CN119381941B - Functional sectional noise reduction ventilation system for electric power facility and control method - Google Patents

Functional sectional noise reduction ventilation system for electric power facility and control method

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Publication number
CN119381941B
CN119381941B CN202411498478.1A CN202411498478A CN119381941B CN 119381941 B CN119381941 B CN 119381941B CN 202411498478 A CN202411498478 A CN 202411498478A CN 119381941 B CN119381941 B CN 119381941B
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CN
China
Prior art keywords
noise reduction
ventilation
section
main transformer
sound
Prior art date
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Active
Application number
CN202411498478.1A
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Chinese (zh)
Other versions
CN119381941A (en
Inventor
王东晖
张壮壮
王放放
姚德贵
张远
张嵩阳
王广周
聂京凯
何强
冯浩东
田旭
吕中宾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electric Power Research Institute of State Grid Henan Electric Power Co Ltd
State Grid Corp of China SGCC
Original Assignee
Electric Power Research Institute of State Grid Henan Electric Power Co Ltd
State Grid Corp of China SGCC
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Application filed by Electric Power Research Institute of State Grid Henan Electric Power Co Ltd, State Grid Corp of China SGCC filed Critical Electric Power Research Institute of State Grid Henan Electric Power Co Ltd
Priority to CN202411498478.1A priority Critical patent/CN119381941B/en
Publication of CN119381941A publication Critical patent/CN119381941A/en
Application granted granted Critical
Publication of CN119381941B publication Critical patent/CN119381941B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/56—Cooling; Ventilation
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/082—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provision for cooling the motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/08—Cooling; Ventilating
    • H01F27/085—Cooling by ambient air
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/33—Arrangements for noise damping
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/24—Circuit arrangements for boards or switchyards
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/56—Cooling; Ventilation
    • H02B1/565—Cooling; Ventilation for cabinets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B7/00—Enclosed substations, e.g. compact substations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

本发明公开了一种电力设施用功能区段式降噪通风系统及控制方法，属于电力设施降噪通风技术领域，所述系统包括：强排通风区段、吸声降噪区段和朝向调整区段；其中强排通风区段与主变室的通风口相连接；强排通风区段包括：透平风机、执行电机和强排通风挡板，透平风机设置于主变室的通风口处，执行电机设置于强排通风挡板的内侧，执行电机可控制强排通风挡板弹开；吸声降噪区段内部固定有局部方孔形硅橡胶微穿孔吸声板；朝向调整区段包括延长段、朝向调整结构和出风口，用于适应主变室的高度，并调整降噪通风系统的出风口朝向。本发明通过设置不同的功能区段，解决了变电站夏季高温大负荷期间，透平风机及主变噪声的控制以及快速通风排烟问题。

This invention discloses a functional zone-based noise reduction ventilation system and control method for power facilities, belonging to the field of power facility noise reduction ventilation technology. The system includes: a forced exhaust ventilation zone, a sound absorption and noise reduction zone, and an orientation adjustment zone. The forced exhaust ventilation zone is connected to the ventilation opening of the main transformer room. The forced exhaust ventilation zone includes: a turbine fan, an actuator motor, and a forced exhaust ventilation baffle. The turbine fan is located at the ventilation opening of the main transformer room, and the actuator motor is located inside the forced exhaust ventilation baffle, which can control the forced exhaust ventilation baffle to open. The sound absorption and noise reduction zone has locally square-hole silicone rubber micro-perforated sound-absorbing panels fixed inside. The orientation adjustment zone includes an extension section, an orientation adjustment structure, and an air outlet, used to adapt to the height of the main transformer room and adjust the orientation of the air outlet of the noise reduction ventilation system. This invention solves the problems of controlling turbine fan and main transformer noise and rapid ventilation and smoke extraction during high-temperature and high-load periods in substations in summer by setting different functional zones.

Description

Functional sectional noise reduction ventilation system for electric power facility and control method
Technical Field
The invention belongs to the technical field of noise reduction and ventilation of electric power facilities, and particularly relates to a functional section type noise reduction and ventilation system for electric power facilities and a control method.
