37 results about "Water stagnation" patented technology

An improved wash tube is provided for a dishwasher. The wash tube is mounted on the upper rack and has a first end adapted to be releasably docked with the water manifold in the back of the dishwashing chamber as the rack is moved between the extended loading position and the retracted wash position. The inner end of the wash tube includes a curved cap which increases the docking tolerance and which presents a substantially downwardly oriented water inlet to the wash tube. The cap creates water stagnation adjacent the inlet such that the water velocity is substantially reduced and the pressure increased. The second end of the wash tube is connected to the spray arm which rotates as water is ejected from the spray arm nozzles at increased pressure. The cap allows the wash tube to fully dock into the manifold without obstructing the water inlet.

The invention relates to a subsurface flow constructed wetland sewage treatment system by drop water aeration oxygenation, composed of drop water aeration subsurface flow constructed wetlands in one stage or multistage series. Each stage of drop water aeration subsurface flow constructed wetland comprises a bed body, an inflow barricade, an outlet barricade and a drop water baffle; wherein a plurality of deflectors, gravel fillers and emergent aquatic plants are arranged in the bed body between the inflow barricade and the outlet barricade. The invention is even in water distribution, small inwake space and uniform in water impact, residence time of sewage in the bed body is extended, blocking is difficult, thus being beneficial to improving effluent quality and biodegradation of microorganism on nutrient such as nitrogen, phosphor and the like in the sewage, and construction and running cost is low. The invention, under the joint action of the effects, can effectively degrade pollutant of urban and town domestic sewage, a small amount of industry waste water and farm drainage and is applicable to mountain land and hilly country with certain gradient.

The present invention provides a water filtration device, which includes: a filter tank 100 with an upper opening and a partition wall 110 inside, more than one filter plate 200, a filter layer 400, a plurality of air injection pipes p, a maintenance hole 500 and a water storage The filter plate 200 is located above the filter tank 100 and the partition wall 110 to close the filter tank 100; the air injection pipe p is located below the filter plate 200; the maintenance hole 500 is located in the The middle part of the filter plate 200 ; the filter layer 400 is located above the filter plate 200 ; the water storage part is located above the filter layer 400 and the filter plate 200 . The water filtering equipment provided by the present invention avoids stagnant water areas during backwashing, improves the quality of purified water and enhances the trust of consumers. The filter plate is easy to install, can not only improve work efficiency but also shorten construction period and save installation cost.

The invention relates to a mulching film covering method for farmland ridge-and-furrow rainwater-harvested planting. The mulching film method includes the steps that the surface of a ridge body is covered with a mulching film, and the edge portions, on the two sides of the ridge body, of the mulching film is coiled inward in the direction of the ridge body and fixed. Compared with a traditional mulching film covering method, the mulching film covering method eliminates water stagnation regions formed by film-pressing soil on the film in a joint area of the ridge and a furrow, it is ensured that natural rainwater collected on the mulching film on the side of the ridge completely flows into soil in planting trenches in the farmland ridge-and-furrow rainwater-harvested planting process, fixation of the mulching film can be met, the mulching film is prevented from being uncovered by wind, it can be avoided that the film-pressing soil on the edges of the mulching film blocks, absorbs and dissipates drought-region farmland ridge surface rainwater converged runoff to makes rainwater unavailable, and the rainwater harvesting efficiency of the farmland ridge-and-furrow rainwater-harvested planting technology is further improved.

The invention relates to a traditional Chinese medicinal preparation for treating glaucoma, and belongs to the technical field of traditional Chinese medicines. The preparation is prepared from the following raw materials: 8-12g of scutellaria baicalensis, 5-7g of radix bupleuri, 6-10g of radix scrophulariae, 8-12g of rhizoma anemarrhenae, 8-10g of selfheal, 8-12g of plantain seed, 22-27g of concha haliotidis, 15-20g of bighead atractylodes rhizome, 10-15g of raw rehmannia root, 6-10g of dried tangerine peel, 6-10g of ligusticum wallichii, 8-12g of liquorice, 12-18g of radix paeoniae alba, 12-18g of medlar, 6-10g of Chinese angelica, 8-12g of poria, 2-4g of rheum officinale, 5-7g of divaricate saposhnikovia root, and 1-3g of cornu saigae tataricae. The traditional Chinese medicinal materials adopted in the traditional Chinese medicinal preparation are compatible, can complement one another to bring out the best, and have the effects of clearing heat and liver-fire, eliminating stagnation and scrofula, regulating qi and resolving depression, activating blood circulation to remove stasis, dispelling wind-heat, clearing head and eyesight, and the like, and are synergetic in drug effects; the traditional Chinese medicinal preparation can treat both symptoms and root causes, does not have side effects, is remarkable in curative effect on glaucoma caused by emotion depression, qi stagnation, exuberance of liver and gall and spiritual water stagnation at an effective rate of 98 percent and cure rate of over 95 percent, and does not have toxic or side effects.

