387 results about "Softened water" patented technology

The invention discloses a high-pressure soft water medium treatment and supply system, which belongs to the technical field of seawater desalination treatment, and comprises a multi-dimensional ion detection module for detecting the concentration distribution characteristics of target inhibition ions in original seawater to generate a corresponding coating material selection instruction; the electric field dynamic coupling module captures a termination signal according to the coating material selection instruction; the shock wave generation module starts a main pump to generate fluid shock waves to execute sediment breaking action according to the termination signal; the monitoring module is used for monitoring the finally output softened water ion concentration and reversely calculating the pollution index of the coating surface; and the heat cycle feedback device is used for starting a self-cleaning mode according to the pollution index and transmitting waste heat in the cleaning process to the pump set. The electric field dynamic coupling adsorption and fluid shock wave cooperative treatment technology is adopted, high-efficiency ion capture, dynamic sediment removal and waste heat recycling can be achieved, energy consumption is remarkably reduced, and continuous and stable operation of the system is guaranteed.

The present invention relates to the technical field of boiler drain treatment, and specifically to a headless full thermal deaerator for collecting boiler drain, comprising: a deaerator, a connecting shell and a base, the connecting shell is located outside the deaerator, the base is located at the bottom of the deaerator and the connecting shell, the end of the deaerator away from the deaerator is fixedly connected with a drain inlet pipe, the drain inlet pipe extends to the inside of the deaerator and is fixedly connected with a drain dispersion head, the inside of the drain inlet pipe and one end close to the drain dispersion head is provided with a guide component, the outside of the drain dispersion head is provided with a drain water separation tray, the end of the drain water separation tray away from the drain dispersion head is provided with a softened water pipeline, the end of the connecting shell close to the deaerator is fixedly connected with a sealing component, the connecting shell is connected to the deaerator through the connecting component, and a buffer component is provided inside the base. The beneficial effects of the present invention are: boiler drain is recycled, the deoxidizer and steam are mixed, the steam consumption for deoxidation is reduced, the thermal efficiency of the boiler is improved, and high efficiency and energy saving are achieved.

A molten salt heating direct-flow type wet saturated steam generation system, comprising an evaporation device, a molten salt conveying device, a preheating device, a softened water conveying device, and a dryness adjustment device. The evaporation device is provided with a first heat exchange pipeline and a second heat exchange pipeline; the molten salt conveying device comprises a molten salt conveying apparatus and a molten salt recovery apparatus; the preheating device is provided with a first preheating pipeline, and an outlet of the second heat exchange pipeline is connected to a steam output pipeline; and the dryness adjustment device comprises an adjustment member and a dryness measurement apparatus. According to the steam generation system provided by the present invention, the temperature of softened water and the temperature of molten salt can be adjusted to appropriate ranges, avoiding the crystallization of the molten salt; moreover, the dryness of wet saturated steam can be controlled by means of coarse adjustment and fine adjustment, and the direct-flow type evaporation device is suitable for softened water having poor quality so as to meet the steam injection requirements of oil fields.

The invention discloses an unattended tertiary oil recovery injection allocation system. A produced water treatment module receives oil well produced water, treats the oil well produced water and then provides softened water for a system; the dry powder dispersing, dissolving and curing module is used for mixing polymer dry powder with softened water treated by the produced water treatment module to form a polymer mother solution and curing the polymer mother solution; the liquid medicament storage and feeding module is used for storing, preparing and accurately adding liquid medicaments such as surfactants and bactericides; the mother liquor feeding and watering module conveys the polymer mother liquor to the injection module at a constant pressure, and meanwhile, softened water and a surfactant target solution in a set proportion are doped; the injection module mixes a polymer solution, water and an agent provided by the mother liquor feeding and watering module and then injects the mixture into the stratum at constant pressure; and the monitoring communication module controls the injection allocation system through the PLC. The system has the beneficial effects that the whole production process is automatically operated under the scheduling of the monitoring communication module, the operation state of corresponding equipment can be timely adjusted in case of special situations, the management efficiency is improved, and the maintenance cost is reduced.

