A high temperature circulating fan volute

Abstract

The utility model discloses a high temperature circulating fan volute belongs to high temperature flue gas treatment equipment technical field, including left casing and with left casing's right casing is connected, its characterized in that: left casing, right casing in all pouring has the refractory castable layer, is seted up in left casing and has the smoke cavity no.

Description

Technical Field

[0001] This utility model relates to the technical field of high-temperature flue gas treatment equipment, and in particular to a high-temperature circulating fan volute. Background Technology

[0002] High-temperature circulating fans are core equipment for industrial high-temperature gas transportation. They are mainly used in dual-chamber furnace systems in industries such as metallurgy, chemical industry, and glass manufacturing that require the treatment of high-temperature flue gas. They are especially suitable for flue gas circulation scenarios with high temperature and strong corrosiveness. The volute is a key component that directly affects the efficiency and reliability of the fan. The fixed casing is the basic part of the volute. The design of the fixed casing can be selected as horizontal split type or volute type according to the impeller form.

[0003] Currently, high-temperature fan casings are mostly made of ordinary carbon steel or low alloy steel. Under long-term high-temperature (usually above 500℃) conditions, they are prone to oxidation, deformation, or even cracking, which leads to decreased sealing performance, increased gas leakage, and consequently affects system energy efficiency and equipment lifespan.

[0004] In response to the aforementioned technologies, there is an urgent need to design and develop a high-temperature circulating fan casing to prevent oxidation, deformation, and corrosion of the high-temperature circulating fan, thereby improving its service life. Utility Model Content

[0005] To prevent oxidation, deformation, and corrosion of high-temperature circulating fans and to improve their service life, this application provides a volute casing for a high-temperature circulating fan.

[0006] The technical solution for a high-temperature circulating fan casing provided in this application is as follows:

[0007] A high-temperature circulating fan casing includes a left casing and a right casing connected to the left casing. The left and right casings are both filled with a refractory castable layer. The left casing has a flue chamber, and the side wall of the flue chamber has an air outlet. The side wall of the left casing has an air inlet, which communicates with the flue chamber and can be connected to the main chamber of a double-chamber furnace. The right casing has a second flue chamber, which communicates with the first flue chamber. The side wall of the second flue chamber has an air outlet, which communicates with the first air outlet. The side wall of the second flue chamber has an air inlet, which communicates with the first air outlet. The side wall of the right casing has an air inlet, which communicates with the second flue chamber and can be connected to the auxiliary chamber of the double-chamber furnace.

[0008] By adopting the above technical solution, both the left and right shells are filled with refractory castable layers. A flue chamber is provided inside the left shell, and an air outlet is provided on the side wall of the flue chamber. An air inlet is provided on the side of the left shell, and the air inlet is connected to the flue chamber. The air inlet can be connected to the main chamber of the double-chamber furnace. The right shell is connected to the left shell, and a second flue chamber is provided inside the right shell, which is connected to the first flue chamber. An air outlet is provided on the side wall of the second flue chamber. The second inlet is connected to the first outlet. The right side of the casing has an air inlet 2, which is connected to the second flue chamber. The second air inlet can be connected to the auxiliary chamber of the double-chamber furnace. During use, high-temperature flue gas enters from the first and second air inlets of the blower, passes through the volute cast with castable refractory, and is discharged from the first and second outlets through the flue. The castable refractory material is resistant to high temperature and corrosion, and the high-temperature flue gas will not affect the refractory castable layer, thus increasing the service life of the blower volute.

[0009] Preferably, an insulation layer is connected to the left shell by connecting studs, and both the insulation layer and the connecting studs are cast within a refractory castable layer.

[0010] By adopting the above technical solution, an insulation layer is connected inside the left shell by connecting studs. Both the insulation layer and the connecting studs are cast in the refractory castable layer, which improves the insulation effect.

[0011] Preferably, an insulation layer is connected inside the right shell by connecting studs, and both the insulation layer and the connecting studs are cast within a refractory castable layer.

[0012] By adopting the above technical solution, an insulation layer is connected inside the right shell by connecting studs. Both the insulation layer and the connecting studs are cast in the refractory castable layer, which improves the insulation effect.

