170results about How to "Improve descaling efficiency" patented technology

A nozzle orifice of a nozzle 1 comprises a tapered segment 16 extending from an elliptical discharge orifice 15 and having a taper angle θ of 30 to 80°, and a large-diameter segment 18 continuing with the tapered segment, and scale on a steel plate is removed by discharging water from the nozzle at a distance between discharge orifice 15 and the steel plate of not more than 600 mm, a pressure of 5 to 30 MPa, and a discharge flow rate of 40 to 200 l/minute. The ratio of the inner diameter of large-diameter segment 18 relative to the minor diameter of the discharge orifice 15 is not less than 3 and less than 7. Also, the discharge flow from the nozzle spreads in a single direction (width direction) within a plane perpendicular to the central axis of the nozzle and the erosion thickness angle is 1.5 to 30 in the direction (thickness direction) perpendicular to the width direction. Such a descaling nozzle enables that scale is removed efficiently at low pressure and/or low flow rate while restraining the cooling of a steel plate.

The invention provides a method for designing equipment removing oxide skin on a surface of a slab band. The method comprises design of a brush roll transmission device, design of an upper brush roll synchronous device, design of an auxiliary transportation device, design of an oxide skin sweeping device, design of a dust collecting device and design of a matched frame, wherein the design of the brush roll transmission device is used for removing the oxide skin on two surfaces of the slab band; the design of the upper brush roll synchronous device is used for leading the axial lead of the upper brush roll not to incline when the upper brush roll is adjusted and displaced; the design of the auxiliary transportation device is used for transportation of the slab band in and out the brush roll; the design of the oxide skin sweeping device is used for sweeping the oxide skin on the surface of the slab band; the design of the dust collecting device is used for collecting oxide skin dust which is brushed by the brush roll or raised by sweeping; and the design of the matched frame is used for installing and fixing the device design. The method can effectively remove the oxide skin attached on the surface of the slab band under high temperature state and sweep the oxide skin cleanly, and also has the function of dust collection.

The invention discloses a high-frequency electromagnetic water purification system in the technical field of clean water treatment, which comprises a high-frequency modulation wave generator, a voltage pre-amplifier, a high-frequency power amplifier, an electromagnetic water energy converter, a state parameter monitor, a signal processor and a stabilized power supply. The high-frequency electromagnetic water purification system can effectively prevent and remove scale from the wall of a water pipe, can detect the water flow and electrical conductivity of a circulating water system in real time, and can conduct identification and operation according to the water flow and the electrical conductivity so as to determine the best electromagnetic energy power to be transmitted to the treated water quality; therefore, the effects of high efficiency and energy saving are achieved when the water treatment is implemented.

The invention provides an electrochemical water scale removal device, which comprises a water scale crystal nucleus generation unit for electrochemical water treatment, a rotating cathode and an anode, wherein the water scale crystal nucleus generation unit comprises a tank body; a water inlet and a sewage discharge outlet are formed in the bottom of the tank body; a water outlet is formed in the top end of the tank body; the rotating cathode is arranged in the tank body; the anode is arranged in the tank body. According to the device, an aqueous solution is electrolyzed to generate OH- in the vicinity of the rotating cathode, an alkaline solution with a pH value of 14 is obtained in an interface layer in the vicinity of the rotating cathode, water scale crystal nucleuses formed on the surface of the rotating cathode and in the interface layer in an electrochemical process are diffused into the solution by virtue of the rotating cathode, and an ultra-large crystal growth surface and crystal active growth points are provided for scaling ions in the solution by virtue of a great number of crystal nucleuses; the surface areas of a great number of tiny crystal nucleuses are multiple times larger than that of the rotating cathode, so that the crystallization and precipitation probability of the scaling ions is greatly improved, and the scale removal efficiency is also improved.

The invention provides an internal descaling and external defrosting novel air conditioner applying ultrasonic oscillators. The internal descaling and external defrosting novel air conditioner comprises an outdoor unit and an indoor unit. The outdoor unit and the indoor unit are connected through a pipeline. The indoor unit comprises the indoor ultrasonic oscillators and an indoor heat exchanger, wherein the indoor ultrasonic oscillators are located around the indoor heat exchanger. The indoor heat exchanger is a shell and tube heat exchanger and comprises fins, U-shaped pipes, an air inlet pipe, process reinforcement tubes, a liquid outlet pipe and bridging elbows. Each U-shaped pipe comprises two free ends extending in the same direction in parallel, and a bent part located between the two free ends, wherein the free ends are inserted in the corresponding fins. Ports of the free ends of every two adjacent U-shaped pipes are connected through the corresponding bridging elbow. The outdoor unit comprises a capillary tube, a compressor, an outdoor heat exchanger, the outdoor ultrasonic oscillators, a four-way valve, air-liquid separators, a filter and a check valve, wherein the outdoor ultrasonic oscillators are located around the outdoor heat exchanger. By means of the internal descaling and external defrosting novel air conditioner, ultrasonic non-stop on-line internal descaling and external defrosting can be achieved, the stable running environment of the air conditioner is ensured, and the service life is prolonged.

