3169 results about "Gate 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 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 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.

The invention provides a bipolar splayed magnetron sputtering machine table which comprises a supporting rack, a first main cavity module, a second main cavity module, a transfer cache cavity module, a plurality of processing cavity modules and a feeding and discharging cavity module, the first main cavity module and the second main cavity module are symmetrically arranged, rapid replacement is achieved through a movable conveying rack, and process cavities can be freely combined according to process requirements; diversified process requirements are met; the inclined gate valve design reduces the occupied area, enhances the stress uniformity of the structure and prolongs the service life of equipment; the transfer buffer chamber provides cooling and temporary storage functions, isolates the heat influence of front and rear processes, and ensures the stability of a material treatment environment; the medium flow and the mixing proportion are adjusted in real time through the branch pipelines and the intelligent distribution unit, the process parameters of all the cavities are accurately matched, and energy consumption is reduced.

The invention relates to the technical field of oil exploitation equipment, in particular to a throttling kill manifold with a sand prevention structure, which comprises a first four-way joint and second four-way joints communicated with two sides of the first four-way joint through confluence branch pipes. One side of the first four-way joint is communicated with a main blowout pipeline, and the same side of the second four-way joint on the main blowout pipeline is communicated with a throttling pipeline; a sand prevention structure is arranged in the second four-way joint, a cleaning assembly for cleaning the sand prevention structure is arranged in the confluence branch pipe, a sand collection cylinder assembly is installed on the sand prevention structure, and an overhaul gate valve is installed on the confluence branch pipe. According to the sand prevention structure, fluid entering the throttling pipeline is filtered, the sand prevention structure is cleaned through the cleaning assembly, and the filtering effect of the sand prevention structure is guaranteed.

The invention belongs to the technical field of valve maintenance, and particularly relates to a lifting device for a leakage guide ring of a nuclear island gate valve. The upper end of the supporting screw rod is arranged on a valve yoke frame, the lower end of the supporting screw rod is arranged on the drawing support, the drawing support is installed on a valve rod, the half-and-half type lifting nut is installed at the position of a threaded sleeve at the bottom end of the drawing support in a spliced mode and connected with the threaded sleeve through the set screw, and the half-and-half type lifting loop is connected to the lower end of the lifting nut in a hung mode. The lower end of the lifting screw rod is screwed into the original lifting hole and the new lifting hole of the leakage guiding ring, the height of the lifting loop is adjusted in a rotating mode, the upper end of the lifting screw rod is arranged in a screw hole of the lifting loop and is screwed and fixed through a nut, and the operating handle and the rotation preventing handle are arranged in the lifting nut and operating holes in the periphery of the lifting loop respectively. And the drawing bracket is fixed by connecting the original bolt hole of the valve with the supporting screw rod. On the premise of fully considering the limited operation space, the leakage guiding ring is efficiently detached, meanwhile, the complete effect of the leakage guiding ring is guaranteed, and the leakage guiding ring can be repeatedly used.

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 provides a gate valve pressure balance control method and device, electronic equipment and a storage medium, and relates to the technical field of gate valve pressure control. The method comprises the steps of monitoring a gate valve control signal and a pressure difference between two sides of a gate valve; calculating a gate valve control signal change rate according to the gate valve control signal, and setting a control signal amplitude threshold value and a change rate threshold value; according to the gate valve control signal change rate, the control signal amplitude threshold value and the change rate threshold value, the gate valve switching action is predicted; based on the predicted gate valve switching action, according to the pressure difference of the two sides of the gate valve, the number of balance channels needing to be opened when the pressure balance is achieved on the two sides of the gate valve is judged; the controller is controlled in advance to open the corresponding number of balance channels to balance the pressure on the two sides of the gate valve. According to the gate valve pressure balance control method, the problem that in the prior art, the response speed is insufficient in the aspect of gate valve pressure balance control is solved, and the effects of remarkably improving the pressure balance response speed and effectively restraining hydraulic impact and vibration are achieved.

The invention relates to the technical field of disaster prevention and reduction of civil engineering, in particular to an aqueduct earthquake resistance and disaster reduction system and method based on digital twinning, and the system comprises a data collection module, an earthquake early warning module, a control system, a gate valve control module, a notification module, a 3D visualization module and an aqueduct post-earthquake evaluation module. Through joint detection of the earthquake early warning module and the slave acquisition module, real-time acquisition of aqueduct operation state information and earthquake early warning information is realized, and before destructive earthquake waves arrive, the water quantity in the aqueduct is adjusted through the control module, so that the earthquake response of the aqueduct is minimum. By inputting monitoring data, manual inspection data and earthquake characteristic information into a control system, constructing an aqueduct digital twin model and performing earthquake response simulation, the safety state of the aqueduct structure after the earthquake can be accurately evaluated, so that a post-earthquake aqueduct structure processing scheme is quickly proposed, and a reference basis is provided for earthquake relief decision making.

