32results about How to "Stable water supply pressure" patented technology

The invention discloses a mass concrete temperature intelligent monitoring and controlling device, which comprises a circulating pipeline formed by sequentially connecting a water supply device, a water distribution device, a concrete cooling system and a water return device, wherein the concrete cooling system is internally provided with a temperature monitoring device; and a centralized controlsystem which is respectively connected with the water supply device, the water distribution device, the concrete cooling system and the water return device. The concrete cooling system comprises a cooling water pipe arranged in the concrete. Usage of the device comprises a concrete cooling system setting step, a monitoring device setting step, a water distribution device setting step, a water supply device setting step, a water return device setting step, a mass concrete construction preparation step, a data acquisition step, a water supply pressure stabilization step, an alarm step, a hot water tank drainage step and a cold water tank water replenishing step. By the adoption of the mass concrete temperature intelligent monitoring and controlling device, water supply pressure can be stabilized, different water inlet temperatures and flow rates of each layer can be dynamically adjusted, temperature field change in the mass concrete can be developed according to a target of temperature control, and an alarm function is equipped, so that the problems that a temperature difference of each region of the mass concrete is too large and cracks are easy to generate are solved.

The invention provides a sweeping spraying type slope rainfall system composed of a rainfall support device, a rainfall sweeping spraying control device and a rainfall waterway device. The variable-slope sweeping spraying type slope rainfall test device is used for simulated rainfall of slopes with the different slope types outdoors or indoors in geotechnical engineering, is good in rainfall uniformity, stable in water supply pressure and good in controllability, can simulate all-day continuous rainfall in a natural state, regulate and control the rainfall intensity and achieve light-rain rainfall simulation, is provided with rainfall spray heads which have the stable vertical distance to the ground and can do reciprocating motion, can simultaneously output multiple ways of water flows with the uniform and stable water pressure and is stable and downward in spray head spraying direction, convenient to disassemble, assemble and transport, capable of adjusting the slope and suitable for the double-faced slope.

The invention discloses a full-automatic uninterrupted safe intelligent water supply system. The full-automatic uninterrupted safe intelligent water supply system comprises a remote control center, adual-power-supply control cabinet, pressure transmitters, a municipal pipe network, a water outlet pipeline, electric valves, a water tank, liquid level transmitters, a water pump assembly, an indicator light, a touch screen, an alarm and a water inlet pipeline, an electric control cabinet is wirelessly connected with the remote control center, the indicator light is installed on the front side ofthe electric control cabinet, the touch screen is installed on one side of a switch, the alarm is installed on the upper side of the touch screen, the electric control cabinet is electrically connected with the dual-power-supply control cabinet and a water tank, the plurality of liquid level transmitters are installed on the inner wall of the water tank, the water tank is connected with the waterinlet pipeline and internally provided with the water pump assembly, the water pump assembly is connected with the water outlet pipeline, the water outlet pipeline and the water inlet pipeline are provided with the pressure transmitters, the water outlet pipeline and the water inlet pipeline are provided with the electric valves, and the water inlet pipeline is connected with the municipal pipe network. According to the full-automatic uninterrupted safe intelligent water supply system, the structure is reasonable, full-automatic uninterrupted safe intelligent water supply is achieved, and theservice life of the intelligent water supply system is long.

The invention relates to the technical field of building construction equipment, and discloses a pressure-intensified water supply system for building construction. The pressure-intensified water supply system comprises a controller, a water storage tank, a booster pump, an energy storage voltage stabilization tank and a water-using end, wherein the water storage tank, the booster pump, the energystorage voltage stabilization tank and the water-using end are connected sequentially, the water storage tank is connected with water supply through a water inlet pipeline, the water inlet pipeline is provided with a storage pump, a pipeline between the energy storage voltage stabilization tank and the water-using end is provided with a pressure sensor, the storage pump, and the booster pump andthe pressure sensor are respectively connected with the controller. The pressure-intensified water supply system for building construction has the advantages that the stability of the pressure of water supply can be realized, the labor intensity is reduced, the energy consumption is reduced, and the production efficiency is improved. In addition, according to the pressure-intensified water supplysystem for building construction, closed water supply during the building construction avoids the problems of poor environment due to water leakage and the like.

