55results about How to "Save money on electricity" patented technology

The invention discloses a data center energy consumption management method and system based on dynamic frequency modulation. The method comprises frequency modulation energy conservation of a single server and task scheduling of energy awareness among servers, wherein the frequency modulation energy conservation of the single server comprises the steps of taking a time quantum of a constant task number as a frequency modulation unit, estimating dissipative energy of each unit according to an energy consumption model and task information, and utilizing a heuristic algorithm to select a frequency modulation mode which enables the sum of energy consumption of all units to be minimum so as to adjust the frequency of a processor; the task scheduling of energy awareness among the servers comprises the steps of selecting a candidate server according to the state of each server and the task information when a task reaches, utilizing a frequency modulation energy conservation method on the single server by each server according the task information to estimate the energy consumption change, selecting the server with the minimum energy consumption change by a controller to distribute a new task, and utilizing the frequency modulation energy conservation method on the single server by the selected server to modulate the frequency and operate the new task. According to the invention, the energy consumption of the servers in a data center is reduced by frequency modulation and task distribution, and energy saving and emission reduction effects are achieved.

The invention relates to a light source for lighting organic electroluminescence (OEL) plants. In the method, a light-conversion-light function layer is added to the outer surface of a glass substrate of an OEL light source, so that a part of incident light of the OEL light source transmitting the light-conversion-light function layer is converted into red light with wavelength of 600-680nm. The manufacturing method of the light source for lighting the OEL plants refers to manufacture the light-conversion-light function layer with hollow patterns on the outer surface of the glass substrate. In the invention, a light-conversion-light array is utilized to regulate the emitting proportion of a blue light peak area to a red light peak area of an organic light-emitting diode (OLED) lighting device, thus realizing an approximately-even area source. The manufacturing method is utilized to improve the radiation of the blue light area and the red light area required by plant growth. The light source can stably light for a long time, are environmentally friendly, can grow the plants quickly, can ensure human health, and is an novel efficient, energy-saving and environmentally-friendly light source for plant growth.

The invention relates to a micro-grid system and a micro-grid system-based fuzzy control method. The micro-grid system comprises a fuzzy control system, distributed energy power supply equipment and an electrical appliance, wherein the fuzzy control system is used for acquiring electrovalence information of the conventional grid and the power information of the distributed energy power supply equipment; and the electrical appliance is managed by adopting the fuzzy control system. By adopting the fuzzy control method in the micro-grid system, optimal compromise between the power consumption satisfaction of a user and reduction in a load peak is realized, power consumption peak is avoided, the burden of the micro-grid system is lowered, power consumption expense is saved, and the contradiction between power consumption supply and demand is further relieved.

Disclosed are a large-area organic electroluminescence area light source and an electrode extraction method thereof. The large-area organic electroluminescence area light source comprises an ITO (indium tin oxide) glass substrate, an organic material layer and a metal electrode layer. ITO is disturbed in a arrayed block form on the ITO glass substrate and the upper end of the ITO is distributed in a strip form. A metal heat conducting functional layer is distributed in a strip form on the ITO glass substrate and form an anode along with the ITO. The organic material layer is evaporated on the ITO and the metal heat conducting functional layer. The metal electrode layer is completely evaporated on the organic material layer to from a cathode. The electrode extraction method is characterized in that regular patterns of the ITO distributed in the arrayed block form on the ITO glass substrate can be square and of various shapes such as 'E' shape in a visual testing chart in actual application. By the heat conducting functional layer, good and fast radiation and even light emission are achieved, and a display is enabled to have the functions of good radiation and even light emission. In addition, the large-area organic electroluminescence area light source is efficient, energy-saving and environment-friendly.