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.

The utility model discloses a vacuum cooling temporary storage mechanism and thin film deposition equipment, and relates to the technical field of semiconductor equipment. The vacuum cooling temporary storage mechanism comprises a temporary storage bin, a sealing gate valve, a storage box, a vacuumizing assembly and a cooling module. The vacuumizing assembly is connected with the temporary storage bin, the storage box is arranged in the temporary storage bin, the temporary storage bin is provided with a conveying opening, the sealing gate valve is used for closing or opening the conveying opening, the cooling module is connected with the temporary storage bin, and the cooling module is used for cooling the temporary storage bin. Compared with the prior art, the vacuum cooling temporary storage mechanism provided by the utility model adopts the vacuumizing assembly connected with the temporary storage bin and the sealing gate valve mounted in the temporary storage bin, so that the cleanliness of the temporary storage bin can be ensured, the temporary storage bin is prevented from being influenced by the transmission bin, gas in the temporary storage bin can be directly pumped out, and the service life of the temporary storage bin is prolonged. And heat emitted by the wafer is rapidly taken away, and the cooling efficiency is high.

The invention discloses a two-piece type knife-shaped gate valve, relates to the technical field of knife-shaped gate valves, and aims to solve the problem that in the prior art, when a gate plate is attached to a sealing strip, impurities such as silt are retained between the gate plate and the sealing strip, and the sealing effect is affected. The two-piece type knife-shaped gate valve comprises a left valve body and a right valve body fixedly connected with the left valve body through a bolt; a sealing cavity is formed between the right valve body and the left valve body, rectangular medium channels which penetrate through the left valve body and the right valve body and are communicated with the sealing cavity are formed in the outer wall of the left valve body and the outer wall of the right valve body, a first sealing rubber strip is fixedly connected to the inner wall of the sealing cavity, and a rectangular gate plate is arranged in the sealing cavity; the two sides of the gate plate are attached to the inner walls of the two sides of the first sealing rubber strip respectively. The gate valve has the advantage that the probability that the sealing performance of the gate valve is affected due to impurities is reduced.

The invention relates to the technical field of gate valve equipment, and discloses a meter-front copper gate valve with a magnetic lockable structure, which comprises a valve body which is used as a basic component of the whole device and is used for assembling and bearing all mechanisms and subordinate lower structural parts; the valve basic mechanism is arranged on the valve body and used for being matched with other structural parts to execute basic operation treatment of the valve; and the locking protection mechanism is arranged at the upper part of the valve body. By adding and arranging an extreme protection mechanism, under the extreme working condition, a thermosensitive alloy sleeve of the mechanism expands in a high-temperature environment to push a locking pin rod to be inserted into a valve rod locking hole, a valve rod is mechanically locked, and fluid leakage caused by high-temperature damage of the valve under the extreme conditions such as a fire disaster is prevented; after the temperature is reduced, the pin rod is automatically reset, locking is relieved, follow-up normal operation is not affected, the valve body can be actively protected under the extreme working condition through the treatment mode, and the accident risk is prevented from being increased due to valve failure.

The invention relates to the technical field of intelligent gate valve control, in particular to an intelligent induction type automatic adjusting gate valve system.An analysis module of a calibration unit in the intelligent induction type automatic adjusting gate valve system recognizes signal distortion by comparing historical working condition databases, extracts the viscosity change trend and deduces the impurity accumulation rate; a dynamic compensation factor is generated by an offset calculation model subjected to multi-source transfer learning training, the signal amplitude and phase are corrected by a compensation module through dual-channel closed-loop correction, and compensation logic is optimized by combining distortion residual detection and model online incremental learning; a PID controller of the control unit adopts a parameter self-tuning strategy, dynamically adjusts parameters according to the viscosity acceleration, the impurity accumulation rate and the synchronous error, generates a gate valve opening instruction to drive an execution mechanism, counteracts signal distortion caused by viscosity change and impurity accumulation, improves the adjusting precision and guarantees stable and efficient fluid conveying.

