Boiler flue waste heat recovery plate ring structure

Abstract

The utility model discloses a boiler flue waste heat recovery plate ring structure in the technical field of boiler flue gas recovery, the boiler flue waste heat recovery plate ring structure comprises a recovery plate and a circulating water pipe, the middle of the recovery plate is hollowed out, a plurality of grooves are formed in the two opposite sides of the recovery plate, and the circulating water pipe is connected to the grooves. By adopting the plate ring structure, the contact area of flue gas and a heat exchange medium is increased, so that the heat recovery efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to technical fields, specifically relates to a boiler flue waste heat recovery plate ring structure. BACKGROUND

[0002] In the field of boiler flue gas recovery technology, the traditional flue recovery structure often has problems such as low heat recovery efficiency, complex structure and high maintenance cost. The flue recovery device in the prior art mostly adopts straight pipe or simple curved pipe structure, and these structures have deficiencies in heat transfer efficiency and flue gas flow resistance. The straight pipe structure lacks sufficient heat exchange area when the flue gas flows in the pipe, resulting in low heat recovery efficiency. Although the curved pipe structure increases the heat exchange area to some extent, the flue gas flow in the pipe is prone to vortex, increasing the flow resistance, which not only affects the smooth discharge of flue gas, but also reduces the heat recovery effect. In addition, the flue recovery device in the prior art also has many inconveniences in installation and maintenance. Due to the complex structure, a lot of manpower and material resources are needed during installation, and frequent disassembly and cleaning are also needed during daily maintenance, increasing the maintenance cost. Therefore, the market urgently needs a boiler flue recovery structure with simple structure, high heat recovery efficiency and easy maintenance. SUMMARY

[0003] The utility model intends to provide, to solve the existing boiler flue recovery device utilizes the pipe heat absorption heat recovery efficiency, the structure is complex and the problem of high maintenance cost.

[0004] To solve the above technical problems, the utility model provides the following technical scheme: a boiler flue waste heat recovery plate ring structure, comprising a recovery plate and a circulating water pipe, the middle of the recovery plate is hollow, the opposite sides of the recovery plate are provided with a plurality of grooves, the circulating water pipe is connected on the plurality of grooves, and the surface of the circulating water pipe is corrugated.

[0005] The utility model works as follows: the recovery plate is installed in the boiler flue recovery device, the circulating water pipe is installed on the recovery plate, at this time, the hollow part of the recovery plate is uniformly provided with the circulating water pipe, the circulating water pipe flows into the circulating water, the flue gas generated by the boiler is absorbed by the hot gas when passing through the circulating water pipe, the corrugated part of the circulating water pipe can slow down the flow rate of the flue gas and increase the contact area with the flue gas, thereby increasing the efficiency of flue gas heat absorption.

[0006] The beneficial effects of this utility model are as follows: 1. By adopting a plate-ring structure, the contact area between flue gas and the heat exchange medium is increased, thereby improving heat recovery efficiency. When the flue gas flows through the plate-ring structure, it can fully exchange heat with the heat exchange medium, effectively recovering the waste heat in the flue gas and improving energy utilization. 2. The plate-ring structure design makes the flue gas flow more smoothly in the pipeline, reducing the generation of eddies and thus reducing flow resistance. This not only helps the flue gas to be discharged smoothly, but also reduces the energy loss of the flue gas in the pipeline, further improving the heat recovery effect. 3. The boiler flue gas recovery plate-ring structure of this utility model is simple, easy to install, and does not require frequent disassembly and cleaning in daily maintenance. This greatly reduces installation and maintenance costs and improves the reliability and service life of the equipment. 4. The plate-ring structure design also enhances the stability of the entire recovery structure, enabling it to withstand greater flue gas pressure and temperature fluctuations, improving the safety and reliability of the equipment.

[0007] Furthermore, the multiple grooves are symmetrically arranged in pairs, and there are multiple circulating water pipes, which are straight and horizontally arrayed within the multiple grooves. This arrangement of the circulating water pipes ensures that the boiler flue gas can exchange heat evenly with the circulating water pipes.

[0008] Furthermore, the circulating water pipe is a flexible, serpentine pipe, which is sequentially coiled and connected within multiple grooves. This serpentine design allows for a more compact and tortuous layout of the circulating water pipe on the recovery plate, increasing the contact length between the flue gas and the circulating water pipe during flow, thereby improving the heat exchange area and facilitating more thorough absorption of heat from the flue gas.

