32 results about "Fluid regulation" patented technology

An assembly includes a fluid conditioning system including a cascade module and an active charge compensator integrated into the fluid conditioning system. The fluid conditioning system is transformable between a first mode and a second mode. In the first mode, the fluid conditioning system includes a first vapor compression loop and a second vapor compression loop. The first vapor compression loop and the second vapor compression loop are thermally coupled at the cascade module and the second vapor compression loop is fluidly separate from the first vapor compression loop. In the second mode, the fluid conditioning system includes a single vapor compression loop. The active charge compensator is operable to control a working fluid charge within the fluid conditioning system based on the mode of operation selected from the plurality of modes.

1. Name of the designed product: electric ball valve (90 - live). 2. Use of the designed product: used for controlling fluid in pipeline, regulating flow. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: perspective view 1.

A fluid conditioning system includes a compressor, a first heat exchanger, a second heat exchanger, and a first expansion device, and a second expansion device fluidly connected to form a closed loop through which a working fluid circulates. The first expansion device is associated with operation of the fluid conditioning system in a first mode and the second expansion device is associated with operation of the fluid conditioning system in a second mode. The second expansion device is a thermostatic expansion device. An accumulator is fluidly connected to the closed loop upstream from the compressor relative to a flow of the working fluid. A back pressure regulator is fluidly coupled to the first heat exchanger, the second heat exchanger, and the second expansion device.

The application relates to the technical field of fluid regulation, and discloses a flow adaptive compensation control method for a fluid conveying object, which comprises the following steps: obtaining a rated flow given value of a flow regulation loop, superimposing a carrier excitation signal of a preset frequency, outputting a combined excitation signal to a flow regulation execution unit, exciting a perturbation fluctuation signal carrying dynamic physical characteristics in a fluid pipeline, collecting a feedback flow signal in real time and extracting a same-frequency response component, calculating a response transmission ratio representing a physically effective bandwidth of the controlled pipeline, reconstructing a regulation gain of a flow adaptive control law according to the numerical fluctuation of the response transmission ratio, correcting the rated flow given value by using the regulation gain, and outputting a flow compensation instruction to the flow regulation execution unit. The application establishes a coupling mechanism of the control law and the pipeline physical constraint, effectively solves the regulation deviation caused by the viscosity drift of the fluid, and eliminates the pump body surge or dynamic pressure shock fluctuation induced by the regulation overshoot.

The invention relates to a cleaning device (100) for a vehicle (1000), the cleaning device having: - at least one cleaning nozzle (320), which is configured for loading a surface (AR) to be cleaned of at least one sensor (300) with a cleaning fluid (RF, DL, F), - a fluid regulating device (270), in particular a fluid valve (272) or a pump (276), which is configured for selectively providing the cleaning fluid (RF) to the cleaning nozzle (320), - a regulating actuator (140) for generating a cleaning movement (BR) of the cleaning nozzle (320). According to the invention, it is provided in the cleaning device (100) that: - the cleaning device (100) has a switching device (160) for controlling the regulating actuator (140), - it is possible to generate the cleaning movement (BR) independently of the fluid regulating device (270).

An emergency shut-off mechanism (204) for operatively connecting an emergency shut-off control element (216) of a fluid regulator (100) with a controller (208) for the emergency shut-off control element, the emergency shut-off mechanism comprising: a latch pin (256) adapted to be operatively connected to the emergency shut-off control element; a latch (260); and a lever (264) operably connected to the latch, the lever being adapted to be selectively engaged by the controller, where in response to the controller engaging the lever, the latch is movable from a first position in which the latch securely retains the latch pin to a second position in which the latch securely retains the latch pin, and in which the latch securely retains the latch pin. The emergency shut-off control element is movable between a second position in which the latch pin is released from the latch such that the emergency shut-off control element is held in a fully open position and a second position in which the latch pin is released from the latch, thereby allowing the emergency shut-off control element to move from the fully open position to a closed position.

