Pressure system 8 machine control remote control. There is no need to set up a secondary inspection in the air compressor station. Entering the main machine, the main machine is equipped with a cylindrical screw and two pairs of meshing pairs in the worm worm groove inside the casing, the volume between the casing and the star, the star wheel rotates when the screw is running, the piston of the star wheel retractor, the star wheel is in the worm Relative movement in the tank, volute and discharge. The screw has 6 screw grooves, and one working space is provided by two star wheels, each of which realizes the suction compression and exhaust machine is equivalent to the six-cylinder double-acting piston compressor, and two compression cycles. The gas part with pressure passes through the oil and moisture, and after cooling, the main body 1 is a reciprocating structure of the crankshaft connecting rod, and the single-screw type has the following disadvantages: the probability of damage of the component is large, and the reliability of the product is low. . Repair costs. The structure has its weight due to its reciprocating motion. At the same time, the inertial force generated by the moving structure can cause vibration and noise of the machine and the non-vibration of the parts, and the mechanical noise is low and the reliability is low. , the main source of noise. From the perspective of airflow noise, the number of exhausts can be directly related. Assuming that the piston speed is doubled per cylinder and double acting, the number of exhausts per minute is 1,440. The worm speed is 2970 297 per minute, 1 also, 12 cylinders, the number of exhausts per minute is 35,640. The less the number of exhausts per unit time, the more severe the pulsation of the airflow and the greater the airflow noise. Vice versa, the two are quite different. Single-screw air compressor technology and application Hu Yuanjie Lanzhou West Depot of Lanzhou Railway Bureau, 735 points in Lanzhou, Gansu, working principle and comparison with other types of compressors, and the use situation is explained, combined with the unit's equipment A brief analysis of usage. Since the original three piston air compressors have been in use for more than 15 years, the state of each unit is poor and the maintenance cost has increased dramatically. According to the production needs, the unit uses the 000175 single mast air-cooled air compressor to form an air compressor station. It has good performance during use. Compared with the air compressors that have been in contact with the past, it has low noise, stable exhaust and vibration. Small, easy to maintain and so on. Structure and working principle of FHOG air compressor Single screw air compressor can be divided into pneumatic system oil circuit system and electric unit according to its process flow. 1.1 Internal structure 1.1.1 Gas path system The gas path process is that after the atmosphere is filtered, the unloading valve enters the compression chamber, combines with the lubrication air and performs 5 shrinkage, and the compressed gas combined with the oil enters the oil and gas separation barrel through the check valve. Separator water cooler gas water separator, after the air compressor through the gas tank precision filter refrigerating dryer hereinafter referred to as the cold dryer into the plant area compressed air pipe network ... 1.2 oil system oil circuit including tubing tank cooler Oil filter shut-off valve and temperature control valve. When the air compressor is started, the air compressor is close to the fully sealed state. The oil circuit first establishes the pressure. At the same time, the pressure acts as a cooling seal and the 1.1.3 control system automatically controls. The company adopts the setting and can display the correlation in real time. Work 7 protection over-temperature protection motor over-use output port connection = gas separator gas moisture no body can be adjusted to convert this post, only need to do 1.2 working principle every day external air is compressed by the gas in the unloading valve slot will be èž“The rods are separated horizontally into a translation process. The single-screw compression screw generates 1 discharge main unit per revolution, and then uses the compressed air pipe network in the equipment. 2 In use compared with other spear 2.1 single screw air compressor and live rotary motion structure. This inevitably increases the normal damage of the user's crankshaft connecting rod reciprocating gear. The airflow noise is a brief analysis of the air compressor as follows. Therefore, the piston and the air compressor are slid and run in unit time for 2 hours. 2, the oil spray chamber is used as a machine to protect the oil in the variable pressure control oil, or supercharged. Gu. , Moxibustion Benzyl, deputy, in order to meet the needs of the same household, Taiwan self-sweet 23 Cheng Yunwen H call, protect the super unloading igll. Suspected 1 range of moving parts to protect the remote control, protect the situation under the protection of Shi Ding, charm The comparison between the coffee electric control 2.2 single screw compressor and the double mast compressor is known from the technical overview. In addition to the double compact mast rotary compressor, the structure is simple and compact, the unit volume utilization rate is high, and the valveless valve assembly is not included. Because the star wheels are symmetrically placed on both sides of the worm, they also have the unique advantages unmatched by the following twin-screw compressors. 