191 results about "Suction flow" patented technology

The utility model relates to the technical field of impeller flow passage self-adjusting gradually-changing flow direction centrifugal pumps, and discloses an impeller flow passage self-adjusting gradually-changing flow direction centrifugal pump body which comprises a bearing assembly, a main machine body, a speed measuring assembly, a driving assembly and a flow sucking assembly, the main machine body is installed above the bearing assembly, the speed measuring assembly is installed at the front end of the interior of the main machine body, and the driving assembly is installed at the front end of the interior of the main machine body. The driving assembly is installed at the rear end in the main machine body, and the flow suction assembly is installed in the middle in the main machine body. The speed measuring assembly is arranged, so that the running speed of the output end of the driving motor can be automatically adjusted according to actual working conditions according to the flow speed of water flow and matched work of the rear driving motor, and it is ensured that the pump always runs in a high-efficiency area; the driving assembly and the flow suction assembly are arranged, the suction condition of the pump can be effectively improved, and the critical cavitation allowance of the pump is reduced by optimizing the flow channel design and the inlet throat area, so that the cavitation phenomenon is reduced, and the cavitation resistance of the pump is improved.

The present invention relates to a household appliance (1) for cooking dishes extending along a height direction (Z-Z), a width direction (X-X), and a depth direction (Y-Y), and comprising: - a hob (2) provided with at least one suction opening (21) for cooking fumes and extending mainly along the width and depth direction (X-X, Y-Y), - a downdraft hood (3) having: - a box-like body (4) arranged below the hob (2) along the height direction (Z-Z) and defining a suction chamber (A) placed in fluid communication with the suction opening (21) of the hob (2); - a suction unit (5) arranged at least partially in the box-like body (4) so as to be in fluid communication with the suction chamber (A) and provided with a discharge duct (50) having a discharge mouth (51) arranged externally to the box-like body (4), said suction unit (5) further comprising an impeller (52) rotatable around a rotation axis (R-R) to generate a suction flow of cooking fumes (F) directed along a fluid-dynamic path (P) extending from the suction opening (21) of the hob (2) to the discharge mouth (51) of the discharge duct (50). Characteristic of the present invention is that the discharge duct (50) is rotatably mounted on the box-like body (4) around an orientation axis (O-O) so as to be able to vary the orientation of the discharge mouth (51), and has a volute (53) configured to convey the suction flow from the impeller (52) to the discharge mouth (51) regardless of the angular position of the discharge duct (50) around the orientation axis (O-O).

The present invention relates to a transfer apparatus (T) for contamination-free transport of containers (B), made of a thermoplastic material, in the region of an apparatus for treating containers (1), in particular a forming machine, for example a stretch forming machine or stretch blow moulding machine (4) for forming containers (B), wherein: the transfer apparatus (T) has a transport device (107) which is movably mounted on a base (112) and which has multiple container carriers (108) which are distributed around the circumference of the transport device in the circumferential direction and are designed to hold and convey the containers (B) along a transport path; the transfer apparatus (T) has a suction-extraction hood (160), which comprises an air discharge opening (162) for discharging air from the interior of the suction-extraction hood (160), an air intake opening (163), different from the air discharge opening (162), for taking in air from outside the suction-extraction hood (160), and a casing (164) which encloses the suction-extraction hood except for the air discharge opening (162) and air intake opening (163); the air intake opening (163) of the suction-extraction hood (160) is directed towards the transport device (107) and the air discharge opening is designed to be connected to an air discharge device (8), in order to extract air by suction from the interior (165) of the suction-extraction hood (161), in such a way that a suction flow (6) is generated there and detached foreign particles, dirt, germs and / or microorganisms are extracted towards the air discharge opening (162) by suction and do not reach the containers (B). The invention also relates to apparatuses and methods for forming containers.

The invention discloses an endoscope data processing method and system, and belongs to the field of endoscopes. The method comprises the steps that a basic pressure threshold a0 and a basic temperature threshold b0 of a user are set; collecting a pressure value a1 and a temperature value b1 through an endoscope; performing error correction on the pressure value a1 and the temperature value b1 through a compensation algorithm; according to the pressure value a1'and the temperature value b1 'after error correction, a basic pressure threshold value a0 and a basic temperature threshold value b0, a control strategy of the perfusion flow and the suction flow is generated; according to the control strategy, a PWM algorithm is adopted to generate control signals of perfusion driving and attraction driving; and the filter circuit and the isolation circuit are used for processing the control signal. In order to solve the problem that perfusion and suction flow control is not coordinated in the endoscopic surgery process in the prior art, four control strategies are generated through an error compensation algorithm and according to temperature and pressure parameters, and the stability of perfusion and suction flow control is improved.