[0013] Preferably, a first connecting ring block is provided on the left housing, and a second connecting ring block is provided on the right housing. The first connecting ring block and the second connecting ring block are connected by a connecting screw.

[0014] By adopting the above technical solution, a connecting ring block 1 is provided on the left shell and a connecting ring block 2 is provided on the right shell. The connecting ring block 1 and the connecting ring block 2 are connected by a connecting screw, which facilitates the connection between the left shell and the right shell.

[0015] Preferably, a sealing ring strip 1 is provided on the side of the connecting ring block 1 near the connecting ring block 2, and a sealing ring strip 2 is provided on the side of the connecting ring block 2 near the connecting ring block 1. The sealing ring strip 1 is tightly attached to the sealing ring strip 2, and the connecting screw passes through the sealing ring strip 1 and the sealing ring strip 2.

[0016] By adopting the above technical solution, a sealing ring strip 1 is provided on the side of connecting ring block 1 near connecting ring block 2, and a sealing ring strip 2 is provided on the side of connecting ring block 2 near connecting ring block 1. The sealing ring strip 1 is tightly attached to the sealing ring strip 2, and the connecting screw passes through the sealing ring strip 1 and the sealing ring strip 2, thereby improving the sealing effect of the volute.

[0017] Preferably, a maintenance slot 1 is provided on the side of the left housing away from the first air outlet, and a maintenance slot 2 is provided on the side of the right housing away from the second air outlet. The maintenance slot 1 and the maintenance slot 2 are connected. A split volute is provided in the maintenance slot 1, and the split volute is provided in the maintenance slot 2.

[0018] By adopting the above technical solution, a maintenance slot 1 is provided on the side of the left casing away from the air outlet 1, and a maintenance slot 2 is provided on the side of the right casing away from the air outlet 2. The maintenance slot 1 and the maintenance slot 2 are connected. A split-type volute is provided in the maintenance slot 1 and the split-type volute is provided in the maintenance slot 2. The split-type volute can improve the stability and vibration resistance of the airflow in the volute casing and prevent the gas from circulating in the casing.

[0019] Preferably, a connecting plate is provided at one air outlet, and a connecting hole is provided on the side of the connecting plate. A connecting plate is provided at the other air outlet, and a connecting hole is provided on the side of the connecting plate.

[0020] By adopting the above technical solution, a connecting plate 1 is provided at one air outlet, and a connecting hole 1 is opened on the side of the connecting plate 1. A connecting plate 2 is provided at the second air outlet, and a connecting hole 2 is opened on the side of the connecting plate 2. When it is necessary to install the fan casing on other devices, a connecting screw is provided on the left casing so that the connecting screw passes through the connecting hole 1 and is fixed to the other device. A connecting screw is provided on the right casing so that the connecting screw passes through the connecting hole 2 and is fixed to the other device, which facilitates the installation of the casing on other devices.

[0021] Preferably, a protective frame strip is provided on the side of the left housing, and a positioning post is provided on the left housing. The positioning post is close to the air inlet and is located inside the protective frame strip. A second protective frame strip is provided on the side of the right housing, and a second positioning post is provided on the right housing. The positioning post is close to the air inlet and is located inside the protective frame strip.

[0022] By adopting the above technical solution, a protective frame strip 1 is provided on the side of the left shell, and a positioning post 1 is provided on the left shell. The positioning post 1 is close to the air inlet 1 and is located inside the protective frame strip 1. A protective frame strip 2 is provided on the side of the right shell, and a positioning post 2 is provided on the right shell. The positioning post 2 is close to the air inlet 2 and is located inside the protective frame strip 2. The positioning post 1 facilitates the alignment of the air inlet 1 with the main chamber of the double-chamber furnace, and the positioning post 2 facilitates the alignment of the air inlet 2 with the auxiliary chamber of the double-chamber furnace, thereby facilitating the positioning and installation of the volute.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. Both the left and right shells are lined with refractory castable layers. The left shell contains a flue chamber, with an air outlet on its side wall. An air inlet is located on the side of the left shell and connects to the flue chamber. The air inlet can also connect to the main chamber of the double-chamber furnace. The right shell is connected to the left shell and contains a second flue chamber, which connects to the first flue chamber. An air outlet is located on the side wall of the second flue chamber and connects to the main chamber of the double-chamber furnace. The first inlet is connected to the second inlet, and the second air inlet is opened on the side of the right shell. The second air inlet is connected to the second flue chamber and can be connected to the auxiliary chamber of the double-chamber furnace. During use, high-temperature flue gas enters from the first and second air inlets of the blower, passes through the volute cast with castable refractory, and is discharged from the first and second air outlets through the flue. The castable refractory material is resistant to high temperature and corrosion, and the high-temperature flue gas will not affect the refractory castable layer, thus increasing the service life of the blower volute.

