59results about How to "Keep it clean for a long time" patented technology

The invention discloses a vapor generator, a washing system and a range hood. The vapor generator comprises a body, a heating member and an eduction pipe, wherein the body is internally provided with a heating cavity, and the heating cavity is provided with an inlet and an outlet; the heating member is arranged on the body and used for heating a liquid inside the heating cavity; the eduction pipe is arranged in the heating cavity, the upper end of the eduction pipe is closed, the lower end of the eduction pipe is opened, the lower end of the eduction pipe is connected with the outlet of the heating cavity, and the eduction pipe is provided with a plurality of eduction pores. According to the vapor generator of the embodiment, generated water scale can be prevented from flowing out, the water scale can be further prevented from entering a spraying pipe, the potential danger that the spraying pipe is blocked can be eliminated, and the spraying force and washing effect of the spraying pipe can be guaranteed.

The invention relates to a detergent, in particular to a neutral rust removing detergent. The rust removing detergent comprises the following components in percentage by weight: 0.8-68.0 percent of acidic agent, 0.5-19.5 percent of chelating agent, 0.5-25 percent of alkaline substance and the balance of water. The rust removing detergent has the beneficial effects that (1) rust is removed or red rust is prevented form being produced in a throw-in, spray or sink mode, a non-dynamic film (Passivity Layer) is protected, iron rust or scales are not produced on various types of drainage pipes or water tanks and the like when the rust removing detergent is used in facilities using water such as a boiler, a heat exchanger, a circulating cooler and a water supply pipe, and a clean state is kept for a long time, (2) the detergent is neutral, the metal drainage pipe can be effectively protected, a quick, safe and comfortable working environment is provided, the health of operation personnel is protected, the pollution to water quality and the environment is more effectively reduced, and a better effect is achieved, and (3) the detergent is quick in rust removing, the rust can be completely removed in one hour, and the non-dynamic thin film can be protected.

Provided is an automatic dirt-removing method for an indoor rectangular culture pond utilizing circulating water. The automatic dirt-removing method is characterized in that a baffle plate is arranged at the position, spacing from a pond side at the distance of 50 cm, of a water outlet end of the culture pond; the upper side of the baffle plate is the same as the culture pond in height; left and right sides of the baffle plate are matched with the wall of the culture pond for fixation; a gap is kept between the bottom of the baffle plate and a pond bottom; an inclined blocking net, used for preventing cultured organisms from getting stuck to the gap at the lower portion of the baffle plate, is arranged at the upper end of the baffle plate and the pond bottom on the side where the cultured organisms are present in the culture pond; a tapered dirt-collecting pond is constructed at the back portion of the culture pond and has the bottom having a dirt-discharge pipe and a dirt-discharge valve; after a circulating water system is started, circulating water flows at increased speed when flowing through the gap at the lower portion of the baffle plate; undercurrent is formed in the bottom of the culture pond; after sediments at the bottom of the culture pond are absorbed to the baffle plate along with undercurrent, large sediments entering the baffle plate are left around the dirt-discharge pipe and discharged out of the dirt-discharge valve; small sediments enter the tapered dirt-collecting pond behind the culture pond with water flow and are discharged out of a culture system by means of the dirt-discharge valve after sedimentation and concentration in the tapered dirt-collecting pond; and therefore automatic dirt-removing operation of the culture pond is achieved.

A nano coating is prepared by nano-composite size added with fillers and various auxiliary agents; wherein, the average grain size of the nano powder formed by covering in the nano coating is 35 nanometers; the spherical nano powder has ends with surfaces closed and lotus leaf-like surface microstructure; the nano powder also has tap density of 0.15-0.5g/cm and specific surface area of 125-180/g; the nano coating comprises the following materials by weight percent: 3.8% of ionized water, 10-12% of nano size, 2.5-2.8% of glycol, 5.3-5.7% of hydroxyethyl cellulose, 1.4-1.7% of film forming auxiliary agent, 28-29% of titanium dioxide, 2-3% of calcined kaolin, 2-3% of heavy calcium carbonate, 39-40% of phenylethylene-propyl ethylene acid ester emulsion, 0.5-0.6% of propylene glycol, 0.1-0.2% of bactericide, 0.2-2% of thickener, 0.1% of defoamer, 0.27% of dispersant, 0.06% of wetting agent and 0.2% of pH value regulator. The coating is bactericidal, nontoxic, tasteless and resistant to 300000 times of washing.

