195results about How to "Achieve clogging" patented technology

The invention relates to the ventilation system field, in particular to an efficient automatic dust-removing and intelligent ventilation system and an automatic dust-removing method. The system comprises an intelligent energy-saving ventilation system housing component and a fan, wherein the intelligent energy-saving ventilation system housing component comprises a dual duct, a dust-discharging duct, a throttle actuating mechanism, a dust screen, a temperature and humidity sensor and a distributed pressure sensor, wherein the temperature and humidity sensor and the distributed pressure sensor are connected with a control system, and the control system drives the throttle actuating mechanism to realize time-sharing and smooth transition of the dual duct and the dust-discharging duct. The beneficial effects of the invention are as follows: the fans of the air feeder unit can be used for several purposes such as air supply and dust removing, thus reducing the equipment cost; the self-cleaning of the filtering screen can be realized, thus prolonging the service life of the filtering screen, reducing replacement frequency and lowering maintenance cost; and by turning on/off the automatic dust-removing and intelligent ventilation system, the normal operation of the devices in an equipment room can be ensured.

The invention discloses an ultrasonic atomization assisted electrospinning technique and belongs to the field of preparation and applications of nano materials. According to the technique, prepared graphene, graphene oxide, carbon nano tubes and other nanoparticles are dispersed in a storage tank of an ultrasonic atomizer, atomization spraying of the nanoparticles is realized, and the problem of nanoparticle blocking caused with a conventional mixing method is solved. Ultrasonic atomization and electrospinning techniques are combined for use, a prepared nanoparticle polymer composite film has uniformly mixed nanoparticles, and agglomeration is not easily caused. The polymer fiber film prepared with the technique has high separation efficiency, good strength and excellent water resistance, and the physical and chemical properties of the composite film material are improved. Compared with a conventional electrospinning technique, graphene and the carbon nano tubes can be mixed in any ratio, the conventional blocking problem of an electrospinning sprayer is solved, and the technique has important application prospect in environment treatment and electrode material preparation.

The invention relates to the field of manufacturing and design of high-voltage switches and discloses an arc extinguish chamber structure for lifting an arc voltage. The structure comprises a fixed piston and a pull rod moving in an inner hole of the piston; a relative position of an air current channel is designed to realize staged blocking and opening; and simultaneously the structure has an extended moving arc contact surface, so that the variation range of an arc length is enlarged. The structure can increase the amplitude and jump of the arc voltage and fulfills the aim of enhancing the breaking direct current, the volume and the sensitive small-current breaking capacity of a circuit breaker.

The invention belongs to a coupling device and a coupling technology for in situ extraction of succinic acid by an expanded bed and fermentation and separation of the succinic acid, in particular relates to a technology for producing the succinic acid by the fermentation method, a technology for separating the succinic acid by the expanded bed and a fermentation and separation coupling process. The device is to couple a chromatography column of the expanded bed and a succinic acid bioreactor, so as to extract the succinic acid in situ. The device utilizes the characteristic of the chromatography column of the expanded bed that microbial zymotic liquid provided with solid materials is allowed to directly enter the chromatography column, avoids the blockage problem of a chromatography column of a fixed bed due to direct coupling of the fixed bed and the bioreactor in the prior art, saves an additional membrane separator between the bioreactor and the chromatography column of the expanded bed, realizes direct coupling of the chromatography column of the expanded bed and the bioreactor, and performs in situ extraction of target substances and does not cause blockage of the chromatography column of the expanded bed. Moreover, a coupling system for in situ extraction of the succinic acid by the expanded bed and the fermentation and the separation of the succinic acid is established to meet the requirements of sterilization and pollution-free operation.

