36results about How to "Avoid Flow Dead Zones" patented technology

The invention relates to a drinking water purifying device combining photocatalysis and inorganic membrane filtration technology, comprising an active carbon filtration assembly, an inorganic membrane filtration assembly and a photocatalysis membrane assembly. Water flows into the active carbon filtration assembly and then passes through the inorganic membrane filtration assembly, and finally, purified drinking water flows out of the photocatalysis membrane assembly. The inorganic membrane filtration assembly and the photocatalysis membrane assembly are both mounted vertically to prevent sediment from polluting membranes and avoiding dead flow areas; the active carbon can be soaked in edible alcohol for being utilized repeatedly; the inorganic membrane of the inorganic membrane filtration assembly has high mechanical strength and can resist corrosion; and all assemblies of the device have long service lives and have no needs of frequent cleaning and replacement. The invention adopts the photocatalysis membrane action for sterilization, has good effect, can purify water in depth, loads phtocatalyst on stainless steel or the inner wall of a glass tube and adopts an ultraviolet source to inspire the photocatalysis membrane to react so as to achieve the purpose of sterilization and trace organic matter degradation, have no problems of catalyst separation, and can not cause second water pollution.

The invention discloses an external guide single shell pass support-free crosscharge curve surface tube energy-saving heat exchanger, which comprises a shell, a first tube plate, a second tube plate, a first close cover, a second close cover, a strapping steel strip, a heat exchange tube bundle, a first external guide barrel and a second external guide barrel. Shells in a first annular inner cavity and a second annular inner cavity are uniformly provided with a plurality of through holes; heat exchange tubes in the heat exchange tube bundle are crosscharge curve surface tubes which are formed by flattening and twisting circular tubes serving as parent tubes; the cross section of the crosscharge curve surface tubes is oval; and the crosscharge curve surface tubes are contacted in turn and form the tube bundle by means of the self support of contact points of the crosscharge curve surface tubes. The shell pass fluid can uniformly enter a shell pass, and non-flowing regions are reduced. The heat exchange tube bundle consists of the support-free crosscharge curve surface tubes, so turbulence degree of the shell pass fluid is improved and the heat transfer in the tubes is enhanced; and the shell pass is not provided with baffle plates, so the non-flowing regions between the tubes are eliminated, and dirt deposition and corrosion of a tube pass are reduced.

The invention relates to a jet spray hybrid bioreactor, comprising a reducer pipe, a ledger plate, a jet spray muzzle, and a compressed air ingress pipe, which is characterized in that the reducer pipe is specially designed to have a dispersion cavity, a hybrid cavity, and a jet spray cavity in sequence from the top down. A plurality of liquid reactant suction inlets are provided at the intersection of the hybrid cavity and the jet spray cavity and distributed evenly and circumferentially. The intersection angle between the axial lead of a hole and the axial lead of the reducer pipe is 45-90 degrees. A plurality of liquid reactant suction inlets are provided on the ledger plate. The ledger plate and the reducer pipe, and the ledger plate and top end of the jet spray muzzle are connected respectively by screw threads. The outlet of the jet spray muzzle is extended deeply into the reducer pipe. The lower end of the jet spray muzzle is connected with the compressed air ingress pipe. The invention has the advantages that the invention makes use of the pumping action of high speed airflow to automatically absorb in liquid reactants, thus realizing multiple-angle stirring, high efficiency and energy saving, without dead flow zone, and the structure is simple and the operation control is convenient.

