59 results about "Decompression chamber" patented technology

A device for generating carbon dioxide snow has a decompression chamber into which a decompression nozzle opens for decompressing supplied liquid carbon dioxide. According to the invention, the decompression nozzle is integrated into a decompression fitting designed as a two-fluid nozzle, into which, in addition to a supply line for liquid carbon dioxide terminating at the decompression nozzle, a supply line for a liquid or gaseous cleaning medium opens. During a break in operation of the device, when no carbon dioxide snow is being generated, the cleaning medium serves to maintain overpressure in the decompression chamber and / or to remove contaminants adhering to an inner wall of the decompression chamber.

The present invention discloses a decompression chamber massage chair, characterized in that it includes a seat and a backrest connected to the seat, the backrest including a base, side panels connected to the left and right sides of the base, a backrest fabric connected between the two side panels, a plurality of mounting holes formed on the upper portion of the base, limit rings installed in the mounting holes, a horizontal plate provided below the limit rings, vertical plates connected to the left and right sides of the horizontal plates, the upper ends of the vertical plates connected to the bottom surfaces of the limit rings, a guide rod connected to the upper portion of the horizontal plate, a support rod passing through the limit rings, the upper end of the guide rod extending into the interior of the support rod, a spring provided on the outer sleeve of the guide rod, the upper end of the spring connected to the bottom surface of the support rod, the lower end of the spring connected to the upper surface of the horizontal plate, a drive motor installed inside the upper side of the support rod, a motor shaft provided on the drive motor, and a massage head connected to the upper end of the motor shaft. In the present invention, the massage head in the backrest automatically adjusts its position according to the back contours, thereby conforming to the back contours and achieving effective massage.

Provided is a liquid ejection head in which P1×V4>P1×(V1−V2)+P3×V3+P4×V4 is satisfied, where P1 is a pressure in a bubble accumulation chamber, V1 is an inner volume of the bubble accumulation chamber, V2 is a target bubble volume after bubble removal from the bubble accumulation chamber, P3 is an atmospheric pressure, V3 is a volume of a gas flowing into a depressurization chamber from an atmosphere during a bubble removal operation, P4 is a pressure in the depressurization chamber before the bubble removal operation, and V4 is an inner volume of the depressurization chamber.

The invention belongs to the cross technical field of deep well mine filling and energy recovery, and particularly relates to a deep well filling pressure reduction and graded pressure energy recovery power generation system, an energy efficiency monitoring method and an operation control method. Comprising an earth surface filling preparation station, a filling vertical pipe, a decompression chamber, a first-stage coupling rotational flow driving device, a second-stage coupling rotational flow driving device, a pressure stabilizing buffer tank and a tail end filling working face. The earth surface filling preparation station conveys slurry into the pressure reduction chamber through the filling vertical pipe, the slurry is conveyed to the first-stage coupling rotational flow driving device through pressure reduction in the pressure reduction chamber, and the first-stage coupling rotational flow driving device drives the first-stage permanent magnet generator to generate electricity. The slurry is conveyed to a secondary coupling rotational flow driving device through a transition pipe after coming out of the primary coupling rotational flow driving device, and the secondary coupling rotational flow driving device drives a secondary permanent magnet generator to generate electricity; the slurry flows out of the secondary coupling rotational flow device and then enters the pressure stabilizing buffer tank, and then is conveyed to a tail end filling working face through the pressure stabilizing buffer tank.

The present application provides a food vacuum cooling method and a food vacuum cooling device capable of further shortening the operation time. In the food vacuum cooling method and the food vacuum cooling device of the present application, a vacuum chamber is composed of a positive chamber, a decompression chamber connected to the positive chamber and including at least an outer chamber and an inner chamber, and a re-compression chamber including one or more chambers. The outer chamber of the decompression chamber is prepared to be decompressed from the atmospheric pressure to a specified pressure, and the inner chamber of the decompression chamber is prepared to be decompressed from the specified pressure decompressed in the outer chamber of the decompression chamber to a pressure required for cooling. The food moved into the positive chamber through the decompression chamber is cooled for a specified time in the positive chamber maintaining the vacuum degree required for cooling, and then moved out through the re-compression chamber. The opening and closing of the doors in each chamber, the decompression of the chamber requiring decompression, the pressure increase of the chamber requiring pressure increase, and the food conveying are performed so that the operation in each chamber is completed within the allowable processing time calculated in advance based on the specified cooling time.

