CN216053244U

CN216053244U - Fire protection system of gas turbine generator set

Info

Publication number: CN216053244U
Application number: CN202121753908.1U
Authority: CN
Inventors: 毕付伦; 吴立功; 王文书
Original assignee: Yantai Jereh Petroleum Equipment and Technologies Co Ltd
Current assignee: Yantai Jereh Petroleum Equipment and Technologies Co Ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2022-03-15
Anticipated expiration: 2031-07-29

Abstract

The application discloses gas turbine generating set's fire protection system relates to gas turbine power generation and equips the field of putting out a fire. A fire protection system for a gas turbine power generation unit includes: the smoke detection element is used for detecting whether smoke exists in the mute box body; the flame detection element is used for detecting whether flame exists in the mute box body; the temperature detection element is used for detecting the temperature in the mute box body; an alarm device for giving an alarm; a fire extinguishing device for spraying fire extinguishing aerosol; and the control device is respectively connected with the smoke detection element, the flame detection element, the temperature detection element, the alarm device and the fire extinguishing device and is used for controlling the alarm device to send out an alarm and controlling the fire extinguishing device to spray aerosol to extinguish fire according to the detection information of the smoke detection element, the flame detection element and the temperature detection element. The problem that there is the conflagration risk in gas turbine generating set can be solved to this application.

Description

Fire protection system of gas turbine generator set

Technical Field

The application belongs to the technical field of fire extinguishing of gas turbine power generation equipment, and particularly relates to a fire protection system of a gas turbine generator set.

Background

The gas turbine generator set is equipment which takes a gas turbine as a power source and drives a generator to generate electricity after the speed of the gas turbine generator set is regulated through a gear box, wherein the gas turbine, the gear box, the generator and other components are all arranged in a mute box body. However, the silent box body contains fuel, lubricating oil, electrical equipment and the like, so that the risk of fire is easy to occur, once a fire occurs, the power supply is influenced slightly, and the serious loss is caused to the gas turbine generator set.

SUMMERY OF THE UTILITY MODEL

The purpose of the embodiment of the application is to provide a fire protection system of a gas turbine generator set, which can solve the problem that the gas turbine generator set has fire risks.

In order to solve the technical problem, the present application is implemented as follows:

the embodiment of the application provides a gas turbine generating set's fire protection system, and this fire protection system includes:

the smoke detection element is used for detecting whether smoke exists in a silent box body of the gas turbine generator set;

the flame detection element is used for detecting whether flame exists in the mute box body;

the temperature detection element is used for detecting the temperature in the mute box body;

an alarm device for giving an alarm;

the fire extinguishing device is used for spraying fire extinguishing aerosol into the mute box under the condition of fire;

and the control device is respectively connected with the smoke detection element, the flame detection element, the temperature detection element, the alarm device and the fire extinguishing device and is used for controlling the alarm device to send out an alarm and controlling the fire extinguishing device to spray aerosol to extinguish fire according to the detection information of the smoke detection element, the flame detection element and the temperature detection element.

Whether the fire disaster happens can be determined according to the smoke, flame and temperature conditions in the silent box body of the gas turbine generator set, and when at least one of the smoke and the flame exists in the silent box body, the early warning alarm can be sent out to attract attention of workers, so that the effect of preventing the fire disaster can be achieved. When at least one of smoke and flame exists in the mute box body and the temperature reaches a temperature threshold value or continuously rises, namely, a fire disaster happens, at the moment, on one hand, a fire disaster alarm can be sent out to remind workers of the fire disaster, so that the workers can timely deal with or withdraw, on the other hand, aerosol can be controlled to be sprayed into the mute box body, and the effect of efficiently and quickly extinguishing a fire can be achieved through the aerosol.

Drawings

FIG. 1 is a schematic structural diagram of a fire protection system of a gas turbine power generation unit according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of an aerosol canister according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of an aerosol storage tank and an aerosol protection module disclosed in an embodiment of the present application;

FIG. 4 is a schematic control logic diagram of a method for fire protection of a gas turbine power generation unit according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of the control logic of the disclosed method for fire protection with alarm function, delayed fire extinguishing function and control of gas turbine shutdown in accordance with an embodiment of the present application;

FIG. 6 is a schematic diagram of the control logic for a manually initiated fire suppression routine disclosed in an embodiment of the present application;

fig. 7 is a logic diagram illustrating a judgment of whether there is a person in a mute box according to an embodiment of the present application;

fig. 8 is a logic diagram illustrating the judgment of whether combustible gas exists in the mute box according to the embodiment of the present application.

