122 results about "Bubble chamber" patented technology

An integrated helmet having blunt force trauma protection includes a helmet shell, an inner impact layer and the replaceable impact layer. The helmet shell is preferably fabricated from carbon fiber or a high impact plastic. A plurality of openings are formed through the helmet shell to reduce weight. The inner impact layer is attached to an inside surface of the helmet shell. The inner impact layer includes a plurality of deformable bubbles, which communicate with each other through a plurality of air channels. The inner impact layer will not burst upon impact. The plurality of deformable bubble chambers are filled with air to allow air to be displaced from one area to another area. The replaceable impact layer is attached to an outside surface of the helmet shell. The replaceable impact layer will burst upon impact.

To provide an ink jet record head having a nozzle shape capable of, when further rendering liquid droplets smaller, reducing flow resistance in a discharge direction and preventing reduction in discharge speed of ink droplets.

An opening face on a bubbling chamber 11 side of a second discharge port portion 10 is shaped so that a length in a direction parallel with an arrangement direction of discharge ports 4 is longer than the length in the direction vertical thereto, and the opening face on the discharge port portion side is also a sectional shape congruent with the opening face on the bubbling chamber 11 side. In the drawing, a cross section cut in a direction approximately parallel with the surface on which heaters 1 are formed of the second discharge port portion 10 is an approximately rectangular shape.

According to the present invention, a discharge speed of liquid droplets is increased, a discharge amount of liquid droplets is stabilized, and a discharge efficiency of the liquid droplets is enhanced. A bubbling chamber has: a first bubbling chamber which is connected to a supply path while a main surface of an element substrate is a bottom surface and in which bubbles are generated in ink by a heater; and a second bubbling chamber connected to the first bubbling chamber. Moreover, a nozzle has a discharge port portion including a discharge port connected to the second bubbling chamber. Assuming that an average sectional area of the first bubbling chamber is S1, an average sectional area of the second bubbling chamber is S2, and an average sectional area of the discharge port portion is S3 in a section parallel to the main surface of the element substrate, the nozzle satisfies a relation of S2>S1>S3.

The invention relates to a method for measuring the bubble size, the bubble number and the bubble movement velocity in a gas-liquid two-phase flow. During the ultrasonic propagation process in the fluid, no significant energy attenuation occurs during the propagation process. During the ultrasonic propagation process in the gas-liquid two-phase flow, the acoustic impedance of the gas is much smaller than that of the liquid, so that the energy loss is caused. Through detecting the attenuation degree and the attenuation time of ultrasonic waves, the particle size of gas bubbles and the movement velocity of gas bubbles can be determined. In this way, the number of gas bubbles in a measurement region within a certain period of time can be obtained. The measurement system is simple in structure and low in equipment cost, which can realize the on-line measurement. The method is applied to the scientific research in a laboratory, and is particularly applicable to applications at an industrial site. Compared with gas bubble measurement methods based on other principles, such as the capacitance method, the photoelectric method and the like, ultrasonic waves are stable in performance, free from being interfered by the circuit, strong in penetrating power and capable of being propagated in optically opaque media. The above method is fast in measurement speed, easy to measure and good in data automation, thus having significant advantages.

The invention discloses a white mud/carbide slag-gypsum wet flue gas desulfurization device and a white mud/ carbide slag-gypsum wet flue gas desulfurization method. The device comprises an absorption tower; the top and the middle part of the absorption tower are respectively provided with a flue gas outlet and a first flue gas inlet; a demister, a spraying device, a spraying chamber and a tower kettle are sequentially arranged in the absorption tower from top to bottom; the tower kettle is divided into a slurry chamber and a bubbling chamber by a side wall which is arranged in the tower kettle and is perpendicular to the tower bottom; the bubbling chamber is externally connected with a gypsum pump; a stirrer, an oxidation air pipe and a plurality of bubbling pipes are arranged in the bubbling chamber; the wall of the absorption tower is provided with a second flue gas inlet communicated with the bubbling pipes; and the side wall is provided with an overflow port communicated with the slurry chamber. According to the device and the method, the absorption tower is designed according to the property of white mud/carbide slag, spraying desulfurization is implemented in the spraying chamber, and bubbling oxidation of desulfurized slurry is implemented in the bubbling chamber, so that the spraying desulfurization and the bubbling oxidation are implemented separately in the absorption tower, the desulfurization efficiency and the quality of gypsum are ensured, equipment is simplified, and the cost is reduced.