The invention provides a warship hull descaling and flow detecting system which comprises a power supply system, a control system, a charging system, an energy storing system, a plasma shock wave generating mechanism, a flaw detection monitoring system, a surface flushing mechanism and an adsorbing and walking robot. When the system runs, probes of the plasma shock wave generating mechanism, the surface flushing mechanism, the adsorbing and walking robot and the flaw detection monitoring system are in underwater operation. Organisms attached to the surface of a warship hull are subjected to primary cleaning by the aid of strong sound shock waves generated from discharging of underwater plasmas, the organisms attached to the surface of the warship hull fall off or are loosened, and then the loosened attachments are cleaned by the aid of the surface flushing mechanism. The descaling effect can be detected through the flaw detecting system after descaling operation, and non-destructive detection can be performed on the surface of the warship hull.

The invention relates to a rotating negative electrode scale scraping and removing device which comprises negative electrode conductive columns 1, negative electrode plates 2, a rotating shaft 6, positive electrode plates 7 and scrapers 8. The negative electrode conductive columns 1 are closely attached to the negative electrode plates 2. The negative electrode conductive columns 1, the negative electrode plates 2, the scrapers 8 and the positive electrode plates 7 are sequentially connected to the rotating shaft 6 in series. A central limiting and correcting block 3 is arranged between the scrapers 8 and the positive electrode plates 7. The negative electrode plates 2 rotate around the rotating shaft 6. A jackscrew 4 is arranged on one side of each negative electrode conductive column 1. Currents are guided into the negative electrode plates 2 by the negative electrode conductive columns 1. In the rotating process of the negative electrode plates 2, the scrapers 8 are closely attached to and scrap the surfaces of the negative electrode plates 2. The purpose of inputting currents to the rotating negative electrode plates without electric brushes is achieved, electrode intervals are easily decreased to the maximum degree, and the scale scraping and removing effects of the negative electrode plates are improved.

The invention provides an electrochemical water scale removal device. The device comprises a water scale crystal nucleus generating unit used for electrochemical water treatment, wherein the water scale crystal nucleus generating unit comprises a tank body, diaphragms, cathodes and an anode; a water inlet and a drain outlet are formed in the bottom of the tank body; the diaphragms are arranged inside the tank body and divide the tank body into cathode chambers and an anode chamber; the cathodes are arranged inside the cathode chambers; the anode is arranged inside the anode chamber; a catholyte water outlet and an anolyte water outlet are formed in the top end of the tank body. The electrochemical water scale removal device provided by the invention has the beneficial effects that anode electrochemical products and cathode electrochemical products do not interfere with each other via the diaphragms in the device; the catholyte containing plenty of crystal nuclei is generated in the cathode chambers and the plenty of crystal nuclei provide super-large crystal growth surfaces and crystal active growth points for scaling ions in the solution; as the surface areas of plenty of tiny crystal nuclei are many times larger than the surface areas of the cathodes, the probability of separation of the scaling ions by crystallization is greatly increased and the descaling efficiency is also improved.

The invention provides an electrochemical water scale removing device which comprises a water scale crystal nucleus generation unit and a water scale crystal nucleus growth and separation unit, wherein the water scale crystal nucleus generation unit is used for electrochemical water treatment. The water scale crystal nucleus growth and separation unit is used for growing crystal nucleuses generated by the water scale crystal nucleus generation unit and separating water scale and comprises a filtering area, an inclined plate settling area and a sludge discharge bucket, the filtering area is provided with a filtering screen and an outlet, the inclined plate settling area is positioned below the filtering area, communicated with the filtering area and provided with an inclined plate, the sludge discharge bucket is positioned below the inclined plate settling area, and a cavity is formed between the inclined plate settling area and the sludge discharge bucket and provided with an inlet, so that water scale crystal nucleus containing water generated by the water scale crystal nucleus generation unit enters the cavity along the tangential direction and is sequentially subjected to cyclone separation and rectification in the cavity. The invention further provides a method for removing the water scale according to the electrochemical water scale removing device.