The invention provides a stagnation-removing pill for treating functional indigestion, which is prepared by the following traditional Chinese medicine raw materials according to parts by weight: 1-8 parts of rhubarb, 2-11 parts of hawthorn, 1-5 parts of tangerine peel, 1-8 parts of malt, 2-11 parts of semen pharbitidis, 2-11 parts of six medicated leaven, 1-5 parts of trogopterus dung, 1-5 parts of green tangerine peel, 1-5 parts of rhizoma sparganii, 1-5 parts of rhizoma zedoariae and 1-5 parts of rhizoma cyperi. The clinical taking of hundreds of patients for more than ten years proves that the pill has a very good treating function to the patients with the functional indigestion caused by food stagnation, meat stagnation, water stagnation and qi stagnation.

The invention provides an oxygen-melting anion decorative water wall capable of purifying air, which adopts the following technical scheme: a fish tank is located at the lower part of a curtain wall; water pumps are respectively arranged at two ends of an built-in pipeline, are located at the inner part of the fish tank, and are connected with filtering openings; and water outlets are arranged at the part of the built-in pipeline at the top end of the curtain wall. The oxygen-melting anion decorative water wall has the following beneficial effects: when water shocks decorative and frictional bulges, static electricity is generated and negative oxygen ions are released due to the friction between the flow water and the surface of the bulges, so that the oxygen-melting anion decorative water wall has the functions of realizing sterilization, adsorbing dust, suspended matters and microorganisms, increasing the oxygen-containing concentration and the like; as water content per se is scattered during the flowing process, the content of water mist in the air can be increased, the air humidity can be regulated, and the oxygen-containing content in water can be increased; as the water flows down along the curtain wall, and flows into the fish tank, the means of raising fish is changed from standing water into flowing water; large foreign matters in the fish tank can be filtered during the filtering process of the filtering opening; moreover, as the decorative and frictional bulges blocks the flow of the water, noise can be lowered.

The present invention relates to systems for circulating water in a potable water piping network to prevent the stagnation of water in this piping network. Several systems are disclosed wherein partitioned pipes, pumps, partitioned headers, check valves, and scoop inserts are used to keep the water in movement inside the pipes. The present invention comprises several pumping arrangements for circulating water inside fire hydrant laterals and inside the branch pipes along dead-end streets where most of the water stagnation occurs. Although partitioned pipes are used and opposite flows are induced in opposite pipe halves, full pipe flow to each hydrant is maintainable in case of emergency. Inside buildings, the water is kept in movement inside a loop pipe that extends close to each water outlet such that the water is maintained fresh at each outlet.

The invention relates to an eco-stagnation and filtration system with a nitrogen removal function. The eco-stagnation and filtration system mainly comprises a stagnation zone and a filtration zone. The eco-stagnation and filtration system is constructed mainly from a municipal landscaping greenland. Through filling with a percolation matrix and plantation of specific plants, city overland runoff is delayed and is subjected to percolation. When overland runoff is produced on the water impermeable earth surface, initial heavy pollution runoff enters into the stagnation zone, then permeates into the stagnation zone, then is filtered, then permeates into the lower-middle part of the stagnation zone and is momentarily stored in the stagnation zone, and water collection and discharge pipes arranged at the bottom broken stone layer control a water flow amount so that the initial heavy pollution runoff can be retained for a long time and surface runoff NO<3>-N reduction time requirements are satisfied. When the initial surface runoff in the stagnation zone is saturated and overflows a water stagnation layer in the stagnation zone, later surface runoff overflows and enters into the filtration zone, then permeates into the filtration zone, then is filtered, then permeates into the broken stone layer at the bottom of the filtration zone, and then is discharged into a municipal rainwater pipe net by open water collection and discharge pipes in the broken stone layer.