Description of reference numerals:

1-a mute box body; 2-a gas turbine; 3-a gearbox; 4-a generator; 5, an electric cabinet; 6-a control device; 7-a first input-output module; 8-a combustible gas detection element; 9-a transmitter; 10-a smoke detection element; 11-a temperature sensing element; 12-a flame detection element; 13-aerosol installation box; 14-aerosol reservoir; 15-aerosol protection module; 16-a manual switch; 17-a suppression switch; 18-an alarm device; 19-a backup power supply; 20-a second input-output module; 21-a control system;

31-bolt set; 32-bolt; 33-a fixed support; 34-cable.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. 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 application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The embodiments of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

The embodiment of the application provides a gas turbine generating set's fire protection system for play the conflagration guard action to gas turbine generating set, realized the control to the condition of a fire in gas turbine generating set's silence box 1, so that in time discover the condition of a fire and handle to the condition of a fire, thereby can protect silence box 1 and even whole gas turbine generating set, and then can effectively reduce economic loss, and guaranteed gas turbine generating set normal electricity generation. Wherein, gas turbine generating set can include gas turbine 2, gear box 3 and generator 4, and the output shaft of gas turbine 2 is connected with the input transmission of gear box 3, and the output of gear box 3 is connected with the transmission of generator 4, so, can transmit power and motion to generator 4 through gear box 3 during gas turbine 2 operates to drive the operation of generator 4 and generate electricity.

Fig. 1 is a schematic structural diagram of a fire protection system of a gas turbine generator set according to an embodiment of the present application, and as shown in fig. 1, the fire protection system includes a smoke detection element 10, a flame detection element 12, a temperature detection element 11, an alarm device 18, a fire extinguishing device, and a control device 6.

The fire protection system of the gas turbine generator set in the embodiment of the application is mainly used for carrying out fire protection on a mute box body 1 of the gas turbine generator set. Wherein, the smoke detection element 10, the flame detection element 12, the temperature detection element 11 and the fire extinguishing device are all arranged in the mute box body 1. The smoke detection element 10 is used for detecting whether smoke exists in the mute box body 1 of the gas turbine generator set; the flame detection element 12 is used for detecting whether flame exists in the mute box body 1 of the gas turbine generator set; the temperature detection element 11 is used for detecting whether flame exists in the mute box body 1 of the gas turbine generator set; the fire extinguishing device is used for spraying aerosol into a mute box body 1 of the gas turbine generator set when a fire disaster occurs so as to realize fire extinguishing through the aerosol.

In addition, the fire protection system comprises an alarm device 18, wherein the alarm device 18 is used for giving an alarm. Such as pre-alarm alarms, fire alarms, etc.

In addition, the fire protection system further comprises a control device 6, wherein the control device 6 is respectively connected with the smoke detection element 10, the flame detection element 12, the temperature detection element 11, the alarm device 18 and the fire extinguishing device to realize signal transmission, so that the alarm device 18 can be controlled to send out corresponding alarm according to the detection information of the smoke detection element 10, the flame detection element 12 and the temperature detection element 11, and the fire extinguishing device is controlled to spray fire extinguishing aerosol into the silent box body 1.

The following will specifically describe the arrangement and connection relationship of some components in the fire protection system.

The smoke detection element 10, the flame detection element 12 and the temperature detection element 11 are all installed on the top or the side surface in the silent box body 1 of the gas turbine generator set and are respectively used for detecting the smoke condition, the flame condition and the temperature condition in the silent box body 1. In some embodiments, the various detection elements may be arranged more than one, for example, in pairs, symmetrically, crosswise, etc., so that the detection area may be increased to improve fire protection.

The fire extinguishing device is positioned in the mute box body 1, and in some embodiments, the fire extinguishing device can be directly fixed on the wall surface of the mute box body 1; of course, the fixing structure may be fixed to the wall surface of the mute case 1. Can be through extinguishing device to spraying aerosol in the silence box 1 when taking place the conflagration to put out a fire through aerosol high efficiency, fast, with the loss that reduces the conflagration and cause.

The alarm device 18 may be disposed on an outer side wall of the silent case 1, for example, an area near the top end of the outer side wall, and is used for giving an alarm to indicate the protection condition of the gas turbine generator set.

Optionally, the fire protection system further comprises a first input/output module 7, the first input/output module 7 is connected to the smoke detection element 10, the flame detection element 12 and the temperature detection element 11, respectively, and the first input/output module 7 is further connected to the control device 6, and the detection information of the smoke detection element 10, the flame detection element 12 and the temperature detection element 11 can be transmitted to the control device 6 through the first input/output module 7. For example, the first input/output module 7 is connected to the control device 6 via a communication line, so that information detected by the respective detection elements can be transmitted to the control device 6 via the communication line. It should be noted that, the working principle of the specific structural machine of the first input/output module 7 can refer to the related art, and is not specifically described in the embodiment of the present application.

