72results about How to "Improve water supply efficiency" patented technology

The invention discloses a method and a device for controlling a water heater and belongs to the technical field of smart home. The method comprises the following steps of acquiring biological information of a current user; when the biological information of the current user is matched with that of a target user, acquiring water draining configuration parameters of the target user, wherein the water draining configuration parameters comprise water draining temperature configuration parameters and / or water draining amount configuration parameters; controlling an intelligent water heater to supply water according to the water draining configuration parameters of the target user. According to the method and the device disclosed by the invention, the problem that the user presses function keys on a remote controller for multiple times, so the operation is troublesome in the relevant art is solved, the fact that user identification is performed according to biological information is realized, and then the corresponding water draining configuration parameters can be rapidly obtained, the operation of the user is fully simplified and the water supply efficiency is improved.

The invention provides an air intake and release valve which prevents burglary and can effectively eliminate water hammer produced when air is discharged by a water supply pipeline. The air intake and release valve comprises a mass air intake and release valve, a water hammer prevention device and a trace air intake and release valve. The trace air intake and release valve is connected with a shell of the mass air intake and release valve; the water hammer prevention device is connected with the shell of the mass air intake and release valve; and the water hammer prevention device and the trace air intake and release valve are arranged in a protective cover of the circumstance of the shell of the mass air intake and release valve. The air intake and release valve has the advantages that: the air intake and release valve with the structure can limit the air release speed when the pipeline is filled with water and releases air quickly, so that an air bag is formed in the pipeline to buffer the compact of water on the pipeline; and external parts of a valve body are effectively prevented from being stolen because the external parts are embedded in the valve body and an attachment bolt is plugged; and an air layer is reserved above a main floating ball to prevent a sealing surface from being contacted with water, eliminate the phenomenon that water is leaked due to impurity blockage, and can effectively guarantee that the sealing surface is prevented from being frozen at an extremely low temperature, the main floating ball can leave the sealing surface and vacuum is not produced in the pipeline.

Disclosed is a secondary water supply system peak shifting water replenishing dispatching management platform. A plurality of secondary water supply systems are each provided with a set of data collecting and emitting control equipment, each data collecting and emitting control equipment comprises a water pressure switch, a single-chip microcomputer module, an edge calculating control unit, and anelectromagnetic water valve installed on a water tank and connected with a municipal tap water pipe network pipeline; a manager is provided with an upper computer, a cloud platform data receiving system, a big data analyzing unit, a production and decision dispatching unit, an asset distribution database unit, an open platform data interface, a role management unit and an application unit are installed inside the upper computer, the manager is further provided with a visualized video and data monitoring platform, the application unit comprises a manager mobile phone side APP and a computer side program. It is ensured that water inside the water tank is sufficiently recycled, water is sufficiently supplemented to the water tank at a non-peak period, the water quality is improved, water generated by drainage is reduced, and energy consumption generated by drainage is lowered, and the whole water consumption safety of residents is improved through maintenance, cleaning and management ofthe water tank.

The invention discloses an intelligent water affair management system for villages and towns based on cloud computing. The intelligent water affair management system comprises a cloud computing centermodule, a water source area management module, a water plant intelligent management module, a pipe network monitoring module, a dispatching and commanding module, a user management module, a remote monitoring module and a fault maintenance module. According to the invention, collecting, storing and mining are performed on data generated by all the sub-modules through a cloud computing center, information islands between different modules in the water supply process are avoided, centralized management is conducted on scattered rural water plants, information sharing is achieved, and the watersupply efficiency is improved.

