37results about How to "Empty completely" patented technology

A method for the production of a filled metering pump arrangement fills a product capable of flow into a film bag, which is accommodated in a container. The film bag and the container are closed by means of a pump that can be activated manually, which blocks a fluid connection between an outlet opening and the interior of the film bag, in the unstressed state, by means of at least one kick-back valve. Furthermore, the gas situated in the film bag is removed, at least approximately completely, by having at least one feed channel remain open in the container after it has been closed by the pump. By means of the at least one feed channel, a fluid that is under pressure is introduced into the container so that the film bag is compressed in the container and as a result, the gases situated in the film bag are ejected from it through the pump and / or through a bypass channel that circumvents it.

The invention discloses a stirring device with a detachable shaft sleeve. The stirring device comprises a stirring tank, a base and the shaft sleeve. Both the upper end and the lower end of the stirring tank are open. The base is provided with a circle of grooves corresponding to the bottom of the stirring tank, and a plurality of seal rings are arranged in the grooves. A plurality of clamp blocks are arranged on the outer side of the base and are corresponding to fixed handles arranged on the outer side of the bottom of the stirring tank, the fixed handles are connected with the outside wall of the stirring tank through a rotating shaft, and the base is fixed at the bottom of the stirring tank by being fixed in the fixed handles through the clamp blocks. The shaft sleeve is arranged on the base disposed in the stirring tank through a bolt, the bottom of a stirring shaft is located in the shaft sleeve, and a shock pad is arranged between the shaft sleeve and the base. The base disposed at the bottom of the stirring tank can be detached so that the shaft sleeve can be replaced conveniently and timely, and shaft sleeve replacement time and labor cost are saved. In addition, materials remained in the stirring tank can be cleaned thoroughly to be discharged thoroughly, and the weight of follow-up materials can be ensured.

This invention relates to a catheter (220), and in particular to a urinary catheter. A catheter comprises an elongate shaft (222) having a longitudinal drainage bore (224) for conveying fluid along the shaft; an elongate, tapered tip portion (228) extending from an end of the shaft, the tip portion having a distal end (230) furthest from the shaft; a drainage aperture (232) provided in the tip portion, said aperture being in fluid communication with said bore; and an inflatable balloon element (236) attached to said tip portion, the balloon element being configured such that, when fully inflated, the balloon element fully surrounds the distal end of the tip portion and extends along the tip portion to a point on an opposite side of the drainage aperture to said distal end, a surface of the balloon element including a depression (242) providing a passageway in fluid communication with the drainage aperture.

Provide an automatic suction and discharge control system for oil field mud cleaning, including power supply, switch, controller, engine, vacuum pump, collection tank, exhaust butterfly valve, tank cover and suction port, the exhaust butterfly valve and tank cover are located in the collection Tank installation; the tank cover is hingedly connected to the bottom of the collection tank and the tank cover is automatically opened or closed by the disappearance or generation of vacuum force; the power supply is electrically connected to the input end of the controller through the switch, and is electrically connected to the engine and exhaust through the output end of the controller. Air butterfly valve; wherein the engine is connected to a vacuum pump to drive the vacuum pump to run with the engine at rated power or at idle speed; the controller includes a suction mode and a discharge mode that are controlled alternately and continuously by a time relay. The invention solves the technical problem that the pumping and discharging cannot work continuously, which leads to the slow construction process of oil field mud pumping and discharging; the structure is simple; easy to realize; convenient, practical, safe and efficient.

A hand holdable pump spray apparatus is disclosed where the pump mechanism is in the hand holdable wand rather than in a spaced apart liquid container. The wand (14) may be held with one handle is extended with other hand. This creates a pressure differential which allows liquid to flow from the container, passed a check valve and into the wand. After filling, a biased spring provides a force against the liquid creating a higher pressure in the wand than ambient pressure. This closes the check valve. When an operator depresses an actuator, another valve opens allowing the liquid in the wand to be ejected through a nozzle.

The invention discloses an automatic nursing toilet system, which comprises a defecation receiving assembly, a toilet host assembly and a connecting pipeline. The defecation receiving assembly includes a drying device, a flushing device, a defecation receiving device and a detection device, the drying device and the flushing device are arranged above the defecation receiving assembly, and the detection device is arranged in the defecation receiving assembly; the toilet host assembly includes a host The body, collection and emptying unit, cleaning unit, drying positive pressure unit and control unit, the flushing device is connected with the cleaning unit through the cleaning pipeline, the defecation receiving assembly is connected with the collection and emptying unit through the sewage inlet pipeline, and the drying device is connected through the The drying pipeline is connected to the drying positive pressure unit, the collection and emptying unit is connected to the drying positive pressure unit through the positive pressure pipeline, and the collection and emptying unit is connected to the outside world through the sewage discharge pipeline, leading to the toilet or sewer, collecting The emptying unit communicates with the outside atmosphere through the exhaust pipeline, and the detection device, the cleaning unit and the drying positive pressure unit are respectively connected with the control unit through circuits.