Optionally, the fire protection system further comprises a manual switch 16, and the manual switch 16 can also be used for starting the fire protection system to achieve a protection effect on the gas turbine generator set. The manual switch 16 is connected to the first input/output module 7, so that the manual switch 16 can be connected to the control device 6 via the first input/output module 7. In this way, the first input/output module 7 can transmit the manual starting program signal to the control device 6, so as to realize the manual starting of the fire protection system. It should be noted that the above-mentioned manual switch 16 can be understood as a switch that can be turned on or off, and the specific structure and the operation principle thereof can be referred to the related art, and in the embodiment of the present application, at least the turning on of the fire protection system can be realized.

In some embodiments, the manual switch 16 is installed outside the mute box 1 and is conveniently operated manually, so that the fire protection system can be manually started in time when a fire occurs, thereby reducing the loss caused by the fire.

Optionally, the fire protection system further comprises a suppression switch 17, the suppression switch 17 being used to suppress the fire protection system from initiating a fire suppression procedure. In order to realize the above process, a second input/output module 20 is further added, wherein the inhibit switch 17 is connected with the control device 6 through the second input/output module 20, and the inhibit switch 17 is further disposed between the power supply and the second input/output module 20, so that the inhibit switch 17 can control the second input/output module 20 to be connected with or disconnected from the power supply.

Based on the above arrangement, when the operator operates in the mute box body 1, the suppression switch 17 needs to be pressed down to cut off the second input/output module 20 and the power supply, at this moment, even if a fire disaster occurs, the fire protection system cannot be started, so that the fire extinguishing device cannot receive the fire extinguishing instruction sent by the control device 6, aerosol can be effectively prevented from being mistakenly sprayed, and the safety of the operator in the mute box body 1 is ensured. In contrast, when the gas turbine generator set is operating normally, the inhibitor switch 17 is in the reset state, and the second input/output module 20 and the power supply are not disconnected. Here, the power supply may be an external power supply or a backup power supply 19.

Optionally, the fire extinguishing apparatus in the embodiment of the present application includes an aerosol storage tank 14, and the aerosol storage tank 14 is disposed in the sound-deadening case 1. Referring to fig. 3, for protection, the aerosol protection module 15 in the embodiment of the present application is provided with a cable 41, and the cable 41 includes a first connection and a second connection, wherein the first connection is connected with the second input and output module 20, and the second connection is connected with the aerosol storage tank 14. The second input and output module 20 and the aerosol storage tank 14 can be respectively connected with the control device 6 through the first connection and the second connection, so that on one hand, the aerosol storage tank 14 can be controlled to be started through the control device 6 and the second input and output module 20 to realize aerosol fire extinguishing, and on the other hand, the aerosol storage tank 14 can be protected through the aerosol protection module 15 to prevent the aerosol storage tank 14 from being influenced by an accident. It should be noted here that the aerosol storage tank 14 may be a container meeting the use requirement, and the specific structure of the aerosol protection module 15 and the protection principle thereof may refer to the related art, which is not limited in the embodiment of the present application.

Optionally, in the embodiment of the present application, the fire extinguishing apparatus includes the aerosol storage tank 14, the aerosol installation box 13, and the fixing bracket 33. In order to realize the installation of aerosol storage tank 14 and ensure the security of aerosol storage tank 14, aerosol storage tank 14 can be set up in aerosol install bin 13 in the embodiment of this application to play installation and guard action to aerosol storage tank 14 through aerosol install bin 13.

Referring to fig. 2, the aerosol installation box 13 is provided with a fixing lug, the fixing lug is rotatably connected with a fixing bracket 33, and the fixing bracket 33 is connected to the mute box body 1.

In some embodiments, the fixing bracket 33 and the fixing lifting lug of the aerosol mounting box 13 are rotatably connected through the bolt set 31, and the fixing bracket 33 is fixed on the side wall of the silence box body 1 through the bolt 32, so that the aerosol mounting box 13 can be adjusted in angle to adjust the aerosol spraying direction. Of course, the aerosol spraying condition can be adjusted in the front-back and left-right directions according to the requirement.

In order to play the fire protection effect to gas turbine generating set, fire protection system in this application embodiment still includes combustible gas detecting element 8, and this combustible gas detecting element 8 is connected with controlling means 6, and combustible gas detecting element 8 is used for detecting whether combustible gas takes place to leak in the silence box 1 to with detect information transmission to controlling means 6. Alternatively, the combustible gas detection element 8 may be a smoke sensor, and in addition, may be another detection element having a function of detecting smoke leakage. In addition, the combustible gas detection element 8 may be installed on the top or side of the silent case 1, near the fuel inlet position.

