124 results about "Reciprocating compressor" patented technology

The invention discloses a virtual reality interactive training method for a reciprocating compressor system, and particularly relates to the technical field of industrial equipment operation training, and the method comprises the four steps: constructing a three-dimensional simulation scene, and generating a preset task standard track; collecting trained behavior data, and judging whether path deviation or key node misjudgment exists or not; calculating a cognitive divergence index and a fault reasoning consistency index, and inputting the indexes into the decision model to generate a training adjustment parameter set; dividing the participants into high-level or low-level interactive behavior types according to a parameter result, and dynamically optimizing a task path or entering a next training process according to the high-level or low-level interactive behavior types; according to the method, through behavior data acquisition and deviation identification, construction of a cognitive divergence index and a fault reasoning consistency index and driving of a decision model to generate training adjustment parameters, participant interaction behavior level identification is realized, a task path structure is dynamically adjusted based on an evaluation result, and personalized training process optimization and cognitive intervention are realized.

A reciprocating compressor is disclosed. The reciprocating compressor includes a housing, an electric motor, a compressor section, a crankshaft, and a counterweight. The counterweight may be equipped with a spill guide extending from a fixed portion toward the opposite side of the eccentric mass portion, guiding oil spilled from the oil flow path toward the compressor section. This causes a large amount of oil spilled from the oil flow path to be spilled further toward the cylinder and piston, thus ensuring a smooth supply between the inner circumferential surface of the cylinder and the outer circumferential surface of the piston, thereby improving the compressor's cooling capacity and / or energy efficiency.

The utility model discloses an air inlet filter for an air compressor, which relates to the technical field of filters, and comprises an air filtering piece for filtering air, and the air filtering piece is arranged at the air inlet end of a top cover; the top cover is mounted in the tank body filled with lubricating oil in a matched manner; an air inlet channel is formed in the top cover, and an air pipe is fixed below the air inlet channel; the lower end of the air pipe is immersed in the lubricating oil; according to the utility model, under the extraction of the reciprocating compressor or the screw compressor, external air enters the outer shell through the top cover, passes through the filter and the filter element and then enters the air inlet pipe; the air enters the air inlet channel in the top cover, then the air is conveyed into the lubricating oil through the air pipe, when the air is pumped away again, the air carries part of the lubricating oil component, and therefore an air path of the compressor can be conveniently lubricated. Due to the arrangement of the filter and the filter element, dust carried in the air is reduced, and the cleanliness of the air entering the air compressor is guaranteed.

The high-precision piston rod connecting structure comprises a piston rod, the upper end of the piston rod is connected with a piston body, the lower end of the piston rod is connected with a crosshead, the upper end of the crosshead is connected with a positioning flange with a center hole, and the lower end of the piston rod is a reducing end transited through a conical surface section. The reducing end penetrates through the center hole of the positioning flange and is stretched and locked by a first fastening structure; the upper section of the center hole of the positioning flange is a taper hole matched with the conical surface section of the piston rod; the upper end of the piston rod penetrates into a center hole of the piston body, is stretched and locked by a second fastening structure and is provided with an anti-rotation structure. Automatic centering is achieved through conical surface matching, stable pre-tightening force is provided in cooperation with a double-fastening structure, the problems that a traditional connecting structure is insufficient in precision and poor in locking reliability are effectively solved, the operation precision and stability of a compressor are greatly improved, and meanwhile the compressor connecting structure has the advantages of being convenient to install and maintain and long in service life.

A reciprocating compressor is disclosed. The reciprocating compressor includes a shell, a driving motor, a crankshaft, a piston, and a bearing protrusion, wherein the bearing protrusion may have at least one oil receiving groove formed in a linear bearing portion extending along a reciprocating direction of the piston in a direction intersecting the reciprocating direction of the piston. Accordingly, a sealing surface using an oil film in the linear bearing portion is reinforced while the refrigerant in a compression chamber is effectively prevented from leaking through a gap between a cylinder and the piston, thereby improving energy efficiency and / or cooling capacity of the compressor.

