96results about How to "Guaranteed water flow" patented technology

The present invention discloses one kind of column type membrane assembly and its production process, and aims at providing one kind of column type membrane assembly with long service life and high output water quality. The membrane assembly is provided with water inlet, water outlet, spare port and concentrated liquid exit, and has fibers between the water inlet resin fixing layer and the water outlet resin fixing layer, water orifices inside resin fixing layers, filler inside the water inlet resin fixing layer and flexible resin protecting layer inside the water inlet resin fixing layer and the water outlet resin fixing layer. The membrane assembly has high output water quality and long service life.

The invention discloses a constant temperature flow control method for a heat pump water heater and a double-system unit using the same, relates to a fluid heater utilizing a heat pump and a control method thereof, and particularly relates to a constant temperature flow control method for the heat pump water heater and a double-system primary heating type heat pump water heater unit using the method. The double-system primary heating type hot pump water heater unit comprises a heat pump system A, a heat pump system B, a water supply heating system C and a constant temperature flow control device, wherein PID regulation on water flow is performed according to outlet water temperature; an outlet water temperature set value is set as a target value, and the opening of a constant temperature flow valve is controlled according to a checking value of the outlet water temperature so as to adjust the water flow; when the temperature of a water box is low, a constant temperature water pump and a compressor are started, and the unit operates at constant temperature; when inlet water temperature is too high, a bypass-valve is opened; and one system in a double-system generates a fault and stops operation, the outlet water set temperature is down-adjusted, the water flow of a heat pump unit is guaranteed, and the condensation effect and heating capacity and energy efficiency of the unit are improved, so that the other system without the fault is safely and stably operated in an efficient manner.

The invention discloses an optimal control device and an optimal control method for a primary pump variable flow system. The device comprises a refrigerator, a water pump, air conditioning cabinets, a water pump controller and a pressure difference optimal setting device, wherein the refrigerator, the water pump and the air conditioning cabinets are arranged on a water supply main pipe and a water return main pipe; the pressure difference optimal setting device is electrically connected with the water pump controller, control regulating valves and a pressure difference sensor respectively; and the water pump controller is electrically connected with a frequency converter, a flow sensor, a bypass regulating valve and the control regulating valves respectively. The optimal control method comprises the following steps that: the pressure difference optimal setting device detects valve position feedback signals; the maximum feedback signal is selected, and a valve position reaches or approaches the maximum opening; the water pump controller maintains the pressure difference between the water supply main pipe and the water return main pipe at a set value; and the bypass regulating valve is controlled to ensure that the flow of the refrigerator is not lower than the minimum flow allowed by the refrigerator. The device and the method have the advantages that the safe operation of a water system is ensured, and the requirement of each tail end air conditioning cabinet on water flow is met; and the device and the method can be widely applied to the fields of building energy conservation and air conditioning control of airports, stations, wharves and the like.

Relating to the field of water environment ecological restoration, the invention provides a high efficiency combined restoration technology for urban and rural river polluted river water bodies. The invention comprehensively utilizes a solar energy micropore aeration technology, an ecological base, a microorganism-enzyme composite reinforcement restoration technology, an ecological floating island, aquatic animal throwing and other methods to reduce nitrogen, phosphorus and other organic matters and pollutants in water bodies, thus purifying river water bodies, optimizing the aquatic ecosystem, and simultaneously achieving a landscape optimizing effect.

The invention relates to a reverse osmosis water purifier. The reverse osmosis water purifier comprises pre-treatment filter elements, a booster pump, and reverse osmosis filter elements. A tap water inlet is connected with the first pre-treatment filter element, the booster pump, the second pre-treatment filter element and the reverse osmosis filter elements sequentially; the condense water branch and the filter water branch of the reverse osmosis filter elements are connected with a condense water outlet and a purified water outlet respectively; two reverse osmosis filter elements are connected in parallel, the condense water branches of the two reverse osmosis filter elements are connected in parallel and then connected to a condense water outlet, and the filter water branches of the two reverse osmosis filter elements are connected in parallel and then connected to a purified water outlet; and a liquid flow meter is arranged between the booster pump and the pre-treatment filter elements and the booster pump starts or stop working based on the flow rate signal detected by the liquid flow meter. The water purifier adopts the parallel connection way of the reverse osmosis membrane filter elements, and uses the liquid flow meter to control the booster pump to realize water pressure boosting, and guarantee water outflow. The water purifier has safe water outflow, is simple and convenient to operate, and has no water storage tank.

