2871results about "Preventing unauthorised/accidental actuation" patented technology

The present disclosure discloses a valve with dual ball valves, including two ball valves arranged side by side and clamped with each other, wherein each ball valve includes a valve body, a ball body, a valve rod and a handle, clamping structures are respectively and correspondingly arranged on one surfaces of the two valve bodies abutting against each other, and each ball valve further includes a limiting seat, a first anti-misoperation device and a second anti-misoperation device. The first anti-misoperation devices ensure that the handles can be rotated freely only when the two ball valves are in a clamped state. The second anti-misoperation devices ensure that the handles can only be rotated when external force is applied to the handles. Misoperation on the valve is prevented through triple protection.

The present technology relates to an automatically locking, releasable, safety knob assembly for a stove. The assembly includes a base with a locking notch. An adapter mates with the stove's valve stem and has a head, a tubular middle section, and an adapter base with a central aperture for receiving the valve stem. The knob includes a housing with a housing disk covering the base, an arm movement channel aligned with the locking notch in the locked configuration, and a central aperture for receiving the adapter head. The assembly further includes a sub-assembly with a slidable button allowing free rotation of the knob in the unlocked configuration, an automatic locking arm biased with the slidable button, and engagement of the button causing the arm to disengage from the locking notch and move in the arm movement channel, enabling the knob to freely rotate and rotate the valve stem.

The three-piece type high-pressure ball valve structure with the lock comprises a valve body and connectors symmetrically arranged on the left side and the right side of the valve body, a ball core is arranged in the valve body, a valve rod is connected to the top of the ball core in an inserted mode, and valve seats matched with the ball core are arranged on the left side and the right side of the valve body respectively. The left side and the right side of the valve body are each provided with a sealing ring, and the sealing rings and the valve seats are coaxially arranged. Through the arrangement of the annular cavity, the first elastic piece, the first flow channels, a piston column, a movable plate and the like, when the valve is in a closed state, the pressure of the liquid inlet end is increased, a belleville spring gets close to a ball core, the first elastic piece deforms, and hydraulic oil in an extrusion cavity and the annular cavity enters the multiple first flow channels; the multiple piston columns move towards the outer side and extrude the sealing ring, the sealing effect on the two sides of the sealing ring can be enhanced at the same time after the sealing ring is deformed, and the higher the pressure in the valve is, the better the sealing performance of the valve body and the connector is.

The invention relates to a pneumatic corrugated pipe stop valve, and relates to the technical field of stop valves, the pneumatic corrugated pipe stop valve comprises a valve body, a valve cover installed on the valve body, a valve clack located in the valve body and a valve rod driving the valve clack to slide, an air cylinder is fixedly arranged above the valve cover, and a piston is arranged in the air cylinder in a sliding mode; the side face, away from the valve deck, of the air cylinder is provided with an installation opening allowing the piston to be placed in, and a cover plate for blocking the installation opening is fixedly arranged outside the air cylinder. An upper air inlet and a lower air inlet for a compressed air pipeline to be connected in are formed in the periphery of the air cylinder, a push rod is fixedly arranged on the side face, facing the valve cover, of the piston, a mounting hole for the push rod to penetrate through is formed in the air cylinder, and the outer end of the push rod is coaxially and fixedly connected with the outer end of the valve rod; a first sealing ring is embedded in the inner wall of the mounting hole, a second sealing ring is embedded in the periphery of the piston, and a third sealing ring is embedded in the side face, facing the cover plate, of the air cylinder. The sealing performance and the stability of the pneumatic corrugated pipe stop valve are remarkably improved.

The invention relates to the technical field of valves, and discloses an ultralow-temperature LNG top-mounted hard sealing floating ball valve which comprises a valve body, a valve rod and a valve ball arranged in the valve body, a mounting seat is arranged at the top of the valve body, the valve rod penetrates through the mounting seat, an adjusting seat is fixedly mounted at the bottom end of the valve rod, a mounting cavity is formed in the inner side of the valve body, and the valve ball is arranged in the mounting cavity. The valve ball is movably arranged in the mounting cavity, a sliding groove is formed in the top end of the valve ball, and the adjusting seat is slidably arranged in the sliding groove; through the arrangement of the adjusting assembly, when the valve is opened, the adjusting assembly can drive the adjusting block to move, so that the adjusting block pushes the valve ball to move in the direction away from the valve seat, the valve ball is separated from the valve seat, the valve ball does not make contact with the valve seat when starting to rotate, and the friction force generated when the valve ball rotates is reduced; and relative friction between the valve ball and the valve seat is avoided, so that abrasion between the valve seat and the valve ball is reduced, and the service life of the valve ball and the service life of the valve seat are remarkably prolonged.

