55results about How to "Water sanitation" patented technology

The invention relates to an isolation box for fish propagation. The isolation box comprises a box body provided with a draining opening, an upper isolation net, a rolling shaft, a sliding plate and a driving mechanism, wherein the upper isolation net is transversely arranged in the middle part of the box body and can be used for preventing bred fish from moving to the lower part of the box body; the rolling shaft is detachably arranged in the box body and positioned below the upper isolation net, wherein the rolling shaft is hollow, and the surface of the rolling shaft is a frosted surface and provided with a plurality of through holes of which the diameter is less than fish eggs; the through holes are formed at intervals; a water inlet through which water is fed into the rolling shaft is formed in the rolling shaft; the sliding plate is obliquely arranged between the isolation net and the rolling shaft; the tail end of the sliding plate is correspondingly arranged above the rolling shaft; the driving mechanism is in driving connection with the rolling shaft and can drive the rolling shaft to rotate. According to the isolation box, the fish eggs can be attached on the through holes in the surface of the rolling shaft; the residual foods and the excrement can continuously downwards fall down to reach the bottom part of the box body as the rolling shaft rotates, so that the fish eggs can be conveniently separated from the residual foods and the excrement; the fish eggs can be quickly collected without damage.

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 mainly discloses a split type solar water heater inner machine which comprises a non-pressure-bearing built-in water tank and is mainly composed of an integration device, a two-way circulation pump, an electric heating rod, an optical sensor, a water level sensor, a water temperature water level sensor and a display panel. The inner machine and other parts including a plurality of one-way valves, a filter valve, a plurality of control valves, multi-way inlet / outlet pipeline ports, an automatic pressurizing pipeline and the like form a whole machine and a whole operation system. The optical sensor is used for detecting external light, and the integration device adopts the sensors to conduct detection to finish automatic control and operation of the whole system according to a program. The split type solar water heater inner machine enables a solar water heater to be synchronous with light, adopts the electric heating rod to keep the temperature constant in due time and has the advantage of being high in practicality, high in automation degree, high in integration degree and the like.

The invention discloses a supply system of hot water prepared by geothermal water combined with a water source heat pump. The system mainly consists of a geothermal well, a recharge well, a plate heat exchanger, a heat pump unit, a silver / copper ion generator, a hot water variable-frequency pump, a hot water storage tank and a control cabinet, wherein outlet water of a pump in the geothermal well is provided with a water transmission and distribution pipe for connecting with a primary inlet of the plate heat exchanger; a secondary inlet and a secondary outlet of the plate heat exchanger are respectively provided with a heat pump water return pipe and a heat pump circulating pipe for connecting with a primary outlet and a primary inlet of the heat pump unit to form a circulation; a secondary inlet and a secondary outlet of the heat pump unit are respectively provided with a heat pump water inlet pipe and a heat pump water outlet pipe for connecting with the hot water storage tank to form a circulation; outlet water of the hot water storage tank is connected with a hot water supply pipe; and the silver / copper ion generator is mounted on the hot water supply pipe. The system has such advantages as simple structure, low investment and high heat utilization rate, and has the beneficial effects of good energy-saving and emission-reducing effects, safety and sanitation in water quality and low heating cost.

The invention discloses water storage type pipe network pressure-superposed water supply equipment. The water storage type pipe network pressure-superposed water supply equipment comprises a water supply main pump, a pneumatic water tank and a control cabinet, and further comprises a stainless steel water storage tank, an auxiliary booster pump and a water disinfector, wherein the stainless steel water storage tank is arranged in front of water supply main pumps; the water outlet of the stainless steel water storage tank is connected with a direct connecting pipe through a water tank water outlet pipe; the auxiliary booster pump is mounted on the water tank water outlet pipe; after the direct connecting pipe is connected with the water tank water outlet pipe and before the direct connecting pipe is connected with the water supply main pumps, the water disinfector is mounted on the direct connecting pipe; and a liquid level transducer is arranged in the stainless steel water storage tank. The water storage type pipe network pressure-superposed water supply equipment has the benefits that the advantages of good water supply security, simple structure, low cost and the like are achieved, water is sanitary and the energy-saving effect is excellent.

