102results about How to "Avoid affecting water quality" patented technology

The invention discloses a full-automatic current-limiting non-negative pressure pipe network lamination water-supply device, wherein a pipe network is directly connected in series with a water pump to pressurize and supply water, thereby cancelling a middle process of secondary pollution which is caused by exposition and storing of water bodies of water ponds and water tanks and the like. Under the totally-enclosed environment, the condition of producing negative pressure is eliminated, and the device runs under constrained conditions and does not produce negative pressure, which avoids harmful impact to the pipe network. Even if negative is going to be produced, the marginal state to produce negative pressure can be eliminated, and the dual-function of prevention and elimination can guarantee that water flow state in the pipe network changes steadily and smoothly, and the pipe network runs steadily, and qualified running water is directly supplied to each water-consumed spot. The invention has the outstanding advantages of high energy-saving, high reliability, strong application performance, full-automatic control, and environmental protection.

The invention discloses a rolled reverse osmosis membrane element. The element consists of a central water producing pipe and a reverse osmosis membrane which is wound on the central water producing pipe, wherein the reverse osmosis membrane is folded to form a water inlet flow channel and a water producing flow channel; part of sections, far away from the central water producing pipe, of the two sides of the water inlet flow channel adjacent to a hem are closed and sealed, so that small sections of raw water inlets are formed at the places of the two sides close to the central water producing pipe respectively and that a concentrate water outlet is formed on the side of the water inlet flow channel opposite to the hem, wherein water inlet pipes are arranged in the raw water inlets; and the water inlet pipes are provided with a plurality of small holes facing the concentrate water outlet. The rolled reverse osmosis membrane element has the advantages of eliminating water inlet dead angles of the raw water inlets and avoiding scale formation at the raw water inlets, so that water quality is improved.

The invention relates to an up-flow electro-catalytic reactor. The up-flow electro-catalytic reactor comprises a reaction region and a skimming region; the following components are arranged in the reaction region: a plurality of anode shape-stable titanium plates and cathode stainless steel plates which are all arranged in parallel and used for electro-catalysis operations, a flow guide grille which is arranged perpendicular to the anode shape-stable titanium plates and the cathode stainless steel plates, a first dustpan-shaped catchment hopper which is arranged on the lower part of the flow guide grille and used for collecting residues or particles generated in the electro-catalysis process, and a water inlet pipe which is connected by use of a hole formed in the side surface of the dustpan-shaped catchment hopper; a skimming brush is arranged in the skimming region and driven by a motor to skim floating foam or dross; and the skimming region also serves as a first static settling tank. As the flow guide grille is arranged in the reaction region, backmixing between anode and cathode reaction regions is avoided, energy loss due to that an anodic oxidation product is reduced again at the cathode is prevented, and meanwhile, the cost is saved to the maximum extent. Besides, due to the arranged skimming region, floating objects such as floating foam and dross are effectively removed and prevented from going into water again to affect the effluent quality.

The invention relates to a kelp germplasm separation method. According to the kelp germplasm separation method, when kelp zoospores are diffused, kelp is inside and outside wrapped by medicine, gauze and bolting-silk, so that kelp mucus and impurities can be effectively prevented from influencing water quality; a pipettor separation gametophyte can be used for effectively improving the separation efficiency and avoiding pollution; and a culture medium is improved, so that the rapid growth requirement of the kelp zoospores is satisfied, and the pollution can be effectively avoided. Therefore, the kelp germplasm separation method is safe and high-efficiency.

The invention discloses an unpowered mixing and low temperature resistant biochemical treatment device for rural (community) sewage mud liquid, and the device includes a floating precipitation separation pool, a baffle mixed fermentation pool and an efficient biochemical treatment pool. The middle of the floating precipitation separation pool is communicated with the baffle mixed fermentation tank through a stream guidance tube, the upper part of the baffle mixed fermentation tank enters into the bottom of the efficient biochemical treatment pool through a three-way stream guidance tube, and the upper part of the efficient biochemical treatment pool through a stream guidance tube enters into a depth treatment facility or external environment. The baffle mixed fermentation tank is provided inside with a baffle plate, and stereo elastic packing suitable for biological biofilm culturing is suspended in the efficient biochemical treatment pool. The invention optimizes the process of a traditional three-case septic tank, extends the residence time of waste water, improves the degree of mixing of sewage and activated sludge, utilizes the geothermal to improve the treatment effect of sewage in winter, and has the characteristics of low cost, low operation cost, high efficiency, and easy popularization.