Background
At present, the electric power facilities generally have the problems of high noise, weak ventilation and the like, and taking an indoor transformer substation as an example, the indoor transformer substation is widely used in the current urban electric power system. However, due to the characteristics of small internal space and closed environment, the ventilation and heat dissipation effects are poor, so that joule heat generated by the main transformer running in the internal space cannot be effectively dissipated. Especially when summer is high, resident's power consumption load is high, and the transformer generates heat more seriously to appear transformer oil temperature risees, insulating material accelerated ageing and transformer life-span shorten scheduling problem, even threaten the operation safety of electric wire netting. At present, the problem is generally solved through the ventilation window provided with the turbine fan, but because the rotating speed of the fan is high, and the transformer also generates noise pollution when running, thereby causing the exceeding of the noise of electric power facilities and the field boundary, affecting the daily life of nearby residents, and when the internal electric power equipment of the main transformer room encounters a fire condition, the corresponding condition cannot be timely dealt with by the existing air duct.
The prior art document 1 (CN 205846547U) discloses a noise reduction and intelligent ventilation system of a main transformer room of a 110kV all-indoor transformer substation, wherein a fan room is arranged at the top of the main transformer room, the fan room is provided with a fan, a linkage air valve and a ventilation pipeline, an underground ventilation shaft is arranged at the inlet of a gate to form the ventilation system, a temperature detector and a temperature control box form a main transformer room temperature control system, and a noise reduction system is formed by an impedance muffler, a static pressure box, a double-layer sound absorption wallboard, a pressure release wall, a noise elimination and rain prevention shutter, but the prior art (1) only realizes temperature detection, can not effectively detect the content of indoor smoke and the oxygen content when fire hidden danger or open fire is generated by main transformer indoor equipment, and can not realize linkage fire extinguishing with a fire extinguishing device, (2) the ventilation path length is fixed, and can not shorten the ventilation path to promote ventilation efficiency when special conditions such as abnormal high temperature or smoke are met, and the noise reduction system formed by the impedance muffler, the static pressure box and the like in the technology is not combined with the noise reduction system formed by the main transformer body, the main transformer fan, the noise reduction effect of the noise reduction and the noise reduction effect of the turbine fan.
Prior art document 2 (CN 207728052U) discloses a ventilation and noise reduction channel for an indoor substation, an indoor ventilation opening and an outdoor ventilation opening are arranged on the channel, a noise reduction system is arranged in the channel, but the prior art is essentially an application of an active noise control technology (Active Noise Control, ANC) in an air channel, according to the ANC technical principle, the technology can only realize noise control at an error sensor position, and as a secondary sound source provides additional sound wave energy injection, a noise level increase problem caused by sound wave superposition can occur outside the air channel external ventilation opening, and then noise control in a wider area outside the air channel external ventilation opening cannot be realized.
Therefore, there is a need for a device that can simultaneously solve the problems of cooling, ventilation and noise reduction, and realize efficient forced ventilation and fire extinguishing under the condition of fire hidden danger or fire.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a functional section type noise reduction ventilation system for an electric power facility and a control method thereof, wherein the functional section type noise reduction ventilation system can simultaneously solve the problems of temperature reduction, ventilation and noise reduction.
The invention adopts the following technical scheme.
The invention provides a functional section type noise reduction ventilation system for electric power facilities, which comprises a forced-exhaust ventilation section, a sound absorption noise reduction section and an orientation adjustment section, wherein the forced-exhaust ventilation section, the sound absorption noise reduction section and the orientation adjustment section are sequentially connected through sound insulation sealing rubber from bottom to top, the forced-exhaust ventilation section is connected with a ventilation opening of a main transformer chamber, and each section is fixed with the outer wall of the main transformer chamber through a fastening support structure;
the forced-ventilated section comprises a turbine fan, an execution motor and a forced-ventilated baffle, wherein the turbine fan is arranged at a ventilation opening of the main transformer chamber, the execution motor is arranged at the inner side of the forced-ventilated baffle, and the execution motor can control the forced-ventilated baffle to spring open for forced ventilation and smoke exhaust;
a local square hole-shaped silicon rubber microperforated sound absorbing plate is fixed in the sound absorbing and reducing section and is used for absorbing noise;
The orientation adjusting section comprises an extension section, an orientation adjusting structure and an air outlet, and is used for adapting to the height of the main transformer chamber and adjusting the orientation of the air outlet of the noise reduction ventilation system.