The high-pressure gate valve comprises a gate valve body and a pressure release valve, the gate valve body comprises a first valve body and a first valve element, a first valve cavity, a first inflow channel and a first outflow channel are formed in the first valve body, the first inflow channel and the first outflow channel communicate with the first valve cavity, and the first valve element is movably arranged in the first valve cavity; the first valve element is connected with the first valve element so as to be switched between a first communication position and a first disconnection position, in the first communication position, the first inflow channel is communicated with the first outflow channel, and in the first disconnection position, the first valve element blocks the first inflow channel and / or the first outflow channel; the pressure release valve is fixed to the first valve body, and a flow inlet of the pressure release valve communicates with the first valve cavity. According to the high-pressure gate valve, through the pressure release valve communicated with the first valve cavity, when the pressure of fluid in the first valve cavity rises and the first valve element of the high-pressure gate valve is difficult to move, pressure in the first valve cavity can be reduced by controlling opening of the pressure release valve, and therefore the first valve element can move more easily.

The utility model discloses a gate valve with improved bidirectional sealing performance, which comprises a valve body, baffle rings are symmetrically arranged in the valve body, the outer side surfaces of the baffle rings are fixedly connected with the inner wall of the valve body, a gate plate is arranged on the inner sides of the baffle rings, an auxiliary pipeline is arranged above the gate plate, and the auxiliary pipeline is fixedly connected with the side surface of the valve body. Annular grooves are symmetrically formed in the surfaces of the two sides of the gate plate, sealing rings are fixedly connected to the surfaces of the inner sides of the annular grooves, a guide pipe is fixedly connected to the upper surface of the gate plate, the lower end of the guide pipe communicates with the annular grooves, the upper end of the guide pipe penetrates through the auxiliary pipeline to be connected with a hydraulic mechanism, and a driving mechanism is installed at the upper end of the auxiliary pipeline. The connecting flange is fixedly connected with the valve body. The problem that in the using process of a traditional gate valve, abrasion of a sealing ring on the gate plate sealing face is more and more serious is solved, the situation that the gate valve leaks due to the fact that the sealing performance of the gate plate is reduced after long-time use is avoided, the using sealing performance of the gate valve is improved, and the service life of the gate valve and the gate plate is prolonged.

The invention belongs to the technical field of gate valves, and particularly relates to a gate valve which comprises a main valve body, a main valve seat and a main valve core. The main valve cover is arranged on the main valve body, and a main valve rod is arranged in the main valve cover; the hand wheel is arranged at the top end of the main valve rod; the main gate plate is arranged in the main valve body and can be in sealing fit with the main valve seat; the two auxiliary valve covers are symmetrically arranged on the two sides of the main valve cover, and auxiliary valve rods are arranged in the auxiliary valve covers; the auxiliary valve seat is arranged in the main valve body; the auxiliary gate plate is arranged in the main valve body; the transmission gear set comprises a driving gear arranged in the main valve cover and a driven gear arranged in the auxiliary valve cover, the driving gear and the driven gear are in transmission connection through a first intermediate gear, and compared with the prior art, the working stability of the gate valve is improved, and the service life of the gate valve is prolonged.

The invention relates to the technical field of fault analysis. The gate valve fault quantitative simulation method comprises the steps that a fault degree threshold value is preset in a valve control system according to a fault simulation target; according to the fault simulation target, a fault piece matched with the gate valve is machined, and the fault piece is installed at the corresponding position of the gate valve; controlling the gate valve to simulate a fault working state through a valve control system, and collecting power data information corresponding to the gate valve; calculating an actual fault degree according to the collected power data information, fitting the actual fault degree with a preset fault degree threshold value to obtain a fault deviation, and displaying a fault simulation result on a human-computer interaction interface; and correcting the fault degree of the fault part according to the fault simulation result. The problem that a traditional fault simulation method is difficult to accurately reflect the actual working states of the gate valve under different fault degrees is solved.

The utility model discloses a stable and durable forged steel gate valve, and relates to the technical field of forged steel gate valves. The gate valve comprises a gate valve body and a cover plate, the cover plate is arranged on the gate valve body in a clamped mode, fixing assemblies which are symmetrically distributed are arranged on the cover plate, and a waste discharging assembly is arranged at the bottom of the gate valve body. A pressing plate rotates along a first rotating shaft, one end of the pressing plate drives a fixing rod to move in the direction away from a cover plate through a sliding groove, the fixing rod drives a disc to move, the disc drives an inserting rod to move in an inserting groove, and the cover plate is taken down from a gate valve body, so that the situation that bolts are inconvenient to disassemble can be avoided, and the purpose of quick disassembly is achieved. A double-end lead screw drives a moving block to move reversely, the moving block drives a top plate to move downwards through a supporting rod, meanwhile, a semicircular plate rotates downwards along a second rotating shaft through gravity, impurities accumulated at the bottom in the gate valve body are discharged from a waste discharging pipe, the impurities can be conveniently discharged, and therefore the purpose of conveniently discharging waste is achieved.

