146 results about "Reciprocating pump" patented technology

A mount plate for removably connecting a fluid end of a reciprocating pump to a power end for a reciprocating pump includes a first set of openings and a second set of openings, each of which extend through the main body. The first set of openings are configured to receive a first set of couplers that couple the mount plate to a front of the power end. The second set of openings are configured to receive a second set of couplers that couple the mount plate to a fluid end in a spaced relationship. The mount plate may also include a third set of openings that extend through the main body and are configured to receive pony rods of the power end.

The application provides a cast power end frame including a pair of end plates and an outer casing extending between the end plates and defining an interior therein; a crank shaft housing extending between the end plates and within the interior of the outer casing, and a plurality of crosshead tubes, each crosshead tube extending substantially perpendicular to the crank shaft housing, wherein the outer casing, crank shaft housing, and crosshead tubes are cast as a single part comprising steel comprising a carbon constituent of 0.06%-1.99% carbon.

The invention belongs to the technical field of ultrahigh-pressure reciprocating pumps, and particularly relates to a method using an ultrahigh-pressure large-flow reciprocating pump fluid end strength testing device for strength testing in a low-energy-consumption state. The device comprises a pulsation pressurizing part capable of performing piston type reciprocating stroke action, one end of a test pipeline is communicated with a high-pressure cavity of the pulsation pressurizing part, the other end of the test pipeline is communicated with a liquid outlet of a pump cylinder of a reciprocating pump to be tested, and a set of optimization algorithm is matched. The method is simple and efficient in calculation, so that the actual working state of the original reciprocating pump can be simulated and restored under low power while the reciprocating pump to be tested is highly matched.

A power end includes a monolithic core with a base having a surface configured to mount to a fluid end of the reciprocating pump and a plurality of extensions integral to the base. Each extension of the plurality of extensions includes a ring portion that defines an opening configured to receive a crankshaft of the reciprocating pump. The power end also includes a plurality of plates separate from the monolithic core. Each plate of the plurality of plates extends between a pair of adjacent of extensions of the plurality of extensions to enclose the monolithic core.

The utility model discloses a film scratching instrument, belongs to the field of detection equipment, and is used for solving the problems of how to improve the conveying stability of a marker solution and the continuity of spraying lines. The film scratching instrument comprises a tandem type double-plunger reciprocating pump, a film scratching head and a liquid conveying pipeline. The tandem type double-plunger reciprocating pump is provided with a liquid inlet and a liquid outlet, the liquid inlet is used for inputting a marker solution, the liquid outlet is used for outputting the marker solution, the film scratching head is provided with a spray head, and the spray head is connected with the liquid outlet through a liquid conveying pipeline and used for spraying the marker solution onto test paper. Due to the fact that the tandem type double-plunger reciprocating pump can provide stable pressure and flow, compared with a traditional manual spraying pump or a single-plunger pump, a marker solution sprayed to test paper through film scratching is more uniform in distribution, the continuity of spraying lines is better, and the stability of spraying quality is improved.

A system for distributing a fluid flow across multiple inlet passages of a reciprocating pump includes an auger configured to be positioned into a suction manifold fluidly coupled with the multiple inlet passages of the reciprocating pump. The auger defines an axis, a first axial end, a second axial end, and a helical body extending between the first axial end and the second axial end. The auger is receivable into the suction manifold such that the first axial end is positioned to receive the fluid flow and force the fluid to move along a helical path defined by the helical body to introduce an angular momentum into the fluid flow. The system includes an end flange fixedly coupled to the second axial end proximate the opening. The system further includes a clamp arrangement for the auger wherein the clamp arrangement is movable between a clamped state and an unclamped state.