Disclosed is a reciprocating compressor. The reciprocating compressor can include a housing, a driving motor, a driving shaft, a piston, a cylinder, and a suction muffler, and a refrigerant trapping portion wider than a suction inlet can be provided between an internal space of the housing and the suction inlet of the suction muffler. Thereby, manufacturing costs of the suction muffler can be saved by simplifying the structure of the suction muffler, and vibration and / or noise at the suction muffler can be effectively attenuated by sufficiently securing a muffling space while simplifying the structure of the suction muffler, and the amount of refrigerant suction into the compression chamber can be increased and compressor performance can be improved by increasing the amount of refrigerant suction by the suction inlet.

This application relates to a device for reducing the energy consumption of a reciprocating compressor in a light hydrocarbon recovery unit. The device includes a feed gas compressor, a desulfurization tower and a molecular sieve tower connected to the feed gas compressor, a first expander connected to the molecular sieve tower, and a cold box connected to one side of the first expander. A second expander is disposed between the feed gas compressor and the desulfurization tower, and the pressurization ends of the feed gas compressor and the second expander are in relative communication. A circulating cooling device is also provided between the feed gas compressor and the desulfurization tower. This application reduces the outlet pressure of the reciprocating compressor and the inlet temperature of the feed gas in the cold box of the light hydrocarbon recovery unit, thereby reducing the energy consumption of the reciprocating compressor and improving the operating efficiency and yield of the light hydrocarbon recovery unit.

A water tank is connected with a main water pump and an auxiliary water pump which are connected in parallel, and overflow stop valves are respectively arranged at outlets of the main water pump and the auxiliary water pump; the water pump is divided into two paths, the first path leads to the air cylinder through a first bypass service valve, the second path is connected with a cooling device, the cooling device is composed of two coolers connected in parallel, the cooling device is connected with a filtering device, and an outlet of the filtering device leads to the filler; a mixed flow valve is connected between the rear end of the cooling device and the front end of the first bypass service valve, and an outlet of the mixed flow valve leads to the air cylinder and leads to the filtering device through the second bypass service valve. The mixed flow valve is adopted to adjust the temperature, that is, the temperature is automatically adjusted through the change of the opening degree of the adjusting valve, and the temperature stability during operation of the softened water station is realized. Overflow stop valves are arranged at outlets of the main water pump and the auxiliary water pump respectively, the minimum continuous stable flow of the centrifugal water pump is met by adjusting the stop valves, and the centrifugal water pump can be protected to operate under safe pressure.

The invention relates to the technical field of compressor air valve maintenance, in particular to a multi-angle adjustable disassembling and assembling tool for a heavy air valve of a reciprocating compressor. The device comprises an air valve multi-angle adjustable disassembly and assembly tool and an air valve disassembly and assembly fixing pull rod set. The multi-angle adjustable disassembling and assembling tool for the air valve comprises a three-jaw chuck, a lifting supporting frame, a hydraulic lifter and an angle adjusting base, the three-jaw chuck is installed at the top end of the lifting supporting frame, the hydraulic lifter can drive the lifting supporting frame to ascend and descend, and the bottom end of the lifting supporting frame is installed on the angle adjusting base. Hydraulic lifting is achieved, time and labor are saved, the labor intensity of maintenance staff is reduced, safety and reliability are achieved, disassembly, assembly, movement and transportation are convenient, working efficiency is high, and air valve installation is firmer and high in precision.

A multi-mode operation method for the coordinated operation of screw compressors and reciprocating compressors relates to the field of compressor unit control technology. The multi-mode operation includes screw compressor standalone operation mode, reciprocating compressor standalone operation mode, screw compressor and reciprocating compressor coordinated operation mode, screw compressor and reciprocating compressor coordinated gas supply operation mode, and over-condition operation mode. The unit is equipped with a wireless remote transmission module, and the host computer is connected to a cloud-based management platform, supporting real-time access from multiple terminals to achieve remote monitoring and control. Based on real-time perception and big data analysis of multi-source operating parameters, this invention innovatively constructs a full-process intelligent control architecture of "operating condition monitoring - mode matching - precise control - remote coordination", realizing intelligent switching between multiple modes such as screw compressor standalone operation, reciprocating compressor standalone operation, screw compressor and reciprocating compressor coordinated operation, screw compressor and reciprocating compressor coordinated gas supply operation, and over-condition operation.