The invention relates to an organic electroluminescent luminous display and a manufacturing method thereof. The display comprises ITO substrate glass, an organic material layer, a metal electrode and a seal cover, wherein a heat-conductive functional layer provided with lattice distributed holes is arranged on the ITO substrate glass; the organic material layer is arranged inside the lattice distributed holes of the heat-conductive functional layer; the metal electrode is arranged on the organic material layer and the heat-conductive functional layer; and the seal cover is arranged on the upmost position. The method comprises the following steps: firstly, preparing the heat-conductive functional layer provided with the lattice distributed holes on the ITO substrate glass; secondly, sequentially performing vapor deposition on the organic material layer and the strip metal electrode; and finally form the organic electroluminescent lighting display through packaging technology. The invention utilizes the heat-conductive functional layer to realize good and quick heat dissipation, and enables the display to have good heat dissipation function. The method reduces the influence probability of impurity particles on the display, and particularly has the performances of high efficiency, energy saving and environmental protection.

The invention discloses a one-piece flat-plate solar photo-thermal photovoltaic system. The one-piece flat-plate solar photo-thermal photovoltaic system comprises a flat-plate solar heat collector, a solar photovoltaic power generating panel, a water tank, a circulating water pump, a storage battery, an inverter and a controller, wherein the flat-plate solar heat collector is provided with a tubular heat absorber, a water inlet of the tubular heat absorber is connected with the water tank through a first pipeline, and an outlet of the tubular heat exchanger is connected with the water tank through a second pipeline; and the circulating water pump is arranged on the first pipeline and electrically connected with the controller. The one-piece flat-plate solar photo-thermal photovoltaic system further comprises a thermoelectric power generating system, wherein the thermoelectric power generating system comprises a cold water circulating system, a third pipeline connected between the first pipeline and the second pipeline and a thermoelectric power generating fin; and the hot end of the thermoelectric power generating fin is connected with the third pipeline, and the cold end of the thermoelectric power generating fin is connected with the cold water circulating system. The one-piece flat-plate solar photo-thermal photovoltaic system has high solar utilizing rate and can meet the requirements of users on hot water in rainy days.

The invention relates to an annular heat pipe type cold accumulation refrigerator. The refrigerator comprises a refrigerator body, a compressor, an evaporator, a capillary pipe, a condenser and the like, wherein a cold accumulation chamber is further arranged on the refrigerator body and is filled with phase-change cold accumulation materials in an encapsulated mode, the evaporator is located in the phase-change cold accumulation materials in the cold accumulation chamber, the condensation sections of one or more annular heat pipes are located in the phase-change cold accumulation materials in the cold accumulation chamber, a part of the evaporation section of each annular heat pipe is located in a cold storage chamber, and the other part of the evaporation section of each annular heat pipe is located in a refrigeration chamber. According to the refrigerator, the temperature of the refrigeration chamber and the temperature of the cold storage chamber are kept within the national standard range, and the annular heat pipes start to operate when the temperature of the refrigeration chamber and the temperature of the cold storage chamber are higher than set values and stop operating when the temperature of the refrigeration chamber and the temperature of the cold storage chamber are lower than the set values. Cold energy is stored during the valley electricity period, electric energy is not consumed during the peak electricity period, and stored cold energy is released all through the day. The start-stop frequency of cold releasing of the annular heat pipes is far higher than that of working of the compressor, and then fluctuation of the temperature of the refrigeration chamber and the temperature of the cold storage chamber is controlled accurately.

The invention discloses a Ufasoft Coin power supply device which comprises a Ufasoft Coin body, wherein a display card is arranged on the Ufasoft Coin body; a heat radiator is arranged on one side of the display card; heat radiator helix blades are arranged on the heat radiator; a mechanical energy to electric energy conversion device is arranged at the bottom end of the heat radiator; a power supply plug is arranged on one side of the mechanical energy to electric energy conversion device; a cable is arranged on one side of the power supply plug; a helix connection device is arranged on one side of the cable; a solar plate fixing rack is arranged at the bottom end of the helix connection device; a first fixing hole is formed in one side of the solar plate fixing rack. The Ufasoft Coin power supply device has the greatest advantages that extra power can be supplied to a Ufasoft Coin, so that the electric demand of the Ufasoft Coin can be reduced, the cost in collecting Bitcoins can be reduced, power can be supplied to the display card by virtue of solar energy and wind power, the fan on the heat radiator is rotated, the mechanical energy can be converted into electric energy, and then power can be continuously supplied to the display card, so that the power can be saved, the cost can be reduced, and the Ufasoft Coin power supply device is simple in structure and convenient to popularize.

