271 results about "Reciprocating pump" patented technology

A connecting rod assembly includes a crosshead for coupling a connecting rod to a plunger, the crosshead having a hole extending through the crosshead. The connecting rod assembly also includes a knuckle cage positioned within the crosshead, the knuckle cage extending through the hole and including a cutout to provide access to a passage formed in the knuckle cage. The connecting rod assembly further includes a knuckle positioned within the passage of the knuckle cage, the knuckle having a mounting surface that is substantially planar, the mounting surface coupling to the connecting rod at a mating end with a substantially planar mating end surface.

The invention relates to the technical field of reciprocation pump control, in particular to a closed-loop control motor-driven ball screw reciprocation pump and a control method, and the closed-loop control motor-driven ball screw reciprocation pump is mainly characterized in that an outlet of a fluid end module is connected with a pressure sensor; the pressure sensor, the motor controller, the rotary transformer and the position sensor are electrically connected with the central controller, the central controller is used for outputting a control signal enabling the driving motor to rotate to the motor controller, and the motor controller is used for controlling the driving motor to operate. According to the scheme, a brake is removed, the defects caused by the brake are avoided, in the prior art, no matter whether a brake pad is abraded or the inertia problem of the brake exists, a brake system cannot be achieved in the industry of the reciprocating pump at all, and in the reciprocating pump, the brake pad is not abraded. The speed, the position and the thrust of the reciprocating pump device are accurately controlled in a full-digital manner through the central controller, so that the ball screw reciprocating pump with the structure achieves the purpose of industrial use in the industry.

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 comprises a plurality of struts that form a plurality of open cells between the first ring and the second ring.

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.

An electromagnetic reciprocating pump (1) and an alcohol tester. The electromagnetic reciprocating pump (1) comprises a driving device (10) and a pump body (20). The pump body (20) comprises a flexible housing (22), an accommodating cavity (C3), and a channel (213) in communication with the accommodating cavity (C3). The driving device (10) comprises a cylinder (111), a coil (112), a magnet (121), a first ferromagnetic element (113) and a second ferromagnetic element (114); the coil (112) generates magnetic fields in different directions by changing the current direction so as to drive the magnet (121) in the cylinder (111) to move back and forth in a motion direction; the first ferromagnetic element (113) and the second ferromagnetic element (114) are spaced apart at the front end and rear end in the motion direction of the magnet; the first ferromagnetic element (113) and the second ferromagnetic element (114) can attract the magnet (121), and when the magnet (121) moves to one end and is attracted by one of the first ferromagnetic element (113) and the second ferromagnetic element (114), the magnet (121) is kept at the position; the magnet (121) is used for driving the flexible housing (22) to deform so as to change the volume of the accommodating cavity (C3) to achieve fluid intake and discharge. According to the electromagnetic reciprocating pump (1) and the alcohol tester, different states of the pump body can be maintained, and the structure is simple.

The utility model provides an overflow control device of a booster compressor, which comprises a combined cylinder body, a variable-diameter piston arranged in the combined cylinder body, a gas chamber arranged above the variable-diameter piston, a gas inlet and a gas outlet connected with the gas chamber, a hydraulic oil chamber arranged below the variable-diameter piston, and a reciprocating pump connected with the hydraulic oil chamber through a connecting pipeline. The reciprocating pump cavity, the hydraulic part of the combined cylinder body and the connecting pipeline jointly form a closed hydraulic part, the closed hydraulic part is connected with a pressure control valve, the pressure control valve comprises an oil supply port, an oil outlet and a pneumatic control port, the oil supply port is connected with the closed hydraulic part through a pipeline, and the pneumatic control port is connected with an exhaust port through a pipeline. And hydraulic oil overflowing from the pressure control valve is discharged from the oil outlet. The pressure of the closed hydraulic part can be limited by controlling the opening and closing of the pressure control valve, and the actual overflow pressure can be automatically adjusted according to different exhaust pressures, so that the energy consumption of the system is reduced.

