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116 results about "Blocked valves" patented technology
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A block valve is technically any valve that has the capacity to block movement in one or more directions. In practice, most people refer to a block valve as a valve that can prevent motion or allow motion to happen without restriction.
Multi-evaporator branch flow self-adaptive distribution two-phase cooling circulation system and control method thereof
ActiveCN119617679ARealize adaptive adjustmentReduce energy consumptionCompression machines with several evaporatorsFluid circulation arrangementBlocked valvesHigh load
The invention discloses a multi-evaporator branch flow self-adaptive distribution two-phase cooling cycle and a control method thereof, the multi-evaporator branch flow self-adaptive distribution two-phase cooling cycle mainly comprises a plurality of parallel evaporators, a condenser, a liquid storage device, a liquid pump and a connecting pipeline, and a ventilation liquid blocking valve is mounted at an outlet of each branch evaporator. The ventilation liquid blocking valve is mainly composed of a valve seat, a valve element and a floating ball, the opening degree of the valve is automatically adjusted according to the dryness of an inlet working medium under the action of gravity and buoyancy, and the larger the dryness is, the larger the opening degree of the valve is. When the heat loads of the branches are not synchronous, the circulation flow can be distributed in a self-adaptive mode according to needs, the larger the heat loads on the branches are, the higher the dryness of the corresponding working media is, the smaller the resistance of the ventilation liquid blocking valve is, and the larger the flow of the branches is. The smaller the thermal load on the branch is, the smaller the dryness of the corresponding working medium is, the larger the resistance of the ventilation liquid blocking valve is, and the smaller the flow of the branch is. The problem that a high-load branch is prone to being overheated and burnt due to small flow is solved, meanwhile, invalid flow of a low-load branch can be effectively reduced, and energy consumption of a liquid pump is greatly saved.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Precision valve sealing performance automatic detection device and detection method
ActiveCN119290264ABlocking is accurateavoid displacementFluid-tightness measurement using fluid/vacuumBlocked valvesMachine
The invention discloses an automatic detection device and detection method for the sealing performance of a precision valve, and the device comprises a machine body which is provided with a placement frame at the side edge; the detection mechanism is arranged on the placement frame; the detection mechanism comprises a lower plate body fixedly arranged at the top of the placing frame, an upper plate body positioned at the top of the lower plate body, and supporting columns fixedly arranged at four corners between the lower plate body and the upper plate body; a mounting plate movably sleeves the two supporting columns at the rear position, a plugging mechanism is arranged in the detection mechanism, the plugging mechanism comprises an enclasping assembly horizontally arranged between the upper plate body and the lower plate body, and the enclasping assembly movably penetrates through the mounting plate; according to the sealing device, the problems of low efficiency and insufficient automation degree existing in a traditional manual sealing mode are effectively solved through introduction of a sealing air cylinder, and in order to avoid accidental ejection of a valve which is installed in place due to the pressure effect in the sealing process, a holding assembly is designed; the enclasping assembly can be tightly attached to and limit the blocked valve.
Owner:JIANGSU YINSHI TESTING CO LTD
Self-compensating intelligent block valve
PendingCN120845546APlug valvesOperating means/releasing devices for valvesBlocked valvesStructural engineering
The invention relates to the technical field of block valves, in particular to a self-compensation type intelligent block valve. Comprising a valve body, a ball body is rotatably connected in the valve body, the valve body is provided with a liquid inlet and a liquid outlet, the upper side of the ball body is fixedly connected with a valve rod rotatably connected with the valve body, the upper side of the valve body is rotatably connected with a rotating rod perpendicular to the space of the valve rod, and the upper side of the valve body is provided with a first cavity; the rotating rod and the valve rod are in transmission through a power module, the valve rod is in limited sliding connection with an inserting rod, and the inserting rod is fixedly connected with a limiting column. According to the cut-off valve, the limiting column is clamped into the upper side of the limiting groove to accurately control opening and closing of the ball body, whether the ball body is in the opening and closing state or not is directly fed back to an operator through the extending length of the inserting rod, and transmission deviation caused by problem observation of the operator or pipeline vibration is avoided; therefore, an operator misjudges the state of the cut-off valve, and normal operation of the cut-off valve is affected.
