A polymer dispersion system for use in a hydraulic fracturing operation is disclosed. The system comprises (a) a tank assembly comprising an ingress, an egress, and an interior volume for collecting mother solution; (b) a first transfer pump coupled with the egress of the tank assembly: and (c) a second transfer pump coupled with the egress of the tank assembly. The first transfer pump is configured for coupling to a missile unit and a blender unit downstream thereof, but in fluid communication with only one of such units at any given time when coupled. A method of operating said polymer dispersion system is also disclosed.

A nitrous oxide gas mixer includes at least one mixing chamber having at least one nitrous oxide gas connection and at least one oxygen gas connection for introduction of oxygen gas and nitrous oxide gas and at least one flow rate controller, by which a volume flow of the two gases can be respectively adjusted separately and/or together. At least one O.sub.2 emergency button is mounted to the mixing chamber for emergency flooding the mixing chamber with oxygen gas and/or with ambient air.

The present invention discloses multifunctional blending equipment, including a clear water supply system, a spray system, a mixing system, a powder material storage and transport system, a mixing tank, a discharge system, and an electrical control system. A path of the clear water supply system is connected to the mixing tank by a tubing, and another path is connected to an input end of the spray system. An output end of the spray system is connected in parallel to more than two mixing systems. The quantity of the powder material storage and transport systems is equal to that of the mixing systems. Each powder material storage and transport system is correspondingly connected to one mixing system. Output ends of the more than two mixing systems are all connected to the mixing tank. An output end of the mixing tank is connected to the discharge system. The clear water supply system, the spray system, the mixing system, the powder material storage and transport system, the mixing tank, and the discharge system are controlled by the electrical control system. Beneficial effects: The blending equipment can implement various blending processes at the same time, is integrally skid mounted, and occupies a small area.

A microbubble device controller includes a box, and a first water pipe, a gas pipe and a bypass pipe installed in the box. The first water pipe is connected to a pump and has a first electromagnetic control valve to open or close the first water pipe. The gas pipe is connected to a gas source and the pump, and has a second electromagnetic control valve to open or close the gas pipe. The bypass pipe is connected to the first water pipe and has a pressure switch in telecommunication connection with the second electromagnetic control valve. The first electromagnetic control valve controls the first water pipe to be in the high flow state or a closed state to affect the bypass pipe. When the bypass pipe is in a high pressure state, the second electromagnetic control valve opens the gas pipe, or closes the gas pipe otherwise.

The present invention discloses multifunctional blending equipment, including a clear water supply system, an injection system, more than two mixing systems, more than two powder storage and delivery systems, a mixing tank, a discharge system, and an electrical control system. One path of the clear water supply system is piped into the mixing tank, and another path of the clear water supply system is connected to the input end of the infection system. An output end of the injection system is connected in parallel with more than two mixing systems. The number of the powder storage and delivery systems is equal to that of the mixing systems. Each powder storage and delivery system is correspondingly connected to one mixing system. Output ends of the more than two mixing systems are all connected into the mixing tank. An output end of the mixing tank is connected to the discharge system. The clear water supply system, the injection system, the mixing systems, the powder storage and delivery systems, the mixing tank, and the discharge system are controlled by the electrical control system. Beneficial effects: The blending equipment can implement various blending processes at the same time, which is integrally skid mounted, and occupies small space.

Systems and methods are described for dissolving ammonia gas in deionized water. The system includes a deionized water source and a gas mixing device including a first inlet for receiving ammonia gas, a second inlet for receiving a transfer gas, and a mixed gas outlet for outputting a gas mixture comprising the ammonia gas and the transfer gas. The system includes a contactor that receives the deionized water and the gas mixture and generates deionized water having ammonia gas dissolved therein. The system includes a sensor in fluid communication with at least one inlet of the contactor for measuring a flow rate of the deionized water, and a controller in communication with the sensor. The controller sets a flow rate of the ammonia gas based on the flow rate of the deionized water measured by the sensor, and a predetermined conductivity set point.

A mixing and dispensing apparatus to facilitate automatic mixing and dispensing of a semi-liquid form of a powder material when mixed with a fluid. The apparatus comprises a mechanism to hold and rotate a cartridge, an actuation device, and an injection unit. The cartridge consists of the powder material to be mixed with the fluid. The mechanism rotates the cartridge about a primary axis of rotation and a secondary axis of rotation to uniformly mix the powder material with the fluid. The actuation device performs a piercing stroke to pierce one end of the cartridge, and a dispensing stroke to dispense the semi-liquid form of the powder material through an opposing end of the cartridge. Further, the injection unit is disposed within the actuation device to inject a pre-determined quantity of fluid into the cartridge following piercing stroke.

A bio emulsion fuel manufacturing apparatus and method using vegetable oil is provided, including an oil tank unit configured to refine a vegetable oil introduced from an oil inlet by using a coagulant agent and a centrifugal decanter; a water tank unit configured to pretreat a water introduced from a water inlet by using a water tank catalyst; a mixed oil unit connected to the oil tank unit and the water tank unit, and configured to produce a mixed oil by using an inline mixer; and an ionization catalyst unit connected to the mixed oil unit and configured to convert the mixed oil to a bio emulsion fuel by using an ionization catalyst group.

The invention is an apparatus for preparing a chemical solution. A device of the present invention includes a housing including a lower chamber and an upper chamber and a dissolving bowl arranged at an interface of the lower chamber and upper chamber. The dissolving bowl includes a grid disposed within. Solid, undissolved chemical material rests on a top surface of the grid, such that the grid is able to maintain physical separation of the solid, undissolved chemical material from at least a bottom portion of the dissolving bowl. The device further includes a nozzle disposed within the dissolving bowl and positioned so as to direct flow of aqueous fluid into the dissolving bowl and towards the grid. The dissolving bowl further includes an outlet in fluid communication with the lower chamber to thereby allow for a prepared chemical solution to flow from the dissolving bowl into the lower chamber.

Systems and methods are described for supplying a rinsing liquid including ultrapure water and an ammonia gas. The system includes an ultrapure water source and a gas mixture source in fluid communication with a contactor. The gas mixture includes ammonia gas and a carrier gas. The system includes a control unit configured to adjust a flow rate of the ultrapure water source such that an operational pressure of the contactor remains below a pressure threshold. The system includes a compressor configured to remove a residual transfer gas out of the contactor. The contactor generates a rinsing liquid having ultrapure water and a concentration of the ammonia gas dissolved therein. The system includes a pump in fluid communication between the contactor and an outlet. The pump is configured to deliver the rinsing liquid having a gaseous partial pressure below the pressure threshold at the outlet.