3073results about "Slide valve" patented technology

A multi-way valve adapted to control a flow of fluid to different thermal fluid circuits includes a valve housing, a valve flow controller, and a sealing system. The valve flow controller is arranged in the valve housing to control flow through the valve housing. The sealing system is configured to seal between the valve housing and the valve flow controller.

The present invention provides a quick connector for a hydrogen tube bundle vehicle, comprising: a male end, which includes a male gun seat, a gas distribution valve and a pilot valve; a female end, which includes a female gun seat, a gun head sleeve, an outlet valve core and a main valve core, the gun head sleeve is fixedly connected to the female gun seat through a gun body, and the gun body is provided with a gas replacement channel; wherein, in a first state, the pilot valve is closed to make the male end self-sealed, and the outlet valve core and the main valve core are closed to make the female end self-sealed, and in a second state, the gun head sleeve is aligned with the male gun seat and fits together, and the gas replacement channel can be connected to the internal channel of the female end through the main valve core to perform gas replacement, and the outlet valve core can be fit together with the end face of the pilot valve, the pilot valve, the outlet valve core and the main valve core are all opened to connect the internal channels of the male end and the female end, so that the quick connector can be opened under pressure, and the first state and the second state can be switched, so that the pressurized connection and pressurized disconnection of the male end and the female end can be completed.

The utility model discloses a high-pressure protection structure for pipeline safety management, which is arranged at the butt joint position of a conveying main pipe and comprises a housing component sleeved on the conveying main pipe and an active pressure relief component capable of switching the communication state of the housing component and the conveying main pipe according to the pressure in the conveying main pipe, the active pressure relief assembly comprises a pressure relief pipe communicated with the main conveying pipe, the pressure relief pipe is sequentially divided into a liquid inlet section, a transition section and a liquid outlet section in the length direction, the liquid inlet section is located in the main conveying pipe, a plugging cock is arranged in the liquid inlet section and the transition section in a penetrating mode, and the communication state between the liquid inlet section and the liquid outlet section is switched through the plugging cock; when the pressure in the conveying main pipe fluctuates greatly, liquid in the conveying main pipe is discharged through the pressure relief pipe, so that pressure relief is achieved, normal operation of the water supply and drainage system is guaranteed, safety and stability caused by pressure over-limit leakage are avoided, and safety management of the water supply and drainage system is facilitated.

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

A valve on which a valve plate is arranged in a valve housing interior space of a valve housing and fixed to a shaft, in which the valve plate together with the shaft can be displaced back and forth in directions parallel to a shaft longitudinal axis between a closed position and an intermediate position, and by rotation of the shaft about the shaft longitudinal axis can be pivoted back and forth between the intermediate position and a maximum open position. A shaft leadthrough for sealing the shaft with respect to the valve housing has a bellows which can be expanded and pushed together in the directions parallel to the shaft longitudinal axis, a first bellows end of this bellows being fixed to the valve housing, and a shaft sealing ring in which the shaft is rotatably mounted, being arranged on a second bellows end.

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

The invention relates to the technical field of valves, in particular to a high-pressure-resistant quick opening and closing flat valve which comprises a valve body, a first valve seat, a second valve seat, a valve plate and a valve rod. The first valve seat and the second valve seat are arranged in a medium channel of the valve body, the valve plate is arranged between the first valve seat and the second valve seat in a sealing and sliding mode, and the valve rod is in driving connection with the valve plate. The middle of the valve rod is slidably connected to a valve deck in the middle of the top of the valve body, the hand wheel driving mechanism is connected to the upper portion of the valve deck, a pressure relief pipeline is arranged on the valve body, and the two ends of the pressure relief pipeline are communicated with a high-pressure side cavity, back to the valve plate, of the first valve seat and a low-pressure side cavity, back to the valve plate, of the second valve seat respectively. The pressure relief pipeline is provided with a pressure relief control valve used for controlling connection and disconnection of the pressure relief pipeline. The pressure difference generated by high-pressure fluid on the two sides of the valve plate can be balanced before the valve plate is opened, the main factor causing huge operation torque is fundamentally eliminated, opening and closing of the valve plate are extremely labor-saving and rapid, and rapid opening and closing under the high-pressure working condition are achieved.