The invention provides a peak and valley socket and belongs to the technical field of electricity utilization metering equipment. The peak and valley socket solves the problems that an existing socket used for valley electricity is too complex in structural design and single in function, detects existing practically cannot be overcome, and the demand of users cannot be met. According to the peak and valley socket, a peak and valley electricity electrifying diverter switch, a time changing device and a time controller are arranged in a socket shell, wherein the time changing device can change a summer peak and valley electricity utilization period and a common peak and valley electricity utilization period in foreign countries or in summer and correspondingly change set time in a timing module, the time controller is used for setting and controlling electricity supplying time, the peak and valley electricity electrifying diverter switch is electrically connected with a power source and a socket copper core, the time changing device is electrically connected with the timing module in the peak and valley electricity electrifying diverter switch, and the time controller is electrically connected with a converting module in the peak and valley electricity electrifying diverter switch. The peak and valley socket has the advantages that peak electricity outage and valley electricity electrification can be achieved, time converting is accurate, and the summer period and the common period can be separated.

The invention relates to a novel milling liquid for a four-roll mill and a preparation method thereof. The novel milling liquid for the four-roll mill at least comprises the following components by volume percent: 15 to 25% of polyols, 25% to 35% of trithylenetramine, 5% to 10% of inorganic alkali, 8% to 10% of additive and the balance of water. The novel milling liquid for the four-roll mill changes emulsion into completely synthesized liquid, has long service life which is 6 to 7 times longer than that of the emulsion; and the liquid can not easily generate degeneration, rancidity or bacteria and completely contains no emulsifier or mineral oil.

The invention discloses a ship power distribution control system based on an intelligent controller. The system comprises a power distribution terminal arranged on a ship and a monitoring terminal connected with the power distribution terminal; the power distribution terminal comprises a wind energy and photovoltaic power generation module, a charging circuit, a storage battery, an inverter circuit, an intelligent controller, a ship electronic appliance electro-module, a ship power electro-module and a security and protection module. The system can measure the voltage, current, frequency, active power, reactive power and power factors of ship electro-equipment, after the measurement and calculation result is obtained, electric energy data is provided for the monitoring terminal through a communication module, an instruction of the monitoring terminal is awaited in real time to control the intelligent controller to be switched on and switched off, and thus the ship electro-equipment connected with the intelligent controller is controlled to be switched off. The ship power distribution control system has the advantages of having multi-protection and being accurate in measuring, highin reliability, practicability and intellectualization, low in cost and the like, the ship electricity cost can be effectively reduced, and the ship is helped to effectively save energy.

The utility model discloses a wind power generation method to recycle the man-made wind energy to solve the prior problem of wasting the man-made wind energy. The wind power generation method of the utility model adopts the technical proposal that a wind power generator is arranged at the air outlet of the man-made wind source; the electricity generated by the wind power generator is input into the power network or supplied to the electricity-driven equipment. Compared to the prior art, the utility model can recover part man-made wind energy generated by the air blower and return the recovered wind energy to the electricity network or supply the recovered wind power to lighting in the factory so as to prevent the waste of the electric energy, thus not only the electricity cost is reduced but also the electric energy with a high efficiency manner is utilized. The recovery rate for energy consumption of the utility model can reach 30% more according to the measuring and calculating.