The invention discloses a non-negative-pressure pipe network pressure-superposed flow stabilization and pressure dividing water supply device. The non-negative-pressure pipe network pressure-superposed flow stabilization and pressure dividing water supply device is mainly composed of a flow stabilization compensator, a non-negative-pressure controller, a water shortage signal transmitter, first water pumps, a second water pump, third water pumps, a first flow detecting device, a second flow detecting device, a first air pressure water tank, a second air pressure water tank and a control cabinet. The water shortage signal transmitter is used for protecting the first water pumps and the third water pumps, and one to four first water pumps and third water pumps are arranged in parallel; and one second water pump is selected in cooperation with the first water pumps and the third water pumps, the flow of the second water pump is 1 / 4 to 1 / 3 of the flow of the third water pumps, and the lift of the second water pump is 85% to 100% of a difference of the lift of the first water pumps and the lift of the third water pumps. The non-negative-pressure pipe network pressure-superposed flow stabilization and pressure dividing water supply device has the beneficial effects that sectional and pressure dividing water supply can be carried out on high-rise buildings; and the non-negative-pressure pipe network pressure-superposed flow stabilization and pressure dividing water supply device is small in occupied land, high in water supply efficiency, good in energy saving, sanitary in water quality, free of pollution, long in service life and complete in protection function, and saving the investment.

The invention provides a piecewise linear dispatching method facing a water diversion system of a multi-source cascade pump station. By utilizing the parameters, such as the available water supply quantity of a reservoir, the water demand of each water user in the system, the design flow of the pump station, the maximum and minimum reservoir capacity, the maximum discharge capacity, etc., the water distribution rules of each water user and the operation rules of the pump station and reservoir in the system are optimized, and finally a dispatch rule is obtained, water consumption of the water users and the water diversion quantity of the pumping stations and reservoir are generated as the bases for guiding the operation of the system. The method of the present invention overcomes the unnecessary energy consumption of the pump station caused by the experience in the traditional water transfer process, gives priority to the use of the local water source and the short-distance water source, improves the water diversion and water supply efficiency, has clear theoretical significance, is simple and easy to operate, and is easy to be applied in the actual water transfer.

The invention discloses a water supply device for corn cultivation, and relates to the technical field of agricultural equipment. Wheel axles are rotationally arranged on the left side and the right side of the bottom face of a frame through axle seats, and traveling wheels are fixedly connected to the front ends and the rear ends of the two wheel axles; a push handle is fixedly connected to the left side of the upper side face of the frame, an electric cabinet is fixedly arranged at the position, on the right side of the push handle, of the frame; a box body is fixedly arranged at the position, on the right side of the electric cabinet, of the frame, the box body is of a hollow structure with an opening in the upper side, a box cover is rotationally arranged at the opening end at the upper side of the box body through hinges, and the front side of the box cover is fixedly connected with the front side wall of the box body through a plurality of hasps; and a partition plate is vertically and fixedly arranged inside the box body, and a pesticide mixing and adding mechanism is arranged on the left side of the partition plate. Multi-ridge parallel water supply among ridges can be conveniently carried out, so that the water supply efficiency is improved; and meanwhile, pesticide can be conveniently added into a supplied water source, and the operation is simple.

The invention discloses a peak shifting water supplementing scheduling management platform for sa econdary water supply system, which comprises an upper computer and a water volume acquisition device.The water volume acquisition device comprises: a water pressure switch used for acquiring and transmitting data signals; a single-chip microcomputer module which is used for receiving the data signals and transmitting the signals; a control unit which is used for receiving the processed signal, sending the signal and controlling the opening and closing of an electromagnetic valve; the electromagnetic valve which is used for controlling water inlet and water outlet of the water tank. The upper computer comprises: a video monitoring platform which is used for monitoring water quantity and waterpressure data of secondary water supply system water tanks in a plurality of residence communities in real time; a cloud platform which is used for storing the received water pressure and water quantity data of the water tanks of the secondary water supply systems in different residential communities in a classified manner; an analysis unit which is used for analyzing and calculating the stored data and transmitting the analyzed and calculated data; and a scheduling unit which is used for sending a control instruction signal. The defects of water storage of a water tank of an existing secondary water supply system are overcome.