The application discloses a compressed air storage structure and a pressure balance method, and belongs to the technical field of compressed air energy storage. The application comprises a primary support layer arranged on the surface of surrounding rock; a plurality of inverted-arch prefabricated lining units made of an engineering cement-based composite material, the cross section of the inverted-arch prefabricated lining units being in an arc shape protruding towards the inside of the chamber; a closed internal pressure balance cavity is formed between the outer wall of each inverted-arch prefabricated lining unit and the inner wall of the primary support layer; a monitoring unit of the pressure balance system is used for monitoring the air pressure inside the chamber and / or the pressure in the internal pressure balance cavity; a fluid regulating unit is in communication with the internal pressure balance cavity and is used for injecting or discharging fluid medium into the internal pressure balance cavity; a control unit is in signal connection with the monitoring unit and the fluid regulating unit, and is used for controlling the fluid injected or discharged by the fluid regulating unit according to the monitored pressure data, so as to adjust the pressure in the internal pressure balance cavity. The application effectively avoids the problem of concrete lining cracking and failure, and realizes the balance of the internal and external pressures of the chamber.

A pressure regulator that is used for various fluids is described. The regulator can be an integral part of a tank containing pressured fluid or a standalone device. The regulator uses an electroactive polymer (EAP) that can both increase and reduce its volume when exposed to a weak electrical pulse. The EAP through its change of volume controls the pressure of the fluid that is released from the fluid tank to a required pressure to be used for different applications. The control of the EAP is carried out by a pressure sensor and a controller. The controller uses the real time pressure data measured by the pressure sensor and adjusts the pressure of the fluid through the control of EAP.

The invention relates to a fluid regulator valve comprising an inlet port and an outlet port for connecting the valve to a fluid system, a regulating mechanism for opening and closing a valve opening within an inner valve chamber between the inlet port and the outlet port, wherein the regulating mechanism comprises a diaphragm provided in a diaphragm chamber, a valve rod and a control element. According to the invention, a pressure balancing conduit with two conduit portions is provided between the diaphragm chamber and an outlet port surface of the outlet port, wherein the pressure balancing conduit comprises a chamber opening and a port opening, the two openings opening into the diaphragm chamber and the outlet port, respectively. The invention also relates to a refrigeration system with a fluid regulator valve.

In a controller for a fluid regulation unit, a fluid regulation system with a plurality of fluid regulation units, and a method for preparing a fluid, each fluid regulation unit includes a unit controller configured to operate the fluid regulation unit. One unit controller of the plurality of unit controllers can function as a master control module and provide at least one operational setpoint for each of the unit controllers. The controller can include instructions stored therein that cause the controller to (i) operate as a unit controller that controls the fluid regulation unit and (ii) operate as a master controller. The method can include selecting a new unit controller to function as the master control module from the unit controllers of the plurality of fluid regulation units when the previous unit controller operating as the master control module for the fluid regulation system goes offline.

A seal assembly for use in a fluid regulation device, the seal assembly comprising: a seal sheath (60) having a channel (64) formed therein, where the channel has opposing sidewall portions, and the seal sheath is sized and configured for seating in the channel formed in the fluid regulation device; and a biasing member (70) sized and configured for placement in the channel and formed of at least a first layer and a second layer. The first layer is formed of a first metal material, and the second layer is formed of a second metal material different from the first metal material. The biasing member exerts a force on the sidewall portion of the channel when mounted in the sidewall portion of the channel. The first and second layers of the biasing member may be secured together to form a bimetal biasing member.