The utility model provides a kind of valve group and compressor of miniaturization reciprocating compressor, it is related to compressor field, to the problem that the temperature of existing small compressor cylinder head is too high, gas flow resistance increases and leads to efficiency reduction, by the offset structure of valve plate on the valve plate subassembly suction hole, enlarge suction valve port flow area, reduce suction resistance, reduce the pressure loss and friction heat in suction process, to reduce suction overheating, from the source to relieve cylinder head overheating problem, allow to adopt smaller size cylinder hole, meet the demand of compressor miniaturization, the valve tongue both sides of suction valve piece are provided with contraction part to form waist, exhaust hole is arranged between two sides waist, adapt to the compact space of miniaturization valve group, suction muffler outlet and cylinder cover keep apart, leave gap, cut off the heat conduction path between cylinder cover and suction muffler, form heat insulation, reduce suction overheating, reduce cylinder head temperature benign cycle, improve miniaturization reciprocating compressor efficiency.

The invention relates to the technical field of reciprocating compressors, in particular to a reciprocating compressor blowdown manifold structure with liquid sealing and gas-liquid separation functions. Comprising a first connecting hole, a second connecting hole and a third connecting hole, a liquid seal connector is arranged in the first connecting hole, a filler drainage connector is arranged in the second connecting hole, and a filter is arranged in the third connecting hole. An exhaust joint is arranged in the third connecting hole; the end face, located in the inner cavity of the sewage collecting pipe, of the liquid seal connector is a diagonal plane. According to the invention, the liquid seal joint presents the diagonal plane, so that on one hand, exhaust gas can be conveniently discharged, and on the other hand, the liquid seal joint with the diagonal plane can be used for discharging waste oil and completing a liquid seal effect on the exhaust gas when the waste oil exceeds the diagonal plane; and the pressurized sulfur-containing process gas leaked from the filler pollution discharge joint is prevented from entering the machine body middle body through the liquid seal joint to enter a plant.

The present invention relates to a method for monitoring the condition of a piston rod sealing system (12) of a reciprocating compressor, wherein the piston rod sealing system (12) comprises at least two grooved annexes (12a) arranged sequentially along a longitudinal direction (L) and each having at least one sealing element (12b) disposed therein, wherein a piston rod (16) extending through the sealing element (12b) and the grooved annexes (12a) is movable longitudinally and sealed by the sealing element (12b), wherein the piston rod sealing system (12) has an inlet side (E) and an outlet side (A) with a pressure difference between them, the pressure difference having a static pressure component (D). S ) and dynamic pressure component (D D The leaking gas is located in the grooved annulus (12a), and the dynamic pressure component of the leaking gas is at least measured in the piston rod sealing system (12) as a percentage (D). D ), by the dynamic pressure component (D) D The state change of at least one of these sealing elements (12b) over time is determined.

This invention relates to the field of compressor testing and control technology, and more specifically, to a fault simulation testing and control system and method for reciprocating compressors. It addresses the problem that existing reciprocating compressor fault simulation testing and control systems often employ deterministic or simplified excitation methods for valve fault simulation, making it difficult to integrate dynamic operating conditions with real random disturbances, and thus failing to achieve precise and repeatable fault injection based on crankshaft phase. This invention integrates quantum random signals and the compressor operating condition spectrum through a valve quantum fault simulation module. By dynamically adjusting the disturbance and feature ratio through time-varying weights, it generates a high-fidelity, adaptive composite excitation. Based on preset fault types and crankshaft phases, features are injected at specified angles through phase window control, achieving controllable, repeatable, and highly realistic simulation of multiple types and phases of faults.

This utility model discloses a mixed-transport booster reciprocating compressor unit, including a primary intake scrubbing tank, a secondary intake scrubbing tank, a variable frequency main motor, a mixed-transport separation tank, and a heat dissipation chamber. This utility model uses the primary intake scrubbing tank to perform primary scrubbing and purification of the process gas. Combined with the primary intake buffer tank, primary compressor, and primary exhaust buffer tank, gas can be smoothly delivered to the secondary intake scrubbing tank. The secondary intake scrubbing tank performs secondary scrubbing and purification of the process gas. Combined with the secondary intake buffer tank, secondary compressor, and secondary exhaust buffer tank, gas can be smoothly delivered to the mixed-transport separation tank. Through the gas-liquid mixed-transport, the liquid phase can be transported via pipeline to a treatment station for centralized processing, reducing equipment, tank truck, and personnel costs associated with the collection tank.