The invention relates to a household energy management optimization scheduling method and system. The method comprises the following steps: obtaining the time-of-use electricity price information of a scheduling system in each optimization time period and the demand response information of household equipment, and substituting the time-of-use electricity price information of the scheduling system in each optimization time period and the demand response information of the household equipment into a pre-established household energy management system optimization scheduling model to obtain a household equipment scheduling strategy corresponding to each optimization time period. According to the technical scheme provided by the invention, the power utilization comfort of the user is considered while the user cost is considered, the load response potential of the household appliances and the charging and discharging capacity of the energy storage battery are fully utilized on the premise of ensuring the user satisfaction and the user power utilization cost, local consumption of distributed roof photovoltaic is promoted, meanwhile, the energy storage battery stores the photovoltaic surplus electric quantity and discharges electric energy at the peak electricity price, and the load is transferred from the peak electricity price to the valley electricity price, so that the electricity consumption expenditure of the household user is saved, the household energy income is improved, and the electricity consumption comfort of the user is considered at the same time.

The invention provides a power supply control method of an air conditioner. The method comprises the following steps that S1, a unit is started, and a solar illumination intensity receiving device ofthe air conditioner receives an illumination signal; S2, whether the illumination intensity is larger than a set value or not is judged, and if yes, the commercial power is disconnected, and a storagebattery is powered by a solar panel; and if not, the storage battery is powered by the commercial power; and S3, the illumination intensity is judged every other period of time, and the step S2 is returned to be executed. The invention further provides an energy-saving air conditioner, wherein the power supply of the air conditioner is controlled by the method. The method has the advantages thatself-adaptive switching can be carried out on the commercial power or solar power supply modes according to the illumination intensity, so that the energy-saving effect is enhanced and the user experience is improved.

The invention discloses a power coating stirring device, which comprises a rack, a motor and a speed reducer, wherein the motor and the speed reducer are fixedly arranged at the bottom of the rack; a mixing bunker is fixedly arranged at the upper end of the rack; a reticular upper cover is arranged at the upper end of the mixing bunker; two transverse stirring blades connected with the upper end of a rotating shaft are arranged at the bottom of the mixing bunker; the lower end of the rotating shaft is connected with the speed reducer; the two transverse stirring blades are symmetrically arranged on the two sides of the upper end of the rotating shaft; two vertical stirring blades are fixedly arranged on the transverse stirring blades; two inclined stirring blades are symmetrically arranged on the two sides of the upper ends of the vertical stirring blades; one of the two vertical stirring blades is high, and the other of the two vertical stirring blades is low; an air blower is further arranged on the rack; an air blowing opening of the air blower is connected with the upper ends of two air ducts formed on the inner two sides of the mixing bunker through an air blowing pipe respectively; two inclined air outlets in the lower ends of the two air ducts are matched with two inclined surfaces arranged on the two transverse stirring blades.

The invention discloses a portable safe intelligent charging gun. The portable safe intelligent charging gun comprises a right gun body shell and a left gun body shell which form a gun body shell, the right gun body shell is symmetrical to the left gun body shell, the gun body shell is of an integrally-formed smooth transition structure which comprises a complete inner cavity, and a charging assembly is fixedly arranged in the inner cavity and comprises a charging gun head and a charging cable. The portable safe intelligent charging gun is safe and reliable when charging is conducted and long in service life.

The invention relates to the technical field of the power grid and discloses a power distribution network power hierarchical scheduling control method. The method comprises steps step 1, developing acloud system WEB end service module; 2, developing a cloud load identification support module based on association analysis of user power utilization big data and external data; 3, developing a management module of a user and a system. A relational database for supporting WEB end services is included. The method is advantaged in that through load terminal device access, one power consumption condition of each electrical device at home of a user in each time period can be prolonged, the instantaneous power of peak power consumption is reduced when the total periodic load of the power grid is reduced, the real-time power consumption information of the power grid can be received, the power consumption behavior of a user is adjusted, the user is reminded when the electricity price is high, thepower consumption expenditure of the user can be saved, rationality of power dispatching is enhanced, and safe operation of the power grid is ensured.

