50results about How to "Avoid pipe blockage" patented technology

The invention belongs to the technical field of environment-engineering sewage processing, and concretely relates to a ladder-type composite constructed-wetland apparatus for processing low-pollution water. The apparatus comprises an elevated water-distribution tank, a first-grade vertical-flow constructed wetland, a second-grade composite vertical-flow constructed wetland, a third-grade subsurface-flow constructed wetland and an anaerobic water-collecting tank; the elevated water-distribution tank is a cavity with a sealed top end, the cavity is inside paved with a filler, and a water-collecting pipe net is arranged close to the bottom; ecological plants are grown surfaces layers of the first-grade vertical-flow constructed wetland, the second-grade composite vertical-flow constructed wetland and the third-grade subsurface-flow constructed wetland, matrix and fillers are used to pave in inner layers of the three kinds of constructed wetlands, and water-collecting pipe nets are arranged at bottom layers of the three kinds of constructed wetlands; and the anaerobic water-collecting tank is an underground facility, the top end is provided with a cover, and the inner layer is paved with a soft filler. The beneficial effects comprise that the apparatus is high in decontamination efficiency, low in occupied land area and construction cost, low in anaphase management cost and simple to operate, and is suitable for processing of rural domestic sewage and low-pollution water.

The invention provides an anti-freezing sewage collection system. The anti-freezing sewage collection system comprises a water storage tank, a water supply pipe, a water consuming device and a sewage tank, wherein the water storage tank supplies water to the water consuming device through the water supply pipe. The anti-freezing sewage collection system further comprises a gas supply device for generating compressed gas, wherein a gas supply pipeline of the gas supply device is communicated with the water supply pipe, a valve is arranged on the water supply pipe on the upstream of the communication position, a valve is also arranged on the gas supply pipeline, and the gas supply device can inject the compressed gas into the water supply pipe and empties a water supply pipeline on the downstream of the water supply pipe. The invention further provides a method for emptying the water supply pipeline of the anti-freezing sewage collection system. By means of the anti-freezing sewage collection system, the water supply pipeline can be emptied, residual water in the water supply pipeline is prevented, pipeline blockage caused by the freezing of the residual water are avoided, and therefore a better ant-freezing effect is achieved.

A CO2 steam-solid grain refrigeration system, which contains refrigerant CO2, compressor, condenser, throttle valve, gas-liquid separator, high pressure flow adjusting valve, adjustable nozzle, sublimator, temperature sensor whose signal controlling adjustable nozzle. Said invention realizes the solid refrigerant transmission in the system, reduces refrigerated temperature, in favor of raises system performance and has fine environment protection.

The invention discloses a drain pipe. According to a formula, the drain pipe comprises, by mass, 3-5 parts of nano carbon materials, 2-3 parts of nano titanium dioxide, 3-4 parts of nano silicon dioxide, 3-5 parts of nano calcium carbonate, 5-6 parts of talc calcium, 10-12 parts of polytetrafluoroethylene, 12-15 parts of polyethylene, 10-15 parts of polypropylene, 15-18 parts of polyvinyl chloride, 12-15 parts of polystyrene, 8-10 parts of polyester, 10-12 parts of phenolic resin, 3-4 parts of zinc, 6-8 parts of aluminum, 8-10 parts of cast iron and 2-3 parts of manganese. The drain pipe can prevent the phenomena of pipeline blockage, water hammering and the like, frictional resistance of the inner wall of the drain pipe and water is extremely low, maintenance cost of the later period is reduced, and convenience is brought to life of people.

The invention relates to a compound pipe assembly for conveying sea water. The compound pipe assembly for conveying the sea water comprises a base pipe, an annular steel net and flanges, wherein the annular steel net is tortuously arranged on the inner wall of the end portion of the base pipe, and the flanges are arranged at the two end portions of the base pipe; and annular grooves are formed in the inner surfaces of the joint ends of the flanges and the base pipe, anticorrosive coatings are arranged on the outer surface and the inner surface of the base pipe correspondingly, the annular steel net is located in the anticorrosive coating on the inner surface of the base pipe, and the anticorrosive coating on the inner surface of the base pipe extends toward the outer side of the pipe end into the annular grooves. The invention further provides a manufacturing method of the compound pipe assembly for conveying the sea water. The method comprises the steps of manufacturing of the compound base pipe, plastic coating treatment and the like. The compound pipe assembly has the technical effects that the inner coating is firm, and not prone to falling down and being damaged, the anticorrosion performance, the anti-impact performance, the anti-press performance and the stability are all good, the compound pipe assembly has very wide application range, and is suitable for fields of petroleum and natural gas conveying, pipes for mine and industry, drinking water pipes, water draining pipes and the like.

