779 results about "Plug valve" patented technology

The invention provides an air tightness detection device of a pressure balance type plug valve, and relates to the technical field of valve air tightness detection. An air tightness detection device of a pressure balance type plug valve comprises a water pool, an adjusting mechanism, two clamping mechanisms and an end sealing mechanism, the end sealing mechanism comprises two groups of positioning assemblies and two groups of sealing assemblies, and the positioning assemblies and the sealing assemblies are communicated and used for enabling the sealing assemblies to generate axial displacement. The sealing assembly is coaxially arranged in multiple layers, the structures of all the layers of the sealing assembly are the same, the sealing assembly is used for being inserted into an inlet and an outlet of a plug valve to be detected, and by means of the multi-layer design of the sealing assembly and the design that the positioning assembly enables each layer of the sealing assembly to generate independent axial displacement, the plug valve to be detected can be detected. The sealing assembly is adapted to plug valves to be detected with different calibers; the sealing assembly has the action of expansion under the action of air source pressure, so that the part inserted into the plug valve to be detected is in sealed connection with the plug valve, and the sealing performance is ensured.

The invention relates to the technical field of oil field workover treatment, in particular to a rapid blowout wrecking device and method for minor repair operation. According to the technical scheme, a lifting mechanism is installed on workover treatment equipment through a fixing mechanism, a rotary speed reducer is installed at the upper end of the lifting mechanism, a blowout wrecking rotating arm is installed on the upper portion of the rotary speed reducer, the outer end of the blowout wrecking rotating arm is fixedly connected with a fixing base, a turbine is installed in the fixing base, and a rotating short section is installed in the center of the turbine. The lower end of the rotary short section is movably connected with a full-bore plug valve; the worm is installed on one side of the turbine, the worm is driven by the hydraulic cycloid motor to rotate, the worm drives the turbine and the rotary short section to rotate, then the full-bore plug valve is driven to be rotationally connected to an oil pipe of a wellhead, then the switch knob is closed, and blowout wrecking is completed. The full-bore plug valve is installed through mechanical rotation, the follow-up loading function is achieved, potential safety hazards caused by manual installation of the full-bore plug valve are avoided, and rapid blowout wrecking work of blowout is achieved.

The invention relates to the technical field of plug valves, and provides a multi-channel plug valve which comprises a valve body, a valve element, a valve element, a valve element and a valve element. A mounting space is formed in the valve cover; the plug cock is arranged in the valve cavity, can rotate around the central axis of the plug cock and can move along the central axis of the plug cock; the lining is arranged on the inner wall of the valve cavity and matched with the outer wall of the cock; the rotating source is arranged on the valve cover; the selective transmission mechanism is arranged in the mounting space and comprises an input end, a first output end and a second output end; the axial transmission part is movably arranged in the mounting space along the central axis of the cock and is in transmission fit with the second output end; the detection part is arranged on the valve body; and a controller. According to the multi-channel plug valve, the sealing state of the lining can be detected in real time, the plug cock is controlled to axially move to press the lining so as to compensate sealing, and then the sealing performance of the multi-channel plug valve is improved.

The invention discloses a plug valve plug assembling device, belongs to the technical field of valve assembling, and aims to solve the problem that a plug valve is difficult to assemble. Comprising a driving screw and a sleeve, the lower ends of a plurality of supporting studs are connected with a base, the upper ends of the supporting studs are connected with a supporting plate, a pressing ring is in sliding fit with the supporting studs, the driving screw is in threaded fit with a driving nut, and the sleeve is formed by detachably connecting and splicing two semi-tubular components; when the plug valve is assembled, the two semi-tubular components firstly press the two valve seats into the two annular grooves respectively, then the two semi-tubular components are connected to form a sleeve, the base is connected with the valve body, the sleeve is coaxial with the valve cavity hole, the sleeve is pressed on the valve body through the pressing ring, the lower end of the driving screw rod is connected with the plug cock, and the driving nut is located on the lower side of the connecting plate. When the driving screw rod is clamped, the driving nut is screwed upwards, and the driving screw rod can press the plug cock into the valve cavity hole. The problem that the valve plug of the plug valve is not easy to install is effectively solved.