A closure mechanism for an opening defined by a center and an outer edge, includes multiple segments which can all together close the opening. Each segment has a first pivot lever and a second pivot lever and is controlled by the pivoting movements thereof. The segment along with its pivot levers forms a four-bar linkage. All first pivot levers are attached to a first base and all second pivot levers are attached to a second base. The relative movement between the first base and the second base leads to a drive movement for the pivot levers, wherein the second pivot lever is mechanically coupled to the first base via a cam gearing mechanism.

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

The invention discloses an anti-clogging valve for sewage treatment, and relates to the field of valves, the anti-clogging valve comprises a valve body and two butt joint pipes mounted on the outer side of the valve body, a water pipe is mounted at one end of each butt joint pipe, a valve clack is slidably mounted on the inner side of the valve body, and a sealing column is transversely arranged on the inner wall of the bottom of the valve body; the bottom of the valve clack is of an arc concave face structure corresponding to the sealing column. The material cleaning mechanism is used for cleaning dirt on the outer side of the sealing column, the material cleaning mechanism is installed on the inner side of the valve body, and the material cleaning mechanism comprises a scraping plate installed on the inner wall of the bottom of the valve body; by means of the material cleaning mechanism, in the downward moving process of the valve clack, the sealing column can be in a rotating state, dirt on the sealing column can be scraped off through a scraper and discharged along with water flow, the valve clack can make contact with the cleaned sealing column, the problem of dirt blockage is solved, and therefore the sealing and anti-blocking effects are achieved.

A proportional valve includes a casing and a valve trim. The casing has at least one fluid inlet, a fluid outlet, at least one first connection passageway, at least one second connection passageway and an accommodating space. The first connection passageway is connected with the fluid inlet. The second connection passageway is connected with the fluid outlet. The valve trim is located in the accommodating space, including a flow splitter an adjusting rotor. The flow splitter has at least one third connection passageway and at least one fourth connection passageway. The third connection passageway is connected with the first connection passageway. The fourth connection passageway is connected with the second connection passageway. The adjusting rotor has a channel and at least one blocking portion. The adjusting rotor is rotatably disposed on the flow splitter so that the blocking portion blocks a part of the third connection passageway.

The utility model discloses an anti-blocking regulating valve which comprises a valve body, a valve cover installed on the valve body, a support installed on the valve cover, an actuator installed on the support and a valve rod connected with the actuator. The bottom of the valve body is detachably provided with a bottom cover and a filter cartridge arranged between the bottom cover and the valve body; the bottom cover is provided with a plurality of flushing holes, a flushing chute communicated with the flushing holes and a cleaning discharge port communicated with the cleaning discharge port. Impurities in liquid can be filtered by arranging the filter cartridge, and blockage caused by accumulation of the impurities in the liquid flowing to the valve element is prevented, so that normal use of the valve is guaranteed; impurities generated after the interior of the valve body and the filter cartridge are flushed can flow into the flushing chute through the flushing hole, and uniformly flow to the cleaning discharge port through guiding in the flushing chute to be uniformly discharged, so that the interior of the valve can be flushed without disassembling the valve, and the flushing convenience is improved.

