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Clean Room Air Conditioning

Clean Operating Room Combined Air Conditioning Unit

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Features
Technical Data
Application
Certification
Part List
Reference

Features

1. High-strength structure: adopts high-strength cooling bridge aluminum alloy profile frame, beautiful appearance and high strength;

2. No deformation: The inner and outer panels and the insulation layer are foamed at one time, and the foaming density is not less than 48kg/m3, which can ensure that the unit does not deform under the pressure difference between the inside and outside of 2500Pa;

3. Anti-cold bridge: high-strength anti-cold bridge aluminum alloy structure, PA66 heat insulation material, completely solve the frame condensation problem;

4. Low air leakage rate: regardless of positive pressure or negative pressure, the air leakage rate is less than 1% under the pressure difference of 1000 Pa between the inside and outside of the machine;

5. Personalized design: improve non-standard customized designs such as annual refrigeration, low-temperature heating, low-temperature air supply, and compressor frequency conversion, and tailor-made technical solutions for clean projects.

7. Special requirements can be customized

a. Computer centralized control or remote monitoring;

b. Special working conditions, overseas power supply voltage matching;

c. It can provide a constant temperature and humidity clean unit that exceeds the temperature and humidity requirements of the normal use environment: low temperature type, high temperature type, and low humidity type;

d. All fresh air type: meet the temperature and humidity requirements of all resh air conditions, and run intelligently throughout the operation;

e. Environment-friendly refrigerant type: green environment-friendly refrigerants R410A and R134A can be used;

f. Constant temperature and humidity air-conditioning products for clean operating rooms. Steam heating and humidification are clean constant temperature and humidity air-conditioning units that can be heated and humidified by steam;

g. Heat pump heating type: clean constant temperature and humidity air conditioning products that can be heated by heat pumps

Main function section description

1. Mixed section

The air mixing section is used to mix air in different states, and to control and adjust the flow of air. Generally, it is equipped with a return air inlet and a fresh air outlet, and is equipped with a manual or electric air volume control valve.

2. Primary-efficiency filter section

The primary filter section is used at the front end of the entire unit to intercept large particles such as dust and hair in the air, which can prolong the service life of the secondary filter. According to different wind speed, material, grade, thickness and technology, the initial resistance of the initial filter section is 150Pa, and the final resistance is about 120Pa.

3. Medium-efficiency filter section

The medium-efficiency filter section is used at the back end of the primary filter section to intercept large particles such as dust and hair in the air, which can prolong the use of the post-filter. According to different wind speed, material, grade, thickness and process, the initial resistance of the initial filter section is 15-50Pa, and the final resistance is 120Pa.

4. Sub-high-efficiency/high-efficiency filter section

The sub-high-efficiency filter section is used at the back end of the medium-efficiency filter section, intercepting dust and impurities with a particle size of 0.5μm in the air, with a moderate collection efficiency, which can extend the service life of the subsequent filter.

According to the wind speed, material, grade, thickness and process of the medium-efficiency filter section, its return force is 30-60Pa, and the final resistance is about 150Pa.

The filtration efficiency of the high-efficiency filter section can reach 99%, and its final resistance is about 300Pa. It is mostly used in high-grade clean rooms, operating rooms and other places with high cleanliness requirements.

5. Coil dehumidification section

The coil dehumidification section is used to cool and dehumidify the air, and play a role in regulating the environment and environmental humidity. Generally divided into chilled water type and refrigerant direct expansion type.

6. Heating section

It is generally placed after the surface cooling section to adjust the ambient temperature. It is generally divided into three types: hot water type, steam type and electric heating type.

l Humidification section

It is generally placed after the heating section to adjust the temperature of the environment, and is generally divided into dry steam type, electrode type, high pressure micro mist type, ultrasonic wave and wet curtain.