An integrated lampblack purifying device comprises a casing with an installation cavity in the middle, a pore plate filter, a flow guiding device, a mesh filter, an ultraviolet purifier and a water tank arranged at the lower end of the casing. A water blocking board is arranged on the lower end portion of the casing and provided with an air inlet communicated with an installation cavity, and the pore plate filter, the flow guiding device, the mesh filter and the ultraviolet purifier are sequentially installed in the installation cavity from bottom to top. A fan installation site communicated with the installation cavity is arranged on the upper end portion of the casing, an exhaust fan mechanism is installed on the fan installation site, a distribution tube mechanism is arranged between the pore plate filter and the flow guiding device, a water pump is arranged on the water tank, and the distribution tube mechanism is connected with the water pump through a water conveying tube. The integrated lampblack purifying device integrates multiple purifying modes including physical purifying, chemical purifying and photocatalysis purifying, achieves classified purifying of lampblack and brings better lampblack purifying effect. The integrated lampblack purifying device has a self-cleaning function and can work continuously and effectively for a long time, and no lampblack attachment can be accumulated in the device.

The invention discloses a dosing-free online cleaning method and device of a reverse osmosis system. According to the method and device, by means of the osmosis principle, reverse osmosis system produced water is used as a cleaning medium for conducting online cleaning on a membrane part; the method specifically comprises the steps that under the situation that a reverse osmosis system high-pressure pump does not halt, a cleaning pump re-injects the produced water into the membrane part, and by controlling the cleaning pump flow and the differential pressure between the water producing side and the water inlet side of the membrane part, the produced water osmoses to the outer side of the membrane part from a membrane part central pipe (the water producing side) under the action of osmoticpressure and is discharged from the concentrated water side along with inlet water of the membrane system raw water side; the device specifically comprises a cleaning tank, the cleaning pump and cleaning valves installed on a water producing pipeline. The grouping cleaning method and device are provided for the large system; the method is simple to implement, the safety of membranes can be ensured, the construction cost is low, and the method and device are suitable for a new system or transformation and upgrading and can be used in the field of reverse osmosis membrane and nanofiltration membrane application of industrial wastewater, sea water desalination, brackish water desalination and the like.

The invention discloses composite heat-insulating paint for exterior walls and a preparation method of the composite heat-insulating paint. The composite heat-insulating paint is prepared from purified water, an inorganic dispersing agent, a defoaming agent, texanol ester alcohol, rutile titanium dioxide, nano-titanium silicate microporous powder, porous expansible microspheres, infrared reflection nano-pigment, a self-crosslinking fluorocarbon emulsion, a photocured elastic emulsion, a macromolecular porous polymer, a nano-zirconium dioxide dispersing agent, a nano-titania colloid, a nano-silica solution, a nano-silver antibacterial agent and a PU thickening agent. The heat-insulating paint has efficient heat radiation reflection performance, good heat insulation and self-cleanness, lasting heat, good decorative performance, wide applicability and great environment friendliness, and a coating is long in service life.