Preferably, the forced-ventilated section further comprises an oxygen content sensor, a temperature sensor, a smoke sensor and a foam fire extinguishing device, wherein the oxygen content sensor, the temperature sensor, the smoke sensor and the foam fire extinguishing device are linked and used for detecting and extinguishing a main transformer chamber.
Preferably, the forced-ventilated section further comprises a pull ring, wherein the pull ring is arranged on the outer side of the forced-ventilated baffle plate and is used for ensuring ventilation and smoke discharge by manually pulling the baffle plate open by an operation and maintenance personnel by means of an insulating operation rod when the execution motor or a control system thereof is damaged.
Preferably, the local square hole-shaped silicone rubber micro-perforation sound absorbing plate comprises A, B types, wherein the A type is a local square hole-shaped silicone rubber micro-perforation sound absorbing plate which is arranged at the right angle of the sound absorbing plate in a square hole shape, and the B type is a local square hole-shaped silicone rubber micro-perforation sound absorbing plate which is arranged in the middle of one side of the sound absorbing plate in a square hole shape.
Preferably, the A, B two types of local square hole-shaped silicon rubber microperforated sound absorbing boards are set at unequal distances among the boards and are installed in a staggered rotation mode in the sound absorbing and noise reducing section to form a spiral square hole channel for ventilation.
Preferably, the length of the extension section can be correspondingly adjusted according to the difference of the heights of the main transformer chambers so as to adapt to the heights of the main transformer chambers.
Preferably, the orientation adjusting structure is a telescopic structure made of sound insulation sealing rubber material and is used for adjusting the orientation of an air outlet of the noise reduction air duct system.
Preferably, the air outlet is designed as an oblique notch and is used for preventing rainwater from entering the noise reduction air channel.
Preferably, the outer wall of each section of the noise reduction ventilation system is made of corrosion-resistant sound insulation materials, and each section is fixed with the outer wall of the main body structure of the electric power facility through expansion bolts.
The second aspect of the invention provides a control method of a functional block noise reduction ventilation system for an electric power facility, which is based on the functional block noise reduction ventilation system for the electric power facility and comprises the following steps:
The method comprises the steps of carrying out periodic detection through a temperature sensor arranged in a noise reduction ventilation system, and when the detection result of the temperature sensor does not exceed a set threshold value, continuing to carry out periodic detection through the temperature sensor;
When the detection result detected by the smoke sensor does not exceed the set threshold value, the fan runs at low and medium speed;
When the detection result detected by the smoke sensor exceeds a set threshold value, the fan runs at a high speed, the foam fire extinguishing device is started, the forced-ventilated baffle plate is sprung open, and the oxygen content sensor starts detection;
When the detection result of the oxygen content sensor meets the requirement of personnel entering, the temperature sensor continues to perform periodic detection;
When the detection result of the oxygen content sensor does not meet the requirement of personnel entering, the fan continues to run at high speed until the detection result of the oxygen content sensor meets the requirement of personnel entering.
