30results about How to "Guaranteed normal pumping" patented technology

The invention relates to a movable concrete mixing pump truck integrating concrete production with pumping into a whole, comprising an automobile cassis, wherein an electric control chamber, a power supplying device, a concrete mixing and pumping device, a powder storing device, a powder conveying device, a powder weighting device, an aggregate continuous loading device, an aggregate weighting device, an aggregate conveying device, a clear water storing device and a clear water weighting device are arranged on the automobile chassis; the powder conveying device is connected with the powder storing device and the powder weighting device; the powder weighting device is connected with an inlet of a mixing main machine; the aggregate continuous loading device is connected with the aggregate weighting device; and the aggregate weighting device is connected with the inlet of the mixing main machine through the aggregate conveying device. According to the arm support type concrete mixing pump truck, the functions of continuous loading, raw material storing, weighting, concrete mixing, conveying, concrete pumping, and the like on the concrete as the raw material are integrated on freely-movable equipment; and the arm support type concrete mixing pump truck has a simple structure and is practical.

The invention discloses a multifunctional toilet. The multifunctional toilet comprises a water tank, a toilet base and a toilet cover, wherein a retainer ring with the upper end which is provided with an opening is arranged on the inner wall of the toilet base; a first pipeline is arranged at the lower part of the retainer ring and is connected to a urine recycling device; a urine storage cavity and a water cavity are formed in the urine recycling device; the urine storage cavity and the water cavity are connected with each other through a second pipeline; a reverse osmosis membrane is also arranged between the urine storage cavity and the water cavity; a pressing device is arranged in the urine storage cavity; a third pipeline is arranged in the water cavity and is used for discharging water. The multifunctional toilet has the beneficial effects that 1) the urine and the excrement can be conveniently separated; 2) the water in the urine can be reused, and water can be saved.

The invention relates to an air purifier with a water circulation function. The air purifier comprises a main body which is provided with air inlets and air outlets, wherein the main body is internally provided with an induced draft fan, an air inlet cavity, a purification cavity and an air outlet cavity; the purification cavity is internally provided with a water storage pipe; the upper end of the water storage pipe is provided with a water tank; a plurality of check blocks are arranged between the outer wall of the water storage pipe and the inner wall of the purification cavity; the plurality of check blocks are connected with the outer wall of the water storage pipe and the inner wall of the purification cavity alternately; the check blocks are respectively provided with water seepage holes in the parts at which the check blocks are connected with the outer wall of the water storage pipe, and the water in the water storage pipe can seep through the water seepage holes; a plurality of water seepage fibers are arranged at the bottom of the water tank in a penetrating way and extend and pass through the whole purification cavity; the bottom of the purification cavity is provided with a container; the container is internally provided with a filter spacer plate and is divided into an upper chamber and a lower chamber by the filter spacer plate; the wall of the lower chamber is provided with a water outlet; the main body is also provided with a water pump and a water pipe connected with the water pump; the water pipe is communicated with the water outlet and a water inlet formed in the water tank. The air purifier has good effects of removing dust and humidifying, and is capable of saving water.

The multifunctional water-saving air purifier includes a main body. The main body is provided with an air inlet and an air outlet. The inside of the main body is provided with a suction fan, an air inlet chamber, a purification chamber, and an air outlet chamber. It is characterized in that the The purification chamber is provided with an ultraviolet tube, which is provided with an ultraviolet lamp, and a stopper is provided between the outer wall of the ultraviolet tube and the inner wall of the purification chamber. The fiber extends through the entire clean chamber, and a container is arranged at the bottom of the clean chamber. The container is provided with a filter partition to divide the container into upper and lower chambers, the wall of the lower chamber is provided with a water outlet, the main body is also provided with a water pump and a water pipe connected with the water pump, and the water pipe communicates with the Water outlet and water inlet on the sink. The invention has good dust removal effect, can remove fine dust through water adsorption, and has small water consumption, thereby avoiding the waste of water resources.

The invention discloses a self-purification water well with a two-stage precipitation function. The self-purification water well comprises a seepage well, a pumping well and a water pump box, whereinthe seepage well is buried in a soil layer, the right side of the seepage well is provided with the pumping well, the top of the pumping well is arranged above the soil layer, the water pump box is supported by the top of a seepage well cover, a half of the water pump box is buried in the soil layer, multiple water overflow holes are formed in a position where the pumping well is connected with the side wall of the seepage well, a water overflow buoy is clamped in the inner wall of the seepage well in a sliding mode, a connecting rod is fixed on the bottom surface of the water overflow buoy, multiple sliding rods are horizontally fixed on a rod wall of the right side of the connecting rod, a blockage plate is sleeved on the rod wall of each sliding rod, a precipitating slant slope is fixedon a right side wall inside the pumping well, the bottom in the pumping well is provided with a pumping head which is fixed on the bottom surface of a pumping buoy, the top surface of the pumping buoy is connected with a threaded expansion pipe, and the threaded expansion pipe is connected with the pumping end of a water pump through a pumping pipe. The self-purification water well can be used for realizing the self-purification function on turbid well water.