The present invention discloses a device of resident shunt load participating in power grid interactive control and a control method thereof. The device comprises an intelligent breaker, the intelligent breaker comprises a breaker and an intelligent monitoring module integrated in the breaker; and the intelligent monitoring module comprises a voltage sensor, a current senor, an alarm, a power supply, a microprocessor, a display, a button, a memory, a clock, a communication interface circuit, an opening and closing control module and a power line carrier module. The device of resident shunt load participating in power grid interactive control and the control method thereof can perform remote control, regulate the actual online operation mode of an electric device and automatically give out the optimal usage mode of a resident electric device so as to save the energy and reduce the user electricity cost.

The invention provides an incoming line power peak suppression method based on a multi-power adjusting technology; a load side participates in incoming line power spike suppression, and the real-timepower of any one or more of an adjustable load, a transferable load and a bidirectional power flow load of a power distribution power grid can be controlled, so that the peak suppression of the incoming line power can be realized; the power grid side participates in incoming line power peak suppression, and any one or more of distributed power generation, energy storage, flexible interconnection and direct-current micro-grid modes can be applied, so that the peak suppression of the incoming line power is realized; and meanwhile, the invention provides an incoming line power peak suppression system based on the multi-power adjusting technology. According to the method, the required amount is adjusted, the maximum needed amount is reduced, the basic electric charge is reduced for a large industrial user, and the electricity consumption is saved; the load rate of the transformer is reduced, the transformer overload is prevented, and the utilization rate of the capacity of the transformeris improved; and the virtually high power distribution transformer capacity demand caused by power spikes is reduced, and the capacity expanding cost is lowered.

The invention provides a solar household low-voltage DC power supply system, which comprises a solar energy collection mechanism, a power storage mechanism, a control mechanism and a power output mechanism, wherein the solar energy collection mechanism is used for collecting solar energy and converting the solar energy into electric energy; the power storage mechanism is used for storing the electric energy which is collected and converted by the solar energy collection mechanism; the power output mechanism is used for outputting the power of a storage battery outwards and is matched with a household electric circuit; and the control system controls operation of the system. The system can also comprise an electric supply charging circuit; and when a photovoltaic panel does not have electric energy to output, the charging circuit is automatically switched to convert electric supply into a low-voltage DC through the power storage mechanism, and supplies the low-voltage DC to a family for use through the power output mechanism. According to the system, utilization of the solar energy by the family can be improved; application of the electric supply is partially replaced; the electric supply can also be converted into a DC power supply for the family through the system; consumption of the electric supply is greatly reduced; energy conservation and emission reduction are achieved; and the mankind is benefited.

This invention discloses one method to realize energy saving and electricity net investing through improving the power factors, which reduces the electricity capacity of all apparatus and the low investing of the electricity net and realizes energy saving rate of 15~30 % and improves the power factor of cosphi=0.95~0.99. The solution comprises the following points: it forms the mutual power factor correction compensation system by several compensation units and combined with strong power and weak power and with advanced computer technique, element to realize the compound power compensation.

The invention discloses a polypropylene mixed color stirring device, comprising a rack, a motor and a speed reducer, wherein the motor and the speed reducer are fixedly arranged at the bottom of the rack; a mixing bunker is fixedly arranged at the upper end of the rack; a discharge hole is formed in the lower end of one side of the mixing bunker; two transverse lower stirring blades which are connected with a rotating shaft are arranged at the bottom of the mixing bunker; two 7-shaped vertical stirring blades are fixedly arranged on each of the two transverse lower stirring blades, and one is higher than the other; two transverse upper stirring blades are arranged at two sides of the upper end of the rotating shaft; two L-shaped vertical stirring blades are fixedly arranged on each of the transverse stirring blades, and one is higher than the other; the higher L-shaped vertical stirring blades and the lower 7-shaped vertical stirring blades are arranged in a staggered manner; and the lower L-shaped vertical stirring blades and the higher 7-shaped vertical stirring blades are arranged in a staggered manner.

