105 results about "Decompression chamber" patented technology

The invention relates to the technical field of aircrafts, in particular to a built-in compressed air and carbon dioxide linkage drainage system and an aircraft. The drainage system comprises a drainage device, a water ballast tank, a first connecting pipeline and a control unit, a first storage cavity for storing liquid carbon dioxide is formed in the first power unit, a second storage cavity for storing high-pressure air is formed in the second power unit, and a pressure reduction cavity is formed in the pressure reduction unit; the first storage chamber and the second storage chamber are both selectively communicated with the pressure reduction chamber; the water ballast tank is provided with a third storage chamber selectively communicated with the pressure reduction chamber; the first connecting pipeline is connected with the second power unit and the pressure reduction unit, and a first on-off valve is arranged on the first connecting pipeline; the first power unit is suitable for converting liquid carbon dioxide into high-pressure supercritical carbon dioxide under the control of the control unit, and the high-pressure supercritical carbon dioxide enters the third storage chamber after being decompressed by the decompression chamber, so that the first connecting pipeline selectively communicates with the second storage chamber and the decompression chamber.

The invention relates to the technical field of underwater vehicle drainage, and discloses an air and carbon dioxide linkage drainage device and an underwater vehicle, the air and carbon dioxide linkage drainage device comprises a power unit, an air unit, a pressure reduction unit and a flow guide assembly, and the power unit is provided with a first storage cavity; the first storage chamber is used for storing liquid carbon dioxide, the air unit is provided with a second storage chamber, the second storage chamber is used for storing high-pressure air, the pressure reduction unit is provided with a pressure reduction chamber, the pressure reduction chamber selectively communicates with the first storage chamber and the second storage chamber, and the flow guide assembly is provided with a first air inlet and a first air outlet; the first air inlet is communicated with the pressure reduction cavity, and the first air outlet is communicated with the water ballast space. The technical problems that carbon dioxide is prone to cooling when encountering water, then volume shrinkage is caused, and the drainage capacity of an air and carbon dioxide linkage drainage device is reduced are solved.

The utility model relates to a filter cloth edge sealing structure of an emulsion vacuum filter, which comprises a vacuum filter, a decompression chamber arranged at the bottom in the vacuum filter, a chain bed arranged above the decompression chamber, and filter cloth paved on the upper surface of the chain bed, and is characterized in that two groups of sealing components are symmetrically arranged on two sides above the chain bed; the sealing assembly comprises a sealing strip and a sealing pressing plate located above the sealing strip, and a sealing pressing part pressed on the upper surface of the filter cloth is arranged on the side, facing the middle downwards, of the sealing strip. The edge sealing structure of the filter cloth of the emulsion vacuum filter is reasonable in design, novel in structure and high in practicability, the edge sealing effect of the filter cloth is improved, emulsion cannot flow away from the edge of the filter cloth, the emulsion filtering efficiency is improved, and the filtering effect is improved.

The invention belongs to the technical field of pipeline equipment, and discloses a pressure reducing device for filling and mining deep well conveying, which comprises a pressure reducing bin, a stirring and defoaming mechanism is arranged in an inner cavity of the pressure reducing bin, and a detection mechanism is arranged on the outer side of the pressure reducing bin. Slurry enters the inner cavity of the pressure reduction bin from the connecting pipe, the inner cavity of the pressure reduction bin is suddenly open, the slurry falls into the inner cavity of the pressure reduction bin through the gravity of the slurry, then the stirring and defoaming mechanism is driven by the detection mechanism to operate, bubbles in the slurry are removed, and the situation that when the slurry is conveyed to an underground deep mining area, the bubbles are too many, and the mining efficiency is improved is avoided. And through stirring of the stirring blade shaft, the slurry entering the inner cavity of the pressure reduction bin is uniformly stirred, and the situation that part of the slurry precipitates in the flowing process of a pipeline, so that the concentration of the part of the slurry is increased, and a connecting pipe is abraded is avoided.

