A waste heat recovery type boiler instrument tube heat tracing device

Abstract

This utility model relates to the field of boiler technology and discloses a waste heat recovery type boiler instrument tube heat tracing device, including a heat tracing pipe, an auxiliary pipe provided on the outside of the heat tracing pipe, and multiple sets of dispersion pipes uniformly arranged in the interlayer between the auxiliary pipe and the heat tracing pipe. The upper side of the multiple sets of dispersion pipes is connected to a first main pipe, the lower side of the multiple sets of dispersion pipes is connected to a second main pipe, the right side of the second main pipe is connected to a first connecting pipe, the right side of the first connecting pipe is connected to an antifreeze tank, a heating device is installed on the right side of the antifreeze tank, and a high-pressure water pump is installed on the left side of the antifreeze tank. This novel solution can perform heat exchange on the heat tracing pipe by setting up an auxiliary pipe, dispersion pipes, a first main pipe, a second main pipe, a first connecting pipe, an antifreeze tank, a heating device, a high-pressure water pump, and a second connecting pipe in coordination. During the heat exchange process, heating is carried out by a heat tracing medium, thereby improving the practical stability of the instrument panel.

Description

Technical Field

[0001] This utility model belongs to the field of boiler technology, specifically a waste heat recovery type boiler instrument tube heat tracing device. Background Technology

[0002] Currently, existing boiler instrument tube heat tracing devices have many shortcomings. On the one hand, traditional heat tracing methods, such as steam heat tracing, require the laying of complex steam pipeline systems, which not only has high installation costs but also makes steam prone to leakage, causing heat loss and potentially leading to safety accidents such as burns. At the same time, the temperature control of steam heat tracing is not precise enough to meet the heat tracing requirements of instrument tubes under different operating conditions. On the other hand, although electric heat tracing devices have improved temperature control, they suffer from uneven heat tracing. Some areas may experience localized overheating of the instrument tubes due to excessive heat concentration, affecting the service life of the instrument tubes and instruments. Meanwhile, some areas may not be able to effectively prevent condensation of the medium due to insufficient heat. Therefore, we propose a waste heat recovery type boiler instrument tube heat tracing device. Utility Model Content

[0003] In view of the above situation and to overcome the defects of the prior art, this utility model provides a waste heat recovery type boiler instrument tube heat tracing device, which effectively solves the above problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a waste heat recovery boiler instrument tube heat tracing device, comprising a heat tracing pipe, an auxiliary pipe provided on the outside of the heat tracing pipe, a plurality of sets of dispersion pipes uniformly arranged in the interlayer between the auxiliary pipe and the heat tracing pipe, a first main pipe connected to the upper side of the plurality of sets of dispersion pipes, a second main pipe connected to the lower side of the plurality of sets of dispersion pipes, a first connecting pipe connected to the right side of the second main pipe, an antifreeze tank connected to the right side of the first connecting pipe, a heating device installed on the right side of the antifreeze tank, a high-pressure water pump installed on the left side of the antifreeze tank, a second connecting pipe connected to the left side of the high-pressure water pump, the left side of the second connecting pipe connected to the first main pipe, a protective heat insulation layer provided on the outside of the auxiliary pipe, and an instrument panel connected to the upper side of the heat tracing pipe.

[0005] Preferably, the protective insulation layer includes an aluminum silicate layer and a nano-airbag reflective layer, wherein the aluminum silicate layer is located outside the nano-airbag reflective layer.

[0006] Preferably, the nano-airbag reflective layer includes a surface layer, a middle layer, and an inner layer, wherein the surface layer is located outside the middle layer, and the middle layer is located outside the inner layer.

[0007] Preferably, a fan is provided on the upper side of the auxiliary pipe, and a baffle is connected to the inner wall of the auxiliary pipe.

[0008] Preferably, a protective layer is connected to the outside of the aluminum silicate layer, and the protective layer is made of ceramic fiber.

