11314 results about "Ball valve" patented technology

The invention belongs to the technical field of automatic assembly, and discloses an automatic assembly system and method for a large nut of a water turbine ball valve, and the system comprises a mechanical arm, an end effector and an intelligent nut tightening control system. The end effector integrates an electromagnet adsorption mechanism, a servo drive rotating mechanism, a floating compensation mechanism and a visual recognition mechanism, nuts of different specifications are grabbed in a self-adaptive mode through an electromagnet, submillimeter-level accurate positioning is achieved through a laser galvanometer stereo camera, and the assembling posture is automatically adjusted in combination with the floating compensation mechanism. The intelligent control system adopts a staged tightening strategy, performs real-time monitoring through a torque sensor, and has a dual protection mechanism. The hydraulic turbine ball valve large nut assembling machine achieves full-automatic assembling of hydraulic turbine ball valve large nuts, has the advantages of being high in assembling efficiency, high in positioning precision, high in adaptability, reliable in quality and the like, solves the problems that manual assembling is large in labor intensity, many in potential safety hazards, poor in quality consistency and the like, and remarkably improves the assembling quality and efficiency of key parts of a hydropower station.

The invention discloses a self-powered intelligent network connection ball valve for adjusting fluid. The self-powered intelligent network connection ball valve comprises a ball valve body and an intelligent network connection control module arranged on the ball valve body. The ball valve body comprises a ball body, a rotating wheel arranged on the ball body, a transmission shaft connected with the rotating wheel and a generator connected with the transmission shaft. The generator is used for supplying power to the intelligent network connection control module; the intelligent network connection control module comprises a controller; the controller is used for adjusting the valve opening degree of the ball valve body. The pressure and the flow of the valve outlet can be more accurately controlled, and electric power can be provided for the intelligent network connection ball valve.

The invention relates to the technical field of ball valves, and discloses a corrosion-resistant anti-scouring ball valve which comprises a valve body, an anti-scouring mechanism is arranged on the left side in the valve body, and a flowing mechanism is arranged at the top of the valve body. According to the corrosion-resistant and anti-scouring ball valve, through the arranged anti-scouring mechanism, under the elastic potential energy of a spring, impact force of water flow can be effectively buffered, so that damage to the interior of the valve body caused by excessive impact force of the water flow can be avoided, the anti-scouring effect is achieved, the service life of the ball valve is prolonged, and the service life of the ball valve is prolonged. The inner wall of the valve body is coated with epoxy paint, the purpose of corrosion resistance can be achieved, and through the arranged flowing mechanism, when the ball rotates to enable an inlet and an outlet of a pipeline to be spherical surfaces, the ball valve is in a closed state, and fluid is cut off; and when the ball channel is aligned with the inner diameter of the pipeline, the ball valve is in an open state, the fluid circulates, and the operation is convenient and fast.

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 invention relates to the technical field of electroplating wastewater treatment, in particular to electroplating wastewater treatment equipment based on multistage filtration. The invention provides electroplating wastewater treatment equipment based on multi-stage filtration, which can quickly and effectively separate and discharge wastewater and precipitates. Electroplating wastewater treatment equipment based on multi-stage filtration comprises a support, a connecting pipe, a spherical valve and the like, the connecting pipe is connected to the upper portion of the support, and the spherical valve is rotationally arranged on the upper portion of the connecting pipe. A servo motor is started, a rotating bin is rotated through a first gear assembly, electroplating wastewater enters a lifting bin to be discharged through a filtering bin under the centrifugal effect, sediment is intercepted in the filtering bin, then an air cylinder is started, the lifting bin is pushed to move upwards, the rotating bin is rotated, and the sediment is discharged into a sediment collecting pool; the effect of quickly and effectively separating and discharging the wastewater and the precipitate is achieved.

The invention relates to the technical field of ball valve design and simulation, in particular to a three-dimensional simulation design method and system for a ball valve. The method comprises the following steps: performing reference geometric construction based on a ball valve design specification, and performing geometric parameterization to obtain an initial geometric configuration; importing the initial geometric configuration into a finite element analysis platform, and endowing material attributes to obtain a finite element mesh model; performing ball valve working stress analysis on the finite element mesh model to obtain a stress-strain field; performing model fluid domain grid division according to the initial geometric configuration and the stress-strain field to obtain a fluid domain grid; valve opening change setting is conducted on the fluid domain grids, and a CFD calculation model is obtained; internal flow field transient simulation of the ball valve under different opening degrees is conducted on the CFD calculation model, and fluid dynamic parameters are obtained. The dynamic characteristics of the valve under the complex working conditions are accurately captured, and the working performance of the valve under different working conditions is improved.