A fused salt energy storage coupled CO2 air source heat pump water heater cascade energy storage steam supply system comprises a first-stage energy storage system and a second-stage energy storage system, the first-stage energy storage system comprises a softened water tank, and a water inlet of the softened water tank is connected with a water outlet of a softened water treatment device through a water conveying pipeline; a water outlet of the softened water tank is connected with a water inlet of a heated channel of a condenser of the carbon dioxide air source heat pump water heater through a softened water pipe connected with a softened water pump in series, and a water outlet of the heated channel of the condenser is connected with a water inlet of the heat storage water tank through a first-stage hot water pipe. A high-temperature and high-pressure gaseous carbon dioxide inlet of the heat dissipation channel of the condenser is connected with a circulating medium outlet of the carbon dioxide compressor through a pipeline. According to the cascade energy storage and steam supply system of the fused salt energy storage coupled CO2 air source heat pump water heater, the electricity price advantage of electricity in the off-peak period is fully utilized, the operation cost of a steam supply system of an enterprise can be reduced, and finished steam with the lower cost is provided for the enterprise.

The invention belongs to the technical field of heat pump units, and particularly relates to a high-efficiency middle-deep layer geothermal heat pump unit which comprises a unit body and a heat exchange pipe fixedly communicated to the unit body, and a water temperature sensor is further arranged at the position, corresponding to a water return opening, of the heat exchange pipe. The system further comprises a water softening mechanism, a bactericide supplementing mechanism, a water pressure real-time monitoring feedback mechanism, a water pressure descending speed monitoring feedback mechanism, an alarm grade dividing mechanism, an automatic water supplementing and pressure stabilizing mechanism and a working frequency self-regulating mechanism. Heat exchange water can be automatically softened, the content of ions such as calcium and magnesium is reduced, scaling is prevented, the heat exchange efficiency is maintained, the service life of equipment is prolonged, and cost is reduced; the regeneration frequency of the water softening mechanism and the bactericide adding frequency can be automatically regulated and controlled according to the water temperature, and the softening and sterilizing effects are guaranteed; and leakage of the heat exchange tube can be effectively monitored, graded warning is performed according to the size of leakage points, workers can respond and process in time conveniently, and the fault risk is reduced.

The invention discloses a hardness removal method and system for a sulfate-based mine water concentrated solution, and the method comprises the following steps: sequentially introducing the sulfate-based mine water concentrated solution into a coagulating basin and a flocculation basin for chemical treatment, and allowing the treated mine water concentrated solution to enter a sedimentation basin for standing to obtain softened effluent; wherein lime or sodium hydroxide and a coagulant are put into the coagulating basin, and the coagulating basin is used for carrying out coagulating treatment on the mine water concentrated solution; sodium carbonate, a coagulant aid and an inducer seed crystal are put into the flocculation basin and used for carrying out flocculation treatment and precipitation reaction on the mine water concentrated solution subjected to coagulation treatment, the standing time of the flocculation basin is 14-45 minutes, the precipitation reaction time is 6-30 minutes, and the excessive amount of sodium carbonate is 1.5-2.5 mmol / L. According to the invention, the hardness of calcium in softened water can be lower than 20mg / L.

A water treatment system is provided that includes an inlet in fluid communication with a source of untreated water, where the inlet is in fluid communication with a prefiltration unit. The prefiltration unit is adapted to remove one or more components from the untreated water. A membrane element is in fluid communication with the prefiltration unit and is adapted to remove the one or more components from the untreated water. A permeate stream and a retentate stream are generated by the membrane element. The water treatment system further includes a first treatment vessel that is positioned downstream of the inlet. The first treatment vessel is provided with a first treatment chemical, and the first treatment chemical is adapted to remove the one or more components from the untreated water.

