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331 results about "Stuffing box" patented technology

A stuffing box is an assembly which is used to house a gland seal. It is used to prevent leakage of fluid, such as water or steam, between sliding or turning parts of machine elements.

Dual ring stuffing box

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.
Owner:VULCAN IND HOLDINGS LLC

Adjustable high pressure packing assembly

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.
Owner:THIRD COAST INNOVATION LLC

Water cooling structure and water cooling system of rotary valve and rotary valve

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.
Owner:CISDI ENGINEERING CO LTD +1

Valve with valve rod padding evenly stressed

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.
Owner:FANGYUAN VALVE GROUP

Dual ring stuffing box

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.
Owner:VULCAN IND HOLDINGS LLC

Integrated sewage integrated treatment equipment

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.
Owner:YIXING RONGZHENG ENVIRONMENTAL PROTECTION CO LTD

Sealing performance detection equipment for valve sealing element

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.
Owner:NINGBO SHIELD SEALING CO LTD

Wear-resistant ceramic composite metal slurry pump for mineral processing, and forming process

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.
Owner:JIANGXI NAIPU MINING MASCH CO LTD

Dual-motor foot type robot driving joint with explosion-proof structure

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.
Owner:CNOOC SAFETY & TECH SERVICES CO LTD

Eccentric rotary valve

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.
Owner:CHINA ZHIPENG AUTOMATIC CONTROL VALVE CO LTD

Lining high-vacuum regulating valve

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.
Owner:HANGZHOU LIANGSHENG ELECTRIC CO LTD

Wear-resistant ceramic composite metal slurry pump for mineral separation and forming process

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.
Owner:JIANGXI NAIPU MINING MASCH CO LTD

Novel thickener bottom stirring device

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.
Owner:SHIHLIEN CHEM IND (JIANSU) CO LTD

Compressor packing box temperature monitoring device

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.
Owner:JIANGSU DIKEN IND TECH CO LTD

Multi-channel underwater acoustic signal acquisition sealed cabin

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.
Owner:NAT UNIV OF DEFENSE TECH

Cabin cable frame sealing device

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.
Owner:HUDONG ZHONGHUA SHIPBUILDINGGROUP +1

Jacket for three-way fixed ball valve

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.
Owner:SUZHOU HUAGEN VALVE CO LTD

Hydraulic fluid pump and stuffing box assembly for same

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.
Owner:GD ENERGY PRODUCTS LLC

Pressure-resistant cable gland

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.
Owner:HUDONG HEAVY MACHINERY

Modularized artificial wetland experimental device

The utility model discloses a modularized artificial wetland experimental device which comprises a stuffing box, a plurality of groups of isolation net-shaped partition plates are arranged in the stuffing box from top to bottom, the interior of the stuffing box is divided into a plurality of groups of stuffing cavities through the isolation net-shaped partition plates, and wetland stuffing is arranged in the plurality of groups of stuffing cavities. A plurality of groups of arc-shaped sealing plates corresponding to the packing cavities are hinged to the packing box, sealing rubber strips for sealing are arranged on the edges of the arc-shaped sealing plates, and the sealing rubber strips are tightly pressed and attached to the edges of the packing box; according to the modularized artificial wetland experimental device, only the filler of a certain layer can be replaced under the condition that other layers are not influenced, so that an experiment can be quickly and effectively carried out, the use and the assembly are more convenient, the filler can be replaced according to experimental requirements, the convenience of replacing the filler is improved, and the working efficiency is improved. Therefore, the practicability of the equipment is improved.
Owner:YANTAI UNIV

Closed filler bin

The utility model discloses a closed packing bin which comprises a bin body and a cover cap, the cover cap is arranged at the top of the bin body, a first placing hole is formed in the top of the bin body, an upper oil seal is arranged at the bottom of the first placing hole, the middle of the cover cap is tightly pressed on the top of the upper oil seal to fix the upper oil seal, and a sliding hole is formed in the middle of the bottom of the first placing hole. The oil immersion packing is arranged in the containing hole and can be matched with a valve rod, on one hand, water is prevented from permeating into the bin body, on the other hand, lubricating oil can fully lubricate the valve rod, abrasion of the valve rod is reduced, and the service life of the valve rod is prolonged; lubricating oil is sealed in the sliding hole and the containing hole through the upper oil seal and the lower oil seal, the valve rod can be fully lubricated when sliding in the sliding hole and the containing hole, and the packing bin is wide in application range, suitable for parallel up-down lifting type valve rods, good in sealing performance and free of maintenance.
Owner:WENZHOU HONGSHENG VALVE CO LTD