The present invention discloses a grease injection system for a plug valve and a fracturing device. The grease injection system is used to inject grease into the plug valve. The grease injection system includes a power mechanism and a flow control valve group. The power mechanism includes a driving motor, a hydraulic pump, and a hydraulic oil tank. The driving motor is connected to the hydraulic pump. The hydraulic pump has an oil inlet and a plurality of oil outlets. The oil inlet is communicated with the hydraulic oil tank. The flow control valve group includes a valve body and a control valve. The valve body has a first oil passage port, a second oil passage port, and a third oil passage port. The first oil passage port is communicated with the second oil passage port. The second oil passage port and the third oil passage port are communicated with one or more of the oil outlets. A control valve is arranged between the first oil passage port and the third oil passage port to control the communication or disconnection between the first oil passage port and the third oil passage port. The above solution can solve the problem of great difficulty in injecting grease into the plug valve.

The utility model relates to the technical field of coke oven heating, in particular to an economical single-hole combustion chamber temperature adjusting device, which is characterized in that the input end of each heating gas unit I and the input end of each heating gas unit II are respectively connected with a heating gas main pipe; the output end of each first coal gas heating unit and the output end of each second coal gas heating unit are connected with the corresponding combustion chamber, one end of each adjusting unit is connected with the corresponding first coal gas heating unit, and the other end of each adjusting unit is connected with the corresponding second coal gas heating unit. The utility model has the advantages that the structure realizes the communication of the two heating gas main pipes, one regulating valve can be adopted to complete the flow regulation of the two gas heating pipes in the same combustion chamber, and the on-line maintenance and manual regulation are realized by changing the opening position of the T-shaped plug valve; the regulating valve is connected with the stop valve through the three-way connector, it is guaranteed that the regulating valve can be detached at any time when breaking down, and normal production is not affected.

The invention provides a plug valve and belongs to the technical field of kitchen appliances, the plug valve comprises a valve body, a valve core, a valve rod and a delay mechanism, the valve body comprises a valve body, an outer ring air outlet assembly and an inner ring air outlet assembly, and the valve core comprises a valve core cavity, an outer ring air outlet hole, an air inlet hole and an inner ring air outlet hole, the outer ring air outlet assembly is provided with an outer ring channel and a stir-frying channel connected to the outer ring channel, and the inner ring air outlet assembly is provided with an inner ring channel; the air inlet hole is communicated with the outer ring air outlet hole to form a first air outlet channel communicated with the outer ring channel, and the air inlet hole is communicated with the inner ring air outlet hole to form a second air outlet channel communicated with the inner ring channel; the delay mechanism is inserted into the valve element cavity and can abut against the valve rod which is configured to be in a downward pressing state, and the delay mechanism can ascend and descend along with the valve rod so as to connect or disconnect the first air outlet channel and the outer ring channel. The gas outlet of the outer ring can be delayed, ignition deflagration is prevented, and the product safety performance and the user experience are effectively improved.

The utility model relates to a batching machine for feed processing. Comprising a steel structure table device provided with a crawling ladder, a stirring tank is installed on the steel structure table device, a spiral discharging device is installed at a discharging port in the lower end of the stirring tank, and a mixing and stirring device used for stirring materials is installed in the stirring tank; at least two groups of feed ports are formed in the top of the stirring tank, and each feed port is communicated and connected with a batching feed hopper; a batching bracket is mounted on the steel structure table device, and at least two groups of weighing devices are arranged at a feed port of each batching feed hopper; the multiple groups of raw material conveying devices are mounted on the batching bracket, and are arranged in one-to-one correspondence with the multiple groups of weighing devices; a raw material stirring device is arranged in each raw material conveying device; the weighing device comprises a weighing hopper connected with the batching support through a weighing sensor, and a gate valve assembly is installed at a discharging port of the weighing hopper. According to the utility model, various feed raw materials can be accurately proportioned and mixed, and the situation that various raw materials are layered and are difficult to quickly mix when being poured once is avoided.