The application discloses a kind of detection structure of reciprocating pump cumulative flow, including the lower sleeve in reciprocating pump and with the transmission connection of worm gear in reciprocating pump, the inner hole lower end of lower sleeve is equipped with bearing, the lower side of lower sleeve is spaced and is equipped with bearing cover, the side of bearing cover towards lower sleeve is raised and forms boss in the inner hole of bearing along the center line direction of lower sleeve, boss is installed in the inner hole of bearing and is rotatably connected with lower sleeve by bearing, one or more induction blocks are fixedly connected on the lower end surface of lower sleeve, when the number of induction block is multiple, multiple induction blocks are evenly spaced and arranged around the center line direction of lower sleeve, inductive sensor is installed in the position of bearing cover corresponding lower end surface of lower sleeve, inductive sensor can inductively detect induction block, counter module is provided outside bearing cover, inductive sensor is electrically connected with counter module.The application also discloses a kind of method for detecting the cumulative flow of reciprocating pump using the above structure.

Typically, fluids used in fracking operations erode valve seats in the fluid end of the reciprocating pump. Thus, these valve seats must frequently be replaced by new valve seats. Accordingly, a remanufacturing process is disclosed that successively cleans and / or grinds manually or mechanically at least the carbide inserts from used valve seats until the inserts are reusable. This reduces material costs and promotes efficiency and sustainability.

The utility model relates to the technical field of gold ore analysis and test pretreatment, and discloses solid sample and reagent rapid mixing equipment which comprises a tank body, a first threaded mounting seat is arranged at the top of the tank body, a tank cover is in threaded connection in the first threaded mounting seat, a fixing pipe is fixedly connected in the tank cover, and a fixing sleeve is fixedly connected to the bottom of the fixing pipe. A fixed sleeve is arranged in the tank body, a sliding sleeve is connected to the outer wall of the fixed sleeve in a sliding manner, a lifting pipe is fixedly connected to the bottom of the sliding sleeve, and a second threaded mounting seat is arranged at the bottom of the lifting pipe. The solid sample is placed in the circulating flow channel in the tank body, so that the dissolution rate between the solid sample and the solvent is increased through rapid flowing between the solvent and the solid sample, meanwhile, uniform dissolution of the solid sample in the solvent is achieved through circulating flowing of the solvent, and the practicability of the equipment is improved.

A modular reciprocating pump rod column assembly and system are presented. The present disclosure provides the state of the art with a hydraulically actuated extension rod assembly with a piston and a hydraulically actuated extension rod assembly with a plunger. The rod column assembly that can be converted to plunger and vis-versa. The hydraulic system provides for spring compression based on a hydraulic piston installed inside the primary extension rod. As hydraulic pressure is applied through a port located in the end cap, it is fed through a cross port drilled in the extension rod assembly to the blind end of the internal piston. When pressurized the piston moves forward, compressing the springs against the end cap when in turn extends the center shaft, relieving tension on the forward and rear rod column pins. Releasing the hydraulic pressure allows the springs to extend, retracting the center shaft.

A crank arrangement method for a crankshaft, a device, a storage medium, and a program product. The method comprises: acquiring structural feature data of a target crankshaft having a plurality of crank structures (S101); on the basis of the structural feature data, determining a plurality of crank pin arrangement sequences of the target crankshaft (S102); on the basis of the structural feature data, establishing a motion model, wherein the motion model is used for describing a coordinated motion process of the crank structures, connecting rods corresponding to the crank structures, and piston structures in cylinders (S103); on the basis of the motion model, determining bearing block reaction force data, inertia moment data, and suction pipe flow rate data for the crank pin arrangement sequences, wherein the suction pipe flow rate data is used for describing a sectional flow rate of a main suction pipe corresponding to crank pins (S104); and on the basis of the bearing block reaction force data, the inertia moment data, and the suction pipe flow rate data, screening the crank pin arrangement sequences for a target crank arrangement sequence (S105). The method improves the product performance of a seven-cylinder reciprocating pump.

The invention discloses a leak-free reciprocating pump device for conveying a light hydrocarbon medium, which comprises a pump body, a box body and a plunger, and a plunger operation cavity, a liquid inlet valve and a liquid discharge valve are arranged in the pump body. And a stepped depressurization recovery module and an active hydraulic blocking and sealing module are sequentially arranged in the box body. The stepped depressurization recovery module achieves step-by-step depressurization of leaked media through two stages of sealing assemblies and a leakage collection cavity between the two stages of sealing assemblies, and the media are guided back through a backflow one-way valve. The active hydraulic blocking and sealing module injects lubricating oil higher than medium pressure into the lubricating oil cavity to form hydraulic sealing, and the active hydraulic blocking and sealing module and the rear end sealing assembly jointly block medium migration. And the lubricating oil cavity is connected with an external oil station to form a circulating cooling loop. The two modules cooperate to form a two-way blocking closed-loop sealing system, and the problems of leakage and gasification in light hydrocarbon medium high-pressure conveying are effectively solved.