The invention relates to a bubbling automatic humidifier, belonging to the filed of air conditioning. The humidifier comprises an air pump, a humiture monitor, an electric heater, a bubbling chamber, a perforated plate, a liquid level control valve, a water supply pipe, a shutter, a moisture outlet, a humidity sensor and a temperature sensor. The perforated plate is arranged horizontally in the bubbling chamber and proper amount of water is added into the bubbling chamber to lead the water level to be 20mm-80mm higher than the top of the perforated plate; the electric heater is arranged in the water at the lower part of the perforated plate to heat a pond in the bubbling chamber; at the time, if the air pump is started to pump air in the lower part of the bubbling chamber, a large quantity of bubbles are formed at the perforated plate and float and rise in the water; saturated humid air is formed in the bubbles rapidly; finally the bubbles escape from the water surface and carries the water vapour to the space in need of humidification. The bubbling automatic humidifier can humidify environment with convenience, rapidness, energy saving, low noise and automation.

The invention discloses a disposing method of ketone azino hydrazine hydrate waste water, which comprises the following steps: leading the ketone azino hydrazine hydrate waste water into bubbling chamber; keeping constant temperature at 35-100 deg. c; leading the waste water and oxidizer into oxidizing tank; maintaining the temperature at 20-100 deg. c; reacting organics and amonia in the waste water with oxidizer completely until the ammonia nitrogen content less than 4mg/l and organics less than 200mg/l; using in the alkali-chloride manufacturing course of diaphragm method; reducing the manufacturing cost of alkali-chloride; avoiding the pollution due to discharging the waste water directly.

The invention discloses an artificial propagation method by hybridizing female channa maculata and male channa argus, which belongs to the technical field of crossbreeding of fishes. The method comprises the following steps of: picking parents; performing artificial hormone expediting for the first time; performing the artificial hormone expediting for the second time; allowing the parents to perform self-copulation and lay eggs; hatching the fertilized eggs; and hatching the fertilized eggs to break the membranes. The method has the following advantages that: simple and convenient operation and low cost are achieved by using a bubble chamber and the bubble chamber is suitable for large-scale seedling production, has a good heat preservation effect and a good shielding effect and is favorable for oestrus and spawning of the parents; through the two expediting processes, the oestrus of the male and female fishes has high synchronism, the expediting rate reaches over 96 percent and the fertilization rate reaches over 85 percent; pairing is performed after the second expediting, so that the harm caused by the male fish to the female fish is reduced and the death rate of the female fishes is ensured to be below 5 percent; the fish eggs laid by each pair of parents are individually hatched in one bubble chamber, so that the influence of bag eggs is reduced and the hatching rate is improved; and the hatching water temperature is controlled within the range from 28 to 30 DEG C, so the hatching rate is effectively increased and can reach over 85 percent.

The invention relates to an in-situ cadmium removal method for underground water. The in-situ cadmium removal method is characterized by comprising the following steps that: cadmium-polluted underground water flows into an injection well, mixed with an added surface active agent in the injection well and then enters an ion flotation grating which is provided with an aerator pipe at the bottom, a great amount of air bubbles are separated when cadmium ions attached on the surfaces air bubbles in the underground water rise to a bubble chamber of the ion flotation grating under the action of air turbulence, and the bubbles are further removed from discharged water through a bubble strengthening separation well so as to improve the quality of the discharged water. The in-situ cadmium removal method of the underground water, disclosed by the invention, has the advantages of high cadmium removal efficiency and long stably running period of a system, and can economically and effectively repair the cadmium-polluted underground water in situ.

An object of the present invention is to provide a reliable ink jet print head that enables small ink droplets to be ejected at a high frequency while preventing possible satellites and mist. In the present invention, a bubbling chamber in which an energy generating element is disposed communicates, via an ejection port portion, with an ejection port 7 provided opposite the energy generating element. The ejection port portion is formed such that flow resistance to ink is lower in an area of the ejection port portion which is positioned inward from a center of the ejection port in an ink supply direction of ink flowing along the ink supply channel, than in an area of the ejection port portion which is positioned outward from the center of the ejection port.

The invention belongs to the technical field of freshness preservation of fish products, and relates to a physical freshness preservation method of uncooked fish meat or fish fillets. The physical freshness preservation method comprises the steps as follows: firstly, innocuous and unpoisonous fresh fish which can be eaten crudely are selected and cultivated for 1-2 days without food; secondly, the fresh fish is killed, processed, electrically stunned, subjected to gill removing and bloodletting, and manufactured into a non-frozen vacuum-packed fish product at the temperature of zero DEG C in a special sterile low-temperature workshop; and thirdly, the manufactured vacuum-packed fish product is placed in a bubble chamber with an ice bag at the temperature lower than zero DEG C for freshness preservation. The physical freshness preservation method of the uncooked fish meat or the fish fillets has the advantages as follows: the fish product is nutrient-rich, safe, hygienic, good in taste and convenient to transport, the freshness preservation time is longer than 72 hours, the freshness preservation belongs to purely physical and anhydrous freshness preservation, any chemical substances are not added, and the method is applicable to processing and freshness preservation for uncooked fish.