The invention discloses a multifunctional integrated pump station, particularly relates to the technical field of integrated pump stations. The multifunctional integrated pump station comprises a pumpstation body. A table seat is arranged on the lower surface of the pump station main body. A drain outlet is formed in the front surface of the table seat. A water inlet is welded to the outer surface of the lower end of the pump station main body in a penetrating manner. A dirt removing plate is mounted at the portion, located at the lower position of the water inlet, of outer surface of the lower end of the pump station main body. A water outlet is welded to the outer surface of the upper end of the pump station main body in a penetrating manner. A top cover is rotationally mounted on the upper surface of the pump station main body. A gas outlet pipe is welded to one side of the upper surface of the pump station main body in a penetrating manner. A support rod is welded to the other side of the upper surface of the pump station main body. A control cabinet is mounted on the upper surface of the support rod. A stirring box is arranged at the lower end in the pump station main body. According to the integrated pump station, a plurality of filtering devices are arranged, the device can be remotely monitored in the operating process, and the sewage discharging and water outlet of the device are performed through different channels.

The invention relates to the technical field of water supply and drainage for civil use, and in particular relates to a water resource purification and recovery device and a water supply and drainage system. The water resource purification and recovery device comprises a filtering device and a flow splitting recovery device, wherein the filtering device is mounted on a water supply house-entering pipe; the filtering device is detachably connected with the water supply house-entering pipe, and is used for filtering tap water in the water supply house-entering pipe; the flow splitting recovery device is mounted on a water drainage pipe below a water basin, and is used for carrying out flow splitting recovery on sewage in the water drainage pipe; the flow splitting recovery device comprises a water drainage filter, a wastewater discharging pipe and a sewage recovery pipe; the water drainage filter is detachably communicated with the water drainage pipe, and is used for filtering water in the water drainage pipe; the wastewater discharging pipe is used for discharging wastewater, and the sewage recovery pipe is used for filtering and recycling the sewage. The invention further provides the water supply and drainage system. According to the water resource purification and recovery device and the water supply and drainage system, the tap water can be purified in a water supply process,s and a pipeline is effectively prevented from being blocked in a water drainage process; meanwhile, water resources can be effectively saved.

The invention discloses an online measurement device for the size and shape of a crystal in a high-solid-content crystallization process. The online measurement device comprises a solution amplifier,a measurement device, a peristaltic pump, a crystallization kettle, a dilution device and a liquid storage tank, a crystal-containing solution is arranged in the crystallization kettle; the inner wallof the solution amplifier is smooth, one end is an amplification end, and the other end is a contraction end; the contraction end of the solution amplifier is communicated with one end of the liquidstorage tank and one end of the crystallization kettle; the amplification end of the solution amplifier is respectively communicated with the dilution device and the peristaltic pump; the peristalticpump is communicated with the other end of the crystallization kettle; the solution amplifier, the peristaltic pump and the crystallization kettle form a complete passage through a pipeline; a measuring instrument of the measuring device is arranged in the outer side of the solution amplifier and focuses on the solution in the amplification end of the solution amplifier; and at least one stop valve is mounted on each branch of the pipeline. According to the invention, measurement of a crystalline solution with solid content higher than 10% is realized; and the pipeline heat preservation and constant-temperature tank is designed, so that the problems of solution crystallization on the pipe wall and pipeline blockage are avoided.

The invention discloses a flat strip-shaped drainage device which is applied to the operation implantation at the pars plana of a ciliary body to treat the refractory glaucoma. Aqueous humor in an eye is led out of the eye and oozed to the lower part of a conjunctiva through aqueous humor drainage ports and aqueous humor drainage grooves, the aqueous humor drainage volume which is needed in the treatment of the refractory glaucoma can be satisfied, the vitreous-body incarceration at an incision and the incision scar are avoided, and the anterior chamber complication is reduced. The special drainage device is processed by adopting material silica gel or absorptive biomaterial, and is provided with two aqueous humor drainage ports, two or three aqueous humor drainage grooves, and two suture holes. One end of the drainage device is an intraocular implanting end which is 3mm from the suture holes; a head takes the shape of a smooth oval flat strip; the aqueous humor drainage ports are respectively arranged in the two corresponding drainage grooves; when in operation, the implanting end is implanted in the eye and is fixed through suture; the other end of the drainage device is an extraocular drainage end which is relatively long and 10mm from the suture holes, and is provided with two or three drainage grooves.

