14 results about "Decompression chamber" patented technology

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.

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.

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.

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).

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 that can supply the aqueous ink to the pressure chamber; a decompression chamber, which is arranged adjacent to the liquid retention chamber, and which is configured to be capable of decompressing an inside of the liquid retention chamber; and a gas permeable membrane having a thickness of 0.01 mm or more and arranged at a boundary between the liquid retention chamber and the decompression chamber.

The utility model discloses a three-stage pressure reducing valve which comprises a valve body, an air inlet connector is arranged on the left side of the valve body, the air inlet connector is connected with an air inlet connector, a first-stage pressure reducing chamber is arranged on the right side of the valve body, and the first-stage pressure reducing chamber is communicated with the air inlet connector. A second-stage pressure reducing chamber is arranged at the lower end of the valve body, and the second-stage pressure reducing chamber is communicated with the first-stage pressure reducing chamber through a first air channel; a third-stage pressure reducing chamber is arranged at the upper end of the valve body and communicates with the second-stage pressure reducing chamber through a second air channel. An air outlet connector is formed in the rear side of the valve body and connected with an air outlet connector, and the air outlet connector communicates with the third-stage pressure reduction chamber through a third air channel. By arranging the three-stage pressure reduction chamber and the elastic elements such as the spring and the disc spring matched with the three-stage pressure reduction chamber, a multi-stage pressure division structure is formed, pressure reduction adjustment of high-pressure gas can be achieved for a long time, and the multi-stage pressure reduction chamber is suitable for scenes with different pressure requirements.

The invention relates to the technical field of underwater tunnel and deep foundation pit engineering construction, in particular to a double-layer steel sheet pile cofferdam underwater tunnel open excavation construction method with a drainage pressure reduction cavity, and the construction method comprises the specific steps that outer side steel sheet piles are driven in an underwater construction area along the outer contour of a tunnel foundation pit, and an outer layer cofferdam used for retaining soil is formed; inner side steel sheet piles are arranged on the inner side of the outer-layer cofferdam to form an inner-layer cofferdam for water stopping, and a drainage pressure reduction cavity is formed between the inner-layer cofferdam and the outer-layer cofferdam; a drainage device is arranged in the drainage pressure-reducing cavity, and active precipitation is conducted on the drainage pressure-reducing cavity through the drainage device; foundation pit excavation is conducted in the inner-layer cofferdam, and open excavation construction of the tunnel main body structure is completed in the dry operation environment; by means of the arrangement that the double-layer steel sheet pile cofferdam and the drainage pressure reduction cavity are combined, water pressure can be transferred and released from the water stop cofferdam, the water pressure borne by the inner-layer water stop cofferdam can be reduced, and the water stop safety of the cofferdam is improved.

The invention relates to a high-altitude product stability simulation evaluation measurement method and measurement device. The measurement device comprises a decompression chamber and a test box. A temperature and humidity adjusting system and a vacuum system are arranged in the test box and used for simulating temperature, humidity and air pressure environments under different altitude conditions. After a person carries a sample to enter the decompression chamber for initial decompression adaptation, the sample enters the test box to complete sample connection and workflow operation verification, and the safety of the person is guaranteed through a protective helmet and a physical sign monitoring device in the test process. Through graded pressure adjustment of the decompression chamber and the test box, multi-parameter cooperative control of temperature, humidity and air pressure is realized, product function and performance verification under complex working flow is supported, and a high-altitude operation scene is truly restored. According to the method and the device, the functional effectiveness, the performance stability and the operation safety of the product in the high-altitude environment can be comprehensively evaluated, the problems that an existing low-air-pressure test box cannot be subjected to complex operation verification and the environment simulation is insufficient are solved, and the method and the device have good engineering application and clinical verification values.