The invention discloses a fire-fighting water cannon capable of storing a water hose. The fire-fighting water cannon comprises a chassis, wherein the upper end surface of the chassis is rotatably provided with a central column, the central column is internally provided with a water passing cavity with an upward opening, the outer circular surface of the central column is wound with a water hose, one end, which is wound inside, of the water hose is fixedly connected to the left end of the outer circular surface of the central column, the left wall of the water passing cavity communicates with awater inlet communicating with the water hose, and a joint which can be installed with a fire hydrant is fixedly arranged at one end, which is wound at the outermost side, of the water hose. According to the water cannon, through movement of rollers, the water cannon can be rapidly moved to an injection point, meanwhile, the water cannon itself is fixedly connected with the water hose, the splicing work of the water hose is reduced, the water supply efficiency is improved, meanwhile, when the water hose is stored, the fire-fighting water cannon can be pushed to move along the laying path of the water hose, the water hose is wound through rolling of the rollers, dragging force on the water hose can be reduced, the abrasion of the water hose can be reduced, and the working intensity of thewater hose storage is reduced.

The invention relates to the technical field of water supply equipment and especially relates to a high-rise bidirectional constant-pressure water supply device which comprises a steady flow compensator, wherein a valve, a water supply pump and a check valve are serially connected with the steady flow compensator; a pressure stabilizing jar is connected with the check valve; the quantity of the pressure stabilizing jar is at least one. The high-rise bidirectional constant-pressure water supply device has the advantages that the water supply efficiency is effectively increased, the normal water usage of the user is ensured under the condition of any variable water usage, the energy-saving effect is obvious and huge economic and social benefits are generated.

The invention provides fully-enclosed flow-stabilized and pressure-superposed energy storage water supply equipment. According to the fully-enclosed flow-stabilized and pressure-superposed energy storage water supply equipment, the problem that a common pressure-superposed water supply product has no water storage capacity or has extremely small water storage capacity is solved, and dual functionsof water storage and energy storage are introduced into a pressure-superposed water supply system; the water contention degree of a plurality of secondary water supply stations to a municipal primarywater supply pipe network is greatly reduced, the reactive power loss of water supply is greatly eliminated, the water supply efficiency is improved, and continuous, safe and high-quality water supply for users can still be realized under the condition that the flow quantity and pressure of a municipal tap water pipe network cannot meet user requirements continuously; even under the condition that the water supply of the municipal tap water pipe network is completely cut off, the water supply still can continue for a number of minutes to a number of hours; positive pressure full enclosing ofwater storage facilities can be realized, the purposes of chlorine maintaining, self cleaning and no cleaning are achieved, and the fully-enclosed sanitary safety requirement in the Chinese water supply standard is fully met; and the blank that no secondary water supply products of other forms exists between pressure-superposed water supply and water tank (pool) water storage water supply in the secondary water supply products for many years is filled up.

The invention discloses a chilled water circulating supplying system, which comprises a chilled water supplying system and a cooling water supplying system. The chilled water supplying system comprises a heat exchange device, an adopted water treating device, a test area, a water feeding header pipe, a water collector and a water divider; the heat exchange device comprises an evaporator, a compressor and a condenser, and the adopted water treating device comprises an automatic medicine adding device, a constant pressure water supplementing device and a softened water treating device; one end of a water collecting area is connected to the water divider through a bypass pipeline, and the other end of the water collecting area is connected to the automatic medicine adding device; the automatic medicine adding device is connected to the softened water treating device through a pipeline, and the softened water treating device is connected to the constant pressure water supplementing device;the constant pressure water supplementing device is connected back to the water collector; and the cooling water circulating supplying system comprises a water pump, a cooling water divider, a cooling water collector, a cooling water constant pressure water supplementing device, a cooling water automatic medicine adding device and a cooling water softened water treating device. The chilled waterand cooling water circulating supplying system is simplified in structure, and the water supplying efficiency is improved effectively.

The invention relates to the technical field of secondary water supply equipment and discloses energy-saving environment-friendly secondary water supply equipment which comprises a negative-pressure-free water supply tank and a water tank. A tap water pipe is communicated on the water tank, a first pipeline is communicated on the water tank and communicated with the negative-pressure-free water supply tank, the first pipeline and the water tank are mounted with first valves, the first pipeline and the negative-pressure-free water supply tank are mounted with second valves, a second pipeline iscommunicated on the first pipeline, a pressurizing water pump unit is arranged between the first pipeline and the second pipeline, the first pipeline and the second pipeline are mounted with third valves, and the second pipeline is communicated with a user pipeline; the equipment further comprises a control cabinet which is electrically connected with the first valves, the second valves, the third valves and the pressurizing water pump unit, and a purifying mechanism is arranged on the tap water pipe. The equipment can clean and purify water entering the equipment before water storage.