The utility model discloses a gourd-shaped barium powder liquid sac nasogastric tube for cardia reflux prevention, comprising a nasogastric tube body, the nasogastric tube body comprising a tube cavity section, a balloon section, a stomach tube section and an intestinal tube section connected in sequence; the tube cavity section comprises a cardia reflux liquid sac cavity, a stomach decompression cavity, a stomach decompression balance cavity and an intestinal nutrition cavity arranged at intervals; the balloon section comprises a balloon embedded in the balloon section of the nasogastric tube body, and one end of the cardia reflux liquid sac cavity is connected to the inside of the balloon. The tube cavity section of the nasogastric tube is equipped with a cardia reflux liquid sac cavity, a stomach decompression cavity, a stomach decompression balance cavity and an intestinal nutrition cavity. Medical staff can start balloon expansion through the cardia reflux liquid sac cavity to avoid reflux at the cardia, and can balance the intragastric pressure through the stomach decompression balance cavity when sucking gastric juice. The function of the nasogastric tube is more complete and reasonable than that of the previous one.

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 utility model relates to the technical field of decompression chambers, in particular to a docking device for a decompression chamber. Comprising a butt joint device body, the two sides of the butt joint device body are each provided with a decompression chamber, two first clamping grooves are formed in one side wall of the butt joint device body, two second clamping grooves are formed in the other side wall of the butt joint device body, and a movable sliding block is arranged in each limiting sliding groove; a set of limiting sliding grooves are formed in the two ends of the pressure reduction cabin, a set of fixing inserting rods are arranged in each set of limiting sliding grooves, a set of adjusting supporting rods are arranged in each set of limiting sliding grooves in a sliding and attached mode, two sets of fixing sliding strips are arranged on one side wall of each set of pressure reduction cabin, and a set of limiting inserting holes are formed in the two ends of each set of fixing sliding strips; a plurality of groups of electric telescopic rods are arranged below the docking device main body, and a plurality of groups of moving rollers are arranged below the docking device main body. According to the embodiment of the invention, the butt joint precision of the equipment is improved, and meanwhile, the practicability of the equipment is improved.

The present application relates to the technical field of non-woven fabric manufacturing, and in particular to a flash spinning critical state stabilization device and a flash spinning equipment. A decompression chamber is provided inside the flash spinning critical state stabilization device; a decompression device is provided at one end of the decompression chamber, and a decompression port connected to the decompression chamber is provided on the decompression device, and a spinneret connected to the decompression chamber is provided at the other end of the decompression chamber, so that the spinning solution enters through the decompression port of the decompression device, flows through the decompression chamber, and is ejected from the spinneret; a heating device is provided in the decompression chamber to heat the spinning solution flowing through the decompression chamber. The flash spinning critical state stabilization device heats the decompression chamber by arranging a heating device, and can control the temperature of the decompression chamber, reduce the temperature difference of the spinning solution at the inlet and outlet of the decompression chamber and in the decompression chamber, and reduce the production fluctuation of the temperature of the decompression chamber, so that the spinning solution has good stability in the critical state of flash spinning, thereby ensuring the production quality of the fiber.

The invention discloses a hairtail breeding method and a hairtail breeding device, and belongs to the field of aquaculture, and the hairtail breeding device comprises a buoy, a net cage, a bait recovery system and a pressure regulation and control system. The buoy is hung on the net cage at the water depth of 20-40 meters through a plurality of ropes, the bottom of the net cage is connected with the funnel device and the recovery pipe, the left branch is provided with the filter screen connected with the bait collector, and the right branch is connected with the decompression chamber. The bait stacking height is monitored through double cameras, and a computer is matched to control an induction valve to achieve automatic bait recovery and mature hairtail fishing. A gradual pressure adjusting system is adopted in the decompression chamber, pressure is gradually reduced to normal pressure within 30 minutes through cooperative control of a monitoring ship winch and a fixed pulley, and the survival rate of the hairtail is guaranteed in cooperation with a synchronous lifting device. The top of the net cage is provided with a central feeding pipe, and a safe bait layer is reserved at the bottom. The device effectively simulates the natural habitat of hairtail, realizes bait cyclic utilization, intelligent water quality maintenance and lossless recovery of living hairtail, and comprehensively improves the breeding efficiency and the product quality.

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.