The utility model discloses a fully automatic polishing machine for the conical surface of a plug valve, including a working chamber, a position adjustment mechanism and a spacing adjustment mechanism; the working chamber: the upper end thereof is provided with a symmetrically distributed sliding port, the interior of the sliding port is fixedly connected with a guide column, a symmetrically distributed sliding frame is slidably connected between the guide columns, the rear end of the upper surface of the working chamber is fixedly connected with a bracket, the interior of the bracket is slidably connected with a lifting plate, the front end of the lower surface of the lifting plate is rotatably connected with a positioning plate through a rotating shaft, the center position of the upper surface of the working chamber is rotatably connected with a storage plate, and the central axis of the positioning plate and the storage plate coincide; the position adjustment mechanism: it is respectively arranged in the middle of the sliding frame, and one end of the position adjustment mechanism close to the center of the working chamber is fixedly connected with a grinding plate. The fully automatic polishing machine for the conical surface of the plug valve can meet the polishing requirements of the conical surface of plug valves of different specifications, and effectively improves the polishing application scope of the fully automatic polishing machine for the conical surface of the plug valve.

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 lifting type three-way plug valve comprises a valve body, a valve cover and a valve rod, the valve cover is arranged at the upper end of the valve body, and the lifting type three-way plug valve is characterized in that a three-way flow channel and a plug cock for switching the flow channel are arranged in the valve body, the valve rod is arranged on the valve cover in a rotating and lifting penetrating mode, the lower end of the valve rod is connected with the plug cock, and the upper end of the valve rod is connected with a first hand wheel. The valve rod is driven by a first hand wheel to rotate, the first hand wheel is provided with a locking structure, and a lifting mechanism is arranged on one side of the valve rod. The utility model realizes the beneficial effect of zero abrasion of a sealing pair, and has the advantages of reliable sealing, small opening and closing torque, long service life and the like.

The utility model relates to the technical field of under-pressure plugging, and discloses a plugging device for a high-temperature pipeline, which comprises a plugging machine, a pull rod is connected in the plugging machine in a sliding manner, the lower part of the plugging machine is abutted against a plugging combiner, the lower part of the plugging combiner is abutted against a plugging valve, the lower part of the plugging valve is abutted against a plugging four-way pipe, and the plugging four-way pipe is connected with the plugging machine in a sliding manner. The left side and the right side of the interior of the plugging four-way pipe are fixedly connected with pipes to be plugged, the lower end of the pull rod is in threaded connection with a connector, the interior of the connector is slidably connected with the upper end of a connector, the lower portion of the connector abuts against a plugging rod, and the plugging rod is slidably connected to the middle of the interior of the plugging four-way pipe. According to the plugging device, the plugging rod can be pushed into the plugging four-way pipe through the connector to complete plugging through cooperation among the plugging machine, the pull rod, the connector and the connector, the multiple locking rods and the multiple locking blocks can prevent the plugging rod from moving, and therefore installation of the plugging rod is completed.

The invention provides a multistage hard sealing eccentric plug valve, and relates to the field of valves. A plug valve cover is arranged on the top end surface of the plug valve body; a plug valve rod is arranged in the plug valve cover; the upper part of the plug valve rod is fixedly connected with a control handle; an eccentric plug body is arranged at the lower part of the plug valve rod; the eccentric plug body is arranged in the plug valve body; the left part of the plug valve body is in threaded connection with an internal thread valve cavity; the internal thread valve cavity is aligned with the eccentric cock body in position; and two groups of mounting threaded holes are symmetrically formed in the outer part of the plug valve body in an annular array shape. When a limiting vertical plate makes contact with an auxiliary base, a stop base can penetrate through an auxiliary groove and extrude a limiting wedge block, then through a series of transmission, the limiting wedge block is inserted into the stop groove to limit a plug valve rod, and the problems that when a worker operates in a narrow space, an adjacent valve handle is likely to be touched by mistake, unexpected opening and closing of a valve are caused, and the working efficiency is high are solved. And the abrasion of the eccentric plug valve is accelerated.