A fluid exchanger may exchange a fluid (e.g., coolant) in a reservoir (e.g., vehicle radiator) by removing or withdrawing a first fluid (e.g., old, spent, used, etc.) and by introducing a second fluid (e.g., new, clean, etc.). In some examples, the exchanger includes a valve construction that permits easy and safe transitioning from a first mode in which the fluid in the vehicle is run in a loop (e.g., after a cleaner is introduced) to a second mode in which the fluid is exchanged. In some examples, the exchanger includes a restrictor that stops fluid from flowing when the pressure fails to satisfy a threshold (e.g., where the pressure is below a threshold). In some examples, the exchanger includes a safety valve (e.g., ball valve) in the bottom of the new fluid tank, such that when the tank is empty, the valve will close and reduce the likelihood of unintentionally pushing air into the system (e.g., emptying the reservoir).

A valve sealing structure and a ball valve. The valve sealing structure is applied and connected to a communicating position of an inner cavity (11) of a valve body (1) and a channel (21) of a valve cover (2), and comprises a C-shaped ball body (3) and a PTFE sealing ring (41), the C-shaped ball body (3) is rotatably connected in the inner cavity (11) of the valve body (1), and a first metal sealing ring (31) is arranged on the outer surface of the C-shaped ball body (3); the PTFE sealing ring (41) is mounted at a liquid outlet of the inner cavity (11) of the valve body (1), and the PTFE sealing ring (41) and the liquid outlet of the inner cavity (11) are concentrically arranged; a second metal sealing ring (42) is concentrically arranged on the end surface of the PTFE sealing ring (41) facing away from the C-shaped ball body (3) in the axial direction; an elastic pressing component is provided on the end surface of the second metal sealing ring (42) facing away from the PTFE sealing ring (41), and the elastic pressing component is used for applying to the second metal sealing ring (42) a pre-tightening force in the axial direction toward the PTFE sealing ring (41); and when the C-shaped ball body (3) is in a closed state, the first metal sealing ring (31) and the PTFE sealing ring (41) are concentrically arranged. The valve sealing structure can ensure that reliable sealing performance is always kept at different operating temperatures.

The invention discloses a temperature control ball valve self-adaptive to temperature difference change, and relates to the technical field of valves, the temperature control ball valve comprises a valve seat, a buckling valve piece, a collaboration piece and a valve rod; the valve seat is fixedly connected with the buckling valve piece through a bolt, the valve seat and the buckling valve piece are buckled to form a circulation pipeline, the cooperation piece is arranged above the buckling valve piece, and the valve rod is vertically arranged in the valve seat and the buckling valve piece; by means of the design of the deformability detection assembly, safe and stable operation of the system can be guaranteed for the valve body with the valve rod deformability detection function, faults can be early warned in advance, the deformation condition of the valve rod can be monitored in real time, early warning can be given out in time when tiny deformation of the valve rod begins, and the safety of the valve rod is guaranteed. Workers can take measures in advance, and the serious problems that the ball valve cannot be normally opened and closed and fluid leaks due to further aggravation of deformation of the valve rod are solved, so that safe and stable operation of a whole pipeline system is guaranteed.

In a segmented ball valve for low noise and anti-cavitation applications, a replaceable cartridge is fixed inside and retained by stem and end post. The segment has a machined cylindrical bore with a slide-fit noise cartridge, enabling field replaceability with minor effort & without need of welding or fasteners. The replaceable cartridge also enables use of a fully cylindrical cartridge with greater pressure reduction stages compared to welded-on noise plates on the segment. The segment has a flattened front face resulting in lower Fd enabled by dual flow path in lower openings values thereby attaining higher noise attenuation where the cartridge is not required. The curved plates of the low noise and anti-cavitation cartridge enable: expanding flow resulting in non-impinging jet streams thereby achieving higher noise attenuation in one direction; and converging flow in the opposite direction resulting in reduction of flow energy, and the potential for cavitation for liquids.