The invention relates to an electrolysis water producing machine comprising a water source, a filter and an electrolysis cell, wherein the electrolysis cell is provided with an acid water outlet and a basic water outlet; a constant temperature heating device is arranged between the filter and the electrolysis cell, and the temperature of water passing through the constant temperature heating device from the filter is 35+/-5 DEG C. The invention has the advantages that the installing position of the constant temperature heating device decides that the heated water is common neutral water, and the heating process can not influence active indexes of an ORP value and the like of electrolyzed alkalescent drinking water at the water outlet; since two branches are adopted after constant temperature heating, both common neutral water and electrolyzed water can be provided, and particularly, the heating temperature of the water is controlled at 35+/-5 DEG C, which can ensure that the common neutral water or the electrolyzed water with moderate temperature can be obtained in four seasons; the water source of the electrolysis water producing machine can be tap water or can adopt a storage type water tank, and water in the water tank can not be polluted by bacteria after an ultraviolet bactericidal lamp is arranged in the storage type water tank, and a water pump can ensure a stable water supply pressure.

The invention discloses a towerless automatic water-supply vacuum tube well. The towerless automatic water-supply vacuum tube well comprises a drill hole, a well casing is arranged in the center of the drill hole, the well casing is composed of a water taking section and a pump mounting section, and the pump mounting section is internally provided with a water pumping device and a water supply pipe from bottom to top in sequence. The top of the well casing is provided with a flange, and a seal cover is arranged on the top of the flange; a pressure sensor is arranged on the water supply pipe; amaintenance chamber is arranged above the drill hole, and a cover plate is arranged on the top of the maintenance chamber. The structure is simple, the manufacturing cost is low, the structure that awell mouth is sealed is adopted, noxious substances and contaminants are effectively prevented from falling into a well, and potential safety hazards of drinking water are eliminated. Through the cooperation of the well casing and the water pumping device, the water taking section in the well is hermetically isolated from the pump mounting section, vacuum is formed in the water taking section, and the water yield of the tube well is increased; air in the well casing is compressed by water in the pump mounting section to form elastic pressure water, it is ensured that the water supply pressureand the water supply amount are stable, and the towerless automatic water-supply vacuum tube well has the advantages that the water is stably supplied, the water is safe, and the well occupies littlespace.

The invention discloses a water mycelium stimulation pressure-stabilizing water supplying system which comprises a high-pressure water storage tank, wherein the upper part of the high-pressure water storage tank is provided with a safety valve; the lower part of the high-pressure water storage tank is communicated with a sprinkler head and a check valve through a three-way pipe; the outer end of the check valve is communicated with a water supply electromagnetic valve; the outer end of the water supply electromagnetic valve is communicated with a backwater electromagnetic valve and a water pump through the three-way pipe; the outer end of the backwater electromagnetic valve is communicated with a water tank through a pipeline; the upper part of the high-pressure water storage tank is communicated with an exhaust electromagnetic valve and a pressure reducing valve through the three-way pipe; the outer end of the pressure reducing valve is communicated with a gas supply electromagnetic valve; and the outer end of the gas supply electromagnetic valve is communicated with a high-pressure gas supply pipe. The water mycelium stimulation voltage-stabilizing water supply system also comprises a high water level sensor and a low water level sensor which are installed on the upper part of the high-pressure water storage tank as well as a controller. The water mycelium stimulation pressure-stabilizing water supplying system can supply water continuously with stabilized pressure, and the water supplying pressure is stable and can be adjusted at random through the pressure reducing valve according to actual demands.