The invention relates to the technical field of coke oven heating, in particular to an economical single-hole combustion chamber temperature adjusting device and a control method. The input end of each first heating gas unit and the input end of each second heating gas unit are connected with a heating gas main pipe; the output end of each first gas heating unit and the output end of each second gas heating unit are connected with the corresponding combustion chamber, one end of each adjusting unit is connected with the corresponding first gas heating unit, and the other end of each adjusting unit is connected with the corresponding second gas heating unit. The method comprises the steps of normal working condition control, steam blowing state control and maintenance state control. The device has the advantages that the two heating gas main pipes are communicated, the flow regulation of the two gas heating pipes in the same combustion chamber can be completed by adopting one regulating valve, and online maintenance and manual regulation can be realized by changing the opening position of the T-shaped plug valve; the adjusting valves are connected with the stop valves through the three-way connectors respectively, and the adjusting valves can be detached at any time when breaking down.

The utility model relates to a sleeve-type plug valve, comprising a valve body, a plug is rotatably connected inside the valve body, a cover plate is fixed on the top of the plug, a sealing mechanism is provided inside the valve body, a fixing mechanism is provided on the valve body, and a valve stem is rotatably connected to the top side of the cover plate; the sealing mechanism comprises a movable groove provided on the bottom side of the inner wall of the valve body, two movable rods are slidably connected inside the movable groove, and a first spring is sleeved on the outer surface of the movable rod. The sleeve-type plug valve, by providing a sealing mechanism inside the valve body, can convert the hard seal between the valve body and the plug into a soft seal through a sealing gasket, while ensuring the sealing effect, reducing the difficulty of processing the valve body and the plug, reducing the production cost, and by providing a fixing mechanism on the valve body, there is no need to fix the cover plate on the valve body with parts such as screws, thereby no need to use tools such as screwdrivers to disassemble the parts, thereby improving the maintenance efficiency of the staff.

The partition bin with the novel gate valve comprises a stock bin, the gate valve, a transition section and a blockage clearing machine which are sequentially connected from top to bottom, the interior of the stock bin is divided into two parts by arranging a partition plate assembly in the vertical direction, and the partition plate assembly is formed by welding steel pipes and steel plates in a staggered mode; the gate valve comprises a discharging port and valve plate arrangement areas located on the two sides of the discharging port, the discharging port is provided with a supporting pipe in the radial direction and corresponds to the bin outlet divided into two parts in a matched mode, and two guide grooves are formed in the inner wall of the discharging port in the direction facing the valve plate arrangement areas. Valve plates are arranged in the valve plate arrangement areas respectively and freely move in the guide grooves by being connected with a reciprocating power mechanism, and the two valve plates can be driven by the reciprocating power mechanism to be opened and closed at the same time or any valve plate can be opened and closed. The blockage clearing machine arranged at the outlet of the transition section can achieve blockage clearing and meet the requirement for rapid feeding. According to the utility model, not only is the service life of the partition plate prolonged, but also the used gate valve is opened on one side or on two sides, so that the single-side or double-side blanking requirement of the partition bin is met, the normal production work in the production peak period is ensured, and the occupied space is smaller.

A universal cap for both male and female connections includes configuration of structural elements allowing the cap to be opened at either end. Optionally, an inner wall feature allows each end of a cap structure to function as its own cap, or perform a separate capping function. For example, should one end of the cap structure be in use, and the other end of the cap structure be open to air, the end of the cap structure in use, or performing the capping function, is not compromised. Optionally, dual ended cap structure includes features designed to maintain the pressure in a closed system, for both the male and female luer lock ends.

The utility model relates to the technical field of coke oven heating, in particular to a mixed gas heating single-hole combustion chamber temperature adjusting device, which is characterized in that the input end of each heating gas unit and the input end of each adjusting unit are respectively connected with a mixed heating gas main pipe, and the output end of each heating gas unit is connected with a corresponding waste gas shutter; the first output end and the second output end of each adjusting unit are connected with the output ends of the adjacent coal gas heating units respectively, and the adjusting units are arranged on the corresponding adjusting coal gas pipelines. The utility model has the advantages that the plug valve A and the plug valve B can be automatically switched in adjacent switching periods by utilizing the switching transmission brace of the existing switch without additionally arranging a transmission device, so that the cost is saved; the plug valves A and B and the exchange plug cocks A and B are located at the same horizontal height, the crank lengths of the cranks A and B and the exchange plug cocks A and B are the same, it is guaranteed that the plug valves A and B and the exchange plug cocks A and B achieve full opening and full closing at the same time, the structure is simple, and implementation is easy.