The invention relates to the field of hydroelectric generation automation control, discloses an intelligent flow-pressure double closed-loop control method and system for a water inlet ball valve of a water turbine, and aims to solve the technical problems that flow stability and pressure fluctuation suppression are difficult to consider, dynamic response is delayed and working condition adaptability is poor in existing single-loop control. The method comprises the steps that inlet pressure and flow data are collected in real time through a pressure sensor and an ultrasonic flowmeter, a cascade structure of outer ring flow control and inner ring pressure control is constructed in combination with working condition parameters such as the rotating speed of a unit and the opening degree of a guide vane, and a working condition self-adaptive weight distribution module is introduced to dynamically adjust the double-ring gain coefficient; meanwhile, a feed-forward compensation mechanism and an optimal efficiency curve database are fused, and dynamic matching of set values and advanced response of load instructions are achieved. The system comprises a data acquisition unit, a double-closed-loop control unit, a weight distribution unit, an electro-hydraulic servo execution mechanism and a safety interlocking module, and supports microsecond-level gain updating and high-precision valve position control. According to the technical scheme, the adjusting precision and the response speed of the water turbine under the complex working condition are remarkably improved, the actual measurement efficiency is improved by 2.5%-4.8%, the adjusting time is shortened to be within 3 seconds, the positioning precision reaches + / -0.5 degree, and safe and stable operation of the system is guaranteed.

A ball valve according to an exemplary embodiment of the present invention may comprise: an actuator; a housing having an interior space and a plurality of through-holes exposing the interior space, the through-holes including an inlet hole through while a refrigerant flows in, an outlet hole through which the refrigerant flows out, and a connection hole which is connected to the actuator; a ball having a flow path through which the refrigerant flows in connection with the inlet hole and the outlet hole, and being rotated by a rotary shaft of the actuator in the interior space; a sheet having a flow hole, through which the refrigerant passes in communication with the outlet hole, and arranged to be in contact with the ball between the housing and the ball so as to support the ball; and a sealing member placed between the seat and the housing.

The invention relates to the technical field of ball valves, provides an intelligent sensing modular ball valve and a control method, and designs a valve body module and a control module. The valve body module is integrated with a multi-mode sensor, comprises a spirally-distributed acoustic sensor array, a physical quantity sensor group and a valve element state detection sensor, and monitors fluid acoustic characteristics, pressure, temperature, flow, liquid level and valve element displacement and torque in real time. The control module analyzes sensor data through a data fusion algorithm, and early identification of cavitation faults and detection of micro-crack faults are achieved. The system adopts an 8-bit dynamic coding mechanism to accurately position the fault type, and adjusts the opening or torque of the actuator in a linkage manner. The method has multi-parameter cooperative sensing, early fault early warning and self-adaptive control capabilities, and the reliability and safety of the ball valve under complex working conditions are remarkably improved.

The invention particularly relates to a double-sealing special-shaped ball valve which comprises a valve body, a valve rod rotating and lifting operation mechanism movably installed at the top of the valve body and a connector arranged at the bottom end of the valve rod rotating and lifting operation mechanism. A notch is formed in the top of the special-shaped ball valve clack movably installed in the valve body and can be tensioned, a thin-layer slotting plate part is arranged at the bottom of the special-shaped ball valve clack, deformation is easier, a side through opening is formed in the middle of the special-shaped ball valve clack and used for switching rapid water passing, and therefore the whole structure is an inverted-C-shaped special-shaped ball, and the special-shaped ball valve has the high opening and contracting functions. The left side and the right side of the special-shaped ball valve clack shrink and deform towards the middle portion, the two inclined holes close the notch in the top of the special-shaped ball valve clack, so that the second sealing gasket is separated from the first sealing gasket, and at the moment, in the whole rotating opening and closing process of the valve, the second sealing gasket of the special-shaped ball valve clack and the first sealing gasket of the connecting pipe do not rub; the service life is long.

A cryogenic ball valve (1) comprises a valve body (2); a valve body extension (4a) delimiting, together with the valve body (2), a valve inner chamber (40) and defining a valve top entry opening (41); a removable bonnet (5) closing said inner chamber (40) at said top entry opening (41); a closure member assembly (3) removably received in the valve body (2) and comprising a ball closure member (31), a respective sealing seat (32), and a support cage (33) supporting the ball closure member (31) and the sealing seat (32); an extended stem (6) comprising a first end connected to the ball closure member (31) and a second end protruding from said inner chamber (40) through the removable bonnet (5) and connected to valve actuation means; and a thermal insulation assembly (7; 7′) removably received in said inner chamber (40) and configured so as to thermally separate a first region of said inner chamber (40) adjacent to the valve body (2) from a second region of said inner chamber (40) adjacent to said top entry opening (41).The closure member assembly (3), the stem (6), and the thermal insulation assembly (7; 7′) form a removable unit (10; 10′) which can be inserted / removed in one piece into / from said inner chamber (40) through said top entry opening (41).The support cage of the closure member assembly comprises a cup-shaped element having a lateral wall laterally surrounding the ball closure member and a bottom wall supporting the ball closure member.The lateral wall of the cup-shaped element comprises, at an outer side thereof, at least one first contact surface, and the valve body comprises, at an inner side of a lateral wall thereof, at least one second contact surface, wherein said at least one first contact surface and said at least one second contact surface abut against each other preventing displacements of the closure member assembly and the valve body relative to each other in a peripheral direction thereof.