The invention mainly discloses a light-controlled constant-temperature nonpressurized detachable solar water heater. The solar water heater comprises a nonpressurized inner machine and a heat collecting outer machine, wherein the inner machine mainly comprises a water tank, an integrator, a two-way circulating pump, an electrical bar, a light sensor, a temperature sensor, a water level sensor, a water temperature and water level sensor, a display control panel and other parts including a plurality of check valves, a filter valve, a plurality of control valves, multiple inlet and outlet pipeline ports, an automatic boost pipeline and the like; the inner machine and the heat collecting outer machine form the whole machine and the whole operation system; and automatic control and operation of the whole system are completed by adopting the light sensor to detect the outside light and then adopting the integrator to carry out programming according to the detection basis of each light sensor. The solar water heater has the following advantages: the solar water heater is synchronized with light; the electrical bar is adopted for keeping temperature constant in due time; and the solar water heater has strong practicability, high degree of automation, strong integration and the like.

The invention discloses a no-pollution internal-wall concrete water tank made of HDPE boards, which comprises a steel concrete bottom board, steel concrete circular side wall upwardly extending in the mode of surrounding the circumference of the bottom board, and a steel concrete top board on the top of the circular side wall, wherein the bottom board, the circular side wall and the top board form an integrated water storage chamber, and the internal wall of the water storage chamber is provided with water inlets and water outlets. The difference is as follows: the bottom board and the circular side wall are respectively and fixedly connected with an HDPE internal bottom board and an HDPE circular internal side board corresponding to the sizes of the bottom board and the circular side wall, and the internal bottom board and the internal side board are welded in a heat melting mode or a buckling mode. The water tank enables the HDPE internal wall and the concrete wall to be tightly combined and firmly fixed into a whole by previously embedding a plurality of HDPE bars. The water tank uses the internal wall of HDPE boards, is not harmful to the human body, has good mechanicalness, heat resistance, permeating resistance and durability and smooth surface, does not generate the defective element of water corrosion, and enables the water quality to be more sanitary and safer.

The invention discloses a full-automatic pot-type pipe network differential pressure compensation energy conservation water supply plant. The full-automatic pot-type pipe network differential pressure compensation energy conservation water supply plant is mainly composed of a flow regulating valve, a flow stabilization compensation tank, a negative pressure eliminator, a first water pump, a second water pump and a control cabinet; the flow stabilization compensation tank comprises a three-cavity horizontal type structure formed by a flow stabilization cavity, a water storage cavity and a high-pressure energy storage cavity; an installation opening is formed in the top of the high-pressure energy storage cavity, a water level sensor is installed in the installation opening in a matched mode, and a breathing pipe is further connected to the installation opening; and a connecting pipe is arranged on a water distribution pipe so as to be connected with a water storage opening of the flow stabilization compensation tank. The full-automatic pot-type pipe network differential pressure compensation energy conservation water supply plant has the beneficial effects that the advantages of being compact in structure, small in occupied land, convenient to install and maintain, sanitary in water quality and the like are achieved; in addition, differential pressure compensation adjustment on the insufficient tap water inlet amount can be carried out through the water storage cavity, the adjusting volume is increased, and the water supply safety is improved; meanwhile, the high-pressure energy storage cavity can still guarantee normal water supply and achieve the energy-saving effect during small-flow pump stopping; and the high-pressure energy storage cavity can conveniently conduct automatic air compensation.

The invention discloses a high-temperature high-efficiency flat plate collector, and relates to collectors. The high-temperature high-efficiency flat plate collector is composed of three parts including a transparent cover plate, a heat collection pipe and a shell plate; the heat collection pipe is a blue film and black cadmium or silicon film heat collection pipe; the inner layer of the shell plate is a light reflecting and focusing heat preservation plate with an arc-shaped face; and the heat collection pipe is fixed into space of the arc-shaped face of the shell plate, and the transparent cover plate is fixed to the upper face. The high-temperature high-efficiency flat plate collector is simple in structure, higher in heat collection efficiency, higher in mechanical strength, smaller in cost and weight, easy to produce, transport and install and higher in safety.

