368 results about "Reciprocating pump" patented technology

A sealing assembly for a fluid end of a reciprocating pump is installable within a segment of a casing of the fluid end and is arranged to form a seal with the segment. The sealing assembly includes a closure element and a seal element. The closure element has a sealing portion with a lateral surface that faces an interior wall of the segment of the fluid end. The seal element is sized to be installed around the closure element and includes a repositionable seal. The repositionable seal is movable axially with respect to the closure element so that the repositionable seal can be positioned in multiple sealing positions.

A sealing assembly for a fluid end of a reciprocating pump is installable within a segment of a casing of the fluid end and is arranged to form a seal with the segment. The sealing assembly includes a closure element and a seal element. The closure element has a sealing portion with a lateral surface that faces an interior wall of the segment of the fluid end and that includes a single groove. The seal element is sized to be installed in the single groove and includes a repositionable seal. The repositionable seal is movable axially within the single groove so that the repositionable seal can be positioned in multiple sealing positions.

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.

A reciprocating pump particularly well suited to dispensing oils, creams, and other viscous fluids is contemplated. All components of the pump are fabricated from a single polymer, such as polypropylene or high density polyethylene. The stem of the pump includes a three-piece sealing assembly with a piston that floats in response to the reciprocating action of the pump so as to selectively open or seal the dispensed fluid flow path, as well as return air provided to the internal volume of the container to which the pump is attached.

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 plate and a ring configured to couple to the plate in an assembled configuration of the power end frame. The ring and the plate cooperatively define a compartment of an interior of the power end frame configured to enclose a crankshaft of the reciprocating pump, the ring includes a base surface and a flange extending from the base surface such that an interface surface of the flange is offset from the base surface, the base surface faces the compartment of the power end frame, and the interface surface is configured to abut the plate in the assembled configuration.

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 modular stuffing box for a reciprocating pump, and in particular, an externally mounted modular stuffing box. The modular stuffing box includes three or more sections that can be disassembled in individual sections. Being able to disassemble the sections allows for only the damaged section or sections requiring repair or removal to be replaced, thereby eliminating the need to remove or replace all of the sections of the stuffing box. The overall expenses are reduced and the ease of repair in the field is increased, because the materials and sections of the stuffing box that are in good condition and do not require repair can be reused as part of the stuffing box.

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.

A locking collar for a reciprocating pump is contemplated. The collar remains affixed to the pump to avoid the creation of unwanted waste, while simultaneously providing selectively uplocking. The collar includes axial one or more axial stoppers that cooperate with a peripheral stopper on the closure cap.

The utility model relates to the field of vegetable protein liquid production, and discloses a high-pressure double homogenizing device for vegetable protein liquid production, which comprises a plunger reciprocating pump system, a double homogenizing mechanism, a base and a shell. The plunger reciprocating pump system and the double homogenizing mechanism are arranged on the base and the shell; and materials are pressurized by the plunger reciprocating pump system and are conveyed into the double homogenizing mechanism to be homogenized. The plunger reciprocating pump system comprises a material feeding port, a plunger, a power mechanism, a pump body, a pressure regulating valve set and a material discharging channel. The double homogenizing mechanism is composed of an impact homogenizing unit and a convection collision homogenizing unit. The impact homogenizing unit is composed of an impact homogenizing feeding channel, an impact valve seat, a homogenizing valve element, an impact ring, an operating mechanism and a conical pressurizing channel. And the convection collision homogenizing unit comprises a convection homogenizing feed port, an interaction accommodating cavity and a convection homogenizing discharge port. The interaction cavity is provided with a flow dividing channel, an interaction channel and a collision cavity.

The utility model discloses a bidirectional driving reciprocating pump, and belongs to the technical field of reciprocating pumps, the bidirectional driving reciprocating pump comprises a pump body, a mounting plate and a base, the pump body is mounted at the top of the mounting plate, the top of the base is fixedly connected with a protection box, and a stabilizing assembly is arranged in the mounting plate; the device is novel in design and ingenious, a lifting block is driven by the telescopic end of an electric telescopic rod to move downwards, at the moment, a sliding block is driven by a connecting plate to move in the direction of a pump body in a sliding rail, fixing blocks are made to get close to the pump body in a movable groove till the fixing blocks get close to the outer portion of the pump body, and the periphery of the pump body is enclosed through the four fixing blocks; and by reinforcing the stability of the pump body during use, the conditions of shaking and shifting of the pump body under the condition of large impact force are avoided, so that the condition that the pump body is reinforced and fixed is reduced, the working efficiency of the pump body is improved, and the practicability of the device is greatly improved.