The present invention relates to a hard surface cleaning apparatus, comprising: a suction assembly for forming a suction flow, the suction assembly comprising a suction unit and a motor driving the suction unit; a suction nozzle in fluid communication with the suction assembly for drawing a liquid-air mixture from the hard surface; the cleaning flow path is located between the suction nozzle and the suction assembly, and a separation part used for separating liquid from the sucked liquid-air mixture is arranged in the cleaning flow path; the liquid storage tank is used for containing the separated liquid, and the liquid storage tank is detachably installed on the separation component; wherein the liquid storage tank and the separation part can be integrally installed on the hard surface cleaning equipment and taken down from the hard surface cleaning equipment.

A vacuum cleaning system comprising a robotic unit (2) comprising a traction device, a docking interface and an articulated arm (82) defining an end effector (90), wherein the end effector comprises a suction tool, and wherein the robotic unit defines a suction flow path extending from the suction tool to the docking interface. The system further comprises a hand-held vacuum cleaner (6) configured to dock with the docking interface, the hand-held vacuum cleaner comprising a vacuum motor for suctioning air through the suction flow path when docked with the docking interface.

The embodiment of the utility model provides a smog collecting device for a paver and the paver. The smoke collecting device for the paver comprises a plurality of smoke collecting mechanisms and further comprises an adjusting device, the smoke collecting mechanisms are connected with pipelines, the lengths of the pipelines connected with the smoke collecting mechanisms are different, the smoke collecting mechanisms are connected with the adjusting device through the pipelines, the adjusting device is provided with a smoke exhaust port, and the smoke exhaust port is communicated with the smoke exhaust port. A smoke exhaust port of the adjusting device is communicated with a smoke suction fan, and the adjusting device is used for adjusting the flow of each pipeline. The flow of each pipeline is adjusted through the adjusting device, so that the smoke suction flow of the smoke suction fan is distributed, enough suction efficiency is provided for each smoke collecting mechanism, the problem that the smoke suction efficiency of part of the smoke collecting mechanisms is poor due to different lengths of the pipelines of the smoke collecting mechanisms is solved, and the health of operators of the paver is protected.

The invention relates to a suction appliance (10) having a suction-cleaner housing (11), in which a dust collection chamber (14) for collecting dust and a suction unit (15) for generating a suction flow are arranged, the suction appliance (10) having a suction inlet (12), the suction-cleaner housing (11) having a storage chamber (50), accessible from outside the suction-cleaner housing (11), for storing a suction hose (13) which can be or is connected to the suction inlet (12), and the storage chamber (50) having a base (44A) and a peripheral holding device (47H) projecting from the base (44A), which delimit the storage chamber (50) such that, when the suction hose (13) is wound to form a hose coil (13W) such that turns (13A, 13B, 13C) are formed, the suction hose (13) can be arranged in the storage chamber (50) with lateral support by the peripheral wall (47) in the storage chamber (50). The storage chamber (50) has a hose-coil passage arrangement (200, 250) having at least one hose-coil passage opening (201, 251A, 251B), the hose-coil passage opening (201, 251A, 251B) having, on a side remote from the base (44A) of the storage chamber (50), an insertion opening (203, 253) for the insertion of the suction hose (13) into the passage opening and having a base region (202, 252) opposite from the insertion opening (203, 253), and the hose-coil passage arrangement (200, 250) being designed to receive hose sections of at least one turn (13A, 13B, 13C) of the suction hose (13) such that the turn (13A, 13B, 13C) of the suction hose (13) can protrude from the storage chamber (50) in front of the suction-cleaner housing (11) when the suction hose (13) is arranged in the storage chamber (50).