The invention discloses a flower pot frame in the field of flower planting. The flower pot frame comprises a support frame, a water tank and a flowerpot, wherein a storage plate is arranged on the support frame; the water tank comprises a tank body and a cover plate, a water inlet pipe, a draining pipe and a water level gauge are arranged on the tank body, and the water level gauge is communicated with the bottom end of the tank body; the cover plate is fixed on the tank body, a groove is formed in the middle of the cover plate, a mounting hole is formed in the middle of the groove, and draining holes are formed in the periphery of the mounting hole; the flowerpot is fixed in the groove, and a mounting table matched with the mounting hole is formed in the bottom of the flowerpot; multiple water supply pillars are arranged on the mounting table, and a water absorption strip extending into the water tank is arranged at the bottom end of the mounting table and connected with each water supply pillar. According to the scheme, an appropriate amount of water can be automatically supplied to the flowerpot for flower planting, and normal growth of a flower is guaranteed; besides, the flower pot frame has practicability and ornamental value, can be used for planting the flower and culturing ornamental fishes and the like, enriches life of urban household crowds, is simple in structure and easy to manufacture and has certain market potential and use value.

The invention discloses catering water-oil separation equipment which comprises an oil-water separation tank, wherein a feeding hopper is fixedly connected with the upper end of the oil-water separation tank; a motor is fixedly connected with the outer side wall of the oil-water separation tank; a motor output end penetrates through the oil-water separation tank and extends into the oil-water separation tank; the extension end of the motor output shaft is fixedly sleeved with filtering plates; the filtering plates are distributed at the motor output end in an annular array manner; at least sixfiltering plates are connected through partition plates on two sides; a dreg outlet hole is formed in a side of the oil-water separation tank; a rotating shaft is fixedly inserted into the wall of the dreg outlet hole; a torsion spring is fixedly connected with the rotating shaft; the rotating shaft is moveably sleeved with a guide plate; one end, far away from the rotating shaft, of the torsionspring, is fixed on the guide plate. Due to the adoption of the filtering plates, an oil-water separation plate and oil filtering plates, three components, namely dregs, water and oil, are effectivelyseparated, the device is simple in structure, convenient to operate and good in oil-water separation effect, and the situations that the water quality is affected and pipelines are blocked as oily water is directly discharged are avoided.

The invention relates to a heating device which comprises a furnace surface plate, a heating component, a shell and a blower, wherein the furnace surface plate is mounted on the shell; an accommodating cavity is formed between the furnace surface plate and the shell; the heating component and the blower are mounted in the accommodating cavity; the heating component is positioned below the furnace surface plate; a ventilation spacing is formed between the heating component and the side wall of the shell; the blower is arranged apart below the heating component; the air-out direction of the blower faces the heating component; a ventilation spacing is formed between the blower and the side wall of the shell; the top wall of the shell is provided with a plurality of air outlets distributed at intervals in the circumferential direction; the lower end of the shell is provided with an air inlet; and the air inlet, the ventilation spacings and the air outlets constitute a basin-shaped heat-radiating channel. According to the invention, in the working process of the blower, the heat-radiating component is always wrapped by the basin-shaped heat-radiating screen, so that the heat-radiating effect is favorable, and the efficiency is high.

The invention discloses a rolled reverse osmosis membrane element. The element consists of a central water producing pipe and a reverse osmosis membrane which is wound on the central water producing pipe, wherein the reverse osmosis membrane is folded to form a water inlet flow channel and a water producing flow channel; part of sections, far away from the central water producing pipe, of the two sides of the water inlet flow channel adjacent to a hem are closed and sealed, so that small sections of raw water inlets are formed at the places of the two sides close to the central water producing pipe respectively and that a concentrate water outlet is formed on the side of the water inlet flow channel opposite to the hem, wherein water inlet pipes are arranged in the raw water inlets; and the water inlet pipes are provided with a plurality of small holes facing the concentrate water outlet. The rolled reverse osmosis membrane element has the advantages of eliminating water inlet dead angles of the raw water inlets and avoiding scale formation at the raw water inlets, so that water quality is improved.