The embodiment of the invention provides a steam generation system based on solid heat storage and fused salt heating and a control method of the steam generation system, and belongs to the technical field of oil exploitation equipment. The system comprises a preheating device connected with the water supply device and used for preheating softened water; the steam generating device is connected to the outlet end of the preheating device and is used for performing multi-stage evaporation on the preheated softened water so as to obtain wet saturated steam for steam injection; wherein the steam generation device and the fused salt heat storage device are correspondingly arranged, and the steam generation device executes heat exchange with high-temperature fused salt in the fused salt heat storage device so as to obtain wet saturated steam used for steam injection; and the control device is used for generating a linkage control scheme of the water supply device, the preheating device and the steam generation device based on the real-time steam injection requirement. According to the scheme, the problems of slow starting response and poor linkage in the prior art are solved, and the operation efficiency and energy efficiency of the steam generation system are remarkably improved.

The boiler softened water tank comprises a softened water tank body and a support, the bottom of the softened water tank body is fixedly connected with the support, the left side of the softened water tank body is fixedly connected with a liquid level sight glass, the surface of an emptying pipe is fixedly connected with an emptying valve, the bottom of the right side of the softened water tank body is communicated with a boiler pipe, and the bottom of the boiler pipe is communicated with a vacuum suppressor. The utility model relates to the technical field of boiler softened water tanks, a small liquid level control tank is installed outside the tank, a vacuum suppressor is installed at the top of the liquid level control tank and used for exhausting air when water enters, a floating ball valve is installed in the tank and connected with the softened water tank through a U-shaped bend, and the soft water tank is connected with the vacuum suppressor. The normal temperature is kept, the service life of the sealing piece is prolonged, the sealing piece can be maintained in time without shutdown when damaged and is not influenced by use and hot water in the tank, and the problem that the sealing piece of the floating ball valve is used at high temperature for a long time and is easy to age to cause water leakage is solved.

Systems and methods are described, which relate to internet-of-things (IoT) feedback systems, in which data received from a given IoT device may be analyzed by a controller and used as a basis for controlling another IoT device and / or sending an alert to a user. The controller may activate a dehumidifier upon detecting activation of a sump pump. The controller may monitor water level data and alert a user and / or request maintenance of the sump pump upon detecting the water level exceeds a threshold. The controller may monitor dishwasher data to detect suboptimal performance of a dishwasher, in response to which the controller may instruct valves of a manifold and water heater to close to isolate the dishwasher, and instruct a water softener to elevate salt levels of softened water during a self-cleaning cycle of the dishwasher.

The invention discloses a paper mill high-salt reclaimed water reuse treatment device, and belongs to the technical field of paper mill high-salt reclaimed water reuse treatment, the paper mill high-salt reclaimed water reuse treatment device comprises a reclaimed water collection pool, a manganese sand filter, a clean water pool, a self-cleaning filter, a UF system and a UF water production pool which are sequentially connected through pipelines, and an outlet of the UF water production pool is connected with a primary concentration RO device through a pipeline; the second-stage concentration RO device comprises a second-stage RO concentration membrane and a second-stage RO concentrated water tank; the second-stage RO concentrated water tank is sequentially connected with a hardness removal reaction tank, a hardness removal coagulation tank, a hardness removal flocculation tank, a softening clarification tank, a tubular ultrafiltration membrane, a tubular ultrafiltration water producing tank, a softener, a softened water tank, a third-stage security filter, a third-stage concentration DTRO device, a concentrated brine collecting tank, an MVR evaporation device and a condensate water tank through pipelines. The system is used for recycling the high-salt reclaimed water of the paper mill, and has the advantages of low operation cost, good use effect, small occupied area, large water recycling amount, good water outlet effect and the like.