The application discloses a control valve, a water treatment device and a control method thereof, and belongs to the technical field of water treatment. The control valve is provided with a first main valve position and a second valve position. When the first piston moves to the first main valve position and the second piston moves to the second valve position, the corresponding channels are opened, so that water from a water inlet flow channel is divided into three paths. The first path flows through a side flow channel, is treated, and then flows into a water outlet flow channel from a middle flow channel to maintain water supply. The second path enters a mixed water inlet from a mixed water flow channel and flows to a salt suction inlet. The third path enters a jet water flow channel from a siphon water flow channel, enters the salt suction inlet through a jet inlet, and the second path and the third path can be combined at the salt suction inlet. The regenerated liquid from the salt suction flow channel flows out of a salt tank to supplement the regenerated liquid. In this way, water can be injected into the salt tank while water treatment is performed, one special water injection valve position is reduced, the flux can reach a maximum value in a short time, and the waiting time for maximum water consumption is reduced.

The present invention provides an accessory for connection to a vacuum cleaner including a nozzle with bristles. The accessory defines a suction flow path extending from a suction inlet for receiving suction airflow to a suction outlet, and a cavity for removably receiving bristles via the suction outlet, the cavity being located within the suction flow path. The accessory includes a main body portion, a clamp mounted on the main body portion near the suction outlet, and at least one agitator, the clamp being movable about the suction flow path, the at least one agitator being mounted to the clamp and extending into the cavity for agitating the bristles received in the cavity during clamp movement. An assembly including the accessory and a vacuum cleaner including the assembly are also provided.

A single-shaft multistage centrifugal fluid machine (100) according to the present invention has: a first suction flow passage (7) that causes a fluid to flow into a first-stage centrifugal impeller (1) during rated flow rate operation; and a second suction flow passage (8) that causes a fluid which imparts prerotation to flow into the first-stage centrifugal impeller (1) during small flow rate operation, wherein the flow passage cross-sectional area (A1) at a merging location (7a) of the first suction flow passage (7) in a merging section (Cf) of the first suction flow passage (7) and the second suction flow passage (8) is smaller than the flow passage cross-sectional area (A2) at a merging location (8a) of the second suction flow passage (8).

The utility model relates to fire extinguishing equipment discloses fire extinguishing device in the energy storage prefabricated cabin, including fire extinguishing agent bottle group, full submergence nozzle, pack level pipeline, air extraction concentration analyzer and three -way reversing valve, the pack level pipeline is installed and inserts into the fire -finding pipe of battery box, the low -leakage high -sealed suction valve is installed to the end of fire -finding pipe, one end of air extraction concentration analyzer is connected with pack level pipeline and draws air through the low -leakage high -sealed suction valve on fire -finding pipe, three -way reversing valve is equipped with fire extinguishing flow channel, suction flow channel and piston rod, fire extinguishing flow channel at least one of fire extinguishing agent bottle group and pack level pipeline, full submergence nozzle is communicated, and suction flow channel is communicated with air extraction concentration analyzer through pack level pipeline. Air extraction concentration analyzer draws the gas in battery box directly through fire -finding pipe and carries out analysis, realizes the early monitoring to the fire hazard in battery box. Three -way reversing valve makes fire extinguishing agent pipeline and suction pipeline be same pipeline, simplifies pipeline arrangement.

The invention discloses a multi-joint cutter suction device for environment-friendly dredging of river sediment, which relates to the technical field of environmental protection, and comprises a suction acquisition assembly for forming a suction flow field through a suction head and introducing sludge slurry into a suction pipeline; the long-distance sludge discharging and conveying assembly is used for continuously conveying sludge slurry to a rear-end treatment end along a sludge discharging main pipeline after the sludge slurry is pressurized by a slurry pump, and the sludge discharging main pipeline comprises an anti-arch high-point section; the anti-arch accumulated gas isolating and pumping and discharging assembly is used for guiding the accumulated gas into the buffer space and pumping and discharging the buffer space to eliminate the accumulated gas of the anti-arch when the accumulated gas occurs at the high-point section of the anti-arch; according to the invention, an air plug isolation buffer branch, a liquid phase one-way back-filling branch and a pump outlet shunt-driven jet air exhaust branch are constructed between a suction side and a main conveying link, and a state machine method based on pressure-flow characteristics is matched, so that isolation buffer and self-energy air exhaust self-healing of an air plug are realized.

