a waste heat storage device for a municipal solid waste incineration boiler, comprising a front water tank, a rear water tank, and a flue body. The front water tank and the rear water tank are respectively installed at the front and rear ends of the flue body and are interconnected. The flue body is used for the passage of flue gas from the incineration boiler. Both the front water tank and the rear water tank are used for water storage and heat exchange. A heating tank is connected to the rear water tank, which is used to increase the heating area. A protective sleeve is detachably installed on the front water tank, and the protective sleeve is movably fitted onto the outside of the heating tank to protect the heating tank from the influence of smoke and dust.

[0007] Preferably, a first mounting bracket is installed on the front water tank, and a second mounting bracket is detachably installed on the first mounting bracket, with the protective sleeve installed on the second mounting bracket; the front water tank is provided with a drain pipe, a first connecting pipe, a first connecting hole, and a reserved hole, the drain pipe being used to drain liquid, the first connecting pipe and the first connecting hole being used to connect to the rear water tank, and the reserved hole being used for the protective sleeve to pass through.

[0008] In the design, the first mounting bracket and the second mounting bracket installed on the front water tank are detachably connected, and the protective sleeve is fitted on the second mounting bracket, which realizes the detachable installation of the protective sleeve and has the advantage of facilitating the cleaning or replacement of the protective sleeve in the future.

[0009] The drain pipe installed on the front water tank allows the liquid inside the tank to be discharged outwards, which has the advantage of facilitating the periodic replacement of the heat exchange medium or the export of the heat exchange medium.

[0010] The first connecting pipe and the first connecting hole on the front water tank together realize the connection between the front water tank and the rear water tank, which has the advantage of ensuring the circulation of heat exchange medium in the front and rear water tanks.

[0011] The pre-drilled holes on the front water tank allow the protective sleeve to be installed, ensuring that the protective sleeve can fit precisely with the heated tank.

[0012] Preferably, the flue body is equipped with a base frame, a positioning frame, and a flue pipe, and the flue body has an insertion hole; the flue pipe is used to discharge flue gas, and the insertion hole is for the protective sleeve to pass through.

[0013] In the design, the base frame installed on the flue body provides support and fixation for the flue body, which has the advantages of ensuring the stability of the flue body after installation and preventing shaking during equipment operation.

[0014] The positioning frame mounted on the flue body enables the positioning of the front and rear water tanks, which has the advantages of ensuring the accurate assembly position of the front and rear water tanks with the flue body and improving the overall structural sealing.

[0015] The exhaust pipe installed on the flue body enables the exhaust of flue gas from inside the flue body to the outside, which has the advantages of ensuring smooth flue gas flow and preventing flue gas from stagnating in the flue.

[0016] The insertion hole on the flue body allows the protective sleeve to be inserted, which has the advantage of ensuring that the protective sleeve can be smoothly extended into the interior of the flue body.

[0017] Preferably, the positioning frame is used to position and install the front water tank and the rear water tank, and the positioning frame is provided with a third connecting hole for connecting the front water tank and the rear water tank.

[0018] In the design, the positioning frame enables the positioning and installation of the front and rear water tanks, and has the advantages of ensuring uniform assembly gaps between the front and rear water tanks and the flue body, and improving the overall structural stability of the equipment.

[0019] The third connecting hole on the positioning frame enables the connection between the front and rear water tanks, providing an additional circulation channel for the heat exchange medium while avoiding the interruption of water circulation caused by blockage of a single channel.

[0020] Preferably, the rear water tank is equipped with an inlet pipe and a second connecting pipe, and has a second connecting hole; the inlet pipe is used to inject liquid, and the second connecting pipe and the second connecting hole are used to connect to the front water tank; a pressure relief valve is installed between the second connecting pipe and the first connecting pipe.

[0021] In the design, the liquid inlet pipe installed on the rear water tank enables the injection of liquid into the rear water tank, which has the advantage of quickly replenishing the heat exchange medium without disassembling the equipment.

