Vacuum pumps VVN1

Conditioning

For example, 2VVN1-0.8-UHL4 TU3648- 236 -05747979-2004 , where :

• 2 -serial number of modernization;
• VVN1 -Vacuum water-haired pump with nominal pressure of 0.04 MPa;
• 0.8 -performance, m 3 /min;
• E -the pump execution index:
• E - for pumps (units) intended for operation in explosive and fire hazardous industries.
• Without designation - for general -industrial pumps.
• Ukhl -climatic execution;
• 4 -Placement category.

Appointment Vacuum pumps water-haul intended for Air suction or non-aggressive gases and steam-gas mixtures previously cleansed of the bulk of drip moisture and can work in the air and water or non-aggressive gases, pairs and liquids. Pumps do not require cleaning the incoming gas, as well as allow the ingress of liquids into the machine with sucking gas.

The pumps are intended for use in chemical, food, pulp and paper, oil, gas and other sectors of the national economy. The electric pump VVN1-1.5 can also be used on agricultural farms (for milking machines). Electric pumps 2VVN1-0.8 can be used to create a preliminary vacuum for high-convoy installations.

Pumps (units, electrical pumps) VVN, 2VVN belong to products of type 1 (restored) in accordance with GOST 27.003-90 and is available in the climatic performance of UHL 4.2 and T 2 according to GOST 15150-69. ; " />
VVN1-1.5 electric pump and pumping units VVN1-12, VVN1-3 and VVN1-0.75 are not intended for operation in explosive and fire hazardous rooms.

Electric pumps 2VVN meet the requirements of TR TS 010/2011. Electric pumps 2VVN1-0.8 with an end seal of the shaft, equipped with explosion-proof engines, meet the requirements of TR TS 012/2011 and are designed to install in explosive and fire hazardous rooms . Explosion-proof equipment- Group II, GB explosion protection level, “High”, type of explosion-protection “C”- structural security protection according to GOST31441.1-2011, temperature class- T3 (200 ° C) according to GOST30852.5-2002. Classes of explosive zones 1.2 GOST 30852.9-2002 and class B-1A according to PUE (seventh edition).

Design Electric pumps of the type 2VVN 1-0.8 and VVN 1-1.5 have a monoblock layout and consist of a pump mounted on the electric motor shaft of an eccentrically relative to the engine shaft on the frame. />
Pumping units of VVN 1-6, VVN 1-12, VVN 1-3 and VVN 1-0.75 consist of a pump and an electric motor mounted on a common frame.

Vakuyumovo Vakykoltseva - a simple -acting machine with lateral absorption and axial supervision. The principle of action is based on mechanical absorption and pushing of gas due to changes in the volume of the working cavity.

The pump consists of the following main details: cover, case, disk, bracket, shaft.

The case is a cast-iron casting that has absorption and injection cavities.

The absorption and injection cavities are connected to the working cavity, respectively, a large and small sickle-neck in the case.

The disk is attached to the shaft with a key. In the axial direction, the disk can freely move around the shaft, which ensures uniform end gaps between the lid and the body. The disk is made of bronze. When the disk is rotated, the water, carried away by the shoulder blades, under the influence of centrifugal forces, is discarded to the periphery of the lid, forming a water ring. Between the hub of the working disk and the inner surface of the water ring, a rarefied space is created that ensures the absorption of gas through a large sickle -shaped neckline in the pump body. With further rotation of the disk, the pumped gas is compressed. Through a small sickle-shaped neckline in the gas housing and excess water is thrown into the pumping pipe of the pump.

To maintain the constant volume of the water ring and the removal of heat secreted by the rubbing parts and compressed gas, it is necessary that water continuously circulates through the pump. Water should be clean, without mechanical impurities.

Electric pump VVN1-1.5 and VVN1-3 pumps, VVN1-0.75, VVN 1-6, VD 1-12 have a shaft saline seal. The electric pump 2VVN1-0.8 has an end seal of the shaft. />
The direction of rotation of the shaft is the right (clockwise, if you look from the side of the electric motor).

Application

• The food industry in the technological processes of the degassing of vegetable oils;
• Confectionery factories - for accelerated cooking caramel;
• Tobacco factories - for drying tobacco in the process of production of tobacco products;
• woodworking industry - for vacuum drying wood,
• Structures of housing and communal services and waterocanals- to fill the suction pipelines with pumped liquid
• Agricultural enterprises in watering systems to fill the suction line of centrifugal pumps

Features/advantages

• the ability to pump out air and gases with mechanical impurities;
• Lack of rapidly intelligent details;
• The use of the monoblock structure (VVN1-1.5, 2VVN1-0.8) made it possible to reduce vibration and noise levels in addition to the reduction of overall dimensions.
• The use of Salnikova stuffing from modern materials based on heat -expanded graphite and end seals of trusted manufacturers significantly reduces the time for maintenance and repair of the pump

Modifications of VVN1-6 pumps, VVN1-12 < /p>

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Specification

brands	Power consumed by the pump (max.), KW	Rotation frequency, rpm	Network voltages, in	nominal performance, m³/s	Redomed-based performance, % m³/s	water consumption, m³/h, no more than	Specific power in nominal mode, kW/m³*min	Engine power, kW
VVN1-0.75	2.2	1450	220/380	0.0125	40	0.18	2	2.2
2VVN1-0.8	1.3	2900	380	0.0140	40	0.0560	1	2.2
VVN1-1.5	3	1500	380	0.0260		0	4	5.5
VVN1-3	6.15	1500	380, 220/380	0.0560	20	0.4200		7.5
VVN1-6	9.6	1500	380, 220/380	0.1	20	0.66		15
VVN1-12	18.6	1000	380, 220/380	0.2	20	1.38		22

Pumps
Power, kVA	1,1
Flow, cubic meters/hour	1,5
pressure	50