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51results about How to "Change flow path" patented technology

Switching control valve for state of aircraft cargo compartment fire extinguishing system

The invention relates to a switching control valve for the state of an aircraft cargo compartment fire extinguishing system, and the switching control valve is particularly suitable for serving as a diversion element of extinguishing agents in an aircraft cargo compartment fire extinguishing pipeline. A flow control device comprises a valve body (1), a high-speed inlet (2) and a low-speed inlet (3), wherein a sliding type valve element (4), a valve cavity (5), a valve base (6) and an elastic force control switch (7) are arranged in the valve body, a slider (8) is arranged on the periphery of the sliding type valve element (4), a conical-angle face (9) is arranged at one end, close to the low-speed inlet (3), of the valve base (6), and a drying filtering cavity (10) and a throttling cavity (11) are formed in the valve cavity (5). The switching control valve meets different flow speed requirements and different requirements for extinguishing agents when fire happens to an aircraft, the using number of pipelines in the aircraft is reduced, the stability and the high efficiency of the fire extinguishing system of the aircraft are guaranteed, water, solid particles and other impurities in the extinguishing agents can be removed, and icing and blocking are avoided.
Owner:UNIV OF SCI & TECH OF CHINA

Cyclone separator with gradually enlarged inlet, flow guide plate and dustproof screen and experiment system

The invention discloses a cyclone separator with a gradually enlarged inlet, a flow guide plate and a dustproof screen and an experiment system, and belongs to the technical field of gas-solid heterogeneous separation. The inlet of the cyclone separator is the gradually enlarged inlet which is internally provided with two flow guide plates, including a primary flow guide plate and a secondary flow guide plate; the dustproof screen is installed on the bottom of a central gas discharge pipe. The structure of the experiment system of the cyclone separator is that an air compressor is connected with the gradually enlarged inlet of the cyclone separator via a gas conveying pipeline; the gas conveying pipeline is sequentially provided with a temperature sensor, a mass flow rate meter, a first pressure sensor, an inlet of a solid particle feeder and a second pressure sensor; the central gas discharge pipe of the cyclone separator is connected with a dedusting device. According to the invention, a single dust-containing gas source is distributed by multiple channels; the flow state of the dust-containing gas streams is optimized; under the equal total gas intake amount, the treatment amount of the separator is improved; the flowing path of the dust-containing particles is changed by the dustproof screen; fine particles are effectively prevented from overflowing from the central gas discharge pipe; the separation efficiency is improved; the system pressure loss is reduced.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)

Forced circulation ionic membrane electrolytic bath

The invention discloses a forced circulation ionic membrane electrolytic bath, and relates to electrolytic baths. The anode ionic membrane electrolytic bath internally comprises an inlet pipe, an anode frame chamber, a gas-liquid separation chamber and an outlet; the anode frame chamber is of a frame structure, a plurality of gratings are arranged on the frame structure, and divide the anode frame chamber into a plurality of unit chambers, a plurality of baffle plates are distributed in each unit chamber, and the baffle plates are distributed on the gratings at the two ends of the unit chambers in a left-and-right staggered manner; and due to the fact that the thickness of the ionic membrane electrolytic bath is small, when the ionic membrane electrolytic bath is applied to the chlor-alkali technology process, electrolytic process of the high current density can be achieved, and therefore the yield is increased; secondly, due to the baffle effect of the baffle plates, the height of the ionic membrane electrolytic bath can be reduced to 1/2 to 3/4 of the height of a traditional ionic membrane electrolytic bath, and the manufacturing cost of the electrolytic bath can be greatly saved; and finally the baffle plates which incline by a certain angle enable electrolytes flowing through the baffle plates to rotate in an orientation manner, the radial mixing degree is increased, and the raw material using rate is better improved.
Owner:梧州市联溢化工有限公司