The invention relates to a pipe, in particular to a pipe repairing device. The pipe repairing device comprises a movable main frame, a first control display screen, a second control display screen, asupplementary cutting mechanism, a temporary water introducing mechanism, a left fixed grinding mechanism, a right fixed grinding mechanism, a first hot melting mechanism and a second hot melting mechanism. The first control display screen is arranged on the left portion in the top end of the movable main frame. The pipe repairing device achieves the effects that when a broken water pipe is repaired, normal water introduction of the two ends of the water pipe is guaranteed; when the water pipe is repaired, water pipes at the left end and the right end do not need to be moved, a small broken crack can be repaired, and the broken water pipe can also be repaired; the water breaking time of a user can be greatly shortened, then economic losses are reduced, and waste of water resources is avoided during water introduction.

The invention relates to an instant-heating water purifier and a water channel control system thereof. The water channel control system comprises a water supply pipeline connecting a raw water sourceand a water outlet of a water purifier, a purification mechanism and a heating mechanism successively distributed on the water supply pipeline along a water supply direction, wherein the water supplypipeline is connected with a preheating flow path and an emptying flow path; two ends of the preheating flow path are arranged between the purification mechanism and the heating mechanism, a first control valve is arranged between two ends of the preheating flow path on the water supply pipeline, and the preheating flow path is provided with second control valves and preheating tanks with built-inpreheating units; and an inlet end of the emptying flow path is arranged between the heating mechanism and a water outlet of the water purifier. By adopting the instant-heating water purifier water channel control system, the use of cold water, warm water and hot water can be integrated in the same water outlet of the water purifier, so that the application convenience is effectively improved, and the user experience is improved; and by configuring the preheating flow path and the emptying flow path, the hot water outlet response speed of the water purifier can be effectively increased.

The invention discloses a diversion drainage structure for a tunnel inside in a water conservancy and hydropower project and a construction method for building the diversion drainage structure, and belongs to the technical field of design and construction of buildings in the water conservancy and hydropower project. The invention provides the diversion drainage structure for the tunnel inside in the water conservancy and hydropower project and the construction of the building construction method. The diversion drainage structure for the tunnel inside in the water conservancy and hydropower project is short in construction period, low in construction investment cost and capable of meeting the requirement of upward moving of an opening of a diversion drainage tunnel. The construction method includes that a section of a drainage tunnel is constructed on the upstream side of a drainage tunnel body in a river flow direction, a construction maintenance diversion tunnel which communicates the drainage tunnel and the drainage tunnel body is constructed before the drainage tunnel and the drainage tunnel body are communicated, the requirement for temporary diversion drainage of an upstream river channel is met, then the connection position of the drainage tunnel and the drainage tunnel body is completely broken through, a waste upper section of the drainage tunnel body is blocked, finally, simultaneous drainage of the drainage tunnel and the downstream section of the drainage tunnel body as well as the drainage tunnel, the construction maintenance diversion tunnel and the downstream section of the drainage tunnel body is realized.

The present invention relates to a pipe type sullage micro-filtration processing device, comprising a reaction groove, a concentration groove equipped next to the said reaction groove, a circulating power pump, a micro-filtration membrane pipe adopting cross-flow filtration and a cleaning buffer column, wherein micro-filtration membrane cross-flow filtration technology and pipe connection technology coordinating with cleaning buffer column and air intake valve group are adopted in order to implement automatic backwashing function through joint operation; the invention adopts reaction groove and concentration groove for sullage pretreatment through overflow mode cooperation, so as to guarantee water yielding effect and water yielding flux of system.

