43results about How to "Large water supply" patented technology

The invention provides a refrigerator provided with an automatic ice maker using an ice tray making ice with favorable appearance, and capable of providing a suitable water supply amount even when the water supply amount is variable. The refrigerator is provided with the automatic ice maker carrying out ice making by supplying water in a water supply tank installed in a refrigeration chamber to the ice tray installed in a freezing chamber. In the ice tray, a longitudinal direction is partitioned into a plurality of rows by perpendicular partition walls, and each row partitioned by the perpendicular partition walls is partitioned into a plurality of ice making blocks by a lateral partition wall. A driving part is provided for turning the ice tray around a center axis between one row and another row of the plurality of partitioned rows, an outer wall of the ice making block is composed to abut at a plurality of portions on a circle formed by a turning locus of the ice tray turning around the center axis, and wall parts other than the outer wall of the ice making block are also shaped to match the outer wall shape to form the ice making block in a polygonal shape.

The invention provides a method for collecting water from seepage wells in arid and semi-arid areas, which includes the following steps: S1: digging a water collection shaft on a first-level terrace on one side of the river through impact drilling construction technology; S2: using horizontal steering drilling technology A number of radiating holes are constructed on the first terrace on the other side of the river. The radiating holes pass through the sand and gravel layer at the bottom of the river bed and are connected to the water collection shaft. Compared with the traditional seepage well, the method provided by the invention has a simple structure; the entire construction process is ground operation, which is highly safe; the radiant holes pass through different depths of the entire filter bed, and the water supply is large; through the adsorption and reaction of the natural filter bed The quality of the groundwater that finally enters the seepage well is good; according to the seasonal change of river water flow, different radiant holes are selected to work; after the filter hole on the filter tube in the radiant hole is blocked, the river water can be pumped for flushing, which is simple and convenient; the small diameter inside the radiant hole The third filter tube can be replaced after it is damaged to extend the service life of the seepage well.

The invention provides a seawater desalination system containing multiple distributed energy resources and an energy coupling system achieving multi-energy co-production. The seawater desalination system comprises a photovoltaic power generation system, a wind power generation system, a groove type solar thermal system, a low-temperature multiple-effect seawater desalination system, a seawater desalination thermal load system, an electrical energy storing system and a microgrid system; the microgrid system is connected with the photovoltaic power generation system, the wind power generation system, the groove type solar thermal system, the low-temperature multiple-effect seawater desalination system, the seawater desalination thermal load system and the electrical energy storing system separately, and the groove type solar thermal system is connected with the low-temperature multiple-effect seawater desalination system and the seawater desalination thermal load system separately. Photovoltaic power generation and wind power generation provides energy for a water pump circulation system of a photothermal solar energy thermal system, is a thermal cycle thermal mass heating source and provides sustained and stable energy for seawater desalination. The water supply quantity of seawater desalination equipment can be greatly increased by means of the photovoltaic power generation system, the solar thermal power generation system the wind power generation system. The energy coupling system achieving multi-energy co-production achieves co-production of electricity, heat and water.

The invention discloses an H-shaped shallow cavity dynamic / static-pressure mixed water lubrication radial bearing provided with annular communication grooves, and belongs to the field of bearing design and manufacturing. The H-shaped shallow cavity dynamic / static-pressure mixed water lubrication radial bearing comprises shaft diameters, H-shaped static-pressure cavities, throttling holes, shaft sleeves and the annular communication grooves. 4-6 H-shaped static-pressure cavities are uniformly arranged on the inner surface of a shaft sleeve in the peripheral direction; and the depths of the static-pressure cavities are 2-7.5 times of a radial gap. The adjacent H-shaped static-pressure cavities communicate through the annular communication grooves. The throttling holes of throttles are formedin the centers of peripheral transverse separators of the H-shaped static-pressure cavities; and lubrication water enters the H-shaped static-pressure cavities by the throttling holes through a watersupply device. The shaft diameters are sleeved in the shaft sleeves. The H-shaped shallow cavity dynamic / static-pressure mixed water lubrication radial bearing has excellent operation characteristicsand machining performances; through reduction of the depths of the static-pressure cavities and reduction of the difficulty and the cost of a bearing overlaying process, a dynamic-pressure effect ofa fluid is fully used for improving the bearing capacity of bearing and reducing the friction force of the bearing; multiple times of tool setting in the machining process can be prevented through theannular communication grooves, so that the relative position control precision of the static-pressure cavities in the machining process is improved, the water supply quantity is increased by a smallamplitude, and the temperature rise of the bearing is reduced.

The invention provides a preparation method for industrial high-temperature hot water. A hot water exchange circulation system, an air exchange heating circulation system and a high-temperature water heating pool for cleaning workpieces together achieve circulatory heating of high-temperature hot water, so that preparation of high-temperature hot water used for cleaning machine components in the machine manufacturing industry, the bearing manufacturing industry and other processing procedures is realized to solve the irresolvable technical problems existing in conventional steam boiler heating and electrical heating, energy saving and environmental protection are achieved, the manufacturing cost is lowered and the production quality and the environmental quality are improved.

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 an energy-saving DC variable frequency water pump and a control method thereof. The energy-saving DC variable frequency water pump comprises a DC brushless motor, a support, an impeller, a sensing assembly, a driving circuit board, a front end cover and an electrical box. The DC brushless motor is fixed on the support, and the impeller is arranged on a driving shaft of the DC brushless motor. The front end cover covers the impeller, and the sensing assembly is arranged in the DC brushless motor. The driving circuit board is arranged at the end face of the tail portion of the DC brushless motor, and the electrical box covers the driving circuit board. The energy-saving DC variable frequency water pump is ingenious and reasonable in structural design; the sensing assembly and the driving circuit board are designed in a split structure mode, so that assembling and maintaining are facilitated, the occupied space is effectively reduced, and the size is decreased. Meanwhile, the DC brushless motor is used for driving, so that the working efficiency is high, the water supply amount is large, and the size is small. Moreover, under the control of the driving circuit board, the energy-saving DC variable frequency water pump has the functions of overload protection, overcurrent protection, short-circuit protection and the like, and has the advantages of being capable of guaranteeing normal operation, good in working stability, capable of effectively prolonging the service life, and beneficial to wide application and popularization.

The invention relates to an ultrasonic flaw-detecting machine for steel pipes. The ultrasonic flaw-detecting machine for the steel pipes is characterized in that: a flaw detection host machine comprises a box body, and two adjustable three-wheel centering devices are arranged at an inlet and an outlet on two sides of the box body respectively; a hollow spindle is arranged in the box body in a rotatable way, and a measured steel pipe passes through the hollow spindle, the inlet and the outlet; and the middle part of the hollow spindle is provided with at least three probe adjustment devices, an ultrasonic probe is arranged on each probe adjustment device, a power generation device and a signal pre-processing device are arranged outside the hollow spindle, and the signal pre-processing device is connected with the ultrasonic probes, and transmits detection data to an ultrasonic flaw detector of a control system by using a wireless signal. A structural form that the steel pipes are linearly pushed and the ultrasonic probes rotate is adopted, so that the pushing speed of the steel pipes is improved, and the flaw detection efficiency is improved; and the centrifugal force produced by the high-speed rotation of the hollow spindle extrudes the air in a detection cavity, and water is supplied by using an interlayer between an inner sleeve and the hollow spindle, so that the water supply quantity is large, bubbles are reduced, and the detection accuracy is improved.