burberry canvas District cooling system in the pra

52sale5126am

448
5
cooling tower BAC 331132AKV

1

3

558
we can see from the above, the use of Western architectural features for commercial buildings, many years of research and analysis show that commercial air conditioning system has the following characteristics: (1) air conditioning system is mainly run in the daytime, at night only a small part of the system operation both during the day and use the factor; (2) large air conditioning load, and air conditioning hourly load and peak electricity supply agreement; (3) the overall load factor is low. This scale of land development and construction operation, such air conditioning load and system operating characteristics,[link widoczny dla zalogowanych], necessitating the construction of an ice storage developers in the region, district cooling system, the introduction of district cooling system operators to develop construction and operation of the ice storage for the cold source of the cooling system, air conditioning for the two developers with cold water, two self-built cold site developers can save the investment,[link widoczny dla zalogowanych], save the cold station area available for use or rental, to attract two developers. Ice storage using the peak-peak electricity price difference to reduce operating costs, reduce the maximum capacity of electricity costs; regional cooling improved water supply reliability and validity, is conducive to environmental protection; the same time scale and low-temperature stable supply of chilled water air conditioning self-built with two developers to ensure the competitiveness of the cold station. Construction of Zhongguancun West using external melt ice storage type district cooling technology for underground space and ground floor area to provide air conditioning chilled water. A modular way of cooling station construction, according to various stages of development and the construction of cold water demand, favorable financing arrangements, but also can accurately set the maximum load refrigeration station near the building, plans to build Western-style two external melt ice storage refrigeration station. Two DN500 main supply pipe attached to the back to ease of maintenance and management of underground pipeline corridor, the main supply pipe is looped back to the network, the two cooling stations the network connecting the ring, each chiller plant by loop pipe network connected to each other, such a system is able to achieve maximum effectiveness and provide 24 hours a day 360 days 1.1 ℃ air conditioning chilled water reliability. Commercial area and underground space ground station and the building of the heat pipe network connecting ring, 13.3 ℃ in the air return (secondary water) through a plate heat exchanger with water 1.1 ℃ / 12.2 ℃ for heat exchange, secondary water supply temperature is 2.2 ℃, stable and reliable regional low-temperature cooling technology, with protection of the local environment, save energy, save the initial investment, lower operating costs and balance the power load and other unique advantages. A cold site location and layout of circular pipe network shown in Figure 1.
flow of 829 m3 / h
8
flow of 654 m3 / h

head 38.1 m water column
flow of 1410 m3 / h
1
560
8
cooling capacity of 2000 tons of cold (7034.4KW)
District cooling system in the practical application of Zhongguancun West

Abstract: Beijing Zhongguancun are introduced to ice storage cooling system for the cold source region cooling station in the first phase of the process design, major equipment selection, construction, technical characteristics,[link widoczny dla zalogowanych], design parameters, and outside the pipe network design, the requirements of ice and water using ethylene glycol solution. Described in the Design of the designers used advanced technology to make the system operating costs for the most savings for their efforts.

1 Project Overview

glycol pump

9
TSC-306S/918S
4
input power 56KW
1 4
ITT Goulds 3410L 10x12-12

head 50.3 m water column

2 a refrigeration station construction equipment and process design the main
2
3410L 10x12-12

3
3410L 10x12-12
input power 112KW

Leng conditions: cooling capacity 1634 tons of cold (5753KW) input power 1379KW 2950RPM

Beijing Zhongguancun Beijing West Zhongguancun, Haidian District, Beijing, Shanghai Western set in the town, the Zhongguancun Science Park the core area, will be built into the development of the Zhongguancun high-tech industry is characterized by high-tech service business center area. Zhongguancun West construction to land development,[link widoczny dla zalogowanych], pre-project planning and design, resettlement, and all municipal facilities and local facilities (seven and one flat) and underground space development, the land development of the main - Beijing Science Park Development Co., Ltd. completed, according to market demand and the municipal government's industrial policy, land investment. Chinese papers League finishing.

TSC-340S ice coil
30

input power 1289KW
speed 1450 r / min

number of major equipment
ice reinforced concrete pool
flow of 1327 m3 / h
4260 3

speed 1450 r / min

total power

224
1.195 MWH

number

a refrigeration station Table 1
input power 186KW
4

total area of 51.44 hectares Zhongguancun West, planning the ground floor area of 100 square meters, total construction area of ground about 50 million square meters. Western site of the main features to financial information, technology trade, administration, science and technology-based exhibition, and with a commercial, hotel, cultural, sports, entertainment, large public green spaces and other ancillary public services.

water-cooled centrifugal Chiller (base load host) YK-VHTDJ45DHES
flow 716 m3 / h
7
main chilled water main circulating pump
6
speed 1450 r / min

KW
device name and model main parameters

head 18.3 m water column
1.076MWH

input power 56KW

42 (L) x13.4 (B) x4.5 (H) m

chilled water pumps
600
ITT Goulds

60
cooling water circulation pump

input power 150KW

Figure 1
head 33.5 m water column

ITT Goulds
5
Keywords: ice storage external melt ice-duplex dual-evaporator conditions

duplex status of water-cooled screw chillers FRICK RWB-856E

2.1 progress of the project under the West, first to a cooling station construction project . Station design and construction of cold by the Beijing Ai District Cooling Technology Development Co. Must bear, designed by Mr. Tom.Brady. Table 1 the main equipment of cold station, equipment performance parameters and process design are as follows:

ITT Goulds 3410L 12x14-12

7034.4

cold water conditions: cooling capacity of 2130 tons of cold (7500KW) input power 1420KW 2950RPM

speed 1450 r / min
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