The invention discloses a volume metering method, comprising the steps of generating negative pressure, emptying a volume metering pipe and metering volume, wherein the step of generating negative pressure is to generate negative pressure in a vacuum chamber through an emptying device; the step of emptying the volume metering pipe is to empty the liquid in the volume metering pipe under the action of the negative pressure of the vacuum chamber through the emptying device, and to keep the lower end of the volume metering pipe communicated with negative pressure all the time in the process of emptying the volume metering pipe; the step of metering volume is to meter the volume of the liquid to be metered through a volume metering device. The adoption of the volume metering method in the technical proposal of the invention can effectively prevent residual liquid from gathering on a pipe joint at the lower end of the volume metering pipe and even producing a liquid film in the prior art, thereby ensuring that the volume metering pipe is emptied more thoroughly, so as to avoid producing bubbles in the beginning stage of counting and effectively eliminate the bubbles having adverse effect on measurement results.

The invention relates to a method for starting a vertical forced circulation steam generator in a waste heat steam generator, wherein the forced circulation steam generator is supplied with feed water as working fluid and where the feed water first flows through a feed water preheater (1) and subsequently flow through an evaporator (2), where the feed water is at least partially evaporated, wherein the partially evaporated working fluid is fed to a water separation system (3), in which the non-evaporated working fluid is separated from and collected from the vaporized working fluid, wherein at least a portion of the non-vaporized working fluid collected in the water separation system (3) is sent short-range to the evaporator (2) and a specific volume starts, the remainder is automatically discharged from the water separation system (3). The invention also relates to a corresponding device for starting a vertical forced circulation steam generator.

The invention discloses a heat exchanger and a refrigeration system thereof. The heat exchanger has a medium inlet and a medium outlet. The heat exchanger includes: a heat exchanger body, and the heat exchanger body includes a plurality of heat exchange tubes arranged at intervals Drainage pipe, the upper part of the drainpipe is provided with a vent valve and the lower part is provided with a drain outlet, the outlet is provided with a switch to open or close the drainpipe, and the side wall of the drainpipe is provided with multiple Connecting pipes, multiple connecting pipes are arranged in parallel, each connecting pipe is a straight pipe, multiple connecting pipes are connected to multiple heat exchange tubes one by one, and the horizontal height of the end of each connecting pipe connected to the heat exchange tube is different The level below the end of the connecting pipe connected to the drainpipe. According to the heat exchanger of the present invention, when the cooling working medium needs to be discharged, the cooling working medium in the heat exchange tube of the heat exchanger can be completely emptied, thereby preventing the heat exchange tube from freezing.

The invention provides a food packaging airtightness detection method and its detection equipment, including a support bracket, a conveyor belt is installed inside the support bracket, a sealing disk is fixedly connected to the upper end surface of the conveyor belt, and the sealing disk includes a sealing disk body , a storage tray, a water storage hole, a sealing strip and a sealing groove, the storage tray is arranged in the middle of the main body of the sealing tray, the storage hole is embedded on one side of the edge of the upper end surface of the storage tray, and the sealing strip is installed on the On the periphery of the side end surface of the storage tray, the sealing groove is provided between the sealing rubber strip and the main body of the sealing disk, and the sealing groove is compatible with the sealing ring. The upper end surface of the support bracket is fixedly connected with a support column, and the support column The upper end of the vacuum module is fixedly connected with a vacuum module and a control module. This invention optimizes the working efficiency of the food packaging airtightness testing equipment and combines it with the conveying device to complete automatic testing, which is suitable for large-scale batch testing tasks.

For an in-line gasifier having a liquid cooled cooling jacket it is proposed to lead the inlet connectors and the outlet connectors for the cooling liquid through the side of the cylindrical pressure vessel, below the mounting flange for the vessel cover. This achieves a simplification in the mounting of the pressure vessel cover. Particular embodiments concern the bringing together of the upper ends and of the lower ends of several pipe runs coiled in parallel, in each case into a collector pipe which has a connector bush for cooling water.