The utility model discloses a high-polymer repairing device for a high-pressure reciprocating pump valve body of a dephosphorization water system, and relates to the technical field of repairing of the high-pressure reciprocating pump valve body of the dephosphorization water system, the high-polymer repairing device comprises a mold and a rotating shaft, the mold is used for being placed in a valve body to be repaired and is attached to the inner wall of the valve body; the rotating shaft is used for penetrating through the center of the die and is detachably and fixedly connected with the die, the die can be driven to rotate by rotating the rotating shaft so as to press the polymer repairing material into the eroded part of the valve body, the structure is simple, use is convenient, the valve body repairing efficiency of the reciprocating pump valve is effectively improved, and the repairing quality is effectively guaranteed.

The present application relates to the technical fields of reciprocating pump, and discloses a carbon fiber corrosion-resistant vacuum pump with convenient heat dissipation, comprising: a reciprocating pump body, which comprises a pump body, a crank connecting rod mechanism, a piston, an air inlet valve and an air outlet valve, the pump body is provided with an air inlet cavity for accommodating the crank connecting rod mechanism, and a gas exchange cavity for accommodating the piston, the air inlet valve and the air outlet valve; a heat dissipation execution module, which comprises a first heat dissipation module and a second heat dissipation module. The present application realizes the differentiated and accurate heat dissipation of different working areas of the vacuum pump by setting the heat dissipation execution module, the temperature sensing module and the control module; wherein the two heat dissipation modules in the heat dissipation execution module act on the gas exchange cavity and the movable cavity respectively, cooperate with the heat dissipation fan and the air volume distribution mechanism, and can adjust the heat dissipation intensity and direction according to the actual demand; the control module adaptively selects the appropriate heat dissipation mode according to the temperature data and the preset threshold value, so as to effectively reduce the energy consumption while ensuring the normal operation of the equipment.

An internal combustion engine system according to the present invention comprises: an internal combustion engine including a combustion chamber, an engine piston demarcating the combustion chamber, an engine crankshaft, an engine connecting rod connecting the engine piston to the engine crankshaft, and an engine crankcase accommodating the engine crankshaft and the engine connecting rod; a reciprocating pump including a fuel gas flow path connecting the combustion chamber to a fuel gas supply source, a compression chamber, and a pump piston demarcating the compression chamber, the reciprocating pump pressurizing fuel gas in the fuel gas flow path; a pump crankshaft supported by the engine crankcase and connected to the engine crankshaft; and a pump connecting rod connecting the pump piston to the pump crankshaft.

The invention provides a diaphragm breakage detection device and a reciprocating pump device, which do not cause malfunction even if gas components contained in bubbles generated in a pump chamber penetrate through a diaphragm. This diaphragm breakage detection device (3) detects breakage of a diaphragm (25) of a reciprocating pump (2). A diaphragm breakage detection device is provided with: a fluid path (FP) that can communicate with a through-hole (24a) of a peripheral ring (24); a pressure detector (8) that detects the pressure in the fluid path; an exhaust valve (GV) connected to the fluid path; and a discharge path (65) connected to the exhaust valve. An exhaust valve is provided with: a valve body (9); a valve chamber (Rv) that accommodates the valve body; and a valve seat surface (42b) disposed above the valve body. The discharge path opens in the valve seat surface. The valve body can move between a valve closing position (P2) and a valve opening position (P1), and is located at the valve opening position when the diaphragm is not damaged. When the valve body is not in the closed valve position, the valve chamber communicates with the fluid path and the discharge path.