Disclosed herein is a cooling system for a chamber of an ingot growth apparatus. In the present invention, guide blades (180) are provided in a base plate (100) at positions adjacent to unevenly curved parts of a guide line (170), which is the base plate (100), and along which cooling water flows. Furthermore, guide blades (360) are provided in a lid (300) at positions adjacent to ports, which are provided in the lid (300) and interfere with the flow of cooling water. As such, in the present invention, the guide blades are provided in the base plate (100) and the lid (300), which define the chamber, at positions at which cooling water creates stationary vortices, thus solving a problem of water stagnation, thereby increasing a cooling effect.

The invention discloses a cooling water ring device for an injection mold, belonging to the technical field of molds. The device mainly comprises a fixed hot nozzle body, a cooling water ring body, an external pressure sealing rubber ring, an internal pressure sealing rubber ring, a common sealing rubber ring and the like, wherein the internal pressure sealing rubber ring is in surface contact with the outer wall and the root of an internal pressure rubber ring sealing column, and is in surface contact and seal fit with the cooling water ring body; the external pressure sealing rubber ring is in surface contact with the inner ring and the bottom of an external pressure sealing rubber ring groove, and is in surface contact and seal fit with the fixed hot nozzle body; the fixed hot nozzle body is in threaded fit with the cooling water ring body and is sealed through welding spots. Natural water flows into a ring-shaped cavity through a water inlet passage hole in order to cool the periphery of the hot nozzle, and then flows out of the cooling water ring device through a water outlet passage hole; the cooling water ring device can rapidly absorb the heat at the periphery of the hot nozzle without local water stagnation, thus solving the undesirable situations of flow mark, gas mark and wire drawing derived from the fact that the surface temperature of the product is difficult to control.

The invention discloses a thermal waste water treatment apparatus employing a heat pump. The apparatus comprises a waste water evaporator, a heat pump and a waste water circulating pump; and the waste water evaporator comprises a waste water deoxidizing zone, a saturated vapor zone, a demister, a high concentration waste water stagnation zone, a heat exchange zone, a drain storage zone and a highconcentration waste water distribution zone from top to bottom. In addition, the invention also discloses a thermal waste water treatment method employing the heat pump. Waste water is first evaporated into water vapor; the heat pump is used to increase steam parameters, and the steam is supplied to the heat exchange zone and cools the high concentration waste water into qualified condensed water, which is drained outside; the high concentration waste water absorbs vaporization latent heat of the steam with high parameters, then part of the high concentration waste water evaporates into watervapor; so a heat circulation is completed. According to the invention heat is only needed during a starting process; at other time, the heat circulation within the apparatus is utilized to reduce energy consumption of the apparatus. The apparatus of the invention is simple, has small land occupation, low costs; and the quality of condensed water at a waste water outlet level reaches national highstandard.

The invention relates to the technical field of construction engineering, in particular to a rock soil slope anti-blocking forming water seepage drainage pipe. The drainage pipe comprises a water drainage pipe body; the water drainage pipe body comprises a water seepage section arranged on the inner side of a water stagnation layer and a drainage section arranged on the outer side of the water stagnation layer, water seepage holes are formed in the water seepage section, and an anti-blocking joint is arranged at the end part of the water seepage section; the anti-blocking joint comprises a joint pipe, a rotating shaft, a bearing, stirring blades and a balancing weight; one end of the joint pipe is in communication with the water seepage section and is fixedly connected to the outer wall ofthe water seepage section, and drainage holes are formed in the end surface of the other end of the joint pipe at intervals; the rotating shaft is arranged in the joint pipe, the two ends of the rotating shaft are connected to the inner wall of the joint pipe through bearings, and at least three stirring blades are uniformly distributed on the rotating shaft; and one ends of the stirring blades are fixedly connected to the rotating shaft, and the other ends of the stirring blades are fixedly connected to the balancing weight, and the distance between the balancing weight and the rotating shaft is equal to the distance between the rotating shaft and the end surface, provided with the draining holes, of the joint pipe. The drainage pipe has the advantages of being large in filtering area, high in drainage efficiency, free of blockage and long in service life.

