High temperature resistant turbine shell

Abstract

The utility model discloses a kind of high-temperature-resistant turbine shell, more particularly in the technical field of turbine shell, including shell, the one end of shell is fixedly connected with the air inlet pipe for air inlet, the outer wall of air inlet pipe is equipped with wrapping heat-resistant mechanism, wrapping heat-resistant mechanism includes: wrapping shell, fixed on the outer wall of air inlet pipe, the outer wall of wrapping shell is fixedly connected with the liquid inlet pipe for entering coolant;Branch pipe, one end is fixedly connected on the outer wall of liquid inlet pipe, the other end of branch pipe is fixedly connected with water pipe, surrounding shell, fixedly connected in the other end of shell.The utility model uses wrapping heat-resistant mechanism, coolant enters wrapping shell through liquid inlet pipe, wrapping shell is used to cool the outer wall of shell right end surface and air inlet pipe connection, part of coolant is used to cool the left end surface of shell in large area, cooling area is large, heat exchange efficiency is high, suitable for high-strength, continuous operation working environment.

Description

Technical Field

[0001] This utility model relates to the field of turbine housing technology, and more specifically, to a high-temperature resistant turbine housing. Background Technology

[0002] The combustion chamber of a gas turbine has a high temperature. The high-temperature turbine casing is made of nickel-based alloy, ceramic matrix composite material or coated with thermal barrier coating. It can withstand extreme high temperatures, prevent the casing from deforming or melting, ensure the stability of the gap between the turbine blades and the casing, and maintain the high-efficiency operation of the engine.

[0003] To protect the turbine blades and ensure high-speed rotation, the turbine housing must provide crucial high-temperature protection. However, under high-temperature conditions, not only does the housing itself remain at a high temperature, but its intake area also experiences localized high temperatures. This dual effect of high temperatures can easily lead to housing malfunctions. High-temperature operation at the turbine housing end can easily cause localized overheating, affecting the stability and service life of the equipment in high-temperature environments. Utility Model Content

[0004] To overcome the aforementioned deficiencies of the prior art, this utility model provides the following technical solution: a high-temperature resistant turbine housing, comprising a housing, one end of which is fixedly connected to an intake pipe for air intake, and the outer wall of the intake pipe is provided with a heat-resistant wrapping mechanism, the heat-resistant wrapping mechanism comprising:

[0005] A casing is fixed to the outer wall of the air intake pipe, and an inlet pipe for entering coolant is fixedly connected to the outer wall of the casing.

[0006] The branch pipe has one end fixedly connected to the outer wall of the liquid inlet pipe, and the other end of the branch pipe is fixedly connected to a water pipe;

[0007] A surrounding shell is fixedly connected to the other end of the housing. The surrounding shell is fixedly connected to a water pipe, which is used to transport coolant to the inside of the surrounding shell.

[0008] The connecting pipe is connected to the bottom of the outer wall of the enclosure, and one end of the connecting pipe is fixedly connected to a connecting pipe.

[0009] A drain pipe is inserted into the bottom of the outer wall of the enclosure, and the drain pipe is connected to the connecting pipe.

[0010] In a preferred embodiment, both the enclosing shell and the surrounding shell have cavities inside, and the enclosing shell and the surrounding shell are arranged symmetrically about the shell.

[0011] In a preferred embodiment, the water pipe is higher than the connecting pipe, and the inlet pipe is higher than the outlet pipe.

[0012] In a preferred embodiment, the branch pipe is higher than the connecting pipe, and the vertical cross-sectional shape of the connecting pipe is L-shaped.

[0013] In a preferred embodiment, an air outlet pipe is fixedly connected to the top of the outer wall of the housing, and the air outlet pipe is used for air outlet.

[0014] In a preferred embodiment, a plurality of support rods are fixedly connected to one end face of the enclosure shell;

[0015] Each of the support rods has a mounting base fixedly connected to one end, and a support ring is fixed to the outer wall of the mounting base.

[0016] In a preferred embodiment, a heat-conducting ring is fixed to one end face of the housing near its center point;

[0017] The outer wall of the heat-conducting ring is circumferentially fixed with multiple heat-conducting plates, and a gap is formed between two adjacent heat-conducting plates.

[0018] The technical effects and advantages of this utility model are as follows:

[0019] 1. This utility model adopts a heat-resistant encapsulation mechanism. By connecting the factory coolant pipeline to the inlet pipe, the coolant enters the encapsulation shell through the inlet pipe, and the right end face of the shell and the outer wall of the air inlet pipe connection are encapsulated and cooled. Some of the coolant flows into the encapsulation shell through the branch pipe and water pipe, and the left end face of the shell is encapsulated and cooled over a large area. The cooling area is large and the heat exchange efficiency is high, which effectively reduces the local temperature and improves the stability and service life of the shell in high-temperature environments. It is suitable for high-intensity and continuous operation environments.