A water system configured for installation in a vehicle comprises a pressure washer, a de-ionization system configured for de-ionizing water, and a water softener configured for softening water. The de-ionization system is in fluid communication with the pressure washer and configured to supply de-ionized water to the pressure washer. The water softener is in fluid communication with a water tank installed in the vehicle and configured to supply softened water to the water tank. A tee junction in fluid communication with the de-ionization system and the water softener routes an inlet feed of water to each of the de-ionization system and the water softener. The water system may include valves for selectively routing water, water filters for filtering water, and a waterproof tray configured to contain the components within a single compartment of the vehicle.

The invention belongs to the technical field of thermal power plant circulating water and sewage pretreatment, and relates to a circulating water lime softening system and method based on seed crystal circulation and intelligent control. Comprising a raw water tank, a lime softening tank, a flocculation reaction tank, a clarification tank and a softened water tank, through the synergistic effect of the seed crystal reflux circulation and the intelligent control technology, the softening efficiency is remarkably improved, the medicament consumption and the sludge output are reduced, and the resource utilization of the calcium carbonate byproduct is realized; according to the system, through organic connection of the raw water tank, the lime softening tank, the flocculation reaction tank, the clarification tank and the softening water tank, accurate adding of lime, sodium carbonate, seed crystal and a flocculating agent is combined, and whole-process water quality on-line monitoring and intelligent regulation and control are matched, so that efficient softening treatment of circulating water blow-down water is realized, stable and up-to-standard effluent quality is ensured, and the quality of discharged water is improved. Meanwhile, the operation cost and the treatment effect are optimized.

The utility model relates to a softened water preparation device, in particular to a softened water preparation device with high hardness removal rate. The utility model relates to a softened water preparation device with high hardness removal rate, which comprises a water inlet pipe, a reaction chamber I, a settling chamber I, a settling chamber II, a reaction chamber II, a settling chamber III, a settling chamber IV, an immersed UF reaction tank, an adjusting chamber, an ion exchange chamber and a water outlet pipe which are sequentially arranged, a sodium carbonate solution adding opening is formed between the settling chamber II and the reaction chamber II.

The invention relates to the technical field of autoclaved aerated concrete slabs, in particular to an autoclaved aerated concrete slab and a preparation method thereof, and the autoclaved aerated concrete slab comprises the following raw materials by mass: 110-120 parts of lime; 140 to 150 parts of cement; 50 to 55 parts of desulfurized gypsum; 9-11 parts of aluminum powder; 8-15 parts of functional particles; 0.15 to 0.25 part of a polycarboxylic acid type water reducing agent; 0.08 to 0.12 part of a citric acid retarder; 0.08 to 0.12 part of a rosin thermopolymer air entraining agent; the hardness of the softened water is lower than 50mg / L. Through innovative design of functional particles and regulation and control of a whole-flow process, collaborative improvement of light weight, high strength, excellent durability and process stability of the autoclaved aerated concrete plate is realized; the problems that strength and density of a traditional product are difficult to balance, durability is insufficient due to weak interface bonding, and process fluctuation is caused by mismatching of gas forming and condensation rhythms are solved.

The utility model relates to an energy-saving and environment-friendly screw type steam compressor testing device, which comprises an air suction filter, an exhaust separator, a heat recoverer, a lubricating oil tank, a softened water tank and a softened water treatment device, an air suction silencer and an air exhaust silencer are respectively arranged on the compressor air exhaust pipe and the compressor air inlet pipe; the compressor air inlet pipe is connected with the exhaust separator through a circulating water spraying pipeline; the heat recoverer is connected with the softened water tank through a condensate pipe and a balance pipe, the softened water treatment device is connected with the softened water tank, and the softened water tank supplements water to the screw type steam compressor to be tested through a softened water supplementing pipe. The steam generation speed of the air dynamic heat engine is increased through the circulating water spraying pipeline, the dynamic heat engine time is short, and meanwhile the power consumption of the driving motor is reduced; the noise reduction effect is good, the noise reduction cost is greatly reduced, and meanwhile, the field working environment of the test device is greatly improved; through the condensation phase change white smoke elimination technology of the heat recoverer, the heat in the steam can be completely recycled.

