70 results about "Diaphragm valve" patented technology

The utility model provides a kind of air supplementing device of single-stage octagonal magnetron sputtering machine, including external air pipe, gas disperser and metal sealing joint, external air pipe gas inlet end is divided into fast filling branch and slow filling branch, the first diaphragm valve and the second diaphragm valve are respectively arranged in fast filling branch and slow filling branch, for independent control branch on-off, gas control knob is located in the input end of second diaphragm valve, for accurately setting left branch gas flow, external air pipe output end is sealed into cavity, gas disperser is arranged in external air pipe output end, dense small gas holes are arranged in the input end of gas disperser, for evenly diffusing gas and preventing cavity bottom particles from lifting and damaging wafer, the device can accurately supplement air to balance air pressure inside and outside cavity, facilitate safe opening valve, and air supplementing can effectively protect wafer.

This invention provides a medical injection one-way valve, comprising a front housing and a rear housing connected together, forming a cavity between them and extending a connecting tube communicating with the cavity. A limiting block is provided within the cavity of the rear housing, and a gasket valve core overlaps within the cavity of the front housing, with a gap between the gasket valve core and the limiting block on the side closest to the rear housing. The contact surface between the gasket valve core and the front housing has a recessed portion with radially distributed reinforcing ribs. When fluid flows in the forward direction, it impacts the gasket valve core, causing it to deform and contact the limiting block, forming a stable passage through the gap; when flowing in the reverse direction, the non-recessed surface is pressed tightly against the front housing, blocking the backflow. This invention increases the pressure resistance of the gasket in the one-way valve to 500 kPa, effectively solving the problems of easy bulging and insufficient sealing of traditional diaphragm valve cores.

The utility model belongs to the field of dairy production discloses a kind of processing device for reducing yogurt viscosity, including material tank, water pump, liquid outlet pipeline, diaphragm valve and control box, the input end of water pump is connected material tank, and output end connects liquid outlet pipeline;Diaphragm valve is installed on liquid outlet pipeline;Control box is electrically connected with water pump.Yogurt is subjected to high-speed shearing by impeller in water pump to realize preliminary viscosity reduction, and then realizes secondary viscosity reduction by diaphragm valve extrusion.The utility model can not only reduce the viscosity of yogurt, but also improve detection efficiency and accuracy;The utility model is suitable for dairy production industry, for realizing viscosity reduction to large viscosity yogurt.

The diaphragm valve claimed in the present application comprises a valve body, a core assembly, a winding coil and a diaphragm, and a valve port is formed on the valve body; the core assembly comprises a movable core, a plug is connected to the movable core, and the plug can drive the opening / closing of the valve port; the winding coil is sleeved on the movable core; the diaphragm is accommodated in the valve body, the first end of the diaphragm is sleeved on the movable core, and the second end of the diaphragm is pressed and limited by the valve body to prevent the medium in the valve body from entering the gap between the winding coil and the movable core; wherein a guide portion is formed on the diaphragm, the guide portion is arranged between the first end and the second end, and the diaphragm can elastically deform with the guide portion as the initial yield point. In this way, on the one hand, the movement resistance of the movable core is reduced, thereby reducing the coil power of the winding coil required to drive the movable core; on the other hand, the consistency of the deformation part of the diaphragm is ensured, and the reliability and repeatability of the diaphragm valve are enhanced.

The present invention circumvents a rapid pressure rise due to hydraulic shock while making it possible to maintain a good closed state.　The present invention comprises: a contact part 24a which is brought into contact with a valve seat; a deformation part 24b which is elastically deformed during opening and closing; and a plate-shaped part 25 which is formed from a material having a higher hardness than the contact part 24a and the deformation part 24b, and to which the contact part 24a and the deformation part 24b are attached. The plate-shaped part 25 is provided with a protruding part 25a that is inserted into a cylindrical part, the tip of which is provided with the valve seat. The contact part 24a is provided with an insertion hole 24ha through which the protruding part 25a can be inserted, and an annular projection 24p that surrounds the insertion hole 24ha, has a diameter smaller than the inner diameter of the cylindrical part, and projects in the seating direction of the contact part 24a with respect to the valve seat. The annular projection 24p has a projection length defined such that the insertion length into the cylindrical part when the contact part 24a is seated on the valve seat is shorter than the insertion length of the protruding part 25a into the cylindrical part.

