8282results about "Slide valve" patented technology

The invention discloses a use monitoring method and system for a knife gate valve, and relates to the technical field of knife gate valve monitoring, and the method comprises the steps: integrating a multi-mode sensor array at the root of a valve rod of the knife gate valve, an adjacent region of a sealing surface and in a valve cavity flow channel, and collecting multi-source signals in real time; performing dynamic fusion processing on the multi-source signal, and determining a feature extraction algorithm combination based on the current valve rod temperature and historical working condition data to extract a sealing surface damage feature, a transmission chain wear feature and a particle impact feature; constructing a dynamic anomaly judgment model, updating a clustering boundary of a vibration and torque characteristic space in real time, and performing decoupling diagnosis on a sealing surface dry friction risk, thread clearance expansion and gear wear in combination with time-frequency domain fluctuation analysis of a gear meshing frequency harmonic attenuation rate and an angular acceleration; and generating a three-level maintenance strategy according to the diagnosis result, dynamically adjusting the output torque of the execution mechanism and optimizing the switching frequency of the valve.

In one instance, a dynamic slab gate valve is disclosed for use in controlling fluid flow through pipelines and other tubulars, wherein the dynamic slab gate valve has a dynamic seat assembly and a dynamic skirt assembly. The dynamic seat assembly is urged toward a gate of the dynamic slab gate valve by an energizer to maintain a seal between a seat and the gate. The dynamic skirt assembly is urged toward the gate of the dynamic slab gate valve by an energizer to maintain a seal with the gate. Improved seals are provided. Other valves are disclosed herein.

In one instance, a dynamic slab gate valve includes a valve body having a through-bore formed therethrough; a round gate cavity formed within the valve body and orthogonal to and bisecting the though-bore; and at least two retrofit slabs located within the round gate cavity. The retrofit slabs form a slab gate cavity having two parallel planar sides. A slab gate is disposed within the slab gate cavity. In another instance, a method for retrofitting a round gate valve includes the steps of removing a round gate from a round gate cavity of the round gate valve; installing a plurality of retrofit slabs within the round gate cavity to form a slab gate cavity; and installing a slab gate within the slab gate cavity. Other instances include seat assemblies and dynamic skirt assemblies.

In one instance, a dynamic slab gate valve includes a valve body having a through-bore formed therethrough; a round gate cavity formed within the valve body and orthogonal to and bisecting the though-bore; and at least two retrofit slabs located within the round gate cavity. The retrofit slabs form a slab gate cavity having two parallel planar sides. A slab gate is disposed within the slab gate cavity. In another instance, a method for retrofitting a round gate valve includes the steps of removing a round gate from a round gate cavity of the round gate valve; installing a plurality of retrofit slabs within the round gate cavity to form a slab gate cavity; and installing a slab gate within the slab gate cavity. Other instances include seat assemblies and dynamic skirt assemblies.

The invention provides a pneumatic operated directional valve and an energy-saving hydraulic station with the pneumatic operated directional valve. The pneumatic control valve comprises a pneumatic control valve shell and a pneumatic control valve element. The pneumatic control valve element is arranged in the pneumatic control valve shell in the length direction of the pneumatic control valve shell in a sliding mode. The pneumatic control valve shell is provided with an air inlet P, a first air outlet A, a second air outlet B, an exhaust port R, a pneumatic control loading port Y1 and a pneumatic control unloading port Y2. After the forward sliding side of the pneumatic control valve element is unloaded through the pneumatic control unloading port Y2, the air inlet P injects air into the reverse sliding side of the pneumatic control valve element, and the pneumatic control valve element can slide in the pneumatic control valve shell in the forward direction. The pneumatic control loading port Y1 and the pneumatic control unloading port Y2 are used for loading and unloading the forward sliding side of the pneumatic control valve element correspondingly, the stability and continuity of reverse sliding of the pneumatic control valve element can be achieved through loading, the forward sliding resistance of the pneumatic control valve element can be reduced through unloading, and therefore the pneumatic control valve element is prevented from being clamped and stopped in the reversing process, and the reversing efficiency of the pneumatic control valve element is improved. And the situation that the pneumatic control valve element stops at the middle position is avoided.