The utility model discloses a reverse osmosis ultrapure water purification device in the technical field of water treatment, which comprises a dosing device, one end of a second connecting pipe is fixedly connected with a quartz sand filtering tank, and the quartz sand filtering tank is connected with an activated carbon filtering tank through a water pipe. The activated carbon filtering tank is connected with the water softening equipment through a water pipe, and the water softening equipment is connected with the precision filter through a water pipe, so that water can be preliminarily filtered in advance, impurities, suspended solids, organic matters, chromaticity, peculiar smell and the like in the water are removed, and the surface of the medium is adsorbed, so that the purpose of purifying the water is achieved; the softening equipment can reduce the hardness of water in the tank, remove calcium and magnesium ions in the water and reduce the total salt content in the water, and sterilization and disinfection are performed again through the ozone sterilization equipment, so that the burden of reverse osmosis membrane filtration is reduced, and the quality of purified water is improved.

Method for softening produced oilfield brine for enhanced oil recovery, the method including dissolving gaseous carbon dioxide and a base in a produced oilfield brine that includes divalent ions to yield solid carbonates, filtering the solid carbonates to yield a softened water, and injecting the softened water into a subterranean formation.

The utility model discloses a plate heat exchanger facilitating descaling, and relates to the technical field of plate heat exchangers. Comprising a fixed end plate and a movable end plate, a lower guide beam and an upper guide beam are installed at the upper end and the lower end of the fixed end plate respectively, pressurizing screws are sleeved with the lower guide beam and the upper guide beam, the movable end plate is connected with the fixed end plate through the pressurizing screws, and plate sheets and gaskets are sequentially stacked between the fixed end plate and the movable end plate. A through hole is formed in the plate sheet, and a magnesium rod is installed on the movable end plate. According to the plate heat exchanger beneficial to descaling, the water filter is arranged at the front end of the heat exchanger and can remove various substances such as silt, rust and heavy metal in water, so that the heat exchanger has a certain filtering function to protect normal use of the heat exchanger, meanwhile, the magnesium rod is arranged in the heat exchanger and is mainly used for softening water, and the service life of the heat exchanger is prolonged. The corrosion of scale and acid-base substances in water can be effectively avoided, and the service life of the heat exchanger is prolonged.

The utility model relates to the technical field of soft water preparation, particularly provides a water mixing device and water softening equipment with the water mixing device, and aims to solve the problems that in the prior art, a water softening machine is too complicated in structure, high in cost and the like due to a water mixing mode that a raw water branch is additionally arranged. In order to achieve the purpose, a first connector of a water mixing device is communicated with an external raw water source and an inlet of a water softening device, a second connector is communicated with an outlet of the water softening device, the first end of a water mixing channel in the water mixing device is communicated with the first connector, the second end of the water mixing channel is communicated with the second connector, and a water mixing valve is arranged on the water mixing channel. The water mixing valve is arranged to be capable of opening or blocking the water mixing channel. According to the water mixing device, the water mixing channel is formed in the water mixing device, the water mixing valve is arranged on the water mixing channel, no pipeline needs to be additionally arranged, the hardness of softened water flowing out of the water mixing device can be adjusted as required only by adjusting the opening degree of the water mixing valve, the equipment structure is simplified, and the cost is reduced.