The present invention discloses a tangential flow filtration (TFF) chip. The TFF chip features a chip substrate assembly having a closed fluid channel and a membrane assembly. The membrane assembly includes a concentrating membrane or filtration membrane, a low-volume channel, and a standard-volume channel. One or more diaphragm / valve complexes on an integrated transfer tube and valve insert are interposed along the closed fluid channel. The closed fluid channel is in valve-controlled fluid communication with the low-volume channel and the standard-volume channel. This enables efficient and controlled filtration within a compact, integrated TFF chip design.

This invention relates to an online monitoring device for diaphragm deformation of an ultra-clean diaphragm valve based on a flexible piezoelectric thin film, comprising: a piezoelectric thin film sensor array for converting the deformation state of the diaphragm valve into an electrical signal to be extracted; a signal extraction component for extracting the electrical signal to the outside of the valve body; a signal acquisition component for acquiring the electrical signal extracted to the outside of the valve body; and a consistency comparison and discrimination component for judging the deformation state of the electrical signal and obtaining the deformation state judgment result; wherein the piezoelectric thin film sensor array, the signal extraction component, the signal acquisition component, and the consistency comparison and discrimination component are connected sequentially. This invention eliminates the need for sensor placement on the medium side, does not affect the cleanliness of the ultra-clean fluid channel, and uses relative consistency as the criterion, reducing the dependence on absolute amplitude calibration, making it suitable for engineering installation and online early warning.

This utility model belongs to the field of high-purity specialty gas storage technology, specifically a high-purity specialty gas storage device, including a tank. A diaphragm valve is installed on the exhaust pipe, and a pressure regulator is connected to the other end of the diaphragm valve. A pressure gauge and a flow meter are installed on the pressure regulator, and a particulate filter is connected to the other end of the pressure regulator. A gas guide pipe is connected to a high-purity specialty gas pipeline in the laboratory. High-purity specialty gas enters the diaphragm valve from the exhaust pipe, then enters the pressure regulator from the diaphragm valve, and then the depressurized high-purity specialty gas enters the particulate filter from the pressure regulator. The particulate filter filters the high-purity specialty gas, removing metal ions from the gas. This structure can effectively reduce the precipitation of metal ions and purify trace metal ions in the gas, ensuring the purity of the high-purity specialty gas and improving the storage effect of high-purity specialty gases.

This utility model relates to an explosion-proof and breathable diaphragm valve, comprising: a valve seat and a valve body; an exhaust channel is provided on the valve seat, and an umbrella-shaped diaphragm is provided on the valve body. The umbrella-shaped diaphragm is open at one end, with the open end facing the exhaust channel. When the umbrella-shaped diaphragm is in its initial state, it closes the exhaust channel. A connecting hole is provided on the valve seat, and a reset mechanism is provided on the valve body. The reset mechanism is movably connected to the connecting hole and abuts against the valve seat. By providing an umbrella-shaped diaphragm on the valve body, this application enables the umbrella-shaped diaphragm to deform and open the exhaust channel when the pressure inside the battery pack exceeds the deformation threshold of the diaphragm, allowing gas to be discharged to the outside through the exhaust channel. Furthermore, when the pressure inside the battery pack is too high, the gas can push the valve body, causing the valve body to separate from the valve seat, further improving the pressure relief capacity.

1. The name of the design product: diaphragm valve. 2. The use of the design product: used in pipeline, open and close fluid and control flow. 3. The design points of the design product: the overall shape of the product. 4. The picture or photo that best shows the design points: perspective view.

The utility model discloses a kind of chemical liquid supply systems, including liquid path component and valve control component, liquid path component includes liquid path passage, multiple pneumatic diaphragm valves being arranged in liquid path passage, valve control component includes valve shell and multiple solenoid valves being installed in valve shell, valve shell has with driving gas source communication's air inlet passage, for with multiple pneumatic diaphragm valves one-to-one corresponding communication's multiple air outlet passages, and with multiple air outlet passages communication's one exhaust passage, solenoid valve number and air outlet passage number are same and one-to-one corresponding arrangement, air inlet passage and air outlet passage are opened and closed by each solenoid valve Communication, each air outlet passage and exhaust passage are opened and closed by each solenoid valve Communication, reduce assembly difficulty and error probability, improve the space utilization of valve control component, simplify the structure of overall system, also significantly simplify installation, debugging and maintenance work, reduce maintenance cost and time.