The invention discloses a gate valve automatic pressure relief control system and a gate valve, and belongs to the technical field of valve safety control systems.The gate valve automatic pressure relief control system comprises a valve assembly which comprises a valve body and a valve element, the valve element is installed in the valve body, and a pressure relief hole is formed in the valve element; the pressure relief assembly comprises a sealing column, a pressure bearing piece and a driving piece, the sealing column is arranged in the valve element in a sliding mode, the driving piece and the pressure bearing piece are both installed on the valve element, one end of the driving piece is connected with the sealing column and applies acting force for blocking the pressure relief hole to the sealing column, and one end of the pressure bearing piece bears fluid pressure of the inflow end of the valve element; the pressure sensor is used for monitoring the fluid pressure of the inflow end of the gate valve, once the fluid pressure exceeds the set safety pressure, hydraulic oil in the hydraulic pipe is discharged through the hydraulic system, the pressure bearing piece drives the sealing column to slide under the action of the fluid pressure, the flow guide hole communicates with the pressure relief hole, and automatic pressure relief is achieved.

In one instance, a dynamic slab gate valve is disclosed for use in controlling fluid flow through pipelines and other tubulars, wherein the dynamic slab gate valve has a dynamic seat assembly and a dynamic skirt assembly. The dynamic seat assembly is urged toward a gate of the dynamic slab gate valve by an energizer to maintain a seal between a seat and the gate. The dynamic skirt assembly is urged toward the gate of the dynamic slab gate valve by an energizer to maintain a seal with the gate. Improved seals are provided. Other valves are disclosed herein.

A self-heat dissipation gate valve, comprising a valve body (1), a valve cover (2), a gate plate (3), and a valve rod (4). The valve body comprises a channel (11) and a valve seat (12) located on the channel. The valve cover is fixedly connected to the valve body, and a plurality of cooling fins (21) are arranged at intervals on the outer side wall of the valve cover. The gate plate is located in an inner cavity of the valve body. One end of the valve rod is connected to the gate plate, and the other end of the valve rod extends upwards until the other end of the valve rod partially extends out of the valve cover. The gate plate is configured to be driven by the valve rod to move to be mated with the valve seat to block the channel or is configured to be driven by the valve rod to move in a direction away from the valve seat to unblock the channel. During use, the high-temperature medium in the channel of the valve body can transfer heat to the valve body and the valve cover, and the plurality of cooling fins arranged on the valve cover can diffuse heat into the surrounding environment, so that the working performance of the gate valve is prevented from being affected by the excessively high temperature of the gate valve.

The utility model discloses a fluid connector, and relates to the technical field of fluid communication, the fluid connector comprises at least two valve seats with communication channels and valve cores which are rotatably arranged on the opposite sides of the two valve seats and used for opening and closing the communication channels, and the valve cores are provided with communication parts; the two valve elements are provided with a restraining mechanism to limit synchronous rotation of the two valve elements, the adjacent combination faces of the two valve elements are in contact sealing, and a position state enables the communicating part to communicate with the communicating channels in the two valve seats. According to the fluid connector, only two relative rotation positions exist, namely the two valve elements rotate relative to the two valve seats correspondingly, the sealing performance of the fluid connector can be guaranteed only by forming dynamic sealing at the two positions, and therefore relative rotation between the valve elements and the valve seats can be reduced, use of sealing assemblies can be reduced, and the cost is reduced. Therefore, the overall sealing performance of the fluid connector can be improved, the sealing reliability of the fluid connector is higher, and the machining cost and the machining difficulty can be reduced.

The utility model relates to the field of valves, and provides a multi-way valve and a vehicle thermal management system. A cavity is formed in the valve body, and a plurality of connectors communicated with the cavity are formed in the surface of the valve body. The valve element is installed in the cavity, a plurality of flow channels are formed in the valve element, and the valve element is movably connected with the valve body so that the valve element can be switched between at least two different stations. When the valve element is located at different stations, at least two connectors are communicated through the flow channel. The flow channels comprise the first type of flow channels and the second type of flow channels, the first type of flow channels are located on the surface of the valve element, the second type of flow channels are located in the valve element, end openings of the second type of flow channels are located on the surface of the valve element, and the first type of flow channels are configured to be capable of communicating two adjacent connectors. And the second type of flow channels are configured to be capable of communicating two non-adjacent interfaces. The utilization rate of the space on the valve element can be increased by arranging the two layers of flow channels, and therefore the size of the multi-way valve is reduced.