Compared with the prior art, the invention has the beneficial effects that at least:
according to the application, by arranging different functional sections, the problems of control of the turbine fan and main transformer noise and rapid ventilation and smoke discharge during high-temperature and heavy-load periods in summer of the transformer substation are solved when the temperature of the main transformer is controlled by the turbine fan;
When the temperature in the main transformer room is too high but no fire condition exists, the application realizes low noise and high-efficiency ventilation and heat dissipation of the main transformer room, wherein the sound absorption and noise reduction section effectively realizes high-efficiency absorption of frequency components with larger amplitude in the noise of the transformer body, the noise of the fan of the transformer accessory and the noise of the turbine fan by arranging the porosity of the silicon rubber microperforated sound absorption board, the thickness of the microperforated sound absorption board and the position and distance of the sound absorption board, and can randomly adjust the direction of an air outlet through the direction adjustment section, thereby avoiding the factory boundary with higher risk of exceeding the standard of the noise, and further reducing the noise level exceeding risk of the factory boundary;
when fire hidden danger or fire occurs in the main transformer room, the forced-ventilated section can realize automatic control detection, fire-extinguishing linkage and flicking of the forced-ventilated baffle plate and shortening of ventilation path through the combination of the sensors, and the forced-ventilated function is realized, and meanwhile, the foam spraying fire extinguishing device can be linked to realize spraying fire extinguishing. After the fire hidden danger is eliminated, the indoor smoke content and the oxygen content of the main transformer can be continuously detected, and life support data support is provided for fire fighting and operation and maintenance personnel.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a noise reduction ventilation system;
FIG. 2 is a schematic view of the structure of the forced-ventilated section (including the sensing and spraying devices);
FIG. 3 is a side view (left) and top view (right) of a spiral square hole channel in a sound absorbing and noise reducing section;
Fig. 4 is a top view and side view (left) of an a-type partial square hole-shaped silicone rubber microperforated sound absorbing panel and a side view (right) of a B-type partial square hole-shaped silicone rubber microperforated sound absorbing panel in a sound absorbing and reducing section;
FIG. 5 is a schematic view of the orientation adjustment section;
FIG. 6 is a top view of the orientation adjustment effect;
FIG. 7 is a flow chart of forced-draft zone control logic;
In the figure, a main transformer chamber, a strong exhaust ventilation section, an oxygen content sensor, a temperature sensor, a smoke sensor, a foam fire extinguishing spray device, a turbine fan, a motor, a strong exhaust ventilation baffle, a pull ring, a sound absorption noise reduction section, a local square hole-shaped silicon rubber micro-perforated sound absorption board, a 4-direction adjustment section, a 41-sound insulation rubber, a 42-extension section, a 43-direction adjustment structure, a 44-air outlet and a 5-fastening support structure are arranged.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. The described embodiments of the application are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art without inventive faculty, are within the scope of the application, based on the spirit of the application.
As shown in fig. 1, embodiment 1 of the present invention provides a functional block-type noise reduction ventilation system for electric power facilities, which includes a forced-air ventilation block 2, a sound absorption noise reduction block 3, and an orientation adjustment block 4.
The forced-ventilated section 2, the sound absorption and noise reduction section 3 and the orientation adjustment section 4 are sequentially connected through sound insulation rubber 41 from bottom to top, wherein the forced-ventilated section 2 is connected with a ventilation opening of the main transformer chamber 1, and each section is fixed with the outer wall of the main transformer chamber 1 through a fastening support structure 5.
As shown in fig. 2, an oxygen content sensor 21, a temperature sensor 22, a smoke sensor 23 and a foam fire-extinguishing spraying device 24 are arranged in the forced-ventilated section 2, and the oxygen content sensor 21, the temperature sensor 22 and the smoke sensor 23 are linked with the foam fire-extinguishing spraying device 24 and are used for detecting and extinguishing a transformer substation.
The forced-ventilated section 2 further comprises a turbine fan 25, an execution motor 26, a forced-ventilated baffle 27 and a pull ring 28, wherein the turbine fan 25 is arranged at a ventilation opening of the main transformer chamber 1, the execution motor 26 is arranged at the inner side of the forced-ventilated baffle 27, and when a fire condition occurs, the execution motor 26 can control the forced-ventilated baffle 27 to pop open according to control logic so as to ensure forced ventilation and smoke exhaust effects;
In a preferred but non-limiting embodiment of the invention, the pull ring 28 is arranged outside the forced ventilation flap 27, so that when the motor 26 or its control system is damaged, the flap is pulled manually by the service personnel by means of an insulating operating lever to ensure the ventilation and smoke evacuation effect.
As shown in fig. 3 and 4, a partially square hole-shaped silicone rubber micro-perforated sound absorbing plate 31 is fixed inside the sound absorbing and reducing section 3, and the micro-perforated structure is used for ensuring sound absorbing effect. The local square hole-shaped silicon rubber microperforated sound absorption plate 31 comprises A, B types, wherein the A type is square hole-shaped and is arranged at the right angle of the sound absorption plate, and the B type is square hole-shaped and is arranged in the middle of one side of the sound absorption plate.