Flammable gas recycling thermal treatment furnace

The invention relates to a flammable gas recycling thermal treatment furnace which comprises a furnace body, a combustion chamber provided with a combustor and an exhaust discharge pipe, wherein a furnace pipe is arranged in the furnace body, a furnace door is arranged at a feeding end, a closed annular hot air channel is formed between the inner wall of the furnace body and the outer wall of the furnace pipe, and a high-temperature glue gas inlet and a flue gas exhaust opening are formed on the furnace body; the combustion chamber comprises a housing which is internally provided with a combustion cavity, wherein an air jet hole and a gas inlet are formed on the housing, the combustion chamber is arranged out of the furnace body, the air jet hole is communicated with the high-temperature flue gas inlet on the furnace body, and the gas inlet of the exhaust gas discharge pipe is communicated with the inner side of the furnace pipe and the gas outlet of the exhaust gas discharge pipe extends into the combustion cavity through the gas inlet on the combustion chamber. According to the furnace provided by the invention, the combustion chamber and the furnace body are independently arranged, the exhaust gas discharge pipe introduces flammable gas generated in the furnace pipe into the combustion chamber to be combusted, and high-temperature flue gas generated by combustion is introduced into a hot air channel to supply energy for thermal treatment, so that energy sources are recycled, the energy consumption is reduced, and the furnace is energy-saving and environmental-friendly, easy to overhaul, simple in integral structure and low in cost.
Owner:托普工业(江苏)有限公司

Electric valve

The invention discloses an electric valve. The electric valve comprises a valve body, a valve seat, a sliding block and a driving device. The valve body is provided with a first connecting port, a second connecting port and a third connecting port; the valve seat is fixed into the valve body and provided with a first through hole and a second through hole, the first through hole is one part of a flowing passage formed between the first connecting port and the third connecting port, and the second through hole is one part of the a flowing passage formed between the second connecting port and the third connecting port; the sliding block is located in the valve body and slidably matched with the valve seat, and when the sliding block rotates relative to the valve seat, the condition that thefirst through hole is completely covered and the second through hole communicates with the third connecting port, or the first through hole and a part of the second through hole are synchronously covered, or the second through hole is completely covered and the first through hole communicates with the third connecting port can be realized; and the driving device drives the sliding block to rotate.The structural design of the electric valve can effectively simplify the design of a pipeline.
Owner:ZHEJIANG SANHUA AUTOMOTIVE COMPONENTS CO LTD

Plugboard type baffled anaerobic tank based on biological framework and sewage denitrification method

The invention provides a plugboard type baffled anaerobic tank based on a biological framework and a sewage denitrification method.The plugboard type baffled anaerobic tank is internally provided with a plurality of baffle plates and a plug-flow stirrer, the bottom of the anaerobic tank is provided with a water inlet pipe, the upper portion of the anaerobic tank is provided with an effluent weir and a water outlet pipe, and the upper portion of the effluent weir is provided with a water inlet pipe; a plurality of groups of longitudinal slots matched with the baffle plates in size are formed in the side wall of the anaerobic tank, each baffle plate comprises a baffle plate frame body and a biological frame mounted in the baffle plate frame body, and the biological frame is of a hollow porous structure and is filled with a sulfur autotrophic denitrification biological carrier. The plugboard type baffling anaerobic tank provided by the invention can flexibly adjust the baffling path of sewage, avoids deposition and accumulation, improves the reaction treatment efficiency of the sewage, is convenient to maintain, and has remarkable progress compared with the prior art.
Owner:合肥涞澈水生态科技有限公司

Multifunctional integrated air conditioner

The invention provides a multifunctional integrated air conditioner. The multifunctional integrated air conditioner comprises an air conditioner main unit, an indoor unit, an outdoor unit, an indoor air inlet, an indoor air outlet, an outdoor air outlet and a control device, wherein the indoor unit and the outdoor unit are distributed on the two sides of the air conditioner main unit respectively,the indoor air outlet is connected with the indoor unit, and the outdoor air outlet is connected with the outdoor unit; the indoor air inlet communicates with the indoor environment, the indoor unitand the outdoor unit; the control device is used for controlling the indoor air inlet, the outdoor unit and the indoor unit to be started, so that indoor air enters the indoor unit and the outdoor unit through the indoor air inlet and is exhausted through the indoor air outlet and the outdoor air outlet respectively; the control device is further used for controlling the indoor air inlet and the outdoor unit to be closed so that outdoor fresh air can enter the indoor environment through the outdoor air outlet, the outdoor unit, the indoor unit and the indoor air outlet in sequence. The multifunctional integrated air conditioner has the functions of refrigeration, fresh air and air exchange at the same time, and is simple in structure.
Owner:ZHEJIANG MELLKIT INTERGRATED CEILING CO LTD