The invention belongs to the water supply field and particularly relates to a self-partitioning pressure-superposed water supply system for a high-rise building and a water supply method. The technical scheme is as follows: the high-rise building is divided into a low-pressure region and a high-pressure region or a low-pressure region, a high-pressure region and a double-high-pressure region according to different water supply pressures required by floors with different heights; a water storage tank is in pipe connection with the low-pressure region through a water pump group I, is in pipe connection with the high-pressure region through a water pump group II and / or is in pipe connection with the double-high-pressure region through a water pump group III, effluent sides of the water pump group I and the water pump group II are in pipe connection through a small flow water pump I, effluent sides of the water pump group I and the water pump group III are in pipe connection through a small flow water pump II, and / or effluent sides of the water pump group II and the water pump group III are in pipe connection through a small flow water pump III. The self-partitioning pressure-superposed water supply system meets the water requirements of users of middle and high-rise buildings, meanwhile, the power consumption of the whole water supply system is reduced, the energy conservation andemission reduction purposes are achieved, and the water supply system can be widely applied to the construction and transformation of a water supply system for middle and high-rise buildings.

The invention provides a water supply method and a water supply system. The method comprises the following steps: opening a first valve in accordance with a received first opening signal, and leading cooling water of a water pump to the water pump; when the flow rate of the cooling water reaches a preset flow rate, receiving a second opening signal, and opening a second valve to a preset first angle range in accordance with the second opening signal; receiving a third opening signal, and turning on the water pump within a first preset time range in accordance with the third opening signal; receiving a fourth opening signal, and opening the second valve to a second preset angle in accordance with the fourth opening signal; and when a water supply pipeline reaches a preset pressure range, receiving a first closing signal, and closing the first valve in accordance with a first closing signal. Therefore, the water supply method and the water supply system, in water supply and drainage works, can achieve remote automatic control over opening and closing of the water pump, so that the labor intensity and error operation risks of operators are reduced and water supply efficiency is improved.

The invention provides a quantitative and constant-temperature irrigation device for flow-storage separation. The quantitative and constant-temperature irrigation device comprises a solar water heater, a treatment water tank, a water storage tank, a main electric valve and an auxiliary electric valve. The interior of the treatment water tank is provided with a solar coil pipe. The treatment water tank is connected with the water storage tank through a hot water conveying pipeline. The water storage tank is connected with the water storage tank through a cold water conveying pipeline. The right side of the water storage tank is connected with a water outlet pipeline, on which the main electric valve is arranged. The right side of the water storage tank is connected with a drainage soft pipe, on which the auxiliary electric valve is arranged. Compared with the prior art, the quantitative and constant-temperature irrigation device for flow-storage separation has following beneficial effects: automatic control over fixed quantity and water consumption crop irrigation are achieved; and water waste during management caused by improper management in water-saving irrigation projects such as sprinkling irrigation and micro-irrigation is avoided.

The invention discloses a control method for a feed water pump steam turbine. The control method comprises the steps of S1, sending a command of expanding a servo valve and controlling a low pressureside regulating valve to open wide according to the deviation between the target speed and actual speed of a steam turbine through a controller; S2, detecting the low pressure side inlet steam pressure parameter of the feed water pump steam turbine through a pressure transmitter, and transmitting the determined low pressure side inlet steam pressure parameter of the steam turbine to the controller; S3, judging whether the low pressure side inlet steam pressure is matched with the target speed of the steam turbine or not through the controller according to the low pressure side inlet steam pressure of steam turbine from the pressure transmitter, and if not, controlling a high pressure side regulating valve to open and enable the low pressure side inlet steam pressure to adapt to the targetspeed of the steam turbine, and enable the speed of the feed water pump steam turbine to stabilize at the target speed. Correspondingly, the invention further discloses a control system for the feed water pump steam turbine. By using the control method and system, the control is more practical; when the working conditions are changed, the high and low pressure side regulating valves of the feed water pump steam turbine respond quickly, and the speed response capability is improved.