1. The name of the design product: intelligent body and mind pressure relief cabin. 2. The use of the design product: equipment for people to massage, rest, relieve mental stress and physical load. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

The invention belongs to the technical field of pipeline cleaning, and particularly relates to a device and method for cleaning a fluid transportation pipeline through natural vibration pulse jet flow, and the device comprises a supply system, a pressurization system and a cleaning system; the supply system comprises a decompression chamber used for transporting the cleaning system, the pressurization system comprises a fluid conveying pipe and a pressurization pump connected with the fluid conveying pipe, a pressure sensor is arranged on an outlet pipeline of the pressurization pump, and an outlet pipeline of the pressurization pump is communicated with the cleaning system. The invention relates to a novel method and device for completing online cleaning under the condition of not interrupting transportation by combining a jet flow technology of natural vibration pulse and cavitation effect so as to solve the key technical bottleneck problems of discontinuous operation, incomplete cleaning, poor working condition adaptability and the like in the prior art.

A particle removed from a substrate is suppressed from adhering to the substrate again. A substrate cleaning apparatus includes a substrate holder configured to hold the substrate; a gas nozzle configured to jet a cleaning gas to the substrate on the substrate holder; and a nozzle cover provided to surround the gas nozzle. The cleaning gas is jetted to a decompression chamber of the nozzle cover from the gas nozzle, and a gas cluster configured to remove the particle on the substrate in the decompression chamber is generated. A gas for a gas curtain is jetted from a holder support of the substrate holder toward the nozzle cover, and the gas curtain is formed between the nozzle cover and the holder support.

The present invention relates to an electrolyte supply nozzle device for a metal foil forming apparatus, improved to enable precise and stable supply of an electrolyte in a flat form. The present invention provides an electrolyte supply nozzle device for a metal foil forming apparatus, comprising: at least one supply port provided to supply at high pressure an electrolyte containing dissolved metal ions to a gap formed at the underside of a drum roll of the metal foil forming apparatus; a decompression chamber connected to an upper end portion of the supply port to decompress and allow flow of the electrolyte supplied through the supply port; and a nozzle tip provided to communicate with an upper portion of the decompression chamber to discharge and supply the electrolyte from the decompression chamber to the gap, wherein a cavity and a discharge lip are continuously formed in the longitudinal direction of the nozzle tip by the nozzle tip and the decompression chamber to discharge and supply the electrolyte to the gap in a flat form, and a plurality of orifices communicating with the cavity are continuously formed at a lower portion of the cavity.

The invention relates to the field of magnesium hydride production, in particular to a continuous magnesium hydride production system and method. Through optimized process design, a tubular main reaction kettle controls constant temperature and pressure, a double-helix mechanism is arranged in the tubular main reaction kettle to stir and push powder to move directionally, hydrogen and magnesium powder mixed with a catalyst are injected from a top decompression chamber at the inlet end of the reaction kettle, and synthesized magnesium hydride powder is discharged from an outlet at the tail end of the reaction kettle and is output. According to the system for continuously producing magnesium hydride, solid magnesium hydride can be continuously and stably synthesized, the hydrogen content of magnesium hydride can reach 7.6 wt.% at most, compared with a magnesium vapor-hydrogen reaction, the magnesium hydride production method provided by the invention is lower in reaction temperature and controllable in pressure, the conversion efficiency can reach 99.5% at most, and the production cost is low. And industrial large-scale synthesis of magnesium hydride is realized.

The present invention relates to the technical field of battery fire water tanks, and in particular to a battery storage fire protection water tank, comprising a water tank body and a battery body. The lower end of the battery body is provided with a lifting guide rail located in the middle of the water tank body. A sealing cover is provided on the top of the water tank body. A suspended bracket is provided on the outside of the water tank body. An inner box is provided inside the water tank body. A convex cover is provided on the top of the inner box. A decompression chamber is provided between the water tank body and the inner box. A top cover is provided on the top of the battery body to prevent bubbles and liquid from overflowing in the water tank. The decompression chamber is connected to the exterior of the water tank body. An activated carbon filling layer is provided on the lower side of the decompression chamber, and a filter plate is provided on the lower side of the activated carbon filling layer. This battery storage fire water tank can prevent bubbles and liquid from overflowing, increase the safety of gas discharge, and improve the protective effect of the fire water tank.