A multi-way valve adapted to control a flow of fluid to different thermal fluid circuits includes a valve housing, a valve flow controller, and a sealing system. The valve flow controller is arranged in the valve housing to control flow through the valve housing. The sealing system is configured to seal between the valve housing and the valve flow controller.

The invention belongs to the technical field of gate valves, and particularly relates to a scouring-resistant and corrosion-resistant gate valve which comprises a valve body, a valve cover is fixedly mounted on the valve body, a control component is arranged in the valve cover and controls a valve rod to rotate in the valve cover, the lower end of the valve rod is in threaded connection with a gate plate, and the gate plate slides in the valve body and the valve cover. The supporting component is arranged on the outer side of the valve body, the valve rod is controlled to rotate through the control component, the valve rod drives the gate plate to ascend or descend, then the gate valve is opened or closed, fluid is controlled to be conducted or blocked, and a ceramic sealing face is arranged at the joint of the interior of the valve body and the gate plate and has a certain corrosion-resistant effect. The filtering part arranged in the valve body can intercept and filter impurities in fluid, the corrosion resistance of the gate valve is further improved, in addition, the filtering part has the effect of reducing the flow speed of the fluid, impact of the fluid on the gate plate is reduced, and the valve body can be fixed to the ground or a building through the supporting part arranged on the outer side of the valve body. And the pressure of the gate valve on the pipeline is reduced.

The utility model discloses a fluid connector, and relates to the technical field of fluid communication equipment.The fluid connector comprises at least two valve seats with communication channels and valve elements rotationally arranged on the opposite sides of the valve seats and used for opening and closing the communication channels, a positioning groove is formed in one valve element, and a positioning part is correspondingly arranged on the other valve element; the positioning part extends into the positioning groove and is axially interfered and circumferentially limited with the valve core with the positioning groove after the two valve cores relatively move, and the two valve cores are circumferentially limited to synchronously rotate, so that the communicating part on the valve cores is communicated with the communicating channels on the two valve seats. Synchronous circumferential transmission is formed between the two valve elements, so that associated structures between the valve elements and the valve seat are reduced, and through the synchronous circumferential transmission between the valve elements, the movement precision of the valve elements in the on or off movement can be improved, so that the conditions of dislocation of a communicating part and the like are effectively avoided, and the service life of the valve element is prolonged. Motion errors caused by the fact that the valve seat serves as an intermediate transmission component are reduced.

The utility model discloses a self-cleaning ore pulp knife gate valve, which relates to the technical field of valves, and comprises a valve body, a valve plate, a valve rod and a driving mechanism, the valve body is provided with a medium flow channel, the valve plate is inserted in the medium flow channel, the upper end of the valve body is provided with a through groove, the upper end of the valve plate penetrates through the through groove and is connected with the valve rod, the upper end of the valve rod is connected with the driving mechanism, and the valve rod is connected with the driving mechanism. A valve seat assembly is arranged in the medium flow channel and comprises an elastic sealing ring and an elastic annular scraper, the section of the front end of the elastic sealing ring and the section of the front end of the elastic annular scraper are in an arc shape and extend in the opposite directions, and the elastic sealing ring is in sealing fit with the valve plate. When the valve plate moves up and down, the elastic annular scraper can scrape silt, particulate matter and the like attached to the surface of the valve plate, the valve plate is kept clean, the service life of the valve is prolonged, the elastic sealing ring conducts elastic sealing compensation on the sealing face, the sealing face and the valve plate are kept sealed all the time, and the sealing reliability of the valve is guaranteed.