The application discloses a constant-temperature and pressure-free device and method for measuring fluid pH value, which comprises a support and a shell arranged above the support, the support is fixed above a ditch at a measuring point; the shell is provided with a fluid inlet and a fluid outlet at two ends respectively, the fluid inlet is located at the upper left side of the shell and is provided with an inlet fluid regulating valve, the fluid outlet is located at the lower right side of the shell and is provided with an outlet fluid regulating baffle; a filter sleeve is arranged at the lower end of the fluid inlet, a temperature control coil, a first speed reduction plate, an electrode protection sleeve and a second speed reduction plate are detachably arranged at the upper end of the shell and are spaced from the bottom surface of the shell by a set gap; a temperature regulating valve is arranged on the temperature control coil, and a pH electrode is arranged in the electrode protection sleeve. The application can realize the constant-temperature and pressure-free of the fluid pH measurement environment, reduce the abrasion of the pH electrode, prolong the service life, reduce the cleaning and maintenance cost, and is simple in structure, convenient to operate and suitable for different occasions.

1. Name of the product in this design: Double-headed diaphragm valve. 2. Application of this design: for fluid regulation and control in water, gas and chemical systems. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

An apparatus to maintain an environment over an anterior surface of a patient eye can include an enclosure sized and shaped to be seated about the patient eye to form a cavity within the enclosure. The enclosure can be configured to contain a fluid other than ambient air in contact with the patient eye. The apparatus can include a fluid regulator in communication with the enclosure, where the fluid regulator can be configured to regulate the composition of the fluid contained within the enclosure.

A fluid conditioning and / or treatment system is disclosed. A bell housing with a pressure relief element, for example a rupture disk, has an external shoulder to seat within a tubular. One or more filter chambers, with slots in the walls thereof, are releasably connected to the bell housing. A magnet mandrel is attached to the lowermost filter chamber. Fluids, for example drilling / completion fluids, are pumped downhole through the apparatus, and the filter chamber(s) and magnet remove solids and ferrous materials from the fluid stream. Threaded connections and connectors create a modular system, with the various elements easily changed out.

Provided in the present disclosure are a fluid regulating device and a mass flow controller. The device comprises a plurality of plate-like members with fixed relative positions, the plurality of plate-like members being stacked in the normal direction of the plate-like members. Each plate-like member is provided with a hollow portion, and the hollow portions of the plurality of plate-like members are correspondingly provided in the normal direction of the plate-like members, thereby forming a fluid channel for a fluid to pass through in the normal direction of the plate-like members. By using the characteristics of being flat and thin of single plate-like members, a hollow portion can be easily machined in each single plate-like member, and it is also easy to make a machined hollow portion comprise a larger number of through holes, such that the present solution reduces the manufacturing difficulty, can easily implement small size and large flow rate, can improve the precision, consistency and repeatability in the flow splitting effect of the fluid regulating device, and is applicable to mass flow controllers of various sizes.

The invention relates to the technical field of fluid regulation, and discloses a flow self-adaptive compensation control method for a fluid conveying object, which comprises the following steps: acquiring a rated flow given value of a flow regulation loop, superposing a carrier excitation signal with a preset frequency, and outputting a combined excitation signal to a flow regulation execution unit, a perturbation fluctuation signal carrying dynamic physical characteristics is excited in the fluid pipeline; feedback flow signals are collected in real time, same-frequency response components are extracted, and the response transmittance representing the physical effective bandwidth of the controlled pipeline is calculated; the method comprises the steps that a flow self-adaptive control law is obtained, the adjustment gain of the flow self-adaptive control law is reconstructed according to numerical fluctuation of response transmittance, a rated flow given value is corrected through the adjustment gain, and a flow compensation instruction is output to a flow adjustment execution unit. Adjustment deviation caused by fluid viscosity drift is effectively solved, and pump surge or dynamic pressure impact fluctuation caused by adjustment overshoot is eliminated.

The objective is to effectively solidify and recover the sublimated gaseous solid material. [Solution] A solid material recovery container 1 is provided for solidifying and recovering sublimated gaseous solid material, comprising a pipe 4 for introducing the sublimated gaseous solid material and a fluid regulating member 5 disposed above the pipe 4. Furthermore, a solid material recovery container 1 is provided for solidifying and recovering sublimated gaseous solid material, comprising a main body 2 and a lid member 3, wherein the main body 2 comprises an upper body 8 and a lower body 9.