Optionally, the fire protection system further comprises a transmitter 9 for displaying the concentration of the combustible gas, and the transmitter 9 is connected with the combustible gas detection element 8 and the control device 6 respectively. Thus, when the concentration of the combustible gas reaches the lower limit value preset in the control device 6, the control device 6 controls the alarm device 18 to give an alarm to remind the worker that the combustible gas leaks. When the concentration of the combustible gas reaches the upper limit value preset in the control device 6, the control device 6 controls the alarm device 18 to give an alarm, and controls the gas turbine 2 to be closed, the supply system of the combustible gas to be closed and the exhaust system of the mute box body 1 to be opened through the control system 21 of the gas turbine generator set. In some embodiments, transmitter 9 may be mounted within a control room.

When the combustible gas detection element 8 detects the combustible gas in the mute box body 1, the combustible gas is converted into a current signal, such as a 4-20mA current signal, according to the concentration of the combustible gas, the current signal is transmitted to the transmitter 9, and the transmitter 9 displays the concentration of the combustible gas on a display screen and transmits the concentration of the combustible gas to the control device 6 through a communication line. When the concentration of the combustible gas reaches a low alarm concentration value (i.e., a lower limit value preset in the control device 6), the control device 6 controls the alarm device 18 to issue an alarm to remind the worker of the occurrence of the combustible gas leakage. When the combustible gas concentration reaches a high alarm concentration value (i.e., an upper limit value preset in the control device 6), the control device 6 controls the alarm device 18 to give an alarm, and at the same time, transmits a concentration signal of the combustible gas with the high alarm concentration to the control system 21 of the gas turbine generator set, so that the control system 21 of the gas turbine generator set controls the gas turbine 2 to stop, closes a valve in the gas supply system, and continuously opens the exhaust system to discharge the leaked combustible gas to the outside of the silent box body 1.

In some embodiments, the control device 6 can control the alarm device 18 to work through the first input-output module 7; the alarm device 18 may be an audible and visual alarm.

Based on the setting, the problem that the combustible gas leaks to bring potential safety hazards can be effectively relieved.

Optionally, the fire protection system further comprises a backup power supply 19, which backup power supply 19 may be understood as a fire-fighting dedicated power supply. The backup power supply 19 is connected to the first input/output module 7, the second input/output module 20, the control device 6, and the fire extinguishing device in the fire protection system, respectively, so that the fire protection system can be supplied with power in case of interruption of the external power supply.

In some embodiments, the power supply for supplying power to the second input/output module 20 may be the standby power supply 19, and the suppression switch 17 is located between the standby power supply 19 and the second input/output module 20, so that the on/off between the standby power supply 19 and the second input/output module 20 may be controlled by the suppression switch 17, and further, the fire extinguishing apparatus may be suppressed from being started by the suppression switch 17, so as to avoid the problem that the mute box body 1 has workers to misspray aerosol.

In some embodiments, the control device 6, the first input/output module 7, and the second input/output module 20 may be disposed in the electric cabinet 5, and the control device 6, the first input/output module 7, and the second input/output module 20 may be protected by the electric cabinet 5.

In some embodiments, the fire protection system may include a plurality of groups of fire extinguishing devices, and the groups of fire extinguishing devices are respectively disposed in a plurality of different areas of the silent case 1. For example, a plurality of groups of fire extinguishing devices may be disposed at the bottom of the silent casing 1 at intervals, so that aerosol can be respectively sprayed at a plurality of areas at the bottom of the silent casing 1, so that the entire silent casing 1 is rapidly filled with aerosol. Of course, multiple groups of fire extinguishing devices may be respectively disposed in the top area or other areas of the silent box 1, and in short, aerosol can be rapidly filled in the entire silent box 1, and the specific installation position of the fire extinguishing device is not limited in the embodiment of the present application.

FIG. 4 is a schematic diagram of the control logic of the fire protection method for the gas turbine generator set. As shown in fig. 4, an embodiment of the present application provides a method for protecting a gas turbine generator set from a fire, the method including:

judging whether smoke exists in a silent box body 1 of the gas turbine generator set;

judging whether flame exists in the mute box body 1 or not;

when at least one of smoke and flame exists in the mute box body 1, outputting an early warning instruction to control and send out an early warning alarm;

judging whether the temperature in the mute box body 1 reaches a temperature threshold or continuously raises the temperature;

when at least one of smoke and flame exists in the mute box body 1 and the temperature reaches a temperature threshold or continuously rises, a fire disaster is judged to occur, and a fire alarm instruction and a fire extinguishing instruction are output so as to control the fire alarm and the aerosol injection to extinguish the fire.