The invention discloses a quick connector for a server host liquid cooling system, and belongs to the technical field of fluid pipeline connecting pieces. Which comprises a male plug mechanism and a female plug mechanism, and is characterized in that the male plug mechanism comprises a male plug shell, a positive hollow insertion column, a locking sleeve, a male plug valve element and a male plug valve element reset spring; the female plug mechanism comprises a female plug shell, a sliding sleeve, a female plug valve element and a valve sleeve reset spring. When the right end of the positive hollow insertion column is in an insertion matching state with the left end of the female plug shell cavity, fluid used for cooling flows in from the right end port of the female plug shell cavity, sequentially passes through the female plug valve core, the sliding sleeve cavity of the sliding sleeve and the positive hollow insertion column cavity and flows out from the drawer matching connector cavity of the cooling device to form circulating backflow. The valve has the advantages that flow resistance is small, and adverse factors that in the prior art, due to the fact that a fluid flow channel is located between the inner wall of the shell and the valve element, fluid flow resistance is large, and turbulent flow and vortex are likely to be generated can be avoided; cleaning is facilitated, and the leakage probability is reduced.

The invention relates to the technical field of commercial spaceflight, in particular to a self-repairing liquid metal heat pipe for commercial spaceflight, which comprises a polyether-ether-ketone composite pipe, gallium bismuth zinc liquid gold, a micro-nano repairing film, a main hot runner, a pressure detector, a standby hot runner and an emergency plugging valve, and the main hot runner is an axial through channel in the polyether-ether-ketone composite pipe, and the standby hot runners are annularly and circumferentially arrayed along the inner wall of the main hot runner. Compared with heat conduction in the prior art, medium leakage is stopped through cooperative plugging in a damaged scene, so that the heat conduction efficiency is improved, and the service life of the heat exchanger is prolonged. And meanwhile, the detector is in signal linkage with the plugging valve, a heat transfer loop is rapidly switched in the case of serious damage, the continuous and stable thermal control function is achieved, and therefore the on-orbit operation life of a spacecraft is further prolonged.

The invention relates to the technical field of testing devices, in particular to a testing device for plug valve machining, the position of a rack is adjusted through a position adjusting piece in a variable-diameter positioning piece, then the transmission stroke of meshing of the rack and a corresponding gear is adjusted, and the corresponding rack transmission stroke enables the gear to rotate by a corresponding angle; the worm drives the corresponding worm gear to rotate by a corresponding angle, so that the port of the variable-diameter valve body is limited and fixed, and the limitation that a traditional testing device is inconvenient to carry out sealing detection on the variable-diameter three-way valve body is broken through; the centering supporting piece and the variable-diameter positioning piece work cooperatively, and stable supporting is provided for the valve. The first hydraulic cylinder and the second hydraulic cylinder drive the first bearing seat and the push plate correspondingly and are matched with the side plates and the back plate to position and support the valve in multiple directions. In the testing process, even if the other group of valve ports perpendicular to the two groups of valve ports are sealed by applying pressure, the displacement of the valve can be effectively reduced, and the accuracy of the sealing effect of the valve ports is ensured.

The invention discloses an underground sand prevention and blockage removal device and method and belongs to the technical field of oil exploitation, the device comprises a rotating core assembly and a sand prevention screen pipe, an end cover is arranged at the top end of the sand prevention screen pipe, and the rotating core assembly penetrates through the end cover and is arranged in the sand prevention screen pipe in a penetrating mode; the rotating core assembly comprises a central rotating shaft, a sliding block plug valve and a rotating blade, the sliding block plug valve is slidably arranged on the central rotating shaft close to the end cover, the rotating blade is fixedly arranged on the central rotating shaft below the sliding block plug valve, a central channel is formed in the center of the end cover, and a plurality of peripheral channels are annularly formed in the end cover around the central channel; if filter holes of the sand control screen pipe are gradually blocked by sand, the pressure of fluid in the sand control screen pipe is reduced, and the normal oil extraction working condition is gradually changed into the abnormal blocking working condition, under the condition that the oil extraction equipment does not need to stop working and production, the center rotating shaft only needs to drive the rotating blades to rotate, back flushing is formed in the sand control screen pipe, and the oil extraction efficiency is greatly improved. And sand blocking the filter holes of the sand control screen pipe is discharged, so that blockage removal can be realized.

