VRB-110 flameproof oil and gas recovery vacuum pump
I. Overview of oil and gas recovery
A large amount of oil and gas volatilization will occur in a series of links such as filling, transportation, storage and oil release of gasoline. These oil and gas discharged into the atmosphere, easy to cause photochemical smog, causing serious pollution to the environment, and then destroy the natural ecological balance. At the same time, the oil and gas in the air poses a threat to the physical and mental health of surrounding residents and refueling operators. In addition, the oil and gas discharged into the environment is still a major safety hazard that causes fire and explosion accidents, and the volatilization of oil and gas also leads to a huge waste of resources.
Based on the requirements of current environmental regulations, oil and gas recovery measures must be implemented in the process of automobile refueling and tank truck unloading. This requirement is in line with the current development status of the domestic automobile industry. For gas stations, regardless of whether they have back-end processing means, it is necessary to ensure that oil and gas can be effectively recovered when the car is refueled and the tank truck is unloaded, and the relevant equipment equipped with gas stations must meet the testing standards stipulated by environmental regulations.
VRB-110 oil and gas recovery pump is independently developed and produced by our company, which is a equipment specially suitable for the two-stage oil and gas recovery of gasoline refueling machines in gas stations. The pump is a distributed oil and gas recovery pump, which has many advantages such as simple structure, reliable performance, low running noise, light weight and beautiful appearance. In addition, the pump can also be used to pump gas, gas, hydrogen, petroleum cracking gas and other flammable and explosive gases, widely used in packaging, machinery and petrochemical industry and other fields.
Ⅱ. The use of environmental conditions
1. Altitude: The altitude of the place where the equipment is used does not exceed 1000m.
2. Maximum ambient air temperature: The maximum ambient air temperature varies with the season, but the upper limit is +40℃.
3. Minimum ambient air temperature: the minimum ambient air temperature is -20℃.
4. Humidity conditions: The highest average relative humidity in the wettest month is 90%.
5. Explosive dangerous place: The equipment is suitable for the explosive dangerous place is zone 1, and there is ⅡB, T4 explosive gas or steam mixture environment.
Ⅲ. The working principle
The VRB-110 oil and gas recovery pump belongs to the vane pump type, and its main components include the rotor, the stator (that is, the pump ring), the blade and the cover plate on both sides (that is, the pump body and the end cover). The pump relies on the eccentric rotor in the process of rotation, so that the working volume formed between the pump cylinder and the two adjacent blades on the rotor changes, so as to realize the transmission of gas.
In particular, the rotor is a cylindrical structure with a radial groove in which a blade is arranged and the blade can slide freely in the groove. The rotor eccentricity is set in the pump body, when the rotor is driven by the motor to start to rotate, under the action of centrifugal force, the slide is tightly attached to the inner wall of the pump body. In the first half of the rotation of the rotor, the space surrounded by the adjacent two blades gradually increases, thus forming a local vacuum area to achieve gas inhalation; In the second half of the rotation of the rotor, this space is gradually reduced, and the gas is compressed and pressed into the discharge pipe.
Ⅳ. Performance characteristics
1. Explosion-proof motor qualification: The explosion-proof motor used in VRB-110 flameproof oil and gas recovery pump holds the explosion-proof certificate to ensure safe operation in special environment.
2. Drive mode: direct motor drive mode to ensure efficient and stable power transmission.
3. Blade material characteristics: The blade is made of special PPS material, with self-lubrication, high and low temperature resistance and corrosion resistance and other excellent performance, effectively extend the service life of the equipment.
4. Material and treatment of key components: the pump body, pump ring and end cover are made of ductile iron, and the surface is treated with anti-corrosion to enhance the corrosion resistance and durability of the equipment.
5. Safety protection device: the pump body is equipped with an overflow valve, which can effectively prevent damage to the equipment due to excessive pressure and ensure the safe operation of the equipment.
6. Structural performance advantages: The unique blade structure gives the equipment significant advantages of stable performance, high reliability and low operating noise.
