419 results about "Stuffing box" patented technology

A system includes a fluid end having a fluid end face and a recess extending toward a base. The system also includes a pressure ring extending from the fluid end face, the pressure ring having a pressure ring bore diameter larger than a fluid end bore diameter. The system further includes an adjacent ring coupled to the fluid end, the pressure ring positioned between the adjacent ring and the base, wherein at least one fastener extends through an aperture of the adjacent ring to couple the adjacent ring to the fluid end. The system includes packing material positioned within at least a portion of the pressure ring bore, the packing material positioned such that axial movement toward the fluid end is blocked by the base.

A packing assembly to be disposed within a stuffing box defined by a fluid end of a body of a reciprocating plunger pump includes an elastomeric component and a wear component. The elastomeric component has an at least partially tapered inner diameter and an outer diameter and, in use, engages the stuffing box on the outer diameter and is axially compressed within the stuffing box. The wear component sealably engaging the elastomeric component across the at least partially tapered inner diameter and dynamically contacts the plunger to form a dynamic seal.

The present invention relates to a stuffing box assembly comprising a stuffing box and a solid plate, the solid plate may be placed at the shaft introducing end of the stuffing box, between the stuffing box and a surface, when the stuffing box assembly is mounted on to the surface, the solid plate may be on a first side provided with a pressure plate flange and on a second side be provided with a counter pressure plate flange, wherein the pressure plate flange and / or the counter pressure plate flange is provided with one or more locking projections pointing towards the solid plate.

The utility model belongs to the technical field of material conveying, and particularly relates to a water cooling structure and a water cooling system of a rotary valve and the rotary valve, the water cooling structure of the rotary valve comprises 13 cooling water channels, and a transmission shaft cooling water channel is arranged in a transmission shaft; the working side flange and the transmission side flange are respectively provided with a working side flange cooling water path and a transmission side flange cooling water path; the working side stuffing box and the transmission side stuffing box are respectively provided with a working side stuffing box cooling water path and a transmission side stuffing box cooling water path; eight shell cooling water ways are distributed in the inner partial area of the rotary valve shell. According to the rotary valve, a reasonable water cooling structure with multiple cooling waterway partitions is adopted, partition arrangement of the water cooling structure is optimized, the problems of cooling dead zones and large resistance loss of the cooling waterways caused by unreasonable water waterway partitions are solved, cooling efficiency and high temperature resistance are improved, and reliability of the rotary valve is further improved.

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.

The utility model belongs to the technical field of valves, and particularly relates to a valve with valve rod padding evenly stressed, which comprises a valve body, a valve rod, a stuffing box, combined padding, an elastic piece and a material pressing piece, the valve rod is arranged on the valve body, and the stuffing box is arranged on the valve body and located outside the valve rod. The combined packing is arranged in the packing box; the elastic piece is arranged at the bottom of the combined filler; the material pressing piece is arranged on the valve body and used for pressing the combined packing downwards. Compared with the prior art, the valve rod packing in the valve can be pressed in two directions, so that the whole valve rod packing is stressed uniformly, the sealing performance of the valve rod packing is improved, and the service life of the valve rod packing is prolonged.

A system includes a fluid end having a fluid end face and a recess extending toward a base. The system also includes a pressure ring extending from the fluid end face, the pressure ring having a pressure ring bore diameter larger than a fluid end bore diameter. The system further includes an adjacent ring coupled to the fluid end, the pressure ring positioned between the adjacent ring and the base, wherein at least one fastener extends through an aperture of the adjacent ring to couple the adjacent ring to the fluid end. The system includes packing material positioned within at least a portion of the pressure ring bore, the packing material positioned such that axial movement toward the fluid end is blocked by the base.