The invention discloses a double-alkali desulfurization and dedusting recycling device. The utility model comprises a desulfurization tower, the desulfurization tower is connected to a dust-removal chamber, the dust-removal chamber is connected to a flue gas inlet, a nozzle is arranged on the top of the desulfurization tower, the nozzle is connected to a sodium hydroxide tank through a water pipe,a solution recovery tank is arranged at the bottom of a spray tower, the solution recovery tank is connected to a reaction tank, the reaction tank is connected with a calcium hydroxide tank and a treatment tank, and the treatment tank is connected to the sodium hydroxide tank. The invention also discloses a double-alkali desulfurization and dedusting recycling method. The method comprises the following steps: step one, flue gas dedusting; step two, wet desulfurization; and step three, treatment recycling. The method performs a reaction on a calcium sulfate solution and a sodium hydroxide solution which are difficult to be treated after the reaction to generate calcium sulfate and a calcium hydroxide solution, recovers the solid calcium sulfate, and recycles the sodium hydroxide solution,the desulfurization products are fully utilized, the recycling of the desulfurization material is realized, the energy is saved, pipe blockage can be effectively prevented, the cost is reduced, and the enterprise profits can be increased.

The invention discloses a method for preparing hydrogen fluoride through low-grade superfine fluorite powder. The method comprises following steps of a. adding 98 acid and 105 acid into a niacin reactor according to a proportion and mixing; b. putting 500-300 meshes of fluorite powder containing 90-93% of calcium fluoride and sulfuric acid treated through acid mixing in the niacin reactor into a pre-reactor according to a conventional proportion for pre-reaction; c. putting the fluorite powder treated in above steps, sulfuric acid and hydrogen fluoride into a reaction converter, and under the action of a spiral crushing device in the reaction converter, constantly exchanging heat with the 300-400 DEG C inner wall of the converter so as to finish the reaction, wherein when the conversion rate of calcium fluoride reaches 97%, fluorgypsum is sent to a gypsum groove, and the gas hydrogen fluoride escapes from the burner of the reaction converter; d. sending the gas hydrogen fluoride escaping from the burner of the reaction converter in the last step into a dust clearing device to be cleared and separated. The invention also discloses a device for the method.

The invention provides a purifying method and set of high-temperature oil-bearing waste gas for a heat-setting machine. The heat in the high-temperature oil-bearing waste gas is recovered by a gas-water heat-tube efficient heat exchanger, part of components in the gas are condensed; large solid particles and condensed liquid oil particles in the gas are removed by a novel deoiling dedusting device; a ramie filter loaded with ramie fiber tubes is used for fine filtering so as to further remove fine particles from the gas. The purifying method and set allows the high-temperature oil-bearing waste gas from the heat-setting machine to be effectively purified and has the advantages such that the process is simple, purifying efficiency is high, energy consumption is reduced and operation cost is low.

The invention discloses a dynamic hole cleaning method for an ultra-deep impermeable wall. The method includes the steps that after construction of a trench hole of the ultra-deep impermeable wall iscompleted, the trench hole is cleaned, and a plurality of embedded pipes, a joint pipe and a plurality of pouring conduits are lowered into the trench hole; air pipes for applying air force to the trench hole to be poured with concrete are lowered between the adjacent pouring conduits; and the concrete is poured into the trench hole through the pouring conduits, continuous lifting slurry discharging is carried out on the trench hole poured with the concrete by utilizing the air force applied by the air pipes to synchronously discharge slurry-mixed floccules formed by the upper layer of the concrete in the trench hole and slurry, and then the vertically continuous ultra-deep impermeable wall is formed by the continuously poured concrete. By means of the method, impermeable wall constructioncan be carried out on a river dike with the largest depth exceeding 180 meters, the slurry-mixed floccules and waste residues at the hole bottom are thoroughly removed during impermeable wall construction, the hole cleaning effect is guaranteed, the situation of pipe blockage is avoided, concrete pouring can be continuously carried out, and the phenomenon that the impermeable wall breaks due to cementation and hardening of the slurry-mixed floccules will not occur.