Owner:WUZHOU VALVE
Manual orifice plate throttle valve convenient to adjust
PendingCN119467843APrecise control of flow rateeasy to controlOperating means/releasing devices for valvesSlide valveBlocked valvesThreaded rod
The manual orifice plate throttling valve convenient to adjust comprises a main valve body, a valve element control mechanism and a flow control mechanism, the valve element control mechanism for controlling the flow speed of liquid or gas is arranged in the middle of the main valve body, and the flow control mechanism for accurately adjusting the flow speed of the gas or the liquid is arranged on the surface of the valve element control mechanism. The main valve body comprises a stainless steel valve cavity, a valve element sliding cavity, an inflow cavity, an outflow cavity and a connecting assembly, and the valve element sliding cavity is formed in the middle of the stainless steel valve cavity in an up-down penetrating mode. According to the manual orifice plate throttling valve convenient to adjust, the valve element control mechanism is arranged to be matched with the flow control mechanism, the adjusting threaded rod is made to ascend by rotating the adjusting hand disc, meanwhile, the elastic spring pushes the flow blocking valve element to slide upwards on the inner wall of the valve element sliding cavity, and due to the fact that the inner diameters of the direct-flow communicating notches are the same, the flow blocking valve element can be conveniently adjusted. The flow speed can be accurately controlled according to the communication number of the direct-current communication notches, the flow inlet cavities and the flow outlet cavities on the two sides, and then the purpose of accurately controlling the flow speed can be achieved.
Owner:ZHEJIANG HONGSHENG PRECISION MASCH CO LTD
Safe smoke exhaust fireproof valve
ActiveCN120799113AOperating means/releasing devices for valvesValve members for absorbing fluid energyFlue gasBlocked valves
The invention relates to the technical field of fireproof valves, in particular to a safe smoke exhaust fireproof valve which comprises a valve body, an executing mechanism and a fire blocking valve plate arranged in the valve body, the executing mechanism is in driving connection with a driven assembly used for controlling opening and closing of the fire blocking valve plate, and an isolation base is arranged at one end of the valve body; a plurality of groups of guide vanes driven by cylindrical cams are arranged in the isolation seat, when the fire blocking valve plate is closed, the guide vanes are synchronously folded inwards to form a gradually-shrunk flue, the three groups of guide vanes generate progressive displacement through the wheel groove height difference design of the cylindrical cams, sequentially-reduced included angles are formed between the guide vanes and the valve plate, and the impact force of high-speed flue gas is dispersed step by step; a locking bolt attracted by magnetic force is matched with a wedge-shaped seam of a second rack, and the folding state of the guide piece is forcibly fixed to resist external disturbance; and the shifting assembly with the arc surface clamping block is arranged, the magnetic lock is triggered to be released through the moving time sequence of the first pushing strip, then the guide piece is driven to be unfolded, and pure mechanical linkage self-resetting is achieved.
Owner:江苏宏帝净化工程有限公司
Suspension type air control structure
The utility model discloses a suspension type air control structure which comprises a movable door hinged to a material opening of a flour mill, an air blocking valve is fixedly arranged on the movable door, and air channel holes which are in one-to-one correspondence are formed in the movable door and the air blocking valve. Air blocking plates are movably arranged at the positions, corresponding to the air channel holes, of the air blocking valve in a clamped mode, and a supporting frame used for preventing the air blocking plates from falling off is arranged outside the air blocking valve. The air blocking valve structure is convenient and fast to disassemble and assemble, a sealing structure of the movable door is adopted for sealing, a sealing rubber strip is not used any more, and therefore the conditions of rubber strip shrinkage and powder leakage are avoided. Besides, the movable door belongs to a normally-open device, and vibration during daily opening can enable dust on the air control structure to flow into an air suction pipe network along with an inner cavity, so that accumulated dust on the device is greatly reduced, the cleaning frequency is reduced, and the air control effect cannot be influenced.
Owner:COFCO ENG EQUIP ZHANGJIAKOU
Deep sea rapid barrier valve and method of use
The application provides a deep-sea rapid blocking valve and a use method. The rapid blocking valve comprises a valve body, a valve cover and a valve rod. The valve body is internally provided with a valve cavity. The valve cover is connected with one side of the valve body to form a closed space. A flow channel is arranged in the valve cavity. A one-way valve structure and a two-way valve structure are arranged along the flow channel. The inner side end of the valve rod extends into the valve cavity and is connected with the one-way valve and the two-way valve in linkage. The one-way valve and the two-way valve are both provided with sealing structures between the valve body and the inner wall of the valve body. The L-shaped integrated valve body type is arranged in a side-mounted structure. The two-way ball valve is integrated in the interior. The structure is compact, light in weight, small in size, reduces the external leakage points of the valve, is convenient to install, improves the pressure-bearing capacity and the sealing capacity.