The beverage dispensing head (8) comprises a beverage supply conduit (11); a distribution chamber (12) fluidly connected to the beverage supply conduit (11) and equipped with two calibrated outlet orifices; two decompression chambers (14) which are fluidly connected to the distribution chamber (12) respectively via the two calibrated outlet orifices, each of the decompression chambers (14) being equipped with a discharge orifice; and two beverage dispensing nozzles (9) which are fluidly connected respectively to the two discharge orifices and through which a prepared beverage is able to flow into a container positioned below the beverage dispensing head (8). Figure 4

An ink jet recording method of recording an image through use of an ink jet recording apparatus includes a recording head including: an ejection orifice configured to eject an aqueous ink; a pressure chamber in communication with the ejection orifice; an ejection element, which is arranged in the pressure chamber, and which is configured to generate energy for ejecting the aqueous ink from the ejection orifice; a liquid retention chamber configured to supply the aqueous ink to the pressure chamber, a decompression chamber, which is arranged adjacent to an upper side in a vertical direction of the liquid retention chamber, and which is configured to decompress an inside of the liquid retention chamber; and a gas permeable membrane arranged at a boundary between the liquid retention chamber and the decompression chamber. The ink jet recording method includes applying an aqueous ink ejected from the ejection orifice to a recording medium.

The present application provides a protective sheet arrangement device and a protective sheet arrangement method for arranging a protective sheet on a substrate while controlling the adhesion of the protective sheet to the substrate. The protective sheet arrangement method arranges a protective sheet on the front surface of a substrate, and includes the following steps: a substrate placement step of placing the substrate on a support table of a decompression chamber that is separable into an upper housing and a lower housing and has the support table; a space separation step of separating a space in the decompression chamber into a first chamber and a second chamber by placing the protective sheet so as to face the front surface of the substrate; a decompression step of decompressing the first chamber to a predetermined air pressure and decompressing the second chamber; a protective sheet adhesion step of opening the decompressed second chamber to the atmosphere, thereby causing the protective sheet to adhere to the substrate with a predetermined strength; and a substrate removal step of opening the decompressed first chamber to the atmosphere, separating the lower housing from the upper housing, and removing the substrate with the protective sheet adhered thereto from the decompression chamber.

A gas introducing device is provided that can alleviate a sudden increase in pressure in a decompression chamber when the chamber is opened to the atmosphere, while simplifying the structure and control. [Solution] A gas introduction device (10) is attached to the atmosphere intake side of an atmosphere release valve (6) that opens a decompression chamber (2) that is decompressed to a pressure lower than atmospheric pressure to the atmosphere, and is equipped with a valve body (18) that opens and closes the atmosphere intake side of the atmosphere release valve, a small amount of gas introduction section (14) that has an opening area smaller than the opening area of ​​the valve body when it is in the fully open position and is able to introduce gas regardless of the position of the valve body, and a biasing mechanism (20) that biases the valve body, which is in a closed position due to the negative pressure in the decompression chamber when the atmosphere release valve is opened, towards the fully open position.

The purpose of the present invention is to provide a liquid ejection head and a liquid ejection apparatus capable of suppressing ejection failure and ink leakage. To this end, the amount of gas permeation through a region in which the area of a breathable film of polypropylene (PP) is 0.36 cm2 is set to 0.01 cc / day or more when the pressure difference between the bubble accumulation chamber and the decompression chamber is set to 50 kPa.

A diving work support system includes: a mother ship; a deck decompression chamber mounted on the mother ship; and an underwater decompression chamber that is coupleable to the deck decompression chamber and is made to move down from the mother ship to a target depth. The diving work support system further includes a nitrogen producer that is mounted on the mother ship, separates nitrogen from air, and supplies the nitrogen to the deck decompression chamber. The nitrogen producer may supply the nitrogen to the underwater decompression chamber separated from the deck decompression chamber.