[0009] Preferably, the heating device is a heating pump.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. By setting up auxiliary pipes, dispersion pipes, first main pipes, second main pipes, first connecting pipes, antifreeze tanks, heating devices, high-pressure water pumps, and second connecting pipes in combination, heat exchange can be performed on the heat tracing pipes. During the heat exchange process, the heat tracing medium is used for heating, thereby improving the practical stability of the instrument panel.

[0012] 2. By setting up an aluminum silicate layer and a nano-airbag reflective layer for heat insulation, the stability of the heat tracing pipe is improved, the influence of external air on the heat tracing pipe is reduced, and the air in the auxiliary pipe is circulated by a fan to improve the stability of the device. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] In the attached diagram:

[0015] Figure 1 This is a schematic diagram of the structure of the waste heat recovery boiler instrument tube heat tracing device of this utility model;

[0016] Figure 2 This is a schematic diagram of the auxiliary tube structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the protective insulation layer structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the nano-airbag reflective layer structure of this utility model.

[0019] In the diagram: 100, heat tracing pipe; 200, auxiliary pipe; 201, fan; 202, baffle; 210, dispersion pipe; 220, first main pipe; 230, second main pipe; 240, first connecting pipe; 250, antifreeze tank; 260, heating device; 270, high-pressure water pump; 280, second connecting pipe; 300, protective insulation layer; 310, aluminum silicate layer; 311, protective layer; 320, nano-airbag reflective layer; 321, surface layer; 322, intermediate layer; 323, inner layer; 400, instrument panel. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 A waste heat recovery boiler instrument tube heat tracing device includes a heat tracing pipe 100, an auxiliary pipe 200 on the outside of the heat tracing pipe 100, and multiple sets of dispersion pipes 210 evenly arranged in the interlayer between the auxiliary pipe 200 and the heat tracing pipe 100. A first main pipe 220 is fixedly connected to the upper side of the multiple sets of dispersion pipes 210, and a second main pipe 230 is fixedly connected to the lower side of the multiple sets of dispersion pipes 210. A first connecting pipe 240 is fixedly connected to the right side of the second main pipe 230, and an antifreeze tank 250 is fixedly connected to the right side of the first connecting pipe 240. A heating device 260 (a heating pump) is fixedly installed on the right side of the antifreeze tank 250. A high-pressure water pump 270 is fixedly installed on the left side of the antifreeze tank 250, and a second connecting pipe 280 is fixedly connected to the left side of the high-pressure water pump 270. The left side of the second connecting pipe 280 is fixedly connected to the first main pipe 220. During use, a protective insulation layer 300 is fixedly installed on the outside of the auxiliary pipe 200. The upper side of the heat pipe 100 is connected to the instrument panel 400. During use, the heating device 260 is activated to heat the antifreeze in the antifreeze tank 250. Then, the antifreeze in the antifreeze tank 250 is sent to the first main pipe 220 through the high-pressure water pump 270 and the second connecting pipe 280. The first main pipe 220 then sends the heated liquid to the distribution pipe 210. The distribution pipe 210 then contacts the heat tracing pipe 100 in the auxiliary pipe 200 for heat exchange. After being heated and cooled, the antifreeze enters the antifreeze tank 250 through the second main pipe 230 and the first connecting pipe 240 for heating. By setting up auxiliary pipe 200, dispersion pipe 210, first main pipe 220, second main pipe 230, first connecting pipe 240, antifreeze tank 250, heating device 260, high-pressure water pump 270, and second connecting pipe 280 in coordination, heat exchange can be performed on the heat tracing pipe 100, thereby improving the practical stability of the instrument panel 400.