In the preferred but non-limiting embodiment of the invention, the two types A, B are 8 blocks, the porosity of the microperforated structure is different, the distances between plates are not equidistantly set, the two blocks are installed in the sound absorption and noise reduction section 3 in a staggered rotation way, a spiral square hole channel is formed for ventilation, so that a noise reduction cavity is formed, and meanwhile, the peak frequency of the acoustic transmission loss is overlapped or close to a larger-amplitude frequency band in the frequency spectrum of the noise of the transformer body, the noise of the fan of the transformer accessory and the noise of the turbine fan, so that the preferential and effective absorption of the larger-amplitude frequency components in the three types of noise is realized, namely, the higher-amplitude high-decibel frequency band in the sound frequency spectrum is firstly absorbed, the main contradiction is grasped, the main sound source is eliminated, the rest frequency components with small amplitude are greatly reduced to the factory boundary position by means of natural attenuation of air and adjustment of the outlet orientation of an air duct (avoiding the factory boundary with higher superscale risk), and then the requirements of factory boundary noise standard limit (GB 12348) are met.
It should be noted that the applicant of the present invention has noticed that the non-equidistant design is related to the absorption of sound with different frequencies, so that the series of special acoustic designs performed herein are all designed to make the peak frequency of the acoustic transmission loss coincide with or close to the larger frequency band of the amplitude in the frequency spectrum of the transformer body noise, the transformer accessory fan noise and the turbine fan noise, and particularly regarding the distance between plates, if the design is equidistant, the dynamic adjustment range is smaller, and the design of 8 blocks is firstly designed to construct a more suitable silencing cavity structure, and secondly, the thickness of a single microperforated panel can be reduced under the condition of a certain total thickness, so that the self structural load of the single microperforated panel is reduced to improve the durability.
As shown in fig. 5, the direction adjusting section 4 includes an extension section 42, a direction adjusting structure 43 and an air outlet 44, where the extension section 42 can correspondingly adjust its length according to the difference of the heights of the main transformer chambers 1 to adapt to the heights of the main transformer chambers, and the direction adjusting structure 43 is a sound insulation sealing rubber material telescopic structure, so as to facilitate adjusting the air outlet direction of the noise reduction air duct system, so as to avoid the direction towards the sensitive point outside the specific side factory boundary or the factory boundary with higher risk of exceeding the standard, so as to reduce the risk of exceeding the noise level of the factory boundary, and the direction adjusting effect is shown in fig. 6.
The air outlet 44 is designed as an oblique notch, and the upper side is longer than the lower side, so that rainwater can be prevented from entering the noise reduction air channel.
In a preferred but non-limiting embodiment of the invention, the outer wall of each section of the noise reduction ventilation system is made of corrosion-resistant and sound-insulating materials such as hot galvanized steel plates or stainless steel plates, and each section is fixed with the outer wall of the main body structure of the electric power facility through expansion bolts.
The noise reduction ventilation system taking the transformer substation as an example can be also applied to electric power facilities such as generators and transformers. As shown in fig. 7, embodiment 2 of the present invention discloses a control method of a functional block noise reduction ventilation system for an electric power facility, comprising the steps of:
The method comprises the steps of carrying out periodic detection through a temperature sensor arranged in a noise reduction ventilation system, and when the detection result of the temperature sensor does not exceed a set threshold value, continuing to carry out periodic detection through the temperature sensor;
When the detection result detected by the smoke sensor does not exceed the set threshold value, the fan runs at low and medium speed;
when the detection result detected by the smoke sensor exceeds a set threshold, the fan runs at a high speed, the foam fire extinguishing device is started at the same time, the forced-ventilated baffle plate is sprung open, and the oxygen content sensor starts detection;
When the detection result of the oxygen content sensor meets the requirement of personnel entering, the temperature sensor continues to perform periodic detection;
When the detection result of the oxygen content sensor does not meet the requirement of personnel entering, the fan continues to run at high speed until the detection result of the oxygen content sensor meets the requirement of personnel entering.