It can be understood that, in the embodiment of the present application, the smoke condition, the flame condition and the temperature condition in the mute box body 1 can be respectively detected in real time, and corresponding judgment is made according to the detected conditions, so that the mute box body 1 and even the whole gas turbine generator set can be protected.

When smoke exists in the mute box body 1, an early warning alarm can be sent out to attract attention of workers and remind the workers to carry out manual inspection, so that the effect of preventing fire disasters can be achieved.

When flame exists in the mute box body 1, an early warning alarm can be sent out to attract attention of workers and remind the workers of carrying out manual inspection, so that the effect of preventing fire can be achieved.

When existing smoke and flame exist in the mute box body 1, early warning alarm can be given out to attract attention of workers and remind the workers to carry out manual inspection, and therefore the effect of preventing fire can be achieved.

In the embodiment of the present application, the smoke detection element 10 may be used to detect the smoke condition in the mute box 1, and the detected smoke information is sent to the control device 6 through the smoke detection element 10, so as to determine whether smoke exists in the mute box 1 through the control device 6.

In the embodiment of the present application, the flame detection element 12 may be used to detect the flame condition in the mute box 1, and the flame detection element 12 sends the detected flame information to the control device 6, so as to determine whether there is flame in the mute box 1 through the control device 6.

In the embodiment of the application, the sound-light alarm signal can be adopted to realize the sending of the early warning alarm so as to remind the staff to check or evacuate in advance.

When at least one of smoke and flame exists in the mute box body 1, and the temperature in the mute box body 1 also reaches a set alarm temperature threshold or continuously rises for a period of time according to a certain temperature rise rate, the fire disaster in the mute box body 1 is judged to occur, and then a fire extinguishing program can be started.

When a fire disaster happens in the mute box body 1, a fire disaster alarm is sent out to arouse attention of workers and remind the workers of the fire disaster, meanwhile, a fire extinguishing program is started to spray aerosol into the mute box body 1, aerosol particles are ultrafine powder and have a large specific surface area, after the aerosol particles are sprayed into a fire scene, active groups generated by combustion collide with the aerosol particles to be adsorbed, and the fire extinguishing is realized by consuming the combustion active groups. So, can realize high-efficient, putting out a fire fast through aerosol to play the guard action to gas turbine generator set, make its loss reduce to minimumly.

In the embodiment of the present application, the temperature detecting element 11 may be used to detect the temperature condition in the mute box 1, and the detected temperature information is sent to the control device 6 through the temperature detecting element 11, so as to determine whether the temperature in the mute box 1 reaches the temperature threshold or continuously increases the temperature through the control device 6.

In the embodiment of the application, the sound and light alarm signal can be adopted to realize the sending of fire alarm so as to remind the staff to take fire extinguishing measures or evacuate.

Alternatively, the smoke detection element 10 may comprise a smoke detector, smoke sensor, or the like; the flame detection element 12 may include a flame detector, flame sensor, or the like; the temperature detection element 11 may include a temperature sensor or the like. In addition, the alarm device 18 may be used to send out corresponding alarm information, such as an audible and visual alarm. Fire extinguishing means may also be used to inject aerosols into the quiet tank 1, such as aerosol tank 14.

In the embodiment of this application, adopt the aerosol to put out a fire, compare in modes such as gaseous extinguishing fire, liquid are put out a fire, aerosol release rate is faster, can reach the concentration of putting out a fire that needs fast to can put out a fire by high-efficient, quick completion more.

Referring to fig. 5, optionally, when it is determined that a fire occurs, the method includes: and outputting a fire extinguishing delay instruction, wherein the fire extinguishing delay instruction is used for controlling aerosol delay injection.

It can be understood that, in order to strive for more time to remind the worker to evacuate to the safe area, in the embodiment of the application, after a fire occurs in the mute box body 1, the fire extinguishing delay program is started to remind the worker to evacuate to the safe area within a delay period, and after the delay is finished, the fire extinguishing program is started to spray aerosol into the mute box body 1, so that fire extinguishing is realized.

In some embodiments, the time period of the delay may be several seconds or several minutes, such as 30 seconds, 1 minute, 2 minutes, and so on, and the specific time period is not limited.

It should be noted here that the above-mentioned delay process may be implemented by using a delay unit, and in the embodiment of the present application, the specific structure of the delay unit and the working principle thereof may be referred to in the related art.

With continued reference to fig. 5, alternatively, when it is determined that a fire has occurred, alarm information is sent to the control system 21 of the gas turbine generator set, and the gas turbine 2 is controlled to stop by the control system 21. In addition to this, the supply air valve closing and the ventilation system closing can be controlled.