The invention relates to the technical field of gate valves, and discloses a double-disc gate valve which comprises a water inlet valve body, a valve seat valve body and a water outlet valve body, the water inlet valve body is arranged at one end of the valve seat valve body, the water outlet valve body is arranged at the other end of the valve seat valve body, a valve cover is arranged at the top end of the valve seat valve body, a stuffing box is arranged at the top end of the valve cover, and a door-shaped support is arranged on the outer side of the stuffing box. A pressing nest disc and a rubber seat are tightly pressed on the outer side of the first gate plate and the outer side of the second gate plate, pressure is evenly applied to the edges of the first gate plate and the second gate plate, the first gate plate and the second gate plate are tightly pressed, the second gate plate and the second gate plate are tightly pressed, and the first gate plate and the second gate plate are tightly pressed. The first flashboard and the second flashboard can seal one end of the water inlet valve body or one end of the water outlet valve body, the pressing force can be adjusted through rotation of the nut, and the good sealing effect can still be kept after the flashboards generate small-amplitude abrasion.

The invention discloses integrated sewage integrated treatment equipment which comprises a treatment box, stand columns are connected to the four corners of the bottom of the treatment box, a feeding box is connected to the left side of the top of the treatment box, guide rails are connected to the front and back of the top of the treatment box, and a stuffing box is slidably connected to the outer portions of the guide rails; an impurity removal chamber is arranged on the left side of the top of an inner cavity of the treatment box, a partition plate is connected to the middle section of the bottom wall of the treatment box, a flocculation box is arranged on the right side of the inner cavity of the treatment box, a filter box is arranged below the flocculation box, a drainage pipe is communicated between the bottom wall of the treatment box and a filler box, and an infusion pump is installed on the drainage pipe. The right end of the treatment box is connected with a centrifugal filter, and the top of the centrifugal filter is communicated with a water purification pipe; the device integrates physical separation, chemical flocculation and biodegradation, can effectively purify sewage through automatic control and a modular structure, and is suitable for distributed or small-scale sewage treatment scenes.

The utility model discloses a plug valve, comprising a valve body, a plug body is arranged in the valve body, the valve body is connected with a valve cover through an external hexagonal bolt, an upper packing and a lower packing are arranged on the side of the plug body, a sealing ring is wrapped around the lower packing, a gasket is arranged on the upper side of the sealing ring, a stuffing box located on the side of the upper packing is arranged on one side of the gasket, an internal hexagonal bolt threadedly connected to the valve body is arranged on the upper side of the stuffing box, and a sealing ring is arranged between the plug body and the valve body. The utility model has the advantage of increasing the sealing performance of the plug valve.

The invention relates to the field of sealing element detection, and discloses a sealing performance detection device for a valve sealing element, which comprises an operation table, a first locking assembly is arranged on the operation table, the first locking assembly comprises a first air cylinder, and the output end of the first air cylinder is fixedly connected with a locking block through a piston rod. A linkage assembly is arranged on the side surface of the piston rod and used for synchronously transmitting driving force of the first air cylinder to the heat preservation cover and driving the heat preservation cover to move along the operation table. When the first locking assembly moves towards the end of the valve rod along the operation table and completes fixation of the valve rod, the heat preservation cover synchronously covers the stuffing box along with movement of the first locking assembly, a closed heat preservation space is formed, temperature fluctuation in the box is effectively reduced, uniform distribution of a temperature field is guaranteed, and heat preservation efficiency is improved. Meanwhile, the first air cylinder synchronously drives the first locking assembly and the heat preservation cover, an independent driving source does not need to be additionally arranged, and the heat preservation cover has the two-way adjusting capacity of continuous heat preservation and rapid heat dissipation.

A wear-resistant ceramic composite metal slurry pump for mineral processing. The slurry pump comprises a bracket (1), a bearing assembly (2), a stuffing box (3), a pump casing (4), and wetted parts; the wetted parts include a front liner (5), a rear liner (6), a throat bushing (7), and an impeller (8); the front liner (5), the rear liner (6), the throat bushing (7), and the impeller (8) each adopt a composite structure in which ceramic blocks are bonded to metal, and the ceramic blocks are bonded to a metal framework in wear-prone areas of the wetted parts by means of an adhesive.