An open and pressure-bearing type dual-purpose solar water heater comprises a solar water heater support, a solar heat collector, a heat-preservation water tank, a control instrument and a connecting pipeline; the heat-preservation water tank is an open type non-pressure-bearing water tank, a support is arranged in the heat-preservation water tank, a metal coil is installed on the support, and two ends of the metal coil penetrate through the heat-preservation water tank to form an inlet and an outlet of the metal coil; and the connecting pipeline comprises a cold water pipeline connected with the inlet of the metal coil, a hot water pipeline connected with the outlet of the metal coil, and a water inlet and outlet pipeline connected with the heat-preservation water tank, and a communicating pipeline is arranged between the water inlet and outlet pipeline and the hot water pipeline. The open and pressure-bearing type solar water heater can achieve two functions of water use of an open (non-pressure-bearing) type water heater or a pressure bearing type water heater in the same water heater, and is convenient to operate, and the functions can be automatically switched only through pressing a button; and the pressure water is clean, and the manufacturing cost is low.

The invention discloses high-rise partitioned tandem water supply equipment. The high-rise partitioned tandem water supply equipment mainly comprises a negative-pressure eliminator, a steady-flow tank, a water disinfector, water pumps, a master control cabinet, a middle-area pipeline pressurizing device, a middle-area control box, a high-area pipeline pressurizing device and a high-area control box, wherein the water inlet of the steady-flow tank is connected with a tap water inlet pipe; the water outlet of the steady-flow tank is sequentially connected with the water pumps and a water supply pipe through a connecting pipe; the water supply pipe is connected with a user pipe network including low-area water using points, middle-area water using points and high-area water using points; the middle-area pipeline pressurizing device is arranged on the connecting pipeline between the low-area water using points and the middle-area water using points; and the high-area pipeline pressurizing device is arranged on the connecting pipeline between the middle-area water using points and the high-area water using points. The high-rise partitioned tandem water supply equipment has the benefits that as tandem partitioned pressurizing water supply is adopted, the advantages of small occupied land, investment conservation, energy-saving operation, sanitary water quality, safe water supply, full-automatic intelligent control and the like are achieved, and the high-rise partitioned tandem water supply equipment is particularly suitable for secondary water supply occasions of high-rise and super high-rise buildings.

The invention provides a mute type no-negative-pressure water supplying device, which is composed of a steady flow compensator, a vacuum suppressor, a shielding pressurizing device and a control cabinet, the mute type no-negative-pressure water supplying device is characterized in that: the vacuum suppressor is arranged on the steady flow compensator, and a pressure sensor is arranged on the steady flow compensator, a running water inlet pipe is connected with an inlet connecting pipe of the shielding pressurizing device after being connected with the steady flow compensator, the shielding pressurizing device is mainly composed of a submersible pump, a pipe sleeve, a fixing support, an inlet connecting pipe, an outlet connecting pipe and a wiring sealing hole; the vacuum suppressor, the submersible pump, the pressure sensor and the pressure sensor are connected with a control cabinet by wires, and an SM510 control device is arranged in the control cabinet. A complete sealing non-pollution structure is adopted in the invention, and the mute type no-negative-pressure water supplying device works in a frequency conversion energy-saving way without negative pressure, the noise is low, the vibration is less, the water quality is sanitary, the space is not occupied, thereby being suitable for being arranged in the secondary pressurized water supplying occasion with strict noise requirement such as adjacent tenements, offices and the like.

The invention mainly discloses a flat split-type solar water heater which mainly comprises a non-bearing inner machine and a flat heat-collecting outer machine. The inner machine mainly comprises a water tank, an integrating device, a bi-directional circulating pump, an electric heating bar, a photo sensor, a water level sensor, a temperature sensor and other parts including a plurality of one-way valves, a filtering valve, a plurality of control valves, multiple water inlet and water outlet pipeline ports, an automatic pressurizing pipeline and the like, and thereby an integral machine and an integral running system are formed. External light is detected via the photo sensor, and automatic control and operation of the integral system are completed by programming detecting standards of the sensors by the integrating device. The flat split-type solar water heater runs synchronously with light, utilizes the electric heating bar to keep temperature constant, and has the advantages of strong practicality, high automation degree, strong integration and the like.

