First, the use and scope of use SK series water ring vacuum station pumps and compressors are used to pump or pressure feed gas and other non-corrosive, insoluble in water, gas does not contain solid particles, to form a vacuum or pressure in a closed vessel to meet specific process Equipment required by the process. Inhaled or pressured gas is allowed to contain a small amount of liquid. SK series water ring vacuum pumps and compressors are widely used in machinery, petroleum, chemical, pharmaceutical, food, ceramics, sugar, printing and dyeing, metallurgy, environmental protection and electronics industries. Due to the working process, the pump of the gas compression is carried out in an isothermal state, so the pressure delivery or pumping flammable, explosive gas is not prone to danger, so its application is more extensive. Pump model description. For example: SK-122i2J SK said water ring vacuum pump ; 12 said the maximum pumping capacity of the pump 12m3 / min (cubic meters / minute) Second, the working principle The impeller 3 is eccentrically mounted in the pump body 2, when the pump is started to inject a certain height of water as a working fluid, when the impeller 3 rotates in the direction shown in the figure, the centrifugal force acts on the inner wall of the pump to form a rotating closed water Ring 5, the upper surface of the water ring tangent to the hub, the inner surface of the lower part of the water ring just in contact with the blade tip. At this moment, a crescent-shaped space is formed between the impeller hub and the water ring, and the space is further divided into a plurality of small cavities equal to the number of blades by the impeller. If the upper part of the impeller 0 ° as a starting point, then the impeller at 180 ° before the rotation of the small chamber volume from small to large, and with the end cap on the suction port communicating, reducing the gas pressure in the space, the gas was Inhalation, when the inhalation end of the small cavity is isolated from the suction port; when the impeller in the 180 ° to 360 ° rotation process, the inner surface of the water ring gradually close to the hub, the small cavity from large to small, the space of gas When the pressure rises above the vent pressure, the gas is vented when the smaller chamber communicates with the vent port. Each rotation of the impeller, the blade space (small cavity) suction, exhaust time, a number of small cavity kept working, so reciprocating, the pump continuously pumping or pressure to send gas. Due to the heat generated during work, it will heat the working water ring and a part of the water is discharged together with the gas. Therefore, during the work process, the pump must be continuously supplied with water to cool and replenish the water consumed in the pump , To meet the pump's job requirements. When the pump exhaust gas is no longer used, one end of the pump exhaust connected to the water separator (can make a water tank instead), the exhaust gas and the part of the water discharged into the water separator, the gas discharged through the exhaust pipe , The water remains in the separator due to gravity and is supplied to the pump for circulation through the return pipe. With the Director of working hours, the working fluid temperature will continue to rise, this time to be added to the steam separator a certain amount of cold water (tap water can be used) to reduce the temperature of the working fluid to ensure that the pump can achieve the required technology Requirements and performance indicators When used as a compressor, the pump exhaust connected to a car separator, the car mixture into the separator automatically separated gas from the exhaust pipe to the desired system and the working fluid through the automatic overflow switch release, Compressed gas, the working fluid is very easy to heat, the exhaust outlet from the pump, the temperature will become higher, so at the bottom of the steam separator, to continue to supply cold water to replenish the hot water was released, while cooling , So that the working fluid temperature will not be too high, so as to ensure the compressor performance, to achieve technical indicators to meet the job requirements. Third, the structure description Pump by the pump body, before and after the end cover, impeller, shaft and other components. The intake pipe and the exhaust pipe are connected with the pump cavity through suction holes and exhaust holes which are arranged on the disk cover on the end cover. The impeller is fixed on the shaft by keys and eccentrically installed in the pump body. The total gap at both ends of the pump is adjusted by the pad between the pump body and the disk. The clearance between the impeller and the front and rear disks is adjusted by pushing the impeller (SK-1.5 / 3/6) Evenly. The SK-12 pump, shaft and impeller for the interference fit, the gap determined by the front-end positioning. SK-120 sleeveless, the rest of the structure and SK-6/12/30/42/60/85 the same. The clearance between the impeller end faces and the front and rear discs determines the size of the loss of gas and its ultimate pressure in the flow of gas in the pump chamber from the intake port to the exhaust port. Filler installed in the two end caps, sealing water through the hole in the end cap into the filler, cooling filler and enhance the sealing effect. The additional water needed to form the water ring by the impeller is supplied by the water supply pipe (tap water), and the water supply pipe can also be connected with the water separator to circulate the water supply. If the seal type mechanical seal, the mechanical seal installed in the filler cavity, without packing, packing gland replaced mechanical seal gland, the remaining structure is the same. Bearing by the garden nut fixed on the shaft. In the end cap is installed on the disc, the disc is equipped with suction, exhaust and rubber ball valve. The role of the rubber ball valve is that when the gas pressure between the impeller blades reaches the exhaust pressure, the gas is discharged before the exhaust port to feed the power consumed due to the excessive gas pressure so as to reduce the power consumption. Fourth, equipment description Series water ring vacuum pump and compressor system from the vacuum pump (compressor), couplings, motors, steam separator and piping and other components. The working process of the vacuum pump and the compressor and the steam main is as follows: the gas enters the vacuum pump or the compressor from the pipeline through the valve, and then discharged into the separator through the draft tube and into the separator through the separator. When used as a compressor, the mixture of soda and water exiting the compressor is separated in the water separator and the gas is passed through the valve to the system where the compressed gas is to be compressed. The water remains in the separator and the water in the separator passes through Automatic overflow switch to adjust, when the water level is higher than the required water level, the overflow switch is turned on, water overflow from the overflow pipe; when the water level is lower than the required water level, the overflow switch is turned off, the water separator in the water level rise to reach the required level. The working fluid in the vacuum pump or compressor is supplied by the water separator (tap water is also available). The amount of water supply is adjusted by the valve on the water supply pipe. The difference between gas suction and pressure delivery systems is that the internal structure of the water separator is different. Suction gas, the suction port pressure is lower than atmospheric pressure, and the exhaust port pressure is equal to atmospheric pressure, water separator only overflow pipe; pressure delivery of gas, the suction port is atmospheric pressure (also for the vacuum state), the exhaust port The pressure is higher than one atmosphere. To ensure the delivery of gas pressure, the water separator's water level is controlled by the overflow switch.