The invention provides a gas turbine compressor washing device and method. The device comprises a heat exchanger located behind the exhaust section of a gas turbine and a waste water filtering and recycling device of a gas turbine washing pollution discharge water tank. A compressor washing pipeline passes through the heat exchanger before entering a compressor. The heat exchanger heats gas turbine washing water through waste heat of tail gas of the gas turbine, the washing water temperature is increased, and the difference value between the washing water temperature and the wheel-wheel temperature is controlled to be within a set range. By means of the waste water filtering and recycling device of the gas turbine washing pollution discharge water tank, waste water in the water tank is filtered and recycled and flows back to a gas turbine washing tank to be recycled, and washing water is greatly saved. The washing cost is reduced, meanwhile, the compressor washing efficiency is improved, descaling is effectively achieved, the compressor performance can be basically recovered to the optimum condition, and it is ensured that a unit is safely and efficiently operated.

The invention relates to a descaling device and method, in particular to a descaling device and method of a circulation cooling water system. According to the descaling device of the circulation cooling water system, a water tank, a pump, a valve, a cooling part and a flow meter are connected into a closed loop through a pipe, a scale inhibitor storage tank is connected onto the water tank, and anadjustable permanent magnet is arranged on the pipe. According to the descaling method, in order to improve the descaling efficiency, a scale inhibitor is added after the magnetic field runs for a certain period, remaining scaling ions are removed by the scale inhibitor, the number of hydrogen bonds and activation energy of a water system can be increased through positive ions in the scale inhibitor, and accordingly the descaling rate is greatly increased; the proportion of aragonite to vaterite can be conveniently increased, the proportion of calcite is reduced, the descaling efficiency of the scale inhibitor can also be improved through the magnetic field, the use quantity of the composite non-phosphorus corrosion and scale inhibitor is greatly lowered at the same time, the production cost is lowered, and secondary pollution is reduced.

The invention discloses a rolling method based on a heated pure nickel plate. The rolling method comprises a plate blank preheating stage, a plate blank first-section heating stage, a plate blank second-section heating stage, a plate blank soaking stage, plate blank rough rolling, oxide skin treatment before finish rolling, plate finish rolling, curling and acid pickling annealing. According to the method, the plate blank is heated at a temperature of 150-220 DEG C/min, so that the situation that the nickel plate blank is rapidly heated from the room temperature, internal crystals are changed, and a yield is reduced is avoided; and meanwhile, in a heating process of the first-stage heating, the second-stage heating and the soaking stage, temperature control can be more accurate through control over the temperature of an upper burner and the temperature of a lower burner in a heating process; a high-pressure water descaling system is used for cleaning oxide skin on the surface of a plate blank before finish rolling, the oxide skin is prevented from being pressed into the surface of follow-up strip steel; and meanwhile, the nickel plate is rolled through seven-pass downward pressing and eight finish rolling mills in the rough rolling process, so that the surface of the rolled nickel plate is free of roller marks, high in flatness and good in surface glossiness.

The invention provides an electrochemical water scale removal device. The device comprises a water scale crystal nucleus generating unit used for electrochemical water treatment, wherein the water scale crystal nucleus generating unit comprises a tank body, diaphragms, an anode, cathodes and auxiliary electrodes; a water inlet and a drain outlet are formed in the bottom of the tank body; the diaphragms are arranged inside the tank body and divide the tank body into cathode chambers and an anode chamber; the anode is arranged inside the tank body; the cathodes and the auxiliary electrodes are arranged inside the cathode chambers; a catholyte water outlet and an anolyte water outlet are formed in the top end of the tank body. The device has the beneficial effects that with electrochemical operation, water scales can be deposited on the surfaces of the diaphragms and hinder ionic migration through the diaphragms, so that the resistance is increased, the current efficiency is reduced and the diaphragms need to be regenerated; the cathode chambers are emptied, the anolyte is led into the cathode chambers, then the auxiliary electrodes serving as anodes are connected and the anolyte generates chlorine and hydrochloric acid near the auxiliary electrodes, so that the water scales on the surfaces of the diaphragms are completely washed and the diaphragms are regenerated in situ.