The invention discloses a structure integrating reservoir pre-discharging and ecological flow discharging. The structure comprises a flow guide hole, a communicating pipe and a vertical shaft which is vertically arranged. The reservoir communicates with the flow guide hole through the vertical shaft. The communicating pipe is attached to the inner wall of the vertical shaft and extends to an outlet of the flow guide hole. The elevation of an inlet of the communicating pipe is lower than a normal water storage level of the reservoir and is higher than a dead water level of the reservoir. A stilling pool is arranged at an outlet of the communicating pipe. A blocking body is arranged at the outer portion of the part, in the flow guide hole, of the communicating pipe. A first valve controlling the communicating pipe to be opened and closed is arranged at the tail end of the blocking body. A second valve used for adjusting the flow of the communicating pipe is arranged at the tail end of the communicating pipe. By means of the structure integrating reservoir pre-discharging and ecological flow discharging, floods needing pre-discharging in the reservoir or ecological flow are discharged to the downstream part in time and in order. Compared with a common pre-discharging facility bottom hole discharging hole, the structure integrating reservoir pre-discharging and ecological flow discharging is simple in construction structure, economical in construction cost and convenient to maintain, good technical economy popularization value is achieved on a project which is small in rain collecting area and needs to be provided with a pre-discharging facility, and the structure is suitable for the reservoir high in reservoir slit elevation.

The invention relates to an ordinary heat exchanger with tubular passages and discloses a cathode protection method for a heat exchanger subassembly. The cathode protection method is characterized in that an anode material with the activity superior to that of a pipe body is connected with the inner wall of a water pipe in the heat exchanger subassembly, and when the water pipe of the heat exchanger is corroded, the anode material automatically releases electrons to the corroded part so as to protect the water pipe of the heat exchanger. The invention further provides the heat exchanger subassembly based on the cathode protection method. The heat exchanger subassembly comprises a heat exchanger shell and a heat exchanging pipe. The heat exchanger subassembly is characterized in that a cathode protection device is connected to the inner wall of the heat exchanging pipe; and the heat exchanger subassembly is a main heat exchanger or a condensing heat exchanger. Compared with the prior art, the cathode protection method for the heat exchanger subassembly and the heat exchanger subassembly have the advantage that phenomena of perforation and water leakage of the heat exchanging pipe are solved by carrying out electrochemical corrosion protection from the inner part of the heat exchanging pipe.

The invention relates to a nozzle which is provided with a body and a head. An inner runner of the nozzle extends to the head from the body, the head is provided with an axial outflow passage and a lateral outflow passage, and the sectional area of the inner runner is suddenly decreased near the junction of the body and the head. According to the nozzle, the outflow velocity of all the outflow passages of the head can be increased, when the nozzle is applied to a water purifier, the scouring action on membrane wires can be enhanced, and adhesion of dirt on the membrane wires is reduced. The invention further relates to the water purifier which is provided with the nozzle.

The invention relates to a blast furnace cooling wall water pipe repairing method, and belongs to the technical field of cooling wall repairing. The method comprises the following steps that a, pipe penetrating water returning bags are additionally arranged; b, a damaged water pipe is confirmed; c, a hard pipe is arranged; d, the damaged water pipe is subjected to pipe penetrating; e, a miniaturecooler is arranged; f, a softened water pump is arranged; and g, step-by-step water transferring is carried out. According to the method, the resistance loss of softened water flowing in the water pipe is reduced, the necessary water flow is ensured, and the cooling strength of pipe penetrating is improved; the blast furnace blowing-down time is shortened; the damaged cooling water pipe can be quickly confirmed, and the accuracy is 100%; the resistance loss of a hose is favorably reduced, and the subsequent trepanning operation of the hard pipe is facilitated; by arranging the miniature cooler, the cooling function of the damaged water pipe which cannot be subjected to pipe penetrating is repaired; and after blast furnace reblowing, the softened water pump is additionally started, and a step-by-step water quantity adjusting scheme is adopted, so that the cooling strength of the cooling water pipe is ensured.