The invention discloses a quick-heating liquid heating tube provided with a metal tube on which at least one axial water-flow channel is arranged and at least one axial heating wire mounting channel is arranged; one heating wire is arranged in each heating wire mounting channel; a heat conducting high-temperature-resistant insulation material is filled into the heating wire mounting channel and the peripheral region of the heating wire is covered by the insulation material; the water-flow channel is adjacent to but not communicated with the heating wire mounting channel, and the water-flow channel is integrated with the heating wire mounting channel; the metal tube is made of one-piece of metal provided with a better heat conductivity. The quick-heating liquid heating tube of the invention is provided with the integrated and adjacent water-flow channel and heating wire mounting channel, and then the isolating wall between the water-flow channel and heating wire mounting channel can be made to be so thin that the distance between the water-flow channel and the heating wire mounting channel can be shortened; the heat conducting loss can be reduced; the heat conducting efficiency can be enhanced and the service life of the heating elements can be prolonged.

The invention discloses a full-automatic pipe network pressure-superposed water supply device. The full-automatic pipe network pressure-superposed water supply device is mainly composed of a negative pressure eliminator, a flow stabilization regulating tank, a water sterilizer, water pumps, flow limiting check valves, a gas pressure water tank, a flow meter and a control cabinet, wherein the flow limiting check valves are arranged on water outlet pipes of the water pumps and are connected with the water inlet pipes of the water pumps through control pipes. The flow limiting check valves are used for limiting the flow of the water pumps and stabilizing the pressure of the water pumps, and can make the water pumps work in an efficient area and prevent motor burnout caused by the overload of the low-lift and large-flow water pumps. The full-automatic pipe network pressure-superposed water supply device has the advantages of being compact in structure, small in occupied space, capable of saving investment, capable of saving energy in the running process, sanitary in water quality, and the like; the full-automatic pipe network pressure-superposed water supply device can be connected to a tap water pipe network in series to supply water in a negative-pressure-free, flow-variable, pressure-variable and energy-saving mode; meanwhile, the flow limiting check valves are arranged, and therefore the situations that the lift of the water pumps is decreased and the flow is increased can be effectively avoided, the water pumps are prevented from the overload, and the flow limiting effect, the non-return effect and the water eliminating hammer effect are achieved; the full-automatic pipe network pressure-superposed water supply device is high in water supply safety and automation degree and convenient to install, manage and maintain.

Disclosed is a control device of a centralized hot water heat exchange station. The control device mainly comprises a controller, a display and setting module, a monitoring module, an alarm module, a temperature control module, an energy saving measurement module, a circulating pump control module and a water quality control module. The controller is used for conducting automatic control over the temperature control module, the circulating pump control module and the water quality control module, and conducting display, setting, output and input through the display and setting module, and the controller further conveniently achieves remote monitoring through the monitoring module and gives an alarm through the alarm module. The control device has the advantages that modularized control is adopted by the centralized hot water heat exchange station, the system configuration is complete, the adjustment and control function is reasonable, the adaptability is high, the using effect is good, operation and control are convenient and easy, energy and water are saved in the operating process, the water quality is high, water is sanitary, the social and economic benefit is high, and therefore the control device has the good popularization and application prospect.

The invention relates to a water purification system and a water purifier provided with the same. The water purification system comprises a reverse osmosis membrane filter element, a first conductivity sensor, a TDS filter structure, a first control valve assembly and a controller, wherein the water outlet of the reverse osmosis membrane filter element is connected to a first main path, the firstmain path is branched into a first branch and a second branch, and the water outlet ends of the first and second branches are combined to form a second main path; the first conductivity sensor is arranged on the first main path; the TDS filter structure is arranged on the second branch; if the measured first TDS value is smaller than a first preset numerical value a, the controller controls the first control valve assembly, so that the first main path communicates to the first branch; if the measured first TDS value is greater than the first preset numerical value a but less than or equal to asecond preset numerical value b, the controller controls the first control valve assembly to communicate the first main path to the second branch. The water purification system can reduce the TDS content of a first cup of water intelligently, so that the user uses water more safely and sanitarily.

