Water-cooling flue of industrial silicon heating furnace

Abstract

The utility model relates to the technical field of industrial silicon heating furnace equipment, in particular to a water cooling flue of an industrial silicon heating furnace. The water-cooling flue of the industrial silicon heating furnace comprises a flue body, a spiral water-cooling channel is arranged on the inner wall of the flue body, the water-cooling channel is tightly attached to the inner wall of the flue body, and a water inlet and a water outlet are formed in the two ends of the water-cooling channel respectively. The flue body is of a sectional structure, every two adjacent sections of the flue body are connected through a flange, and a sealing gasket is arranged between the connecting faces of the flanges. The periphery of the flue body is sequentially wrapped with a heat preservation layer and an aluminum foil reflecting layer from inside to outside, the aluminum foil reflecting layer can effectively reflect heat emitted outwards by the flue, and the heat preservation effect is further improved.

Description

Technical Field

[0001] This utility model relates to the technical field of industrial silicon thermal furnace equipment, specifically to a water-cooled flue of an industrial silicon thermal furnace. Background Technology

[0002] During the production process of industrial silicon thermoelectric furnaces, a large amount of high-temperature flue gas is generated, which needs to be cooled and transported through water-cooled flues. Traditional water-cooled flues for industrial silicon thermoelectric furnaces have several shortcomings in practical use. For example, uneven water distribution inside the flue leads to localized overheating, affecting the water cooling effect and the flue's service life; additionally, the flue's connection structure is not robust enough, making it prone to leakage; and the flue's insulation performance is also poor, resulting in significant heat loss and hindering energy conservation.

[0003] To address these issues, existing patents have proposed various solutions, but room for improvement remains. For instance, some patents optimize water flow distribution by improving the layout of water-cooled pipes, but these structures are complex, increasing manufacturing costs and installation difficulty; others have made improvements in connection sealing, but have insufficient consideration for insulation. Therefore, it is necessary to further improve the structure of water-cooled flues for industrial silicon thermoelectric furnaces to enhance their cooling effect, stability, and energy-saving performance. Utility Model Content

[0004] The purpose of this invention is to provide an improved structure for an industrial silicon thermal furnace water-cooled flue, in order to solve problems such as uneven water flow distribution, unstable connection structure, and poor thermal insulation performance in the prior art.

[0005] To solve the above-mentioned technical problems, the present invention provides a water-cooled flue for an industrial silicon thermoelectric furnace, comprising a flue body, wherein the inner wall of the flue body is provided with a spiral water-cooling channel, and the water-cooling channel is tightly fitted to the inner wall of the flue body, wherein the two ends of the water-cooling channel are respectively provided with an inlet and an outlet; the flue body adopts a segmented structure, and adjacent segments of the flue body are connected by flanges, and a sealing gasket is provided between the connecting surfaces of the flanges; the outer periphery of the flue body is wrapped with an insulation layer and an aluminum foil reflective layer from the inside to the outside, the aluminum foil reflective layer can effectively reflect the heat emitted by the flue, further improving the insulation effect.

[0006] As a preferred technical solution of this utility model, the inner wall of the flue body is coated with a high-temperature resistant and anti-corrosion coating to prevent the high temperature and flue gas inside the flue from corroding the flue body and extend the service life of the flue.

[0007] As a preferred technical solution of this utility model, an inlet regulating valve is connected to the water inlet to control the water flow rate. The water flow rate is adjusted by controlling the opening of the inlet regulating valve, thereby further optimizing the water flow distribution.

[0008] As a preferred embodiment of this utility model, the water-cooling channel is formed by a continuous water-cooling pipe, and the pitch of the spiral water-cooling channel gradually increases from the inlet end to the outlet end. This allows the water flow velocity in the channel to gradually slow down, which is conducive to the full exchange of heat and improves the cooling effect.

[0009] As a preferred embodiment of this utility model, the sealing gasket is made of high-temperature heat-resistant fluororubber, and multiple protrusions are evenly distributed on the sealing gasket. The protrusions can increase the contact area between the sealing gasket and the flange connection surface, thereby improving the sealing effect.

[0010] As a preferred technical solution of this utility model, the insulation layer is ceramic fiber cotton, and the thickness of the insulation layer varies along the length of the flue body. The insulation layer is thicker near the water inlet and thinner near the water outlet. This allows the thickness of the insulation layer to be reasonably adjusted according to the heat loss in different parts, thereby further improving the insulation effect.

[0011] The advantages of this utility model compared with the prior art are as follows:

[0012] 1. This water-cooled flue, by setting up a spiral water-cooling channel with gradually increasing pitch, can make the water entering the water-cooled flue evenly distributed, avoid the phenomenon of local overheating, improve the water cooling effect, and extend the service life of the flue.

[0013] 2. This water-cooled flue uses a segmented connection structure with sealing gaskets to ensure the stability and sealing of the flue connection, effectively preventing flue gas leakage.

[0014] 3. The application of insulation layer and aluminum foil reflective layer in this water-cooled flue greatly reduces heat loss and improves the energy-saving performance of the water-cooled flue. Attached Figure Description

[0015] Figure 1 This is a structural diagram of a water-cooled flue of an industrial silicon thermoelectric furnace according to this utility model.

[0016] Figure 2 This is a cross-sectional three-dimensional structural diagram of the water-cooled flue of an industrial silicon thermal furnace according to this utility model.

[0017] Figure 3 This is a structural diagram of the water-cooled flue of an industrial silicon thermal furnace according to this utility model.