The invention discloses a water storage structure for bridge plugging, includes a bridge body and a groove, the bridge body is provided with a groove, fixing plates are fixedly connected to the innerwalls of the left and right sides of the groove, the top of the groove is symmetrically and fixedly connected with two fixing rods, the surface of the fixing rod is sleeved with a first cushioning spring, the upper end of the groove is provided with a top cover, A plurality of water permeable holes are arranged on the top cover, the left and right ends of the bottom surface of the water permeablehole are provided with fixing holes which are matched with the fixing rods, A leak-stopping wat storage structure for that bridge As that first filt screen and the second filter screen are provide tofacilitate filtering of the rainwater, The water outlet hole is prevented from being blocked by sediment dust and water quality is prevented from being affected. The first filter screen and the secondfilter screen are convenient to be disassembled and cleaned through the through groove, the limiting rod, the first concave block, the second concave block and the positioning bolt, so that the wateroutlet hole is prevented from being blocked and the water quality is affected.

The invention discloses a wastewater treatment process based on combination of super magnetic separation and an SBR (Styrene Butadiene Rubber) technique. In the wastewater treatment process, a super magnetic separation system, an SBR system, an ultraviolet sterilization system and a self-control system are included, wherein the self-control system is connected with the super magnetic separation system, the SBR system and the ultraviolet sterilization system; the super magnetic separation system comprises a super magnetic separator, a magnetic seed recycling system, a magnetic seed pump and a water outlet pool; water feed, aeration, sedimentation, water discharge and sludge discharge are implemented in sequence in an SBR pool, organic matter degradation and nitrogen and phosphorus removal are effectively implemented in the SBR pool; the ultraviolet sterilization system comprises tubular type ultraviolet sterilization equipment and a valve; and the self-control system comprises a sensor. The wastewater treatment process has the advantages of being small in floor space, moveable, free of complex civil engineering, low in operation cost, high in automation degree, easy to operate and manage and the like; due to PLC (Programmable Logic Controller) real-time control, phenomena that the water quality is affected because of insufficient aeration or sludge swelling is caused and electric energy is wasted because of too long aeration can be effectively avoided, the labor cost is low, the service life of the equipment is long, and secondary investment is small.

Technical problems to be solved are that the collection effect is poor, the surface water is difficult to sample, the accuracy of the river water detection result is low and the working efficiency islow in the existing surface water sample collecting device for river water detection. In order to solve the technical problems, the invention provides a surface water sample collecting device for river water detection. The surface water sample collecting device for river water detection comprises a push cart, electric rollers, a supporting rod, a slide block, a base, a first button, a first bracket, a first motor, a left bearing seat, a right bearing seat, a second bracket and so on; the electric rollers are horizontally arranged at the top of the push cart at equal intervals; the supporting rod is vertically arranged on the front side of the push cart; and the upper end of the supporting rod is connected with the slide block. According to the surface water sample collecting device for river water detection, the surface water sample of the river water is collected by using a conical barrel; and a conical weight block is arranged at the bottom of the conical barrel.

The invention provides a bullfrog breeding feed platform. The bullfrog breeding feed platform is composed of a feed platform body and an aquatic plant box. The feed platform body is latticed or stripy and detachably connected with the aquatic plant box. The aquatic plant box is composed of a bottom and side faces. A filter screen is laid on the surface of the feed platform body and detachably connected with the feed platform body. The bullfrog breeding feed platform is simple in structure, convenient to use and clean, and easy to disinfect, waste of feed and water and soil pollution can be prevented, redundant nutrients can be used for nourishing aquatic plants, and thus ecological coexistence of the aquatic plants and bullfrogs is achieved.

The invention discloses a full-automatic current-limiting non-negative pressure pipe network lamination water-supply device, wherein a pipe network is directly connected in series with a water pump to pressurize and supply water, thereby cancelling a middle process of secondary pollution which is caused by exposition and storing of water bodies of water ponds and water tanks and the like. Under the totally-enclosed environment, the condition of producing negative pressure is eliminated, and the device runs under constrained conditions and does not produce negative pressure, which avoids harmful impact to the pipe network. Even if negative is going to be produced, the marginal state to produce negative pressure can be eliminated, and the dual-function of prevention and elimination can guarantee that water flow state in the pipe network changes steadily and smoothly, and the pipe network runs steadily, and qualified running water is directly supplied to each water-consumed spot. The invention has the outstanding advantages of high energy-saving, high reliability, strong application performance, full-automatic control, and environmental protection.