2.2.1 Large single capacity, no clearance volume Single screw main machine is divided into two upper and lower spaces by two star wheels, each of which realizes the process of inhalation compression and exhaust, and is synchronously carried out. This is a twin screw compressor. What can't be done is also incomparable in terms of airflow pulsation and airflow noise. Since the two types of air compressors can be rotated at the same speed, they can be analyzed and compared at the same speed. Since the worm compressor is running, each worm groove works twice in each revolution, so that the worm space is fully utilized. Therefore, compared with the twin-screw compressor, the worm compressor row is the same when the two structures are the same size. The gas volume is large; when the displacement of the two is the same, the structure of the worm compressor is small. In addition, the worm groove depth of the worm is reduced with the increase of the pressure. At the end of the exhaust, when the star tooth is separated from the single groove, the depth is zero, so there is no clearance volume. Therefore, the single screw compressor has higher volumetric efficiency than the twin screw compressor. 2.2.2 Reasonable structure, ideal balance of force The main part of the twin-screw compressor mainframe is the two screws commonly known as twin-screw. The main part of the worm compressor is the worm commonly known as single-screw. The following analysis of the twin-screw, worm double mast compressor in the process of compressing the gas, is bound to be the reaction force of the gas, the force on the two screws to form a large radial force and axial force, and naturally transmitted to the bearing Therefore, even if the twin-screw compressor is the best imported bearing, its life expectancy is only about 15,000. In the process of compressing the gas, the worm compressor is also inevitably subjected to the reaction force of the gas, which also forms a large radial force and an axial force on the worm. The worm compressor has an bleed air passage between the two ends of the worm, and the gas flowing to the high pressure side will flow back to the low pressure side through the bleed air passage, thereby balancing the gas forces on both ends of the worm. Since the star wheel is symmetrically arranged on both sides of the worm axis, the radial force of the gas acting on the worm is balanced, and the axial forces acting on the worm groove also cancel each other to achieve their own balance. Therefore, the worm is not subjected to any radial or axial gas force, and the force on the star wheel is only about 130 of the twin-screw compressor, so the main body of the worm compressor can be balanced and operated at high speed without vibration. Without a special foundation, it only needs to be placed on a level surface. Even if the worm compressor uses domestically produced ordinary bearings, its life can reach 150,000, and it can be repaired locally at the user's place. 2.2.3 Long life of the main engine Due to the high speed and light load of the worm compressor, the optimized design of the meshing sub-line is suitable for the gap, and it is easy to establish a fluid dynamic lubricating oil film in the gap between the screw and the star wheel, thereby effectively reducing the star. The wear of the wheel reduces the leakage of gas, improves the life and efficiency of the machine, and ensures safe and reliable operation. 2.2.4 Easy maintenance, less wearing parts There are no machines that never wear in the world. No matter whether it is a twin-screw compressor or a worm compressor, the main engine needs to be repaired after several years. For the replacement of bearings, the four heavy-duty bearings and the two point bearings of the double mast drive are purchased abroad, which is expensive; if the main and auxiliary rotors wear out or the bearings go out, the main and the vice The rotor and the inner wall of the casing are rubbed, and they cannot be repaired on site. The main engine must be transported back to the production plant, and the huge cost is about the price of the whole machine. The site can be solved at a very low cost. At the same time, due to the poor force of the twin-screw compressor, the bearing is stressed, and its mechanical noise is larger than that of the single-screw compressor. 3 Single-screw air compressor In recent years, the technical improvement of the worm-type air compressor came out late. In recent years, the technical improvement of the single-screw air compressor during the operation period and the energy saving and consumption reduction have been continuously made. 3.1 The main star wheel improved the single mast air compressor in the early 90s using phenolic resin material as the star wheel, but the effect is not ideal in use, especially during the running of the air compressor during the running-in period, the star wheel is easy to wear. Or loose. In response to this phenomenon, technical improvement was made, and PEEK material was selected as the material of the star wheel. In view of the current use of the material, the phenomenon of wear of the star wheel may occur after the normal operation of 30,000. 