[0018] Figure 4 This is a schematic diagram showing the connection of multiple flue bodies in the water-cooled flue of an industrial silicon thermal furnace according to this utility model.

[0019] As shown in the figure:

[0020] 1. Flue body; 2. Water cooling channel; 3. Water inlet; 4. Water outlet; 5. Flange; 6. Sealing gasket; 7. Insulation layer; 8. Aluminum foil reflective layer; 9. Water inlet regulating valve; 10. Multiple protrusions. Detailed Implementation

[0021] 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.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example 1:

[0024] As per the instruction manual Figure 1-4 As shown, a water-cooled flue for an industrial silicon thermal furnace includes a flue body 1. The inner wall of the flue body 1 is coated with a high-temperature resistant and anti-corrosion coating to prevent corrosion of the flue body 1 by the high temperature and flue gas inside the flue, thereby extending the service life of the flue. The inner wall of the flue body 1 is provided with a spiral water-cooling channel 2, which is tightly fitted to the inner wall of the flue body 1. The water-cooling channel 2 is formed by a continuous water-cooling pipe, and the pitch of the spiral water-cooling channel 2 gradually increases from the inlet 3 end to the outlet 4 end. This allows the water flow velocity in the channel to gradually slow down, which is conducive to the full exchange of heat and improves the cooling effect. The two ends of the water-cooling channel 2 are respectively provided with an inlet 3 and an outlet 4. An inlet regulating valve 9 is connected to the inlet 3. The water flow rate is adjusted by controlling the opening of the inlet regulating valve 9, thereby further optimizing the water flow distribution.

[0025] In this utility model, the flue body 1 adopts a segmented structure. Two adjacent flue body segments 1 are connected by flanges 5, and a sealing gasket 6 is provided between the connecting surfaces of the flanges 5. The sealing gasket 6 is made of high-temperature heat-resistant fluororubber, and multiple protrusions 10 are evenly distributed on the sealing gasket 6. The protrusions can increase the contact area between the sealing gasket 6 and the connecting surface of the flange 5, thereby improving the sealing effect.

[0026] In this invention, the outer periphery of the flue body 1 is wrapped with an insulation layer 7 and an aluminum foil reflective layer 8 from the inside out. The aluminum foil reflective layer 8 can effectively reflect the heat emitted by the flue, further improving the insulation effect. The insulation layer 7 is made of ceramic fiber cotton, and the thickness of the insulation layer 7 varies along the length of the flue body 1. The insulation layer 7 is thicker near the inlet 3 and thinner near the outlet 4. This allows the thickness of the insulation layer 7 to be adjusted reasonably according to the heat loss in different parts, further improving the insulation effect.

[0027] In specific implementation of this utility model, two adjacent sections of the flue body 1 are connected together by bolts via flanges 5, and a sealing gasket 6 is placed on the connecting surface of the flange 5. The protrusions on the sealing gasket 6 increase the contact with the connecting surface of the flange 5, making the connection tighter and preventing leakage. An insulation layer 7 made of heat insulation material is wrapped around the outer periphery of the flue body 1, and an aluminum foil reflective layer 8 is pasted on the outer surface of the insulation layer 7 to improve the heat insulation and heat reflection effect. A high-temperature resistant and anti-corrosion coating is applied to the inner wall of the flue body 1, which can effectively prevent corrosion of the flue body 1 by high temperature and flue gas.

[0028] By adjusting the opening of the inlet regulating valve 9, the coolant enters from the inlet 3 and cools the flue body 1 and its interior, and can also regulate parameters such as the temperature and flow rate of the flue gas inside the flue.

[0029] The present invention and its embodiments have been described above. This description is not restrictive, and the specific embodiments shown are only one of the embodiments of the present invention. The actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A water-cooled flue for an industrial silicon thermal furnace, comprising a flue body (1), characterized in that: The inner wall of the flue body (1) is provided with a spiral water cooling channel (2), and the water cooling channel (2) is closely fitted with the inner wall of the flue body (1). The two ends of the water cooling channel (2) are respectively provided with a water inlet (3) and a water outlet (4). The flue body (1) adopts a segmented structure. Two adjacent flue body segments (1) are connected by flanges (5), and a sealing gasket (6) is provided between the connecting surfaces of the flanges (5). The outer periphery of the flue body (1) is wrapped with an insulation layer (7) and an aluminum foil reflective layer (8) from the inside to the outside. The aluminum foil reflective layer (8) can effectively reflect the heat emitted by the flue and further improve the insulation effect.

2. The water-cooled flue of an industrial silicon thermal furnace according to claim 1, characterized in that: The inner wall of the flue body (1) is coated with a high-temperature resistant and corrosion-resistant coating.

3. A water cooled flue for an industrial silicon furnace as claimed in claim 1 wherein: The inlet (3) is connected to an inlet regulating valve (9) to control the inlet flow rate.

4. A water cooled flue for an industrial silicon furnace as claimed in claim 1 wherein: The water-cooling channel (2) is formed by a continuous water-cooling pipe, and the pitch of the spiral water-cooling channel (2) gradually increases from the inlet (3) end to the outlet (4) end.

5. A water cooled flue for an industrial silicon furnace as claimed in claim 1 wherein: The sealing gasket (6) is made of high-temperature heat-resistant fluororubber, and multiple protrusions (10) are evenly distributed on the sealing gasket (6).

6. A water cooled flue for an industrial silicon furnace as claimed in claim 1 wherein: The insulation layer (7) is ceramic fiber cotton, and the thickness of the insulation layer (7) varies along the length of the flue body (1). The insulation layer (7) is thicker near the inlet (3) and thinner near the outlet (4).

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