[0022] The second connecting pipe and the second connecting hole on the rear water tank together realize the connection between the rear water tank and the front water tank. It has the advantages of forming a multi-channel water circulation and improving the flow efficiency of the heat exchange medium when combined with the connection structure of the front water tank.

[0023] The pressure relief valve installed between the second connecting pipe and the first connecting pipe enables the regulation of the pressure in the front and rear water tanks, which has the advantages of preventing excessive pressure in the equipment from damaging the structure and ensuring the safe operation of the equipment.

[0024] Preferably, the location of the third connecting hole matches the location of the first connecting hole and the second connecting hole.

[0025] In the design, the third connecting hole on the positioning frame is positioned to match the first connecting hole in the front water tank and the second connecting hole in the rear water tank, achieving precise alignment of the three connecting holes. This ensures smooth flow of the heat exchange medium between the front and rear water tanks and the positioning frame, while avoiding medium stagnation due to channel misalignment, which can affect heat exchange efficiency.

[0026] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model achieves the effect of ensuring waste heat recovery efficiency and reducing maintenance difficulty by setting a heating tank connected to the rear water tank, a protective sleeve that can be detachably installed on the front water tank and movably fitted on the outside of the heating tank, and a flue body connected to the front water tank and the rear water tank respectively.

[0027] The flue body allows the flue gas from the incineration boiler to pass through. Both the front and rear water tanks are used for water storage and heat exchange. The heating tank on the rear water tank can increase the heating area of ​​the front and rear water tanks, so that the waste heat in the flue gas in the flue body can be more fully exchanged with the water in the tank, thus providing support for the waste heat recovery efficiency. Meanwhile, the protective sleeve is attached to the outside of the heating tank, which can directly block the smoke and dust in the flue gas from contacting the heating tank, and prevent the smoke and dust from adhering and accumulating on the surface of the heating tank, thus reducing the heat exchange area and maintaining the waste heat recovery efficiency stably, solving the problem of the waste heat recovery efficiency of existing equipment being reduced due to the influence of smoke and dust. In addition, the protective cover can be detachably installed on the front water tank. When dust adheres to the surface of the protective cover, there is no need to disassemble the core heat exchange structure such as the heating tank. The protective cover can be cleaned or replaced simply by removing it from the front water tank, which greatly simplifies the maintenance process, reduces the difficulty and cost of maintenance, and solves the problem of high maintenance costs of existing equipment. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the exploded structure from one perspective of the present invention; Figure 4 This is an exploded structural diagram of the present invention from another perspective; Figure 5 This is a schematic diagram of the flue body structure of this utility model.

[0029] In the diagram: 1. Front water tank; 11. First mounting bracket; 12. Drain pipe; 13. Protective sleeve; 131. Second mounting bracket; 14. First connecting pipe; 15. Reserved hole; 16. First connecting hole; 2. Rear water tank; 21. Second connecting hole; 22. Second connecting pipe; 23. Liquid inlet pipe; 24. Heating tank; 3. Pressure relief valve; 4. Flue body; 41. Base frame; 42. Positioning bracket; 421. Third connecting hole; 43. Exhaust pipe; 44. Insertion hole. Detailed Implementation

[0030] 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. Example

[0031] like Figures 1 to 5As shown, one embodiment of this utility model is a waste heat storage device for a municipal solid waste incineration boiler, including a front water tank 1 and a rear water tank 2. Both the front water tank 1 and the rear water tank 2 are used for water storage and heat exchange. The front water tank 1 and the rear water tank 2 are respectively fixedly installed at the front and rear ends of the flue body 4, and the front water tank 1 and the rear water tank 2 are interconnected to form a closed heat exchange medium circulation space.

[0032] A first mounting bracket 11 is fixedly installed on the outer wall of the front water tank 1. A second mounting bracket 131 is detachably installed on the first mounting bracket 11 by bolts. A protective sleeve 13 is fixedly installed on the inner side of the second mounting bracket 131. The protective sleeve 13 passes through the reserved hole 15 opened on the front water tank 1 and the insertion hole 44 opened on the flue body 4 in sequence, and the end of the protective sleeve 13 away from the second mounting bracket 131 extends into the interior of the flue body 4. The second mounting bracket 131 is used to cooperate with the first mounting bracket 11 to limit the installation position of the protective sleeve 13 and prevent the protective sleeve 13 from shifting during equipment operation.