This utility model discloses a spring-loaded diaphragm valve, comprising a valve body, flow channel, valve cover, mounting base, valve stem, valve core, sealing push block, spring, diaphragm, internal insulation cavity, side groove, venting switching assembly, input end, output end, and control shaft. This utility model has the following advantages and effects: it improves the insulation method of the valve body, eliminating the need for an additional external insulation layer. The venting switching assembly is installed via a side groove, and warm air is introduced through the input end. After the warm air is introduced, the venting switching assembly automatically switches to the on state, connecting the input and output ends, allowing the warm air to smoothly enter the internal insulation cavity for internal insulation. After the warm air has entered, the venting switching assembly switches back to the off state to prevent leakage of warm air from the internal insulation cavity. The control shaft allows manual switching of the venting switching assembly from the off state to the on state when no warm air is introduced at the input end, facilitating the discharge of warm air.

The invention relates to a jet pump for oil drainage in a crankcase ventilation system of an internal combustion engine, comprising - an inlet opening 3 for supplying oil from an oil separator of the internal combustion engine, - a propulsion nozzle 5 for supplying a propellant medium, - an outlet opening 6 for returning the oil to a cylinder head chamber 7 of the internal combustion engine, - a check valve 8 arranged at the inlet opening 3 to prevent backflow of oil, - wherein the check valve is designed as a diaphragm valve 8.

The invention relates to a diaphragm valve (1) for controlling a fluid medium, comprising a solenoid armature (10) which is arranged to be longitudinally movable in an interior space (31) of a pole tube (30) which is closed by a diaphragm (20) and which is connected with the diaphragm (20) in such a way that the diaphragm (20) is configured to be transferred by a longitudinal displacement of the solenoid armature (10) between a closed position in which the solenoid armature (10) pushes the diaphragm (20) onto a sealing seat (41) and closes a fluid passage (42), in particular a fluid inlet (43), and an open position in which the solenoid armature (10) lifts the diaphragm (20) from the sealing seat (41) and opens the fluid passage (42), in particular the fluid inlet (43). The invention is characterized in that the interior space (31) of the pole tube (30) contains a fluid (32) which represents a fluid volume and a gas (33) which represents a gas volume, wherein the fluid volume is greater than the gas volume.

The invention relates to an actuator connection device for connecting an actuating unit (12a) of a valve (14a), in particular a diaphragm valve, of a process plant with a drive unit (16a) of the valve (14a), wherein the actuating unit (12a) comprises an actuating element (20a), preferably a diaphragm, of the valve (14a), with a connecting element (22a; 22b) and with a connection receiving unit (24a) which defines a recess (26a) which is provided to at least partially receive the connecting element (22a; 22b) in a connected state, wherein the connecting element (22a; 22b) forms a connection area (30a; 30b) towards an end arranged along a central axis (28a; 28b) of the connecting element (22a; 22b) for a connection with the connection receiving unit (24a). It is proposed that the connecting element (22a; 22b) in the connection area (30a; 30b) forms at least three retaining extensions (34a; 34b) which are intended to form at least a positive-locking connection with at least one receiving element (32a) of the connection receiving unit (24a).

The utility model discloses a kind of pneumatic diaphragm valves, it is related to pneumatic diaphragm valve technical field, including valve body, the top of valve body is provided with valve seat, and the top of valve seat is provided with mounting seat and pneumatic driver, the bottom of pneumatic driver is provided with valve stem, and the bottom of valve stem is provided with diaphragm assembly, diaphragm assembly includes diaphragm main body, the top of diaphragm main body is provided with mounting ring, and the bottom of mounting ring is provided with limit ring, the top of mounting ring is provided with recess and plug-in slot.The utility model is clamped in the inside of clamping groove by being set in the bottom of mounting ring Clamping ring, and the limit ring of mounting seat bottom is clamped in the inside of recess, to realize the limit connection of mounting ring and diaphragm main body, improve the sealing effect when diaphragm main body and valve seat connect, and limit plug-in rod is inserted in the inside of plug-in slot by being set, further the use stability of mounting ring and diaphragm main body, prevent diaphragm main body and mounting ring from sliding when using.