The invention provides an impurity removing and filtering device for alloy standard part grinding waste liquid, and relates to the technical field of grinding and filtering, the impurity removing and filtering device comprises a filtering mounting part, and a filtering and impurity removing part is mounted on the filtering mounting part; the filtering and impurity removing part is used for filtering metal chippings; a suction flow guide part is mounted on the filtering mounting part; the suction flow guide part is used for discharging waste liquid; a suction part is mounted on the filter mounting piece; a tail section detection piece is mounted on the suction part; the tail section detection piece is used for detecting tail section oil-containing waste liquid; by adopting the tail section detection piece, the residual liquid level can be automatically monitored in the impurity removal and suction process of the waste liquid, and the oil-containing waste liquid at the tail section can be automatically and independently discharged in a split-flow manner; the problems that according to an existing waste liquid filtering barrel impurity removal filtering device, waste liquid cannot be drained conveniently to promote side wall filtering, and automatic subsection control impurity removal cannot be conducted conveniently are solved.

A suction catheter system is described with a suction nozzle that can extend from a guide catheter of the like. The suction nozzle can be positioned by tracking the suction nozzle through a vessel while moving a proximal portion of the suction extension within the lumen of the guide catheter. A suction lumen extends from the proximal end of the guide catheter through at least part of the guide catheter central lumen and through the suction tip. Desirable suction flow can be established using the guide lumen to facilitate the suction. Also, a delivery catheter is described with an elastic tip that can track closely over a guidewire. The elastic tip of the delivery catheter can be expanded to provide for the delivery of medical devices past the tip.

The present invention relates to a system for pre-treating seawater by ultrafiltration, comprising ultrafiltration membranes (1) submerged in a tank (2) at atmospheric pressure which is provided with two inlets (21, 22), an upper and lower inlet, for a supply flow (Qa) of seawater propelled by a supply pump (3) and two outlets (23, 24), an upper and lower outlet, for an entrainment flow (Qar) of seawater circulating between the inlets (21, 22) and the outlets (23, 24). The system also comprises a suction pump (4) for a suction flow (Quf) of seawater ultrafiltrated in the ultrafiltration membranes (1). The supply flow (Qa) of seawater is greater than the suction flow (Quf) of ultrafiltrated water and the difference between said flow rates is equal to the entrainment flow (Qar) that forms a cleaning means for the tank (2).

The utility model belongs to the technical field of heat management, and discloses a heat management integrated module which can be compatible with all kinds of refrigerants, the charge quantity of the refrigerants is kept within 150 g, the heat management integrated module comprises a compressor, a first heat exchanger, a second heat exchanger and an air supply heat exchanger, and the compressor is provided with an air suction flow channel, an exhaust flow channel and an air supply flow channel. The air suction flow channel is provided with an air suction port, the exhaust flow channel is provided with an exhaust port, and the air supplement flow channel is provided with an air supplement port. The first heat exchanger is provided with an outlet part, the outlet part is provided with an outlet, and the air suction flow channel is connected with the outlet part to enable the air suction port to communicate with the outlet; the second heat exchanger is provided with an inlet part, the inlet part is provided with an inlet, and the exhaust runner is connected with the inlet part, so that the exhaust port is communicated with the inlet; and a second outlet part is arranged on the air supply heat exchanger, a second outlet is formed in the second outlet part, and the air supply flow channel is connected with the second outlet part, so that the air supply port is communicated with the second outlet, and the effects of being compatible with all refrigerants and canceling an external pipeline are achieved.

The application discloses a kind of fluid rectifying devices, and rectifying device is arranged in oil tank and forms multiple through flow channels in oil return filter element, oil suction filter element;Fluid rectifying device includes: oil return guide plate assembly, oil suction guide plate assembly, oil return flow channel, oil suction flow channel, middle rectifying channel and front rectifying channel;Oil return guide plate assembly is arranged outside oil return filter element, and oil suction guide plate assembly is arranged outside oil suction filter element;Through oil return flow channel is formed between oil return guide plate assembly;Through oil suction flow channel is formed between oil suction guide plate assembly;Oil return guide plate assembly and oil suction guide plate assembly have middle rectifying channel and front rectifying channel that communicate oil return flow channel and oil suction flow channel;The application forms S-shaped through flow cavity in oil tank by oil return flow channel, front rectifying channel, middle rectifying channel, oil suction flow channel, and the fluid medium of oil tank is buffered and filtered, reduce hydraulic system fluid medium pollution and slow impact force.

