Summer "concentrated cold"?Jinan a "steam"

In the winter and snowy winter, concentrated heating makes people feel "warm like spring". In the hot summer, if you can achieve concentrated concentrated supply like concentrated heating, the "Happiness Index" of Sanfu Tian may be greatly improved. In fact, the Jinan CBD area has begun to concentrate on the trial operation of the cooling mode, and now it has covered the scope of about 210,000 square meters of public construction users such as shopping malls and office buildings in the area. Some hotel staff said that without air conditioning in the room, the room temperature can be kept at about 26 ° C, the effect is very good. It is worth mentioning that in summer, cooling and winter heating shared a tube network system, and switched the "heating" or "refrigeration" mode through the role conversion of "heat exchange stations" and "cold station". In the future, the concentrated supply of cooling business is still expected to enter the home of residential users.

It is expected to be put into production of 500,000 square meters for a cold area next year

On Longhu Tian Street on West Road, the room, the room is cool and comfortable. The air outlet from the top of the mall can be adjusted through the control panel on the wall. It seems that the "flat and unsatisfactory" cooling system is actually "hidden mysteries". The air -conditioning in this shopping mall does not come from air conditioning, but thanks to "concentrated cold". The "cold source" it uses is a southern energy center a few kilometers away.

The South Energy Center was built by Jinan Energy Investment Holding Group, which belongs to Jinan Energy Group, and provides centralized heating and cooling services for the entire Jinan CBD area. General Manager Cui Yan introduced that the energy center has now covered about 210,000 square meters of cold supply area. The main service targets are concentrated in public construction users such as office buildings, office buildings, and commercial complexes in the CBD area. With the acceleration of the construction of the entire Jinan Central Business District, more buildings including "mountains, spring, lakes, rivers, and cities" will be put into use after next summer. All CBD -cooling projects have a cold supply area of ​​1.1 million square meters. It is expected that 500,000 square meters of cold area will begin to start production next year. In addition to the southern energy center that has been put into use, in the future, it will also be launched in the northern energy center according to the CBD cooling demand.

"These two energy centers are mainly responsible for the summer refrigeration mission of 2.2 million square meters of public construction users in the entire CBD area. The heating area of ​​the entire area in winter is about 7 million square meters. Starting from the review stage of the entire CBD building construction, do a good job of the integration of the entire area and the next step of the municipal pipe network. "Cui Yan introduced.

"Water cooling" is cold, and the same set of pipe networks are used as heating

According to Cui Yan, the concentrated supply of cold supply and heating of the southern energy center is the same tube network system, which is the largest in the areas of hot and cold in northern China. "After our agency estimates that the entire project has reached 2.2 million square meters, it can reduce the carbon dioxide emissions of about 120,000 tons each year, which is equivalent to the carbon emissions generated by 10,000 households in summer." Cui Yan said Essence Specifically, for the use of fossil fuel crew, 100 degrees of electricity is used, which is equivalent to discharging about 78.5 kg of carbon dioxide. For centralized cooling projects, on the one hand, the installed capacity of the refrigeration equipment concentrated construction is much lower than the sum of the user's self -built refrigeration equipment, and on the other hand, the efficiency of high -efficiency energy -saving units adopted by cooling supply is higher, thereby achieving carbon dioxide emission reduction.

The same tube network system can undoubtedly save duplicate construction costs and space resources. So, how is the switching of "cooling" and "heating" models realized? In fact, the medium in the pipe network is always water, cooling or heating depends on the height of the water temperature. When heating in winter, the residual heat of the Zhangqiu Power Plant transports the heat water to the CBD area through the long transmission network, and then through the thermal exchange station to enter the end system of each user, such as heating tablets, floor heating, etc. When the cold concentration in summer, the heat exchange station in winter becomes a cold station. After the transmission and distribution network is switched to the "cold source" of the southern energy center, the freezing water is transported into the cold station. After the cold exchange, 7-9 will be 7-9 after the cold exchange The frozen water around the degree Celsius is transported to the end wind tray system of each public building user.

At present, Jinan Energy Investment Group is upgrading to the ice storage system at the energy center of the south. After completion, it can use the low -temperature cooling source at night to further reduce operating costs, which is also in line with the development strategy of peak power and peak -cutting valley. "In the next step, we will promote the advancement of crossing the Tenth Road, North Vietnam Industrial South Road, West Yanmao Ling Shanxi District, and the east to Jinan High -tech Comprehensive Business District. Expand the group company's promotion of concentrated supply of cold supply. "Cui Yan said.

Residential users are expected to use concentrated supply in the future

It is understood that since the 1980s, some foreign commercial buildings and university campuses have successively used regional cooling methods, such as the Radfangs CBD in France. At present, commercial areas such as Qianhai, Guangzhou University Town, Beijing Zhongguancun have also begun to use centralized cooling models.

For public construction users such as office buildings, hotels, and commercial complexes, concentrated supply of cooling compared with its own construction of air -conditioning equipment, not only reduces the land house occupation, cooling tower roof occupation, but also reduces the electricity increasing electricity for construction for air -conditioning refrigeration. And no air -conditioning outside the board, etc. According to the actual data analysis, for super high -rise buildings above 200 meters, the cost of concentrated supply of cold supply and use is lower than the cost of the separate air -conditioning units of the building, which is equivalent to the construction and use costs of general commercial buildings. According to reports, currently the concentrated supply of cold -end -end -end -of -end cold device is generally a fan coil device, and the fan tray has its own condensing water collection system to discharge condensate water out of the building to avoid affecting the user's experience. At the same time, this kind of device comes with a temperature control panel, and users can independently adjust the indoor temperature according to their own needs. If the interior of the user is a radiator or ground heating, it is not suitable for the use of cold -cold devices.

Can concentration of cooling the future cover residential users? It is understood that Jinan Energy Investment Group will also promote the concentrated supply of cold supply for high -end residential users. In terms of charges, considering the cold comfort and conservation of residents, the charging method will be charged according to the area charging or the meter meter metering. Provide residents with cold services in summer.

New Yellow River Reporter: Editor Lu Zhen: Lu Bing

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