The invention belongs to the technical field of riverway residue removing, and particularly relates to residue removing equipment for a riverway. The residue removing equipment for the riverway comprises collecting shells, a filtering layer, a partition layer, a mounting shell, a drainage layer, scraper blades, adjusting modules and an anti-blocking structure. According to the equipment, garbage or branches on the riverway is automatically collected in the specified collecting shells through the reciprocating sliding scraper blades, and then manual unified treating is carried out; and the clearing efficiency is improved; the drainage layer is designed, it is guaranteed that the water level can be higher than the bottom surface of the drainage layer, and the situation that water enters themounting shell to corrode related transmission structures in the mounting shell is avoided; through the anti-blocking structure designed by the residue removing equipment, residues and the branches blocked on a filter screen can be pushed when the scraper blades scrape towards two sides, so that the residues and the branches blocked at filter holes in the filter screen are easily separated from the filter screen under the action of the scraper blades; and when the scraper blades does not scrape, the anti-blocking structure retracts, and the water flow is guaranteed.

The invention discloses a carbon rod filter element. A package structure of the filter element is changed to change the water flow path, and water flow can be filtered twice or multiple times, so that efficient filtering is achieved; the carbon rod filter element is a sintering activated carbon rod or an efficient residual-chlorine-removal activated carbon rod or an antibacterial and bacterium-resistant activated carbon rod or an anti-scaling carbon film or a weak-base type activated carbon rod or a heavy-metal-removal type activated carbon rod; the modes that a sealing rod is packaged in the center of the filter element, the inner wall of the filter element is not completely sealed, and the outer wall of the filter element is not completely sealed are utilized to change the water flow path. According to the carbon rod filter element, the filtering effect of the filter core can be effectively enhanced, consumption of the filter core is reduced, a filtering device is integrated, and cost can be lowered.

The invention discloses a water inlet device of a pressure-superposed water supply pump station. A main water inlet pipe is arranged behind a water supply network, and a water manometer for measuring input water pressure or a thermometer is mounted on the main water inlet pipe. A normally-open pipe and a bypass pipe which are connected in parallel are arranged behind the main water inlet pipe. The caliper of the bypass pipe is 1 / 2-1 time that of the normally-open pipe. An electromagnetic valve for controlling the normally-open pipe to be opened or closed is arranged on the normally-open pipe. A flow control valve for controlling the water flow of the bypass pipe is mounted on the bypass pipe. In addition, a control unit and a flow stabilizing compensator are arranged, the normally-open pipe and the bypass pipe are provided with outlets respectively, and the outlets are communicated with a user water pipe after being communicated with the flow stabilizing compensator. The water manometer is connected with the control unit through a signal line, and the control unit is connected with the electromagnetic valve, the flow control valve and a starting component of the flow stabilizing compensator through control lines. The flow and network pressure can be reasonably controlled under the condition of small and large pipe network pressure and too low temperature.

The invention discloses a soil water-gas collapsibility-consolidation-penetration combined determinator. The determinator comprises a collapsibility-consolidation-penetration permeameter, a water seepage coefficient determination system and an air permeation coefficient determination system. The collapsibility-consolidation-penetration permeameter comprises a base and a cutting ring. The cutting ring is filled with a soil sample. The top end of the soil sample is provided with a pressurization control system. The pressurization control system is provided with a dial indicator for determining displacement of a piston in the pressurization control system and a compression gauge for determining air pressure. The water seepage coefficient determination system and the air permeation coefficient determination system are connected to the collapsibility-consolidation-penetration permeameter through pipe ports. The determinator utilizes a modularization design, can carry out a standard height soil sample test, can prepare soil samples with different heights according to demands and test them and can realize simultaneous determination of a penetration coefficient, an air permeation coefficient, a concretion coefficient, a loess collapsibility coefficient and a penetration coefficient and air permeation coefficient after loess collapse. The determinator has the characteristics of good flexibility, short test period, stable and reliable pressure control, labor and time saving and high cost performance.