The invention provides a fluid coupler. The fluid coupler comprises a body, a supporting part, a valve assembly, a switch piece and an interlocking mechanism. The body is provided with a butt joint platform. The supporting part is annularly arranged at the first end of the body, is adjacent to one side, back to the butt joint surface, of the butt joint platform, is provided with a first mounting surface and a second mounting surface, and is internally provided with a limiting cavity and a clamping bolt hole; and the limiting cavity axially penetrates through the second mounting surface and the butt joint surface and is communicated with the safety bolt hole. The clamping bolt hole is opened in the first mounting surface and is communicated with the limiting cavity; the valve assembly comprises a ball core which is provided with a channel and is pivoted in the body. The switch piece is arranged on the first installation face and comprises a handle and a spring bolt, the handle is provided with a pivot joint part and a limiting groove, and the ball core is driven to rotate through the upper valve body. The interlocking mechanism comprises a safety bolt, a spring and a clamping bolt. The safety plug is arranged in the limiting cavity, and the spring provides elastic force so that the safety plug can be maintained at the preset position. The clamping bolt is arranged in the clamping bolt hole and provided with a limiting part and a locking part which are matched with the limiting groove and the safety bolt ring groove respectively so as to control locking and unlocking of the handle.

The invention provides a water outlet control method and device, a mineralization faucet and a storage medium, and the method comprises the steps: carrying out the human body recognition of a target object in a current space, and obtaining a target recognition result; when determining that the target object is a non-human animal object based on the target identification result, determining that the water outlet control strategy is a water outlet prohibition strategy; when it is determined that the target object is the human body object of the preset age group based on the target recognition result, the water outlet control strategies are determined as a low-temperature secondary unlocking water outlet strategy and a high-temperature multi-time unlocking water outlet strategy; and when it is determined that the target object is a human body object of a non-preset age group based on the target recognition result, determining that the water outlet control strategies are a low-temperature direct water outlet strategy and a high-temperature secondary unlocking water outlet strategy. Through accurate human body recognition and water outlet control strategies, small animals are effectively prevented from mistakenly triggering water outlet, different water outlet control modes are provided for users of different age groups, and the water outlet safety is improved; through real-time monitoring and visual display of water quality information, a user can obtain instant water quality feedback, the convenience and accuracy of drinking water quality monitoring are improved, and thus the user experience is improved.

The utility model provides a quick-connection ball valve which comprises two ball valves, the two ball valves are in linear clamping connection, each ball valve is provided with a through hole for fluid to pass through, each ball valve comprises a valve body, a valve element is arranged in each valve body, each valve element is connected with a valve rod, the end, away from the corresponding valve element, of each valve rod extends out of the corresponding valve body, and the end, extending out of the corresponding valve body, of each valve rod is connected with a handle. The handle drives the valve element to rotate through the valve rod. And the valve body is provided with a locking device. The locking device comprises a locking groove and a locking column; the handle is in driving connection with the locking column. When the handle is closed, the locking column is arranged in the valve body; when the two ball valves are in butt joint and the handle is opened, the handle drives the locking column to stretch into the locking groove of the other ball valve, the locking device locks the two ball valves, the two ball valves are prevented from rotating and disengaging, fluid leakage caused by looseness is avoided, and the safety of valve body connection is improved.

The utility model discloses an anti-loosening sealing diaphragm valve which comprises a valve body, a valve cover, an actuator, a valve cavity, a valve rod, a flow channel, a valve clack and a diaphragm. An inner shell is arranged in the valve cavity, an inner sliding block which is limited in the inner shell and slides in the horizontal direction is arranged in the inner shell, an embedded block is fixedly arranged at the left end of the inner sliding block, an embedded groove is formed in the right end of the valve rod, and when the flow channel is cut off by the valve clack, the embedded groove is just located on the left side of the embedded block. A driving spring for providing driving force for the embedded block to be embedded into the embedded groove is arranged in the inner shell; and an inclined guide contact surface is arranged on the embedded block. The utility model has the following advantages and effects: the inner sliding block can keep moving leftwards under the driving force of the driving spring, and then can push the embedded block to be embedded into the embedded groove of the valve rod, so as to lock the valve rod; longitudinal reciprocating offset of the valve rod is avoided, and the sealing performance of the valve clack is improved.