A mixed-flow and countercurrent swimming pool includes a swimming pool body, a water circulating purifying and supplying system, a disinfecting system, a heating and constant temperature system and awater quality regulation system. The swimming pool body is connected with each system through pipelines and internally provided with a bottom emptying opening, water inlets, an overflow backwater opening, pollution sucking openings, an escalator, a swimming lane line and an underwater lamp. The bottom emptying opening is arranged on one side of a deep water area of the bottom of the swimming poolbody. The water inlets are distributed at the bottom of the swimming pool body in a net shape. The overflow backwater opening is arranged in an overflow backwater tank at the periphery of the swimmingpool body. The pollution sucking openings are formed in the position of 200 mm below the water surface of the swimming pool body and evenly formed. The water circulating purifying and supplying system adopts a countercurrent or mixed-flow circulating mode. By means of a construction technology for the mixed-flow and countercurrent swimming pool, water flow distribution uniform can be achieved, short flow, eddy current and a stagnant zone do not exist, it is ensured that the PH value of free residual chlorine of different water layers is uniform and consistent, and the situation of pollutant deposition at the bottom of the swimming pool is reduced effectively.

The invention provides a water stagnation zone assembly. The assembly comprises a water retaining beam, a shower compartment weather bar and a bathroom doorsill, the collapsibility of the water retaining beam is 6-8 mm, the shower compartment weather bar comprises a weather bar inner core and an external wrapper, the inner core of the whether bar and the ground are integrated, the distance being 0.5 cm is made to serves as connection of the outer wrapper and the inner core of the weather bar, and the portion 0.5-0.8 cm away from the bathroom doorsill serves as a bonding layer of stone. The invention further provides a construction method of the water stagnation zone assembly. The method comprises the following steps that 101, the water retaining beam is made; 102, after ground pouring andtamping are completed, the shower compartment weather bar is made; 103, the bathroom doorsill is made. Accordingly, the water stagnation zone assembly is arranged in a bathroom, the water stagnation effect of the bathroom is strengthened, and drying of a drying area is guaranteed. In addition, the doorsill is arranged at a bathroom door, water overflowing is prevented, and the effect that the bathroom and other areas are kept dry is further strengthened.

The invention discloses a traditional Chinese medicine capsule for preventing and treating cyesedema and a preparation method of the traditional Chinese medicine capsule, belonging to the field of traditional Chinese medicines. The traditional Chinese medicine in the capsule is prepared from the following active ingredients in parts by weight: 15-30 parts of Chinese yam, 15-30 parts of rhizoma smilacis glabrae, 15-30 parts of ramulus mori, 15-30 parts of liriope spicata, 5-15 parts of rhizoma zingiberis, 5-15 parts of white atractylodes rhizome, 5-15 parts of rhizoma alismatis, 5-15 parts of teasel root, 5-15 parts of radix angelica sinensis, 5-15 parts of chingma abutilon seeds, 5-15 parts of ginseng, 3-10 parts of rhizoma chuanxiong, 3-10 parts of cortex acanthopanacis, 3-10 parts of radix paeoniae rubra, 3-10 parts of fourstamen stephania root, 3-10 parts of radix scutellariae, and 3-10 parts of the shell of areca nut. The traditional Chinese medicine adopts the formula aiming at cyesedema which is caused by spleen-deficiency syndrome, deficiency of kidney-yang, heart and lung compelled by water, qi and water stagnation, and cold-dampness syndrome, has the efficacies of nourishing blood and clearing heat, resolving dampness and eliminating swelling, warming the kidney and inducing diuresis, tonifying the spleen and preventing miscarriage, regulating qi-flowing for activating stagnancy, as well as dispelling coldness and eliminating moisture, is free of untoward effects to the parent, the embryo and the fetus, free of the teratogenesis phenomenon, good in absorption effect, and high in cure rate, and is suitable for popularization and application clinically.

The invention provides a concrete box-type fish shelter. The concrete box-type fish shelter comprises a cubic fish shelter body prepared from a concrete structure, the inside of the fish shelter bodyis hollow, a front opening is formed in the right side of the front face of the fish shelter body, and a rear opening is formed in the left side of the rear face of the fish shelter body. Two parallelleft openings are formed in the upper side of the left face of the fish shelter body, two parallel right openings are formed in the lower side of the right face of the fish shelter body, two upper openings are formed in the middle of the upper face of the fish shelter body, and a bottom opening is formed in the middle of the bottom face of the fish shelter body. The concrete box-type fish shelteris of a reinforced concrete structure, only a ring beam is arranged on the bottom face, the contact area with the seabed is small, benthos is little influenced, two convection openings are formed inthe upper side and the lower side of the left face respectively, and two convection openings are formed in the upper side and the lower side of the right face respectively. Water inflows from the topand outflows from the bottom or inflows from the bottom and outflows from the top, the seawater flow rate is reduced, a stable water environment is provided for fishes, and water stagnation cannot beformed in the fish shelter.