A lubricator package for intermittently delivering a lubricant to lubrication points on packing on a high-pressure reciprocating pump, a frac pump is described. A preferred package includes a large (e.g., 10 gallon) capacity reservoir; a three or five outlet pump; a common manifold receiving oil from the large capacity reservoir and supplying oil or grease to the pumps; a mounting stand supporting the large capacity reservoir and the five outlet pump; and an optional a control package providing low level monitoring of lubricant flow and controlling the pump providing a pump stroke counter or timer.

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 present application relates to a reciprocating pump, in particular to a linkage shaft structure and a reciprocating pump with the linkage shaft structure. The linkage shaft structure comprises a linkage shaft extending into a containing cavity, the linkage shaft comprises two coaxially arranged linkage shaft units, the inner ends of the linkage shaft units extend into the containing cavity and are fixed with first telescopic bodies made of flexible material, the outer ends of the linkage shaft units are always located outside the containing cavity and are used for connecting reciprocating moving parts, the first telescopic bodies comprise first bottoms located on the axial sides of the linkage shaft units, and the first bottoms of the two first telescopic bodies are located between the two linkage shaft units and close to each other. The linkage structure of the present application can avoid the contact between the linkage shaft and the cavity wall of the containing cavity, avoid the sliding friction between the linkage shaft and the support structure, thereby as far as possible to avoid the generation of powder or debris, reduce the pollution to the pumped fluid; and can improve the operation efficiency of the reciprocating pump.

A pump for pumping mud or slurry comprising: a housing (5) with a working chamber (2,4) connected to fluid inlet (6) and outlet lines (6,13), a reciprocable pumping member (1), an accumulator (39,44) fluidly connected to the working chamber (2,4) via a damper conduit (37), a controlled valve (48,49,50,53) arranged in the damper conduit (37). There is also provided a method for dampening of pressure fluctuations in a pump, comprising: operating the pump to pump a mud or a slurry; providing one or more accumulators (39,44) fluidly connected to a working chamber (2,4) of the pump; operating a controlled valve (48,49,50,53) to selectively connect and disconnect the one or more accumulators (39,44) to and from working chamber (2,4), and dampening pressure fluctuations in the working chamber (2,4) which have a frequency higher than a reciprocating speed of the pump.

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 invention discloses a long-stroke fracturing pump power end and a fracturing pump, and relates to the technical field of reciprocating pumps, and the power end comprises an input shaft assembly, a crankshaft gear, a crankshaft assembly, a rocker, a subdivision sliding block, a crosshead, an integral sliding block, a pump body, a sliding shoe and a rocker shaft. External power drives the input shaft assembly to rotate, the input shaft assembly drives the crankshaft assembly to rotate through the crankshaft gear so as to drive the subdivision sliding block to slide, the subdivision sliding block drives the rocker to swing in a reciprocating mode from the middle of the rocker, and the integral sliding block on the lower portion of the rocker drives the crosshead to do synchronous reciprocating motion. The stroke of the crosshead is far greater than the rotation diameter of the crankshaft due to the displacement amplification effect of the rocker, so that the long stroke of the fracturing pump is realized; the crankshaft is arranged right above the sliding shoe, a connecting rod in a traditional fracturing pump is omitted, the stroke of the fracturing pump is increased, but the length is reduced, and the weight is not increased; the fracturing pump power end and the fracturing pump are long in stroke, low in stroke frequency, long in service life of quick-wear parts, compact in structure and convenient to assemble and disassemble.

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.

Roller tappet (40) for a pump (1), in particular a high-pressure pump (1) for a high-pressure injection system for a motor vehicle for supporting a reciprocating pump piston (12) on a drive shaft (14), comprising a tappet body (8) for supporting a roller (46), a hollow-cylindrical roller (46), a bearing pin (52) arranged within the hollow-cylindrical roller (46) for supporting the roller (46), such that a radial bearing gap (38) is formed between the roller (46) and the bearing pin (52), a first lubricant channel (11a) formed in the tappet body (8) for supplying a lubricant to a first axial end region (29) of the roller (46) and / or the bearing pin (52), a second lubricant channel (11b) formed in the tappet body (8) for supplying a lubricant to a second axial end region (31) of the roller (46) and / or the bearing pin (52),wherein the roller tappet (40) comprises a movable actuator (2) for changing the flow cross-sectional area of the first and / or second lubricant channel (11a, 11b) in order to achieve a reliable supply of the volume flow (Q1) of lubricant conducted through the first lubricant channel (11a) and the volume flow (Q2) of lubricant conducted through the second lubricant channel (11b).