The utility model relates to the technical field of reciprocating pumps, and provides a three-cylinder reciprocating pump which comprises a shell with a through hole. The fluid end assembly is arranged on one side of the shell; the crank-link mechanism is arranged on the shell, and the crank-link mechanism comprises a power input end and a power output end; the driving shaft is rotationally arranged on the shell and is in transmission connection with the power input end; the pull rod is arranged in the shell in a reciprocating sliding manner; one end of the pull rod is arranged on the power output end; one end of the displacement piece penetrates through and is slidably arranged on the fluid end assembly, and the other end of the displacement piece is arranged at the other end of the pull rod. By means of the technical scheme, the problems that in the prior art, a reciprocating pump is large in size, heavy in weight, low in rotating speed, large in operation noise and the like are solved.

To provide a washing machine capable of simply and efficiently washing powder and granular material such as nickel powder or slurry thereof with a small work load.SOLUTION: A filtering and washing machine for powder and granular material represented by nickel powder suitably having a mean particle size of 200nm or less produced by a liquid phase method or a slurry thereof includes a Buchner funnel 1, a positive displacement pump 4 suitably including a reciprocating pump such as a diaphragm pump connected to an extraction nozzle of the Buchner funnel 1 via a pipe 3, and a flexible hose 5 represented by a blade hose connected to a discharge side of the positive displacement pump 4, and is preferably mounted on a truck 6.SELECTED DRAWING: Figure 1

The utility model discloses a reciprocating pump performance testing mechanism, and belongs to the technical field of petroleum drilling and production equipment. Comprising a driving device, at least three fixed manifolds with different bearing pressures, a movable manifold, a low-pressure manifold, a cooling unit, a circulating water tank and a suction manifold, the driving device is used for driving the reciprocating pump; the movable manifold is connected with a discharge port of a reciprocating pump to be tested, and the movable manifold can be communicated with the input end of any one of the fixed manifolds; the output end of each fixed manifold is communicated with the inlet of the cooling unit through a low-pressure manifold; an outlet of the cooling unit communicates with the circulating water tank; and the other end of the suction manifold is communicated with a suction inlet of the reciprocating pump. According to the utility model, the simulation test of different working environments of reciprocating pumps of different models can be realized under a simple structure, and the maximum test pressure can reach 140MPa, so that the test requirements of various reciprocating pumps can be met.

A power end frame of a reciprocating pump includes a first ring, a second ring, and a plurality of connections extending between the first ring and the second ring. The first ring, the second ring, and the plurality of connections are integral with one another, and the plurality of connections includes a plurality of struts that form a plurality of open cells between the first ring and the second ring.

This invention discloses a method and apparatus for micro-lubrication of magnetic shear-thickening nanofluid, belonging to the field of micro-lubrication and cooling in machining. The method is based on a micro-lubrication system, which includes an air pump, a pressure valve, a Rank-Hillsch vortex tube, a reservoir, a reciprocating pump, a flow controller, and a micro-lubrication nozzle. The reciprocating pump pressurizes and delivers the magnetic shear-thickening fluid from the reservoir to the micro-lubrication nozzle. Compressed air, after being pressurized by the pressure valve, enters the vortex tube for diversion. The hot airflow at the hot end of the vortex tube preheats the fluid in the reservoir, shear-thinning it to improve its flowability. The low-temperature cold air at the cold end mixes with the fluid within the nozzle. Under the influence of the built-in magnetic field in the nozzle, a low-temperature nano-atomized particle cluster spray is formed and directed towards the machining area. Upon contact with the workpiece, the spray transforms into the magnetic shear-thickening fluid, forming a lubricating film at the tool-workpiece interface, achieving efficient cooling and lubrication and improving machining quality.

The application relates to the technical field of volume pumps, in particular to an improved reciprocating pump which comprises a power unit and a hydraulic unit; the improved reciprocating pump further comprises a compensation unit which is arranged on the hydraulic unit and is used for compensating the liquid suction effect of a far-end cylinder, the compensation unit comprises a compensation frame arranged below the hydraulic unit, a plurality of compensation cylinders are mounted on the upper end of the compensation frame and are in communication, a pushing part is arranged in the compensation cylinder, and a feeding head is mounted on the end of the compensation frame. The compensation unit adopted by the application cooperates with the driving unit, can effectively fill the viscous medium into the plurality of cylinders of the hydraulic unit, avoids the phenomena of multiple-cylinder liquid stealing, suction flow deviation and far-end cylinder cavitation during the use of the reciprocating pump, avoids the damage of core components such as pump cylinders and piston rods, ensures the uniformity of the liquid suction of the reciprocating pump, and greatly prolongs the service life of the core vulnerable components.