The present invention provides a liquid ejection head which includes a plurality of ejection ports 302 arranged so as to form an ejection port row and which, after a recovery process of expanding and transferring a bubble toward an ink supply port, allows the bubble to be smoothly removed from a nozzle 310. electrothermal transducing element A plurality of nozzle filters 306 are arranged between an ink supply port and the ink channel 304 so that ink supplied to the bubbling chamber 303 through the ink supply port is passed between the nozzle filters 306 to separate impurities contained in the ink, from the ink. When a distance between an ink channel inlet 311 and the nozzle filter 306 is defined as L1 and a distance between the adjacent nozzle filters 306 is defined as L2, a relationship between L1 and L2 satisfies L1≦L2.

The invention provides a containment vessel long-term pressure relief filtration system. A circular liquid flowing channel is arranged in a housing; a bubbling chamber is formed between an outer wall of the circular liquid flowing channel and an inner wall f the housing; an inversed T-shaped cylindrical venturi scrubber chamber is formed in the inner wall of the circular fluid flowing channel; the bottom of the venturi scrubber chamber communicates with the lower end of the circular fluid flowing channel; self-suction venturi scrubbers are evenly arranged in the circumference direction of the venturi scrubber chamber; the lower inlet of each self-suction venturi scrubber communicates with a gas discharging pipe of a containment vessel; the upper end of the circular fluid flowing channel communicates with the bubbling chamber; bubbling systems are evenly arranged the circumference direction of the bubbling chamber; each bubbling system includes bubbling hole plates and communication pipes; and one end of each communication pipe is connected to the corresponding bubbling hole plate, and the other end of each communication pipe communicates with the upper part of the venturi scrubber chamber. The containment vessel long-term pressure relief filtration system has a higher removing efficiency, and can especially and remarkably improve the removing efficiency of methyl iodide gas.

The invention discloses a Method for preparation of quasi sphericity black ferriferrous oxide magnetic powder, belonging to the compositing technique of magnetic powder. This method containing steps as follows: mixing the ferrisulphas and ferric persulfate according to mol ratio as 1:0-0.8 and adding water mill to dissolve, and then heating-up adding sodium carbonate solution, or blowing air and adjusting Ph value as 7-9 by caustic lye of soda, in order to forming bubble chamber microenvironment and making precipitate slurry in this environment, making the precipitate slurry in bubble chamber microenvironment, 70-95 Deg C, pH value 9-12 doing reaction to crystallization, after water filtration, drying,comminuting, getting quasi sphericity black ferriferrous oxide magnetic powder. The advantage of this invention is lies in: forming given bubble chamber microenvironment by controlling condition in synthesize course, in order to reach the purpose of controlling the appearance of magnetic powder as quasi sphericity. The method is simple, the cost is low, the products' appearance is quasi sphericity, the granularity is quite equal, the mean particle diameter is 50-200nm.

The invention discloses a continuous waste plastics refining unit, comprising elements such as a feeder and the like. The feeder is connected with a feed worm propeller; an oil gas outlet is arranged below a catalytic tank and is connected with an intercondenser; a hydrochloric acid discharge outlet is arranged on a bubbling chamber; the feed worm propeller is inserted into a dechlorination device; a bleed hole is positioned on the top end of a cracker; a fan is arranged below the cracker; the gas inlet of a burner is positioned below the cracker and is connected with a first gas storage tank; a first dewatering outlet is positioned below the intercondenser; a heavy oil discharge port is positioned below a diesel rectification tank; a liquefied gas outlet is positioned below the first gasstorage tank; a cooling water inlet is connected with a gasoline rectification tank, the diesel rectification tank, a compressor condenser, a deslagging device and a feeding device via water pumps; asecond filter is connected with a gasoline storage tank; a third filter is connected with a diesel storage tank; and a vacuum pump is positioned between the bubbling chamber and the dechlorination device. The invention can react, crack, reduce, catalyze and refine continuously.

The invention relates to a tray bubble type biomass continuous photosynthetic hydrogen production method and device, belonging to the technical field of biomass photosynthetic hydrogen production. The method is characterized in that by utilizing sunlight, under the conditions of a built-in light source and a closed volume, biomass alternately passes through quartz side optical fiber trays and U-shaped heat exchanger trays, and under the bubble effect of reflux hydrogen, a continuous hydrogen producing process is realized by suspension heat exchange and dark-and-light fermentation. The method provided by the invention is simple in process and convenient to operate. The device is mainly composed of a sunlight transmitter, a tray type fermentation reaction tank, a heater, a gas chamber, a bubble chamber, a reaction liquid reflux part and a hydrogen reflux part. The device provided by the invention is reasonable in design and simple to operate, can ensure that the temperature of the reactor is uniform, realizes alternate dark-and-light fermentation of feed liquid, and achieves biomass continuous hydrogen production under an environmental condition of lower temperature, thereby reducing the limits of conventional energy resource consumption and hydrogen production by low-temperature fermentation, improving the biomass hydrogen producing efficiency, and realizing stable, efficient and continuous operation of the reactor.

