阅读说明：本技术 一种燃气轮机进气过滤器的智能运维系统 (Intelligent operation and maintenance system of gas turbine air inlet filter ) 是由 陈劼 李波 朱慧泉 卢桂贤 袁奇 于 2021-08-31 设计创作，主要内容包括：本发明提供一种燃气轮机进气过滤器的智能运维系统,涉及燃机技术领域。该燃气轮机进气过滤器的智能运维系统,包括过滤器、压气机和燃气轮机,所述燃气轮机与压气机连接,所述压气机与过滤器连接,所述过滤器内设置有第一级滤芯、第二级滤芯和第三极滤芯,所述过滤器位置连接有第一级滤芯压差变送器、第二级滤芯压差变送器、第三级滤芯压差变送器、过滤器总压差变送器,所述压气机和燃气轮机连接有电厂控制系统。本发明基于SIS系统,利用过滤器的运行数据以及从SIS来的相关数据,采用多信息融合实现进气过滤器的健康状态的自分析、自诊断,解决单一依靠滤芯压差,无法全面准确把握滤芯健康状态的问题,同时依据运行数据实现滤芯寿命的预测。(The invention provides an intelligent operation and maintenance system of a gas turbine air inlet filter, and relates to the technical field of gas turbines. This gas turbine admits air filter's intelligence fortune dimension system, including filter, compressor and gas turbine, gas turbine is connected with the compressor, the compressor is connected with the filter, be provided with first order filter core, second grade filter core and third pole filter core in the filter, the filter position is connected with first order filter core differential pressure changer, second grade filter core differential pressure changer, third grade filter core differential pressure changer, filter and presses differential pressure changer, compressor and gas turbine are connected with power plant control system. The invention is based on the SIS system, utilizes the operation data of the filter and the related data from the SIS, adopts multi-information fusion to realize the self-analysis and the self-diagnosis of the health state of the air inlet filter, solves the problem that the health state of the filter element can not be comprehensively and accurately mastered only by the pressure difference of the filter element, and simultaneously realizes the prediction of the service life of the filter element according to the operation data.)

1. The utility model provides a gas turbine admits air filter's intelligence fortune dimension system which characterized in that: the gas turbine engine is characterized by comprising a filter (3), a gas compressor (2) and a gas turbine (1), wherein the gas turbine (1) is connected with the gas compressor (2), the gas compressor (2) is connected with the filter (3), a first-stage filter element (8), a second-stage filter element (9) and a third-stage filter element (10) are arranged in the filter (3), a first-stage filter element differential pressure transmitter (11), a second-stage filter element differential pressure transmitter (12), a third-stage filter element differential pressure transmitter (13) and a filter total pressure difference transmitter (14) are connected to the position of the filter (3), and the gas compressor (2) and the gas turbine (1) are connected with a power plant control system (4);

the filter is characterized in that the power plant control system (4) is connected with a first-stage filter element differential pressure transmitter (11), a second-stage filter element differential pressure transmitter (12), a third-stage filter element differential pressure transmitter (13) and a filter total differential pressure transmitter (14), the power plant control system (4) is connected with an SIS system (5), the SIS system (5) is connected with an intelligent operation and maintenance module (7), and a processor (6) is arranged in the intelligent operation and maintenance module (7).

2. The intelligent operation and maintenance system of the gas turbine air inlet filter as claimed in claim 1, wherein: the air compressor (2) is arranged at the downstream of the filter (3) and receives the clean air filtered by the filter (3), and a plurality of sensors are arranged in the filter (3), and at least comprise 1 group of differential pressure sensors and are used for measuring the differential pressure of the upstream and downstream of each filtering stage and the total pressure difference of the filter.

3. The intelligent operation and maintenance system of the gas turbine air inlet filter as claimed in claim 1, wherein: the SIS system (5) is a plant-level monitoring information system, and the SIS system (5) acquires real-time information and parameters of the production process from a lower-layer control network in a communication mode.

4. The intelligent operation and maintenance system of the gas turbine air inlet filter as claimed in claim 1, wherein: the processor (6) is used for receiving environmental condition data and gas turbine operation data from the SIS system (5) and receiving test data of the filter element, the processor (6) is configured to calculate the pressure difference change rate of the filter element at the current stage and the adjacent downstream filter element and the efficiency change rate of the compressor (2), judge and determine the health condition of the filter element, and the pressure difference change rate of the processor (6) and the efficiency change rate of the compressor (2) are obtained.

5. The intelligent operation and maintenance system of the gas turbine air inlet filter as claimed in claim 1, wherein: the processor (6) is configured to determine a life model of the filter element based on pre-accumulated operating data or full life cycle operating data of the filter element, and predict a remaining useful life of the filter element based on the life model, and the model can track the continuous self-adaptation of the measured data over time, thereby improving the fidelity of its prediction.