The invention discloses a concrete wet spraying machine. The concrete wet spraying machine comprises a pumping system, a concrete conveying pipeline connected with the pumping system, and a spraying head arranged at the outlet end of the concrete conveying pipeline. The concrete conveying pipeline comprises a conveying straight pipe and a connecting bent pipe. The connecting bent pipe is provided with a cleaning air inlet pipe. The cleaning air inlet pipe communicates with the interior of a pipe body of the connecting bent pip in a sealed mode, and the air outlet direction of the cleaning air inlet pipe is arranged along the central axis of the conveying straight pipe. The cleaning air inlet pipe is externally connected with an air supply source. The spraying head is arranged at the outlet end of the conveying straight pipe and provided with a rotational flow structure, an installation structure and an air inlet structure. The rotational flow structure comprises a rotational flow head coaxially fixed to the front end of the spraying head. The installation structure comprises an annular installation plate. The air inlet structure comprises an air inlet sleeve arranged at the front end of the rotational flow head in a sleeving mode. According to the concrete wet spraying machine, the spraying effect is improved, and subsequently, the conveying pipeline is efficiently cleaned.

The present invention relates to a fuel tank of fuel cell using B compound as fuel, belonging to the field of fuel cell technology. Said fuel tank is mainly characterized by that it has a mixed liquid inlet tube mounted in the lower portion of one side of the fuel tank, and has a pure BH4- discharge tube mounted on another side of the fuel tank, and the interior of its tank body is divided into a mixed liquid storage chamber for storing mixed liquid formed from BH4-, BO2- and 2H2O, etc. which are flowed into the storage chamber from mixed liquid inlet tube and a pure fuel storage chamber for storing BH4- by means of fuel partion board with a certain height. Said fuel tank can only make the pure fuel BH4- be supplied into the interior of cell pile by means of discharge tube so as to raise its power generation performance.

The invention discloses a hard surface vacuum cleaner and a cleaning method thereof. The hard surface vacuum cleaner comprises a casing, a negative pressure source and a main water tank, wherein a nozzle on the casing and a suction pipe communicated with the nozzle are matched to form a water-gas mixed suction channel, and the water-gas mixed suction channel is connected with a centrifugal fan impeller to form a water-gas vortex separation structure; a water-gas mixture vortex deceleration cabin, a temporary solid dirt storage chamber and a temporary liquid dirt storage chamber which are communicated are further formed in accommodating space of the casing; the water-gas mixture vortex deceleration cabin and the temporary solid dirt storage chamber are formed between the negative pressure source and the nozzle, so that a sewage and dirt storage and separation channel is formed; and the temporary liquid dirt storage chamber is provided with an exhaust device communicated with the outside, and a gas separation channel is further formed, so that vacuum cleaning of a hard surface is realized. A structure required for water-gas separation is simple, and the water-gas separation effect is good.

The invention discloses a polyaluminium chloride water purification device and a working method. The polyaluminium chloride water purification device comprises a device main body, a rotating motor isfixedly mounted on the front side surface, close to a corner, of the device main body, and a driving shaft penetrating through the device main body is mounted at the output end of the rotating motor;and a driving gear fixedly sleeves the outer side face, close to the other end, of the driving shaft, a sawtooth belt is arranged on the side face, away from the rotating motor, of the device body andclose to the bottom, a driven gear is installed on the side face, close to the sawtooth belt, of the device main body and located at one corner, and a driven shaft is arranged in the driven gear in apenetrating mode. Powder and sewage can be fully mixed through double shafts, the time required for impurity flocculation is shortened, the sewage purification efficiency is improved, the situation that a pipeline is blocked due to the fact that polyaluminum chloride powder adheres to the pipe wall is avoided, a good anti-blocking effect is achieved, the powder is prevented from flying to the inner wall of the device, and the utilization rate of powder is improved.