The invention relates to the field of industrial equipment state monitoring and fault diagnosis, and discloses a multi-information fusion reciprocator fault diagnosis method based on LSTM. The method comprises the following steps: acquiring multi-source operation data such as vibration, temperature, pressure, current and crank angle, performing angular domain synchronization, denoising, smoothing and normalization processing on a multi-source signal under a crank angle coordinate system, extracting each physical field feature, and determining an initial weight based on feature importance; and meanwhile, sensor health degree evaluation is introduced, and adaptive adjustment is performed on each physical field weight to obtain a target fusion feature sequence. And inputting the target fusion feature sequence of a plurality of continuous working cycles into an LSTM time sequence diagnosis model, constructing a working condition adaptive threshold by combining a model, a structure parameter, an operation load and a medium working condition, and realizing fault alarm and early warning by adopting probability statistics and trend analysis of short-term and long-term time windows. The method is suitable for online state monitoring and fault diagnosis of the reciprocating compressor.

The invention discloses a method for controlling vibration of piping of a reciprocating compressor. The method comprises the following steps that firstly, the natural frequency of an air column of a piping system is calculated; secondly, a buffer is designed and installed at the position close to the air cylinder; thirdly, a damping hole plate is additionally arranged on the specific pipe section according to the piping working condition; 4, arranging a pipe collector at the pipeline junction of the parallel operation piping system; 5, the pressure pulsation value of each pipe section of the pipe system is controlled; 6, performing piping modal analysis and stress analysis by adopting special software; according to the method, a simulation analysis method and special software are adopted, and optimization measures of the system are combined, so that source control of piping vibration is realized, and the problems of unreasonable design and inaccurate calculation in the prior art are solved. Piping vibration is effectively restrained, fatigue damage, leakage and other faults of pipe fittings are reduced, the equipment shutdown probability is reduced, the maintenance cost and material loss are reduced, and the operation stability and economic benefits of the device are improved.

The application relates to the technical field of fault diagnosis, and discloses a reciprocating compressor fault diagnosis method, device, equipment and storage medium, leakage correlation parameters in a cylinder of a target reciprocating compressor are acquired, then a non-steady-state fluctuation baseline formed by non-steady-state fluctuation is fitted in a local weighted regression mode, non-steady-state fluctuation noise is stripped through feature decoupling, pure fault features are extracted, the features are divided according to working condition stages and are adapted to a load sensing model, time sequence feature capturing is strengthened, finally, key features are focused through double-stage attention, a working condition compensation dynamic adjustment classification threshold value is combined, and a diagnosis result is output. Therefore, the application realizes the collaborative optimization of fluctuation noise separation, weak feature extraction and accurate classification of the start-stop transition working condition of the reciprocating compressor based on the combination of feature decoupling stripping of non-steady-state fluctuation noise and working condition stage division and load sensing BiGRU, and solves the problem that a traditional diagnosis method cannot adapt to the non-steady-state characteristics of the start-stop transition working condition.

To provide a reciprocating compressor that can more reliably discharge hydrogen gas remaining in the cylinder section of the compressor body. [Solution] The reciprocating compressor 1 comprises a hydrogen gas passage 10, a compressor body 13 composed of a reciprocating compression mechanism, a nitrogen gas supply passage 16 for supplying nitrogen gas, an on-off valve 17 provided in the nitrogen gas supply passage 16, a gas discharge passage 18 for discharging nitrogen gas, an on-off valve 19 provided in the gas discharge passage 18, a control unit 20, and a pressure sensor 21 provided in the discharge-side passage 12. When the compressor body 13 stops, the control unit 20 sequentially executes a first valve operation, a second valve operation, and a third valve operation. The first valve operation is the operation of opening the on-off valve 17 and closing the on-off valve 19. The second valve operation is executed when a predetermined pressure condition is met and closes the on-off valve 17. The third valve operation is executed when the pressure P falls below a threshold and closes the on-off valve 19.

The present application relates to the technical fields of compressor piston rod maintenance, and provides a reciprocating compressor piston rod protection device, which comprises a base, the left side of the base is connected with a bottom plate, the upper part of the bottom plate is provided with an oil tank, an oil pipe connected to the gear oil pump is output from the oil tank, an oil pipe connected to the electromagnetic reversing valve is output from the gear oil pump, an oil pipe connected to the throttle valve is output from the electromagnetic reversing valve, an oil pipe connected to the hydraulic control check valve is output from the throttle valve, an oil pipe connected to the balance valve is output from the hydraulic control check valve, and an oil pipe connected to the lifting oil cylinder is output from the balance valve. The piston rod is placed horizontally between the concave bracket and the upper and lower flaps, and the piston rod in the upper and lower flaps is converted from the horizontal state to the vertical state through the lifting action of the lifting oil cylinder, so that the deflection of the piston rod is prevented from changing, the probability of failure of the piston rod during operation is reduced, and the problem of difficult hoisting when the piston rod is vertically placed is solved.