The invention discloses a mains supply-based intelligent home power consumption control system. The mains supply-based intelligent home power consumption control system comprises a monitoring terminaland a home power distribution terminal, wherein the home power distribution terminal comprises an AC / DC (alternate current / direct current) conversion circuit, a high-frequency transformer, a chargingcontrol circuit, a storage battery, a discharging control circuit, a current detecting module, a voltage detecting module, an intelligent controller and a security module; the intelligent controlleris composed of an electricity parameter collecting and modulating module, a CPU (central processing unit) control module, a display module, a communication module, an alarming module, a clock module,a memory module, a keyboard input module, a switch circuit module, a reset circuit module and a power driving control module. The mains supply-based intelligent home power consumption control system has the advantages of multiple protection, accurate measurement, high reliability, strong practicality and intelligence, low cost and the like and can effectively reduce home power consumption expenditure and help household appliances effectively save energy.

The invention discloses a weightlifting bed device for power generation. The device comprises a bed body, and bed frames fixed to the ground in a bilateral symmetry mode are fixedly arranged on the lower side of the bed body. A box body mounted on the upper side of the ground is arranged on the right side of the bed body; a fixed rod is fixedly arranged on the upper side of the box body; and a connecting rod fixed to the left side of the box body is fixedly arranged on the lower side of the fixing rod. A sliding cavity is formed in the connecting rod; dumbbell bars are arranged in the slidingcavities; a sliding block capable of being connected into the sliding cavity in a sliding manner is mounted on the dumbbell bar; and the dumbbell bar is provided with a load-bearing block used for bearing loads. Compared with a traditional large green power generation mode, the weightlifting bed device is smaller and exquisite, residents can obtain power more easily, household power expenditure issaved, meanwhile, through the adjusting device, when people move the dumbbell up and down, the power generation shaft connected with the power generation component still rotates in the same direction, and therefore power generation efficiency is improved.

The invention discloses a split-type single-phase intelligent electric energy meter, and the electric energy meter comprises a metering detection module disposed in a power distribution box, and a display module disposed in a user room. The metering detection module and the display module are in communication connection through respective encrypted carriers. The metering detection module comprises a voltage sampling module and a current sampling module, wherein the output end of the voltage sampling module and the output end of the current sampling module are respectively connected with an integrated circuit specially used for electric energy metering. The integrated circuit specially used for electric energy metering is connected with a microprocessor, and the microprocessor is connected with a digital display circuit, an operating key, and a charge control card slot of a display module. The electric energy meter achieves the intelligent control through a single-chip microcomputer, and enables a metering function of the intelligent electric energy meter to be separated from a display function. A display screen of the electric energy meter is installed in the user room so that the power utilization amount of a user can be directly observed. The electric energy meter brings convenience to the user for obtaining the power utilization conditions, makes reasonable use of peak and valley power supply conditions to adjust and schedule the household electric appliances, saves the electricity fee, and improves the power utilization efficiency.

The invention relates to a time-controllable based intelligent type modularized wiring board. The time-controllable based intelligent type modularized wiring board comprises a main wiring board module and a plurality of wiring board modules, wherein the main wiring board module and the plurality of wiring board modules are sequentially connected; the main wiring board module comprises a single chip microcomputer with an A / D conversion interface; each wiring board module comprises a relay as well as a current transducer, a voltage transducer and a Header6X2 interface which are connected with the relay; and the single chip microcomputer is connected with the relay by the Header6X2 interface. According to the time-controllable based intelligent type modularized wiring board, the detachable wiring board modules are additionally arranged on a current main wiring board module, so that the wiring board is relatively convenient and flexible to use; the single chip microcomputer control is added on the main wiring board module, and contact control and the current and voltage detecting device are added on each wiring board module, so that all wiring board modules are controlled by the same single chip microcomputer, and the single chip microcomputer is not required to add for each module, thereby reducing the production cost.