The utility model relates to the technical field of sealing elements, and discloses a petroleum drilling reciprocating pump following type sealing device which comprises a piston and an annular plate, the annular plate is tightly attached to the surface of the end face of the piston, the annular plate is fixedly installed on the surface of the piston through bolts, the side edge of the annular plate is fixedly connected with a scraping ring through a connecting rod, and the scraping ring is parallel to the surface of the annular plate. Three annular grooves are formed in the outer circle of the piston in a surrounding mode, metal rings are clamped in the annular grooves, and a plurality of through holes are evenly formed in the positions, among the annular grooves, of the surface of the piston and communicate with the interior of the piston. According to the technical scheme, the scraping ring is fixed to the end face of the piston, the outer circle of the scraping ring is attached to the inner surface of the cylinder body, petroleum adhering to the interior of the cylinder body is scraped off by the scraping ring in the movement process, then the piston containing the metal rings passes through the scraping ring, and lubricating oil can act on the side edge of each metal ring through the through holes, so that the service life of the piston is prolonged. A good lubricating effect can be achieved, abrasion is reduced, and the service life is ensured.

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 present invention relates to the technical field of reciprocating pumps, and proposes a reciprocating pump lubrication system and an application method thereof, including a base, a reducer, a crankcase, a piston pump box and an oil pipeline, wherein the base includes a fixing frame, two connecting pipes, a plurality of oil tanks, a straight pipe and a control valve; the straight pipe is arranged on the oil tank through and through; the control valve is fixedly arranged on the straight pipe; the reducer, the crankcase and the piston pump box are all fixedly arranged on the oil tank. The present invention can reduce the occupied space of the reciprocating pump and protect the oil tank by integrating the oil tank into the base and installing other components on the oil tank. By arranging a plurality of oil tanks and straight pipes, not only can the number of oil tanks be selected according to the amount of lubricating oil required by the reciprocating pump, but also the excess oil tanks can be used to load and replace the lubricating oil, and the lubricating oil can be quickly replaced, thereby improving the convenience of using the reciprocating pump.

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.

A downhole pump used for a reciprocating pump includes a barrel and a plunger. The barrel couples to a tubing string and has a standing valve. The plunger couples to a rod string and has a traveling valve. One or both of the valves can include an assembly comprising a housing and an insert. The insert allowing for flow therethrough has a ball stop and a ball passage. Positioned in housing, one end of the insert engages a tapered sidewall in the housing. The insert is secured with metallic material metallurgically affixed between the insert and the housing. For example, brazing material can be brazed at the end of the insert to metallurgically affix the insert in the passage. A ball is positioned in the insert, and a seat is positioned adjacent an end of the insert. The assembly is then incorporated into components of the pump.

The present invention provides a cryogenic reciprocating pump testing method and system for multiple working fluids with a wide flow range, which relates to the field of new energy. The method connects the discharge port of the cryogenic reciprocating pump to a venting pipeline in the direction of liquid discharge, in turn, through a rewarming coil with a pressure sensor on the top, a cryogenic one-way valve, a vaporizer, a back pressure regulating unit, and a mass flow meter; a back pressure valve, a first throttling device with a maximum flow coefficient smaller than the back pressure valve and selectively connected in series with the back pressure valve, and a second throttling device with a maximum flow coefficient larger than the back pressure valve and selectively connected in parallel with the back pressure valve are arranged in the back pressure regulating unit. The present invention uses a flexible combination of the back pressure valve and the throttling device, so that the same cryogenic reciprocating pump testing system can be simultaneously applicable to multiple cryogenic working fluids and a wide flow range, thereby greatly improving the testing efficiency of the cryogenic reciprocating pump and the utilization rate of the testing system, and reducing the testing cost.

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.

A pump comprising a bore pump fluid end having a reciprocating element bore, a discharge valve assembly comprising a discharge valve seat and a discharge valve body, and a suction valve assembly comprising a suction valve seat and a suction valve body; a hollow, cylindrical reciprocating element; a hollow reciprocating element adapter comprising a first end having a fluid inlet opposite a second end having a fluid outlet, wherein the second end of the reciprocating element adapter is connected to and in fluid communication with the fluid intake end of the reciprocating element; a pump power end having a push rod connected to the first end of the reciprocating element adapter; and a movable manifold comprising a reciprocating element end and a fluid intake end, wherein the reciprocating element end of the movable manifold is connected to and in fluid communication with the fluid inlet of the reciprocating element adapter.