CN-122014410-A - Outdoor fixed gas turbine generator set

CN122014410ACN 122014410 ACN122014410 ACN 122014410ACN-122014410-A

Abstract

The invention provides an outdoor fixed gas turbine generator set which comprises a base and a gas turbine power generation assembly arranged on the base, a noise reduction protective shell arranged on the base to form a set cabin, an air inlet system communicated with the gas turbine power generation assembly and provided with a first air inlet and a second air inlet for collecting external air and external air passing through the set cabin and then introducing the collected external air into the gas turbine power generation assembly, wherein the first air inlet and the second air inlet are provided with air inlet silencers, and the air exhaust system comprises air exhaust silencers arranged outside the set cabin and connected with an air exhaust end of the gas turbine power generation assembly. This embodiment can provide a sufficiently rigid support for the power generation assembly of the gas turbine by providing a base. The muffler is arranged on the first air inlet and the second air inlet, so that turbulence can be reduced, and intake noise can be restrained. The second air inlet enables external air to pass through the power generation assembly of the gas turbine, so that the temperature in the power cabin is reduced while air is supplied, and the normal operation of the unit is ensured.

Inventors

JIANG KUN
YU KAILIANG
LI ZHENQI
FENG LIJIE
Liang Yuefu
MENG HAONAN
MA YUANYUAN
WANG SHIQIANG

Assignees

北京动科瑞利文科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260126

Claims (10)

1. An outdoor stationary gas turbine generator set, comprising: A base and a gas turbine power generation assembly disposed to the base; the noise reduction protective shell is arranged on the base to form a unit cabin; the air inlet system is communicated with the gas turbine power generation assembly and is provided with a first air inlet and a second air inlet, and the first air inlet and the second air inlet are used for collecting external air and external air passing through the unit cabin and then are introduced into the gas turbine power generation assembly, wherein the first air inlet and the second air inlet are provided with an air inlet silencer; The exhaust system comprises an exhaust silencer arranged outside the unit cabin and is connected with the exhaust end of the gas turbine power generation assembly.
2. The outdoor stationary gas turbine generator set of claim 1, wherein the noise reduction protective housing comprises a steel structural frame, an outer plate covered with a high weather resistance corrosion protection coating on the outer side of the steel structural frame, an inner plate provided with a sound absorbing material on the inner side, and a high efficiency sound absorbing material filled between the inner plate and the outer plate.
3. The outdoor stationary gas turbine generator set of claim 1, wherein a refractory partition is disposed within the noise reduction protective housing, dividing the set compartment into a power compartment and an auxiliary equipment compartment; the power cabin is used for placing a generator and a gas turbine of the gas turbine power generation assembly; The auxiliary equipment cabin is used for placing an electric system, a control and protection system and a high-voltage system of the power generation assembly of the gas turbine.
4. The outdoor stationary gas turbine generator set of claim 3, wherein the side walls of the power compartment and auxiliary equipment compartment are provided with access doors that are identical in construction to the noise reduction protective enclosure.
5. The outdoor stationary gas turbine generator set according to claim 3, wherein the air inlet system comprises an air inlet runner arranged above the power cabin, wherein the air inlet runner is sequentially provided with a connecting port communicated with one end of the power cabin, a concentrated air inlet communicated with an air inlet volute of the gas turbine and a first air inlet communicated with the outside; when air is fed in, air fed in from the second air inlet is converged with air fed in from the first air inlet after passing through the generator, the gas turbine and the connecting port, and fed into the gas turbine generator set through the concentrated air inlet.
6. An outdoor stationary gas turbine generator set according to claim 3, characterised in that above the auxiliary equipment compartment a fire-proof compartment is provided for the placement of a daily oil tank; the fireproof compartment is provided with a fireproof partition wall, and a fireproof door is arranged on the fireproof partition wall; The daily oil tank is provided with an explosion-proof visual liquid level meter for real-time monitoring, and a visual window of the explosion-proof visual liquid level meter adopts double-layer laminated explosion-proof glass.
7. The outdoor stationary gas turbine generator set of claim 1, wherein the exhaust system further comprises an expansion joint, an exhaust expansion section, and a muffler elbow connected in sequence in the direction of the gas flow, the expansion joint being connected to the exhaust injection section of the gas turbine, the muffler elbow being connected to the exhaust muffler, wherein, The inner interlayers of the exhaust expansion section and the silencing elbow are filled with aluminum silicate cotton sound absorption materials; an arc-shaped guide vane is arranged in the silencing elbow.
8. The outdoor stationary gas turbine generator set of claim 7, wherein the exhaust silencer comprises a silencer casing, a silencing layer, a plurality of silencing cores, two support assemblies, and a constriction; Two ends of the silencer shell are connected with the silencing elbow and the contraction section; The silencer comprises a silencer shell, a silencer layer, a first pore plate and a second pore plate, wherein the silencer layer is arranged on the inner wall of the silencer shell and comprises an aluminum silicate cotton layer clung to the inner wall of the silencer shell and the first pore plate covers the inner side of the aluminum silicate cotton layer to form an annular silencing channel, and the perforation rate of the first pore plate is increased in a gradient manner along the airflow direction; two support members are respectively connected into both ends of the muffler shell, and a plurality of muffler cores are connected between the two support members.
9. The outdoor stationary gas turbine generator set according to claim 8, wherein each silencing core comprises a second orifice plate which surrounds a cylinder, aluminum silicate cotton is filled in the second orifice plate, and a truncated cone-shaped diversion air head is arranged at the bottom of the second orifice plate; The plurality of silencing cores are in a central annular array, and the density of aluminum silicate cotton filled in the silencing cores positioned at the center is lower than that of aluminum silicate cotton filled in the silencing cores at the periphery.
10. The outdoor stationary gas turbine generator set of claim 1, wherein the support assembly comprises a support frame and a cooling channel having a flowing cooling medium disposed therein.