The invention provides an air conditioner and an air conditioner throttling device blockage detection method and system. The air conditioner comprises a compressor, an indoor unit, an indoor unit evaporator and a counter. The detection method comprises the steps of (1) acquiring the state of the compressor after the air conditioner is powered on and started up; (2) judging whether the continuous running time of the compressor reaches the first preset time t1 or not when the compressor is in a running state; (3) if yes, further judging whether the running frequency of the compressor within the first preset time t1 is greater than the preset frequency f1; (3) if yes, acquiring the running current I1 of the air conditioner and/or the air intake temperature T1 of the indoor unit and the temperature T2 of the indoor unit evaporator at the intervals of the second preset time t2; and (4) judging whether a throttling device of the air conditioner is blocked or not according to the running current I1 of the air conditioner and/or the air intake temperature T1 of the indoor unit and the temperature T2 of the indoor unit evaporator. By means of the method, whether the throttling device of the air conditioner is blocked or not can be detected, and the detection method is simple and reliable.

The invention provides a detection device and a detection method for blocking of a fused deposition type 3D printing machine spray head. The detection method comprises the steps that correlation signals with preset time intervals, generated through a first photoelectric correlation sensor and a second photoelectric correlation sensor are sent to a 3D printing machine; if extrusion of an extruder is normal, the spray head is not blocked, fan blades rotate ceaselessly, the photoelectric correlation sensors repeatedly generate the correlation signals with preset time intervals, the correlation signals are sent to the 3D printing machine, and the 3D printing machine performs normal printing; and if the spray head is blocked, the extruder cannot extrude 3D printing supplies, the 3D printing supplies cannot move, a worm cannot be driven to rotate, the fan blades stop rotating, the photoelectric correlation sensors continuously receive signals or cannot receive signals, if the photoelectric correlation sensors continuously receive signals or cannot receive signals after preset time, an alarm is given, the 3D printing machine is temporarily stopped, and the whether the spray head is blocked or not is detected.

The invention discloses a continuously-circulating screen vibrating sieve. The continuously-circulating screen vibrating sieve is mainly composed of a screen circulation system, a screen excitation system and a screen circulation driving system. The screen circulation system is formed by assembling screen trays, a chain and chain wheels. The screen trays are hinged together through connecting shafts. The screen excitation system is composed of funnels, excitation motors and supporting springs, wherein the funnels are provided with groove-shaped tracks. The funnels are arranged below the circulating screen trays on the screen circulation system. Rollers supporting the circulating screen trays roll in the groove-shaped tracks. The screen circulation driving system is composed of a chain transmission motor and a speed reducer. The chain transmission motor transmits power to the driving chain wheel through the speed reducer, and the driving chain wheel drives the whole screen circulation system to move. The continuously-circulating screen vibrating sieve is simple in structure and convenient to manufacture; the screen can circulate continuously, the self-cleaning capacity is high, and the defects that the self-cleaning capacity of an existing drilling fluid vibrating screen is poor, screen blocking and screen burning are likely to occur, and the solid-phase liquid content after separation is high can be effectively overcome.

The invention discloses a washing machine self-cleaning circulating filtering system and a self-cleaning method. The system comprises a water storage tank communicated with a washing machine, a filter module disposed in the water storage tank and processing water and a siphon pipeline communicated with the water storage tank, wherein the internal space of the water storage tank is divided into two cavities; the two cavities are communicated via the filter module; the two cavities are a first cavity to filter drainage water in a washing machine water accommodating barrel, and a second cavity discharging the filtered water to the water accommodating barrel; one end of the siphon pipeline is communicated with the first cavity and the other end lifts, then passes through a washing machine body and then descends; a highest point of the siphon pipeline is higher than a height between a water outlet position of the water storage tank and a circulating water inlet position of the water accommodating barrel; when the filter module is blocked, large absorption force is formed in the siphon pipeline due to the siphon principle, so block can be automatically cleaned and back wash can be formed; after cleaning is finished, the siphon is automatically destroyed and circulating water is continued; and the washing machine self-cleaning circulating filtering system is simply structured, requires low cost, and hand-operated block cleaning work via circulating water program stop can be avoided.