Oxygen-enriched membrane oxygen generation device

An oxygen-enriched membrane oxygen generation device comprises a inner cabin body and an outer cabin body which are nested inside and outside as well as a cabin seat covering openings in the bottoms of the cabin bodies in a sealing manner, wherein both the inner cabin body and the outer cabin body adopt a reversely-buckled barrel shape; an air feeding port is formed in the cabin seat on the inner side of the inner cabin body, a first nitrogen-rich gas exhaust port is formed in the top of the inner cabin body, a gas flow baffle is configured in the inner cabin body, multiple oxygen permeation windows are densely formed in the side wall, and oxygen-enriched membranes are airtightly mounted on the oxygen permeation windows; an oxygen-enriched gas output port is formed in the top of the outer cabin body, and a second oxygen-enriched gas exhaust port is formed in the cabin seat and between the outer cabin body and the inner cabin body; an exhaust end of the first nitrogen-rich gas exhaust port and a gas inlet end of the second nitrogen-rich gas exhaust port are connected through a flexible first exhaust pipe, and a second exhaust pipe provided with a gas flow control valve is configured at the exhaust end of the second nitrogen-rich gas exhaust port. According to the device, the modular and small-size oxygen-enriched membranes are easy to replace by a user; the gas flow baffle can prevent nitrogen from enriching in the side wall area of the inner cabin body, and the oxygen preparation effect in the long-time use process is guaranteed.
Owner:SHANGHAI UNIV OF ENG SCI

A friction stir welding tool for lap joints

InactiveCN103521912BStrengthening Strength CoefficientReduce vertical movementNon-electric welding apparatusLap jointEngineering
The invention discloses a friction stir welding tool for an overlap joint. The friction stir welding tool is composed of a shaft shoulder and a stirring needle. The stirring needle is shaped like a frustum, the small bottom of the frustum is connected with the shaft shoulder, the end face of the large bottom of the frustum is provided with a round concave hole, and the outer surface of the frustum is provided with three arc-shaped grooves distributed in the circumferential direction. Meanwhile, the invention further discloses the stirring needle and the structures and the sizes of all parts of the shaft shoulder. When a stirring tool designed through the friction stir welding tool is adopted for carrying out friction stir overlap welding, the stirring needle of the frustum shape generates oblique upward thrust on plasticized metal around the overlap face, so that the perpendicular motion of the plasticized metal is reduced, and the perpendicular moving tendency of the overlap face is reduced. Moreover, as the concave hole and the grooves in the side face are formed in the bottom of the stirring needle, material flow in weld zones is improved, the overlap face is broken completely, and the weld metal can be mixed fully. Accordingly, the size of the hook-like defect in a weld joint obtained through welding of the tool is greatly reduced, and the strength coefficient of the joint is remarkably improved.
Owner:TIANJIN UNIV

Gyrotron with compact liquid cooling structure

The present invention discloses a gyrotron with a compact liquid cooling structure, belonging to the technical field of gyrotrons. The gyrotron comprises a waveguide tube section, a cooling cavity anda cooling pipe sleeving the waveguide tube section, the outer wall of the waveguide tube section is provided with a dividing strip which is extended along the axial direction of the waveguide tube todivide the cooling cavity into a first cooling region and a second cooling region which communicate to each other through a circumference channel arranged on the dividing strip, a liquid inlet and aliquid outlet are arranged at the same end of the cooling cavity, and the circumference channel is arranged at the other end of the cooling cavity. The gyrotron with the compact liquid cooling structure is provided with the dividing strip and the circumference channel to change the flow path of the cooling liquid to allow the liquid outlet and the liquid inlet of the cooling cavity to be arrangedat the same end of the cooling cavity on the premise of avoiding that the bulk mass of dead water zone appears in the cooling cavity so as to allow the whole structure of the waveguide tube section onthe radial direction to maintain a compact single-layer structure.
Owner:INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS

Preparation method and application of functional cigarette filter stick capable of selectively reducing tar and lessening harm