The invention discloses a constant-pressure grouting-water supply pneumatic combined servo control system for a test. The system comprises a constant-pressure double-liquid grouting pneumatic servo control system, a constant-pressure water supply pneumatic servo control system and a support. The constant-pressure double-liquid grouting pneumatic servo control system comprises a grout storage cavity, a grout preparation cavity and a pneumatic servo control unit. The constant-pressure water supply pneumatic servo control system comprises a water storage cavity, a water preparation cavity and a pneumatic servo control unit. The grout storage cavity, the grout preparation cavity, the water storage cavity and the water preparation cavity are formed in a whole structure and the whole structure is installed on the support. The grout and liquid matching ratio, grouting pressure and pore water pressure can be adjusted in the test according to test requirements, and a constant-pressure water supply pneumatic servo control device is used in cooperation, so that the combined servo control system is operated stably and efficiently, and the scientificity and the preciseness of the indoor grouting test are guaranteed.

The invention discloses a variable quantity and pressure water supply device with high order energy storage and intelligent perception. The variable quantity and pressure water supply devicecomprisesa diaphragmtype air pressure tank, an electric control cabinet, a water supply main pipe, and a water supply branch pipe;the diaphragmtype air pressure tank is mountedat the top end of a building,thewater inlet end of the water supply main pipe is located on the ground, the water outlet end of the water supply main pipe is connected with the diaphragm type air pressure tank,a main water pump is arranged on the water supply main pipe,both ends of the water supply branch pipe are connected to both ends of the main water pump,an auxiliary water pump is arranged on the water supply branch pipe,aflowmeter, a water inlet pressure sensor, a water outlet pressure sensor are arranged on the water supply main pipe, the flowmeter, the water inlet pressure sensor, and the water outlet pressure sensor are all connected with the electric control cabinet. According to the variable quantity and pressure water supply device,the diaphragmtype air pressure tank is directly mounted on a roof of a high-rise building, thus secondary pollution of water quality is avoided, water pressure of users on the top floor is increased, the energy storage efficiency is improved, water quality safety is ensured, and the operation efficiencyof the water supply device is improved.

The invention discloses a water drinking device for animal husbandry, and relates to the technical field of animal husbandry, the water drinking device comprises a water trough for animals to drink water, the front end of the water trough is inclined downwards, a water level sensor is arranged in the water trough, and the bottom of the front end is connected with a drain pipe; the top of the water supply tank is connected with a water inlet pipe, the water inlet pipe is provided with a water inlet electromagnetic valve, the bottom of the water supply tank is provided with a water supply pipe, the water supply pipe is communicated with the rear end of the water trough, and the water supply pipe is provided with a water supply electromagnetic valve; the drinking trough and the water supply tank are mounted on the base; the drainage pipe is communicated with the top of the water treatment tank, and a water return pipe is arranged at the bottom of the water treatment tank and communicated with the water supply tank; the controller is used for controlling all the electrical elements, and the controller is further connected with a timer. Water can be automatically supplied to the drinking trough in a timed mode, time and labor are saved, the water supply efficiency is improved, water which is not drunk up can be recycled, and waste is reduced.

The invention discloses an agricultural irrigation Internet of Things automatic control system based on a 5G communication network. The agricultural irrigation Internet of Things automatic control system comprises a well group water supply plot metering control unit, a plurality of plot metering control units and a plurality of water pump switch control units; agricultural well water supply efficiency is improved through well group water supply linkage control, well group electricity consumption is integrally reduced, and the number of agricultural wells is reduced; through linkage control of well group water supply and plot irrigation, parallel irrigation of multiple plots is achieved, and the irrigation efficiency of crops is improved; through the high-speed transmission advantage of the 5G communication network, the precision of an agricultural well irrigation metering mode from metering according to wells to metering according to land parcels is improved; through well group control, the pump opening number of a motor-pumped well is determined according to the simultaneous irrigation area, the water supply efficiency is improved, and the total quantity demand of agricultural wells within a certain range is reduced; by constructing the agricultural irrigation Internet of Things automatic control system based on the 5G communication network, quantitative irrigation, regular irrigation and on-demand irrigation are realized, and water resources, manpower and material resources are saved.