A gate valve includes a valve body having a through-bore and gate a cavity that are substantially perpendicular to each other; an upper bonnet coupled to the valve body; an operator housing coupled to the valve body; a gate slidably disposed within the gate cavity; a piston, at least partially disposed within an interior cavity of the operator housing; an operator coupled to a first end of the piston; an operating stem, at least partially disposed within the gate cavity, an upper bonnet interior cavity, and the operator housing interior cavity. The operating stem is coupled to the piston and to the gate. The operating stem is coupled to the piston with a free floating connection to provide lateral movement of the operating stem relative to the piston. A t-shaped adapter may be used to connect the operating stem to the piston in a free floating manner.

The invention is suitable for the technical field of flat gate valves, and particularly relates to a method for testing the sealing performance of a flat gate valve under a high-pressure-difference working condition. Wherein the pressure difference information comprises a plurality of pieces of opening difference information; obtaining analysis information based on the pressure difference information; wherein the analysis information comprises opening degree analysis information and service life prediction information; obtaining a test report based on the analysis information; wherein the test report reflects the sealing performance of the flat gate valve. According to the method for testing the sealing performance of the flat gate valve under the high-pressure-difference working condition, the situation that the contact pressure of the sealing surface is possibly smaller than the fluid pressure difference of the two sides of the gate plate in the high-pressure-difference working condition and in the environment where the flat gate valve needs to be frequently opened and closed, and consequently macroscopic leakage or microscopic leakage is caused can be improved; and high-speed jet flow generated when a medium passes through a sealing surface gap is easy to cause cavitation abrasion, so that the sealing performance of the gate valve is influenced.

The utility model belongs to the technical field of valves, and particularly relates to a gate valve which comprises a valve body, a valve cover is arranged on the top of the valve body, and a valve rod support is arranged on the valve cover. The valve seat is arranged in the valve body, and a first sealing piece is arranged on the valve seat; the valve rod is arranged on the valve body, the valve rod and the valve rod support in a penetrating mode, and a hand wheel is arranged at the top end of the valve rod; the flashboard is arranged in the valve body and matched with the valve seat, and the top end of the flashboard is connected with the bottom end of the valve rod; the supplementary sealing part comprises a second sealing piece arranged on the valve seat; the scale part is arranged in the valve rod bracket; wherein the second sealing piece can be matched with the gate plate to form a supplementary sealing surface when the gate plate is closed, the scale part can mark the moving stroke of the valve rod, and compared with the prior art, the use stability of the gate valve is improved.

The invention relates to the technical field of valve element grinding, and discloses a brake valve element grinding device and method.The brake valve element grinding device comprises a mounting bin, a distance adjusting mechanism is mounted in the mounting bin and comprises two transverse moving blocks with the mutual distance adjustable, and angle synchronous adjusting mechanisms are symmetrically mounted above the two transverse moving blocks. According to the gate valve element grinding device and method, two sets of angle synchronous adjusting mechanisms are arranged on the two sides of a valve element in a stacked mode, the inclination angle between the two sets of angle synchronous adjusting mechanisms is adjusted through a crank, and grinding can be conducted after angle plates are adjusted to be matched with the inclined faces of the two sides of the valve element; angles of the two groups of angle plates can be adjusted by shaking a crank during grinding, two groups of inclined surfaces are synchronously adjusted during grinding, the device is more convenient to use, grinding time is shortened by simultaneous grinding of two surfaces, and grinding efficiency is improved.

The anti-blocking gate valve comprises a valve body, a gate plate, sealing rings and a valve rod, a medium channel is formed in the valve body, the valve rod drives the gate plate to move in the direction intersecting with the flow direction of the medium channel, the sealing rings are arranged on the two sides of the gate plate and are coaxial with the valve body, and a flow guide mechanism is arranged at an inlet of the medium channel. The flow guide mechanism comprises a flow guide frame connected with the inner wall of the valve body and flow guide blades distributed in the circumferential direction of the flow guide frame, an anti-deposition part is arranged at the bottom of the medium channel, the low position of the anti-deposition part points to a slag discharging structure at the bottom of the valve body, and a filtering assembly is detachably connected and assembled to the slag discharging structure. According to the scheme, the flow guide mechanism is arranged at the front end of the medium channel, the conduction blades enable media in the internal flow channel to form rotational flow, the flow guide mechanism can guide the media to flow to reduce impact, impurities are not prone to deposition through the rotational flow, and the problem that the impurities in the medium pipeline are prone to being accumulated at the bottom of the valve body can be solved through the inclined design of the anti-deposition plate.

