THE APPLICATION OF ROOTS VACUUM PUMP IN THE PREPARATION OF GREASE

In the process of the preparation of the grease, sometimes inevitably some mixed with air, as a result of the existence of the air, make the product appearance muddy dark opaque, grease is more serious is that make the products in the process of packing density loose, storage stability and colloidal stability is bad, the serious influence product quality, and the address. For this reason, the technical means of vacuum must be adopted to prevent the air rod from entering or discharging the air that has been mixed.
The-application-of-roots-vacuum-pump-in-the-preparation-of-grease

(1) process flow of preparing grease with prefabricated soap. The second half runs in closed pipes. In order to avoid mixing the prepared soap with the base oil into the air when mixing, the vacuum mixing is adopted. That is, the pre-made soap and base oil are added to the mixing kettle according to a certain proportion, and then the vacuum (around 160mmHg) of the mixing kettle is pumped by the vacuum pump, and then the agitator is started to be mixed. In this way, the finished grease does not need to be degassed.70L-s-roots-booster-pumps-in-vacuum-heat-treatment-application

Safety Operation For Type 2X Rotary Vane Vacuum Pump

2 x type rotary vane vacuum pump to the two-stage structure and its working performance levels by high pressure and low pressure of two parts, its inlet connected to the vacuum container or a vacuum equipment, when operating the gas will be a lot of suction and discharge container. When equipment for vacuum, high pressure stage exhaust valve will be closed, high pressure will be transferred to the second level of inhaled gases, and the secondary suction and discharge, such vacuum equipment can obtain a certain vacuum. The technical parameters of the pump are 6 * 10-2pa. According to user’s usage, can be equipped with a vacuum pump (for example the roots vacuum pump), will be 2 x type rotary vane vacuum pump as the backing pump, due to the suction pneumatic booster pump, pump before continuous pumping, can make you get higher vacuum equipment.safety-operation-for-type-2x-rotary-vane-vacuum-pump

Safety operation and maintenance procedures of rotary vane vacuum pump:

(1) rotary vane vacuum pump should be installed in dry, ventilated and clean places.

(2) in general, rotary vane vacuum pump does not need to be bolted on the foundation, but must be placed smoothly to avoid vibration. For example, the mounting frame, the bolts must be tightened.

(3) connect the power according to the motor sign, install the ground wire and fuse with the appropriate capacity, install the heat relay corresponding to the motor, and rotate the motor in the direction of the arrow shown in the pump.rotary-vacuum-pump-in-medicine

Application of vacuum pump system in electric vacuum industry

Because the working principle of various electric vacuum devices is based on electric and magnetic fields to control the movement of electrons in space so as to enlarge, oscillate and display images. And vacuum pump system can prevent the electrons and the collision of gas molecules, ensure that the movement of electrons in the space, to avoid poisoning launch thermionic cathode oxidation, smoking inside the electronic devices into different requested for vacuum electronic devices (vacuum degree and guarantee the normal work of the electronic device.piston-vacuum-pump-air-ballast-valve

Application:

1. Research on vacuum and decaying surface physics:

For general vacuum research, the main purpose of the vacuum analysis mass spectrometer is to analyze the residual gases in the vacuum system. And research on the surface, are now gradually to vacuum mass spectrometer and low energy electron diffraction, auger electron spectrometer, secondary ion mass spectrometer, chemical analysis and electron spectrometer and field emission microscope and other instruments used in combination, to study under low pressure vacuum physical process. The partial pressure side volume is usually carried out at 10-9pa or lower pressure. Because the vacuum system used is mostly the vacuum pump without oil or less oil, the mass spectrometer is not required to have a wide quality range.
pplication-of-vacuum-pump-system-in-electric-vacuum-industry
2. Special devices:

Such as electron microscope, X ray tube, a cathode ray tube and the residual gas analysis of large vacuum electronic devices (uhf) in this type of application, don't like surface physics, need to test so low partial pressure, and hope that the instrument has a wide range of quality of work, at least has the ability of vacuum pump oil cracking object can be detected.

3. Film technology:

It is necessary to use the vacuum analyzer to control the process of film preparation. In the process, the main purpose is to reduce the residual gas atmosphere to prevent oxidation. The purity of the charged gas, such as the impurity of hydrogen and oxygen, is emphasized in sputtering process.the-principle-of-anti-return-device-for-vacuum-pump

PISTON VACUUM PUMP INSTALLATION

Piston vacuum pump is a volume pump, suitable for vacuum smelting, vacuum drying, vacuum coating, vacuum impregnation and other vacuum operations. piston vacuum pump can be used independently or as a pre-stage pump of other vacuum pumps, but it is not suitable for pumping from one vessel to another for conveying pump.Piston-vacuum-pump-installation

Description of principle of piston vacuum pump:

1. in the slide valve are installed in the pump body (1) (4), (3) within the slide valve is equipped with eccentric wheel, eccentric by to outside the pump cylinder shaft (2) driven to rotate, and the center axis of the pump cylinder center is overlap, slide valve in the pump cylinder of the cylindrical surface of slide, slide valve of the semicircular upper valve guide rail (5) sliding and swinging up and down freely. So the rotary piston vacuum pump cylinder was slide valve is divided into A, B two room, as shown in the above, if the shaft rotates counterclockwise direction, the room A gradually expanding, shrinking room B, finally A room into the biggest, room B to A minimum.The-application-of-water-ring-vacuum-pump-in-coal-mine-industry