The utility model belongs to the technical field of gate valves, and discloses a high-pressure gate valve. The high-pressure gate valve comprises a valve body, a gate plate and a pilot sealing assembly. Wherein the valve body is provided with a medium channel, the flashboard is arranged in the valve body in a sliding and penetrating mode, a cavity is formed in the flashboard, the flashboard is provided with a pilot gate and a conduction gate, the cavity is communicated with the pilot gate, the flashboard is provided with a first position and a second position relative to the valve body, and when the flashboard is located at the first position, the pilot gate conducts the medium channel in advance; when the gate plate slides from the first position to the second position, the breakover gate communicates with the medium channel, the circulation inner diameter of the pilot gate is smaller than that of the breakover gate, the pilot sealing assembly comprises a pilot valve plate and a buffer valve seat, the buffer valve seat is fixedly contained in the cavity and communicates with the pilot gate, and the pilot valve plate can slide relative to the buffer valve seat. Therefore, the pilot gate is blocked or conducted. According to the high-pressure gate valve, the opening torque can be reduced, and the sealing performance of the high-pressure gate valve is improved.

The utility model discloses a gate valve rod protection structure, and particularly relates to the technical field of gate valves, the gate valve rod protection structure comprises a valve body and a valve rod body, the valve rod body is in threaded connection with the top surface of the valve body, a protection sleeve is fixedly installed on the top surface of the valve body, a rotating sleeve is movably connected in the protection sleeve, and the rotating sleeve is fixedly connected with the valve rod body. When the valve rod is used, the operation is simple, the exposed threads of the valve rod body can be hidden through the protective sleeve and the rotating sleeve, the joint between the protective sleeve and the rotating sleeve is sealed through the annular air bag, the sealing effect is good, the sealing effect is good, the sealing effect is good, and the sealing effect is good. Therefore, outside dust, moisture and various corrosive media are isolated and effectively prevented from invading the threaded area of the valve rod body, and the service life of the valve rod body is prolonged conveniently.

The utility model belongs to the technical field of gate valves, and particularly discloses a gate plate limiting mechanism for a hard sealing gate valve, which comprises a valve body, the outer surface of the valve body is fixedly connected with two symmetrical fixing blocks, one side of each fixing block is provided with an adjusting groove, and the inside of each adjusting groove is slidably connected with two symmetrical first moving rods. The limiting mechanism comprises two first moving rods, the interiors of the first moving rods are of hollow structures, the interiors of the two first moving rods are both slidably connected with second moving rods extending to the exteriors of the first moving rods, and the two second moving rods are both fixedly connected with positioning plates. The two-way threaded rod drives the two first moving rods to move relatively under the limitation of the adjusting groove, the two positioning plates can move relatively, meanwhile, the two positioning plates can clamp, position and limit an external pipeline, and therefore the device can be installed on the external pipeline more smoothly.

The utility model discloses a pressure balance fluid control valve which comprises a valve body provided with an input interface and an output interface, and the valve body is connected with an external pipeline through the input interface and the output interface; the valve element assembly is arranged in the valve body and used for controlling connection and disconnection between the input connector and the output connector. The pressure conduction assembly is connected with the valve element assembly so as to conduct pressure borne by the side, opposite to the fluid, of the valve element assembly to the other side of the valve element assembly. Pressure balance on the two sides of the valve element is achieved through pressure conduction, operating force is reduced, abrasion is reduced, the stability of the valve is improved, the service life of the valve is prolonged, and the overall reliability is enhanced.

The invention relates to a hydraulic valve, particularly provides a hydraulic valve assembly, and aims to solve or relieve the problem of pressure difference between an oil inlet cavity and an oil outlet cavity of a hydraulic valve under a part of working conditions in the prior art. In order to achieve the purpose, the hydraulic valve assembly comprises a main valve body, a main valve element assembly, a control oil cylinder, a control piston and a guide assembly, and the main valve body comprises a main oil hole and a main valve element hole; the main valve element assembly is inserted into the main valve element hole, and the main valve element assembly and the main valve element hole form a valve line sealing structure. The control oil cylinder is positioned above the main valve body; the control piston is installed in the main valve element assembly and extends into the control oil cylinder together with the main valve element assembly. The guide assembly is arranged above the control oil cylinder and used for controlling the movement direction of the main valve element assembly to form different working states. All the parts are matched with one another so that external high-pressure oil can be used for pushing the control piston to open the main valve element assembly. Under the condition that the technical scheme is adopted, the residual pressure difference is eliminated through verification of a test bed.