A pressure regulator for a liquefied petroleum gas container is provided. [Solution] A high-pressure chamber (10) is provided above a pressure regulator (1). An inlet connection (20) opens horizontally on one side of the high-pressure chamber and is connectable to one end of an upstream pipe. A decompression chamber (30) is connected to the lower part of the high-pressure chamber and communicates with the high-pressure chamber. A nozzle (40) is provided between the high-pressure chamber and the decompression chamber. A valve element (50) is provided below an outlet (40b) of the nozzle and is capable of reciprocating vertically within the decompression chamber. A diaphragm (60) is provided between the decompression chamber and atmospheric pressure (A) and is capable of adjusting the gas pressure in the decompression chamber. A lever (70) is pivotally supported at a predetermined position (31) inside the decompression chamber and has one end (70a) connected to the valve element and the other end (70b) connected to the diaphragm, allowing adjustment of the gas flow rate from the high-pressure chamber to the decompression chamber. An outlet connection (80) opens downward at the lower part of the decompression chamber and is connectable to one end of a downstream pipe. The inlet (40a) of the nozzle is located above the inlet connection.

To provide an inkjet recording method excellent in suction recovery properties and ink discharge stability.SOLUTION: Using an ink jet recording apparatus including a recording head including an ejection orifice for ejecting an aqueous ink, a pressure chamber communicating with the ejection orifice, an ejection device disposed in the pressure chamber and generating energy for ejecting the aqueous ink from the ejection orifice, a liquid storage chamber capable of supplying the aqueous ink to the pressure chamber, a decompression chamber disposed adjacent to the liquid storage chamber and configured to be capable of decompressing the inside thereof, and a gas permeable membrane having a thickness of 0. 01mm or more disposed at a boundary between the liquid storage chamber and the decompression chamber, An ink jet recording method includes applying an aqueous ink ejected from an ejection orifice to a recording medium to record an image. The surface tension γ I (mN / m) of the aqueous ink at 25 °C. and the surface energy γ m (mN / m) of the gas-permeable membrane satisfy the relationship of the following formula (1). Γ I - γ m ≤ 11 (1) SELECTED DRAWING: None

This invention discloses a device for emotional catharsis and regulation in students' mental health, relating to the field of mental health equipment technology. It includes a decompression chamber with a hinged, silent door. A platform is installed inside the chamber via bolts, and vertically distributed columns are mounted on the platform. A catharsis module for emotional catharsis is also mounted on the platform, comprising an exercise mechanism, a liquid level indicator, and a breathing regulation mechanism. The exercise mechanism includes a turntable rotatably connected to the top of the columns, with concentrically distributed main rotating shafts fixedly mounted on the turntable. These main rotating shafts are rotatably connected to the columns via bearings. A secondary rotating shaft, driven by the main rotating shaft, is also provided on the platform. During use, students can release limb tension by rotating and pressing the turntable. The platform and columns provide students with a comfortable and stable catharsis posture, allowing for effective release of negative emotions through movement without the need for physical punishment.

To provide an inkjet recording method excellent in suction recoverability and ink discharge stability even when using ink containing wax for recording an image excellent in scratch resistance.SOLUTION: Using an ink jet recording apparatus including a recording head including an ejection orifice configured to eject an aqueous ink, a pressure chamber communicating with the ejection orifice, an ejection element disposed in the pressure chamber and configured to generate energy for ejecting the aqueous ink from the ejection orifice, a liquid storage chamber configured to supply the aqueous ink to the pressure chamber, a depressurization chamber disposed above and adjacent to the liquid storage chamber in a vertical direction and configured to depressurize an inside thereof, and a gas permeable membrane disposed at a boundary between the liquid storage chamber and the depressurization chamber, An ink jet recording method includes applying an aqueous ink ejected from an ejection orifice to a recording medium to record an image. A melting point Tw (°C) of the wax particles in the aqueous ink and a maximum temperature Ti (°C) of the aqueous ink in the liquid storage chamber satisfy a relationship of the following Expression (1). Tw-Ti ≥ 10 (1) SELECTED DRAWING: None