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Water-cooled Screw Type Explosion-proof Chiller

The explosion-proof unit is a special air-conditioning equipment, and its components are manufactured in strict accordance with the relevant requirements of the national explosion-proof standard GB3836 and have obtained an explosion-proof certificate. Suitable for use in flammable and explosive special dangerous places and general places. It is widely used in petroleum, chemical, textile, printing, medicine, food and many other industries.

According to the characteristics of the project, the explosion-proof type of Water cooled Screw type Chiller can be an explosion-proof type or a positive pressure type. Ex d IIB T4, Ex d IIC T4 can be selected for the explosion-proof grade, and other explosion-proof units can be customized according to user requirements.

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Product Detail

Water-cooled Screw Type Explosion-proof Chiller

Main components of Explosion-proof Water Cooled Screw Chiller

1. Explosion-proof compressor
Explosion-proof compressors are produced in accordance with the standard family of GB3836, have the explosion proof symbol of Exdib mb IIBT4Gb or Ex d e mb II BT4Gb, have passed inspections of quality supervision and inspection authorities, and have obtained explosion proof certificates. The main application of Water-cooled Explosion-proof Chiller is in Zones 1 and 2 in the petroleum, chemical industry, metallurgy, pharmaceutical and national defense industries, where explosive gas mixture exists in the air.

2. Explosion-proof electrical cabinet
Explosion proof mark: Ex d ib II BT4 Gb
The electrical cabinets come in flameproof and pressurized types; with their housing made of steel plates welded together, they are strong and durable; and they also have an NWN entry system.
Flameproof type: enough attention is given to ensure that even when explosive mixture invades into the cabinet and explodes due to some reason, it will not cause explosion of the explosive mixture outside the cabinet.

Pressurized type: this type of ventilated explosion proof electrical cabinet achieves explosion prevention by isolating ignition source with proper medium.

Explosion-proof Screw Chiller

3. Explosion-proof fan
They are produced in accordance with the standard family of GB3836, have the explosion proof symbol of Exd II CT4Gb, have passed inspections of quality supervision and inspection authorities, and have obtained explosion proof certificates.

Standard configuration
Compressor	Explosion-proof screw compressor
Evaporator	Self-produced high-efficiency evaporator
Condenser	Self-produced high-efficiency condenser
Control electric box	Explosion-proof control electric box
Throttling device	Thermal / electronic expansion valve
Cable	Explosion-proof cable
Insulation Materials	Anti-corrosion, waterproof, mesh insulation layer
Package	High-strength plastic sheet
Water outlet connection method	Flange

Technical parameter

Model	Nominal cooling capacity		Input power	Energy control	Condenser				Evaporator
Model	KW	USRT	Input power	Energy control	Diameter of inlet & outlet pipes inch	Water flow rate m³/h	Maximum pressure on water side	Water pressure drop	Diameter of inlet & outlet pipes inch	Water flow rate m³/h	Maximum pressure on water side	Water pressure drop
40STD-FB440WS4	438	125	83	0,50,75,100	5	90	1	53	4	75	1	68
40STD-FB530WS4	530	151	100		5	109	1	56	5	91	1	70
40STD-FB510WS4	615	175	115		5	126	1	54	5	106	1	69
40STD-FB690WS4	691	196	128		5	141	1	56	5	119	1	70
40STD-FB800WS4	805	229	146		5	164	1	58	5	138	1	72
40STD-FB880WS4	866	246	158		6	176	1	58	6	149	1	73
40STD-FB940WS4	943	368	172		6	192	1	73	6	162	1	88
40STD-FB1060WS4	1064	303	195		6	217	1	76	6	183	1	91
40STD-FB1290WS4	1199	341	219		8	244	1	79	8	206	1	94

Note:
1. Nominal refrigeration capacity benchmark: evaporator inlet and outlet water temperature 12℃/7℃, condenser inlet and outlet water temperature 30℃/35℃; fouling coefficient 0.088 ㎡•℃/kW;
2. Frozen water temperature range: 5℃ ~ 20℃;
3. Cooling water temperature range: 15℃ ~40℃.

Explosion-proof regulations
Explosion-proof Screw Chiller is in strict compliance with national standards:

1. GB3836.1-2010 Explosive atmospheres-Part 1：Equipment-General requirements.
This Part specifies general structure, testing and label requirements for electrical equipment and Ex components for application in explosive atmospheres.
The Explosion-proof type Chiller suitable for use under standard atmosphere conditions in the following dangerous places where explosive atmosphere exists:
Temperature: -20℃~+60℃；
Pressure: 80kPa~110kPa；
Standard oxygen content (volume ratio)：21%.

Special considerations shall be taken for electrical equipment to be used outside the atmosphere conditions mentioned above.

Water-cooled Explosion-proof Chiller

It is recommendable to consider the scenario of co-occurring explosive gas atmosphere and combustible dust atmosphere and to take additional precautions in places where these two may appear together.

Ignition sources not considered in this Part include: adiabatic compression, shock wave, exothermic chemical reaction, spontaneous combustion of dust, open flames, and hot gas/liquid.
Electrical equipment is classified into three types: Type I, Type II, and Type III.
Type I electrical equipment is used in places where coal seam gas exists.
Type II electrical equipment is used in places where there is explosive gas other than coal seam gas.
Type III electrical equipment is used in explosive dust atmospheres other than coal mines.

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Contact Person: Ms May Chow Mobile/WhatsApp: +86 18665672648 Tel: +86-20-62266755 Ext. 886 Fax: +86-20-82266081 Email: maychow@hstars.com.cn

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