This invention discloses a reciprocating compressor muffler in the field of refrigerator compressor technology, comprising a housing and an isolating component. The housing has an air inlet and an air outlet. The isolating component is disposed inside the housing, dividing the inner cavity of the housing into an upper cavity and a lower cavity. The upper cavity communicates with the air outlet, and the lower cavity communicates with the air inlet. Multiple reflective ribs are disposed on the inner wall of the top of the housing, dividing the upper cavity into multiple chambers. An air inlet hole communicating with the upper and lower cavities is provided on the isolating component, and the air inlet hole and the air outlet are located in the same chamber. The bottom sides of the multiple reflective ribs are inclined relative to the horizontal plane, and the inclination angles of the bottom sides of the multiple reflective ribs are all different. There are gaps between the bottom sides of the multiple reflective ribs and the isolating component, and the widths of the gaps between the multiple reflective ribs and the isolating component are all different. This invention solves the technical problem that existing devices cannot simultaneously improve air intake efficiency and reduce noise, thus improving both air intake efficiency and noise reduction performance.

The valve system, to be used as a suction valve and / or as a discharge valve in a reciprocating compressor, comprises a valve body, at least one sensor mounted on the valve body and configured to detect a parameter associated to operation of the valve device, and a wireless communication unit electrically coupled to the at least one sensor and configured to transmit information detected by the at least one sensor; the at least one sensor is associated with a fixing member that is inserted in holes of the valve body and that seals the holes. The innovative valve system may comprise further at least one energy harvesting system, which could be for example thermoelectric or piezoelectric, located preferably in or on or at the valve body.

A reciprocating compressor is disclosed. The reciprocating compressor comprises a shell, an electric motor part, a compression part, a crankshaft, and a balance weight, wherein the balance weight may be provided with a scattering guide part that extends from a fixing part in a direction facing away from an eccentric mass part and guides oil scattered from an oil flow path toward the compression part. Accordingly, a large quantity of oil from the oil scattered from the oil flow path is scattered farther toward a cylinder and a piston and smoothly supplied between the inner circumferential surface of the cylinder and the outer circumferential surface of the piston, thereby improving cooling capacity and / or energy efficiency of the compressor.

The invention relates to the technical field of air valve dismounting and mounting equipment, in particular to multifunctional reciprocating compressor air valve dismounting and mounting equipment which comprises a moving trolley, a lifting mechanism is mounted on the upper side of the moving trolley, a first folding arm and a second folding arm are rotatably mounted at the upper end of the lifting mechanism, and a third folding arm is rotatably connected to the tail end of the first folding arm. A hoisting winch is mounted on the upper side of the third folding arm, a steel wire rope is wound on the hoisting winch, a rotating shaft is connected to the tail end of the second folding arm, two parallel connecting rods are vertically arranged on the rotating shaft at intervals, a hydraulic pneumatic supporting rod is connected to the lower connecting rod, and the tail end of the hydraulic pneumatic supporting rod is connected with the lower portion of the rotating shaft. The lifting device is reasonable and compact in structure and convenient to use, achieves lifting through cooperation of the lifting structure and the lifting winch or the connecting rod, is connected through the air valve dismounting device or assists dismounting and mounting of the air valve and related parts, adapts to mounting and dismounting of parts in narrow space, high space and low space, improves the maintenance efficiency and reduces potential safety hazards of operators.