6. The intelligent operation and maintenance system of the gas turbine air inlet filter as claimed in claim 1, wherein: treater (6) integration is in SIS system (5), has the function that shows all levels of filter core health status weather meter, filter core remaining life.

Technical Field

The invention relates to the technical field of gas turbines, in particular to an intelligent operation and maintenance system of a gas turbine air inlet filter.

Background

The air inlet filter is applied to inlets of various combustion engines, and is generally provided with 1-3 stages of filter elements to remove moisture and dust in air. As the amount of dust loaded by the filter element becomes greater and greater with operating time, the resistance becomes progressively greater and the inlet pressure to the compressor may drop to an undesirable level. In addition, a damaged, poorly sealed, inefficient filter element will cause more particles to flow therethrough and reach the compressor, causing fouling of the compressor blades and vanes, resulting in reduced vibration and surge margins, compressor efficiency attenuation rates. Meanwhile, some particles entering the flow channel can even cause potential safety hazards such as corrosion of high-temperature components, blockage of cooling holes and the like.

In order to avoid and eliminate the potential safety hazards and improve the running economy, the health state of the filter element is detected during running, the filter element is usually maintained by a maintenance strategy taking the pressure difference as the only characteristic value of the health state of the filter element, and the maintenance measures comprise filter element replacement, filter element back flushing, regular water washing and the like. However, the disadvantages of this maintenance strategy are: the differential pressure signal may be a false signal.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides an intelligent operation and maintenance system of a gas turbine air inlet filter, which solves the problem that a pressure difference signal is possibly a false signal.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: an intelligent operation and maintenance system of a gas turbine air inlet filter comprises a filter, a gas compressor and a gas turbine, wherein the gas turbine is connected with the gas compressor, the gas compressor is connected with the filter, a first-stage filter element, a second-stage filter element and a third-stage filter element are arranged in the filter, the filter is connected with a first-stage filter element differential pressure transmitter, a second-stage filter element differential pressure transmitter, a third-stage filter element differential pressure transmitter and a filter total differential pressure transmitter, and the gas compressor and the gas turbine are connected with a power plant control system;

the power plant control system is connected with total differential pressure transmitter of first order filter core differential pressure transmitter, second grade filter core differential pressure transmitter, third grade filter core differential pressure transmitter, filter, the power plant control system is connected with the SIS system, the SIS headtotail has intelligent fortune dimension module, be provided with the treater in the intelligence fortune dimension module.

Preferably, the compressor is arranged at the downstream of the filter and receives the clean air filtered by the filter, and a plurality of sensors are arranged in the filter, and the plurality of sensors at least comprise 1 group of differential pressure sensors and are used for measuring the differential pressure at the upstream and the downstream of each filtering stage and the total pressure difference of the filter.

Preferably, the SIS system is a factory-level monitoring information system, and the SIS system acquires real-time information and parameters of the production process from a lower-layer control network in a communication mode.

Preferably, the processor is used for receiving environmental condition data and combustion engine operation data from the SIS system and receiving test data of the filter element, and the processor is configured to calculate the differential pressure change rate of the filter element at the stage and the adjacent downstream filter element and the efficiency change rate of the compressor, the differential pressure and the differential pressure change rate of the processor and the efficiency change rate of the compressor, and judge and determine the health condition of the filter element.

Preferably, the processor is configured to determine a life model of the filter element based on previously accumulated operating data or full life cycle operating data of the filter element, and predict a remaining useful life of the filter element based on the life model, and the model may track the continuous self-adaptation of the measured data over time, thereby improving the fidelity of its prediction.

Preferably, the processor is integrated in the SIS system and has the functions of displaying the health state weather meter of each stage of filter element and the residual service life of the filter element.

(III) advantageous effects

The invention provides an intelligent operation and maintenance system of a gas turbine air inlet filter. The method has the following beneficial effects:

the invention is based on the SIS system, utilizes the operation data of the filter and the related data from the SIS, adopts multi-information fusion to realize the self-analysis and the self-diagnosis of the health state of the air inlet filter, solves the problem that the health state of the filter element cannot be comprehensively and accurately mastered only by the pressure difference of the filter element, and simultaneously realizes the prediction of the service life of the filter element according to the operation data, thereby facilitating the filter element replacement in advance and avoiding the filter element blockage.

Drawings

FIG. 1 is a block diagram of an intelligent operation and maintenance system of an air intake filter of a combustion engine;

FIG. 2 is a graph of life model life factor versus pressure differential for the present invention;

FIG. 3 is a flow chart of an algorithm model for establishing filter element life according to the present invention.