Owner:CHINA SHIP DEV & DESIGN CENT
Pneumatic device for pneumatic system of commercial vehicle
The invention relates to a pneumatic device (1) for a pneumatic system of a commercial vehicle, the pneumatic device (1) comprising: a first housing (2) comprising a pneumatic inlet port (p1), at least one pneumatic housing outlet (10) and an internal output line (24); a second housing (8) assembled to the first housing (2) comprising a pneumatic housing inlet (11) sealingly connected to a pneumatic housing outlet (10) of the first housing (2), and an additional pneumatic outlet port, the first housing (2) containing a blocking valve (28) arranged in an internal output line, the blocking valve (28) being arranged in the first housing (2). The blocking valve is displaced between a substantially open position for allowing air flow in the internal output line and a blocking position for blocking the internal output line, the blocking valve being mechanically controlled according to a position or a connection state of the second housing, the blocking valve being mechanically controlled in a condition or case where the second housing is detached or not in contact with the first housing. The blocking valve is switched to its blocking position.
Owner:ZF CV SYST EURO BV
Fabricated water separation valve head and pre-filter
The utility model provides an assembly type waterproof valve head and a pre-filter. The assembly type waterproof valve head comprises a valve body and a waterproof elbow. The valve body comprises a main pipe body and a connector part, a water inlet end and a water outlet end are formed at the two axial ends of the main pipe body respectively, the connector part extends from the side wall of the main pipe body in the radial direction to be connected with a filter bottle of the pre-filter, and the inner diameter of the connector part is larger than that of the main pipe body. Two assembling steps located on the two radial sides of the main pipe body are formed at the joint of the connector part and the main pipe body, and a valve body assembling part is formed on each assembling step. The waterproof elbow is embedded into the valve body in a split mode and comprises a connecting straight section embedded into the main pipe body and connected with the water outlet end and a bent section extending towards the side where the valve body connector part is located, the tail end of the bent section extends out of the assembling step, and an elbow assembling part clamped with the valve body assembling part is formed on the peripheral wall of the bent section. The peripheral wall, facing the water inlet end side, of the bent section forms an isolation part for isolating the water inlet end and the water outlet end.
Owner:ZHEJIANG AIMOYING INTELLIGENT TECH CO LTD
Cutoff valve
The invention discloses a block valve which comprises a guide valve, a valve body component and a piston component. The valve body component comprises a valve port part, a first communicating port and a second communicating port, the first communicating port communicates with the valve port part, and the second communicating port communicates with the first communicating port through the valve port part; the piston component is located in the valve body component and can move in the axial direction of the valve body component so as to close or open the valve port part. The piston component comprises a first end and a second end which are opposite, the first end can abut against the valve port part, the second end is far away from the valve port part, a relatively independent first cavity is formed between the second end of the piston component and the valve body component, the valve body component is provided with a first connector part communicated with the first cavity, and a control pipeline of the pilot valve is connected with the first connector part. The pilot valve is used for switching the pressure state in the first cavity to form driving force for driving the piston component to move. The stop valve is high in reliability, and the failure probability can be reduced.
Owner:ZHEJIANG SANHUA COMMERCIAL REFRIGERATION CONTROLS CO LTD SHAOXING CITY
Gas lift system and method
An electric gas lift valve may comprise a side pocket mandril. The side pocket mandril may comprise a side pocket, a top thread connection, and a bottom thread connection. The side pocket may accommodate one or more block valves, a linear electric mechanical actuator (EMA), and electronics. The one or more block valves may be configured to carry a case of a housing, a governor, a cam sleeve, a torsion spring, one or more venturis, one or more dynamic seals, and a solenoid. The electric gas lift valve may provide for an adjustable discrete flow rate control.
