Modern MoMA: heat pump system construction technology of underground heat exchanger
Write-up by jekky
Channel Encouraged: Welcome to the “air can” very hot h2o preserving Miles>>
Keywords and phrases: Ground Source Warmth Pump Heat exchanger Construction
Key words: TU731.3 Document code: B Post ID :1000-4726-(2007) 04-0307-02
Modern MOMA challenge is situated northeast of Beijing Dongzhimen, a entire development location of 22 million!, East to west, 256m, north-south width of 52m. On the ground by the 9 towers and four podium into a U formed distribution of composition, substantial air corridor to large metal towers as a single entity. The middle of the underground garage to the tower, the podium as a single entity.
This project to the resource Warmth Pump Continual temperature and humidity air-conditioning technique, air conditioning handles an area of 150,000 m2, in summertime the temperature 26, heating in winter temperature is twenty, sizzling water throughout the year. Air conditioning Refrigeration, Hot h2o by two models Gas Boiler And 8 mesa supply heat Pump Units offer, 4 ceiling radiation warmth pump units provide program, the other four sets refreshing air supply technique, domestic scorching h2o in the summer time, portion of the warmth recovery, in aspect by insufficient Boiler Extra. Winter and transitional seasons by the gasoline boiler heating domestic scorching drinking water.
Ground resource heat pump technique with vertical heat exchanger, a whole of 635 holes drilled warmth exchangers, heat exchanger holes spacing
5m, all organized in the underground garage of the base under the Central. Pore dimension / 150mm, hole depth 100m, DN32 OD Tube specification double U-PE with substantial density polyethylene pipe, the gap close to the higher thermal conductivity fillers with backfill. The level of speak to warmth exchanger tube in the garage of the base level of the laying of the adhering to 500mm. Vertical heat transfer tube via the pool to check out the level of make contact with tube nicely (check out the wells had been arranged to 45) in the catchment, the catchment through various channels together, sooner or later entering the motor area with heat pump is related, as proven in Figure one.
one nicely and the vertical heat transfer tube warmth exchanger development
one.one Construction Process Actinobacillus area
drilling mud pools dug hole drilling rig in location verification diameter pipe hole depth, a strain test materials all set secondary pressure test under the management backfill.
one.two Warmth hole and buried vertical Major Approaches of Building
1.two.1 Positioning of Actinobacillus
Below development drawings, hole spot on the heat-off position, each and every hole is determined by stakes, and make certain the holes from a distance not less than the uplift pile
1.2m, to steer clear of the again strip, primarily based on anti-beam ground beneath.
one.2.two dug mud pool
According to a mud pool in the area to satisfy the principle of business all around the drilling rig mud pit utilised. Artificial excavation depth of one.5m, duration and width are 2m. Dig the mud pits, mud-web site modulation. As the undertaking based on the mud bottom in the garage below the liner to avoid seepage pond mud, harm to all-natural floor, have an effect on the normal groundwork of the capacity, so in the mud pool outfitted with two layers of plastic movie and a layer of striped fabric, to avoid mud leak. Construction is finished, the depth of mud pool over and above the bottom component of the use of graded sand and gravel processing, to meet the bearing ability demands. Design and style capability of the organic groundwork for the 180kPa.
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