The invention relates to a split type solar water heating system with a U-shaped tube heat collector and a detachable enameled coil heat exchanger. The split type solar water heating system comprises a water tank and the heat collector, and is characterized in that a vacuum tube is mounted in a heat collector frame, a U-shaped heat collecting tube is arranged in the vacuum tube, an aluminum fin is inserted in the U-shaped heat collecting tube, and the heat collecting tube is connected with the water tank by medium circulating pipelines; steel tubes are rolled and then are enameled to form the heat exchanger of the water tank. The split type solar water heating system has the advantages that problems of easiness in corrosion due to welding pressure on a built-in heat exchanger, excessively quick corrosion of welded points of a stainless steel water tank, excessively quick corrosion of sandwich layers of an external heat exchanger and the like can be solved; a coil is of a detachable structure and is convenient to maintain, and the internal heat exchange efficiency of the water tank can be improved; forced circulation is carried out on a heat exchange system by the aid of a pump station, so that the heat exchange efficiency can be further improved.

The invention relates to a separated type solar water heater with a U-shaped heat collector and an embedded heat exchanger. The separated type solar water heater with the U-shaped heat collector and the embedded heat exchanger comprises a water tank and a heat collector; an inner container is arranged inside the water tank; the embedded type heat exchanger is formed by the inner container and a sphere end socket; an air discharging hole, a medium circulation inlet and a medium circulation outlet are formed in the external end of the heat exchanger; the air discharging hole is connected with an air discharging valve; the medium circulation inlet and the medium circulation outlet penetrate an external wall of the water tank to be connected with a medium circulation pipeline; a water inlet pipe and a water outlet pipe are arranged in the inner container; the water inlet pipe and the water outlet pipe penetrate the water tank to be connected with external pipelines; a vacuum pipe is arranged in a heat collector framework; the vacuum pipe is connected with the heat collector framework through a sealing ring; a stainless steel U-shaped pipe is inserted into the vacuum pipe; the upper end of the U-shaped pipe is a hot pipe section and the lower end of the U-shaped pipe is a clod pipe section; the two ends of the U-shaped pipe are respectively connected with a medium heat collection outlet and a medium heat collection outlet; the medium heat collection outlet and the medium heat collection outlet are respectively connected with the medium circulation inlet and the medium circulation outlet to form into a circulation circuit. According to the separated type solar water heater with the U-shaped heat collector and the embedded heat exchanger, the U-shaped pipe which is filled with mediums is arranged, so that water cannot flow in the vacuum pipe, no scale is formed in the vacuum, and accordingly the heat collecting efficiency cannot be influenced when the vacuum pipe is used for a long time.

The invention relates to a tube type heat collector capable of efficiently collecting heat. The tube type heat collector capable of efficiently collecting the heat comprises a heat collector frame, a vacuum pipe, a U-shaped heat collecting pipe, a metal fin, a medium circulation inlet and outlet opening, a medium heat collecting inlet and a seal ring. The tube type heat collector capable of efficiently collecting the heat is characterized in that the vacuum pipe is installed inside the heat collector frame, the vacuum pipe is connected with the heat collector frame through the seal ring, the U-shaped heat collecting pipe is inserted into the vacuum pipe, the upper pipe body of the U-shaped heat collecting pipe is a heat collecting pipe body, the lower pipe body of the U-shaped heat collecting pipe is a heat collecting cooling pipe body, the metal fin is inserted into the heat collecting pipe body on the U-shaped heat collecting pipe, two end portions of the U-shaped heat collecting pipe are connected with a heat collecting outlet and a heat collecting inlet respectively, and the heat collecting outlet and the heat collecting inlet penetrate through the heat collector frame and are connected with the outer portion of the heat collector frame. The metal fin is additionally arranged, therefore, heat energy transmission efficiency is improved, and medium circulation speed and heat collecting efficiency are improved.