[0020] 2. This utility model achieves efficient distributed heat conduction through a combination structure of the shell end, a heat-conducting ring, and multiple heat-conducting plates. Heat is conducted from the shell end to the heat-conducting ring, and then dispersed through multiple heat-conducting plates. The gap design increases the heat exchange area, promotes rapid heat conduction to the coolant, and results in more uniform heat distribution, avoiding local overheating and significantly improving the high-temperature resistance of the shell end. This solution has a shorter heat conduction path and a larger heat exchange area, which can effectively extend the service life of the equipment in high-temperature environments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the high-temperature resistant turbine housing of this utility model.

[0022] Figure 2 This is a partial structural diagram of the connection between the outer shell and the liquid inlet pipe of this utility model.

[0023] Figure 3 This is a partial structural diagram of the connection between the outer shell and the drain pipe of this utility model.

[0024] Figure 4 This is a partial structural diagram of the vertical cross-section at the connection between the shell and the heat-conducting ring of this utility model.

[0025] Figure 5 This is a partial structural diagram of the connection between the support rod and the mounting base of this utility model.

[0026] The attached diagram is labeled as follows: 1. Shell; 2. Air inlet pipe; 3. Enclosure shell; 4. Liquid inlet pipe; 5. Branch pipe; 6. Water pipe; 7. Enclosure shell; 8. Connecting pipe; 9. Connecting pipe; 10. Drain pipe; 11. Air outlet pipe; 12. Support rod; 13. Mounting base; 14. Support ring; 15. Heat-conducting ring; 16. Heat-conducting plate; 17. Gap. Detailed Implementation

[0027] 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.

[0028] like Figure 1 - Figure 5 The high-temperature turbine housing shown is equipped with a heat-resistant wrapping mechanism. The heat-resistant wrapping mechanism can simultaneously provide large-area cooling to the left and right end faces of the housing 1. The cooling area is large and the heat exchange efficiency is high, which effectively reduces the local temperature and improves the stability and service life of the housing in high-temperature environments. It is suitable for high-intensity and continuous operation environments. The specific structure of the heat-resistant wrapping mechanism is as follows.

[0029] In this embodiment, as Figure 1 - Figure 3 As shown, one end of the housing 1 is fixedly connected to an air intake pipe 2 for air intake. The outer wall of the air intake pipe 2 is provided with a heat-resistant wrapping mechanism, which includes: a wrapping shell 3, fixed to the outer wall of the air intake pipe 2, with a liquid inlet pipe 4 for entering the coolant fixedly connected to the outer wall of the wrapping shell 3; a branch pipe 5, one end of which is fixedly connected to the outer wall of the liquid inlet pipe 4, and the other end of the branch pipe 5 is fixedly connected to a water pipe 6; a surrounding shell 7, fixedly connected to the other end of the housing 1, with a fixed connection between the surrounding shell 7 and the water pipe 6, and the water pipe 6 is used to transport coolant to the interior of the surrounding shell 7 for filling; a connecting pipe 8, connected to the bottom of the outer wall of the surrounding shell 7, with a connecting pipe 9 fixedly connected to one end of the connecting pipe 8; and a drain pipe 10, inserted into the bottom of the outer wall of the wrapping shell 3, with the drain pipe 10 connected to the connecting pipe 9.

[0030] In this embodiment, as Figure 1As shown, both the enclosing shell 3 and the surrounding shell 7 have cavities inside. The enclosing shell 3 and the surrounding shell 7 are symmetrically arranged about the shell 1 so that the liquid inlet pipe 4 can enter the interior of the enclosing shell 3. In this way, the coolant can fill the cavities inside the enclosing shell 3 and the surrounding shell 7, and the enclosing shell 3 and the surrounding shell 7 achieve symmetrical cooling at both ends about the shell 1.

[0031] In this embodiment, as Figure 3 As shown, the water pipe 6 is higher than the connecting pipe 8, and the liquid inlet pipe 4 is higher than the drain pipe 10, so that the water pipe 6 can be transported to the connecting pipe 8, which facilitates the flow of coolant. The fact that the liquid inlet pipe 4 is higher than the drain pipe 10 can also facilitate the flow of coolant.

[0032] In this embodiment, as Figure 3 As shown, the branch pipe 5 is higher than the connecting pipe 9, and the vertical cross-section of the connecting pipe 9 is L-shaped, so that the branch pipe 5 is higher than the connecting pipe 9, so that the coolant is transported from high to low, and the connecting pipe 9 forms an L-shaped docking guide.