The invention relates to a wind power device, in particular to an antifreeze type wind power device. It includes a stabilizing device, a rotating frame, a rotating mechanism, a shrinking mechanism, a linkage mechanism and a blade plate. The rotating frame is rotatably connected to the upper end of the stabilizing device. The rotating mechanism is rotatably connected to the rotating frame. In the mechanism, four linkage mechanisms are evenly connected in the circumferential direction at the right end of the contraction mechanism, and each linkage mechanism is connected with a blade plate. The invention can prevent the wind power device from working normally due to the low-temperature wind power device in the cold area in the field. When the temperature is low, the contraction mechanism drives the fan blades on the four linkage mechanisms to shrink, so that the fan blades used for wind power generation can shrink to the point of rotation. The mechanism works against low temperature to prevent the fan blades used for wind power generation from failing to rotate normally in low temperature and snowy weather, so that the wind power device has the function of self-protection, thereby prolonging the service life.

The invention relates to an internet of things intelligent power-saving device. The intelligent power-saving device comprises a microprocessor chip and an electric quantity sensor and also comprises an executor and a compensator, wherein the electric quantity sensor is connected with the microprocessor chip, the executor and the compensator are connected with the microprocessor chip, the electricquantity sensor is used for detecting power consumption information of a user and sending the power consumption information to the microprocessor chip, and the microprocessor chip is used for generating compensation operation information according to the power consumption information and sending the compensation operation information to the executor and the compensator. The intelligent power-saving device can provide functions of power utilization management, power utilization equipment monitoring, power utilization quality improvement, waveform distortion reduction, higher harmonic increase reduction, power factor improvement, overvoltage frequency reduction, lightning influence reduction and the like.

The invention discloses a two-cylinder clarification tank, which mainly comprises a water discharging canal, a vent pipe, a sludge discharging main pipe, a reagent feeding pipe, a water inlet pipe, an annular sludge suction pipe, baffles, an inner cylinder, an outer cylinder and an annular fixing board; the inner cylinder is clamped in the center of the annular fixing board and is arranged concentrically with the outer cylinder; the outer edge of the annular fixing board is fixedly connected to the upper end of the outer cylinder; an end of the reagent feeding pipe is connected to the water inlet pipe; an end of the water inlet pipe is connected to the upper end of the inner cylinder; the water discharging canal is connected to the upper end of the outer cylinder; the annular sludge suction pipe is installed at the bottom of a tapered part of the outer cylinder and is fixed by bolts; a side edge of the annular sludge suction pipe is connected to the vent pipe; and the center bottom of the annular sludge suction pipe is connected with the sludge discharging main pipe. The two-cylinder clarification tank provided by the invention has advantages that fluid mechanics and physics are used to improve the coagulation-flocculation and precipitation efficiency according to gravity characters and functions of centrifugal force; energy consumption is greatly reduced through hydraulic characters and water processing costs are reduced; discharged water quality is obviously increased; and the land occupation area is decreased and investment of manpower and material resources is reduced.

The invention relates to a novel milling liquid for a four-roll mill and a preparation method thereof. The novel milling liquid for the four-roll mill at least comprises the following components by volume percent: 15 to 25% of polyols, 25% to 35% of trithylenetramine, 5% to 10% of inorganic alkali, 8% to 10% of additive and the balance of water. The novel milling liquid for the four-roll mill changes emulsion into completely synthesized liquid, has long service life which is 6 to 7 times longer than that of the emulsion; and the liquid can not easily generate degeneration, rancidity or bacteria and completely contains no emulsifier or mineral oil.