[0033] A drain pipe 12 is fixedly installed at the bottom of the front water tank 1. The drain pipe 12 is connected to the inside of the front water tank 1 and is used to discharge the heat exchange liquid inside the front water tank 1. A first connecting pipe 14 is fixedly installed on the side of the front water tank 1 near the rear water tank 2. The first connecting pipe 14 is connected to the inside of the front water tank 1 and is used to connect the gas inside the front water tank 1 and the rear water tank 2. A first connecting hole 16 is opened on the side of the front water tank 1 near the positioning frame 42. The first connecting hole 16 is connected to the inside of the front water tank 1, and the opening position of the first connecting hole 16 matches the opening position of the third connecting hole 421 on the positioning frame 42 to ensure that the two can be precisely aligned. The reserved hole 15 opened on the front water tank 1 matches the opening position of the insertion hole 44 on the flue body 4, providing an adaptation channel for the installation of the protective sleeve 13.

[0034] The flue body 4 is used to allow the flue gas generated by the incineration boiler to pass through. A base frame 41 is fixedly installed at the bottom of the flue body 4. The base frame 41 is used to fix the flue body 4, so that the flue body 4 can be stably placed on the installation surface. A positioning frame 42 is also fixedly installed on the flue body 4 and the base frame 41. The positioning frame 42 is respectively attached to the side wall of the front water tank 1 and the rear water tank 2 on the opposite side to position the installation position of the front water tank 1 and the rear water tank 2, so as to ensure that the assembly gap between the front water tank 1 and the rear water tank 2 and the flue body 4 is uniform. The positioning frame 42 is provided with a third connecting hole 421, which is aligned with the first connecting hole 16 of the front water tank 1 and the second connecting hole 21 of the rear water tank 2, respectively, to allow the liquid inside the front water tank 1 and the rear water tank 2 to flow and supplement the circulation path of the heat exchange medium. A flue pipe 43 is installed at the top of the flue body 4. The flue pipe 43 is connected to the inside of the flue body 4 and is used to discharge the flue gas after heat exchange inside the flue body 4. Insertion holes 44 are opened at both the front and rear ends of the side wall of the flue body 4. The insertion holes 44 are connected to the inside of the flue body 4 and are used for the protective sleeve 13 to pass through, so that the protective sleeve 13 can extend into the inside of the flue body 4 and cooperate with the heating groove 24.

[0035] A second connecting hole 21 is provided on the side of the rear water tank 2 near the positioning frame 42. The second connecting hole 21 communicates with the interior of the rear water tank 2, and the opening position of the second connecting hole 21 matches the opening position of the third connecting hole 421 on the positioning frame 42, ensuring that the two can be precisely aligned. A second connecting pipe 22 is fixedly installed on the side of the rear water tank 2 near the front water tank 1. The second connecting pipe 22 is connected to the inside of the rear water tank 2 and is used to connect the gas inside the rear water tank 2 with the gas inside the front water tank 1. A pressure relief valve 3 is installed between the end of the first connecting pipe 14 away from the front water tank 1 and the end of the second connecting pipe 22 away from the rear water tank 2. The pressure relief valve 3 is connected to the inside of the first connecting pipe 14 and the second connecting pipe 22 respectively, and is used to regulate the pressure inside the rear water tank 2 and the front water tank 1. When the pressure inside the tank exceeds the preset value, the pressure is automatically released to ensure the safety of equipment use. A liquid inlet pipe 23 is fixedly installed on the top of the rear water tank 2. The liquid inlet pipe 23 is connected to the inside of the rear water tank 2 and is used to inject heat exchange liquid into the rear water tank 2. A heat receiving tank 24 is connected and installed on the side of the rear water tank 2 near the flue body 4. The end of the heat receiving tank 24 away from the rear water tank 2 is movably inserted into the inside of the protective sleeve 13. At the same time, its outer wall is in clearance fit with the inner wall of the protective sleeve 13 and extends completely into the flue body 4. This is used to increase the contact area between the rear water tank 2 and the flue gas in the flue body 4, so as to improve the heat exchange efficiency.

