Explosion-proof Compressor

admin — Sat, 06 Jul 2024 13:27:03 +0000

Explosion-proof screw air compressors are used in hazardous environments such as chemicals, petroleum, mines, etc. They are divided into two categories, screw-type mobile air compressors for coal mines and non-coal (chemical) explosion-proof screw air compressors . It mainly has intake valve, air filter assembly, explosion-proof power distribution device, high-efficiency explosion-proof three-phase asynchronous motor, explosion-proof pressure and temperature transmitter, screw host, oil and gas separator, minimum pressure valve, changer Heater, protection device and various pipelines. The electrical explosion-proof components used in this product comply with the relevant regulations in the national standards GB3836.1-2010, GB3836.2-2010, GB3836.3-2010, GB3836.4-2010, etc., and are products with relevant explosion-proof certificates.

Design requirements

1. The whole machine is explosion-proof.

2. The air inlet filter is a dust and water removal container type catcher.

3. Add flame arresters before inlet and after outlet.

4. Shall be frequency conversion (air source temperature is not fixed).

5. booster head process shall be explosion-proof type.

6. Overall internal circulation design.

7. oil content control.

8. leakage early warning control

9. separate program design rather than standard design.

10. Motors and electrical appliances should be selected according to high standards.

Comparison of BT4 class with normal compressors

NO.	Controlled components	BT4 compressors	normal compressors
1	Explosive medium temperature group T1-T6	T1: Gas ignition temperature>450℃	/
		T2: Gas ignition temperature 300℃	/
		T3: Gas ignition temperature 200℃	/
		T4: Gas ignition temperature 135℃	/
		T5: Gas ignition temperature 100℃	/
		T6: Gas ignition temperature 85℃	/
2	BT4 Explosion-proof control box	protection grade IP65 A21 zone T 80℃ with explosion-proof certificate	/
3	Motor and Fan	1. explosion standard ExdIAT4Gb, ExdIBT4Gb
		2. Protection grade of main housing IP55 and IP65	Protection grade of main housing IP23 and IP54
		3. The cooling mode IC411 (Internal and external circulation air cooling and free circulation cooling. The cooling mode of the motor is totally enclosed, and the outer surface is cooled by axial self fan, that is, the motor itself is cooled by fan, and there is no need for external power supply)	Radial flow ventilation cooling way
		4. Insulation grade F	Insulation grade B or F
		5.Rated voltage ：AC400v	Rated voltage ：380v
		6.The junction box with excellent explosion-proof structure and protection grade	The junction box is located on the right side of the motor
		7.Dust explosion-proof: A20, A21, A22, at present, zone 21 is the highest dust explosion-proof grade of dust explosion-proof motor, which can replace zone 22	/
		8.explosion-proof certificates are available	/
4	Emergency stop button	Protection grade IP65 A21 zone T 80℃ with explosion-proof certificate	/
5	Control button	Protection grade IP65 A21 zone T 80℃ with explosion-proof certificate	/
6	Voice alarm	Protection grade IP65 A21 zone T 80℃ with explosion-proof certificate	/
7	cables	explosion-proof cables	RVV cables
8	Pressure sensor	Protection grade IP65 A21 zone T 80℃ with explosion-proof certificate	/

Specification

No	Model	Power (kw)	Speed (rpm)	Nominal	Rated	Voltage (V) (Optional)	Cooling	Lubrication	Explosion -proof grade
				flow	exhaust		method	method
				m³/min	pressure		(Optional)	(Optional)
1	ENEP- 7.5	7.5	2980	1.0	0.8	380/660/1 140	Water/Air	Water/oil	BT4
				0.85	1.0
				0.65	1.25
2	ENEP- 11	1 1	2980	1.5	0.8	380/660/1 140	Water/Air	Water/oil	BT4
				1.0	1.0
				0.85	1.25
3	ENEP-15	15	2980	2.0	0.8	380/660/1 140	Water/Air	Water/oil	BT4
				1.5	1.0
				1.0	1.25
4	ENEP-18.5	18.5	2980	2.9	0.8	380/660/1 140	Water/Air	Water/oil	BT4
				2.0	1.0
				1.5	1.25
5	ENEP-22	22	2980	3.5	0.8	380/660/1 140	Water/Air	Water/oil	BT4
				3.0	1.0
				2.0	1.25
6	ENEP-30	30	2980	4.8	0.8	380/660/1 140	Water/Air	Water/oil	BT4
				4.0	1.0
				3.0	1.25
7	ENEP-37	37	2980	6.0	0.8	380/660/1 140	Water/Air	Water/oil	BT4
				5.0	1.0
				4.0	1.25
8	ENEP-45	45	2980	7.0	0.8	380/660/1 140	Water/Air	Water/oil	BT4
				6.0	1.0
				5.0	1.25
9	ENEP- 55	55	2980	10.0	0.8	380/660/1 140	Water/Air	Water/oil	BT4
				8.0	1.0
				6.0	1.25
10	ENEP- 75	75	2980	13.0	0.8	380/660/1 140	Water/Air	Water/oil	BT4
				10.0	1.0
				8.0	1.25
1 1	ENEP- 90	90	2980	16.0	0.8	380/660/1 140	Water/Air	Water/oil	BT4
				12.0	1.0
				8.0	1.25
12	ENEP-110	110	2980	20.00	0.8	380/660/1 140	Water/Air	Water/oil	BT4
				16.0	1.0
				12.0	1.25
13	ENEP-132	132	2980	24.0	0.8	380/660/1 140	Water/Air	Water/oil	BT4
				20.0	1.0
				16.0	1.25
14	ENEP-160	160	2980	26.0	0.8	380/660/1 140	Water/Air	Water/oil	BT4
				24.0	1.0
				20.0	1.25
15	ENEP-185	185	2980	30.0	0.8	380/660/1 140	Water/Air	Water/oil	BT4
				26.0	1.0
				24.0	1.25

Explosion-proof Gas Compressor – ENAIR Compressor

Explosion-proof Compressor