The invention discloses a pre-pressing type two-stroke star-shaped engine, relates to the technical field of engines, and solves the problems that an existing two-stroke engine cannot be in star-shaped layout, and air supply is unstable due to the fact that multiple cylinders share a crankcase. The engine comprises a crankcase, a plurality of cylinders distributed in a star shape, a crankshaft, a piston, a connecting rod, a reciprocating compressor, a carburetor, a one-way valve and the like. When the crankshaft drives the piston to reciprocate, the reciprocating compressor is driven to operate, mixed gas prepared by the carburetor and the one-way valve is compressed by the compressor and then is fed into the crankcase, and the multiple air cylinders are fed into the crankcase through the air inlet holes and the air inlet channels, compressed, ignited and acted by the sparking plug and exhausted through the exhaust holes, and are circulated in sequence. The engine achieves two-stroke star-shaped layout, the number of the air cylinders is not limited by odd and even, the power-to-weight ratio is high, the structure is compact, air supply is stable, and the engine is suitable for scenes with high requirements for the power-to-weight ratio and the structure compactness of the engine.

A rod packing assembly that includes a wiper ring is disclosed. In one embodiment, a rod packing assembly comprises a first ring, a second ring, a third ring, a first biasing member, a second biasing member, and a third biasing member. The third ring has at least one port, and is positioned between the first ring and the second ring. The first ring, the second ring, and the third ring surround a rod and to scrape a surface of the rod. The first biasing member applies a first force to urge the first ring against the rod, and the second biasing member applies a second force to urge the second ring against the rod. The third biasing member applies at least a third force to urge the third ring against the rod. The first and second rings are arranged to apply forces to urge the third ring against the rod.

Disclosed is a reciprocating compressor. The reciprocating compressor can include a housing, a driving motor, a driving shaft, a piston, a cylinder, and a suction muffler, and a refrigerant trapping portion wider than a suction inlet can be provided between an internal space of the housing and the suction inlet of the suction muffler. Thereby, manufacturing costs of the suction muffler can be saved by simplifying the structure of the suction muffler, and vibration and / or noise at the suction muffler can be effectively attenuated by sufficiently securing a muffling space while simplifying the structure of the suction muffler, and the amount of refrigerant suction into the compression chamber can be increased and compressor performance can be improved by increasing the amount of refrigerant suction by the suction inlet.

This invention relates to the field of intelligent fault diagnosis technology, and provides an intelligent fault diagnosis method for reciprocating compressors based on multi-feature fusion, comprising: acquiring dynamometer card data during the operation of the reciprocating compressor and preprocessing it; extracting multi-dimensional features with clear physical meaning from the dynamometer card, including energy, dynamic, geometric, loss, and proportional features; fusing the multi-dimensional features based on an adaptive weight allocation strategy to calculate a comprehensive fault score; combining feature combinations and weight configurations to match a fault mode library and identify the fault type; and determining the fault level based on the comprehensive fault score using fuzzy boundary processing and a dynamic threshold adaptive update mechanism. This method, by constructing a multi-dimensional feature space and integrating physical mechanisms and intelligent algorithms, achieves high-precision, multi-type, and refined fault diagnosis for reciprocating compressors, significantly improving diagnostic accuracy and reducing the risk of false alarms and missed alarms.

A portable machine tool for removing a worn-out liner of a cylinder of a reciprocating compressor includes linear guide means, an axial slide sliding on the guide means, a radial slide sliding on the axial slide, first motor means for driving the axial slide on the guide means, a tool holder unit mounted on the radial slide and equipped with a tool eccentrically arranged with respect to an advancement direction of said axial slide on the guiding means. The machine also includes second motor means for driving the tool integral to the radial slide, first attachment means of the guide means to the front end of the cylinder and second attachment means of the guide means to the back end at the stuffing box side of the cylinder. The attachment means include means for centering the guide means with respect to the longitudinal axis of the cylinder.

The application discloses a kind of floating platform reciprocating compressor fault diagnosis method and device, including for the vibration signal to be treated decomposition obtains IMF component;By index, some orders of IMF containing obvious impact characteristics are screened out;The screened IMF component is filtered respectively, and non-impact component is filtered out;The IMF component after adaptive variable scale morphological filtering is reconstructed to obtain noise reduction signal;Amplify the mutation component in noise reduction signal;Solve the envelope of mutation component, and utilize filter to carry out smooth filtering to envelope line;Peak value detection is carried out to extract the phase feature of impact component in signal;The phase feature of impact is acquired.Diagnosis device includes: acquisition module, processing module, extraction module and diagnosis module, establishes reciprocating compressor fault feature knowledge base, and carries out fault diagnosis according to the impact feature of vibration signal captured by extraction module.And support and guarantee are provided for the predictive maintenance of future offshore platform reciprocating compressor.