Owner:SCHLUMBERGER TECH CORP
Automatic blowing and blocking valve for ash pipeline
The utility model discloses an automatic blowing and blocking valve for an ash pipeline, which comprises a valve body and an end cover, the valve body is provided with an air inlet cavity and an air outlet cavity which are communicated with each other, a pushing cavity is arranged between the end cover and the valve body, the valve body is provided with an air outlet I communicated with the air outlet cavity, and the lower part of the air outlet I is provided with an anti-blocking component; the anti-blocking assembly comprises a shell, and an air outlet II and an anti-blocking valve assembly are arranged in the shell; the anti-blocking valve assembly is arranged between the air outlet I and the air outlet II; the anti-blocking valve assembly comprises an elastic piece, a base plate piece, an anti-blocking valve sealing ring and a connecting bolt, a groove is formed in the inner ring of the anti-blocking valve sealing ring, the elastic piece is arranged on the lower portion of the base plate piece and connected with the base plate piece through the connecting bolt, and the base plate piece is arranged in the groove of the anti-blocking valve sealing ring in a sleeved mode. According to the scheme, an anti-blocking isolation structure of a tower spring and a glass ball in the prior art is replaced by the designed anti-blocking assembly, it is effectively guaranteed that the problem that the tower spring is stuck and fails due to the fact that ash is accumulated on the tower spring is solved, and it is guaranteed that the blowing assisting valve can work stably.
Owner:SUQIAN QIRUI ENVIRONMENTAL PROTECTION TECH CO LTD
Humidity blocking valve
1. Name of the design product: Moisture-blocking valve. 2. Use of the design product: To balance the air pressure inside and outside the battery pack. 3. Design key points of the design product: Lies in the shape. 4. Picture or photograph that best shows the design key points: Perspective view 1.
Owner:CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
Multi-channel single-hole channel assembling machine
The utility model relates to the technical field of channel body assembling, in particular to a multi-channel single-hole channel assembling machine which comprises a machine frame, a disc assembly is installed on the surface of the machine frame, and an assembling mechanism is arranged on the surface of the machine frame and located on the outer side of the disc assembly. A channel body feeding mechanism, a choke valve feeding mechanism, a sealing ring feeding mechanism and a channel upper cover feeding mechanism are sequentially arranged on the outer side of the machine frame in the circumferential direction, and a defective product discharging line is further arranged on the surface of the machine frame. According to the automatic feeding device, four parts including the channel body, the choke valve, the sealing ring and the channel upper cover can be sequentially and automatically fed, whether neglected loading exists or not can be visually judged through the choke valve and the sealing ring, ultrasonic welding is conducted after loading is completed, then silicone oil is sprayed for lubrication, and finally finished products are discharged; all actions of the device are automatically realized, no personnel is needed, the efficiency is improved, the precision is improved, and the production cost is reduced.
Owner:XIAMEN XINRUITE INTELLIGENT TECH CO LTD
Passage control device, cooking appliance and control method of cooking appliance
ActiveCN115886560BOperating means/releasing devices for valvesLift valveBlocked valvesControl valves
The application discloses a channel control device, a cooking utensil and a control method of the cooking utensil. The channel control device comprises a blocking valve, a driving pump and a control valve. The blocking valve is used for opening or closing a connecting channel communicated with a cooking cavity of the cooking utensil. The driving pump is communicated with the blocking valve through a pipeline to drive the action of the blocking valve. The control valve is arranged in the pipeline and is used for connecting or disconnecting the pipeline. The pipeline is disconnected by the control valve, the keeping of the opening state of the blocking valve is realized, the driving pump does not need to continuously run, the running time of the driving pump in the air exchange process is shortened, the service life of the driving pump is prolonged, the failure rate of the driving pump is reduced, the use cost of the user is reduced, and the use experience of the user is improved.