The invention discloses a preparation method and application of a functional cigarette filter stick capable of selectively reducing tar and lessening harm. The preparation method for the functional filter stick capable of reducing tar and lessening harm comprises the following steps: opening acetate tows until the width of the acetate tows to be more than two times of that of embossing paper; coating and bonding the embossing paper so as to form an acetate tow / embossing paper / acetate tow interlayer structure; after the interlayer structure is folded and contracted forwardly, reversely, orderly and alternately for multiple times, wrapping the interlayer structure with inner wrapping forming paper for forming, and slitting the wrapped interlayer structure so as to obtain an embossing paper and acetate fiber mixed filter stick section; butting and compounding the embossing paper and acetate fiber mixed filter stick section with a hollow acetate fiber filter stick section; and wrapping the butted and compounded filter stick section with outer wrapping forming paper for forming, so as to obtain the functional filter stick. The functional filter stick is not added with any tar-reduction and harm-lessening additive, and relatively low in cost, has a good tar-reduction effect in comparison with a common hollow acetate fiber composite filter stick, meanwhile, has an excellent selective reduction effect for phenol, crotonaldehyde and other harmful ingredient in smoke, and does not obviously change the smoke mouthfeel.
Owner:CHINA TOBACCO HUNAN INDAL CORP

Deodorization device for industrial waste gas treatment

The invention discloses a deodorization device for industrial waste gas treatment. The device comprises a treatment box body, the inner wall of the treatment box body is fixedly connected with a first baffle plate, a second baffle plate and a mounting groove, the first baffle plate and the second baffle plate are respectively located at two sides of the mounting groove, the inner wall of the mounting groove is fixedly connected with a rotating motor, an output shaft of the rotating motor is fixedly connected with a reciprocating lead screw, the reciprocating lead screw is sleeved with a movable block matched with the reciprocating lead screw, and the end, away from the rotating motor, of the reciprocating lead screw is fixedly connected with a rotating rod. According to the invention, the flowing path of industrial waste gas is changed, the industrial waste gas can be in full contact with the sprayed treatment liquid, the industrial waste gas is prevented from being directly discharged without being treated, the deodorization effect is improved, large-particle dust in the industrial waste gas can be cleaned in advance, the large dust is prevented from being attached to the inner wall of the device to form difficult-to-clean substances after being in contact with the treatment liquid, and sufficient treatment on the industrial waste gas is ensured.
Owner:合创博远(北京)科技有限公司

Multi-way reversing valve

The invention discloses a multi-way reversing valve. The multi-way reversing valve comprises a shell and a rotary core structure, wherein the shell is provided with at least three input pipelines and at least three output pipelines; the rotary core structure is assembled in the shell in a close fit way and comprises a connecting shaft and a body; the body is fixedly connected with the connecting shaft, is of an inversed circular truncated cone shape, and comprises an input part and an output part; the input part is arranged at the top end of the body and is provided with at least three inlets and at least three first channel structures communicated with the inlets in a one-to-one manner; the output part is arranged adjacent to the downside of the input part and comprises at least three circles of grooves and at least three second channel structures; the three circles of grooves are concentrically formed along the position, facing the downside of the body, on the connecting shaft; the diameters of the grooves are gradually reduced towards the downside of the body; each groove is provided with an outlet; the second channel structures are communicated with the outlets and the first channel structures in a one-to-one manner; the input pipelines are communicated with the inlets in a one-to-one manner and the output pipelines are communicated with the grooves in a one-to-one manner. During rotation, the connecting shaft drives the body to rotate together, and the flowing path of liquid can be changed.
Owner:JOFONT BIOTECH

A forced circulation ion membrane electrolyzer

The invention discloses a forced circulation ionic membrane electrolytic bath, and relates to electrolytic baths. The anode ionic membrane electrolytic bath internally comprises an inlet pipe, an anode frame chamber, a gas-liquid separation chamber and an outlet; the anode frame chamber is of a frame structure, a plurality of gratings are arranged on the frame structure, and divide the anode frame chamber into a plurality of unit chambers, a plurality of baffle plates are distributed in each unit chamber, and the baffle plates are distributed on the gratings at the two ends of the unit chambers in a left-and-right staggered manner; and due to the fact that the thickness of the ionic membrane electrolytic bath is small, when the ionic membrane electrolytic bath is applied to the chlor-alkali technology process, electrolytic process of the high current density can be achieved, and therefore the yield is increased; secondly, due to the baffle effect of the baffle plates, the height of the ionic membrane electrolytic bath can be reduced to 1 / 2 to 3 / 4 of the height of a traditional ionic membrane electrolytic bath, and the manufacturing cost of the electrolytic bath can be greatly saved; and finally the baffle plates which incline by a certain angle enable electrolytes flowing through the baffle plates to rotate in an orientation manner, the radial mixing degree is increased, and the raw material using rate is better improved.
Owner:梧州市联溢化工有限公司
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