The invention discloses an immersed liquid cooling battery pack. The immersed liquid cooling battery pack comprises a shell, at least one battery pack is arranged in the shell, and each battery pack comprises a plurality of battery cells arranged at intervals in the first direction; a liquid inlet cavity and a liquid outlet cavity are formed in the two sides of the battery pack in the second direction, and the second direction is perpendicular to the first direction; a liquid inlet is formed in one of the two ends, in the first direction, of the liquid inlet cavity, and a liquid outlet is formed in the end, different from the liquid inlet, of the two ends, in the first direction, of the liquid outlet cavity, so that cooling liquid enters the liquid inlet cavity from the liquid inlet, flowsinto the liquid outlet cavity after flowing through the battery pack and flows out from the liquid outlet; and a flow equalizing plate is arranged between the liquid inlet cavity and the battery pack, the flow equalizing plate is arranged in the first direction, a liquid through hole is formed in the flow equalizing plate, and a plurality of flow deflectors which are arranged at intervals in thesecond direction are arranged at the liquid through hole. The immersed liquid cooling battery pack provided by the invention is high in heating / cooling efficiency, good in uniformity and simple in structure.

The invention discloses a combined type tuyere small sleeve which comprises a central sleeve, an internal sleeve, a first sleeve, a second sleeve and a third sleeve, wherein the central sleeve is fixedly socketed with the internal sleeve to form an oxy-coal medium channel; the gap between the first sleeve and the central sleeve forms a cooling water inflow channel, the gap between the second sleeve and the first sleeve forms a gas medium channel, the gap between the third sleeve and the second sleeve forms a cooling water backflow channel, a front cap and a rear cap which are in an integratedstructure are fixedly connected with one ends far away from a water inflow port and a water backflow port of the cooling water inflow channel and the cooling water backflow channel, and the cooling water inflow channel and the cooling water backflow channel are communicated through the front cap and the rear cap, thus forming a cooling water circulating channel; and the front cap is provided withan oxy-coal medium outlet and a gas medium outlet. The invention has the advantages of simple structure, good cooling effect, high reliability and safety, and long service life.

The invention relates to a novel baffle plate. The novel baffle plate comprises a baffle plate, round holes, a flow guide structure and an anti-corrosive coating, wherein the baffle plate is a segment-shaped baffle and is made of stainless steel; round holes are uniformly formed in the surface of the baffle plate; an opening area of each circular hole is 60%-90% of an overall area; each round hole is a through hole with a hole diameter of 8mm-20mm; the flow guide structure is in an arc structure, and is welded on the round end face of the baffle plate so as to prevent a right-angle transition area from being formed at the welding position between the baffle plate and a condenser, and remove a flow dead area formed at the same position; the anti-corrosive coating is located at the outer end face of the baffle plate, so as to prevent corrosion on the baffle plate in the condenser, caused by an acidic solution or an alkaline solution. According to the baffle plate mounted in the condenser, when passing through the baffle plate mounted in the condenser, the fluid in the condenser flows through the round hole. The hole diameter is reduced and the flow-through speed of the liquid is accelerated, so that the flowing liquid is avoided in the condenser. The fluid flows with a certain radian in a transition manner through the flow guide structure of the baffle plate, so that the flowing dead area is overcome. The novel baffle plate provided by the invention has the advantages of simple structure and convenience for manufacturing.

A reverse flow type spiral baffle plate U-shaped pipe bundle heat exchanger is composed of a U-shaped pipe bundle core body, a shell and a water chamber. The U-shaped pipe bundle core body is composed of a U-shaped pipe bundle, spiral baffle plate assemblies, pipe plates, pull rod sleeve assemblies and longitudinal partition plates. The upper cylindrical area and the lower cylindrical area of each spiral baffle plate assembly are each composed of a flat plate round-notch-shaped baffle plate and an arc end strip-shaped baffle plate. Each arc end strip-shaped baffle plate is composed of an inclined section, a left bent flat section and a right bent flat section. Every two corresponding baffle plates are provided with an overlapped area of a row of pipes. The structural limitation that ordinary spiral baffle plates can hardly be arranged in semi-cylindrical spaces and numerous defects of arch baffle plate heat exchangers can be overcome, the purpose of arranging spiral baffle plate passageways in a semi-cylindrical space to obtain the reverse flow type U-shaped pipe bundle heat exchanger is achieved, and the reverse flow type spiral baffle plate U-shaped pipe bundle heat exchanger has the advantages of being high in heat conduction coefficient, low in flowing resistance, and the like.