The utility model relates to a storage tank container technical field, more particularly, relate to a kind of breather on-line sterilization device and storage tank container.Breather on-line sterilization device includes filter, first pneumatic ball valve, second pneumatic ball valve, third pneumatic ball valve, fourth pneumatic ball valve, first pneumatic diaphragm valve, second pneumatic diaphragm valve, first drain valve and second drain valve;First pneumatic ball valve, filter and first pneumatic diaphragm valve constitute the breathing circuit of container, second pneumatic ball valve, filter, second pneumatic diaphragm valve and second drain valve constitute sterilization circuit, filter, third pneumatic ball valve and first drain valve constitute condensate circuit.The utility model is guaranteed by the setting of breathing circuit, tank body pressure balance;By the setting of sterilization circuit, it can be on-line sterilization after closing breathing circuit, avoids dismounting filter, improves sterilization efficiency.

The application discloses a diaphragm valve with a locking function, which comprises a valve body, a valve cover, a diaphragm, a valve rod, a valve rod nut, a hand wheel, a valve shaft, an interlocking mechanism and a locking mechanism, the valve shaft penetrates the diaphragm in the vertical direction, the valve shaft is fixedly connected with the middle part of the diaphragm, a support table is arranged in the valve body, an axle hole for the lower end of the valve shaft to pass through is arranged on the support table, the lower end of the valve rod is connected with the upper end of the valve shaft through the interlocking mechanism, the locking mechanism is arranged at the position corresponding to the lower end of the axle hole of the valve body, the locking mechanism comprises a locking sleeve, a plurality of locking rods and an operating ring, an annular locking groove is arranged at the position close to the lower end of the outer periphery of the valve shaft, when the valve rod drives the valve shaft to move to the lower limit position, the lower end of the valve shaft extends into the locking sleeve, and when the operating ring is rotated, the locking rod has a locking position in which the inner end is inserted into the annular locking groove and an unlocking position in which the inner end is separated from the annular locking groove. The diaphragm valve can be locked when it needs to be closed for a long time, so that safety accidents caused by accidental touching are prevented.

A pilot valve can include an inlet chamber, a diaphragm chamber coupled with the inlet chamber, a drain chamber coupled with the diaphragm chamber, a diaphragm, a pilot channel coupled with the inlet chamber, and an actuator in the pilot channel. The diaphragm can be movable between a closed position to prevent fluid flow between the inlet chamber and the drain chamber and an open position to allow fluid flow between the inlet chamber and the drain chamber. The actuator can selectively allow fluid flow out of the pilot channel through a port coupled with the pilot channel to movement of the diaphragm.

The utility model discloses a kind of press type control device for surface care liquid coating, including liquid storage container, baffle is equipped in liquid storage container, baffle is equipped with liquid passage, and elastic valve body assembly is equipped in liquid passage, the bottom of the lower layer of liquid storage container is open, flexible diaphragm valve and coating cloth pad are equipped at the opening of the lower layer of liquid storage container, the center of the top surface of flexible diaphragm valve is equipped with pressing head, more than one liquid guide through-hole is further equipped on flexible diaphragm valve, coating cloth pad is below flexible diaphragm valve, and elastic valve body assembly includes valve seat body, valve core and spring, valve seat body is equipped with liquid guide hole one and liquid passage, valve core upper portion is built in valve seat body by passing liquid passage, valve core lower portion extends valve seat body and is placed in the lower layer of liquid storage container, spring is sleeved on valve core upper portion, and valve core lower portion is further equipped with liquid guide hole two. The structure realizes the liquid control mechanism of " one press one out ", hand automatically closes, does not drip, and liquid output is uniform, which will not cause waste phenomenon.

