Turbulence type rotary lower air supply system

Abstract

The invention provides a turbulence type rotary lower air supply system. The system comprises a ventilation floor device, a data acquisition device, a signal transmission device, an air pressure balance plate and an upper computer control device; the ventilation floor device is used for supplying air into a room and conveying lower air supply air flow into the room in a turbulence type rotating mode, the ventilation floor device comprises a floor body and an air flow guide blade plate, the floor body and the ground form a frame structure, and at least one ventilation plate is arranged on the floor body; the data acquisition device is used for acquiring parameters of the lower air supply air flow and transmitting the acquired data to the signal transmission device, and the signal transmission device transmits converted digital signals to the upper computer control device; and the upper computer control device performs system regulation and control on a lower air supply air conditioner.The turbulence type rotary lower air supply system can meet the heat dissipation requirement of IT equipment in an existing machine room, the surface temperature of each IT equipment cabinet in the machine room can be kept basically constant, and meanwhile a machine room air conditioning system can greatly save energy.

Description

technical field [0001] The invention relates to the technical field of indoor temperature control, in particular to a turbulent rotating down air supply system for a data center computer room. Background technique [0002] Common air-conditioning air supply methods are divided into three types: side air supply, upward air supply and downward air supply. The same points of the three air supply methods are: the cold, heat source and air handling equipment are basically the same. The difference lies in: 1) The side air supply and the upward air supply enter the work area after passing through a certain range during the air supply; while the downward air supply directly enters the work area from the floor or the lower space; 2) the downward air supply The air supply temperature of the air supply during cooling is more effective than the air supply temperature of the side air supply and the upper air supply, which is more energy-saving; 3) Once the system is installed, the upper...

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Problems solved by technology

[0009] According to the airflow characteristic stated by Bernoulli's principle of fluid mechanics, "the pressure is small when the wind speed is high", it is restricted by this characteristic, such as figure 1 As shown, due to the high pressure near the air outlet of the down-flow air conditioner in the machine room, the air output of the ventilation floor close to the down-flow air conditioner is small, and because the ventilation floor close to the down-flow air conditioner unit has already delivered A certain amount of air volume, so that the air supply volume of the ventilated floor far away from the down-supply air-conditioning unit will appear to be reduced, and at the end of the floor, because of the characteristics of Bernoulli's principle of "low wind speed and high pressure", it will cause the under-floor The increase of air supply pressure increases the air delivery volume of the ventilated floor in this area; and because the electronic equipment cabinets in the existing computer room are usually installed near the air conditioner in the computer room, the air conditioner will affect the air supply volume of part of the ventilated floor. Reduced air volume for ventilated floors

[0010] In addition, most of the existing under-floor air-supply room-type air conditioners are placed around the machine room. Due to the limitation of the Bernoulli principle of air flow, the under-floor air-supply air flow rate is high and the air-supply air-supply on the floor with low air pressure and flow velocity can deliver The wind pressure increases, and finally the air-conditioning air leakage rate of the computer room with underfloor air supply exceeds 50%, such as figure 2 As shown, the mixed flow of hot and cold air prevents the air conditioner from being directly and effectively transported to the IT cabinet; the cooling effect of the computer room air conditioner is poor, resulting in the actual computer room air conditioning system being over-provisioned and running with high energy consumption

[0011] In summary, due to the large amount of leakage of more than 50% of the cold air output of the ventilation floor air supply device in the prior art, it cannot meet the increasing heat dissipation requirements of the cabinet load. It will change at any time. When the airflow blown out by the air-conditioning air supply device under the ventilation panel through the air supply port maintains laminar air supply, which cannot meet the cooling demand of the heat generated by the existing equipment, the surface temperature of the equipment cabinet will inevitably fluctuate accordingly. , the temperature of the cabinets is uneven, and some cabinets cause local overheating of the computer room and unnecessary overcooling, resulting in over-provisioning of the computer room air conditioner, overloaded operation, excessive cooling energy consumption, etc.

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