The invention discloses a new type of rice steaming machine, which comprises a control system, a rice steaming machine box, a rice supplying device, a conveying device, a steam generating device and awater injection device. A rice steaming chamber and a steam chamber are separated in the rice steaming machine box; a plurality of rice steaming trays are arranged at equal distances in the rice steaming chamber; the same number of rice inlets with the rice steaming trays are arranged on the sidewall of the rice steaming machine box; an air inlet is disposed on the sidewall of the steam chamber and communicates with the steam generating device; one side of the steam generating device is connected to the rice steaming machine box through a steam pipeline and the other side communicates with the rice supplying device through a drainage pipeline; the water injection device is arranged outside the rice steaming machine box; the water outlets of the water injection device is arranged on the side wall of the rice steaming chamber and the number of the water outlets is the same with that of the rice steaming trays; the rice supplying device is arranged outside the rice steaming machine box;the outlet of the rice supplying device communicates with the conveying device. The invention has the advantage of high intelligence, which leads to uniform heating of each layer of rice, thereby improving the steaming efficiency.

The invention discloses a composite board curtain wall board which is good in corrosion resistance, good in weather fastness, good in structure performance, long in service life and good in decorating effect. The composite board curtain wall board is made of titanium and metal composite boards. The composite board curtain wall board can be widely used in the field of curtain walls.

The invention discloses a lemon cleaning water preparing device system which comprises an electrolysed water processor, a water inlet pump, a main three-way membrane valve, an auxiliary three-way membrane valve and a filtering mechanism, wherein the electrolysed water processor is used for generating sodium hypochlorite. A water outlet pipeline of the water inlet pump is connected to the water inlet end opening of the main three-way membrane valve. The filtering mechanism is connected between the water outlet end opening of the main three-way membrane valve and the auxiliary three-way membrane valve. The auxiliary three-way membrane valve is further connected with a pipeline in front of the water inlet end opening of the main three-way membrane valve. The filtering device system capable of conducting flushing in the positive direction and the negative direction is formed by the two sets of three-way structures and the filtering mechanism. The opening of the water outlet pipeline of the auxiliary three-way membrane valve is connected to an electrolysed water inlet pipeline and connected with the electrolysed water processor through the electrolysed water inlet pipeline. The water outlet of the electrolysed water processor is connected to the electrolysed water inlet pipeline. The lemon cleaning water preparing device system is provided with a backward flushing loop, when the device system does not operate or work directly, equipment can be cleaned through backward flushing in situ, and long-term operation of the system is stable and reliable.

The invention discloses a numerically controlled lathe which is convenient for processing, comprising a base, a lathe control cabinet is fixed above the top of the base, and the lathe control cabinet includes a front panel, and a control panel is embedded and fixed on the front panel of the lathe control cabinet, And the front panel of the lathe control cabinet is fixed with a fixed block, the fixed block is located on one side of the control panel, and the top of the fixed block is provided with an open slot, and the drive motor inside the fixed block is fixed in the open slot, and the drive motor The output shaft is fixed with a connecting rod, and the control panel is located inside the dust cover. The present invention enables the dust cover to be automatically opened and closed through the combined use of the set drive motor, connecting rod and connecting ring, and is flexible to use. At the same time, the dust cover can prevent and protect the control panel from dust, making the control The panel can be kept clean for a long time, which is convenient for the operator to program and facilitate the processing of the CNC lathe.

The invention discloses a high-efficiency liquid homogenization device. The liquid homogenization device is mounted in a storage tank; the liquid homogenization device comprises a tank bottom sinkingbasin welded at the bottom of the storage tank; a discharging opening of the storage tank is welded on the tank bottom sinking basin and liquid in the storage tank is discharged through the discharging opening from the tank bottom sinking basin; a fixed shaft is mounted above the tank bottom sinking basin; one paddle assembling part is rotatably arranged on the fixed shaft; the paddle assembling part comprises a rotatable sleeve which sleeves the fixed shaft, a flow stopping plate which is welded and fixed at the top of the sleeve and a stirring paddle which is welded on an outer side wall ofthe sleeve; and a scraping plate is mounted on the stirring paddle. By adopting the high-efficiency liquid homogenization device disclosed by the invention, a motor-free self-homogenization effect isrealized and the homogenization aim is realized in a pumping process of a mixed solution; and meanwhile, the stirring paddle is used for scratching the bottom to take away tank bottom impurities, a long-period clean state in the tank can be kept and a condition that the impurities are aggregated to block a pipe is avoided.