The utility model provides a softened water spraying device. The softened water spraying device comprises a water supply tank, a fixed frame, a movable frame, a spraying pipe and a nozzle, according to the softened water spraying device, the water supply tank is arranged, the fixed frame is arranged on the water supply tank, the movable frame which can be adjusted in the vertical direction is arranged on the fixed frame, the spraying pipe is arranged on the movable frame, and the nozzle on the spraying pipe is communicated with the water supply tank. During use, the height of the movable frame is adjusted to enable the spraying pipe on the movable frame to be higher than the conveying belt, the water supply tank is moved to enable the spraying pipe to be located above the water conveying belt, the height of the spraying pipe can be adjusted at will according to different heights of the conveying belt, and meanwhile the position of the water supply tank can be moved according to the position of the on-site conveying belt. And the spraying device can be conveniently added or removed according to field requirements. The device is convenient to operate and can be flexibly used according to a field process, so that cost waste caused by process adjustment is reduced.

The utility model discloses a high-salt wastewater treatment system, wherein a high-salt wastewater pool, a sedimentation tank, a sand filter, a purification pool, a tubular microporous filter, a filter water tank, a heater, a bag filter, an ultrafiltration device, an ultrafiltration pool, a weak acid bed, a softening pool, a primary concentration reverse osmosis device, a primary concentrate tank, a secondary concentration reverse osmosis device, a secondary concentrate tank, and an MVR evaporator are sequentially connected in series through pipelines along the water flow direction of the concentrated water concentrate, the MVR evaporator is connected to a hazardous waste treatment device, the sedimentation tank is connected to a sludge buffer tank through a pipeline, the sludge buffer tank is connected to a filter press through a pipeline 1, and the high-salt sludge treated by the filter press is transported out; the primary concentration reverse osmosis device, the secondary concentration reverse osmosis device, and the MVR evaporator are respectively connected to the whole plant reuse water pool through pipelines. The utility model realizes a significant reduction in high-salt wastewater, effectively saves water resources, and has significant environmental protection and economic benefits.

The invention discloses an anti-freezing solution suitable for a hydraulic support and a preparation method of the anti-freezing solution, and belongs to the field of mining mechanical engineering and industrial fluid. The water-based cutting fluid comprises the following raw materials in parts by weight: 25-45 parts of an anti-freezing agent, 1-3 parts of an anti-rust agent, 5-10 parts of a nano-composite lubricant, 2-5 parts of an anticorrosive agent, 1-3 parts of a stable buffer agent, 0.1-0.5 part of an acid-base regulator, 0.5-2 parts of a surfactant, 0.02-0.1 part of an anti-foaming agent and 30-65 parts of softened water. Wherein the nano composite lubricant is composed of molybdenum disulfide nanosheets, boron nitride nanosheets and carboxymethyl chitosan, and the mixing mass ratio of molybdenum disulfide to boron nitride to carboxymethyl chitosan is 1: 1: (3-10). The preparation method comprises the step of uniformly mixing the raw materials at 40-50 DEG C to obtain the anti-freezing solution finished product suitable for the hydraulic support. The anti-freezing solution integrating excellent anti-freezing, lubricating, rust-proof and environment-friendly properties is obtained, and the preparation method is simple and suitable for large-scale production.

The utility model relates to a calcined coke waste heat utilization system, and belongs to the technical field of waste heat recovery. The device comprises a first-stage cooler, a second-stage cooler, a waste heat lifting device and a deaerator, and calcined coke is cooled and output sequentially through the first-stage cooler and the second-stage cooler; the first-stage cooling pipe is communicated with the heating medium pipe to form a circulating pipeline, and external softened water is communicated with a second deoxidizing inlet of the deaerator through a first refrigerant pipe; external softened water is connected with an inlet of the second-stage cooling pipe through a second refrigerant pipe, an outlet of the second-stage cooling pipe communicates with a first inlet of the deaerator, and an outlet of the deaerator conveys high-temperature water to the outside. The system is simple in structure, waste heat of calcined coke can be recycled more sufficiently, energy waste is avoided, steam can be heated by the recycled waste heat of the calcined coke, steam cost is reduced, energy is saved, the system is stable and reliable, calcined coke materials with the temperature below 100 DEG C can be output, and energy is saved. And the discharge temperature of the calcined coke is low, so that the requirement on the cooling temperature of the calcined coke material can be met.