The invention discloses a sewage treatment tank and a sewage treatment system, and the sewage treatment tank comprises a tank body having a tank cavity, wherein one side wall of the tank cavity is provided with a sundry outlet, and the bottom contour of the sundry outlet is V-shaped; filter plates which are arranged in the pool cavity and are provided with filter holes, wherein the two filter plates are downwards and obliquely arranged towards the symmetric center line, and the upper surfaces of the two filter plates are flush with the V-shaped outline at the bottom of the impurity outlet; a movable plate which is movably connected to the bottom of the filter plate and provided with a jacking column, wherein the jacking column can move along with the movable plate and is inserted into the filter hole; and a push plate which can movably push the impurities on the filter plate out of the impurity outlet. The two filter plates are used for filtering impurities, and the two filter plates incline downwards towards the middle, so that the impurities are automatically concentrated between the two filter plates, and then the push plate is used for pushing out the impurities; the movable plate moves to insert the jacking columns into the filtering holes, and after impurities in the filtering holes are jacked out, the impurities are prevented from being accumulated in the filtering holes; the water flow capacity and the sewage treatment efficiency are ensured.

The invention provides a magnetization treatment technique for agriculture and forestry production and soil ecological remediation. Irrigation water flows through a magnetization water treater with a special structure and magnetic field strength so as to irrigate crops, fruit trees, frost, flowers and vegetables, then the growth is remarkably promoted, and the yield and the quality are improved; the utilization rates of soil nutrient components are remarkably increased, the use amount of fertilizers is reduced, and the economic benefits of planting industry are improved; the soil degradation caused by use of excessive pesticides and chemical fertilizers is effectively remedied, and the desalting process of salinity soil is accelerated; salt-tolerant plants can be irrigated by using hypersalinity underground water, the land utilization rate and the productivity of an area short of fresh water resource are improved, and the ecological remediation progress in a salination area is accelerated.

The pipe network heat storage system comprises a heat supply pipe network, the heat supply pipe network comprises a heat supply network initial station, a heating station, a circulating water pump, a primary network water return pipe and a primary network water supply pipe, and a heat supply network water bypass is installed between the primary network water supply pipe and the primary network water return pipe; an adjusting assembly is arranged on the heat supply network water bypass and used for adjusting the flow and pressure of heat supply network water flowing through the heat supply network water bypass, and the heat storage and heat release functions are achieved through an existing heat supply network. For a cogeneration heat supply system, the heat storage capacity of an existing huge heat supply pipe network is fully utilized to increase the peak regulation capacity of a cogeneration unit, and the huge investment cost of a newly-built energy storage device is saved.

The invention relates to a target cooling back plate and a preparation method thereof. A base of the target cooling back plate adopts an integrated design of flange connecting pieces of a water inletand a water outlet as one part of the base, and correspondingly, an inclined water way is formed between a cooling water way in the base and the water inlet / outlet, so that the leakage problem in thewater inlet / outlet is effectively prevented. The preparation method comprises the following steps that: the thickness of a cover plate of the target cooling back plate is increased to 4.5-5mm; the sand blasting treatment is performed on the inner surface of the cooling water way of the base; the cover plate and the base are welded by vacuum brazing to obtain a target cooling back plate crude product; and then, the machining is performed by dint of support and fixation of bosses with the same heights to obtain the target cooling back plate, so that the excellent welding condition can be guaranteed, the machining is convenient, and the repeated utilization rate of the target cooling back plate can be effectively increased.

The invention relates to the technical field of cleaning machines, and discloses an ultrasonic cleaning machine. The ultrasonic cleaning machine comprises a rack, wherein a first ultrasonic cleaning tank, a second ultrasonic cleaning tank, a pure water cleaning tank and a hot air drying tank are sequentially arranged at the upper end of the rack, and an overflow opening is formed in the surface of the pure water cleaning tank; heating plates are arranged at the lower end of the first ultrasonic cleaning tank and the lower end of the second ultrasonic cleaning tank, a transducer is arranged on the inner side of the rack, a water supply system and a drainage system are arranged at the lower end of the transducer, a filter is arranged on the inner side of the water supply system, and a circulating pump and a circulating filtering system are arranged on the inner side of the drainage system; and a hot air drying system is arranged on the inner side, close to the lower end of the hot air drying tank, of the rack. The ultrasonic cleaning machine has the cleaning and heating functions, the solubility and the dissolving speed of a cleaning agent can be improved, cleaning liquid can be circulated, the cleaning effect is guaranteed, and water stains on the surfaces of cleaned objects can be dried.