The present invention relates to an electric oil pump and, more specifically, to an electric oil pump and an electric device which can measure the temperature of oil by including a temperature sensor unit on a suction flow path connecting an oil suction port and a pump chamber provided in a housing, can implement stable support with respect to a shaft, use winding coils connected for each phase winding coil in a three-phase motor, and minimize a connection route between a controller and a final end of the winding coils to simplify the structure and contribute to cost reduction. The present invention provides an electric oil pump comprising: an oil suction port provided in a housing; a pump chamber provided in the housing; a suction flow path connecting the pump chamber and the suction port; a temperature sensor unit disposed on the suction port or the suction flow path to measure the temperature of oil before flowing into the pump chamber; and a control module including a double journal bearing, a motor connected to a shaft connected to the pump, and a substrate, wherein the motor comprises a rotor and a stator, the stator includes three-phase windings of U-phase, V-phase, and W-phase, the windings of each phase are provided in plurality, the windings of the same phase are connected in series to each other, and a final line of each winding connected in series is connected to the control module, one for each phase.

The invention provides a compact pipeline pump which comprises an inlet section, a machine shell assembly, an outlet section and a rotor assembly arranged in the machine shell assembly, the inlet section, the machine shell assembly and the outlet section are coaxially and sequentially connected, and the inlet section and the outlet section are located at the two opposite ends of the axial direction of the machine shell assembly respectively; the rotor assembly comprises a rotary drum, an impeller fixedly connected with the rotary drum and a rotor iron core, and the rotary drum synchronously rotates along with the rotor iron core; wherein the rotary drum is of a hollow structure, and the hollow part of the rotary drum and the inlet of the impeller jointly form a medium suction flow channel.

The invention discloses a sewage suction tank with sewage filtering and flowback functions, which structurally comprises a tank body and is characterized in that an upper filter plate is arranged on the upper side in the tank body, a rear cover is arranged at the tail part of the tank body, and a sewage suction pipe and an anti-overflow check valve are arranged at the top of the tank body; a lower filter plate is hinged to the lower face of the upper filter plate, one end of the dirt suction pipe is connected with a dirt suction hose, the other end of the dirt suction pipe is connected with a dirt suction flow guide pipe, a flow-back pipe is arranged on the upper side of the dirt suction flow guide pipe, a blanking cap is arranged at the tail discharging end, and a non-return cover and a limiting bolt are arranged at the lower end of the flow-back pipe. The upper filter plate, the lower filter plate and the rear cover of the tank body form a stock bin V1, and the upper filter plate, the lower filter plate and the front seal head of the tank body form a water accumulation bin V2. After a sewage suction tank body is transformed, sewage is sucked in through a sewage suction pipe, flows through a sewage suction flow guide pipe and enters a stock bin V1, sewage is filtered through a lower filter plate and then enters a water accumulation bin V2, residues and foreign matter are filtered and then concentrated in the stock bin V1, and after the tank body is full of the sewage, a four-way reversing valve is operated, so that a vacuum generation system inflates and pressurizes the tank body; sewage enters the flow-back pipe under the action of gas pressure, flows through the sewage suction flow guide pipe and is discharged through the sewage suction pipe. The transformation method can be implemented on most existing vacuum sewage suction trucks, and has the characteristics of high operability, high practicability and capability of effectively reducing the municipal sewer dredging and cleaning working cost after transformation.

The invention relates to the technical field of medical instruments, in particular to a cavity pressure and temperature cooperative control method, a cavity pressure and temperature cooperative control system and perfusion equipment. The control module increases the suction flow of the suction device according to the temperature error so as to reduce the actual temperature in the operation cavity; and the control module increases the perfusion flow of the perfusion device based on the pressure change amount in the operation cavity caused by the increase of the suction flow so as to compensate the pressure in the operation cavity.

