At a glance, the solution analysis of medium-sized computer room engineering
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The computer room can be divided into computer room floor reinforcement, computer room decoration, computer room power distribution and lightning protection grounding, air conditioning fresh air and ventilation, access control and water leakage alarm, security protection, KVM and network equipment management, computer room environment and power equipment monitoring management, fire fighting and extinguishing And 11 systems including alarm, integrated wiring and communication system, computer room operation and maintenance integrated management.
1. Project Overview
The computer room of a data center is on the 4th floor of an office building. The building is a reinforced concrete frame structure with a floor load of 600kg/m2, a floor height of 4.40m, and a net height of 2.8m. The computer room area is about 630m2. The goal of the computer room is to meet the business needs of enterprises, support real-time online data and centralized processing of information, and support the development and development of new business applications.
The computer room is divided into 11 subsystems according to functions:
(1) Computer room floor reinforcement system.
(2) Computer room decoration system.
(3) Power distribution and lightning protection grounding system in the computer room.
(4) Air conditioning fresh air and ventilation system.
(5) Access control and water leakage alarm system.
(6) Security system.
(7) KVM and network equipment management system.
(8) Computer room environment and power equipment monitoring and management system.
(9) Fire fighting and alarm system.
(10) Integrated wiring and communication system.
(11) Computer room operation and maintenance integrated management system.
2. Introduction to each subsystem
(1) Computer room floor reinforcement system
As the floor slab of the computer room bears 600kg/m2, considering the weight of UPS and batteries, the bearing capacity of the UPS/air-conditioning room and archive room has been increased from 600kg/m2 on the original building floor to 1000kg/m2. Using carbon fiber cloth reinforcement technology, the carbon cloth is matched with carbon glue. In the installation of computer equipment, precision air conditioners, UPS, power distribution cabinets, cabinets and other equipment, angle steel brackets are used as the base, and the angle steel brackets are fixed to the ground with anchor bolts, and strong shock-absorbing rubber pads are used to meet the anti-vibration requirements of the equipment.
(2) Computer room decoration system
Based on the principles of advancement, practicability, and safety, the core equipment and materials adopt well-known brands to ensure that the computer room has an elegant, refined texture, smooth lines, and a modern computer room style.
1. Technical issues such as winter heat preservation, summer heat insulation and anti-condensation of the computer room are important considerations in the design of the computer room. Especially in summer, the outdoor temperature is high and the relative humidity of the air is also high. Large temperature difference and improper heat preservation treatment in the equipment room will cause condensation on the two adjacent interfaces in the equipment room area. More importantly, the condensation on the surface of the lower ceiling structure will damage adjacent facilities and affect work. At the same time, the load of the precision air conditioner in the computer room area will increase, resulting in a waste of energy. Therefore, in this case, the rubber-plastic board is spread all over the floor surface that has been flattened, and then a layer of thin galvanized steel sheet is spread on the rubber-plastic board, and the galvanized steel sheets are bridged and connected to the protective ground. In order to achieve the thermal insulation of the under-floor forced air supply static pressure box, and maintain the basic requirements of cleanliness; secondly, the smooth surface of the steel plate can minimize the wind resistance and ensure the unobstructed air supply of the air conditioner.
2. Raised floor The machine room area adopts high-density series of antistatic raised floor, fireproof Bl grade, imported high-quality wear-resistant veneer, the floor height is 0.4m, the concentrated load is 7kN, and the dispersed bearing capacity is 35kN/m2.
3. Metal ceiling The suspended ceiling is an important part of the computer room. The ceiling panel of the computer room must be fireproof, dustproof, beautiful and easy to disassemble, so the microporous metal ceiling is widely used in the computer room. This case is a 0.7mm thick aluminum alloy microporous strip ceiling, with high mechanical strength, no dust, easy to clean, sound-absorbing, soft tones, and no glare.