Compared with the prior art, the invention has the beneficial effects that at least:
according to the application, by arranging different functional sections, the problems of control of the turbine fan and main transformer noise and rapid ventilation and smoke discharge during high-temperature and heavy-load periods in summer of the transformer substation are solved when the temperature of the main transformer is controlled by the turbine fan;
When the temperature in the main transformer room is too high but no fire condition exists, the application realizes low noise and high-efficiency ventilation and heat dissipation of the main transformer room, wherein the sound absorption and noise reduction section effectively realizes high-efficiency absorption of frequency components with larger amplitude in the noise of the transformer body, the noise of the fan of the transformer accessory and the noise of the turbine fan by arranging the porosity of the silicon rubber microperforated sound absorption board, the thickness of the microperforated sound absorption board and the position and distance of the sound absorption board, and can randomly adjust the direction of an air outlet through the direction adjustment section, thereby avoiding the factory boundary with higher risk of exceeding the standard of the noise, and further reducing the noise level exceeding risk of the factory boundary;
when fire hidden danger or fire occurs in the main transformer room, the forced-ventilated section can realize automatic control detection, fire-extinguishing linkage and flicking of the forced-ventilated baffle plate and shortening of ventilation path through the combination of the sensors, and the forced-ventilated function is realized, and meanwhile, the foam spraying fire extinguishing device can be linked to realize spraying fire extinguishing. After the fire hidden danger is eliminated, the indoor smoke content and the oxygen content of the main transformer can be continuously detected, and life support data support is provided for fire fighting and operation and maintenance personnel.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made to the specific embodiments of the present invention without departing from the spirit and scope of the present invention, and any modifications and equivalents are intended to be included in the scope of the claims of the present invention.

Claims (7)

1.一种电力设施用功能区段式降噪通风系统，其特征在于：1. A functional zone-type noise reduction ventilation system for power facilities, characterized in that: 包括：强排通风区段(2)、吸声降噪区段(3)和朝向调整区段(4)；所述强排通风区段(2)、吸声降噪区段(3)和朝向调整区段(4)由下至上依次通过隔声密封橡胶(41)相连接，其中强排通风区段(2)与主变室(1)的通风口相连接，各区段分别经紧固支撑结构(5)同主变室(1)的外壁进行固定；It includes: a forced ventilation section (2), a sound absorption and noise reduction section (3), and an orientation adjustment section (4); the forced ventilation section (2), the sound absorption and noise reduction section (3), and the orientation adjustment section (4) are connected from bottom to top by sound insulation and sealing rubber (41), wherein the forced ventilation section (2) is connected to the ventilation opening of the main transformer room (1), and each section is fixed to the outer wall of the main transformer room (1) by a fastening support structure (5); 所述强排通风区段(2)包括：透平风机(25)、执行电机(26)和强排通风挡板(27)，所述透平风机(25)设置于主变室(1)的通风口处，执行电机(26)设置于强排通风挡板(27)的内侧，执行电机(26)可控制强排通风挡板(27)弹开，用于强制通风排烟；The forced ventilation section (2) includes: a turbine fan (25), an actuator motor (26), and a forced ventilation baffle (27). The turbine fan (25) is located at the ventilation opening of the main transformer room (1), and the actuator motor (26) is located inside the forced ventilation baffle (27). The actuator motor (26) can control the forced ventilation baffle (27) to open for forced ventilation and smoke extraction. 