[0009] Furthermore, the depth of the groove is the same as the diameter of the circulating water pipe. By adjusting the dimensions of the groove and the circulating water pipe, the recovery plate can protect the circulating water pipe, preventing damage during assembly.

[0010] Furthermore, the spacing between the multiple grooves is the same. This groove spacing further enhances the uniformity of contact between the boiler flue gas and the circulating water pipe.

[0011] Furthermore, the spacing between the circulating water pipes and the recovery plate connected at both ends is the same as the width of the groove. This positioning of the circulating water pipes at both ends ensures that the flue gas at both ends can also undergo sufficient heat exchange. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a boiler flue waste heat recovery plate ring structure according to the present invention;

[0013] Figure 2 for Figure 1 Schematic diagram of the greywater pipeline;

[0014] Figure 3 For Figure 1 Structure diagram of the water pipe. DETAILED DESCRIPTION

[0015] Further described in detail by the specific embodiments as follows:

[0016] The reference signs in the attached drawings of the specification include: the recovery plate 1, the circulating water pipe 2, the columnar circulating water pipe 201, and the snake-form circulating water pipe 202.

[0017] Example 1 is basically as shown in the attached Figure 1 and the attached Figure 3 : a boiler flue recovery plate ring structure, including the recovery plate 1 and the circulating water pipe 2, the middle of the recovery plate 1 is hollow, the upper and lower sides of the recovery plate 1 are provided with 32 grooves, the spacing between the grooves is the same, the 32 grooves are symmetrical in pairs, the surface of the circulating water pipe 2 is corrugated, the circulating water pipe 2 is a snake-form circulating water pipe 202 that can be bent, the depth of the groove is the same as the diameter of the snake-form circulating water pipe 202, the snake-form circulating water pipe 202 is sequentially and slidably connected in the 32 grooves from left to right, and the spacing between the snake-form circulating water pipes 202 at the left and right ends and the recovery plate 1 at the left and right sides is the same as the width of the groove.

[0018] Example 2 is basically as shown in the attached Figure 2 : the surface of the circulating water pipe 2 is corrugated, and the circulating water pipe 2 is a columnar circulating water pipe 201.

[0019] The specific implementation process is as follows: the flue gas generated by the boiler enters the recovery plate 1 ring structure through the flue, the recovery plate 1 is installed in the boiler flue recovery device, and the circulating water pipe 2 is installed on the recovery plate 1, at this time, the hollow part of the recovery plate 1 is uniformly provided with the circulating water pipe 2, the circulating water pipe 2 flows into circulating water, and the flue gas generated by the boiler is absorbed by the hot gas when passing through the circulating water pipe 2, the corrugated part of the circulating water pipe 2 can slow down the flow rate of the flue gas while increasing the area of contact with the flue gas, thereby increasing the efficiency of heat absorption of the flue gas. Due to the optimized design of the plate ring structure, the heat exchange medium can uniformly and efficiently absorb the heat in the flue gas and take it away for use in other heating occasions, thereby realizing the recovery of the waste heat of the flue gas. At the same time, the design of the plate ring structure also takes into account the flow resistance of the flue gas. Through reasonable flow channel design and plate ring layout, the vortex and energy loss generated in the flow process of the flue gas are reduced, and smooth discharge of the flue gas is ensured.

Claims

1. A boiler flue waste heat recovery plate ring structure, characterized in that: It includes a recycling plate and a circulating water pipe. The recycling plate has a hollow center and multiple grooves on opposite sides. The circulating water pipe is connected to the multiple grooves and has a corrugated surface.

2. The boiler flue waste heat recovery plate ring structure according to claim 1, characterized in that: The multiple grooves are symmetrical in pairs, and there are multiple circulating water pipes. The circulating water pipes are straight and are arranged horizontally in the multiple grooves.

3. The boiler flue waste heat recovery plate ring structure according to claim 1, characterized in that: The circulating water pipe is a flexible serpentine pipe, which is coiled and connected in sequence in multiple grooves.

4. A boiler flue waste heat recovery plate ring structure according to claim 2 or 3, characterized in that: The depth of the groove is the same as the diameter of the circulating water pipe.

5. The boiler flue waste heat recovery plate ring structure according to claim 4, characterized in that: The spacing between the plurality of grooves is the same.

6. The boiler flue waste heat recovery plate ring structure according to claim 5, characterized in that: The spacing between the circulating water pipes and the recovery plate connected at both ends is the same as the width of the groove.

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