A cavitator utilizes hydrodynamic effects to create a compression-decompression effect on a fluid or on a mixture of fluids, resulting in cavitation effects and the generation of ultrafine bubbles. The cavitator comprises a fluid inlet, a fluid outlet, and a compression-decompression chamber situated between the inlet and outlet. The fluid is forced through the chamber under controlled pressure, causing hydrodynamic effects to generate the compression-decompression effect and ultrafine bubbles. This results in cavitation effects, which can be utilized for various applications, such as cleaning, mixing, or milling. The cavitator is designed to be compact, efficient, easy to use, requiring minimal maintenance, and offers a cost-effective solution for generating cavitation effects.

To provide a liquid discharge head that can be improved in stability in use.SOLUTION: A liquid discharge head comprises a discharge port for discharging liquid, a pressure chamber provided with an energy generating element that generates energy for making the discharge port discharge liquid, and a bubble removing unit for removing bubbles from liquid that is supplied to the pressure chamber. The bubble removing unit has: a liquid storage chamber, fluid-communicated with one end of the pressure chamber, which can store liquid; a gas permeation film through which gas can be permeated; a decompression chamber arranged adjacent to the liquid storage chamber through the gas permeation film; and deformation suppressing means that suppresses the gas permeation film from deforming, by contacting the gas permeation film.SELECTED DRAWING: Figure 27

The utility model relates to the technical field of detection devices, in particular to a microwave digestion device for measuring organic selenium in animals by an atomic fluorescence method, which comprises a box body, the box body comprises a depressurization chamber and a digestion chamber, the depressurization chamber is separated from the digestion chamber through a partition plate, and a vacuum negative pressure pump is mounted in the depressurization chamber. A controller is arranged in the depressurization chamber, a touch screen is arranged at the front end of the depressurization chamber, the controller is in two-way signal connection with the touch screen, a microwave source is arranged at the top of the digestion chamber, a test tube tray is mounted at the bottom of the digestion chamber, and a chamber door is rotatably mounted at the front end of the digestion chamber; a door groove clamped with the chamber door is formed in the front end of the digestion chamber, a sealing ring groove is formed in the front end surface of the door groove, and a sealing ring is clamped in the sealing ring groove. According to the device disclosed by the utility model, the boiling point of a substance is reduced through uniform heating and a negative pressure environment provided by the microwave source, so that the digestion process can be carried out at a lower temperature, and the digestion efficiency of an animal sample is improved when organic selenium in an animal is measured by an atomic fluorescence method.

The invention relates to a manufacturing method of a valve body shell of a gas valve. A middle gas channel is manufactured in a die-casting core-pulling mode, a gas inlet is communicated with the middle gas channel, a hole is drilled in a pressure reduction cabin to the middle gas channel, and a gas outlet is communicated with the pressure reduction cabin through a switch piece mounting part. According to the gas valve manufactured through the method, the defects that in the prior art, a gas supply tank is exposed due to the fact that a gas valve body is too thick, large in size and incapable of being matched with a small outdoor furnace are overcome.

The present invention discloses a buffer structure for alleviating micro-pressure waves at the entrance of a high-speed railway tunnel. The structure comprises a buffer structure body, the outer end face of which is a beveled surface, and an arched plate disposed between the buffer structure body and the tunnel clearance. The axis of the arched plate is arranged to coincide with the axis of the tunnel, and the outer end face of the arched plate is arranged coplanar with the outer end face of the buffer structure body. The arched plate and the buffer structure body are aligned with the outer end face of the tunnel to form a decompression zone with an open outer end and a closed inner end. The arched plate is provided with a plurality of through holes that communicate with the decompression chamber. The present invention can reduce the amount of compression waves generated when airflow enters the tunnel; it can dissipate the energy of the compression waves, and more efficiently alleviate micro-pressure waves at the tunnel exit.