Valve control device (100) for a coolant circuit of a motor vehicle, said valve control device (100) comprising a first valve (120) having an assigned first functional element (125) comprising a first engagement unit (122), a second valve (150) having an assigned second functional element (155) comprising a second engagement unit (152), wherein the first valve (120) and the second valve (150) in terms of the switch position thereof are configured so as to be variable by rotating the respective assigned functional element (125, 155), a locking mechanism (200) comprising an entrainment installation ( ), wherein the locking mechanism (200) is configured so as to be able to be driven by means of a drive (300), wherein the locking mechanism (200) in a rotating movement, by means of the entrainment installation (210) engaging in the first engagement unit (122), is configured for transferring the first functional element (125) from a first switch position to a second switch position, and / or, by means of the entrainment installation (210) engaging in the second engagement unit (152), is configured for transferring the second functional element (155) from a first switch position to a second switch position, and wherein the engagement unit (122) of the first functional element (125) comprises a first number of engagement contours (123), and the engagement unit (152) of the second functional element (125) comprises a second number of engagement contours (153), wherein the first number differs from the second number.

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.

A lockable valve-actuated suction apparatus includes a resilient anchor member having an inner side arranged to seal against a reference surface, and an outer side. The anchor member includes a vent port extending between its inner and outer sides. A movable member is slidably movable between a sealing position wherein the vent port is blocked and a venting position wherein the vent port is unblocked. A twist-to-lock coupling connection is provided between the movable member and the anchor member. The twist-to-lock coupling connection is operable by rotating the movable member between a locking state and an unlocking state. The locking state of the twist-to-lock coupling connection is characterized by the movable member being locked against the slidable movement relative to the anchor member. The unlocking state of the twist-to-lock coupling connection is characterized by the movable member being unlocked against the slidable movement relative to the anchor member.

The utility model discloses a two-way rotary sealing butterfly valve, which belongs to the technical field of butterfly valves and comprises a butterfly valve body, wherein a mounting block is connected to the top of the butterfly valve body; the utility model is provided with a protection component, wherein a pull rod is moved to drive a plug-in rod to move upward, the plug-in rod moves upward to squeeze a first spring, and then the protection cover is moved toward the end plate direction, and a connecting column is plugged into the inside of a plug-in cavity, and then the pull rod is released, the first spring is restored to its original appearance and drives the plug-in rod to be plugged into the inside of the connecting column, and under the action of the end plate and the protection cover, the components of a cleaning and de-cluttering mechanism can be protected, and dust and other impurities in the external environment are prevented from adhering to the components of the cleaning and de-cluttering mechanism, causing the components of the cleaning and de-cluttering mechanism to be blocked, thereby ensuring the normal service life of the components of the cleaning and de-cluttering mechanism, and at the same time, during the operation of the cleaning and de-cluttering mechanism, air circulation inside the protection cover can be ensured under the action of the vent.

The present disclosure discloses a valve with dual ball valves, including two ball valves arranged side by side and clamped with each other, wherein each ball valve includes a valve body, a valve rod and a handle, the valve bodies include abutting surfaces provided with clamping structures, and the valve rods make the ball valves switch between a through-flow state and a closed state in a process of rotating along its own axes. The ball valves further include first anti-misoperation devices and second anti-misoperation devices. The two anti-misoperation devices provide multiple protections for the ball valves to avoid misoperation on the valve.

The utility model belongs to the field of ball valves, and particularly discloses an anti-violent-damage ball valve with a lock, the anti-violent-damage ball valve comprises a ball valve main body, a valve rod, a limiting ring, a rotating cover, a magnetic sliding block and a compression spring, the fixed end of the valve rod extends into the ball valve main body and is connected with a sealing ball in the ball valve main body, and the free end of the valve rod is arranged outside the ball valve main body; the limiting ring sleeves the outer side of the free end of the valve rod and is fixedly connected with the ball valve main body; two limiting tables are symmetrically arranged on the inner wall of the limiting ring by taking the circle center as an original point; the rotary cover sleeves the outer side of the free end of the valve rod and is rotationally connected with the ball valve main body; a containing groove is formed in the lower end of the magnetic sliding block, and the magnetic sliding block is arranged in the rotary cover and can move up and down in the rotary cover; the compression spring is arranged between the magnetic sliding block and the ball valve body. The ball valve limiting switch with the lock can be achieved, meanwhile, the situation that the ball valve body is damaged and fails due to brute force in the locking state can be prevented, and therefore the violent damage prevention effect is achieved.