Pump shaft seal combined structure

The utility model discloses a pump shaft seal combined structure, which adopts a mechanical seal assembly and a packing seal assembly, the mechanical seal assembly is arranged at one end of a main shaft and is used for mechanically sealing one end of the main shaft; the packing sealing assembly is arranged at the other end of the main shaft and used for conducting packing sealing on the other end of the main shaft; the packing sealing assembly comprises a packing box, the packing box sleeves the main shaft, and a packing cavity is formed in the position, close to the main shaft, of the packing box. According to the utility model, the original double-end-face mechanical seal is changed into the single-end-face mechanical seal, and the single-end-face mechanical seal is made of common materials, so that the improvement cost is low; the stuffing box is arranged in the stuffing box and is used for keeping the muddy stuffing in a correct shape, so that the muddy stuffing is not plastically deformed during operation, and the sealing effect is good; the holes are formed in the stuffing box and are opposite to the holes in the stuffing box body, the muddy stuffing is injected into the stuffing box through the holes, and the stuffing box is convenient to use.
Owner:JUZI (YUNNAN) ENERGY SAVING TECH CO LTD

High-pressure regulating valve with excellent sealing performance

The utility model discloses a high-pressure regulating valve with excellent sealing performance, which belongs to the technical field of high-pressure air supply regulation and comprises a valve body, a sealing component, a valve cage, a valve component, a filler component, a sealing heat dissipation component and an execution component are mounted on the valve body, and the valve component for controlling fluid circulation is mounted at the lower end of the execution component. The sealing assembly, the valve cage, the valve assembly, the packing assembly and the sealing heat dissipation assembly are located on the inner side of the valve body. The valve cage comprises a valve cage bottom piece, a plurality of valve cage middle pieces, a valve cage upper cover and a valve cage gland. By means of the mode, through the arrangement of the valve cage middle piece, fluid scouring and cavitation erosion are relieved, and the service life of equipment is prolonged; through the arrangement of the inclined surface of the self-sealing ring and the elastic strain groove, the sealing effect of the self-sealing ring can be improved when the stuffing box receives pressure, and leakage of fluid is avoided; through the arrangement of the filler box, the filler gasket, the filler and the filler pressing sleeve, the heat transfer efficiency is improved, and the heat dissipation effect is improved through the cooperation of the cooling fins.
Owner:BEIJING VALVE GENERAL FACTORY CO LTD

A regulating valve with a leak-proof mechanism

This invention relates to the field of control valve technology, and specifically discloses a control valve with an anti-leakage mechanism. A control component is rotatably connected to the top of the valve body, a buffer component is fixedly connected to the inner side of the valve body, and the side of a contact component is fixedly connected to the inner side of the valve body. The inner side of the contact component is threadedly connected to the side of the control component. The control component includes a valve stem, a rotating rod is fixedly connected to the top of the valve stem, and a valve core is fixedly connected to the bottom of the valve stem. This control valve with an anti-leakage mechanism, by providing a contact component, allows lubrication to reduce friction between the valve stem and the stuffing box, reducing wear caused by friction. When the wear on the valve stem surface is small, it can better fit with the packing, allowing the packing to more tightly fill the gap between the valve stem and the stuffing box, thereby reducing the possibility of media leakage and improving the valve's sealing performance.
Owner:ZHEJIANG BEIER CONTROL VALVE