Owner:FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
Cutting machine blanking device for metal plate manufacturing
ActiveCN222327468Ureduce exhaust velocityEnhanced air resistanceMetal working apparatusBlocked valvesPiston
The utility model discloses a cutting machine blanking device for sheet metal manufacturing, which belongs to the technical field of sheet metal manufacturing equipment, and comprises a base, the front part of the base is rotatably connected with a roller, the rear part of the roller is provided with a universal wheel, the inner end of the rear part of the base is fixedly connected with a choke valve, and the choke valve penetrates through the base. A guide column is fixedly connected to the base, a sealing cylinder is fixedly connected to the upper end of a choke valve, the choke valve is communicated with the inner space of the sealing cylinder, a shovel base is slidably installed on the guide column, a piston frame is fixedly connected to the rear portion of the shovel base, the piston frame is pulled upwards, then a device is pushed forwards, and a metal plate is shoveled up through the shovel base. Then the device is pulled backwards, the downward weight of the metal plate acts on the shovel base, the shovel base acts on the piston frame, the piston frame slides downwards along the sealing cylinder, air resistance is increased through the choke valve, the exhaust speed of the sealing cylinder is reduced, the metal plate slowly descends, and therefore discharging is convenient.
Owner:SUZHOU JIANYICHENG PHOTOELECTRIC TECH CO LTD
Air bag type fluid block valve
The utility model relates to an air bag type fluid block valve. The device is suitable for the technical field of pipeline supply cut-off equipment. According to the technical scheme, the air bag type fluid block valve is characterized in that the air bag type fluid block valve is provided with a valve seat, an air bag is installed on the inner wall of the valve seat, an air pipe is connected to the air bag, and the air pipe extends out of the valve seat and is communicated with an air source. Thus, when the pipeline needs to be cut off, air is supplied to the air bag in the cut-off valve installed on the pipeline, the air bag can be rapidly inflated and cut off, and due to the fact that the air bag has high elasticity in the inflation process, the good buffering effect on fluid in the pipeline is achieved, and the water hammer phenomenon can be effectively avoided.
Owner:POWERCHINA HUADONG ENG CORP LTD
grey lock pressure stop valve
The present disclosure relates to a grey lock pressure charging stop valve, comprising a valve body, a valve seat, a valve rod and a valve disc, further comprising a driving device, a first buffer structure and a second buffer structure, the valve rod is controlled by the driving device to sequentially have a first displacement and a second displacement in the direction of the valve seat, so as to press the valve disc on the valve rod tightly on the valve seat; the first buffer structure and the second buffer structure are respectively arranged between the valve rod and the valve disc; the first buffer structure is configured to buffer the valve seat when the valve rod enters the first displacement; the first buffer structure and the second buffer structure are configured to buffer the valve seat together when the valve rod continues to move from the first displacement to the second displacement. The impact force on the valve seat is buffered by two sections, which avoids damage to the sealing surface of the valve disc and / or the valve seat due to excessive impact force, resulting in valve sealing failure, leakage accidents, safety and economic losses.
Owner:SHAANXI AEROSPACE PUMP & VALVE TECH GRP CO LTD +1
One-way valve for aluminum pipe
The utility model relates to the technical field of one-way valves, in particular to a one-way valve for an aluminum pipe, which comprises a cylindrical valve body, a valve seat is arranged in the valve body and fixedly arranged along the inner wall of the valve body, a valve core is movably arranged in the valve seat, the outer diameter of the valve core is smaller than the inner diameter of the valve seat, and the outer diameter of the valve core is larger than the inner diameter of the valve seat. A limiting device used for blocking the valve element is arranged at the bottom of the valve seat, a baffle ring used for blocking the valve element is arranged at the top of the valve seat, it is guaranteed that the valve element is always kept at the correct position in the sliding process, the situation that the valve element deviates from the center due to shaking or impact is avoided, the valve element is prevented from inclining or rotating in the valve seat, the stability of the valve element is improved, and the service life of the valve element is prolonged. And the service lives of the valve core and the valve seat are prolonged.
Owner:ZHENGZHOU JINLIFENG MASCH EQUIP CO LTD
Valve arrangement
PendingDE112023002449T5Vessel mounting detailsOperating means/releasing devices for valvesBlocked valvesMechanical engineering
A valve assembly (1) comprises a body (11) and a plurality of valve subassemblies. The valve subassemblies have a check valve (17) mounted at a first mounting hole in the body and an electromagnetic valve mounted at a second mounting hole in the body. A second flow passage (13) has a common port (37), a linear first section (33) extending from the common port, a linear second section (34) extending from the first section while bent, a linear third section (35) connecting the first mounting hole to the second section, and a linear fourth section (36) connecting the second mounting hole to the second section. The third section intersects the second section at an angle equal to or less than 90° with respect to a first connection point of the second section to the first section.The fourth section extends parallel to the second section from an end opposite the first connection point with reference to a second connection point of the second section with the third section.