The utility model discloses a two-stage pressure reducing valve capable of preventing a sealing ring from falling off. The two-stage pressure reducing valve comprises a valve body, a valve cover, a first-stage pressure reducing executing mechanism and a second-stage pressure reducing executing mechanism, the valve body is provided with an air inlet, a first-stage pressure reduction cavity, a middle channel, a second-stage pressure reduction cavity and an air outlet, the air inlet is formed in one end of the valve body, the air outlet is formed in the other end of the valve body, the first-stage pressure reduction cavity, the middle channel and the second-stage pressure reduction cavity are located between the air inlet and the air outlet, and the middle channel is located between the first-stage pressure reduction cavity and the second-stage pressure reduction cavity. The first-stage pressure reducing cavity is positioned between the air inlet hole and the middle channel; the first-stage pressure reducing cavity and the second-stage pressure reducing cavity can be communicated with the outside, a valve cover is detachably connected to the valve body, and the valve cover is used for isolating the first-stage pressure reducing cavity and the second-stage pressure reducing cavity from the outside; the first-stage pressure reduction executing mechanism is installed at the first-stage pressure reduction cavity. According to the two-stage pressure reducing valve capable of preventing the sealing ring from falling off, the problem that in the prior art, the air leakage risk exists due to the fact that connection between the first-stage pressure reducing chamber and the second-stage pressure reducing chamber is achieved through inserting connection is solved.

The utility model discloses a rotary decompression indoor fire hydrant which comprises a fire hydrant valve body, an adjusting seat is installed on the upper side of the fire hydrant valve body, a flow channel is formed in the fire hydrant valve body, a blocking plate is arranged in the direction of the flow channel, an installation seat is arranged on the side face of the blocking plate, a filter element is installed in a limiting groove in the installation seat, and the filter element is arranged in the limiting groove in the installation seat. A pressure reducing opening and a water outlet are formed in the side face of the baffle at the same height, an adjusting block is arranged on the side face of the pressure reducing opening, the upper portion of the adjusting block is connected with a connecting block, the top of the connecting block is movably connected with a rotating rod through a pull rod, and the rotating rod is in threaded connection in a limiting seat. The fire hydrant in the rotary pressure reduction chamber is scientific and reasonable in structural design, solves the problem that a common fire hydrant valve body is not provided with a filter mechanism, and has the advantage of having a pressure regulation function.

To provide a liquid discharge head and a liquid discharge device which can suppress poor discharging and ink leakage from occurring.SOLUTION: When pressure difference between a bubble reservoir chamber 520 and a decompression chamber 760 is set to 50 kPa, the permeation amount of gas that is permeated through a gas permeation film 710 in a range of areas of 0.36 cm2 constituted of polypropylene (PP) is set to be equal to 0.01 cc / day or more.SELECTED DRAWING: Figure 27

The invention relates to a liquid ejecting head and a liquid ejecting apparatus. The purpose of the present invention is to provide a liquid ejecting head having improved use stability. The liquid ejecting head includes: an ejection port for ejecting a liquid; a pressure chamber provided with an energy generating element configured to generate energy for ejecting the liquid from the ejection port; and a bubble removal unit configured to remove bubbles from the liquid to be supplied to the pressure chamber. The bubble removal unit has: a liquid storage chamber in fluid communication with one end of the pressure chamber and capable of accommodating a liquid; a gas-permeable membrane through which gas can permeate; the decompression chamber is adjacent to the liquid storage chamber, and the breathable film is located between the decompression chamber and the liquid storage chamber; and a deformation suppressing unit configured to contact the gas-permeable film to suppress deformation of the gas-permeable film.

The invention relates to a gas valve. A valve body is provided with a gas inlet, a gas inlet channel, a decompression chamber, a gas outlet channel and a gas outlet. A control part, a transmission mechanism and a switch part are arranged at the front end of the valve body, the control part drives the switch part through the transmission mechanism, and the switch part is arranged on a channel through which the decompression chamber is communicated with the air outlet channel and controls the opening / closing of the air outlet through the movement of the switch part; and the switch piece is arranged on one side deviating from the axis of the air inlet. The defect that in the prior art, a valve body is too thick, so that a gas supply tank is exposed when the valve body is applied to a small portable gas stove is overcome.

The beverage dispensing head (8) has a beverage supply duct (11); a distribution chamber (12) fluidically connected to the beverage supply duct (11) and provided with two calibrated outlet orifices; two decompression chambers (14) which are respectively fluidically connected to the distribution chamber (12) via the two calibrated outlet orifices, each of the decompression chambers (14) being provided with a discharge orifice; and two beverage dispensing nozzles (9) which are respectively fluidically connected to the two discharge orifices and through which a ready-made beverage is able to flow into a container positioned below the beverage dispensing head (8).