The utility model discloses a plug cock convenient to install, and belongs to the technical field of plug valve installation. The plug cock convenient to install comprises a valve body, a plug cock body is arranged in the valve body, an adjusting rod is arranged at the upper end of the plug cock body, an indicating ring is installed on the adjusting rod, the middle of a connecting plate B is sleeved with a rotating ring, the rotating ring is rotationally connected with the connecting plate B, a groove is formed in the outer wall of the rotating ring, a through hole is formed in the middle of the connecting plate B, and a protruding ring is arranged in the through hole. A cavity is formed between the protruding ring and the inner side wall of the groove, a limiting assembly is arranged on the indicating ring, the limiting assembly penetrates through the rotating ring and extends into the cavity, a positioning block is arranged in the cavity, and the limiting assembly can make contact with the positioning block. When the cock body is rotated, the indicating ring and the rotating ring rotate along with the cock body, so that the rotating angle can be observed conveniently, and even if the indicating ring is abraded, observation of the rotating angle of the cock body cannot be affected.

The present invention discloses a water-cooled plug valve for a single crystal furnace that is easier to close or open, has better sealing performance, and the water pipe is not prone to loosening or leaking. The adopted technical solution includes: a valve housing, a plug slidably disposed in the valve housing, and a cylinder disposed outside the valve housing to drive the sliding of the plug. The rear end of the valve housing is provided with a rear cover, and the upper and lower ends are respectively provided with a first flange and a second flange. The bottom of the plug is connected with a water-cooled shaft through a support plate, the surface is provided with a first water-cooling channel and a first sealing plate covering the first water-cooling channel, and at least two first water pipe joints communicating with the first water-cooling channel are provided on the side surface. The rear end of the water-cooled shaft extends out of the rear cover and is connected with the cylinder.

The gate valve comprises a valve body and a valve element arranged in the valve body in a sliding mode, the valve body is provided with a valve port, the limiting piece is arranged in the valve element, the limiting piece is provided with an anti-vibration structure, at least part of the limiting piece protrudes out of the outer portion of the valve element, and the valve element is arranged in the valve port. The inner side of the valve port is provided with an abutting face which impacts the limiting piece, and the limiting piece moves close to or away from the abutting face relative to the valve body through the valve element so as to close or open the valve port. The limiting piece collides with the abutting face and generates elastic deformation through the anti-vibration structure. According to the gate valve, the anti-vibration structure is arranged at the end, subjected to front impact, of the connecting part, the anti-vibration structure generates elastic deformation under the impact force, so that the buffering effect on the impact force is achieved, vibration and noise are reduced, and the limiting piece and the gate valve are protected advantageously.

The utility model discloses an infrared burner and an infrared gas stove. The infrared burner comprises a burner body which is provided with an inner ring fire gas channel, a middle ring fire gas channel arranged on the outer side of the inner ring fire gas channel and an outer ring fire gas channel arranged on the outer side of the middle ring fire gas channel. The plug valve comprises a valve seat and a valve element, a valve cavity is formed in the valve seat, a first air inlet hole, a first inner ring air outlet hole, a first middle ring air outlet hole and a first outer ring air outlet hole which are communicated with the valve cavity and the exterior of the valve seat are formed in the valve seat, the valve element is arranged in the valve cavity, and a ventilation cavity is formed in the valve element. A second air inlet hole, a second inner ring air outlet hole, a second middle ring air outlet hole and a second outer ring air outlet hole are formed in the inner wall of the ventilation cavity, the second air inlet hole communicates with the first air inlet hole to form an air inlet channel, and the second inner ring air outlet hole and the first inner ring air outlet hole correspondingly form an inner ring air outlet channel; and the second middle ring air outlet hole and the first middle ring air outlet hole correspondingly form a middle ring air outlet channel.