Description

Outdoor fixed gas turbine generator set Technical Field The invention relates to the technical field of generator sets, in particular to an outdoor fixed gas turbine generator set. Background The gas turbine generator set is widely used as a high-grade emergency guarantee power supply and a black start power supply of key facilities such as a large-scale data center, a nuclear power system, a communication hub and the like due to the advantages of quick start, high power density, stable operation and the like, so that the power requirements of different grades are met, and long-time continuous operation is guaranteed. On-board gas turbine generator sets, while having mobile flexibility, typically have less set power due to vehicle chassis limitations. In addition, the vehicle chassis serves as a base of the unit and cannot provide reliable rigid support. In addition, the related gas turbine generator set is poor in sound insulation effect, and the problem of high noise generally exists, so that vibration can be continuously generated after long-term operation, and the integral structure of the set is affected. Disclosure of Invention The summary of the invention is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. The disclosure is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter. The invention provides an outdoor fixed gas turbine generator set, which solves the technical problems mentioned in the background art section. The outdoor stationary gas turbine generator set of the present invention includes: A base and a gas turbine power generation assembly disposed to the base; the noise reduction protective shell is arranged on the base to form a unit cabin; the air inlet system is communicated with the gas turbine power generation assembly and is provided with a first air inlet and a second air inlet, and the first air inlet and the second air inlet are used for collecting external air and external air passing through the unit cabin and then are introduced into the gas turbine power generation assembly, wherein the first air inlet and the second air inlet are provided with an air inlet silencer; The exhaust system comprises an exhaust silencer arranged outside the unit cabin and is connected with the exhaust end of the gas turbine power generation assembly. Optionally, the noise reduction protective shell comprises a steel structure frame, an outer plate covered with a high weather resistance anti-corrosion coating is arranged on the outer side of the steel structure frame, an inner plate made of sound absorbing materials is arranged on the inner side of the steel structure frame, and high-efficiency sound absorbing materials are filled between the inner plate and the outer plate. Optionally, a fireproof partition wall is arranged in the noise reduction protective shell, and the unit cabin is divided into a power cabin and an auxiliary equipment cabin; the power cabin is used for placing a generator and a gas turbine of the gas turbine power generation assembly; The auxiliary equipment cabin is used for placing an electric system, a control and protection system and a high-voltage system of the power generation assembly of the gas turbine. Optionally, access doors are arranged on the side walls of the power cabin and the auxiliary equipment cabin, and the access doors are identical to the noise reduction protective shell in structure. Optionally, the air inlet system comprises an air inlet runner arranged above the power cabin, wherein the air inlet runner is sequentially provided with a connecting port communicated with one end of the power cabin, a centralized air inlet communicated with an air inlet volute of the gas turbine and a first air inlet communicated with the outside; when air is fed in, air fed in from the second air inlet is converged with air fed in from the first air inlet after passing through the generator, the gas turbine and the connecting port, and fed into the gas turbine generator set through the concentrated air inlet. Optionally, a fireproof compartment is arranged above the auxiliary equipment cabin and is used for placing a daily oil tank; the fireproof compartment is provided with a fireproof partition wall, and a fireproof door is arranged on the fireproof partition wall; The daily oil tank is provided with an explosion-proof visual liquid level meter for real-time monitoring, and a visual window of the explosion-proof visual liquid level meter adopts double-layer laminated explosion-proof glass. Optionally, the exhaust system further comprises an expansion joint, an exhaust expansion section and a silencing elbow which are sequentially connected along the airflow direction, the expansion joint is connected with an exhaust injection section of the gas turbine, the silencing elbow is