The invention discloses a domestic sewage treatment system, and relates to the field of sewage treatment, the domestic sewage treatment system comprises a main body, the bottom end of one side in themain body is provided with a first rotating motor, an output end of the first rotating motor is connected with a first spiral plate, the top end of one side in the main body is provided with a secondrotating motor, the output end of the second rotating motor is connected with a second spiral plate, crushing cutters are fixed to the tail ends of the second spiral plate and the first spiral plate.The first motor drives the first stirring frame to rotate in the forward direction, the second rotating motor drives the second stirring frame to rotate in the reverse direction, a large number of bubbles are generated in a deoiling pool, the bubbles drive oil stains mixed in water to float upwards, centralized treatment on the oil stains is facilitated, the first rotating motor drives the first spiral plate to rotate in the forward direction, the second rotating motor drives a second spiral plate to rotate reversely, spiral discharging is achieved, two sets of cutters are matched with a crushing groove to complete crushing of some vegetable leaves, and pipeline blockage is prevented.

The nanometer fluid includes one kind of kind of liquid medium and carbon nanotubes with several positively charged high molecules connected to the surface dispersed in the liquid medium. The nanometer fluid with well dispersed carbon nanotubes has no need of adding surfactant and other stabilizer, and possesses excellent heat transfer performance. The present invention also provides the preparation process of the nanometer fluid.

The invention discloses an atomizing and spraying integrated dust remover, and relates to the technical field of dust removing. The atomizing and spraying integrated dust remover comprises a dust suction hood, wherein a dust suction opening is formed in the lower end of the dust suction hood; a plurality of anti-escape atomizing nozzles are fixedly formed in the inner wall of the lower end of thedust suction hood along the circumference; a plurality of dust capturing atomizing nozzles are fixedly arranged on the inner wall of the dust suction hood along the circumference; a first dust capturing hood is arranged above the dust suction hood; a second dust capturing hood is arranged above the first dust capturing hood; a plurality of second dust capturing rotary atomizing nozzles are fixedlyarranged on the inner wall of the second dust capturing hood; liquid collection components and first dust capturing rotary atomizing nozzles are arranged at the inner parts of the first dust capturing hood and the second dust capturing hood; a spraying dust capturing hood is arranged above the second dust capturing hood; spraying nozzles are arranged at the inner part of the spraying dust capturing hood; the top part of the spraying dust capturing hood is communicated with an inlet of an induced draught fan through an air duct. According to the atomizing and spraying integrated dust remover disclosed by the invention, dust can be captured through the combined action of atomizing and spraying, air containing steam and dust is prevented from directly entering a pipeline to cause pipeline blockage, the structure is simple, stable and firm, and a dust removing effect is good.

The invention discloses a system for emulsification of environment-friendly glue. The system comprises a mixing tank, an injecting device, a conveying pipeline and an emulsifying tank, wherein the conveying pipeline comprises an inner pipe and an outer pipe, the inner pipe is sleeved with the outer pipe and comprises a head part, a middle part and a tail part, and a plurality of through holes are evenly formed in the middle part; the outer pipe comprises an upper half round pipe, a lower half round pipe, an upper hoop and a lower hoop, the upper hoop is fixed on the upper half round pipe, the lower hoop is fixed on the lower half round pipe, the upper half round pipe is hinged to the lower half round pipe, the upper half round pipe and the lower half round pipe are locked by the upper hoop and the lower hoop, and the outer pipe is tightly attached to the inner pipe after the upper half round pipe and the lower half round pipe are locked. The system cannot cause pipe blockage after long-term use and prolongs the service life of emulsifying equipment.

The invention discloses a riverway sediment purification device. The riverway sediment purification device comprises a sediment suction pipe and a sediment suction device connected with the sediment suction pipe; a bearing is connected with the outer surface of an opening in the bottom end of the sediment suction pipe, the exterior of the bearing is further connected with the sediment suction device, the sediment suction device comprises a connecting pipe connected with the bearing, and the connecting pipe is in an outwards-expanding cone shape; a flow guide cover composed of a plurality of lotus-petal-shaped flow guide sheets is arranged at the open end of the connecting pipe in the circumferential direction, the flow guide sheets expand downwards and outwards from the open end of the connecting pipe, each flow guide sheet is provided with a short edge with one side in an inwards-concave arc shape and a long edge with one side in an outwards-convex arc shape, and the long edges and the short edges are connected at the bottom to form bottom tips; and flow guide convex edges are arranged on the inner sides of the flow guide sheets. According to the riverway sediment purification device, the sediment suction efficiency can be improved, pipeline blockage is avoided, and then the riverway sediment purification effect and efficiency are improved.