This invention discloses a multifunctional integrated space physiological countermeasures and movement assistance suit and its control method. The spacesuit includes: a negative pressure fluid regulation system that applies controllable negative pressure to regulate fluid distribution; a biomimetic muscle system that applies controllable torque to simulate muscle exertion; an axial loading system that applies longitudinal compressive stress to simulate bone compression; and a control system that coordinates the operation of each system. In a preferred embodiment, the negative pressure system has multiple sealed zones with the negative pressure value increasing from the head side to the foot side and synchronizing with the cardiac cycle. The biomimetic muscle system can switch between assisted, resistive, and free modes. The axial loading system includes independent subsystems for the cervical spine and trunk-lower limbs. This invention is the first to integrate zoned stepped negative pressure, synchronized cardiac cycle regulation, biomimetic muscle coordination, and graded axial loading into a single wearable system, enabling all-weather simulation of Earth's gravity effects and addressing issues such as head-to-head fluid shift, muscle atrophy, bone loss, and disuse changes in the spine under microgravity.

The application provides a valve assembly and a water heater. The valve assembly comprises a housing, a first fluid inlet and a first fluid outlet arranged at two ends of the housing respectively, a driving valve core and a driven valve core arranged in the housing in sequence along a fluid flow direction from the first fluid inlet to the first fluid outlet. An end surface of the driven valve core towards the first fluid outlet is provided with a fluid regulating port. The driving valve core and the driven valve core are matched through a slope surface, so that the movement of the driving valve core drives the rotation of the driven valve core around a central axis of the housing, to adjust the overlapping area between the fluid regulating port and the first fluid outlet. Thus, the water flow is adjusted, and the part cracking and water supply interruption after the part cracking at the water outlet end are prevented.

The invention relates to an HVAC with a backpressure limiting expansion device, and specifically, a fluid conditioning system includes a compressor, a first heat exchanger, a second heat exchanger, and first and second expansion devices fluidly connected to form a closed loop through which a working fluid circulates. The first expansion device is associated with operation of the fluid regulation system in a first mode, and the second expansion device is associated with operation of the fluid regulation system in a second mode. And the second expansion device is a constant-temperature expansion device. The reservoir is fluidly connected to the closed loop upstream of the compressor with respect to the flow of the working fluid. A backpressure adjuster is fluidly coupled to the first heat exchanger, the second heat exchanger, and the second expansion device.

This invention relates to the field of fluid regulation technology, and particularly to a solenoid valve with a low probability of noise generation. The coil frame and the magnetic sleeve are connected by an insert; that is, during the injection molding of the coil frame, the magnetic sleeve acts as an insert, directly forming a single unit with the coil frame through the injection molding process. The bonding force between the magnetic sleeve and the coil frame is relatively high. Furthermore, one of the magnetic sleeve and the coil frame has at least one first concave structure, and the other has a first convex structure that mates with the first concave structure. The close fit and fixation of the first concave and first convex structures increases the contact area between the magnetic sleeve and the coil frame, further improving the bonding force between them. Due to the high bonding force between the magnetic sleeve and the coil frame, the magnetic sleeve is less prone to loosening under alternating alternating electromagnetic fields, thus reducing the probability of noise generation.

In one aspect, a system includes a blood treatment machine; a dialyzer configured to be coupled to the blood treatment machine, the dialyzer including a dialyzer housing defining a blood inlet and a blood outlet; a bundle of hollow fibers within an interior of the dialyzer housing; a pumping device drivable to force blood received from the blood inlet through lumens of the bundle of hollow fibers and out the blood outlet; a dialysate inlet port in fluid communication with a dialysate flow path that includes space in the interior of the dialyzer housing between the bundle of hollow fibers; and a dialysate outlet port in fluid communication with the dialysate flow path. The system further includes a fluid conditioning system configured to (i) prepare and supply fresh dialysate to the dialyzer via the dialysate inlet port, and (ii) receive spent dialysate from the dialyzer via the dialysate outlet port, recycle the spent dialysate, and supply the recycled dialysate to the dialyzer via the dialysate inlet port.