The invention relates to a reforming reactor and application thereof. Mixed hydrogen is subjected to subsection, lifted hydrogen and stripped hydrogen are respectively introduced in different reactors, the molar ratio of H2 to HC in the reforming reactor is reasonably adjusted, and therefore compared with the prior art, the yield of aromatic hydrocarbon and hydrogen is greatly increased. Comparedwith the prior art, the reforming reactor adopts a radial reactor structure with an inlet formed in the side and an outlet formed in the top, the height of the reactor can be effectively reduced, theproblem that the larger top space of the reactor is wasted is solved, and a center cylinder and a fanshaped cylinder can be conveniently maintained; a catalyst collecting hopper is arranged at the bottom of the reforming reactor, hydrogen is adopted for steam stripping, through steam stripping, hydrocarbon components carried by a catalyst can be obtained, the rising temperature of the catalyst isalso reduced, and the reforming reactor is beneficial for safe operation, subsequent equipment and material selection for pipelines.

The invention discloses a graded manifold micro-channel heat dissipation device. The graded manifold micro-channel heat dissipation device mainly comprises a first-stage micro-channel, a second-stage micro-channel, a third-stage micro-channel and a bottom plate part. The four layers of channels are packaged through the bonding technology, working medium inlets and working medium outlets are located in the top, and the number of the micro-channels and the number of the manifold channels can be increased according to the heat exchange area. A heat exchange working medium flows into the third-stage micro-channel through the first-stage micro-channel and the second-stage micro-channel, is split into the last eight inlets from the first two inlets and flows to the surface of the analog chip, and the temperature distribution uniformity of the surface of the analog chip is improved through uniform distribution of the working medium. And the working medium after heat exchange is converged into the first-stage micro-channels through the third-stage micro-channels and the second-stage micro-channels, and finally is converged to an outlet in the middle through the two first-stage micro-channels to flow out. The flow channel is segmented into a plurality of micro-channel units, the flow length is shortened, so that the pressure drop is reduced, a thermal boundary layer is difficult to develop in the micro-channel, and the heat exchange coefficient is increased and the total thermal resistance is reduced. The device has the advantages of being small in occupied area, low in power consumption and high in heat dissipation capacity, and can be used for meeting the heat dissipation requirement exceeding the heat flux density.

The invention provides a mixer for a U-shaped tail gas after-treatment device and the U-shaped tail gas after-treatment device comprising the mixer. The heating path of air flow to urea is prolonged, the heat utilization efficiency of tail gas is improved, the urea fully absorbs heat and exerts the heat, the risk of urea crystallization is effectively reduced, the mixer comprises a mixer shell, the mixer shell comprises a gas inlet connected to a DPF unit and a gas outlet connected to an SCR unit, a mixing cavity is formed in the mixer shell, the mixer is characterized in that a flow guide plate is arranged at the position, close to the gas inlet, in the mixer shell, a gas mixing channel is formed in the mixing cavity, a urea nozzle is arranged on the gas mixing channel, and gas entering from the gas inlet is guided by the flow guide plate to enter the gas mixing channel, and is discharged from the gas outlet after flowing through the gas mixing channel.

The invention discloses a scraper type anti-blocking discharging bin which is mainly characterized by being provided with a discharging bin body, wherein the discharging bin body is divided into an upper part, a middle part and a lower part; the upper part is a fixed bin segment, and an upper opening of the upper part is connected with a silo; the middle part is a rotating body and is an easily-plugging part of the discharging bin; the lower part is also a fixed bin segment, and a lower opening of the lower part is connected with a feeder inlet spile; the periphery of the rotating body is fixedly provided with gears, a motor drives the rotating body to do rotary motion through a speed reducer and the gears at the periphery of the rotating body, and the inner wall of the rotating body is fixedly provided with scrapers arranged from top to bottom along the wall of the discharging bin; the upper parts of the scrapers cling to the inner wall of the fixed bin segment at the upper part of the discharging bin, and the lower parts of the scrapers cling to the inner wall of the fixed bin segment at the lower part of the discharging bin. Due to the adoption of the technical scheme, compared with the prior art, the scraper type anti-blocking discharging bin has the advantages of simple structure, convenience in installation, automation in control, reliability in running, low maintenance and easiness in popularization.