所述吸声降噪区段(3)内部固定有局部方孔形硅橡胶微穿孔吸声板(31)，用于对噪声进行吸收；所述局部方孔形硅橡胶微穿孔吸声板(31)包括A、B两型，A型为方孔形设置于吸声板的直角处的局部方孔形硅橡胶微穿孔吸声板，B型为方孔形设置于吸声板的一边中间的局部方孔形硅橡胶微穿孔吸声板；所述A、B两型局部方孔形硅橡胶微穿孔吸声板，其板间距离不等距设定，在吸声降噪区段(3)内交错旋转安装，形成螺旋形的方孔通道用于通风；The sound absorption and noise reduction section (3) is fixed with a locally square-hole silicone rubber micro-perforated sound-absorbing plate (31) for absorbing noise. The locally square-hole silicone rubber micro-perforated sound-absorbing plate (31) includes two types, A and B. Type A is a locally square-hole silicone rubber micro-perforated sound-absorbing plate with square holes set at the right angle of the sound-absorbing plate, and Type B is a locally square-hole silicone rubber micro-perforated sound-absorbing plate with square holes set in the middle of one side of the sound-absorbing plate. The locally square-hole silicone rubber micro-perforated sound-absorbing plates of types A and B are not equidistant from each other and are installed alternately and rotated in the sound absorption and noise reduction section (3) to form a spiral square hole channel for ventilation. 所述朝向调整区段(4)包括延长段(42)、朝向调整结构(43)和出风口(44)，用于适应主变室(1)的高度，并调整降噪通风系统的出风口朝向；The orientation adjustment section (4) includes an extension section (42), an orientation adjustment structure (43), and an air outlet (44), which are used to adapt to the height of the main transformer room (1) and adjust the orientation of the air outlet of the noise reduction ventilation system. 通过设置在降噪通风系统中的温度传感器进行周期性检测，当温度传感器的检测结果没有超过设定阈值时，温度传感器继续进行周期性检测；当温度传感器的检测结果超过设定阈值时，启动烟感传感器检测；The temperature sensor installed in the noise reduction ventilation system performs periodic detection. When the temperature sensor's detection result does not exceed the set threshold, the temperature sensor continues to perform periodic detection; when the temperature sensor's detection result exceeds the set threshold, the smoke sensor is activated. 当烟感传感器检测的检测结果没有超过设定阈值时，透平风机(25)低、中速运转；当烟感传感器检测的检测结果超过设定阈值时，透平风机(25)高速运转，同时启动泡沫灭火装置，强排通风挡板(27)弹开，含氧量传感器启动检测；When the smoke sensor detects that the result does not exceed the set threshold, the turbine fan (25) operates at low and medium speeds; when the smoke sensor detects that the result exceeds the set threshold, the turbine fan (25) operates at high speeds, the foam extinguishing device is activated, the forced exhaust ventilation baffle (27) pops open, and the oxygen content sensor is activated to detect. 当含氧量传感器的检测结果满足人员进入要求时，温度传感器继续进行周期性检测；当含氧量传感器的检测结果不满足人员进入要求时，透平风机(25)继续高速运转，直至含氧量传感器的检测结果满足人员进入要求。When the oxygen content sensor detects that the requirements for personnel entry are met, the temperature sensor continues to perform periodic detection; when the oxygen content sensor detects that the requirements for personnel entry are not met, the turbine fan (25) continues to run at high speed until the oxygen content sensor detects that the requirements for personnel entry are met. 2.根据权利要求1所述的电力设施用功能区段式降噪通风系统，其特征在于：2. The functional zone noise reduction ventilation system for power facilities according to claim 1, characterized in that: 所述强排通风区段(2)还包括：含氧量传感器(21)、温度传感器(22)、烟感传感器(23)和泡沫灭火喷淋装置(24)，含氧量传感器(21)、温度传感器(22)、烟感传感器(23)与泡沫灭火喷淋装置(24)联动，用于对主变室(1)的检测及灭火。The forced ventilation section (2) further includes: an oxygen content sensor (21), a temperature sensor (22), a smoke sensor (23), and a foam fire extinguishing sprinkler device (24). The oxygen content sensor (21), temperature sensor (22), smoke sensor (23), and foam fire extinguishing sprinkler device (24) are linked together to detect and extinguish fire in the main transformer room (1). 3.根据权利要求1所述的电力设施用功能区段式降噪通风系统，其特征在于：3. The functional zone noise reduction ventilation system for power facilities according to claim 1, characterized in that: 所述强排通风区段(2)还包括拉环(28)，拉环(28)设置于强排通风挡板(27)的外侧，用于在执行电机(26)或其控制系统受损时，由运维人员借助绝缘操作杆人工拉开挡板以确保通风排烟。The forced ventilation section (2) also includes a pull ring (28), which is located on the outside of the forced ventilation baffle (27) and is used by maintenance personnel to manually pull open the baffle with an insulated operating rod to ensure ventilation and smoke exhaust when the actuator (26) or its control system is damaged. 