A body fluid regulating apparatus includes an inner tube disposed inside an outer tube with a gap between the inner and outer tubes. The inner tube and outer tubes are each formed with apertures that are open to the gap. A first suction lumen is located in the inner tube adapted to be coupled to a vacuum source for creating a negative pressure in the inner tube. A second suction lumen is adapted to be coupled to the vacuum source or to another vacuum source for creating a negative pressure in the apertures of the outer tube. A plug is disposed on a proximal portion the outer tube distant from the apertures of the inner and outer tubes.

The present invention pertains to a fluid regulator valve comprising a housing with an inlet port and an outlet port for connecting the valve to a fluid system via at least one inlet conduit and at least one outlet conduit. The valve further comprises a regulating mechanism for opening and closing a valve opening between the inlet port and the outlet port, wherein the regulating mechanism comprises a diaphragm provided in a diaphragm chamber, a valve rod and a control element, and wherein at least one spring is provided for acting on the valve rod and / or the control element, wherein the first spring is provided within the inlet port. According to the invention, the first spring abuts a cage and the control element via opposing ends of the first spring. The invention is also directed at a cage for a fluid regulator valve.

A body fluid regulating apparatus includes an inner tube disposed inside an outer tube with a gap between the inner and outer tubes. The inner tube and outer tubes are each formed with apertures that are open to the gap. A first suction lumen is located in the inner tube adapted to be coupled to a vacuum source for creating a negative pressure in the inner tube. A second suction lumen is adapted to be coupled to the vacuum source or to another vacuum source for creating a negative pressure in the apertures of the outer tube. A plug is disposed on a proximal portion the outer tube distant from the apertures of the inner and outer tubes.

This invention relates to an adaptive noise-isolating earplug, belonging to the technical field of personal hearing protection products. The earplug includes an ear canal sealing structure, a fluid transmission structure, a fluid control structure, and a removal structure. The ear canal sealing structure is located at the front end of the earplug and has an expandable fluid cavity inside. When fluid enters, the sealing structure expands and conforms to the inner wall of the ear canal to achieve a noise-isolating effect. Simultaneously, a ventilation channel is provided inside the ear canal sealing structure to maintain airflow within the ear canal. The fluid transmission structure connects the ear canal sealing structure and the fluid control structure, allowing fluid to flow inside the earplug. The fluid control structure uses a two-stage pressing mechanism to adjust the fluid volume, thus forming a first expansion state and a second expansion state. The first state is suitable for people with narrow ear canals, while the second state is suitable for adult ear canals. The removal structure is located at the rear end of the earplug for easy removal. This invention can adapt to people with different ear canal sizes and has good noise insulation and ventilation performance, making it suitable for prolonged wear.

The invention discloses a high-density composite fluid regulation and control method for a pumping and storage system, which comprises the following steps: based on basic data, establishing a system objective function and a constraint library containing machine-passing stability indexes and shear-settlement coupling stability window constraints; according to a unit and a pipe network parameter library, a time-varying three-control-quantity dynamic operation envelope is generated; the method comprises the following steps: receiving a sensor data flow, analyzing combined characteristics such as machine side current harmonics and main loop pressure pulsation, and performing non-intrusive online estimation to obtain a state vector containing parameters such as apparent viscosity and density; and reverse optimization is carried out under the constraint of the dynamic operation envelope, and a joint schedule containing the unit operation trajectory and the fluid physical property target trajectory at the same time is generated. According to the method, the fluid physical property is brought into the active regulation and control category, collaborative optimization of the high-density energy storage medium and the conversion equipment is achieved, and the economical efficiency and safety of system operation and the dynamic response capacity to power grid requirements are improved.