This utility model discloses a diaphragm valve with an elastic load-equalizing diaphragm clamping structure, relating to the field of diaphragm valve technology. The utility model includes a valve body and a valve cover disposed above the valve body, and further includes: a main body mounted on the valve body; a compression part disposed within the valve body; and an mounting part located within the valve cover. The compression part includes a dispersion component disposed on the valve body; and a limiting component mounted within the valve body. The dispersion component includes a diaphragm disposed on the valve body, with several protruding strips fixedly connected to its top and bottom. By incorporating the compression part, this utility model solves the problem in existing diaphragm valves where uneven pressure on the diaphragm during use leads to fatigue cracks and damage due to uneven stress during frequent opening and closing, resulting in sealing failure and media leakage, thus affecting the normal operation of the diaphragm valve.

The utility model discloses a diaphragm valve suitable for low temperature environment relates to diaphragm valve technical field, and this diaphragm valve includes diaphragm valve main part, and the outer portion of diaphragm valve main part sets up respectively first protective housing and second protective housing, and first protective housing and second protective housing are adapted between, the both sides of first protective housing's outside all are provided with mounting mechanism. The utility model discloses the combination design of first protective housing and second protective housing provides reliable low temperature protection for diaphragm valve main part, wherein the multilayer structure cooperation of first protective housing and second protective housing, 304 stainless steel base layer is resistant to super low temperature and anticorrosion, and polyurethane foam heat insulation layer and space layer effectively block the internal and external temperature difference, and aluminum foil composite film moistureproof layer prevents water vapor permeation and influences heat preservation, and carbon fiber reinforced composite material protective layer improves overall strength and is resistant to low temperature brittle fracture, and cooperate electric heating layer can actively warm and prevent frost, ensure that diaphragm valve works stably under low temperature environment.

To provide a valve for a semiconductor manufacturing device and a diaphragm valve for the same that have excellent durability more than before, exert stable valve closing performance, are formed into a compact size, and facilitate performance evaluation.SOLUTION: In a valve for a semiconductor manufacturing device, an actuator part 3 for a high-pressure automatic valve including a force multiplication mechanism 8 for multiplying vertical load in an axial direction which is input from a piston 7 by utilizing a pitch difference of a threadably engaged body 16 comprising a threadably engaged screw or a helical structure is connected to a body part 2 including a valve element.SELECTED DRAWING: Figure 3

The application discloses a mobile full-automatic plate-and-frame cleaning machine, which comprises a plate frame, plate frames, a cleaning mechanism and a bearing mechanism, the plate frames are uniformly arranged on the plate frame, the cleaning mechanism is arranged outside the plate frame, and the bearing mechanism is arranged at the bottom of the cleaning mechanism; the cleaning mechanism comprises an explosion-proof electric control cabinet, a bottom box one, a directional wheel, an explosion-proof control button, an explosion-proof display screen, a moving frame, a top wall, a visual window, a servo motor one, a bottom box two, a servo motor two, a handle, a supporting strip, a rotating shaft, a connecting arm, a spray pipe, a spray head, a water injection pipe, a joint one, a guide pipe one, a guide pipe two, a water inlet pipe one, a pneumatic diaphragm valve one, a flowmeter, a water inlet pipe two, a pneumatic diaphragm valve two, a joint two, an explosion-proof emergency stop button and a photoelectric sensor. The scheme is aimed at the core pain point of the existing plate-and-frame cleaning machine, and through multiple optimization designs, the cleaning efficiency and effect are greatly improved, the applicable scene is widened, the convenience and tidiness are considered, and the unity of practicability, safety and economy is realized.

The utility model belongs to fuel cell test technical field especially relates to a kind of pressure reducing pipeline and fuel cell testing device for fuel cell testing device, the utility model provides a kind of pressure reducing pipeline for fuel cell testing device, comprising: pipeline connecting plate, air inlet pipe, diaphragm valve, pressure reducing valve, gas guide pipe, pressure relief valve and emptying pipe, the diaphragm valve and the pressure reducing valve are all fixed on pipeline connecting plate, the diaphragm valve is respectively connected with emptying pipe and the air inlet pipe in vertical direction both ends, diaphragm valve is connected with the gas guide pipe in horizontal direction one end, pressure reducing valve is connected on gas guide pipe, the gas guide pipe is connected with four-way joint in the diaphragm valve one end, the pressure relief valve is located on the four-way joint, and the position opposite with pressure relief valve is connected with air outlet pipe on the four-way joint, and air outlet pipe is used to transport the gas after pressure reduction. The utility model can realize seamless switching of gas cylinder, improve the accuracy of fuel cell test system.