The invention discloses a multifunctional car washing device which comprises a mobile car washing machine, a car washing waste water recycling machine and a car scrub water spraying board, wherein, the mobile car washing machine comprises a dewatering machine, a dust and water collector, a waste water filtering and recycling bin, a bubble chamber, a pressure-resisting pressurized water storage tank and a car push rod; a discharge pipe is respectively arranged on the bubble chamber and the pressure-resisting pressurized water storage tank; after being combined into one, the discharge pipes are combined with a pressurized escape pipe into a water outlet; the car washing waste water recycling machine consists of a plurality of waste water recycling grooves which are extractable grooves; the car scrub water spraying board comprises a water spraying cavity on which a water spraying hole and a car scrub wool sheath are arranged. When the device is used, a switch of a water inlet pipe of tap water is opened; the tap water enters the pressure-resisting pressurized water storage tank; if the pressure of the original tap water does not change a lot, the original tap water can be sprayed for washing cars from a water outlet pipe and the car scrub water spraying board, and the traditional way of washing cars under high pressure is not required every time. If car bodies are too dirty, the pressurized escape pipe can be opened to increase the pressure of the tap water to wash the cars rapidly.

The invention provides a high-efficiency portunus trituberculatus seedling conveying method, and belongs to the technical field of cultivation of portunus trituberculatus. The high-efficiency portunus trituberculatus seedling conveying method comprises the following steps of (1) seedling selection: randomly selecting a first stage of juvenile portunus trituberculatus from a nursery pond by using 72-hour low-salt medial lethal concentration 10.79 of the first stage of the juvenile portunus trituberculatus as dosage, performing a salinity stress experiment, calculating the survival rate after 72 hours, and selecting a second stage of juvenile portunus trituberculatus in a nursery pond with the survival rate higher than 50% as conveying seedlings; and (2) a conveying method: uniformly mixing wheat shells which are soaked and then are drained off and the second stage of the juvenile portunus trituberculatus according to the weight ratio of 1:1 at first, placing the mixture in a seedling bag, inflating oxygen in the seedling bag, binding the opening of the bag by using a rubber band, placing the seedling bag in a bubble chamber, finally, placing biological ice bags in the bubble chamber, and sealing the bubble chamber by using adhesive tapes. By the high-efficiency portunus trituberculatus seedling conveying method, the seedling conveying time can be 10-12 hours, the conveying yield reaches 98.5%, the damage rate of the juvenile portunus trituberculatus reaches 1.2%, and the seedling cultivation survival rate is guaranteed.

The invention discloses a mercury spectroscopic lamp. The mercury spectroscopic lamp comprises a bubble chamber and an excitation box. The excitation box comprises a signal feed-in unit used for transmitting microwave signals, and a radio frequency power amplifying transmission unit connected with the signal feed-in unit via a coaxial cable. The bubble chamber comprises a sapphire lighting bubble, a heater and a helical line. The helical line is wound on outer surface of the sapphire lighting bubble, connected with a wire of the output end of the radio frequency power amplifying transmission unit and used for providing microwave signals going through the radio frequency amplification for the sapphire lighting bubble. The heater is used for heating the sapphire lighting bubble. The sapphire lighting bubble is filled with mercury isotopes. When the heater heats the sapphire lighting bubble to a set temperature, mercury ions in the sapphire lighting bubble give out laser with the set wavelength under effects of microwave signals provided by the helical line. By use of the sapphire lighting bubble, contamination to the inner mercury ions caused by impurities and loss of the mercury ions can be greatly reduced or avoided in a working process and service lifetime of the mercury spectroscopic lamp is effective extended.

The invention discloses a fresh and alive Hucho taimen big fish transporting method. The method includes the following steps of firstly, preparing a container for containing fresh and alive Hucho taimen big fish, wherein the volume of the container ranges from 100 L to 300 L; secondly, adding one volume of water to the container, placing a fresh and alive Hucho taimen big fish in the container so that the body of the big fish is totally immersed in water; thirdly, sealing the opening after 5 volumes to 6 volumes of pure oxygen is injected into the container; fourthly, transporting the big fish through a bubble chamber at a low temperature. The fresh and alive Hucho taimen big fish transporting method can solve the problem that the death rate is high during Hucho taimen big fish transportation.