The invention discloses a dual-motor foot-type robot driving joint with an explosion-proof structure, which comprises a front module, a rear module and a stuffing box, a front output rotor is connected with a rotor of a front joint module, the front joint module is arranged in a front explosion-proof shell, a front explosion-proof upper shell is connected with the top of the front explosion-proof shell, and a rear output rotor is connected with the rear module. A front explosion-proof ring is arranged between the front output rotor and the front explosion-proof upper shell, and the front explosion-proof rear shell is connected with the bottom of the front explosion-proof outer shell; the rear output rotor is connected with a rotor of the rear joint module, the rear joint module is arranged in the rear explosive-proof shell, the rear explosive-proof upper shell is connected with the top of the rear explosive-proof shell, a rear explosive-proof ring is arranged between the rear output rotor and the rear explosive-proof upper shell, the rear explosive-proof rear shell is connected with the bottom of the rear explosive-proof shell, and the rear output rotor is connected with the front explosive-proof rear shell; and the stuffing box is connected with the rear explosion-proof rear shell through explosion-proof threads. The explosion-proof switch is novel in design and reasonable in structure and has an explosion-proof function. The front joint module, the rear joint module, the stuffing box and the like which are integrated can be modularly replaced, and assembling and maintaining are convenient.

The invention relates to the technical field of valves, in particular to an eccentric rotary valve which comprises a valve body, an upper valve rod, a lower valve rod rotationally arranged in the valve body and a valve element located in the valve body, the valve element is fixedly provided with an upper shaft diameter coaxially fixed to the upper valve rod and a lower shaft diameter coaxially fixed to the lower valve rod, and a valve seat and a limiting piece are arranged in the valve body; an upper stuffing box is arranged on the inner wall of the valve body, sealing stuffing is arranged on the inner wall of the valve body, an upper sliding bearing is jointly arranged on the peripheries, close to each other, of the upper shaft diameter of the upper valve rod and the upper shaft diameter of the valve element in a sleeving mode, and a stuffing pressing sleeve used for blocking a gap is fixedly arranged on the inner wall of an opening, facing the outside, of the upper stuffing box; the possibility that medium thrust borne by the valve element is conducted to the upper valve rod and the lower valve rod is effectively reduced, valve element position change caused by medium impact is greatly reduced, and the situation that the valve element deviates, and the valve rod additionally bears the medium thrust is avoided.

The invention relates to a water-cooling jacket type high-temperature plunger valve which comprises a valve body, a valve seat and a packing gland are installed at the two ends of the valve body respectively, a plunger is arranged in the valve body, the valve seat and the packing gland in a sliding mode, a gas sealing structure is arranged between the packing gland and the plunger, a valve body middle guide is arranged in one end of the valve body, and the plunger moves along the valve body middle guide. The valve seat is close to the valve body middle guide; a stuffing box is arranged in the other end of the valve body, a guide sleeve and a stuffing set are arranged in the stuffing box, a gland hole and a vent hole which are communicated with each other are formed in the stuffing gland, a first sealing ring, a gas sealing cavity and a second sealing ring are sequentially arranged in the gland hole, the gas sealing cavity is communicated with the vent hole, and the vent hole and the gas sealing cavity form a gas sealing structure. The valve seat and the equipment flange are of a welded integrated flush joint structure, the plunger is designed to be short in stroke, and the requirement for compact space installation is met.

The invention relates to a vertical shaft mixed-flow pump with a novel structure. The vertical shaft mixed-flow pump comprises a stuffing box, a bearing body component, a pump shaft, a pump body, an impeller and a motor, a pump shaft is directly connected with a motor and an impeller, a bearing body part is located on the upper portion of a stuffing box, and the bearing body part is directly and rigidly connected with a pump body through a flange structure; the bearing body part comprises at least two groups of angular contact ball bearings which are arranged back to back; the motor is installed at the upper end of the bearing body component. The bearing body part is integrated on the upper portion of the water pump layer stuffing box, a traditional motor base structure is omitted, and the pump shaft is directly connected with the motor and the impeller. According to the design, the manufacturing cost is remarkably reduced, the axial installation size is shortened, meanwhile, the vibration of equipment is reduced by optimizing an axial force transmission path, and the device is particularly suitable for pump station transformation projects with limited space.

