详情
HS Code:*********0
Medical equipment cooling BUSCH air-cooled screw chiller
Model:BBA***0SH
Cooling capacity:**0 kW / *2.5 RT
Heating capacity:**5 kW / *2.4 RT
Whole unit power input:*1.1 kW
Whole unit current power:**9.4A
Compressor type:**6 asymmetric semi enclosed twin screw
compressor
Start-up：Y-Star delta starting
Energy regulation：***5%**0%**5%***0% or Stepless regulation
Evaporator water flow：*9.9m3/h
Evaporator tube diameter:DN **0
Fan quantity:6 sets
Single fan power:1.*0 kW
Condenser air volume:*****0 m3/h
Refrigerant charge:*5.0 kg
Size:***0mm****0mm****0mm
Weight:***0 kg
Power standard:**0V/**5V/**0V/*3P**0Hz/*0Hz
Refrigerant:R*2/R**7C/R**4a
Non-standard product and design:Acceptable
Screw air-cooled chiller(or heat pump)
Screw air-cooled chiller(heater) is the unit of which applicable
cooling(heating) medium is air or water in summer(winter), and its
secondary refrigerant is water. When connected with fan coil units,
air conditioning box, air processor together, it can be used as
half of concentration and centralized the central air conditioning
system; Single cold- screw air-cooled chillers are widely used in
various fields of refrigeration industry.
1.Comparing with water chiller
Compared with water chiller, Screw air-cooled chiller can get rid
of huge cooling water system and a special air conditioning room.
It also can be set up on the roof and outside. Installation and
maintenance are very simple and convenient.
2.Precise stable water temperature
As used for industrial cooling, Low temperature water that produced
by air-cooled chiller could send directly to the equipment and
containers, which need to keep freezing. In order to control
precise stable water temperature, the water comes out of the
chiller send to the Buffer pool firstly,then entrance the equipment
or containers which need cooling.
3.Achieve annual refrigerate operation
In the industrial cooling use aspect, screw air-cooled chiller can
be used in above temperature **0°C and achieve annual refrigerate
operation in order to meet the needs of cooling industrial in the
winter refrigeration, and this can be used in different kinds of
low temperature cooling. After adding appropriate antifreeze in the
frozen water side, it can achieve the range of 0~**5°C in order to
adapt to the different industrial cooling requirements. Usually we
use Ethylene glycol ,calcium chloride, and sodium chloride as
antifreeze solvent. In the application, customers are suggested set
different antifreeze solution`s concentrations according to the
water temperature.
4.Y-Star triangle depressurization start mode
Screw air-ccoled(or heat pump)chillers use Y-Star triangle
depressurization start mode. The starting electric current is only
about 1.5 to 2 times as run-time current which greatly reducing the
impact to the grid
5.External air cooled oil cooling device
Screw air-cooled chiller(or heat) Cited the high exhaust gas
temperature rise caused by lubricating oil overheating both in
refrigeration environmental temperature is too high, heating
environment temperature too low or Low-temperature industrial
cooling water temperature is too low. In order to ensure good
lubricating oil lubrication, we use External air cooled oil cooling
device to cool down the temperature, Reduce the consumption of
cooling capacity and Stable refrigeration system.
6.Perfect protection function
Screw water-cooled chiller have perfect protection function, such
as power wrong phase lack protection , system high-voltage
protection, system low voltage protection, double antifreeze
protection, compressor overload protection, insufficient frozen
water cooling protection, prevent frequent start protection,
compressor built-in exhaust temperature coil overheat temperature
protection and etc. These protection reduces many losses caused by
all kinds of accidents .
7.Well separated frozen oil and refrigerants
In order to more fully separate the frozen oil and refrigerants,
external centrifugal efficient oil separator of low temperature
cold water chiller can greatly reduce stranded frozen oil in the
evaporator due to the low temperature. This ensure the compressor
lubrication system security and also improve the heat transfer
effectiveness of the evaporator.
8.External liquid spray technology
To further ensure compressor motor will not be overheated. Screw
air-cooled(or heatpump)chiller apply external liquid spray
technology. With low temperature cooling media directly on the
motor, it ensures the long-term and stable operation of the
compressors.
9.Automatic capacity adjustment
According to the air conditioning\' demand, screw air-cooled
chiller can automatically adjust load capacity. The standard
chiller capacity adjustment is implemented by segmented or
non-polar uninstalling method. One single machine can realize four
different compressor capacity level, which are **0%, *5%, *0% and
*5%. *5% level is used to start compressors.