The invention relates to a cage valve (10) comprising a valve housing (12) with a valve inlet (14) and a valve outlet (16), a valve cage (20) which is arranged between the valve inlet and valve outlet (14, 16) in the flow channel, and a valve element (18) which is movably supported in the valve housing (12) in the axial direction (a) with respect to the valve cage (20), wherein the valve cage (20) has a guide region, which guides the valve element (18) in the axial direction (a), and a throttle region, which has multiple throttle channels (22) that are mutually spaced in the axial direction and are arranged in a distributed manner when viewed in the circumferential direction (u), so that different throttle rates can be set on the basis of the axial position of the valve element (18) relative to the valve cage (20).

The switching device includes a ten-way valve. The ten-way valve includes a lower body (first valve body), an upper body (second valve body), and a drive plate (third valve body). The switching device rotates each of the upper body and the drive plate relative to the lower body to switch an overlapping state in the Z direction (axial direction) between an opening (first opening) of each of the plurality of grooves (first grooves) of the lower body, a groove (second groove) of the upper body, and a through hole of the drive plate.

The present invention provides a method to produce a triple seal in a reversible gate valve utilizing only two seals that seal between the seat and the valve body on each of two seats in the gate. The method utilizes a hybrid seal configuration with only one U-shaped seal and one O-ring on each seat. The U-shaped seal on each seat is the primary seal, which is an upstream seal. Should the primary seal leak then the O-ring forms a secondary upstream seal. Should the secondary upstream seal leak then the valve is constructed so that the O-ring on the downstream seat creates a downstream tertiary seal. Since the seal configuration on each seat is the same, the valve is reversible. In other words, regardless of orientation of the valve with respect to upstream and downstream, the method of the present invention produces a gate valve with a triple seal.

A valve core removal tool (100) for an air-conditioning system (101) includes a main body (102). The main body (102) can include a system port (106), a first port (108), a second port (110), and a third port (112). The system port (106) can be coupled to the air-conditioning system (101). The first port (108) can be in fluid communication with the system port (106) via a first channel (122). The first port (108) can include a first valve (124) and a first coupling (126). The second port (110) can be in fluid communication with the system port (106) via the second channel (128). The second port (110) can include a second valve (130) and a second coupling (132). The third port (112) can be in fluid communication with the system port (106) via a third channel (134). The third port (112) can include a third valve (136), a third coupling (138), and a valve core assembly (120).

The utility model discloses a self-cleaning flat plate sliding plate valve convenient to install, and relates to the field of valves, the self-cleaning flat plate sliding plate valve convenient to install comprises a base, the top of the base is fixedly provided with a cleaning bin, the top of the cleaning bin is fixedly provided with a valve body, the top of the valve body is fixedly provided with a valve cover, the interior of the valve cover is rotatably connected with a rotating rod, and the top of the rotating rod is fixedly provided with a valve disc. According to the utility model, due to the arrangement of the cleaning brush and the scraper, when liquid circulation is needed, the port area of the valve plate is overlapped with the circulation area of the liquid, in the lifting adjustment process of the valve plate, the surface of the valve plate is in contact with the surface of the scraper, and impurities attached to the surface of the valve plate are cleaned through the scraper; and in the descending process, the rotating disc and the cleaning brush are driven to rotate through the change of the contact position of the rotating head and the valve plate, and the through opening area of the valve plate is cleaned through the matching effect of the rotating disc and the cleaning brush, so that the smoothness of liquid circulation is ensured.