It will be appreciated that in the event of a fire, the gas turbine 2 may be shut down by the control system 21, and no further gas supply to the gas turbine 2 is required, i.e. the gas supply valve may be closed to stop supplying gas to the gas turbine 2, thereby effectively alleviating the problem of the combustible gas exacerbating the fire. Meanwhile, the ventilation system is closed, so that the mute box body 1 becomes a closed space to prevent the ejected aerosol from being discharged through the ventilation system, and thus, the ejected aerosol can rapidly fill the inner cavity of the mute box body 1, and the fire extinguishing efficiency is improved.

Optionally, the fire protection method comprises: and receiving a signal for starting a fire extinguishing program, and outputting a fire alarm instruction and a fire extinguishing instruction so as to control the fire alarm and spray aerosol to extinguish fire.

It will be appreciated that the fire suppression procedure described above may be initiated manually. Referring to fig. 6, when a worker finds that a fire occurs in the gas turbine generator set, the worker can directly and manually trigger a fire extinguishing program, and after the manually triggered fire extinguishing program is received, on one hand, the worker can send out a fire alarm to remind the worker of evacuating to a safe area, and on the other hand, aerosol can be sprayed into the silent box body 1 to extinguish the fire.

It should be noted here that, in addition to the manual fire extinguishing procedure, an automatic fire extinguishing procedure may be adopted, for example, according to some detected information (e.g., smoke, flame, temperature, etc.) in the fire protection system, the fire extinguishing procedure may be automatically started when it is determined that a fire is present after analysis, and this way, fire extinguishing may also be achieved.

In addition, after the fire extinguishing program is triggered manually, the fire extinguishing delay program can be started simultaneously when a fire alarm is given out, so that personnel can evacuate to a safe area within a delay time period, the fire extinguishing program is started after the delay is finished, and aerosol fire extinguishing is realized.

Referring to fig. 7, optionally, the fire protection method includes: and receiving a signal for inhibiting the starting of a fire extinguishing program so as to control the mute box body 1 not to spray aerosol.

It can be understood that before the fire is extinguished by spraying the aerosol into the mute box 1, it is necessary to ensure that no staff is in the mute box 1, so as to prevent the danger of suffocation of the staff after the aerosol fills the mute box 1. Considering that the power supply requirement of the aerosol is needed for spraying, in the embodiment of the application, the aerosol spraying can be inhibited by cutting off the power supply. Based on this, can effectively prevent that the staff from triggering the fire extinguishing program by mistake and causing bodily injury when the operation in silence box 1.

In the embodiment of the present application, the suppression switch 17 may be used to cut off the aerosol storage tank 14 for storing the aerosol and the power supply, so that the aerosol injection may be suppressed to avoid the false triggering of the fire extinguishing procedure.

Referring to fig. 8, optionally, the fire protection method includes: judging whether the mute box body 1 has combustible gas or not; when combustible gas exists in the mute box body 1, a leakage alarm instruction is output to control the emission of a leakage alarm.

It can be understood that during the operation of the gas turbine generator set, combustible gas is required to be continuously supplied to the gas turbine generator set as fuel, however, once the combustible gas leaks, the gas turbine generator set is easy to cause fire, explosion and other risks, the normal operation of the gas turbine generator set is seriously affected, and even the personal and property safety is endangered. Based on this, this application embodiment carries out real-time detection to the combustible gas in the silence box 1, when detecting that combustible gas appears in the silence box 1 and leaks, in time sends out the leakage alarm to remind the staff to make corresponding measure and deal with combustible gas and leak, perhaps remind the staff in time to withdraw.

In the embodiment of the present application, the combustible gas detection element 8 may be adopted to detect the combustible gas leakage condition in the mute box body 1, and the combustible gas leakage information detected by the combustible gas detection element 8 is sent to the control device 6, so as to determine whether the combustible gas leakage occurs in the mute box body 1 through the control device 6.

With continued reference to fig. 8, optionally, the detection of the combustible gas concentration may be used to determine the severity of the combustible gas leak, so as to take countermeasures according to the severity of the leak. Based on this, in the embodiment of the present application, when there is combustible gas in the mute box 1, outputting a leakage alarm instruction to control the alarm of leakage, including: when the concentration of the combustible gas reaches the lower limit value of the preset concentration, outputting a leakage alarm instruction to control the emission of a leakage alarm; when the concentration of the combustible gas reaches the upper limit value of the preset concentration, a leakage alarm instruction is output, and a combustible gas leakage signal is sent to a control system 21 of the gas turbine generator set, so that the control system 21 controls the gas turbine 2 to stop, the gas supply valve to close and the ventilation system to open.