The utility model belongs to the technical field of filtration or the field of synthetic ester purification, and particularly relates to a high-viscosity oil filtering device. In the high-viscosity oil filtering device, a reciprocating pump is selected as a liquid pressurizing device, the reciprocating pump is divided into a plurality of branch pipelines with a piston motion function, and the branch pipelines can jointly or independently carry out piston motion. The pressurization mode of the high-viscosity oil filtering device is changed from a gas pressurization mode to a liquid pressurization mode, the liquid compression coefficient is small, the pressure applied by the reciprocating pump can immediately act on a crude product, and the pressure intensity can be increased greatly in a short time; meanwhile, the pressure intensity of the filtering device can be rapidly reduced when leakage occurs, synthetic ester products cannot be splashed massively, and the safety coefficient is increased; besides, on the premise that the applied external force is not changed, the stressed area can be reduced to provide higher pressure by selecting fewer first pistons, so that the filtering speed of crude products such as malate or benzoate plasticizer is further increased.

The invention discloses a reciprocating pump buffer floating structure for conveying high-temperature media, and particularly relates to the field of reciprocating pump buffers.The reciprocating pump buffer floating structure comprises a reciprocating pump body, an inlet buffer is arranged on one side of the reciprocating pump body, and an outlet buffer is arranged on the side, away from the inlet buffer, of the reciprocating pump body; floating assemblies are arranged on the outer sides of the inlet buffer and the outlet buffer, lubricating assemblies are arranged on the inner sides of the floating assemblies, dustproof assemblies are arranged on the outer sides of the floating assemblies, each floating assembly comprises an extending shaft fixedly connected to the outer side of the inlet buffer, and one end of each extending shaft is fixedly connected with a smooth section. By arranging the floating assembly, firm support can be provided for the buffer in the vertical direction, the buffer is allowed to freely expand in the horizontal direction, and when a pipeline is heated to expand, the buffer can freely move in the front-back direction and the left-right direction designed by the floating support, so that generation of thermal stress is fundamentally avoided; and a pipeline system and buffer equipment are protected.

The invention relates to the technical field of displacement pumps, in particular to an improved reciprocating pump which comprises a power unit and a hydraulic unit. The improved reciprocating pump further comprises a compensation unit, the compensation unit is arranged on the hydraulic unit and used for compensating the liquid suction effect of the far-end cylinder, the compensation unit comprises a compensation frame arranged below the hydraulic unit, the upper end of the compensation frame is provided with and communicates with a plurality of compensation cylinders, and pushing parts are arranged in the compensation cylinders. And a feeding head is mounted and communicated with the end part of the compensation frame. According to the reciprocating pump, the adopted compensation unit is matched with the driving unit, the multiple cylinders of the hydraulic unit can be effectively and actively filled with viscous media, the phenomena of multi-cylinder liquid grabbing, suction bias flow and far-end cylinder cavitation during use of the reciprocating pump are avoided, damage to core components such as the pump cylinder and a piston rod is avoided, the liquid suction uniformity of the reciprocating pump is guaranteed, and the service life of the reciprocating pump is prolonged. And the service life of a core damageable part is greatly prolonged.

A method of manufacturing a fluid end of a reciprocating pump, the fluid end having a main body and a flange extending from the main body, includes positioning a cutting tool between a distal surface of the flange and the main body of the fluid end so that the cutting tool can form an access area in the flange, forming, with the cutting tool, a first arcuate cutout of the access area, and forming, with the cutting tool, a second arcuate cutout of the access area, the second arcuate cutout being discontinuous with the first arcuate cutout so that the access area includes multiple radii.