[0025] 2. A maintenance slot 1 is provided on the side of the left housing away from the first air outlet, and a maintenance slot 2 is provided on the side of the right housing away from the second air outlet. The maintenance slot 1 and the maintenance slot 2 are connected. A split-type volute is provided in the maintenance slot 1 and the split-type volute is provided in the maintenance slot 2. The split-type volute can improve the stability and vibration resistance of the airflow in the volute and prevent the gas from circulating in the housing.

[0026] 3. A protective frame strip is provided on the side of the left shell, and a positioning post is provided on the left shell. The positioning post is close to the air inlet and is located inside the protective frame strip. A protective frame strip is provided on the side of the right shell, and a positioning post is provided on the right shell. The positioning post is close to the air inlet and is located inside the protective frame strip. The positioning post facilitates the alignment of the air inlet with the main chamber of the double-chamber furnace, and the positioning post facilitates the alignment of the air inlet with the auxiliary chamber of the double-chamber furnace, thereby facilitating the positioning and installation of the volute. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a high-temperature circulating fan casing in an embodiment of this application.

[0028] Figure 2This is a schematic diagram of the structure of the left shell in an embodiment of this application.

[0029] Figure 3 This is a schematic diagram of the right shell structure in an embodiment of this application.

[0030] Figure 4 This is a cross-sectional view of the left shell in an embodiment of this application.

[0031] Figure 5 This is a cross-sectional view of the right shell in an embodiment of this application.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Left shell; 11. Smoke chamber one; 12. Air outlet one; 13. Air inlet one; 14. Protective frame strip one; 15. Connecting ring block one; 16. Inspection slot one; 2. Right shell; 21. Smoke chamber two; 22. Air outlet two; 23. Air inlet two; 24. Protective frame strip two; 25. Positioning post two; 26. Connecting ring block two; 27. Inspection slot two; 3. Insulation layer; 4. Split volute; 5. Connecting plate one; 51. Connecting hole one; 6. Connecting plate two; 61. Connecting hole two. Detailed Implementation

[0034] The present application will be further described in detail below with reference to the accompanying drawings.

[0035] This application discloses a high-temperature circulating fan casing, referring to... Figure 1 As shown, a high-temperature circulating fan casing includes a left casing 1 and a right casing 2, both of which are filled with a refractory castable layer.

[0036] Reference Figure 1 and Figure 2 As shown, a flue chamber 11 is provided inside the left shell 1, an air outlet 12 is provided on the side wall of the flue chamber 11, and an air inlet 13 is provided on the side of the left shell 1. The air inlet 13 is connected to the flue chamber 11, and the axis of the air inlet 13 coincides with the axis of the flue chamber 11. The air inlet 13 can be connected to the main chamber of the double-chamber furnace.

[0037] Reference Figure 1 , Figure 2 and Figure 3 As shown, a second smoke chamber 21 is provided inside the right shell 2, which is connected to a first smoke chamber 11. The axis of the second smoke chamber 21 coincides with the axis of the first smoke chamber 11. An air outlet 22 is provided on the side wall of the second smoke chamber 21, which is connected to an first air outlet 12. An air inlet 23 is provided on the side of the right shell 2, which is connected to the second smoke chamber 21. The axis of the air inlet 23 coincides with the axis of the second smoke chamber 21. The air inlet 23 can be connected to the auxiliary chamber of the double-chamber furnace.