The utility model relates to an automatic pressing liquid packing sealing device for a pump. The automatic pressing liquid packing sealing device comprises a packing gland, a packing box, a self-tightening spring device and the like. A filler is arranged between the filler box and the pump shaft and comprises an upper-layer ramie filler, a middle liquid filler and a lower-layer ramie filler, a channel for filling the liquid filler is reserved on the filler box, one end of the channel is connected with the middle liquid filler, and the other end of the channel is provided with a liquid filler filling plug; a trace exhaust valve is arranged on the stuffing box; and the self-tightening spring device is fixed on the packing gland. The liquid filler is a main wear consumable, plays a main sealing role, is very soft, does not damage the rotor shaft, and plays a role in protecting the rotor. And the automatic exhaust function is achieved. When the service time is longer and longer and the sealing effect is reduced, the liquid filler can be supplemented through the liquid filler filling port under the condition that the machine is not stopped and parts are not disassembled, so that the overhaul period of filler sealing is prolonged, and the operation and maintenance cost is reduced.

A packing seal pressure reduction structure for conveying high-pressure media comprises a shaft sleeve, a packing box is installed on the outer side of the shaft sleeve, packing, a packing ring and a packing gland are installed between the low-pressure side of the packing box and the shaft sleeve, the packing gland compresses the packing and the packing ring, and a labyrinth seal groove and a liquid accumulation groove are sequentially machined in the high-pressure side of the packing box. A pressure relief channel is machined in the stuffing box and communicated with the liquid accumulation groove, and a pressure relief water pipe is installed above the pressure relief channel. According to the utility model, the medium pressure at the packing sealing medium end is effectively reduced, and the sealing medium is converted from a high-pressure medium to a low-pressure medium; the packing pressing force is reduced, the abrasion of the packing and the shaft sleeve is slowed down, the service life of the packing and the shaft sleeve is prolonged, and the maintenance period is prolonged; the unit friction efficiency is improved; the utility model provides a solution for changing mechanical sealing of high-pressure medium sealing into packing sealing.

The invention discloses a lining high-vacuum regulating valve, which comprises a valve body and a valve rod arranged in the valve body, and further comprises a valve core connected with the valve rod and a valve cover provided with a stuffing box, and is characterized in that the inner surface of the valve body is coated with a first lining layer, and the first lining layer and the valve body form a conformal coating structure through a thermal forming process; the outer surface of the valve element is coated with a second lining layer, and the second lining layer and the valve element form a common coating structure through the thermal forming technology. Through the means of combining a high-temperature mold pressing injection molding process and a dovetail groove rivet composite structure, the industrial problems of stripping deformation of a lining material and a metal valve body and medium leakage under the high-vacuum working condition are solved, and the structural stability of the lining layer under the extreme negative pressure and the zero leakage effect of gas-liquid media are obtained; and the equipment reliability and environmental safety of vacuum distillation, negative pressure reaction and other processes in the fields of chemical industry, pharmacy and the like are remarkably improved.

The utility model relates to the technical field of biological deodorization, in particular to a structure of box type biological deodorization equipment, which comprises a box body and an air inlet pipe, the box body is of a rectangular shell structure; the first partition plate and the second partition plate are fixed on the inner wall of the box body; the exhaust port is formed in the position, close to the middle, of the second partition plate. The dust collecting box is connected with the box body in an inserting manner and is arranged below the filter screen plate; the movable support is placed between the first partition plate and the second partition plate in the box body. A biological stuffing box is welded and fixed above the movable bracket, and biological stuffing is filled in the biological stuffing box; a connecting pipe is arranged above the biological stuffing box, and a spray head is mounted on the outer wall of the connecting pipe; by improving the structure of the box-type biological deodorization equipment, the box-type biological deodorization equipment has the advantages that the biological filler is convenient to replace, and dust generated after waste gas is filtered is convenient to clean, so that the problems and defects in the prior art and equipment are effectively solved.

The invention discloses a mining wear-resistant ceramic composite metal slurry pump. The slurry pump comprises a bracket, a bearing assembly, a stuffing box, a pump shell and an overflowing part. The overflowing piece comprises a front protective plate, a rear protective plate, a protective sleeve and an impeller; the front protective plate, the rear protective plate, the protective sleeve, the impeller and other overflowing pieces are all of a composite structure formed by bonding ceramic blocks to metal, and the ceramic blocks are bonded to metal frameworks of the easy-to-wear areas of the overflowing pieces through adhesives. The invention further provides a preparation method of the composite material of the ceramic block bonded with the metal. According to the ceramic composite metal slurry pump, the abrasion resistance and corrosion resistance of ceramic are exerted, the partitioning design solves the problems that silicon carbide ceramic is difficult to be large and large in brittleness, the ceramic blocks can be independently replaced, the maintenance cost is low, and the ceramic composite metal slurry pump is particularly suitable for conveying media containing solid particles and corrosivity in mineral separation, metallurgy, chemical engineering and the like.