The invention belongs to the technical field of medical instruments, and particularly relates to a negative pressure gastric lavage device for pediatricians, which comprises a control mechanism, a connecting mechanism, a stomach tube and a driven mechanism; the control mechanism comprises a control box, an operation panel, a liquid storage tank and a dirty liquid tank; the control box is of a cavity type structure of which the top is fixedly connected with a lifting handle; a first groove is formed in one side of the control box; symmetrically designed positioning rings are fixedly connected to the side, away from the handle, of the first groove; threads are designed on the inner side of the positioning ring; the liquid storage tank and the dirty liquid tank are in threaded engagement connection with the positioning rings; a suction pump and a negative pressure pump are fixedly connected to the position, located above the first groove, of an inner cavity of the control box; the suctionpump and the negative pressure pump are communicated with the liquid storage tank and the dirty liquid tank through catheters. According to the invention, inner tubes and the outer tubes are arranged, the materials of the inner tube and the outer tube are limited, the outer tube with hard texture serves as a main body, so that the stomach tube can be extended to the stomach conveniently, the inner tube with soft texture serves as an infusion tube, and then the probability of tube blockage is reduced.

The invention relates to the technical field of heat treatment, and discloses a carburizing medium spraying device. The carburizing medium spraying device is used for forming a carburizing atmosphere in a carburizing furnace, and comprises a medium container for containing a carburizing medium; a supercharging device communicated with the medium container through a first conveying pipe; and a spraying device which is communicated with the supercharging device through a second conveying pipe and comprises a spraying pipe, wherein the spraying end of the spraying pipe is arranged in the carburizing furnace, a sputtering plate is arranged at the spraying end of the spraying pipe, a spraying opening is formed by the sputtering plate and the spraying end, and the carburizing medium sprayed out of the spraying end is splashed outwards from the spraying opening after impacting the sputtering plate. By means of the structure, the carburizing medium spraying device can promote the carburizing medium to be rapidly atomized and cracked in the carburizing furnace, pipeline blockage is effectively avoided, and it is guaranteed that the carburizing atmosphere is uniform.

The invention discloses an ultralow-temperature waste heat heating and recycling system, and relates to the technical field of energy conservation and emission reduction. The ultralow-temperature waste heat heating and recycling system comprises a processing tank and a treatment box, bases are fixedly connected to the bottom of the processing tank and the bottom of the treatment box, a tank cover is arranged at the top of the processing tank, a filtering mechanism is arranged at the top of the tank cover, a recycling mechanism and a purifying mechanism are arranged in the treatment box, the recycling mechanism comprises a water storage tank, the water storage tank is fixedly installed at the bottom of an inner cavity of the processing tank, the outer surface of the processing tank communicates with a liquid heat pipe, and one end of the liquid heat pipe penetrates through the processing tank and communicates with the water storage tank. According to the ultralow-temperature waste heat heating and recycling system, the recycling mechanism is arranged, the water storage tank is used for collecting heat, circulating heat utilization is conducted through a heat outlet pipe and a heat return pipe, and heat transmission of a smoke heat pipe, the liquid heat pipe and a draught fan is matched, so that energy recycling of heat generated by equipment is achieved, and direct waste of energy is avoided.

According to the technical scheme, the working solution dehydration device for hydrogen peroxide production comprises a tower body, a fixing plate is fixedly connected to the top in the tower body, a blockage clearing mechanism is arranged in the tower body, the blockage clearing mechanism comprises a worm, a transmission rod, a worm wheel and two supporting vertical plates, one end of the worm is fixedly connected with a first connecting rod, and the other end of the worm is fixedly connected with a second connecting rod; the working solution dehydration device for hydrogen peroxide production has the beneficial effects that by arranging the blockage clearing mechanism, when materials flow in a pipeline for a long time due to the influence of external factors, the blockage clearing mechanism can clear the blockage of the materials, and the blockage clearing mechanism can clear the blockage of the materials; a user can drive the multiple liquid pipes to rotate by rotating the hand wheel, and simultaneously drive the multiple dredging rods and the multiple spines to conduct up-and-down reciprocating dredging on liquid in the liquid pipes, pipeline blockage is avoided, basically no energy is consumed, and the problem that steam is wasted in the existing mode that steam is adopted to heat the outer wall of a pipeline to conduct blockage clearing is effectively solved.