The top-mounted C-shaped wear-resistant ball valve comprises a valve body, an open type flow channel structure is arranged in the valve body, the open type flow channel structure comprises an upstream end, a downstream end and an oval valve cavity, a valve seat is arranged on the side, close to the upstream end, in the valve cavity, and the sealing face of the valve seat is arranged back to the flow direction of a medium; a C-shaped ball body is further arranged in the valve body, the rotation center of the C-shaped ball body and the geometric center of the sealing face of the C-shaped ball body are arranged in an eccentric mode, the rotation center of the C-shaped ball body and the circulation center line of the valve seat are arranged in an eccentric mode, and in the process from opening to closing of the valve, the valve seat moves slightly along a flow channel. The C-shaped ball body generates double-vector cam motion of rotation and translation and is matched with the valve seat to achieve cam wedge-caulking type torque sealing, the double-vector cam wedge-caulking type torque sealing valve can be suitable for key stations with large calibers and large pressure differences, the opening and closing torque is small, and the service life is long.

The invention relates to the technical field of industrial automation and control, and discloses a top-mounted high-temperature-resistant hard sealing ball valve and a self-adaptive dynamic control system of the top-mounted high-temperature-resistant hard sealing ball valve. The system aims at solving the technical problem that due to the fact that fixed driving torque is adopted, the sealing face of the valve is excessively abraded or the risk of heat jamming exists. The system is characterized by comprising a multi-point distributed sensing subsystem, a valve dynamic control unit and an intelligent electric actuating mechanism. A hybrid torque prediction model based on physical information and data driving is arranged in the valve dynamic control unit, the optimal torque is predicted in real time through sensing data, an executing mechanism is driven to respond dynamically, and the valve dynamic control unit has the online self-learning capacity. Accurate prediction and dynamic adjustment of the valve operation torque can be achieved, overstress damage is effectively avoided, the self-adaptability and generalization ability of the system are improved, and the service life of the valve is prolonged.

The invention belongs to the technical field of ball valve detection, and particularly relates to a ball valve wear resistance detection device which comprises a conveyor which comprises a support and a conveying belt. A fixing plate is arranged at the top end of the conveyor and located on one side of the conveying belt, a hydraulic cylinder is arranged on the side, away from the conveying belt, of the fixing plate, the output end of the hydraulic cylinder penetrates through the fixing plate, and a bearing plate is arranged at the end of the output end of the hydraulic cylinder. According to the ball valve wear resistance detection device, the friction block and the camera are arranged, when the ball valve wear resistance detection device is used, the rotating disc drives the friction block to rotate, the friction block rotates in the ball body of the ball valve and generates friction with the inner wall of the ball body of the ball valve, and the camera records a picture of the inner wall of the ball body and uploads the picture to an external computer; the computer judges and records whether the current ball valve ball body is qualified or not, and the conveyor drives the upper and lower ball valves on the conveying belt to move to the detection position for continuous detection; therefore, the detection efficiency can be greatly improved, and the device is suitable for detection of a large batch of ball valves in actual production.

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 discloses grinding and polishing equipment for a ball valve element and a machining method of the grinding and polishing equipment, and belongs to the technical field of ball valve element machining. According to the technical scheme, the grinding and polishing equipment is characterized by comprising a supporting frame and further comprising a placement assembly, and the placement assembly comprises a lifting frame, a lifting device, a placement disc, a supporting shaft and rolling wheels; the grinding device comprises a first rotating shaft, a rotating frame, a universal shaft, a grinding disc, a grinding frame, a first electric telescopic rod and a second grinding piece, the universal shaft is installed on the rotating frame, the grinding disc is installed on the rotating shaft, the grinding frame is installed on the supporting frame, the first electric telescopic rod is installed on the grinding frame, and the second grinding piece is installed on the first electric telescopic rod. According to the grinding device, the outer surface of the valve element of the ball valve and the inner wall of the middle round hole can be ground at the same time, the grinding disc in the grinding device can grind the outer surface of the valve element, the second grinding piece can go deep into the round hole to conduct synchronous treatment on the inner wall, the grinding time is greatly shortened, and the working efficiency is remarkably improved.