The invention relates to the technical field of water supply equipment, in particular to a two-state protection device. The two-state protection device comprises a steady flow compensator and a water supply pump, wherein the water supply pump is connected with the steady flow compensator through a water delivery hose and is divided into a water pump I and a water pump II; the water pump I is connected with the water pump II in parallel; a manual valve is connected in series on the side, close to the steady flow compensator, of the water supply pump, and a check valve is connected in series on the other side; the water supply pump is connected in parallel with a two-state protector; a check valve is connected in series on one side of the two-state protector. According to the improved two-state protection device, water is not stopped under any condition, so normal water utilization of a user is effectively guaranteed, the water supply efficiency is also effectively improved, and great economic and social benefit is produced.

The invention relates to a water supply system for ship fire fighting. The water supply system comprises a centrifugal pump and is characterized by further comprising a water supply tank, a balanced reservoir and a communicating pipe, a water passing pipe is connected between a water outlet pipe of the centrifugal pump and the water supply tank, the communicating pipe is arranged between a water inlet pipe of the centrifugal pump and the balanced reservoir, a first switch assembly is arranged on the communicating pipe, and a second switch assembly is arranged on the water inlet pipe of the centrifugal pump. The water supply efficiency can be improved.

The invention discloses an energy-saving and emission-reducing cutting cooling liquid and cleaning liquid comprehensive utilizing system and a using method of the system. The energy-saving and emission-reducing cutting cooling liquid and cleaning liquid comprehensive utilizing system comprises an alkaline ion water supplying device, a cleaning machine water tank, and a cleaning liquid treating device and a treatment liquid recovery water tank, wherein the alkaline ion water supplying device is connected with the cleaning machine water tank through a first water supplying pipeline; the cleaningmachine water tank is connected with the cleaning liquid treating device through a first water guide pipeline; water treated by the cleaning liquid treating device enters the treatment liquid recovery water tank through a second water guide pipeline; the treatment liquid recovery water tank is connected with the cleaning machine water tank through a second water supplying pipeline. In the scheme,alkaline ion water is adopted instead of ordinary tap water, so that the problems of rust and corrosion of workpieces easily caused by chloride ions in the tap water are solved effectively, and the workpiece quality is ensured; the used cleaning liquid can be recycled in combination with wastewater treatment, recycling and circulation pipelines, so that the water utilization rate is improved, theconsumption of the alkaline ion water is lowered, the wastewater discharge amount is reduced, the cleaning water cost is lowered, and the environmental friendliness is improved.

The invention discloses a floating type concentrated heat saline-water desalination device, which mainly comprise an upper wall, side wall air bags, a bottom wall, float bowl air bags and a central hose, wherein the device can keep afloat after the side wall air bags and the float bowl air bags are inflated through the central hose; the float bowl air bags surround to form a plurality of regularly distributed evaporation units; each evaporation unit is in a circular truncated cone shape; the bottom parts of the evaporation units are the bottom wall; table surfaces of the evaporation units are hollowed; convex lenses one-to-one corresponding to the evaporation units are arranged on the upper wall; a principal optic axis of each convex lens points to the corresponding evaporation unit, so that the evaporation of saline water in the evaporation units is accelerated; containers formed by the float bowl air bags and the side wall air bags and containers formed between the float bowl air bags are fresh water collecting chambers. The floating type concentrated heat saline-water desalination device provided by the invention is used for desalinating saline-alkaline water, is simple in structure, not easy to damage, low in cost, high in efficiency, and clean and environmental-friendly, can be used in inland and coastal water-deficient region, and has a wide application prospect.

