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Engineered specifically for long throw distances, reduced thermal stratification, and ultra-quiet operation in massive volumetric enclosures.
Addressing complex indoor climate behaviors in ultra-tall vertical architectural envelopes through advanced jet air technology.
Modern stadiums, multi-sport arenas, and Olympic indoor velodromes feature structural heights ranging from 12 to 45 meters, encompassing enormous air volumes. In conventional HVAC designs, supplying conditioned air across such vast spaces introduces severe thermal stratification—where buoyant warm air accumulates beneath the high ceiling rafters during heating modes, while cooled air creates localized cold drafts or fails to penetrate the occupant breathing zone effectively during cooling modes.
Deploying a ceiling-mounted air conditioning unit equipped with long-distance jet air supply nozzles fundamentally transforms venue aerodynamics. By producing high-velocity, high-momentum air streams with optimized induction ratios, these systems entrain substantial volumes of ambient room air, rapidly equalizing temperature gradients across entire spectator tiers without demanding intrusive secondary ductwork.
Spherical and conical jet nozzles are aerodynamically contoured to minimize outlet friction, allowing air streams to maintain velocity vectors up to 30–50 meters without breaking down into turbulent stalling eddies.
Ductless or low-duct ceiling jet units mitigate excessive deadweight loads on delicate steel trusses and cable-stayed roof assemblies, significantly lowering structural steel expenditures.
During sold-out sporting events, spectator metabolic heat, broadcast illumination, and solar radiation through skylights create rapid spikes in sensible and latent heat loads. Jet air systems respond instantly with dynamic throw-angle modulation.
Engineered with CFD-tuned sound attenuation baffles and ultra-low vibration centrifugal assemblies, these units meet stringent NC-35/NC-40 noise criteria vital for live televised acoustic clarity.
High-momentum horizontal jet discharge adheres to ceiling geometries, spreading conditioned air across broad radii before gently cascading into spectator seating zones without drafting.
Motorized adjustable nozzles shift automatically between -30° downward jetting during winter heating cycles and 0° to +15° horizontal streaming during summer cooling phases.
By inducing ambient room air at ratios up to 1:15, the unit achieves thermal equilibrium 40% faster than conventional diffusers, slashing annual chiller/boiler load consumption.
From indoor aquatic complexes to high-volume transit terminals, specialized ceiling jet conditioning units deliver exact aerodynamic micro-zonation.
Stadium environments are far from uniform. A professional multi-use sports arena hosts basketball matches on one evening, demanding strict temperature floors of 20°C with air velocity below 0.2 m/s over the court to prevent shuttlecock or ball deflection, and rock concerts on another, necessitating instantaneous heat dissipation across a standing crowd of tens of thousands.
Dezhou Yuanxin's specialized KDS(X) and KD(X) Series Ceiling Jet Air Conditioning Units provide zoned algorithmic modulation. High-throw jet air outlets can be mapped into distinct thermal segments: VIP skyboxes, lower bowl grandstands, upper tier balconies, and the central court area, each served by targeted micro-velocities and precise sensible heat removal profiles.
| Application Venue | Primary Engineering Hurdle | Jet Air Configuration | Operational Advantage |
|---|---|---|---|
| Olympic Sports Arenas (18-35m Height) | Rapid thermal stratification; draft disruption on playing field | High-induction long-throw jet diffusers with 3D motorized actuators | Preserves strictly <0.18 m/s court airflow while stabilizing bleacher comfort |
| Indoor Aquatic Centers | Chloramine gas accumulation; glass facade condensation | Perimeter-targeted downward jet curtains with treated dehumidified air | Sweeps glass envelopes to eliminate fogging while exhausting boundary pollutants |
| Mega Convention Centers & Hangars | Extremely wide open spans without interior column support | Long-distance side-wall and high-bay suspended jet supply units | Achieves 45m+ free air delivery without overhead secondary ducting arrays |
| High-Speed Rail & Airport Terminals | Continuous door opening; massive transient passenger fluxes | Combined centrifugal air curtains and high-induction ceiling jet units | Creates robust environmental isolation boundaries and rapid temperature recovery |
Maintain a constant temperature for twenty years, creating a new future.
Dezhou Yuanxin Air Conditioning Equipment Co., Ltd. was established in March 2006, covering an area of 60,000 square meters. It is a comprehensive enterprise integrating the design, production, sales, and service of a series of products such as central air conditioning, ventilation equipment, CCCF fire smoke exhaust, etc. It is a member unit of the China Refrigeration Society, the vice president unit of the Central Air Conditioning Industry Alliance, a CCCF certified enterprise for fire protection products by the Ministry of Public Security, and a China HVAC production base.
In terms of equipment level, development space, and overall strength, the company has strong development potential. It has now obtained ISO9001, ISO14001, and OHSAS18001 (quality, environment, occupational health) three system certifications, obtained the national industrial product production license for fan coil units and air curtain machines, obtained the CCCF certification for fire protection products issued by the Ministry of Public Security's Fire Product Qualified Evaluation Center, and has national inspection reports for various series of main products, safety production standardization and other series of qualifications.
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Served Global Regions
Annual Equipment Output
The company mainly operates: air conditioning purification units, fresh air and ventilation machines, cartridge fan coil units, exposed fan coil units, ultra-thin wall-mounted units, water temperature air conditioners, air curtains, warm air heaters, CCCF axial flow fire smoke exhaust fans, centrifugal fire smoke exhaust fans, tunnel fans, subway fans, side wall fans, fire dampers, smoke exhaust valves (smoke exhaust outlets), smoke exhaust fire dampers, and various fans, air outlets, mufflers, common plate flange ducts, and other varieties.
Explore our full line of stadium-grade ceiling air conditioning units, jet diffusers, air circulation devices, and high-efficiency fan coils.