The utility model relates to a supercritical unit drain ball valve structure which comprises a valve body, a valve rod and a valve ball, the valve body is integrally manufactured, a valve cavity is formed in the middle of the valve body, and flange holes are formed in the two ends of the valve body respectively. One side of the valve cavity is communicated with one flange hole, and the other side of the valve cavity is communicated with the other flange hole through a water through hole; a valve rod hole is formed in the middle of the upper end of the valve body, and fixing supports are arranged on the two sides of the upper end of the valve body respectively. The valve body is of an integrated die forging structure, the situation that a split valve is prone to leakage is avoided, the valve body is of a floating ball structure, and the ball body is easier to seal under high pressure; medium chromium carbide is sprayed on the ball body and the valve seat, so that the spraying hardness, the binding rate and the porosity are guaranteed, and the sealing reliability is guaranteed; a compensation disc spring is arranged between the valve seat and the positioning pressing ring, so that the valve seat ensures the mounting reliability and the sealing reliability; the thrust ring is arranged on the valve rod to limit the displacement of the valve rod and prevent the valve rod from being separated from the ball body, and safety and reliability are achieved.

The invention discloses an anti-explosion pressure relief ball valve which comprises a pressure monitoring system and a control execution system. The pressure monitoring system is used for forming a pressure distribution model; the control execution system comprises a signal processing module used for calculating the pressure change rate; the abnormal pressure identification module is used for judging whether an abnormal pressure event exists or not according to the judgment condition; the multi-stage pressure relief control module is used for controlling the opening number of the micro-channel systems and controlling the pressure relief amount according to the relation between the current pressure and a preset threshold value; the stepped pressure relief structure comprises multiple stages of pressure relief cavities, so that the pressure relief process conforms to a pressure change formula; and the dynamic feedback control module is used for dynamically adjusting the opening amount of the micro-channel by adopting a PID control algorithm. The system has the following beneficial effects that through pressure monitoring, intelligent judgment and the multi-stage controlled pressure relief module, early recognition, accurate intervention and safe disposal of abnormal pressure events are achieved, and safety accidents such as pipeline burst and flange leakage are effectively prevented.

The invention relates to the technical field of valve pressure testing, in particular to a valve pressure testing device and a using method thereof.The valve pressure testing device comprises a detection water tank, a supporting frame is arranged on the detection water tank, a rotating support structure is rotationally arranged on the supporting frame, and an intermittent driving mechanism capable of driving the rotating support structure to intermittently rotate at all stations is arranged on the supporting frame; a plurality of clamping structures used for positioning and clamping the ball valve main body are arranged on the rotating support structure in the circumferential direction of the rotating support structure, and inflation and deflation pipeline structures used for inflating and deflating the ball valve main body are arranged between the clamping structures; the detection water tank, the rotary support structure, the intermittent driving mechanism, the clamping structure, the inflation and deflation pipeline structure, the feeding slide way structure, the discharging slide way structure and the like cooperate and cooperate with one another to complete exhaust and inflation at the same time, gas recycling can be achieved, exhaust operation and time are saved, and full-process automatic testing can be achieved.

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 invention discloses an all-welded ball valve pair valve body die, and particularly relates to the technical field of die sets, the all-welded ball valve pair valve body die comprises a lower die set, a positioning ring, a sleeve plate and a peripheral precise limiting welding mechanism; wherein the peripheral precise limiting welding mechanism comprises a limiting electric cylinder, a limiting frame, a limiting distance sensor, a butt joint distance sensor, a sliding frame, a linkage screw rod, a driving motor, a linkage screw rod rotating part, two sleeving blocks, a limiting clamping plate and a hot melting heater; wherein a port accurate limiting welding mechanism and an internal accurate limiting assembly are further arranged. By means of the peripheral precise limiting welding mechanism, precise limiting welding is conducted on the end opening position of the upper auxiliary valve body through the arc-shaped sleeve plate, the welding precision of the mold set on the ball valve auxiliary valve body is greatly improved, and therefore the problems that in the welding and extruding process of the ball valve auxiliary valve body, excessive extrusion is prone to occurring, or too shallow extrusion is caused, and the welding precision of the ball valve auxiliary valve body is affected are solved. And therefore, the welding accuracy of the mold group on the valve body of the ball valve pair is reduced.

