Anti corrosion water ring vacuum unit

NegotiableUpdate on 05/02

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Overview

The anti-corrosion water ring vacuum unit can be used to pump corrosive gases that do not contain solid particles, and is widely used in industries such as light work, chemical, food, textile, petrochemical, metallurgy, and pharmaceuticals.

Product Details

Anti corrosion water ring vacuum unitThis series of water ring pumps integrates corrosion-resistant materials and high vacuum technology.

The FSK series corrosion-resistant water ring vacuum pump can be used to pump corrosive gases without solid particles, and is widely used in industries such as light work, chemical, food, textile, petrochemical, metallurgy, and pharmaceuticals.

In practical use, water ring pumps are often used in processes such as vacuum drying, vacuum feeding, negative pressure dust removal, distillation filtration, and vacuum crystallization.

Anti corrosion water ring vacuum unitTechnical Specifications

model	Maximum pumping volume (m3/min)	ultimate vacuum		power (kw)	Speed (r/min)	Water consumption (L/min)	Inlet/outlet diameter (mm)
model	Maximum pumping volume (m3/min)	Mpa	MmHg	power (kw)	Speed (r/min)	Water consumption (L/min)	Inlet/outlet diameter (mm)
II FSK-1.5	1.6	0.098	735	3	1440	8	65/65
II FSK-2	2.76	0.098	735	4	1440	9	65/65
II FSK-3	3.85	0.098	735	5.5	1440	12	65/65
II FSK-4	4.68	0.098	735	7.5	1440	15	65/65
II FSK-6	6.1	0.098	735	11	1440	20	80/80
II FSK-8	7.8	0.098	735	15	1440	24.5	80/80
II FSK-12	12.6	0.098	735	22	970	26	125/125
II FSK-16	16.8	0.098	735	30	970	34	150/150
II FSK-20	20.4	0.098	735	37	970	36	150/150
Note: The performance in the table is at a gas temperature of 20 ℃, atmospheric pressure of 1013.25hPa (equivalent to 760mmHg), gas relative humidity of 70%, and water circulation supply temperature of 15 ℃. ② Extraction rate tolerance ± 10%. ③ The vacuum degree value in the table refers to the pressure that is negative than the standard atmospheric pressure. (1 mmHg=1 Torr=133.3 Pa, 0.1 Mpa=750 mmHg) Operation sequence of the crew: When there is no bypass valve in the unit, the water ring pump should be started first. The gas in the pumped system enters the water ring pump through the Roots pump (the gas pushes the Roots pump rotor to rotate on its own, like a flow meter), and then is discharged to the atmosphere. When the suction pressure of the water ring pump (if there is an atmospheric pump connected in series, it is the suction pressure of the atmospheric pump) reaches the initial specified value of the Roots pump (i.e. the allowable exhaust pressure), the Roots pump can be started, and the unit will officially operate and start working. When there is a bypass valve in the unit, start the water ring pump first, then start the Roots pump. At this time, the pressure difference between the inlet and outlet of the Roots pump is large, and the bypass valve automatically opens. Part of the gas in the pumped container enters the water ring pump through the bypass valve, and the other part also enters the water ring pump through the Roots pump. Obviously, the pumping rate increases, which quickly reaches the pre vacuum of the Roots pump. The pressure difference between the inlet and outlet is small, and the valve automatically closes (or manually closes), and the unit officially starts working. This method can greatly shorten the pre pumping time, but the equipment is more complex.

Analysis of the reasons for insufficient vacuum degree:

(1) The water ring is unstable in operation. If scaling occurs in the inlet pipe and the inlet solenoid valve is blocked, the pump's working water supply will be insufficient, resulting in unstable water ring operation. At this time, the pump will inevitably experience a decrease in output due to deviation from the design conditions, leading to a decrease in system vacuum. The solution is to remove scale from the inlet pipe and keep the inlet solenoid valve unobstructed.

(2) The imported one-way valve has failed. When the valve plate cannot be sucked up due to scaling, rust, or jamming, it will cause air leakage, that is, air will be sucked into the working pump from the inlet of the standby pump, resulting in an increase in pump power consumption and a decrease in system vacuum. The solution is to remove valve plate fouling or replace it with a new valve plate.

(3) Poor sealing. In the case of poor sealing or sealing failure at the shaft end, if external air is sucked into the water ring vacuum pump, it will cause a decrease in the system vacuum degree, accompanied by temperature differences in the two intake pipes of the pump.