The present invention provides a high-pressure solenoid valve with signal feedback and a manual-automatic self-locking device, comprising a valve body, a valve core assembly, an electromagnet and a manual switch, wherein a valve cavity is formed in the valve body, an intermediate flow channel is provided in the valve cavity, and a liquid inlet and a liquid outlet are connected through the intermediate flow channel; the valve core assembly is slidably fitted in the valve core cavity, and an elastic assembly is provided in the valve core cavity to make the valve core assembly have a downward movement tendency and block the outlet end of the intermediate flow channel; the electromagnet is installed at the upper end of the valve body, and is used to drive the valve core assembly to move upward; the manual switch is installed on the side wall of the valve body, and is used to manually move the valve core assembly upward and realize manual opening. The high-pressure solenoid valve with signal feedback and a manual-automatic self-locking device of the present invention has a compact structure, a small size, is safe and reliable, and has a good use effect.

The invention relates to the technical field of double-ball valves, and discloses a double-ball valve with a self-locking protection function, which comprises a ball valve shell, a mounting space is arranged in the ball valve shell, a fluid channel is arranged at the center axis of the ball valve shell, and a plurality of valve balls are arranged in the mounting space of the ball valve shell. The inner side of the sealing cover is arranged to be in the shape of the semicircular groove matched with the valve ball, so that the valve ball can stably rotate in the sealing cover; when the contact ring in the sealing cover extrudes the valve ball, the sealing cover drives the sliding ring to slide along the interior of the sealing cylinder and extrudes the multiple extrusion springs, and the extrusion effect of the contact ring on the sealing cover on the valve ball is enhanced through the counter-acting force of the extrusion springs. And a gap is prevented from being generated when the valve ball and the inner wall of the ball valve shell rotate, so that the flow of the double-ball valve can be more accurately controlled.

The invention discloses an ultralow-temperature forged steel stop valve which comprises a stop valve body, a valve rod shell, a valve rod, an expansion mechanism, a limiting mechanism, a water conveying mechanism, a frame, a reciprocating lead screw, a moving block, an L-shaped supporting rod, an arc-shaped limiting plate and a rotating head. The top of the valve rod is connected with an expansion mechanism, the bottom of the valve rod is connected with a valve clack, the valve clack is in sealed contact connection with a channel in the stop valve body, a limiting mechanism is arranged outside a valve rod shell, and a water conveying mechanism is arranged on the side wall of the stop valve body. And the limiting mechanism comprises a frame, a reciprocating lead screw, a moving block, an L-shaped supporting rod, an arc-shaped limiting plate and a rotating head, a valve rod can be limited and fixed, the situation that the valve rod rotates due to accidental touch of an operator is avoided, meanwhile, the interior of a valve can be quickly unfrozen, and then the machining efficiency is improved.

A control valve capable of accurately and easily adjusting a degree of a communication opening or a volume of a flow channel with a simple configuration is provided. A control valve (flow-rate regulator valve 16) includes: a valve housing 20 including a flow channel block 21 with a flow channel in which a fluid flows; a valve assembly 50 mounted on the valve housing 20 to be movable in a first direction and provided with a valve body 31 configured to change the degree of the communication opening of the flow channel; and an operation shaft 51a including a shaft section 53 inserted into an insertion hole 52 formed in the valve housing 20 and a tapered shaft section 54 being in contact with the valve assembly, and a position of the valve body through the tapered shaft section is adjusted by motion of the operation shaft in a second direction.

The invention provides a double-control mixing faucet valve element and a faucet, the double-control mixing faucet valve element comprises the following structures: a fixing assembly, the fixing assembly is provided with a water supply channel and a water outlet channel, the double-control mixing faucet valve element further comprises an adjusting assembly, a mounting cavity is formed in the fixing assembly, and the adjusting assembly is provided with a manual control water mixing cavity, an electric control water mixing cavity and a plugging part; the adjusting assembly moves in the mounting cavity, one of the manual control water mixing cavity, the electric control water mixing cavity or the plugging part is selected to be in butt joint with the water supply channel, and the double-control mixing faucet valve element is switched among a manual control mode, an electric control mode and a closing mode. The manual control mode and the electric control mode cannot control water outlet, and the situation that in the prior art, when an electromagnetic valve is damaged, a faucet leaks water is avoided. A plurality of pipe fittings are not needed for connection, the hidden danger of water leakage caused by untight connection of the pipe fittings is avoided, the overall structure is more compact, and meanwhile the complexity of later maintenance is reduced.

