(A)muffler works

(B)[Introduction] generator room silencer principle

(C)noise control engineering principles and the rule of specimens taken from the room out of the entry, diesel air intake systems, exhaust systems and exhaust cooling water tank exhaust pipe of tobacco smoke exhaust system were muffler, acoustic , shock, noise and other aspects of design and construction, effective and comprehensive way of governance for each diesel generator room noise outward diffusion of the noise limits in the room, and I want to be discharged outside the room noise differentiation, gradual absorption and attenuation, fully eliminated. Can be taken according to the requirements in the engine room at the top of the electrical room and the walls of sound-absorbing, sound insulation measures to reduce noise in the room, to ensure that the room temperature and the diesel engine operating temperature will not rise, take forced ventilation, ventilation measures. The generator work needed fresh air promptly replenished, dirty hot air to drain away in time, the Company into the exhaust channel settings silencer plates, silencer sheet, damping sound absorption sheet. Installation of two exhaust muffler pipe tobacco, its technical content, silencing effect and degree of specialization over the years by the majority of users praise.

(D)[Composed of] silencer

(E)Standard configuration

(F) configurations
The top of the engine room noise processing, noise processing room wall

(G)[Silencers principles and advantages]

(H)Part I: the principle of the silencer

(I)propagation of noise is the main medium of air, so the room air intake system and the exhaust system is the biggest source of noise, wins moving company for central air conditioning operating characteristics of various systems designed muffler equipment to enable the smooth flow of air central air conditioning and cooling towers to meet work, abate air flow out of the noise, in order to achieve the noise reduction effect.

(J)Part II: Program benefits

(K)
1) energy efficient, environmentally friendly

(L)
2) long life warranty

(M)
3) ensure the normal operation of the machine

(N)
4) economy, versatility

(O)
5) easy maintenance and ease of operation.

(P)
2, design:

(Q)
A. silencer door.

(R)
Structure using a metal frame attached to the internal high-strength rock wool insulation materials, exterior metallic iron,? Silencer door with the surrounding metal frame using a

(S)soft seal hose seal.

(T)
B. muffler inlet air duct.

(U)
The use of zinc metal and acoustic rock wool is made with structural lightweight, nice features.? Air through the air intake silencer air tank into the engine room, silencer slot can effectively block wind noise came outside the room.

(V)
C. exhaust silencer wind slot.

(W)
The use of zinc metal and acoustic rock wool produced.

(X)
Hot air is discharged through the exhaust air duct silencer room, noise is spread out from the diversion channel silencer wind groove.

(Y)
D. silencer exhaust system outside the room.

(Z)
According to the actual structure of your company to the engine room, this system is the engine room set silencer silencer wall.

(AA)
3, the technical requirements:

(AB)
      Party room according to normal operating conditions, the company professionals to

(AC)design and construction.

(AD)
4, silencers criteria:

(AE)
The company designed the muffler works ≤60 decibel noise level.

(AF)
[Design criteria and basis]

(AG)
   My company's environmental silencer installation is in strict accordance with the relevant standards and regulations of the state to the construction, the specific design

(AH)based on the following:

(AI)
An "industrial enterprise vendors noise standard" boundary 50dB; (PS: National Standard)
Standard of noise at boundary of industrial enterprises

(AJ)
Standard of noise at boundary of industrial enterprises

(AK)
(GB12348-90 implementation)

(AL)
This standard specifies the applicable factory and may cause noise pollution enterprises boundary noise limits, as follows: Unit: equivalent sound level Leq (dBA). Each category in the daytime and nighttime standard values are: residential, cultural and educational institutions mainly 55,45; residential, commercial, industrial and commercial center mixed zone 60,50; industrial area 65,55; traffic arteries on both sides of the road 70 55. Simultaneously with standard monitoring methods.
Standards for implementation of the "People's Republic of China Environmental Protection Law" and "People's Republic of China Environmental Noise Pollution Prevention Act," noise hazard control industrial enterprises formulate plant boundary.
2, according to the specific location of the generator room layout.
(Two), and distribution projects

(AM)
1, automatic and cabinet engineering

(AN)
After a few generators and machines and machine after quite a power generator to supply the load, according to the size of the load and decided to open several machines (75% at nominal load units - the case of the lowest fuel consumption) , so as to save the diesel generators the purpose of reducing costs. Implementation does not ask off the power to protect the normal production of the factory, when the unit converted to use spare unit can be incorporated into the operating system, then load all go to the standby unit has been run, and then discontinue the operation of the unit, halfway completely without power. Multiple units operating in parallel, a sudden increase in load current shared equally by the impact of multiple units, each unit so that the force reduction, voltage and frequency

(AO)stability, prolong the working life of the unit.