4. Lightweight partitions and metal wall panels, light steel keel gypsum board filled with rock wool fire partition walls separate the different fire compartments of the machine room, and the different protection compartments use 12mm thick single piece of fireproof glass, the strength of which is ordinary tempered glass 1.5~3 times of the light weight, light weight, good light transmittance, weather resistance and high strength. The external partitions of the machine room are fireproof partitions with light steel keel double-sided gypsum board and rock wool. The bottom of the partition is made of a 400mm high solid brick wall as a waterproof dam to achieve waterproof and anti-theft isolation from the outer space of the floor. The walls and cylinders in the computer room area are decorated with color steel plates, which have the advantages of smooth surface, no glare, dustproof, fireproof, moisture-proof, antistatic, easy to clean, and abrasion resistance. During installation, all the color steel plates are connected to the steel frame as a whole, which is beneficial to the equipotential treatment in the machine room and can achieve a certain electromagnetic shielding effect. For the safety of the computer room and the safe operation of the equipment, all pipeline slots connecting the computer room to the outside world are sealed with special fire-proof materials to prevent insects and rats from entering the computer room. The entrance doors of the visible area in the computer room area are all stainless steel frameless glass free doors, and some important external entrances and exits are equipped with steel fire doors. All the external windows of the computer room are sealed with l0mm monolithic fireproof glass fixed windows to prevent dust, heat insulation and sound insulation.
5. Waterproof treatment This machine room uses aluminum-plastic pipes when installing the upper and lower water pipes of the air conditioner in the machine room. The characteristic of the aluminum-plastic pipe is that there is no joint in the whole upper and lower water pipelines during the installation process, which solves the problem of water leakage in the upper and lower water pipelines. In addition, a waterproof tray is installed under the precision air conditioner, and a water leakage alarm sensor line is installed in the waterproof tray, so that if a water leak occurs, it can also be alerted in time. At the same time, a 100mm high waterproof dam was built on the ground of the air-conditioning room and the host room, and waterproof treatment was done within the scope of the waterproof dam. Install a water leakage alarm system in the entire scope of the waterproof dam, and link it with the air conditioning water inlet solenoid valve, so that the water source can be cut off in time in case of water leakage. Since water fire is used outside the machine room, a 400mm high waterproof dam has been installed on the wall of the gas protection boundary of the machine room to block possible flooding. At the same time, all water pipes entering the machine room are insulated to prevent dew condensation caused by temperature differences. Drainage floor drains are set up in the air-conditioning room and the main engine room area to ensure that the waterproof measures of the computer room are foolproof.
(3) Computer room power distribution and lightning protection grounding system
l. Computer equipment power distribution system Computer equipment in the computer room includes computer hosts, servers, network equipment, communication equipment, etc. These equipment have high requirements for the reliability of power quality. In this project, two channels of 320kVA power supplies are drawn from different transformers in the main power distribution room of the building, and then they are connected to each other along the strong current shaft of the building to the end of the power supply room of the computer room to supply computer equipment and air-conditioning power. When the mains power fails, it is powered by diesel generators. The outputs of two 120kVA UPS and two 80kVA UPS are connected to the UPS power distribution cabinet in the central computer room. Two power distribution cabinets provide power for the computer equipment and emergency lighting in the main computer room, and one power distribution cabinet is the core network equipment and Minicomputers and storage devices provide power.
The power distribution cabinet adopts the equipment imported from France Schneider Electric Company. The server cabinet equipment is equipped with dual-circuit power supply, one use and one standby, and the minicomputer, storage equipment and network equipment are equipped with three-circuit power supply, one use and two standby. Wire troughs or protective pipes are laid to electrical equipment, and cables and equipment are connected with waterproof sockets. For single power supply equipment loads, such as network switches, two customized 16A and 32A KH-STS automatic electronic transfer switch devices are installed in the cabinet. KH-STS transforms the power from different distribution buses into a single-channel power supply, and provides power for single-power equipment. The function of KH-STS is that when one input power fails, KH-STS can switch to another input in less than 4ms to ensure uninterrupted operation of key equipment.
2. Normal lighting and emergency lighting power distribution system The power supply of the normal lighting system in the computer room is directly drawn from the mains power distribution cabinet. A tube is used for emergency lighting from the normal lighting in the computer room. The emergency lighting power is taken from the building’s fire power supply and channel Evacuation indicator lights are set at the exit. Choose 300mm wide joint-venture fluorescent grille lamps for the lighting in the computer room area to match the strip ceiling.
3. Lightning protection grounding part
(1) Two-level lightning protection measures are considered for the power supply system of wood engineering. Install first-level lightning protection products on the side of the main power input power distribution cabinet in the computer room, and install second-level lightning protection products on the side of the UPS power output power distribution cabinet for protection. Consider the installation of signal lightning protection equipment for the weak current system.