The present invention relates to a suction nozzle assembly for a hard surface cleaning device for scraping and drawing liquid from a hard surface, the hard surface cleaning device comprising a suction flow path for connection to the suction nozzle assembly, the suction nozzle assembly comprising: a lower housing comprising a receptacle defining an internal suction channel, the insertion part can be detachably connected to the hard surface cleaning equipment so as to be in fluid communication with the suction flow path; the upper shell body is detachably connected to the lower shell body; the upper scraping part is used for executing scraping operation; the middle retaining part is located between the lower shell and the upper shell, the middle retaining part and the lower shell form a suction space communicated with fluid of the internal suction channel, and the upper scraping part is located between the middle retaining part and the upper shell. The invention also relates to a hard surface cleaning device comprising such a nozzle assembly.

The invention relates to a suction device (10) with a suction housing (11) in which a dust collection chamber (14) for collecting dust and a suction unit (15) for generating a suction flow are arranged, wherein the suction device (10) has a suction inlet (12), wherein the suction housing (11) has a storage compartment (50) accessible from an outside of the suction housing (11) for storing a suction hose (13) connectable to or attached to the suction inlet (12), wherein the storage compartment (50) has a base (44A) and a circumferential retaining device (47H) projecting from the base (44A) that delimits the storage compartment (50), so that when the suction hose (13) is wound into a hose coil (13W) forming turns (13A, 13B, 13C), it is laterally held in place by the circumferential wall (47) in the storage compartment (50). can be arranged supported in the storage room (50).The storage compartment (50) has a hose winding passage arrangement (200, 250) with at least one hose winding passage opening (201, 251A, 251B), wherein the hose winding passage opening (201, 251A, 251B) has, on a side facing away from the bottom (44A) of the storage compartment (50), an insertion opening (203, 253) for inserting the suction hose (13) into the passage opening and a bottom area (202, 252) opposite the insertion opening (203, 253), wherein the hose winding passage arrangement (200, 250) is designed to receive hose sections of at least one turn (13A, 13B, 13C) of the suction hose (13), such that the turn (13A, 13B, 13C) of the The suction hose (13) can protrude from the storage compartment (50) in front of the vacuum cleaner housing (11) when the suction hose (13) is arranged in the storage compartment (50).

This invention discloses a thermal energy storage system for pumping large-flow-rate high-temperature molten salt, relating to the fields of solar thermal power generation, nuclear power, and thermal power energy storage. It includes a main molten salt storage tank, a stabilizing tank, a horizontal storage tank, a main circulating molten salt pump, and a salt-reducing temperature-regulating pump. The main molten salt storage tank is connected to the stabilizing tank via multiple pipelines. The outlet of the stabilizing tank is directly connected to the suction inlet of the main circulating molten salt pump via a pipeline equipped with an isolation valve and an air cooler, stabilizing the pump suction flow and enabling large-flow-rate molten salt pumping. The arrangement of one or more pipelines between the main molten salt storage tank and the stabilizing tank reduces the height of unusable molten salt in the main molten salt storage tank, saving costs. An air cooler is installed after the stabilizing tank to ensure safe isolation during isolation valve maintenance. This invention addresses the need for pumping large-flow-rate high-temperature molten salt in solar thermal power plants or nuclear power plants of 350MW or above, while also adapting to the requirements of long-term, uninterrupted low-speed pump operation.

The application relates to the technical field of volume pumps, in particular to an improved reciprocating pump which comprises a power unit and a hydraulic unit; the improved reciprocating pump further comprises a compensation unit which is arranged on the hydraulic unit and is used for compensating the liquid suction effect of a far-end cylinder, the compensation unit comprises a compensation frame arranged below the hydraulic unit, a plurality of compensation cylinders are mounted on the upper end of the compensation frame and are in communication, a pushing part is arranged in the compensation cylinder, and a feeding head is mounted on the end of the compensation frame. The compensation unit adopted by the application cooperates with the driving unit, can effectively fill the viscous medium into the plurality of cylinders of the hydraulic unit, avoids the phenomena of multiple-cylinder liquid stealing, suction flow deviation and far-end cylinder cavitation during the use of the reciprocating pump, avoids the damage of core components such as pump cylinders and piston rods, ensures the uniformity of the liquid suction of the reciprocating pump, and greatly prolongs the service life of the core vulnerable components.