7. Fan section

It is used to make the air in the local environment pass through the combined air conditioning unit and circulate, and do corresponding treatment according to requirements.

l Sterilization section

It uses air or oxygen as raw materials to generate ozone by high-frequency and high-voltage discharge. It is recognized as a broad-spectrum and highly effective bactericide in the world. Ozone has one more active oxygen atom than oxygen molecule. It has a very active chemical property and is a strong oxidant. It can quickly kill bacteria in the air at a certain concentration, without any toxic residue, and will not form secondary pollution.

SLZK series clean operating room combined air conditioning unit

The effect of lengthening the connecting pipe of the indoor unit on the cooling capacity (recommended the longest pipe length is 35m)

Influencing factors		Cooling capacity correction factor
Equivalent total length of connecting pipe		5m	10m	15m	25m	30m	35m	40m	45m	50m
The outdoor unit is higher than the indoor unit	0m	1	0.99	0.97	0.93	0.91	0.89	0.87	0.85	0.83
	5m	1	0.98	0.96	0.92	0.90	0.88	0.86	0.84	0.82
	10m	/	0.97	0.95	0.91	0.89	0.87	0.85	0.83	0.81
	15m	/	/	0.94	0.90	0.88	0.86	0.84	0.82	0.80
	20m	/	/	/	0.89	0.87	0.85	0.83	0.81	0.79
	25m	/	/	/	0.88	0.86	0.84	0.82	0.80	0.78
Indoor unit is higher than outdoor unit	0m	1	0.99	0.97	0.93	0.91	0.89	0.87	0.85	0.83
	5m	1	0.99	0.97	0.93	0.91	0.89	0.87	0.85	0.83
	10m	/	0.99	0.97	0.93	0.91	0.89	0.87	0.85	0.83
	15m	/	/	0.97	0.93	0.91	0.89	0.87	0.85	0.83
	20m	/	/	/	0.93	0.91	0.89	0.87	0.85	0.83
	25m	/	/	/	0.93	0.91	0.89	0.87	0.85	0.83

Table of equivalent lengths of elbows and traps

Connecting pipe outer diameter mm	9.52	12.7	15.88	19.05	28.6
Elbow m	0.2	0.25	0.3	0.35	0.5
Oil trap m	1.4	1.8	2	2.4	3.7

Note: the equivalent pipe length refers to the sum of the length of the straight pipe section of the pipeline plus the equivalent length of the elbow and the trap

Electrical parameter table of outdoor unit of direct expansion combined air handling unit

Model

SRF8W

SRF12W

SRF16W

SRF20W

SR22W

SR28W

SR33W

SR36W

SR42W

SR48W

SR50W

SR60W

SR66W

SR84W

SR100W

SR210W

SR280W

Power supply

3Ph380 V 50Hz

Power cable

3*2.5+1+2.5

3*4+2.5+4

3*6+2.5+6

3*10+2.5+10

3*16+4+16

3*50+6+50

3*70+10+70

Note:
1. The power cord of the unit must be a copper core cable, and the working temperature cannot be greater than its specified value. The recommended wire diameter is to use Google when the operating environment is 40 degrees Celsius.
2. If the length of the power cord is greater than 15 meters, please increase the cross section of the power cord appropriately to avoid accidents caused by overload;
3. The recommended power cord diameter does not consider the auxiliary heater. If the unit is equipped with an auxiliary electric heater, it is necessary to select a copper core cable with a wiring diameter that meets the national standard according to the auxiliary electric heater power to avoid accidents. At the same time, when the actual installation conditions on site are changed, please reduce the capacity according to the specifications of the power cord and circuit breaker provided by the manufacturer.

The functions of the combined air conditioning unit of the clean operating room are flexibly combined according to the working conditions and technical design requirements, and can meet the needs of air purification and temperature and humidity adjustment systems in all walks of life. This product is widely used in medical treatment, medicine, electronic instruments, precision machinery, and products. The air-conditioning purification projects of enterprises such as, light industry and chemical industry are also suitable for the comfortable centralized air-conditioning projects of large and medium-sized public buildings such as scientific research buildings, hospitals, laboratories, training rooms, exhibition halls, shopping malls, and theaters.

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