The invention discloses an online testing system for full life cycle performance decline of a reciprocating pump, and particularly relates to the technical field of reciprocating pump state monitoring. A dynamic feature matching module identifies working conditions and outputs a fault feature set; the weak signal enhancement module enhances and extracts nonlinear weak fault features from the original signal and outputs an enhanced feature signal; the coupling and decoupling analysis module performs multi-source decoupling on the enhanced signal and outputs an independent fault characteristic value sequence and a fault propagation path; the full life cycle mapping module generates a health state quantitative index according to the sequence and the path; the reference alignment module carries out dynamic space-time reference alignment and outputs an aligned track geometric data set; the dynamic feature matching module adapts to working condition changes, early weak faults are extracted through the weak signal enhancement module, multi-cylinder interference is separated through the coupling decoupling and mapping module, the health state is quantified, and online testing of full-life periodic performance decline of the reciprocating pump is achieved.

The reciprocating pump comprises two sealing deformation pieces and a cooperation assembly, one of the two sealing deformation pieces is divided into a first liquid chamber and a first air chamber in the reciprocating pump, and the other one of the two sealing deformation pieces is divided into a second liquid chamber and a second air chamber in the reciprocating pump. The reciprocating pump is characterized by further comprising an air inlet flow path, an auxiliary air path, a shuttle valve, a first pilot valve and a second pilot valve, the pilot valve of a mechanical structure is used for tracking and monitoring the deformation state of the sealing deformation part, and the pilot valve and the shuttle valve are associated through the auxiliary air path; selective communication between the air source and the first air chamber and the second air chamber is achieved through the shuttle valve of a mechanical structure, alternate liquid inlet and liquid outlet of the first liquid chamber and the second liquid chamber are achieved, the overall structure is simple, a high-precision electric control detection sensor does not need to be used, cost is low, precision is high, and the precision requirement of pneumatic control is met.

This invention relates to the field of reciprocating pump testing, specifically a jet energy dissipator and an adjustable pressure ultra-high pressure reciprocating pump testing system. The jet energy dissipator includes an inner sleeve through which the jet passes. One end of the inner sleeve is coaxially connected to a high-pressure water inlet via a throttling nozzle, and the other end is connected to a low-pressure water outlet. Energy dissipation cylinders are evenly spaced along the axial direction within the inner sleeve to divert the fluid. Each energy dissipation cylinder includes a jet cylinder coaxially arranged with the inner sleeve. Diverting blades are evenly arranged circumferentially on the outer wall of the jet cylinder. The inner sleeve, the jet cylinder, and the diverting blades enclose and form multi-component diversion cavities. This invention provides a jet energy dissipator that reduces the velocity of the high-speed water jet during ultra-high pressure reciprocating pump testing, significantly eliminates jet kinetic energy, avoids damage to the experimental system from the high-speed jet, improves experimental measurement accuracy, and ultimately achieves pressure build-up and precise pressure regulation during ultra-high pressure pump testing.

The invention relates to the field of reciprocating pump equipment, and discloses a horizontal reciprocating pump structure with conical surface positioning, which comprises a filler box, a plunger and a pump body, the plunger is arranged in the filler box, the outer wall of the filler box is provided with a filler pressing plate, the filler pressing plate is provided with a plurality of through holes, each through hole is internally provided with a stud, and the outer wall of the pump body is provided with threaded holes in one-to-one correspondence with the through holes. The stud can be in threaded connection with the threaded hole, a conical groove is formed in the outer wall of the pump body, a guide groove is formed in the inner wall of the pump body, the conical groove is communicated with the guide groove, the plunger can penetrate through the conical groove and the guide groove, and a circular truncated cone is arranged at one end of the stuffing box and can be in butt joint with the conical groove; automatic centering during assembly can be achieved by means of the self-centering characteristic of the conical surface, high concentricity of the pump body and the stuffing box can be guaranteed without relying on extremely small clearance fit, the conical surface has good assembly guidance quality, the clearance is large before the pump body is assembled in place, a worker can assemble the pump body conveniently, and the assembly efficiency is improved. The problem that cylindrical male and female seam allowances are small in gap and difficult to assemble is solved.