Gas turbine exhaust assembly structure
By improving the combined design of gas turbine exhaust components, the problems of exhaust noise, thermal expansion and maintenance are solved, and a low-noise, safe and efficient exhaust process and maintenance are achieved, which can adapt to extreme weather.
Patent Information
- Application Number
- CN202423148125.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-12-20
AI Technical Summary
The exhaust components of the gas turbine are not tightly structured, making loud noises and difficult to maintain in extreme weather conditions. Thermal expansion of the gas causes cracks and leaks in the downstream exhaust section, affecting the operation and safety of the unit.
The exhaust bracket, exhaust silencer section, exhaust expansion section, exhaust flexible connection, square-to-circular transition section, smoke exhaust channel, rain cap and other components are designed in combination with rubber parts and steel structure to enhance sealing and maintenance convenience.
Reduce exhaust noise, absorb gas thermal expansion, ensure safe maintenance, improve work efficiency, adapt to extreme weather, and ensure complete smoke exhaust and no dead angles.
Smart Images
Figure CN223344154U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a gas turbine exhaust component structure. Technical Background
[0002] Gas turbine exhaust assemblies are often loosely constructed, generating a significant amount of noise during exhaust, significantly impacting workers and the surrounding environment. Furthermore, they are susceptible to weather changes such as rain and snow during operation, making repairs difficult when damaged. Currently, exhaust assemblies have a simple structure. When gases enter the flue, thermal expansion is transmitted downstream, causing excessive expansion, cracking, and heat and gas leaks in the downstream exhaust section. This impacts the normal operation of the unit, poses a threat to the safety of workers, and reduces work efficiency over time. Utility Model Content
[0003] The purpose of the utility model is to solve the problems of gas turbine structure not being tight enough, noise being generated during exhaust operation, difficulty in repairing exhaust components under extreme weather conditions, and thermal expansion of gas leading to cracking and leakage of downstream exhaust. A gas turbine exhaust component structure is provided.
[0004] In order to solve the above-mentioned shortcomings, the present invention adopts the following technical solutions:
[0005] A gas turbine exhaust assembly structure, comprising an exhaust bracket, the exhaust bracket being fixedly connected to an exhaust muffler section, the exhaust muffler section being fixedly connected below an exhaust expansion section, the exhaust expansion section being fixedly connected to an exhaust flexible connection via bolts, the exhaust muffler section being fixedly connected above a square-to-circular transition section, the square-to-circular transition section being fixedly connected to an exhaust duct via bolts, and a rain cap being fixedly installed above the exhaust duct via bolts;
[0006] A walkway is provided at the top of the exhaust silencer section and the top of the smoke exhaust channel. A ladder is provided between the two walkways. The ladder is fixedly installed on the surface of the smoke exhaust channel.
[0007] In the gas turbine exhaust assembly structure, the exhaust flexible connection includes two steel sections, and the steel sections are fixedly connected to the rubber piece. Beneficial effects
[0008] 1. The exhaust assembly after the modification of the utility model is first absorbed and expanded by the exhaust flexible connection, and then the pressure and temperature are reduced by the exhaust expansion section. Finally, the exhaust silencer section silences the exhaust before discharging, thereby reducing the noise generated by the gas turbine exhaust.
[0009] 2. The utility model adds an exhaust flexible connection structure below the exhaust expansion section. The exhaust flexible connection structure can absorb the axial and radial thermal expansion of the transferred gas, avoiding the transfer of thermal expansion generated by the gas entering the downstream, resulting in excessive expansion of the downstream exhaust section, cracking, and air and heat leakage.
[0010] 3. The utility model adds a walking platform and a ladder structure, which can realize timely maintenance of the exhaust device when a fault occurs, improve the work efficiency of the staff, and timely repair of the exhaust device can ensure the normal operation of the working unit.
[0011] 4. The utility model adds a square-to-circular transition section. When the flue changes from square to circular, the area for smoke circulation becomes larger, and the circular design has no dead corners for ash accumulation, making smoke discharge more complete.
[0012] 5. The provision of the rainproof cap of the present invention enables the gas turbine exhaust assembly to be used normally even in extreme weather such as rain and snow, without being affected by the weather. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Attachment Figure 1 It is the main view of the utility model.