The utility model relates to the technical field of heat exchangers, in particular to a stuffing box heat exchanger. Comprising a tube box, a shell pass cylinder, an outer head cover and a tube bundle, one end of the shell pass cylinder is detachably connected with the tube box through a tube box side flange, and the other end of the shell pass cylinder is detachably connected with the outer head cover through an outer head cover side flange; the fixed end of the tube bundle is fixed at one end of the shell pass cylinder, and the floating end of the tube bundle adopts a stuffing box structure; a groove is formed in the inner side of the outer head cover side flange, the filler is placed in the groove and pressed and fixed through the filler gland, and the filler seals the floating end of the tube bundle. The manufacturing cost is low, the tube bundle can be detached, overhauling and cleaning are easy, and media do not leak outwards.

The hollow containers (3, 4) are arranged above a hollow column (2), the hollow column (2) is arranged around the liquefied gas pump (P), and a cable (8) for installing / drawing the liquefied gas pump (P) penetrates through the central part of the containers (3, 4) from the lower part to the upper part. The containers (3, 4) are provided with: lower plate members (5, 6) having cable through-holes (9, 10), through which the cables (8) can pass, in the center thereof; and a cartridge member (12) provided around the cable through-holes (9, 10) in the center of the lower plate members (5, 6) and having a cable insertion hole (13) in the center, the cable insertion hole (13) allowing the cable (8) to be inserted therethrough. The cartridge member (12) is provided with opening diameter adjustment mechanisms (14, 20) that adjust the size of the opening diameter of the cable insertion hole (13).

The utility model relates to a novel thickener bottom stirring device. A conical bottom cavity is formed below the bottom of a thickener, an upper stirring shaft is rotationally connected with the bottom face of the thickener through a stuffing box, the stuffing box is provided with a matched stuffing gland, the space between the stuffing box and the upper stirring shaft is filled with stuffing, and a stirring impeller is arranged at the end, on the inner side of the thickener, of the upper stirring shaft. The transmission mode between the upper stirring shaft and the output shaft of the speed reducer all-in-one machine is chain transmission, so that the two shafts are not in the same vertical direction, and the speed reducer all-in-one machine is prevented from receiving a medium leaked from a stuffing box; the second protection plate is arranged on the upper stirring shaft, the edge of the second protection plate is located on the outer side of the first protection plate, the first protection plate is arranged on the bottom face of the cone bottom cavity, a closed pattern is formed on the bottom face of the cone bottom cavity, and leaked media are sealed to the area, deviating from the stirring shaft, of the bottom of the cone bottom cavity. The overflow port is formed in the outer side of the first protection plate of the cone bottom cavity, is lower than the top end of the first protection plate and is used for discharging leaked media.

The utility model relates to the technical field of temperature monitoring, in particular to a temperature monitoring device for a packing box of a compressor, which comprises a temperature sensor module, a microcontroller, a wireless communication module, a power management module and an alarm module, and is characterized in that the temperature sensor module is connected with the microcontroller and is used for monitoring the temperature in the packing box; the microcontroller is connected with the wireless communication module and is used for transmitting and receiving wireless data; the power management module is used for supplying power to the temperature sensor module, the wireless communication module and the alarm module; the microcontroller is connected with the alarm module and gives an alarm when the temperature exceeds a set range. By monitoring the temperature in the packing box in real time, the abnormal temperature rise condition can be found in time, so that measures are taken in advance to avoid packing leakage, whether the packing is close to the working limit or not can be judged, and the packing is replaced in time to prevent leakage from being aggravated.