The invention discloses a complete constant-voltage frequency conversion water supply system. The system comprises a frequency conversion water pump, a first pipeline is fixedly connected to an outputend of the frequency conversion water pump, a first tee joint is fixedly connected to the end, away from one end of the frequency conversion water pump, of the first pipeline, an output pipeline is fixedly connected to the right end of the first tee joint, a second tee joint sleeves the outer surface of the output pipeline, a pressure gauge is fixedly connected to the upper end of the second teejoint, a fixed frequency water pump is arranged on the upper portion of the frequency conversion water pump, and a second pipeline is fixedly connected to an output end of the fixed frequency water pump. According to the complete constant-voltage frequency conversion water supply system, by arranging a frequency converter, the power supply frequency of the frequency conversion water pump can be adjusted conveniently according to a numerical value displayed on the pressure gauge, and the system is stable in pressure; by arranging a pressure reducing valve, under the action of a stop valve, thewater supply pressure of the system can be effectively adjusted when the frequency converter is damaged, and the water supply pressure of the water supply system can be stable all the time.

The invention discloses a secondary water supply automatic control system, which comprises a water supply monitoring system for measuring and detecting pressure and water supply flow of a municipal water inlet pipeline; a water tank monitoring system used for detecting water flow in the municipal water stored in the water tank; a water supply monitoring system used for carrying out pressure and early warning detection on the municipal water outlet pipeline; a power distribution monitoring system used for providing a power supply for the secondary water supply automatic control system and monitoring the power distribution system; and a parameter control system. The system is advantaged in that the PLC (Programmable Logic Controller) control technology and a frequency conversion control technology are adopted, and a PLC is used for carrying out monitoring and energy-saving control on a water supply system, water supply equipment, a power supply system and power supply equipment of a pump room; therefore, the system is advantaged in that the system has a strong energy storage function, enough adjusting volume and stable water supply pressure, and is simple to control, efficient and energy-saving, so normal operation of a tap water pipe network and reliability of subsequent water supply are ensured.

The invention provides big-flow pure water supplying equipment. The big-flow pure water supplying equipment is characterized by comprising a raw water booster pump, a pre-filter device, a precision filter, a high-pressure pump, an RO system and a pure water tank, and further comprises a loop pressure adjusting device, wherein the raw water booster pump, the pre-filter device, the precision filter,the high-pressure pump, the RO system and the pure water tank are connected in sequence from a raw water end to a water supply end, and the loop pressure adjusting device is used for adjusting watersupply pressure of the pure water tank. The invention further provides a pure water producing technology based on the big-flow pure water supplying equipment. According to the pure water producing technology, the loop pressure adjusting device is applied to make the water supplying pressure of the pure water tank and the pressure of the water supply end balanced, pipe pressure fluctuation caused by pure water supplying instability is lowered, the water supplying pressure is kept stable, and thus the water usage efficiency is improved.

The invention discloses a stable-pressure water supply system for water mycelium stimulation. The stable-pressure water supply system comprises a high-pressure water storage tank, wherein a relief valve is arranged at the upper end of the high-pressure water storage tank, the lower end of the high-pressure water storage tank communicates with a sprinkler head and a one-way valve through a three-way pipe, the outer end of the one-way valve communicates with a water supply electromagnetic valve, the outer end of the water supply electromagnetic valve communicates with a water return electromagnetic valve and a water pump through a three-way pipe, and the outer end of the water return electromagnetic valve communicates with a water tank through a pipeline; and the upper end of the high-pressure water storage tank communicates with an exhausting electromagnetic valve and a pressure relief valve through a three-way pipe, the outer end of the pressure relief valve communicates with a gas supply electromagnetic valve, and the outer end of the gas supply electromagnetic valve communicates with a high-pressure gas supply pipe. The stable-pressure water supply system further comprises a high-water-level sensor, a low-water-level sensor and a controller, wherein the high-water-level sensor and the low-water-level sensor are mounted at the upper part of the high-pressure water storage tank. According to the stable-pressure water supply system for water mycelium stimulation, continuous stable-pressure water supply can be achieved, and the water supply pressure is stable and can be randomly adjusted according to actual demands through the pressure relief valve.