[0038] Reference Figure 1 , Figure 2 and Figure 3 As shown, when the high-temperature circulating fan casing is in use, the high-temperature flue gas enters from the fan's inlet 13 and inlet 23, passes through the refractory-cast casing, and is discharged from the outlet 12 and outlet 22 through the flue. The cast refractory material is resistant to high temperature and corrosion, and the high-temperature flue gas will not affect the refractory castable layer, thus increasing the service life of the fan casing.

[0039] Reference Figure 1 and Figure 2 As shown, a protective frame strip 14 is provided on the side of the left shell 1, and a positioning post 1 is provided on the left shell 1. The positioning post 1 is close to the air inlet hole 13. There are multiple positioning posts 1, which are evenly distributed at equal distances along the circumference of the air inlet hole 13. The positioning posts 1 are located inside the protective frame strip 14.

[0040] Reference Figure 1 and Figure 3 As shown, a protective frame strip 24 is provided on the side of the right shell 2, and a positioning post 25 is provided on the right shell 2. The positioning post 25 is close to the air inlet 23. There are multiple positioning posts 25, which are evenly distributed at equal distances along the circumference of the air inlet 23. The positioning posts 25 are located inside the protective frame strip 24.

[0041] Reference Figure 1 , Figure 2 and Figure 3 As shown, positioning post one facilitates the alignment of air inlet hole one 13 with the main chamber of the double-chamber furnace, and positioning post two 25 facilitates the alignment of air inlet hole two 23 with the auxiliary chamber of the double-chamber furnace, thereby facilitating the positioning and installation of the volute.

[0042] Reference Figure 1 , Figure 4 and Figure 5 As shown, the left shell 1 is connected to the insulation layer 3 by connecting studs. Both the insulation layer 3 and the connecting studs are cast in the refractory castable layer. The right shell 2 is connected to the insulation layer 3 by connecting studs. Both the insulation layer 3 and the connecting studs are cast in the refractory castable layer to improve the insulation effect.

[0043] Reference Figure 1 and Figure 2 As shown, a connecting ring block 15 is provided on the left housing 1, and a connecting ring block 26 is provided on the right housing 2. The connecting ring block 15 and the connecting ring block 26 are connected by a connecting screw, which facilitates the connection between the left housing 1 and the right housing 2.

[0044] Reference Figure 1As shown, a sealing ring strip 1 is provided on the side of connecting ring block 15 near connecting ring block 26, and a sealing ring strip 2 is provided on the side of connecting ring block 26 near connecting ring block 15. The sealing ring strip 1 is tightly attached to the sealing ring strip 2, and the connecting screw passes through the sealing ring strip 1 and the sealing ring strip 2 to improve the sealing effect of the volute.

[0045] Reference Figure 1 , Figure 2 and Figure 3 As shown, a maintenance slot 16 is provided on the side of the left housing 1 away from the air outlet 12, and a maintenance slot 27 is provided on the side of the right housing 2 away from the air outlet 22. The maintenance slot 16 and the maintenance slot 27 are connected. A split volute tongue 4 is provided in the maintenance slot 16 and the split volute tongue 4 is provided in the maintenance slot 27. The split volute tongue 4 can improve the stability and vibration resistance of the airflow in the volute and prevent the gas from circulating in the housing.

[0046] Reference Figure 1 , Figure 2 and Figure 3 As shown, a connecting plate 5 is provided at the air outlet 12, and a connecting hole 51 is provided on the side of the connecting plate 5. A connecting plate 6 is provided at the air outlet 22, and a connecting hole 61 is provided on the side of the connecting plate 6. When it is necessary to install the fan casing on other devices, a connecting screw is provided on the left casing 1, so that the connecting screw passes through the connecting hole 51 and is fixed to the other device. A connecting screw is provided on the right casing 2, so that the connecting screw passes through the connecting hole 61 and is fixed to the other device, which facilitates the installation of the casing on other devices.