(2) The raised floor, the decorative metal-plastic board wall, and the stainless steel glass partition wall in the machine room that are prone to static electricity use wires to form a leakage net, and use the main line to lead to the AC grounding terminal in the power distribution cabinet. The branch conductors are tightly connected with the floor leg bolts, and the branch lines are made into a grid with an interval of 2.4~3.6m; the metal frame of the stainless steel glass partition wall and the metal ceiling are also connected with static leakage branch lines to leak static electricity into the ground.
(3) The AC working ground, safety protection ground, and electrostatic leakage ground of the computer room are comprehensively grounded, that is, equipotential bonding. Lay copper bars around and in the middle of the machine room to form a “Tian” shape as an equipotential bonding trunk line, which is connected to the grounding wire in the equipotential grounding box. The grounding of the equipment near the trunk line is directly connected to the copper bar, so that The equipment in the computer room works on a uniform ground potential. The lightning protection of the equipment room has installed a surge lightning protection device at the incoming cabinet of the equipment room, and no special lightning protection grounding is required.
(4) Fresh air exhaust sub-system of air-conditioning
1. Air-conditioning system The main engine room and the air-conditioning/power room use two refrigerating 53KW dedicated air-conditioning units for the computer room and the original one MRD662A dual-module dedicated air-conditioning unit for the computer room. The cooling capacity exceeds 50% of the actual demand as a backup. Under normal circumstances, the three units in the computer room are dual-purpose and one-backup, and the working module and the backup module are in automatic rotation (once a week). At the same time, a humidifier with a humidification capacity of 20kg/h is added to supplement the adjustment. Humidity of the host room. If the heat load in the computer room increases, it is convenient to add modules to achieve the purpose of expansion and reduce future investment costs. The program-controlled switch room uses two 5P air-conditioning cabinets with a 20kg/h humidifier to adjust the room’s capacity. humidity.
2. Fresh air exhaust system The fresh fresh air improves the fresh air in the machine room and keeps the positive pressure in the machine room. The independent fresh air purification room takes fresh air from the outside window of the building and is equipped with a McWeir purification fresh air unit with its own cold source system to provide fresh air for the entire computer room area. Smoke and fire dampers are installed in the fresh air system. An exhaust valve is installed in the machine room area. The valve can be operated manually or linked with the fire alarm system. Close or open the valve according to the fire alarm instructions.
(5) Access control and water leakage alarm system
l. Access control management part
The 7 doors of the computer room population and the main computer room population use card-type and password access control system for two-way card reading, the card reader with LCD display and numeric keyboard. Access to the door is authorized at different levels, and with the attendance and networking function software, the time and card number of entering the computer room are recorded.
2. Water leakage alarm part
A waterproof tray is installed under the precision air conditioner, and a water leakage alarm sensor line is installed in the waterproof tray, and is linked with the air conditioner water inlet solenoid valve. When a water leak occurs, the water leakage controller occurs in a very short time (40s) Alarm and accurately mark the alarm location in the monitoring system, so that the administrator can quickly find the source of water leakage, eliminate hidden dangers in time, and avoid losses.
Related reading:? Computer room space rental for SME data center solution?
Computer room air conditioners: foreign brands monopolize, national brands are restricted?
(6) Security monitoring system
Set up 8 color black and white conversion dome camera monitoring points in the host room, control center, program-controlled switch room, air conditioning/power room, archive room, UPS battery room and other rooms. Explosion-proof color cameras are used in the UPS battery room. Considering the expansion of the video signal in the future and the network monitoring with 30 remote branch computer rooms, two 16-channel video input encoding (server) devices are configured to support MPEG4, CIF, 2CIF, 4CIF, PAL standards, and video and audio synchronization. . It has strong IP support capabilities, supports B/S, C/S structure, supports distributed video monitoring and management, and has an Ethernet interface.