The invention provides a baffle plate and a shell-and-tube heat exchanger. The baffle plate comprises a body provided with a pipe hole and is installed in a cylindrical shell of the heat exchanger. One side of the edge face of the body is an installing face. The installing face is attached to the inner wall of the shell. The other side of the edge face of the body is a circulation notch face. Thecirculation notch face and the inner wall of the shell form a circulation notch in a surrounding mode, and a medium passes through the circulation notch. The body is made of foam metal material. The turbulence degree of flowing can be improved effectively, the influence caused by a common baffle plate on flowing form change is lowered, then the flowing dead zone of a traditional shell-and-tube heat exchanger is avoided effectively, and the effects that heat exchange efficiency of the heat exchanger is promoted effectively and pressure drop is lowered are achieved.

The invention provides a spiral turbulent-flow blade based emitting device barrel cooling water jacket. The spiral turbulent-flow blade based emitting device barrel cooling water jacket comprises a water jacket body, a water inlet and a water outlet, wherein the water jacket body is barrel-shaped, and sleeves a emitting device barrel; the water inlet and the water outlet are separately positionedin upper and lower wall surfaces of the two ends of the water jacket body; and the inner wall of the water jacket body is equipped with a spiral water conveying blade in the peripheral direction fromthe front end to the rear. The spiral turbulent-flow blade based emitting device barrel cooling water jacket can perform efficient cooling on the barrel in a continuous shooting process of the emitting device.

The invention discloses an exhaust mixing device and an engine. The exhaust gas mixing device comprises a turbulent flow mixer and a rectifying device, wherein the turbulent flow mixer is arranged inthe exhaust pipe and located on an upstream of an NOx sensor, the rectifying device is arranged in the exhaust pipe and located below the NOx sensor, and the rectifying device is used for lifting exhaust gas flow in the direction where the NOx sensor is located. The exhaust mixing device is advantaged in that the turbulent flow mixer and the rectifying device are matched for use, so distribution uniformity of nitric oxide in the exhaust gas can be improved, a gas flowing dead zone is avoided, the NOx sensor can accurately monitor the flowing gas, a concentration level of average nitric oxide of the gas in the whole exhaust pipe is obtained, meanwhile, the rectifying device enables a narrow-diameter structure to be formed in the exhaust pipe, the exhaust pipe can have a large expansion ratio, and the silencing capacity for low-frequency noise is improved.

The utility model relates to a mold for extrusion formation of an equal-thickness in-plane bent plate. The mold is connected and mounted with an extruder, and comprises an extrusion barrel liner, an adjustment mold and a forming mold which are connected in sequence, wherein an inner cavity arranged in a running-through manner along the extrusion direction of an extrusion rod is arranged in the mold; the inner cavity comprises a rectangular cavity located in the extrusion barrel liner and used for enabling the extrusion rod to push a blank, a forming hole located in the forming mold and used for extruding the blank, pushed by the extrusion rod from the inner cavity of the mold, into a flat plate, and a specially-shaped cavity located in the adjustment mold and used for cooperating the extrusion action of the extrusion rod to change and adjust the shape of the blank to enable the blank extruded out from the forming hole to become the required equal-thickness in-plane bent plate. The moldcan extrude equal-thickness in-plane bent plates with different curvatures; furthermore, the thickness size of the in-plane bent plate can be guaranteed; no phenomena of thinning of an outer ring, easy wrinkling of an inner ring and the like occur; in addition, the equal-thickness in-plane bent plate has no counter-acting force opposite to a bending direction of the equal-thickness in-plane bentplate, so that springback opposite to the bending direction cannot occur.