The invention relates to the technical field of bathroom equipment, and particularly discloses a water-storage-free shower head faucet which comprises a shower body, a lower water outlet valve element, a top-spraying water outlet valve element and a shower head water outlet valve element are installed on the shower body and communicate with a lower water outlet head, a top-spraying water outlet head and a shower head water outlet head correspondingly, and the shower head water outlet valve element communicates with the top-spraying water outlet valve element and the shower head water outlet valve element. The lower water outlet valve element, the top spraying water outlet valve element and the shower head water outlet valve element are all communicated with the temperature adjusting water mixing valve element, a drainage channel communicated with the lower water outlet head is arranged in the shower body, and drainage openings are formed in the top spraying water outlet valve element and the shower head water outlet valve element. Residual water in the top spraying water outlet head and the shower head water outlet head can be sequentially drained through the water drainage opening, the water drainage channel and the lower water outlet head under the action of gravity and the constant suction principle, so that no residual water exists in a pipeline, the problem of residual water leakage is solved, a shower pipe and a shower head pipe are prevented from being frozen to crack in cold weather, and the phenomenon that when a user opens a shower faucet, the shower head is damaged is avoided. Cold water comes out for a long time.

A cam-driven valve system comprises a valve body designed to define a multitude of fluid channels and support an array of sliding valves within those channels, thereby controlling the fluid flow. The system includes a multitude of cams mounted on a camshaft. The camshaft is arranged such that each cam is associated with a corresponding sliding valve. Rotation of the camshaft causes the valves to be actuated via the cams. The cams on the camshaft are shaped and sized differently.

The utility model provides a self-positioning and antifouling flat gate valve which comprises a valve body, a valve cavity and a medium channel communicated with the valve cavity are arranged in the valve body. A left valve seat and a right valve seat are arranged at the intersection of the medium channel and the valve cavity, a gate plate is connected between the left valve seat and the right valve seat, the gate plate is matched with the left valve seat and the right valve seat in a sealing mode, and the gate plate is driven by a valve rod to move up and down. A spring hole is formed in the position, in axial contact with the valve body, of the valve seat, and a spring is installed in the spring hole. A positioning block is arranged in the valve body and is coaxial with the gate plate in the longitudinal direction, and a positioning groove matched with the positioning block is formed in the bottom of the gate plate. And the scraping plate is installed in the valve body and arranged at the upper end of the valve seat, and the valve rod is arranged on the scraping plate in a penetrating mode. The spring is arranged at the axial contact position of the valve seat and the valve body, sealing of the valve seat and the gate plate is kept, abrasion to the sealing face of the valve seat is reduced, and the service life of the gate valve is prolonged. And the scraping plate removes dirt on the surface of the gate plate, and the sealing performance of the gate valve is improved.

The invention discloses a flat gate valve, and relates to the technical field of gate valves, in particular to a flat gate valve which comprises a gate valve body, the gate valve body comprises a valve body and a cover plate arranged on the upper surface of the valve body, and a gate plate capable of moving up and down and a graphite packing used for sealing the gate plate are arranged in the valve body. Through the arrangement of an extrusion plate, a drainage channel and a power part, leaked liquid can flow into a gathering cavity from the drainage channel corresponding to the leaked liquid when one position of the graphite packing leaks liquid, and when a gate plate moves up and down, an extrusion rod can be promoted to be inserted into the gathering cavity, so that the liquid collected in the gathering cavity is extruded, and the liquid in the gathering cavity can be collected. And finally, the extrusion plate can press the leakage point of the graphite packing, so that the graphite packing is promoted to expand towards the two sides to improve the sealing performance between the graphite packing and the gate plate, communicated small gaps and holes can be blocked, and therefore the service life of the graphite packing can be prolonged, and meanwhile the sealing performance between the graphite packing and the gate plate can be improved. And the part without the leakage point of the graphite packing cannot be extruded.