2. on the other hand, the upper part is hollow, vacuum pump has slotted in room A side open, during A room to expand, gas through the hollow part of the slide valve, A indoor by slotted into the pump chamber.Type-of-oil-diffusion-pump

The Principle Of Anti-Return Device For Vacuum Pump

Two-stage rotary vane vacuum pump is belonging to an oil-sealed vacuum pump. In order to prevent the vacuum pump oil from returning to the pumped container when the pump is stopped, the built-in stop pump anti-return device is very important.the-principle-of-anti-return-device-for-vacuum-pump

Preventing pump back oil is usually achieved by a combination of gas path and oil path. Common methods are:

1. Set the pump stop anti-return device on the intake passage
2. There is a pump stop control anti-return device on the oil road.
3, the above two combinations
the-sealing-device-of-roots-vacuum-pump
Two-stage rotary vane vacuum pump
During the operation of the 2XZ series two-stage rotary vane pump, the control piston is kept sealed against the spring under the action of oil pressure. The valve disc of the anti-backup valve is kept in a lower position due to its own weight (valve open). After the pump is stopped, the oil pressure drops and the spring will control the piston to the top. This creates a path between the fuel tank and the piston of the anti-backup valve.application-of-water-ring-vacuum-pump-in-oil-depot

Piston Vacuum Pump Air Ballast Valve

The piston vacuum pump is equipped with a pneumatic mechanism, which can speed up the extraction of steam without contaminating the oil. Such as when the rotary piston vacuum pump only smoke in addition to the permanent gases, gas liquefaction due to pressure increase, no pump oil degradation, but if you want to used for vacuum dry or moist air, is not only have a permanent gases and water vapor in the gas, if use without gas ballast valve pump take out this part of the water vapor, steam will be liquefied and dissolved in oil, the vacuum properties of oil degradation, and thus reduce the pumping speed of vacuum pump and vacuum degree.

The compression process of water vapor is further described as follows:

1. be pumped in addition to water vapor, should be in indoor compression, compression until the exhaust valve opens, if the assumption of temperature in the rotary piston vacuum pump is 60 ℃, temperature of the water in this saturated vapor pressure of 20000 Pa (149). 4), once the pressure is reached in compression in the process of water vapor condensation beginning to water, but the 20000 Pa (149.4) can’t open the exhaust valve, because the rotary piston vacuum pump exhaust valve leads to the atmosphere and exhaust valve spring pin (exhaust valve spring is calculated at 1.2 KGF/cm2), which is the rotary piston vacuum pump pump cavity internal pressure to compress to 120000 Pa to (900) or more to get pushed open the valve, the water vapor after the compression, the compression stage have all condenses into water, and mixed with oil.piston-vacuum-pump-air-ballast-valve

2. in order to meet the requirements of moist air ejector, but not oily water pollution, so the town of rotary piston vacuum pump is equipped with gas institutions, its principle is to add a certain amount of air in the process of compression in order to improve the pressure of the mixed gas, mixed gas pressure as the sum of air pressure and water vapor pressure in the steam partial pressure has yet to reach the pump under the temperature of saturated steam pressure, the mixed gas pressure more than exhaust valve and open the valve, the steam too late in the rotary piston vacuum pump H pump cavity were outside the discharge pump liquefied.

3. piston vacuum pump air ballast valve can be used for another purpose to restore the ultimate pressure of vacuum pump. Although sometimes we used to take in addition to the general air, containing less non-condensable gas, usually air valve is closed, but when the time is long, oily but was polluted by air contains a small amount can be non-condensable gas, for no gas ballast institutions pump, only change new oil, or the heat oil pump, let the liquefied steam evaporation pump can resume the original extreme pressure, but for rotary piston vacuum pump gas ballast pump, as long as open the gas ballast valve operation 1 to 2 hours of restoring the limit pressure of the vacuum pump.rotary-vacuum-pump-in-medicine

4. piston vacuum pump air ballast valve operation is very convenient. When using the pneumatic valve, you can open the handwheel of the pneumatic valve. The opening degree of the handwheel can be adjusted. And vice versa. Therefore, how much the handwheel is opened depends on the degree of vacuum required by the user. Generally speaking, when the handwheel is fully opened, its vacuum degree is 13 Pa(10-1 bracket). If the user does not need to add air, the valve can be closed.
installation-requirements-for-water-ring-pump-line

Installation Requirements For Water Ring Pump Line

In the use of water ring vacuum pump in the process of the installation of equipment, but the correct installation is the premise of guarantee the normal work in the future, so during the installation process should pay attention to what we should pay attention to the problem?installation-requirements-for-water-ring-pump-line

(1) derusting, cleaning and assembling of water ring pump equipment:

1. Before installation, the anti-rust oil or dry oil applied on the processing surface must be cleaned and cleaned. Before installation, the rusty parts should be thoroughly removed before assembly.

2. All pipelines on the equipment should be cleaned and kept unimpeded.

3. Be familiar with the drawings and understand the equipment structure before the assembly of the machine parts.

4. When assembling the equipment, it shall first check the appearance shape and dimension precision of the parts and assembly, and confirm that it meets the requirements before assembling.DLV_Series_Double_Stages_Water_Ring_Vacuum_Pumps