The invention relates to a delay faucet control method and system, an intelligent terminal and a storage medium, and relates to the field of faucet technology.The delay faucet control method comprises the steps that starting trigger information of a delay faucet is obtained; controlling a preset water outlet device to obtain starting stress parameter information according to the starting trigger information; determining water outlet parameter information of the delay faucet according to the starting stress parameter information and preset stress water outlet relation information; and controlling the delayed faucet to discharge water according to the water discharge parameter information. The time-delay faucet has the effect that the use convenience of the time-delay faucet is improved.

The utility model discloses a five-eccentric high-temperature hard sealing butterfly valve which comprises a valve body and a butterfly plate, a valve seat is arranged on the valve body, a sealing ring corresponding to the valve seat is arranged on the butterfly plate, a spherical cambered surface structure is arranged on an outer ring of the sealing ring, a valve shaft is further arranged in the valve body and penetrates through the valve body to be fixed with the butterfly plate, and a bottom cover is further arranged on the valve body. One end of the valve shaft penetrates through the valve body and abuts against the bottom cover. Compared with the prior art, the five-eccentric high-temperature hard sealing butterfly valve has the advantages that the spherical cambered surface structure and the perfect circular sealing surface of the valve seat form a linear sealing pair, forced linear sealing is formed based on medium pressure and torque applied by the valve shaft, the contact area of the linear sealing pair is small, the sealing effect is larger under the same torque force and pressure, and the sealing effect is better. And the perfect circular sealing specific pressure is uniform, the sealing zero-leakage performance is improved, the sealing device is particularly suitable for the working conditions of high temperature, ultralow temperature and temperature cross change, deformation generated by a sealing pair under the height difference is uniform, and the stability of the sealing performance can be guaranteed.

A fluid connector includes a shell having a fluid channel, a ball valve accommodated in the shell and having a through hole, a control element arranged outside the shell for controlling the ball valve to rotate, and a pin member. A front end of the shell for engaging a matching connector has an engagement hole. The control element controls the ball valve between a closed position and an open position. The through hole is in fluid communication with the fluid channel when the ball valve is at the open position. A front face of the shell has an accommodating hole for accommodating the pin member. A resilient member is arranged in the accommodating hole for supporting the pin member. The pin member obstructs the rotation of the control element unless it is in a set position.

The double-ball-valve valve comprises two ball valves which are arranged side by side and connected in a clamped mode, each ball valve comprises a valve body, a valve rod and a handle, each valve body comprises an abutting face provided with a clamping structure, and the valve rods enable the ball valves to be switched between a through-flow state and a closed state in the rotating process of the valve rods along the axes of the valve rods. The ball valve further comprises a first mistaken touch preventing device and a second mistaken touch preventing device, the first mistaken touch preventing device comprises a rotating piece and a sliding piece, the rotating piece and the valve rod are fixed, a clamping groove is formed in the rotating piece, and in the rotating process of the rotating piece, the clamping groove can be connected with the sliding piece in a clamped mode and push the sliding piece to reciprocate in the first direction. The sliding piece extends out of the abutting face and is inserted into the other ball valve when the ball valve is in the through-flow state. And the second mistaken touch prevention device is used for locking the handle in a closed state when the two ball valves are separated. The two mistaken touch prevention devices carry out multiple protection on the ball valve, and misoperation on the valve is avoided.

The utility model discloses a high wear-resistant wafer type worm gear butterfly valve, which relates to the technical field of wafer type worm gear butterfly valves, and comprises a valve body, a driving box is fixedly mounted on the valve body, a driving component is mounted on the valve body, the driving component comprises a driving shaft, a valve core is rotatably mounted in the valve body, and the driving shaft is fixedly inserted in the valve core. A worm wheel body is fixedly installed on the driving shaft, a worm is rotatably installed in the driving box and meshed with the worm wheel body, a rotating disc is fixedly installed at one end of the worm, a lubricating assembly is installed at the top end of the driving box, and a limiting assembly is installed on the valve body. The driving assembly is used for driving the lubricating assembly to lubricate the connecting position of the worm gear body and the worm, abrasion of the worm gear body and the worm can be reduced, the abrasion resistance of the worm gear body and the worm can be improved, and the service life of the worm gear body and the worm can be prolonged; the rotating angle of the turntable and the opening and closing of the valve core are convenient to observe.