The utility model discloses a linear discrete movable diversion pier for a water inlet structure of a pump station, and belongs to the technical field of pump station engineering. Under the conditionthat a navigation function of a ship lock is ensured, the linear discrete movable diversion pier is arranged on central axis of an inlet of a water inlet tank; the number of the discrete diversion piers is determined according to the actual flow state of the water flow; the number of the springs is not more than 3; the water flow transition process is intervened through the linear guide piers; theeffects of shunting and guiding are achieved; the flow deflection effect of water flow is weakened; the possible conditions of vortex and backflow are destroyed; local friction loss is improved; thewater flow energy is reduced; the water flow speed is reduced; the flow velocity distribution and pressure distribution conditions in the water inlet pool are improved; the pressure of the main flow area is kept within a certain range as much as possible; and finally the optimization effect of the water pump water inlet pipe suction condition is achieved. By adjusting gaps of the flow guide piers,the water inlet flow state of the water pump is guaranteed, vibration and noise of the pump station are prevented, and the hydraulic performance and the operation stability of the water pump unit arefurther improved.

The invention provides a washing machine and a control method for cleaning a filtering assembly of the washing machine. The washing machine comprises a circulating water filtering system, a flow measuring device and a control device; the circulating water filtering system is provided with the filtering assembly which is configured to be used for filtering water pumped from a washing cylinder of the washing machine to enable the water to be circulated to the washing cylinder to be reused in a clear water washing program of the washing machine; the flow measuring device is configured to be used for measuring the first produced water flow of the filtering assembly after the circulating water filtering system is started; the control device is configured to be used for judging whether the filtering assembly needs to be chemically cleaned or not according to the measured first produced water flow. According to the washing machine and the control method for cleaning the filtering assembly of the washing machine, whether the filtering assembly needs to be chemically cleaned or not can be judged according to the produced water flow of the filtering assembly, the cleaning pertinence and timeliness of the filtering assembly are effectively guaranteed, the phenomenon that ultrafiltration membrane damage is caused by the over large pressure due to the fact that too many pollutants are retained on an ultrafiltration membrane is avoided, and prolonging of the service life of the filtering assembly is facilitated.

The invention discloses a cylinder cover double-layer water jacket structure of a cross-flow cooling engine, and relates to a cylinder cover water jacket structure. Four groups of combustion chamber areas are arranged at the rear end of an upper-layer water jacket, each group of combustion chamber areas comprises a spark plug area, an intake valve area and an exhaust valve area, a lower-layer water jacket is stacked and fixed at the front end of the bottom of the upper-layer water jacket to form a double-layer structure, and the four groups of combustion chamber areas of the upper-layer water jacket are exposed; two water feeding machining channels are formed in the positions, at the front end of the double-layer structure, between the lower-layer water jacket and the upper-layer water jacket in a vertically communicated manner, eight water jacket water feeding openings are formed in the rear end of the bottom face of the lower-layer water jacket, four nose bridge water feeding openings and five cylinder cover water feeding openings are formed in the bottom face of the upper-layer water jacket, and five cylinder cover water outlets and eight water jacket water outlets are formed in the bottom face of the upper-layer water jacket; and a water flow guide bulge is arranged in a cavity of the upper-layer water jacket. The double-layer water jacket structure is designed for the four-cylinder engine, a cross-flow form of water inlet at the exhaust side and water outlet at the air inlet side is adopted, the cooling uniformity is guaranteed, and the thermal load is effectively reduced.

