Pump

Cryogenic pump

1.Description

Cryogenic liquid pump (cryogenic pump) is used in petroleum, air separation and chemical equipment to transport cryogenic liquid (such as liquid oxygen, liquid nitrogen, liquid argon, liquid hydrocarbon and liquefied natural gas, etc.) special pump.

Its purpose is to transport cryogenic liquids from low-pressure to high-pressure places.

With the development of air separation technology, cryogenic liquids have been widely used and developed.

Its function in air separation equipment is as follows: used for liquid circulation;

Or the liquid is extracted from the storage tank and pressed into the vaporizer, which is then vaporized and sent to the user.

Since the medium of cryogenic liquid pump is cryogenic liquid, the medium should be kept at low temperature in the process of transmission. If more heat is absorbed from the pump, a large amount of cryogenic liquid in the pump will vaporize and produce gas, thus affecting the work of the pump.

Therefore, cryogenic pump in the structure, materials, installation and operation of its special requirements, in order to achieve the cryogenic liquid delivery requirements.

According to the different working principles, cryogenic pump is mainly divided into reciprocating and centrifugal two types.

2. Technical parameter

Flow rate: 15-75l /h, 30-80l /h, 50-300l /h,

100-450l /h, 200-600l /h, 400-800l /h, 1000-2000l /h

Type a: horizontal, single cylinder, piston pump

Maximum outlet pressure: 20 Mpa, 16.5 Mpa, 5 Mpa, 3 Mpa

Minimum inlet pressure: 0.02mpa

Maximum inlet pressure: 0.8mpa

Input power: 318V, 3-phase, 50HZ

P.M. : 600-1250r.p.m

Motor power: 5.5kw, 7.5kw

LPG pump :

1.Description

The YQB series of liquefied petroleum gas pumps produced by our factory are mainly used to transport liquefied petroleum gas, dimethyl ether, methyl chloride, ethylene oxide, propane, propylene, butadiene, isobutylene, methanol and other olatile liquids with similar properties. And petroleum products, especially for LPG loading and unloading trucks, cylinder filling, workshop feeding and other work places. The pump is a volumetric vane pump with advanced structure.The stator curved surface is composed of a composite curve. The two ends are mechanically scaled. The fixed-fit end faces are all made of "O"-type sealing ring. The rotating moving parts are made of metal corresponding non-metal. It has the function of safe and reliable use and multi-purposeuse.

2.Work Principle

The pump type is a positive displacement vane pump, the work is driven by the blade centrifugal sliding, the flow rate is related to the rotational speed of the shaft, the inner curved surface of the stator is made of a composite curve, and the stator and the rotor, the baffle and the vane are composed of ten sealed cavities, because the stator curved surface is The compound curve, when the rotor rotates, the volume of the inlet chamber gradually increases, and a negative pressure is generated to generate suction, thereby sucking the oil. When the rotor rotates at a certain angle, the volume section is gradually reduced, thereby hydraulically discharging the oil, in the oil suction chamber and An oil block is placed between the oil pressure chamber to separate the oil suction chamber from the oil pressure chamber. The blade is closely attached to the inner curved surface of the stator by centrifugal force and two baffle structures, so that the pump works normally under the rated condition.

Technical Parameter