The application discloses a flue gas heat energy and condensate water utilization system, which comprises a boiler, a flue gas cooling device, and a deoxygenated water tank. The flue gas generated by the boiler combustion enters the flue gas cooling device through a first flue for cooling. The flue gas exchanges heat with the water in the condensate water tank, the water in the condensate water tank is heated, the flue gas is cooled, and the cooled flue gas is discharged through a second flue. The condensate water formed in the flue gas cooling process falls into the condensate water tank. The water in the condensate water tank is deoxygenated by the deoxygenated water tank and then flows back to the boiler. The flue gas heat energy generated by the boiler combustion is utilized, the slightly acidic condensate water generated by the flue gas is mixed with the slightly alkaline softened water and the boiler water, the acidic condensate water and the alkaline softened water and the boiler water are subjected to acid-base neutralization reaction, the flue gas is used to heat the condensate water, and the like, so that the flue gas condensate water does not contain acidic gas, and thus the flue gas condensate water is slightly alkaline water suitable for the utilization of the boiler.

The utility model discloses a full-automatic water softening device which comprises a salt tank and a resin tank arranged on one side of the salt tank, hoops used for fixing the positions of the salt tank and the resin tank are arranged in the middle of the salt tank and the middle of the resin tank, and a supporting assembly is arranged at the bottom of the salt tank. A positioning assembly used for fixing the position of the hoop is arranged at the end of the hoop. The positioning assembly comprises fixing bases symmetrically arranged at the two ends of the hoop, and the two ends of the hoop are symmetrical. By means of the design of the fixing base, the connecting base, the connecting groove, the limiting piece and the pressing piece, when the end of the hoop needs to be fixed, the connecting base arranged at the end of the hoop directly penetrates into the connecting groove, the position of the connecting base is fixed through the limiting piece, and when the hoop needs to be disassembled, the pressing piece can be pressed by the pressing piece. The connecting seat is directly released through the pressing piece, and disassembly is directly completed, so that installation and disassembly of the hoop are simplified, and the working time of workers is saved.

The utility model relates to an oral irrigator hose bending machine which comprises a rack, a fixing assembly for fixing an oral irrigator hose is arranged at one end of the rack, a heating assembly is movably connected to the other end of the rack, the oral irrigator hose is softened by means of heat generated by the heating assembly, and a bending assembly for bending the oral irrigator hose is movably connected to the middle of the rack. A PLC is arranged on the rack, and the fixing assembly, the heating assembly and the bending assembly are all connected with the PLC. The water pick hose bending device has the advantages that the water pick hose is fixed to one end of the rack through the fixing assembly, then the water pick hose is softened through heat generated by the heating assembly, and the heated and softened water pick hose is rapidly bent through the bending assembly movably connected with the middle of the rack. Due to the fact that the fixing assembly can play a role in fixing the oral irrigator hose, the oral irrigator hose is in a fixed state in the heating process and the bending process, and the bending quality is improved.

An air source heat pump and steam boiler combined heat supply system comprises a water treatment system, an air source heat pump, a deaerator, a steam boiler and an induced draft fan, the water treatment system used for desalting and softening water is connected with the water inlet end of the air source heat pump, and the water outlet end of the air source heat pump is connected with the water inlet end of the steam boiler through the deaerator. The air outlet end of the steam boiler is connected with the air inlet end of the air source heat pump. The heat supply system is simple in structure, convenient to operate, flexible and practical, the air source heat pump is embedded in an existing mature steam boiler heat supply system, the waste heat of the smoke at the tail of the steam boiler is further recycled, the overall heat efficiency of the heat supply system is improved, and the heat supply cost is reduced.

1. Name of the designed product: central water softener (2). 2. Use of the designed product: for softening water quality. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: perspective view.