[0022] The protective insulation layer 300 includes an aluminum silicate layer 310 and a nano-airbag reflective layer 320. The aluminum silicate layer 310 is located outside the nano-airbag reflective layer 320. By setting the aluminum silicate layer 310 and the nano-airbag reflective layer 320, heat insulation is achieved, thereby improving the stability of the heat tracing pipe 100 and reducing the impact of external air on the heat tracing pipe 100. The nano-airbag reflective layer 320 includes a surface layer 321, a middle layer 322, and an inner layer 323. The surface layer 321 is located outside the middle layer 322, and the middle layer 322 is located outside the inner layer 323. The surface layer 321 and the inner layer 323... All materials are aluminum foil composite materials. The middle layer 322 is made of polyethylene as the airbag shell. The airbag is filled with nanoporous silica and inert gas. By setting the surface layer 321, the middle layer 322 and the inner layer 323, the nano-airbag reflective layer 320 can have heat preservation, heat insulation and moisture-proof functions. The thermal conductivity is only 0.021w / m・K at room temperature, which can effectively reduce heat loss. When used on the outside of the heat tracing pipe 100, it can effectively retain the heat of the heat tracing pipe 100, improve the heat tracing effect, and at the same time have excellent oxidation resistance and corrosion resistance.

[0023] A fan 201 is installed on the upper side of the auxiliary pipe 200, and a baffle 202 is connected to the inner wall of the auxiliary pipe 200. By installing the fan 201, the air in the auxiliary pipe 200 is circulated, which improves the stability of the device. A protective layer 311 is fixedly connected to the outer side of the aluminum silicate layer 310. The protective layer 311 is made of ceramic fiber. By installing the protective layer 311, the outer side of the device is protected, which improves the stability of the device.

Claims

1. A waste heat recovery boiler instrument tube tracing device, characterized by: The system includes a heat tracing pipe (100), an auxiliary pipe (200) is provided on the outside of the heat tracing pipe (100), and multiple sets of dispersion pipes (210) are uniformly arranged in the interlayer between the auxiliary pipe (200) and the heat tracing pipe (100). A first main pipe (220) is connected to the upper side of the multiple sets of dispersion pipes (210), and a second main pipe (230) is connected to the lower side of the multiple sets of dispersion pipes (210). A first connecting pipe (240) is connected to the right side of the second main pipe (230), and the right side of the first connecting pipe (240) is connected to... An antifreeze tank (250) is connected to the antifreeze tank (250). A heating device (260) is installed on the right side of the antifreeze tank (250). A high-pressure water pump (270) is installed on the left side of the antifreeze tank (250). A second connecting pipe (280) is connected to the left side of the high-pressure water pump (270). The left side of the second connecting pipe (280) is connected to the first main pipe (220). A protective insulation layer (300) is provided on the outside of the auxiliary pipe (200). An instrument panel (400) is connected to the upper side of the heat tracing pipe (100).

2. A waste heat recovery boiler instrument tube tracing device as claimed in claim 1, wherein: The protective insulation layer (300) includes an aluminum silicate layer (310) and a nano-airbag reflective layer (320), with the aluminum silicate layer (310) located on the outside of the nano-airbag reflective layer (320).

3. A waste heat recovery boiler instrument tube tracing apparatus according to claim 2, wherein: The nano-airbag reflective layer (320) includes a surface layer (321), a middle layer (322) and an inner layer (323). The surface layer (321) is located outside the middle layer (322), and the middle layer (322) is located outside the inner layer (323).

4. A waste heat recovery boiler instrument tube tracing apparatus as claimed in claim 1, wherein: A fan (201) is provided on the upper side of the auxiliary pipe (200), and a baffle (202) is connected to the inner wall of the auxiliary pipe (200).

5. A waste heat recovery type boiler instrument tube heat tracing device according to claim 2, characterized in that: A protective layer (311) is connected to the outside of the aluminum silicate layer (310), and the protective layer (311) is made of ceramic fiber.

6. A waste heat recovery boiler instrument tube tracing apparatus as claimed in claim 1, wherein: The heating device (260) is a heating pump.

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