The invention relates to the field of valve body machining, in particular to grinding equipment for flat gate valve body machining, and solves the problems that most of existing equipment is single in grinding track, needs to manually smear grinding paste, cannot automatically control release of cooling liquid according to the grinding speed, and is high in cost and maintenance cost of some high-end equipment. The device comprises a shell and a grinding roller assembly, a rotating assembly is fixedly connected to the shell and used for driving the grinding roller assembly to rotate circumferentially, and a grinding disc assembly is fixedly connected to the grinding roller assembly. According to the grinding device, the grinding sleeve of the grinding roller assembly can rotate around the circumference and can rotate and do linear reciprocating motion at the same time, the grinding track of the device is enriched through cooperation of the grinding sleeve and the grinding disc, the grinding effect can be improved, and grinding paste and cooling liquid can be automatically conveyed to the grinding face by arranging the grinding paste conveying mechanism and the cooling liquid conveying mechanism.

The invention relates to the technical field of chip welding, and discloses a continuous vacuum welding device for an IGBT (Insulated Gate Bipolar Translator) chip, which comprises a working channel formed by connecting a plurality of working furnaces in series, vacuum gate valves used for sealing the space are installed at an inlet and an outlet of the working channel and the butt joint position of every two adjacent working furnaces, and the conveying mechanism is used for conveying product carriers, is installed in the working furnaces and comprises two conveying assemblies symmetrically distributed on the two sides of the axis of the working channel; the two ends of the product carrier are erected on the conveying parts of the two conveying assemblies correspondingly. The preheating furnace, the welding furnace and the cooling furnace are connected in series to form the working channel, and the vacuum gate valves are mounted at the inlets and the outlets of the cavities, so that the adjacent cavities are independently sealed, the oxygen content of each cavity is controlled in an extremely low range, the ceramic copper-clad plate is prevented from being oxidized, the welding void rate is reduced, and the interface bonding strength is improved.

The invention relates to the technical field of gate valve control systems, and discloses a pilot gate valve intelligent control system for a hydraulic valve, which comprises a valve body, and the valve body comprises a main valve clack, a hydraulic cavity, a pilot valve assembly, an intelligent control unit, a multi-source sensor, a human-computer interaction interface and a cloud server. According to the pilot gate valve intelligent control system for the hydraulic valve, a valve operation digital mirror image is built through the multi-source sensor set, the pressure sensor captures the pressure difference of a main valve, a reference is provided for water hammer suppression and the like, the electromagnetic flowmeter conducts non-contact measurement and adapts to multiple media, abrasion errors are avoided, and the magnetostriction displacement sensor monitors valve clack micro-motion; the vibration sensor carries out early warning on hidden dangers such as sealing abrasion through three-axis data, the temperature sensor corrects interference of fluid characteristics on control, the five sensors work cooperatively, all-directional monitoring of fluid parameters and mechanical states is achieved, data are accurately input for intelligent control, and efficient and stable operation of the valve is guaranteed.

The invention relates to magnetron sputtering coating production equipment for a substrate. The magnetron sputtering coating production equipment comprises a rack, a forevacuum unit, a transmission unit, a pretreatment unit and a magnetron sputtering process unit, the four units are integrally mounted on the rack; the forevacuum unit, the pretreatment unit and the magnetron sputtering process unit are arranged in three directions outside the transmission unit; the transmission unit is respectively connected with a substrate inlet and outlet of the forevacuum unit, a substrate inlet and outlet of the pretreatment unit and a substrate inlet and outlet of the magnetron sputtering process unit through three substrate inlets and outlets, and gate valves are respectively arranged at the joint of the transmission unit and the pretreatment unit and the joint of the transmission unit and the magnetron sputtering process unit; the forevacuum unit is used for multi-layer loading of substrates; the transmission unit is used for transmitting the substrate among the other three units; the pretreatment unit is used for removing moisture on the substrate and etching the surface of the substrate; and the magnetron sputtering process unit is used for realizing sputtering coating on the surface of the substrate. According to the invention, the utilization rate of the target material is improved, and the diversity of the process is realized.