The utility model discloses a low-vibration high-cleanliness vacuum valve which comprises an air cylinder barrel, an air cylinder seat is arranged at the lower end of the air cylinder barrel, a top cover is arranged at the lower end of the air cylinder seat, a valve shell is arranged at the lower end of the top cover, a valve rod is arranged in the air cylinder barrel, the top end of the valve rod is fixedly connected with the air cylinder barrel, and the bottom end of the valve rod is fixedly connected with a connecting block. The low-particle performance of the valve is that the generation of low particles is reduced to the greatest extent by preventing materials from passing through metal friction in a cavity of the valve port; the low vibration performance is achieved, and the opening and closing process of the valve is more stable by additionally arranging guide rings at all axial movement positions; the integral structure of the valve adopts the modular design, so that welding among parts is avoided, and the parts are easier and more convenient to disassemble; the air cylinder and the piston are compact in structure, and the unique air cylinder and piston structure greatly optimizes the space requirement for installation of the vacuum valve.

The present invention provides a quick connector for a hydrogen tube bundle vehicle, comprising: a male end, which includes a male gun seat, a gas distribution valve and a pilot valve; a female end, which includes a female gun seat, a gun head sleeve, an outlet valve core and a main valve core, the gun head sleeve is fixedly connected to the female gun seat through a gun body, and the gun body is provided with a gas replacement channel; wherein, in a first state, the pilot valve is closed to make the male end self-sealed, and the outlet valve core and the main valve core are closed to make the female end self-sealed, and in a second state, the gun head sleeve is aligned with the male gun seat and fits together, and the gas replacement channel can be connected to the internal channel of the female end through the main valve core to perform gas replacement, and the outlet valve core can be fit together with the end face of the pilot valve, the pilot valve, the outlet valve core and the main valve core are all opened to connect the internal channels of the male end and the female end, so that the quick connector can be opened under pressure, and the first state and the second state can be switched, so that the pressurized connection and pressurized disconnection of the male end and the female end can be completed.

The invention discloses a vacuum transmission valve and semiconductor thin film equipment, the semiconductor thin film equipment comprises a reaction chamber, a transmission chamber and a vacuum transmission valve, and the vacuum transmission valve is installed between the reaction chamber and the transmission chamber. The vacuum transmission valve comprises a valve box, a valve plate fixing shaft, a first sealing valve plate, a second sealing valve plate and a driving assembly, and the valve plate fixing shaft, the first sealing valve plate, the second sealing valve plate and the driving assembly are arranged in the valve box. The first sealing valve plate and the second sealing valve plate are detachably and fixedly arranged on the valve plate fixing shaft back to back in the radial direction of the valve plate fixing shaft. The driving assembly is used for driving the valve plate fixing shaft to drive the first sealing valve plate to move towards the first opening so as to seal the first opening, and driving the second sealing valve plate to move towards the second opening so as to seal the second opening. The two-way sealing valve plate integrally mounted on the valve plate fixing shaft is driven by the driving assembly to move to achieve two-way sealing, and the occupied space is reduced.

The utility model relates to the technical field of vacuum valves, in particular to a two-section type rectangular valve which comprises a valve body, a valve plate is arranged on the valve body, a first driving assembly used for driving the valve plate to move is arranged on the valve body, and a second driving piece used for driving the valve plate to move is further arranged on the valve body. The first driving assembly and the second driving piece drive the valve plate to move in the direction perpendicular to each other, and a control assembly used for controlling whether the second driving piece can conduct driving or not is arranged on the valve body. The present application has an effect of reducing the generation of dust particles when forming a vacuum partition.

The invention discloses an underground water collecting device for underground water sample detection, which comprises a fixing frame and a sampling mechanism, the sampling mechanism comprises a sensing part and a collecting part, and the sensing part comprises a mounting cylinder, a sealing head, a spring part and an adjusting part; the collecting part comprises a sampling cylinder, a floating ball and an inner sealing ring; the sealing head is movably and hermetically connected to one side of the bottom of the mounting cylinder; the spring piece is arranged in the mounting cylinder and used for applying pressure to the sealing head, and the adjusting piece is used for adjusting the pressure; the sampling cylinder is fixedly connected with the mounting cylinder, and a sealable discharge outlet is formed in the bottom of the sampling cylinder; a water inlet channel is arranged between the sampling cylinder and the mounting cylinder; the inner sealing ring is movably connected in the sampling cylinder in a sealing manner, and the floating ball is movably arranged in the sampling cylinder and connected with the inner sealing ring. By means of the design, water samples at different depths can be collected, repeated collection is not needed, and the collection efficiency is improved.