Owner:JTEKT CORP
Throttling cut-off device
ActiveCN222910783UOperating means/releasing devices for valvesLift valveBlocked valvesStructural engineering
The utility model relates to the technical field of valves, and discloses a throttling stop device which comprises a throttling stop valve, a driving assembly, a pressure sensor, a flowmeter and a controller, the throttling stop valve comprises a valve body, a valve rod, a valve seat and a valve element, an input port is formed in the bottom of the valve body, and an output port is formed in one side of the valve body. A mounting hole communicated with the output port is formed in the top of the valve seat, the valve rod can be inserted into the mounting hole in an up-down moving mode, the valve seat is mounted at the bottom of the mounting hole and provided with a valve seat hole, the top end of the valve seat hole is communicated with the mounting hole, and the bottom end of the valve seat hole is communicated with the input port. A valve cone which is gradually narrowed from top to bottom is arranged at the bottom of the valve element, the bottom end of the valve cone is embedded into the top end of the valve seat hole and blocks the valve seat hole, the driving assembly is connected with the valve rod and can drive the valve rod to move up and down, and the controller is electrically connected with the driving assembly, the pressure sensor and the flow meter. According to the utility model, the flow and pressure at the output port can be accurately controlled.
Owner:GUANGZHOU DONGSU PETROLEUM D&E EQUIP
motor vehicle
Owner:AUDI AG
Fuel vapor processing device
Fuel vapor processing device (20), comprising: a container (22) with an adsorbent for adsorbing fuel vapor generated in a fuel tank (15); a steam line (24) connecting the container (22) and the fuel tank (15); as well as a shut-off valve (40) arranged in the steam line (24), wherein the shut-off valve (40) is closed when a stroke amount is less than a predetermined amount, and the shut-off valve (40) is open when the stroke amount is greater than or equal to the predetermined amount, wherein the shut-off valve (40) has a stepper motor (50) designed to adjust the stroke amount, characterized by the fact that the fuel vapor processing device (20) comprises an ECU (19) which is configured • to determine (S101) whether an initialization request is present to initialize the shut-off valve (40) in order to rotate the shut-off valve (40) in the valve closing direction to a predetermined initial position, and, • when an initialization request to initialize the shut-off valve (40) is present (S101: YES), to determine (S102) whether the fuel tank pressure (15) is within a specified pressure range close to ambient pressure, wherein the ECU (19) is further configured to, if the fuel tank pressure (15) is within the specified pressure range close to ambient pressure (S102: YES), set a second step count (S2) that is greater than a first step count (S1) that the stepper motor (50) is turned in the valve closing direction when the tank pressure is outside the specified pressure range (S102: NO).
Owner:AISAN IND CO LTD
Choke valve and surgical approach instrument
The utility model relates to a choke valve and a puncture approach instrument, the choke valve is used for sealing an approach channel in an operation approach instrument, and the choke valve comprises an external sealing cover, a middle sealing piece and a fixing piece; the outer sealing cover is provided with a first flange and a second flange; the fixing piece comprises a first groove; the first flange is matched with the first groove so as to connect the fixing piece and the external sealing cover; the middle sealing piece is located between the fixing piece and the outer sealing cover, and the second flange abuts against the middle sealing piece so that the middle sealing piece and the fixing piece can be kept fixed. The interiors of the external sealing cover, the middle sealing piece and the fixing piece are communicated to form an inlet of the choke valve; a notch is formed in the end, away from the fixing piece, of the outer sealing cover and serves as an outlet of the choke valve. In the embodiment of the invention, the external sealing cover and the middle sealing piece are matched to realize internal and external dual sealing, and the external sealing cover and the fixing piece are matched to provide integral sealing, so that the sealing performance of the choke valve is improved, and a sealing guarantee is provided for establishing and maintaining pneumoperitoneum.