An air sampler adapter (10) adapted to air-tightly contain an air sampling unit (11) remotely sampling air of a zone of interest via a pipe (21), comprising a main portion comprising a housing (15) and a base portion (16) comprising fixing means (161), wherein the fixing means (161) is configured to fix the air sampling unit (11) within said housing (15), a first end portion (17) comprising a sampled air inlet (14) and a first locking mechanism (12) adapted to be switched between an open position during sampling and an airtight closed position, and a second end portion (18) comprising an air outlet (141) and a second locking mechanism (13) adapted to be switched between an open position during sampling and an airtight closed position wherein the air sampler adapter is detachable from the pipe (21) connecting it to the zone of interest and in that the first and second locking mechanisms (12, 13) are adapted to be locked in airtight closed position for clean transportation when detached.

The invention relates to the technical field of electromagnetic valves, and discloses a low-turbulence electromagnetic valve with a conical flow guide valve element structure, which comprises a valve body, pilot valve components are mounted at the left end and the right end of the valve body, direct-acting iron core components are mounted at the opposite ends of the pilot valve components on the left side and the right side, and a main valve element is arranged in a main runner of the valve body. The valve body and the main valve element are jointly provided with a protection part, and the valve body is provided with a lubricating part corresponding to the main valve element. The low-turbulence electromagnetic valve provided with the conical flow guide valve element structure can effectively solve the problems that in the prior art, severe turbulence is generated when a medium flows through, pressure loss is increased, energy consumption is increased, pipeline vibration and cavitation phenomena are induced, and the stability of a high-purity fluid system is seriously restricted; the problems that abrasion is caused by frequent reciprocating motion of the valve element in the valve body, the fit clearance is gradually increased, inner leakage and response delay occur, even clamping stagnation and failure of the valve element are caused by excessive abrasion, and the mechanical service life is directly influenced are solved.

The utility model provides an electric stop valve which comprises a valve body component and a driving component, the valve body component comprises a valve seat and a valve core structure rotatably arranged in the valve seat, a valve port is arranged in the valve seat, the valve core structure opens and closes the valve port through rotation, the driving component comprises a driving shell, the driving shell is welded with the valve seat, and the driving component drives the valve core structure to rotate. According to the scheme, the valve element structure is arranged in the valve seat, the driving component drives the valve element structure to rotate, and therefore opening and closing of the valve port are achieved. According to the scheme, the valve seat in the valve body part and the driving shell in the driving part are directly connected in a welding mode, and compared with the mode that direct connection is conducted through threads or indirect connection is conducted through other shell structures, the direct welding mode is good in sealing performance, the leakage risk is reduced, implementation is easy, and the manufacturing cost is low.

The invention discloses a water purifier capable of adjusting concentrated water flow and a control method thereof.According to the water purifier capable of adjusting concentrated water flow, the opening area of a valve 94 in a concentrated water channel 92 is adjusted through the action of an adjustable concentrated water valve 9, meanwhile, the current of a booster pump 5 is synchronously adjusted, so that the water purifier is in a stable working state, and the water purifier is simple in structure, convenient to operate and low in cost. And the adjustable concentrated water valve 9 can adapt to water purifiers with different flows, so that the diversity of purchasing production materials by manufacturers is reduced.

A valve for a pyrolysis system for selectively opening and sealing a port of a retort chamber, having a valve body defining a discharge path and a closure member operable to open and close it. The closure member is displaceable relative to the valve body between an open and closed position along a displacement path transverse to the discharge path. A seal arrangement is between the valve body and the closure member, an actuation mechanism is operatively engaged to the closure member and configured to displace the closure member between the open and closed positions and to bias the closure member against the seal arrangement and / or the valve body in a direction along the discharge path. A gas conduit is configured for impinging pressurized air against a sealing area between the closure member and the valve body, with a gas outlet opened to the sealing area.

A break check valve can include one or more rotating members configured to rotate to alter the break check valve from an open position to a closed position upon dislocation of a pipe system fitting, the break check valve being altered from an open position to a closed position when acted upon by fluid within a piping system.