The invention relates to an EUV optical module (35) for an EUV projection exposure device (1), comprising at least one optical component (19, 21, 23, 7, M1 to M6, 13) having an optical surface for guiding used EUV radiation (16) from an EUV source (3) along an illumination and / or imaging beam path of the projection exposure device (1). The optical components (19, 21, 23, 7, M1 to M6, 13) are housed in the decompression chamber (36). A gas source (37) is fluidly connected to the reduced pressure chamber (36) via at least one valve. The gas source (37) is designed such that it provides at least the following gases: hydrogen. The result is an EUV optical module with a longer operating time.

The invention provides an emotion catharsis device for psychotherapy, and mainly relates to the field of psychotherapy auxiliary equipment. The emotion catharsis device for psychotherapy comprises a decompression chamber, a chamber door is installed on one side of the decompression chamber in a hinged mode, a warm light lamp is arranged on the top face of the inner wall of the decompression chamber, a vertical sandbag is fixedly installed in the decompression chamber, and the vertical sandbag is fixedly arranged on the rear portion of one side of the bottom face of the decompression chamber. Two symmetrically-arranged electric telescopic rods are fixedly installed in the middle of the top face of the inner wall of the decompression chamber, the upper ends of the two electric telescopic rods vertically penetrate through the top of the decompression chamber, a horizontal bar is jointly and fixedly installed at the movable ends of the electric telescopic rods, and a displayer and a microphone are fixedly installed on one side of the inner wall of the decompression chamber. The device has the advantages that various catharsis modes such as a vertical sandbag and a horizontal bar are provided, a patient can select a proper catharsis way according to personal preferences and physical conditions, and internal pressure and unhealthy emotion can be released more comprehensively.

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 invention discloses a coal gas pressure reducing and filtering device, including a filter chamber, a pressure reducing chamber, an exhaust chamber, an ash hopper and a plurality of pressure reducing and exhausting mechanisms, wherein a plurality of filter cartridges are arranged inside the filter chamber, the ash hopper is arranged at the lower end of the filter chamber and is connected thereto, the pressure reducing chamber is arranged at the upper end of the filter chamber, and the exhaust chamber is arranged at the upper end of the pressure reducing chamber. The present invention can shorten the coal gas treatment process flow, and realize the filtering and pressure reducing functions at the same time; and can be used in parallel combination, and can select a suitable number of devices for treatment according to the amount of coal gas, which greatly reduces the cost of coal gas treatment, and at the same time reduces the impact on the coal gas treatment system when individual devices are repaired, so that the system can continue to work; and can also conveniently adjust the pressure reducing range of coal gas according to the pressure size and requirements required by the back-end production design.

To improve deaeration efficiency of a deaeration unit using a gas / liquid separation film and suppress moisture in liquid from reducing.SOLUTION: A deaeration unit 30 comprises: a flow passage 31 (for instance, an ink chamber 33) through which liquid (for instance, ink) including moisture flows; a decompression chamber 34 which contacts the flow passage 31 to store water; a gas / liquid separation film 35, arranged at a boundary part between the flow passage 31 and the compression chamber 34, through which gas is transmitted; a decompression pump 36 that decompresses the decompression chamber 34; and a heater 42 that heats at least either of the flow passage 31 and the decompression chamber 34.SELECTED DRAWING: Figure 3

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 utility model relates to the field of gas treatment engineering, and discloses a device for efficiently decompressing gas, which comprises a shell, a decompressing chamber is arranged in the shell, the right side of the decompressing chamber is fixedly connected with a gas inlet pipe, the top side of the decompressing chamber is fixedly connected with a gas exhaust pipe, the gas exhaust pipe and the gas inlet pipe both penetrate through the shell, and the gas inlet pipe is fixedly connected with the gas exhaust pipe. A mounting plate is arranged at the bottom of the shell, a lifting assembly is arranged at the bottom of the mounting plate, a plurality of evenly-distributed supporting shafts are fixedly connected to the top side of the mounting plate, and a plurality of evenly-distributed mounting blocks are fixedly connected to the top ends of the supporting shafts. According to the device, the movable shaft is pressed to move so that one end of the connecting shaft can be pulled out from the interior of the fixed shaft, then the fixed shaft can be taken out from the interior of the mounting block, the shell can be taken down from the top of the mounting plate, and the telescopic column slides in the supporting column so as to drive the shell to adjust the height, so that the device can meet different use requirements.