The utility model relates to the field of watertight compartments, in particular to a multichannel underwater acoustic signal acquisition sealed compartment, which comprises a compartment body, a compartment cover, a sealing ring, an acquisition module and a stuffing box. A cabin cover covers the cabin body, and a sealing ring is arranged at the joint of the cabin body and the cabin cover to prevent water. The cabin body and the cabin cover are both designed to be polygonal, a plurality of hydrophone installation interfaces are evenly distributed on a plurality of vertical faces of the cabin body, and hydrophone cables are connected to an acquisition module inside the cabin body through stuffing boxes installed on the hydrophone installation interfaces. The multichannel underwater acoustic signal acquisition sealed cabin provided by the utility model can avoid the problems of water leakage, structural deformation and the like under the water pressure of 3Mbar, and ensures the normal work of the acquisition module in the cabin body. Meanwhile, the device has the advantages of multiple channels, small size, high pressure resistance, good waterproofness and the like, and effectively solves the problems of low data precision and low data reliability caused by insufficient channels or insufficient diving depth of the collection sealed cabin.

The utility model relates to the technical field of ship construction, in particular to a cabin cable frame sealing device which comprises a bottom plate. A cable penetration piece is arranged at the upper end of the bottom plate, a sealing gasket is arranged between the cable penetration piece and the bottom plate, threaded rods are welded to the two sides of the upper end of the bottom plate, cross beams are arranged on the two sides of the upper end of the cable penetration piece, round holes are formed in the middles of the cross beams, the threaded rods upwards penetrate through the round holes, and nuts in threaded connection with the threaded rods are arranged above the cross beams; and a hollow plate is arranged between the two cross beams. According to the utility model, the cable penetration piece is pressed on the sealing gasket on the bottom plate through downward pressing of the cross beam, the bottom plate plane is ensured to cover the bottom of the cable penetration piece, the sealing performance is effectively ensured, the requirement required by a sealing cabin sealing test can be quickly met after use, and a stuffing box sealing material does not need to be used for temporary sealing, so that material waste is avoided; operation steps are simple and rapid, and carrying and installation are convenient.

The utility model relates to a jacket for a three-way fixed ball valve, and relates to the technical field of three-way ball valves. An inflow channel and two outflow channels are formed in the valve body, a valve cavity is formed in the valve body, the inflow channel and the outflow channels are communicated with the valve cavity, a communication assembly is arranged in the valve cavity and used for controlling communication of the inflow channel and the outflow channels, a stuffing box is arranged on the valve body, and a circulation assembly penetrates through the stuffing box. The valve body is sleeved with the clamping sleeve, and the stuffing box penetrates through the clamping sleeve. The valve has the effect that the valve body can be conveniently overhauled and observed.

A stuffing box assembly for a fluid end of a hydraulic fluid pump includes a first stuffing box member having a first plunger bore configured to receive a plunger of the hydraulic fluid pump and a plurality of seals. The first stuffing box member further comprises a first bore spaced apart from the plunger bore. A second stuffing box member has a threaded stuffing nut bore configured to receive a stuffing nut of the hydraulic fluid pump. The second stuffing box member further comprises a second bore spaced apart from the stuffing nut bore. A fastener is configured to extend through the first and second bores to secure the first stuffing box member to the second stuffing box member.

The present invention discloses a pressure-resistant cable stuffing box, which relates to the technical field of stuffing boxes, specifically a pressure-resistant cable stuffing box, comprising an inner sleeve, a bearing movably sleeved on the outside of the inner sleeve, a step flange movably sleeved on the outside of the bearing, a connecting flange fixedly connected to the bottom of the step flange, a tensioning spring fixedly installed below the step flange, and a limited inner sleeve fixedly connected below the step flange. The pressure-resistant cable stuffing box is configured by sleeve-mounting a step flange on the outside of the inner sleeve through the bearing, so that the bottom surface of the step flange is connected to a sealing ring through a tensioning spring, and the connecting flange is installed below the step flange so that the bottom surface of the sealing ring is located below the bottom surface of the connecting flange. When in use, the inner sleeve is rotated to the inner cavity of the wall surface through a thread, and the tensioning spring is in a compressed state, so that the sealing ring seals the connection between the inner sleeve and the bearing to prevent oil leakage, thereby effectively increasing the sealing performance of the device.