The invention discloses a treatment device for cooling water circulation. The treatment device comprises a first water cooling circulation system and a stand-by second water cooling circulation system; the first water cooling circulation system comprises a gas-water separating unit, a main circulation pump, a three-way reversing valve, a heating filtering assembly, a plate-type heat exchanger, a heater and a main filter, wherein the main circulation pump communicates with the gas-water separating unit, and the three-way reversing valve, the heating filtering assembly, the plate-type heat exchanger, the heater and the main filter communicate with the main circulation pump; the three-way reversing valve, the heating filtering assembly and the plate-type heat exchanger communicate with one another, and circulating lines of a water cooling medium can be automatically switched by the heating filtering assembly; and the heater communicates with the heating filtering assembly, and the main filter communicates with the heater. The treatment device is small in size, not limited by space and provided with the stand-by cooling system, and the device does not need to stop during maintenance and can normally work; and gas in water can be separated, and the stable pressure of the whole system is guaranteed.

The invention relates to a water path system of a water purifier. The water path system comprises a raw water pipeline and a raw water treatment pipeline; the raw water pipeline is connected with a water inlet of the water purifier; the raw water treatment pipeline is connected with the water inlet and a water outlet of the water purifier; and a raw water tank, a power unit and a control switch for controlling the on-off of the raw water pipeline are sequentially arranged on the raw water pipeline along the water supply direction. Raw water is provided for the water purifier through the raw water tank, so that the water purifier can be used in a place without any water source, and thus the problem that in the prior art, a water purifier cannot be used in an area where top water pipes cannot be connected is solved. The raw water treatment pipeline can further be in bypass connection with a preheating flow path, and the use of cold, warm and hot water from a same water outlet of the water purifier can be realized, so that the use convenience is effectively improved, and the user experience is improved. Preheating water with a certain temperature can be pre-stored in a preheating tank, and when hot water is needed, the heating mechanism is used for reheating the preheated water, so that the response speed of water outlet of hot water of the water purifier can be effectively increased.

The invention relates to the technical field of thermal stamping, in particular to a parallel water supply cooling system for a thermal stamping mold. The system comprises at least two forming male heads and a water separation plate; each forming male head is provided with a cooling water way; the water separation plate is used for independently feeding and collecting water for each forming male head; and the at least two forming male heads form a parallel cooling circulating water way. The water separation plate is used for independently feeding and collecting water for each forming male head, namely, the water is fed in each forming male head and the water is circulated to the water separation plate for being collectedafter the water flows through the cooling water way; each forming male head has a single circulating water way; and at least two forming male heads synchronously perform independent water feeding and collection through the water separation plate, and form the parallel cooling circulating water way, so that the cooling water circulating route is largely shortened, the cooling water circulation is quickened, the mechanical performance in each position of stamped products is uniform, the product performance is stable, the service life of molds is prolonged, and the practicability is higher.

The invention discloses a water outlet device. The water outlet device is provided with a water outlet flow channel, and the water outlet flow channel is provided with a vortex cavity and an air-watermixing cavity in the water outlet direction; the air-water mixing cavity communicates with the atmosphere through a bypass air passage; and the vortex cavity communicates with the air-water mixing cavity through a center hole and at least two first holes evenly distributed around the center hole in the circumferential direction. By the adoption of the structure, compared with the prior art, air can be stably sucked, flocculation and bounce are not prone to happening, and therefore stable sparkling water is output.

The invention discloses a quick fire-fighting pipeline joint, and relates to the technical field of fire-fighting equipment. The quick fire-fighting pipeline joint comprises a pipe head, a sleeving device, an inserting device, a reinforcing device and a fastening device, and is characterized in that the sleeving device is installed at the bottom of the pipe head, the inserting device and the reinforcing device are installed in an inner cavity of the sleeving device, and connecting pieces are symmetrically welded to the surface of the pipe head. According to the quick fire-fighting pipeline joint, under the condition that no gap exists between a water pipe and the sleeving device, an adjuster is pulled out of an insertion hole, a fastening ring piece is pressed at the moment, due to the torsional structure, the diameter of the fastening ring piece can be reduced during pressing, two side clamping plates are pulled to be attached to the surface of the sleeving device, finally, clamping teeth are engaged with the surface of a main water pipe and then clamped to an inserting opening, the stability of rapid connection is achieved, at the moment, the fastening ring piece is curled up and connected to the surface of the sleeving device in a sleeving mode, and the wrapping performance of connection between the sleeving device and the water pipe is enhanced again.