A sealing ring includes a planar upstream surface, a tapered downstream surface disposed opposite of the planar upstream surface, and an arcuate inner surface extending convexly from the planar upstream surface toward the tapered downstream surface. The arcuate inner surface is configured to engage with a reciprocating element of the 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.

An assembly for a reciprocating pump is made entirely from a polymer of the same grade, preferably polypropylene or polyethylene (at its relatively harder grade), which matches all other components in the pump. The assembly has a rod that moves in cooperation with an actuation mechanism of the pump; and a retainer coupled to the dispensing channel defined by the rod and forming an inlet to the dispensing channel. A coaxially received sliding seal is captured around the rod and holder and is free to move only during downward actuation to open the flow path of the dispensed fluid. Wing members on the periphery of the retainer flex to ensure that the assembly travels with minimal friction while also opening and sealing the inlet as desired / required.

In order to monitor the flow of a handled liquid without using a detection device that comes into contact with the liquid in a reciprocating pump, a reciprocating pump (1) according to the present invention comprises: a diaphragm (6); a pump chamber (21a); a plunger (5); an electromagnetic actuator (41); an actuator control unit (311); an acquisition unit (312) that acquires, as a specific current value, at least a control current value when the plunger is located at a specific position among control current values of the electromagnetic actuator; a storage unit (35) that stores, as a reference current value, at least a normal control current value when the plunger is located at the specific position among normal control current values which are control current values during normal times; and a determination unit (313) that determines whether a suction state and / or a discharge state is normal or abnormal, on the basis of the specific current value and the reference current value. The specific position is a position corresponding to a point at which, when an abnormality exists, a characteristic change corresponding to the abnormality appears in the current value waveform of the control current value for one stroke of the plunger.

The invention provides a viscera guiding and conveying pump which comprises a supporting frame, a mounting frame is arranged on the supporting frame, lifting parts used for driving the mounting frame to ascend and descend are arranged on the periphery of the supporting frame, and supporting buffering parts are arranged on the periphery of the bottom face of the supporting frame. Supporting plates are arranged at the left end and the right end of the upper surface of the mounting frame, a guiding and conveying tank is arranged on the supporting plates, a reciprocating pump is mounted at the right end of the mounting frame through a mounting part, a supporting seat is arranged on the upper surface of a left transverse plate on the mounting frame, the feeding end of the guiding and conveying tank is connected with a feeding pipe, and a feeding hopper is arranged on the upper surface of the feeding pipe. A pushing piece used for pushing materials in a feeding pipe into the guiding and conveying tank is arranged on the supporting base, and the feeding end of the reciprocating pump is connected with the discharging end of the guiding and conveying tank; the device can achieve viscera conveying, is stable and adjustable in structure, achieves buffering and damping, achieves automatic control and is convenient to clean and maintain.

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.

The invention relates to a fluid end with transition surface geometry. A fluid end of the reciprocating pump includes a plurality of apertures formed therein, and adjacent apertures intersect one another. An intersection corner is formed at the intersection of two adjacent holes, and the corner is a position where high stress concentration occurs during operation of the reciprocating pump. The at least one aperture includes a first tapered portion and a second tapered portion. The first tapered portion increases a cross-sectional area of the bore toward the intersecting bore to reduce stress concentration on the intersecting corner. The second tapered portion reduces the cross-sectional area of the bore to provide a shoulder having an extended arc length and forming a groove. The extended arc length of the shoulder increases the available surface area to secure the valve holder within the recess.