The invention discloses a device for filtering livestock and poultry breeding wastewater and recovering filter materials. The device is sequentially provided with a water distributing feeding region, a self-stirring and filtering region and a water collecting and discharging region from top to bottom. A drainage groove, a U-shaped water distributing groove, a triangular rinsing weir, a feeding hole and a feeding pipe are arranged in the water distributing feeding region; a straw filter material and a self-stirring device are arranged in the self-stirring and filtering region; and an inclined screen, a horizontal screen, an inclined drainage plate, a horizontal drainage plate, a water collecting chamber and a drain pipe are arranged in the water collecting and discharging region. The device disclosed by the invention integrates wastewater filtration and resource recycling, and is simple in structure and small in occupied area; by adopting a weir-type water distributing system, the device can be prevented from being blocked by solid matters; by adopting the self-stirring system, the filter materials are uniformly distributed and; the filter materials in the device are recovered, so that a biomass resource is fully utilized.

The invention provides a super-hydrophobic pre-filled gravel sand control pipe and a preparation method thereof. The super-hydrophobic pre-filled gravel sand control pipe comprises a base pipe, a super-hydrophobic sand control pipe shell and a super-hydrophobic gravel layer; the base pipe is sleeved with the super-hydrophobic sand control pipe shell, and the super-hydrophobic gravel layer is filled between the base pipe and the super-hydrophobic sand control pipe shell; and the surface of the super-hydrophobic sand control pipe shell is provided with a first super-hydrophobic coating, the super-hydrophobic gravel layer is collected by super-hydrophobic gravel, and the surfaces of the super-hydrophobic gravel are provided with second super-hydrophobic coatings. The super-hydrophobic pre-filled gravel sand control pipe can not only realize the self-cleaning function of the sand blocking medium, but also can achieve the purpose of controlling water and increasing oil in high water cut well and prolong the stable production period of oil wells.

The invention relates to a purification tower having an anti-freezing function and used for acid mist treatment. The purification tower comprises a main body, an air inlet pipe, an air outlet pipe, afiller layer, a spraying device, a circulating device, a filtering mechanism and an anti-freezing mechanism. The filtering mechanism comprises a filter screen, a driving assembly, a transmission assembly, two connecting assemblies and two scraping plates; the anti-freezing mechanism comprises a rotating shaft, two first bearings and a plurality of stirring blades. According to the purification tower having the anti-freezing function and used for acid mist treatment, the impurity removal function is achieved through the filtering mechanism, the blockage probability of the spraying device is reduced, the practicability of equipment is improved, the stirring function is achieved through the stirring mechanism, the flowability of absorption liquid is improved, and the probability that the absorption liquid is frozen is reduced.

The invention relates to an antifouling dry-powdered emulsion paint. Global hardness is provided by the utilization of network-like mineral formed by white cement hydration; an ash-calcium modifying agent is added to improve properties of ash-calcium, and ash-calcium is carbonized to generate netted calcium carbonate which interpenetrates to reinforce middle and late hardness; supported by VAE redispersible latex powder, the system's flexibility and elasticity are improved; by the addition of a composite water reduction material, it is guaranteed that various materials are uniformly dispersed in the system, and micropore structure of the system is improved; by the addition of talcum powder and kaolin, construction performance is improved; by the addition of hydroxyethyl cellulose ether, the system's denseness and water retention capacity are increased; by the introduction of superfine nano-silica, compactness of the system is improved; by the addition of a water repellent, the coating is endowed with overall waterproofing property; and polyaluminum chloride is further added to react with calcium hydroxide in the system so as to generate expansile aluminium hydroxide and hydrated chloroaluminate. Thus, the coating becomes a compact integral body and has strong antifouling performance and good air permeability.

The invention discloses a multifunctional changeover valve. The multifunctional changeover valve comprises an automatic ball-point pen type pressing mechanism, a sealing guide rod, a first spring and a valve element body, wherein the automatic ball-point pen type pressing mechanism is triggered, and the first spring applies return force opposite to pressing force to the sealing guide rod, so that the sealing guide rod abuts against the pressing mechanism all the time; the pressing mechanism has high stroke and low stroke, so that the sealing guide rod performs up and down reciprocating motion along the axial position of the valve element body, and therefore, the first flow-guide hole or a second flow-guide hole is selectively plugged by a plug on the sealing guide rod, and a water inlet and a first water outlet or a second water outlet are opened/closed; and an included angle between the valve element body and a valve element seat body is rotated, so that an over-flow area of a flow regulating hole is changed, and therefore, the flow switching purpose is realized.