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 a water heater heat exchanger which comprises a water inlet tube, a water outlet tube, a first group of communicating tubes, a second group of communicating tubes and a heat exchange main body which comprises a combustor, heat conduction tubes and a heat exchange fin which are formed by integral die-casting forming through aluminum alloy, three or more heat conduction tubes are arranged, and each heat conduction tube protrudes out of the first end and the second end of the heat exchange main body; the first group of communicating tubes and the water inlet tube are located at the first end of the heat exchange main body, the water inlet tube is used for being communicated with one heat conduction tube which protrudes out of the first end of the heat exchange main body, and the first group of communicating tubes is used for being communicated with the rest heat conduction tubes which protrude out of the first end of the heat exchange main body; the second group of communicating tubes and the water outlet tube are located at the second end of the heat exchange main body, the water outlet tube is used for being communicated with one heat conduction tube which protrudes out of the first end of the heat exchange main body, and the second group of communicating tubes is used for being communicated with the rest heat conduction tubes which protrude out of the first end of the heat exchange main body. The invention further discloses a manufacturing method of the water heater heat exchanger. The water heater heat exchanger and the manufacturing method thereof have the advantages that the cost is reduced, and the overall strength and the heat conduction efficiency of the heat exchanger are improved.

The invention mainly discloses an indoor unit of an optically-controlled split solar water heater. The indoor unit comprises an inner unpressurized water tank, an integrator, a corresponding photo sensor, a bidirectional circulating pump, a plurality of control valves, a water level sensor, a display panel, a plurality of one-way valves, a filter valve, an exhaust port, a plurality of water inlet and outlet pipeline orifice, an automatic supercharging pipeline and the like which form the indoor unit and the entire operating system. In the indoor unit, external light rays are detected by the photo sensor and automatic control and operation of the entire system are finished by the integrator according to a program. Simultaneously, the entire operating system is integrated with an inner water tank. The indoor unit has the characteristics of synchronization with light, high practicability, high degree of automation, high integration and the like.

The invention discloses a cleaning and nursing device. The device comprises a plurality of filter elements, an integrated water channel, a plurality of control valves, a sprinkler and a controller, wherein the integrated water channel is connected with the filter elements and provided with a water inlet and a plurality of water outlets, the control valves are arranged on the water outlets or on the downstream side of the water outlets respectively, the sprinkler is connected with the control valves and provided with a plurality of water orifices, and the controller is in communication with the control valves and controls the control valves to be switched on and off. By arranging the control valves connected with the water outlets of the integrated water channel, filtration switching of the multiple filter elements can be achieved so that sterile water for bathing can be provided for users. By arranging the multiple water orifices on the sprinkler, switching of different water spraying modes can be achieved. The device is simple in structure, component connection is reliable, cost is low, water demand of users can be met, water using safety and sanitation can be guaranteed, and user experience is good.

The invention discloses a high-order storage pipe network pressure superposed water supply device. The high-order storage pipe network pressure superposed water supply device is mainly composed of a constant flow tank, a negative pressure eliminator, water pumps, a flow gauge, a control cabinet and an air pressure water tank. A water inlet of the constant flow tank is connected with a water inlet pipe of running water. A teletransmission pressure gauge and the negative pressure eliminator are installed on the constant flow gauge. The two to four water pumps are arranged in parallel. A water inlet of each water pump is connected with a water suction pipe. A water outlet of each water pump is connected with a water supply pipe. The water supply pipe is further provided with a pressure controller and the teletransmission pressure gauge. The position of a tail end water consuming point is provided with the air pressure water tank and the teletransmission pressure gauge. The high-order storage pipe network pressure superposed water supply device has the advantages of occupying small area, saving investment, saving operation energy and being hygienic in water quality. In addition, the high-order storage pipe network pressure superposed water supply device can be connected directly to a running water pipe network to perform non-negative pressure and variable quantity and pressure energy-saving water supply, and the tail end water consuming point is provided with the air pressure water tank so that the functions of constant pressure, constant flow, energy conservation and water hammer resistance can be achieved well. The high-order storage pipe network pressure superposed water supply device is flexible to install and convenient to manage and maintain.