The invention relates to the technical field of displacement pumps, in particular to an improved reciprocating pump which comprises a power unit and a hydraulic unit. The improved reciprocating pump further comprises a compensation unit, the compensation unit is arranged on the hydraulic unit and used for compensating the liquid suction effect of the far-end cylinder, the compensation unit comprises a compensation frame arranged below the hydraulic unit, the upper end of the compensation frame is provided with and communicates with a plurality of compensation cylinders, and pushing parts are arranged in the compensation cylinders. And a feeding head is mounted and communicated with the end part of the compensation frame. According to the reciprocating pump, the adopted compensation unit is matched with the driving unit, the multiple cylinders of the hydraulic unit can be effectively and actively filled with viscous media, the phenomena of multi-cylinder liquid grabbing, suction bias flow and far-end cylinder cavitation during use of the reciprocating pump are avoided, damage to core components such as the pump cylinder and a piston rod is avoided, the liquid suction uniformity of the reciprocating pump is guaranteed, and the service life of the reciprocating pump is prolonged. And the service life of a core damageable part is greatly prolonged.

Device (1) for contamination analysis of a component (2), comprising - a suction device (4) for generating a suction flow (S), - a receiving device (5) fluidically coupled to a suction side (4.1) of the suction device (4) with a suction opening (5.1) for drawing particles (P1 to Pn) from the component (2), - a filter device (3) arranged between the suction side (4.1) and the receiving device (5), comprising a filter housing (3.1) with - a first housing section (3.1.1) fluidically coupled to the suction side (4.1), - a second housing section (3.1.2) fluidically coupled to the receiving device (5), the inner contour of which is designed as a hollow cylinder with a constant inner diameter (d), wherein the inner diameter (d) is smaller than a length (l) of the hollow cylinder, and - a filter section (3.1.4) arranged between the housing sections (3.1.1, 3.1.2), in which a disc-shaped filter (3.2) is arranged and / or can be arranged immediately adjacent to the hollow cylinder, the surface normal vector of which runs in the direction of the suction flow (S), and - an evaluation unit (6) which is configured to automatically perform a photo-optical analysis of the filter (3.2) with regard to the quantity and / or type and / or size and / or shape of particles (P1 to Pn) drawn in via the intake opening (5.1) and deposited on a surface of the filter (3.2), characterized in that the first housing section (3.1.1) has a funnel-shaped inner contour which, starting from a coupling point with the second housing section (3.1.2) in the direction of the suction device (4), tapers from an inner diameter corresponding to the inner diameter (d) of the hollow cylinder to a smaller inner diameter.

This application provides a water softener, including a brine tank, a water softening device, a control valve assembly, and a weight detection component electrically connected to the control valve assembly. The brine tank has a storage chamber and a brine tank inlet communicating with the storage chamber. The water softening device has a water softening chamber for softening the water. The control valve assembly has a water supply port and a switching flow path. The control valve assembly controls the sequential connection of the water supply port, the switching flow path, the water softening chamber, and the brine tank inlet to form a water replenishment flow path, or controls the sequential connection of the brine tank inlet, the switching flow path, and the water softening chamber to form a brine suction flow path. The weight detection component detects the real-time weight of the brine tank. The control valve assembly controls the on / off state of the water replenishment flow path or the brine suction flow path based on a comparison between the real-time weight and a preset weight to ensure consistent water replenishment and avoid increased brine consumption or poor softening effect.

This invention provides a ship drag reduction optimization method based on the EEXI standard, belonging to the field of ship energy efficiency optimization technology. The method involves arranging multiple independently driven adaptive suction drag reduction devices in an array on the ship's hull. The impellers are driven by the impact of the ship's navigating water flow to generate rotational power, requiring no external energy source. A centrifugal governor automatically adjusts the throttle valve opening according to the ship's speed, adaptively matching the suction flow rate with the speed, maintaining optimal boundary layer suction intensity across the entire speed range, effectively thinning the boundary layer and reducing frictional resistance. The device adopts a purely mechanical structure, equipped with a friction-type overload clutch, and features anti-clogging, anti-marine organism attachment, and triple sealing functions. It is modularly installed for convenience, has a short retrofit cycle, low cost, and high reliability. This invention can significantly reduce ship fuel consumption and carbon emissions, achieving a net energy saving rate of 10%–15%, effectively improving the EEXI compliance rate of older ships, and is suitable for energy-saving retrofits and new construction designs of various displacement-type ships.