The invention relates to a biological enzyme composite blocking remover and a preparation method thereof, which belong to the technical field of oil field yield increase renovation. The blocking remover comprises the following components by mass: 0.1-0.5% of biological enzyme, 3-5% of a biological surfactant, 5-10% of a biological enzyme stabilizer, and the balance of water; the biological enzyme comprises at least one of xylanase, lipase, cellulase, mannase, protein complex enzyme, amylase and xanthan gum lyase; the biological surfactant is prepared from at least one of the following components: the biological surfactant is mainly prepared from rhamnolipid, sophorolipid and N-acetylgalactosamine; and the biological enzyme stabilizer comprises at least one of the following components: disodium ethylene diamine tetraacetate, citric acid and triethanolamine. The biological enzyme composite blocking remover provided by the invention can solve the problems of permeability reduction and the like caused by low-permeability and medium-low-permeability reservoir reconstruction residual gum and organic matter (wax, asphaltene and the like) blocking in the later development period.

The invention discloses an automatic dedusting method and system for a dust removal pipeline. The automatic dedusting method comprises the steps that dust deposition weight data of each detection point in the dust removal pipeline are obtained; the dust deposition thickness of each detection point is calculated according to the dust deposition weight data; the pipeline blockage degree P and the dust deposition rate V of each detection point are calculated according to the dust deposition thickness, and the average dust deposition rate V<avg> of all the detection points is calculated according to the dust deposition rates V; when the pipeline blockage degree P of a certain detection point reaches the set value, dedusting is conducted by increasing the air door open degree of a pipeline body where the detection point is located; and when the average dust deposition rate V<avg> reaches the set value, the dust deposition rate is decreased by increasing the air door open degree of a main pipeline body. According to the automatic dedusting method and system for the dust removal pipeline, energy consumption of a dust removal system can be significantly reduced; pipeline abrasion is effectively relieved; long-term stable operation of the dust removal system is ensured; and in addition, the method adopts an automatic feedback closed-loop control mode, so that manual operation is not needed, and the operation and maintenance workload is small.

The invention provides a melting device for metal casting based on liquid level equal altitude, and relates to the technical field of metal castings. The melting device for metal casting based on theliquid level equal altitude comprises a furnace body, and a crucible is fixedly installed in the furnace body; a feeding port is formed between the furnace body and the right end of the crucible; a coil is wound in the furnace body; a first lifting rod is connected in the crucible in a sliding manner; a pipeline is formed on the left side of the crucible; and a second lifting rod is connected in the pipeline in a sliding manner. Due to the melting device for metal casting based on liquid level equal altitude, the degree of melting can be known about in real time, metal liquid is discharged intime after complete melting, and therefore energy waste caused by overtime smelting is avoided, and the phenomenon that the heat loss is caused due to the fact that a furnace cover needs to be openedis avoided; and energy saving is better and efficiency is higher, it is not needed to take the crucible when the metal liquid is collected, the smelting process can be continuously performed easily, and more time and labor are saved.

The invention provides an electrically controlled water discharging device. The electrically controlled water discharging device comprises: a housing installed at the bottom of a water channel body and a solenoid valve; a lifting mechanism is arranged inside the housing; one end of the solenoid valve is connected with the lifting mechanism through a zipper, and the other end of the solenoid valveis electrically connected with a control mechanism, wherein the control mechanism is mounted on the water channel body. According to the electrically controlled water discharging device, the control mechanism sends an instruction to actuate the solenoid valve, lifting and lowering of the lifting mechanism are achieved, so as to achieve conduction and blockage between the water channel body and a sewage pipeline, so that a drainage effect can be achieved when a user's hand is not entering the water body, and the operation is convenient and reliable; in addition, the solenoid valve is independent of the housing, so that the solenoid valve is in a dry environment and the reliability of the solenoid valve is improved.