[0014] In the figure: 1. Rainproof cap; 2. Ladder and walkway; 3. Smoke exhaust duct; 4. Square to round transition section; 5. Exhaust silencer section; 6. Exhaust expansion section; 7. Exhaust flexible connection; 8. Exhaust bracket. DETAILED DESCRIPTION
[0015] Reference Figure 1 A gas turbine exhaust assembly structure, comprising an exhaust bracket 8, the exhaust bracket being used to support the entire exhaust assembly, the exhaust bracket being fixedly connected to an exhaust muffler section 5, the exhaust expansion section 6 being fixedly connected below the exhaust muffler section, the exhaust expansion section being fixedly connected to an exhaust flexible connection 7 by bolts, the square-to-circular transition section 4 being fixedly connected above the exhaust muffler section, the square-to-circular transition section being fixedly connected to an exhaust duct 3 by bolts, and a rain cap 1 being fixedly installed above the exhaust duct by bolts;
[0016] The exhaust expansion section can increase the area of gas circulation and reduce the pressure and temperature of the gas, so that after entering the exhaust muffler section, the gas is more easily silenced by the exhaust muffler section.
[0017] The square-to-circular transition section transforms the flue from a square to a circular shape, thereby expanding the area for flue gas circulation. The design of the circular flue avoids dead corners for ash accumulation, thereby making flue gas discharge more complete.
[0018] The higher the height of the smoke exhaust channel, the greater the pressure difference between the upper and lower parts, and the faster the flow rate of the smoke. The higher the smoke exhaust channel, the more conducive it is to the discharge of smoke.
[0019] A walkway 2 is provided at the top of the exhaust silencer section and the top of the smoke exhaust channel. A ladder 2 is provided between the two walkways. The ladder is fixedly installed on the surface of the smoke exhaust channel.
[0020] The arrangement of the walkway and ladder can protect the safety of maintenance personnel. In the gas turbine exhaust assembly structure, the exhaust flexible connection comprises two steel sections, and the steel sections are fixedly connected to the rubber piece.
[0021] The exhaust flexible connection can absorb the axial and radial thermal expansion of the transferred gas, preventing the thermal expansion generated by the gas from entering and being transferred to the downstream, resulting in excessive expansion of the downstream exhaust section, cracking, and air and heat leakage.
[0022] Working principle:
[0023] When the gas turbine generates gas, it is released from the main box and transferred upward. The gas first enters the exhaust flexible connection, and then enters the exhaust expansion section 6 through the exhaust flexible connection 7. The exhaust expansion section can increase the area of gas circulation and reduce the pressure and temperature of the gas. Therefore, after the gas enters the exhaust silencer section 5, it is more easily silenced by the exhaust silencer section. The gas enters the square-to-circular transition section 4 through the exhaust silencer section. The square-to-circular transition section transforms the flue from square to circular, which increases the area of flue gas circulation and makes the flue gas discharge more complete. The gas enters the exhaust channel 3 through the square-to-circular transition section, and then is released from the rain cap 1 above the exhaust channel. The rain cap can prevent dust, rain and snow from entering the flue and affecting the entire exhaust assembly. The exhaust work is thus completed.
[0024] The platform 2 provided on the top of the exhaust silencer section and the smoke exhaust passage, as well as the ladder connecting the two platforms, can protect the safety of maintenance personnel to a certain extent.
Claims
1. A gas turbine exhaust assembly structure, characterized by: The exhaust bracket is fixedly connected to the exhaust silencer section, the exhaust expansion section is fixedly connected to the exhaust silencer section below, the exhaust expansion section is fixedly connected to the exhaust flexible connection by bolts, the square-to-circular transition section is fixedly connected to the exhaust silencer section above, the square-to-circular transition section is fixedly connected to the exhaust channel by bolts, and a rain cap is fixedly installed above the exhaust channel by bolts; A walkway is provided at the top of the exhaust silencer section and the top of the smoke exhaust channel. A ladder is provided between the two walkways. The ladder is fixedly installed on the surface of the smoke exhaust channel.
2. A gas turbine exhaust assembly structure according to claim 1, characterized in that: The exhaust flexible connection comprises two steel sections, and the steel sections are fixedly connected to the rubber piece.