4.根据权利要求1所述的电力设施用功能区段式降噪通风系统，其特征在于：4. The functional zone noise reduction ventilation system for power facilities according to claim 1, characterized in that: 所述延长段(42)可依据主变室(1)高度的不同，对应调整其长度以适应主变室的高度。The length of the extension section (42) can be adjusted according to the height of the main transformer room (1) to adapt to the height of the main transformer room. 5.根据权利要求1所述的电力设施用功能区段式降噪通风系统，其特征在于：5. The functional zone noise reduction ventilation system for power facilities according to claim 1, characterized in that: 所述朝向调整结构(43)为隔声密封橡胶材质可伸缩结构，用于调整降噪风道系统的出风口朝向。The orientation adjustment structure (43) is a retractable structure made of sound-insulating and sealing rubber material, used to adjust the orientation of the air outlet of the noise reduction duct system. 6.根据权利要求1所述的电力设施用功能区段式降噪通风系统，其特征在于：6. The functional zone noise reduction ventilation system for power facilities according to claim 1, characterized in that: 所述出风口(44)为斜向切口设计，用于防止雨水进入降噪风道。The air outlet (44) is designed with a slanted cut to prevent rainwater from entering the noise reduction duct. 7.根据权利要求1所述的电力设施用功能区段式降噪通风系统，其特征在于：7. The functional zone noise reduction ventilation system for power facilities according to claim 1, characterized in that: 所述降噪通风系统各区段外壁由耐锈蚀隔声材料构成，并且各区段分别经膨胀螺栓同电力设施主体结构外壁进行固定。The outer walls of each section of the noise reduction and ventilation system are made of rust-resistant sound insulation material, and each section is fixed to the outer wall of the main structure of the power facility by expansion bolts.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009127913A (en) * 2007-11-21 2009-06-11 Shimizu Corp Smoke control system
CN109346954A (en) * 2018-10-31 2019-02-15 国网上海市电力公司 A Transformer Room Temperature Controlled Automatic Heat Dissipation Circulation System
CN209857308U (en) * 2019-03-08 2019-12-27 李玲燕 Automatic wall-facing wind pressure resisting exhaust device
CN112584686A (en) * 2021-01-05 2021-03-30 中国南方电网有限责任公司超高压输电公司天生桥局 Intelligent high-speed airflow heat dissipation device for high-voltage direct-current key equipment
CN114470555A (en) * 2021-12-22 2022-05-13 交通运输部公路科学研究所 A kind of highway tunnel intelligent automatic monitoring fire extinguishing and smoke exhaust device and method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003119727A (en) * 2001-10-19 2003-04-23 Showa Alumi Viewtech Co Ltd Acoustical panel
CN201099927Y (en) * 2007-09-30 2008-08-13 四川正升环保科技有限公司 Aerating and sound-deadening wall
CN205846547U (en) * 2016-07-17 2016-12-28 江西省电力设计院 A kind of 110kV full indoor substation transformer chamber's noise reduction and intelligent ventilating system
CN106855003A (en) * 2016-12-13 2017-06-16 重庆道同动力机械设备有限公司 The noise elimination structure of silencer of generator
CN209640805U (en) * 2019-05-11 2019-11-15 徐州工业职业技术学院 A kind of server noise reduction radiator structure
CN110599993B (en) * 2019-09-24 2024-06-21 哈尔滨工程大学 Carbon fiber sound baffle for underwater detection equipment
CN216598638U (en) * 2021-11-07 2022-05-24 广州顺溢风环保科技有限公司 Special ventilation and noise reduction device for main transformer chamber of transformer substation
CN217004652U (en) * 2021-12-09 2022-07-19 青岛能源设计研究院有限公司 Vibration-damping noise-reducing heat exchange station equipment

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009127913A (en) * 2007-11-21 2009-06-11 Shimizu Corp Smoke control system
CN109346954A (en) * 2018-10-31 2019-02-15 国网上海市电力公司 A Transformer Room Temperature Controlled Automatic Heat Dissipation Circulation System
CN209857308U (en) * 2019-03-08 2019-12-27 李玲燕 Automatic wall-facing wind pressure resisting exhaust device
CN112584686A (en) * 2021-01-05 2021-03-30 中国南方电网有限责任公司超高压输电公司天生桥局 Intelligent high-speed airflow heat dissipation device for high-voltage direct-current key equipment
CN114470555A (en) * 2021-12-22 2022-05-13 交通运输部公路科学研究所 A kind of highway tunnel intelligent automatic monitoring fire extinguishing and smoke exhaust device and method

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