[0047] The implementation principle of a high-temperature circulating fan casing according to an embodiment of this application is as follows:

[0048] Both the left shell 1 and the right shell 2 are filled with refractory castable layers. The left shell 1 has a flue chamber 11, and an air outlet 12 is located on the side wall of the flue chamber 11. An air inlet 13 is located on the side of the left shell 1, communicating with the flue chamber 11 and connecting to the main chamber of the double-chamber furnace. The right shell 2 is connected to the left shell 1. The right shell 2 has a second flue chamber 21, which communicates with the first flue chamber 11. An air outlet 22 is located on the side wall of the second flue chamber 21. The second air inlet 22 is connected to the first air outlet 12. The right side of the shell 2 has an air inlet 23, which is connected to the second smoke chamber 21. The second air inlet 23 can be connected to the auxiliary chamber of the double-chamber furnace. In use, high-temperature flue gas enters from the first air inlet 13 and the second air inlet 23 of the blower, passes through the volute cast with castable refractory, and is discharged from the first air outlet 12 and the second air outlet 22 through the flue. The castable refractory material is resistant to high temperature and corrosion. The high-temperature flue gas will not affect the refractory castable layer, thus increasing the service life of the blower volute.

[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-temperature circulating fan casing, comprising a left casing (1) and a right casing (2) connected to the left casing (1), characterized in that: Both the left shell (1) and the right shell (2) are filled with refractory castable layers. The left shell (1) has a flue chamber (11) with an air outlet (12) on its side wall. The left shell (1) has an air inlet (13) on its side, which is connected to the flue chamber (11) and can be connected to the main chamber of the double-chamber furnace. The right shell (2) has... A second smoke chamber (21) is provided, which is connected to the first smoke chamber (11). An air outlet (22) is provided on the side wall of the second smoke chamber (21), which is connected to the first air outlet (12). An air inlet (23) is provided on the side of the right shell (2), which is connected to the second smoke chamber (21). The air inlet (23) can be connected to the auxiliary chamber of the double-chamber furnace.

2. The high-temperature circulating fan casing according to claim 1, characterized in that: The left shell (1) is connected to an insulation layer (3) by connecting studs. Both the insulation layer (3) and the connecting studs are cast in the refractory castable layer.

3. The high-temperature circulating fan casing according to claim 1, characterized in that: The right shell (2) is connected to an insulation layer (3) by connecting studs. Both the insulation layer (3) and the connecting studs are cast in the refractory castable layer.

4. The high-temperature circulating fan casing according to claim 1, characterized in that: The left housing (1) is provided with a connecting ring block one (15), and the right housing (2) is provided with a connecting ring block two (26). The connecting ring block one (15) and the connecting ring block two (26) are connected by a connecting screw.

5. The high-temperature circulating fan casing according to claim 4, characterized in that: A sealing ring strip is provided on the side of the first connecting ring block (15) near the second connecting ring block (26), and a sealing ring strip is provided on the side of the second connecting ring block (26) near the first connecting ring block (15). The first sealing ring strip is in close contact with the second sealing ring strip, and the connecting screw passes through the first sealing ring strip and the second sealing ring strip.

6. The high-temperature circulating fan casing according to claim 1, characterized in that: The left housing (1) has a maintenance slot 1 (16) on the side away from the air outlet 1 (12), and the right housing (2) has a maintenance slot 2 (27) on the side away from the air outlet 2 (22). The maintenance slot 1 (16) and the maintenance slot 2 (27) are connected. A split volute tongue (4) is provided in the maintenance slot 1 (16), and the split volute tongue (4) is provided in the maintenance slot 2 (27).

7. The high-temperature circulating fan casing according to claim 1, characterized in that: A connecting plate 1 (5) is provided at the first air outlet (12), and a connecting hole 1 (51) is provided on the side of the connecting plate 1 (5). A connecting plate 2 (6) is provided at the second air outlet (22), and a connecting hole 2 (61) is provided on the side of the connecting plate 2 (6).

8. The high-temperature circulating fan casing according to claim 1, characterized in that: A protective frame strip (14) is provided on the side of the left housing (1), and a positioning post (1) is provided on the left housing (1). The positioning post (1) is close to the air inlet (13) and is located inside the protective frame strip (14). A protective frame strip (24) is provided on the side of the right housing (2), and a positioning post (25) is provided on the right housing (2). The positioning post (25) is close to the air inlet (23) and is located inside the protective frame strip (24).

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