The invention discloses an on-line ultrasound rotational flow descaling device for a condenser. The on-line ultrasound rotational flow descaling device is mainly formed by ultrasonic wave descaling equipment, a display operating system, a data acquisition and control device and power supply control equipment, wherein the display operating system is connected to the data acquisition and control device through a RS485bus, the data acquisition and control device is respectively connected to the ultrasonic wave descaling equipment, the rotational flow descaling device, the power supply control equipment and the condenser; the ultrasonic wave descaling equipment is fixed on the condenser, the on-line ultrasound rotational flow descaling device also comprises a rotational flow descaling device, the rotational flow descaling device is fixed on the condenser and is connected to the power supply control equipment through a circuit, hard scale of a pipe wall of the condenser can be cleared by the condenser through ultrasonic waves sent by the ultrasonic wave descaling equipment, meanwhile, soft scale of the pipe wall of the condenser can be cleared by the condenser through rotational flow generated by the rotational flow descaling device, therefore, the hard scale and the soft scale of the condenser can be cleared on line through two kinds of physical methods can be achieved.

The invention discloses a fish scale removing mechanism. The upper ends and the lower ends of a left vertical shaft and a right vertical shaft are supported on a rack by bearings respectively, the left vertical shaft and the right vertical shaft can rotate relatively, at least one fish scale removing assembly is arranged on each of the left vertical shaft and the right vertical shaft axially, and the quantity of the fish scale removing assembly on the left vertical shaft is equal to that on the right vertical shaft; each fish scale removing assembly comprises at least two fish scale removing combinations which are uniformly distributed in the circumferential direction of the vertical shaft correspondingly; each fish scale removing combination comprises at least two fish scale removing blades and a torsional spring, and the fish scale removing blades are uniformly arranged in an axial direction of the vertical shaft correspondingly. According to the fish scale removing mechanism, the left vertical shaft and the right vertical shaft rotate relatively to drive the fish scale removing blades on the two vertical shafts to rotate relatively, and the fish scale removing blade has elasticity due to the action of the torsional spring, so that fish scales can be effectively removed by fish scale removing sawteeth on the fish scale removing blade, and the fish meat cannot be battered down.

The invention relates to an external cold water descaling device for a direct-current converter valve cooling system and a method. The external cold water descaling device comprises a descaling tank, a direct-current power source, an electrode, an ultrasonic generator and a scale residue collection tank, a cathode and an anode of the electrode are corresponding connected with a cathode and an anode of the direct-current power source, the electrode is fixedly mounted in the descaling tank, the ultrasonic generator is mounted on the descaling tank, the scale residue collection tank is mounted at the bottom of the descaling tank, and the bottom of the descaling tank is open. The method includes: fixedly mounting the electrode with the descaling tank, and applying low voltage on the electrode; enabling calcium and magnesium ions of spraying water to be in chemical reaction at the cathode of the electrode to generate fouling; applying vibration of certain frequency on the electrode, and adjusting vibration frequency of the ultrasonic generator to vibration frequency identical when the fouling is adhered on the electrode to enable the fouling to shed into the scale residue collection tank. Through the descaling device and the method, scaling ions in spraying water can be removed, and the scaling problem of a cooling tower in a convertor station is solved.

The invention discloses an agricultural scale removing device for fish processing. The agricultural scale removing device comprises a bottom plate device, fixing devices arranged on the bottom plate device, a first electric-cylinder device, a supporting device arranged above the bottom plate device, a scraping device arranged on the supporting device, and a second electric-cylinder device arrangedon the scraping device. The agricultural scale removing device disclosed by the invention has the beneficial effects that manpower can be replaced to carry out scale removing treatment, so that the labor intensity of the manpower can be effectively reduced, a safer effect can be achieved, scales can be effectively removed ,and the removing effect is good; in addition, when the scales are removed,fish can be effectively fixed, so that the scale-removing efficiency is high; the operation is simple and the use is convenient.

The invention provides a descaling device at an inner wall of a steel tube with a 20-100mm of diameter. The descaling device comprises a three-way pipe and a high-pressure pipe, wherein the high-pressure pipe passes through two interfaces of the three-way pipe; the outlet end is connected with a flow equalizing head; high-pressure airflow or water flow and mortar are directly mixed inside an inner cavity of the steel tube to be descaled by matching of the high-pressure pipe and the three-way pipe; a high-speed abrasive jet is formed to strike the inner wall; and continuous, efficient and environment-friendly removal of a roll scale at the inner wall of the steel tube is achieved. Compared with the prior art, the descaling problem of the inner wall of the small-diameter steel tube of which the inner diameter is 20-100mm is successfully solved; the descaling device is high in descaling efficiency, free of pollution to the environment, and low in descaling cost; water or air and mortar are taken as materials; the water and the mortar can be recycled; a mixing nozzle of a common abrasive jet nozzle is concealed; and the descaling device is simple in structure, small in volume, easy to operate equipment, and wide in application range, and can be applied to various fields for cleaning the inner wall, such as descaling and derusting of the inner wall of the steel tube.