The present invention relates to a tubular molded body capable of full-wrapping a membrane module, and an industrial filter assembly using the same.The tubular molded body of the present invention is a molded body consisting of a transparent plastic material and having a constant outer diameter that protects the membrane module through a simple manipulation using a physical fastening means to minimize the space for water stagnation, and prevents the accumulation of Mg2+ and Ca2+ to avoid a rise of the differential pressure caused by contaminants. Furthermore, the present invention provides an industrial filter assembly including a tubular molded body encasing from one end to the other of the membrane module, an industrial facility vessel protecting the exterior of the tubular molded body.

The invention provides a method for cultivating pollution-free frogs, including the steps of farm construction, breeding time, water level of flowing ditch, breeding density, feeding of bait, temperature regulation and disease prevention. Similarly, the wider activity ridge planted with trees and grass is similar to the activity environment by the stream, which allows frogs to have a better space for play and activities, and the residence composed of slate and cave platform is also suitable for frogs to burrow, pergola, spray with spray head The tube can create a cool and humid environment suitable for the survival of frogs, so the constructed farm is basically similar to the natural ecological environment, which can give the frogs a better space for play and activities, promote the metabolism of the frogs, and make the frogs grow better; The water flow pattern from the ditch to the drainage ditch will not cause stagnant water area, the water body is clear, the bacteria are not easy to breed, and the incidence rate is reduced.

A universal and rapid system suitable for covering boats or any other vehicle and object. The purpose is to realize a covering system which is practical, functional in the positioning phase and compact in storage, to overcome problems related to water stagnation and bad air circulation, and to get the advantage of waterproofing, of protection from atmospheric agents. The system comprises a cover (1), a coupling means (10) placed on it, a system for lifting (38) anchored to a support structure (39) wherein said cover (1) is connected to a sleeve (15). The system, in its several applications, diversifies itself for the various possible embodiments of the several elements constituting the system, for example for the type and shape of the cover, for the type of the sleeve, for the modalities of anchoring.

The invention discloses a fishpond sterilization cooling device. The fishpond sterilization cooling device comprises a first pipeline, a first space is formed in the first pipeline, a second pipeline is fixedly arranged on the right side face of the first pipeline, a second space is formed in the second pipeline, and the second space communicates with the first space. A first groove is formed in the left side wall of the second pipeline, a second groove is formed in the left side wall of the second pipeline, and the second groove is located above the first groove and communicates with the first groove. Oxygen can be supplied to a fishpond in the weather with the too high temperature, fish is prevented from dying due to oxygen deficit, anaerobic bacteria in the fishpond can be taken away while the oxygen is supplied, a sunshade net can be automatically stretched out for shading and cooling, fish food can be put after the sunshade net is stretched out, water stagnation in the pipeline can be automatically removed while the oxygen is supplied, and the service life of the pipeline is prolonged.

The invention relates to a subsurface flow constructed wetland sewage treatment system by drop water aeration oxygenation, composed of drop water aeration subsurface flow constructed wetlands in one stage or multistage series. Each stage of drop water aeration subsurface flow constructed wetland comprises a bed body, an inflow barricade, an outlet barricade and a drop water baffle; wherein a plurality of deflectors, gravel fillers and emergent aquatic plants are arranged in the bed body between the inflow barricade and the outlet barricade. The invention is even in water distribution, small in wake space and uniform in water impact, residence time of sewage in the bed body is extended, blocking is difficult, thus being beneficial to improving effluent quality and biodegradation of microorganism on nutrient such as nitrogen, phosphor and the like in the sewage, and construction and running cost is low. The invention, under the joint action of the effects, can effectively degrade pollutant of urban and town domestic sewage, a small amount of industry waste water and farm drainage and is applicable to mountain land and hilly country with certain gradient.

