OEM Bitzer Compressor Lab Chiller

OEM Bitzer Compressor Lab Chiller With -35C~ 140C Temp Controlled

Technical Information

1, technical design requirements:

1. high temperature medium tank temperature range: 50 °C to 140 °C; volume: 240L; heating period ≤ 90 minutes, heating rate 1-2 °C / min;

2. low temperature medium tank temperature range: -40 °C to 30 °C; volume: 240L; cooling cycle ≤ 90 minutes, cooling rate 1-2 °C / min;

3. temperature control accuracy: within ± 2 °C, the use of low temperature tank temperature -35 °C, high temperature tank temperature 140 °C.

4. medium groove tank material: 304 stainless steel plate welding, wall thickness: 1.5mm; low temperature medium tank insulation material: rubber fire insulation cotton; high temperature medium tank insulation material: asbestos insulation board;

5. the largest specimen limit: specimen: aluminum specimen; total mass of the specimen: 10Kg, the largest internal volume 10L;

6. There must be a balance tube between the two tanks, high and low liquid level alarm, liquid level sensor, liquid inlet, liquid level gauge, temperature sensor and temperature ultra-high temperature alarm;

7. The high and low temperature tank cover needs to be controlled by a cylinder, and the control valve is controlled by an O-valve.

2, temperature control system

1. The low-temperature tank circulation compressor is a semi-hermetic screw compressor, which adopts the German brand Bitzer, and the pre-cooling compressor for pipeline circulation is a fully-closed scroll compressor, which adopts the American brand Copeland.

2. The temperature control accuracy of the unit is ±2°C and the temperature uniformity in the media box is ≤2°C.

3. The cooling system is designed with multiple protection functions. The unit's control panel can determine the location of the fault.

4. The protection functions of the cold and hot integrated unit include high and low pressure protection; safety valve; overheat protection; overload protection; reverse phase; phase loss; water flow protection, etc.

3, the media circulation system

1. High-low temperature medium tank is equal volume 240L, effective volume is 200L, welding process is full-finished welding, supporting liquid level observation window, lowest liquid discharge port, artificial fluid inlet, overflow port, tight insulation, beautiful appearance, Durable and meet user requirements.

2. The medium line valve is made of 304 stainless steel. The flange connection is convenient for maintenance.

3. with its own circulatory system to ensure the temperature accuracy range of the medium;

OEM Bitzer Compressor Lab Chiller Low Temp Section Specifications:

Control temperature		℃		-10~-35±2
Cooling tower water in/out temperature		℃		32/37
Nominal cooling capacity（TE=-40℃）		Kw		27.7
		Kcal/h		23822
Compressor / Motor	Brand			Germany——Bitzer
	Type			Hermetic   Piston
	Protection			PTC protection,   phase protection, overload redundancy
	Quantity			1
	Input power	Kw		31
	Rated speed/voltage/frequency			2950rpm/380V/50Hz
	Start Way			Star-triangular step-down startup
Oil separator	Structural   type			External type
	Resolution			99.9%
	Filter   material			Stainless steel wire mesh
Evaporator	Type			Stainless Steel Plate Heat exchange
	tube   material			304stainless   steel plate
	Tube   material			Stainless steel
	Chilled   water flow	m3/h		22
	Water pipe   dia	mm		DN 80
	Freezing   water pressure	KPa		30-80
	Temperature   control			Return liquid temperature sensor
	Medium			Antifreeze
Condenser	type			Stainless steel plate
	Heat   exchange tube material			304stainless   steel plate
	Tube   material			Stainless steel
	Cooling   water flow	m3/h		26.8
	Water pipe   dia	mm		DN 80
	Cooling water   pressure	Kpa		40-100
Low temperature medium tank	material			304stainless   steel
	Insulation   form			Advanced waterproof fireproof rubber insulation
	Tank volume		L	240
Constant temperature electric   heating	KW			12*2
Thermostatic Control Type	Type			Solenoid Valve Reducing Temperature
Chilled water pumps（Inner cycle）	Type			Ultra-quiet low temperature pipeline pump
	Material			304stainless   steel
	Power		Kw	7.5
	Head		M	40
Drying filter	Structure   type			Horizontal type
	Material			Carbon Steel
	Filter   Alumina			Molecular Sieve
Electrical Control	Controller			Full   Intelligent Temperature Control System
	Pump Control			Intelligent Interlock Control (optional)
Refrigerant	control   method			Expansion Valve
	Type			R404A
	Fill Charge		KG	24
Lubricant	type			Compressor built-in
	type			high purity lubricant
Other Specs	Discharge   pressure		PA	12-16
	Discharge   temp		℃	70-90
	Working   environment temperature		℃	≤40
	Max Running   Current		A	52
	Dimension		mm	drawing

OEM Bitzer Compressor Lab Chiller MediumTemp Section Specifications:

Control temperature		℃				30~-10
Cooling water in/out temp		℃				32/37
Nominal cooling capacity（TE=-10℃）		Kw				16
		Kcal/h				13760
Compressor / Motor	Brand					America—Copeland
	Type					Scroll
	Quantity					1
	Input Power	Kw				7.4
	Rated   speed/voltage/frequency					2950rpm/380V/50Hz
	Start Way					Directly
Evaporator	Type					Stainless Steel Plate Heat exchange
	Heat   exchange tube material					304 stainless steel plate
	Tube   material					Stainless steel
	Water flow	m3/h				5.5
	Pipe Size	mm				DN 40
	Pressure	KPa				30-80
	Temp Control					Return liquid temperature sensor
	Medium					Antifreeze
Condenser	Type					Stainless steel plate Heat exchange
	Heat   exchange tube					304 stainless steel plate
	Tube   material					Stainless steel
	Water flow		m3/h			6.7
	Water pipe		mm			DN 40
	pressure		KPa			30-80
	medium					City water
Medium temperature tank	Material					304 Stainless   steel
	Insulation   form					B1 Rubber plastic insulation cotton
	Tank Volume				L	100
Pre-cooling PHE	Cooling   Capacity				KW	30
Water Pump （inner   circulating）	Type					Ultra-quiet low temperature pipeline pump
	Material					304stainless   steel
	Power				Kw	0.75
	Head				M	20
Drying filter	Structure   type					Horizontal
	Material					Carbon Steel
	Filter   Alumina					Molecular Sieve
Electrical Control	Controller					Full Intelligent Temperature Control System
	Operation   Panel					Digital Instrument
Refrigerant	Model					R404A
	Control Way					Expansion Valve
	Fill Charge			KG		6
Other Specs	Discharge   pressure			PA		15-19
	Discharge   Temp			℃		70-90
	Working ambient   temp			℃		≤40
	Running   Current			A		15
	Dimension			mm		See drawing

OEM Bitzer Compressor Lab Chiller HighTemp Section Specifications:

Temp Control Range		℃	40 to140
Heating Capacity		Kw	36
		Kcal/h	30960
Heating   Capacity	Type		Resistance Heaters
	Quantity		3groups
	Single power	Kw	12
	Surface heat   load（W/c㎡）		≤5
	Control   method		PID
	Temperature   control accuracy（℃）		±1
	Control   Actuators		Solid State Relays
High   Temperature Medium Tank	Cabinet Material		304Stainless   Steel
	Insulation   Material		Asbestos Insulation Board
	Volume		240L
Cooling   plate exchange	Cooling capacity	KW	36
Hot water   pump	power	Kw	2.2
	Water flow	L/M	60

OEM Bitzer Compressor Lab Chiller Pictures:

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