The invention discloses a bottled drink water cooling device with a conical draining structure. The bottled drink water cooling device comprises a water cooling box, a plurality of nozzles, a water storage tank and a return pipe. A conveying belt transversely runs through the whole water cooling box; the nozzles are arranged above the conveying belt; the water storage tank is connected to the nozzles through a delivery pipe provided with a delivery pump, and the water storage tank is provided with a cooling water connecting pipe; the return pipe is provided with a return pump and a radiator and connected to the water cooling box and the water storage tank; the water cooling box has a conical draining bottom, the lower end of the conical draining bottom is connected to the input end of thereturn pipe, the top of the conical draining bottom is provided with a filter screen, the side wall of the water cooling box is provided with a filter screen pull-out opening, and the filter screen isdetachably installed on the filter screen pull-out opening. Cooling water can be rapidly gathered to the conical draining bottom to be drained; besides, impurities can be stopped by the filter screen, so that influence on the quality of return water is avoided.

The invention discloses intelligent household water temperature control equipment. The equipment comprises a shell, a heating water tank is arranged in the shell, a water inlet is formed in one side of the heating water tank, a water outlet is formed in the other side of the heating water tank, a drain valve is connected to the water outlet, a heating pipe is arranged on the lower portion of the heating water tank, the heating pipe is installed in the shell, a cooling water tank is arranged on the upper portion of the heating water tank, and a cooling fan is installed on the inner wall of thetop of the cooling water tank. By designing the cooling water tank, water is heated to be boiled and then subjected to extraction and air cooling, the boiled water obtained after boiling can be cooledrapidly, the water temperature is effectively controlled, and the equipment adapts to the household use requirement better; compared with a traditional filter purified water or barreled pure water, the equipment better conforms to psychological using habits of consumers, labor consuming operation of changing water is omitted, convenience is brought to use, the water tank is arranged inside and integrally designed, and the appearance is attractive.

The invention discloses a solar water heater tank with a cleaning function. The solar water heater tank comprises a tank body, a water inlet pipe and a water outlet pipe. The side wall of the tank body is connected with the water inlet pipe communicating with the interior of the tank body in a penetrating mode. The water inlet pipe is connected with a first water valve. Through advanced filteringof a filtering device, part of impurities of water are filtered away in advance, thus, water scale can be prevented from being produced in advance, and a prevention effect is achieved; and in addition, in the filtering device, a cambered-surface block moves up and down, accordingly, first bristles are driven to move back and forth, and thus, a filter net is prevented from being blocked. The waterscale on the inner side wall of the tank body is cleaned up through a brush and scraping pieces, during rotation, waterflow is driven while cleaning is performed, thus, cleared dirt can be taken away,the cleaning effect is made better, the brush can also be stored away after cleaning is performed instead of being soaked in hot water for a long time, and meanwhile, the situation that the bristlesof the brush are soaked in the water, and the water quality is affected can be avoided.

The invention discloses a voltage stabilization energy storage tank, and relates to voltage superposition water supply equipment. The voltage stabilization energy storage tank comprises a tank body and a nitrogen bottle, wherein a water inlet / outlet is formed at the bottom of the tank body; and an air filling port is formed on the top of the tank body, and is communicated with the nitrogen bottle through a pressure regulator. When the tank is used, the water inlet / outlet is communicated with a water outlet of a pressurization water pump and a water supply pipeline; when the pressurization water pump operates, a part of water is pressed into the voltage stabilization energy storage tank, and gas in the voltage stabilization energy storage tank is compressed to storage water energy; when the pressure of the water supply pipeline is reduced, the stored water is pressed out through the gas and is used for supplementing a small amount of water for the water supply pipeline, and the nitrogen bottle is used for stabilizing the pressure of the gas inside the tank body; and due to an energy storage structure, high water energy is stored, the storage tank has a good using effect, bacteria cannot be bred, the water quality cannot be influenced, and the tank is used for supplying the water in a pressure superposition mode.

The invention discloses a device for improving the heat exchange effect of a water-cooled cooler. The cooling water inlet of the water-cooled cooler is connected with a reverse discharge pipe, and a reverse discharge valve is installed on the reverse discharge pipe. The cooling water outlet of the water-cooled cooler There is also a gas filling pipeline connected to the gas filling pipeline, and a gas filling valve is installed on the gas filling pipeline. The device also includes an air source storage tank, a pressure gauge is installed on the air source storage tank, the air source storage tank is connected with a supplementary air source through an air supply pipeline, and a self-adjusting valve is installed on the air supply pipeline. When in use, close the water inlet valve at the cooling water inlet of the water cooler, open the reverse discharge valve, then open the gas filling valve, and feed the gas through the gas filling pipe. The gas and water are mixed in the water cooler and flow in reverse direction to remove the adhesion to the inner wall of the water cooler. , The slimy dirt on the outer wall of the heat exchange tube is discharged out of the system through the reverse discharge pipe to ensure the heat exchange effect of the water cooler. By setting the self-adjusting opening, the pressure of the aerated buffer tank is guaranteed to be higher than the cooling water pressure.