The utility model belongs to the technical field of ball valves, and particularly relates to a ball body of a ball valve, which comprises a ball body, a flow channel hole for fluid to pass through is arranged in the center of the ball body, one end of the flow channel hole is an inlet end, the other end of the flow channel hole is an outlet end, and a plurality of spiral rifling grooves are arranged on the inner wall of the flow channel hole in an annular array mode. A plurality of groups of defoaming channels are formed in the spiral rifling groove, one end, close to the direction of the inlet end, of each defoaming channel is an inlet, the other end of each defoaming channel is an outlet, the hole diameter of each outlet is smaller than that of each inlet, and the hole diameters of the inlets and the outlets in the groups of defoaming channels from the inlet end to the outlet end tend to be gradually reduced. The shape and the layout of the spiral rifling groove can improve the flowing stability of the fluid, and the defoaming channel shrinks and crushes large bubbles in the fluid step by step to enable the large bubbles to be dissolved in the liquid, so that the detection precision of the metering equipment on the fluid flow is improved, and the quality of subsequent chemical preparations or liquid blending is guaranteed.

The invention belongs to the technical field of ball valve production equipment, particularly relates to a ball valve machining lathe and method for machining a raw material into an accurate spherical valve element, and aims to overcome the defects that in the prior art, after the valve element is turned, the valve element cannot be polished, and when the valve element is turned, waste chips cannot be conveniently collected. The lathe comprises a base, the base is of a box structure, a discharging hole is formed in the inner wall of the top of the base, a material guiding plate is installed in the discharging hole, the bottom of the material guiding plate extends into the base, a baffle is fixedly installed on one side of the top of the base, and a driving mechanism is connected to the baffle in a penetrating mode. According to the valve element machining device, a turned valve element can be ground and polished, so that good convenience can be provided when the valve element is machined, sweeps can be prevented from splashing everywhere when the valve element is machined, and meanwhile, the sweeps can be conveniently collected and cleaned.

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 is adapted to be guided by a guide structure and compress the resilient member to separate from the engagement hole of the matching connector.

The invention relates to the technical field of ball valves, and discloses a ball valve butt joint structure which comprises two ball valve assemblies in coaxial butt joint, each ball valve assembly comprises a valve body, a valve element and a valve rod, each valve element is movably arranged in the corresponding valve body, one end of each valve rod penetrates through the corresponding valve body and is fixedly connected with the corresponding valve element, and the other end of each valve rod extends out of the corresponding valve body and is sleeved with a gear. The butt joint end face of each valve body is provided with a rack extending in the circumferential direction, and the rack of one ball valve assembly can be meshed with the gear of the other ball valve assembly. A limiting pin is elastically connected into at least one valve body, a limiting hole matched with the limiting pin is formed in the butt joint face of at least another valve body, the limiting pin can move between a locking position and an unlocking position in the axial direction relative to the valve bodies, the limiting pin is inserted into the limiting hole in the locking position, and the limiting pin is disengaged from the limiting hole in the unlocking position. According to the ball valve butt joint structure, locking and opening of the two ball valve assemblies can be completed only through two actions, and operation is rapid and convenient.

The utility model relates to the technical field of clamps, in particular to a clamp for machining a ball body of a ball valve, which comprises a clamp component, and the clamp component comprises a bottom plate and an electric cylinder. When the device works, a spherical workpiece is placed between the two conical clamping seats, a pipe hole of the spherical workpiece is opposite to the conical clamping seats, one end of the piston rod of the electric cylinder extends to drive the movable plate to move leftwards, and then the conical clamping seat on the vertical plate can be driven to be close to the conical clamping seat on the fixed seat; the two conical clamping seats are inserted into a pipe hole of a spherical workpiece and clamp the spherical workpiece, the friction force between the spherical workpiece and the conical clamping seats can be increased through the arrangement of the rubber pads, the rubber pads are anti-skid, and the conical clamping seats and the spherical workpiece can keep rotating synchronously, and when the angle of the spherical workpiece needs to be adjusted, one end of an output shaft of the motor rotates to drive the gear to rotate; the gear drives the gear ring, the rotating column, the conical clamping base and the spherical workpiece to rotate, and angle adjustment of the spherical workpiece can be achieved without disassembling the spherical workpiece and clamping and fixing the spherical workpiece again.