The reference numbers illustrate:

1. a gas turbine; 2. a compressor; 3. a filter; 4. a power plant control system; 5. an SIS system; 6. a processor; 7. an intelligent operation and maintenance module; 8. a first stage filter element; 9. a second stage filter element; 10. a third stage filter element; 11. a first stage filter element differential pressure transmitter; 12. a second stage filter element differential pressure transmitter; 13. a third stage filter element differential pressure transmitter; 14. and a filter total pressure difference transmitter.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

as shown in fig. 1-3, an embodiment of the present invention provides an intelligent operation and maintenance system for an intake filter of a gas turbine, including a filter 3, a compressor 2, and a gas turbine 1, where the gas turbine 1 is connected to the compressor 2, the compressor 2 is connected to the filter 3, a first-stage filter element 8, a second-stage filter element 9, and a third-stage filter element 10 are disposed in the filter 3, a first-stage filter element differential pressure transmitter 11, a second-stage filter element differential pressure transmitter 12, a third-stage filter element differential pressure transmitter 13, and a filter total differential pressure transmitter 14 are connected to the filter 3, and the compressor 2 and the gas turbine 1 are connected to a power plant control system 4.

The compressor 2 is arranged at the downstream of the filter 3 and receives the clean air filtered by the filter 3, and a plurality of sensors are arranged in the filter 3, and the plurality of sensors at least comprise 1 group of differential pressure sensors and are used for measuring the differential pressure at the upstream and the downstream of each filtering stage and the total pressure difference of the filter.

The power plant control system 4 is connected with first order filter core differential pressure transmitter 11, second level filter core differential pressure transmitter 12, third level filter core differential pressure transmitter 13, filter total differential pressure transmitter 14, the power plant control system 4 is connected with SIS system 5, SIS system 5 is the factory level monitoring information system, SIS system 5 acquires production process real-time information and parameter with the communication mode from lower floor's control network, SIS system 5 is connected with intelligence fortune dimension module 7, be provided with treater 6 in the intelligence fortune dimension module 7.

The processor 6 is configured to determine a life model of the filter element based on previously accumulated operating data or full life cycle operating data of the filter element, and predict a remaining useful life of the filter element based on the life model, and the model may track the continued self-adaptation of the measured data over time, thereby improving its predicted fidelity, the processor 6 being configured to receive environmental condition data, engine operating data, from the SIS system 5.

The filter core testing data is received, the processor 6 is configured to calculate the pressure difference change rate of the filter core at the current stage and the adjacent downstream filter core and the efficiency change rate of the compressor 2, the pressure difference and the pressure difference change rate of the processor 6 and the efficiency change rate of the compressor 2 are judged and determined, and the processor 6 is integrated in the SIS system 5 and has the functions of displaying the health state weather chart of the filter cores at all stages and the residual service life of the filter cores.

Experimental example:

ambient air is filtered through filter 3 and enters the gas turbine1, providing combustion air and cooling air for next energy conversion after the compression of the compressor 2 of the gas turbine, and detecting the differential pressure (P) of the filter 3 of the first-to-third filter element by a first-stage filter element differential pressure transmitter 11, a second-stage filter element differential pressure transmitter 12, a third-stage filter element differential pressure transmitter 13 and a filter total pressure differential transmitter 14 at the positions of the first-to-third filter element during the operation of the gas turbine₁、P₂、P₃P) to the power plant control system 4; the power plant control system 4 calculates the efficiency eta of the compressor 2 and the differential pressure (P) of the filter elements from one level to three levels in the filter 3 according to the operating conditions and the performance of the combustion engine₁、P₂、P₃P) to the SIS system 5, the processor 6 of the intelligent maintenance module 7 of the filter 3 receives the differential pressure P of the first stage filter element 8 from the SIS system 5₁Pressure difference P of the second stage filter element 9₂Pressure differential P of the third stage cartridge 10₃The total differential pressure P of the filter 3 and the efficiency eta of the gas compressor 2 calculate the variation trend of the differential pressure of each stage of filter element.

One to three stage filter element replacement pressure difference set value (A)₁、A₂、A₃And A) presetting in a processor 5, wherein the health state detection method of each stage of filter element is as follows:

criterion for failure of the first stage filter element 8:

(1) when the total differential pressure P of the filter chamber is more than or equal to A,

a) and the differential pressure P of the first stage filter element 8₁＞A₁Or is or

b)The first stage cartridge 8 fails, or

(2)Above the historical value, the first stage filter element 8 fails

Criteria for failure of the second stage cartridge 9:

(1) when the differential pressure P of the filter chamber is more than or equal to A,

a) when the pressure difference P of the second stage filter element 9 is larger₂＞A₂Or is or

b)The second stage cartridge 9 fails or

(2)If the value is higher than the historical value, the second-stage filter element 9 is failed;

criteria for failure of the third stage cartridge 10:

(1) when the differential pressure P of the filter chamber is more than or equal to A,

a) and the third stage filter element differential pressure P₃＞A₃Or is or

b)The filter cartridge 10 fails or

(2)Above the historical value, the cartridge 10 fails.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.