The invention relates to a packed extraction tower, application thereof and a residual oil solvent deasphalting method. The packed extraction tower is composed of a shell, a raw material inlet locatedat the middle part of the shell, an extraction solvent inlet located at the lower part of the shell, a tower top extraction phase outlet, a tower bottom raffinate phase outlet and extraction structured packing; the extraction structured packing fills the shell of the extraction tower; and the extraction structured packing is grid type packing. The packed extraction tower provided by the inventionis suitable for a heavy oil solvent deasphalting process, and is high in separation efficiency and large in treatment capacity.

The invention discloses a smoke heating traditional Chinese medicine extraction tank. The smoke heating traditional Chinese medicine extraction tank comprises a feeding opening, a liquid inlet, a washing opening, support feet and a tank body. The tank body is provided with a heat preservation layer for heat insulation; one side of the tank body is provided with an air cylinder linkage device for controlling bottom residue discharging; the air cylinder linkage device is hinged to the bottom of a sealing cover; the bottom of the tank body is provided with a residue outlet; an air cylinder drivesan opening shaft to enable a residue outlet door of the residue outlet to be open or close and to lock the door; a smoke inlet is formed in one side of the tank body; a smoke outlet is formed in theother side of the tank body; a spiral piece channel for smoke flowing is formed between the inner wall and the outer wall of the tank body; smoke flows in along the tangential direction of a cylinderwall; the lower end of a spiral piece enters the interlayer along the tangential direction of the inlet and the cylinder wall; the bottom is provided with a disc for heating; spiral sheets are arranged in the disc; the spiral sheets are arranged in a mode of combining clockwise flowing-in and anticlockwise flowing-out; the spiral sheets are inserted into the disc in an intersecting mode; the discis placed in a sealing cover structure connected with an upper-layer cylinder body; and the lower disc is connected with the tank body through a pneumatic locking structure.

The invention provides a collecting device for instantaneously-released high-temperature high-pressure high-humidity waste gas, and belongs to the field of waste gas treatment. The collecting device comprises a gas collecting pipeline, an automatic separating unit and a plurality of buffer thermal exchange units; one end of the gas collecting pipeline communicates with the outer part, and the other end of the gas collecting pipeline is connected to an inlet of the automatic separating unit; one outlet of the automatic separating unit is connected to inlets of the buffer thermal exchange units; the plurality of the buffer thermal exchange units are arranged in a communication mode; and each buffer thermal exchange unit communicates with an external gas treatment device through a gas exhaust pipeline. The collecting device belongs to a modularized design, is simple in structure, and can be expanded according to practical needs, so that collection of different-displacement waste gas is realized.

The invention discloses a novel devolatilization device which comprises a vertical cylinder, an upper end socket and a lower end socket are arranged at the upper end and the lower end of the cylinder respectively, at least one pair of feed ports are connected to the upper end socket, at least one pair of discharge ports are connected to the lower end socket, and a devolatilization distributor hung below the upper end socket is arranged in the cylinder. The devolatilization distributor is a closed outer ring formed by connecting a plurality of devolatilization distribution pipes with the same diameter end to end, a middle connecting pipe communicated with an outer ring pipeline is arranged in an inner ring of the outer ring, flow distribution holes are formed in the lower semicircular pipe wall of each devolatilization distribution pipe, the flow distribution holes are arranged in a triangular mode, the hole diameter ranges from 2 mm to 6 mm, and the devolatilization distributor is provided with an open hole opposite to a feeding port. And the feeding hole is welded and fixed with the devolatilization distributor through the opening and is communicated with the devolatilization distributor through a pipeline By optimizing the inlet and outlet structures of the devolatilization device, optimizing the external heating of the equipment, and optimizing the devolatilization distributor and the flow distribution holes, the devolatilization separation efficiency is improved, and the product quality is further improved.