A valve assembly including: a hardened insert coupled with a hardened insert carrier; and a valve body coupled with a valve insert, wherein, in a closed configuration of the valve assembly, the valve body contacts a primary sealing surface of the hardened insert and the valve insert contacts an initial sealing surface of a hardened insert carrier to prevent fluid flow through the valve assembly, and, in an open configuration of the valve assembly, the valve body does not contact the primary sealing surface of the hardened insert and the valve insert does not contact the initial sealing surface of the hardened insert carrier to allow fluid flow through the valve assembly, wherein the hardened insert carrier comprises a reciprocating element, a replaceable valve carrier (RVC), or a pump fluid end body.

The utility model discloses a connecting end of a fluid connector and the fluid connector, and relates to the technical field of connectors. The connecting end comprises a connecting part and an operating part, the connecting part comprises a valve seat and a valve movably connected to the valve seat, the operating part is movably connected to the outer side of the valve seat, the valve is connected with the operating part through a control hole in the valve seat, and the operating part can drive the valve to move when moving so as to control opening and closing of a communicating channel in the valve seat. According to the connecting end, the operating part is arranged outside the valve seat, when the communicating channel needs to be opened and closed, a user can drive the operating part to drive the valve to act, the valve seat does not need to be directly driven, and therefore the communicating channel can be opened and closed more conveniently.

The invention relates to the technical field of valves, in particular to an anti-leakage gate valve and a sealing assembly thereof, the sealing assembly comprises a mounting ring, a rigid sealing ring and a first driving assembly, a medium channel is formed in a valve body, a gate plate is arranged in the medium channel in a sliding mode, the gate plate or closes the medium channel, and a valve rod is connected to the valve body. One end of the valve rod is located outside the valve body. The mounting ring and the first driving assembly are arranged, when a rigid sealing ring needs to be replaced, a worker pokes a rotating disc with hands, and through transmission cooperation of a transmission rod, a transmission gear, a transmission gear ring, a tray and a transmission unit, the rigid sealing ring can move in a ring groove along the axis of the ring groove; therefore, the rigid sealing rings on the outermost sides of the two annular grooves can be switched, and due to the fact that workers do not need to disassemble the valve body in the process of replacing the rigid sealing rings, the workload of the workers can be greatly reduced.

An actuator arrangement (1) for an inlet air valve of a compressor system of a mining machine, the actuator arrangement comprises a linear actuator (11) compris- ing a movable element (10), operatively connected via a lever mechanism (6, 7, 8, 9; 6, 7, 8, 9, 91, 92) to a shaft (4) of a closing element (3) of the inlet air valve. A linear movement of the movable element (10) of the linear actuator (11) is transmitted via the lever mechanism to a rotation movement of the shaft (4) of the closing element (3) of the inlet air valve, wherein a transmission ratio of the lever mechanism is configured to vary during a movement of the movable element (10) of the linear actuator (11).

The utility model discloses a high-pressure protection structure for pipeline safety management, which is arranged at the butt joint position of a conveying main pipe and comprises a housing component sleeved on the conveying main pipe and an active pressure relief component capable of switching the communication state of the housing component and the conveying main pipe according to the pressure in the conveying main pipe, the active pressure relief assembly comprises a pressure relief pipe communicated with the main conveying pipe, the pressure relief pipe is sequentially divided into a liquid inlet section, a transition section and a liquid outlet section in the length direction, the liquid inlet section is located in the main conveying pipe, a plugging cock is arranged in the liquid inlet section and the transition section in a penetrating mode, and the communication state between the liquid inlet section and the liquid outlet section is switched through the plugging cock; when the pressure in the conveying main pipe fluctuates greatly, liquid in the conveying main pipe is discharged through the pressure relief pipe, so that pressure relief is achieved, normal operation of the water supply and drainage system is guaranteed, safety and stability caused by pressure over-limit leakage are avoided, and safety management of the water supply and drainage system is facilitated.