*0.Environmental Friendly
In order to better protect the atmosphere, it can produce green
environmental protection cooling medium refrigeration and air
conditioning equipment not only in adopts HFC**7C and HFC**4a,but
also in HCFC*2.
*1.Balanced running performance
Many of the chiller with compression, microcomputer automatic
memory will be per compressor operation time, start the next time
it will be activated running less time compressor. Similar in the
discharge of the need, but also will be preferential the operation
longer time to uninstall chiller, in order to achieve the balance
of each compressor operation, extend the service life of the
machine.
*2.Remote control
Each chiller is occupied with remote control function. The computer
controller is equipped with RS**5 standard communication
interfaces, open communication protocol. This will allow all kinds
of building monitoring system connected and remote monitoring. The
system supports building automation BACne agreement, TPC/IP,
convenient connection with the system; The remote control unit can
be directly connected through RS**2 and RS**5, RS**2 universal
serial interface and through the BACnet converter pulled into a BMS
intelligent building control system.
*3.Defrost
Accurate design aluminum pieces from the maximum is to reduce
frosting probability. Analysis and judgment can be achieved by
fully combining of time, temperature and pressure for the
comprehensive. This achieves the on-demand defrosting, reach
perfect level of defrosting, and extend the defrosting
interval.
*4.Waste heat & secondary condensation
Without additional consumption of electricity and fuel , the waste
heat generated from the chillers can produce domestic hot water.
These results can be achieved in almost zero cost, zero pollution,
no more other additional devices. The only thing to do is just to
directly access water pipeline to access hot water
Due to the secondary condensing progress, it can appreciably reduce
condensate temperature and pressure, and it can also raise the
efficiency of refrigeration to some extent.
*5.Heat recovery type chiller
Due to the increasingly energy shortage, waste heat recycling will
have a long-term economic value. Basing on this fact, our
enterprise developed a heat recycling chiller system, which can
fully recycle the condensing waste heat originally released into
the environment, which can be used in hotels , dormitories ,
toiletries and other occasions; If heat recycling technical
parameters are needed, please contact our technical department to
obtain.
*6.Compressor & other major refrigeration components
Twin-screw compressor applies the world\'s most advanced 4th
generation asymmetric patent tooth rotor machining by the British
HOLROYD rotor and then grinding precision by the German
KLINGELNBERG precision rotor grinding machine. This greatly reduces
leakage and cooling loss. The usage of advanced three-stage oil
network makes the oil filter ratio up to *9.7%, which greatly
ensure machine oil return to the compressor , the wide range of
built-in protection can ensure the compressor safe operation
including small vibration , low noise and high efficiency.
Except compressor refrigeration, other major components are
imported quality products, such as the expansion valve , solenoid
valve , filter drier , etc, which are all European and American
quality products , have reliable performance and precise control
.
*7.Touch screen computer interface
The chiller is controlled by micro-computerized controller, and all
are equipped with Germany Siemens PLC imported controller. The
accuracy and intelligentize truly achieve perfect control of whole
machine in order to ensure safe operation of the unit and the
purpose of effective energy conservation. The machine is equipped
with touch-screen interface,which is simple and
customer-friendly.
*8.Test center
The enterprise has a well-operated testing center , each
air-conditioning unit have been injected refrigerant and
refrigerant oil before leaving factory. After undergoing a rigorous
simulation of the standard conditions and maximum operating mode
detection, expansion valve can be adjusted to the best
condition.
Notes: (Normal temperature) default conditions
1．Parameter of the refrigeration nominal conditions : chilled water
inlet / outlet water temperature is *2℃/ 7 ℃; Ambient temperature
is *5℃ . The nominal operating conditions of the heating parameters
: hot water inlet temperature is *0℃, water temperature
outlet is *5 ℃ , environmental dry bulb temperature is 7℃, wet bulb
temperature is 6℃;
2. Temperature conditions: cooling water temperature range is 5 ℃ ~
*5 ℃, water heating temperature range is *5 ℃ ~ *0 ℃, the
environment temperature range is:**0 ℃ ~ *3 ℃
3. The water side of the evaporator pressure is 1.0Mpa, the test
pressure is 1.6 Mpa
4. Nominal conditions evaporation device water side of the dirt
coefficient is 0.**8 m ? ° C / kW
5. In addition to the above specifications and requirements , the
company can provide non-standard products according to customer
requirements