A weir-type diaphragm valve operable to selectively enable liquid flow between two pipelines while directing a portion of the flowing liquid to an external pipeline. The valve comprising a valve body, comprising a diaphragm chamber with a concave weir having an upper surface with a bottom vertex, and an alarm port for enabling liquid communication between said diaphragm chamber and an exterior of the valve body to which the external pipeline is to be connected.

The utility model belongs to the technical field of diaphragm pneumatic valve, especially relates to a stable diaphragm pressing structure of pneumatic diaphragm valve diaphragm, including actuating mechanism casing, piston subassembly, spring, gas channel, the piston subassembly is connected swing axle, the lower extreme of swing axle is equipped with conical part, the below of conical part is equipped with diaphragm pressure axle, diaphragm pressure axle is used for the diaphragm pressing of diaphragm, the periphery of conical part is equipped with a plurality of ball bearings, ball bearings are located in the ball bearing movable cavity of diaphragm pressure axle, and conical part passes through ball bearing pressing diaphragm pressure axle action, the utility model provides a stable diaphragm pressing structure of pneumatic diaphragm valve diaphragm, under the same condition, the utility model's pressure stability is higher, and the force is bigger.

This provides an improved method for connecting a cassette assembly to the associated pressure distribution manifold. [Solution] A fluid handling cassette containing multiple diaphragm valves and pumps is configured such that its operating ports are located along the thin-walled or narrow end of the cassette. The operating passages within the cassette lead from the operating ports to the operating chambers of the valves and pumps located in the space between the plates constituting the cassette. Each plate has a nominal thickness that is thin enough to provide a rigid ceiling for the operating passages but thin enough to minimize the overall thickness of the cassette. The cassette can be inserted into and removed from an operating receptacle or manifold by its narrow end. Multiple such cassettes can be stacked together or spaced apart from one another to form a cassette assembly, providing a convenient method for inserting and removing the cassette assembly from its operating receptacle.

This invention provides a pneumatic diaphragm valve for high-purity electronic specialty gases, belonging to the technical field of pneumatic diaphragm valves. It includes a valve body, with a cylinder body fixedly connected to the top center of the valve body. A valve cap is disposed inside the cylinder body, with its bottom end extending into the valve body. A diaphragm is disposed between the valve body and the valve cap. A fixing plate is fixedly connected inside the cylinder body, and a piston rod is slidably connected to the center of the fixing plate. A piston body is sleeved on the outside of the piston rod, and multiple equidistant engagement holes are formed inside the piston body. A backlash prevention component is disposed inside the cylinder body and below the piston body. The backlash prevention component of this invention mechanically interlocks with the piston body when the valve is closed. Through the rigid engagement of the fixing hook and the engagement holes, the lifting force generated by fluid pressure fluctuations is borne by the interlocked metal component, rather than relying on a low-pressure spring for retention. This eliminates the chattering phenomenon between the valve rod and the diaphragm, avoiding the periodic micro-leakage caused by this.

The application relates to the technical field of deuterated ammonia purification, in particular to a deuterated ammonia purification and filling system and process. The system comprises a light-removing tower, a heavy-removing tower, a fine product cold trap, a filling row and a crude product cold trap, each device is connected through a specified pipeline, the light-removing tower, the heavy-removing tower and the filling row are connected with an online detection system, and some pipelines are provided with pneumatic diaphragm valves. The process takes 4N deuterated ammonia as raw material, carries out purification detection through the light-removing tower, directly fills qualified products, and re-purifies unqualified products through the heavy-removing tower; the heavy-removing tower product is filled after being qualified, and unqualified products are slowly purified; when the pressure of the equipment is higher than 0.4 MPa, the gaseous deuterated ammonia slowly enters the fine product cold trap, is vaporized after being slowly stored, and is filled, and the operation temperature and pressure range of each device are limited. The whole process flow is detected and processed through multiple stages, the purification and filling efficiency is effectively optimized, the energy consumption is reduced, the production cycle is shortened, and an efficient and energy-saving solution is provided for production units.