Owner:SUZHOU SHITONG MEDICAL TECHNOLOGY CO LTD
Fluidic valve oscillator
The application belongs to the field of oscillators, and particularly relates to a jet flow valve rotating oscillator, which rotates a flow blocking valve in a working cavity, relies on the fluid itself to push the flow blocking valve to rotate, can achieve that the jet flow passing through the flow blocking valve forms jet flows which are in a state of increase and decrease and dynamically change in an upper cavity and a lower cavity, the change of the jet flow in turn pushes the flow blocking valve to rotate back and forth, and further continuously changes the flow area of an outlet hole and controls the opening and closing of an upper feedback channel and a lower feedback channel, under the joint action of the upper feedback channel, the lower feedback channel and the flow blocking valve, periodic fluid oscillation is self-excited, the oscillation amplitude is obviously increased, and mechanical oscillation effect is achieved, which is beneficial to realize multi-dimensional composite vibration of a pipe column system.
Owner:CENT SOUTH UNIV
Anti-freezing leakage-proof pressure gauge connector
Owner:RED FLAG METER CO LTD +1
Anti-locking slip increasing structure for lower end part of valve rod
The utility model relates to the field of valve maintenance, and discloses a valve rod lower end anti-locking slip increasing structure which comprises a transmission sleeve used for supporting, the top end of the transmission sleeve is fixedly connected with a supporting sleeve, the interior of the supporting sleeve is connected with a rotating column in a sliding mode, and the exterior of the rotating column is fixedly connected with an adjusting handle. A blocking valve is rotationally connected to the interior of the transmission sleeve, a mounting threaded column is fixedly connected to the bottom end of the rotating column, the bottom end of the mounting threaded column is connected with the interior of the blocking valve through a traction rod so as to achieve rotary opening and closing of the blocking valve, and a mounting groove is formed in the supporting sleeve. A fixing sleeve is fixedly connected to the interior of the mounting groove, and the exterior of the mounting threaded column is in threaded connection with the interior of the fixing sleeve. According to the utility model, the friction force outside the valve rod is reduced, the rotation smoothness of the valve rod is improved, the valve rod is prevented from being stuck due to long-term use, and the use stability is improved.
Owner:JIANGSU SHENTONG VALVE CO LTD +1
Valve element with filtering function
ActiveCN224188061UEasy to install and disassemblePlug valvesFiltration separationBlocked valvesVALVE PORT
Owner:XIAMEN DONGZHUO IND & TRADE CO LTD
Flow regulating valve
The utility model provides a flow regulating valve, which comprises a valve body, a flow regulating valve, a flow regulating valve and a flow regulating valve, each valve cavity is correspondingly and rotatably provided with one valve plate assembly, and the valve plate assemblies are used for opening or closing the valve cavities; the driving assembly is arranged on the valve body, the transmission structure is arranged between the driving assembly and the valve plate assemblies, the transmission structure is provided with two transmission sections which are arranged in a spaced mode, an included angle is formed between the extension directions of the two transmission sections, and the two transmission sections and the two valve plate assemblies are arranged in a one-to-one correspondence mode; the driving assembly is in driving connection with the two transmission sections, the transmission sections are in driving connection with the valve plate assemblies, and the driving assembly can drive the two valve plate assemblies to relatively rotate in the opposite directions so as to adjust the flow amount of fluid in the valve cavity. By means of the technical scheme, the problems that when an existing adjusting valve adjusts flow, adjusted airflow is unstable, and adjusting performance is poor can be solved.
Owner:JIANGSU DUNAN ENVIRONMENTAL CONTROL SYST CO LTD
Self-sealing type cold air flap valve
ActiveCN222650578USimple structureeasy to operateOperating means/releasing devices for valvesLift valveCold airBlocked valves
The self-sealing type cold air flap valve comprises a square shell, an electric actuator and two air blocking valve plates, the square shell is welded and fixed to an air duct, lifting lugs are symmetrically welded to the upper side and the lower side of the square shell, triangular side plates are symmetrically welded to the two sides of the opening end of the square shell, and the triangular side plates are welded to the two sides of the opening end of the square shell. The utility model relates to the technical field of cold air valves of cement manufacturing industry systems, in particular to a self-sealing type cold air flap valve which is simple in structure, convenient to operate, low in cost and high in practicability. The sealing device is simple in structure and convenient to operate, after the position of the transmission pin is finely adjusted and positioned through the fine adjustment supporting assembly, under the action of the electric actuator, the sealing edges on the air blocking valve plate and the shell generate mutual acting force to extrude the soft sealing rubber strip, the sealing effect is achieved, and the ideal sealing effect is achieved.
Owner:LIAOYANG TIANRUI CEMENT CO LTD