In the embodiment of the application, when the concentration of the combustible gas leaked in the mute box body 1 is relatively low, a combustible gas leakage alarm can be sent out to remind workers to evacuate or stop the combustible gas leakage in time; when the concentration of the combustible gas leaked in the mute box body 1 is relatively high, on one hand, a leakage alarm is sent to remind workers of evacuating, on the other hand, the machine is stopped in time, the combustible gas supply is cut off, and the mute box body 1 is ventilated in time, so that the concentration of the combustible gas in the mute box body 1 can be reduced to the greatest extent, and further, the risk of fire and explosion in the mute box body 1 is reduced.

The fire protection in the embodiment of the application adopts the following specific principle:

the principle of automatically detecting fire hazard: when at least one of the smoke detection element 10 and the flame detection element 12 detects smoke information and/or flame information in the mute box 1, the first input/output module 7 sends the smoke information and/or flame information to the control device 6, the control device 6 receives the detected smoke information and/or flame information and sends an early warning instruction to the first input/output module 7, so that the early warning instruction is transmitted to the alarm device 18 through the first input/output module 7, and the alarm device 18 is controlled to send out an audible and visual alarm signal to remind a worker to perform manual inspection; in this case, when the temperature detecting element 11 detects that the temperature in the mute box 1 also reaches the set alarm temperature value or continuously increases the temperature at a certain temperature increase rate for a period of time, the first input/output module 7 sends the temperature information to the control device 6, and finally the control device 6 determines that a fire occurs in the mute box 1.

The principle of automatic fire extinguishing: when the control device 6 judges that a fire disaster occurs, the control device 6 sends a fire extinguishing instruction to the second input and output module 20, the fire extinguishing instruction is transmitted to the fire extinguishing device through the second input and output module 20, the fire extinguishing device is switched to the trigger device from a standby state, so that trigger current is generated in the aerosol storage tank 14, the medicament is subjected to rapid reaction under the action of the trigger current to generate aerosol, aerosol particles are ultrafine powder and have a large specific surface area, and after the aerosol particles are sprayed into a fire scene, active groups generated by combustion collide and adsorb with the aerosol particles, so that fire extinguishment is realized by consuming the combustion active groups.

In addition, the fire extinguishing procedure can also be triggered by the manual switch 16, as follows: when a fire breaks out, the manual switch 16 is manually turned on, a manual starting signal is transmitted to the control device 6 through the first input/output module 7, and after the control device 6 receives a signal for manually starting a fire extinguishing program, a fire alarm instruction and a fire extinguishing instruction are output, so that a fire alarm is sent out through the alarm device 18, for example, the control device 6 starts an audible and visual alarm through the first input/output module 7; and, control unit 6 can also output the time delay instruction of putting out a fire while reporting to the police, in order to start the time delay procedure of putting out a fire, thus can make the staff withdraw to safe region in the time delay interval, after waiting to delay to end, control unit 6 sends the instruction of putting out a fire to second input/output module 20, is transmitted the instruction of putting out a fire to extinguishing device by second input/output module 20, thus can spray the aerosol in the silence box 1, in order to put out a fire.

Meanwhile, in case of fire, the control device 6 sends alarm information to the control system 21 of the gas turbine generator set, that is, the fire alarm information is transmitted to the control system 21 of the gas turbine generator set, after the gas turbine generator set receives the fire alarm information, the shutdown program of the gas turbine 2 is started immediately, the valve of the gas supply pipeline is closed immediately, and the ventilation system of the silent box body 1 is closed immediately, so that the dissipation of the aerosol after injection can be effectively prevented.

It should be noted that in the embodiment of the present application, when the control device 6 determines a fire after receiving the detection information of each detection element and receives a signal of manually starting the fire extinguishing program from the manual switch 16, the fire extinguishing device can be quickly started to realize efficient and quick fire extinguishing; and moreover, fire alarm information is transmitted to the gas turbine generator set, and a control system 21 of the gas turbine generator set controls the gas turbine 2 to stop, close a valve of an air supply pipeline and close a ventilation system of the mute box body 1, so that the operation of the gas turbine generator set is guaranteed.

The principle of combustible gas detection: adopt combustible gas detecting element 8 to detect the combustible gas in silence box 1, after combustible gas detecting element 8 detected combustible gas, convert into 4-20mA signal according to combustible gas's concentration and transmit to changer 9, show combustible gas concentration through changer 9, changer 9 transmits combustible gas concentration information to controlling means 6 through communication mode to judge by controlling means 6. When the concentration of the combustible gas reaches the alarm lower limit value set in the control device 6, the audible and visual alarm sends audible and visual alarm information to prompt that the combustible gas leaks; when the concentration of the combustible gas reaches the alarm upper limit value set in the control device 6, the audible and visual alarm device sends audible and visual alarm information to prompt the leakage of the combustible gas, meanwhile, the combustible gas leakage alarm information is transmitted to the control system 21 of the gas turbine generator set through the control device 6, the gas turbine generator set control system 21 controls the gas turbine 2 to be closed, the supply system of the combustible gas to be closed, and the exhaust system of the silent box body 1 to be continuously opened until the combustible gas in the silent box body 1 is completely exhausted.