The invention discloses an industrialized ecological breeding method of soft-shelled turtles. The industrialized ecological breeding method comprises the following steps of 1, breeding area selection;2, juvenile soft-shelled turtle breeding: a, disinfection before stocking; b, juvenile soft-shelled turtle stocking; c, juvenile soft-shelled turtle feeding; 3, young soft-shelled turtle breeding: a,young soft-shelled turtle pond disinfection; b, young soft-shelled turtle stocking; c, young soft-shelled turtle feeding; 4, adult soft-shelled turtle breeding: a, adult soft-shelled turtle pond disinfection; b, adult soft-shelled turtle stocking; c, adult soft-shelled turtle feeding; 5, disease processing; a, processing of the foot sore and neck sore of the soft-shelled turtles; b, processing offuruncle of the soft-shelled turtles. By means of the industrialized ecological breeding method of the soft-shelled turtles, breeding equipment and the breeding mode in the process of juvenile soft-shelled turtle breeding, young soft-shelled turtle breeding and adult soft-shelled turtle breeding are improved, and water is prevented from being polluted by feeding residues; secondly, according to the method of preventing and comprehensively treating the foot sore and neck sore and furuncle of the soft-shelled turtles in the soft-shelled turtle breeding period, the incidence of the diseases is greatly controlled and lowered, and then the yield of the soft-shelled turtles is increased.

The invention relates to the technical field of aquaculture, and discloses an aquaculture net cage. The aquaculture net cage comprises a first net cage body and a second net cage body; inserting rods are fixedly connected to the corners of the lower ends of the first net cage body and the second net cage body, an oxygenation device is installed at the front end of the first net cage body, and a purification device is arranged inside the first net cage body; a lifting device is arranged at one end of the purification device inside the second net cage body, a connecting mechanism is installed at the joint of the first net cage body and the second net cage body, a separation mechanism is detachably connected to one side of the second net cage body in one end of the first net cage body, and a second opening is formed in one side of the separation mechanism at one end of the second net cage body; and the first net cage body and the second net cage body are both made of corrosion-resistant metal materials. According to the aquaculture net cage, fishes of different sizes can be cultured separately, food deposition is prevented from affecting water quality, the content of oxygen in water can be increased, manual fishing is not needed, and labor is saved.

The invention belongs to the field of net cage culture, and particularly relates to a feed recovery culture net cage and a recovery method thereof. The feed recovery culture net cage comprises a floating plate frame fixedly arranged on a net cage; the bottom of the net cage is provided with a cage bottom; the cage bottom comprises a fixed plate and movable battens arranged at intervals; a plurality of elastic supporting mechanisms are arranged on the lower sides of the movable battens; a plurality of guide pipes are arranged on the right side of the box bottom; the other ends of the multiple guide pipes are fixedly connected with recovery pipes; a control valve is arranged at the lower end of each recovery pipe; a sundries storage chamber is arranged at the upper end of each recovery pipeand arranged on the side face of the net cage; and a feeding machine used for feeding and a pump machine used for feed recovery are arranged on the upper side of the floating plate frame. Residual feed in the net cage can be recovered, so that the water quality is prevented from being influenced.

The invention relates to a water / heat meter with a dispenser casing (6) and a metering device (10), wherein the metering device includes a transmitter. The dispenser casing (6) is formed as a composite part made from a plastic part (7) and a metal tube (1) a part of which is poured in the plastic part. The invention is also included for a method for producing a transmitter housing for a water / heat meter. According to the invention, an opening (4) is processed in a metal pipe, especially in a steel pipe wall and then the metal pipe is put into an injected mold and is partly enclosed by plastic in the injected mold.