The invention discloses a fiber-reinforced cement-based material (ECC) for 3D printing and its preparation, performance evaluation and application. The cement-based material uses sulphoaluminate cement produced from industrial solid waste as an early strength agent, and is added with polyethylene fibers with high tensile strength and modulus. It is introduced into 3D printed concrete for construction 3D printing, unreinforced construction of concrete structures or components or cast-in-place concrete structures, has the characteristics of strain strengthening and multi-slit cracking under the action of tension and bending, and has high ductility and high energy consumption capacity, which solves the problem of 3D printing plain concrete components The problem of low mechanical properties; the preparation method of the fiber-reinforced cement-based composite material is simple, low in cost, low-carbon and environmentally friendly, and has certain engineering demonstration significance and social benefits. The invention also provides a method for evaluating the 3D printing performance of the material, including a micro-slump test, a fluidity test and a rheological property test.

The invention discloses a large-aperture flow-controllable siphon device. The siphon device comprises a siphon pipeline, a control device and a water injecting pipe, wherein the siphon pipeline is in an inverted U-shape and comprises a water inlet pipe and a water outlet pipe, and the water outlet pipe is longer than the water inlet pipe, so that the pipe opening of the water outlet pipe is lower than the pipe opening of the water inlet pipe; the control device comprises opening sealing rubber valves and operation rods which are connected with each other, and the opening sealing rubber valves used for sealing the pipe openings of the siphon pipeline and controlling the water flow of the water inlet pipe and the water flow of the water outlet pipe are located at two ports of the siphon pipeline; one operation rod is arranged on each of the water outlet pipe side and the water inlet pipe side of the siphon pipeline, opening and closing of the opening sealing rubber valves are controlled by the aid of lever structures, and the water flow of the water inlet pipe and the water flow of the water outlet pipe are adjusted; and the water injecting pipe comprises a ball valve and a water filling pipe, one end of the ball valve is connected with the water filling pipe, the other end of the ball valve is in seamless connection with a transverse end of the siphon pipeline, and the connection part is close to the water inlet pipe section of the siphon pipeline. The large-aperture flow-controllable siphon device adopting the structure has the advantages of being power-free, large in flow, simple to operate, low in production cost and low in labor intensity of workers.

The invention discloses a hydrophilic slump loss resistant mineral composite fiber granule and a preparation method thereof. The method comprises the steps of: 1) mixing hydrophilic mineral composite fiber with lignosulfonate to form a mixture; and 2) making the mixture of the hydrophilic mineral composite fiber and the lignosulfonate into mixture particles, thus obtaining the hydrophilic slump loss resistant mineral composite fiber granule. According to the hydrophilic slump loss resistant mineral composite fiber granule and the preparation method thereof provided by the invention, the composite fiber granule provided by the invention is added to conduct concrete stirring, not only effectively restrains the generation of concrete and mortar cracks, but also has the effects of toughening, reinforcing, and improvement of concrete durability, and can effectively retard the slump loss of concrete, thus guaranteeing the concrete workability. At the same time, the granule is convenient to realize automation of packaging and use and adding. The hydrophilic mineral composite fiber granule is dispersed among concrete coarse aggregate to ensure the dispersion effect in concrete.

The invention belongs to the field of pumping unit equipment in oil fields, and in particular relates to a pumping unit well fixed liquid level swabbing servo device using electric parameter curve analysis technology, and the pumping unit structure includes a displacement sensor, a base, a beam, a bracket, and a main donkey. head, auxiliary donkey head, counterweight donkey head, speed regulating motor, flywheel, slide seat, slide plate, stroke adjustment assembly and counterweight assembly; the base is fixedly installed on the ground, and the main donkey head and counterweight donkey head are fixedly installed on Describe the two ends of the traveling beam, and the auxiliary donkey head is fixedly installed on the traveling beam. According to the electric parameter curve data obtained by real-time detection, combined with the structural parameters of the pumping unit, the present invention establishes the dynamic mathematical model of the suspension point indicator diagram of the pumping unit, calculates and analyzes the change of the liquid level of the pumping unit well, and automatically adjusts the pumping unit. Stroke times, so as to achieve the fixed liquid level of the pumping well. Combining with the stroke rate adjustment method based on the servo speed regulation technology in the prior art, the adjustment accuracy of the pumping speed is higher and continuous adjustment can be realized.

In a pump element (10) of a hydraulic unit for a vehicle brake system for delivering brake fluid by means of a piston (20) mounted so as to reciprocate in a cylinder (12), the piston (20) has a first and a second active surface (26, 28) of which the first active surface (26) causes brake fluid to be delivered from the cylinder (12) during the forward movement of the piston (20) and the second active surface causes brake fluid to be delivered from the cylinder (12) during the backward movement of the piston (20).