[0033] In this embodiment, as Figure 1 - Figure 5As shown, an exhaust pipe 11 is fixedly connected to the top of the outer wall of the housing 1, and the exhaust pipe 11 is used for exhaust. In this embodiment, as shown in the figure, a plurality of support rods 12 are fixedly connected to one end face of the surrounding shell 7; one end of each support rod 12 is fixedly connected to a mounting base 13, and a support ring 14 is fixedly provided on the outer wall of the mounting base 13 so that the mounting base 13 can contact the bracket, and the support ring 14 can also contact the bracket. By inserting bolts into the holes of the mounting base 13, the mounting base 13 can stably support the surrounding shell 7, making the surrounding shell 7 more secure. When using the high-temperature resistant turbine housing of this utility model, the mounting base 13 is contacted to the bracket, and the mounting base 13 supports the support ring 14, and the support ring 14 also contacts the bracket. By inserting bolts into the holes of the mounting base 13, the mounting base 13 is fixed to the bracket. The mounting base 13 supports the support rods 12, the support rods 12 support the surrounding shell 7, and the surrounding shell 7 supports the housing 1. The factory's coolant pipeline is connected to the inlet pipe 4, and the factory's coolant outlet pipe is connected to the drain pipe 10. In this way, the coolant is poured into the inlet pipe 4 and then into the enclosure shell 3. This provides enveloping cooling to the right end face of the shell 1 and the outer wall of the connection point of the air inlet pipe 2. Another part of the coolant is poured into the branch pipe 5 and then into the water pipe 6. Through the water pipe 6, it enters the surrounding shell 7 and fills the interior of the surrounding shell 7, thus achieving large-area enveloping cooling to the left end face of the shell 1. This improves the high-temperature resistance of both ends of the shell 1. The hot water inside the enclosure shell 3 is discharged through the drain pipe 10, while the hot water inside the surrounding shell 7 is poured into the connecting pipe 9 through the connecting pipe 8 and then into the drain pipe 10. The hot water is collected and discharged through the drain pipe 10, ensuring that both ends of the shell 1 are enveloped and cooled over a large area, resulting in better high-temperature resistance.

[0034] In this embodiment, as Figure 4 As shown, a heat-conducting ring 15 is fixed on one end face of the housing 1 near its center point; multiple heat-conducting plates 16 are fixedly installed on the outer wall of the heat-conducting ring 15 in a circular shape, and a gap 17 is formed between two adjacent heat-conducting plates 16.

[0035] When the high-temperature resistant turbine housing of this utility model is in use, the heat at the end of the housing 1 will be conducted to the heat conduction ring 15, and then from the heat conduction ring 15 to the multiple heat conduction plates 16. The large gaps created by the multiple gaps 17 allow the heat to be fully conducted to the heat conduction ring 15 and the multiple heat conduction plates 16, realizing distributed heat conduction. The heat can be fully and quickly exchanged with the coolant, and the high-temperature resistance of the end of the housing 1 is better.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-temperature resistant turbine housing, comprising a housing (1), wherein one end of the housing (1) is fixedly connected to an intake pipe (2) for air intake, characterized in that: The outer wall of the air intake pipe (2) is provided with a heat-resistant wrapping mechanism, which includes: The outer shell (3) is fixed to the outer wall of the air inlet pipe (2), and the outer wall of the outer shell (3) is fixedly connected to the liquid inlet pipe (4) for entering the coolant. One end of the branch pipe (5) is fixedly connected to the outer wall of the liquid inlet pipe (4), and the other end of the branch pipe (5) is fixedly connected to the water pipe (6). A surrounding shell (7) is fixedly connected to the other end of the shell (1). The surrounding shell (7) is fixedly connected to the water pipe (6). The water pipe (6) is used to transport coolant into the surrounding shell (7). The connecting pipe (8) is connected to the bottom of the outer wall of the surrounding shell (7), and one end of the connecting pipe (8) is fixedly connected to the connecting pipe (9). The drain pipe (10) is inserted into the bottom of the outer wall of the casing (3), and the drain pipe (10) is connected to the connecting pipe (9).

2. The high-temperature resistant turbine housing according to claim 1, characterized in that: Both the enclosing shell (3) and the surrounding shell (7) have cavities inside, and the enclosing shell (3) and the surrounding shell (7) are symmetrically arranged about the shell (1).

3. The high-temperature resistant turbine housing according to claim 1, characterized in that: The water pipe (6) is higher than the connecting pipe (8), and the liquid inlet pipe (4) is higher than the drain pipe (10).

4. The high-temperature resistant turbine housing according to claim 1, characterized in that: The branch pipe (5) is higher than the connecting pipe (9), and the vertical cross-sectional shape of the connecting pipe (9) is L-shaped.

5. The high-temperature resistant turbine housing according to claim 1, characterized in that: The top of the outer wall of the housing (1) is fixedly connected to an air outlet pipe (11), which is used for air outlet.

6. The high-temperature resistant turbine housing according to claim 1, characterized in that: Multiple support rods (12) are fixedly connected to one end face of the enclosure shell (7); Each of the support rods (12) has a mounting base (13) fixedly connected to one end, and a support ring (14) is fixed to the outer wall of the mounting base (13).

7. The high-temperature resistant turbine housing according to claim 1, characterized in that: A heat-conducting ring (15) is fixed on one end face of the housing (1) near its center point.

8. The high-temperature resistant turbine housing according to claim 7, characterized in that: The outer wall of the heat-conducting ring (15) is circumferentially fixed with multiple heat-conducting plates (16), and a gap (17) is formed between two adjacent heat-conducting plates (16).

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