The three-cavity jejunum nutrient canal comprises a pressure reduction cavity, and a gastral cavity and an intestinal cavity are formed in the pressure reduction cavity; a micro pump is arranged on the inner wall of the decompression cavity; a pressure-sensitive element patch is arranged at the end of the pressure reduction cavity, a negative pressure suction device is arranged at the end, away from the pressure-sensitive element patch, of the pressure reduction cavity, and the pressure-sensitive element patch is electrically connected with the negative pressure suction device. The ends, close to the negative pressure suction device, of the gastral cavity and the enteric cavity penetrate through the outer wall of the decompression cavity; the end, close to the negative pressure suction device, of the gastral cavity is provided with a medicine conveying connector, and the end, close to the negative pressure suction device, of the enteric cavity is provided with a nutrient solution conveying port. The negative pressure suction device comprises a one-way connector connected with the end of the decompression cavity, a liquid collecting bag is arranged at the end, away from the decompression cavity, of the one-way connector, and a negative pressure pump is arranged at the end, away from the one-way connector, of the liquid collecting bag. According to the three-cavity jejunum nutrition tube, pressure reduction, medicine conveying and nutrient solution supply are synchronously carried out, and the treatment efficiency and the living quality of a patient are greatly improved.

The invention discloses a gas pressure reducing valve, which belongs to the field of pressure reducing valves and comprises a pressure reducing valve shell, a pressure reducing cavity is arranged in the pressure reducing valve shell, a hexagonal nut is detachably mounted on the pressure reducing cavity, and an inner hexagonal flat-end fastening screw is detachably arranged in the pressure reducing valve shell. According to the gas pressure reducing valve disclosed by the invention, through the arranged pressure reducing valve shell, when the pressure reducing valve shell integrally decompresses a reaction kettle, gas in the kettle body penetrates into a pressure reducing cavity of the pressure reducing valve shell, then the penetrating section is ejected upwards, and after the penetrating section is ejected upwards, the extension section is enabled to eject the compression spring; the extending section and the limiting section are separated from the sealing rubber mat, meanwhile, air pressure in the reaction kettle can be exhausted from the pressure reduction cavity, and the sealing performance of the valve element can be further improved when the valve element is not jacked upwards by making contact with the valve element and the sealing rubber mat through the arranged sealing pieces.

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.

The invention discloses a screening device for sandblasting abrasive recovery, comprising a debris removal bin, a high-pressure storage bin and a screening box. The invention belongs to the technical field of sandblasting abrasive recovery. A built-in electromagnetic suction plate and an external electromagnetic suction plate can adsorb iron filings in the abrasive. At the same time, when the built-in electromagnetic suction plate and the external electromagnetic suction plate are intermittently energized, the iron filings on the surface of the conical support plate can be moved up and down to prevent the abrasive from being wrapped in the gathered iron filings. After the abrasive enters the high-pressure storage bin and water is injected into the bottom of the high-pressure storage bin, compressed air is input into the high-pressure storage bin by a booster air pump to increase the water pressure in the high-pressure storage bin. Under the action of the water pressure, the abrasive with cracks can be broken or the cracks can be enlarged, which is convenient for subsequent screening.

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 invention provides an underwater anti-explosion security check vehicle with a pressurization cabin, and relates to the technical field of diving decompression cabins, the underwater anti-explosion security check vehicle comprises a security check vehicle rear vehicle plate and a diving decompression cabin, the periphery of the upper end surface of the security check vehicle rear vehicle plate is provided with a rear vehicle chamber outer box plate, and the upper end of the rear vehicle chamber outer box plate is fixedly provided with a rear vehicle chamber top cover; a rear compartment air conditioner is fixedly mounted on the rear compartment top cover; according to the invention, after an underwater person goes ashore, the underwater security check vehicle needs to enter the diving decompression chamber in an extreme time to carry out decreasing decompression and oxygen uptake in a high-pressure environment, so that ammonia gas in a body is prevented from being decompressed to form bubbles, and irreversible injury caused by pressure loss of elements in the body is avoided; and the security check vehicle head can drive equipment on the rear vehicle plate of the security check vehicle on the rear side to move to a place where the diver goes ashore at any time for mobile receiving and pressure reduction, so that the situation that the pressure cannot be reduced in time due to different security check places is avoided.

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