The high-sealing-performance ball valve comprises a ball valve shell and a spherical valve body, the ball valve shell comprises a mounting ball shell and a connecting pipe coaxially communicating with the two opposite sides of the mounting ball shell, the spherical valve body is rotationally arranged in the mounting ball shell with the same ball center, a valve hole is formed in the spherical valve body, and the inner diameter shape of the valve hole corresponds to the shape of the connecting pipe; a rotating inner rod is rotationally arranged in the mounting spherical shell in the radius direction, one end of the rotating inner rod is connected with the spherical valve body, a sealing assembly is arranged in the ball valve shell and comprises a mounting sealing ring and a first sealing air bag ring, and the mounting sealing ring is arranged on the inner ring wall of the connecting position of the connecting pipe and the mounting spherical shell; the first sealing air bag ring is arranged on the side wall, close to the spherical valve body, of the installation sealing ring, and the first sealing air bag ring is attached to the surface of the spherical valve body. The sealing structure has the effects of improving the sealing performance of the ball valve and prolonging the service life of the ball valve.

The utility model discloses a double-interlocking quick connector, which belongs to the technical field of pipeline connecting tools, and aims to solve the problem that the existing male and female connectors are poor in interchangeability and generality, the double-interlocking quick connector comprises a first half connector (37) and a second half connector (38), the structures of the first half connector (37) and the second half connector (38) are the same, the first half connector (37) comprises a connector main body (1), and the connector main body (1) is provided with an opening. A buckle (2), an inserting opening (20) and a clamping groove (21) are arranged at the front end of the connector body (1), the buckle (2) of the first half connector (37) can be connected with the clamping groove (21) of the second half connector (38) in a clamped mode, and the buckle (2) of the second half connector (38) can also be connected with the clamping groove (21) of the first half connector (37) in a clamped mode. The first half joint and the second half joint are not divided into male and female parts, and the double-interlocking quick joint has ultrahigh interchangeability and high universality, and is also very convenient to replace.

The present invention discloses a concentrated water regulating valve, comprising: a valve body, which has a water inlet, a water outlet and a discharge port, and a valve cavity is formed inside the valve body; a partition component, which is arranged in the valve body and divides the valve cavity into a first cavity and a second cavity, and a hole system penetrating the first cavity and the second cavity is opened on the partition component, the water inlet and the water outlet are connected to the first cavity, and the discharge port is connected to the second cavity; a valve core, which is arranged in the second cavity to change the flow cross section of the hole system; wherein: the first cavity is arranged as a columnar cavity; at least the water inlet is extended to the first cavity along the tangential direction so that the concentrated water enters the first cavity through the water inlet and then flows in a rotation. By extending the water inlet to the first cavity along the tangential direction, the hole system is continuously flushed to a large extent, and thus the hole system can be effectively prevented from being blocked due to crystallization, especially the end of the hole system where the hole opening is smaller can be effectively prevented from being blocked.

The high-end electronic-grade silicon-based granular material conveying valve comprises a valve body, a valve cover, a valve rod, a flashboard assembly, a baffle assembly and a pneumatic actuator, the flashboard assembly comprises a flashboard outer ring and a flashboard inner ring installed in the flashboard outer ring, a flow channel opening is formed in the upper portion of the flashboard inner ring, and the flashboard outer ring is in linkage connection with the lower end of the valve rod; the number of the baffle assemblies is two, each baffle assembly comprises a baffle outer ring and a baffle inner ring arranged in the baffle outer ring, the baffle inner rings are tightly attached to the flashboard inner ring, valve seats are arranged in the flow channels on the two sides of the valve body, installation holes are formed in the baffle assemblies, and the inner ends of the valve seats are tightly attached to the side portion of the flashboard inner ring. The outer circular surface of the valve seat is tightly attached to the inner circular surface of the mounting hole; the valve seat, the baffle inner ring and the flashboard inner ring are all made of non-metal wear-resistant materials. The valve has high-end electronic-grade purity, the integrity of particle materials is protected, and it can be ensured that the valve stably runs without jamming and blockage.