The present application relates to a kind of cock valve seat quick assembly process, comprising the following steps: the small end of guide sleeve is installed at the flange of cock valve body;First, valve seat is loaded into the conical shaft hole of guide sleeve from above guide sleeve, then valve seat is pressed into guide sleeve using the big end of pressure block, finally valve seat is pressed into the inner cavity of cock valve body using the small end of pressure block;First, split support block assembly is placed into valve seat, then wedge-shaped block is inserted into wedge-shaped slot between two split support blocks, split support block assembly is opened by pressing wedge-shaped block, so that valve seat is opened;First, cone plug is installed in valve seat, then cone plug is pressed by external force, so that valve seat is opened, finally cone plug is pulled out.The present application ensures the relative position accuracy of valve seat and valve body, valve seat and pressure block, reduces unsafe factors, can guarantee the sealing performance of valve seat, and effectively improves the assembly efficiency of valve seat.

The utility model discloses a plug valve capable of adjusting a plug cock up and down, relates to the technical field of plug valves, and can improve the sealing performance by adjusting the up-down position of the plug cock to adapt to different working conditions. A bottom hole is formed in the bottom of the valve body, a cover plate covers the bottom hole, an adjusting bolt is arranged on the cover plate in a threaded mode, the adjusting bolt penetrates to the flow channel cavity from the outside of the cover plate, a lifting cushion block is further movably installed on the cover plate, and the lifting cushion block abuts against the top end of the adjusting bolt and abuts against the bottom of the cock. The valve rod is sleeved with a limiting gland, the limiting gland is in threaded connection with the valve deck through an adjusting stud, the valve rod is provided with a step, and the limiting gland abuts against the step in a matched mode. When the adjusting bolt is rotated, the adjusting bolt moves up and down in the cover plate, the lifting cushion block abuts against the top end of the adjusting bolt and abuts against the bottom of the plug cock, and therefore the plug cock can be driven to move up and down in the valve body, the up-down position of the plug cock is adjusted, and the sealing performance is improved.

The utility model discloses a petroleum coke auxiliary conveying mechanism, and mainly relates to the field of petroleum coke conveying equipment. Comprising a conveying bin body and a driving part, an eccentric wheel mechanism connected with the driving part is rotationally connected with a driving connecting rod, a plurality of spring plates are obliquely arranged on the bottom face of the conveying bin body, the spring plates are connected to the same vibration frame body, and the vibration frame body is in sliding connection relative to an equipment rack; the vibration frame body is rotationally connected with the other end of the driving connecting rod; a gate valve is arranged at the position of a discharging port of the conveying bin body, a valve body leveling mechanism is arranged at the position of the gate valve in a matched mode, and when the valve body leveling mechanism is arranged above the gate valve in a matched mode, the valve body leveling mechanism is flush with the conveying face in the conveying bin body. The utility model has the beneficial effects that the problem of accumulation of a large amount of calcined petroleum coke at the arrangement position of the gate valve can be avoided, so that the normal conveying of the calcined petroleum coke by the vibration conveying platform is ensured.

The invention provides a micro-plastic filling permeation immersion type interface coupling reaction experiment device which comprises a rectangular frame, a reaction column cylinder, a T-shaped strip and an iron convex block, a piston rod is movably arranged in the reaction column cylinder, a material guide pipe is arranged at the upper end of the right side of the reaction column cylinder, and a micro plug valve is arranged at a liquid inlet in the lower end of the reaction column cylinder. Guide grooves are formed in the left side and the right side of the interior of the rectangular frame, a magnetic block is installed on the upper portion of the interior of the rectangular frame, a U-shaped iron frame is fixed to the upper end of the right side of an iron protruding block, and a positioning rod is installed at the right end of the lower portion of the U-shaped iron frame in a penetrating and sliding mode. And the reaction solution uniformly permeates through the filling layer by utilizing the negative pressure of the driving core, so that the full-domain immersion type full contact between the micro plastic particles and the reaction solution is realized.