The dilute chemical solution supply device 1 comprises: a dilute chemical solution preparation unit 2 that prepares a dilute chemical solution W1; a reservoir 3 for the prepared dilute chemical solution; a dilute chemical solution adjustment/supply mechanism 4 that supplies, as washing water W2, the dilute chemical solution W1 stored in the reservoir 3 to a plurality of single-wafer type washers 5A, 5B, and 5C; and a return mechanism that is connected to each of the single-wafer type washers 5A, 5B, and 5C and refluxes excess water from the single-wafer type washers to the reservoir 3. According to such a dilute chemical solution supply device, it is possible to accurately adjust the concentration of the solute of the dilute chemical solution and suppress the discharge of excess water, and the dilute chemical solution supply device is thus suitable for washing of wafers, etc.

An admixing system for fire-extinguishing installations is provided for generating a mixture (premix) of extinguishing medium and extinguishing medium additive by admixing an extinguishing medium additive to an extinguishing medium. The admixing system has a motor that can be driven by a flow of extinguishing medium, an admixing pump that is connected to the motor and serves for supplying the extinguishing medium additive to an extinguishing medium additive inlet line, an admixing line, and an extinguishing medium additive outlet line from which the extinguishing medium additive is admixed to the extinguishing medium in the admixing line. The admixing pump is a piston pump having multiple cylinders and at least two outputs connected to the cylinders. At least one first output, through which return flow is possible, can be switchably fluidically connected either to a return flow line through which the extinguishing medium additive flows back to the admixing pump, or to the extinguishing medium additive outlet line. If the extinguishing medium additive flows from the return-flow-compatible output back to the admixing pump, it is therefore not admixed to the extinguishing medium in the admixing line. Thus, the admixing rate can be changed simply by means of this switching.

The present invention provides a turntable color machine includes a rack, a controller is arranged on the rack, a wheel-type turntable that rotates vertically is arranged on the rack, a plurality of color paste bags are arranged on the wheel-type turntable, the color paste bags are evenly arranged along the circumference of the wheel-type turntable, the color paste bags are connected with a piston pump that is driven by a lifting mechanism to perform constant volume injection via a valve body, and a material receiving device that moves up and down is arranged at the middle of the wheel-type turntable. The piston pump is connected with the color paste bags to achieve volume injection, the wheel-type turntable drives the color paste bags to perform a circular motion, so that the color paste in the color paste bags are turned up and down to achieve an even mixing effect, no stirring device needs to be added, so that the manufacturing cost is reduced, the plunger valves are arranged in the color paste bags, the air in the color paste bags is extracted through the air suction cylinder to ensure that there is no air in the color paste bags, to prevent the color paste from deteriorating and to prolong the service life of the color paste.

Presented and described herein is a stroke system (1) for dosing a fluid from a container (3), comprising a piston pump (5) with a piston (7), so that a fluid can be dosed from a container (3) by displacement of the piston (7), and a temperature control device (29) for controlling the temperature of the fluid to be dosed by means of the stroke system (1).

A liquid dispensing pump (10) comprises: a first liquid storage cylinder (11), a second liquid storage cylinder (12), a first plunger (13) movably connected to the first liquid storage cylinder (11), a second plunger (14) movably connected to the second liquid storage cylinder (12), and a drive assembly (15) connected to the first plunger (13) and the second plunger (14). The first liquid storage cylinder (11) is provided with a first liquid entry and exit port (111). The second liquid storage cylinder (12) is provided with a second liquid entry and exit port (121). One end of the first plunger (13) is inserted into an internal cavity of the first liquid storage cylinder (11). One end of the second plunger (14) is inserted into an internal cavity of the second liquid storage cylinder (12). Further provided is a liquid dispensing device (100). The advantageous effect of the invention is: during each linear reciprocating movement cycle of the first plunger (13) and the second plunger (14), the first liquid storage cylinder (11) and the second liquid storage cylinder (12) discharge corresponding ingredients according to a pre-determined mixing ratio, and a mixed solution according to the pre-determined mixing ratio is obtained, thereby achieving precise mixing of different ingredients. In addition, the dispensing pump (10) discharges ingredients at a consistent ratio, thereby achieving uniform mixing without a dedicated mixer.

A dispensing system (2000), includes a container (900) containing a flowable base formulation (910) to be dispensed, an additive mixing device (2004), and an actuable pump engine (2002) which draws the flowable base formulation from the container and pumps it through the mixing device. The additive mixing device includes a body (2022) with an internal cavity (2052), an additive ingredient (2054) within the cavity, and a flow path/mixing chamber (2058) between an input and an output. With each pump of the device (2004) the additive ingredient is introduced into, and mixed with, a flow of the base formulation traveling through the mixing device. Multiple additive mixing devices (2004) may be interchangeable for different formulations, and the mixing devices may be refillable.

A feeding container includes a container body capable of accommodating contents, and a nozzle provided in an upper portion of the container body, and the contents accommodated in the container body is discharged from the nozzle. The nozzle extends in a horizontal direction, and pushes out the contents in the horizontal direction via a discharge hole opening in the horizontal direction, and a projection which projects in a direction intersecting an extending direction of the nozzle is provided on an extending side surface of the nozzle.

A leakproof gas-liquid mixing pump has a lower shell body, a pressing member and an upper shell body, the lower shell body has a liquid channel part and an outer shell part, the pressing member has a pressing part, a liquid guiding part and a first spring, the upper shell body surrounds the pressing member and is connected to the outer shell part and the liquid container. The leakproof gas-liquid mixing pump solves the problem that the gas-liquid mixing pump of the state of the art will leak when used upside down.

Metastable state spore incubation mixing systems are described. An example system includes a spores container to store spores, a nutrient container to store nutrients, a water supply line, a syringe tank, a syringe pump, an adjustable valve, a heater, and a controller. In a drawing phase of the system, a controller can cause the syringe pump and the adjustable valve to draw into the syringe tank a volume of spores, nutrients, and water to form a mixture. The controller causes the heater to heat the mixture for a period of time. In a dispensing phase of the system, the controller can cause the syringe pump to expel the mixture through the adjustable valve and into a water distribution system. The controller can direct the system through a number of other phases of operation.

A pump for high viscosity materials is mounted on a rectangular frame that fits through a standard doorway. Quick detach latches allow removal of the grate, the hopper or the console, including the control box, from the frame for safer and lighter transportation of the pump. Extendable handles facilitate lifting, moving, and storing the pump. Pivotable wheels with locking mechanisms allows the pump to be moved in any direction by a single user.