3.2 Improvement of Control System The electrical control system of single-screw air compressor is continuously improved and perfected with the development of technology and automation. At present, the air compressor can be remotely monitored and controlled according to the needs of users, and variable frequency speed control can also be used. The frequency conversion control is only too large when the initial capital investment, but the energy saving effect of the electrical and equipment body is significant during operation, and the user can select the equipment according to the specific conditions of the unit. 4 Conclusion Single screw air compressor has unique advantages. With the continuous improvement of single screw technology and continuous improvement of design technology, the performance of single screw air compressor's fuel consumption sealing air volume adjustment and automatic control will be improved, reliability and reliability. The economy is constantly increasing and the application field will expand and expand. 1 Xu Binghui. Pneumatic manual. Shanghai Shanghai Science and Technology Press, 2005.10 25.2 Editorial Board. Machine repair manual. Mechanical Industry Press, 1998.292 351.3 Mechanical industry technician evaluation training materials. Mechanical Industry Press, 2001.52 69.4 Qiu Xuanhuai. Mechanical Design. Seventh edition. Beijing Higher Education Press, 1999.41 50.5, Nakajima Hiroshi, translated by Wang Qixiang. Pneumatic mechanism and circuit design. Mechanical Industry Press, 6 Liu Wei. Mechanical Equipment Management Daquan, Tsinghua University Press, 2006.78 90.7 An Zijun. Mechanical Principles, Mechanical Industry Press, 1998.2530. 8 construction machinery manual. China National Water Resources and Hydropower Corporation, China Water Resources and Hydropower Press, connected to 33 pages, to meet the operating conditions of six 31, after the mother-in-law protection device sent 8 Ding input signal, 1 transformer differential over-current jump into the line cabinet, and at the same time The segment voltage drops below the low voltage setting value, the segment incoming line protection device sends no pressure and no flow signal, and the mother unit cabinet protection device should send a segment no pressure and no flow signal. After the low voltage time limit, the mother unit cabinet protection device should emit the dip The bus couple signal, at the same time, the busbar switchgear is closed. After 5 seconds, the busbar protection device 1 is turned on, and the busbar protection device sends out an exit signal. Repeat the above test to check the movement of the 1st line. 1 Liu Xuejun. The principle of relay protection is as follows. Beijing China Electric Power Press, 2007. Wang Dapeng and so on. Power system relay protection testing technology. Beijing China Electric Power Press, Wang Xifan. The basis of power engineering. Xi'an Xi'an Jiaotong University Press, 2000. 4 Wang Xin. Introduction to petrochemical fieldbus control technology. Gansu Science and Technology, 2008.37 1 on the 95 pages and finished product protection and other aspects of the general contractor unit on-site management and coordination. In the case of this mode of contracting, the general contractor does not assume any responsibility for the owner's separate contracting project. The owner can completely request the general contractor to directly sign the subcontract with the subcontractor and use this as the condition for the general contractor to undertake the business. 1 Li Hongfei. Analysis and thinking on the development status of the real estate industry. Gansu Science and Technology, 2 Wang Xueqing. International project management. Beijing China Building Industry Press, 2005. 3 Xu Rong. Project cost management. Shanghai Tongji University Press, 2005. 4 Yuan Yuehua. Analysis of the owner's designated subcontract management. Engineering quality, 2007, 205 Wang Jiansheng. Management of designated subcontracting by the owner during the tendering phase 1. Modernization of building management, 2003, ThermicTransfer Customized aluminum bar plate(plate-fin) heat exchanger is the most amazing is that you have met. Plate-Fin Heat Exchanger,Fin Tube Heat Exchanger,Plate Fin Heat Exchanger Design,Brazed Plate Heat Exchanger Xinxiang Zhenhua Radiator Co., Ltd. , https://www.thermictransfer.com
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Optional various cold side fin type
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Technical Parameters:
Operating pressure: 320-560 PSI
Test pressure: 600-1000PSI
Max operating temperature: 248 °F
Optional Customize other technical requirement
Compatible Fluids:
Mineral Oil
Water - Oil Emulsion
Water – Glycol
Other Fluids
Single screw air compressor technology and application