A fluid preparation system includes a tank, a chemical supply line, a mixer, and a deionized (DI) water supply line. The tank contains a first chemical solution. The chemical supply line is coupled to the tank and configured to supply the first chemical solution. The mixer is coupled to the tank. The DI water supply line is coupled to the mixer and configured to supply DI water. The first chemicals solution and the DI water are mixed at the mixer to generate a second chemical solution.

A fluid preparation system includes a tank, a chemical supply line, a mixer, and a deionized (DI) water supply line. The tank contains a first chemical solution. The chemical supply line is coupled to the tank and configured to supply the first chemical solution. The mixer is coupled to the tank. The DI water supply line is coupled to the mixer and configured to supply DI water. The first chemicals solution and the DI water are mixed at the mixer to generate a second chemical solution.

The invention discloses a multifunctional microfluidic detection chip. The detection chip comprises a chip body, on which a sample injection chamber, a sample quantitative chamber, a sample overflow chamber, a diluent storage chamber, a diluent quantitative chamber, a diluent overflow chamber, a quantitative mixing chamber, a reaction chamber and vent holes are disposed; a sample to be detected is injected into the sample injection chamber, and enters the sample quantitative chamber through a microfluidic channel, and the excess reaction sample enters the sample overflow chamber, a diluent in the diluent storage chamber enters the diluent quantitative chamber through a microfluidic channel, and the excess diluent enters the diluent overflow chamber; the reaction chamber includes one or more reaction cavities and a sample blank cavity; after the sample in the sample quantitative chamber is mixed with the diluent in the diluent quantitative chamber uniformly in the quantitative mixing chamber, mixed liquid enters the reaction cavities through microfluidic channels and reacts with a reaction reagent for detection, and enters the sample blank cavity at the same time as a sample blank for detection. The invention can effectively reduce the sample consumption, improve the accuracy of the detection results, and simultaneously detect multiple indicators.

The invention discloses a multifunctional microfluidic detection chip. The detection chip comprises a chip body, on which a sample injection chamber, a sample quantitative chamber, a sample overflow chamber, a diluent storage chamber, a diluent quantitative chamber, a diluent overflow chamber, a quantitative mixing chamber, a reaction chamber and vent holes are disposed; a sample to be detected is injected into the sample injection chamber, and enters the sample quantitative chamber through a microfluidic channel, and the excess reaction sample enters the sample overflow chamber, a diluent in the diluent storage chamber enters the diluent quantitative chamber through a microfluidic channel, and the excess diluent enters the diluent overflow chamber; the reaction chamber includes one or more reaction cavities and a sample blank cavity; after the sample in the sample quantitative chamber is mixed with the diluent in the diluent quantitative chamber uniformly in the quantitative mixing chamber, mixed liquid enters the reaction cavities through microfluidic channels and reacts with a reaction reagent for detection, and enters the sample blank cavity at the same time as a sample blank for detection. The invention can effectively reduce the sample consumption, improve the accuracy of the detection results, and simultaneously detect multiple indicators.

Methods and systems of admixing hydrocarbon liquids from two or more sets of tanks into a single pipeline to provide in-line mixing thereof. In an embodiment of the in-line mixing system, hydrocarbon liquids stored in at least one tank of each of two or more sets of tanks positioned at a tank farm are blended into a blend flow pipe via in-line mixing and the blended mixture is pumped through a single pipeline. In one or more embodiments, the in-line mixing system employs a separate spillback or recirculation loop that is fluidly connected to each set of the two or more sets of tanks to control the flow of the hydrocarbon fluid/liquid from each set of tanks to the blend flow pipe. Associated methods of operating one or more embodiments of the system include regulation of spillback or recirculation loop flow rate and/or pressure to drive the actual blend ratio towards a desired blend ratio.

The present disclosure is directed to systems and methods of providing a mixed-gas inhalant to a patient via a gas recirculation loop. The gas recirculation loop receives a first mixed-gas exhalant having a first carbon dioxide concentration from the patient, one or more carbon dioxide removal devices discharge a second mixed-gas exhalant having a second carbon dioxide concentration that is less than the first carbon dioxide concentration. The second mixed-gas exhalant is combined with a mixed-gas supply to provide a mixed-gas inhalant. The mied-gas supply includes a first gas and a second gas. The mixed-gas supply is pressure and flow controlled to produce a mixed-gas inhalant having a defined composition delivered to the patient at a defined volumetric flow rate. The first gas may include a gas containing oxygen and the second gas may include a gas mixture containing a noble or inert gas and oxygen.

An apparatus and method for automatically preparing a mixture of particles of two or more substances such as but not limited to raw tobacco and raw medical cannabis flowers in one or more receptacle where the mixture proportion is predefined, is disclosed. The apparatus of the invention can be used for mixing any types of herbal substances. Moreover, the apparatus of the invention can be used for mixing one or more kinds of the same substance, for example mixing two or more kinds of marijuana strains. The apparatus includes one or more compartments for inserting each of the substances separately. In some variations of the present invention the size of at least one of the compartments is smaller for predefined smaller quantities of raw herbal material for example, a single marijuana flower.

The present invention relates to a portable liquid mixing device capable of mixing different types of various liquids, and the different types of various liquids may include various beverages. The present invention includes a plurality of containers configured to contain respective specific liquids, a selection unit configured to select any one of the plurality of containers, a control unit configured to control the introduction of a selected liquid into a mixing container, and a mixing unit configured to mix various liquids introduced into the mixing container. According to the present invention, different types of liquids may be mixed together. In particular, beverages having various flavors are put into respective containers, mixed together and then drunk. Furthermore, a scale is marked on the surface of the mixing container, and thus the amount of liquid may be accurately measured, so that liquids may be mixed at an accurate ratio.

The disclosure relates to a specifically static mixer for mixing two components, with a housing, in which a mixing element is accommodated, and an input part with a first intake and a diametrically opposite second intake, wherein, within the input part, a first channel is formed between the first intake and the mixing chamber and a second channel is formed between the second intake and the mixing chamber. The first channel extends radially inward from the first intake and opens into a central opening in the cover. The second channel has two partial channels as storage chambers not leading into the mixing chamber, and two intake sections located radially within the storage chambers and leading into the mixing chamber. The intake sections branch off the respective storage chambers, extend inward in the opposite direction to the first channel and open into the central opening in the cover.

An injection assembly configured to supply an additive from a reservoir to a fluid in a pipe has a pipe portion and an injection pump. The injection pump has a linear motor comprising a stator and an armature reciprocatingly driven by the stator, and a pump portion comprising an additive inlet chamber. A piston coupled to the armature is configured to reciprocate in said inlet chamber, thereby alternatingly compressing and decompressing a volume of said inlet chamber, an additive outlet chamber in fluid communication with the pipe portion, and a bypass channel between the inlet and outlet chambers.