[0036] When using this utility model, it is confirmed that the front water tank 1, the rear water tank 2 and the flue body 4 are firmly assembled and internally connected. The protective sleeve 13 is fitted onto the outside of the heating tank 24 after passing through the reserved hole 15 and the insertion hole 44. The second mounting bracket 131 is reliably fixed to the first mounting bracket 11.

[0037] Open the inlet pipe 23 and inject the heat exchange medium into the rear water tank 2. The medium flows into the front water tank 1 through the connecting structure.

[0038] The flue gas from the incineration boiler is introduced into the flue body 4, where it exchanges heat with the heat exchange tank 24. The medium circulates and stores heat in the front and rear water tanks. After heat exchange, the flue gas is discharged through the exhaust pipe 43. The pressure relief valve 3 adjusts the pressure in the tank in real time.

[0039] After a period of use and when the maintenance time is reached, the machine can be stopped and the second mounting bracket 131 can be removed to take out the protective cover 13 for cleaning. After cleaning, it can be reinstalled and fixed.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A waste heat storage device for a municipal solid waste incineration boiler, comprising a front water tank (1), a rear water tank (2), and a flue body (4), wherein the front water tank (1) and the rear water tank (2) are respectively installed at the front and rear ends of the flue body (4) and are interconnected, characterized in that: The flue body (4) is used to allow flue gas from the incineration boiler to pass through; the front water tank (1) and the rear water tank (2) are both used for water storage and heat exchange; the rear water tank (2) is connected to a heating tank (24), which is used to increase the heating area; a protective sleeve (13) is detachably installed on the front water tank (1), which is movably fitted on the outside of the heating tank (24) to protect the heating tank (24) from the influence of smoke and dust.

2. The waste heat storage device for a municipal solid waste incineration boiler according to claim 1, characterized in that, A first mounting bracket (11) is installed on the front water tank (1), and a second mounting bracket (131) is detachably installed on the first mounting bracket (11). The protective sleeve (13) is installed on the second mounting bracket (131). The front water tank (1) is provided with a drain pipe (12), a first connecting pipe (14), a first connecting hole (16), and a reserved hole (15). The drain pipe (12) is used to drain liquid, the first connecting pipe (14) and the first connecting hole (16) are used to connect to the rear water tank (2), and the reserved hole (15) is used for the protective sleeve (13) to pass through.

3. The waste heat storage device for a municipal solid waste incineration boiler according to claim 1, characterized in that, The flue body (4) is equipped with a base frame (41), a positioning frame (42) and a flue pipe (43). The flue body (4) has an insertion hole (44). The flue pipe (43) is used to discharge flue gas, and the insertion hole (44) is for the protective sleeve (13) to pass through.

4. The waste heat storage device for a municipal solid waste incineration boiler according to claim 3, characterized in that, The positioning frame (42) is used to position and install the front water tank (1) and the rear water tank (2). The positioning frame (42) is provided with a third connecting hole (421), which is used to connect the front water tank (1) and the rear water tank (2).

5. The waste heat storage device for a municipal solid waste incineration boiler according to claim 1, characterized in that, The rear water tank (2) is equipped with an inlet pipe (23) and a second connecting pipe (22), and has a second connecting hole (21); the inlet pipe (23) is used to inject liquid, and the second connecting pipe (22) and the second connecting hole (21) are used to connect the front water tank (1); a pressure relief valve (3) is installed between the second connecting pipe (22) and the first connecting pipe (14).

6. A waste heat storage device for a municipal solid waste incineration boiler according to claim 4, characterized in that, The location of the third connecting hole (421) matches the location of the first connecting hole (16) and the second connecting hole (21).

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