(AP)
Screen Design:

(AQ)
     A modular power distribution cabinets, four weeks have closure plate, protection class IP40, cabinet four box beams for punching, free and convenient to install various bracket. The upper part is enclosed control room, with ventilation louvers on both sides of the opening hole, left hinged door for easy operator maintenance operations. The whole group 2mm thick enclosure with special electrolytic plate, after forming pickling, drying Bureau, spray, then dried and other processes to ensure that its not easy to paint, rust corrosion. Base with U-channel support, so that the entire cabinet can secure to stand on

(AR)the cable channel.
Busbar (bus):

(AS)
     All surfaces of all tinned busbar connection, ensure access to reliable, labeled with

(AT)yellow, green, red, black four

(AU)
     Color-coded to show the phase sequence, shiny.

(AV)
From the start and stop:

(AW)
  1 When the mains fails, the choice to start the generator set as a priority priority starts and automatically synchronize closing the ATS cabinet (provided by the Party) transmission, and then send electricity to the load by the ATS cabinet cabinet.
  2 when the output load exceeds the total parallel generators given total power over 70%, parallel cabinet will automatically output start signal, the next generator set start and automatic synchronization closing feeding into the grid.
  3 When the total load is less than the total output of generator sets in parallel constant power 25% or less, parallel cabinet opening will be issued with stop signal. The unit will automatically shut down one by one opening and the delay until the start of the unit only priority.
  4 When the mains supply is normal, ATS cabinet automatic reversal of electricity supply,

(AX)

(AY)parallel cabinet will each opening and delayed stop

(AZ).
Automatic tracking, synchronization:

(BA) 
     Using automatic frequency, phase tracking, automatic synchronization closing

(BB)electronic automatic synchronizer, tune in unit

(BC)
     Under normal reaction speed system state, when within three seconds after the unit reach the rated speed parallel process can be completed without any adjustment operator.
Load automatically assigned:

(BD)
     Etc. with no difference between the use of automatic load distribution system, fully electronic, highly responsive, high-paced,

(BE)     According to different power generators, according to the size distribution of the ratio of the average total load. From no load to full automatic
     Load distribution deviation rate can be controlled within 10%. PID closed-loop control with a link in the pre-load fluctuations can increase the amount of oil before the speed changes, unlike conventional speed control system generally need to speed down before refueling hysteresis characteristics, so that the power grid and better performance.
Protection:
   1 when the unit fault linkage Trip: If the unit in operation due to high water temperature

(BF)

(BG)shutdown protection and other issues, it

(BH)
     Shunt trip switch linkage while avoiding reverse power and drag the other operating

(BI)units.
   2 reverse power protection: The unit can not normally cause the unit when the engine is running or control system failure

(BJ)
     Force control system will automatically cut off the unit, concurrent sound and light alarms.
   3 over-current protection: When running the unit exceeds its rated load carried by 80% -100% (adjustable)), the control system will automatically cut off the unit, concurrent sound and light alarms.

(BK)
   4 parallel cabinet panel unit has 360 degree rotation pointer synchronization table, synchronized lights and multi-loop frequency, voltage trimming,

(BL)
     In the emergency manual and the car can be observed and adjustment unit and

(BM)busbar frequency difference, voltage. Achieved manually in parallel.

(BN)
   5 and has a prominent position on the disk drive cabinet self-locking red emergency

(BO)stop button, when on duty found Cuoshou

(BP)
When less of an emergency, you can press this button, the unit instantly opening exit parallel system.
(Three), ATS automatic switching cabinet

(BQ)
  Role: to achieve two-way power, including electricity and mains, electricity and power generation, or between) the automatic switch to ensure normal power requirements of the user. Voltage Range: (400VAC / 50HZ capacity range: 63A a 6300A security measures: automatic operation, mechanical, electrical double chain of shopping malls and hotels, and factories for power interruption time requirements more stringent power system, you should use the City / generator. automatic switching system, the system can automatically go to the original power supply system, backup power systems within 5 seconds, in order to maintain normal power supply.

(BR)
Works
If the original power supply system for the city, when the mains power or three phase power phase, the system automatically switches off the city power immediately and automatically start the generator, the generator up and running, 3 seconds will power sent, when the incoming mains normal, delay 30 seconds to stop the generator automatically switches to the mains supply.

(BS)
If the original supply system for the generator, when generating opportunities downtime, the system automatically switches off the generator power immediately and automatically

(BT)converted to the mains supply.

(BU)
Main features:
1, the main circuit breakers Schomburg high beauty ATS were the electrical and mechanical interlock, closing with electric motors, manual closing and other accessories. Always only guaranteed way to power on the load, job performance, safety, reliability, durability .
2, auxiliary circuits were imported time relay, relay auxiliary circuits and other advanced features, work instructions and stable operation. Were automatic, manual flexible use.
3, with mains recovery delay, mains failure convinced delay, delay switching quiet area, generator sets with load delay, delay and other cooling generators with delay function
4, the series can be used with any brand of remote start with the use of automated unit can be controlled automatically start and stop the generator. Automatically converted power, so as to achieve stable power supply system of automatic protection function, can be described as the best power distribution products.

(BV)
Standard equipment

(BW)
In ensuring the quality and reliability of the premise, we introduced two systems for customers to choose, one for all imports; one for domestic.