The invention discloses a quantitative water injection device for modern livestock breeding, which comprises a circulating water inlet pipeline, a water containing device, an automatic water injection device and a heat preservation water feeding device. A loop water pipe is erected on an original breeding farm, an original constructed trough structure is not damaged, water is pumped out of a well and then led into a water tank, and redundant water is returned to the well, so that waste is avoided. The water tank is easy to mount and demount, food residues in the water tank are convenient to clean, the water level in the water tank can be controlled by changing the gear transmission ratio in a control box, the water feeding amount of livestock can be accurately controlled, scientific breeding is achieved, the automatic water injection device reduces labor consumption, and meanwhile time is saved. The hollow structure in a double-layer shell of the water tank can effectively preserve heat of water in the tank, reduce energy waste and reduce electricity consumption, the interior of the water tank can be automatically cleaned, timing operation is conducted through a control module, and therefore the functions of water feeding, cleaning, medicine supplying and temperature adjusting at regular time are achieved.

The invention discloses a pond ecological breeding system for river crabs in southern areas. The pond ecological breeding system comprises a pond body, sandbag modules, a cage body, a drainage ditch and a plurality of planting frames; the sandbag modules are laid at the bottom of the pond body and are arranged in rows and columns, interval lanes are formed between the adjacent rows and columns, and fine sand is laid in the interval lanes; the cage body is laid along the interval lanes, a mud pumping pipeline is laid along the interior of the cage body, a mud suction opening is formed in the mud pumping pipeline, and an anti-escape net is arranged outside the cage body in a covering manner; the drainage ditch is arranged along one side of the pond body, and a water level adjusting pipe is arranged in the drainage ditch; and the planting frames are arranged in the pond body, a plurality of rows of planting grooves are formed above the planting frames, and planting boxes used for planting aquatic plants are arranged in the planting grooves in a matched manner. According to the pond ecological breeding system, the sandbag modules can be directly laid at the bottom of a pond to cover sludge, construction is easy, convenient and rapid, most of the sludge can be covered, it is avoided that bottom sludge suspends to affect water quality, and the problems that in the traditional technology, the work amount of hardening the bottom of the pond with cement is large, the construction period is long, and the cost is high are solved.

The invention provides a leech culture device. The leech culture device comprises a culture pond, a water inlet, a water drainage port, a feeding device and a hook; the feeding device comprises a bait box and a recycling box; the recycling box is fixedly connected under the bait box; the bait box and the recycling box are hollow cylindrical containers with openings formed in the upper portions and the same radius, and multiple through holes are formed in the side wall and the bottom of the bait box. The invention further provides an ecological culture method. The method comprises the steps that bait is put into the bait box, the feeding device is vertically immersed into the culture pond, and it is guaranteed that the top end of the uppermost layer bait box is located 1-2 cm over the water surface. The leech culture device and the ecological culture method have the advantages that leeches can conveniently take feed, remaining bait can be cleaned conveniently and thoroughly, operation is easy while the good water quality in the culture pond is guaranteed, the labor cost is reduced, the culture efficiency is improved, and the culture benefit is increased.

The invention discloses a desalinating scale inhibitor for brackish water of saline-alkali soil. The desalinating scale inhibitor comprises the following components in parts by weight: bamboo charcoalpowder, silver oxide, a phosphonic and sulfonic acid-containing terpolymer, polyacrylic acid, organic phosphonic acid, maleic anhydride, a disinfectant and a defoaming agent. The invention also discloses a using method of the scale inhibitor. Centralized desalinating treatment can be carried out on brackish water in a saline-alkali soil area; the amount of scale during a treatment process is greatly reduced; water after the desalinating treatment can be directly used to irrigate crops, and can be used for salt leaching by filling water, so that the economic value of the saline-alkali soil isincreased; and through the treatment on the brackish water of the saline-alkali soil, abundant underground water of the saline-alkali soil can be effectively utilized, so that the waste of water resources can be avoided, and the influence on water quality in the area near the saline-alkali soil can be prevented during underground water circulation. The desalinating scale inhibitor has simple compatibility, high desalinating effect of brackish water and small amount of scale, facilitates the protection of operation stability of a water treatment device, furthest ensures the service life of thewater treatment device, and is suitable for extensive promotion and utilization in saline-alkali soil areas.

The invention relates to a while random copolymerization polypropylene (PP-R) light resistant pipe which comprises a white (PP-R) water pipe. The while random copolymerization polypropylene (PP-R) light resistant pipe is characterized in that the white PP-R water pipe has three layers, the outer layer and the inner layer are white PP-R, and the middle layer is black PP-R. The invention can ensure the attractiveness of appearance and avoid influencing the water supply quality due to moss breeding in the water pipe.