In summary, the aerosol mode is adopted to extinguish the fire, the design of a conveying pipeline is not needed, compared with the modes of gas fire extinguishing, water fire extinguishing and the like, the number of pressure containers and conveying pipelines is reduced, the overall structure is simpler, the occupied space is smaller, the weight is lighter, and the gas turbine generator set can be suitable for a mobile gas turbine generator set; meanwhile, the releasing speed of the aerosol is higher, and the required fire extinguishing concentration of the aerosol can be achieved in a shorter time, so that the fire can be extinguished more quickly and efficiently; and the aerosol does not generate greenhouse gas in the spraying process, so that the environmental protection performance of the fire protection system is improved.

The embodiment of the application can also realize the automatic or manual start of the fire protection system of the gas turbine generator set, thereby improving the fault-tolerant rate of the fire protection system and further ensuring the protection performance of the fire protection system on fire.

The embodiment of the application can also effectively avoid the risk of suffocation of workers, thereby better guaranteeing the life safety of the workers.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A fire protection system for a gas turbine power generation unit, the fire protection system comprising:

an alarm device for giving an alarm;

the fire extinguishing device comprises an aerosol storage tank for storing fire extinguishing aerosol, the aerosol storage tank is arranged in the silent box body, and the aerosol storage tank is used for spraying the fire extinguishing aerosol into the silent box body under the condition of fire;

2. The fire protection system of a gas turbine power generation unit of claim 1, further comprising a first input-output module;

the first input and output module is respectively connected with the smoke detection element, the flame detection element, the temperature detection element and the control device, and the first input and output module is used for respectively transmitting detection information of the smoke detection element, the flame detection element and the temperature detection element to the control device.

3. The fire protection system of a gas turbine generator set of claim 2, further comprising a manual switch for activating the fire protection system;

the manual switch is connected with the control device through the first input/output module, and the manual switch is used for transmitting a manual starting program signal to the control device through the first input/output module under the condition of fire.

4. The fire protection system of a gas turbine power generation unit of claim 1, further comprising a second input-output module and a kill switch;

the second input and output module is respectively connected with the fire extinguishing device and the control device and is used for transmitting signals between the fire extinguishing device and the control device;

the suppression switch is connected between the second input/output module and the power supply, and is used for controlling the on-off between the second input/output module and the power supply.

5. The fire protection system of a gas turbine power generation unit of claim 1, further comprising a second input-output module;

the fire extinguishing device comprises an aerosol protection module, the aerosol protection module is connected with a cable, the cable comprises a first connection wire and a second connection wire, the first connection wire is connected with the second input and output module, and the second connection wire is connected with the aerosol storage tank.

6. The gas turbine power generation unit fire protection system of claim 1, the fire suppression device comprising an aerosol mounting case and a mounting bracket;

the aerosol storage tank set up in the aerosol install bin, the aerosol install bin is equipped with fixed lug, fixed lug with the fixed bolster rotates to be connected, the fixed bolster connect in the silence box.

7. The fire protection system of a gas turbine generator set of claim 1, further comprising a combustible gas detection element;

the combustible gas detection element is connected with the control device and used for detecting whether combustible gas leaks from the mute box body or not.

8. The gas turbine power generation unit fire protection system of claim 7, further comprising a transmitter;

the transmitter is connected with the combustible gas detection element and the control device respectively and is used for displaying the concentration of the combustible gas;

when the concentration of the combustible gas reaches a lower limit value preset in the control device, the control device controls the alarm device to give an alarm;

and under the condition that the concentration of the combustible gas reaches an upper limit value preset in the control device, the control device controls the alarm device to give an alarm, and controls the gas turbine to be closed, the supply system of the combustible gas to be closed and the exhaust system of the mute box body to be opened through the control system of the gas turbine generator set.

9. The fire protection system of a gas turbine power generation unit of any one of claims 1 to 8, further comprising a backup power source;

the emergency power supply is connected with a first input/output module, a second input/output module, a control device and a fire extinguishing device in the fire protection system respectively, and is used for supplying power to the fire protection system under the condition that an external power supply of the fire protection system is interrupted.

10. The gas turbine power generation unit fire protection system of claim 1, wherein the fire protection system includes a plurality of sets of the fire suppression devices;

the fire extinguishing devices are respectively arranged in a plurality of different areas in the silent box body.