The invention discloses a heating bin structure and integrated water heater equipment, and relates to the technical field of water circulation. The heating bin structure comprises a heating device and a bin body arranged on fixing supports. The bin body is obliquely arranged with the front portion being higher than the rear portion. The heating device is arranged in the bin body. The position, close to the front end, of an upper oblique plate protrudes upwards to form a hollow boss. A left partition plate and a right partition plate are arranged in the bin body vertically. The left partition plate is provided with a water inlet guiding hole used for communicating with a left cavity and a middle cavity. A left side plate is provided with a water inlet pipe communicating with the left cavity. The right partition plate is provided with a water outlet guiding hole used for communicating with a right cavity and the middle cavity. The position, close to the right side, of the top of the boss is provided with a water outlet pipe communicating with the right cavity. A spacing gap communicating with a bubble collection cavity and the right cavity is formed between the right partition plate and the inner top wall of the bubble collection cavity. A sewage drain outlet is formed in the position, close to the lower end, of a lower oblique plate. The front oblique plate is provided with an opening in the position corresponding to the middle cavity. The heating device is inserted into the middle cavity through the opening.

The invention discloses a remote automatic monitoring system for secondary water supply. The sensor monitors the water flow information of the outlet pipe; equipped with a video acquisition module to obtain video information around the secondary water supply equipment, equipped with a pressure sensor to monitor the water pressure information in the outlet pipe, when the water pressure information / water flow information exceeds the preset water pressure threshold / When the preset water flow threshold reaches the preset time, the alarm module is controlled to issue an alarm, which realizes the remote status monitoring and safety monitoring of the secondary water supply equipment, and improves the safety of the equipment; the timing module and the water level sensor realize the timing and quantitative water addition of the secondary water supply equipment. Function, reduce manpower input and improve work efficiency; access control management module is used to manage the entry and exit of personnel, which improves the safety of secondary water supply equipment.

The invention provides an energy-saving type non-negative-pressure pipe network pressure-superposed flow-stabilizing and pressure-dividing water supply device. The device comprises a detection and pressure-stabilizing assembly, a pressurizing assembly, an intelligent control assembly and a power supply for supplying power to each electrical element. According to the energy-saving type non-negative-pressure pipe network pressure-superposed flow-stabilizing and pressure-dividing water supply device, pressurizing is superposed on the basis of original pressure of a pipe network, so that the pressure of the municipal pipe network is sufficiently utilized, continuous and stable water supply in a peak period is guaranteed, and uninterrupted water supply is really realized; even if power is off,water utilization of users in a low region also can be guaranteed, the operation is stable and the reliability is high; when the water supply device is used for normally supplying water, water supplyrequirements of the users with different heights can be met through a variable-frequency pressurizing water pump set I and a variable-frequency pressurizing water pump set II; the energy-saving type non-negative-pressure pipe network pressure-superposed flow-stabilizing and pressure-dividing water supply device occupies a small area, saves the investment and has high water supply efficiency; meanwhile, in a low peak period, standby water storage tanks can be used for supplying the water; meanwhile, all the standby water storage tanks are communicated with one another, so that normal water supply in each region is guaranteed when a water pump is overhauled; and the energy-saving type non-negative-pressure pipe network pressure-superposed flow-stabilizing and pressure-dividing water supply device has the advantages of energy saving and environment protection, sanitary water quality, no pollution and long service life.

The invention discloses an electric control system for water supply with constant pressure and frequency conversion. The system comprises a water inlet pipe, an electromagnetic valve, a filter screen, a buffer water tank, a communicating water pipe, a one-way electromagnetic valve, a water supply tank, a drain pipe, a pressure stabilizing compensator, a first water supply pipe, a second water supply pipe, a remote pressure gauge, a butterfly valve, a motor controller, a water pump, a water outlet pipe, a circuit protecting device, a programmable controller, a frequency converter and a connecting pipe. The system disclosed by the invention has the beneficial effects that circulating soft start is conducted on the water pump by means of the frequency converter, so that the stability of the equipment which is started is guaranteed, the service life of equipment elements is prolonged, and electrical failures such as overload, under voltage, short circuit and phase sequence of the whole electric control system can be monitored; multiple protection and targeted protection are performed on the electric control system, so that the electric control system is safer and more reliable; and the programmable controller outputs a standard signal to control the output frequency of the frequency converter, so that the rotating speed of the motor of the variable frequency water pump is automatically adjusted to realize closed loop adjustment of the water pressure of a pipe network.