Mounting jig, mounting device, and mounting method for gland packing

A mounting jig 10 is provided with a jig body 11 comprising: a cylindrical barrel part 13 which is externally fitted to a shaft A and which has a tape member 1 wound around the outer circumference thereof; a driven gear 14 which is continuous with the barrel part 13 and which rotates together with the barrel part 13 upon receiving a rotational driving force; and a pressing pin 16 which presses an end part of the tape member 1 against the outer circumferential surface of the barrel part 13. The pressing pin 16 is configured so as not to hinder slide movement of gland packings 1a, 1b formed by winding the tape member 1 around the outer circumference of the barrel part 13, in a direction away from the driven gear 14 along the axial direction of the barrel part 13. The jig body 11 is configured to be attachable to a lateral side of the shaft A.
Owner:PILLAR CORP

Heat exchanger

The invention provides a heat exchanger, and relates to the technical field of heat exchange, the heat exchanger comprises a cylindrical shell, a heat exchange tube group is arranged in the cylindrical shell, and the cylindrical shell is provided with a shell pass inlet and a shell pass outlet; the front tube box is connected with one end of the barrel shell in a sealed mode, the rear tube box is connected with the other end of the barrel shell in a sealed mode, and the heat exchange tube set is communicated with the interior of the rear tube box; the floating tube plate is arranged in the barrel shell and close to the other end of the barrel shell, and the floating tube plate can move along the axis of the barrel shell; and the stuffing box sealing structure is arranged between the floating tube plate and the inner side of the barrel shell, or the stuffing box sealing structure is arranged between the floating tube plate and the inner side of the rear tube box, so that a shell pass fluid medium can be effectively prevented from leaking out, the damage to the external environment is prevented, and the stuffing box sealing structure is suitable for occasions with inflammable, explosive and toxic media; the strength is high, the sealing performance is good, and safe and reliable operation can be ensured on the occasion with high shell side pressure.
Owner:SINOPEC ENGINEERING INCORPORATION +1

Packing sealing structure for slurry pump and slurry pump

The utility model provides a filler sealing structure for a slurry pump and the slurry pump. The filler sealing structure comprises a shaft sleeve, a packing, a sealing ring and a gland. The shaft sleeve is used for fixedly sleeving a shaft; the shaft sleeve and the shaft hole of the stuffing box form an annular cavity with one end open. The number of the packings is multiple, and all the packings are arranged in the annular cavity. The number of the sealing rings is multiple, and the sealing rings are arranged in the annular cavity. The shaft sleeve is sleeved with the gland, and the gland is used for blocking the opening of the annular cavity and limiting the packings and the sealing rings in the axis direction of the shaft sleeve. According to the packing sealing structure for the slurry pump and the packing sealing mode adopted by the slurry pump, the sealing effect can be effectively enhanced, meanwhile, due to the arrangement of the multiple sealing rings, abrasion to the shaft sleeve can be relatively reduced, the service life of the pump is prolonged, and practicability is high.
Owner:SHIJIAZHUANG IND PUMP FACTORY CO LTD

Mud pump fitting

ActiveCN309859055SMechanicsPlunger
1. The name of the design product: mud pump accessories. 2. The use of the design product: packing box for plunger type mud pump, and integrated cylinder sleeve for plunger type mud pump. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.
Owner:LAIZHOU SANYI ENGINEERING MACHINERY CO LTD

Anti-slip device of vibrating feeder

The utility model discloses an anti-slip device of a vibrating feeder, which is arranged on the upper part of a trough of a coke dry quenching and discharging system, is fixed with the trough through a hole channel and a manhole cover at the upper end of the trough, and comprises a coke blocking rod, a stuffing box, a gland, a packing and the like, the coke blocking rod is arranged in the middle of the stuffing box and the gland, and the packing is arranged in the middle of the gland. An anti-skid structure is arranged at the upper end of the coke blocking rod to prevent the coke blocking rod from rotating and moving downwards, the lower end of the coke blocking rod is inserted into coke in the material groove to prevent the coke chute phenomenon, and carbon monoxide gas in the material groove is prevented from leaking through the packing pressed between the stuffing box and the gland. The anti-slip device of the vibration feeder is reasonable in structural design, the coke blocking rods are convenient to press, only the manhole cover needs to be replaced, the anti-slip device of the vibration feeder is wide in adjusting range, different numbers of coke blocking rods are selected to be inserted according to the slip amount, and the operation cost is low.
Owner:ANYANG HENGWEI PETROCHEM EQUIP