The invention discloses an anti-water-stagnation air energy water heater device. The anti-water-stagnation air energy water heater device comprises a bottom plate; a stirring power device is fixedly connected with the top end of a water storing box; an air energy heating chamber is fixedly connected with the top end of the bottom plate and is located on the right side of the water storing box; oneside of the air energy heating chamber is communicated to the water storing box through a circulating water entering pipe; the end, located in the air energy heating chamber, of the circulating waterentering pipe is communicated with an air energy heating device; an air refrigerator is fixedly connected with the right side of the air energy heating device; the end, away from an air filter, of aventilation pipe is communicated with an air evaporator; and an exhaust port is formed in one side of the air energy heating chamber. The invention relates to the technical field of water heaters. Theanti-water-stagnation air energy water heater device solves the problems that a current air energy eater heater cannot prevent that water goes bad when being stored for a long time, and the energy loss and waste is serious when the water is heated by air energy, and achieves the purposes that resources are saved, and energy is reasonably utilized.

The invention relates to the field of water-cooled air-conditioning clothing, in particular to a water-cooled air-conditioning clothing for fire rescue and rescue, which includes a main body of the air-conditioning clothing and a water cooling circulation device. At the middle end of the main body of the air-conditioning suit, a fixed pipe clamp is fixed inside the main body of the air-conditioning suit. The inner side of the fixed tube clamp is fitted with the water-cooled tube, and the inner side of the fixed tube clamp is fixed with a vibration block, so that the water-cooled tube can be firmly fixed. At the same time of setting the position, the vibration block can be used to make the vibration generated during daily exercise of people be contacted by the vibration block, and then use the roller to rotate and contact the contact block on the water-cooled tube to generate vibration to stick the impurities on the inner wall of the water-cooled tube Remove it to achieve the effect of preventing clogging of the water-cooling tube and improving the service life, and the contact block is set in a trapezoidal shape inclined on both sides, so that the contact vibration efficiency of the roller and its corners is higher and it will not get stuck.

The invention relates to a method for multifunctional ecological control through sponge. The method includes constructing a water stagnation accumulation pipe network and an ecological control layer (comprising a plant oxygen production layer in a plant form thereon); the water stagnation accumulation pipe network gathering and storing water from the surface and / or underground, and delivering the stored water to plants of the ecological control layer to supply water for growth and evolution of organisms of the ecological control layer. According to the method, recycling of water resources and ecologic control engineering are combined, the problems of flood and drought are solved, formation, development and maintenance of the ecologic control system are further promoted, and great development and great revolution of biological oxygen movement are boosted. The method is suitable for being applied to construction fields of cities, towns, new countryside, constructed wetlands, industrial and mining establishments and the like, is particularly applicable to ecological control in regions of mines, oil field, geological-hazard-prone areas, wilderness, saline-alkali soil, deserts, estuaries, coasts, mud flat, wetlands, water-level-fluctuating zones, sides of traffic roads and the like, as well as other regions needing ecological remediation in people's production and living environments.

A universal and rapid system suitable for covering boats or any other vehicle and object. The purpose is to realize a covering system which is practical, functional in the positioning phase and compact in storage, to overcome problems related to water stagnation and bad air circulation, and to get the advantage of waterproofing, of protection from atmospheric agents. The system comprises a cover (1), a coupling means (10) placed on it, a system for lifting (38) anchored to a support structure (39) wherein said cover (1) is connected to a sleeve (15). The system, in its several applications, diversifies itself for the various possible embodiments of the several elements constituting the system, for example for the type and shape of the cover, for the type of the sleeve, for the modalities of anchoring.

The invention discloses a cooling water ring device for an injection mold, belonging to the technical field of molds. The device mainly comprises a fixed hot nozzle body, a cooling water ring body, an external pressure sealing rubber ring, an internal pressure sealing rubber ring, a common sealing rubber ring and the like, wherein the internal pressure sealing rubber ring is in surface contact with the outer wall and the root of an internal pressure rubber ring sealing column, and is in surface contact and seal fit with the cooling water ring body; the external pressure sealing rubber ring is in surface contact with the inner ring and the bottom of an external pressure sealing rubber ring groove, and is in surface contact and seal fit with the fixed hot nozzle body; the fixed hot nozzle body is in threaded fit with the cooling water ring body and is sealed through welding spots. Natural water flows into a ring-shaped cavity through a water inlet passage hole in order to cool the periphery of the hot nozzle, and then flows out of the cooling water ring device through a water outlet passage hole; the cooling water ring device can rapidly absorb the heat at the periphery of the hot nozzle without local water stagnation, thus solving the undesirable situations of flow mark, gas mark and wire drawing derived from the fact that the surface temperature of the product is difficult to control.