(7) KVM management part
This set of solutions adopts the management of AMX series analog matrix switching products to realize the centralized and unified management of the existing computer room servers and network equipment. There are 48 devices in the computer room (including minicomputers, 16 EMC and HP storage, 32 HP, IBM servers, CISCO routers and HUAWEI switches, etc.), of which 32 HP and IBM servers pass through 32 AMIQ-PS2 server interface modules. Use standard five-category network cable to connect to the host port of AMX5O10, and other 16 minicomputers, EMC and HP storage through 16 AMIQ-SRL serial server interface modules, use standard five-category network cable to connect to the host port of AMX5010. Eight AMX110 user workstations are connected to the user workstation port of AMX5010 through standard five-category network cables. The operating user directly connects the keyboard, mouse, and monitor to the AM5110; the AM5110 captures the server’s keyboard, mouse, and monitor signals through AMIQ for local operations. From the AMX5110 user workstation to the server, the farthest can reach 300m. At the same time, the LUN port of the AMX5010 device is connected to the network for the management of the AMX system and detailed records of user operation logs.
(8) Computer room environment and power equipment monitoring and management system
In order to meet the needs of work and improve the safety of computer room maintenance and management, this case adopted the WEB-based embedded technology “computer room intelligent integrated monitoring system”. Subsystems such as alarm system, water leakage detection system, lightning protection grounding, fresh air exhaust system, temperature and humidity, access control system, video monitoring and harmful gas monitoring realize integrated monitoring of a unified interface. It can detect the air concentration of harmful gases (such as SO, CO, CO?, aldehyde, etc.) in the computer room in real time.
The system can record and process alarm events that occur, and notify relevant staff in time through various set methods and channels (such as local voice and sound alarm, telephone, mobile phone text messages, E-mail, etc.), and a wealth of events Historical records have important reference value for the management of system equipment, so the system has special significance for the scientific management of the computer room, and is a good helper for the operation and maintenance department of the computer room. System composition: “CREATE computer room intelligent integrated monitoring system” is monitored by embedded The host uses a Web-based data acquisition machine, based on the Linux operating system, and is equipped with network cards, multi-device acquisition cards, video cards, telephone voice cards, telephone voice systems, short message sending modules and other functional components according to the needs of the system to achieve system expansion. . This user can also use the IP address to access and manage the system through authorization in the local area network and wide area network.
(9) Fire fighting and alarm system
Adopt American Notifier intelligent fire alarm system, set up smoke and temperature detectors. At the same time, the gas fire extinguishing system adopts the FM200 fully submerged gas fire extinguishing system, which uses automatic, manual and mechanical operations.
(10) Structured integrated wiring subsystem
The wiring system is the basic system for network transmission in the data center computer room. It connects voice and data communication equipment, switching equipment, and other information management systems to each other, and also connects these equipment to external communication networks. In the computer room area, there are 12 server cabinets, 10 network communication cabinets, 4 call center hosting cabinets, and 16 host and storage cabinets in the host room. The cabling principle of this machine room is the bottom line, the weak current cabling and the strong current cabling go under the floor in the machine room. Server and hosting cabinets, each cabinet uses 24 information points, a 24-port distribution frame; minicomputers and storage areas each cabinet has 4 optical fiber points, 4 information points; from network distribution frames to 4-layer structured cabling A total of 16 8-core optical fibers (using 112 cores, 16-core redundancy) are laid in the distribution boxes, and at the same time, the network distribution frame is directly connected to the network switch cabinet with the optical fiber, and the cordless wiring and copper cables are layered during implementation. Separate. (11) Computer room operation and maintenance integrated management system The computer room operation and maintenance integrated management system is the foundation and core of the establishment and realization of a distributed integrated network management unified platform for the online operation environment, network equipment, image monitoring, video conference system and server in the computer room . Through the intelligent network, all subsystems can achieve the purpose of seamless integration, data sharing, and integrated operation.
Network managers can fully grasp the recent, long-term and real-time online operating conditions, understand the utilization of networks, equipment and resources, equipment failures, network traffic bottlenecks, etc., grasp the configuration and changes of online operating equipment, and provide a basis for decision-making. The management platform has multi-node capabilities to realize the unified management of multiple machine house systems in this system. In the integrated management of KH-SITE-VIEW operation and maintenance, it has been able to achieve unified coordination and unified scheduling of computer room resources. For example, any IDC can call the resources of other IDCs and perform operation and maintenance management according to business needs, which is conducive to better use of the advantages of the entire enterprise network.
Tianjin Little Bee Computer Technology Co., Ltd.
Hotline: 400-611-0002
Fax: 022-27430664-814
QQ: 1071535543/1076899232
Address: Room 1905, Electronic Technology Center (Main Building of Yigao Digital Plaza), No. 186, Baidi Road, Tianjin
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