The invention discloses a method for refining fine iron powder by using a low grade iron mine. The method comprises the following steps of crushing the iron ore the magnetic iron content of which is 2%-4% to obtain iron ore particles the particle sizes of which are less than or equal to 8mm, feeding the iron ore particles into a magnetic separator, performing dry separation by using the magnetic separator the magnetic flux of which is 3500 gausses-3800 gausses, feeding the water in the iron ore particles after dry separation by adopting a ball mill, carrying out ball-milling smash on the iron ore particles to form a sizing agent, carrying out wet separation on the 55 %-65 % of sizing agent which has the ball-milling fineness of -200 meshes by using the magnetic separator, carrying out wet separation by using the magnetic separator the magnetic flux of which is 1600 gausses-1800 gausses, pumping by using a vacuum pump, and enabling the water content of the iron ore sizing agent to be 8%-9% to obtain the fine iron powder the grade of which is 65%-67%. The method disclosed by the invention has the advantages that magnetic separation can be carried out on the iron ore the magnetic iron content of which is 2%-4%, the mineral separation cost and the production cost are reduced, an iron ore resource is fully utilized, and the grade of a product is guaranteed through the strict iron ore fineness and magnetic flux.

The invention provides a cold water supply device and system, belongs to the technical field of urban water supply, and solves the technical problems that in the prior art, stagnant water is easily formed on a water supply pipeline, and potential sanitation hazards are generated. The cold water supply device comprises a first booster pump, a water supply main pipeline, a first water supply branch, a second water supply branch and a first three-way piece, the head end of the first water supply branch, the head end of the second water supply branch and the water supply main pipeline are connected through the first three-way piece; the tail end of the first water supply branch is connected to the tail end of the second water supply branch to form a passage; a plurality of water consumption points are arranged on the first water supply branch; and the first booster pump is arranged on the water supply main pipeline, and when the water consumption points on the first water supply branch is opened, water flows through the first water supply branch and the second water supply branch from the water supply main pipeline through the first three-way piece and then flows to the water consumption points.

The invention belongs to the technical field of water conservancy and hydropower engineering geotechnical test methods, and discloses a method for testing vertical permeability characteristic of sand gravel damming material of an earth-rock dam. The method utilizes a permeameter to carry out a large-scale vertical permeability characteristic test on an original grading damming material, and can avoid the influence of a grain grading scale effect on the permeability characteristic of the damming material. A water head water supply pressurizing device is used for simulating an actual dam body water retaining working water head, on the basis of maintaining the original filling material gradation, the permeability characteristic of the hydropower station dam filling material under the action of the actual water head pressure is simulated, and a high-precision control assembly is matched, so that the original gradation permeability characteristic test of the filling material under different conditions can be realized. The permeability characteristic parameters of the sand gravel filling material of the earth-rock dam are measured, the evolution process of the permeability characteristic of the filling material is recorded and analyzed, more accurate, reliable and real technical parameters are provided for analysis and evaluation of the permeability stability of the dam body of a high-face-rock dam, and the economic benefits are remarkable.

The invention relates to a refrigerator unit control method and device and refrigeration equipment. The refrigerator unit control method comprises the steps of obtaining the actual liquid level of a water storage tank, comparing the actual liquid level of the water storage tank with a preset control liquid level, and controlling a refrigerator unit to execute a corresponding refrigerator control strategy according to the comparison result. Fine matching control of a water pump, a refrigerator and other equipment can be achieved through the liquid level change of the water storage tank, the stability of the water supply temperature and the water supply pressure is guaranteed, and efficient and stable operation and energy-saving operation of the system are achieved.