The invention mainly discloses a split vacuum pipe type solar water heater which comprises a non-pressure bearing inner machine and an outer machine which is formed by heat collecting vacuum glass pipes. The inner machine is mainly formed by a water tank, an integrator, a bidirectional circulating pump, a light sensor, a plurality of water level sensors, a display panel and rest parts such as a plurality of one-way valves, a filtering valve, a plurality of control valves, a plurality of pipeline inlets and outlets and an automatic pressurizing pipeline. The inner machine and the outer machine are formed into a complete machine and an integral operation system. The light sensor detects light outside and the integrator achieves automatic control and operation on the integral system according to programming through detection of various sensors. The split vacuum pipe type solar water heater has the advantages of being synchronously operated with the light, strong in practicability, high in automation degree, strong in integration and the like.

The invention mainly discloses an indoor unit of a split type solar water heater. The indoor unit of the split type solar water heater comprises an unpressurized internal water tank, and is mainly composed of an integrator, a bidirectional circulating pump, an electrical bar, an optical sensor, a water level sensor, a temperature sensor, a display panel, multiple one-way valves, a filter valve, multiple control valves, multiple inlet-outlet pipeline openings, an automatic pressurizing pipeline and the like to form an overall unit and an overall running system. The overall system is controlled automatically and runs by means of detecting outside light rays through the optical sensor and then detecting by the integrator through the sensors, and according to programming. The indoor unit of the split type solar water heater has the capabilities of enabling the solar water heater to be synchronous with light and timely thermostating by the aid of the electrical bar, and has the advantages of high practicality, high automation, high integration and the like.

The invention discloses a drinking water system suitable for public places in a school. The normal-temperature water outlet of a drinking machine is connected with the hot water outlet and the cold water outlet of a heating and refrigerating all-in-one machine through a water inlet pipe of a raw water tank; water enters from the water inlet of the original water tank at first and then pressurized by a booster pump; raw water is led to a silt and sand filter which is sequentially connected with a granular activated carbon filter and a lump activated carbon filter and a water softener through a water pipe, so that water can be further purified. The drinking water system suitable for public places in the school can prevent and eliminate secondary pollution of tap water, and ensures that water meets the present international standard and is greatly lower than barreled water in price.

The invention discloses a human body cleaning system with an anti-scaling function. The human body cleaning system comprises a water inlet channel communicated with a water supply source; a water spraying body which is provided with a water spraying channel communicated with the water inlet channel; an air source which is used for supplying air to the water spraying channel; a first control unit which is used for controlling the water spraying body to spray water; and a second control unit which is used for controlling the air source to supply air; wherein after the first control unit is usedfor controlling the water spraying body to spray water, the second control unit is used for controlling the air source to supply air to the water spraying channel. According to the scheme, the water spraying body is controlled to blow air to the water spraying channel through the air source after each time of functional washing, residual water in the water spraying channel is removed, dirt is prevented from being generated in the water spraying channel after the water spraying body is used for a long time, water used by a user is safer and more sanitary, and the product experience and comfortof consumers are greatly improved.

The invention mainly discloses a flat split-type solar water heater which mainly comprises a non-bearing inner machine and a flat heat-collecting outer machine. The inner machine mainly comprises a water tank, an integrating device, a bi-directional circulating pump, an electric heating bar, a photo sensor, a water level sensor, a temperature sensor, a display board and other parts including a plurality of one-way valves, a filtering valve, a plurality of control valves, multiple water inlet and water outlet pipeline ports, an automatic pressurizing pipeline and the like, and thereby an integral machine and an integral running system are formed. External light is detected via the photo sensor, and automatic control and operation of the integral system are completed by programming detecting standards of the sensors by the integrating device. The flat split-type solar water heater runs synchronously with light, utilizes the electric heating bar to keep temperature constant, and has the advantages of strong practicality, high automation degree, strong integration and the like.